From the Sector

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.

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.

• Free trade deal boosts export potential

The time is right for Swiss textile machinery companies to grow their export business with Indonesia – one of the world’s top 10 textile producers. A free trade agreement between the two countries came into force in 2021, and market analyses show that there is scope for a significant increase in business in textile and textile machinery sectors.

This was the background to a successful symposium in the Indonesian capital Jakarta last month when Swiss Textile Machinery Association members presented their products and innovations to an invited audience of 200 delegates from Indonesian textile companies.

The symposium audience was welcomed by Philippe Strub, of the Swiss Embassy in Indonesia; Ignatius Warsito, from the Indonesia Ministry of Industry’s Chemical, Pharmaceutical and Textile Industry branch; Anne Patricia Sutanto, of the Indonesian Textile Association (API); and Ernesto Maurer, President of the Swiss Textile Machinery Association.

Swiss companies taking part were: Stäubli, Zeta Datatec, Loepfe, Saurer, Benninger, Rieter, Bräcker, Jakob Müller, Maag, Uster and SERV.

The presentations were followed by panel discussions with speakers, and there were also networking opportunities at the companies’ exhibition tables.

Also taking part in a panel at the event was Testex, the independent Swiss organisation which provides testing, certification, OEKO-TEX® and other labels for the textile industry. Discussion focused on the relevance of innovation in textile technology to sustainability and ‘saving the planet.’  

Recent years have seen an acceleration in trade relations between Switzerland and Indonesia, which in 2008 was classed as one of eight priority countries for economic development cooperation by SECO, the Swiss Secretariat for Economic Affairs, with a joint economic and trade commission established the following year.
Collaboration was heightened further in 2018 with a Comprehensive Economic Partnership Agreement (CEPA) for Indonesia with Switzerland and the other EFTA countries. This more extensive form of free trade agreement was accepted after a popular referendum, and ultimately came into force in November 2021.

Trading between the two countries is supported by SERV, the Swiss export risk insurance organisation. This insures export goods against political and commercial risks and facilitates credit.

Cornelia Buchwalder, Secretary General of the Swiss Textile Machinery Association, said the Indonesia Symposium was ideally-timed, right after the CEPA came into effect: “With the free trade agreement in place, there is even greater potential for the development of trade between our countries,” she said.

“Business in textile and textile machinery is actually below the relative market shares for the sectors, so this stronger cooperation is probably overdue. It was a successful symposium, with enthusiastic participation from Indonesian textile companies, so we are optimistic about future export prospects for Swiss textile machinery.”

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.

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.

International technology group ANDRITZ has received an order from Yanpai Filtration Technology Co., Ltd. (YANPAI®), China, to supply batt forming equipment with an aXcess card and crosslapper for a needlepunch line producing PTFE filtration products at its site in Tiantai. The PTFE felts will be used as smoke filters in waste incineration plants. Start-up of the line is planned for the second half of 2022.

Yanpai is one of the leading Chinese producers of nonwoven filters for dust and air treatment and of woven filter fabrics used in solid/liquid separation. Established in 1990, Yanpai was at the forefront of development work on new industrial filtration fabrics. Today, Yanpai is a company with facilities in China and the USA.

Zhoukou Xuwang Co., Ltd. has successfully started up two new ANDRITZ neXline spunlace lines at its facilities based in Henan province, China. Combining equipment from the aXcess and eXcelle ranges, both lines are dedicated to the production of spunlace fabrics of 30 to 120 gsm made out of viscose and polyester fibers. The ANDRITZ design will allow Zhoukou Xuwang to serve the premium product market, especially for premium hygiene and technical wipes, in China.

The ANDRITZ scope of supply for the two lines included:

• aXcess opening and blending systems
• high-performance eXcelle card and crosslapper
• robust aXcess CA25 carding machine
• efficient Jetlace Avantage hydroentanglement unit

This configuration will enable Zhoukou Xuwang to manufacture high-quality products while reducing raw materials consumption. These goals are further enabled by the installation of an ANDRITZ Asselin-Thibeau crosslapper PRO35-140, generating a uniform profile over the entire web width.

In spite of the difficult circumstances and supply chain disruptions related to the Covid crisis, both spunlace lines were installed smoothly and on time. They quickly went into commercial production, with a line speed of up to 100 m/min and high-performance MD/CD ratio.

International textile producers meet again in Istanbul, Turkey, from June 14 – 18, 2022 on the occasion of the ITM + Hightex Exhibition. In Hall 9 (Hightex) the exhibitors will present the complete industry value chain from nonwovens raw materials, production machines and accessories to the endproduct. The related industries covered include hygiene, filtration, fabrics and apparel, medical, automotive, wipes, home furnishings and upholstery. DiloGroup offers tailor-made production systems from one supplier and will inform about its portfolio and the latest equipment developments from fibre opening to the finished felt.

DiloGroup will inform about complete lines as well as high speed needlelooms for spunbonds. A new, simplified elliptical needle beam drive makes Hyperpunch technology also attractive for standard application. Hyperpunch HαV allows a more uniform stitch distribution in the preneedling process especially in combination with the new needle pattern 6000X. In a complete needling line this felt homogenization process can be improved further. The new needle pattern 8000X is a milestone in the needle pattern development process and results in endproduct surfaces with low markings over a wide range of advances/stroke.

Another strong pillar of the sales program over decades has been fibre preparation and high speed webforming equipment for other nonwoven technologies. The further development of the high-speed layering principle “Hyperlayer” made progress for better CD strength through a combination of inline cards and crossline card with crosslapper. Particularly, carding machines in a working width above 3.5 m up to 5.1 m have been supplied by DiloSpinnbau as complete high speed carding systems, comprising two or even three cards in a line to directly feed the hydroentangling units of various suppliers. Together with DiloTemafa not only have high throughput rates been achieved in the fibre preparation section of the line but also dedusting filtering and air-conditioning systems have been successfully engineered and integrated.

Together with Sicam, Dilo has combined know-how for hydroentangling technology and therefore can provide complete lines as general contractor including equipment for cutting, winding and packaging.

Another interesting machine is the 3D-Lofter, first presented during ITMA 2019 in Barcelona, which offers a wider range of nonwovens applications by exploring the third dimension. A series of single web forming units which work according to the aerodynamic web forming principle deliver defined fibre masses in varied patterns on a base needlefelt. A stress oriented production of technical formed parts resulting in fibre savings or patterned DI-LOUR or DI-LOOP felts with or without repeat are two examples for this technology which explores new application areas for needlefelts.
The 3D-Lofter technology may also be used “inverted” as “IsoFeed” for filling up bad spots in web mats and thus achieves a better homogeneity of spunlace or airlay products.

The DiloLine 4.0 concept offer I4.0 modules which not only support the user but also facilitate quality control and maintenance by a maximum data transparency in production and control of operation. The Dilo solutions “Smart Start” for a fully automatic start of the production line or “DI-LOWATT” for energy savings are accompanied by Siemens solutions which can be selected via App or Data Cloud “MindSphere”.

• Sustainable infrastructure solutions, road safety and health protection

At this year’s Techtextil, Oerlikon Polymer Processing Solutions will be presenting the trade audience with new applications, special processes and sustainable solutions focusing on the production of industrial textiles. Among other things, the company will be showcasing new technology for charging nonwovens that sets new standards with regards to quality and efficiency. Between June 21 and 24, the discussions will be concentrating on airbags, seat belts, tire cord, geotextiles, filter nonwovens and their diverse applications.

More polyester for airbags
Airbags have become an integral part of our everyday automotive lives. The yarns used in them are made predominantly from polyamide. As a result of increasingly diverse airbag applications and also the increasing size of the systems used, polyester is today used as well, depending on the application requirements and cost-benefit considerations. Against this background, the Oerlikon Barmag technologies make an invaluable contribution. In addition to high productivity and low energy consumption, they particularly excel in terms of their stable production processes. Furthermore, they comply with every high quality standard for airbags, which – as in the case of virtually all other textile products used in vehicle construction – must provide the highest level of safety for vehicle occupants. And all this without any loss of function in any climate and anywhere in the world for the lifetime of the vehicle.

Buckle up!
Seat belts play a decisive role in protecting vehicle occupants. They have to withstand tensile forces in excess of three tons and simultaneously stretch in a controlled manner in emergencies in order to reduce the load in the event of impact. A seat belt comprises approximately 300 filament yarns, whose individual, high-tenacity yarn threads are spun from around 100 individual filaments.

Invisible, but essential – road reinforcement using geotextiles
But it not just inside vehicles, but also under them, that industrial yarns reveal their strengths. Low stretch, ultra-high tenacity, high rigidity – industrial yarns offer outstanding properties for the demanding tasks carried out by geotextiles; for instance, as geogrids in the base course system under asphalt. Normally, geotextiles have extremely high yarn titers of up to 24,000 denier. Oerlikon Barmag system concepts simultaneously manufacture three filament yarns of 6,000 denier each. Due to the high spinning titers, fewer yarns can be plied together to the required geo-yarn titer in a more cost- and energy-efficient manner.

hycuTEC – technological quantum leap for filter media
In the case of its hycuTEC hydro-charging solution, Oerlikon Neumag offers a new technology for charging nonwovens that increases filter efficiency to more than 99.99%. For meltblown producers, this means material savings of 30% with significantly superior filter performance. For end users, the consequence is noticeably improved comfort resulting from significantly reduced breathing resistance. With its considerably lower water and energy consumption, this new development is also a future-proof, sustainable technology.

New high-tech Staple Fiber Technology Center
Extending to around 2,100 m2, Oerlikon Neumag in Neumünster is home to one of the world’s largest staple fiber technology centers. As of now, these state-of-the-art staple fiber technologies are also available for customer-specific trials.

The focus during the planning and the design of the Technology Center was on optimizing components and processes. Here, special attention was paid to ensuring the process and production parameters in the Technology Center system could be simply and reliably transferred to production systems. Here, the fiber tape processing line is modular in design. All components can be combined with each other as required. And comprehensive set-up options supply detailed findings for the respective process for various fiber products.

The Technology Center is also equipped with two spinning positions for mono- and bi-component processes. The same round spin packs are used for both processes, characterized by excellent fiber quality and properties and meanwhile very successfully deployed in all Oerlikon Neumag production systems. Furthermore, the spinning plant is complemented by automation solutions such as spin pack scraper robots, for example.

ITM 2022: Rieter Further Improves Attractiveness of Ring and Compact-Spinning System

• Autoconer X6 is the key machine for highest efficiency
• Roving frame F 40 sets industry standard at 90 seconds only for doffing
• New top and bottom aprons NO-79201 offer greater durability
• i-Bearing enables 24/7 visibility for fast and smart decisions
• Berkolizer pro introduces easily adjustable UV treatment as industry-first
• European roll out of precision winder NEO-YW to launch in Turkey

Rieter is presenting the Autoconer X6 at the upcoming ITM 2022 in Istanbul (Turkey), taking place from June 14 to June 18, 2022, which further improves the attractiveness of the company’s ring and compact-spinning offering by completing the system. In addition, Rieter is showing the roving frame F 40 which doffs at 90 seconds only. SSM’s NEO-YW precision winder is launching into the European market while three key innovations in components are being introduced.

Opportunities and Challenges to the Spinning Industry

2021 was an unprecedented year for the global spinning industry. Driven by the market recovery after the pandemic and the regional shift of the industry, customers invested in new spinning systems at levels never experienced before. And despite the current uncertainties, customers continue to invest.

As market and technology leader, Rieter succeeded in this environment in posting a record order intake for 2021. This is clear evidence of the high level of trust customers have in Rieter. Dr. Norbert Klapper, CEO of Rieter, says: “Systems, machines, components, parts and services from Rieter have ensured competitiveness and success for customers over many years in the past and will continue to do so in the future.”

Dr. Klapper also comments on the challenges that lie ahead for the industry as it takes advantage of market opportunities: “The pandemic is not over yet, and business is exposed to dramatic cost increases as well as shortages in material supplies and logistics. In difficult times, it is important to work together even more closely than under normal circumstances. It’s all about true partnership and trust – the basis of Rieter’s business for 226 years.”