Swiss Textile Machinery technology and innovations for technical textiles

Zurich, Switzerland, 29 June 2022 – Visitors to the Swiss Textile Machinery Association Pavilion at Techtextil Frankfurt were def initely in the right place to f ind technol—ogy partners for their future projects. Th ey could also see inspiring textile machinery solutions, as association mem—bers always make the most of such events as a platform for real innovation and strong partnerships. The Swiss companies have the engineering know—how and process expertise to foster genuine application development.

Technical textiles cover a vast range of applications,and it’s still growing thanks to intensive research by spe—cialist institutes and universities. Many members of the Swiss Textile Machinery Association maintain long—stand—ing partnership with such bodies. Innovations are often joint eff orts, building on the DNA of Swiss textile machinery companies – another characteristic which makes them at—tractive partners for their customers.

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 consist—ing of a three—layer—laminate: an inner lining, a breathable membrane in the center, and an outer fabric. Th e 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 protec—tion and sustainability, were reinvented by the Cavitec brand from the Santex Rimar Group. This company’s hotmelt technology uses one—component polymers ap—plied to textiles in a hot, molten state. Bonding based on hotmelts is both water— and solvent—free. Drying and ex—haust air cleaning are not necessary, which is an ecological advantage. Energy consumption is also signif icantly 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 estab—lished outdoor fashion brand. Th ey have devised a heating mat applied as an inner jacket. Outdoor gear with a heated inlay off ers the wearer a comfortable feeling even in a cold climate. The heating mat is particularly light, breathable,f lexible and adjustable to three temperature levels.

Fabrics with these advantages are now possible thanks to multi direct weaving (MDW) technology from the Jakob Mül—ler Group. A lacquer—insulated heating strand is inserted into the base textile as a ‘meander’ using MDW technology. The tech—nology is offered with both label weaving machines and the latest generation of ribbon weaving machines. The textile pocket calcula—tor 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 St?ubli enables one—piece—woven (OPW) airbags to be produced, creat—ing 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 St?ubli’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 weav—ing 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 de—veloped 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 guar—anteed final product quality.

In the orthopaedic field, many Steiger flat knitting machines have already been operating as automatic, custom—made pro—duction 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 ma—chine, precisely matching the patient’s dimensions. Each product is different, and generally available within 48 hours.

Market-ready technical textiles

Technical textiles have a compelling aura. “We ob—serve markets and companies being keen on developing in the technical textile industry. It’s challenging to establish successful business with new applications,” says Cornelia Buchwalder, Secretary General of the Swiss Textile Ma—chinery Association. “Technical textiles developments are extremely time— and cost—consuming until a product is ready to be launched. So partners can sometimes expect learning periods and uncertain ROI.”

But Swiss Textile Machinery companies have expertise spanning many decades – in some cases over a hundred years – and have the proven track record of innovation which enabled them to survive the many difficult phases the textile industry has experienced.

New ideas were exchanged, brainstormed, and dis—cussed freely at members’ booths at the Swiss Textile Machinery Pavilion during the recent Techtextil in Frankfurt.“Customers and researchers met Swiss textile machin—ery companies to explore the possibility of the not—yet—invented. “We regard our Pavilion as the place where future innovations catch a spark,” says Buchwalder. 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.