From the Sector

• Swiss weaving machinery manufacturers are in the forefront of novel application development

Shoes and electronic calculators are probably not the first products people would associate with the textile weaving process. But they certainly signpost the future for woven fabrics, as two examples of the ever-wider possibilities of latest technology in the field. Fashion and function already combine in the increasing popularity of woven fabrics for shoes, and this is a present and future trend. Calculators in fabrics? That’s another story of ingenious development, using so-called ‘meander fields’ on the back and keys printed on the front of the material.

These glimpses of the outlook for modern weavers are among the highlights of developments now being pioneered by Swiss textile machinery companies. All weaving markets require innovation, as well as speed, efficiency, quality and sustainability. Member firms of the Swiss Textile Machinery Association respond to these needs at every point in the process – from tightening the first thread in the warp to winding the last inch for fabric delivery. They also share a common advantage, with a leading position in the traditional weaving industry as well as the expertise to foster new and exciting applications.

Technology and research cooperation
The concept of a ‘textile calculator’ was developed by Jakob Müller Group, in cooperation with the textile research institute Thuringen-Vogtland. Müller’s patented MDW® multi-directional weaving technology is able to create the meander fields which allow calculator functions to be accessed at a touch. A novel and useful facility, which suggests limitless expansion.

Today, the latest woven shoes are appreciated for their precise and comfortable fit. They score through their durability, strength and stability, meeting the requirements of individual athletes across many sports, as well as leisurewear. Stäubli is well known as a leading global specialist in weaving preparation, shedding systems and high-speed textile machinery. Its jacquard machines offer great flexibility across a wide range of formats, weaving all types of technical textiles, lightweight reinforcement fabrics – and shoes.

It’s possible to weave new materials such as ceramics, mix fibers such as aramid, carbon and other, and produce innovative multi-layers with variable thicknesses. Such applications put special demands on weaving machines which are fulfilled by Stäubli high-performance TF weaving systems.

Great weaving results are impossible without perfect warp tension, now available thanks to the world-leading electronic warp feeding systems of Crealet. Some market segments in weaving industry today demand warp let-off systems which meet individual customer requirements. For example, the company has recognized expertise to understand that geotextile products often need special treatment, as provided by its intelligent warp tension control system. Individual and connective solutions are designed to allow external support via remote link. Crealet’s warp let-off systems are widely used in both ribbon and broadloom weaving, for technical textiles applied on single or multiple warp beams and creels.

Functional, sustainable, automated
Trends in the field of woven narrow fabrics are clearly focused on functionality and sustainability. The Jakob Müller Group has already embraced these principles – for example using natural fibers for 100% recyclable labels with a soft-feel selvedge. It also focuses as much as possible on the processing of recycled, synthetic materials. Both PET bottles and polyester waste from production are recycled and processed into elastic and rigid tapes for the apparel industry.

For efficient fabric production environments, it is now recognized that automated quality solutions are essential. Quality standards are increasing everywhere and zero-defect levels are mandatory for sensitive applications such as airbags and protective apparel.

Uster’s latest generation of on-loom monitoring and inspection systems offers real operational improvements for weavers. The fabric quality monitoring prevents waste, while the quality assurance system significantly improves first-quality yield for all applications. Protecting fabric makers from costly claims and damaged reputations, automated fabric inspection also removes the need for slow, costly and unreliable manual inspection, freeing operators to focus on higher-skilled jobs.

Smart and collaborative robotics (cobots) offer many automation possibilities in weaving rooms. Stäubli’s future oriented robotics division is a driver in this segment with first effective installations in warp and creel preparation.

Control and productivity
Willy Grob’s specialized solutions for woven fabric winding focus on reliable control of tension, keeping it constant from the start of the process right through to the full cloth roll. Continuous digital control is especially important for sensitive fabrics, while performance and productivity are also critical advantages. In this regard, the company’s large-scale batching units can provide ten times the winding capacity of a regular winder integrated in the weaving machine.

The customized concept by Grob as well as design and implementation result in great flexibility and functionality of the fabric winding equipment – yet another example of Swiss ingenuity in textile machinery.  
There is even more innovation to come in weaving – and in other segments – from members of the Swiss Textile Machinery Association in future! This confident assertion is founded on an impressive statistic: the 4077 years of experience behind the creative power of the association’s member firms. It’s proof positive that their developments grow out of profound knowledge and continuous research.

Decision SA, part of the leading European composites consortium, Carboman Group, and a specialist in the development, prototyping and production of large composite structures, is proud to announce a new direct mould tooling technology for aerospace.  Decision’s latest tooling solution provides OEMs and manufacturers with short lead times for highly stable direct moulds for series production both in and outside of the autoclave at temperatures of up to 180˚C.

Decision and Carboman recently delivered the first customer moulds using the new technology, providing a tooling glass prepreg, stainless-steel backed direct female mould tool created for the series production of a Class 3 fairing to a leading European aerospace OEM. Decision has immediate availability and capacity for similar tooling projects with lead times currently as short as six to eight weeks.

With no traditional plug or mould pattern required, Decision’s direct mould process starts with the group’s engineers selecting a material combination for the tool surface and support structure that will provide the optimum match between the coefficient of thermal expansion (CTE) of the mould and the composite part to be processed.  The CNC machined composite face sheet is supported by a stress-relieved metallic or composite backing structure before final post curing and machining is completed. The principal benefit of this novel approach, aside from removing the need for costly and time-consuming plug production, is the production accuracy delivered by the closely matched CTE of the mould tool and the finished composite part.

The autoclaved composite tool surface is not only extremely dimensionally stable up to processing temperatures of 180˚C, but it can also be configured with additional metallic inserts or fixtures if required.  

Produced in an EN 9100:2018 controlled production environment, and with CMM checks before and after machining, the new direct composite tools have dimensional tolerances of +/-0.2mm.  The available tooling dimensional envelope is currently defined by Decision’s 2200mm x 6000mm autoclave.

“With our new direct tooling technology, we are able to combine the highest technical standards in dimensional accuracy and thermal stability with extremely short lead times.  Decision and Carboman Groups’ combined mission has always been to develop the construction methods for tomorrow’s composite structures, and we believe that this tooling solution will allow our customers to accelerate the implementation of the next generation of high-performance carbon fibre aerostructures and components” Grégoire Metz, Managing Director, Decision SA.

• BIONIC-FINISH®ECO Fluorine-Free, Water Repellent Finishes for Ultimate Performance

In recent years, many scientists have shifted from favoring a “primordial soup” in pools of water to hydrothermal vents deep in the ocean as the original source of life on Earth. Regardless what the real beginning really was, water was certainly involved in the process some 3,5bln years ago. And since then, Mother Nature designed many ways to benefit of water and to be sheltered from it. Many engineering challenges humans face can be solved by turning to those 3,5bln years of experience and by using natural design as springboard. That’s biologically inspired engineering or, in short, bionics. BIONIC-FINISH®ECO of RUDOLF GROUP is Mother Nature’s work reproduced on textiles and apparel to protect us from water. To perform.

Back in 2003, RUDOLF GROUP borrowed from Mother Nature the idea of dendrimers (from dendron, Greek word for ‘tree’), molecules made of multi-functional branches that interact among themselves, co-crystallize, and self-organize into highly ordered, multicomponent systems. These hyper-branched polymers attach to the textile and embed fluorine-free, durable water-repellent performance.
In 2021 BIONIC-FINISH®ECO comes as a reviewed and extended family of unique nonhalogenated, APEO-free, fluorine-free formulations suited for different materials and designed for different applications and needs. Still very much based on patented dendrimer technology, the new and strengthened BIONIC-FINISH®ECO’s product portfolio:

• Provides non-fluorinated and highly durable water repellent textile finishes for high-performance, professional applications (e.g. when brushing resistance is required);
• Delivers highly efficient and durable performance with low application amounts thus not affecting fabric feel and appearance (e.g. when remarkable softness is important);
• Fulfills a range of challenging technical requirements (e.g. minimal impact on flame retardant properties of technical fibers);
• Is suitable for both sportswear and outdoor applications, as well as for casual apparel and fashion clothing;
• Is bluesign® approved, ZDHC chemical gateway certified and compliant with most RSLs;

BIONIC-FINISH®ECO new portfolio includes universal and versatile solutions targeting the most standard requirements, as well as customized solutions that meet more demanding and specific expectations such as improved resistance to dry-cleaning. “None of us can entirely predict where our voyage will lead” says Dr. Gunther Duschek, RUDOLF GROUP Managing Director. “However, BIONIC-FINISH®ECO of RUDOLF GROUP will always be the fluorine-free, durable water repellent for ultimate  performance. As it is today”.

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.

From the drinking water and food industries through water management and mining to the automotive and aviation sectors, mechanical filtration processes are used in almost every industry. As different as the methods, dimensions and special requirements of the filtration process are in each case – technical textiles and often tubular filters are almost always used. This means that tubular filters and narrow textiles by vombaur contribute to the safe and reliable separation or treatment of substances in the widest variety of filtration processes.

Individual solutions
The requirements placed on the textile, the material, the flow rate and the loading capacity of the filters depend on the respective use: a tubular for dewatering soil needs to withstand different forces than a tubular filter for the beverages industry. On the other hand, the latter needs to meet the highest hygiene standards. Because the requirements are so individual, vombaur develops customised filtration textiles for its customers all over the world.

Seamless tubular filters
At vombaur, filter media are round woven seamlessly on unique looms. As a result, they have identical surface properties all around and over the entire length, such as flow rate, loading capacity, shrinkage behaviour or material thickness

Narrow textiles for fabricating filter media
"We manufacture our narrow textiles from a wide variety of high-tech yarns. Sometimes monofilament yarn is used, sometimes multifilament, sometimes spun yarn. Like the type of weave, we select the raw materials depending on the function they need to fulfil," emphasises Gert Laarakker, Sales Manager at vombaur. "So that our filtration textiles reliably perform the job they are supposed to perform. Clean. Safe. Sturdy."

• 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.”

Finer adjustment of the yarn suction force, lower compressed air consumption for the same yarn tension, smooth, ergonomic compressed-air valve – all promises fulfilled by the modernized AS H 32 and AS H 38 yarn suction devices.

Also known as hand injectors, these yarn suction devices are standard components of all spinning positions. The AS H 32- and AS H 38-series are high-performance hand injectors with lower compressed air consumption for the same yarn tension. This is made possible due to the higher yarn suction forces, particularly in the case of the AS H 38 series. In addition to this, string-up without ‘ramp-up’ is possible in certain applications. Also new is a smoother, more ergonomic compressed-air valve, which makes deploying the yarn suction devices more comfortable for users. Furthermore, the required yarn suction force can be adjusted more finely.

The new ‘high-performance devices’ have been designed for applications that require a particularly high suction performance. For several months now, they have been successfully operating in pilot projects within the context of a BCF yarn application in Europe and a tape yarn system located in the US.

•   Mimaki Tiger-1800B MkII Printers for Faster, High-Quality Textile Printing

Amsterdam - Mimaki Europe, a leading manufacturer of inkjet printers and cutting systems, announces today that Pakistani textile company, Moti Fabrics (Pvt) Ltd., is leveraging multiple Mimaki Tiger industrial textile printing units to take its business to the next level. As a result of on the outstanding performance and process optimisation delivered by the Mimaki digital printing equipment, the company has been able to adapt to changes in the textile industry and is now projected to reinforce its market position and expand its capabilities in high-quality textile production.

Headquartered in Faisalabad, Punjab province – the second largest textile hub in Pakistan –, Moti Fabrics (Pvt) Ltd. mainly serves the high fashion industry and uses its cutting-edge technology to print about 100,000 metres daily. Faced with recent challenges in the global textile market, management at Moti Fabrics (Pvt) Ltd. embarked on innovating the company’s business model, shifting from conventional to digital printing. In doing so, the company invested in Mimaki’s advanced industrial textile technology and installed three Mimaki Tiger-1800B MkII units. “We were – and still are – experiencing a massive transformation in the printing segment, with brands demanding high quality products delivered within short deadlines. This change in our customers’ requirements urged us to move to digital printing,” says Muhammad Asif, CEO at Moti Fabrics (Pvt) Ltd. “Our choice has already proved sound as our brand-new Tiger-1800B MkII printing systems have enabled us to cope with the high standards of the fashion industry in terms of both quality and delivery times. In addition, we have been able to gradually enhance our production processes in a cost-effective way.”

The Tiger-1800B MkII is Mimaki’s flagship industrial volume textile printer, available either in dye sublimation configuration for transfer printing or with reactive ink for direct-to-textile printing. Of the three Mimaki Tiger-1800B MkII solutions operating at Moti Fabrics (Pvt) Ltd., two are equipped with reactive inks, enabling the company to directly print onto natural fibres such as cotton and linen, as well as onto manufactured cellulose fibres, including rayon and nylon. The third Mimaki Tiger-1800B MkII features sublimation inks serves the ever-growing printed polyester market, allowing the company to strategically diversify its product portfolio.

“There are several features of the Tiger-1800B MkII that benefit our production and our business at large. The MAPS (Mimaki Advanced Pass System), just to name one, prevents banding and colour-shifting to deliver a higher standard of quality, while the NRS (Nozzle Recovery System) provides uninterrupted production, minimising downtime and ensuring superior results. The sticky belt system together with the large-size ink tanks (with a capacity of 10kg) and the high-performance software RIP TxLink3 are some of the other features that make these printers efficient, user-friendly and reliable,” says Asif.

Asif concludes, “Looking at the future, our aim is to set up a print department featuring only Mimaki’s technologies. We are already considering the next steps to make this possible, knowing that we can count on the support of Signtrade, Mimaki’s dealer in the region and our trustworthy partner.”

Moti Fabrics (Pvt) Ltd. was founded in 1992 by Muhammad Asif’s father Haji Muhammad Yousaf and his partner Haji Rasheed Ahmad. Established as a dyeing company, Moti Fabrics (Pvt) Ltd. was able to gradually diversify the business over the years to become an advanced textile printing specialist. Today, the company is an established provider to the high fashion industry in Pakistan and on an international level.

“The story of Moti Fabrics is incredibly inspiring. Belonging to a region with such rooted textile printing heritage, the company has been able to embrace a new, challenging business model in order to stay at pace with the changing demand from the textile industry and has succeeded,” comments Ronald van den Broek, General Sales Manager at Mimaki Europe. “Customers like Moti Fabrics make us proud as they demonstrate how our advanced Mimaki Tiger industrial textile series can be the enabling technology for those textile companies planning the shift from conventional to digital printing.”

Anker, Devan and Shark Solutions teamed up to create the world’s first flame retardant aviation carpet using a recycled binder. Inspired by the knowledge and the needs of the aviation market, Anker motivated to achieve this new goal together. The PVB binder reuses laminated glass, from windshields and architectural/building glass, that otherwise would go to landfill.

German carpet manufacturer Anker is the first company to offer flame retardant carpets for aviation that are made with a recycled binder. In the search for a more sustainable binder, Anker discovered the PVB from Shark Solutions, a Danish cleantech company focused on giving a new life to post-consumer PVB. Properties of the aviation carpet with PVB as binder are the same as those of traditional non-sustainable carpets. The market has been looking for this type of solutions for a long time and market introduction has already started. Anker will introduce well known and special developed styles of aviation carpets with PVB and plan to take out traditional non-sustainable aviation carpets stepwise as soon as possible.

Shark’s PVB reuses laminated glass, from windshields and architectural/building glass, that otherwise would go to landfill. The non-toxic binder (no chlorine or phthalates) is fully recyclable and thus lives up to the future standards of the industry.

Textile innovator Devan Chemicals, known for its tailor-made flame retardant solutions, was called in to develop the flame retardant back coating, which is compliant with the Airbus and Boeing safety standards. “Based on many years of experience and competences in customer related developments, improving recycling rates is getting more and more important”, says Dirk Vanpachtenbeke, R&D manager Flame Retardants at Devan. “We are very proud that, together with Anker and Shark Solutions, we can contribute to this rising demand for products that meet the standards of a circular economy solution.”

In other news, Anker and Devan are already working on a new project, which includes Devan’s antimicrobial/viral-reducing technology. Recently, Devan published test results on the activity of their technology (BI-OME®) against SARS-CoV-2 and other viruses. According to independent testing, BI-OME is proven to achieve 99% and higher virus reduction, including of SARS-COV-2, on samples before washing and retains 98.5% even after 25 wash cycles. This technology has been recognized with the 2020 European Technology Innovation Leadership Award by Frost & Sullivan.

• Finnish coating and gelcoat manufacturer Finnester strengthens its activities in the D-A-CH region with AMAC

As of September 15th 2020, the Finland-based coating and gelcoat manufacturer Finnester Coatings Oy strengthens its activities in German speaking countries, the so-called D- A-CH region, comprising Germany, Austria and Switzerland with Dr. Michael Effing from AMAC.

Finnester is a pioneer in developing high-quality coatings and gelcoat for both urface spread as well as flame and thermal insulation of composite solutions in different fields of industries. Their portfolio comprises products based on Polyester coatings for fire and thermal protection as well as ceramifying polymers like HybridRED, compliant with the requirements of the standards e.g. EN45545-2. In
order to develop new business opportunities in the D-A-CH region for the endmarkets building and infrastructure, transportation, marine, industrial and electrical industries, Finnester is cooperating with AMAC to accelerate the process of locating suitable partnerships.

Ari Hokkanen, CEO of Finnester: “Finnester has developed unique high-quality coatings. The cooperation with AMAC will accelerate our growth ambitions and supports us in finding new business opportunities. We are happy to benefit from AMAC and Dr. Effing’s long-term experience as a pioneer in the composites industry and his high-quality network along the entire value chain.” Dr. Effing, CEO of AMAC GmbH confirms: “Fire-retardant coatings are very important to the composites industry in order to be successful especially in rail, fast ferry and building & infrastructure applications with their tough fire standards. The DACH region represents more than 30 % of the European market and is the key target for Finnester. I am looking forward to supporting Finnester with their unique offerings and connecting them with key players in the D-A-CH region.”