From the Sector

Archroma will introduce its new Super Systems+ concept and highlight product innovations at Techtextil 2024, being held in Frankfurt, Germany from April 23 to 26.

A highlight of Archroma’s participation in Techtextil, Super Systems+ are powerful end-to-end systems that combine fiber-specific processing solutions and intelligent effects. The Super Systems+ suite encompasses wet processing solutions that deliver measurable environmental impact from sizing to finishing; durable colors and functional effects that add value and longevity to the end product; and cleaner chemistries that eliminate harmful or regulated substances.

For textile partners to the automotive industry, Archroma is introducing DOROSPERS® KHF, a new range of high-lightfast disperse dyes that provide optimum build up on polyester microfiber, including artificial suede for car interiors.

For nonwoven applications in fields such as healthcare, hygiene and filtration, Archroma recommends APPRETAN® FFX6750, a new addition to its range of high-performance zero-formaldehyde acrylic copolymers, and APPRETAN® FFX1540.

APPRETAN® FFX1540 is a new APEO free and formaldehyde free self-crosslinking polymer, medium soft with very low tackiness, and strongly hydrophobic, developed for the chemical bonding of nonwovens and for the coating of technical textiles, where low water absorption and high-water tightness are required, combined with high durability in severe environment.

For workwear and uniforms that protect people under adverse conditions, Archroma solutions include HELIZARIN® ULTRA-FAST, for printing with pigment dispersions and metallic pigments, and the new ALBAFIX® ECO Plus wet fastness improver. Archroma’s PFC-free PHOBOTEX® R-ACE durable water repellent delivers excellent water repellence while preserving fabric quality and ensuring sustainability. Archroma has also expanded the revolutionary AVITERA® SE GENERATION NEXT range of resource-saving dyes with new colors.

Further solutions for active wear and workwear include the newly launched bio-based PHOBOTEX® NTR-50 durable water repellent product, which is PFAS free, formaldehyde free and crosslinker free, as well NYLOFIXAN® HFS, a new fixing agent for polyamide and blends that is fully compliant with the latest restrictions on bisphenol compounds.

Archroma is also launching ARKOPHOB® NTR-40 at Techtextil 2024. The company’s first crosslinker with an improved sustainability profile, its monomers are partially derived from renewably sourced, plant-based raw materials. Another new innovation is biocide-free OX20, an odor-neutralizing technology launched by Archroma in partnership with SANITIZED AG.

For home textiles, mills and brands can select ARKOFIX® NZW formaldehyde-free* resin for high whiteness and extraordinary product stability, with no yellowing during storage at elevated temperatures, even over a prolonged period of time. For a super-soft handle, the SILIGEN® EH1 is a vegan silicone macro-emulsion softener with 35% plant-based active content.

INDA, the Association of the Nonwoven Fabrics Industry, announced three recipients for the INDA Lifetime Service Award and Lifetime Technical Achievement Awards. David Powling, Paul Latten, and Arnold Wilkie are being recognized for their key contributions to the advancement of the nonwovens industry and INDA.

David Powling and Paul Latten will receive their awards at the World of Wipes® (WOW) International Conference, June 18th beginning at 4:30 pm
Arnold Wilkie will receive his award at the RISE® Conference, October 1st at 4:30 pm.

The Award recipients are:

David Powling
David Powling has worked for Kimberly-Clark Corporation for nearly 25 years and has been a contributor to the Wipes Task Force and Technical Committees at INDA and EDANA for over 15 years. Powling served as Chairman of the INDA Wipes Task Force from 2009-2013. His work on these committees include developing the first and second edition of the Flushability Guidance Document (GD) and he was later instrumental in the roll out of the third and fourth edition GDs. Throughout this time, Powling coordinated activities with Kimberly-Clark Corporation to provide critical supporting data, as these flushability test protocols were developed.

Powling has been actively involved in collection studies where he was key in framing the work packages of those studies, collating and analyzing the data, and drafting reports. These collection studies include: Moraga, CA (advisor); Maine – Part #1 and Part #2 (hands-on); Jacksonville (hands-on); and the Northern and Southern California studies in 2023, which combined, was the largest study to date. Powling led the charge in the California study and was personally involved in identifying 1,745 samples.

Powling has been a key technical contributor to the INDA Government Relation efforts that has resulted in labelling regulations in multiple U.S. states. He has also been an active participant in efforts to develop an ISO standard for flushable products.  In this effort, he was a test method sub-team leader during the preparation of the proposed ISO standard responsible for organizing appendices of existing flushability methodologies. Additionally, Powling has been awarded, or has pending, 25+ U.S. patents, including many covering the development of dispersible wet wipes.

Paul Latten
Paul Latten has been an active member of the nonwoven and fiber industries for over 35 years. Most recently he has led innovation at Southeast Nonwovens, commercializing more than 75 new nonwoven products per year. Prior to joining Southeast Nonwovens, Latten held senior leadership positions with Basofil, Consolidated Fibers, Invista, and KoSa (and Trevira and Hoechst Celanese precursors to KoSa.)

Latten has a successful career of reinvigorating company R&D efforts by instilling a focus on customer-centric innovation. He is an inventor of record for a number of patents and pending applications. Latten has given numerous presentations on innovative nonwoven materials, at events such as INDA’s World of Wipes® (WOW) International Conference, RISE® (Research, Innovation & Science for Engineered Fabrics), the VISION International Conference, and the Converting and Bonding (CAB) Conference.

His recent innovations have been diverse in scope and include nonwovens for use in hydrogen fuel cells, moisture detection media, proprietary wipe designs, and natural fiber-based packaging. Aside from new fiber and nonwoven products, Latten has championed process innovation that has resulted in tangible output gains that broadened the market opportunity for his current and prior companies.

Latten’s portfolio of innovations has spanned across the nonwoven markets, often involving wetlaid and drylaid nonwovens. These include materials for moisture detection, synthetic papers, fuel cell cathodes, protective covers for treats, melamine nonwovens for surface treatment, and the development of binder fibers. His work also touched upon disposable hygiene applications entailing dry-laid web containing hollow synthetic fibers to improve absorbent core fluid uptake.

Latten has been a board member of INDA for multiple terms and served as Chairman in 2008-2010. Additionally, he has contributed to many INDA conference planning committees, helping drive the success of these events.

Arnold Wilkie
Arnold Wilkie has a distinguished career in advancing yarn, fiber, and nonwoven technologies since 1970. Since 1988, he has been President and Owner of Hills, Inc. where he has sustained their innovative culture. Wilkie has over 40 patents and applications covering yarns, bicomponent fibers, ultra-fine fibers, nanofibers, dissolvable filaments, meltblown nonwovens, and polymer processing innovations. He established Hills as a leading innovator in bicomponent fiber nonwovens and in the equipment to produce these materials. During Wilkie’s time leading Hills, their pilot capabilities have become well-known and highly regarded for enabling material innovations.

Many of his patents pertain to the development of equipment solutions that enable the production of complex bi- and multi-component fiber structures. These solutions include the method of forming a continuous filament spun-laid web, the method and apparatus for producing polymer fibers and fabrics including multiple polymer components, the method and apparatus for controlling airflow in a fiber extrusion system, and controlling the dissolution of dissolvable polymer components in plural component fibers.

Arnold Wilkie, President, Hills, Inc., earned his bachelor’s degree in Mechanical Engineering from the University of Tennessee and an MBA from the University of West Florida. He is a licensed Professional Engineer in Florida, and has been engaged in the synthetic fibers industry since 1970. The first 17 years were with the Monsanto Company, where he held positions in Fiber Process Engineering, Fiber Product R&D, and Product Management. Since 1988, he has been a majority Owner and President of Hills, Inc., a 52-year-old company located in West Melbourne, Florida, specializing in the development, manufacture, and supply of advanced custom fiber extrusion equipment. Wilkie has been involved with and supported The Nonwovens Institute, since its founding in 1991 as the Nonwovens Cooperative Research Center (NCRC), with Hills joining as a Member in 2001

Lightweight design is a key enabler for addressing the energy transition and sustainable economy. Following the liquidation of the state agency Leichtbau BW GmbH, a consortium consisting of the Allianz Faserbasierter Werkstoffe Baden-Württtemberg (AFBW), the Leichtbauzentrum Baden-Württemberg (LBZ e.V. -BW) and Composites United Baden-Württemberg (CU BW) now represents the interests of the lightweight construction community in the State.

The Lightweight Design Agency for Baden-Württemberg is set up for this purpose on behalf of and with the support of the State. The Lightweight Construction Alliance BW is the central point of contact for all players in the field of lightweight construction in the State and acts in their interests at national and international level. Professor Markus Milwich from the German Institutes of Textile and Fiber Research Denkendorf (DITF) represents the agency.

The use of lightweight materials in combination with new production technologies will significantly reduce energy consumption in transportation, the manufacturing industry and the construction sector. Resources can be saved through the use of new materials. As a cross-functional technology, lightweight construction covers entire value chain from production and use to recycling and reuse.

The aim of the state government is to establish Baden-Württemberg as a leading provider of innovative lightweight construction technologies in order to strengthen the local economy and secure high-quality jobs.

Among others, the "Lightweight Construction Alliance Baden-Württemberg" will continue the nationally renowned "Lightweight Construction Day", which acts as an important source of inspiration for a wide range of lightweight construction topics among business and scientific community.

Professor Milwich, an expert with many years of experience and an excellent network beyond the State's borders, has been recruited for this task. In his role, Milwich also represents the state of Baden-Württemberg on the Strategy Advisory Board of the Lightweight Construction Initiative of the Federal Ministry for Economic Affairs and Climate Action, which supports the cross functional-technology and efficient transfer of knowledge between the various nationwide players in lightweight construction and serves as a central point of contact for entrepreneurs nationwide for all relevant questions.

From 2005 to 2020, Professor Milwich headed the Composite Technology research at the DITF, which was integrated into the Competence Center Polymers and Fiber Composites in 2020. He is also an honorary professor at Reutlingen University, where he teaches hybrid materials and composites. "Lightweight design is an essential aspect for sustainability, environmental and resource conservation. I always showcase this in research and teaching and now also as a representative of the lightweight construction community in Baden-Württemberg," emphasizes Professor Milwich.

The German Institutes of Textile and Fiber Research Denkendorf (DITF) have modernized and expanded their melt spinning pilot plant with support from the State of Baden-Württemberg. The new facility enables research into new spinning processes, fiber functionalization and sustainable fibers made from biodegradable and bio-based polymers.

In the field of melt spinning, the DITF are working on several pioneering research areas, for example the development of various fibers for medical implants or fibers made from polylactide, a sustainable bio-based polyester. Other focal points include the development of flame-retardant polyamides and their processing into fibers for carpet and automotive applications as well as the development of carbon fibers from melt-spun precursors. The development of a bio-based alternative to petroleum-based polyethylene terephthalate (PET) fibers into polyethylene furanoate (PEF) fibers is also new. Bicomponent spinning technology, in which the fibers can be produced from two different components, plays a particularly important role, too.

Since polyamide (PA) and many other polymers were developed more than 85 years ago, various melt-spun fibers have revolutionized the textile world. In the field of technical textiles, they can have on a variety of functions: depending on their exact composition, they can for example be electrically conductive or luminescent. They can also show antimicrobial properties and be flame-retardant. They are suitable for lightweight construction, for medical applications or for insulating buildings.

In order to protect the environment and resources, the use of bio-based fibers will be increased in the future with a special focus on easy-to-recycle fibers. To this end, the DITF are conducting research into sustainable polyamides, polyesters and polyolefins as well as many other polymers. Many 'classic', that is, petroleum-based polymers cannot or only insufficiently be broken down into their components or recycled directly after use. An important goal of new research work is therefore to further establish systematic recycling methods to produce fibers of the highest possible quality.

For these forward-looking tasks, a bicomponent spinning plant from Oerlikon Neumag was set up and commissioned on an industrial scale at the DITF in January. The BCF process (bulk continuous filaments) allows special bundling, bulking and processing of the (multifilament) fibers. This process enables the large-scale synthesis of carpet yarns as well as staple fiber production, a unique feature in a public research institute. The system is supplemented by a so-called spinline rheometer. This allows a range of measurement-specific chemical and physical data to be recorded online and inline, which will contribute to a better understanding of fiber formation. In addition, a new compounder will be used for the development of functionalized polymers and for the energy-saving thermomechanical recycling of textile waste.

CARBIOS and Landbell Group, a global operator of more than 40 producer responsibility organizations (PROs) and a provider of closed-loop recycling solutions, announce the signing of a non-binding Memorandum of Understanding for the sourcing, preparation and recycling of post-consumer PET waste using CARBIOS’ biorecycling technology at its first commercial plant in Longlaville from 2026.  

The partnership will leverage Landbell Group’s expertise and network in the sourcing of PET packaging and textile waste which will be prepared for biorecycling. Thanks to CARBIOS’ highly selective enzyme, less sorting and washing is required compared to current recycling technologies, offering future savings in energy and water use. From 2026, Landbell Group will supply CARBIOS with 15 kt/year of PET flakes, ensuring a steady supply chain for sustainable PET production. These flakes will serve as essential feedstock for CARBIOS’ production of food-grade PTA and MEG, further re-polymerized into PET.

Through the partnership with Landbell Group in Germany, the supply of multilayer trays through the CITEO tender in France  and the MoU with Indorama Ventures, CARBIOS will have sourced over 70% of its feedstock required for the 50kt/year capacity when its first commercial plant in Longlaville, France, will operate at full capacity. Close to the borders with Belgium, Germany and Luxembourg, the plant’s location is strategic for nearby waste supplies.

Through this partnership with CARBIOS, Landbell Group will ensure that the problematic PET fractions such as multilayered, colored and opaque trays from packaging waste and polyester textile waste are redirected towards recycling. In this way, Landbell Group strengthens its commitment to the development of recycling solutions to enable a circular economy.

Textiles for technical applications often derive their special function via the application of coatings. This way, textiles become, for example wind and water proof or more resistant to abrasion. Usually, petroleum-based substances such as polyacrylates or polyurethanes are used. However, these consume exhaustible resources and the materials can end up in the environment if handled improperly. Therefore, the German Institutes of Textile and Fiber Research Denkendorf (DITF) are researching materials from renewable sources that are recyclable and do not pollute the environment after use. Polymers that can be produced from bacteria are here of particular interest.

These biopolymers have the advantage that they can be produced in anything from small laboratory reactors to large production plants. The most promising biopolymers include polysaccharides, polyamides from amino acids and polyesters such as polylactic acid or polyhydroxyalkanoates (PHAs), all of which are derived from renewable raw materials. PHAs is an umbrella term for a group of biotechnologically produced polyesters. The main difference between these polyesters is the number of carbon atoms in the repeat unit. To date, they have mainly been investigated for medical applications. As PHAs products are increasingly available on the market, coatings made from PHAs may also be increasingly used in technical applications in the future.

The bacteria from which the PHAs are obtained grow with the help of carbohydrates, fats and an increased CO₂ concentration and light with suitable wavelength.

The properties of PHA can be adapted by varying the structure of the repeat unit. This makes polyhydroxyalkanoates a particularly interesting class of compounds for technical textile coatings, which has hardly been investigated to date. Due to their water-repellent properties, which stem from their molecular structure, and their stable structure, polyhydroxyalkanoates have great potential for the production of water-repellent, mechanically resilient textiles, such as those in demand in the automotive sector and for outdoor clothing.

The DITF have already carried out successful research work in this area. Coatings on cotton yarns and fabrics made of cotton, polyamide and polyester showed smooth and quite good adhesion. The PHA types for the coating were both procured on the open market and produced by the research partner Fraunhofer IGB. It was shown that the molten polymer can be applied to cotton yarns by extrusion through a coating nozzle. The molten polymer was successfully coated onto fabric using a doctor blade. The length of the molecular side chain of the PHA plays an important role in the properties of the coated textile. Although PHAs with medium-length side chains are better suited to achieving low stiffness and a good textile handle, their wash resistance is low. PHAs with short side chains are suitable for achieving high wash and abrasion resistance, but the textile handle is somewhat stiffer.

The team is currently investigating how the properties of PHAs can be changed in order to achieve the desired resistance and textile properties in equal measure. There are also plans to formulate aqueous formulations for yarn and textile finishing. This will allow much thinner coatings to be applied to textiles than is possible with molten PHAs.

Other DITF research teams are investigating whether PHAs are also suitable for the production of fibers and nonwovens.

RadiciGroup announced the appointment of Stefano Pigozzi to the Board of Directors of Radici Partecipazioni SpA, the parent company overseeing all the Group's business activities in the chemicals, engineering polymers and advanced textile solutions sectors.
 
A professional with proven experience in the chemical industry, Mr. Pigozzi will complement the Board with his strategic vision acquired in international organizations.
 
Stefano Pigozzi graduated from the University of St. Gallen in Switzerland with a degree in Business Administration and started his work experience in the finance division of BASF in the late 1980s. Since then, chemistry has remained at the centre of his career: over the years, he has held marketing and sales positions of increasing responsibility in various business sectors (plastics and inorganics), moving up to more strategic and managerial roles within BASF, including president of the Monomers Division and, most recently, head of the Group Global Purchasing Division at the Ludwigshafen headquarters.
 
During his more than 30-year career at BASF, Mr. Pigozzi has consistently demonstrated his leadership capability, his financial analysis skills and his dedication to corporate business success. He has also contributed significantly to the positioning of BASF as a global leader in the chemical industry.
 
Mr. Pigozzi’s appointment to the Board of Directors of Radici Partecipazioni is aimed at strengthening RadiciGroup's presence in the market and helping to guide the company towards new goals.

Celanese Corporation, a specialty materials and chemical company, and Under Armour, Inc., a company in athletic apparel and footwear, have collaborated to develop a new fiber for performance stretch fabrics called NEOLAST™. The innovative material will offer the apparel industry a high-performing alternative to elastane – an elastic fiber that gives apparel stretch, commonly called spandex. This new alternative could unlock the potential for end users to recycle performance stretch fabrics, a legacy aspect that has yet to be solved in the pursuit of circular manufacturing with respect to stretch fabrics.

NEOLAST™ fibers feature the powerful stretch, durability, comfort, and improved wicking expected from elite performance fabrics yet are also designed to begin addressing sustainability challenges associated with elastane, including recyclability. The fibers are produced using a proprietary solvent-free melt-extrusion process, eliminating potentially hazardous chemicals typically used to create stretch fabrics made with elastane.

NEOLAST™ fibers will be produced using recyclable elastoester polymers. As end users transition to a more circular economy, Celanese and Under Armour are exploring the potential of the fibers to improve the compatibility of stretch fabrics with future recycling systems and infrastructure.

In addition to the sustainability benefits, the new NEOLAST™ fibers deliver increased production precision, allowing spinners to dial power-stretch levels up or down and engineer fibers to meet a broader array of fabric specifications.

To expand its support for high-end and luxurious automotive interiors, B.I.G. Yarns has completed its first industrial production runs of virgin polyester BCF yarns for automotive carpet to complement its line of polyamide PA6 superior yarns.

There is a growing market in PET for automotive interior applications, with polyester allowing automotive OEMs and Tier 1 to develop products that, from the outset, consider eco-design by building MONO-polymer carpets and flooring that are 100% recyclable at End of Life (EOL ). These materials are helping to ensure improved and more sustainable EOL recycling of electric vehicles that are driving the future of the car industry.

The new PET BCF Yarns offer high-performance for automotive carpets, including abrasion and stain resistance, and durability, passing all stringent automotive tests including the Taber test for abrasion performance, compressibility and recovery ability test, light fastness in automotive (DIN EN ISO 105-B06) and VOC (fogging) according the VDA 278 test on VOC and FOG emission. The yarns can be color solution dyed, have a dTex between 1300 – 1500, 81 filaments and are ideally for mats with a composition of 400 to 800 gram per m², while the yarns for molded carpets have a dTex of 1200, 144 filaments for 380 gram per m².

With the addition of PET BCF yarns, B.I.G. Yarns is now a one-stop-shop for 3 types of Solution Dyed BCF carpet yarns for the automotive industry: nylon (PA6), polypropylene (PP) and polyester (PET), and the Eqo-range of PA6 yarns – the sustainability focused EqoBalance, EqoCycle and EqoYarn.

The automotive carpet market is expected to grow strongly in the coming decade with the increased demand for vehicle customization and personalization driven by owners looking to upgrade and enhance interiors, including the flooring area.
A growing awareness around car hygiene is also boosting the market as consumers become more conscious of maintaining cleanliness in their vehicles, including the floors. Automotive carpets provide an effective solution by trapping dirt and preventing it from spreading to other areas.

Carbon fiber-reinforced polymer lamellas are an innovative method of reinforcing buildings. There are still many unanswered questions regarding their recycling, however. A research project by Empa's Mechanical Systems Engineering lab is now set to provide answers. Thanks to the support from a foundation, the project could now be launched.

The construction sector is responsible for around 60 percent of Switzerland's annual waste. The industry's efforts to recycle demolition materials are steadily increasing. Nevertheless, there are still end-of-life materials that, for the time being, cannot be reused as recycling would be too time-consuming and expensive. One of these are carbon fiber-reinforced polymer (CFRP) lamellas.

Making buildings "live" longer
The reinforcing method developed by Urs Meier, former Empa Director at Dübendorf, has been used in infrastructure construction for 30 years. CFRP lamellas are attached with epoxy adhesive to bridges, parking garages, building walls and ceilings made of concrete or masonry. As a result, the structures can be used for 20 to 30 years longer. The method is increasingly being applied worldwide – mainly because it massively improves the earthquake resistance of masonry buildings.

"By significantly extending the lifespan of buildings and infrastructure, CFRP lamellas make an important contribution to increasing sustainability in the construction sector. However, we need to find a way how we can further use CFRP lamellas after the buildings are being demolished," explains Giovanni Terrasi, Head of the Mechanical Systems Engineering lab at Empa. To achieve this, he wants to develop a method for recycling CFRP lamellas. Convinced by this idea, a foundation supported it with a generous donation. The project officially launched in October.

Gentle separation
First, a mechanical process will be developed to detach the CFRP lamellas from the concrete without damaging them. Initial tests at Empa are encouraging: After the lamellas were separated from the concrete, they still had a strength of 95 percent – even if they had already been used for 30 years.

Then, the demolished CFRP lamellas shall be used to produce reinforcement for prefabricated components. Terrasi's goal: saving thousands of tons of CFRP lamellas from ending up in landfills after the demolition of old concrete structures and reuse them in low-CO₂ concrete elements. After completion of the project, Giovanni Terrasi and his team – consisting of Zafeirios Triantafyllidis, Valentin Ott, Mateusz Wyrzykowski and Daniel Völki – want to produce railroad sleepers from recycled concrete, which will be reinforced and prestressed with demolition CFRP lamellas. This would give the "waste-to-be" material a second life in Swiss infrastructure construction.