From the Sector

Archroma, specialist in chemicals towards sustainable solutions, Kipaş Denim, a Turkish company with a focus on integrated textile production, and Jeanologia, a sustainable textile solutions company, are collaborating to pioneer a new denim finishing process for enhanced aesthetic appeal and greater sustainability.

Combining their advanced technologies, the three textile innovators are behind the launch of Kipaş Denim’s new Contra Denim concept – a breakthrough in denim dyeing and finishing that enables brands to create stunning and long-lasting distressed looks and designs effects, including intricate patterns, whiskering and fades, through cleaner processes that save water and energy and reduce greenhouse gas emissions.

Denim has traditionally been challenging to produce, especially for black and indigo fabric with a worn or distressed look, requiring significant water usage, harmful chemicals and intensive manual labor. The Contra Denim collection is laser- and laundry-friendly, with colors that are deep and durable. Stunning wash-down vintage effects and high contrasts are achieved via washing or laser techniques.

Contra Denim is based on Archroma’s DENIM HALO, a new approach to denim production that incorporates resource-saving pretreatment that includes DIRSOL® RD and dyeing processes to produce easy-wash laser-friendly denim. It delivers a substantially reduced environmental footprint compared to the industry-standard denim finishing process while reducing yarn shrinkage and improving garment tensile strength.

The Contra Denim’s vintage looks are achieved with advanced laser marking technology from Jeanologia. Thanks to the combination of Archroma and Jeanologia technologies, manual hand scraping or potassium permanganate spraying harmful for workers and the environment are completely eliminated.

Fernando Cardona, Brain Box Team Manager, Jeanologia, said: “As a purpose-driven textile technology company, we take pride in working with partners to accompany them through their transformational processes. We are delighted to work with industry leaders such as Archroma and Kipaş Denim, who are at the forefront of responsible denim production.”

Initially producing a ContraBlack Denim collection, Kipaş Denim has now extended the Contra line to classic indigo and other colors from the DIRESUL® RDT range.

The ContraBlack collection earned a Jeanologia Environmental Impact Measurement (EIM) score of 11 on stone wash versus the ring dyeing market standard score of 67. This confirms the low impact of the ContraBlack range in both water and energy consumption, chemical impact and workers’ health.

CARBIOS and SASA, a manufacturer of polyester, fiber, filament yarn, polyester-based polymers, specialty polymers and intermediates, have signed a Letter of Intent (LOI) to cooperate through SASA’s potential acquisition of a license for CARBIOS’ unique PET biorecycling technology. This licensing agreement would allow SASA to construct and operate an enzymatic depolymerization plant in Adana, Turkey, with a capacity of 100,000 tons per year of prepared PET waste, and would give access to a circular recycling technology, enabling the production of polyester pellets, fibers and textiles from various waste sources, including polyester textile waste. With CARBIOS' biorecycling technology, SASA would diversify its offering to meet the growing global demand for sustainable materials in the textile industry, primarily catering to the European market.

Less than 1% of textile waste is currently recycled into new textile fibers^[1].  With European regulations moving towards the incorporation of more recycled content (at least 20% of recycled fibers by 2030), demand for recycled polyester in the EU is anticipated to increase, naturally positioning Turkey as a major producer alongside Asian countries.  In this context, SASA is striving to become the largest supplier of high value-added polyester in the region and beyond. To achieve this, SASA aims to introduce recycling as part of its activities, which already encompass the whole value chain from PET production to fiber and textile conversion. CARBIOS’ PET biorecycling technology plays an important part in SASA’s ongoing transformation strategy, which includes back integration, capacity expansion, even higher competitiveness, as well as circularity.

CARBIOS has developed a enzymatic depolymerization technology that enables efficient and solvent-free recycling of PET plastic and textile waste into virgin-like products. CARBIOS has ambitious plans to become a leading technology provider in the recycling of PET by 2035. After the recent announcement of a joint Letter of Intent with Zhink Group in China, this new Letter of Intent for a potential licensing agreement in Europe confirms global traction for CARBIOS biorecycling technology, and marks another significant step in the international roll-out of its licensing model. In addition to the world’s first industrial-scale enzymatic PET recycling plant which is currently under construction in Longlaville, France, this potential plant in Turkey would process PET waste that is currently not recyclable using conventional recycling technologies.

[1] System Circularity and Innovative Recycling of Textiles | Circular Cities and Regions Initiative (europa.eu)

Fibre Extrusion Technology Ltd (FET) of Leeds, UK has continued the ongoing process of strengthening its Research & Development team. The latest addition is Charlotte Witts, who is currently studying for a degree in Chemistry at Nottingham University and will work at FET for a 12-month period. She will continue her studies in chemistry as distant learning modules whilst also working at FET. FET designs, develops and manufactures extrusion equipment for a wide range of high value textile material applications worldwide.

“I’m really excited to be joining the team at FET and getting stuck in to the role. Sustainability is a big passion of mine, so I’m looking forward to learning how FET develops new technologies that support the textile industry in this endeavour. I hope that my previous studies within this area will help to foster new ideas.”

Furthermore, FET has a development policy of bringing young people into the industry and has invested heavily in recent years to this end, helping to address the skills gap in the UK textile industry. The company’s R&D department comprises ten scientists and engineers who work closely with customers on process development and new product trials.

Charlotte Witts will be focusing on the wet spinning process which is fortuitous as FET has just finished commissioning their own in-house low viscosity wet spinning system. Over the coming year she will focus on spinning a number of bio-sourced polymers (e.g. alginate, chitosan, gelatin, recombinant proteins). These materials require a strong scientific understanding of the underlying chemistry to successfully produce a high-quality yarn. Furthermore, FET regularly gets customer requests to conduct trial work on these materials to de-risk the equipment purchase process.

The current European Football Championships 2024 in Germany will be played on natural turf, which is very costly to maintain, does not tolerate high frequency of use and has a limited service life of only 6 months in some cases. Artificial turf is easier to maintain and correspondingly popular. In Germany, there are estimated to be more than 5,000 artificial turf pitches and as many as 25,500 across the EU. The drawback: the enormous annual emission of microplastics in the form of infill material, the high CO2 impact and the not environmentally friendly disposal. Researchers in Aachen presented a sustainable alternative: BioTurf is a new artificial turf system made from bio-based polymers that no longer requires polymer infill material!

"Every year, around 500 kilograms of plastic granules are produced per artificial turf pitch, which have to be refilled as infill. This also corresponds to the amount that potentially enters the environment as microplastics per sports pitch," explains Dr Claudia Post from TFI. With an estimated 25,000 artificial turf pitches in the EU, artificial turf in Europe alone produces 12,750 tonnes of microplastics that end up in the environment every year! The TFI - Institut für Bodensysteme an der RWTH Aachen e.V., Institute for Research, Testing and Certification in Europe for Indoor Building Products, has developed the innovative artificial turf system together with the ITA (Institute for Textile Technology at RWTH Aachen University) and in collaboration with the company Morton Extrusionstechnik (MET), a specialist in artificial turf fibres.

"New artificial turf pitches will be phased out by 2031 at the latest due to the ban on plastic granules. Even now, artificial turf pitches with infill material are no longer being subsidised," says Dr Claudia Post. For grassroots sports, clubs, cities and local authorities, converting their existing artificial turf pitches will be a mammoth task in the coming years, as artificial turf pitches have to be replaced every 10-15 years. With BioTurf, an environmentally friendly alternative is now available! The surface can be played on like any other, whether running, passing or kicking. Short, heavily crimped blades support longer blades and this simple approach increases playing comfort. BioTurf fulfils all quality requirements and standards for the highest footballing demands.

"BioTurf is an innovative, holistic solution," emphasises Dirk Hanuschik from TFI. "We use rapeseed oil and agricultural waste that does not compete with food production. BioTurf is also almost completely recyclable".
This is in stark contrast to conventional artificial turf, which can currently only be thermally utilised, i.e. burned to generate heat.

As BioTurf does not require the traditional latex process at all, the energy-intensive drying process can be dispensed with, which has a positive effect on the price. Latex is also difficult to recycle. In contrast, BioTurf uses the new thermobonding technology. Here, the thermoplastic pile yarns are thermally fused to the backing. Further development steps still need to be taken in the endeavour to develop a 100% mono-material artificial turf, as a few percent polypropylene still needs to be processed in the backing in addition to the polyethylene fibre material in order to protect it during thermobonding. However, this does not hinder its recyclability.

A new type of pure synthetic leather meets the requirements of the European Ecodesign Regulation. Made from a bio-based plastic, it is biodegradable and meets the requirements for a closed recycling process.

Many synthetic leathers consist of a textile substrate to which a polymer layer is applied. The polymer layer usually consists of an adhesive layer and a top layer, which is usually embossed. The textile backing and the top coat are usually completely different materials. Woven, knitted, or nonwoven fabrics made of PET, PET/cotton, or polyamide are often used as textile substrates. PVC and various polyurethanes are commonly used for coatings. The use of these established composite materials does not meet today's sustainability criteria. Recycling them by type is very costly or even impossible. They are not biodegradable. The search for alternative materials for the production of artificial leather is therefore urgent. In 2022, the EU adopted the Sustainable Products Initiative (SPI) ("Green Deal"). It includes an eco-design regulation that considers a product's life cycle in the conservation of resources. For textile and product design, this means incorporating closing the loop or end-of-life into product development.

In an AiF project carried out in close cooperation between the DITF and the Freiberg Institute gGmbH (FILK), it has now been possible to develop a synthetic leather in which both the fiber material and the coating polymer are identical. The varietal purity is a prerequisite for an industrial recycling concept.

The aliphatic polyester polybutylene succinate (PBS) was recommended as the base material because of its properties. PBS can be produced from biogenic sources and is now available on the market in several grades and in large quantities. Its biodegradability has been demonstrated in tests. The material can be processed thermoplastically. This applies to both the fiber material and the coating. Subsequent product recycling is facilitated by the thermoplastic properties.

In order to realize a successful primary spinning process and to obtain PBS filaments with good textile mechanical properties, process adjustments had to be made in the cooling shaft at the DITF. In the end, it was possible to spin POY yarns at relatively high speeds of up to 3,000 m/min, which had a tenacity of just under 30 cN/tex when stretched. The yarns could be easily processed into pure PBS fabrics. These in turn were used at FILK as a textile base substrate for the subsequent extrusion coating, where PBS was also used as a thermoplastic.

With optimized production steps, PBS composite materials with the typical structure of artificial leather could be produced. Purity and biodegradability fulfill the requirements for a closed recycling process.

RadiciGroup participated in the fifth edition of Phygital Sustainability Expo, an event dedicated to the ecological transition of fashion and design brands through technological innovation, which was held in Rome on 4 and 5 June.

During the narrated fashion show, held ion the 4th of June in the evocative archaeological site of the Imperial Forum Museum, RadiciGroup presented a jumpsuit. The jumpsuit is made of Radilon Chill-fit, an innovative nylon yarn - made by RadiciGroup in its production sites with low environmental impact. It guarantees thermal regulation and ensures freshness and comfort throughout the day. The jumpsuit worn during the day can quickly turn into the "basis" of an elegant evening outfit by simply adding a kimono-dress, made in nylon, to ensure complete future recyclability.

The outfit is the result of the collaboration between RadiciGroup and the designer Anita Bertini, a young designer at POLI.Design (an international reference for postgraduate training at Politecnico di Milano): the goal is to propose a wardrobe made of essential, durable and recyclable garments, which offer endless possibilities of matching without ever compromising personal style and commitment to a better world.

Two companies from the Italian textile scenario collaborated on this project as technical partners: Calzificio Argopi for the creation of the jumpsuit and Erco Pizzi for the kimono-dress fabric.

The Trevira CS brand is celebrating its debut at Clerkenwell Design Week (CDW), which takes place in London from May 21-23 2024. The brand is particularly targeting interior architects, interior designers, and contract furnishers to present its innovations on sustainability. Trevira CS stands for flame retardant fabrics that have been tested for fire safety. They also offer numerous sustainable properties.

The London borough of Clerkenwell is home to more creative businesses and architects per square mile than anywhere else in the world, making it one of the most important design hubs in the world. To celebrate this rich and diverse community, Clerkenwell Design Week has created a unique opportunity to showcase the world's leading interior design brands. With more than 600 events in over 160 showrooms, more than 11 curated exhibitions, stunning installations, talks and a supporting program, CDW has established itself as the UK's leading design festival. The Trevira CS stand is part of the "German Collection - home to German Contemporary Design", which brings together a leading selection of renowned German brands.
 
The product range of flame-retardant Trevira® filament yarns now also includes 30 spun-dyed, UV-stable yarns, which are particularly suitable for outdoor use in fabrics in the hospitality sector and on cruise ships due to their high light fastness and UV resistance. They also score points for their sustainable properties, as the fabrics made from them can be produced in a more environmentally friendly way than textiles made from conventional yarns.

Trevira CS fabrics are also available in recycled versions. They consist of fiber and filament yarns that are obtained in various recycling processes. Fabrics made from these yarns can obtain the Trevira CS eco trademark. The prerequisite for this is a recycled content of at least 50%.

North Carolina State University’s Wilson College of Textiles has been making inroads challenging the conventional pad finishing process and significantly reducing its environmental footprint in collaboration with Baldwin Technology Inc. Front and center in its finishing lab is Baldwin’s TexCoat G4™ digital finishing system.
 
For nearly 125 years, the Wilson College of Textiles has been a hub of innovation and learning, transforming students into experts in the world of textiles. As the textile industry grapples with sustainability challenges, the college has embraced new technologies and innovations to address the issue head-on.
 
At the forefront of this transformation is the Zeis Textiles Extension for Economic Development, an arm of Wilson College which serves the textile industry’s prototyping and pilot production needs in its five laboratories – spun yarn, knitting, weaving, dyeing and finishing, and physical testing. Collaborations with various textile companies have allowed the university to foster industry partnerships that bring forth groundbreaking ideas.
 
The partnership with Baldwin Technology marks a major milestone for the Raleigh, North Carolina-based college’s efforts to contribute to a more sustainable tomorrow.
 
To tackle the longstanding challenges of unsustainable fashion, NC State has taken the lead in demonstrating to students and industry the transition from the traditional pad finishing process to Baldwin’s TexCoat™ G4 system. It offers an innovative “non-contact” precision spray that significantly reduces water consumption, energy usage and chemical waste.
 
“Instead of needing to take the fabric, dip it into a bath to saturate it, squeeze the excess, dry and cure it, you can now precisely add the exact amount of finish you need on the fabric,” explained Rick Stanford, Baldwin's VP Global Business Development of Textiles. “The TexCoat™ G4 system will reduce the amount of pick-up that’s required to carry the chemical onto the fabric. This will also take a lot less energy to dry the fabric, increasing production speeds.”
 
The adoption of the TexCoat™ G4 system signals a new era for the college, allowing students to actively participate in shaping a sustainable future for the textiles industry. In the global effort to protect the planet and its resources, NC State's Wilson College of Textiles is at the forefront, preparing the next generation of professionals to be the leaders of the sustainable textile movement.

Trützschler expanded their portfolio to become the first full-liner in the preparation of textile waste – from mechanical recycling to the spinning preparation of torn secondary fibers.

The TRUECYCLED solution is the result of their cooperation with the company Balkan Textile Machinery INC.CO. in Turkey, which they announced at the ITMA 2023 trade event in Milan. Since then, Trützschler has received many inquiries for recycling systems.

Success with a systems approach
Recycling systems face significant technological challenges. On average, torn fibers are much shorter than virgin fibers. The percentage share of short fibers in the fiber mass is much higher. Unopened yarn and fabric particles are also difficult to process. Not surprisingly, much academic and practical research is currently conducted to find solutions for these problems. Dr. Georg Stegschuster, a researcher specializing in textile recycling, believes a systems approach is needed. He is working at the Recycling atelier, a model factory for mechanical recycling in Augsburg, Germany, which is committed to delivering the latest technological insights for textile recycling. “A perfect fine-tuning between tearing and spinning preparation is key for obtaining the best possible quality results and avoiding unnecessary fiber shortening,” he says. “This can be achieved if you are in control of both processes – and have the necessary expertise for both processes too.”

Gentle but effective
In some cases, for example, it may be advantageous to have less aggressive settings in the tearing line. This can help avoid unnecessary fiber shortening. The remaining higher share of unopened fabric must then be handled in a high-performance spinning preparation line. This starts with the right blow room configuration for perfect opening, cleaning and blending. A card that is specially designed for recycling materials, such as the new TC 30Ri, can also enable gentle but effective treatment of fibers.

A shortened drafting process is also a must. The integrated draw frame IDF 3 can make this possible. The draft is high enough to provide excellent levelling of the numerous short fibers, but low enough to prevent floating fibers.

Full-liner in mechanical recycling and preparation of textile waste
Trützschler now offers a complete system covering the whole process, from cutting and tearing textile waste through to carding and drawing secondary fibers. Thanks to this holistic approach and Trützschler’s expertise for the whole process, manufacturers can avoid unnecessary fiber shortening.

Building on a renewed five-year strategy, Fashion for Good selects ten new innovators for its 2024 programme to receive tailored support validating their technologies. This cohort represents an increased focus on novel footwear material and recycling technologies, man-made cellulosics, and nylon recycling.

The 2024 Innovation Programme provides support based on the development stage and ambitions of each innovator, matching them with relevant industry partners to drive technology and impact technology and impact validation as well as investing activities.

The selected innovators joining the 2024 Innovation Programme are:

• Algreen Ltd: Algreen co-develops alternative materials from algae and biobased sources that can replace fossil-based products such as PU.
• Balena: Balena creates biodegradable partly biobased polymers for footwear outsoles.
• Epoch Biodesign: Epoch Biodesign is an enzymatic recycler of PA66 and PA6 textile waste.
• Fibre52: Fibre52 is a bio-based solution replacing traditional bleach prepared-for-dyeing and dye processes.
• Gencrest BioProducts Pvt Ltd: Gencrest works with various agri-residues to convert them into textile-grade fibres using their enzymatic technology.
• HeiQ AeoniQ: HeiQ AeoniQ™ is a continuous cellulose filament yarn with enhanced tensile properties.
• Nanollose - Nullabor: Nullarbor™Lyocell is developed from microbial cellulose which is converted into pulp pulp to produce a lyocell fibre with their partner Birla Cellulose.  
• REGENELEY:  REGENELEY pioneers advanced shoe sole recycling technologies by separating and recycling EVA, TPU, and rubber components found in footwear.
• Samsara Eco: Samsara Eco is an enzymatic recycler of PA66 and PET textile waste.
• SEFF: SEFF Fibre produces cottonised fibres and blends of hemp fabrics utilising a patented HVPED process.