From the Sector

• Focus on straightening technology and process control

At Indo Intertex, held from 10 to 13 August in Jakarta, visitors get to see the Mahlo-way for process control in textile production. The German machine manufacturer and its partner agency Agansa Primatama will be available to show everyone its leading straightening technology as well as energy saving concepts around the stenter frames. INDO INTERTEX is South East Asia’s largest trade show on the textile and garment industries, bringing together leaders to experience world-class manufacture, technology and solutions.

Indonesia is one of the ten biggest textile producers in the world. Especially the USA, the European Union and Japan import a majority of their requirements from the Southeast Asian Island state. In order to fulfill the increasing demands and the call for high quality goods, producers invest in machinery, equipment and technology.

At IndoIntertex, Mahlo informs about its straightening machine Orthopac RVMC-15, among other. Based on experience reaching back to over 75 years, the machine offers the latest technology for correcting distortions. The modular straightening and process control system ensures a straight-thread product before and after the drying or fixing process and optimises the processes all around the stenter. This increases quality and saves resources and energy. The process control system Optipac VMC-15 measures and controls critical parameters such as dwell time, thread density or residual moisture.

International technology group ANDRITZ will be presenting its nonwovens production solutions at CINTE 2022 in Shanghai, China – one of the main trade fairs for technical textile and nonwoven products in Asia. ANDRITZ will show its product portfolio covering state-of-the-art nonwovens and textile production technologies such as air-through bonding, airlay, needlepunch, spunlace, spunbond, wetlaid/WetlaceTM, converting, textile finishing, recycling, and natural fiber processing.

ANDRITZ supports nonwovens producers in the move to sustainability with the aim of reducing or eliminating plastic components while maintaining the high quality of the desired product properties. This applies to all types of sustainable wipes, such as flushable, biodegradable, bio-sourced, carded pulp or standard carded wipes. The latest development in this field is the ANDRITZ neXline wetlace CP line, which integrates the carded-pulp (CP) process. This is a fully engineered production line combining the benefits of drylaid and wetlaid technologies to produce a new generation of biodegradable wipes.

The neXline wetlaid aXcess targets smaller and medium production volumes and has been devised for new and existing lines. The line is easy and fast to ship due to the compact design, which also fits perfectly into containers. An operator-friendly configuration and versatile design ensure efficient production at affordable investment costs.

The aXcess range was specially developed at ANDRITZ (China) Ltd. Wuxi Branch to handle medium capacities. The facility in Wuxi has an experienced platform for production and service specially geared to serve the Asian nonwovens industry. With the aXcess range, ANDRITZ has developed a hybrid line combining European and Chinese machines, which is the ideal combination to obtain the best added value from each component in the line and be very flexible to accommodate different business cases.

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 recent Techtextil show in Frankfurt emphasised the diversity of applications for nonwovens and technical textiles, according to finishing technology specialist Monforts.

“We fielded enquiries at top management level from an extremely wide range of companies, all with very different ideas for new product applications during the show,” said Alexander Fitz, who joined the company a year ago as engineer for textile technologies and co-ordinator of the Monforts Advanced Technology Centre (ATC). Fitz brings a background in both technical textile technology and processes to the role, having previously worked for a nonwovens machinery builder and a roll-goods manufacturer.

Trials
“We are now looking forward to interesting new trials and pilot production runs, as well as the commissioning of new orders for machines resulting from the extremely busy exhibition,” he says. “Obviously, everyone at the moment is looking to make energy savings, and we have developed a range of options for helping companies increase their resource efficiency, both on new lines and as retrofitted systems, but this is not stifling innovation at the new material level.

“There was a lot of interest in what is possible with the Montex®Coat coating system and the range of different techniques it enables, and at our ATC in Mönchengladbach, a Montex®Coat unit is integrated into the full technical textiles pilot line, on which it is possible to run new fabrics in widths of up to 1.8 metres.”

Explosion proof
The technical textiles line at the ATC incorporates a Montex four-chamber stenter and is fitted with an explosion-proof coating application chamber in order to allow treatment to be carried out with organic solvents and other volatile materials.

Every single component within the chamber has to meet the standards of the European Union’s ATEX directives for working in a potentially explosive atmosphere. A range of sensors linked to alarms operate at various levels within the chamber to ensure the specified lower explosion limit (LOL) is never exceeded and the ventilation adapts accordingly.

Advanced functions
Special features on the finishing line relate to further advanced functions such as the ability to treat materials not only at temperatures of up to 320°C, but also to be able to treat the top and bottom faces of certain materials at different temperatures within a single pass through the machine.

To achieve this, the first two chambers of the stenter are fitted with special, heavy duty TwinAir ventilation motors and separate burners for individual top/bottom temperature. A temperature differential of up to 60°C can be achieved between the upper and lower nozzles within the chamber, depending on the treatment paramenters.

Another key feature of the technical textiles line at the ATC is the special stretching device which is capable of pulling ten tons in length and ten tons in width – a huge amount per square metre of fabric and necessary in the production of materials such as woven or 3D knits for high temperature filter media.

Albstadt-based Mayer & Cie. has been named a Top 100 award-winner for the third time as one of Germany’s most innovative small and mid-range businesses. The jury made special mention of the circular knitting and braiding machine manufacturer’s innovative processes. At the centre of the family firm’s further digital development is on the aim to boost its customers’ productivity. Last Friday, 25 June, members of the Mayer & Cie. management received the award from the science journalist Ranga Yogeshwar at the SMB summit in Frankfurt am Main.

For some time now, the focus of development work at Mayer & Cie. has been on lean management in assembly processes, on optimisation of aftersales service, including setting up an online shop for spare parts, and on product lifecycle management, or PLM, which stands for a concept of seamless integration of all the information that arises during a product’s lifecycle. A clean data structure is the basis for these measures, it’s called the “digital backbone”. It means that all product data is processed in the same database and all information is available only once and can be downloaded immediately.

In all, 436 companies, including about ten per cent from machinery and plant engineering, competed for the Top 100 seal of innovation this year. Nearly 300 were successful and were congratulated in person by Ranga Yogeshwar at the SMB summit. He noted that the award winners set a role model example. “Innovators are thought leaders; they are always pioneers too,” said Yogeshwar, who mentors the competition. “They put their products to the test and ask themselves what an ecological society and a climate-oriented world will require of them. And they check the opportunities and challenges that increasing digitisation will bring for forms of cooperation, social relationships and, with them, for employee retention.”

Monforts is introducing a range of modular upgrades that can be added to existing finishing lines already in production.

The Monforts universal Energy Tower – a flexible, free-standing air/air heat exchanger for recovering the heat from the exhaust air flow of thermal processes – can result in a 30% reduction in the energy consumed by a line, depending on the exhaust air volume and operating temperature.

A Monforts Eco Booster, completely integrated into the chamber design of the Montex stenter, is another retrofitting option. As a single state-of-the-art heat recovery system with automatic cleaning, it can be added to existing ranges. For ranges of up to eight chambers only one module is necessary to achieve significant energy savings.

On an eight-chamber stenter with an operating width of two metres carrying out a fixing process on a 150gsm woven fabric, for example, the energy savings have been calculated to be 35% over an annual schedule of 6,000 operating hours.

In addition, the Eco Booster consumes only minimal amounts of water during the cleaning cycle and the entire process is controlled and monitored automatically.

The Matex Eco Applicator is an alternative to the conventional padding process for energy-conscious finishing and achieving considerable savings in the energy required for drying treated fabrics. The precise amount of chemical can be applied to the fabric and with less residual moisture after application of only approximately 35% so that less drying capacity is required in the stenter, which leads to huge energy savings.

Finishes can be evenly applied on either or both sides of the fabric, and two separate treatments can be applied to front and back. This makes the unit ideal for the production of, for example, double-performance hydrophobic/hydrophilic fabrics for professional clothing, as well as the over dyeing or finishing of denim fabrics.

Archroma, a global leader in specialty chemicals towards sustainable solutions, and Baldwin, a leading global manufacturer and supplier of precision spray systems and technology for sustainable textile manufacturing, announce a new collaboration to optimize performance and resource saving in the finishing department.

The two companies aim to support textile manufacturers in their development projects, targeting to improve their product safety, performance and functionality, while at the same time maximizing the productivity and resource utilization of the finishing application process.

Archroma and Baldwin are collaborating in multiple projects that combine Archroma’s most sustainable product innovations with Baldwin’s Texcoat G4.

TexCoat G4 is a non-contact spray technology for textile finishing and remoistening, designed to allow a controlled and optimal coverage of the exact amount of finish chemistry for reaching specific characteristics of the fabric. The system can be used to reduce water consumption by as much as 50% compared to traditional padding application processes.

Archroma and Baldwin are currently testing Archroma’s finishing products and systems, such as the soon-to-be-launched PFC-free* Smartrepel® Hydro SR for water-based soil repellence, as well as metal and inorganic particle-free antimicrobial technologies like Sanitized T 20-19 and TH 15-14, which will be launched at the upcoming Techtextil 2022.

The first test results will be available for discussions with both partners at Techtextil at their respective booths.

SHIMA SEIKI MFG., LTD. of Wakayama, Japan, along with its Italian subsidiary SHIMA SEIKI ITALIA S.p.A., will be participating in the Techtextil exhibition in Frankfurt, Germany from the 21st till the 24th of June 2022.

On display will be SHIMA SEIKI’s latest innovation in flat knitting technology as applied to the field of technical textiles—a prototype weft knitting machine capable of multi-axial yarn insertion. Fabrics produced on this machine use inlay technique for the production of hybrid textiles that combine the stretch characteristics of knitted fabrics with the stability of woven textiles, suited to various technical applications. To this, warp yarn is inserted to further expand its capability to produce 3D-shaped carbon fiber and composite preforms directly on the machine. This is made possible by taking advantage of the fact that flat knitting as a textile production method is capable of producing end products that are shaped-to-form and with added thickness. Compared to current methods of preform production, savings in post-processing time, material, labor and associated costs are immense, realizing efficient and sustainable production. SHIMA SEIKI’s own yarn unwinding technology is also used for optimum yarn feed and tension for use with technical yarns that are otherwise difficult to knit. Industrial textile samples knit on the multi-axial machine will also be available for examination on-site.

SHIMA SEIKI's SDS®-ONE APEX4 3D design system will be available for demonstrations as well. Of particular interest should be its ultra-realistic simulation capability that realizes Virtual Sampling. When countless variations must be evaluated before arriving at a final design, virtual product samples can be used to streamline the decision-making process by minimizing the enormous amount of time, cost and material normally associated with producing actual samples for each variation. When approved, the same data can be converted to machine data for immediate knitting, significantly reducing lead times.

With the purchase of the latest technology, iSAVER® by Itema, in weaving machines, ISKO pushes the envelope of technological performance and sustainability, making further progress in product and process efficiency.

This decision is an additional, important asset in ISKO’s journey towards a genuine Responsible Innovation™. It is part of other crucial investments made by the company, aimed at further reducing its environmental impact, among which stand out R-TWO™50+ – a new denim generation made with a minimum of 50% pre- and post-consumer recycled blend – and the Green Machine – a pioneering technology providing a 100% post-consumer recycling solution that fully separates and recycles cotton and polyester blends at scale.

After an intensive process, a selection was made where ISKO focuses on the development of technical solutions that enable greater resource savings and more sustainable production methods, always with the protection of workers at heart.

As a result, ISKO’s Headquarters extend the company's long-term relationship with Itema,
strengthening the company’s position as the mill with one of the world’s largest denim capacities. The new rapier machines are enhanced by the iSAVER® technology, a breakthrough mechatronic innovation that eliminates the waste selvedge on the left side of the fabric, allowing for saving in energy and raw materials, cutting in half the cotton waste that typically results from the weft yarn. All types of ISKO’s innovative fabrics, with a multitude of different constructions and fiber mixtures, can now be produced using these advanced weaving technologies, with a special focus given to the R-TWO™ technology in terms of its sustainable credentials.

SHIMA SEIKI MFG. will participate in the ITM 2022 International Textile Machinery Exhibition in Istanbul, Turkey.

SHIMA SEIKI will exhibit a wide range of its products, including proposals in seam-free WHOLEGARMENT® knitting technology that offers an alternative to labor-intensive manufacturing in Turkey and other international markets. Featured is the flagship MACH2XS WHOLEGARMENT® knitting machine with original SlideNeedle™ on four needle beds and spring-loaded moveable sinkers with expanded patterning capability, the MACH2VS V-bed machine for producing WHOLEGARMENT® items using every other needle, as well as the compact SWG091N2 for producing smaller WHOLEGARMENT® items and accessories. A brand new proposal in V-bed WHOLEGARMENT® knitting will also be introduced in the form of the N.SVR183 machine. N.SVR123SP features a special loop presser bed that can produce hybrid inlay fabrics with both knit and weave characteristics. N.SVR123SP at ITM will feature the special i-Plating option, capable of alternating yarn colors in any pattern, producing jacquard-like designs using plain jersey stitch for even greater diversity in knit design. Meanwhile N.SSR112 offers industry-leading technology in an economical yet reliable package made in Japan. Also on display is the SFG20 glove knitting machine.

Demonstrations will be performed on SHIMA SEIKI’s SDS®-ONE APEX4 design system. At the core of the company’s “Total Fashion System” concept, SDS®-ONE APEX4 provides comprehensive support throughout the production supply chain, integrating production into one smooth and efficient workflow from yarn development, product planning and design, to production and even sales promotion. Especially effective is the way SDS®-ONE APEX4 improves on the design evaluation process with its ultra-realistic simulation capability, whereby virtual samples replace physical sampling, consequently reducing time, cost and material that otherwise go to waste. The same capability is present in APEXFiz™ subscription-based design software. Installed on personal computers, APEXFiz™ features the same functionality as SDS®-ONE APEX4, but with the added versatility to adapt to different work styles and business environments including teleworking and telecommuting. Digital prototyping using virtual samples on SDS®-ONE APEX4 and APEXFiz™ help to digitally transform the fashion supply chain for realizing sustainable manufacturing. APEXFiz™ will be shown along with SHIMA SEIKI’s yarnbank™ digital yarn web platform that further enhances the realism of virtual samples.