From the Sector

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

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

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

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

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

New ideas were exchanged, brainstormed, and discussed freely at members’ booths at the Swiss Textile Machinery Pavilion during the recent Techtextil in Frankfurt. “Customers and researchers met Swiss textile machinery companies to explore the possibility of the not-yet-invented. “We regard our Pavilion as the place where future innovations catch a spark,” says Cornelia Buchwalder, Secretary General of the Swiss Textile Machinery Association. Further developments in the field of hybrid yarns were a hot topic. One example of this involves producing a yarn which has all the typical characteristics and advantages of carbon – but which also prioritizes careful use of resources, combining carbon fibres with thermoplastics.

Technical textiles cover a vast range of applications, and it’s still growing thanks to intensive research by specialist institutes and universities. Many members of the Swiss Textile Machinery Association maintain long-standing partnership with such bodies. Innovations are often joint efforts.

Feel-good technical fabrics
Some technical textiles feel like a second skin. A well-known example is activewear from the ‘sport tech’ field. Activewear includes breathable clothing, usually consisting of a three-layer-laminate: an inner lining, a breathable membrane in the center, and an outer fabric. The challenge is to bond the individual layers without losing breathability or softness, while meeting technical requirements such as resistance to a number of wash cycles.

Bonding solutions meeting top quality requirements, as well as ambitious standards for environmental protection and sustainability, were reinvented by the Cavitec brand from the Santex Rimar Group. This company’s hotmelt technology uses one-component polymers applied to textiles in a hot, molten state. Bonding based on hotmelts is both water- and solvent-free. Drying and exhaust air cleaning are not necessary, which is an ecological advantage. Energy consumption is also significantly lower. Cavitec hotmelt technology is also developed for laminated medical protection fabrics which are safe, high-quality and sustainable. These fabrics can be washed, sterilized, and used again.   

A second skin with added value is the result of Jakob Müller Group’s cooperation with an institute for an established outdoor fashion brand. They have devised a heating mat applied as an inner jacket. Outdoor gear with a heated inlay offers the wearer a comfortable feeling even in a cold climate. The heating mat is particularly light, breathable, flexible and adjustable to three temperature levels.

Fabrics with these advantages are now possible thanks to multi direct weaving (MDW) technology from the Jakob Müller Group. A lacquer-insulated heating strand is inserted into the base textile as a ‘meander’ using MDW technology. The technology is offered with both label weaving machines and the latest generation of ribbon weaving machines. The textile pocket calculator is another MDW based future-oriented application developed in cooperation with a textile research institute.

Safety and health
Life-saving reliability is a must for vehicle airbags. They have to fulfil high security aspects, and must remain inflated for several seconds when an accident occurs. Airbags made of flat-woven fabric – cut and seamed – can show weakness at seams during the inflation phase. Latest Jacquard technology by Stäubli enables one-piece-woven (OPW) airbags to be produced, creating shape and structure in a single process. The final product is an airbag consisting of a sealed cushion with woven seams. OPW airbag weaving reduces the number of production steps, and increases the security aspects.
Another big advantage of Stäubli’s new weaving technology is the flexibility in formats required in today’s mid- and upper-range cars, where lateral protection (in the seat or in the roof over the door) has become standard and is designed in line with the car shape. Safe airbags are woven on modern high-speed weaving machines. The warp material, the variety of fabric patterns, and the importance of precisely shaped airbags require the use of a robust and reliable Jacquard machine.

A revolution for orthopaedic patients is a knitting machine from Steiger Participations, which uses compressive yarns developed to meet the needs of the specific health market. This machine model was exclusively designed for production with inlaid elastic yarns and offers optimum performance with guaranteed final product quality.

In the orthopaedic field, many Steiger flat knitting machines have already been operating as automatic, custom-made production systems. For example, the dimensions of an injured limb are taken by the doctor and fed into a web-based application. The doctor selects the compression class in the various sections of the item and a data file created by the software automatically applies a preconfigured program. With no human intervention required, the program is generated and produced on the machine, precisely matching the patient’s dimensions. Each product is different, and generally available within 48 hours.

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.

After three-days of product sourcing and business networking, Techtextil India 2021 in Mumbai concluded in a strong and positive note. The trade fair emerged as a crucial meeting place for the technical textile players to rebuild their supplier links, promote industry integration and engage in lucrative knowledge exchange.

The eighth edition of Techtextil India stood out to be a ground-breaking business platform for the technical textile sector to build a new and strong foundation in the new normal. The aim of the new edition was to promote industry unification and business recovery across the value chain of technical textiles.

The event held at Bombay Exhibition Centre was inaugurated by major dignitaries, including Shri Ajit Chavan, Secretary – Textiles Committee, Ministry of Textiles, Government of India. Over the course of its three buzzing days, the show garnered an attendance of 4,087 visitors drawn by live demonstration of latest products, technologies and innovations exhibited by over 150 technical textile brands on the show floor.

The event received an overwhelming response, reflecting industry’s keen interest to explore new developments and opportunities in technical textiles. In regards to the same, Mr Abhijit Kulkarni, President – Textile Engineering Group, A.T.E. India, stated: “It was the first and best physical show also on hybrid mode filled with enthusiastic buyers and customers who visited our booth and had very fruitful discussions with us. Several leading textile manufacturers visited our stalls, including: Strata Geosystems India, SKAPS Industries, Reliance Composites, Paramount Textiles, and Welspun, to name a few.”

Alok Masterbatches Pvt Ltd, Khosla Profile Pvt Ltd, ATE Group, Lucky International, Meera Industries Limited, Park Non-Woven Pvt Ltd, Sarex Chemicals, SICAM, Suntech Geotextile Pvt Ltd and Weavetech Engineers, were among the leading Indian companies exhibiting at the show.

The significance of the three-day fair was further elevated by the German pavilion. Technical textile manufacturers from Germany, such as Autefa Solution Germany GmbH, DILO Systems GmbH, Emtec Electronic GmbH, Georg Sahm GmbH & Co, Karl Mayer Verwaltungsgesellschaft mbH, Merz Maschinenfabrik GmbH and Oerlikon Barmag Zweigniederlassung der Oerlikon Textile GmbH & Co, displayed their latest technologies on the show floor, which garnered significant attention from the Indian buyers.

The first Digital Symposium was another highlight of Techtextil India 2021. The forum delved into a series of crucial topics in technical textiles discussing PLI schemes, FDI opportunities and policies, investment opportunities in Tamil Nadu, & New Investment Opportunities, Sustainable Technical Textiles and Global sustainable approach for Textiles with Antimicrobial Performance.

Concluding on a successful note, Techtextil India 2021 emerged as a platform of new beginnings for the technical textiles sector and for businesses trying to retain their shape and seeking momentum after the tough pandemic phase.

RadiciGroup is exhibiting at the A+A trade fair, an international event focusing on safety solutions for the workplace, to be held in Dusseldorf, Germany, from 26 to 29 October. This international show gives RadiciGroup the opportunity to present its latest developments in personal protective equipment (PPE) for industrial use, including coveralls, gowns, caps, full hoods, shoe covers and boots.

This international show gives RadiciGroup the opportunity to present its latest developments in  personal protective equipment (PPE) for industrial use, including coveralls, gowns, caps, full hoods, shoe covers and boots. These products are part of a new line, Radipeople, a trade name identifying the new protective workwear sold by RadiciGroup: end products of a traceable supply chain, in which special attention is paid to the choice of raw materials and the quality of the final products offered the market.

At RadiciGroup, care for the health and safety of people is one of the pillars of the Group's sustainability strategy, combined with a strong commitment to safeguarding the environment. Radipeople Eco, the first protective coverall with 100% end-of-life recyclability is proof of such commitment. All parts of Radipeople Eco: the fabric, lamination, zipper and thread are made of the same material, 100% polypropylene. Furthermore, the Group’s offering includes garments made with Respunsible®, a spundbond obtained from recycled polypropylene or materials certified under the ISCC Plus scheme.

Thanks to their versatility and technical characteristics, the nonwoven solutions proposed by RadiciGroup are suitable for many industrial sectors, including oil and gas, utilities, construction, food, automotive painting and shipbuilding, maintenance, agriculture, laboratories, microprocessor manufacturing and the pharmaceutical and chemical industries.

Radipeople personal protective equipment delivers excellent protection against external agents (liquids, splashes, jets, particles and sprays), high protection against biological hazards and infectious agents, and high robustness and lightness to optimize protection, on the one hand, and comfort, on the other. All Radipeople protective equipment is made of fully traceable materials, manufactured by a totally Italian production chain involving hundreds of workers, and sold in packaging designed with an ecodesign approach, that is, fully recyclable minimized packaging.

• Next-Gen Technologies for Nonwovens/Engineered Materials
• Canopy Respirator from Canopy Wins Innovation Award

145 professionals in product development, material science, and new technologies convened for the 11th conference edition of RISE®—Research, Innovation & Science for Engineered Fabrics, held virtually, Sept. 28-30. The event was co-organized by INDA, the Association of the Nonwoven Fabrics Industry, The Nonwovens Institute, and North Carolina State University.

The program focused on Nonwoven Material Science Developments, Sustainability, Increasing Circularity, Promising Innovations, Process Innovations, Material Innovations, Government/NGO Challenges to Single-Use Plastics, Machine-Assisted-Learning Development of Biopolymers, and Market Intelligence and Economic Insights.

Participants praised the high-quality program content, in-depth round table discussions, networking and Q&A’s where participants ask expert speakers questions pertaining to their focused presentations.

Highlights among the 26 presentations included

• Sustainable Solutions for our Plastic Planet Predicament, by Marc A. Hillmyer, Ph.D., McKnight Presidential Endowed Chair, University of Minnesota;
• Closed-Loop Recycling Pilot of Single-Use Face Masks by Peter Dziezok, Ph.D., Director of Open Innovation, Proctor & Gamble;
• Innovating a Sustainable Future for Nonwovens: A European Perspective, by Matt Tipper, Ph.D., CEO, Nonwovens Innovation & Research Institute (NIRI);
• Phantom Platform: The Polyolefin-cellulose Coformed Substrates Technology, by Fabio Zampollo, CEO and Founder of Teknoweb Materials; 
• Guiding Environmentally Sustainable Innovations – From Reactive to Proactive Life Cycle Management, by Valentina Prado, Ph.D., Senior Sustainability Analyst, EarthShift Global LLC;  
• High-Loft, Ultra-Soft Hygiene Solutions, Paul E. Rollin, Ph.D., Senior Principal Scientist – Global Hygiene, Propylene-Vistamaxx-Adhesion (PVA) Global Technology, ExxonMobil Chemical Company;
• Canadian Plastic Policy Update, by Karyn M. Schmidt, Senior Director, Regulatory & Technical Affairs, American Chemistry Council (ACC).

Other highlights included the announcement of Canopy Respirator as the winner of this year’s RISE® Innovation Award winner. The annual award recognizes innovation in areas within and on the periphery of the nonwovens industry which use advanced science and engineering principles to develop unique or intricate solutions to problems and advance the usage of nonwovens.

RISE® Innovation Award Winner
The RISE® Innovation Award was presented to Canopy for their Canopy Respirator. The productis an innovative respirator that is fully mechanical, non-electrostatic, with a filter designed for superior breathability while offering the wearer facial transparency. The breakthrough respirator features 5.5mm water column resistance at 85 liters (3 cubic feet) per minute, 2-way filtration, and a pleated filter that contains over 500 square centimeters of surface area. The patented Canopy respirator resists fluids, and eliminates fogging of eyeglasses.

„Your reliable partner in the nonwoven industry“ – the slogan speaks for itself: Oerlikon Nonwoven is exhibiting at the world’s leading nonwovens trade fair – the INDEX in Geneva, Switzerland (October 19-22, 2021) – with one of the market’s broadest portfolios. The Neumünster-based systems constructor will be focusing on market- and customer-oriented system solutions for filtration, hygiene, medical, geotextile and other industrial applications. Trade fair visitors can delve deep into the company’s comprehensive product and process know-how both live at trade fair stand no. 2314 and via the INDEX online platform.

• Nonwovens for filtration, insulation and sorption applications
• Comprehensive spunbond portfolio
• Quality Sized Right-Technology: spunmelt systems for the hygiene and medical market
• Wipes using Oerlikon's Phantom technology
• Airlaid technology for sustainable nonwovens

• Fraunhofer, SABIC, and Procter & Gamble join forces
• The Fraunhofer Cluster of Excellence Circular Plastics Economy CCPE and its Institute for Environmental, Safety and Energy Technology UMSICHT have developed an advanced recycling process for used plastics.
• The pilot project with SABIC and Procter & Gamble serves to demonstrate the feasibility of closed-loop recycling for single-use facemasks.

Due to COVID-19, use of billions of disposable facemasks is raising environmental concerns especially when they are thoughtlessly discarded in public spaces, including - parks, open-air venues and beaches. Apart from the challenge of dealing with such huge volumes of essential personal healthcare items in a sustainable way, simply throwing the used masks away for disposal on landfill sites or in incineration plants represents a loss of valuable feedstock for new material.

“Recognizing the challenge, we set out to explore how used facemasks could potentially be returned into the value chain of new facemask production”, says Dr. Peter Dziezok, Director R&D Open Innovation at P&G. “But creating a true circular solution from both a sustainable and an economically feasible perspective takes partners. Therefore, we teamed up with Fraunhofer CCPE and Fraunhofer UMSICHT’s expert scientists and SABIC’s Technology & Innovation specialists to investigate potential solutions.”

As part of the pilot, P&G collected used facemasks worn by employees or given to visitors at its manufacturing and research sites in Germany. Although those masks are always disposed of responsibly, there was no ideal route in place to recycle them efficiently. To help demonstrate a potential step change in this scenario, special collection bins were set up, and the collected used masks were sent to Fraunhofer for further processing in a dedicated research pyrolysis plant.

“A single-use medical product such as a face mask has high hygiene requirements, both in terms of disposal and production. Mechanical recycling, would have not done the job”, explains Dr. Alexander Hofmann, Head of Department Recycling Management at Fraunhofer UMSICHT. “In our solution, therefore, the masks were first automatically shredded and then thermochemically converted to pyrolysis oil. Pyrolysis breaks the plastic down into molecular fragments under pressure and heat, which will also destroy any residual pollutants or pathogens, such as the Coronavirus. In this way it is possible to produce feedstock for new plastics in virgin quality that can also meet the requirements for medical products”, adds Hofmann, who is also Head of Research Department “Advanced Recycling” at Fraunhofer CCPE.

The pyrolysis oil was then sent to SABIC to be used as feedstock for the production of new PP resin. The resins were produced using the widely recognized principle of mass balance to combine the alternative feedstock with fossil-based feedstock in the production process. Mass balance is considered a crucial bridge between today’s large scale linear economy and the more sustainable circular economy of the future, which today is operated on a smaller scale but is expected to grow quickly.

“The high-quality circular PP polymer obtained in this pilot clearly demonstrates that closed-loop recycling is achievable through active collaboration of players from across the value chain”, emphasizes Mark Vester, Global Circular Economy Leader at SABIC. “The circular material is part of our TRUCIRCLE™ portfolio, aimed at preventing valuable used plastic from becoming waste and at mitigating the depletion of fossil resources.”

Finally, to close the loop, the PP polymer was supplied to P&G, where it was processed into non-woven fibers material. “This pilot project has helped us to assess if the close loop approach could work for hygienic and medical grade plastics”, says Hansjörg Reick, P&G Senior Director Open Innovation. “Of course, further work is needed but the results so far have been very encouraging.”

The entire closed loop pilot project from facemask collection to production was developed and implemented within seven months. The transferability of advanced recycling to other feedstocks and chemical products is being further researched at Fraunhofer CCPE.

International technology Group ANDRITZ has received an order to supply four new needlepunch lines for nonwoven production from Chongqing Double Elephant Microfiber Material Co., Ltd., China. These lines are scheduled for installation and start-up in the fourth quarter of 2021.

The needlepunch lines by ANDRITZ are designed to process islands-in-the-sea fibers dedicated mainly to the production of high-quality synthetic leather products. Once completed, the lines will produce 30 million meters a year of microfiber nonwoven materials.

The production lines are equipped with an ANDRITZ carding machine and the newly developed Profile® crosslapper as well as the advanced-technology ProWid closed-loop system from ANDRITZ. The system can monitor the weight uniformity (CV%) of the entire product online and predict the weight distribution changes caused by the bonding process. In addition, the web weight can be reduced by controlled stretching, which solves the issue of fiber accumulation at the edges caused by traditional crosslapping methods. Both the weight and the uniformity of the product can be automatically adjusted via the closed-loop function as set on the ANDRITZ gauge.

Chongqing Double Elephant Microfiber Material Co., Ltd., wholly owned by listed Wuxi Double Elephant Microfiber Materials Co., Ltd., is located in the Changshou National Economic and Technological Development Zone of Chongqing City. The company is active in the research, development and manufacture of microfiber materials, polyurethane synthetic leather and polyurethane resin.

With their recently installed high-temperature unidirectional tape line, Japan-based composites manufacturer MaruHachi enables new opportunities for high-end applications in demanding market segments like aerospace, automotive or others outperforming traditional materials based on PP and PA which are already widely available.

In the first phase, MaruHachi will produce up to 40 tons/year and focuses now specifically on high-temperature thermoplastic uni-directional (UD) tapes and multi-layer sheet laminates. The material is based on high-performance fibers like carbon, aramid, glass or natural fibers and the matrix can be high-performance polymers like PPS, PEEK or other higher temperature polymers, which are much tougher than epoxies and easy to recycle. With a width of 500 mm, a specific weight from 60 to 350 g/m2, depending on the chosen material, the lines can operate under temperatures up to 420 degrees Celsius. Working under these extremely high temperatures allows for better material properties of the final application, higher performance, increased resistance and integrated high-performance functionalities e.g. by overmoulding.

Since 2017, MaruHachi Group is active in the European market in cooperation with Dr. Michael Effing,the CEO of AMAC GmbH, who advises and supports the company strategically. The established, family-owned MaruHachi Group has a strong history in automotive and medical textiles and has been active in the innovative composites market for more than 15 years.

Toshi Sugahara, CEO of MaruHachi: “For many years, we have already been cooperating with domestic and international partners on high-demand applications and therefore, MaruHachi decided now to invest over 1 million EUR in this new line in phase 1, including a funding participation from the Japanese government NEDO. New developments in phase 2 will be be undertaken by end of 2021 on the downstream technologies like the automated preforming and consolidation. With our new products, we want to contribute to significant weight reductions of the final products, thus improve energy efficiency while offering a cost-efficient and high-quality solution.”

Dr. Effing, CEO of AMAC GmbH confirms: „The focus on the niche of high-temperature products based on PPS and PEEK allows MaruHachi on very demanding high-end applications such as structural frames on space and aircrafts, aircraft seats or engine components etc. The tapes are fully recyclable and can be processed e.g. with high-speed with laser-based tape placement machines and robots.”