From the Sector

Adaptable insulation elements can ensure that the heat transfer through the building envelope can be adjusted as required. This saves heating or cooling energy and therefore costs. Intelligent systems can regulate heat transfer according to the outside temperature and the need for heating or cooling in the interior. In the ReVaD project, the German Institutes of Textile and Fiber Research Denkendorf (DITF) and their partners are developing adaptive building envelopes that can also use concrete components as structural thermal energy storage units for temperature control in buildings.

The research project is developing adaptable insulation elements based on the Knudsen effect. The Knudsen effect describes the change in the thermal conductivity of porous structures with the prevailing gas pressure in the pore space. If there is a vacuum in the pore space, the thermal conductivity is low; if the pressure increases, the thermal conductivity also increases. In order to use the principle in an adjustable insulation element, the highest possible switching factor between the two states is required. To achieve this, the pore system and gas pressure range must be optimally matched. In the adaptable insulation panel, the pore system consists of a spacer fabric that is being developed at the DITF. A key challenge here is the compressive strength of the filling core, which must only allow minimal deformation at a surface pressure of 10 N/cm2 imprinted by a fine vacuum.

The research team at the Technology Center Knitting Technique at DITF has developed the corresponding pressure-resistant structures. Their pore size will be optimized in the next steps by inserting textured yarns into the pole thread space. The basic thermal conductivity of the structure should be increased as little as possible. With the knitted structures in the panel, a switching factor, i.e. the ratio of maximum to minimum thermal conductivity achieved, of 5 has already been demonstrated. Current work involves optimizing the spacer structures and setting up a demonstrator.

In the joint project, the Institute of Technical Thermodynamics at the German Aerospace Center (DLR) in Stuttgart is developing a thermochemical reactor component that enables precise and energy-efficient gas pressure adjustment in the vacuum insulation panel. Metal hydride-hydrogen reaction systems are used, which allow the gas pressure in the insulation panel to be set through temperature control.

The Institute for Building Energetics, Thermal Engineering and Energy Storage (IGTE) at the University of Stuttgart is investigating the integration possibilities of the panels in the wall composite using simulations and experiments. The thermal-energetic simulations make it possible to assess the energy-saving potential of the technology in different scenarios and under different boundary conditions. A demonstrator is used to test the adaptable thermal insulation in an application-oriented manner.

The ReVaD project (development of adaptable vacuum insulation elements for the needs-based adaptation of heat transfer in building envelopes and structures as well as the thermal activation of storage masses) is funded by the Federal Ministry of Economics and Energy as part of joint industrial research (IGF) (FKZ: 22617 N).

Ina Brandes, Minister for Culture and Science of the state of North Rhine-Westphalia, visited Institute Director Professor Dr Thomas Gries in person on 7 March to gain an impression of research at Institut für Textiltechnik of RWTH Aachen University. Their tour took them through the central steps of the textile process chain - from primary spinning and fibre spinning processes to modern composites such as fibre composites and textile concrete. The ITA focuses on sustainability, circular economy and bioeconomy and offers comprehensive training programmes, from industrial training to doctorates. As a technology driver in textile technology, the ITA emphases on digitalisation and automation and the use of artificial intelligence (AI), especially neural networks, which have been under development at ITA for more than 30 years.

ITA researches and develops technical textiles for the needs of today and tomorrow. This includes, for example, the BIOTURF project. It is part of the BIOTEXFUTURE innovation area for bio-based textile research funded by the Federal Ministry of Education and Research. The aim here is to convert the textile value chain from petroleum-based to bio-based. Another major project is WIRKsam Competence Centre. By designing AI-supported work, WIRKsam aims to improve the competitiveness of companies and to make work healthier and more attractive. Other project examples include sustainable pipeline systems for the future, textile recycling and reducing the CO² footprint. ITA is researching, for example, how recyclable insulation textiles can contribute to thermal insulation or how textiles can be used to automatically and sustainably remove oil spills from water. To this end, ITA is active worldwide and internationally, including in cooperation with South Korea on industrial digitalisation and renewable energies, to name just a few examples.

With more than 100 doctoral students and a total of around 400 employees, ITA is one of the five largest institutes at RWTH Aachen University.

Science Minister Ina Brandes: “Prof. Thomas Gries and his team are demonstrating outstanding work at Institut für Textiltechnik (ITA) of RWTH Aachen University. For over 90 years, ITA has been researching, developing, and designing advanced textiles – for example sustainable fibres that reduce the use of petroleum-based materials. The different possible uses of the materials are impressive: from artificial soccer turf to sportswear, medical materials such as heart valves, and textile-reinforced concrete for building construction. New technologies and strong networks between science and industry empower ITA to significant textile progress.“

It is getting exciting again in Cologne on 12 and 13 March for the cellulose fibres industry. Six new products have been nominated for the popular innovation award.

Every year, the conference organisator nova-Institute together with award sponsor GIG Karasek honours companies that impress with their creativity, technological progress and ecological impact. The aim of the award is not only to recognise the winners’ innovative products, but also to set an example for the courage to innovate.

The nominees’ presentations, the voting and the winner ceremony will take place on 12 March at the Cellulose Fibres Conference 2025. Participants of the conference can vote live for the three winners. More than 220 people are expected to attend.

The Nominees

Fibers365 (DE): Hemp365 – Agricultural Decorative and Carrier Material
The solution “hemp365” is characterised by the development of a cost-effective, plant-based decorative and carrier material through the chemical-free processing of a regional agricultural fibre and the use of resulting short fibres in a wet-laid process, allowing for a massive reduction in the amount of fossil based binders required for strength and functionality. The non fibre content is less than 7 % and is also made from biogenic and biodegradable material. Hemp365 is 100% natural and vegan. It has been designed for consumer (fashion) and industrial applications in cooperation with an automotive OEM.

Releaf Paper France (FR): Releaf Fiber – Eco-Friendly Paper from Urban Fallen Leaves
Releaf Paper France transforms urban fallen leaves into sustainable cellulose fibres, offering an eco-friendly alternative to traditional hardwood pulp. Using proprietary low-temperature extraction, high-quality fibres with excellent paper-forming properties are isolated. With a cellulose content of 32-48 % and properties similar to hardwood, RELEAF fibres are ideal for packaging materials like corrugated paper, boxes, and bags. This innovative process, which requires minimal water and non-aggressive solvents, aligns with circular economy principles, repurposing millions of tons of urban leaf waste annually and supporting global brands in achieving sustainable packaging solutions.

SA-Dynamics (DE): Cellulose Aerogel Textiles – Next-Generation Insulation Materials
Cellulose Aerogel Textiles are revolutionary insulation materials made from 100 % biodegradable cellulose aerogel fibres. These combine the flexibility and ease of processing of traditional fabrics with the superior thermal insulation properties of aerogels by utilising a novel aerogel fibre process. Lightweight, highly efficient, and compatible with conventional textile machinery, they provide a sustainable alternative to fossil-based and animal-derived insulation materials. Fully recyclable and free from microplastic emissions, Cellulose Aerogel Textiles set a new benchmark for circular economy solutions in the textile and construction industries. Initial functional demonstrators were developed through two projects, funded by Biotexfuture and RWTH Innovation, respectively.

Sci-Lume Labs (US): Bylon® – Renewable Circular Fibres from Agricultural Waste
Sci-Lume Labs makes Bylon®, a scalable, circular, biosynthetic fibre. Using highly efficient chemistries to valorise agricultural waste, Bylon® seamlessly integrates into every step of the global value chain – from raw material production through textile manufacturing. Bylon® is distinct from incumbent and next-gen materials because it is simultaneously bio-based; waste-derived; degradable; recyclable; downstream-compatible; and melt-spinnable. Bylon® also offers a unique performance profile by combining the mechanical properties and tunability of traditional synthetics with the moisture properties and circularity of natural fibres. By not requiring changes to the supply chain, Bylon® empowers the industry to reduce its environmental impact – without compromising on quality, performance, or cost.

TMG Automotive (PT): REFIBER – Sustainable Automotive Surface Material
Textile-based composite solutions are a growing trend in the automotive sector, especially for decorative and functional interior applications. Innovative plant-based leather demonstrates this trend, combining sustainability with advanced performance. Developed from a biopolymer matrix combined with cellulose waste, this material transforms waste into a premium, eco-friendly solution. Its textile backing and non-woven laminate backing are also made entirely from cellulose fibres, creating a fully integrated bio-based composite. Designed for car interiors and more, this lightweight, durable and aesthetically versatile material sets a new standard for sustainable design, while satisfying the industry’s growing demand for circular and renewable alternatives.

Uluu (AU): Replacing plastic in textiles with natural, seaweed-derived materials
Uluu is an Australian start-up set to replace plastics with natural polymers called PHAs. Uluu materials are made from a regenerative feedstock: farmed seaweed, thus ending reliance on fossil fuels and land crops. Uluu, in partnership with Deakin University, is developing textiles that perform like synthetic polyester but are truly biodegradable and biocompatible, thus eliminating persistent microplastic pollution in fashion. Importantly, Uluu materials are reusable, recyclable, and most importantly, compostable. They are naturally produced through a unique fermentation process that uses seaweed, saltwater microbes and seawater. Uluu pellets can be directly substituted for plastic (e.g., polyester, nylon) in existing melt spinning equipment, creating yarns that can be knitted or woven into textiles. In addition to fibre-grade pellets, Uluu is also producing other grades of pellets to replace plastics used in e.g., buttons, sunglasses, hair clips and packaging.

Freudenberg Performance Materials Apparel (Freudenberg Apparel) announced the production opening of its state thermal insulation factory located in Long Thanh District, Vietnam. This facility specializes in the production of comfortemp®, Freudenberg’s renowned high-performance thermal insulation material, designed to elevate fashion and sportswear apparel.

This additional new factory extends Freudenberg Apparel's thermal insulation production across key Asian markets, including the Chinese mainland and South Korea. It also significantly strengthens Freudenberg Apparel’s global production capabilities and supply network. This expansion will bolster the company's competitive edge in Asia and reaffirms its ongoing dedication to innovation and evolution within the apparel industry.

"By localizing the production of our thermal insulation materials in Vietnam, we are not only reducing lead times for our customers but also streamlining the supply chain, ensuring we continue to deliver exceptional value for customers," stated John McNabb, Chief Technology Officer at Freudenberg Performance Materials. The Vietnamese facility is equipped to produce sustainable thermal insulations, providing customers with options that align with their sustainable garment production initiatives and goals.

The DITF is leading the joint project "DACCUS-Pre*". The basic idea of the project is to develop a new building material that stores carbon in the long term and removes more CO₂ from the atmosphere than is emitted during its production.       

In collaboration with the company TechnoCarbon Technologies, the project is now well advanced - a first demonstrator in the form of a house wall element has been realized. It consists of three materials: Natural stone, carbon fibers and biochar. Each component contributes in a different way to the negative CO₂ balance of the material:

Two slabs of natural stone form the exposed walls of the wall element. The mechanical processing of the material, i.e. sawing in stone cutting machines, produces significant quantities of stone dust. This is very reactive due to its large specific surface area. Silicate weathering of the rock dust permanently binds a large amount of CO₂ from the atmosphere.

Carbon fibers in the form of technical fabrics reinforce the side walls of the wall elements. They absorb tensile forces and are intended to stabilize the building material in the same way as reinforcing steel in concrete. The carbon fibers used are bio-based, produced from biomass. Lignin-based carbon fibers, which have long been technically optimized at DITF Denkendorf, are particularly suitable for this application: They are inexpensive due to low raw material costs and have a high carbon yield. In addition, unlike reinforcing steel, they are not susceptible to oxidation and therefore last much longer. Although carbon fibers are more energy-intensive to produce than steel, as used in reinforced concrete, only a small amount is needed for use in building materials. As a result, the energy and CO₂ balance is much better than for reinforced concrete. By using solar heat and biomass to produce the carbon fibers and the weathering of the stone dust, the CO₂ balance of the new building material is actually negative, making it possible to construct CO₂-negative buildings.

The third component of the new building material is biochar. This is used as a filler between the two rock slabs. The char acts as an effective insulating material. It is also a permanent source of CO₂ storage, which plays a significant role in the CO₂ balance of the entire wall element.

From a technical point of view, the already realized demonstrator, a wall element for structural engineering, is well developed. The natural stone used is a gabbro from India, which has a high-quality appearance and is suitable for high loads. This has been proven in load tests.  Bio-based carbon fibers serve as the top layer of the stone slabs. The biochar from Convoris GmbH is characterized by particularly good thermal insulation values.

The CO₂ balance of a house wall made of the new material has been calculated and compared with that of conventional reinforced concrete. This results in a difference in the CO₂ balance of 157 CO₂ equivalents per square meter of house wall. A significant saving!

* (Methods for removing atmospheric carbon dioxide (Carbon Dioxide Removal) by Direct Air Carbon Capture, Utilization and Sustainable Storage after Use (DACCUS).

In a celebration of Innovation and Swiss identity the three brands Nespresso, Mammut, and HeiQ have joined forces to create the "Extraordinary Jacket".

The Extraordinary Jacket is a testament to Swiss design and innovation. Mammut's super-light Ajungilak® insulation now incorporates HeiQ XReflex technology powered by Xefco, which contains part of the aluminum from recycled Nespresso capsules.

Being up in the mountains comes with significant temperature drops. Mammut, HeiQ and Nespresso have cocreated this high-performance insulation jacket that delivers great heat retention while being breathable, so one can enjoy more time above the tree line.

What makes the Extraordinary Jacket genuinely extraordinary is its ability to retain 20% more heat than a conventional insulation jacket of similar thickness. The innovative HeiQ XReflex 3D aluminized scrim layer reflects the body's heat radiation within the insulation layers, so the wearer doesn’t have to produce more energy to stay warm, resulting in effortless comfort even in harsh and demanding conditions.

SHIMA SEIKI MFG., LTD. of Wakayama, Japan will participate in the A+A 2023—Safety, Security and Health at Work International Trade Fair in Düsseldorf, Germany (24th-27th October 2023). On display will be the company's latest safety-related technology through its new SPG®-R pile glove knitting machine and the prototype SFG®-R next-generation glove knitting machine. Each of these machines drew attention at SHIMA SEIKI's booth at the International Textile Machinery (ITMA 2023) Exhibition in Milan.

SHIMA SEIKI's original SPG®, developed in 1979 as the world’s first automatic glove knitting machine to produce seamless pile-knitted gloves, is now reborn as a next-generation model. Pile gloves feature special traits that include cushioning, shock-reduction and thermal insulation and cold protection, making them popular especially in the field of industrial safety. Now, SPG® is redesigned from the ground up and re-introduced as the SPG®-R. The new SPG®-R features a new moveable sinker system with selectable loop presser function. Combined with a new belt-driven carriage it allows SPG® to provide efficient and reliable production of fashionable, high-quality pile gloves. Shown in 7 gauge at A+A, SPG®-R surpasses the previous generation with pioneering technology, improved capability and reliable productivity.

SHIMA SEIKI's original product on which the company was founded was the fully automated seamless glove knitting machine. While the original model evolved to become the current SFG® series, SFG®-R exhibited at A+A is its spiritual successor. With a new sinker system, a belt-driven 2-cam carriage and auto yarn carriers SFG®-R is a completely new machine for knitting gloves that conform better to the shape of the hand for improved fit. Furthermore its greater design potential offers users the opportunity to break out of the work glove market and into the fashion market. SFG®-R is shown as a prototype next-generation model in 12 gauge at A+A.

Also demonstrated will be SHIMA SEIKI's APEXFiz® design software. The importance of design software is made even more significant by the new patterning capabilities of SPG®-R and SFG®-R. Both machines now feature increased design potential that allow each of their products—pile gloves and work gloves, respectively—to expand their market into fashion. APEXFiz® is available for developing these designs. Furthermore virtual sampling on APEXFiz® is especially effective in streamlining the production process. Ultra-realistic simulation capability allows the use of virtual samples for evaluating design variations without producing actual samples for each variation, thereby minimizing the time, cost and resources normally required with sample-making, supporting smart, speedy and sustainable production.

The thermal insulation in the product series comfortemp® soft HO 80x from Freudenberg Performance Materials Apparel (Freudenberg) has achieved Gold status in the Material Health category of the Cradle to Cradle Certified® Product Standard Version 3.1.

The soft thermal insulation of the HO 80x soft series (HO 803, HO 804, HO 805, HO 806) is made from polyamide 6 wadding and is multiple recyclable in terms of a sustainable circular economy. The wadding is also characterized by high wearing comfort, making it suitable for sustainable applications in the luxury, sportswear and outdoor sectors. Thanks to its construction as roll goods, the wadding does not clump and can endure multiple wash cycles at 40°C.

Certifications by the Cradle to Cradle Products Innovation Institute are based on testing for hazardous materials in products and processes. Plus, the impact of chemical substances is assessed on the three product life cycle phases: final manufacture, use and end of use. Freudenberg will continue optimizing its products to ensure material safety and quality for future use and cycling.

Freudenberg Performance Materials Apparel (Freudenberg) as a leading specialist in woven, knitted and non-woven interlinings and thermal insulation, presents sustainable solutions for sportswear and related product segments of all kinds in Munich.

Trade show visitors will experience a wide range of innovative and sustainable interlinings for active sports outfits, stretch interlinings for yoga wear, Pilates & Co, and thermal insulations that combine perfect outdoor wearing comfort with high warmth retention. With comfortemp® brand thermal insulations and the Active Range, Freudenberg presents a complete package for outdoor and sportswear for winter sports: thermal insulations, interlinings, tapes, lining fabrics and adhesive solutions.

The independent jury has nominated the 100 percent biodegradable thermal insulation comfortemp® nature Lyocell HO 60x, made from Lyocell regenerated fibers, for the Textrends Award fall/winter 2024/25 season. The award is given exclusively to innovative products that are groundbreaking for the development of the textile industry. comfortemp® nature Lyocell HO 60x has a variety of extraordinary performance characteristics as a high warmth retention, bacteria inhibiting and fast drying, furthermore water repellent. High wearing comfort and the assurance of a perfect moisture balance characterize the volume fleece as ideal for the application in sportswear.

Freudenberg is presenting its entire European and global product portfolio from its "House of Sustainability" at ISPO. The "House of Sustainability" supports Freudenberg in minimizing its ecological footprint and maximizing its ecological handprint. For this purpose, the company's own manufacturing processes are designed to minimize the impact on the environment. In addition, products are developed to help customers produce more sustainably.

As an accredited testing and certification body, the “OETI - Institut fuer Oekologie, Technik und Innovation GmbH“ (OETI for short) has been successfully responding to prevailing market requirements for 55 years and, in the process, has made a name for itself worldwide. To mark its anniversary, this international centre of excellence with its origins in Austria is taking a look back at the most important milestones in its history as well as providing interesting insights into future developments.

As renowned flooring manufacturers founded the Austrian Carpet Institute on 25th of September 1967, no one could have imagined how successful the company would become. But even back then, one thing was clear to the experts: the need to establish a carpet research and testing centre in the form of an association. Today, over five decades later, OETI is a testing and certification services provider for OEKO-TEX® certificates and labels, textiles, leather, due diligence along the textile and leather supply chain as well as for personal protective equipment (PPE), flooring technology, furnishings and indoor air quality.

In 1992, OETI was a founding member of the ‘International OEKO-TEX® Association for Research and Testing in the Field of Textile and Leather Ecology’ with independent certifications and product labels. Ever since, OEKO-TEX® has enabled companies along the textile and leather supply chain and every consumer to make responsible decisions for safe, environmentally friendly and fairly manufactured products.

In line with its focus on sustainability, OETI and its Swiss parent company, TESTEX AG, wanted to build the new OETI headquarters using low energy construction techniques and ensure its carbon-neutral operation. To achieve these goals, the highest possible thermal insulation and energy optimisation standards were applied, while the carbon-neutral power supply is generated by its in-house photovoltaics system as well as domestic renewable energy.

The new headquarters, which the company moved into in 2021, provides space for 75 employees over 2,500m2 and boasts bright and perfectly equipped office areas. The laboratory areas, the analytical/chemical laboratory and the physical / fire laboratory were also designed based on the latest methods and technologies. This makes OETI, alongside its Swiss parent company TESTEX, the second fully fledged laboratory site in the entire, global TESTEX Group.