From the Sector

Since March 1st 2024, the technical centre of Institut für Textiltechnik of RWTH Aachen University (ITA) has been equipped with an additional winder.

This globally unique winder has been manufactured by Comoli Fermo S.r.l, Paruzzaro, Italy, and enables the development of elastic yarns for numerous and innovative areas of application. Monofilament and multifilament yarns can be spun within a speed range of 100 to 3,200 m/min on bobbins with an industrial standard size of 73.6 mm x 83.8 mm x 115.5 mm.

The use of these bobbins enables immediate further processing along the textile process chain, for example in production of elastic combination yarns or knitting. Due to the high flexibility of this winder in combination with the available spinning plants at ITA, testing is possible with material amounts starting from a few hundred grams up to hundreds of kilograms.

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.

After a long phase of continuous growth, the composites market has seen strong fluctuations since 2018. In 2023, the overall market for composites in Europe fell by 8%.

The current mood on the markets in Germany and Europe is rather negative within the industry. The main drivers are the persistently high energy and raw material prices. Added to this are problems in logistics chains and a cautious consumer climate. A slowdown in global trade and uncertainties in the political arena are fueling the negative sentiment. Despite rising registration figures, the automotive industry, the most important application area for composites, has not yet returned to its pre-2020 volume. The construction industry, the second key application area, is currently in crisis. These factors have already caused the Eu-ropean composites production volume to fall significantly in recent years. There has now been another decline in Europe for 2023.

Overall development of the composites market
The volume of the global composites market totalled 13 million tons in 2023. Compared to 2022, with a volume of 12.3 million tons, growth was around 5%. In comparison, the European composites production volume fell by 8% in 2023. The total European composites market thus comprises a volume of 2,559 kilotons (kt) after 2,781 kt in 2022.

The market is therefore declining and falling back to the level of 2014. Overall, market momentum in Europe was lower than in the global market. Europe's share of the global market is now around 20%.

As in previous years, development within Europe is not uniform. The differences are due to very different regional core markets, the high variability of the materi-als used, a wide range of different manufacturing processes and widely differing areas of application. Accordingly, there are different regional trends, especially with regard to the individual processes, although there were declines in all re-gions and for almost all processes in 2023. At almost 50% of the market volume, the transportation sector accounts for the largest share of total composites pro-duction in terms of volume. The next two largest areas are the electri-cal/electronics sector and applications in construction and infrastructure.

The entire market report 2023 is available for download: https://www.avk-tv.de/publications.php.

Kelheim Fibres is showcasing recent research findings at this year's Cellulose Fibres Conference (13rd-14th of March). The development, led by Dr. Ingo Bernt, Project Leader of Fibre & Application Development at Kelheim Fibres, and Dr. Thomas Harter from Graz University of Technology, provides insights into the correlation between the geometry of viscose fibres and the liquid absorption of tampons.

Kelheim Fibres has long been engaged in the functionalization of viscose fibres, including the specific adaptation of fibre cross-sections. The trilobal Galaxy® serves as an example. The current study underscores the properties of the fibre, primarily rooted in its geometry. This involves taking a closer look at the underlying mechanisms. It has been confirmed that, in contrast to the traditionally round viscose fibres and despite similar chemical compositions and mechanical properties, Galaxy® enables significantly better liquid absorption.

While the higher specific surface area of trilobal fibres already promotes improved liquid absorption, this is not the main factor accounting for the difference in absorption. Instead, the geometric shape of the fibres proves to be crucial. Trilobal fibres create and maintain a more voluminous, extensive network within the absorbent body, providing a larger volume for liquid absorption.

Dr. Ingo Bernt emphasizes, "The results of our study are not limited to tampons—any application requiring increased absorbency can benefit from the properties of our Galaxy® fibres."

The lecture "Geometry Matters: Unveiling Tampon Absorption Mechanisms" by Dr. Ingo Bernt und Dr. Thomas Harter takes place on the 14th of March at 2:50pm.

INDA, the Association of the Nonwoven Fabrics Industry, announced the election of five new members to serve on its 2024 Board of Directors. The Board of Directors play a key role in advancing INDA’s strategic objectives, actively supporting both the industry and the membership. Their primary responsibility lies in ensuring that INDA remains responsive to the evolving needs of its members and the broader nonwovens industry, guiding the formulation of policies and programs.

The five new Board members include:

• Jaren J. Edwards, President, Stein Fibers
• Edward McNally, Sales Director Nonwoven, Oerlikon Nonwoven
• Thomas Olsen, Senior Vice President, Americas Business Area, Suominen
• Patricia A Sargeant, Vice President, Glatfelter Corporation
• Paul Wood, President, Ontex North America

The Board is comprised of elected Board Officers. One-third of the entire Board is elected each year for a three-year term by INDA’s general membership. INDA’s Executive Committee, empowered to act on behalf of the Board between meetings, consists of the Board Officers plus appointees.
The Executive Committee includes:

• Chair: Mark Thornton, Vice President, The Procter & Gamble Company
• Vice Chair: Barbara Lawless, VP of Sales and Marketing – Medical Products, Precision Fabrics Group, Inc.
• Past Chair: Bryan Haynes, Senior Technical Director for Global Nonwovens, Kimberly-Clark Corporation
• Appointee: Mike Clark, President, Filtration Solutions, Hollingsworth & Vose Company
• Appointee: Jodi Russell, Vice President R&D, Cleaning Innovation, Packaging & Sustainability, The Clorox Company
• Appointee: Jeff Stafford, Vice President of Nonwovens, Milliken & Company
• Appointee: Robert Weilminster, EVP & General Manager, US & Canada – Health, Hygiene and Specialties Division, Berry Global
• Appointee: Tom Zaiser, CEO, Indorama Ventures

As of March 1, 2024, Dr. Denis Hinz will become new Head of SGL Carbon's Carbon Fibers Business Unit. The previous Head, Roland Nowicki, will leave SGL Carbon on May 31, 2024 at his own request to pursue new professional challenges. He will be available to the company as a consultant until his leaving date to support a smooth transition.

Roland Nowicki took over as Head of Carbon Fibers in November 2020 and has successfully driven forward the realignment of the business unit over the past three years.  

Dr. Denis Hinz has been with SGL Carbon for more than six years and has held various management positions during this time, including Head of Operations of the Fuel Cell Components division and Managing Director of SGL Fuel Cell Components GmbH in Meitingen since December 1, 2021. The graduate engineer from the Technical University of Munich is an experienced manager who is well networked within SGL Carbon and has closely followed the development of Carbon Fibers in recent years.

Eastman announces a partnership with Patagonia to address textile waste.

The outdoor apparel company teamed up with Eastman to recycle 8,000 pounds of pre- and post-consumer clothing waste, which Eastman processed through its molecular recycling technology. The process involves breaking down Patagonia’s unusable apparel into molecular building blocks that Eastman can use to make new fibers.

"We know apparel waste is a major problem, and consumers increasingly want better, more sustainable solutions when their most loved clothing reaches the end of its life," said Natalie Banakis, materials innovation engineer for Patagonia.

"Our collaborations show the world what’s possible when it comes to sustainability,” said Carolina Sister Cohn, global marketing lead for Eastman textiles. “We have the technology to make the textiles industry circular, and we know it requires collaboration with innovative brands to make circular fashion possible. This is only the beginning, and we look forward to more collaborations throughout 2024."

At this year's JEC World 2024 from 5 to 7 March, KARL MAYER GROUP will be exhibiting with KARL MAYER Technical Textiles and its STOLL Business

One focus of the exhibition will be non-crimp fabrics and tapes made from bio-based yarn materials for the reinforcement of composites.

"While our business with multiaxial and spreading technology for processing conventional technical fibres such as carbon or glass continues to do well, we are seeing increasing interest in the processing of natural fibres into composites. That's why we have a new product in our trade fair luggage for the upcoming JEC World: an alpine ski in which, among other things, hemp fibre fabrics have been used," reveals Hagen Lotzmann, Vice President Sales KARL MAYER Technische Textilien.

The winter sports equipment is the result of a subsidised project. The hemp tapes for this were supplied by FUSE GmbH and processed into non-crimp fabrics on the COP MAX 5 multiaxial warp knitting machine in the KARL MAYER Technical Textiles technical centre.

The STOLL Business Unit will be focussing on thermoplastic materials. Several knit to shape parts with a textile outer surface and a hardened inner surface will be on display. The double-face products can be made from different types of yarn and do not need to be back-moulded for use as side door panels or housing shells, for example. In addition, the ready-to-use design saves on waste and yarn material.

The fifth edition of IFCO Istanbul Fashion Connection took place from 7 to 10 February 2024 with a record 38,545 visitors. At IFCO, 545 exhibitors met international trade visitors from 159 countries such as Australia, Canada, Colombia, France, Germany, Kenya, Malaysia, Mexico, Nigeria, Philippines, Saudi Arabia, South Africa, South Korea, Spain, Thailand, UK, USA, United Arab Emirates in a total of 8 halls at the Istanbul Expo Centre. The largest group of foreign visitors came from the Middle East (33.4%), Europe (24%), Asia (23.3%) and North Africa (13.3%). A total of 6% of visitors came from the USA, South America, Australia and Africa.

Divided into clear exhibition areas on a total of 100,000 square metres of exhibition space, brands and manufacturers presented the latest collections from the areas of womenswear, menswear, kidswear, denim, sportswear, evening and wedding wear, lingerie, hosiery, leather and furs.

The next IFCO is planned for 7-9 August 2024.

At this year's JEC World, STFI will be presenting highlights from carbon fibre recycling as well as a new approach to hemp-based bast fibres, which have promising properties as reinforcement in lightweight construction.

Green Snowboard
At JEC World in Paris from 5 to 7 March 2024, STFI will be showcasing a snowboard from silbaerg GmbH with a patented anisotropic coupling effect made from hemp and recycled carbon fibres with bio-based epoxy resin. In addition to silbaerg and STFI, the partners Circular Saxony - the innovation cluster for the circular economy, FUSE Composite and bto-epoxy GmbH were also involved in the development of the board. The green snowboard was honoured with the JEC Innovation Award 2024 in the “Sport, Leisure and Recreation” category.

VliesComp
The aim of the industrial partners Tenowo GmbH (Hof), Siemens AG (Erlangen), Invent GmbH (Braunschweig) and STFI united in the VliesComp project is to bring recycled materials back onto the market in various lightweight construction solutions. The application fields "Innovative e-machine concepts for the energy transition" and "Innovative e-machine concepts for e-mobility" were considered as examples. On display at JEC World in Paris will be a lightweight end shield for electric motors made from hybrid nonwovens - a mixture of thermoplastic fibre components and recycled reinforcing fibres - as well as nonwovens with 100% recycled reinforcing fibres. The end shield was ultimately manufactured with a 100% recycled fibre content. The tests showed that, compared to the variant made from primary carbon fibres using the RTM process, a 14% reduction in CO₂ equivalent is possible with the same performance. The calculation for the use of the prepreg process using a bio-resin system shows a potential for reducing the CO₂ equivalent by almost 70 %.

Bast fibre reinforcement
To increase stability in the plant stem, bast fibres form in the bark area, which support the stem but, in contrast to the rigid wood, are very flexible and allow slender, tall plants to move in the wind without breaking.A new process extracts the bast bark from hemp by peeling.The resulting characteristic values, such as tensile modulus of elasticity, breaking strength and elongation, are very promising in comparison with the continuous rovings made of flax available on the market.The material could be used as reinforcement in lightweight construction.At JEC World, STFI will be exhibiting reinforcing bars that have been processed into a knitted fabric using a pultrusion process based on bio-based reinforcing fibres made from hemp bast for mineral matrices.