From the Sector

• Strategic partnership for automation system in the field of slot dies and coextrusion adapters

Reifenhäuser Extrusion Systems (RES) - the Reifenhäuser Group's business unit specializing in extrusion components - announces a strategic partnership with maku AG at K 2022, the world's largest plastics trade fair. The aim of the cooperation is the joint marketing and further development of the automation system designed by maku for coextrusion adapters and slot dies.

The so-called PAM system (precise, autonomous, mechatronic) is available immediately and exclusively as an automation option for new Reifenhäuser dies and adapters, as well as for aftermarket dies across all manufacturers. PAM enables producers in the field of flat film and sheet production as well as extrusion coating to precisely control the entire hot part (coextrusion adapter and die) via the line's control panel. This is significantly faster and more accurate than conventional control by hand or expansion bolt automation. It enables faster start-up of good production, higher output with lower energy consumption, and thus significantly improved overall equipment efficiency (OEE). The decisive advantage lies in the use of motorized manual adjustment bolts that replace conventional thermal expansion bolts. Reifenhäuser presented the system for the first time at the K 2022.

The identification of profitable new niche markets has been central to the success and continuous expansion of Germany’s Dolinschek, a leading knitting, dyeing and finishing specialist, located in Burladingen in Baden-Württemberg.

“There is so much more to textiles than just clothing,” says Theo Dolinschek, who runs the company with his brother Erwin. “We handle many different technical materials such as automotive components, geotextiles and wallcoverings, but also those for more unusual applications such as inlays for extractor hoods, cut protection fabrics and even wool felts which are employed as insulation on wind turbines.

“We have also recently started to produce compression stockings in a variety of colours, because not everyone wants them black, beige or skin coloured. The most important product areas for us now are in sportswear, corsetry and lingerie, as well as orthopedic and medical products, workwear and protective clothing, but in addition, many other technical applications.”

The Dolinschek brothers moved their business to the historic site of the former Ambrosius Heim textile company in Burladingen in 2001 in order to expand. At the time, the company – founded by their father in 1980 as a textile wholesaler before moving into dyeing – employed just 13 people. Within a year, the company had bought additional space at the site.

Now, with Theo in charge of technology and sales, and Erwin responsible for production, the company employs almost 100 people and operates on an integrated site of 35,000 square metres.

In 2005, a laminating department was established by the company and since 2012 investment in knitting machines has been ongoing.

“The further we went into vertical integration, the more of our own products we were able to position on the market and so we were also able to make ourselves more independent,” says Theo. “We have continued to develop and today we can produce high-quality fabrics for many fields, with 42 knitting machines, 36 dyeing machines, three stenter frames and many other production and processing machines.”

Dolinschek has also developed its own proprietary TMG dyeing machines which have subsequently been successfully sold to many other companies all over the world. There are currently 11 of these machines  in operation at the Burladingen site and around 45 installed at other companies.

For finishing technology, however, the company relies on Monforts, and has installed a new seven chamber Montex TwinAir stenter range with a Montex®Coat coating unit in knife execution, enabling the coating of dimensionally stable knitted fabrics with polyurethane or acrylate. Another unique feature is the Teflon-coated (non-stick) transportation belt through the system.

The Montex line is also equipped with integrated heat recovery and exhaust gas purification to ensure the most resource-efficient processing available on the market. The exhaust air goes from the Monforts heat recovery system into an existing air/water heat recovery system and then into an electrostatic precipitator.

Highly-intuitive Monforts Qualitex visualisation software allows all machine functions and process parameters to be assessed and controlled easily.

Freudenberg Performance Materials (Freudenberg) has concluded a high-volume, multi-year contract with a global automotive tier one supplier to supply high-performance gas diffusion layers for the stacks forming the core of the fuel cell systems produced by the leading automotive supplier. Global target applications are mid-sized and heavy commercial vehicles as well as buses. Freudenberg is supporting the customer’s global fuel cell activities, thereby also accelerating the breakthrough of mass-produced fuel cell stacks.

Fuel cell technology is an important element of a successful energy transition. Gas diffusion layers play a key role in this context: they are indispensable for the functioning of a fuel cell and have a significant impact on the performance of a fuel cell stack.

A fuel cell converts the chemical energy of hydrogen and atmospheric oxygen into electricity. Functionally-optimized gas diffusion layers made of carbon-fiber based nonwoven are installed on both sides of a catalyst-coated membrane positioned in the middle of the fuel cell. The gas diffusion layers distribute hydrogen and oxygen evenly to the membrane and remove the electricity, heat and water generated by the CO₂-free chemical reaction. They also protect the sensitive membrane and are optimized to suit the bipolar plate. A fuel cell stack is made up of several individual fuel cells.

Freudenberg already has more than 20 years of unique expertise in the development and production of gas diffusion layers for fuel cell applications in the mobility sector and for porous transport layers used in electrolyzers. Freudenberg is currently expanding its production capacity at its Weinheim headquarters by installing additional lines. Further investments are on the verge of implementation.

DiloGroup will be attenting India ITME 2022 (December 8 – 13, 2022), an exhibition for the textile industry, which offers a central forum for dialogue within the textile production sector, including textile machine building, fibre production, ancillaries and accessories. For DiloGroup this event is a good oppportunity to inform customers and interested parties about new developments aimed at improving production technologies with a focus on needlefelts.

Focal points of the development work are:

1. Intense Needling:
   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.
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. It is also suited for 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.

HEATHCOAT FABRICS partnered again with BRÜCKNER Textile Technologies and their sales partner ADVANCED DYEING SOLUTIONS to install a finishing line for industrial textiles. HEATHCOAT FABRICS specializes in the production of technical textiles in the fields of texturising, weaving and warp knitting as well as dyeing and finishing. The prroducts are manufactured for use in the automotive, healthcare, defence, and aerospace industries

Mrs. Regina Brückner, CEO and owner of the BRÜCKNER Group stated: "To meet the complex re-quirements of HEATHCOAT is not easy because of the great variety of technical textiles produced. Our line has to finish light as well as heavy articles, so the design, control and the whole line layout have to be flexible, functional and still easy to operate. Fortunately, the team at HEATHCOAT FABRICS is very innovative and open-minded, and together we worked hard to develop the right technology and han-dling. We are very happy that we could convince this customer, whom we appreciate very much, with the productivity of our line and of course with our technological know-how."

The direct gas heated BRÜCKNER POWER-FRAME stenter with its staggered heating source arrangement every half zone provides best available temperature consistency across the length and the width of the stenter. The unit is equipped with a low-lub, horizontally returning combined pin / clip chain and several fabric paths, especially designed for the different fabrics being processed. Together with HEATHCOAT FABRICS technologists, the BRÜCKNER design team developed a special delivery end of the stenter with different edge trimming and slitting possibilities. Depending on the kind of products, the fabrics can be batched on large diameter A-frames, wound on cardboard tubes or plaited into trolleys.

Baldwin Technology Co. Inc. and Fi-Tech Inc. join partnership to ensure service amid growing demand for sustainable solutions. Fi-Tech Inc. will represent Baldwin Technology Co. Inc.’s complete textile and nonwoven product lines as its sales agent in the U.S. and Canada.

Founded in 1972 and headquartered in Richmond, Virginia, Fi-Tech is an agency and distribution firm for textile and non-woven machinery. Its initial focus was on synthetic fibers and nonwovens and it has since expanded its portfolio to represent manufacturers of complete machines or technical components used in the production of nonwovens, synthetic fibers, polymer, textiles, converting, perforated products and tobacco processing. Fi-Tech also maintains a spare parts inventory for many of the companies it represents.

“With the increasing demand of Baldwin’s finishing technology, we needed to find the right partner for sales promotion in the U.S. and Canadian markets for knits, wovens and non-wovens,” said Rick Stanford, Baldwin Technology’s VP Global Business Development, Textiles. “Fi-Tech of Richmond, Virginia is the perfect partner. They are well established in the textile and non-wovens industry and their portfolio of principals provides excellent synergy with Baldwin’s precision spray and plasma treater systems.”

Baldwin’s solutions are used in a wide variety of fabrics from basic jersey and fleece with softening and anti-microbial finishes to technical fabrics such as outdoor gear, military, upholstery, automotive and industrial fabrics utilizing the latest in technical finishes such as DWR, soil release, flame retardants and insect repellent among others.

Sustainable fashion brands YesAnd & Kornit Digital are teaming up with the global platform fostering innovation in the fashion industry, Fashinnovation. This month, the three like-minded companies will be unveiling a direct-to-garment printing collaboration.
 
YesAnd & Kornit Digital are (e)co-creating digital, on-demand printed certified organic blank merchandise, with graphic designs by artists, celebrities, influencers, musicians, fashion VIPs, NGO’s and more. Sharing core values of fashion & innovation & non-toxic, zero-waste production, and the fusion of technology to accelerate impact, this launch represents a cutting-edge and sustainable solution that’s accessible, traceable, customizable, and scalable. By joining forces, this collaboration will educate, engage, and activate both consumers and industry alike.
 
"We at Fashinnovation have a strong belief that the fashion industry must walk side-by-side with innovation, in order to ensure a sustainable future. We are thrilled for this collaboration with YesAnd and Kornit, as we hope to set an example when it comes to the power of unity. In our minds, it's not about a person's wins, but rather it's about our collective progress," said Jordana & Marcelo Guimaraes, Founders of Fashinnovation.
 
Debuting the first of their brand collaborations with farm-to-print organic merchandise, this collaboration will together minimize waste, water, chemical use, and energy, while celebrating climate action, manufacturing efficiencies, and sustainable innovation—representing a true and timely fashion statement. The brands will be debuting their select blank styles of digitally-printed designs from the initial capsule collection—including the YesAnd Frida Hoodie, Gloria Hoodie Tee, Dominique Tee, and the Samata Dress, with a graphic option aligning the missions of YesAnd, Fashinnovation and Kornit Digital, “Don’t Wear Clothes, Wear Change.”

A new fabric inspection technique for accurately detecting the most subtle of defects on patterned fabrics during high speed production has been developed by BTMA member Shelton Vision, of Leicester, UK.

The patent-pending system has been integrated into the company’s WebSpector platform and validated through factory trials on a purpose-built full scale in-house demonstration system with sophisticated fabric transport capabilities. As a result, a first system has already been ordered by a manufacturer of both plain and patterned fabrics, including camouflage, in Colombia. This follows the successful conclusion of a 21-month Innovate UK project in which techniques for the resolution of complex pattern deformations were developed by machine vision and computer scientists in the company, backed up by the machine vision and robotics department at Loughborough University.

Restrictions
Traditional methods for defect detection rely on human inspection which is ineffective, with detection rates under 65%, while the Shelton WebSpector machine vision system offers a sophisticated platform for automated defect detection of over 97%, but until now has been restricted to plain textiles.

While pattern matching and neural network approaches have previously been tried for patterned textiles, they have failed to provide a practical solution due to the extreme complexity associated with pattern matching on deformable substrates like textiles, as well as the time required to train a neural network for each pattern type.

Challenges
The challenge is that fabrics are not rigid and can be creased or stretched and are also subject to local distortion,” says Shelton Vision Managing Director and CEO Mark Shelton. “As a result, inspection without the technique we have developed, would lead to thousands of false positives. Our sophisticated pattern inspection software techniques ensure a clean image, allowing the detection of faults on fabrics running at speeds of up to a hundred metres a minute.”

The full system consists of:

• A camera and lighting system for optimum image capture at high speed and associated image processing hardware.
• Self-training software utilising statistical analysis to automate the system configuration for new textile products.
• An advanced suite of defect detection algorithms for the detection of all textile defect types.
• An AI-driven defect classification system which learns and automates defect naming in real time, as well as a real time defect grading capability based on client decision rules.
• A system for recording and retrieving complete roll map images for subsequent review and quality control.

The generation of textile roll maps with complete defect data allows for an optimised textile cut plan, improved downstream processing and quality assurance.

Japanese flat knitting machine manufacturer SHIMA SEIKI MFG., LTD. will exhibit at the Brazilian Textile Industry Fair (FEBRATEX 2022) this month. On display will be the cutting edge in computerized flat knitting technology, represented by the latest WHOLEGARMENT® machines and design system.

The flagship MACH2XS series features the company’s original SlideNeedle™ on four needle beds and spring-type sinker system supporting a wide range of high-quality WHOLEGARMENT® knitting in all needles. The versatile MACH2S is capable of both WHOLEGARMENT® knitting and shaping on a conventional V-bed. SVR123SP features a special loop presser bed and is capable of producing unique woven-like hybrid fabrics as well as technical textiles. At FEBRATEX it will demonstrate its capability by knitting shoe uppers. The SVR and N.SSR workhorse machines set the industry benchmark for shaping machines, with SVR202 featuring tandem knitting capability for flexible operation. The SFG and SFG-I glove knitting machines rounds out the comprehensive lineup.

Demonstrations will also be performed on SHIMA SEIKI’s SDS-ONE APEX4 3D design system that is at the core of the company’s “Total Knitting System” concept. With comprehensive support of all aspects throughout the knit supply chain, SDS-ONE APEX4 integrates knit production into one efficient workflow from yarn development, product planning and design to machine programming, production and even sales promotion. Especially effective is SDS-ONE APEX4’s capability to improve on the planning process with virtual sampling. Photo-realistic simulation capability minimizes the need for sample-making, effectively reducing time, material and cost from the prototyping process.

• 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.