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04.02.2025

Sustainable Textiles – The Way Forward

High dependence on fossil carbon, associated high carbon footprint, low recycling rates and microplastics: several solutions are emerging.

The evolution of the demand for textile fibres from 1960 to the present day shows how the textile industry found itself in this dilemma. In 1960, around 95% of textile fibres were of natural origin, from bio-based carbon, and there was no problem with microplastics, all fibres were biodegradable.

High dependence on fossil carbon, associated high carbon footprint, low recycling rates and microplastics: several solutions are emerging.

The evolution of the demand for textile fibres from 1960 to the present day shows how the textile industry found itself in this dilemma. In 1960, around 95% of textile fibres were of natural origin, from bio-based carbon, and there was no problem with microplastics, all fibres were biodegradable.

The explosion in demand – 650% between 1960 and 2023 – could only be met by synthetic fibres from the chemical and plastics industries. Their share grew from 3% in 1960 to 68% in 2023 and from less than 700,000 tonnes to 85 million tonnes/year (The Fiber Year 2024). The new fibres covered a wide range of properties, could even achieve previously unknown properties and, above all, thanks to a powerful and innovative chemical and plastics industry, production volumes could be rapidly increased and comparatively low prices realised.
 
At the same time, sustainability has declined, the carbon footprint of the textiles has increased significantly and the issue of microplastics requires solutions.

The first step would be to significantly increase the proportion of renewable fibres, as this is the only way to reduce dependence on fossil carbon, especially in the form of crude oil, and thus reduce the carbon footprint. But how can this be done? As defined by the Renewable Carbon Initiative, renewable carbon comes from biomass, CO2 and recycling: From carbon above ground. This addresses the core problem of climate change, which is extracting and using additional fossil carbon from the ground that will end up in the atmosphere.
 
What can cotton, bast fibres and wool contribute?
Cotton fibre production can hardly be increased, it is stagnating between 20 and max. 25 million tonnes/year. Cultivated areas can hardly be expanded, and existing areas are salinized by the irrigation required. With the exception of about 1% organic cotton, significant amounts of pesticides are used. The market share of “preferred” cotton – defined by a list of recognized programmes – will fall from 27% of total cotton production in 2019/20 to 24% in 2020/21, after years of growth. (Textile Exchange, October 2022: Preferred Fiber & Materials Market Report) Bast fibres such as jute (75%), flax, hemp, ramie or kenaf would require a huge boost in technology development and capacity investment and will nevertheless probably remain more expensive than cotton, simply because bast fibres are much more complicated to process, e.g. separating the fibre from the stalk, which is not necessary for cotton as a fruit fibre. As a source of cellulose fibre, bast fibres will remain more expensive than wood.

Although bast fibres are more sustainable than many other fibres, there is unlikely to be a major change – unless China focuses on bast fibres as a substitute for cotton. Plans to do so have been put on hold due to technological problems.

The importance of man-made cellulosic fibres (MMCFs) or simply cellulose fibres
Cellulose fibre production has been growing steadily over the last decades, reaching an all-time high of nearly 8 million tonnes in 2023, and is expected to grow further to 11 million tonnes in 2030. Cellulosic fibres are the only bio-based and biodegradable fibres that cover a wider range of properties and applications and can rapidly increase their capacity. The raw materials can be virgin wood as well as all types of cellulosic waste streams from forestry, agriculture, cotton processing waste, textile waste and paper waste. Increasing the share of cellulosic fibres will therefore play a crucial role in solving the sustainability challenges of the textile industry.

The production of MMCFs includes viscose, lyocell, modal, acetate and cupro. The market share of FSC and/or PEFC certified MMCF increased from 55–60% in 2020 to 60–65% of all MMCF in 2021. The market share of “recycled MMCFs” increased to an estimated share of 0.5%. Much research and development is underway. As a result, the volumes of recycled MMCFs are expected to increase significantly in the coming years. (Textile Exchange, October 2022: Preferred Fiber & Materials Market Report)

The CEPI study “Forest-Based Biorefineries: Innovative Bio-Based Products for a Clean Transition” (renewable-carbon.eu/publications/product/innovative-bio-based-products-for-a-clean-transition-pdf/) identified 143 biorefineries in Europe, of which 126 are operational and 17 are planned. Most of them are based on chemical pulping (67%) – the precursor of cellulose fibres. Most biorefineries are located in Sweden, Finland, Germany, Portugal and Austria. But there are already biorefineries in operation or planned in 18 different European countries.

The global report “Is there enough biomass to defossilise the Chemicals and Derived Materials Sector by 2050?” (upcoming publication end of February 2025, available here: renewablecarbon.eu/publications) shows particularly high growth in dissolving/chemical pulp (from 9 in 2020 to 44 million tonnes in 2050; growth of 406%), cellulose fibres (from 7 in 2020 to 38 million tonnes in 2050; growth of 447%) and cellulose derivatives (from 2 in 2020 to 6 million tonnes in 2050; growth of 190%).

Biosynthetics – Bio-based and CO2-based Synthetic Fibres
To further reduce the share of fossil-based synthetic fibres, bio-based polymer fibres (also called “biosynthetics”) are an excellent option because of their wide range of properties – only the implementation will take decades as the share today is only below 0.5%. There are many options, such as polyester fibres (PLA, PTT, PEF, PHA), polyolefin fibres (PE/PP), bio-based PA fibres from castor oil. PTT, for example, is well established in the US carpet market and PLA in the hygiene market. They are all bio-based, but only a few are also biodegradable (PLA, PHA).
 
Biosynthetics are one of many applications of bio-based polymers. In general, 17 bio-based polymers are currently commercially available with an installed capacity of over 4 million tonnes in 2023. Ten of these bio-based polymers are used as biosynthetics. resulting in the production of over one million tonnes of biosynthetics (nova report: Bio-based Building Blocks and Polymers – Global Capacities, Production and Trends 2023–2028, renewable-carbon.eu/publications/product/bio-based-buildingblocks-and-polymers-global-capacities-production-and-trends-2023-2028-short-version/).

In principle, many fibres can also be made from CO2, but here the technology and capacity needs to be developed, perhaps in parallel with the production of sustainable aviation fuels from CO2, which will become mandatory.

Circular Economy – Recycling of Textile Waste & Fibre-to-Fibre Recycling
The textile industry is at a pivotal moment, where sustainability is no longer an option but a necessity. As the environmental impact of textile production and disposal becomes increasingly clear, the pressure to adopt circular economy principles is growing.

One promising solution is fibre-to-fibre recycling, a process that converts used textiles into new, highquality fibres, effectively closing the waste loop. While significant progress has been made in the European Union, challenges remain, particularly in scaling up technologies, lack of collection systems and handling of mixed fibre textiles. Europe currently generates approximately 6.95 (1.25 + 5.7) million tonnes of textile waste per year, of which only 1.95 million tonnes is collected separately and 1.02 million tonnes is treated by recycling or backfilling.
 
The recycling of textiles reduces the demand for virgin fibres and the textile footprint. The share of recycled fibres increased slightly from 8.4% in 2020 to 8.9% in 2021, mainly due to an increase in bottlebased PET fibres. However, in 2021, less than 1% of the global fibre market will come from pre- and post-consumer recycled textiles (Textile Exchange, October 2022: Preferred Fiber & Materials Market Report). New regulations from Brussels for closed-loop recycling, especially bottle-to-bottle recycling, could threaten the use of bottle-based PET fibres in the textile industry. This would mean a reduction in recycling rates in the textile industry until the logistics and technologies are in place to recycle textiles on a large scale. This will be necessary to contribute to the circular economy. Several research projects are underway to find solutions and first pilot implementations are available.

The Future of Sustainable Textiles
The sustainable textile industry of the future will be built on a foundation of cotton fibres and fast-growing cellulose fibres, later strongly supported by bio- and CO2-based synthetic fibres (“biosynthetics”), and high recycling rates for all types of fibres. This combination can eventually replace most fossil-based synthetic fibres by 2050.

To get the latest information on cellulose fibres, the nova-Institute organises the “Cellulose Fibres Conference” every year, which will take place next time in Cologne on 12 and 13 March 2025 – this year for the first time with biosynthetics.

Source:

Michael Carus and Dr. Asta Partanen, nova-Institute (Germany)

Russell Holden, Pixabay
28.01.2025

Project explores possibilities for UK wetsuit recycling

The University of Plymouth will work with Circular Flow to examine the scope for developing a UK neoprene recycling facility. A plan to develop the UK’s first wetsuit recycling facility is among eight new projects funded by Future Fibres Network Plus.

Many wetsuits are made from neoprene – but the UK currently has no way of recycling them, meaning more than 380 tonnes is burned or landfilled each year. The neoprene recycling project is one of the eight mini projects newly funded by the network.

The University of Plymouth will work with Circular Flow to examine the scope for developing a UK neoprene recycling facility. A plan to develop the UK’s first wetsuit recycling facility is among eight new projects funded by Future Fibres Network Plus.

Many wetsuits are made from neoprene – but the UK currently has no way of recycling them, meaning more than 380 tonnes is burned or landfilled each year. The neoprene recycling project is one of the eight mini projects newly funded by the network.

Led by the University of Plymouth and working with industry partner Circular Flow Ltd, it will examine the scope for developing a UK neoprene recycling facility to help make the surfing and diving industry more circular or sustainable. Circular Flow already has a facility in Bulgaria, but establishing one in the UK – home to some of the world’s most popular surfing locations – would be a significant development.
Dr Kayleigh Wyles, Associate Professor in Psychology: “Our project will investigate the level of interest among UK businesses for returning end-of-life wetsuits and accessories to a UK facility where they can be turned into new and useful products. We also aim to understand consumers’ willingness to purchase and wear recycled neoprene products, and explore the logistics of developing a recycling facility.”

“Many of those who buy and wear wetsuits have a genuine interest in the environment, and therefore in the sustainability of these products. However, wetsuits are one of the hardest products to recycle and the possibility of opening a recycling facility in the UK is very exciting,” stated Emma Major-Mudge,
Head of Sales and Commercial Partnerships, Circular Flow
 
Dr Katie Major-Smith, a post-doctoral researcher involved in the project, added: Ultimately, we hope to promote circularity in the water sports industry and keep hundreds of tonnes of wetsuits out of landfill.

If the findings suggest there is sufficient support for a neoprene recycling facility, the team will develop an investment pack to share with funders to help build it.

Future Fibres Network Plus – which aims to bring environmental science into the heart of the UK fashion, clothing and textile sectors – is a network led by the University of Exeter, collaborating with the universities of Leeds, Huddersfield and Plymouth, University of the Arts London, and the UK Fashion and Textile Association (UKFT).

Through its flexible fund, Future Fibres Network Plus is investing a total of £1 million in the eight projects.

Those projects include another initiative being led by the University, in partnership with Plan B Recycling Technologies Ltd, centred around the fibre-to-fibre recycling potential of polyester.
Recycled polyester pellets are often of low quality due to contamination by other materials, and the new project will develop a pre-recycling treatment process to improve recycled polyester quality.
It will address barriers to fibre recycling, examine the levels of microfibre release during laundry, and create a knowledge repository to optimise recycling processes.

Future Fibres Network Plus sits within the Network Plus in Circular Fashion and Textiles, a collaboration of three sub-networks that seeks to understand and drive the fashion and textile industry towards sustainable and responsible practices. The Network Plus is part of the UKRI £15million Circular Fashion and Textile Programme.

Source:

University of Plymouth

Silk Yarn Photo: LoggaWiggler from Pixabay
14.01.2025

Discarded silk yarn can clean up polluted waterways

Cornell researchers have developed an elegant and sustainable way to clean up waterways: reusing one waste product to remove another.

Cornell researchers have developed an elegant and sustainable way to clean up waterways: reusing one waste product to remove another.

Led by Larissa Shepherd, Ph.D., assistant professor in the Department of Human Centered Design, in the College of Human Ecology, the team has proposed using discarded silk yarn for the removal of dye and oil from water. Studies on several different forms of silk: fabrics, yarns, and fibers revealed that yarn unraveled from silk fabric, soaked up methylene blue (MB), a common textile dye, from water at a substantially higher rate than other forms of silk they tested.
 
What’s more, the silk yarn can be cleaned and reused. Shepherd’s group found that the textile can withstand at least 10 cycles, with minimal loss of functionality.
 
Shepherd is the corresponding author of “Waste Bombyx Mori Silk Textiles as Efficient and Reuseable Bio-Adsorbents for Methylene Blue Dye Removal and Oil-Water Separation,” published in November 2024 in the journal Fibers. Co-authors are Hansadi Jayamaha, doctoral candidate in the field of fiber science, and Isabel Schorn ’26, a fiber science undergraduate.

Jayamaha found that 12 milligrams of silk filament yarn have 90% MB dye removal efficiency within 10 minutes of exposure, for concentrations up to 100 parts per million, substantially greater than the efficiency of other forms – even electrospun fiber mats or fabrics treated with the hollow silk microparticle spheres, which was a surprise, the researchers said.

“By creating the spheres,” Jayamaha said, “we were creating a more hydrophilic surface compared to the silk fabric, which is more hydrophobic. But by disassembling the fabric to the yarn stage, we are creating higher surface area, and that improves the adsorption.”

The group also tested silk textile adsorption capacity with oil, and found that Noil fabric (a textile that contains silk yarns composed of short fibers, rather than filament) displays oil adsorption capacities three times the initial weight of the fabric for corn oil, and close to twice the weight for gasoline.

Tests on both materials showed that, following a diminishment of function after the first cleaning-reuse cycle, the material maintained its functionality for the subsequent nine cycles.
This intrinsic property of silk as a dye adsorbent, the group found, can be achieved without chemical or other alteration of the material – just deconstructing the textile product.
     
“When you regenerate silk, you have to use very harsh chemicals,” Shepherd said. “In our case, we’re just using the fabrics themselves. Yes, we may have to unravel them to get the benefit, but that’s much better than putting these harsh chemicals out into the environment.”

Shepherd envisions “pillows” containing the silk yarn unraveled from discarded textiles and remnants from the cut and sew operations of the textiles industry as being an effective means of cleaning up spills and waste materials, including MB dye, which is detrimental to agricultural land and waterways when it is accidentally released from textile plants.

“We realized that we can kill two birds with one stone: We can get rid of waste textiles, which is a big issue in the textile industry in general,” Shepherd said. “And then we found that it’s actually really good at adsorbing, just because of its natural, structural properties.”

This work made use of the Cornell Center for Materials Research Shared Facilities, as well as the Cornell NanoScale Science and Technology Facility, a member of the National Nanotechnology Coordinated Infrastructure, which is supported by the National Science Foundation. This work was partially funded by an American Association of Textiles Chemists and Colorists graduate research grant.

Source:

Tom Fleischman, Cornell Chronicle

Stains on the white cotton fabric treated with zinc oxide. Photo: Mikael Nyberg / University of Turku
11.12.2024

Self-cleaning cotton or a colour-changing print

For many years researchers from Nordic countries have worked for making textile industry more sustainable. Now there are prototypes of cotton which can clean itself and of textiles which are created of invasive lupines.  

How could future clothes and textiles become more ecofriendly, smart and sustainable? A research group from Nordic countries has tried to figure out this for many years and in October the prototypes they have made were presented in an exhibition in Turku.

A doctoral researcher Alicja Lawrynowicz from Faculty of Technology at the University of Turku has been developing two different smart textiles. In one of the projects researchers have created a cotton fabric which can clean itself without water.

For many years researchers from Nordic countries have worked for making textile industry more sustainable. Now there are prototypes of cotton which can clean itself and of textiles which are created of invasive lupines.  

How could future clothes and textiles become more ecofriendly, smart and sustainable? A research group from Nordic countries has tried to figure out this for many years and in October the prototypes they have made were presented in an exhibition in Turku.

A doctoral researcher Alicja Lawrynowicz from Faculty of Technology at the University of Turku has been developing two different smart textiles. In one of the projects researchers have created a cotton fabric which can clean itself without water.

This is possible because the fabric has been treated with mineral called zinc oxide.
 
The mineral forms a self-cleaning layer and stains on the fabric disappear when they are exposed to the daylight, in other words ultraviolet light. If stains disappear by themselves, it reduces the need of washing and garment burdens nature less.

Here you can see how the stains gradually disappear on the white cotton fabric that has been treated with zinc oxide.

In the other textile project, researchers have managed to develop non-toxic textile print which changes its colour when it is subjected to sunlight. Mineral hackmanite, which reacts to ultraviolet radiation, is used here. The mineral does not originate from mines but is created in a laboratory in Turku.

For first time ever, hackmanite is now used in textile prints. The mineral works as an ultraviolet censor and changes its colour when you have been too long time in the sun and must protect yourself. It can reduce the risk for the damage of the sun, says Alicja Lawrynowicz.

Material out to the market
Prototypes which now have been retrieved are not yet available in larger scale. So, what is going to happen with all discoveries?
The idea is that they are not going to stay in the laboratory. We hope that in the future our innovations will be used in industry, says Lawrynowicz.

The research is multidisciplinary, which means that there has been cooperation between different research groups. Research goes on also in other Nordic countries.  

Lupine can become textiles
In Denmark one research group has invested in ecofriendly colouring and created dyes out of big amounts of waste from local restaurants, among others avocado and onion peels. Avocado peels give textiles a beautiful yellow colour and onion creates brown nuances. In future these colours could replace traditional, toxic dyes.

At the same time researchers in Aalto University have produced textiles out of lupine, which is an invasive species in Finland.

Until now we have been removing lupines out of ditches and seeing it as a problem, but here researchers have created fibers and been able to weave a cloth out of it, says research coordinator Helen Salminen from the field of material science at the University of Turku.

Within the framework of the project researchers in Sweden have in turn worked on developing alternatives to plastic fibers (elastane) which are often used in jeans fabric for making fabric more elastic.

Cotton which contains a few percent of plastic fibers is difficult to recycle. This makes it difficult to use the fabric as a raw material for further processes. For that reason, it is important to find new ways to weave fabric so that fabric can be recycled and can be elastic without plastic fibers, says Alicja Lawrynowicz.

Source:

Aalto University, YLE Svenska about the NordForsk-funded project 'Beyond e-Textiles' and 'Interlaced' exhibition at the University of Turku

Waterfiltration Photo Manuel Darío Fuentes Hernández , Pixabay
10.11.2024

New filtration material could remove long-lasting chemicals from water

Membranes based on natural silk and cellulose can remove many contaminants, including “forever chemicals” and heavy metals.

Water contamination by the chemicals used in today’s technology is a rapidly growing problem globally. A recent study by the U.S. Centers for Disease Control found that 98 percent of people tested had detectable levels of PFAS, a family of particularly long-lasting compounds also known as “forever chemicals,” in their bloodstream.

A new filtration material developed by researchers at MIT might provide a nature-based solution to this stubborn contamination issue. The material, based on natural silk and cellulose, can remove a wide variety of these persistent chemicals as well as heavy metals. And, its antimicrobial properties can help keep the filters from fouling.

Membranes based on natural silk and cellulose can remove many contaminants, including “forever chemicals” and heavy metals.

Water contamination by the chemicals used in today’s technology is a rapidly growing problem globally. A recent study by the U.S. Centers for Disease Control found that 98 percent of people tested had detectable levels of PFAS, a family of particularly long-lasting compounds also known as “forever chemicals,” in their bloodstream.

A new filtration material developed by researchers at MIT might provide a nature-based solution to this stubborn contamination issue. The material, based on natural silk and cellulose, can remove a wide variety of these persistent chemicals as well as heavy metals. And, its antimicrobial properties can help keep the filters from fouling.

The findings are described in the journal ACS Nano, in a paper by MIT postdoc Yilin Zhang, professor of civil and environmental engineering Benedetto Marelli, and four others from MIT.

PFAS chemicals are present in a wide range of products, including cosmetics, food packaging, water-resistant clothing, firefighting foams, and antistick coating for cookware. A recent study identified 57,000 sites contaminated by these chemicals in the U.S. alone. The U.S. Environmental Protection Agency has estimated that PFAS remediation will cost $1.5 billion per year, in order to meet new regulations that call for limiting the compound to less than 7 parts per trillion in drinking water.

Contamination by PFAS and similar compounds “is actually a very big deal, and current solutions may only partially resolve this problem very efficiently or economically,” Zhang says. “That’s why we came up with this protein and cellulose-based, fully natural solution,” he says.

“We came to the project by chance,” Marelli notes. The initial technology that made the filtration material possible was developed by his group for a completely unrelated purpose — as a way to make a labelling system to counter the spread of counterfeit seeds, which are often of inferior quality. His team devised a way of processing silk proteins into uniform nanoscale crystals, or “nanofibrils,” through an environmentally benign, water-based drop-casting method at room temperature.

Zhang suggested that their new nanofibrillar material might be effective at filtering contaminants, but initial attempts with the silk nanofibrils alone didn’t work. The team decided to try adding another material: cellulose, which is abundantly available and can be obtained from agricultural wood pulp waste. The researchers used a self-assembly method in which the silk fibroin protein is suspended in water and then templated into nanofibrils by inserting “seeds” of cellulose nanocrystals. This causes the previously disordered silk molecules to line up together along the seeds, forming the basis of a hybrid material with distinct new properties.

By integrating cellulose into the silk-based fibrils that could be formed into a thin membrane, and then tuning the electrical charge of the cellulose, the researchers produced a material that was highly effective at removing contaminants in lab tests.

The electrical charge of the cellulose, they found, also gave it strong antimicrobial properties. This is a significant advantage, since one of the primary causes of failure in filtration membranes is fouling by bacteria and fungi. The antimicrobial properties of this material should greatly reduce that fouling issue, the researchers say.

“These materials can really compete with the current standard materials in water filtration when it comes to extracting metal ions and these emerging contaminants, and they can also outperform some of them currently,” Marelli says. In lab tests, the materials were able to extract orders of magnitude more of the contaminants from water than the currently used standard materials, activated carbon or granular activated carbon.

While the new work serves as a proof of principle, Marelli says, the team plans to continue working on improving the material, especially in terms of durability and availability of source materials. While the silk proteins used can be available as a byproduct of the silk textile industry, if this material were to be scaled up to address the global needs for water filtration, the supply might be insufficient. Also, alternative protein materials may turn out to perform the same function at lower cost.

Initially, the material would likely be used as a point-of-use filter, something that could be attached to a kitchen faucet, Zhang says. Eventually, it could be scaled up to provide filtration for municipal water supplies, but only after testing demonstrates that this would not pose any risk of introducing any contamination into the water supply. But one big advantage of the material, he says, is that both the silk and the cellulose constituents are considered food-grade substances, so any contamination is unlikely.

“Most of the normal materials available today are focusing on one class of contaminants or solving single problems,” Zhang says. “I think we are among the first to address all of these simultaneously.”

“What I love about this approach is that it is using only naturally grown materials like silk and cellulose to fight pollution,” says Hannes Schniepp, professor of applied science at the College of William and Mary, who was not associated with this work. “In competing approaches, synthetic materials are used — which usually require only more chemistry to fight some of the adverse outcomes that chemistry has produced. [This work] breaks this cycle! ... If this can be mass-produced in an economically viable way, this could really have a major impact.”

The research team included MIT postdocs Hui Sun and Meng Li, graduate student Maxwell Kalinowski, and recent graduate Yunteng Cao PhD ’22, now a postdoc at Yale University. The work was supported by the U.S. Office of Naval Research, the U.S. National Science Foundation, and the Singapore-MIT Alliance for Research and Technology.

The Materials Market Report 2024 (c) Textile Exchange
30.09.2024

Materials Market Report 2024: Fossil-based synthetics dominate

Textile Exchange launched the first Materials Market Report in 2013 as a comprehensive, annual publication that provides unique data and insights into global fiber and raw materials production.

The Materials Market Report shares best available data on global fibre and material production volumes alongside program-specific volumes and other insights such as the number of certified sites. For the purpose of this report, leather, rubber, and down are considered non-fibre raw materials and are therefore included separately from the section and charts on ‘global fibre’.

Textile Exchange launched the first Materials Market Report in 2013 as a comprehensive, annual publication that provides unique data and insights into global fiber and raw materials production.

The Materials Market Report shares best available data on global fibre and material production volumes alongside program-specific volumes and other insights such as the number of certified sites. For the purpose of this report, leather, rubber, and down are considered non-fibre raw materials and are therefore included separately from the section and charts on ‘global fibre’.

It helps inform the textile industry’s efforts to reduce emissions associated with raw material production in line with a 1.5-degree temperature rise pathway. The report highlights the urgency to accelerate the transition to fibres from preferred sources, intensify efforts to significantly reduce reliance on virgin fossil-based materials, and invest in strategies that separate value creation from the need for extracting new materials.

It’s important to note that the compilation of global market data for fibres and raw materials is challenging and the quality of available data is often limited. The collection of primary data from suppliers is beyond the scope of this report so Textile Exchange relies on secondary data from industry associations, international organizations, governmental organizations, standard setters, and research institutes.

While Textile Exchange has collected, analysed, and compiled this information in all good conscience and has cross-checked it wherever possible, the report is intended for general guidance and information purposes only. Data gaps and inconsistencies are common in global market data, so modelling has often had to be applied.

Global fibre production reached an all-time high of 124 million tonnes in 2023, according to the latest Materials Market Report– which looks at total volumes used for apparel, home textiles, footwear, or any other application.

The data shows that the market share of virgin fossil-based synthetics continued to increase in 2023, with a decline in that of cotton and recycled fibres. Other key takeaways from the report’s data include:

  • Record fibre production: Despite industry efforts, global fibre production has more than doubled since 2000. The last year’s 124 million tonnes represents a 7% increase from 116 million tonnes in 2022, and is expected to rise to 160 million tonnes in 2030 if current trends continue.
  • Synthetics continue to dominate: The production of virgin fossil-based synthetic fibres increased from 67 million tonnes in 2022 to 75 million tonnes in 2023. Polyester remained the most produced fibre globally, accounting for 57% of total fibre production.
  • Recycled synthetics face challenges: Although recycled polyester fibre production slightly increased in 2023, the overall market share of recycled polyester decreased from 13.6% to 12.5%. For polyamide (nylon), the second most used synthetic fibre, recycled fibres constituted only 2% of the total market share. These trends are attributed to the lower prices and continued production of virgin synthetics, as well as current limitations in recycling technologies. Less than 1% of the global fibre market came from pre- and post-consumer recycled textiles.

    The combined share of all recycled fibres slightly decreased in 2023, from around 7.9% to 7.7%, mainly due to an increase in the production of fossil-based polyester, which had lower prices than recycled polyester. Fossil based synthetics production increased from 67 million tonnes in 2022 to 75 million tonnes in 2023. Meanwhile, less than 1% of the global fibre market came from pre- and post-consumer recycled textiles.
  • Cotton production saw a slight decline: Total global cotton volumes fell slightly from 25.1 million tonnes in 2022 to 24.4 million tonnes in 2023. However, the share of cotton produced under sustainability programs remained stable, accounting for 29% of all cotton produced.
  • Certified wool climbs: Data showed positive trends for wool produced under standards such as the Responsible Wool Standard (RWS), ZQ, SustainaWOOL (GREEN and GOLD), Sustainable Cape Wool Standard (SCWS) and Climate Beneficial programs. This increased from 4.2% in 2022 to 4.8% in 2023. Recycled wool continued to account for around 6% of the global wool market.
  • Certified mohair and cashmere reached almost half of market share: Certified fibres such as mohair and cashmere saw notable growth, both with market shares of 47%.
  • Manmade cellulosic fibres production increased: Overall MMCF production increased from 7.4 million tonnes in 2022 to 7.9 million tonnes in 2023, representing 6% of the global fibre market.

The report highlights a continued reliance on new virgin fossil-based synthetic materials, threatening to undermine the industry’s commitments to its climate goals. It also shows the current limitations of textile-to-textile recycling and an urgent need for innovative solutions, with most recycled polyester still coming from PET bottles.

Amid these concerns, one positive trend that stands out is the increased industry demand for responsible animal fibres through programs like the Responsible Mohair Standard (RMS) and Responsible Alpaca Standard (RAS), both contributing to better animal welfare and environmental management. This indicates the potential of farm-level standards of this kind to increase market recognition of more sustainable practices on the ground.

“We hope this data serves as a clear call to action for the industry, highlighting both the successes and the critical areas where we must intensify our focus to meet climate targets,” said Claire Bergkamp, CEO of Textile Exchange.

“Unlocking textile-to-textile recycling pathways will be essential to reducing reliance on virgin synthetics. Equally important is continuing to support those on the ground who are driving the transition from conventional systems to preferred materials. It is more urgent than ever to support those who have already invested in preferred systems, while also enabling the transition away from conventional at scale.”

Download of the Materials Market Report 2024.

More information:
fibre production Market report
Source:

Textile Exchange

Project Remake Photo Anna Kjellsson
23.09.2024

Textile skills for unemployed individuals to enter a new industry

From 2025, municipalities will be required to collect and manage large volumes of textiles, following the EU's new waste directive. The project "Remake Textile" is preparing for this by providing skill development to long-term unemployed individuals. At the Swedish School of Textiles, participants learn about textiles and ways to breathe new life into old fabrics.

From 2025, municipalities will be required to collect and manage large volumes of textiles, following the EU's new waste directive. The project "Remake Textile" is preparing for this by providing skill development to long-term unemployed individuals. At the Swedish School of Textiles, participants learn about textiles and ways to breathe new life into old fabrics.

Three groups, each consisting of participants who have been out of the job market for an extended period, will take part in the project over nine months. The project began with a focus on health and working life before shifting its focus to textiles. The first group has just completed their time at the Swedish School of Textiles and is now moving on to internships in the second-hand industry.
“They have lea
rned how a fibre becomes yarn and then fabric. We have worked with printing and dyeing and how to create a product from the material. We have also worked on repairs – mending and fixing garments and textiles,” explains Tuser Biswas, postdoctoral researcher in textile technology who leads the Swedish School of Textiles' part of the project.

In addition to the Swedish School of Textiles at the University of Borås, other project partners include the Gothenburg Region, the organisations Doing Good and Coompanion, and it is financed by the European Social Fund.

“In this project, there was a demand for knowledge in an area that doesn't yet exist on the market – something that will be important in the future. With the waste directive, solutions are needed to handle textile waste, and the hope is that participants in this project will have valuable skills and be able to start working in this industry at short notice,” Tuser Biswas explains.

Education as Part of the Solution
“In this project, we are trying to address the upcoming waste challenge with education. However, this education is not as intensive as our regular courses and programmes. We have tried to be flexible and adapt to the participants’ prior knowledge and to what we can offer in two weeks,” says Tuser Biswas.

Positive Participants
Nino, one of the participants, previously had experience in creating and redesigning garments.
“I have done a lot on my own before too. I have always been punk in that way – if there are no resources, I still go ahead. These weeks at the Swedish School of Textiles have been fun; it has been very positive to try everything out and luxurious to come here, meet all the great teachers, and be in the facilities.”

Looking forward to the internship at a second-hand shop, Nino feels prepared:
“We will get to choose from textile waste that cannot be sold. Instead, we will create something new out of it!”

About the project Remake Textile
The objective of the project is to develop innovative solutions for managing the increasing amount of textile waste that municipalities will be responsible for from 2025 onwards. At the same time, it focuses on research training and skills development about textile recycling for unemployed people with good academic backgrounds.

Start date: 2024-03-01
End date: 2026-02-28

Through collaboration with various partners, the project aims to increase the workforce for textile sorting facilities in municipalities and recycling industries, while supporting cooperative and non-profit organizations in circular textile activities.

The outcome of the project is expected to promote a sustainable circular business model through textile sorting and recycling activities, which can serve as a model for the whole industry. The aim is to create a solution that both promotes sustainability in the textile industry and increases opportunities for those previously unemployed and economically vulnerable. At the same time, the municipalities will be well-informed and given the opportunity to use our developed training modules and personnel during or after the project period.

Source:

University of Borås, Anna Kjellsson

Atacama desert Photo by Fernando Rodrigues on Unsplash
23.07.2024

Reducing environmental & health impacts of global trade of 2nd hand clothes

The rise of fast-fashion, marked by rapid turnover of collections, has led to a sevenfold increase in the global trade of used clothing in the last 4 decades. With more than 80% of all purchased clothing items globally (62% in the EU) being disposed of as general garbage, which is incinerated or landfilled, this represents a massive waste of resources, causing severe environmental and health impacts. A report recently published by UNECE and the United Nations Economic Commission for Latin America and the Caribbean (ECLAC) contains an in-depth analysis of second-hand clothing trade between Europe and Chile, offers policy recommendations to the industry, exporting and importing countries to remedy this situation.

The rise of fast-fashion, marked by rapid turnover of collections, has led to a sevenfold increase in the global trade of used clothing in the last 4 decades. With more than 80% of all purchased clothing items globally (62% in the EU) being disposed of as general garbage, which is incinerated or landfilled, this represents a massive waste of resources, causing severe environmental and health impacts. A report recently published by UNECE and the United Nations Economic Commission for Latin America and the Caribbean (ECLAC) contains an in-depth analysis of second-hand clothing trade between Europe and Chile, offers policy recommendations to the industry, exporting and importing countries to remedy this situation.

According to UN Comtrade data, in 2021 the European Union (30%), China (16%), and the United States (15%) were the leading exporters of discarded clothes, while Asia (28%, predominantly Pakistan), Africa (19%, especially Ghana and Kenya), and Latin America (16%, mainly Chile and Guatemala) were the leading importers.  

This has been facilitated by the advent of low-cost synthetic fibres and by trade liberalization that allowed the offshoring of production to countries with low-wage labour. Large proportions of clothing are made from difficult-to-separate blended fibres, making opportunities for economic reuse and recycling rare, particularly in developed countries.

“When did we normalize throwing clothes away?”, questions Lily Cole, Climate Activist and Advisor to UNECE. “As the world, mostly the Global North, has produced and consumed fashion at an unrelenting rate, a handful of countries, mainly in the Global South, have become cemeteries for the world’s unloved clothes. While visiting the Atacama Desert, my attention was brought to the textile mountains and the shifting cultural, economic, and political landscapes that birthed them. Consumer awareness is very helpful, yet, ultimately, we need policies to curb systemic trends, which is why this report and its recommendations are so necessary.”

Europe: sorting and recycling capacities lag behind  
In Europe only 15-20% of disposed textiles are collected, usually through containers, door-to-door collection and donations. About half of the collected textiles are downcycled to be used as, for example, insulation, filling, and single-use industrial wipes. Only 1% is recycled into higher value outputs such as new clothing, while the remainder is exported to developing countries.  

Of the 55% of collected clothes that are reusable, only 5 percentage points have a value on second-hand markets in the EU, while 50 percentage points have a value on export markets.  

The European Union has thus tripled its exports of used clothes over the past 2 decades, from 550,000 to 1.7 million tons. Europe, including the United Kingdom, accounts now for more than a third of global used clothing exports, and this share could continue to grow as collection rates are expected to rise.  

A design-led circular economy approach to clothing is still in its infancy. The EU Circular Economy Action Plan (CEAP) was adopted in 2020, the EU Strategy for Sustainable and Circular Textiles was adopted in 2022, and the EU Ecodesign for Sustainable Products Regulation was adopted in 2023. However, these policies are still to bear fruit in the form of large-scale upstream solutions to the problems of textile waste. 

“The used clothes global market is constantly growing, and with it, its negative impacts. The textile industry has a key responsibility to adopt more sustainable practices, exporters and importers to adopt relevant policy decisions to foster traceability, circularity and sustainability. UN/CEFACT policy recommendations and standards will support this transition. And of course, we all have a role to play, as consumers, to make sustainable choices,” stressed UNECE Executive Secretary Tatiana Molcean.

The case of Chile: mountains of used clothes visible from the moon  
Most countries in Latin America (including Argentina, Brazil, Colombia, Mexico, and Peru) have introduced clothing import bans to protect their national textile and fashion industries and avoid the threats posed by clothing dumps.

By contrast, Chile levies zero tariffs, and applies no quantity restrictions in imports, only requiring shipments to be sanitised (by fumigation). It has thus become one of the top 10 importers in the world, and the first in Latin America, receiving 126,000 tons of textiles in 2021. 40% of these entered the country through the northern port of Iquique, where they are manually sorted, primarily by women, and separated into first, second, and third quality.

75% of all imported used clothes were deemed non-reusable, 30,000 tons of which are covering today 30 hectares of the Atacama desert, generating pollution and creating hazard to local communities’ health. At the same time, trade in second-hand garments also provides employment and formal and informal income for national and migrant populations in established stores and open-air markets across the country, and this must be factored in when redefining public policies.

“To address the environmental and social issues of used textile trade, the EU and Chile must work together on creating robust regulatory frameworks. A partnership between the European Union and Chile could pioneer innovative approaches to regulate and reduce the impact of second-hand textile trade, including by setting global standards for the trade of used textiles, focusing on sustainability and social responsibility." Highlights UNECLAC Executive Secretary, Mr. José Manuel Salazar-Xirinachs.  

Multifold recommendations
The report contains a series of recommendations to the textile industry, exporters and importers.   

To exporting countries

  • Make circular economy considerations central to the design of clothing, with mandatory targets for fibre composition that improve quality, durability, repairability, and recyclability  
  • Introduce an Extended Producer Responsibility (EPR) system holding producers responsible for the products they manufacture  
  • Develop more sorting and recycling plants, through financial incentives  
  • Develop minimum EU criteria for second-hand clothing exports through the use of digital product passports (DPPs)  
  • Run awareness-raising campaigns to encourage consumers to make more informed choices about their clothes

To importing countries – the example of Chile

  • Improve customs procedures & administrative measures at the port of Iquique to ensure digital traceability of flows of used clothing and textile based on the UN/CEFACT traceability standard   
  • Establish a Circular Economy Strategy for Textiles  
  • Set-up public-private alliances for recycling projects through tax extension schemes and funds to support entrepreneurship, innovation, and job creation for vulnerable groups, particularly in the Tarapacá region  
  • Improve the legal framework for waste management   
  • Implement a Regional Solid Waste Control Plan, involving inspections of sanitary landfills, clean points, and dumps to increase the enforcement capacity of regional health authorities  
  • Accelerate the adoption of the Chilean draft law on environmental quality of soils.

The report also recommends making changes to international trade agreements, such as the2023 Interim Trade Agreement between the EU and Chile, which includes a chapter on Trade and Sustainable Development, to step up bilateral cooperation, and using it as a template for other bilateral trade agreements between the EU and other countries.   

Download the Executive Summary

Source:

United Nations Economic Commission for Europe

Bread waste + fungi = yarn (c) Photos by Kanishka Wijayarathna (bread waste), Erik Norving (prototypes), Andreas Nordin (researchers) and Sofie Svensson (microscope).
17.07.2024

Bread waste + fungi = yarn

The production of new materials from fungi is an emerging research area. In a research project at the Swedish School of Textiles at the University of Borås, wet spinning of fungal cell wall material has shown promising results. In the project, fungi were grown on bread waste to produce textile fibers with potential in the medical technology field.

Sofie Svensson's project addresses, among other things, the UN's Global Goals 9, sustainable industry, innovation, and infrastructure, and Goal 12, sustainable consumption and production, as the project aimed to use sustainable methods in a resource- and cost-effective way, with less impact on people and the environment.

Sofie Svensson, who recently defended her dissertation in the field of Resource Recovery, explained:

The production of new materials from fungi is an emerging research area. In a research project at the Swedish School of Textiles at the University of Borås, wet spinning of fungal cell wall material has shown promising results. In the project, fungi were grown on bread waste to produce textile fibers with potential in the medical technology field.

Sofie Svensson's project addresses, among other things, the UN's Global Goals 9, sustainable industry, innovation, and infrastructure, and Goal 12, sustainable consumption and production, as the project aimed to use sustainable methods in a resource- and cost-effective way, with less impact on people and the environment.

Sofie Svensson, who recently defended her dissertation in the field of Resource Recovery, explained:

“My research project is about developing fibres spun from filamentous fungi for textile applications. The fungi were grown on bread waste from grocery stores. Waste that would otherwise have a significant environmental impact if discarded.”

The novelty of the project lies in the method used – wet spinning of cell wall material.

“Wet spinning is a method used to spin fibres (filaments) from materials such as cellulose. In this project, cell wall material from filamentous fungi was used to produce fibres through wet spinning. The cell wall material from the fungi contains various polymers, mainly polysaccharides such as chitin, chitosan, and glucan. The challenge was to spin the material. It took some time initially before we found the right conditions”, explained Sofie Svensson.

Antibacterial properties
Filamentous fungi were cultivated in bioreactors to produce fungal biomass. Cell wall material was then isolated from the fungal biomass and used to spin a filament, which was tested for its suitability in medical applications.

“Tests of the fibers showed compatibility with skin cells and also indicated an antibacterial effect”, said Sofie Svensson, adding:

“In the method we worked with, we focused on using milder processes and chemicals. The use of hazardous and toxic chemicals is currently a challenge in the textile industry, and developing sustainable materials is important to reduce environmental impact.”

What is the significance of the results?
“New materials from fungi are an emerging research area. Hopefully, this research can contribute to the development of new sustainable materials from fungi”, explained Sofie Svensson.

Interest from the surrounding community has been significant during the project, and many have had a positive attitude toward the development of this type of material.

When will we see products made from these fibers?
“This particular method is at the lab scale and still in the research stage”, she explained.

The doctoral project was conducted within the larger research project Sustainable Fungal Textiles: A novel approach for reuse of food waste.

What is the next step in research on fungal fibers?
“Future studies could focus on optimizing the wet spinning process to achieve continuous production of fungal fibers. Additionally, testing the cultivation of fungi on other types of food waste.”

How have you experienced your time as a doctoral student in Resource Recovery?
“It has been an intense period as a doctoral student, and I have been really challenged and developed a lot.”

What is your next step?
“I will be taking parental leave for a while before taking the next step, which is yet to be decided.”

Sofie Svensson defended her dissertation on 14 June at the Swedish Centre for Resource Recovery, University of Borås.
 
Read the dissertation: Development of Filaments Using Cell Wall Material of Filamentous Fungi Grown on Bread Waste for Application in Medical Textiles

Opponent: Han Hösten, Professor, Utrecht University
Main Supervisor: Akram Zamani, Associate Professor, University of Borås
Co-Supervisors: Minna Hakkarainen, Professor, KTH; Lena Berglin, Associate Professor, University of Borå

Source:

University of Borås, Solveig Klug

Photo: Damir Omerovic, Unsplash
12.06.2024

Crops to tackle environmental harm of synthetics

From risottos to sauces, mushrooms have long been a staple in the kitchen. Now fungi are showing the potential to serve up more than just flavor—as a sustainable, bendy material for the fashion industry.

Researchers are using the web-like structure of the mushroom's root system—the mycelium—as an alternative to synthetic fibers for clothing and other products such as car seats.

"It's definitely a change of mindset in the manufacturing process," said Annalisa Moro, EU project leader at Italy-based Mogu, which makes interior-design products from the mycelium. "You're really collaborating with nature to grow something rather than create it, so it's kind of futuristic."

Mogu, located 50 kilometers northwest of Milan, is managing a research initiative to develop nonwoven fabrics made of mycelium fibers for the textile industry.

From risottos to sauces, mushrooms have long been a staple in the kitchen. Now fungi are showing the potential to serve up more than just flavor—as a sustainable, bendy material for the fashion industry.

Researchers are using the web-like structure of the mushroom's root system—the mycelium—as an alternative to synthetic fibers for clothing and other products such as car seats.

"It's definitely a change of mindset in the manufacturing process," said Annalisa Moro, EU project leader at Italy-based Mogu, which makes interior-design products from the mycelium. "You're really collaborating with nature to grow something rather than create it, so it's kind of futuristic."

Mogu, located 50 kilometers northwest of Milan, is managing a research initiative to develop nonwoven fabrics made of mycelium fibers for the textile industry.

Called MY-FI, the project runs for four years through October 2024 and brings together companies, research institutes, industry organizations and academic institutions from across Europe.

MY-FI highlights how the EU is pushing for more sustainable production and consumption in the textile and apparel industry, which employs around 1.3 million people in Europe and has annual turnover of €167 billion.

While getting most of its textiles from abroad, the EU produces them in countries including France, Germany, Italy and Spain. Italy accounts for more than 40% of EU apparel production.

Delicate and durable
The mycelium grows from starter spawn added to crops such as cereals. The threadlike filaments of the hyphae, the vegetative part of the fungus, create a material that grows on top. It is harvested and dried, resulting in soft, silky white sheets of nonwoven fabric that are 50 to 60 square centimeters.

The delicate material is made stronger and more durable through the addition of bio-based chemicals that bind the fibers together.

Its ecological origins contrast with those of most synthetic fibers such as nylon and polyester, which derive from fossil fuels such as coal and oil.

That means production of synthetic fibers adds to greenhouse-gas emissions that are accelerating climate change. In addition, when washed, these materials shed microplastics that often end up polluting the environment including rivers, seas and oceans.

The MY-FI mycelium needs very little soil, water or chemicals, giving it greener credentials than even natural fibers such as cotton.

Dress rehearsal
For the fashion industry, the soft, water-resistant properties of the mycelium are as appealing as its environmental credentials.

Just ask Mariagrazia Sanua, sustainability and certification manager at Dyloan Bond Factory, an Italian fashion designer and manufacturer that is part of MY-FI.

The company has used the mycelium-based material—in black and brown and with a waxed finish—to produce a prototype dress, a top-and-midi-skirt combination, bags and small leather accessories.

Laser cutting and screen printing were used to evaluate the material's behavior. The challenge was to adapt to the sheets of fabric—squares of the mycelium material rather than traditional rolls of textiles like cotton, linen and polyester—as well as properties such as tensile strength and seam tightness.

"We have had to completely change the paradigm and design processes and garments based on the material," said Sanua.

The company hopes the mycelium material will be a way of offering consumers a range of products that can be alternatives to animal leather.

Leather-unbound
Meanwhile, Germany-based Volks¬wagen, the world's No. 2 car manufacturer, is looking to mycelium technologies to reduce its environmental footprint and move away from leather for vehicle interiors.

Customers increasingly want animal-free materials for interiors from seat covers and door panels to dashboards and steering wheels, so adding a sustainable substitute for leather is an exciting prospect, according to Dr. Martina Gottschling, a researcher at Volkswagen Group Innovation.

"A fast-growing biological material that can be produced animal-free and with little effort, which also does not require petroleum-based resources, is a game-changer in interior materials," she said.

The mycelium material is also lighter than leather, another positive for reducing VW's carbon footprint.

The company's involvement in MY-FI is driving project researchers at Utrecht University in the Netherlands and I-TECH Lyon in France to enhance the durability of the mycelium fabric. To move from prototype to production line, the fabric must meet quality requirements set by VW to ensure the material lasts for the life of the vehicle.

It's a challenge that Gottschling believes will be met in the coming decade.

"We already see the material as one of the high-quality materials for interior applications that will be possible in the future," she said.

When life gives you tomatoes
Mushrooms aren't the only food with the potential to spin a sustainable-yarn revolution. Tomato stems have a hidden talent too, according to Dr. Ozgur Atalay and Dr. Alper Gurarslan of Istanbul Technical University in Turkey.

Seeing tomato vines left to wither in the fields after the crop was harvested, Atalay and Gurarslan began to investigate whether the stems could be transformed into sustainable fibers.

Tests proved that the agricultural waste could indeed be turned into yarn. But Atalay and Gurarslan were determined to go a step further. They wanted to use tomato stems to create a type of yarn for garments that monitor heart beats, respiratory rates and joint movements.

The two researchers lead a project to create this kind of electrically conductive apparel using—for the first time—sustainable materials.

Called SMARTWASTE, the project runs for four years until the end of 2026 and also involves academic and research organizations from Germany, Italy, the Netherlands and Poland.

"The beauty of the project is that we are starting from waste," said Atalay. "We are taking agricultural waste and not just creating regular textiles but something much more valuable."

While cost estimates will follow later in the project when design partners work on creating actual products, he signaled that smart clothing will be a good deal more expensive than the ordinary kind.

A smart textile shirt could cost as much as €1,000, according to Atalay.

The specialized material, limited production runs and research and development needed to create wearable technologies that are durable, washable and comfortable all contribute to the price tag.

Advancements in technology should eventually lead to lower production costs and consumer prices.

Seeds of poplar success
The Turkish countryside has also inspired a second strand to the project. Turkey's abundant poplar trees and—more specifically—their white, fluffy cotton-like seeds prompted Gurarslan to investigate whether they could be a sustainable textile source.

While their fibers have been dismissed as too short to make a yarn, the seeds have three particular properties that appeal to the textile industry: a hollow, pipe-like structure that can trap heat to provide thermal qualities, an antibacterial nature and water resistance.

The network of SMARTWASTE experts has blended the seeds with recycled polyester to make a nonwoven fabric that the team intends to turn into textile products with enhanced thermal properties.

The researchers hope this is just the start of a far-reaching transformation of textiles.

"Our goal is to train the next generation of researchers and innovators in sustainable textiles," said Atalay.

A Passion for Paisley Photo The Great Tapestry of Scotland
21.05.2024

Edinburgh was weaving Paisley shawls 40 years before Paisley

Edinburgh was weaving what became known as Paisley shawls in the 1700s more than 40 years before the Renfrewshire town they were named after, a new exhibition will show.

Hosted by Heriot-Watt University and The Great Tapestry of Scotland in Galashiels, the exhibition will reveal that Edinburgh weavers were the first in Britain to create replicas of the Kashmir shawls brought back from India, the first recorded being in 1767.

It wasn’t until 1808 that Paisley’s weaving industry started making the shawls, and later gave the garment its iconic name.

The exhibition, called A Passion for Paisley, will feature a selection from the range of more than 100 shawls and shawl fragments that forms part of the University’s textile collection, housed in the Scottish Borders Campus in Galashiels.

Edinburgh was weaving what became known as Paisley shawls in the 1700s more than 40 years before the Renfrewshire town they were named after, a new exhibition will show.

Hosted by Heriot-Watt University and The Great Tapestry of Scotland in Galashiels, the exhibition will reveal that Edinburgh weavers were the first in Britain to create replicas of the Kashmir shawls brought back from India, the first recorded being in 1767.

It wasn’t until 1808 that Paisley’s weaving industry started making the shawls, and later gave the garment its iconic name.

The exhibition, called A Passion for Paisley, will feature a selection from the range of more than 100 shawls and shawl fragments that forms part of the University’s textile collection, housed in the Scottish Borders Campus in Galashiels.

Helen Taylor, Archivist at Heriot-Watt University, said: “Paisley design has stayed a very iconic motif and has remained a fixture even as fashions have changed.  Our collection in the Borders is a very good one and was really developed for teaching and research. You can't recreate the weaving, because the looms don’t exist anymore. But if you’re looking for design inspiration, Paisley shawls are a great example of East-West influence.”

Paisley shawls are richly patterned and often feature a distinctive Persian-style teardrop motif. This is inspired by the Babylonian Tree of Life, a magical tree from Mesopotamian mythology that grew in the centre of paradise.

Other motifs include floral and tendril designs, a striped zebra design and an oblong motif known as a ‘temple door’ design. Red was a recurring colour in Paisley shawls, alongside blues, greens, yellows and other colours, all created from natural plant dyes. Paisley shawls were hugely popular in the 18th and 19th centuries. Empress Josephine, Napoleon’s first wife, was known to own about 400 of the woollen shawls.

“When the British empire was expanding, people started bringing back Kashmir shawls as gifts,” Ms Taylor explained. “They were very expensive and were actually woven in cashmere. Weavers in Edinburgh started making reproduction shawls, and the first record of a reproduction Kashmir shawl being woven was in Edinburgh in 1767.”

Edinburgh in the 1700s already had a damask industry – when designs are woven into fabric rather than printed onto it – and it was these weavers who started making the reproduction Kashmir shawls. But when fashions evolved and the shawls got bigger, the Edinburgh weavers started outsourcing to Paisley, where weaving skills and technology were advancing and amongst the best in the world.

“In Edinburgh, shawl weaving was more of a cottage industry, with small looms being used around the city’s Old Town and shawls being woven in sections and sewn together,” Ms Taylor said. “In Paisley, they started using Jacquard looms, which used punch cards and allowed more complex design to be woven more easily.”

Most of Heriot-Watt’s Paisley shawls were collected by a ceramics curator called Janet Paterson who collected Paisley shawls in the 1940s and 50s. The collection was given to the University by her son, Alan, along with his tartan collection.

A Passion for Paisley runs from 26 March to 12 July 2024 at The Great Tapestry of Scotland, 14-20 High St, Galashiels TD1 1SD. There is an entrance fee of £5.

Heriot-Watt School of Textiles and Design dates back to 1883, when classes in weaving, dyeing and chemistry were introduced to train workers for the local textiles industry.

The School is a centre of excellence in design, with Honorary Graduates including British fashion icon Dame Vivienne Westwood. It is based on Heriot-Watt’s Scottish Borders Campus, which is built around a historic mill in Galashiels, at the heart of Scotland's luxury textile industry.

The Great Tapestry of Scotland visitor centre was purpose-built to house The Great Tapestry of Scotland, one of the world’s largest community arts projects. The Tapestry was hand-stitched by a team of 1,000 stitchers from across Scotland and charts 420 million years of Scotland's history, heritage, innovations and culture through 160 panels.

Source:

Heriot-Watt University

(c) MIT Self Assembly Lab
29.04.2024

The 4D Knit Dress - Is this the future of fashion?

Developed by the Self-Assembly Lab, the 4D Knit Dress uses several technologies to create a custom design and a custom fit, while addressing sustainability concerns.

Until recently, bespoke tailoring — clothing made to a customer’s individual specifications — was the only way to have garments that provided the perfect fit for your physique. For most people, the cost of custom tailoring is prohibitive. But the invention of active fibers and innovative knitting processes is changing the textile industry.

“We all wear clothes and shoes,” says Sasha MicKinlay MArch ’23, a recent graduate of the MIT Department of Architecture. “It’s a human need. But there’s also the human need to express oneself. I like the idea of customizing clothes in a sustainable way. This dress promises to be more sustainable than traditional fashion to both the consumer and the producer.”

Developed by the Self-Assembly Lab, the 4D Knit Dress uses several technologies to create a custom design and a custom fit, while addressing sustainability concerns.

Until recently, bespoke tailoring — clothing made to a customer’s individual specifications — was the only way to have garments that provided the perfect fit for your physique. For most people, the cost of custom tailoring is prohibitive. But the invention of active fibers and innovative knitting processes is changing the textile industry.

“We all wear clothes and shoes,” says Sasha MicKinlay MArch ’23, a recent graduate of the MIT Department of Architecture. “It’s a human need. But there’s also the human need to express oneself. I like the idea of customizing clothes in a sustainable way. This dress promises to be more sustainable than traditional fashion to both the consumer and the producer.”

McKinlay is a textile designer and researcher at the Self-Assembly Lab who designed the 4D Knit Dress with Ministry of Supply, a fashion company specializing in high-tech apparel. The dress combines several technologies to create personalized fit and style. Heat-activated yarns, computerized knitting, and robotic activation around each garment generates the sculpted fit. A team at Ministry of Supply led the decisions on the stable yarns, color, original size, and overall design.

“Everyone’s body is different,” says Skylar Tibbits, associate professor in the Department of Architecture and founder of the Self-Assembly Lab. “Even if you wear the same size as another person, you're not actually the same.”

Active textiles
Students in the Self-Assembly Lab have been working with dynamic textiles for several years. The yarns they create can change shape, change property, change insulation, or become breathable. Previous applications to tailor garments include making sweaters and face masks. Tibbits says the 4D Knit Dress is a culmination of everything the students have learned from working with active textiles.

McKinlay helped produce the active yarns, created the concept design, developed the knitting technique, and programmed the lab’s industrial knitting machine. Once the garment design is programmed into the machine, it can quickly produce multiple dresses. Where the active yarns are placed in the design allows for the dress to take on a variety of styles such as pintucks, pleats, an empire waist, or a cinched waist.

“The styling is important,” McKinlay says. “Most people focus on the size, but I think styling is what sets clothes apart. We’re all evolving as people, and I think our style evolves as well. After fit, people focus on personal expression.”

Danny Griffin MArch ’22, a current graduate student in architectural design, doesn’t have a background in garment making or the fashion industry. Tibbits asked Griffin to join the team due to his experience with robotics projects in construction. Griffin translated the heat activation process into a programmable robotic procedure that would precisely control its application.

“When we apply heat, the fibers shorten, causing the textile to bunch up in a specific zone, effectively tightening the shape as if we’re tailoring the garment,” says Griffin. “There was a lot of trial and error to figure out how to orient the robot and the heat gun. The heat needs to be applied in precise locations to activate the fibers on each garment. Another challenge was setting the temperature and the timing for the heat to be applied.”

“We couldn’t use a commercial heat gun — which is like a handheld hair dryer — because they’re too large,” says Griffin. “We needed a more compact design. Once we figured it out, it was a lot of fun to write the script for the robot to follow.”

A dress can begin with one design — pintucks across the chest, for example — and be worn for months before having heat re-applied to alter its look. Subsequent applications of heat can tailor the dress further.

Beyond fit and fashion
Efficiently producing garments is a “big challenge” in the fashion industry, according to Gihan Amarasiriwardena ’11, the co-founder and president of Ministry of Supply.

“A lot of times you'll be guessing what a season's style is,” he says. “Sometimes the style doesn't do well, or some sizes don’t sell out. They may get discounted very heavily or eventually they end up going to a landfill.”

“Fast fashion” is a term that describes clothes that are inexpensive, trendy, and easily disposed of by the consumer. They are designed and produced quickly to keep pace with current trends. The 4D Knit Dress, says Tibbits, is the opposite of fast fashion. Unlike the traditional “cut-and-sew” process in the fashion industry, the 4D Knit Dress is made entirely in one piece, which virtually eliminates waste.

“From a global standpoint, you don’t have tons of excess inventory because the dress is customized to your size,” says Tibbits.

McKinlay says she hopes use of this new technology will reduce the amount of waste in inventory that retailers usually have at the end of each season.

“The dress could be tailored in order to adapt to these changes in styles and tastes,” she says. “It may also be able to absorb some of the size variations that retailers need to stock. Instead of extra-small, small, medium, large, and extra-large sizes, retailers may be able to have one dress for the smaller sizes and one for the larger sizes. Of course, these are the same sustainability points that would benefit the consumer.”

The Self-Assembly Lab has collaborated with Ministry of Supply on projects with active textiles for several years. Late last year, the team debuted the 4D Knit Dress at the company’s flagship store in Boston, complete with a robotic arm working its way around a dress as customers watched. For Amarasiriwardena, it was an opportunity to gauge interest and receive feedback from customers interested in trying the dress on.

“If the demand is there, this is something we can create quickly” unlike the usual design and manufacturing process, which can take years, says Amarasiriwardena.

Griffin and McKinlay were on hand for the demonstration and pleased with the results. For Griffin, with the “technical barriers” overcome, he sees many different avenues for the project.

“This experience leaves me wanting to try more,” he says.

McKinlay too would love to work on more styles.

“I hope this research project helps people rethink or reevaluate their relationship with clothes,” says McKinlay. “Right now when people purchase a piece of clothing it has only one ‘look.’ But, how exciting would it be to purchase one garment and reinvent it to change and evolve as you change or as the seasons or styles change? I'm hoping that's the takeaway that people will have.”

Source:

Maria Iacobo | Olivia Mintz | School of Architecture and Planning, MIT Department of Architecture

Nordic cooperation on circular innovation focusing on workwear Photo: Sven, pixabay
16.04.2024

Nordic cooperation on circular innovation focusing on workwear

The University of Borås, Aalborg University Business School and Circular Innovation Lab have just started the 'North-South Circular Value Chains Within Textiles' project - an explorative project that aims at bridging textile brands in the Nordics with a strong focus on sustainability with innovative producers in the South.

Focus areas are Circular Value Chains (CVCs), Circular and resource-efficient textiles economy, Workwear and technical clothing, Sectors such as construction, energy, electronics and IT, plastics, textiles, retail and metals.

Made possible by a grant from the Interreg ÖKS programme, the first step is to create a specific economic, legal and technological framework allowing Scandinavian workwear companies to enter into close collaboration on circular solutions in the overall textile value chain and to prepare, and adapt their global value chains to the upcoming EU regulations on circular economy.

The University of Borås, Aalborg University Business School and Circular Innovation Lab have just started the 'North-South Circular Value Chains Within Textiles' project - an explorative project that aims at bridging textile brands in the Nordics with a strong focus on sustainability with innovative producers in the South.

Focus areas are Circular Value Chains (CVCs), Circular and resource-efficient textiles economy, Workwear and technical clothing, Sectors such as construction, energy, electronics and IT, plastics, textiles, retail and metals.

Made possible by a grant from the Interreg ÖKS programme, the first step is to create a specific economic, legal and technological framework allowing Scandinavian workwear companies to enter into close collaboration on circular solutions in the overall textile value chain and to prepare, and adapt their global value chains to the upcoming EU regulations on circular economy.

Recently, the consortium partners convened for an initial meeting at The Swedish School of Textiles to discuss the project framework, which is a feasibility study intended to lead to a multi-year project involving workwear companies in the Öresund-Kattegat-Skagerrak (ÖKS) region, including their supply chains in Asia.

Kim Hjerrild, Strategic Partnerships Lead at the Danish think tank Circular Innovation Lab, Copenhagen, explained: "The goal is to assist workwear producers in Denmark, Sweden, and Norway in becoming more sustainable through circular product design, production, and service concepts. We are pleased to have The Swedish School of Textiles lead the project as they have a strong tradition of collaborating with textile companies."

Complex branch
The decision to focus specifically on workwear stems from it being a complex part of the textile industry, demanding strict standards, certifications, safety aspects, and specific functions depending on the application area, such as specific high-performance environments, healthcare, and hospitality. "To future-proof their operations, companies need to become more resource efficient and circular by producing durable and long lasting workwear that can be repaired and reused. Additionally, they must reduce their carbon footprint per product, as well as minimize problematic chemical usage, and increasingly use recycled materials" explained Kim Hjerrild.

Wants to provide companies with tools and knowledge
Apoorva Arya, founder and CEO of Circular Innovation Lab, elaborates: "Our first and primary goal is to equip Scandinavian workwear companies with tools and knowledge in order to comply with the upcoming EU directives and policies. This includes regulations on product-specific design requirements to labour conditions for employees, human rights, all the way from production to third-party suppliers. Ensuring these companies, especially their suppliers, can transition to a circular supply chain, and navigate the legislative landscape, while guaranteeing competitiveness in the global market."

Focus on new structures
Rudrajeet Pal, Professor of Textile Management at The Swedish School of Textiles, is pleased that the university can be the coordinator of the project. "From the perspective of my research group, this
is incredibly interesting given the focus on the examination and development of ‘new’ supply chain and business model structures that would enable sustainable value generation in textile enterprises, industry, and for the environment and society at large. We have conducted several projects where such global north-south value chain focus is eminent, and this time particularly in workwear companies’ value chain between Scandinavia and Asia. We are delighted to contribute expertise and our experience of working internationally."

About the pre-project North-South Circular Value Chains Within Textiles, NSCirTex
The project aims to support the circular transition in the Nordics by setting up a shared governance model to enable pre-competitive collaboration and the design of circular value chains between Scandinavian workwear companies in the ÖKS-region and producers in India, Bangladesh, Vietnam, and Türkiye.

The next step is to achieve a multi-year main project where workwear companies with their suppliers in Asian countries, can test tailored models for shared governance as a way to develop practical circular solutions, such as post-consumer recycling, circular material procurement, develop safe and resource efficient circular products, enhance social sustainability and due diligence, among others. The main project will thus develop solutions to reduce material footprint, and resource usage while generating both commercial viability and prepare for new regulation, reporting, and accountability.

Partners in this feasibility study: University of Borås, Aalborg University Business School, and Circular Innovation Lab. The feasibility study is funded by the EU through the Interreg Öresund-Kattegat-Skagerrak European Regional Development Fund.

Source:

University of Borås, Solveig Klug

textile waste AI generated image: Pete Linforth, Pixabay
02.04.2024

The Future of Circular Textiles: New Cotton Project completed

In a world first for the fashion industry, in October 2020 twelve pioneering players came together to break new ground by demonstrating a circular model for commercial garment production. Over more than three years, textile waste was collected and sorted, and regenerated into a new, man-made cellulosic fiber that looks and feels like cotton – a “new cotton” – using Infinited Fiber Company’s textile fiber regeneration technology.
 

In a world first for the fashion industry, in October 2020 twelve pioneering players came together to break new ground by demonstrating a circular model for commercial garment production. Over more than three years, textile waste was collected and sorted, and regenerated into a new, man-made cellulosic fiber that looks and feels like cotton – a “new cotton” – using Infinited Fiber Company’s textile fiber regeneration technology.
 
The pioneering New Cotton Project launched in October 2020 with the aim of demonstrating a circular value chain for commercial garment production. Through-out the project the consortium worked to collect and sort end-of-life textiles, which using pioneering Infinited Fiber technology could be regenerated into a new man-made cellulosic fibre called Infinna™ which looks and feels just like virgin cotton. The fibres were then spun into yarns and manufactured into different types of fabric which were designed, produced, and sold by adidas and H&M, making the adidas by Stella McCartney tracksuit and a H&M printed jacket and jeans the first to be produced through a collaborative circular consortium of this scale, demonstrating a more innovative and circular way of working for the fashion industry.
 
As the project completes in March 2024, the consortium highlights eight key factors they have identified as fundamental to the successful scaling of fibre-to-fibre recycling.

The wide scale adoption of circular value chains is critical to success
Textile circularity requires new forms of collaboration and open knowledge exchange among different actors in circular ecosystems. These ecosystems must involve actors beyond traditional supply chains and previously disconnected industries and sectors, such as the textile and fashion, waste collection and sorting and recycling industries, as well as digital technology, research organisations and policymakers. For the ecosystem to function effectively, different actors need to be involved in aligning priorities, goals and working methods, and to learn about the others’ needs, requirements and techno-economic possibilities. From a broader perspective, there is also a need for a more fundamental shift in mindsets and business models concerning a systemic transition toward circularity, such as moving away from the linear fast fashion business models. As well as sharing knowledge openly within such ecosystems, it also is important to openly disseminate lessons learnt and insights in order to help and inspire other actors in the industry to transition to the Circular Economy.

Circularity starts with the design process
When creating new styles, it is important to keep an end-of-life scenario in mind right from the beginning. As this will dictate what embellishments, prints, accessories can be used. If designers make it as easy as possible for the recycling process, it has the bigger chance to actually be feedstock again. In addition to this, it is important to develop business models that enable products to be used as long as possible, including repair, rental, resale, and sharing services.

Building and scaling sorting and recycling infrastructure is critical
In order to scale up circular garment production, there is a need for technological innovation and infrastructure development in end-of-use textiles collection, sorting, and the mechanical pre-processing of feedstock. Currently, much of the textiles sorting is done manually, and the available optical sorting and identification technologies are not able to identify garment layers, complex fibre blends, or which causes deviations in feedstock quality for fibre-to-fibre recycling. Feedstock preprocessing is a critical step in textile-to-textile recycling, but it is not well understood outside of the actors who actually implement it. This requires collaboration across the value chain, and it takes in-depth knowledge and skill to do it well. This is an area that needs more attention and stronger economic incentives as textile-to-textile recycling scales up.

Improving quality and availability of data is essential
There is still a significant lack of available data to support the shift towards a circular textiles industry. This is slowing down development of system level solutions and economic incentives for textile circulation. For example, quantities of textiles put on the market are often used as a proxy for quantities of post-consumer textiles, but available data is at least two years old and often incomplete. There can also be different textile waste figures at a national level that do not align, due to different methodologies or data years. This is seen in the Dutch 2018 Mass Balance study reports and 2020 Circular Textile Policy Monitoring Report, where there is a 20% difference between put on market figures and measured quantities of post-consumer textiles collected separately and present in mixed residual waste. With the exception of a few good studies such as Sorting for Circularity Europe and ReFashion’s latest characterization study, there is almost no reliable information about fibre composition in the post-consumer textile stream either. Textile-to-textile recyclers would benefit from better availability of more reliable data. Policy monitoring for Extended Producer Responsibility schemes should focus on standardising reporting requirements across Europe from post-consumer textile collection through their ultimate end point and incentivize digitization so that reporting can be automated, and high-quality textile data becomes available in near-real time.

The need for continuous research and development across the entire value chain
Overall, the New Cotton Project’s findings suggest that fabrics incorporating Infinna™ fibre offer a more sustainable alternative to traditional cotton and viscose fabrics, while maintaining similar performance and aesthetic qualities. This could have significant implications for the textile industry in terms of sustainability and lower impact production practices. However, the project also demonstrated that the scaling of fibre-to-fibre recycling will continue to require ongoing research and development across the entire value chain. For example, the need for research and development around sorting systems is crucial. Within the chemical recycling process, it is also important to ensure the high recovery rate and circulation of chemicals used to limit the environmental impact of the process. The manufacturing processes also highlighted the benefit for ongoing innovation in the processing method, requiring technologies and brands to work closely with manufacturers to support further development in the field.

Thinking beyond lower impact fibres
The New Cotton Project value chain third party verified LCA reveals that the cellulose carbamate fibre, and in particular when produced with a renewable electricity source, shows potential to lower environmental impacts compared to conventional cotton and viscose. Although, it's important to note that this comparison was made using average global datasets from Ecoinvent for cotton and viscose fibres, and there are variations in the environmental performance of primary fibres available on the market. However, the analysis also highlights the importance of the rest of the supply chain to reduce environmental impact. The findings show that even if we reduce the environmental impacts by using recycled fibres, there is still work to do in other life cycle stages. For example; garment quality and using the garment during their full life span are crucial for mitigating the environmental impacts per garment use.
          
Citizen engagement
The EU has identified culture as one of the key barriers to the adoption of the circular economy within Europe. An adidas quantitative consumer survey conducted across three key markets during the project revealed that there is still confusion around circularity in textiles, which has highlighted the importance of effective citizen communication and engagement activities.

Cohesive legislation
Legislation is a powerful tool for driving the adoption of more sustainable and circular practices in the textiles industry. With several pieces of incoming legislation within the EU alone, the need for a cohesive and harmonised approach is essential to the successful implementation of policy within the textiles industry. Considering the link between different pieces of legislation such as Extended Producer Responsibility and the Ecodesign for Sustainable Products Regulation, along with their corresponding timeline for implementation will support stakeholders from across the value chain to prepare effectively for adoption of these new regulations.

The high, and continuously growing demand for recycled materials implies that all possible end-of-use textiles must be collected and sorted. Both mechanical and chemical recycling solutions are needed to meet the demand. We should also implement effectively both paths; closed-loop (fibre-to-fibre) and open -loop recycling (fibre to other sectors). There is a critical need to reconsider the export of low-quality reusable textiles outside the EU. It would be more advantageous to reuse them in Europe, or if they are at the end of their lifetime recycle these textiles within the European internal market rather than exporting them to countries where demand is often unverified and waste management inadequate.

Overall, the learnings spotlight the need for a holistic approach and a fundamental mindset shift in ways of working for the textiles industry. Deeper collaboration and knowledge exchange is central to developing effective circular value chains, helping to support the scaling of innovative recycling technologies and increase availability of recycled fibres on the market. The further development and scaling of collecting and sorting, along with the need to address substantial gaps in the availability of quality textile flow data should be urgently prioritised. The New Cotton Project has also demonstrated the potential of recycled fibres such as Infinna™ to offer a more sustainable option to some other traditional fibres, but at the same time highlights the importance of addressing the whole value chain holistically to make greater gains in lowering environmental impact. Ongoing research and development across the entire value chain is also essential to ensure we can deliver recycled fabrics at scale in the future.

The New Cotton Project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101000559.

 

Source:

Fashion for Good

A quick check with a smartphone, and the integrated spectrum analyzer recognizes the fabric the garment is made from. Photo: © Fraunhofer IPMS. A quick check with a smartphone, and the integrated spectrum analyzer recognizes the fabric the garment is made from.
10.10.2023

Checking clothing using a smartphone, AI and infrared spectroscopy

Researchers at Fraunhofer have developed an ultra-compact near-infrared spectrometer suitable for recognizing and analyzing textiles. Mixed fabrics can also be reliably identified through the combination of imaging, special AI (artificial intelligence) algorithms and spectroscopy. The technology could be used to optimize recycling old clothing, so old apparel could be sorted according to type. A highly miniaturized version of the system can even fit into a smartphone. This could lead to a host of new applications for end-users in everyday life — from checking clothes when out shopping to detecting counterfeits.

Researchers at Fraunhofer have developed an ultra-compact near-infrared spectrometer suitable for recognizing and analyzing textiles. Mixed fabrics can also be reliably identified through the combination of imaging, special AI (artificial intelligence) algorithms and spectroscopy. The technology could be used to optimize recycling old clothing, so old apparel could be sorted according to type. A highly miniaturized version of the system can even fit into a smartphone. This could lead to a host of new applications for end-users in everyday life — from checking clothes when out shopping to detecting counterfeits.

Infrared spectrometers are powerful measuring instruments when it comes to non-destructive analysis of organic materials. The Fraunhofer Institute for Photonic Microsystems IPMS in Dresden has recently developed a spectral analyzer system that recognizes and analyzes textile fabrics. The system can also reliably recognize mixed fabrics. Possible applications range from checking fabrics when out shopping to cleaning garments correctly, and even sustainable, sorted recycling. The spectrometer is so tiny, it can be integrated into a smartphone.

Researchers at Fraunhofer rely on near-infrared (NIR) spectroscopy to achieve the required reliability and accuracy when identifying textiles. The system works for wavelengths between 950 and 1900 nanometers, which is close to the visible spectrum. Advantages of near-infrared technology include being easy to use and having a wide range of applications. “We combine NIR spectroscopy with imaging and AI to achieve higher accuracy when recognizing and analyzing objects,” explains Dr. Heinrich Grüger, research scientist in the Sensoric Micromodules department at Fraunhofer IPMS.

How textile analysis works
Firstly, a conventional camera module captures an image of the garment. The AI selects a specific point from the fabric’s image data to be examined by the spectral analyzer module. Light reflected from the fabric is captured by the spectrometer module. There, it passes through an entrance slit, is transformed into parallel light beams using a collimating mirror and projected onto a grating using a scanning mirror. Depending on the angle of incidence and exit, the grating splits the light beams into different wavelengths. Light reflected from the grating is directed by the scanner mirror to a detector which captures the light as an electrical signal. An A/D converter then digitizes these signals, which are subsequently analyzed in the signal processor. The resulting spectrometric profile for the textile fabric reveals which fibers it is made from by comparing to a reference database.“ The optical resolution is 10 nanometers. This high resolution means the NIR spectrometer can also use AI to identify mixed fabrics such as items of clothing made from polyester and cotton,” says Grüger. Measuring just 10 mm × 10 mm and being 6.5 mm thick, the system is so compact it could easily be integrated into a standard smartphone.

Recycling old clothing
Grüger sees an important application for the AI-controlled spectrometer when it comes to recycling. According to the Federal Statistical Office of Germany, approximately 176,200 tons of textile and clothing waste was collected from private homes in Germany in 2021. NIR spectroscopy could improve recycling efficiency and reduce the mountain of old clothing. This would enable companies that recycle old clothing to sort it more efficiently and faster. Textiles that are still in one piece, for instance, go to the second-hand trade. Damaged textiles are sorted for recycling, and the fibers they are made from, such as linen, silk, cotton or lyocell, can be reused. Severely soiled textiles would be incinerated or processed into insulation mats, for example. Spectroscopic identifies and sorts textiles more accurately and much faster than a human can.

If NIR spectroscopy was to be integrated into a smartphone, end-users might also benefit from the Fraunhofer institute’s technology. When buying clothes, a quick check with a smartphone reveals whether that expensive silk scarf is genuinely made from silk, or whether that exclusive dress from the fashion label is not instead a counterfeit, exposed through an alternative mix of fabrics. And should the label with the cleaning instructions no longer be legible, the smartphone has a textile scanner to identify the fabric and so determine the appropriate wash cycle.

Food check and dermatology
Researchers at Fraunhofer IPMS can even envisage applications beyond the textile industry. Smartphones fitted with spectrometers might be used to provide information about the quality of groceries such as fruit and vegetables when out shopping. The technology might conceivably also be used to examine skin. A quick scan with the cell phone spectrometer could identify particularly dry or greasy patches. Perhaps applications in medical diagnostics might even be conceivable — examining patches of skin where a melanoma is suspected, for example — but this would need professional involvement too.

Source:

Fraunhofer Institute for Photonic Microsystems

Carbon U Profil (c) vombaur GmbH & Co. KG
19.09.2023

"After all, a spaceship is not made off the peg."

Interview with vombaur - pioneers in special textiles
Technical narrow textiles, custom solutions, medium-sized textile producer and development partner for filtration textiles, composite textiles and industrial textiles: vombaur. Digitalisation, sustainability, energy prices, pioneering work and unbroken enthusiasm – Textination spoke to two passionate textile professionals: Carl Mrusek, Chief Sales Officer (CSO), and Johannes Kauschinger, Sales Manager for Composites and Industrial Textiles, at vombaur GmbH, which, as well as JUMBO-Textil, belongs to the Textation Group.
 

Interview with vombaur - pioneers in special textiles
Technical narrow textiles, custom solutions, medium-sized textile producer and development partner for filtration textiles, composite textiles and industrial textiles: vombaur. Digitalisation, sustainability, energy prices, pioneering work and unbroken enthusiasm – Textination spoke to two passionate textile professionals: Carl Mrusek, Chief Sales Officer (CSO), and Johannes Kauschinger, Sales Manager for Composites and Industrial Textiles, at vombaur GmbH, which, as well as JUMBO-Textil, belongs to the Textation Group.
 
If you look back at your history and thus to the beginnings of the 19th century, you will see a ribbon manufactory and, from 1855, a production of silk and hat bands. Today you produce filtration textiles, industrial textiles and composites textiles. Although you still produce narrow textiles today, the motto "Transformation as an opportunity" seems to be a lived reality at vombaur.
 
Carl Mrusek, Chief Sales Officer: Yes, vombaur has changed a few times in its almost 220-year history.  Yet the company has always remained true to itself as a narrow textiles manufacturer. This testifies to the willingness of the people in the company to change and to their curiosity. Successful transformation is a joint development, there is an opportunity in change. vombaur has proven this many times over the past almost 220 years: We have adapted our product portfolio to new times, we have built new factory buildings and new machinery, we have introduced new materials and developed new technologies, we have entered into new partnerships – as most recently as part of the Textation Group. We are currently planning our new headquarters. We are not reinventing ourselves, but we will go through a kind of transformation process with the move into the brand new, climate-friendly high-tech space.

 

Could you describe the challenges of this transformation process?
 
Johannes Kauschinger, Sales Manager for Composites and Industrial Textiles: A transformation usually takes place technically, professionally, organisationally and not least – perhaps even first and foremost – culturally. The technical challenges are obvious. Secondly, in order to manage and use the new technologies, appropriate expertise is needed in the company. Thirdly, every transformation entails new processes, teams and procedures have to be adapted. And finally, fourthly, the corporate culture also changes. Technology can be procured, expertise acquired, the organisation adapted. Time, on the other hand, cannot be bought. I therefore consider the greatest challenge to be the supply of human resources: In order to actively shape the transformation and not be driven by development, we need sufficient skilled workers.

 

Visiting your website, the claim "pioneering tech tex" immediately catches the eye. Why do you see your company as a pioneer, and what are vombaur's groundbreaking or pioneering innovations?

Carl Mrusek: With our unique machine park, we are pioneers for seamless circular woven textiles. And as a development partner, we break new ground with every order. We are always implementing new project-specific changes: to the end products, to the product properties, to the machines. It happens regularly that we adapt a weaving machine for a special seamless woven shaped textile, sometimes even develop a completely new one.
 
With our young, first-class and growing team for Development and Innovation led by Dr. Sven Schöfer, we repeatedly live up to our promise of "pioneering tech tex" by developing special textile high-tech solutions with and for our customers. At the same time, we actively explore new potentials. Most recently with sustainable materials for lightweight construction and research into novel special filtration solutions, for example for the filtration of microplastics. A state-of-the-art textile technology laboratory is planned for this team in the new building.

 

The development of technical textiles in Germany is a success story. From a global perspective, we manage to succeed with mass-produced goods only in exceptional cases. How do you assess the importance of technical textiles made in Germany for the success of other, especially highly technological industries?

Carl Mrusek: We see the future of industry in Europe in individually developed high-tech products. vombaur stands for high-quality, reliable and durable products and made-to-order products. And it is precisely this – custom-fit products, instead of surplus and throwaway goods – that is the future for sustainable business in general.

 

What proportion of your production is generated by being project-based as opposed to a standard range, and to what extent do you still feel comfortable with the term "textile producer"?

Johannes Kauschinger: Our share of special solutions amounts to almost 90 percent. We develop technical textile solutions for our customers' current projects. For this purpose, we are in close contact with the colleagues from our customers' product development departments. Especially in the field of composite textiles, special solutions are in demand. This can be a component for space travel – after all, a spaceship is not manufactured off the peg. We also offer high-quality mass-produced articles, for example in the area of industrial textiles, where we offer round woven tubulars for conveyor belts. In this sense, we are a textile producer, but more than that: we are also a textile developer.

 

In August, Composites Germany presented the results of its 21st market survey. The current business situation is viewed very critically, the investment climate is becoming gloomier and future expectations are turning negative. vombaur also has high-strength textile composites made of carbon, aramid, glass and hybrids in its portfolio. Do you share the assessment of the economic situation as reflected in the survey?

Carl Mrusek: We foresee a very positive development for vombaur because we develop in a very solution-oriented way and offer our customers genuine added value. This is because future technologies in particular require individual, reliable and lightweight components. This ranges from developments for the air taxi to wind turbines. Textiles are a predestined material for the future. The challenge here is also to offer sustainable and recyclable solutions with natural raw materials such as flax and recycled and recyclable plastics and effective separation technologies.

 

There is almost no company nowadays that does not use the current buzzwords such as climate neutrality, circular economy, energy efficiency and renewable energies. What is your company doing in these areas and how do you define the importance of these approaches for commercial success?

Carl Mrusek: vombaur pursues a comprehensive sustainability strategy. Based on the development of our mission statement, we are currently working on a sustainability declaration. Our responsibility for nature will be realised in a very concrete and measurable way through our new building with a green roof and solar system. In our product development, the high sustainability standards – our own and those of our customers – are already flowing into environmentally friendly and resource-saving products and into product developments for sustainable projects such as wind farms or filtration plants.

 

Keyword digitalisation: medium-sized businesses, to which vombaur belongs with its 85 employees, are often scolded for being too reluctant in this area. How would you respond to this accusation?

Johannes Kauschinger:

We often hear about the stack crisis at the present time. Based on this, we could speak of the stack transformation. We, the small and medium-sized enterprises, are transforming ourselves in a number of different dimensions at the same time: Digital transformation, climate neutrality, skilled labour market and population development, independence from the prevailing supply chains. We are capable of change and willing to change. Politics and administration could make it a bit easier for us in some aspects. Key words: transport infrastructure, approval times, energy prices. We do everything we can on our side of the field to ensure that small and medium-sized enterprises remain the driving economic force that they are.

 

 

How do you feel about the term shortage of skilled workers? Do you also take unconventional paths to find and retain talent and skilled workers in such a specialised industry? Or does the problem not arise?

Carl Mrusek: Of course, we are also experiencing a shortage of skilled workers, especially in the industrial sector. But the development was foreseeable. The topic played a major role in the decision to move together with our sister company JUMBO-Textil under the umbrella of the Textation Group. Recruiting and promoting young talent can be better mastered together – for example with cross-group campaigns and cooperations.

 

If you had to describe a central personal experience that has shaped your attitude towards the textile industry and its future, what would it be?

Johannes Kauschinger: A very good friend of my family pointed out to me that we live in an area with a very active textile industry, which at the same time has problems finding young talents. I visited two companies for an interview and already on the tour of each company, the interaction of people, machines and textiles up to the wearable end product was truly impressive. In addition, I was able to learn a profession with a very strong connection to everyday life. To this day, I am fascinated by the wide range of possible uses for textiles, especially in technical applications, and I have no regrets whatsoever about the decision I made back then.

Carl Mrusek: I came into contact with the world of textiles and fashion at a young age. I still remember the first time I went through the fully integrated textile production of a company in Nordhorn with my father Rolf Mrusek. Since then, the subject has never left me. Even before I started my studies, I had made a conscious decision to pursue a career in this industry and to this day I have never regretted it, on the contrary. The diversity of the special solutions developed in the Textation Group fascinates me again and again.

 

vombaur is a specialist for seamless round and shaped woven narrow textiles and is known throughout the industry as a development partner for filtration textiles, composite textiles and industrial textiles made of high-performance fibres. Technical narrow textiles from vombaur are used for filtration – in the food and chemical industries, among others. As high-performance composite materials, they are used, for example, in aircraft construction or medical technology. For technical applications, vombaur develops specially coated industrial textiles for insulation, reinforcement or transport in a wide range of industrial processes – from precision mechanics to the construction industry. The Wuppertal-based company was founded in 1805. The company currently employs 85 people.

Sectors

  • Aviation & Automotive
  • Sports & Outdoor   
  • Construction & Water Management
  • Safety & Protection   
  • Chemistry & Food
  • Plant construction & electronics   
  • Medicine & Orthopaedics

 

Heimtextil Trends 24/25 © SPOTT trends & business for Heimtextil
12.09.2023

Heimtextil Trends 24/25: New Sensitivity

Under the theme "New Sensitivity", textile transformation is the focus of Heimtextil Trends 24/25. Three approaches show ways to a more sensitive world of textiles: the plant-based production of textiles, the support of textile cycles by technology and the bioengineered use of natural ingredients. In addition, Future Materials curates regenerative materials and designs.
 
After last year's focus on circular solutions, Heimtextil Trends 24/25 will once again shed light on transformative textile innovations.
Under the title "New Sensitivity," the focus is on innovations and changes in the composition of textiles, in addition to aesthetic aspects. "In this context, sensitivity means considering the impact on the environment when making a decision or creating a product. Understanding how natural ecosystems work and prioritising balance as the default are key," says Anja Bisgaard Gaede, Founder of SPOTT trends & business.

Under the theme "New Sensitivity", textile transformation is the focus of Heimtextil Trends 24/25. Three approaches show ways to a more sensitive world of textiles: the plant-based production of textiles, the support of textile cycles by technology and the bioengineered use of natural ingredients. In addition, Future Materials curates regenerative materials and designs.
 
After last year's focus on circular solutions, Heimtextil Trends 24/25 will once again shed light on transformative textile innovations.
Under the title "New Sensitivity," the focus is on innovations and changes in the composition of textiles, in addition to aesthetic aspects. "In this context, sensitivity means considering the impact on the environment when making a decision or creating a product. Understanding how natural ecosystems work and prioritising balance as the default are key," says Anja Bisgaard Gaede, Founder of SPOTT trends & business.

How does New Sensitivity translate into something concrete in the lifestyle industry, and what does having a sensitive approach to design and products mean? Also the adoption of Artificial General Intelligence (AGI) is transforming current times. AGI has the potential to bring innovative solutions and help tackle significant challenges, also in the textile industry. However, AGI can have the opposite effect on society. AGI needs the mindset of New Sensitivity that helps simplify complexity, expand creativity, and find unseen solutions, also within the world of textiles.
     
"With Heimtextil Trends 24/25: New Sensitivity, we encourage the textile industry to approach the future with thoughtfulness and consideration. Specifically, we see this change in three different trends for a more sensitive world of textiles: biotechnical, plant-based and technological," Bisgaard Gaede continues.

Plant-based: textiles made from plant crops or plant by-products
Plant-based textiles mean that the fibres are derived from something that grows rather than being synthetically produced. The sustainable advantage of plant-based textiles is that their origin is natural and, therefore, more able to recirculate in existing ecosystems. They can be divided into two groups. The first group of textiles are made from plant crops. New resilient crops like cactus, hemp, abaca, seaweed, and rubber offer new sustainable textile solutions. Because of mechanical extraction, they can grow despite climate changes and require fewer chemicals in their development. The second group consists of textiles made of plant by-products which are leftover raw materials from production such as banana, olive, persimmon and hemp.

Technological: technology and technical solutions transforming textiles
Technology can support the transformation of textiles through the use of different methods: upcycling and recycling of textiles, textile construction, and textile design. Due to decades of production, textiles are now a material available in abundance. Developing technologies for recycling textile waste and methods for upcycling textiles increases the circular usage of existing textiles. Furthermore, old textile construction techniques also offer pathways to sustainable solutions: For instance, using knitting technology for furniture upholstery produces less fabric waste; alternatively, weaving technique allows the creation of several colours using only a few coloured yarns. Textile Design Thinking is another method that addresses critical issues such as energy usage and durability of natural fibres and enhances these through technological textile advancement.

Bio-engineered: engineered to enhance bio-degrading
To a certain degree, bio-engineered textiles represent a fusion of plant-based and technological textiles. Bio-engineering bridges nature and technology and transforms the way textiles are made. They can be divided into two directions: fully bio-engineered and bio-degradable textiles. In the production of fully bio-engineered textiles nature-inspired strategies are adopted. Instead of growing plants and extracting their fibres, textiles are made from the protein, carbohydrates, or bacteria in corn, grass, and cane sugar. Manufacturing involves a bio-molecular process that creates filaments which are made into yarn. The sustainable advantage of bio-engineered textiles is that they can have some of the same functionalities as synthetically produced textiles, while still being biodegradable because of their natural origin. Biodegradable fibres can be added to conventional textiles like polyester to enhance the conventional textiles’ ability to revert to materials found in nature and hence biodegrade in natural environments such as water or soil. Although not biodegrading completely, these bio-enhanced textiles will biodegrade up to 93 % compared to conventional textiles.

Heimtextil Trends 24/25: new colourways
A sensitive approach to colouring methods is expressed by a dynamic yet subtle colour palette created through natural pigments deriving from the earth, as traditional colouring processes are brought to the next level through innovative bioengineering technology. In pursuit of creating colours that evoke emotions in our senses while at the same time respecting our values in protecting the environment, we see colour bacteria growing pigments generating hues with great richness and depth.
               
This New Sensitivity includes acceptance of natural colour flows, as colours may fade with time or morph into new colourways. The colourways for Heimtextil Trends 24/25 were inspired by natural colours deriving from avocado seeds, algae, living bacteria, antique pigments such as raw sienna, and bio-engineered indigo and cochineal. The high black component in most colours allows for widespread application and a greater variety of combinations. The punchy saturated accents enhance our senses as they lift our spirits. In contrast, the grounding neutrals in different shades of grey, terra and even dark purple allow for calmness and tranquillity.

Future Materials: regenerative design
How are regenerative textiles and materials defined? Regenerative design is dedicated to developing holistic creative practices that restore or renew resources, have a positive impact on the environment, and encourage communities to thrive. For Heimtextil 2024, design futures consultancy FranklinTill is curating a global showcase of cutting-edge textiles and materials to illustrate the principles of regenerative design and recognize pioneering designers, producers and manufacturers who are at the forefront of regenerative design.
The Trend Space at Heimtextil in Frankfurt, Germany, January 9-12, 2023, will showcase these pioneering solutions in an inspiring way. In addition, Heimtextil Trends will offer visitors orientation and insights into the future of home and contract textiles in the form of workshops, lectures and other interactive formats.

Source:

Heimtextil, Messe Frankfurt

Photo unsplash.com
05.09.2023

Ananas Anam and TENCEL™ collaborate with Calvin Klein

The search for better, planet-friendly footwear material reveals a solution in one unlikely ingredient: pineapple leaves. This unique textile ingredient is the recent focus of the latest footwear design collaboration between Ananas Anam, TENCEL™ and Calvin Klein, launching Calvin Klein’s first-ever trainer featuring a knitted upper made of PIÑAYARN® blended with TENCEL™ Lyocell fibers.

Known as “The Sustainable Knit Trainer”, the trainers are a timeless closet staple, available in classic colors such as black and off-white and etched with the signature Calvin Klein logo. The PIÑAYARN® knit upper, made of 70% TENCEL™ Lyocell and 30% Anam PALF™ pineapple leaf fiber, is both from botanic origin and bio-based.

The search for better, planet-friendly footwear material reveals a solution in one unlikely ingredient: pineapple leaves. This unique textile ingredient is the recent focus of the latest footwear design collaboration between Ananas Anam, TENCEL™ and Calvin Klein, launching Calvin Klein’s first-ever trainer featuring a knitted upper made of PIÑAYARN® blended with TENCEL™ Lyocell fibers.

Known as “The Sustainable Knit Trainer”, the trainers are a timeless closet staple, available in classic colors such as black and off-white and etched with the signature Calvin Klein logo. The PIÑAYARN® knit upper, made of 70% TENCEL™ Lyocell and 30% Anam PALF™ pineapple leaf fiber, is both from botanic origin and bio-based.

As the fashion sector has begun to realize the negative environmental effects of synthetic materials, a lot of brands have turned towards plant-based materials such as PIÑAYARN®. Using a low-impact manufacturing process, PIÑAYARN® is derived from pineapple leaf waste and involves a water-free spinning process. The addition of TENCEL™ Lyocell, a fiber made from wood pulp obtained from responsibly managed forests and produced using a solvent spinning process that recycles both the solvent and water at a recovery rate of more than 99%, offers full traceability of the TENCEL™ fiber in the final blended yarn.

Melissa Braithwaite, PIÑAYARN® Product Development Manager at Ananas Anam said “The inspiration for PIÑAYARN® came from the need to provide the textile industry with an alternative to overused, often polluting, conventional fibers, such as cotton or polyester. We have an abundance of available raw material within our business, and broadening our product offering means we can valorize more waste, increasing our positive impact on the environment and society.”

Indeed, as the consumer demand for more eco-responsible textile products and footwear grows, so too has the popularity of wood-based fibers as a material alternative. Ananas Anam and TENCEL™’s collaboration with Calvin Klein has been a success in that the physical characteristics and planet-conscious benefits of both PIÑAYARN® and TENCEL™ fibers complement each other perfectly, creating a blended material that is soft and usable for various woven and knitted applications.

For material developers like Ananas Anam seeking the ideal fiber blend partner to create PIÑAYARN®, TENCEL™ Lyocellfibers are celebrated for their versatility and ability to be blended with a wide range of textiles such as hemp, linen and of course Anam PALF™ pineapple leaf fiber, to enhance the aesthetics, performance and functionality of fabrics. Additionally, beyond being used in shoe uppers, TENCEL™ Lyocell fibers can be used in every part of the shoe including the upper fabric, lining, insoles, padding, laces, zipper and sewing thread. TENCEL™ Lyocell can also be used in powder form for use in the outsoles of shoes.

“We are extremely excited about this collaboration with Ananas Anam for the launch of The Sustainable Knit Trainer by Calvin Klein, an eco-responsible and planet-friendly shoe for conscious consumers. This partnership is the perfect example of our commitment to provide education and expertise to support anyone who chooses to improve the environmental and social credentials of their products by using more responsible materials,” said Nicole Schram, Global Business Development Manager at Lenzing.

Source:

Lenzing AG

(c) NC State
07.08.2023

Wearable Connector Technology - Benefits to Military, Medicine and beyond

What comes to mind when you think about “wearable technology?” In 2023, likely a lot, at a time when smartwatches and rings measure heart rates, track exercise and even receive text messages. Your mind might even drift to that “ugly” light-up sweater or costume you saw last Halloween or holiday season.

At the Wilson College of Textiles, though, researchers are hard at work optimizing a truly new-age form of wearable technology that can be proven useful in a wide range of settings, from fashion and sports to augmented reality, the military and medicine.

Currently in its final stages, this grant-funded project could help protect users in critical situations, such as soldiers on the battlefield and patients in hospitals, while simultaneously pushing the boundaries of what textiles research can accomplish.

What comes to mind when you think about “wearable technology?” In 2023, likely a lot, at a time when smartwatches and rings measure heart rates, track exercise and even receive text messages. Your mind might even drift to that “ugly” light-up sweater or costume you saw last Halloween or holiday season.

At the Wilson College of Textiles, though, researchers are hard at work optimizing a truly new-age form of wearable technology that can be proven useful in a wide range of settings, from fashion and sports to augmented reality, the military and medicine.

Currently in its final stages, this grant-funded project could help protect users in critical situations, such as soldiers on the battlefield and patients in hospitals, while simultaneously pushing the boundaries of what textiles research can accomplish.

“The goals set for this research are quite novel to any other literature that exists on wearable connectors” says Shourya Dhatri Lingampally, Wilson College of Textiles graduate student and research assistant involved in the project alongside Wilson College Associate Professor Minyoung Suh.

Ongoing since the fall of 2021, Suh and Lingampally’s work focuses on textile-integrated wearable connectors, a unique, high-tech sort of “bridge” between flexible textiles and external electronic devices. At its essence, the project aims to improve these connectors’ Technology Readiness Level — a key rating used by NASA and the Department of Defense used to assess a particular technology’s maturity.

To do this, Lingampally and her colleagues’ research examines problems that have, in the past, affected the performance of wearable devices.

Sure, these advances may benefit fashion, leading to eccentric shirts, jackets, or accessories — “to light up or change its color based on the wearer’s biometric data,” Lingampally offers — the research has roots in a much deeper mission.

Potential benefits to military, medicine and beyond
The project is funded through more than $200,000 in grant money from Advanced Functional Fabrics of America (AFFOA), a United States Manufacturing Innovation Institute (MII) located in Cambridge, Massachusetts. The mission of AFFOA is to support domestic manufacturing capability to support new technical textile products, such as textile-based wearable technologies.

A key purpose of the research centers around improving the functionality of wearable monitoring devices with which soldiers are sometimes outfitted to monitor the health and safety of their troops remotely.

Similar devices allow doctors and other medical personnel to remotely monitor the health of patients even while away from the bedside.

Though such technology has existed for years, it’s too often required running wires and an overall logistically-unfriendly design. That could soon change.

“We have consolidated the electronic components into a small snap or buckle, making the circuits less obtrusive to the wearer,” Lingampally says, explaining the team’s innovations, which include 3D printing the connector prototypes using stereolithography technology.

“We are trying to optimize the design parameters in order to enhance the electrical and mechanical performance of these connectors,” she adds.

To accomplish their goals, the group collaborated with NC State Department of Electrical and Computer Engineering Assistant Research Professor James Dieffenderfer. The team routed a variety of electrical connections and interconnects like conductive thread, epoxy and solder through textile materials equipped with rigid electronic devices.

They also tested the components for compatibility with standard digital device connections like USB 2.0 and I2C.

Ultimately, Lingampally hopes their work will make wearable technology not only easier and more comfortable to use, but available at a lower price, too.

“I would like to see them scaled, to be mass manufactured, so they can be cost efficient for any industry to use,” she explains.

In a bigger-picture sense, though, her team’s work is reinforcing the far-reaching boundaries of what smart textile research can accomplish; a purpose that stretches far beyond fashion or comfort.

Pushing the boundaries of textiles research
Suh and Lingampally’s work is just the latest breakthrough research originating from the Wilson College of Textiles that’s aimed at solving critical problems in the textile industry and beyond.

“The constant advancements in technology and materials present immense potential for the textile industry to drive positive change across a range of fields from fashion to healthcare and beyond,” Lingampally, a graduate student in the M.S. Textiles program, says, noting the encouragement she feels in her program to pursue innovation and creativity in selecting and advancing her research.

Additionally, in the fiber and polymer science doctoral program, which Suh does research with, candidates focus their research on a seemingly endless array of STEM topics, ranging from forensics to medical textiles, nanotechnology and, indeed, smart wearable technology (just to name a few).

In this case, Suh says, the research lent itself to “unexpected challenges” that required intriguing adaptations “at every corner.” But, ultimately, it led to breakthroughs not previously seen in the wearable technology industry, attracting interest from other researchers outside the university, and private companies, too.

“This project was quite exploratory by nature as there hasn’t been any prior research aiming to the same objectives,” Suh says.

Meanwhile, the team has completed durability and reliability testing on its textile-integrated wearable connectors. Eventually, the group would like to increase the sample size for testing to strengthen and validate the findings. The team also hopes to evaluate new, innovative interconnective techniques, as well as other 3D printing techniques and materials as they work to further advance wearable technologies.

Source:

North Carolina State University, Sean Cudahy

Functional textiles – an alternative to antibiotics University of Borås
04.07.2023

Functional textiles – an alternative to antibiotics

Tuser Biswas conducts research that aims to develop modern medical textiles that are good for both the environment and human health. Textiles with antimicrobial properties could reduce the use of antibiotics.

Tuser Biswas conducts research that aims to develop modern medical textiles that are good for both the environment and human health. Textiles with antimicrobial properties could reduce the use of antibiotics.

His work involves research and teaching activities within the area of textile material technology. The current research involves resource-efficient inkjet printing of functional materials on various textile surfaces for advanced applications.
 
The conventional textile industry devours natural resources in the form of water, energy, and chemicals. A more resource-efficient way to produce textiles is with ink jet printing. Tuser Biswas, who recently defended his doctoral thesis in Textile Material Technology, seeks to develop methods for functional textiles. He has shown that it is possible to print enzymes on textiles. These are proteins that function as catalysts in the body, as they set chemical processes in motion without themselves changing. They could, for example, be used in medical textiles with antimicrobial properties or to measure biological or chemical reactions.

“Ever since the industrial revolution, our society has used an abundance of synthetic and harsh chemicals. Our research works to replace these chemicals with environmentally friendly and bio-based materials,” said Tuser Biswas.
 
Promising results with enzymes on textiles
Developing a good enzyme ink was not entirely easy and it took a number of attempts before he finally, to his great joy, had successful results. Tuser Biswas explained that the most important result is to show how a printed enzyme could bind another enzyme to the surface of a fabric. Although the activity of the enzymes decreased by 20-30 percent after printing, the results are still promising for future applications. At the same time, the work has provided new knowledge about many fundamental questions about printing biomaterials on fabric.

“Before starting the project, we found several related studies that focused on producing a finished product. But we wanted to study the fundamental challenges of this subject, and now we know how to make it work,” said Tuser Biswas.

He is now seeking funding to continue researching the subject and has so far received a grant from the Sjuhärad Savings Bank Foundation. During the Days of Knowledge event in April 2023, he presented his research to representatives from the City of Borås and business, the Sjuhärad Savings Bank Foundation, and the University of Borås.
     
Medical textiles instead of antibiotics
Tuser Biswas hopes that continued research in textile technology can provide alternatives to using antibiotics. With increasing antibiotic resistance, it is an important issue not only locally but worldwide.

“Instead of treating the patient with a course of antibiotics, one can act preventively and more effectively by damaging the bacteria on the surface where they start to grow. In a wound dressing, for example. Nanoparticle-based antimicrobials can reduce growth effectively. It is possible as nanoparticles can interact better with the bacterial membrane and reach the target more easily than conventional antimicrobials.”

Source:

Lina Färm. Translation by Eva Medin. University of Borås