From the Sector

Many people across the world are bedridden – be it due to illness, an accident or old age. Because those affected often cannot move or turn over by themselves, they often end up with very painful bedsores. In the future, it should be possible to avoid bedsores with the help of materials that can be programmed to entirely adapt their form and mechanical properties. For example, the body support of mattresses made from programmable materials can be adjusted in any given area at the push of a button. Furthermore, the support layer is formed in such a way that strong pressure on one point can be distributed across a wider area. Areas of the bed where pressure is placed are automatically made softer and more elastic. Caregivers can also adjust the ergonomic lying position to best fit their patient.

Materials and microstructuring
Materials for applications requiring specific changes to stiffness or shape are being developed by researchers from Fraunhofer CPM, which is formed of six core institutes with the aim of designing and producing programmable materials. So, how can we program materials? “Essentially, there are two key areas where adjustments can be made: the base material – thermoplastic polymers in the case of mattresses and metallic alloys for other applications, including shape memory alloys – and, more specifically, the microstructure,” explains Dr. Heiko Andrä, spokesperson on the topic at the Fraunhofer Institute for Industrial Mathematics ITWM, one of the Fraunhofer CPM core institutes. “The microstructure of these metamaterials is made up of unit cells that consist of structural elements such as small beams and thin shells.” While the size of each unit cell and its structural elements in conventional cellular materials, like foams, vary randomly, the cells in the programmable materials are also variable – but can be precisely defined, i.e., programmed. This programming can be made, for example, in such a way that pressure on a particular position will result in specific changes at other regions of the mattress, i.e., increase the size of the contact surface and provide optimal support to certain areas of the body.

Materials can also react to temperature or humidity
The change in shape that the material should exhibit and the stimuli to which it reacts - mechanical stress, heat, moisture or even an electric or magnetic field - can be determined by the choice of material and its microstructure.

The journey to application
A single piece of material can take the place of entire systems of sensors, regulators and actuators. The goal of Fraunhofer CPM is to reduce the complexity of systems by integrating their functionalities into the material and reducing material diversity. We always have industrial products in mind when developing the programmable materials. As such, we take mass production processes and material fatigue into account, among other things,” says Franziska Wenz, deputy spokesperson on the topic at the Fraunhofer Institute for Mechanics of Materials IWM, another core institute of Fraunhofer CPM. The initial pilot projects with industry partners are also already underway. The research team expects that initially, programmable materials will act as replacements for components in existing systems or be used in special applications such as medical mattresses, comfortable chairs, variable damping shoe soles and protective clothing. “Gradually, the proportion of programmable materials used will increase,” says Andrä. Ultimately, they can be used everywhere – from medicine and sporting goods to soft robotics and even space research.

Haelixa, the Swiss traceability company and Damteks Textiles have announced a collaboration to mark and trace recycled acrylic fiber. Damteks is offering their recycled yarn to customers whereby they are able to place an order with the unique Haelixa DNA already attached.

The Haelixa solution is DNA markers which are solved in liquid and applied to fibers as a fine spray. Spot checks are completed after spraying to determine the presence of DNA and identify the product. The test is based on PCR technology that is 100% reliable and has forensic validity.

Damteks saw an increase in demand for blended yarn in the last year. The request is most often a composition of 30% recycled fiber with 70% standard fiber. Brands are looking for options to be more sustainable and Damteks proactively sought out an answer. They are offering the yarn with Haelixa DNA to validate the recycled acrylic in the mix.

The haelixa team visited the Damteks recycling facility in Istanbul to kick off the partnership that will continue throughout 2023. The traceability program has the DNA sprayed on the recycled fibers before spinning. The project also saw the use of a tailored Haelixa liquid sprayer designed by the team based in Switzerland. When manufacturers do not have built-in moisturizing systems, Haelixa provides them with a custom unit to shower the DNA liquid onto the fibers. This sprayer is engineered to match the mechanical processing of the customer.

Damteks is a family-owned business that pride itself in carefully selecting environmentally responsible options for its production processes. On top of the certifications they have obtained including - GRS, RCS, GOTS, OCS - Damteks decided to have their products "Marked and Traced by Haelixa" to add additional credibility and reliability. Damteks plans to offer marked and traced by Haelixa yarn in different dyes as their offering to brands.

December 29, Renewcell dispatched the first shipment of Circulose® dissolving pulp produced at its Renewcell 1 plant in Sundsvall to a customer. This sale is the latest step in the ramp-up of Renewcell 1 to its initial capacity of 60,000 tonnes per year.

Founded by innovators from Stockholm’s KTH Royal Institute of Technology in 2012, Re:NewCell AB (publ) (‘Renewcell’) is a multi-award-winning sustaintech company based in Sweden. The company’s vision is to make fashion circular. Through its patented process, Renewcell is able to recycle cellulosic textile waste, such as worn-out cotton clothes and production scraps, transforming it into a pristine new material called Circulose®.

Valérius 360 wanted to make a sustainable, circular approach possible in the fashion industry. Working together with Trützschler, a collaborative project has now achieved high-quality recycled yarn – opening up massive potential to drive measurable progress toward a circular and sustainable textile industry.

Testing at the Trützschler Technical Center
The team from Valérius 360 wanted to find ways of improving the processes for yarns made from 50 % recycled and 50 % virgin cotton (Ne30). In particular, it was seeking ways to reduce thick and thin spots, which disturb the appearance of the textile surface.

At the Trützschler Technical Center in Mönchengladbach, they conducted special trials that showed that using a direct spinning process for this application delivers much better results than a process with a draw frame passage for rotor yarns.

In direct spinning, the sliver from the card is directly drawn in the draw frame which is integrated in the can stock. This involves one less process step than using an autoleveller draw frame, while also saving space and giving staff more time for other operations.

On-site support from Trützschler Customer Service
The team from Valérius 360 also received in-house training from the Trützschler Customer Service department. Together, they analyzed and significantly improved the process at the Valérius 360 production site. This helped to bring yarns made from recycled raw materials up to the required level of the 50% Usterstatistics. This is the reference level for yarns made from virgin raw materials. Accordingly, 50 % of all yarn producers with raw cotton for rotor yarns and comparable yarn counts produce a poorer quality.

• Best practices in chemical footprints

Indorama Ventures Public Company Limited (IVL), a global sustainable chemical company, received top ranking, for the second consecutive year, among the world's 54 largest chemical companies in the ChemScore ranking by ChemSec, for its efforts to reduce its chemical footprint.

IVL is also the only chemical company that uses the Substitute It Now (SIN) List to remove hazardous substances, market safer alternatives, use bio-based and hazard-free recycled feedstocks, and develop low-carbon products. This reinforces IVL’s purpose of ‘reimagining chemistry together to create a better world’ and underscores the company’s support for the United Nations Sustainable Development Goals (SDGs).

Factors that increased IVL’s score include its ambition to use 16% bio-based and 10% recycled raw materials (rPET) as feedstock by 2030, and safer green chemistry substitutions to reduce toxicity from raw materials and production processes. IVL’s Deja™ brand, offering the world's first carbon-neutral PET pellet solution, is a sustainable alternative to reduce environmental impact.

The ChemScore ranking was developed by ChemSec, the non-profit International Chemical Secretariat in Sweden that advocates for safer alternatives to toxic chemicals, provide investors with better information to assess companies with strong chemical management strategies, and increased transparency. The ranking covers hazardous chemical portfolios, the development of safer chemicals and circular products, chemical management and company transparency, and responses to controversies, lawsuits, and regulations.

• Auraloop is a brand-new range of cushioning solutions made from an innovative structure of Polyester-based fibers, 100% recyclable, aimed at the mobility markets
• One of the objectives of Auraloop is a twofold reduction in the carbon footprint of car seat pads, currently made from polyurethane foam
• Auraloop offers an increased level of performance in terms of thermal comfort and durability

R&D teams within the Faurecia seating activity have recently penned an exclusive development agreement with Indorama Ventures. This partnership between Indorama Ventures and Faurecia, a company of FORVIA Group which is one of the largest automotive industry suppliers, has the aim of developing Auraloop, a new range of cushioning solutions for the mobility markets and intended to replace polyurethane foam currently used in car seats.

“By setting out these initial milestones in our close-knit collaboration with Faurecia, this partnership is an integral part of Indorama Ventures’ commitment to expand its existing Polyester (PET)-based portfolio and related activities into wider areas. By bringing together two leading players in the automotive industry, we aim to open up further growth opportunities for both partners”, stated Arnaud Closson, Chief Executive Officer at Indorama Ventures’ Mobility Group / Fibers Segment.

“Auraloop will replace those materials currently used in car seating with innovative and sustainable materials, based on polyester fibers that offer a total recyclability of 100%. This new material will allow for a twofold reduction in the carbon footprint of car seat pad solutions compared to current materials”, explains Nicolas Michot, Director of Technology at Faurecia Seating. Development of this product, which paves the way towards wider commercial release in two or three years, falls within the FORVIA Group strategy of going carbon neutral by 2045. For this, the group is seeking to root its commercial offer fully in the circular economy, with the development and production of sustainable cutting-edge materials under the banner of MATERI’ACT.

Auraloop offers a range of new perspectives in terms of seating comfort thanks to a more open fiber structure and permeability for air than current seating pad solutions, the breathability of seating is improved, enabling a better passive thermal regulation of occupants. The durability of seating is also increased by limited subsidence of the seat over its lifetime. The market for comfort aboard vehicles is constantly growing. The development of Auraloop falls within this dynamic, with a product offering significantly improved performances in terms of static, dynamic and welcoming comfort.

With the opening of another laboratory in Shanghai, China, testing service provider Hohenstein is growing its international network. Starting in the first quarter of 2023, the new textile laboratory in the Pudong District industrial park will supplement the Hong Kong laboratory capacity with testing and on-site inspection services in the hot spots of textile production.

The new laboratory will offer suppliers, manufacturers, brands, and retailers a wide range of testing service on textile quality. "Hohenstein stands for innovation and quality. We are very pleased to celebrate another milestone in our international expansion, while following these principles," said Prof. Dr. Stefan Mecheels, who is the third generation to lead the family-run company. "No matter where the examinations, tests and analyses are carried out, all our laboratories work with state-of-the-art equipment and the same high standards."

The laboratory locations in Germany, Hungary, Hong Kong, Bangladesh, India and now Shanghai, offer shortened turnaround and sample transport times. In some locations, Hohenstein offers sample pick up services from the customer to the lab for testing.

• Trevira CS Joint Booth with 16 Partners
• Sustainability Presentation: Path of Sustainability
• Special Exhibition: TEXTILE TALENTS by Trevira CS

The Trevira CS® brand presents itself together with 16 top customers and partners, an exciting special exhibition, and a sustainability presentation at Heimtextil in Frankfurt from 10 to 13 January 2023. The joint booth covers an area of over 1,400 m².

Visitors can find out about innovations in the fields of yarn production, woven and knitted fabrics and interior solar shading. Once again this year, the exhibitors on the Trevira CS stand will cover all textile applications with their flame retardant product for the home textile and contract market, from light curtains to heavy upholstery fabrics.

The following Trevira CS customers and partners will be exhibiting:
Chamatex SAS, F.lli Baroni s.r.l., FIDIVI Tessitura Vergnano S.p.A., Hoftex Färberei GmbH, Ilcat by Lei Tsu s.r.l., Lodetex S.p.A., Lonfil S.r.l., Mattes & Ammann GmbH & Co. KG, Mottura S.p.A., Pozzi Arturo S.p.A., PUGI R.G. S.R.L., Tessitura Mario Ghioldi & C. s.r.l., Tintoria Sala s.r.l., Torcitura Fibre Sintetiche S.p.A., Torcitura Padana S.p.A., Vlnap a.s., Wagenfelder Spinnereien GmbH and Wintex S.r.l.

The presentations on the Trevira CS brand will focus on 2 topics. One revolves around information on sustainability: The Path of Sustainability presentation will give visitors detailed information about the various sustainability aspects of the Trevira CS brand. The information chain will deal with Trevira CS technology, particularly sustainable product variants, the longevity of the textiles, the Trevira CS eco brand for flame retardant fabrics with recycled content, and the take-back program for Trevira CS fabrics. At the end of the chain, a prototype of a new product development will be presented, giving insight into the brand’s future sustainable development opportunities.

Once again, there will also be a special exhibition. The focus here will be on showcasing the special additional functions and properties that Trevira CS fabrics offer in addition to their flame retardancy. Visitors can look forward to a special staging: It’s showtime for the TEXTILE TALENTS by Trevira CS!

For the design of the special exhibition, all Trevira CS customers were invited to submit their latest Trevira CS products, distinguished by additional functions and/or special features, to the annual Trevira CS Fabric Competition. 227 products from 50 customers were submitted, from which about 150 were selected for the special exhibition. Several thousand meters of yarn will also be used in this year's special show.

• Lenzing again recognized for sustainable sourcing, innovation and transparency
• Lenzing achieves the highest category for the third time already

The Lenzing Group achieved first place in the “Hot Button Ranking” of the Canadian non-profit organization Canopy, thus confirming its leading role in the areas of sustainability and responsible wood and pulp sourcing. Lenzing can also once again celebrate a dark green shirt, synonymous with the highest category.

In this ranking, which receives a lot of attention in the textile and apparel industry, Canopy evaluates the world’s 34 largest producers of cellulosic fibers in terms of their sustainable wood and pulp sourcing, their efforts with regard to the use of alternative raw materials and their achievements in the protection of ancient and endangered forests. Resource preservation is a key element of Lenzing’s corporate strategy and at the core of its innovation agenda. The sustainable production of TENCEL™, VEOCEL™ and LENZING™ ECOVERO™branded specialty fibers is based on these principles.

Promoting the circular economy
With its REFIBRA™ and Eco Cycle technologies, Lenzing offers solutions for transforming the textile and nonwovens industries towards a circular economy. In line with its vision for the circular economy, “We give waste a new life. Every day.” Lenzing is driving the industry toward a full circular economy by striving to give waste a new life in all aspects of its core business and developing circular solutions together with potential partners inside and outside the current value chain. A milestone on this path is the cooperation with the Swedish pulp producer Södra. The two global market leaders, who have been proactively promoting the circular economy in the fashion industry for many years, are joining forces to give the topic a further boost and make a decisive contribution to solving the global textile waste problem by making fibers from post-consumer textiles.

Today, Lenzing offers lyocell fibers made from 30 percent recycled cotton waste. The company aims to launch lyocell, modal and viscose staple fibers with up to 50 percent recycled post-consumer content on a commercial scale by 2025 and to develop a new circular business model by closing the loops for post-consumer waste. By 2025, the company plans to enter into further partnerships with 25 key supply chain companies.

Freudenberg recently completed the installation of 13,000m2 of photovoltaic cells on the roof of its new Nantong factory. With a total capacity of 1.6 MW, the new rooftop installation is projected to produce 1.5 million kWh of green electricity each year. In addition to reduced energy consumption from the grid, this new installation will lower CO2 emissions by approximately 1,200 tons/year.

Beyond the photovoltaic installation, Freudenberg has integrated sustainability into the Nantong factory’s design, with advances in energy conservation and emissions and loss reduction.
The factory uses valley voltage to cool water in its reservoir that is applied to A/C and machine temperature management during working hours. The new waste gas treatment technology enables hot water collected by heat exchangers to be directly reused in production, thereby reducing thermal energy waste. Furthermore, the factory applies a new multi-phase waste gas treatment technology to reduce volatile organic compounds (VOC) emissions. The factory has also incorporated new methods to improve the A-grade rates of bi-elastic interlinings and shirt interlinings, further reducing waste while improving garment quality.

As part of the Group’s sustainable development strategy, Freudenberg Apparel has also launched its House of Sustainability to minimize the impact of production processes on the environment and help customers achieve their sustainability goals, with responsible products across the seasons.