From the Sector

Messe Frankfurt India has announced that the ninth edition of Techtextil India will be held from 12 – 14 September 2023, for the first time at JIO World Convention Centre (JWCC), Mumbai. On the side-lines of the three-day fair, the organisers are planning a series of live sessions to spark debates on important industry topics and high-growth application areas.
 
As the leading business event for the Indian technical textile industry, Techtextil India, aims to connect international and domestic players with buyers from 12+ segments under diverse application areas and create a one-stop sourcing platform to highlight latest product innovations in technical textiles.
 
Marking a spectacular comeback after the lockdown, the eighth edition of Techtextil India in  2021 stood out to be a ground-breaking business platform for the technical textile sector with live demonstrations from over 150 companies’ brands and an exclusive German pavilion. The high-profile event, over the course of three days attracted 4,087 trade visitors from 25 states and 194 cities. Mr Pramod Khosla, Director, Khosla Profil Pvt Ltd, shared: “Despite the unprecedented situation created by pandemic, Techtextil India 2021 saw a tremendous response from visitors. This goes to show the immense interest and trust that industries and people have in the technical textiles sector as well as in Techtextil India.”
 
For the upcoming ninth edition, leading Indian players such as Alok Masterbatches, Khosla Profil, Park Nonwoven, Sarex Chemicals, Suntech Geo, Weavetech have already confirmed their participation and will be showcasing innovations in high-growth application areas of Geotech, Packtech, Agrotech & Indutech with a focus on products such as specialty fibres, filtration fabrics, functional textiles & advance technology.
 
While Mobiltech, Indutech, Meditech, Packtech and Sportech constitute a major share value in the global market for technical textiles, the segments likely to grow at the fastest rates (at rates faster than a CAGR of 10%) in the Indian market are Oekotech, Protech, Mobiltech, Geotech, Indutech, Agrotech, Buildtech and Packtech. The government’s target to accelerate technical textile sector growth from 8% to 15-20% range in the next five years and transform the nation into a major player in innovations, technology development, applications in key areas (agriculture, roads and railways, water resources, hygiene and healthcare, personal protection) is giving strong impetus to industry players.

With an aim to place India as one of the leaders in the global technical textile market and enhance its adoption and penetration domestically, the Indian government has earmarked INR 1000 crore (USD 130.7 million) dedicated only for R&D of the Technical Textiles sector, while the Union Budget 2022-23 further allocates INR 100 crore (USD 13.07 million) for the National Technical Textiles Mission. The centre is making strong efforts to encourage the use and adoption of technical textiles and has mandated the use of 92 items by government organisations covering agriculture, horticulture, highways, railways, water resources, and medical applications. The organisers are in talks with international technology players targeting these application areas to present their innovations at the three-day fair.

Prof. Manfred Renner and Prof. Christian Doetsch will take joint leadership of the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT from August 2022. As renowned scientists, they have most recently shaped the direction of the institute as heads of the Products division and Energy division respectively, and will now follow in the footsteps of Prof. Eckhard Weidner, who has entered retirement.

This is the first time in its history that Fraunhofer UMSICHT is led by two directors. Both institute directors began their professional careers at the institute and from August they will have a joint hand in its future.

Prof. Manfred Renner holds a doctorate in mechanical engineering, specializing in process engineering and business development. Since 2006, he has held various roles at Fraunhofer UMSICHT, most recently heading up the Products division and overseeing its 126 employees and its budget of 14.8 million euros. He has set international standards through his award-winning research into a free of water tanning leather tanning process that uses compressed carbon dioxide. With the development of innovative aerogel-based insulation materials for building facades, he has made a significant contribution to environmentally friendly, circular applications in the construction industry and initiated a number of industrial projects. One of the notable technological breakthroughs made by his team was the development of a new type of fire-resistant glass, which can withstand even the most extreme heat. This won his development team the Joseph von Fraunhofer Prize in October 2020.

Alongside becoming institute director, Prof. Renner will also take over the leadership of the Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE in August 2022. In this role, he will represent the Fraunhofer-Gesellschaft on a national and international level with regard to the transformation of industry and society to a circular economy. In addition, he will start his professorship in Responsible Process Engineering at the Faculty of Mechanical Engineering of the Ruhr-Universität Bochum. Over the course of his professorship, he will shape the systemic development of the circular economy at a corporate, regional and European level.

Prof. Christian Doetsch has worked in energy research for more than 25 years, spending most of this time at Fraunhofer UMSICHT. As head of the Energy division, he managed a team of around 145 employees and was responsible for a budget of approximately 10.4 million euros. His technological focal points are energy storage, Power-to-X technologies including hydrogen electrolysis and chemical conversion, catalysts, and energy system modeling and optimization. His overarching aim is the integration of renewable energies into a cross-sectoral, resilient energy system.

In 2015, Doetsch co-founded the award-winning start-up Volterion GmbH & Co. KG, which develops redox flow batteries. He attained high visibility on a global scale by redesigning stacks, one of the main components of redox flow batteries, an achievement for which he, his team and Volterion representatives were awarded the Joseph von Fraunhofer Prize in May 2021. The energy expert also acts as deputy spokesperson for the Fraunhofer Energy Alliance and task manager for the energy storage group at the International Energy Agency (IEA). He also co-founded the “Open District Hub e. V.,” an association that promotes the energy transition in the sector by means of energy systems integration.

Since January 2020, he has been Professor of Cross Energy Systems at the Faculty of Mechanical Engineering of the Ruhr-Universität Bochum. In this role, he conducts research into ecological evaluation and resilience of cross-sectoral energy systems.

The company’s principle theme at Techtextil was Sustainability, since FET extrusion systems are ideally suited for both process and end-product development of sustainable materials. These systems are designed to be material efficient, can be bespoke designed and offer both flexibility and a high level of processing capability. They are supplied as self-contained units for ease of installation in a laboratory or small scale process evaluation environment.

FET’s enhanced Fibre Development Centre enables clients to develop and trial their own sustainable fibres and FET has now successfully processed almost 30 different polymer types in multifilament, monofilament and nonwoven formats

The innovative stand at Techtextil was specifically designed to highlight FET’s total commitment to all aspects of sustainability. It utilised as many sustainable components as possible and met with much comment and approval from visitors.

Fibre Extrusion Technology Limited (FET) of Leeds, England enjoyed another successful Techtextil in Frankfurt, with high quality enquiries from technical companies and organisations worldwide, but in particular from customers based in Europe.

The 50th INNATEX fair opens its gates to a Green Fashion trade audience from 29 to 31 July 2022 in Hofheim-Wallau, near Frankfurt. At this anniversary fair, over 200 labels will be exhibiting, a wide range of experts and organisations will be gathering, and elaborate features and facilities are planned for the Rhein-Main exhibition centre.

According to INNATEX project manager Alexander Hitzel, one highlight is the Community Area, which brings together a range of experts. In short lounge talks, they reveal insights into what they are currently working on and a dialogue format encourages personal discussion. Mirjam Smend, whom we know well from Greenstyle Munich, introduces her recently launched sustainability magazine, Pureviu, and facilitates the morning talks.

Alongside standard bodies such as IVN and GOTS, which have taken part in INNATEX for many years, younger projects such as Fairmodel and the digital platform Retraced will be part of this special area. Fairtrade Germany, Femnet and the VDMD are to be found there too. Almost all of them are joining in with the Ask Me Anything dialouge format. Interested attendees can pre-book a slot of up to ten minutes for a personal discussion with the expert of their choice.

The supportive activities that had to be suspended during the pandemic are enjoying a comeback at this year’s summer fair: five newcomers to INNATEX designated DesignDiscoveries will be presenting their projects in another special area. Vegtus, from Barcelona, produces sneakers and other products from cactus leather. Natural textiles such as organic cotton are used by Lounge Cherie, a yoga fashion label.

Products for kids through to seniors, classics and streetwear, footwear and accessories
Nordlicht similarly relies on recyclable, renewable natural fibres for its outerwear, bags and accessories. The field of circular fashion is also served by the remaining two Design Discoveries. Both Nature is Future, with its handmade sneakers, and Freibeutler, with its functional rucksacks, make extensive use of recycled materials, while also paying due attention to broader sustainability aspects.

Regular INNATEX exhibitors include Lana, Chapati and Didymos, all of whom are also celebrating anniversaries. Labels such as Anokho with their colourful accessories in jacquard fabrics and Danish label Angel Circle with its plus-size fashion are exhibiting for the first time.

New ideas were exchanged, brainstormed, and discussed freely at members’ booths at the Swiss Textile Machinery Pavilion during the recent Techtextil in Frankfurt. “Customers and researchers met Swiss textile machinery companies to explore the possibility of the not-yet-invented. “We regard our Pavilion as the place where future innovations catch a spark,” says Cornelia Buchwalder, Secretary General of the Swiss Textile Machinery Association. Further developments in the field of hybrid yarns were a hot topic. One example of this involves producing a yarn which has all the typical characteristics and advantages of carbon – but which also prioritizes careful use of resources, combining carbon fibres with thermoplastics.

Technical textiles cover a vast range of applications, and it’s still growing thanks to intensive research by specialist institutes and universities. Many members of the Swiss Textile Machinery Association maintain long-standing partnership with such bodies. Innovations are often joint efforts.

Feel-good technical fabrics
Some technical textiles feel like a second skin. A well-known example is activewear from the ‘sport tech’ field. Activewear includes breathable clothing, usually consisting of a three-layer-laminate: an inner lining, a breathable membrane in the center, and an outer fabric. The challenge is to bond the individual layers without losing breathability or softness, while meeting technical requirements such as resistance to a number of wash cycles.

Bonding solutions meeting top quality requirements, as well as ambitious standards for environmental protection and sustainability, were reinvented by the Cavitec brand from the Santex Rimar Group. This company’s hotmelt technology uses one-component polymers applied to textiles in a hot, molten state. Bonding based on hotmelts is both water- and solvent-free. Drying and exhaust air cleaning are not necessary, which is an ecological advantage. Energy consumption is also significantly lower. Cavitec hotmelt technology is also developed for laminated medical protection fabrics which are safe, high-quality and sustainable. These fabrics can be washed, sterilized, and used again.   

A second skin with added value is the result of Jakob Müller Group’s cooperation with an institute for an established outdoor fashion brand. They have devised a heating mat applied as an inner jacket. Outdoor gear with a heated inlay offers the wearer a comfortable feeling even in a cold climate. The heating mat is particularly light, breathable, flexible and adjustable to three temperature levels.

Fabrics with these advantages are now possible thanks to multi direct weaving (MDW) technology from the Jakob Müller Group. A lacquer-insulated heating strand is inserted into the base textile as a ‘meander’ using MDW technology. The technology is offered with both label weaving machines and the latest generation of ribbon weaving machines. The textile pocket calculator is another MDW based future-oriented application developed in cooperation with a textile research institute.

Safety and health
Life-saving reliability is a must for vehicle airbags. They have to fulfil high security aspects, and must remain inflated for several seconds when an accident occurs. Airbags made of flat-woven fabric – cut and seamed – can show weakness at seams during the inflation phase. Latest Jacquard technology by Stäubli enables one-piece-woven (OPW) airbags to be produced, creating shape and structure in a single process. The final product is an airbag consisting of a sealed cushion with woven seams. OPW airbag weaving reduces the number of production steps, and increases the security aspects.
Another big advantage of Stäubli’s new weaving technology is the flexibility in formats required in today’s mid- and upper-range cars, where lateral protection (in the seat or in the roof over the door) has become standard and is designed in line with the car shape. Safe airbags are woven on modern high-speed weaving machines. The warp material, the variety of fabric patterns, and the importance of precisely shaped airbags require the use of a robust and reliable Jacquard machine.

A revolution for orthopaedic patients is a knitting machine from Steiger Participations, which uses compressive yarns developed to meet the needs of the specific health market. This machine model was exclusively designed for production with inlaid elastic yarns and offers optimum performance with guaranteed final product quality.

In the orthopaedic field, many Steiger flat knitting machines have already been operating as automatic, custom-made production systems. For example, the dimensions of an injured limb are taken by the doctor and fed into a web-based application. The doctor selects the compression class in the various sections of the item and a data file created by the software automatically applies a preconfigured program. With no human intervention required, the program is generated and produced on the machine, precisely matching the patient’s dimensions. Each product is different, and generally available within 48 hours.

The electrolyser producer Enapter has set itself the goal of developing its entire production process to run without negative impacts on the environment. As an important step on this journey, it is building the Enapter Campus production facility, which will be powered entirely from renewable energy produced on-site and in the neighbouring Bioenergiepark. The site in in Saerbeck, North Rhine-Westphalia combines electrolyser production, an R&D building, administration and office space, as well as a cantine over 82,000 square metres. Now the company wants to investigate what other measures can be implemented to achieve its “Life Cycle Impact Zero” aspirations – together with researchers from Fraunhofer UMSICHT, the Wuppertal Institute and the Institute of Sustainable Nutrition (iSuN) of FH Münster.

With the Life Cycle Impact Zero project, started on April 15, 2022, the parties want to develop and apply an especially comprehensive and holistic approach to environmental assessment. This includes chemical manufacturing and electrolyser production, as well as matters like the use of energy and water resources, the generation of waste or the human factor in general. This is intended to cover all interactions between business and people. That includes, in particular, Enapter’s employees, but also people in upstream and downstream value chains, users of the technology or residents close to the production site. A concept for sustainable employee catering is also being developed.

The basis for all environmental assessment that will be carried out is ISO 14040. The recognised international standard divides the research into four phases: Aim and scope of the study, inventory analaysis, impact assessment, as well as interpretation. Sensitivity analyses and scenario techniques are also used as further methods.

On the basis of these analyses, the 18-month project should derive concrete measures to avoid negative environmental impacts completely, if possible, for example in production, employee mobility or in energy supply. Furthermore, it will examine whether these measures are transferable to Enapter’s other locations – such as in Italy. Following on from the project, the steps defined should be implemented by Enapter in the next phase. In the subsequent Phase 3, a renewed analysis is planned. This will determine if the technological innovations achieved by then in the production and use of Enapter’s electrolysers can enable additional ecological improvements.

The Life Cycle Impact Zero project is supported by the State of NRW.

Archroma launched Perapret® AIR liq, a new light-activated air purification technology for all kinds of fabrics. The new innovation was presented at the Techtextil last month.

The mineral-based Perapret® AIR liq eliminates air pollutants and airborne smells by imitating the natural process of photocatalysis under normal day and artificial light sources.

The chemistry usually used in such applications is nano-sized TiO2 (dioxide titanium), which attack every organic matter, including the textile fiber, and not only pollutants.

Perapret® AIR liq is produced using a patented Core Shell technology that partially surrounds the TiO2 molecules, solving the issue of fiber damage, and at the same time still allowing the photocatalytic process to work efficiently.

Therefore, the innovative Core Shell technology behind Perapret® AIR liq makes it possible to use the capabilities of nano-sized TiO2 also on organic based substances such as cotton, polyester, polyamide, viscose and any additional fiber and its blends.

In addition, the treatment is highly durable, as the product doesn’t self-consume and retains its performance over time.

Perapret® AIR liq is ideally suited for indoor applications, such as curtains, textile wall coverings, as well as cars and other automotive interiors, allowing to reduce air pollutants and airborne smells and thus improving overall air quality*.

The technology is at the core of CLEAN AIR, a new system that combines Perapret® AIR liq with other recent innovations such as Smartrepel® Hydro TS liq for PFC-free** durable water repellence, and Sanitized® T27-22 liq antimicrobial agent.

Weg von fossilen Rohstoffen und deren Knappheit – hin zu bisher ungenutzten Rohstoffen aus Pflanzen und Pilzen. Um diesen Wandel zu nachwachsenden Roststoffen zu unterstützen, hat das Fraunhofer UMSICHT im Projekt »FungiFacturing« Pilzwerkstoffe untersucht, die aus Reststoffen wie Stroh oder Holzspäne bestehen. Zum Abschluss des Vorhabens zeigen die Forschenden, dass sie neben einem Schallabsorber auf Pilzbasis auch weitere biobasierte Lösungen für die Bauindustrie entwickelt haben.

Ein Werkstoff aus pflanzlichen Rohstoffen und Pilzmyzel als Double-Porosity-Schallabsorber - so lautete das Ziel des Projektes FungiFacturing von August 2019 bis Juli 2021. »Pilzwerkstoffe stellen eine biobasierte Alternative zu konventionellen Materialien wie Polyesterschäumen oder Verbundstoffen auf Mineralbasis dar«, erklärt Julia Krayer, Biodesignerin am Fraunhofer UMSICHT. »Der Schallabsorber besteht aus Pilzen und pflanzlichen Reststoffen. Sägespäne, Treber aus der Bierproduktion oder Stroh nutzen wir als Nährboden, um die Pilze zu züchten und nutzen zu können.«

Die richtige Rezeptur für Paste und 3D-Druck
Gestartet haben die Forschenden des Fraunhofer UMSICHT das Projekt mit der Entwicklung einer pilzbasierten Paste, die mittels eines 3D-Druckverfahrens in die gewünschte Form gebracht werden konnten. Parallel dazu haben sie die Bewachsbarkeit der Paste untersucht. »Wir haben dabei festgestellt, dass der Pilz erfolgreich auf dem Treber wächst«, erläutert Lina Vieres, Biologin am Fraunhofer UMSICHT. »Allerdings behindert der Treber den Druckvorgang durch die enthaltenen Spelzen. Daher verzichten wir auf ihn als Substratzugabe und haben weitere Rezepturen mit Stroh und Holzspänen getestet.«

Rezeptur und Grundsubstrat haben gleichzeitig auch Auswirkungen auf die akustische Leistung des Materials. Hier stellte sich beispielsweise heraus, dass sich die sehr feinen Fasern für den Druck sehr vorteilhaft zeigen. Für die Akustik sind die Fasern aber eher hinderlich. Ebenso behinderten sie das Pilzwachstum, da dieser auf einen Gasaustausch in dem Material angewiesen ist. Mithilfe einer genauen Abstimmung zwischen Paste, Pilzwachstum, Eigenschaften und 3D-Druck haben die Forschenden eine Lösung gefunden: eine durchwachsbare, druckbare Paste.

Mehr als ein Schallabsorber
Die im Projekt FungiFacturing getesteten Werkstoffe besitzen weiterhin vielversprechende Eigenschaften in Bezug auf Druckfestigkeit, Wärmedämmung und Brandverhalten. »Mit diesen Eigenschaften eigenen sich Pilzwerkstoffe für weit mehr als nur Schallabsorber«, betont Krayer. Die Werkstoffe seien beispielsweise druckstabil und besitzen gute wärmedämmende Eigenschaften, die mit Holzfaserdämmplatten vergleichbar sind. In Brandversuchen sind keine offenen Flammen aufgetreten, und der Pilzwerkstoff lässt sich leicht am Anwendungsort anbringen. Pilzwerkstoffe können also auch in der Praxis leicht angewendet werden z.B. auch als Wärmedämmstoffe.

Weiterentwicklung des FungiFacturing-Ansatzes
Die Projektergebnisse zeigen, dass sich der entwickelte Prozess auf viele verschiedene Anwendungen und Werkstoffe übertragen lässt. Neben 3D-Druck sind weitere Herstellungsprozesse sowohl für pilzbasierte, als auch rein pflanzliche Pastenwerkstoffe denkbar. Das Fraunhofer UMSICHT prüft dazu nun verschiedene Produktionsverfahren und deren Ergebnisse.

The viscose specialities manufacturer Kelheim Fibres has won the Techtextil Award in the "New Concept" category for their project "Cellulose-based nonwovens for highly absorbent reusable products".
This award is intended to make cutting-edge developments visible, promote unconventional thinking and intensify the dialogue between researchers, manufacturers.

The starting point for the innovation was the search for a washable and thus reusable absorbent pad made of completely bio-based materials for the cloth diaper of the Berlin-based start-up Sumo.
Two main requirements of the application are obvious: A fast and efficient liquid distribution and high absorbency should minimise rewetting and leakage. Both are ensured by speciality viscose fibres from Kelheim, which have been making this essential contribution to absorbent hygiene products such as tampons for many years. The obvious solution was therefore to optimally utilise the synergies between knitted and woven structures with nonwovens.

In doing so, the advantages of nonwovens in combination with speciality viscose fibres in terms of absorbency (through e.g. more open-pored structures) have been perfectly transferred from the field of disposable to the world of reusable products. For reusable products, however, there is another challenge to overcome: they must remain stable during washing and over several cycles of use. To ensure this, an innovative nonwoven construction was developed in close cooperation with the STFI. These nonwovens can be used as a stand-alone solution or integrated into a textile structure.

• Bluesign announces partnership with SCTI

Bluesign has teamed up with Sustainable Chemistry for the Textile Industry (SCTI^TM) to develop a sustainable chemistry index that shall provide a standard communication guide for chemical suppliers, manufacturers, brands, and NGOs.

The first-of-its-kind index is intended to inspire change in the industry by making it easier for stakeholders to assess the sustainability of textile chemical products against the highest standards while safeguarding the intellectual property (IP) of participating chemical companies. IP protection is critical to ensuring ongoing investment in sustainable solutions.

Chemical products, such as dyes and textile auxiliaries, are often characterized with the attribute of “free of a certain substance”. Rather than prioritizing ingredients only, the bluesign^® SYSTEM already goes beyond this. The chemicals and the production site where they were created must meet certain criteria regarding environmental performance, occupational health and safety, and product stewardship performance to be bluesign^® APPROVED.

The sustainable chemistry index will be reserved for substances that offer transparency on a number of additional indicators including the chemical’s circularity viability, greenhouse gas emissions during production, and the source of the raw materials. The sustainable chemistry index will also require that the downstream use of the chemical is optimized, meaning, for example, that it promotes resource saving in textile finishing. Additionally, excellent corporate governance paired with well-defined environmental and social (ESG) goals will be a pre-condition.

SCTI^TM is an alliance of leading chemical companies that strives to empower the textile and leather industries to apply sustainable, state-of-the-art chemistry solutions that protect factory workers, local communities, consumers and the environment.

Bluesign will implement and manage the sustainable chemistry index as an independent authority with a holistic approach to helping companies throughout the textile supply chain improve their sustainability performance.