From the Sector

High-performance yarns now offer almost unlimited possibilities for replacing traditional raw materials in a vast range of technical applications. Often tailor-made, these filament yarns go way beyond the conventional idea of ‘textiles’ – finding new uses in sectors such as automotive, aviation, maritime, medical and construction, among many others.

Technical textiles are everywhere in our daily lives today, even if we may not always realize it. Some are in more obviously textile products, from sewing threads to artificial turf. But then, take cars as an example: modern vehicles are stuffed with parts made from sophisticated yarns. It’s common for producers of automotive parts now to send template material and requirement lists to Swiss Textile Machinery members, trusting their expertise and experience. Members operate development and testing centers with latest machine installations, where their experts devise customized solutions, as well as calling on the pure innovative spirit which is part of their DNA.

At the extremes
Technology drives applications beyond our current imagining in the case of Heberlein air splicers. Developed for a wide range of uses with high-strength technical fibers, they have no problems splicing aramid fibers up to 16’100 dtex, carbon up to 30’000 dtex, Dyneema up to 5’500 dtex, and glass up to 4’800 tex. Using compressed air, the splicers produce a tear-resistant, homogeneous splice of material without interfering knots.

Retech has the technology to achieve specifications for filament yarns, drawing and stretching fibers to perfection. Top heated godet rolls – many customized – are developed for high-performance fibers. Temperatures up to 400 °C can be achieved. Combining the right settings and wide speed ranges for each specific process results in unique end-products.

Fabric producers of high-end applications must avoid any quality risk. Yarn producers are well aware of this responsibility, so they use precision package winders for technical yarns, developed by Rieter’s subsidiary SSM. Taking yarns from ring twisting bobbins, its specialist finish winders can produce coarse-count technical yarns up to 50’000 dtex, offering a new level of flexibility and winding quality.

Lifestyle essentials
At first glance, motorists might fail to notice many of the technical yarns ‘hidden’ inside their cars. These products have functions such as providing stability with hardly any weight, or absorbing tensile forces at defined elongation. This kind of controlled elongation behaviour, for example, arises from the choice of textile material and the special construction of the yarns used.

Such specifications make twisting and cabling machines essential for the automotive industry. Saurer offers machines for the production of technical yarns made from a variety of feed materials in a very wide yarn count range. They are needed for vehicle products such as tire carcasses, toothed engine belts, seat belts, airbags and lorry tarpaulins.

Technical yarns also play a surprising role in our mobile devices. Tapping, scrolling and swiping are second nature for billions, with our phones and a plethora of other lifestyle essentials. Yet, how many people would know that the touch-sensitivity we take for granted on these screens is largely made possible by twisted glass fibers. Bräcker, part of Rieter’s components business, offers a selection of vertical sinter metal rings and nylon travelers for glass fiber twisting, so that mills can achieve high levels of productivity and quality.

Future unlimited
Automotive and communication technology are already important industries for Swiss Textile Machinery members, along with well-known technical textiles markets in sectors such as medical, transport and construction. Smart-wear is already noted as a field with significant potential. Naturally, members are constantly investigating other possibilities. Swiss textile machinery is already applied in energy (batteries), and plastics.

The Swiss Textile Machinery Pavilion will be at the Techtextil exhibition in Frankfurt, Germany, taking place from 21 to 24 June 2022.

The Aachen-Dresden-Denkendorf International Textile Conference 2022 as face-to-face event takes place on-site in Aachen on December 1-2, 2022.

There is the opportunity to contribute to the conference program and submit an abstract for a talk or poster presentation. The Call for Abstracts for oral presentations ends on May 6, 2022. The Call for Abstracts for poster contributions is open until July 31, 2022.

The ADD-ITC is a conference for experts from the fields of
·    Textile chemistry, finishing & functionalization
·    Synthetic Fibers & Materials
·    Machinery, Processes & Composites

The conference program includes plenary lectures and themed sessions in the areas of
·    Sustainability in the textile industry
·    Future of textile production
·    Textiles for medicine and health
·    Smart textiles & fashion
·    Historic textiles
·    Technology transfer (IGF-ZIM projects)
·    Textile developments by start-ups
 

Further information about the conference program, plenary and keynote speakers as well as the call for abstracts are online availabel.

Monforts will highlight its advanced finishing and coating technologies for the production of technical textiles at Techtextil North America, which takes place at the Georgia World Congress Center in Atlanta from May 17-19.

The company and its US representative PSP Marketing, of Charlotte, North Carolina, will be part of the centrepiece VDMA German Pavilion at the show.

Energy prices
With energy prices continuing to go through the roof, an emphasis at Techtextil North America will be on the energy and heat recovery that can be achieved with Montex stenters, through features such as the MonforClean system, in which waste heat from the drying process is used to pre-heat the drying air. This results in a radical reduction in the conventional heat supply required. A range of further resource-saving and energy recovery options can be specified per individual line installation.

Advanced machine operation
With the highly intuitive Qualitex 800 visualization software, all article-specific settings can be stored and the formulations for thousands of treatment processes called up again at any time. Individual operators can also personalise their dashboards with the most important machine functions and process parameters.

The Qualitex 800 system is available for the automatic and continuous operation of the company’s Montex stenters, as well as its Thermex continuous dyeing ranges, Monfortex shrinking systems and Montex®Coat coating units.

Versatility is the key
Monforts Montex®Coat coating units serve an equally diverse number of markets, including tents, tarpaulins and awnings, black-out roller blinds and sail cloth, automotive interior fabrics and medical disposables. Full PVC coatings, pigment dyeing or minimal application surface and low penetration treatments and solvent coatings (in explosion-proof conditions) with knife coating, roller coating or screen printing can all be accommodated with this system.

Reifenhäuser Cast Sheet Coating - specialists for cast film, sheet extrusion and extrusion coating lines - will showcase a new production process for cost-effective film/nonwoven composites with an exceptionally low grammage at ICE (International Converting Exhibition) Europe. The leading international trade show for paper, film, and foil conversion and processing will be held at Messe München (Munich trade fair center) from March 15-17, 2022.

The Covid-19 pandemic and current supply shortages have exposed the dependence of companies on global supply chains. This situation is both a warning signal and an opportunity to boost and reorganize the local production of semi-finished products from the ground up. Reifenhäuser Cast Sheet Coating has now developed a trend-setting production process termed Ultrathin Coating, in particular for the sector of medical protective clothing. The process will permit customers to produce particularly lightweight film/nonwoven composites with greater cost efficiency and, as a result, more competitively. The patent-pending process has several advantages: It cuts film grammage by 66%; material consumption in the overall composite is reduced by 28%; and it slashes costs by up to 34% compared to conventional semi-finished products. Significant cost savings are achieved in various ways, for example, by replacing hotmelt adhesives, which reduces line maintenance to a great extent at the same time.

Mark Borutta, Sales & Marketing Specialist bei Reifenhäuser Cast Sheet Coating, erklärt: „Wir erleben derzeit einen nachhaltig wachsenden Mehrbedarf für medizinische Schutzbekleidung verbunden mit einer Rückholstrategie für lokale Produktionskapazitäten. Vor diesem Hintergrund erzielen Produzenten mit ‚Ultrathin Coating‘ einen schnellen Return on Invest und hohe Profitabilität – auch bei einer Produktion innerhalb Europas.“ Die Vlies-erfahrene Schwesterfirma Reifenhäuser Reicofil –führender Hersteller von Vliesstoffanlagen – hat die Entwicklung unterstützt.

Mark Borutta, Sales & Marketing specialist at Reifenhäuser Cast Sheet Coating, explains: "We are currently experiencing a sustained increase in demand for medical protective clothing combined with a return strategy for local production capacity. Against this backdrop, producers achieve a fast return on investment and high profitability with Ultrathin Coating - even when production is based in Europe." The sister company, Reifenhäuser Reicofil, an experienced and global leading manufacturer of nonwoven lines, provided their support to the development.

Even if manufacturers already produce medical protective clothing and prefer to handle the coating process internally in the future instead of importing the necessary composites, it is worthwhile to set up an in-house production facility. In either case, the investment in Ultrathin Coating usually pays for itself in less than 12 months. The lower material input also reduces the consumption of fossil raw materials and this in turn responds to the increased demand for more sustainable products.

• Sustainability and security combined:
• RF security labels from Checkpoint Systems can be fully recycled as part of kerbside paper-based recycling collections

To ensure that its retail customers are not negatively affecting the recyclability of product packaging by attaching security labels,Checkpoint Systems partnered with PTS – an organisation with over 70 years’experience researching the use of fibre-based solutions – to conduct a series oftechnical tests on its range of labels. The technical report concluded that consumers can safely dispose of a Checkpoint security label in a household recycling bin, without having to separate the label from the packaging, knowing that the entire pack will be recycled.

The Germany-based research consultancy PTS tested a range of Checkpoint labels. PTS analysed the labels, which were different sizes and materials, to ensure that following the standard kerbside recycling process, the recycled, fibre-based material would be of acceptable quality. Each label was applied to a piece of cartonboard to simulate a real-world scenario and the results show that all are classified as being recyclable in accordance with current regulations. All labels – including the 410 RF, 2928 RF and 4210 RF labels – achieved an excellent overall recyclability rate of over 94%.

Sustainability is essential

With brands making strong commitments to sustainability – including investing in more environmentally friendly forms of packaging like cartonboard – and consumers increasingly demonstrating their preferences for sustainable packaging it is pivotal that anything applied to an item – at any point along the supply chain or in-store – does not affect the recyclability of its packaging.

Security labels play a vital role in ensuring products remain available to purchase. Retailers have been using a diverse range of labels to protect their merchandise, working with suppliers to ‘tag’ items at source or relying on store associates to apply labels in-store. As one of the largest suppliers of RF-based Electronic Article Surveillance (EAS) labels globally, Checkpoint’s labels are applied to millions of products, which are packaged in different materials. Typically, when recycled, packaging labels tend to end up in a combination of different rubbish and recycling streams, depending on the packaging material and the consumer commitment to recycling.

Until today, the recyclability of these labels has been relatively unknown. It means that retailers and consumers could inadvertently be contaminating the paper-based packaging recycling stream with millions of security labels – still attached to packaging which could have otherwise been recycled up to 25 times.

“Security labels play an important role in helping retailers protect their profits, but it is vital they don’t stop packaging from being recycled. We are delighted to have achieved this accreditation from PTS that shows our labels can be recycled through the existing kerbside collections. It means that brands and retailers can be assured they are not negatively affecting a country’s recycling rate, while also knowing their customers can conveniently dispose of the entire pack, packaging material and label, in the same household recycling bin. Our labels passed all of PTS’ stringent tests meaning they have little to no impact on the recyclability of a piece of cartonboard packaging." 

• International technology group ANDRITZ has received an order from Romatex (Pty) Ltd., South Africa, to supply a new batt forming line.

The line will be dedicated to the production of Maliwatt products used in a wide range of applications, including home textiles. Start-up of the line is planned for the fourth quarter of 2022.

ANDRITZ will deliver dedicated batt forming equipment, mixing an aXcess card and an eXcelle crosslapper to achieve the technical characteristics Romatex requires in terms of product quality and line performance. This new stitchbonding line will enable Romatex to better serve the growing customer requirements in terms of availability of high-quality products.

This will be the third line supplied by ANDRITZ to Romatex in four years. Helmut Höck, General Manager Operations at Romatex, says: “We bought our first line from ANDRITZ in 2017, then another one in 2019. We have been very satisfied with the close collaboration between our companies, the flexibility and reliability of the machines, as well as the excellent service from ANDRITZ over all these years. The experience has been uncomplicated. This has given us the confidence to consider ANDRITZ for a further investment.”

ANDRITZ is one of the global market leaders for supply of nonwoven production technologies, including batt forming equipment for the stitchbonding processes used to make Maliwatt, Malivlies and Multiknit. This segment addresses a variety of applications, including automotive, household, bedding, footwear, wipes, and many others.

Romatex is the leader in Maliwatt stitchbonding in Africa. Its facility is located in Cape Town. One of the company’s key strengths is its product diversification. Today, the company offers a complete range of bed linen, duvets, pillows, and stitchbonded products.

Sistema Moda Italia confirms its Innovation Area for the 34th edition of Milano Unica, an area which responds to the growing demand for innovation in products, processes and services able to give specific performances or made with innovative and sustainable systems. And right here we find Sitip’s technical fabrics for clothing, with the COSMOPOLITAN Fashion-tech fabrics collection, modern and comfortable, dedicated to contemporary urbanwear/sportswear style and which perfectly meets the new needs required by the market and by the final consumer: performance and design.

COSMOPOLITAN Fashion-tech is declined into urbanwear through the sartorial technical fabrics that the company has defined Techno Sartorial: a tailoring that combines flawless cuts with exceptional fabric performance.

For the production of contemporary urbanwear, thought for the city, Sitip showcases the man’s suit made of jacket+trousers in warp-knit Cosmopolitan Citylife fabric: bi-stretch nylon with UV protection (UPF 50+), quick drying, easy care and skin comfort. Highly performing, breathable, comfortable, insulating and with an exceptional fit: incredible elegance and comfort that enhance the contemporary urbanwear style.

For women, Sitip presents COSMOPOLITAN Fashiontech fabrics dedicated to athleisure, with leggings made - for the summer version - in Cosmopolitan London, a bi-stretch circular knitted fabric, no seethrough, breathable, comfortable on the skin with UV protection (UPF 50+), with easy care and perfect shape retention, and - for the winter version - in Cosmopolitan Paris GZ, a circular knitted fabric raised on the reverse side, with the same properties as the previous one and thermoregulation characteristics.

The Instinct fabric is available in the recycled and raised version NATIVE INSTINCT GZ: a GRS certified thermal fabric made with pre-consumer recycled yarns, bi-stretch, breathable, resistant to pilling, easy care and high comfort, ideal for sporty knitwear and urbanwear part of the NATIVE SUSTAINABLE TEXTILES family, the Sitip fabric collection produced with GRS certified recycled yarns and low environmental impact chemicals with a lower consumption of natural resources , able to respect the environmental and social criteria extended to all the stages of the production chain, including the traceability of raw materials. Sitip also operates in line with international certifications such as OEKO-TEX®, BLUESIGN®, GRS and adheres to the ZDHC gateway, adding to these an ISO 14001 environmental management system, which certifies the company’s commitment to reducing pollution risks.

• AMSilk Partners with Mercedes-Benz to Present a Sustainable Bio-Based Product
• The use of a biotechnology-based and certified-vegan silk-like fabric marks a first in the automotive sector

AMSilk GmbH (“AMSilk”), a leader in supplying innovative high-performance bio-based silk materials, announced a partnership with Mercedes-Benz, for the development of novel, sustainable car door pulls, as part of the car manufacturer’s latest technology programme, the VISION EQXX.

The new concept car, VISION EQXX, features innovative interior materials, revealing a way forward for luxury design that conserves resources and is in balance with nature. Among the organic interior design features are new door pulls made from AMSilk’s Biosteel® fiber. This high-strength, certified-vegan, silk-like fabric is made using AMSilk’s proprietary biotechnology expertise. AMSilk is the world’s first industrial supplier of vegan silk biopolymers which are 100% biodegradable, recyclable, renewable and zero-waste.

Marking a first in the automotive sector, AMSilk’s Biosteel® provides a solution to the car industry whose need to replace petroleum-based content by natural, bio-based materials is increasingly growing.
This new project is the most efficient electric vehicle Mercedes-Benz has ever built and marks a new expression of efficiency and sustainability in interior design. The all-electric VISION EQXX was unveiled in a digital world premiere on the “Mercedes me” media online platform.

Ulrich Scherbel, Chief Executive Officer of AMSilk said: “We are extremely proud to partner with Mercedes-Benz on the technology programme VISION EQXX, providing sustainable interior design solutions from our best-in-class bio-based fibers. Amid a fresh wave of ambitious climate pledges, we are proud to be playing a leading role in providing solutions for a zero-waste future.”

The AVK – Industrievereinigung Verstärkte Kunststoffe – has once again presented its Innovation Awards to companies, institutes and their partners. Three composites innovations were recognised in each of the three categories – “Innovative Products/Applications”, “Innovative Processes” and “Research and Science” – at the new event JEC Forum DACH on 23 November 2021, the first edition of which was held in Frankfurt.

“As usual, the submissions included a lot of very interesting and promising products and processes this year. The Innovation Awards highlight the outstanding efficiency, cost-effectiveness and sustainability of fibre-reinforced plastics as well as the companies and institutes operating in the sector,” explains Dr. Elmar Witten, Managing Director of the AVK. The jury of leading experts from the industry honoured the following innovations this year:

Category “Research and Science”
First place in the “Research and Science” category was awarded to the German Aerospace Center (DLR) for its Bondline Control Technology (BCT). This innovative process is used for quality control and assurance of bonded joints. The core element is a porous fabric which is applied to a joining surface using an epoxy adhesive or matrix resin. Peeling away the fabric creates a chemically reactive and undercut surface and can also be used as a test to check adhesion to the substrate. BCT has potential in a variety of possible applications. For example, peel ply can be replaced by BCT fabric to produce composite components with an optimised joining surface. The cost-effective BCT peel test is suitable for coupon testing and process control. In addition, the combined adhesion test and surface pre-treatment can be used for quality assurance of bonded repairs on fibre composite structures.

Second place was taken by the Institute of Textile Technology (ITA) at RWTH Aachen University and its partners AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR with “StoneBlade – Lightweight construction with granite for the wind industry”. This innovation enables manufacturers to reduce the amount of non-recyclable materials used in rotor blade construction. At the same time, it reduces the weight of these components and improves the mechanical properties relating to the stability of wind turbines. The innovative approach replaces glass-fibre reinforced plastic in the blade components with hard rock – a natural, cost-effective and recyclable lightweight material. The slabs of rock are cut and ground to a thickness of just a few millimetres and embedded in a fibre composite laminate with carbon fibre, which stabilises them for alternating load cases. The pre-stressed material is pressure-stable in the composite and can absorb tensile forces in the event of continuously alternating loads without any loss of stiffness.

Third place went to the Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK) with its partner Mercedes Benz AG for the interdisciplinary development of a highly integrated inductive charging module for electric vehicles. The ultra-thin charging module was designed to make optimum use of space in the vehicle underbody without reducing ground clearance. An interdisciplinary approach was adopted for the development process. This involved the electrical, mechanical and process characterisation of high-frequency Litz wires, ferromagnetic foil and metal wire cloth as well as the creation of a simulation model. The result is a demonstrator for a charging system with a structural height of 15 mm and a total weight of 8 kg. It achieves a transmission efficiency of up to 92 percent at 7.2 kW nominal power and active air cooling. The hardware demonstrator was fabricated in a 3-step process using RTM and VARI techniques.

Overview of all the winners in the three categories:
Category “Innovative Products/Applications”
1st Place: “Traffic signs from Nabasco (N-BMC)” – Nabasco Products BV and Lorenz Kunststofftechnik GmbH, partners: Pol Heteren BV and NPSP BV
2nd Place: “Novel, ultratough vinyl ester resin for the construction of large marine vessels” Evonik Operations GmbH
3rd Place: “Air intake housing with a multi-material design for gas turbines” – MAN Energy Solutions SE, Leichtbau-Zentrum Sachsen GmbH and Leichtbau-Systemtechnologien KORROPOL GmbH.
Category “Innovative Processes”
1st Place: “In-mould wrapping” off-tool, film-coated, fibre composite components for exterior applications – BMW Group, Partner: Renolit SE
2nd Place: “Adaptive automated repair of composite structural components in the aviation sector” – Lufthansa Technik AG, Partner: iSAM AG
3rd Place: “Automated surface pre-treatment using VUV excimer lamps” – CTC GmbH
Category “Research and Science”
1st Place: “Bondline Control Technology (BCT)” – German Aerospace Center (DLR)
2nd Place: “StoneBlade – Lightweight construction with granite for the wind industry” – Institute of Textile Technology at RWTH Aachen University, Partners: AEROVIDE GmbH, Altropol Kunststoff GmbH, Basamentwerke Böcke GmbH, TechnoCarbon Technologies GbR
3rd Place: “Interdisciplinary development of a highly integrated inductive charging module for electric vehicles” – Dresden University of Technology – Institute for Lightweight Construction and Plastics Technology (ILK), Partner: Mercedes Benz AG

Submissions for the next Innovation Award can be made from the end of January 2022.

DiloGroup would like to thank all customers and interested parties for visiting the Dilo booth in Geneva. Despite the existing worldwide Covid, we were able to welcome a great number of well-known faces as well as meet new contacts, among them the most important nonwovens producers from across the world in all application areas: hygiene and lightweight nonwovens, technical textiles and needled nonwovens including geotextiles, filter media and automotive. The interest in using resource saving plant engineering, energy saving and the processing of natural fibres remains.

Dilo presented its latest developments in industry 4.0. Systematic plant monitoring and analysis of machine data allows simplified operation and more effective production. This smart system was illustrated with the aid of live analysis of the performance, quality and availability parameters of the production lines in our Textile Research Centre. The new production systems Hyperpunch Alpha, HyperTex and 3D-Lofter were explained with the aid of videos which led to a very positive responsive from the many different producers which are interested in running trials at the Dilo Textile Research Centre to further explore these subjects. These highlights and further new developments were the basis for fruitful technical discussions.