From the Sector

Hologenix, creators of Celliant®, infrared responsive technology, and Kelheim Fibres, a world-leading manufacturer of viscose specialty fibers, have partnered to launch Celliant Viscose at ISPO Munich 2021. Celliant Viscose is a finalist in Best Products by ISPO and will be showcased in the Fibers & Insulations Category for ISPO Textrends, where realistic views and 3-D simulations will be available for each material.

The introduction of nature-based Celliant Viscose will be the first in-fiber infrared sustainable solution on the market and meets a consumer demand for more environmentally friendly textiles. An alternative to synthetic fibers and extremely versatile, Celliant Viscose blends beautifully with cotton, micromodal, lyocell, wool varieties including cashmere. It also has many applications across industries as it is ideal for performance wear, luxury loungewear, casual wear and bedding.

Celliant Viscose features natural, ethically sourced minerals embedded into plant-based fibers to create infrared products that capture and convert body heat into infrared, increasing local circulation and improved cellular oxygenation. This results in stronger performance, faster recovery and better sleep.

Celliant Viscose provides all the benefits of being a viscose fiber — lightweight, soft, highly breathable, excellent moisture management — as well as fiber enhancements from Celliant infrared technology. Celliant’s proprietary blend of natural minerals allows textiles to capture and convert body heat into full-spectrum infrared energy, resulting in stronger performance, faster recovery and better sleep. In addition, Celliant is durable and will not wash out, lasting the useful life of the product it powers.

An Affordable, Long-lasting Solution with Diverse Applications
As opposed to other IR viscose products which are coatings based, Celliant Viscose’s in-fiber solution increases wearability and longevity with a soft feel, durability from washing and longer life. The combination of Kelheim’s distinctive technology and the Celliant additives creates this unique fiber that provides full functionality without the need for any additional processing step — a new standard in the field of sustainable IR viscose fibers. This single processing also makes Celliant Viscose more cost-effective and time-efficient than coatings.

In addition, Kelheim’s flexible technology allows targeted interventions in the viscose fiber process. By modifying the fiber’s dimensions or cross sections or by incorporating additives into the fiber matrix, Kelheim can precisely define the fiber’s properties according to the specific needs of the end product.

Highly Sustainable
Celliant Viscose is a plant and mineral-based solution for brands seeking an alternative to synthetic fibers. It contains natural raw materials that are from the earth and can return safely to the earth.

Nature-based Celliant Viscose is certified by FSC® or PEFC™, which guarantees the origin in sustainably managed plantations, and is part of the CanopyStyle initiative to protect ancient and endangered forests. The production of Celliant Viscose takes place exclusively at the Kelheim facilities in Germany, complying with the country’s strict environmental laws and guaranteeing an overall eco-friendly product.

Backed by Science
Celliant is rigorously tested by a Science Advisory Board composed of experts in the fields of physics, biology, chemistry and medicine. The Science Advisory Board has overseen 10 clinical, technical and physical trials, and seven published studies that demonstrate Celliant’s effectiveness and the benefits of infrared energy.

For more information, visit www.celliant.com/celliant-viscose/

• Leading Turkish textile printing company Hamle has installed a new Monforts Thermex dyeing range as part of its ongoing strategy of continuous investment.

“Investment in new technology and capacity expansions are very important to us, in order to stay ahead in terms of sustainable, high quality production,” says general manager Gürkan Uzuner. “We carefully assess the benefits of each advanced new technology in order to thrive in a sector that is constantly changing.

“The Zara Group is a major European customer for us, along with well-known Turkish brands such as LCW and De-Facto, and it’s no accident that Çorlu, due to its proximity to Istanbul and the ease of supplying to Europe, has become the epicentre of Turkish textile production. The quality of textiles coming from the region is now very well proven.”

Integration

Hamle’s plant in Çorlu already houses a Monforts ten-chamber Montex stenter and two Monforts sanforizing ranges on which the company carries out an extensive range of finishing processes. The new Thermex range further integrates a number of processes on technology all from a single supplier. The Thermex universal hotflue for continuous dyeing, condensing and thermosoling achieves unrivalled reliability even at maximum fabric speeds, for exceptional cost-effectiveness when dyeing both large and small batches of woven fabrics. The new range installed for Hamle benefits from the Econtrol® process* for reactive dyestuffs. This is quick and economical one-pass pad-dry and wash off process, with drying in the hot flue at 120-130°C and controlled humidity (25-30% by volume) to obtain fixation in 2-3 minutes.
Econtrol® ensures excellent reproducibility of all colours, improved dye penetration on difficult fabrics and no risk of the browning of cotton or other cellulose fibres due to the low fixation temperature.

As such, it is the ideal process for fast change technology and operational savings. “The new Thermex range has some very advanced automation features which ensure our machine operators have full control over the entire system,” Mr Uzuner concludes. “ As the Monforts representative in Turkey, Neotek has been our solution partner in the installation and commissioning and has been with us every step of the way.
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* Econtrol® is a registered mark of DyStar Colours Distribution GmbH, Germany.

Neumünster – Success is built by connecting the right people with the right product. In a global marketplace, this means collaboration is just as important as competition. Companies need to focus on their strengths, while finding practical ways to innovate and expand upon their capabilities.

An exclusive license from Procter & Gamble offers the best for nonwovens

In order to do so, working together often makes the most sense. This is what motivated Procter & Gamble and Oerlikon Nonwoven – Teknoweb Materials to agree on an exclusive license agreement to market and sell the Phantom platform worldwide.

The patented process for hybrid nonwovens combines the best of both airlaid and spunmelt technologies to deliver new, flexible ways of creating wet and dry wipes. Phantom technology offers additional benefits by reducing resources and cost, while increasing overall performance. The exclusive license gives Oerlikon Nonwoven – Teknoweb Materials distribute this technology worldwide. In addition, Oerlikon Nonwoven – Teknoweb Materials have further refined the process into their own Levra technology – an entry-level option which offers tailored production volumes with lower investment costs but is still suitable to be upgraded to the premium Phantom model in the future.

Quality products that cost less

Essentially, Phantom technology was developed to produce hybrid substrates. The spunmelt and airlaid processes are merged into one step to combine cellulose fibers, long fibers such as cotton, or even powders with polymer fibers in unprecedented ways. This technology has clear advantages in terms of resources, performance, and cost compared to the previous processes on the market. By removing hydroentanglement, it is no longer necessary to dry the material. Adjusting the process can optimize relevant product characteristics such as softness, strength, dirt absorption, and liquid absorption. In the end, this even increases the quality of the product itself.

The greater freedom for formulating continuous and discrete fibers allows for more flexible and absorbent structures and highly textured materials. Wipes feel softer to the touch while providing more protection for the hands. Up to 90% of the material can consist of pulp fibers, although natural alternatives like cotton or synthetic fibers can be added to the mix.

Phantom technology has not only found a practical application in a variety of wipes – such as hygiene wipes, anti-bacterial wipes, surgical wipes, or industrial wipes – but also in absorbent cores, for instance indiapers or fempro products. With so many applications, Oerlikon Nonwoven – Teknoweb Materials are fully prepared to deliver Procter & Gamble’s innovative Phantom technology to the global nonwovens market.

Rester Oy, which is developing the plant in Paimio, recycles companies' end-of-life textiles, and Lounais-Suomen Jätehuolto Oy (LSJH), which will hire a production area at the same facility, processes households' end-of-life textiles. The plant will process 12,000 tonnes of end-of-life textiles every year, which represents about 10% of Finland’s textile waste.

The textile industry’s end-of-life textile problem is intolerable. Natural resources are increasingly used to manufacture products, but these materials are lost at the end of their life cycle. About 100 million kilograms of textile waste are generated annually in Finland alone. Reusing this material could reduce the textile industry’s carbon footprint and significantly reduce the use of natural resources.

Rester Oy and LSJH will drive the textile sector towards a circular economy and begin processing textile waste as an industrial raw material. The Nordic countries’ first industrial end-of-textile refinement plant will open in Paimio in 2021. The 3,000-square-metre plant is being developed by Rester Oy, which recycles companies' end-of-life textiles and industrial waste materials. LSJH, which processes households’ end-of-life textiles on its production line, will hire part of the plant.

Outi Luukko, Rester Oy’s board chair, says, “The processing plant will begin a new era of textile circular economy in Finland. As industry pioneers, we are launching a system change in Scandinavia. The transition of the textile industry from a linear model to a circular economy is essential, as virgin materials cannot sustain the current structure of the textile industry. And why should it, when there is so much recyclable material available?”

From the perspective of Rester Oy’s main owner, work clothing supplier Touchpoint, the circular economy plant not only represents resource efficiency, but is also necessary from the perspective of the entire life cycle of a responsible work clothing collection.

Luukko adds, “Finding a local solution to a global problem is a huge leap in the right direction and raises Finland's profile as a pioneer of circular economy."

The future plant will be able to process 12,000 tonnes of end-of-life textiles annually, which represents about 10% of Finland’s textile waste. Both production lines produce recycled fibre, which can be used for various industrial applications, including yarn and fabric, insulating materials for construction and shipping industries, acoustic panels, composites, non-woven and filter materials, and other technical textiles, such as geo-textiles.

LSJH is piloting a full-scale refinement plant

LSJH has launched a pilot production line for processing households' end-of-life textiles. Unfortunately, consumers' end-of-life textiles are heterogeneous, making them a challenging raw material for further processing. Before processing, the textiles are sorted by material into various fibre classes using optical identification technology developed by LSJH and its partners. This ensures the quality of the raw material and the resulting fibre products.

Jukka Heikkilä, managing director for Lounais-Suomen Jätehuolto, explains: “On the basis of the experiences gathered from the pilot project, Lounais-Suomen Jätehuolto is preparing a full-scale refinement plant in the Turku region. As soon as 2023, the plant will process Finnish households' end-of-life textiles. The project involves all waste treatment plants owned by Finnish municipalities.”

Paimio has ambitious goals for circular economy companies

Rester’s initiative aims to create a circular economy cluster in Paimio that combines the processing and reuse of end-of-life textile fibres. Paimion Kehitys Oy, which is owned by the City of Paimio and the local association of enterprises, supports the development of circular economy companies in Paimio.

Mika Ingi, managing director for Paimion Kehitys Oy, says, “We want to step out of our traditional municipal role and create significant added value for everyone taking part. That is why we are involved in the development of a new modern service model based on ecosystem thinking. We are piloting the textile cluster, followed in the coming years by clusters focusing on plastic, construction, and energy. The aim of our service is to support and help develop new profitable business by bringing circular economy companies and their potential customers to innovate together."

The foundation stone of the processing plant was laid today (18 August 2020). The processing plant will begin operations in February 2021.

SGL Carbon and Solvay collaborate to develop highly-competitive advanced carbon fiber composites for aerospace primary structures

SGL Carbon and Solvay have entered into a joint development agreement (JDA) to bring to market the first composite materials based on large-tow intermediate modulus (IM) carbon fiber. These materials, which address the need to reduce costs and CO2 emissions, and improve the production process and fuel efficiency of next-generation commercial aircraft, will be based on SGL Carbon’s large-tow IM carbon fiber and Solvay’s primary structure resin systems.

The agreement encompasses both thermoset and thermoplastic composite technologies. It builds on Solvay’s leadership in supplying advanced materials to the aerospace industry and SGL Carbon’s expertise in high-volume carbon fiber manufacturing.

“For Solvay, this is an opportunity to lead the aerospace adoption of a composite material based on 50K IM carbon fiber. This is a highly competitive value proposition that brings more affordable high-performance solutions to our customers. We see this as the first step in a long-term partnership,” said Augusto Di Donfrancesco, member of Solvay’s executive committee.

“By combining SGL’s carbon fiber expertise in our newly developed, unique 50K IM fiber with Solvay’s resin formulation and aerospace market expertise, both partners are aiming to develop an advanced aerospace material system. This alliance supports our strategic direction and accelerates our growth in the attractive aerospace market,” said Dr. Michael Majerus, spokesman of the management board of SGL Carbon.

Composite materials for aerospace applications represent a multi-billion-dollar market that is expected to grow strongly in the coming decade. Solvay and SGL Carbon are uniquely positioned to develop solutions to address the needs of this market.

• Construction of a new air purification and sulfur recovery plant
• Further improvement of the exhaust emission values at the Lenzing site
• Important step in achieving the CO2 targets of the Lenzing Group

Lenzing – The Lenzing Group is a global leader in the climate-friendly and sustainable production of wood-based textile fibers. Lenzing announced its climate targets in August of this year. By 2030, the company aims to reduce its specific CO2 emissions per ton of manufactured pulp and fibers by 50 percent. By the year 2050, the Lenzing Group will no longer generate any net CO2 emissions.

Lenzing‘s Management Board has now resolved to invest EUR 40 mn to expand the production of the raw material sulfuric acid at the Lenzing site. This comprises an important milestone on the path towards climate neutrality. In the future, a new air purification and sulfur recovery plant will not only optimize the company’s self-sufficiency for this raw material and enhance process reliability but improve environmental protection within the context of a clear forward-looking strategy.

Improved exhaust emission performance

The new plant represents an important contribution towards implementing the sustainability strategy of the Lenzing Group, and also helps to ensure an even higher level of environmental compatibility of all production operations at the Lenzing site. The application of state-of-the-art technologies will further improve exhaust emission values. Furthermore, the new facility will help further reduce the use of fossil fuels by generating steam which will, in turn, be converted into electricity. In this way, it will also support the energy self-sufficiency of the company’s operations in Lenzing.

Improved CO2 scorecard

As a result, the production plant in Lenzing will reduce its annual CO2 emissions by 15,000 tons. This is an important step towards further advancing the company’s ambitious plans in the coming years and also strengthen Lenzing’s leadership role as a driver of ecologically sustainable industry. “On the basis of these investments, Lenzing is taking the next step in achieving its climate targets. At the same time, it will also reach a significantly higher level of autonomy with respect to a vital raw material”, states Stefan Doboczky, Chief Executive Officer of Lenzing.

partner confirms start-up date of the project in Thailand

With the recently announced plans to establish a lyocell production facility in Thailand, the Lenzing Group is taking an important step in meeting the strong demand for lyocell fibers and is further strengthening the company´s position as an industry leader in the specialty cellulosic fibers market. The proposed plant will be the largest lyocell plant in the world, with an annual capacity of 100,000 tons. The total investment volume for the first production line, including infrastructure and site development, amounts to approximately EUR 400 million. Up to four such lines can be potentially integrated and operated on the site. The project is of great importance to Lenzing as it is the first step in bringing lyocell production to Asia, featuring the largest markets, the most important customers and the most extensive growth potential in specialty fiber production.

The innovative technology addresses the growing need for on-demand textile design and production

Kornit Digital, a global market leader in digital textile printing innovation, has announced the introduction of the new Kornit Presto, the only industrial single-step solution for direct-to-fabric printing. The Kornit Presto solution eliminates the need for pre and post treatment of fabric and allows for high-quality printing on a broad variety of fabric types and applications. The Kornit Presto does not consume water in the printing process, making it a environmentally friendly solution.

The new Kornit Presto comes with the NeoPigment Robusto, a Pigment-based ink. Implemented into the Kornit NeoPigmentTM process, the Robusto provides above industry standard wash and rub results and exceptional color fastness across a wide fabric and application range. The Robusto enjoys faster physical and chemical bonding characteristics, enabling a significantly shorter curing time, while providing quality and a wide color gamut.

The Kornit Presto solution suits a wide range of business and application needs in a variety of industry segments, including fast growing segments within the on-demand fashion and home décor markets. It is a highly productive solution, available in multiple configurations and able to print 450 square meters per hour.

Gart Davis, CEO at Spoonflower, the world’s first web-based service for custom, on-demand fabric and design creation and a long-time Kornit customer, commented, “We were thrilled to be able to test the new system and found the Presto to be in a class by itself; it prints beautifully on all kinds of fabrics, in a single-step, with an environmentally friendly dry process, and now at a multiple of productivity.  Our partnership with Kornit continues to be fundamental to our mission to make custom fabric accessible to designers, creative individuals and small businesses all over the world. We can’t wait to get going.”

• Hexcel’s Composite Innovations For Aerospace, Automotive, Energy And Marine Applications At JEC World 2019 Hall 5 - Stand J41

STAMFORD, Conn. – At this year’s JEC World taking place in Paris on March 12-14, Hexcel will promote a wide range of composite innovations for customer applications in aerospace, automotive, energy and marine markets.

Aerospace Innovations

Hexcel’s HiTape® and HiMax™ dry carbon reinforcements were developed to complement a new generation of HiFlow™ resin systems, producing high quality aerospace structures using the resin infusion process. HiTape® was developed for the automated lay-up of preforms and HiMax™ is a range of optimized non-crimp fabrics (NCF). Both products incorporate a toughening veil to enhance mechanical properties, meeting the structural requirements for aerospace parts.

Visitors to JEC will see an Integrated Wing Panel demonstrator and an I-beam, both made with HiTape® reinforcements, and an Opticoms rib made with HiMax™ NCF. The Opticoms rib and I Beam were both manufactured using C-RTM (Compression Resin Transfer Molding). They were injected with Hexcel’s RTM6 resin in a process taking less than 5 minutes. The total manufacturing cycle for both parts was just 4.5 hours.

Also among the Aerospace exhibits, Hexcel will display a composite petal for a satellite antenna, manufactured by Thales Alenia Space Italia. The petal is part of a set of 24 deployable structural elements that form the large area reflector assembly used on board Low Earth Orbit (LEO) observation satellites. Thales Alenia Space Italia selected Hexcel’s HexPly® M18 prepreg for this application, acknowledging the superior mechanical and outgassing properties provided.

Another Hexcel prepreg application on show is a “zero” frame, manufactured by Aerofonctions for the engine area of Daher’s TBM 910/930 single-engine turboprop aircraft. Hexcel’s HexPly® M56 prepreg was selected by Daher for the “zero” frame – a product developed for Out of Autoclave applications that provides the same high quality and performance as autoclave-cured prepregs, from a simple vacuum bag cure in an oven.

With 50 years of experience behind its comprehensive range of high-strength, high-strain PAN-based carbon fibers, Hexcel continues to innovate, and is introducing two new fibers to its portfolio. HexTow® HM50 combines high modulus and high tensile strength, making it ideal for commercial and defense aircraft and engines. HexTow® 85 was developed specifically to replace rayon-based carbon fiber for ablative applications.

HexTow® carbon fiber holds the most qualified carbon fiber positions on aerospace programs in the industry and is the best unsized fiber available on the market. It provides excellent bonding interfacial properties with thermoplastic matrices and is the best-performing fiber for 3D printing applications.

Additive manufacturing is another area of expertise for Hexcel, using PEKK ultra-high performance polymers and HexAM™ technology to manufacture carbon-reinforced 3D printed parts. This
innovative process provides a weight-saving solution for intricate parts in highly demanding aerospace, satellite and defense applications. HexPEKK™ structures offer significant weight, cost and time-to-market reductions, replacing traditional cast or machined metallic parts with a new technology.

Hexcel is well known for its range of weight-saving, stiffness-enhancing honeycombs and the company adds value by providing a range of engineered core solutions to customers from facilities in the USA, Belgium and the newly opened Casablanca plant in Morocco. Hexcel’s engineered core capabilities enable highly contoured parts with precision profiling to be produced to exacting customer specifications. An example of such a part will be on display at JEC. Made from Aluminum FlexCore®, the part is CNC machined on both sides, and formed and stabilized with both peel ply and flyaway layers of stabilization. Aircraft engines benefit from a number of Hexcel core technologies including HexShield™ honeycomb that provides high temperature resistance in aircraft engine nacelles. By inserting a thermally resistant material into honeycomb cells, Hexcel provides a core product with unique heat-shielding capabilities that allows for the potential re-use of material after a fire event.

Hexcel’s Acousti-Cap® broadband noise-reducing honeycomb significantly improves acoustic absorption in aircraft engine nacelles. The acoustic treatment may be positioned at a consistent depth and resistance within the core, or can be placed in a pattern of varying depths and/or resistances (Multi-Degrees of Freedom and 3 Degrees Of Freedom), offering an acoustic liner that is precisely tuned to the engine operating conditions. These technologies have been tested at NASA on a full engine test rig and meet all 16 design conditions without trade-offs.

HexBond™ – the new name in Adhesives

Hexcel’s range of high performance adhesives has expanded considerably following the company’s acquisition of Structil. The company has now decided to unite the range by marketing all of its adhesive products using HexBond™ branding. The comprehensive range of HexBond™ structural film adhesives, foaming adhesive films, paste adhesives, liquid shims, epoxy fillets and Chromium free liquid primers is suitable for a wide range of applications in combination with Hexcel’s prepreg and honeycomb products.

Automotive Innovations

Hexcel’s carbon prepreg patch technology provides an innovative way of locally stiffening and reinforcing metal parts, providing noise and vibration management functionality. HexPly® prepreg patches consist of unidirectional carbon fiber impregnated with a fast curing epoxy matrix that has self-adhesive properties, enabling it to bond to metal in a highly efficient one-step process. These key technology properties are demonstrated in an 18.5kg aluminum subframe (that is 50% lighter than steel equivalents), which was reinforced with 500 grams of HexPly® prepreg and tested by Saint Jean Industries. The part demonstrates a significant reduction in noise, vibration and harshness (NVH). Other benefits include lower production costs, energy savings, increased driver comfort, production flexibility and part count reduction. With this technology Hexcel is a finalist in the JEC Innovation Awards 2019 in the Automotive Applications category.

HexPly® prepreg patch technology was also applied to a hybrid side sill demonstrator developed with Volkswagen and Dresden University to address future crash test requirements, specifically for electric cars. Combining fiber-reinforced plastic (FRP) with metal, the hybrid construction allows for optimum performance including weight savings, enhanced safety, increased energy absorption, battery protection in a crash situation and production flexibility.

Hexcel will also display a lightweight CFRP transmission crossmember produced from Hexcel’s high performance HexMC®-i 2000 molding compound. The transmission crossmember was developed in partnership with the Institute of Polymer Product Engineering (at Linz University), Engel and Alpex. As the part connects the chassis together and supports transmission it has to be stiff and strong, resisting fatigue and corrosion. Hexcel’s HexMC®-i 2000 was selected as the best-performing molding compound on the market, curing in as little as two minutes to produce lightweight, strong and stiff parts.
To produce the transmission crossmember HexMC®-i 2000 preforms are laid up in Alpex molds and compression-molded in a v-duo press that was tailored for the application by Engel. Ribs, aluminum inserts and other functions can be molded into the part using the single-stage process, reducing component-count. Any offcuts from the preforms can be interleaved between the plies of material to provide additional reinforcement in key areas - meaning that the process generates no waste.

Other Automotive promotions on Hexcel’s stand at JEC World include a composite leaf spring manufactured by ZF using HexPly® M901 prepreg. In contrast to steel leaf springs, composite versions offer many advantages including weight savings of up to 70%, high corrosion resistance, optimized system integration and superior performance. HexPly® M901 prepreg reduces the cure cycle to below 15 minutes and provides 15% higher mechanical performance, with enhanced fatigue properties. It also operates at high temperatures, providing a Tg of up to 200°C following a post cure.

Marine Innovations

Hexcel has a comprehensive range of products aimed at racing yacht and luxury boat builders that include America’s Cup, IMOCA class and DNV GL-approved prepregs, woven reinforcements and multiaxial fabrics for hull and deck structures, masts and appendages.

At JEC World Hexcel will display an IMOCA yacht mast manufactured by Lorima using HexPly® high modulus and high strength carbon fiber prepreg from Hexcel Vert-Le-Petit. Lorima is the exclusive official supplier of masts for IMOCA 60 class racing boats.

Hexcel’s HexTow® IM8 carbon fiber has been selected as the highest performing industrial carbon fiber on the market and will be used by spar and rigging manufacturer Future Fibres to manufacture their AEROrazr solid carbon rigging for all the teams in the 36th America’s Cup.

Hexcel’s HiMax™ DPA (Dot Pattern Adhesive) reinforcements are non-crimp fabrics supplied pre-tacked, allowing multiple fabrics to be laid-up more easily in preparation for resin infusion. Providing an optimal, consistent level of adhesion, they allow a faster and more consistent resin flow, as well as eliminating the use of spray adhesive for a healthier working environment and lower risk of contamination. Simply unrolled and applied to the mold or core layer before the introduction of resin, HiMax™ DPA fabrics are widely used in boat building, where lay-up times can be reduced by up to 50%.

Wind Energy Innovations

Hexcel has developed a range of HexPly® surface finishing prepregs and semi-pregs for wind turbine blades and marine applications. Providing a tough, durable and ready-to-paint surface without using in-mold coats, these products shorten the manufacturing cycle and reduce material costs. HexPly® XF2(P) prepreg is optimized for wind blades and has a ready-to-paint surface, straight from the mold, saving at least 2 hours of takt time.

Polyspeed® pultruded carbon laminates were developed for load-carrying elements in a blade structure and are manufactured with a polyurethane matrix that provides outstanding mechanical performance in terms of stiffness and durability. The blade manufacturing process is optimized, with increased throughput. The pultruded laminates are supplied in coils as continuous cross section profiles.
HiMax™ non-crimp fabrics using E-glass, high modulus glass and carbon fibers are also available in a wide range of unidirectional, biaxial and triaxial constructions. HiMax™ fabrics have applications throughout the turbine, from the stitched carbon fiber UDs used in the main structural elements, to glass fabrics and hybrids for blade shells and nacelles. There are also specialist applications such as lightweight fabrics for heated leading edge de-icing zones.

Trevira, one of the market leaders in polyester yarn manufacture, and the development services company imat-uve have together achieved a milestone in textiles design: the use of 3D flat knitting technology for automotive interiors. In a jointly developed process that unites innovative yarn technologies with cutting-edge connection and finishing techniques, Trevira and imat-uve have found a way of producing anatomically contoured seat covers and trim components for vehicle interiors. Why is this important? The answer lies in the way it's done. Because the technology uses just one knitting process rather than several, manufacturers can reduce their production and materials costs, as it's no longer necessary to cut and assemble the fabrics. But the new invention is not just cost-effective – the flat knitting technique means that it's now possible to personalise design and function to a much greater degree, representing another important step in the direction of on-demand production.

Trevira and imat-uve are the first companies to develop such a sophisticated application of the knitting process for use in vehicles, thanks to imat-uve’s innovative processing and finishing technique which deploys a low-melt yarn specifically developed by Trevira. The collaboration has resulted in a high-performing knitted product which satisfies even the most demanding criteria in terms of quality and comfort. The VDA 230-210 standard velcro test carried out by imat's testing laboratory found that the product was extremely abrasion resistant. The 3D flat knitting technology even means that areas known to be vulnerable, such as the seams on seat covers, can be strengthened in the course of the same single knitting process. Another benefit of the technology is its contribution to sustainable manufacturing. Not only does it work on the zero waste principle, but the knitted fabric itself is manufactured entirely from yarn made from PES recyclates.

Thomas Rademacher, Head of Development at Trevira, explains why the collaboration was so successful. "The development company imat-uve came up with a new breakthrough technology, while here at Trevira, we contributed our own recycled yarns and a new low-melt yarn we've developed based on synthetic fibres, which provides a stabilising effect. Together we have created a highly sought-after, top quality product for automotive interiors. Flat knitting will now be the go-to technology for vehicle interiors – in the future, it will be impossible to imagine life without it."

Hans Peter Schlegelmilch, imat-uve’s CEO, pointed out the especial benefits of the new technology for vehicle manufacturers and their suppliers. "The 3D flat knitting technology doesn't just make it possible to save time and money on production. It also opens up a whole new world of personalisation for end consumers. We are extremely pleased that with Trevira as our partner, we have been able to take this significant step towards the future of automotive interiors."