From the Sector

Hexcel announces its latest HexPly® XF surface technology that reduces shell manufacturing time within the wind blade surface finishing process. HexPly XF increases overall blade manufacturing efficiency by reducing time in the mold by up to two hours and by banishing surface defects that require rework before painting.

Hexcel’s HexPly XF surface technology has been formulated to address the limitations of current blade shell surfacing techniques whereby pinholes and other surface defects have to be repaired by hand to achieve the perfectly smooth surface required for painting.

HexPly XF surface technology introduces a new material format as the surface finishing layer, eliminating the need for a traditional in-mold gel coating process. HexPly® XF for infused rotor blades, is a lightweight non-woven semi-preg construction, comprising an epoxy resin matrix, that co-cures with standard epoxy infusion systems. The product has a successful track record in prepreg blades and has now been adapted for infusion processes.

Easy to handle and supplied in a ready to use roll form, HexPly XF can be quickly applied by hand or with semi-automated layup equipment. It features one self-adhesive, surface finishing side - indicated by a removable protective foil. This side of the prepreg is placed against a release agent treated mold surface. Once the material has been positioned, the lay-up of the blade shell structure can start immediately, and the laminate can be infused. After curing, the blade is de-molded with the manufacturer benefitting from a pinhole-free surface that needs minimal preparation before painting.

HexPly XF material is less than half the weight of a typical gel coat per square meter, reducing the overall weight of the blade. Additionally, the consistent areal weight and thickness of the prepreg film provide a completely uniform surface coating, ensuring blade weight distribution and balance are maintained, which is critical as rotor diameters continue to increase. With no need to handle or mix liquid chemicals as in the gel coat process, HexPly® XF also improves the health and safety working conditions on the shop floor.

The material has a shelf life of six weeks at ambient temperature, which also minimizes cold storage requirements and helps to reduce scrap.

Sicomin announces its latest collaboration with GREENBOATS® as they deliver the first ever natural fibre composite (NFC) nacelle for an offshore wind turbine.  

With more than 2.5 million tons of composite materials in use in the wind industry globally, and the first generation of wind turbines now approaching end of life, there is still a lack of well-established recycling options. GREENBOATS’ mission is to demonstrate how large-scale NFC structures in wind energy can lower energy consumption in manufacturing and significantly improve the sustainability of the composite materials used in the turbine.

In 2020, GREENBOATS was commissioned by a leading wind energy technology developer to design and manufacture a sustainable NFC nacelle. The resulting 7.3m long structure has a surface area of approximately 100m2 and was engineered by GREENBOATS to satisfy all DNV-GL load cases required for an offshore turbine nacelle, including 200km/h max wind loads and 2KN loads on the guard rails.

Sicomin’s market leading GreenPoxy® range met these challenging engineering requirements, with the company’s recently expanded manufacturing capability also matching the potential supply volumes required by wind turbine manufacturers.  

Sicomin’s DNV-GL type approved bio-based epoxy was used to infuse BComp flax fibre reinforcements and balsa cores, with Sicomins’ intumescent weatherproof gelcoat applied on the outer surface. Cured panels were cut to shape, formed over a male plug and bonded together, before flax reinforcement plies, hand laminated with GreenPoxy resins and vacuum bagged, were added along all the panel joints lines.  Finally, Sicomin’s highly UV resistant clear coating products were used to protect and enhance the finish of the flax fibre feature stripe details.

Royal DSM announces that its DSM Engineering Materials business will launch mass-balanced bio-based Arnitel®, a thermoplastic elastomer, together with Sympatex Technologies. In this way, DSM Engineering Materials is taking the next step on its sustainability journey and enabling its customers to transition to a more circular and bio-based economy.

To address growing consumer and legislative demand for lower carbon footprint and more sustainable feedstock, the sports and apparel value chain is increasingly integrating bio-based materials into its designs. By offering a new range of mass-balanced bio-based Arnitel®, DSM Engineering Materials is enabling membrane manufacturer, Sympatex Technologies to meet these demands and make more sustainable choices.

DSM’s bio-based Arnitel® is manufactured with bio-based feedstock using a mass-balance approach¹. The end product contains more than 25% bio-based content by weight.

Sympatex uses Arnitel® to manufacture its waterproof, windproof, and breathable membranes for sports applications. The transition to bio-based feedstock will maintain the unique functional properties of Arnitel® and will enable Sympatex to easily shift to a more sustainable solution with a lower carbon footprint without having to requalify materials.

¹ Mass balance accounting is a well-known approach that has been designed to trace the flow of materials through a complex value chain. The mass balance approach provides a set of rules for how to allocate the bio-based and/or recycled content to different products to be able to claim and market the content as ‘bio’-based or ‘recycled’-based. Source: Ellen MacArthur Foundation (Mass Balance White Paper).

Reinach, Switzerland, and Westlake, Ohio, 2 February 2021 - Archroma, a global leader in specialty chemicals towards sustainable solutions, today announced a strategic partnership with technology innovator CleanKore, aiming to advance sustainable dyeing processes throughout the denim supply chain.

The agreement will allow Archroma and CleanKore to promote the benefits of each other’s technologies. This includes Archroma’s robust catalog of dyes and specialty chemicals along with CleanKore’s patented process of dyeing yarns at the denim mill that completely eliminates the need for potassium permanganate (PP) spray and laser booster to achieve the bright white abrasion effect in the garment finishing process. The result is a large and circular bright white core with a small ring of indigo dye. The technology does not just eliminate the chemicals associated in the PP spray and laser process, which is much safer for denim workers, it also allows to save significant amounts of water and energy throughout the manufacturing process from fabric to garmenting.

CleanKore initially looked at eliminating potassium permanganate due to its being classified as hazardous if inhaled or ingested, or in case of contact with the skin or the eye. It is also considered very toxic to aquatic life. No new equipment or capital expenses are needed to implement the CleanKore technology, which works on all denim fabric, including dark indigo, sulfur top/bottom and sulfur black.

This is where Archroma comes into the picture. Its global technical team of denim coloration specialists will provide support to denim mills seeking to implement the CleanKore technology and develop the desired looks and effects - with the right colors and chemical systems for their production set-up.

CleanKore estimates that the technology allows to save up to 15 liters of water per garment, or the equivalent to the drinking needs of 5 people per day, and up to 0.51 kWh of energy per garment, or the equivalent of five 100-watt light bulbs on for 1 hour. The CleanKore technology also leads to a 10% to 20% increase in production throughput, as a result of a faster garment wash-down and the elimination of PP spray.

For CleanKore CEO Darryl Costin Jr., the announcement comes at an ideal time for CleanKore: "We have successfully proven the technology with mill partners such as Arvind and other denim mills in Pakistan, Bangladesh, China, Vietnam, Thailand and the United States. The response from the industry has been overwhelmingly positive. Having a partner in Archroma, one that is highly respected for their innovation and emphasis on sustainability throughout the industry, will allow us to take CleanKore to the next level.”

Umberto Devita, Global Indigo Manager at the Archroma Global Competence Center for Denim & Casualwear, adds: "CleanKore is perfectly aligned with the 3 pillars of 'The Archroma Way to a Sustainable World: Safe, efficient, enhanced'. 'Safe' through the elimination of a potentially harmful substance and the protection of the denim workers, 'Efficient' through the reduction of resource consumption, improved productivity and cost-effective profile. And 'Enhanced' through the gorgeous colors and effects allowed with Archroma's innovations and systems, in particular our aniline-free* Denisol® Pure Indigo and Diresul® sulfur dyes. We look forward to help promoting an innovation that will help with many of the challenges facing our denim customers throughout the world. Because it’s our nature."

Hexcel is pleased to announce Type Approval Certification of its HexPly® M9 prepreg materials by DNV GL. The addition of the HexPly M9 prepreg range to Hexcel’s already comprehensive DNV GL certified portfolio provides ship and boat builders with optimal prepreg processing options.

HexPly M9 prepregs enable short cure cycles at 100˚C and above and provide a balance between ease of processing and mechanical performance. Available in high tack and medium tack variants, HexPly M9 prepregs are available with a wide range of unidirectional, woven, and multiaxial reinforcements. Partnered with Hexcel’s own HexTow® IMC2 and HexTow® HM54 / HM63 fibers, designers and engineers can optimize highly loaded composite structures such as masts, wing sails, and foils with increased glass transition temperatures (Tg) and excellent long-term fatigue performance.
 
Hexcel has completed the DNV GL certification for HexPly M9 in response to the rapidly increasing demand for type-approved high-performance prepreg materials for large composite structures in the commercial marine craft.  

Hexcel’s collaboration with Chantiers de l’Atlantique on its new Silenseas cruise ship concept – a concept that uses composite Solid Sail® propulsion as well as dual-fuel engines to reduce emissions and operating costs – is one such application. In this case, DNV GL type approval provides third-party assurance of the product’s quality, performance and consistency, and also helps to streamline the approval of composite parts that replace traditionally metallic structures.

Hexcel has supplied advanced composite materials to the marine industry for more than 40 years and manufactures a comprehensive range of DNV GL certified products including woven reinforcements, multiaxial fabrics, prepregs, and adhesive films. Hexcel is committed to developing new composite technologies for the marine sector, helping builders evolve their designs to produce lighter, more fuel-efficient, and a sustainable craft for the future.

“Our latest Type Approval Certification is an important part of our strategy to provide the most complete package of DNV GL certified composite materials for the marine sector,” said Andreas Sageder, Product Manager at Hexcel. “With the addition of our M9 prepreg resin systems, mast, ship, and boat builders have an expanded range of processing and cure options available for parts requiring higher Tg and improved fatigue performance.”

International technology Group ANDRITZ has received an order to supply a neXline spunlace eXcelle line to Minet S.A, based in Ramnicu Valcéa, Romania, for processing various fibers from 25 to 70 gsm to produce a wide range of hygiene products. Start-up is expected during the second quarter of 2022.

ANDRITZ will deliver a complete line, from web forming to drying. The line will integrate one high-speed TT card, the robust Jetlace Essentiel hydroentanglement unit equipped with a neXecodry S1 system for energy saving, and a neXdry double-drum through-air dryer.

The close collaboration between ANDRITZ and Minet in needlepunch was an important consideration in the choice of supplier for the spunlace line as well as the fact that ANDRITZ is recognized as the benchmark for production of premium spunlace roll goods.

Just recently, ANDRITZ successfully completed the commissioning of a neXline needlepunch eXcelle line for Minet. This line is dedicated to the production of automotive products made from a large variety of fibers. For this contract, ANDRITZ delivered a complete line from fiber preparation to end-of-line, also integrating card, crosslapper, batt drafter, two needlelooms and a Zeta felt drafter with a working width of more than 6 m. The line is also equipped with the unique ProDyn web profiling system, operating as a closed-loop control system in order to ensure perfect evenness of the products.

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/

• The Bavarian Kelheim Fibres GmbH has become the first viscose fibre manufacturer worldwide to receive EMAS certification.

“Our aspiration is that our fibres offer an eco-friendly and high-performance alternative to synthetic materials”, says Craig Barker, CEO at Kelheim Fibres. “So, it’s not enough that our fibres are made from renewable resources and that they are fully biodegradable – our environmental awareness must include the whole production process and all that goes with it if we want to safeguard our credibility.

The EMAS certification proves that we take this responsibility seriously.” EMAS stands for “Eco Management and Audit Scheme” and is a standardised eco management certification system developed by the European Union. EMAS includes the globally applicable ISO 14001 standard and goes beyond its requirements by demanding more transparency and continuous improvement: Certified companies report in their annual EMAS Environmental Statement on their environmental goals and their progress in meeting them.

During the audit preceding the certification, the independent environmental auditor thoroughly investigated all departments of the company, from the production itself to the company canteen. He found no non-conformances and was impressed by the competence and the high sense of responsibility among Kelheim’s employees. In contrast to the EU Ecolabel and similar certifications, EMAS does not apply to individual products or services, but certifies the complete environmental performance of the company. This benefits not only the protection of the environment and climate, but also the improvement of a company’s ecoefficiency.

Craig Barker: “An efficient environmental management system ensures that economy and ecology go hand in hand – that gives us a decisive competitive edge.”

Hexcel and Safran Expand Scope of Existing Contract for Advanced Composite Materials on Commercial Aerospace Programs

Hexcel Corporation (NYSE: HXL) announced today that the scope of its long-term supplier contract with Safran S.A. has been expanded to include advanced composite materials for a broader range of commercial aerospace applications.

For more than three decades, Hexcel has been a trusted, leading supplier of high-performance, advanced composites such as carbon fiber, adhesives, prepregs, dry fabrics, and honeycomb core to Safran programs. Since 2013, Hexcel HexTow® IM7 carbon fiber has been supplied for the LEAP*-1A, -1B and -1C engine programs. That contract now has been amended to include HexTow IM7 for the GE9X engine that powers the Boeing 777X.The contract also includes Hexcel core, adhesives, prepregs, and fabrics for additional applications on engine nacelles and aircraft interiors.

“It was time to include Safran Cabin, Safran Seats and Safran Aerosystems within our global long-term agreement,” said Thierry Viguier, Vice President, Safran Materials Purchasing. “Hexcel has shown again, during this difficult period of time, that they are a strong and reliable long-term partner.”

“This contract expansion is the result of a successful, collaborative relationship between Safran and Hexcel that started more than 35 years ago to serve the aerospace industry,” said Thierry Merlot, President Aerospace Europe, Asia Pacific, Middle East, Africa & Industrial. “This agreement will further strengthen the long-term partnership between our companies and reinforces our strategic position within Safran’s First Circle suppliers.”

• 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.