From the Sector

Cavitec, part of Santex Rimar Group, presents the redesigned Caviscreen at Techtextil Frankfurt. Caviscreen features latest technology for breathable laminates.

Caviscreen was developed as a hotmelt coating and laminating unit for breathable sportswear, rainwear and protective clothing – with and without applying a membrane. The redesigned machine shows a brand-new method to supply adhesive more evenly and precisely. Using PUR adhesive (polyurethane reactive adhesive) goes with additional benefits like strong bonding capabilities and versatility.

Caviscreen’s hotmelt screen printing is a special system for high-end application garments. With this Caviscreen system, a PUR adhesive is transferred onto the substrate through a rotary screen, similar to the well-established textile printing method. The adhesives are fed from the drum melter through a heated hose to the traversing adhesive distribution system inside the rotary screen, just behind the doctor blade.

The adhesive is pressed by the doctor blade through the screen holes and transferred to the substrate. Different dot pattern (mesh or irregularly) and different screen thicknesses allow different coating weight and adhesive coverages.

The traversing adhesive dispenser is used to distribute the adhesive automatically over the set working width that – an additional technical benefit – can be set without any mechanical changes.

Cavitec’s screen coating system achieves high bonding strength while using less adhesive than other coating processes, because of applying the coating on the surface of the substrate and like this, the adhesive has less tendency to penetrate the substrate.

Bonding strength, softness of the fabric and the breathability are defined by the coating weight and the coverage. The rotary screen allows users to regulate and adapt the coverage respectively the coating weight. Cavitec offers a large selection of screens that are essential to fulfil the fabric requirements. A further advantage is the ease and efficiency of switching from one screen to another by simply unlocking the bayonet fitting. The IR-heater cover opens pneumatically and the lightweight screen can be easily removed by hand. Unlike with other methods, there's no need to deal with hot oil or any other heated liquid that requires cooling down.

The Caviscreen technology supports manufacturers by reducing costs with screens priced at a mere fraction, just 10%, of common gravure roller prices.

KARL MAYER has already produced a wide range of electrically conductive warp-knitted items for a wide variety of applications in the TEXTILE-CIRCUIT division of its TEXTILE MAKERSPACE, including a sensor shirt, a gesture control system and a conductive charging station. In order to drive the topic of wearables forward, the textile machine manufacturer has signed a cooperation agreement with the Grabher Group and delivered an MJ 52/1-S to the specialist for high-tech textiles in Lustenau. Managing Director Günter Grabher officially inaugurated the key machine for project work in the smart textiles sector in May 2023.

The machine is involved in various research projects, but is also available for new projects and tasks. The smart textiles competence team at KARL MAYER and Grabher is looking forward to supporting the ideas and work of interested parties also outside the research network with its know-how and the possibilities of the MJ 52/1-S.

The MJ 52/1 S is also an extremely flexible project machine. The 138″ model in gauge E 28 produces a wide range of warp-knitted fabrics and incorporates conductive material directly into the textile surface - exactly where it is needed and with the structure that is required. The basis for the tailor-made fiber placement is KARL MAYER's string bar technology. The system for controlling the pattern guide bars ensures a fast, established textile production process and a high degree of pattern freedom.

Trumpler has teamed up with Archroma to offer a leather production process that can be used to produce high-performance leather in a more eco-friendly and cost-efficient way.

The new process DyTan®combines offers an alternative to existing metal-free and chrome-tanned leather. It enables the reliable production of leather with great shavability, color depth and migration and abrasion resistance. Free from metal salts and reactive aldehydes, DyTan® is suitable for a wide range of leather applications, from garment and footwear to automotive and furniture upholstery, for today’s eco-conscious leather producers and consumers.

At the core of the DyTan® process is Archroma’s patented AVICUERO® System, which is based on novel molecules that enable more sustainable leather tanning and dyeing, developed by Archroma in cooperation with leather technology consultant Dr Leather. It enables collagen fibers in the leather to be covalently cross-linked through a simplified process at low temperatures. As a result, the system shows strong potential to save energy and water, while also reducing process time and CO₂ emissions by up to 23%.*

The DyTan® process combines the AVICUERO® System with Trumpler’s bio-based fatliquors and retanning agents based on functional biopolymers produced from hydrolyzed shavings – resource-saving technology that Trumpler has been refining for 15 years.

As a global partner of Archroma, the Trumpler Group is responsible for the distribution of the AVICUERO® System worldwide. Delivering technical support and first-class customer care, Trumpler will help leather manufacturers and brands to implement sustainable tanning and draw on its comprehensive product portfolio and process knowledge of tanning, retanning and fatliquoring processes.
 

* Estimations carried out with the Archroma ONE WAY Impact Calculator show energy savings of up to 25% and reduced process time leading to a reduction in CO₂ emissions of up to 23%, compared to traditional chrome tanning. They also show significant water savings compared to other metal-free tanning systems¹. With the ONE WAY Impact Calculator, customers will be offered personalized calculations for their specific processes.

¹ Trials made at Trumpler GmbH application lab.

At the crosswinds of China’s 14^th Five-Year Plan for the Development of the Marine Economy and its 14^th Five-Year Guidance for the Development of the Technical Textiles Industry lies the marine textile sub-sector. Following the government’s directive, the Marine Textile Zone will be unfurled at this year’s fair, taking place from 19 – 21 September 2023 at the Shanghai New International Expo Centre. Multiple exhibitors from across China have confirmed their participation within the zone, which will be comprised of three main parts: green marine science and nautical rope netting innovation display area, the Technology Exchange Forum, and the awards ceremony of the Top 10 Suppliers in the China Rope Net Industry.
 
The global rope market is predicted to experience a CAGR of 5.6% and grow by over USD 4 billion between 2022 - 2027[1], and suppliers are eager for the chance to meet buyers face to face. In fact, many will use the new zone at Asia’s leading technical textiles and nonwovens fair to do so.

In the green marine and rope netting category, exhibitors will showcase the latest innovations along the marine textile industry chain, anchored by application areas such as marine engineering, marine economy, marine fencing, marine rescue, deep-sea fishing, deep-sea aquaculture, and many more.

Featured exhibitors include:

• Ropenet Group: covering 36 application areas, such as aerospace, marine fisheries, safety protection, and emergency rescue, the Shandong-based company has exported to over 110 countries and regions. Products include ropes, nets, threads, and belts, with new materials and high-performance synthetic fibre spinning ropes forming the core of its business.
• Hunan Xinhai: with its Hunan factory covering 200,000 sqm, its industry-leading rope net production scale ensures it can service multiple sectors such as fisheries, sports, military industry, marine engineering, life-saving protection, and many more. Its extensive network spans Asia, Africa, Europe, and beyond.
• Zhejiang Four Brothers Rope: located in Zhejiang Toumen Port Economic Development Zone, the special chemical fibre rope manufacturer integrates R&D, manufacturing, sales, and after-sales service. After nearly 60 years of operation, the company now has a yearly production capacity of over 15,000 tons.

Other notable exhibitors in this zone include Xuzhou Henghui Braiding Machine; Shandong Jinguan Netting; Jiuli Rope; and Zhejiang Hailun Rope Net.

Meanwhile, the Technology Exchange Forum will focus on policies and regulations, strategic development opportunities, market analysis, product and process innovation, and the promotion and application of marine textiles. A range of well-known international and domestic experts have been invited to deliver comprehensive industry analysis, and unveil oceanic green textile initiatives onsite.

Designed to expand the influence of the rope net industry, the Top 10 Suppliers in the China Rope Net Industry awards will highlight enterprises currently making key contributions. Other fringe events related to this textile sub-sector include the Conference on Textile Applications for Marine Engineering and Fisheries, and the China Nonwovens & Industrial Textiles Association (CNITA) Rope Net Branch Council Meeting.

Lastly, the Marine Textile Zone will also encompass a business negotiation area to facilitate negotiations between key players onsite, set against the backdrop of the innovation display area’s award-winning and patented rope net products. As a whole, the zone is expected to encourage independent innovation in marine science and technology, coordinate the protection and development of marine resources, and help build a modern maritime industrial system.

The fair’s product categories cover 12 application areas, which comprehensively span a full range of potential uses in modern technical textiles and nonwovens. These categories also cover the entire industry, from upstream technology and raw materials providers to finished fabrics, chemicals and other solutions. This scope of product groups and application areas ensures that the fair is an effective business platform for the entire industry.

The fair is organised by Messe Frankfurt (HK) Ltd; the Sub-Council of Textile Industry, CCPIT; and the China Nonwovens & Industrial Textiles Association (CNITA).

Climate change is causing temperatures to rise and storms to increase. Especially in inner cities, summers are becoming a burden for people. While densification makes use of existing infrastructure and avoids urban sprawl, it increases the amount of sealed surfaces. This has a negative impact on the environment and climate. Green facades bring more green into cities. If textile storage structures are used, they can even actively contribute to flood protection. The German Institutes of Textile and Fiber Research (DITF) have developed a corresponding "Living Wall".

The plants on the green facades are supplied with water and nutrients via an automatic irrigation system. The "Living Walls" operate largely autonomously. Sensory yarns detect the water and nutrient content. The effort for care and maintenance is low.

Innovative hydraulic textile structures regulate water flow. The rock wool plant substrate on which the plants grow has a large volume in a small space thanks to its structure. Depending on how heavy the precipitation is, the rainwater is stored in a textile structure and later used to irrigate the plants. In the event of heavy rainfall, the excess water is discharged into the sewage system with a time delay. In this way, the "Living Walls" developed at the DITF help to make efficient use of water as a resource in post-densified urban areas.

The research project also scientifically investigated the cooling performance of a green facade. Modern textile technology in the substrate promotes the "transpiration" of the plants. This creates evaporative cooling and lowers temperatures in the surrounding area.

The work of the Denkendorf research team also included a cost-benefit calculation and a life-cycle analysis. Based on the laboratory and outdoor studies, a "green value" was defined that can be used to evaluate and compare the effect of greening buildings as a whole.

As a trade fair for safety and occupational health in China, the 104th China International Occupational Safety & Health Goods Expo (CIOSH 2023), organized by China Textile Commerce Association (CTCA) and Messe Düsseldorf (Shanghai) Co., Ltd. (MDS), will be grandly held at the Shanghai New International Expo Centre (SNIEC) Hall E1-E7 from 13-15 April 2023. Following three years of epidemic prevention and control measures, the situation has stabilized in China, allowing the labor protection market to enter a phase of rapid recovery and rebound. CIOSH 2023 will attract over 1,500 exhibitors from 14 countries, showcasing their latest protective equipment and technology in an exhibition area exceeding 80,000 square meters.

Integrating Online and Offline Platforms
CIOSH 2023 encompasses four major sectors: Safety at Work, Security at Work, Health at Work, and Emergency Rescue Management. Renowned domestic and international exhibitors, including 3M, Honeywell, Ansell, SATA, JSP, MSA, DELTAPLUS, Lakeland, Cortina, UVEX, CM Chaomei, Xing Yu Gloves, DS, East Asia Glove, Hanvo, SOMO Zhongmai Safety, SAFETY-INXS, and TELPS, will assemble on site. At the same time, CIOSH 2023 has introduced an innovative online platform - CIOSH VIRTUAL. By offering online displays, live streaming, interactive features, and real-time communications, it breaks time and space constraints, facilitating exhibitors and visitors to continue their business exchanges and cooperations beyond the physical exhibition. So far, nearly 1,300 companies have joined the CIOSH VIRTUAL, showcasing more than 3,000 products online and attracting over 70,000 views.

CIOSH Industry Technical Seminar, Sustainable Development Emerges as the Key Focus
The annual Industry Technical Seminar, held concurrently with CIOSH, serves as a platform for professionals to discuss product solutions, share industry insights, and exchange ideas on relevant policies. In 2021, China integrated climate change mitigation measures into its 14th Five-Year Plan, established a 2030 carbon peaking action plan, and proactively pursued the goal of carbon neutrality by 2060. Under the development objectives of "carbon peaking" and "carbon neutrality," the sustainable development of the personal protective equipment (PPE) industry has become the primary theme of this year's seminar. Experts from China Carbon Low-carbon Certification (Jiangsu) Co., Ltd., China Certification Centre, Inc., and SGS-CSTC Standards Technical Services Co., Ltd., will examine related policies, the effects of "carbon neutrality" on the PPE industry chain and the industries using PPE from different angles. They will also explore the future direction of PPE and offer professional guidance for the transformation of relevant enterprises.

Fall Protection Zone
Falls from height are one of the most common accidents that cause serious injury or death to workers. Effective fall protection requires not only protective equipment, but also professional instructions and training. Therefore, CIOSH set up a new Fall Protection Zone in 2021, which received unanimous acclaim. CIOSH 2023 has continued to invite SKYLOTEC, rothoblaas, JECH, Mode and NTR Safety, five companies that specialize in protection at height, to conduct on-site demonstrations on fall testing, fall protection solutions and aerial rescue, and provide visitors with the most professional fall protection guidance and training.

Occupational Health
CIOSH has always implemented the strategy of expanding the business scope in a diversified way, which devotes itself to providing innovative opportunities and new driving forces for the sustainability of the occupational safety and health industry. This year, focusing on the "occupational health" sector, the exhibition will launch an Ergonomics Zone and an Exoskeleton Technology Zone for the first time.

A new cold chamber at its headquarters in Winterthur, Switzerland, enables Autoneum to optimize existing technologies as well as simulation and engineering services in vehicle thermal management and to adapt them to the changing thermal requirements of electric vehicles

The absence of heat from the internal combustion engine in electric vehicles as well as the impact of ambient temperature on the performance and lifetime of lithium-ion batteries are changing the requirements for vehicle thermal management. In addition, the energy from the battery is used not only to power the e-motor but also to thermally manage the battery itself and to warm and cool the car cabin by means of the heating, ventilation and air conditioning system. To increase the thermal comfort of the occupants and at the same time ensure optimum battery performance, save energy and thus increase the car’s range, manufacturers are placing increasing emphasis on efficient overall thermal management of the vehicle.

The chamber enables to test both occupants’ subjective perception of thermal comfort and the performance of components and entire vehicles under controlled temperature conditions of up to minus 20 degrees Celsius. It is thus a valuable addition to the existing testing and bench-marking facilities at the Company’s global research and development centers. The tests conducted in the chamber show how existing insulating components such as under battery shields, carpets and interior trim need to be optimized to further enhance the thermal management of the vehicle battery and cabin. The tests also provide valuable insights regarding the development and optimization of heated surfaces such as floor mats and door trim panels to improve thermal performance and driver comfort of electric vehicles.

Medline, a medical product distributor and manufacturer, together with Hologenix® launched a new line of CURAD® Performance Series® orthopedic products powered by CELLIANT® infrared technology.

CELLIANT, the flagship innovation of Hologenix, is a proprietary blend of natural minerals that allows textiles to convert body heat into infrared energy, returning it to the body and temporarily increasing local blood flow and cellular oxygenation. This has been clinically demonstrated to support recovery from physical activity and fatigue, increase endurance and stamina, and boost overall performance in healthy individuals, among other benefits.  

Trusted by athletes, CURAD is the Official Medical Supplier of the IRONMAN® U.S. Series. The new orthopedic products powered by CELLIANT infrared technology are the latest additions to the CURAD Performance Series collection and including different infrared supports designed for the ankle, knee, back, shoulder, as well as multipurpose use.

“This new CURAD Performance Series offering represents a major expansion of CELLIANT infrared (IR) bio-responsive textiles into the sports medicine field,” said Seth Casden, Hologenix Co-Founder and CEO. “We are honored to partner with Medline and look forward to future introductions.”

In addition to the inclusion of CELLIANT infrared technology, Medline has engineered the elastic supports to provide targeted compression for enhanced local circulation that helps reduce swelling, with a contoured fit that won’t slip or shift during normal activities with silicone grips that keep the product in place.

The removable hot/cold therapy supports provide adjustable compression and a gel compress that can be cooled or heated to further reduce swelling and discomfort.

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.

The DiloGroup informs at Techtextil in Frankfurt (June 21 – 24, 2022) about new developments aimed at improving production technologies with a focus on needlefelts.

It becomes more evident that the textile industry comes into the focus of regulatory authorities who push respecting sustainability principles and who initiate a new body of laws. Hence all industrial sectors are requested to achieve savings in material and energy. The textile machine building, of course, plays an important role by seizing this initiative and offering solutions for fibre pulp recycling and reduction of energy, water and ancillaries. DiloGroup has made big efforts to meet these challenges together with a circle of partner companies. In this regard focal points of the development work are:

1. Intense Needling
   Needling per se is a mechanical production method with a high energy efficiency. For this reason, the development efforts of DiloGroup aim at producing nonwovens by “intense needling” instead of water entangling, even for light nonwovens made of fine fibres for the medical and hygiene sector with an area weight of 30 – 100 g/m². This would result in a reduction of the environmentally relevant production costs; per annum to about 1/3 to 1/5 of current.
   Despite the prospective advantages of the mechanical intense needling method over the hydrodynamical, water entanglement is at the moment the most important production method for low area weights and highest production capacity and is also offered by the DiloGroup as general contractor in cooperation with partner companies.
2. “Fibre Pulp Recycling”
   Fibrous material in nonwovens and particularly used clothes can be successfully recycled, if staple length can be conserved in the tearing process. In the classical tearing process, staple lengths are dramatically reduced and therefore these fibres can only be used as base material for inferior uses in thermal or acoustic insulation or in protective textiles, transportation or protective covers etc.
   When recycling textile waste in the context of the collection of used clothes, the so called “filament-saving” tearing using special tearing machines and methods must be used to produce fibres with longer staple lengths which can be fed to a nonwoven installation. Hence product characteristics can be better specified and controlled.
3. Additive nonwoven production
   The additive production method of the “3D-Lofter” is especially suited for automotive parts with differently distributed masses; but there may also be potential for increasing uses in the sector of apparel and shoe production.
4. “IsoFeed”-card feeding
   In the field of card feeding, the “IsoFeed” method offers great potential for a more homogeneous card feeding at the same time reducing the variation in cross-machine fibre mass distribution and thus the fibre consumption while conserving the end product quality.