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(c) STFI
14.12.2021

Funding Project Raw Material Classification of Recycled Fibers

For centuries, old textiles have been used to make tear fibers and processed into new textile products. This effective recycling is one of the oldest material cycles in the world. Today, it is not only clothing that is recycled, but also high-quality technical textiles. As the products of the textile industry evolve, so do the demands on textile recycling. The basis for this is a clear assessment and classification of raw materials.

For centuries, old textiles have been used to make tear fibers and processed into new textile products. This effective recycling is one of the oldest material cycles in the world. Today, it is not only clothing that is recycled, but also high-quality technical textiles. As the products of the textile industry evolve, so do the demands on textile recycling. The basis for this is a clear assessment and classification of raw materials.

In the research project of the German Institutes of Textile and Fiber Research Denkendorf (DITF) and the Sächsisches Textilforschungsinstitut e.V. (STFI - Saxony Textile Research Institute), a methodology is being developed that will make it possible to analyze the tearing as well as the subsequent processes with regard to fiber quality. The systematic analysis should make it possible to optimize the subsequent spinning processes in such a way that the recycled content of the yarn can be increased without the yarn properties differing significantly from those of a yarn consisting of 100% good fibers. These yarns can then be processed into sustainable textile products such as clothing or composite components.

The project, which is funded by the BMWi/IGF, is scheduled to run for two years and will end on December 31, 2022. The main benefits for the participating companies are to enable them to make greater use of secondary raw materials, to open up new markets through technologies or products developed in the project, to initiate synergies and long-term cooperation, and to prepare a joint market presence.    

The project includes several steps:

  • Material selection and procurement
    Cotton fibers to be processed are obtained from used textiles (T-shirts) and waste from the cotton spinning mill. Aramid fibers are processed from used protective clothing and technical textiles.
  • Optimization of the preparation / dissolution of the textiles
    To ensure that the fibers are detached from the corresponding textiles as gently as possible and with a not too high reduction, exact settings have to be found for the tearing process, which are technologically very demanding and require a lot of experience.
  • Determination of the quality criteria for the evaluation of the fiber dissolution
    In order to define the quality criteria, the fibers coming from the tearing mill are determined by means of an MDTA-4 measuring device from Textechno GmbH & Co. KG. The criteria determined are to be used to characterize the (lowest possible) fiber shortening caused by the tearing process.
  • Determination of optimized settings in the spinning process
    In order to determine the optimum settings for producing a yarn from the recycled fibers, they are spun after the rotor spinning process. By adjusting the spinning process, the aim is to produce a yarn that has good uniformity and also appropriate firmness.
  • Production and comparison of yarns from recycled raw materials
    In order that the recycled fibers - consisting of aramid and cotton - can each be used to produce an area-measured material, the material is to be processed at industrial scale. For this purpose, the fibers are processed over a complete blowroom line with following sliver production over adapted cards. After drawing and the following roving production, yarns are produced according to the rotor or ring spinning process. The finished yarns are used to produce knitted fabrics.
  • Coordination, analysis of results and preparation of reports
    The final report is prepared by the DITF and the STFI. The results will be transferred through publications, technical information to associations and trade fair presentations. Regular meetings with the participating companies are planned.

Textination spoke with Stephan Baz, Deputy Head of the Competence Center Staple Fiber, Weaving & Simulation, Head of Staple Fiber Technology and Markus Baumann, Research Associate at the Competence Center Staple Fiber, Weaving & Simulation (both DITF) as well as Bernd Gulich, Head of Department Nonwovens/Recycling and Johannes Leis, Research Associate Focus Nonwovens/Recycling (both STFI) about the current status of the funding project.

What is the current status of the project?
We are currently in the phase of carrying out trials and the iterative optimization of several project components. As expected, several loops are necessary for the mechanical preparation itself and also for the adjustment of the spinning process with the different variants. Ultimately, after all, the project aims at coordinating the processes of mechanical preparation and spinning as processing in order to achieve optimum results. At the same time, determining the quality criteria of the fibers produced is not trivial. This also requires the further development of processes and test methods that can be implemented productively in industry and that allow the quality of the fibers produced to be assessed effectively and unaffected by residual yarns, for example. What is really remarkable is the interest and willingness of the industry to drive the project work forward. The considerable quantities of materials required for our trials were purchased from ReSales Textilhandel und -recycling GmbH, Altex Textil-Recycling GmbH & Co. KG and Gebrüder Otto GmbH & Co. KG. Furthermore, with Temafa Maschinenfabrik GmbH, Nomaco GmbH & Co. KG, Schill + Seilacher GmbH, Spinnerei Neuhof GmbH & Co. KG and Maschinenfabrik Rieter AG, many members of the project-supporting committee are actively involved in the project, from consulting to the providing of technologies. The company Textechno Herbert Stein GmbH & Co. KG has provided a testing device of the type MDTA4 for the duration of the project and supports our work with regard to the evaluation of the mechanically prepared fibers. We are of course particularly pleased about this, as it has allowed us to look at and analyze several technologies in both mechanical preparation, testing and spinning. We expect to be able to make more detailed statements at the beginning of the coming year.

Which approaches do you think are particularly promising?
With regard to technologies, we must refer to the evaluation and analysis of the trials, which are currently still ongoing. We will be able to go into more detail in the first quarter of next year.

Of course, things are already emerging. With meta-aramid waste, promising approaches could be found very quickly; with post-consumer cotton, this is considerably more complex. Obviously, there is a link between the quality of the raw material and the quality of the products. In some cases, we have already been able to determine very low average fiber lengths in the procured goods; to a certain extent, these are of course directly reflected in the output of our processes. From this, and this is not a new finding, a great importance of the design of the textiles is again derived.

What are the challenges?
In addition to the expected high short fiber content, the residual yarns after the tearing process are an issue of particular focus. The proportion of these residual yarns can vary between the materials and preparation technologies, but the further dissolution of the products of the tearing process is essential.

If the processes are considered further in a utilization phase, the question of design naturally also arises for the best possible use of recycled fibers. Many problems, but also the approaches to solutions for the use of comparatively short fibers, can also be expected to apply to the (multiple) use of mechanically recycled fibers.

Can we speak of upcycling in the final product?
We see yarn-to-yarn recycling neither as upcycling nor downcycling, but as closed-loop recycling. The background is that the products are to go into the same application from which they came and have to compete with primary material. This means that certain specific requirements have to be met and at the same time there is considerable price pressure. In the case of downcycling, a significant reduction in properties is accepted, while in the case of upcycling, the higher-priced application can make up for the reprocessing effort. In the attempt to produce yarn material again from yarn material, both are only permissible to a small extent. This represents the particular challenge.

What does a recyclate prepared from used textiles mean for the spinning process?
Part of this question is to be answered in the project by the detailed classification of the processed fibers and is thus the subject of the tests currently underway. It turns out that, in addition to the rather obvious points such as significantly reduced fiber length, process disturbances due to undissolved fabrics and yarn pieces, there are also less obvious aspects to be considered, such as a significantly increased outgoing quantity for processing in the spinning process. The outgoing quantity is of particular interest here, because in the end the newly produced yarn should also contain a considerable proportion of prepared fibers.

What consequences does this have for textile machinery manufacturing?
The consequences that can already be estimated at the present time are that, particularly in the processing of cotton, the machinery in the spinning preparatory mill is specialized in the processing of (new) natural fibers with a certain amount of dirt. In contrast to new fibers, processed fibers are clean fibers with a significantly higher proportion of short fibers. Elements that are good at removing dirt also reject an increased amount of short fibers, which can lead to unintentionally high waste quantities under certain circumstances. It is therefore necessary to adapt the established machine technology to the new requirement profile of the raw material "processed fibers". Analogous adaptations are probably necessary along the entire processing chain up to the yarn. In the drafting system of the spinning machine, of course, this is due more to the high short fiber ratio than to elements that have been optimized for cleaning out dirt and foreign substances.

Source:

Textination GmbH

(c) nova-Institut GmbH
07.12.2021

Finalists for „Cellulose Fibre Innovation of the Year 2022” announced

Cellulose Fibre Innovation of the Year 2022: Cellulose Fibre Solutions are expanding from hygiene and textiles as well as non-wovens up to alternatives for carbon fibres for light-weight applications.

Great submissions made the nomination for the Innovation Award difficult. All of them present promising sustainable solutions in the field of cellulose fibres value chain. Six of them now get the chance to demonstrate their potential to a wide audience in Cologne (Germany), and online.

Cellulose Fibre Innovation of the Year 2022: Cellulose Fibre Solutions are expanding from hygiene and textiles as well as non-wovens up to alternatives for carbon fibres for light-weight applications.

Great submissions made the nomination for the Innovation Award difficult. All of them present promising sustainable solutions in the field of cellulose fibres value chain. Six of them now get the chance to demonstrate their potential to a wide audience in Cologne (Germany), and online.

For the second time, nova-Institute grants the “Cellulose Fibre Innovation of the Year” within the framework of the “International Conference on Cellulose Fibres 2022” (2-3 February 2022). The advisory board of the conference nominated six  products, ranging from cellulose made of orange- and wood pulp to a novel technology for cellulose fibre production. The presentations, election of the winner by the conference audience and the award ceremony will take place on the first day of the conference.

Cellulose fibres show an increasingly expanding wide range of applications, while at the same time markets are driven by technological developments and political framework conditions, especially bans and restrictions on plastics and increasing sustainability requirements. The conference provides rich information on opportunities for cellulose fibres through policy assessment, a session on sustainability, recycling and alternative feedstocks as well as latest development in pulp, cellulose fibres and yarns. This includes application such as non-wovens, packaging and composites.

Here are the nominees:
Carbon Fibres from Wood – German Institutes of Textile and Fiber Research Denkendorf (Germany)
The HighPerCellCarbon® technology is a sustainable and alternative process for the production of carbon fibres made from wood. The technology starts with wet spinning of cellulosic fibres using ionic liquids (IL) as direct solvent in an environmentally friendly, closed loop filament spinning process (HighPerCell® technology). These filaments are directly converted into carbon fibres by a low-pressure stabilisation process, followed by a suitable carbonisation process. No exhaust fumes or toxic by-products are formed during the whole process. Furthermore, the approach allows a complete recycling of solvent and precursor fibres, creating a unique and environmentally friendly process. Carbon fibres are used in many lightweight applications and the fibres are a sustainable alternative to fossil-based ones.

Fibers365, Truly Carbon-Negative Virgin Fibres from Straw – Fibers365 (Germany)
Fibers365 are the first carbon-negative virgin straw fibres on the market. The Fibers365 concept is based on a unique, state of the art process to provide functional, carbon negative, and competitive non-wood biomass products such as virgin fibres for paper, packaging and textile purposes as well as high value process energy, biopolymer and fertilizer side streams. The products are extracted from the stems of annual food plants such as straw by a chemical-free, regional, farm level steam explosion pulping technology, allowing an easy separation of the fibres from sugars, lignin, organic acid and minerals. In the case of annual plants, CO2 emissions are recaptured within 12 months from their production date, offering “instant”, yearly compensation of corresponding emissions.

Iroony® Hemp and Flax Cellulose – RBX Créations (France)
Iroony® is a branded cellulose made by RBX Créations from hemp. This resistant hemp plant grows quickly within in a few months, massively captures carbon and displays a high content of cellulose. The biomass is directly collected from French farmers who cultivate without chemicals or irrigation, in extended rotation cycles, contributing to soil regeneration and biodiversity. For a diversified supply, the hemp can be combined with organically-grown flax. Through its patented process, RBX Créations extracts high-purity cellulose, perfectly suitable for spinning technologies such as HighPerCell® of DITF research centre. The resulting fibres display versatile properties of fineness, tenacity and stretch, for applications like clothing or technical textiles. Iroony® combines low impact, trackability and performance.

SPINNOVA, Sustainable Textile Fibre without Harmful Chemicals – Spinnova (Finland)
Spinnova’s innovative technology enables production of sustainable textile fibres in a mechanical process, without dissolving or any harmful chemicals. The process involves use of paper-grade pulp and mechanical refining to turn pulp into microfibrillated cellulose (MFC). The fibre suspension consisting of MFC is extruded to form textile fibre, without regeneration processes. The Spinnova process does not generate any side waste, and the environmental footprint of SPINNOVA® including 65 % less CO2 emissions and 99 % less water compared to cotton production. Spinnova’s solution is also scalable: Spinnova targets to reach 1 million tonnes annual production capacity in the next 10 to 12 years.    

Sustainable Menstruation Panties: Application-driven Fibre Functionalisation – Kelheim Fibres (Germany)
Kelheim’s plant-based and biodegradable fibres contribute significantly to a sustainable future in the field of reusable hygiene textiles. Through innovative functionalisation they are specifically adjusted to the requirements of the single layers and thereby reach a performance comparable to that of synthetic fibres. A unique duality in fibre technology is created: sustainably manufactured cellulosic fibres that allow for high wearing comfort and reusability with extraordinary, durable performance. Fibre concepts comprise Celliant® Viscose, an in-fibre infrared solution and Danufil® Fibres in the top sheet, Galaxy, a trilobal fibre for the ADL, Bramante, a hollow viscose fibre, in the absorbing core and a water repellent woven fabric, a biodegradable PLA film or a sustainable coating as a back sheet.

TENCEL™ branded Lyocell Fibre made of Orange and Wood Pulp – Orange Fiber (Italy)
Orange Fiber is the world's first company to produce a sustainable textile fibre from a patented process for the extraction of cellulose to be spun from citrus juice leftovers, which are more than 1 million tonnes a year just in Italy. The result of our partnership with Lenzing Group, leading global producer of wood-based specialty fibres, is the first ever TENCEL™ branded lyocell fibre made of orange and wood pulp. A novel cellulosic fibre to further inspire sustainability across the value chain and push the boundaries of innovation. This fibre, part of the TENCEL™ Limited Edition initiative, is characterized by soft appeal and high moisture absorbance and has already obtained the OEKO-TEX Standard 100 certificate and is undergoing a diverse set of other sustainability assessments.

(c) Toray
23.11.2021

Toray Industries: A Concept to change Lives

Founded in January 1926, Tokyo-based Japanese chemical company Toray Industries, Inc. is known as the world's largest producer of PAN (polyacrylonitrile)-based carbon fibers. But its overall portfolio includes much more. Textination spoke with Koji Sasaki, General Manager of the Textile Division of Toray Industries, Inc. about innovative product solutions, new responsibilities and the special role of chemical companies in today's world.

Toray Industries is a Japanese company that - originating in 1926 as a producer of viscose yarns - is on the home stretch to its 100th birthday. Today, the Toray Group includes 102 Japanese companies and 180 overseas. They operate in 29 countries. What is the current significance of the fibers and textiles business unit for the success of your company?

Founded in January 1926, Tokyo-based Japanese chemical company Toray Industries, Inc. is known as the world's largest producer of PAN (polyacrylonitrile)-based carbon fibers. But its overall portfolio includes much more. Textination spoke with Koji Sasaki, General Manager of the Textile Division of Toray Industries, Inc. about innovative product solutions, new responsibilities and the special role of chemical companies in today's world.

Toray Industries is a Japanese company that - originating in 1926 as a producer of viscose yarns - is on the home stretch to its 100th birthday. Today, the Toray Group includes 102 Japanese companies and 180 overseas. They operate in 29 countries. What is the current significance of the fibers and textiles business unit for the success of your company?

The fibers’ and textiles’ business is both the starting point and the foundation of Toray's business development today. We started producing viscose yarns in 1926 and conducted our own research and development in nylon fibers as early as 1940. And since new materials usually require new processing methods, Toray also began investing in its own process technology at an early stage. On the one hand, we want to increase our sales, and on the other hand, we want to expand the application possibilities for our materials. For this reason, Toray also began to expand its business from pure fibers to textiles and even clothing. This allows us to better respond to our customers' needs while staying at the forefront of innovation.

Over the decades, Toray has accumulated a great deal of knowledge in polymer chemistry and organic synthesis chemistry - and this know-how is the foundation for almost all of our other business ventures. Today, we produce a wide range of advanced materials and high-value-added products in plastics, chemicals, foils, carbon fiber composites, electronics and information materials, pharmaceuticals, medicine and water treatment. However, fibers and textiles remain our most important business area, accounting for around 40% of the company's sales.

What understanding, what heritage is still important to you today? And how do you live out a corporate philosophy in the textile sector that you formulate as "Contributing to society through the creation of new value with innovative ideas, technologies and products"?

Toray has consistently developed new materials that the world has never seen before. We do this by focusing on our four core technologies: Polymer chemistry, organic synthetic chemistry, biotechnology and nanotechnology. We do this by focusing on our four core technologies: Polymer chemistry, organic synthetic chemistry, biotechnology and nanotechnology. For textiles, this means we use new polymer structures, spinning technologies and processing methods to develop yarns with unprecedented properties. We always focus on the needs and problems of the market and our customers.

This approach enables us to integrate textiles with new functions into our everyday lives that natural fibers and materials cannot accomplish. For example, we offer sportswear and underwear that absorb water excellently and dry very quickly, or rainwear and outdoor clothing with excellent water-repellent properties that feature a less bulky inner lining. Other examples include antibacterial underwear, uniforms, or inner linings that provide a hygienic environment and reduce the growth of odor-causing bacteria. People enjoy the convenience of these innovative textiles every day, and we hope to contribute to their daily comfort and improve their lives in some way.

In 2015, the United Nations adopted 17 sustainable development goals – simply known as the 2030 Agenda, which came into force on January 01, 2016. Countries were given 15 years to achieve them by 2030. In your company, there is a TORAY VISION 2030 and a TORAY SUSTAINABILITY VISION. How do you apply these principles and goals to the textile business? What role does sustainability play for this business area?

Sustainability is one of the most important issues facing the world today - not only in the textile sector, but in all industries. We in the Toray Group are convinced that we can contribute to solving various problems in this regard with our advanced materials. At the same time, the trend towards sustainability offers interesting new business approaches. In our sustainability vision, we have set four goals that the world should achieve by 2050. And we have defined which problems need to be addressed to achieve this.

We must:

  1. accelerate measures to combat climate change,
  2. implement sustainable, recycling-oriented solutions in the use of resources and in production,
  3. provide clean water and air, and
  4. contribute to better healthcare and hygiene for people around the world.

We will drive this agenda forward by promoting and expanding the use of materials that respond to environmental issues. In the textile sector, for example, we offer warming and cooling textiles – by eliminating the need for air conditioning or heating in certain situations, they can help reduce energy costs. We also produce environmentally friendly textiles that do not contain certain harmful substances such as fluorine, as well as textiles made from biomass, which use plant-based fibers instead of conventional petrochemical materials. Our product range also includes recycled materials that reduce waste and promote effective use of resources.

The TORAY VISION 2030, on the other hand, is our medium-term strategic plan and looks at the issue of sustainability from a different angle: Toray has defined the path to sustainable and healthy corporate growth in it. In this plan, we are focusing on two major growth areas: Our Green Innovation Business, which aims to solve environmental, resource and energy problems, and the Life Innovation Business, which focuses on improving medical care, public health, personal safety and ultimately a longer expectancy of life.

Innovation by Chemistry is the claim of the Toray Group. In a world where REACH and Fridays for Future severely restrict the scope of the chemical industry, the question arises as to what position chemistry can have in the textile industry. How do chemistry, innovation and sustainability fit together here?

The chemical industry is at a turning point today. The benefits that this industry can bring to civilization are still enormous, but at the same time, disadvantages such as the waste of resources and the negative impact on the environment and ecosystems are becoming increasingly apparent. In the future, the chemical industry will have to work much more towards sustainability - there is no way around it.

As far as textiles are concerned, we believe there are several ways to make synthetic materials more sustainable in the future. One of these, as I said, is materials made from plants instead of petrochemical raw materials. Another is to reduce the amount of raw materials used in production in the first place – this can be achieved, for example, by collecting and recycling waste materials from production or sales. Biodegradable materials that reduce the impact of waste products on the environment are another option worth pursuing, as is the reduction of environmentally harmful substances used in the production process. We are already looking at all of these possibilities in Toray's synthetic textiles business. At the same time, by the way, we make sure to save energy in our own production and minimize the impact on the environment.

Toray's fibers & textiles segment focuses on synthetic fibers such as nylon, polyester and acrylic, as well as other functional fibers. In recent years, there has been a clear trend on the market towards cellulosic fibers, which are also being traded as alternatives to synthetic products. How do you see this development – on the one hand for the Toray company, and on the other hand under the aspect of sustainability, which the cellulosic competitors claim for themselves with the renewable raw material base?

Natural fibers, including cellulose fibers and wool, are environmentally friendly in that they can be easily recycled and are rapidly biodegradable after disposal. However, to truly assess their environmental impact, a number of other factors must also be considered: Primarily, there is the issue of durability: precisely because natural fibers are natural, it is difficult to respond to a rapid increase in demand, and quality is not always stable due to weather and other factors.

Climatic changes such as extreme heat, drought, wind, floods and damages from freezing can affect the quantity and quality of the production of natural fibers, so that the supply is not always secured. In order to increase production, not only does land have to be cleared, but also large amounts of water and pesticides have to be used to cultivate it – all of which is harmful to the environment.

Synthetic fibers, on the other hand, are industrial products manufactured in controlled factory environments. This makes it easier to manage fluctuations in production volume and ensure consistent quality. In addition, certain functional properties such as resilience, water absorption, quick drying and antibacterial properties can be embedded into the material, which can result in textiles lasting longer in use.

So synthetic fibers and natural fibers, including cellulose fibers, have their own advantages and disadvantages – there is no panacea here, at least not at the moment. We believe: It is important to ensure that there are options that match the consumer's awareness and lifestyle. This includes comfort in everyday life and sustainability at the same time.

To what extent has the demand for recycled products increased? Under the brand name &+™, Toray offers a fiber made from recycled PET bottles. Especially with the "raw material base: PET bottles", problems can occur with the whiteness of the fiber. What distinguishes your process from that of other companies and to what extent can you compete with new fibers in terms of quality?

During the production of the "&+" fiber, the collected PET bottles are freed from all foreign substances using special washing and filtering processes. These processes have not only allowed us to solve the problem of fiber whiteness – by using filtered, high-purity recycled polyester chips, we can also produce very fine fibers and fibers with unique cross sections. Our proven process technologies can also be used to incorporate specific textures and functions of Toray into the fiber. In addition, "&+" contains a special substance in the polyester that allows the material to be traced back to the recycled PET bottle fibers used in it.

We believe that this combination of aesthetics, sustainability and functionality makes the recycled polyester fiber "&+" more competitive than those of other companies. And indeed, we have noticed that the number of requests is steadily increasing as companies develop a greater awareness of sustainability as early as the product planning stage.

How is innovation management practiced in Toray's textile division, and which developments that Toray has worked on recently are you particularly proud of?

The textile division consists of three sub-divisions focusing on the development and sale of fashion textiles (WOMEN'S & MEN'S WEAR FABRICS DEPT.), sports and outdoor textiles (SPORTS WEAR & CLOTHING MATERIALS FABRICS DEPT.) and, specifically for Japan, textiles for uniforms used in schools, businesses and the public sector (UNIFORM & ADVANCED TEXTILES DEPT.).

In the past, each division developed its own materials for their respective markets and customers. However, in 2021, we established a collaborative space to increase synergy and share information about textiles developed in different areas with the entire department. In this way, salespeople can also offer their customers materials developed in other departments and get ideas for developing new textiles themselves.

I believe that the new structure will also help us to respond better to changes in the market. We see, for example, that the boundaries between workwear and outdoor are blurring – brands like Engelbert Strauss are a good example of this trend. Another development that we believe will accelerate after the Corona pandemic is the focus on green technologies and materials. This applies to all textile sectors, and we need to work more closely together to be at the forefront of this.

How important are bio-based polyesters in your research projects? How do you assess the future importance of such alternatives?

I believe that these materials will play a major role in the coming years. Polyester is made from purified terephthalic acid (PTA), which again consists of paraxylene (PX) and ethylene glycol (EG). In a first step, we already offer a material called ECODEAR™, which uses sugar cane molasses waste as a raw material for EG production.

About 30% of this at least partially bio polyester fiber is therefore biologically produced, and the material is used on a large scale for sportswear and uniforms. In the next step, we are working on the development of a fully bio-based polyester fiber in which the PTA component is also obtained from biomass raw materials, such as the inedible parts of sugar cane and wood waste.

Already in 2011, we succeeded in producing a prototype of such a polyester fiber made entirely from biomass. However, the expansion of production at the PX manufacturer we are working with has proven to be challenging. Currently, we are only producing small sample quantities, but we hope to start mass production in the 2020s.

Originally starting with yarn, now a leading global producer of synthetic fibers for decades, you also work to the ready-made product. The range extends from protective clothing against dust and infections to smart textiles and functional textiles that record biometric data. What are you planning in these segments?

In the field of protective clothing, our LIVMOA™ brand is our flagship material. It combines high breathability to reduce moisture inside the garment with blocking properties that keep dust and other particles out. The textile is suitable for a wide range of work environments, including those with high dust or grease levels and even cleanrooms. LIVMOA™ 5000, a high quality, also demonstrates antiviral properties and helps to ease the burden on medical personnel. The material forms an effective barrier against bacteria and viruses and is resistant to hygroscopic pressure. Due to its high breathability, it also offers high wearing comfort.

Our smart textile is called hitoe™. This highly conductive fabric embeds a conductive polymer – a polymer compound that allows electricity to pass through - into the nanofiber fabric. hitoe™ is a high-performance material for detecting biosignals, weak electrical signals that we unconsciously emit from our bodies.

In Japan, Toray has developed products for electrocardiographic measurements (ECGs) that meet the safety and effectiveness standards of medical devices. And in 2016, we submitted an application to the Japanese medical administrative authorities to register a hitoe™ device as a general medical device – this registration process is now complete. Overall, we expect the healthcare sector, particularly medical and nursing applications, to grow – not least due to increasing infectious diseases and growing health awareness among the elderly population. We will therefore continue to develop and sell new products for this market.

In 1885, Joseph Wilson Swan introduced the term "artifical silk" for the nitrate cellulose filaments he artificially produced. Later, copper, viscose and acetate filament yarns spun on the basis of cellulose were also referred to as artifical silk. Toray has developed a new innovative spinning technology called NANODESIGN™, which enables nano-level control of the fineness and shape of synthetic fibers. This is expected to create functions, aesthetics and textures that have not existed before. For which applications do you intend to use these products?

In NANODESIGN™ technology, the polymer is split into a number of microscopic streams, which are then recombined in a specific pattern to form a new fiber. By controlling the polymer flow with extreme precision, the fineness and cross-sectional shape of the fiber can be determined much more accurately than was previously possible with conventional microfiber and nanofiber spinning technologies. In addition, this technology enables the combination of three or more polymer types with different properties in one fiber – conventional technologies only manage two polymer types. This technology therefore enables Toray to specify a wide range of textures and functions in the production of synthetic fibers that were not possible with conventional synthetic fibers – and even to outperform the texture and feel of natural fibers. Kinari, our artificial silk developed with NANODESIGN technology, is a prime example here, but the technology holds many more possibilities – especially with regard to our sustainability goals.

What has the past period of the pandemic meant for Toray's textile business so far? To what extent has it been a burden, but in which areas has it also been a driver of innovation? What do you expect of the next 12 months?

The Corona catastrophe had a dramatic impact on the company's results: The Corona catastrophe had a dramatic impact on the company's results: In the financial year 2020, Toray's total sales fell by about 10% to 188.36 billion yen (about 1.44 billion euros) and operating profit by about 28% to 90.3 billion yen (about 690 million euros). The impact on the fiber and textile business was also significant, with sales decreasing by around 13% to 719.2 billion yen (approx. 5.49 billion euros) and operating profit by around 39% to 36.6 billion yen (approx. 280 million euros).

In the financial year 2021, however, the outlook for the fibers and textiles sector is significantly better: So far, the segment has exceeded its goals overall, even if there are fluctuations in the individual areas and applications. In the period from April to June, we even returned to the level of 2019. This is partly due to the recovering sports and outdoor sector. The fashion apparel market, on the other hand, remains challenging due to changing lifestyles that have brought lock-downs and home-office. We believe that a full recovery in business will not occur until the travel and leisure sector returns to pre-Corona levels.

Another side effect of the pandemic that we feel very strongly, is the growing concern about environmental issues and climate change. As a result, the demand for sustainable materials has also increased in the apparel segment. In the future, sustainability will be mandatory for the development and marketing of new textiles in all market segments. Then again, there will always be the question of how sustainable a product really is, and data and traceability will become increasingly important. In the coming years, the textile division will keep a close eye on these developments and develop materials that meet customers' needs.

About the person:
Koji Sasaki joined Toray in 1987. In his more than 30 years with the company, he has held various positions, including a four-year position as Managing Director of Toray International Europe GmbH in Frankfurt from 2016 to 2020. Since 2020, Koji Sasaki has been responsible for Toray's textile division and serves as acting chairman of Toray Textiles Europe Ltd. In these roles, he supervises the company's development, sales and marketing activities in the apparel segment, including fashion, sports and work or school uniforms.

The interview was conducted by Ines Chucholowius, Managing partner Textination GmbH

(c) PERFORMANCE DAYS
16.11.2021

PERFORMANCE DAYS 2021: Hybrid Event in December

From December 1 to 2, 2021, the industry will meet up again live at the trade fair center in Munich. Trade visitors, industry insiders and experts can look forward to inter-personal exchanges, intensive networking, exciting fabric innovations and various other program highlights. The fair will go ahead in strict compliance with the current official hygiene regulations and in close cooperation with the Messe München authorities. Planned as a hybrid event, PERFORMANCE DAYS offers the possibility to follow what is on offer digitally.

From December 1 to 2, 2021, the industry will meet up again live at the trade fair center in Munich. Trade visitors, industry insiders and experts can look forward to inter-personal exchanges, intensive networking, exciting fabric innovations and various other program highlights. The fair will go ahead in strict compliance with the current official hygiene regulations and in close cooperation with the Messe München authorities. Planned as a hybrid event, PERFORMANCE DAYS offers the possibility to follow what is on offer digitally.

Live in Munich: PERFORMANCE DAYS in Hall A6
In Hall A6 on the grounds of the New Trade Center in Munich, trade visitors can look forward to an extensive portfolio of exhibitors showcasing their latest functional textiles and fabric innovations for the upcoming winter season, winter 2023/24. Exhibitors who are unable to present their highlights on site can also be accessed via the PERFORMANCE DAYS LOOP digital platform throughout the course of the fair. As part of the newly developed “remote booths” concept, trade visitors will for the first time also find collections from exhibitors who cannot be in Munich in person for the trade show. Interactive exchanges via chat, call or video call is planned.

Two further PERFORMANCE DAYS fairs are planned as live events: The Functional Fabric Fair by PERFORMANCE DAYS in Portland, Oregon, USA on November 17-18, 2021 and Functional Textiles Shanghai by PERFORMANCE DAYS on December 6-7, 2021. Registration is open at www.functionalfabricfair.com/ and www.functionaltextilesshanghai.com/

PERFORMANCE FORUM together with USA Fair
As part of the PERFORMANCE FORUM, a select jury of experts assembles for two days prior to the fair to exchange views on the latest fabric innovations for the winter 23/24 season. In order to ensure a more global market overview, the PERFORMANCE FORUM will curate highlights for the first time in conjunction with the US fair in Portland. Consequently, the next fair in Munich will not only feature the latest products from exhibitors at the Munich fair, but also highlights from the fair in Portland. This year’s Focus Topic in cooperation with the Vaude Academy will engage with the topic “The Sustainable Future of Nylon” and a specific hand-chosen selection of fabric materials. Furthermore, as part of the winter fair, the “sustain & innovate” conference on sustainability, organized in close cooperation with SAZsport, will take an in-depth look at the topic comprising all its aspects along with speakers, webinars and discussion rounds. The program will be broadcast live from the fair and thus accessible for all who wish to follow it online in digital form.  

Eco Award and Performance Award for Innovative Winter Fabrics 23/24
This year, in addition to a PERFORMANCE AWARD, the jury also presented an ECO PERFORMANCE AWARD. An integral part of the winter edition of PERFORMANCE DAYS is the presentation of the fabric highlights and accessory trends in the respective categories for the Winter Season 2023/24 at the PERFORMANCE FORUM. The well-known segments will be joined for the first time this winter by the Shoes & Bags category, while the renowned Lifestyle Category will be continued under its new title, “Function Meets Fashion”. The high level of innovation and quality of many of the fabrics submitted this year are particularly striking.

“The fusion of the two PERFORMANCE FORUMs of our fairs in Munich and Portland has lead to a significant increase in quality and innovation. Thanks to the new partnership, not only were we able to get new, exciting manufacturers on board, but there was also a significant increase in participation in general“, says Marco Weichert, CEO of PERFORMANCE DAYS.

Natural fabrics such as organic cotton, wool or canvas remain in demand. These are joined by significantly more plant fibers such as hemp, coconut shell, bamboo or fibers derived from pineapple or banana leaves. The additional use of castor oil, zinc or ginger supports the antibacterial effect, ensures enhanced breathability, optimum temperature management and makes the fabric soft, light and kind to the skin. The topic of recycling presents itself in various new facets and features exciting trends. The portfolio ranges from the recycling of marine waste, such as old buoys, plastic waste or fishing nets, to the recycling of waste from the automotive and computer industries, such as old car tires or computer chips. Natural dyeing methods are also gaining increasing importance, as is the recycling of materials into the textile loop.

In the Marketplace, visitors have the opportunity to view over 13,000+ products from exhibitors, including the fabric highlights of the individual categories at the PERFORMANCE FORUM. In order to be able to present the fabrics to the digital visitors as realistically as possible in terms of feel, design and structure, the PERFORMANCE FORUM has been equipped with groundbreaking 3D technology, including innovative tools such as 3D images, video animations and U3M files for download.

In addition to the PERFORMANCE AWARD WINNER, which goes to drielease/Optimer, there is also an ECO PERFORMANCE AWARD WINNER, awarded to Long Advance.

Completely new look: With the innovative Dricomfort Geo, drirelease turns to a blend of 6 % Lycra, 44 % polyester and 50 % recycled polyester. The processing of the various fibers in the knitting process, in combination with the Dricomfort GEO finishing, makes the reversible interlock fabric unique.

Unique, new pattern and knit designs are possible thanks to a special jacquard knitting process used to process the recycled polyester yarn. The material impresses with its lightness and versatility. The GEO technology also ensures optimal body temperature management. The adaptable technology provides excellent thermal regulation features through efficient heat management and enhanced moisture transport to optimize comfort and performance. Moreover, GEO boasts UV protection up to 50+.

New recycling variant: Long Advance presents LNT-21191-Z4C, a post consumer nylon that opens up a new world to recycling. The fabric, which consists of 7 % elastane and 93% recycled polyamide via Mass Balance, introduces new facets to the topic of recycling. BASF is using tire waste from now on and processes them into a new fiber. fiber. Due to the recycling, the need for synthetic fabrics are reduced to replace petroleum-based plastics with plastics made from renewable raw materials.

Photo: pixabay
19.10.2021

Micromechanical Simulation of the Resilience of Nonwovens

Nonwovens are an important component of different products of several uses, e.g. transport of humidity in sanitary products, insulation materials or filters. Nonwovens are usually produced on large engineering facilities. For this, experimental studies of design with regard to the optimization of these nonwoven-structures prove to be very difficult.

Influence Design Parameters
There are so many parameters of design, as for example fibers, surface weight or type of nonwoven bonding and finishing that are affecting the properties of nonwovens. For the change of one single parameter, e.g. the material of fiber, it is necessary to adapt the whole process of fabrication from the spinning of the fibers via their stacking to the nonwoven hardening.

Nonwovens are an important component of different products of several uses, e.g. transport of humidity in sanitary products, insulation materials or filters. Nonwovens are usually produced on large engineering facilities. For this, experimental studies of design with regard to the optimization of these nonwoven-structures prove to be very difficult.

Influence Design Parameters
There are so many parameters of design, as for example fibers, surface weight or type of nonwoven bonding and finishing that are affecting the properties of nonwovens. For the change of one single parameter, e.g. the material of fiber, it is necessary to adapt the whole process of fabrication from the spinning of the fibers via their stacking to the nonwoven hardening.

Following the production of such a prototype a time consuming and cost-intensive characterization of the properties of nonwovens carried out experimentally has to be done.  Therefore, for this reason detailed studies considering several parameters of design are uneconomic.

Thus, micromechanical models of simulation are developed at Fraunhofer ITWM in cooperation with Procter & Gamble Service GmbH (P & G). By means of these models it is possible to forecast numerically the effective properties of nonwovens for diverse parameters of design. To virtually modify and optimize individual parameters in this connection it is only necessary to adapt the corresponding inputs of the model.

Fast Predictions Possible
In this case, the focus of the numerical predictions is primarily lying on the time-dependent behavior of the nonwovens.  The dynamic properties can be determined by means of numerical simulation of cyclic measurements. In doing so, a good correspondence of simulation and measurements is obtained.

Compared to experiments the required time of simulation for the behavior in case of low frequencies does not change. Therefore, we can obtain rapid forecasts for the long-term behavior (month till years) and the corresponding resilience of nonwovens using numerical models. A lot of alternatives can be simulated and studied within a few hours.

The fact that not only effective (macroscopic) properties of nonwovens can be computed, but also local physical values such as distribution of tension in binding agents and fibres is a further advantage of this micromechanical  approach. So, the simulation contributes to a better understanding of the properties of nonwovens.

Future designs deal with an extension of the models with regard to simulation of the productionv processes. By this, a fully digitalized layout design of nonwovens, from the manufacturing process till the optimization of functionality is possible.

Source:

Fraunhofer Institute for Industrial Mathematics ITWM

Photo: pixabay
21.09.2021

Virtual Quality Inspection Optimizes Production of Filter Nonwovens

Nonwoven production received more attention than ever before from the general public in Corona times, because the technical textile is crucial for infection protection. The ultra-fine nonwoven products are manufactured in so-called meltblown processes. A cross-departmental team at the Fraunhofer Institute for Industrial Mathematics ITWM in Kaiserslautern is optimizing the entire production chain in the »ProQuIV« project. Simulations help to guarantee the product quality of the filter material despite fluctuations in production.

Nonwoven production received more attention than ever before from the general public in Corona times, because the technical textile is crucial for infection protection. The ultra-fine nonwoven products are manufactured in so-called meltblown processes. A cross-departmental team at the Fraunhofer Institute for Industrial Mathematics ITWM in Kaiserslautern is optimizing the entire production chain in the »ProQuIV« project. Simulations help to guarantee the product quality of the filter material despite fluctuations in production.

The abbreviation »ProQuIV« stands for »Production and Quality Optimization of Nonwoven Infection Protection Clothing«. This is because bottlenecks in the production of these materials were particularly evident at the beginning of the Covid 19 crisis. For the meltblown nonwovens, this optimization of the product quality is also particularly difficult because the textiles react very sensitively to fluctuations in the manufacturing processes and material impurities.

Digital Twin Keeps an Eye on the Big Picture
»Meltblown« is the name of the industrial manufacturing process whose ultra-fine fiber nonwovens are responsible for providing the crucial filtering function in face masks. In this process, the molten polymer is forced through nozzles into a forward-flowing, high-speed stream. It is stretched and cooled in a highly turbulent air flow.

»The overall process of filter media production – from the polymer melt to the filter medium – presents a major challenge in simulation,« explains Dr. Konrad Steiner, head of the »Flow and Materials Simulation« department. »In the project, we kept the big picture in mind and developed a completely integrated evaluation chain as a digital twin. In doing so, we take several key components into account at once: We simulate the typical production processes of nonwovens, the formation of the fiber structures and then the material properties – here, in particular, the filter efficiency. This allows us to quantitatively evaluate the influences of the manufacturing process on the product properties.« In each of these individual areas, Fraunhofer ITWM and its experts are among the leading research groups internationally.

Homogeneity of the Material – Fewer Clouds in the Simulation Sky
In the meltblown process, a key factor is the behavior of the filaments in the turbulent, hot and fast air flow. The properties of the filaments are strongly influenced by this air flow. The quality of the filaments – and thus the quality of the nonwovens – is influenced by many factors. Dr. Dietmar Hietel, head of the »Transport Processes« department, knows what this means more precisely in practice. His team has been working at Fraunhofer ITWM for years on the simulation of various processes involving filaments, threads, and fibers. »The focus of the project is the so-called cloudiness, i.e. the non-uniformity of the fiber distributions in the nonwoven,« explains Hietel. »We are investigating the question: How homogeneous is the fabric? Because the quality of the products can be greatly improved if we increase the uniformity. Our simulations help figure out how to do that.«

Objective Evaluation of the Homogeneity of Nonwovens
The researchers also use appropriate image analysis techniques to quantify this cloudiness. The power spectrum plays a special role here. »The cloudiness index (CLI) describes homogeneity complementary to local basis weight and its variance,« describes Dr. Katja Schladitz. She brings her expertise in image processing to the project. »Our CLI ensures a robust assessment of the homogeneity and can thus be used for different material classes and imaging techniques to be used as an objective measure.« The frequencies that go into the CLI calculation can be chosen so that the CLI is meaningful for the particular application area.

Filtration: How Efficient Are the Filters?
For the upscaling to industrial processes such as mask production, the ITWM expertise in filters is also included in the project. The »Filtration and Separation« team led by Dr. Ralf Kirsch has been working for years on the mathematical modeling and simulation of various separation processes.

»What's special about this project is that we calculated the efficiency of the filters for fluctuations of varying degrees in the fiber volume fraction,« emphasizes Kirsch. »This allows us to specify up to what level of cloudiness the required filter efficiency can be achieved at all.« As a current example of this, the figure depicts in the graphic the efficiency of a filter material for N95 masks as a function of the inhomogeneity of the nonwoven.

ITMW Methods Support Across the Entire Process Chain
In »ProQuIV«, digital twins and calculations from Fraunhofer ITWM support a holistic view and better understanding of the processes. The production of technical textiles thus not only becomes more efficient, but the nonwovens can be developed virtually without having to realize this in advance in a test facility. In this way, production capacities can be increased while maintaining or even increase the quality. Together with long-term partners from industry, the research can be put into practice quickly and efficiently.

Simulations save textile companies experiments, allow new insights, enable systematic parameter variations and solve upscaling problems that can otherwise lead to bad investments during the transition from laboratory plant to industrial plant. However, virtual implementation of nonwoven production also opens up new opportunities for optimization at other levels. For example, acoustic insulating nonwovens or even hygiene nonwovens can also be optimized in terms of their product quality precisely with regard to the material properties to be achieved – while taking into account the process fluctuations that occur.

The project is part of the Fraunhofer-Gesellschaft's »Fraunhofer versus Corona« program and was completed in April 2021. The results will flow into several follow-up projects with the nonwovens industry.

Photo: pixabay
24.08.2021

Air, Water, Oil: What PLA bioplastic can filter well - and what not

Air filters have been discussed so often in recent days in the fight against the pandemic. With filter material made of nonwoven fabric, they block the way back into rooms for aerosols containing viruses. But how can these devices not only protect health, but also be operated with filter material that is as environmentally friendly as possible?

Air filters have been discussed so often in recent days in the fight against the pandemic. With filter material made of nonwoven fabric, they block the way back into rooms for aerosols containing viruses. But how can these devices not only protect health, but also be operated with filter material that is as environmentally friendly as possible?

Under clearly defined conditions, the bioplastic polylactide (PLA), also known as polylactic acid, is suited for this purpose. This can be deduced from results obtained by researchers from the Zuse community in the recently completed "BioFilter" research project. The key question for this and other potential applications of biofilters is: How do the special properties of PLA affect the filter performance and durability? After all, PLA can have practical disadvantages compared to its fossil-based competitors. Its material tends to be brittle and it doesn't particularly like high temperatures beyond 60 degrees Celsius. As a biogenic material, polylactic acid is also potentially more susceptible to abrasion and organic degradation processes. This can play an even greater role in the use of filters, e.g. in sewage treatment facilities, than in air filters. Industrial customers, however, naturally want a durable, reliable product.

From monofilament to nonwoven
Against this background, the researchers studied the PLA properties in order to test nonwovens for biofilters on this basis. The German Textile Research Center North-West (German Textile Research Center North-West - DTNW) and the Saxon Textile Research Institute (STFI), where the nonwovens were produced, were involved. Granules from various commercially available manufacturers were used. However, the research did not start with nonwovens, in which the fibers are deposited close together in different layers, but with so-called monofilaments, i.e. fibers made of PLA that are comparable to threads. DTNW and STFI initially carried out tests on these monofilaments, e.g. in a climate chamber for aging and durability.

As can be seen in the picture, the monofilaments became brittle after only two weeks at higher temperatures from 70 degrees Celsius, as the DTNW authors recently reported in the Journal Applied Polymer Materials. Under normalized conditions, however, the monofilaments showed no measurable reduction in stability even after almost three years, and the PLA nonwovens were in no way inferior to their fossil-based counterparts in terms of filter performance. "In my opinion, the focus for the use of PLA as a filter material will be on applications where relatively low temperatures are present, with which PLA copes very well," says DTNW scientist Christina Schippers.

Besides temperature and humidity consider other factors
For the researchers, however, the project, which was funded by the German Federal Ministry for Economic Affairs and Energy, was not just about the suitability of polylactide for air filters, but also for other applications, such as filtering water. In addition, the research revealed that when evaluating filter media made from bio-based and biodegradable nonwovens, it is important to consider other influencing factors, such as mechanical loads caused by air currents, in addition to temperature and humidity. "The innovative core of the project was to evaluate the possibilities and application limits of PLA nonwovens as filter media with sufficient mechanical properties and long-term stability," says project leader Dr. Larisa Tsarkova. Like her colleagues at STFI, DTNW is involved in the Zuse Community's Bioeconomy Cluster, in which researchers from nonprofit institutes cooperate under the guiding principle of "Researching with Nature." "For us, the bioeconomy is a top cross-industry topic that connects numerous institutes of the Zuse Community and is lived through collaborations such as with the 'Bio-Filter'," explains the future STFI managing director Dr. Heike Illing-Günther.

Cooperation in the Bioeconomy Cluster
With the results obtained from the "Bio-Filter" project, DTNW and STFI now want to continue working in order to be able to make derivations for clearly described areas of application for PLA nonwoven filters in the future. These possible fields of application extend far beyond room air filters and thus beyond the pandemic. For example, the water-repellent property of PLA is potentially interesting for filters in large-scale kitchens for water-oil filtration or also in the industry for engine oils.

The research is also so important, because PLA is already quite well established in individual consumer-related segments - keyword: carrier bags. Traditionally, lactic acid was used to preserve food, for example in sauerkraut. Today, PLA is obtained via a multi-stage synthesis from sugar, which ferments to lactic acid and polymerizes this to PLA, as Kunststoffe.de explains. PLA is one of the best-known bioplastics, but has not always been readily available due to strong demand in recent years. The Netherlands-based company Total Corbion has announced plans to start up a PLA plant with an annual capacity of 100,000 tons in Grandpuits, France, by 2024. It would be the largest plant of its kind in Europe, with Asia leading the way so far.

Source:

Deutsche Industrieforschungsgemeinschaft Konrad Zuse e.V.

Photo: pixabay
17.08.2021

Innovative wound care: Customized wound dressings made from tropoelastin

Customized, biomedically applicable materials based on tropoelastin are being developed in a joint project by Skinomics GmbH from Halle, Martin Luther University Halle-Wittenberg and the Fraunhofer Institute for Microstructure of Materials and Systems IMWS. The material combines biocompatibility, durability, biodegradability and favorable mechanical properties similar to those of skin. Preclinical tests have confirmed that it is suitable for use as a wound dressing material used in the treatment of chronic and complex wounds.

Customized, biomedically applicable materials based on tropoelastin are being developed in a joint project by Skinomics GmbH from Halle, Martin Luther University Halle-Wittenberg and the Fraunhofer Institute for Microstructure of Materials and Systems IMWS. The material combines biocompatibility, durability, biodegradability and favorable mechanical properties similar to those of skin. Preclinical tests have confirmed that it is suitable for use as a wound dressing material used in the treatment of chronic and complex wounds.

Particularly in the context of an aging society, special wound dressings are gaining in importance. The treatment of complex wound diseases such as venous ulcers, leg ulcers, or foot ulcers is challenging for medical staff, long-term and painful for those affected and cost-intensive for the healthcare system. Innovative protein-based materials are now being used for the treatment of such wounds. However, since they are made from animal tissues, they carry increased risks of infection or can result in undesirable immune reactions. In addition, there are increasing reservations in the population about medical products of animal origin.

In the joint research project, the project partners are currently developing customized, biomedically applicable materials based on human tropoelastin. This precursor protein is converted in the body to elastin, a vital and long-lived structural biopolymer that has exceptional mechanical properties and thus gives the skin and other organs the elasticity and resilience they need to function.

“Elastin is chemically and enzymatically extremely stable, biocompatible and does not produce immunological rejections when used as a biomaterial in humans. Therefore, we want to create new and innovative solutions for the treatment of complex wounds based on human tropoelastin,” says Dr. Christian Schmelzer, Head of the Department of Biological and Macromolecular Materials at Fraunhofer IMWS.

Individual wound treatment
As part of the research project led by Prof. Dr. Markus Pietzsch of Martin Luther University Halle-Wittenberg, the researchers succeeded in developing a biotechnological process for modifying tropoelastin. The modified tropoelastin is processed at Fraunhofer IMWS. Here, an electrospinning procedure is used to produce ultra-thin nanofibers with diameters of only a few hundred nanometers. The resulting nonwovens are further crosslinked to stabilize them for the respective application. The procedures developed have been optimized so that biomedical parameters such as pore size, stability and mechanical properties are variable and can thus be customized to meet the requirements of the respective wound treatment. The materials produced using the new procedures are being investigated by Skinomics GmbH in initial preclinical tests with regard to their skin compatibility and have already achieved promising results.

At the end of the project by the end of this year, applications for intellectual property rights are to be filed, building the basis for a subsequent product development phase for certified medical products.

Photo: pixabay
10.08.2021

Stand-up paddle board made from renewable lightweight mater

Stand-up paddling has become a popular sport. However, conventional surfboards are made of petroleum-based materials such as epoxy resin and polyurethane.

Researchers at the Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut, WKI, want to replace plastic boards with sustainable sports equipment: They are developing a stand-up paddle board that is made from one hundred percent renewable raw materials. The ecological lightweight material can be used in many ways, such as in the construction of buildings, cars and ships.

Stand-up paddling has become a popular sport. However, conventional surfboards are made of petroleum-based materials such as epoxy resin and polyurethane.

Researchers at the Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut, WKI, want to replace plastic boards with sustainable sports equipment: They are developing a stand-up paddle board that is made from one hundred percent renewable raw materials. The ecological lightweight material can be used in many ways, such as in the construction of buildings, cars and ships.

Stand-up paddling (SUP) is a sport that is close to nature, but the plastic boards are anything but environmentally friendly. As a rule, petroleum-based materials such as epoxy resin, polyester resin, polyurethane and expanded or extruded polystyrene are used in combination with fiberglass and carbon fiber fabrics to produce the sports equipment. In many parts of the world, these plastics are not recycled, let alone disposed of correctly. Large quantities of plastic end up in the sea and collect in huge ocean eddies. For Christoph Pöhler, a scientist at Fraunhofer WKI and an avid stand-up paddler, this prompted him to think about a sustainable alternative. In the ecoSUP project, he is driving the development of a stand-up paddle board that is made from 100 percent renewable raw materials and which is also particularly strong and durable. The project is funded by the German Federal Ministry of Education and Research (BMBF). The Fraunhofer Center for International Management and Knowledge Economy IMW is accompanying the research work, with TU Braunschweig acting as project partner.

Recovering balsa wood from rotor blades
“In standard boards, a polystyrene core, which we know as styrofoam, is reinforced with fiberglass and sealed with an epoxy resin. We, instead, use bio-based lightweight material,” says the civil engineer. Pöhler and his colleagues use recycled balsa wood for the core. This has a very low density, i.e. it is light yet mechanically stressable. Balsa wood grows mainly in Papua New Guinea and Ecuador, where it has been used in large quantities in wind turbines for many years – up to six cubic meters of the material can be found in a rotor blade. Many of the systems are currently being disconnected from the grid. In 2020 alone, 6000 were dismantled. A large proportion of this is burnt. It would make more sense to recover the material from the rotor blade and recycle it in accordance with the circular economy. “This was exactly our thinking. The valuable wood is too good to burn,” says Pöhler.

Since the entire sandwich material used in conventional boards is to be completely replaced, the shell of the ecological board is also made from one hundred percent bio-based polymer. It is reinforced with flax fibers grown in Europe, which are characterized by very good mechanical properties. To pull the shell over the balsa wood core, Pöhler and his team use the hand lay-up and vacuum infusion processes. Feasibility studies are still underway to determine the optimal method. The first demonstrator of the ecological board should be available by the end of 2022. “In the interests of environmental protection and resource conservation, we want to use natural fibers and bio-based polymers wherever it is technically possible. In many places, GFRP is used even though a bio-based counterpart could do the same,” Pöhler sums up.

Patented technology for the production of wood foam
But how is it possible to recover the balsa wood from the rotor blade — after all, it is firmly bonded to the glass-fiber reinforced plastic (GFRP) of the outer shell? First, the wood is separated from the composite material in an impact mill. The density differences can be used to split the mixed-material structures into their individual components using a wind sifter. The balsa wood fibers, which are available as chips and fragments, are then finely ground. “We need this very fine starting material to produce wood foam. Fraunhofer WKI has a patented technology for this,” explains the researcher. In this process, the wood particles are suspended to form a kind of cake batter and processed into a light yet firm wood foam that holds together thanks to the wood’s own binding forces. The addition of adhesive is not required. The density and strength of the foam can be adjusted. “This is important because the density should not be too high. Otherwise, the stand-up paddle board would be too heavy to transport.”

Initially, the researchers are focusing on stand-up paddle boards. However, the hybrid material is also suitable for all other boards, such as skateboards. The future range of applications is broad: For example, it could be used as a facade element in the thermal insulation of buildings. The technology can also be used in the construction of vehicles, ships and trains.

Photo: pixabay
20.07.2021

Closed-Loop Recycling Pilot Project for Single Use Face Masks

  • Circular economy for plastics: Fraunhofer, SABIC, and Procter & Gamble join forces

The Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE and its Institute for Environmental, Safety and Energy Technology UMSICHT have developed an advanced recycling process for used plastics. The pilot project with SABIC and Procter & Gamble serves to demonstrate the feasibility of closed-loop recycling for single-use facemasks.

The transformation from a linear to a circular plastics economy can only succeed with a multi-stakeholder approach. The Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE combines the competencies of six institutes of the Fraunhofer-Gesellschaft and cooperates closely with partners from industry. Together, we work on systemic, technical and social innovations and keep an eye on the entire life cycle of plastic products.  

  • Circular economy for plastics: Fraunhofer, SABIC, and Procter & Gamble join forces

The Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE and its Institute for Environmental, Safety and Energy Technology UMSICHT have developed an advanced recycling process for used plastics. The pilot project with SABIC and Procter & Gamble serves to demonstrate the feasibility of closed-loop recycling for single-use facemasks.

The transformation from a linear to a circular plastics economy can only succeed with a multi-stakeholder approach. The Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE combines the competencies of six institutes of the Fraunhofer-Gesellschaft and cooperates closely with partners from industry. Together, we work on systemic, technical and social innovations and keep an eye on the entire life cycle of plastic products.  

Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT is a pioneer in sustainable energy and raw materials management by supplying and transferring scientific results into companies, society and politics. Together with partners, the dedicated UMSICHT team researches and develops sustainable products, processes and services which inspire.

Fraunhofer Institute UMSICHT, SABIC and Procter & Gamble (P&G) are collaborating in an innovative circular economy pilot project which aimed to demonstrate the feasibility of closed-loop recycling of single-use facemasks.

Due to COVID-19, use of billions of disposable facemasks is raising environmental concerns especially when they are thoughtlessly discarded in public spaces, including - parks, open-air venues and beaches. Apart from the challenge of dealing with such huge volumes of essential personal healthcare items in a sustainable way, simply throwing the used masks away for disposal on landfill sites or in incineration plants represents a loss of valuable feedstock for new material.

“Recognizing the challenge, we set out to explore how used facemasks could potentially be returned into the value chain of new facemask production,” says Dr. Peter Dziezok, Director R&D Open Innovation at P&G. “But creating a true circular solution from both a sustainable and an economically feasible perspective takes partners. Therefore, we teamed up with Fraunhofer CCPE and Fraunhofer UMSICHT’s expert scientists and SABIC’s T&I specialists to investigate potential solutions.”

As part of the pilot, P&G collected used facemasks worn by employees or given to visitors at its manufacturing and research sites in Germany. Although those masks are always disposed of responsibly, there was no ideal route in place to recycle them efficiently. To help demonstrate a potential step change in this scenario, special collection bins were set up, and the collected used masks were sent to Fraunhofer for further processing in a dedicated research pyrolysis plant.

“A single-use medical product such as a face mask has high hygiene requirements, both in terms of disposal and production. Mechanical recycling, would have not done the job” explains Dr. Alexander Hofmann, Head of Department Recycling Management at Fraunhofer UMSICHT. “In our solution, therefore, the masks were first automatically shredded and then thermochemically converted to pyrolysis oil.

Pyrolysis breaks the plastic down into molecular fragments under pressure and heat, which will also destroy any residual pollutants or pathogens, such as the Coronavirus. In this way it is possible to produce feedstock for new plastics in virgin quality that can also meet the requirements for medical products” adds Hofmann, who is also Head of Research Department “Advanced Recycling” at Fraunhofer CCPE.

The pyrolysis oil was then sent to SABIC to be used as feedstock for the production of new PP resin. The resins were produced using the widely recognized principle of mass balance to combine the alternative feedstock with fossil-based feedstock in the production process. Mass balance is considered a crucial bridge between today’s linear economy and the more sustainable circular economy of the future.

“The high-quality circular PP polymer obtained in this pilot clearly demonstrates that closed-loop recycling is achievable through active collaboration of players from across the value chain,” emphasizes Mark Vester, Global Circular Economy Leader at SABIC. “The circular material is part of our TRUCIRCLE™ portfolio, aimed at preventing valuable used plastic from becoming waste and at mitigating the depletion of fossil resources.”

Finally, to close the loop, the PP polymer was supplied to P&G, where it was processed into non-woven fibers material. “This pilot project has helped us to assess if the close loop approach could work for hygienic and medical grade plastics.” says Hansjörg Reick, P&G Senior Director Open Innovation. “Of course, further work is needed but the results so far have been very encouraging”.

The entire closed loop pilot project from facemask collection to production was developed and implemented within only seven months. The transferability of advanced recycling to other feedstocks and chemical products is being further researched at Fraunhofer CCPE.

Photo: Pixabay
29.06.2021

A sustainable Circular Economy: Polypropylene Recycling from Carpet Waste

A significant part of carpet waste consists of petroleum-based polypropylene. As a non-recyclable product, disposing of it has previously meant incineration or landfill. However, a new solvent is now making it possible to recover virgin-standard polypropylene from carpet waste — with no perceptible reduction in quality. Developed by the Fraunhofer Institute for Building Physics IBP and its partners, the process also involves costs that are quite competitive. The development has taken place as part of the ISOPREP EU project.

The EU alone produces around 1.6 million tons of carpet waste every year. The majority of this ends up being sent to landfill or incinerated, as carpet is a composite material that is not suitable for purely mechanical recycling methods. With carpet waste analysed in the project consisting of around a quarter polypropylene, a petroleum-based plastic, the result is a great deal of resources going to waste.

A significant part of carpet waste consists of petroleum-based polypropylene. As a non-recyclable product, disposing of it has previously meant incineration or landfill. However, a new solvent is now making it possible to recover virgin-standard polypropylene from carpet waste — with no perceptible reduction in quality. Developed by the Fraunhofer Institute for Building Physics IBP and its partners, the process also involves costs that are quite competitive. The development has taken place as part of the ISOPREP EU project.

The EU alone produces around 1.6 million tons of carpet waste every year. The majority of this ends up being sent to landfill or incinerated, as carpet is a composite material that is not suitable for purely mechanical recycling methods. With carpet waste analysed in the project consisting of around a quarter polypropylene, a petroleum-based plastic, the result is a great deal of resources going to waste.

Carpet recycling now possible thanks to a new process
A team of researchers, including from Fraunhofer IBP, has now developed a new recycling process as part of an EU project named ISOPREP (see logo). “For the first time, this is making it possible to recover polypropylene from carpet waste — and the outcome is virgin-quality,” says Maike Illner, a researcher at Fraunhofer IBP. Not only does this allow the recovered polypropylene to be used in lower-quality products (in a process known as downcycling), but it also means that the quality is similar to that of newly manufactured polypropylene, making the material suitable for high-quality products too.

The process is based on a special solvent in the form of an ionic liquid. With the right components, it is able to selectively extract polypropylene from carpet fibers. Before the team of experts applies the solvent, the carpet waste is cleaned — something which involves removing as much of the backing as possible — and broken down. Once the pretreatment is complete, the waste is fed into a reactor in which it undergoes treatment using the solvent. The polypropylene is selectively dissolved in the solvent, a method that provides an effective way of removing dyes and other additives. The process is already being used on an extensive laboratory scale involving several liters of the solvent — and now, the research consortium has set its sights on scaling the process up to a pilot plant with the ability to recycle a ton of carpet waste per day. The pilot plant is set to commence operation by the end of the project in March 2022.

Costs and environmental impact
A recycling process can only be deployed on a large scale if its costs are competitive. For this application, this means retaining as much of the expensive ionic liquid as possible in the cycle. “If loss rates can be kept to one percent or less, there is potential for the costs of the process to rival those of producing new polypropylene,” explains Illner. “We know this thanks to a preliminary economic analysis that we conducted at Fraunhofer IBP.” The analysis involved the Fraunhofer researchers investigating the quantities of material and energy that would be required for the process and what kind of product would be output, and then calculating the associated costs. The team also considered how the costs would develop over the long term.

Fraunhofer IBP is focusing on the ecological aspects of carpet recycling. It is able to draw conclusions from factors including a lifecycle assessment, which sheds light on the emissions that are produced during the recycling process, for example. If the consortium is able to achieve its aim of keeping solvent loss rates to one percent or less in this case too, primary energy requirements and greenhouse gas emissions will remain on a similar scale to those involved in producing new polypropylene.

Potential for transfer to other polypropylene waste streams
While carpet waste is the focus of this particular project, the process that has been developed has potential applications far beyond it. The experts involved believe that it could be transferred to a whole host of waste flows that contain polypropylene and are unsuitable for conventional recycling methods. “One example is polypropylene products that contain dyes and additives,” says Illner. “Until now, it has been difficult to extract them from plastic, which means that the recycled polypropylene has only been suitable for use in lower-quality products.” The new process separates the polypropylene not only from other materials, but also from dyes and other additives, allowing it to be used in high-quality applications.

This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement no. 820787.

(c) Fraunhofer IAP
08.06.2021

Fraunhofer IAP: Recyclable, Fiber-reinforced Material made from Bio-based Polylactic Acid

"Packaging made from bio-based plastics has long been established. We are now supporting the further development of these materials for new areas of application. If in the future the market also offers plant-based materials for technically demanding tasks such as vehicle construction, the bioeconomy will take a decisive step forward," explained Uwe Feiler, Parliamentary State Secretary at the Federal Ministry of Food and Agriculture, in Potsdam. The occasion was the handover of a grant to the Fraunhofer Institute for Applied Polymer Research IAP. The Fraunhofer IAP wants to develop a composite material that consists entirely of bio-based polylactic acid (PLA) and is significantly easier to recycle than conventional fiber composites.

"Packaging made from bio-based plastics has long been established. We are now supporting the further development of these materials for new areas of application. If in the future the market also offers plant-based materials for technically demanding tasks such as vehicle construction, the bioeconomy will take a decisive step forward," explained Uwe Feiler, Parliamentary State Secretary at the Federal Ministry of Food and Agriculture, in Potsdam. The occasion was the handover of a grant to the Fraunhofer Institute for Applied Polymer Research IAP. The Fraunhofer IAP wants to develop a composite material that consists entirely of bio-based polylactic acid (PLA) and is significantly easier to recycle than conventional fiber composites.

The German Federal Ministry of Food and Agriculture (BMEL) is intensively promoting the development of biomaterials as part of its Renewable Resources funding program. More than 100 projects are currently underway, covering a wide range of topics: from plastics that are degradable in the sea to natural fiber-reinforced lightweight components for the automotive sector. The projects are supported by the Agency for Renewable Resources, the BMEL project management agency responsible for the Renewable Resources funding program.

Easier recycling of fiber-reinforced plastics
PLA is one of the particularly promising bio-based materials. The global market for this polymer is growing by around 10 percent a year. PLA is also used, among other things, as a matrix in fiber-reinforced plastics. In these mechanically resilient plastics, reinforcing fibers are embedded in a plastic matrix.

The Fraunhofer IAP project is now focusing on these reinforcing fibers: "We are further developing our PLA fibers in order to transfer them to industrial scale together with partners from industry. These fibers are ideally suited for reinforcing PLA plastics. The resulting self-reinforcing single-component composite promises great recycling benefits. Since the fiber and the matrix of PLA are chemically identical, complex separation steps are not necessary," explains Dr. André Lehmann, expert for fiber technology at Fraunhofer IAP.

Novel PLA fibers and films are more thermally stable
The challenge with this approach is that conventional PLA has a relatively low temperature resistance. Technical fibers can be produced most economically using the melt spinning process. The Fraunhofer IAP team is now using more thermally stable stereocomplex PLA (sc-PLA) for the fibers. The term stereocomplex refers to a special crystal structure that the PLA molecules can form. Sc-PLA fibers have a melting point that is 40 - 50 °C higher and can therefore withstand the incorporation process in a matrix made of conventional PLA. In the project, the researchers are developing and optimizing a melt spinning process for sc-PLA filament yarns. The partner in this work package is Trevira GmbH, a manufacturer of technical and textile fiber and filament yarn specialties that are in demand from automotive suppliers and contract furnishers, among others. Furthermore, the development of a manufacturing process for sc-PLA reinforced flat films is planned. The international adhesive tape manufacturer tesa SE is participating in this task, and will test the suitability of sc-PLA films as adhesive foils. In a third work package, the Fraunhofer IAP will finally process the filaments in a double pultrusion process to produce granules suitable for injection molding.

Bio-based solutions for the automotive and textile industries
The scientists led by Dr. André Lehmann are certain that the self-reinforced PLA material can conquer many new areas of application. The automotive and textile industries are already showing interest in bio-based materials that are also easier to recycle. In terms of price, PLA would already be competitive here, and now the material is also to be made technically fit for the new tasks.

Professor Alexander Böker, head of Fraunhofer IAP, says: "The steadily growing demand from industry for sustainable solutions underlines how important it is to develop biobased and at the same time high-performance materials. With our research, we are also actively driving the development of a sustainable and functioning circular economy and therefore very much welcome the support from the federal government."

Information on the project is available at fnr.de under the funding code 2220NR297X.

Photo: pixabay
18.05.2021

ECO PERFORMANCE AWARD and PERFORMANCE AWARD for innovative Summer Fabrics 2023

The digital Performance Days will kick off on May 17 through to May 21, providing online access to even more information, current trends, all the latest material innovations and enhanced tools while providing all within the industry the opportunity to interact with one another and with exhibitors.

The focus of the trend-setting PERFORMANCE FORUM in summer will highlight the winners of the two awards. This year, the jury will present a PERFORMANCE AWARD as well as an ECO PERFORMANCE AWARD.

The digital Performance Days will kick off on May 17 through to May 21, providing online access to even more information, current trends, all the latest material innovations and enhanced tools while providing all within the industry the opportunity to interact with one another and with exhibitors.

The focus of the trend-setting PERFORMANCE FORUM in summer will highlight the winners of the two awards. This year, the jury will present a PERFORMANCE AWARD as well as an ECO PERFORMANCE AWARD.

Function revisited: Outstanding fabric innovations for the Summer 2023 season
Plant-based fibers such as hemp, organic cotton, bamboo, wool, kapok or coconut shell remain in demand, with manufacturers increasingly refraining from the use of environmentally harmful chemicals, avoiding micro plastics, advocating natural dyeing processes and striving to either return fabrics back into the cycle, to recycle plastic and other waste or to produce fibers in such a way that they are biodegradable.

In the Marketplace, visitors have the opportunity to view more than 9.000 exhibitors’ products, including the fabric highlights of the individual PERFORMANCE FORUM categories. In order to present the fabrics to visitors in digital form as realistically as possible in terms of feel, design and structure, the PERFORMANCE FORUM has been equipped with state-of-the-art 3D technology, including innovative tools such as 3D images, video animations and U3M files for download.

Exceptional: PERFORMANCE AWARD & ECO PERFORMANCE AWARD Winners
For the Spring/Summer 2023 season, the jury also presented two awards for outstanding new developments – so in addition to the PERFORMANCE AWARD, presented to the winner Trenchant Textiles, there is also an ECO PERFORMANCE AWARD winner, in this year’s case, Utenos Trikotazas.

Sustainability at the highest level, wellbeing for body & soul:
With its fully biodegradable, brushed fleece material made of 11% hemp, 63% organic cotton and 26 % Tencel, Utenos Trikotazas fully convinced the jury and picked up the ECO PERFORMANCE AWARD for its sustainable comfort. The extremely comfy material is pleasant on the skin and impresses with an incredibly soft feel. Hemp is known for its natural anti-bacterial properties and natural UV protection. In combination with organic cotton and Tencel, this fabric guarantees ideal warmth and odour regulation.

Function redesigned, breaking down borders and creating space for the new: In keeping with the Focus Topic of the digital fair week “Still Physical – Your Success Story of 2020”, Trenchant Textiles combined functional features with fashionable design in its new fabric construction, fully deserving of the PERFORMANCE AWARD. The membrane on the outer side, SlickrB, is made of non-toxic, sustainable polypropylene membrane. By printing dot patterns on the surface of the membrane, the fabric provides greater abrasion resistance while maintaining its breathability properties. Absolutely revolutionary: patterns and colors can be altered individually according to preference. The inner liner made of N15DW (15D woven polyamide) also provides tear resistance as well as sufficient, adequate stretch.

(c) Porsche AG
04.05.2021

Fraunhofer: Lightweight and Ecology in Automotive Construction

  • The “Bioconcept-Car” moves ahead

In automobile racing, lightweight bodies made from plastic and carbon fibers have been standard for many years because they enable drivers to reach the finish line more quickly. In the future, lightweight-construction solutions could help reduce the energy consumption and emissions of everyday vehicles. The catch is that the production of carbon fibers is not only expensive but also consumes considerable amounts of energy and petroleum. In collaboration with Porsche Motorsport and Four Motors, researchers at the Fraunhofer WKI have succeeded in replacing the carbon fibers in a car door with natural fibers. This is already being installed in small series at Porsche. The project team is now taking the next step: Together with HOBUM Oleochemicals, they want to maximize the proportion of renewable raw materials in the door and other body parts - using bio-based plastics and paints.

  • The “Bioconcept-Car” moves ahead

In automobile racing, lightweight bodies made from plastic and carbon fibers have been standard for many years because they enable drivers to reach the finish line more quickly. In the future, lightweight-construction solutions could help reduce the energy consumption and emissions of everyday vehicles. The catch is that the production of carbon fibers is not only expensive but also consumes considerable amounts of energy and petroleum. In collaboration with Porsche Motorsport and Four Motors, researchers at the Fraunhofer WKI have succeeded in replacing the carbon fibers in a car door with natural fibers. This is already being installed in small series at Porsche. The project team is now taking the next step: Together with HOBUM Oleochemicals, they want to maximize the proportion of renewable raw materials in the door and other body parts - using bio-based plastics and paints.

Carbon fibers reinforce plastics and therefore provide lightweight components with the necessary stability. Mass-produced natural fibers are not only more cost-effective but can also be produced in a considerably more sustainable manner. For the “Bioconcept-Car” pilot vehicle, researchers at the Fraunhofer WKI have developed body parts with 100 percent natural fibers as reinforcing components.

“We utilize natural fibers, such as those made from hemp, flax or jute. Whilst natural fibers exhibit lower stiffnesses and strengths compared to carbon fibers, the values achieved are nonetheless sufficient for many applications,” explained Ole Hansen, Project Manager at the Fraunhofer WKI. Due to their naturally grown structure, natural fibers dampen sound and vibrations more effectively. Their lesser tendency to splinter can help to reduce the risk of injury in the event of an accident. Furthermore, they do not cause skin irritation during processing.

The bio-based composites were successfully tested by the Four Motors racing team in the “Bioconcept-Car” on the racetrack under extreme conditions. Porsche has actually been using natural fiber-reinforced plastics in a small series of the Cayman GT4 Clubsport since 2019. During production, the researchers at the Fraunhofer WKI also conducted an initial ecological assessment based on material and energy data. “We were able to determine that the utilized natural-fiber fabric has a better environmental profile in its production, including the upstream chains, than the fabric made from carbon. Thermal recycling after the end of its service life should also be possible without any problems,” confirmed Ole Hansen.

In the next project phase of the "Bioconcept-Car", the researchers at the Fraunhofer WKI, in collaboration with the cooperation partners HOBUM Oleochemicals GmbH, Porsche Motorsport and Four Motors, will develop a vehicle door with a biogenic content of 85 percent in the overall composite consisting of fibers and resin. They intend to achieve this by, amongst other things, utilizing bio-based resin-hardener blends as well as bio-based paint systems. The practicality of the door - and possibly additional components - will again be tested by Four Motors on the racetrack. If the researchers are successful, it may be possible to transfer the acquired knowledge into series production at Porsche.

The German Federal Ministry of Food and Agriculture (BMEL) is funding the “Bioconcept-Car” project via the project-management agency Fachagentur Nachwachsende Rohstoffe e. V. (FNR).

Background
Sustainability through the utilization of renewable raw materials has formed the focus at the Fraunhofer WKI for more than 70 years. The institute, with locations in Braunschweig, Hanover and Wolfsburg, specializes in process engineering, natural-fiber composites, surface technology, wood and emission protection, quality assurance of wood products, material and product testing, recycling procedures and the utilization of organic building materials and wood in construction. Virtually all the procedures and materials resulting from the research activities are applied industrially.

 

  • EU Project ALMA: Thinking Ahead to Electromobility

E-mobility and lightweight construction are two crucial building blocks of modern vehicle development to drive the energy transition. They are the focus of the ALMA project (Advanced Light Materials and Processes for the Eco-Design of Electric Vehicles). Nine European organizations are now working in the EU project to develop more energy-efficient and sustainable vehicles. Companies from research and industry are optimizing the efficiency and range of electric vehicles, among other things by reducing the weight of the overall vehicle. The Fraunhofer Institute for Industrial Mathematics ITWM is providing support with mathematical simulation expertise.

According to the low emissions mobility strategy, the European Union aims to have at least 30 million zero-emission vehicles on its roads by 2030. Measures to support jobs, growth, investment, and innovation are taken to tackle emissions from the transport sector. To make transport more climate-friendly, EU measures are being taken to promote jobs, investment and innovation. The European Commission's Horizon 2020 project ALMA represents one of these measures.

photo: pixabay
20.04.2021

Biomolecules from renewable Raw Materials for the Textile Industry

Water-repellent and more: coating textiles sustainably with chitosan

Textiles can be coated with the biopolymer chitosan and thus made water-repellent by binding hydrophobic molecules. The good thing is that this can also replace toxic and petroleum-based substances that are currently used for textile finishing. In the last few years Fraunhofer IGB and partners in the HydroFichi project have researched how this can be done: A technology has been developed to provide fibers with the desired properties using biotechnological processes and chitosan.

Water-repellent and more: coating textiles sustainably with chitosan

Textiles can be coated with the biopolymer chitosan and thus made water-repellent by binding hydrophobic molecules. The good thing is that this can also replace toxic and petroleum-based substances that are currently used for textile finishing. In the last few years Fraunhofer IGB and partners in the HydroFichi project have researched how this can be done: A technology has been developed to provide fibers with the desired properties using biotechnological processes and chitosan.

The manufacture of textiles is, even nowadays, still largely characterized by the use of chemicals: biotechnological processes, enzymes and renewable raw materials have so far played a subordinate role. For example, at present chiefly perfluorinated chemicals are used when finishing textiles to obtain water- and oil-repellent properties. These are harmful to health and also only degradable to a small degree, which is why they remain in the environment for so long.

The Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB has been researching sustainable biobased alternatives for some time. In the HydroFichi project – short for Hydrophobic Finishing with Chitosan – which was completed at the end of January 2021, researchers at the institute developed a way of producing chitosan from waste streams and using the biopolymer not only as a sizing agent in the processing of yarns, but also for the functionalization of textiles in the finishing process.

Chitosan from waste for environmental protection, medical purposes or textiles
Chitosan is a renewable raw material that is derived from chitin; after cellulose, it is the second most common naturally occurring biopolymer. Sources of the nitrogen-containing polysaccharide can be crab shells from fishing waste, insect skins and shells that result from the production of animal feed, or – as a vegan variant – the cell walls of mushrooms. The structure of the two molecules is very similar; the only difference is an acetyl group, which is removed when it is converted to chitosan. Chitin is insoluble in water and most organic solvents. Chitosan is also not readily soluble; however, the addition of mild acids makes the biopolymer water-soluble and it can therefore be used as a textile auxiliary.

In order to isolate chitosan from a particular waste stream, chitin must first be obtained from the starting materials by means of demineralization and deproteinization and then its derivative chitosan. The properties of chitosan can be individually adapted by choosing the appropriate conditions. The biomolecule produced in this way can be used directly in a wide variety of practical applications – for example as a flocculant in wastewater treatment or as a drug carrier in medicines.

There are also numerous conceivable uses for chitosan in the textile industry. In sizing, for example, the efficiency of the natural substance has proved convincing in pilot scale tests carried out by the German Institutes of Textile and Fiber Research Denkendorf. Here, the effectiveness was shown in the significantly lower roughness of the yarns after weaving textile fabrics. The values achieved with chitosan from insects were comparable to those from commercial crab shells. In the future, this fact will enable completely new possibilities of extraction in line with the bioeconomy.

As a renewable raw material, chitosan replaces fossil chemicals
“Our aim in the HydroFichi project was to provide the textile industry with a raw material for a wide variety of applications that can be obtained from renewable educts, at the same time avoiding chemicals that damage the environment and health,” explains project manager Dr. Achim Weber, deputy head of the innovation field Functional Surfaces and Materials at Fraunhofer IGB. “In addition to simple coating with chitosan, which protects the fibers, we were also able to use the substance as an anchor molecule to create cross-linking points for a wide variety of functional groups and thus to provide textiles with specific properties such as making them water-repellent. Chitosan can therefore function as a matrix material or template at the same time, and this can be done with a wide variety of fiber materials.”

The finishes were evaluated using standardized tests, but also with specially designed test stands and methods. For example, measurements on treated textiles showed contact angles of over 140°. This means that the fabrics are very water-repellent and confirms that the processing of the textiles has been successful. In a next step, the technology developed at the IGB is to be transferred from the laboratory scale to the much larger pilot scale in order to make the sustainable biomolecule ready for market use as quickly as possible, for example in the sports and outdoor sector.

For the first time biotechnological processes in textile finishing
In the project, the IGB scientists and four partners from the textile industry – the German Institutes of Textile and Fiber Research Denkendorf (DITF), J.G. Knopf's Sohn GmbH, Helmbrechts, and Textilchemie Dr. Petry, Reutlingen – were able for the first time to establish biotechnological processes in raw material extraction and finishing that have proven to be compatible with all textile processes. So far, this is a unique selling point in the finishing of textiles. “We have all recognized the great potential of chitosan for efficient hydrophobization and as a functional carrier. And, thanks to the good cooperation, we were able to successfully establish techniques for tailor-made functionalization of textiles,” adds Dr. Thomas Hahn, who conducts research in the innovation field of Industrial Biotechnology at the IGB. “In addition, other fields of application for the biopolymer are very promising. That is why we initiated the follow-up project ExpandChi immediately after HydroFichi, in which together with our partners techniques are to be developed to use biobased chitosan as a functional carrier to replace other synthetic polymers, for example for a special anti-wrinkle or flame-retardant coating. The textile industry is very interested in utilizing such a sustainable biomolecule as quickly as possible.“

The “HydroFichi” project was funded by the German Federal Ministry of Education and Research (BMBF) under promotional reference 031B0341A; the follow-up project “ExpandChi”, which began in February 2021, is funded under promotional reference 031B1047A.

Photo: pixabay
13.04.2021

KPMG Study in Cooperation with EHI: Fashion 2030

For years now, fashion retail has been able to show a moderate but steady growth in sales. However, the share of sales accounted for by online retail is becoming significantly stronger, and consequently that of stationary retail is becoming weaker. In just 10 years, online fashion retail will have a market share as high as that of local fashion stores, according to one of the findings of the study "Fashion 2030 - Seeing what fashion will be tomorrow" by KPMG in cooperation with EHI. "For retailers, the decline in sales in the stationary sector means that they have to reduce their stationary areas," says Marco Atzberger, Managing Director of EHI. A dilemma, because the majority of customers prefer to shop in their local fashion store, despite all the online alternatives.

For years now, fashion retail has been able to show a moderate but steady growth in sales. However, the share of sales accounted for by online retail is becoming significantly stronger, and consequently that of stationary retail is becoming weaker. In just 10 years, online fashion retail will have a market share as high as that of local fashion stores, according to one of the findings of the study "Fashion 2030 - Seeing what fashion will be tomorrow" by KPMG in cooperation with EHI. "For retailers, the decline in sales in the stationary sector means that they have to reduce their stationary areas," says Marco Atzberger, Managing Director of EHI. A dilemma, because the majority of customers prefer to shop in their local fashion store, despite all the online alternatives.

Textiles, media and electrical goods are currently the categories most frequently purchased online. Consumers believe that online shopping in these categories will also be particularly attractive in the future, although there is also considerable interest in online purchasing of furniture, drugstore and hardware store products.

With sales of 16.5 billion euros, online fashion retail already accounts for 25 percent of total fashion sales, which were around 66 billion euros in 2020. The experts at KPMG and EHI predict that this share will double in the next ten years. The forecasted annual sales of 79.2 billion euros in 2030 are to be divided equally between online and stationary stores. In order to position itself correctly here, the textile trade is facing strategic changes in terms of sustainability and digitization in addition to reductions in retail space. Concepts such as circular economy (recycling) or re-commerce (second-hand) are just as much part of the customer's demands as a smooth (channel-independent) shopping experience or a targeted customer approach.

Online information sources are becoming increasingly important for customers. However, browsing in stores continues to be the main source of information when shopping. One exception, however, is electrical goods - the independent opinion of reviews is the most important source of information here.

Reductions in retail space
As the market share of online fashion retail is becoming increasingly stronger than that of the overall fashion market, there will be a scissor effect for the stationary clothing retail – unless decisive parameters such as store rents change. Permanently reducing the share of fixed costs in the stationary sector can lead to a harmonization of both sales channels and prevent massive cannibalization effects, according to the authors of the study. The reduction in retail space will have the most severe impact on department stores and multi-story formats. Interviews with retail experts show that the retail expects a reduction in space of around 50 percent by 2030 and anticipates shrinkages of up to 70 percent at peak times. However, the current crisis also offers fashion retailers a greater choice of appealing rental spaces and therefore the opportunity to position themselves for the future by strategically streamlining their own store networks, adapting their space and differentiating their concepts to suit their target customers - in combination with smart digital solutions.

Multi-channel approaches are continuing to grow. On the one hand, stationary retailers will increasingly enter the online market; on the other hand, it can be observed that the opening of their own local stores by previously online-only retailers is on the rise.

Shopping experience
For a successful shopping experience, the city centers must be vibrant as well as attractive and should offer entertainment. All of this requires cooperation between all of the local players involved and collaboration with conceptually oriented urban development. To increase the individual customer loyalty and build real trust, fashion retailers must invest more in emotionality and use IT solutions. Whether in-store or online, customers want a targeted and smooth shopping experience, which for retailers means cleverly linking the systems. Availability and finding clothes in the right size also play a significant role in the stationary fashion retail. 42 percent of customers say that they would shop more often in stores, if these factors were guaranteed.

Already today, a concrete shortage of qualified personnel can be observed in certain regions and areas of responsibility. This is likely to become even more severe in the future. The retail’s own qualification measures will increase, and the industry's image will have to be improved.

Despite all technological support, the human being remains the most important factor in retailing - 88 percent agree on this. For 60 percent of consumers, encounters with people in a retail store are becoming increasingly important.

Sustainability
For almost half of the consumers surveyed (46 percent), sustainability is already a worthwhile concept today. This also includes re-commerce and second-hand. 34 percent of customers already buy used clothing, and another 28 percent can imagine doing so. In terms of occasions, a large proportion can also imagine renting clothing. The second-hand clothing trend has the potential to claim a market share of up to 20 percent in the next ten years and therefore to become a significant market segment in fashion retail.

In addition to the sustainability debate, the main factors driving this trend are the digitalization of the "second-hand store around the corner" and the large online fashion platforms that are discovering this market for themselves and making consumers increasingly aware of the models of temporary use.

Laws and regulations as well as increasing pressure from stakeholders have contributed to the growing importance of sustainability. However, the consumer goods sector attaches greater importance than other sectors to the aspect of being able to achieve a reputational gain through a sustainability strategy.

When it comes to the circular economy or rather the recycling of raw materials from used clothing, many companies are already involved in non-profit initiatives and research projects to develop the relevant technologies. In 2030, also due to legal initiatives, many clothing items will probably be made from recycled textile raw materials or fibers, which would substantially shorten the supply chains. "Automated fiber recovery, increasing unit labor costs in the Far East and fewer used textiles, this is the starting point for a perspective revival of textile production in countries close to Europe as well as in Europe itself," says Stephan Fetsch, Head of Retail EMA at KPMG. Although circular economy does not yet play a major role due to the current limited availability, it shows great potential: 28 percent have already purchased recycled textiles, and over 50 percent are positive about it.

Customers believe that retailers and manufacturers are responsible for sustainability. They, on the other hand, would like consumers to initiate the upswing of re-commerce by changing their behavior. New compliance guidelines will have an accelerating effect on the development of the re-commerce market.

Source:

(Studies; KPMG/EHI or rather KPMG):
- Fashion 2030: Sehen, was morgen Mode ist (Seeing what fashion will be tomorrow - only available in German)
- CONSUMER MARKETS: Trends in Handel 2020 (Trends in Retail 2020 - only available in German)

(c) JUMBO-Textil GmbH & Co. KG. CEO Andreas Kielholz (r.) and Business Development Manager Patrick Kielholz in the state-of-the-art production facility of JUMBO-Textil GmbH & Co. KG.
23.03.2021

JUMBO-Textil – Innovative Narrow Textiles redefined

A dynamic family business as a future-oriented solution partner for high-tech elastics
 
The various branches of the German textile and fashion industry generate a combined annual turnover of around € 32 billion. Of the approximately 1,400 companies, the vast majority are medium-sized. Special solutions made in Germany are in demand. The importance of technical textiles has been growing for years - as has their share of turnover. Textination spoke with Andreas and Patrick Kielholz about innovative product solutions, the importance of family businesses in today's world, traditions and innovations, challenges and the courage to fail, aircraft construction, the automotive industry, medical technology and diving suits.

A dynamic family business as a future-oriented solution partner for high-tech elastics
 
The various branches of the German textile and fashion industry generate a combined annual turnover of around € 32 billion. Of the approximately 1,400 companies, the vast majority are medium-sized. Special solutions made in Germany are in demand. The importance of technical textiles has been growing for years - as has their share of turnover. Textination spoke with Andreas and Patrick Kielholz about innovative product solutions, the importance of family businesses in today's world, traditions and innovations, challenges and the courage to fail, aircraft construction, the automotive industry, medical technology and diving suits.


The history of today's company "JUMBO-Textil GmbH & Co. KG" goes back to the last millennium. Founded in 1909 in Wuppertal, you have moved beyond the production of pure yard goods for the lingerie industry and are now a demanded competence partner for high-tech solutions for narrow textiles. Which industries do you focus on when developing your technical textiles?

Andreas Kielholz: JUMBO-Textil focuses on particular competences in the field of narrow textiles and not on specific industries. We produce narrow fabrics, narrow braids and knitted fabrics. In these three fields we bring out our special competences: Elastics, individual solutions and individually fabricated elements in combination with non-textile components. There is, of course, a long-standing intensive cooperation with customers from the automotive industry, for example. In this sense, JUMBO-Textil is also an "interior expert". However, this does not imply a focus on a specific industry. Quite the opposite: We are very broadly positioned in terms of industries. New sectors are opening up all the time; most recently, we supplied the toy industry with textiles specially developed for babies and toddlers. We also supplied the medical technology sector with narrow-textile solutions in form of skin-friendly elastics.


Speaking of Elastics - how did the specialization come about?

Patrick Kielholz: The specialization in elastic narrow textiles began as early as the 1920s. In our entrance area you can see one of the first specialized braiding machines that was purchased for this purpose. It is about 100 years old. A landmark decision: It made the step from apparel textiles to technical textiles, which - many years later – became essential for survival, if not possible, then at least considerably easier.
 

What characterizes elastics? Why is the property so important for technical textiles?

Andreas Kielholz: Technical textiles, as well known, are textiles that are developed for a specific technical function. They have to, if you like, be capable of doing something: securing a load, sealing an opening, protecting from heat ... Many of these industrial functions can only be accomplished with elastic textiles - from applications in aircraft construction to protective suits for divers and to textiles in medicine. It is often the specific, highly precisely defined strength-elongation-ratio that makes use in such extreme, highly demanding applications possible. Innovative fibers are manufactured and finished by us on highly modern, digitally controlled equipment. In this way, we achieve highest precision and safety in the elongation properties and and produce a textile high-tech product with high-performance fibers for extreme, often individually requested technical applications.
 

And what does your product portfolio look like for your customers as a whole?

Patrick Kielholz: The spectrum ranges from woven tapes and belts to braided tape, tubular braids and braided cords to nets - in all widths, made from numerous raw materials and with specific, even demanding properties, special features and fabrications. As a solution partner, we often guide our customers from the initial idea to the finished product.
The importance of narrow textiles as components is growing visibly. Since they are very light, very efficient and at the same time very quiet, they are being used more frequently as an alternative to components made of other materials. The demands placed on the textiles are growing with their tasks: Their specifications are becoming increasingly more precise, the tolerances increasingly tighter. In the automotive sector and in protective equipment, for example, fire safety requirements play an important role. Therefore, we only have success with narrow textiles that are permanently flame retardant. We are currently addressing many inquiries for fitness bands with highly precisely defined strength-elongation-ratios. We are also responding to the sustainability question with our portfolio: We are increasingly working on projects with recycled materials or recyclable products. This development is embedded in a comprehensive sustainability strategy, which we are addressing for the entire Group - also in connection with the new planning of our sister company vombaur GmbH & Co KG.

 
What has particularly influenced the company's development process of about 110 years? Were there any significant changes of direction or decisions?

Andreas Kielholz: In the 1970s, we broadened our range enormously by no longer producing technical narrow textiles only for the apparel industry, but for all industries. At the same time, we continued to specialize - in elastics. This is not a contradiction: We implement what we are particularly good at, however, for all industries.
In the recent history of the company, we made a strong push with our new building in 2016. Optimal production conditions were created. With a variety of new production plants, we are at the advanced level of technology and high production capacity. The environment also has an effect on our team. You can feel that people enjoy working here. At the beginning of 2019, we again set an important strategic course when we combined our competencies with vombaur GmbH & Co KG under the umbrella of Textation Group GmbH & Co. KG.
 

These two traditional companies for demanding high-tech narrow textiles will remain independent as companies and brands. Why did you decide to take this step, what is the market response and what can you recommend to other producers in terms of partnerships?

Andreas Kielholz: We have had very good experiences as a sister company: Knowledge transfer, trade show appearances, digitization workshops - the partnership is beneficial in many ways. But - unlike in real life - we were able to choose our sister. The partner companies have to be compatible. Sure, you have to pay attention to that. They should have things in common without doing exactly the same thing. Because if they are too similar, there is a risk of competition, even cannibalization of one of the brands.
Our construct is perceived by our market companions as a good and elegant solution. We could serve as a role model for one or the other. Perhaps we will also expand our circle in the next few year, which we are open to. And our move has also been well received by our customers. In addition to all the other positive effects, succession issues can also be solved more easily in the Group. We are thereby demonstrating future prospects and security.
 

In the medium-sized textile industry, companies were and still are shaped by people - founding personalities, owners, families who live and breathe textile tradition and innovation. In your opinion, what qualities do people need to have in order to be successful in our niche-oriented German industry?

Andreas Kielholz: Successful and formative are people with curiosity and drive. People who like to explore new territories, first in their thinking and then consistently in their implementation. You should be able to inspire others in these explorations. In addition, you should keep a close eye on the market and act accordingly, i.e., constantly questioning the status quo. Self-criticism is therefore also important: Is our path still the right one? Are we fulfilling our aspirations? To move forward as a company, you have to work tirelessly not only in, but also on the company.    

Patrick Kielholz: The important thing is to recognize change and see it as an opportunity, not as a threat. I fully agree with that. However, I would strongly question the idea that it is the one founder, the one owner, and therefore individual people who make a company successful. We live in a very complex and fast-paced world that cannot be overseen and comprehended by a single person. Don't get me wrong, great ideas can come from individuals and help a company succeed. But we can't rely on that. A company today must be managed in such a way that ideas are developed by divergent teams. An environment must be created that gives each person the opportunity to make a difference. A leader must therefore understand how to develop functioning teams.
 

Mr. Kielholz Snr., you are the managing partner of JUMBO-Textil GmbH & Co. KG and one of the managing directors of vombaur GmbH & Co KG. For about two years now, you have your son Patrick at your side as Business Development Manager of JUMBO-Textil. How did that come about? Did you encourage your son to follow in your footsteps?

Andreas Kielholz: Not explicitly. My sons - there's also Kevin, Patrick's brother - had a lot of freedom in their childhood and youth. It was always up to them how they wanted to live their lives. During their school education and their studies, I tried to support everything in a trusting manner. Education has a lot to do with leading by example. I always had a lot of joy in what I did, even if it wasn't always easy. They witnessed this joy every day - and so I may have implicitly encouraged them.  
The fact that Patrick is now part of the team, performing a very good job and already bears a lot of responsibility - of course I'm very happy about that. He is a good, trustworthy corrective for me, because he can do some things better than I can. There is a high chance that Kevin will also join us after completing his technical studies.
 

Mr. Kielholz Jr., you completed your studies with a master's thesis on family businesses. How do you assess the future of family businesses in a global textile industry in general? And where do you see JUMBO-Textil here?

Patrick Kielholz: Family businesses are usually employers that retain their employees for a long time - by providing a family-like working environment and a corporate culture that creates trust. These include values that are important to the younger generations. Status symbols are becoming less important. This can create a working environment in which highly innovative and flexible work can be done - if it is not prevented by an overly patriarchal structure. Family businesses can usually still work on this. We are trying to create such an innovation-friendly environment in the Textation Group with JUMBO-Textil and vombaur, and in this way to be the best solution partner for narrow textiles in the future.
 

You manufacture exclusively in Germany. Why? Have you never been tempted to benefit from lower wage levels in other countries?

Andreas Kielholz: We position ourselves as a highly qualified solutions partner and aim to provide our customers with excellent expertise in the field of narrow textiles. We can do this best in a country with very good education and training opportunities, which for us, is Germany as a location. Of course, we also work in close cooperation with partners in Eastern Europe.
 

Customized instead of solutions for major customers: The topic of individualization up to batch size 1 takes up a lot of space today. At the new site in Sprockhövel, you have invested significantly in innovative production technology. What is your opinion of individual product solutions, and in which areas of application have you already implemented them successfully?
     
Andreas Kielholz: We don't produce tailored suits; we produce goods by the meter. Batch size 1 - this has a special meaning for us: We develop in exchange with our customers for one project - a car seat in an off-road vehicle, a crab on a crane, an exoskeleton, a baby grab ring, whatever - so we develop a textile component for this one project. Individually specified for the particular concrete application and its requirements - for example, with regard to elongation, temperature resistance, skin-friendliness, etc. All the properties of the textile are configured individually. And then it is produced in the required quantity. This is definitely a customized solution. So; if the customer project is the tailored suit, then "individualization up to batch size 1" is our day-to-day business. Because that's what we do.
 

What does it take for such solutions?

Patrick Kielholz: A close exchange is important for such individual solutions, but also precise industry knowledge and knowledge of the applicable standards. We assist some customers all the way to product registration and advice on technical delivery conditions and documentation. For individual solutions, know-how and experience go far beyond technical textile expertise. The key basis here is to understand the customer's product, the manufacturing process and its purpose. We want to offer a complete solution that provides the greatest value for the respective client company. This starts with the selection of the raw material and ends with the use by the end consumers..


Breaking new ground means being willing to make decisions, overcoming fears - and therefore also having the courage to fail. Not each project can succeed. In retrospect, which entrepreneurial decision are you particularly glad you made?

Andreas Kielholz: The courageous decisions to reconstruct JUMBO-Textil, the corporate alliance with vombaur and the planned new building here are among them - and: having my son on the Executive Board. He brings a new, different perspective to the company, which enriches us enormously. In addition, I simply enjoy it. Who sees their grown-up children every day?

Patrick Kielholz: Yes, that took courage to fail. (laughs) Seriously, not every result of a decision can be dated as firmly as the commissioning of our new building. We are right in the middle of some processes. We started digitization early on, for example, and it will certainly never be completed. It has an infinite number of facets - from materials management to product development, from quality assurance to internal and external processes. It’s an unbelievably dynamic topic that is constantly evolving and opening up new potential for improvement. You need smart people who want to work as a team to advance the issues, otherwise you'll be lagging behind instead of moving forward. The same applies to sustainability - also a topic that must be viewed as an opportunity rather than an unwanted evil, as is so often the case.

Andreas Kielholz: That's the crux of the matter: As a company, it's important not to be driven by such major issues, but to actively drive development forward yourself.
 

How important is the concept of sustainability in corporate decision-making? Which certifications do you use and where do you go beyond legal requirements?

Andreas Kielholz: Our quality management system is certified according to IATF 16949:2016, an extension of ISO 9001 developed by the automotive industry. We have also been awarded Formula Q-Capability according to the VW Group's customer-specific certification with a score of 95%. In the area of environment and sustainability, we are certified to the environmental management standard ISO 14001:2015, and many of our products meet the OEKO-TEX® Product Class I certificate. In addition, we expressly stand by the claim to enforce human rights, labor, social and ecological standards in economic value-added processes, as formulated in the Code of Conduct of the German Textile and Fashion Industry.

Patrick Kielholz: A specific feature of family businesses becomes apparent here as well. The demands on the company and the values it stands for are much more personal demands. People must and want to be measured against these demands as individuals. They cannot and do not want to hide in the anonymity of stock corporations. A family business owner is also personally connected to the stakeholders of his company and therefore has a stronger interest in pursuing social, environmental and economic sustainability.


How do you judge the efforts of other countries, such as China, to increasingly address the issue of sustainability? Will this mean that an important unique selling point in the comparison between Europe and Asia will be lost in the future?

Andreas Kielholz: The topic of sustainability has not yet reached its peak, in other words: demand will continue to rise here as well. China is getting stronger, but Europe is also working on not losing its pioneering role. Increased demand and competition will benefit us all, especially agile companies.
 

The COVID19 pandemic has also left its mark on the textile and clothing industry. When you look back on just under a year of "state of emergency" - what positive experiences do you take with you, where do you see a need for improvement, for what support are you grateful and where did you feel left alone?

Andreas Kielholz: By facing up to the challenges early on and - thanks to our timely, multi-layered controlling - always knowing where we stand, we were able to adapt quickly. This is how we have largely come through the crisis well. The newly developed forms of work - mobile working and video conferencing, partly also in-house - will continue to exist. We have also made significant progress in digitalisation and new media.

     
If you had to introduce your company in 100 words to someone who does not know JUMBO-Textil: What would you say? What makes you unique?

Patrick Kielholz: JUMBO-Textil is a solution partner - our customers are always at the center of our thoughts and actions. For them and their projects, we develop and manufacture sophisticated technical narrow textiles: precise, custom-fit and Made in Germany.

Andreas Kielholz: I don't even need that many words: Highest quality standards, intensive customer relationship, reliability and unique Elastics expertise.

Patrick Kielholz: These were eight. (laughs)

The Interview was conducted by Ines Chucholowius,
Managing partner of Textination GmbH

 

(c) STF Swiss Textile & Fashion Institute
23.02.2021

Sustainability Management in Textiles - Interview with Sonja Amport, Director of STF

Contact restrictions, mandatory use of face masks, home office: The Coronavirus has turned our daily lives upside down and reduced public life almost to zero. The impact of the pandemic has even further in-creased the existing pressure for action to achieve the Sustainable Development Goals. And that is why, it is not surprising that the issues of sustainability, climate protection and digitization are gaining ground in the industry's and consumers' awareness. New management qualities are required.

Textination talked to Sonja Amport, Director of the STF Swiss Textile & Fashion Institute, about the new training course CAS Sustainability Management in Textiles. After career experiences in the industry and in associations, the business economist with a master's degree in International Management has been contributing her knowledge of textiles, education, business administration, as well as marketing and sales to STF with vigor and passion since 2015.

Contact restrictions, mandatory use of face masks, home office: The Coronavirus has turned our daily lives upside down and reduced public life almost to zero. The impact of the pandemic has even further in-creased the existing pressure for action to achieve the Sustainable Development Goals. And that is why, it is not surprising that the issues of sustainability, climate protection and digitization are gaining ground in the industry's and consumers' awareness. New management qualities are required.

Textination talked to Sonja Amport, Director of the STF Swiss Textile & Fashion Institute, about the new training course CAS Sustainability Management in Textiles. After career experiences in the industry and in associations, the business economist with a master's degree in International Management has been contributing her knowledge of textiles, education, business administration, as well as marketing and sales to STF with vigor and passion since 2015.

The history of the STF Swiss Textile & Fashion Institute began in 1881. In this year Pablo Picasso was born and Billy the Kid was shot. The Tales of Hoffmann by Jacques Offenbach was premiered and Thomas Alva Edison built the world's first electric power station. The Breuninger department store opened at Stuttgart's market square and Rudolph Karstadt's first store in Wismar.
What led to the foundation of STF during this period of time and what values do you still feel committed to today?

In 1881, the textile industry in Switzerland was thriving. Companies in the sector of spinning, weaving, finishing and others burgeoned. However, there was a shortage of trained specialists who could have operated or repaired the machines. This is why the companies teamed up and founded the STF Swiss Textile & Fashion Institute - a place for education and training of specialists for the Swiss textile and clothing industry. For this reason, the STF is still organized as a cooperative today. Therefore, we are still committed to the values of competence, customer orientation, innovation, inspiration and passion to this day.

If you had to introduce your educational institution in 100 words to someone who doesn't know the Schweizerische Textilfachschule: How does the school define itself today and on which fields of activity does it focus?
The STF Swiss Textile & Fashion Institute stands for sustainable educational competence covering the entire life cycle of a textile, fashion or lifestyle product. With the "STF-LAB", the STF positions itself as an educational service provider with three business fields. The core field is "Education", where the STF offers numerous training and further education courses, from basic education to bachelor's and master's degrees. In the "Incubator & Makerspace" (STF Studio), the main focus is on shared infrastructure, mutual inspiration and the thereby together achieved progress. In the third business field, "Think Tank & Consulting", the school acts as a think tank, where experts can be "hired" and part-time management is offered.

Keyword life-long education: What further education programs does the STF offer for the textile and clothing industry, even after a successful degree?
Which industry sectors and which countries are you focusing on?

Firstly, we offer a variety of informal modular courses for the textile and clothing industry as well as retail, in which one can achieve a good overview of a specific topic within 45 lessons. Such as: Welding & Bonding, Smart & Functional Textiles, Start-up in Fashion or the Steiger Stitch Module, where you learn to program your own knitting designs and then knit them on a "Shared Machine" at STF. We also offer two-week intensive summer courses each year, for example in Sustainable Fashion Design. In terms of formal education, I can recommend our master’s program in Product Management Fashion & Textile in German or our two CAS in Sustainability Management in Textiles. Once with face-to-face classes in German and once via e-learning in English. At the moment, we are focusing our programs on Germany, Austria and Switzerland (DACH region). Our internationalization strategy was abruptly stopped due to Covid-19. With our English master's programs, we were focusing particularly on the Indian and Chinese markets We are now strategically repositioning ourselves with English language courses and will start marketing again from 2022 onwards. The goal is to provide flexible, modular master's programs with a high e-learning component, so that costs remain moderate and travelling can be reduced.

Sustainability has changed from a buzzword to a matter of course: The latest OTTO Trend Study even says, that sustainable consumption has entered the mainstream society. What does this mean for the textile and clothing industry? Are the companies positioned in terms of personnel in such a way, that they have professionally incorporated this complex of topics into their service portfolio?
Swiss companies have recognized, that they only have a chance against foreign competitors, if they are capable of innovation, consistently operating in a niche and can stand out through sustainable production. Sustainability is therefore an absolutely central USP. With this in mind, many companies are dealing this and, of course, also send their employees to us for further training.

The STF offers - so far being the only one in the German-speaking area - an internationally recognized further education in the field of Sustainability Management in Textiles as a Certificate of Advanced Studies CAS. Which sub-areas from design, production, process optimization to marketing does the certificate cover?
The STF offers the internationally recognized University of Applied Sciences certificate in collaboration with SUPSI, the Scuola Universitaria Professionale della Svizzera Italiana in Ticino.

In the degree program, we look from a holistic perspective and at the entire value chain of a textile, i.e. from design to production and to marketing, global challenges, where sustainability acts as a multilateral solution. In addition, the normative and strategic management of sustainability, topics related to social responsibility as well as initiatives and standards for the textile industry are highlighted. An important element of the CAS are raw materials and products, i.e. not only sustainable fibers but also fabrics or the use of chemical agents. Last but not least, aspects around biodiversity, animal welfare, marketing, labeling as well as possible future scenarios and best practice examples are highlighted.

Who could be interested in the CAS Sustainability Management in Textiles and why? What impact can the certificate have on a career?
The CAS is attractive for managers who are generally concerned about the strategic orientation of a company, as well as for specialist employees in design, product development, purchasing, sales or quality management who are responsible for operationalizing the sustainability strategy. And of course we always welcome young designers with their own fashion labels willing to break new, sustainable grounds and to stand out from the rest. The push in professional life is strongly related to one's own personality. So far, however, all graduates have found attending the further education program to be extremely beneficial for their own career paths.

What about the formal aspects of the CAS? For example, are there selection criteria, by when do you have to register, what does the curriculum look like, and what are the fees for attendants?
We start the educational courses at the end of August each year. Early registration, preferably by mid-May, is recommended to secure a place. In the face-to-face course, 120 lessons take place in Zurich and Ticino, costs of CHF 5,900. -, including teaching materials and examination fees, can be expected. In the e-learning course, with a few days of on-site attendance, the content is taught synchronously by Microsoft Teams, usually by the same lecturers. Here, the fee is CHF 5,600.

These costs do not include personal expenses as well as travel and accommodation costs.

Those who are interested can find the facts & figures on our homepage (available in German only):
(www.stf.ch/kurse/cas or www.stf.ch/kurse/cas-online)

The COVID-19 pandemic has clearly shown us the limitations of mobility. How have you responded to this as an educational institution?
Physical limitations can easily be overcome with e-learning. One of the reasons why our classes continued regularly throughout the pandemic period. For the period after Covid-19, we are planning, in addition to face-to-face study modules, further online-only seminars, such as our CAS-Online. These will be offered increasingly in English as well. We are also currently testing possible forms of hybrid lessons. Meaning, while some are educated on-site in Zurich, people who have to travel a long way, such as those from Germany, Austria and Switzerland (DACH region), can attend the lessons virtually and live from a distance.

The past year has left its mark on the textile and apparel industry. When you look back on a year of "state of emergency" - what positive experiences do you take with you, where do you see a need for improvement?
It was definitely a year of a state of emergency! One positive aspect is, that we at STF were ready and able to teach online from day one of the lockdown. The learners, students and my team all showed the greatest understanding and flexibility. But as an institute in the textile, fashion and lifestyle sector, teaching also thrives on visual materials. Being able to feel and smell the yarns and fabrics, as well as to discuss the experiences in person, are important learning experiences. It is definitely a challenge to implement such key learning elements online. Overall, Covid-19 has catapulted us forward as an institution in regards to the topic of digitization by what feels like two years. However, I would be grateful if we could return to normality as soon as possible and to an everyday life with "less distance".

Breaking new ground means willingness to make decisions, overcoming fears - and thus courage to fail. Not every project can succeed. In retrospect, which decision that you made for the STF profile are you particularly pleased about?
I'm proud to say that most of the projects we tackle are successful. There is almost always a way. Sometimes, as you move forward, you just have to adjust the direction a bit to get where you want to go. A groundbreaking innovation was certainly the modularization of (almost) all degree programs. Students can therefore benefit from a wide range of choices and create their own curriculum.

A second decision I'm grateful for was that, as a small institute, we invested a lot in expanding our digital capabilities and infrastructure at a very early stage, which we are now benefiting from. With very well-trained lecturers and a learning platform, a VM platform and modern 3D software in various subject areas, we consider ourselves a pioneer in e-learning and digitalization across Europe. Capabilities, which also pay off in terms of sustainability.

The interview was conducted by Ines Chucholowius, Managing Director of Textination GmbH

 

Further information:

Photo: Pixabay
16.02.2021

Carbon with Multiple Lives: Bringing Innovations in Carbon Fiber Recycling to Market

When it comes to the future of motorized mobility, everyone talks about the power drive: How much e-car, how much combustion engine can the environment tolerate and how much do people need? At the same time, new powertrains place ineased demands not only on the engine, but also on its housing and the car body: Carbon fibers are often used for such demanding applications. Like the powertrain of the future, the materials on the vehicle should also be environmentally friendly. That is why recycling of carbon fibers is required. Institutes of the Zuse Community have developed solutions for this.

Carbon fibers consist almost completely of pure carbon. It is extracted from the plastic polyacrylonitrile at 1,300 degrees Celsius, using a lot of energy. The advantages of carbon fibers: They have almost no dead weight, are enormously break-resistant and sturdy. These properties are needed, for example, in the battery box of electric vehicles in structural components of a car body.

When it comes to the future of motorized mobility, everyone talks about the power drive: How much e-car, how much combustion engine can the environment tolerate and how much do people need? At the same time, new powertrains place ineased demands not only on the engine, but also on its housing and the car body: Carbon fibers are often used for such demanding applications. Like the powertrain of the future, the materials on the vehicle should also be environmentally friendly. That is why recycling of carbon fibers is required. Institutes of the Zuse Community have developed solutions for this.

Carbon fibers consist almost completely of pure carbon. It is extracted from the plastic polyacrylonitrile at 1,300 degrees Celsius, using a lot of energy. The advantages of carbon fibers: They have almost no dead weight, are enormously break-resistant and sturdy. These properties are needed, for example, in the battery box of electric vehicles in structural components of a car body.

The Saxon Textile Research Institute (STFI), for instance, is currently working with industrial partners on combining the static-mechanical strengths of carbon fibers with vibration damping properties to improve the housings of electric motors in cars. The project, which is funded by the German Federal Ministry for Economic Affairs and Energy, is aimed at developing hybrid nonwovens that contain other fibers, in addition to carbon fiber, as a reinforcement. "We want to combine the advantages of different fiber materials and thereby develop a product that is optimally tailored to the requirements", explains Marcel Hofmann, head of department of Textile Lightweight Construction at STFI.

The Chemnitz researchers would therefore complement previous nonwoven solutions. They look back on 15 years of working with recycled carbon fibers. The global annual demand for the high-value fibers has almost quadrupled in the past decade, according to the AVK Industry Association to around 142,000 t most recently. "Increasing demand has brought recycling more and more into focus", says Hofmann. According to him, carbon fiber waste is available for about one-tenth to one-fifth of the price of primary fibers, but they still need to be processed. The key issue for the research success of recycled fibers is competitive applications. STFI has found these not only in cars, but also in the sports and leisure sector as well as in medical technology, for example in components for computer tomography. "While metals or glass fibers cast shadows as potential competing products, carbon does not interfere with the image display and can fully exploit its advantages", explains Hofmann.
 
Using Paper Know-How
If recycled carbon fibers can pass through the product cycle again, this significantly improves their carbon footprint. At the same time it applies: The shorter the carbon fibers, the less attractive they are for further recycling. With this in mind, the Cetex Research Institute and the Papiertechnische Stiftung (PTS), both members of the Zuse Community, developed a new process as part of a research project that gives recycled carbon fibers, which previously seemed unsuitable, a second product life. "While classic textile processes use dry processing for the already very brittle recycled carbon fibers in fiber lengths of at least 80 mm, we dealt with a process from the paper industry that processes the materials wet. At the end of the process, in very simplified terms, we obtained a laminar mat made of recycled carbon fibers and chemical fibers", says Cetex project engineer Johannes Tietze, explaining the process by which even 40 mm short carbon fibers can be recycled into appealing intermediates.

The resulting product created in a hot pressing process serves as the base material for heavy-duty structural components. In addition, the mechanical properties of the semi-finished products were improved by combining them with continuous fiber-reinforced tapes. The researchers expect the recycled product to compete with glass-fiber-reinforced plastics, for example in applications in rail and vehicle construction. The results are now being incorporated into further research and development in
the cooperation network of Ressourcetex, a funded association with 18 partners from industry and science.

Successful Implementation in the Automotive Industry
Industrial solutions for the recycling of carbon fiber production waste are being developed at the Thuringian Institute of Textile and Plastics Research (TITK). Several of these developments were industrially implemented with partners at the company SGL Composites in Wackersdorf, Germany. The processing of the so-called dry waste, mainly from production, is carried out in a separate procedure. "Here, we add the opened fibers to various processes for nonwoven production", says the responsible head of the department at TITK, Dr. Renate Lützkendorf . In addition to developments for applications e.g. in the BMW i3 in the roof or rear seat shell, special nonwovens and processes for the production of Sheet Molding Compounds (SMC) were established at TITK. These are thermoset materials consisting of reaction resins and reinforcing fibers, which are used to press fiber-plastic composites. This was used, for example, in a component for the C-pillar of the BMW 7 Series. "In its projects, TITK is primarily focusing on the development of more efficient processes and combined procedures to give carbon fiber recycling materials better opportunities in lightweight construction applications, also in terms of costs", says Lützkendorf. The focus is currently on the use of CF recycled fibers in thermoplastic processes for sheet and profile extrusion. "The goal is to combine short- and continuous-fiber reinforcement in a single, high-performance process step."

1) Since February 1st, 2021, Dr.-Ing. Thomas Reussmann succeeds Dr.-Ing. Renate Lützkendorf, who retired 31 January.

Source:

Zuse Community

(c) PERFORMANCE DAYS functional fabric fair
29.12.2020

PERFORMANCE DAYS: Positive Feedback for Online Fair and sustain & innovate Conference

As a result of the Corona pandemic, the PERFORMANCE DAYS fair on December 9th - 10th and the accompanying sustain&innovate conference for sustainability on December 10 could only take place in digital form. Nevertheless: exhibitors, visitors and partners can look back on a successful event. The focus topic “Nothing to Waste – Closing the Loop“ relating to the issue of the textile circular economy in the course of the sustain&innovate conference also provided great discussion material while generating a positive response.

As a result of the Corona pandemic, the PERFORMANCE DAYS fair on December 9th - 10th and the accompanying sustain&innovate conference for sustainability on December 10 could only take place in digital form. Nevertheless: exhibitors, visitors and partners can look back on a successful event. The focus topic “Nothing to Waste – Closing the Loop“ relating to the issue of the textile circular economy in the course of the sustain&innovate conference also provided great discussion material while generating a positive response.

The PERFORMANCE DAYS team also expresses its satisfaction. Because despite the event being solely a digital event on the 9th and 10th of December 2020, an estimated 15,000 participants made extensive use of the comprehensive online offerings of the 191 digital exhibitors, among them drirelease/OPTIMER, Merryson, Stotz, HeiQ, Schoeller Textil, Long Advance, Dry-Tex, Utenos, Fidlock, Cifra, dekoGraphics and Jia Meir, during the week of the fair. The popular “Contact Supplier” function was supplemented with a new online tool that allows exhibitors to be contacted directly via chat, call or per video. A total of 3,250 fabric sample orders were placed with exhibitors. The variety on offer included fabric innovations for Autumn/Winter 2022/2023 within the top class PERFORMANCE FORUM and an extensive digital supporting program via live-stream with informative webinars, talks and rounds of discussions. Best of all: the resulting videos will be available on demand on the PERFORMANCE DAYS website free of charge.  
 
Finally standard: PERFORMANCE FORUM with sustainable materials
Innovative, sustainable and cutting-edge: the 240 fabrics plus accessory trends at this year’s PERFORMANCE FORUM impressed throughout with exciting environmentally conscious solutions. Natural fibers such as hemp, organic cotton, bamboo, wool or coconut shell remain in demand, while manufacturers are also increasingly refraining from the use of environmentally harmful chemicals, avoiding microplastics, advocating natural dyeing processes and either trying to return fabrics to the cycle, recycle plastic and other waste in order to produce fibres in such a way that they are biodegradable. This environmental awareness is also reflected in this year’s FOCUS TOPIC – so here the 24 best fabrics not only score in terms of sustainability, but also demonstrate that they are both functional and can be returned to the textile cycle, true to the motto “Nothing to Waste – Closing the Loop.   

In the Marketplace section, visitors have the opportunity to view more than 9,500 exhibitor products, including the fabric highlights of the individual categories of the PERFORMANCE FORUMS. In order to be able to digitally present the fabrics to visitors as realistically as possible in terms of feel, design and structure, the Forum has been equipped with innovative 3D technology, including innovative tools such as 3D images, video animations and U3M files for download.  

From fiber to fiber: successful sustain&innovate conference generates discussion  
Textile circular economy is considered part of the solution to the global waste problem, curbing the consumption of resources and reducing climate damaging greenhouse gases. But what exactly is the circular economy and how can it succeed? Most importantly, how far are fiber manufacturers in developing mono-component fabrics that can eventually be returned back into the textile cycle?    
The Focus Topic of this year’s sustainability conference, launched in cooperation with SPORTSFASHION by SAZ, offered a platform for discussion and strove to enlighten with evocative talks, discussion rounds and webinars. Christiane Dolva, Head of Sustainability at Fjällräven, got to the heart of the matter at the start of the expert talks on the second day of the fair, outlining how important emotional consistency is for the brand itself and ultimately also for the consumer – especially when it comes to textile recycling. Durability, good quality, in combination with timeless design are more important than ever today and in the future in terms of sustainable action. Added to this is the possibility of reviving products by means of a repair service. Equally exciting: the development of new technologies in terms of recycling. Erik Bang from the H&M Foundation provided a first glimpse of the new Greenmachine, which should make it possible to separate mixed fabrics such as cotton and polyester as early as 2021. Alternatively, old clothing is converted into new fibres thanks to companies such as WornAgain, Re:newcell, Spinnova or Infinited Fiber, which soon promises to be more than just a mere vision. For those who wish to gain insight into the supply chain of their purchased garment, the start-up know your stuff lets customers track the journey of the respective garment by simply scanning a QR code on the garment in a store or online.    
 
Free extensive retrospective
The next edition of PERFORMANCE DAYS is planned as a hybrid fair and will take place on May 19th and May 20th, 2021 in Munich as well as online. Until then, the PERFORMANCE DAYS platform will remain accessible, for instance with the Marketplace and further inspiring topics of (video) material stories to make online sourcing even easier. The talks from the first day of the fair and the conference will be accessible free of charge on the fair website.

The most importantt links:
Highlights of Expert Talks & Webinars
https://www.performancedays.com/digital-fair/expert-talk-webinar.html

Marketplace:
https://www.performancedays.com/marketplace.html

3D-Forum:
https://www.performancedays.com/digital-fair/forum-highlights/3d-forum.html

PERFORMANCE COLORS by Nora Kühner
https://www.performancedays.com/digital-fair/color-trends.html

More information:
Performance Days
Source:

PERFORMANCE DAYS functional fabric fair