From the Sector

Carbios announces its membership of the Ellen MacArthur Foundation’s Network. Carbios shares the Foundation’s commitment to accelerate the transition to a circular economy, especially in the areas of plastics and fashion. By joining the Ellen MacArthur Foundation’s Network, Carbios will connect with other leaders within the Foundation’s leading circular economy network of businesses, policymakers, academia, innovators, and thought leaders worldwide.

Carbios fully adheres to Ellen MacArthur Foundation’s vision for a circular economy for plastic. Its biorecycling and biodegradation technologies already match the actions defined by the Foundation:

• Eliminate all problematic and unnecessary plastic items
• Innovate to ensure that the plastics we do need are reusable, recyclable, or compostable
• Circulate all the plastic items we use to keep them in the economy and out of the environment

Through ambitious collaborative projects, plastics and fashion are two topic areas for the Foundation and are also at the heart of Carbios’ activities. Providing actionable solutions to support brands’ ambitious commitments for sustainable packaging and textile industries, Carbios has founded two consortiums: one in the packaging industry established with L’Oréal in 2019, which has since been joined by Nestlé Waters, PepsiCo and Suntory Beverage & Food Europe; another created in 2022 in the textile industry with apparel and fashion brands On, Patagonia, PUMA, PVH Corp. and Salomon. Together, the consortium members develop solutions promoting the recyclability and circularity of their products.

Joining the Ellen MacArthur Foundation’s Network takes Carbios’ circular economy actions one step further. Carbios recently underscored its commitment to circularity and environmental responsibilities by publishing its first Sustainability Report at the end of 2022^[1]. In 2019, Carbios’ biorecycling and biodegradable solutions were among the first innovations to be labelled “Efficient Solution” by the Solar Impulse Foundation^[2].

^[1] Cf. press release dated 15 December 2022
^[2] The Solar Impulse Foundation has identified over a thousand clean and profitable solutions that are economically viable and can be implemented on a large scale.

Sammlung, Aufbereitung und Wiedereinsatz von Sekundärrohstoffen funktionieren bei klassischen Rohstoffen wie Glas oder Stahl bereits sehr gut. Für einige Wertstoffströme müssen Recyclingtechnologien noch weiterer entwickelt werden, um eine ressourceneffiziente Kreislaufwirtschaft zu etablieren. Dazu gehören beispielsweise Kunststoffe oder Batterien. Die neue Informationssammlung des VDI Zentrums Ressourceneffizienz (VDI ZRE) „Innovative Recyclingtechnologien“ informiert u.a. über Abläufe, neue Entwicklungen in der Entsorgungs- bzw. Recyclingbranche und Förderprogramme für ausgewählte Rohstoffe.
 
Höhere Recyclingquoten sind notwendig, um mehr Wertstoffe im Kreislauf zu führen. Jedoch stellen heterogene Stoffströme, zersplitterte Lieferketten, aufwändige gesetzliche Vorgaben und weitere Faktoren eine effiziente Kreislaufführung vor Herausforderungen. Lösungen gibt es bereits. Einige innovative Recyclingtechnologien werden schon erfolgreich in der Praxis umgesetzt. Weitere sind im Forschungsstadium oder als Pilotprojekte in der Erprobung. Hier setzt die Online-Sammlung „Innovative Recyclingtechnologien“ des VDI ZRE an.

Mit innovativen Technologien Ressourcen sparen
In der Online-Sammlung werden für die Kategorien Kunststoffe, Batterien und Akkumulatoren, Elektrogeräte sowie PV-Module zunächst das Recyclingpotenzial und die Besonderheiten für eine Kreislaufführung aufgeführt. Ein Blick auf den Stand der Technik zeigt aktuelle Möglichkeiten und die Herausforderungen beim Recycling.

Die Vorstellung innovativer Recyclingtechnologien beleuchtet, wie Kreislaufwirtschaft für diese Stoffe ermöglicht, bzw. ressourceneffizient gestaltet werden kann. Viele konstruktive Ansätze sind jedoch noch im Forschungs- und Pilotstadium. Der Handlungsbedarf ist weiterhin hoch. Hier unterstützen weiterführende Informationsangebote z.B. bei der Suche z.B. Fördermöglichkeiten und Netzwerken.

Erstellt wurde die Online-Sammlung „Innovative Recyclingtechnologien“ im Auftrag des Bundesumweltministeriums. Sie wird regelmäßig erweitert. Abrufbar ist sie unter: www.ressource-deutschland.de/themen/kreislaufwirtschaft/innovative-recyclingtechnologien/

• Longer parking times for greater efficiency

Since 2018, Oerlikon Barmag has been offering the market’s only currently available concept for high-end home textile applications using the POY and DTY process. The spinning concept with the WINGS HD winding unit in conjunction with an automatic eAFK Big V Multispindle texturing machine manufactures high-titer yarns with maximum machine efficiency.
 
“We have correspondingly modified WINGS HD in order to once again better align the increased requirements of these special yarns to the spinning process and make everyday production even simpler for our customers”, comments Stephan Faulstich, POY Process Technology Manager. The parking times are extremely short when winding high titers. We have increased the parking times by up to three times in the case of the new WINGS HD models. To this end, the parking time for a 300d/384f yarn, for example, has been increased from a standard 6.5 min. to 15.7 min. – and, in the case of a 400d/192f yarn, from 4.3 min. to 10.3 min. This makes the doffing process more even, hence increasing doffing reliability.

At the same time, the draw unit now has a more flexible design, meaning that two-godet operation is also possible in the case of products with low overall titers. This has a positive impact on the winding unit’s energy consumption.

12 POY packages of up to 600d/576f (final) are produced in the spinning process using WINGS HD 1800. This is made possible as a result of an additional godet, which ensures that the high yarn tensions developing in the process are reduced to the yarn tensions common in the case of the winding process to date. At the same time, the newly-developed suction unit with the accompanying yarn cut-ting device (yarn collecting system) ensures – both during string-up and in the event of a yarn break – reliable handling of the yarn with an overall titer of 7,200 den (final).

Whereas DTY yarns up to 1,200 den and with up to 784 filaments have in the past, as standard, been plied from four POY 300d/192f bobbins using DTY machines, high titers can also be manufactured directly using the WINGS HD take-up machine. Combining the WINGS HD and the eAFK Big V allows all available winding positions to be utilized during texturing.

Freudenberg Performance Materials (Freudenberg) will present surfacing veils and core materials for lightweight fiber reinforced plastic (FRP) parts at JEC in Paris, France. Freudenberg will also be showcasing Enka® Solutions flow media and spacers for efficient vacuum infusion, resin transfer and foam injection molding processes for applications in the composites industry, etc. at the international composites show.
 
Freudenberg’s solutions for the FRP industry include a variety of glass, PAN and PET nonwovens, as well as core materials for the production of lightweight fiber reinforced plastic parts. These products are designed for anti-corrosion coatings in piping and tank construction, smooth UV resistant surfaces for facade panels, and other applications for a diverse range of end products. Products made from fiber reinforced plastics must be equipped with surfacing veils to provide abrasion resistance, corrosion resistance, smooth surfaces and mechanical strength. Freudenberg offers high-tech nonwovens that can meet these challenges.
 
Enka® Solutions products are characterized by their typical 3D entangled polymeric filament structures. Thanks to this structure, they are exceptionally suitable as flow media and spacers when producing composite materials.

Within its TEXTILE SOLUTIONS, the CHT Group has developed solution approaches for manufacturing companies in the textile value chain that have to use a lot of energy for their production. This is intended to compensate high energy costs and make a positive contribution to climate protection.Application specialists work with customers to develop individual savings potentials that are specifically tailored to the production facilities and requirements. Thus, depending on the process, fabric and machine, energy savings of up to 30% can be achieved with the use of innovative CHT textile auxiliaries, dyes/pigments and the corresponding process optimisations. In addition, the numerous concepts and optimally matched products can minimise water consumption or shorten the process time.

Energy-efficient cold bleaching instead of pad-steam bleaching processes in continuous pretreatment and the 4SUCCESS process for energy-efficient and resource-saving pretreatment and dyeing of cotton help to save energy. Likewise, the use of polymer binders, which do not require energy-intensive fixation, saves energy.

Efficient pretreatment with the new polymer technology CPT (Comb Polymer Technology) achieves good cleaning effects even with low liquor ratios and thus less water to heat up. To save costs for energy-consuming heating, there is also the gentle low-temperature fixation in the easy care finishing. The OrganIQ EMS Jeans system enables jeans finishing with a reduced application temperature compared to standard processes.

With TIME BOOST, a process for fast polyester dyeing processes, not only significant energy but also time savings are achieved by omitting pre-washing and by shortening heating and migration times. SHORT CUT also leads to shorter process times when dyeing polyamide.

To avoid cost-intensive intermediate drying, the CHT Group offers the SCREEN-2-SCREEN with PRINTPERFEKT S2S which facilitates printing in a wet-on-wet technology.

In addition to numerous other products, the CHT Group also offers its customers digital tools to optimally support process optimizations. The "BEZAKTIV Soaping Advisor" calculation program within the CHT Textile Dyes app can be used to evaluate and improve dyeing and soaping processes in a simple and target-oriented way.

By using a high share of recycled content in its Evolon® materials, Freudenberg Performance Materials (Freudenberg) offers technical packaging textiles with a carbon footprint decreased by 35%. An independent LCA study showed additional benefits such as energy resource savings and lower water use. Furthermore, Evolon® fabrics provide sustainability benefits over the packaging entire life cycle thanks to high end performance and durability.

By replacing virgin PET with recycled PET, the cradle-to-gate carbon footprint of Evolon® packaging textile materials decreased by 35%. This is the result of a study by an independent LCA and eco-design consultancy firm, which made a Cradle-to-Gate assessment of several Evolon® products using virgin PET or recycled PET. The study was finalized in 2022 and conducted according to the principles of ISO 14040/ ISO 14044 standards, following the recommendations of the Product Environmental Footprint and the Circular Footprint Formula.

Evolon® microfilament textiles have a small carbon footprint because their manufacturing process uses low CO2 energy sources. The fabrics are lightweight and can be reused throughout entire production programs, e.g. of a car model when it is about the automotive industry. Furthermore, the new Evolon® RE fabrics contain up to 85% of recycled PET which is produced in-house out of post-consumer PET bottles.

Evolon® textiles are suitable for reusable technical packaging, which eliminate the use of thousands of disposable packaging materials. Evolon® fabrics offer scratch-free, lint-free, high-end surface protection for molded plastic parts, painted parts and other sensitive industrial and automotive parts during transport. This contributes to lower the scrap rate of parts and provide both financial and ecological benefits. By using Evolon® reusable packaging to transport highly-sensitive parts, customers can increase their efficiency and save resources.

Toray Industries, Inc., announced that it has combined nanotechnology and fiber technology to create a cross-shaped polymethyl methacrylate (PMMA) nanopore fiber that efficiently adsorbs pathogenic proteins in the blood.

The company developed this fiber by employing its PMMA hollow fiber membrane spinning technology. Changing the nanopore size on the surface and inside the fiber makes it possible to control the types of protein that this material adsorbs. This could become a fundamental blood purification technology for a range of protein adsorption columns that cause diseases.

The fiber’s cross-shaped cross section has a larger surface area than fibers with round ones. This provides much better contact between the blood and fiber and significantly enhances protein adsorption efficiency.

Toray is the only company to have commercialized a PMMA hollow-fiber membrane artificial kidney for dialysis treatment. Its new nanopore fiber benefits from PMMA’s good protein adsorption and biocompatibility. Using the structural formation of a stereocomplex from two PMMA types entangled spirally during the spinning process to form the fiber shape, Toray made it possible for the fiber itself to develop pores of several to dozens of nanometers. Depending on the pore size, large proteins cannot go inside the pores. If they are too small, they are not trapped. This enables selective adsorption of moderately sized proteins trapped in pores.

The fiber pore sizes are adjustable to the diameters of target proteins for a range of diseases. These include inflammatory proteins in sepsis, autoantibodies in autoimmune diseases, and causative proteins in chronic illnesses. Toray’s technology is thus fundamental to developing disease-causing protein adsorption columns to purify blood.

Toray’s cross-shaped cross section suppresses inter-fiber adhesion, increasing the surface area per volume and enabling highly efficient protein adsorption. For blood purification applications, higher capacity adsorption columns increase blood removal amounts from the body, which can be especially stressful for the elderly and children. The new fiber’s highly efficient protein adsorption should contribute to compact, high-performance protein adsorption columns.

Textile companies could take full advantage of expanded print opportunities with EFI™ Reggiani textile solutions presented at the 8-13 December India ITME Exhibition in Greater Noida.

The EFI Reggiani TERRA Silver printer was shown at ITME 2022: a solution to enter the industrial printing segment with a short, smart and green process. The EFI Reggiani TERRA Solution eliminates the need for steaming or washing on direct-to-textile applications, using a greener, more efficient polymerisation process that takes place as the printed textile goes through the printer’s on-board dryer. As a result, users can achieve superior printing results while using less time, water, and energy.

The EFI Reggiani exhibit at ITME was also promoting:

•  EFI Reggiani HYPER printer, a scanning printer available in 1.8-metre, 2.4-metre or 3.4-metre widths that prints at up to 20 linear metres per minute peak speed, making it the fastest textile scanning printer on the market;
• Mezzera Concord, the continuous rope washing line from the specialist in washing solutions that transports fabric by overflow for tensionless running with an independent squeezing mangle for each channel;
• One of the industry’s broadest line-ups of high-end, superior-quality textile inks, including EFI Reggiani AQUA and EFI Reggiani Diamond reactive, IRIS dye-sublimation, ARIA direct disperse, FUOCO acid, and GEA and TERRA pigment inks; and
• Inèdit, recently acquired by EFI Reggiani, a developer of raster image processors (RIPs) and related software for digital industrial textile printing with their product portfolio that features proven, highly advanced workflow solutions for textile profiling, calibration, design integration and much more.

• Award for near-net-shape 3D meshes for use in fibre-reinforced plastics

As part of the JEC FORUM DACH 2022, the AVK Innovation Awards were presented in Augsburg on November 29th. The innovation price in the category "Research/Science" (first place) was awarded to the team of scientists Dipl.-Ing. Dominik Nuss, Dr.-Ing. Cornelia Sennewald and Prof. Dr.-Ing. habil. Chokri Cherif.

With the development of the pull-off-free Jacquard weaving technology including the technological know-how in the field of highly complex 2D and 3D fabric geometries, which has been established at the ITM of the TU Dresden for many years, Dominik Nuss has succeeded in including different yarn lengths locally into the fabric structure solely through targeted variation of the fabric weave. There-fore, it is now possible to produce completely new types of fabrics without additional draping, especially spherically curved fabrics, but also large-format spiral or even curved fabrics. The fact that the required near-net-shape geometry of the component to be reinforced can be reproduced with significantly reduced preforming steps is to be emphasized.

Continuous simulation aided engineering from CAD design to integrally woven 2D and 3D preforms by means of highly complex weave development for spatial constructions is a unique at the ITM, which was indispensable for the development of these promising woven high-tech structures. This technology is completely new and has never been carried out in this way before. The fabric structures are characterised by a high innovation level due to their geometric diversity and purposes. It can be used in numerous applications and further more contributes to the development of completely new fields of application. The technology can be implemented on all Jacquard weaving machines with only an additional device and the preform geometry is only determined by the control of the Jacquard machine. The preform geometry can be used in the full working width of the weaving machine.

Professor Chokri Cherif, Institute Director of the ITM, and his team are very pleased about these continuous research success in the constantly growing research field of 3D weaving technology, which are achieved at the ITM in close cooperation with industry and users. "This award is a special honour for our institute and confirms that the many years of our excellent research in the field of near-net-shape 3D weaving for the fibre-reinforced plastics sector plays a significant role and that we are making a significant contribution to the sustainable and resource-efficient production of lightweight structures with our development".

Trützschler Card Clothing (TCC), technology leader in the manufacture of high-performance card clothings for textile yarn processing, is expanding its site in Neubulach, Germany. With the twelve-million-euro investment, the supplier for the international textile machinery industry is expanding its production, warehouse and office capacities. A groundbreaking ceremony will take place during the coming winter.

The new building will expand the warehouse and logistics area by 600 square meters, to make a total area of 2,800 square meters. In the optimized cube of the new hall, a modern warehouse system will double the storage capacity. There will also be a fully automated warehouse for coils for sawtooth wires. During the construction phase, logistics and shipping will be temporarily outsourced to Pforzheim-Büchenbronn.

The move into the new building is planned for 2024. TCC will also expand the range of services and the production intensity at the site, while optimizing the process flows. Trützschler intends to recruit the additional employees required within a short timeframe by hiring new staff and offering apprenticeships at the Neubulach site. TCC employs more than 130 people in Germany, with a further 220 people employed worldwide at locations in Brazil, China, India, Mexico, Turkey and the USA.

Overall, the production area will be expanded from 4,000 to 5,400 square meters. This will enable the process flows to be optimized. The office space will be increased to 1,000 square meters. An additional level of the building will provide modern workplaces for administration and sales.

The new building will also improve access and exit routes for truck traffic. This will provide considerable relief for the local neighborhood in terms of noise emissions and other factors. Good integration into the region is very important to Trützschler. All contracts for planning, construction and air conditioning technology have been awarded to local companies.

In the future, TCC will operate its production facility in Neubulach in a climate-neutral manner. This will contribute important progress toward achieving the ambitious climate goals of the Trützschler Group. The new production facility will meet the highest requirements for energy efficiency and climate protection. Heating is provided by process heat recovery and geothermal energy. In addition, the company produces green electricity via its own solar panels.

"By expanding our business here in Neubulach, we are strengthening our presence in this area and our leading global market position too," says Managing Director Peter Gäbler. The Trützschler Group SE is also investing in India to build a new site with over 100,000 square meters for the Spinning, Card Clothing and Nonwovens business units. "It is important to be close to the customer worldwide because our foreign companies make a significant contribution to the success of the Group," says Gäbler.

TCC achieved another record sales result in 2021. Demand for the technology components for carding fibers in spinning mills and for carding in nonwovens production has increased significantly. The steel sawtooth wires, which are wound onto coils and produced for customers around the globe, eventually get worn down by use in production processes – so it is necessary to replace them regularly. For this reason, further growth is expected in 2022 and beyond.