From the Sector

Trützschler expanded their portfolio to become the first full-liner in the preparation of textile waste – from mechanical recycling to the spinning preparation of torn secondary fibers.

The TRUECYCLED solution is the result of their cooperation with the company Balkan Textile Machinery INC.CO. in Turkey, which they announced at the ITMA 2023 trade event in Milan. Since then, Trützschler has received many inquiries for recycling systems.

Success with a systems approach
Recycling systems face significant technological challenges. On average, torn fibers are much shorter than virgin fibers. The percentage share of short fibers in the fiber mass is much higher. Unopened yarn and fabric particles are also difficult to process. Not surprisingly, much academic and practical research is currently conducted to find solutions for these problems. Dr. Georg Stegschuster, a researcher specializing in textile recycling, believes a systems approach is needed. He is working at the Recycling atelier, a model factory for mechanical recycling in Augsburg, Germany, which is committed to delivering the latest technological insights for textile recycling. “A perfect fine-tuning between tearing and spinning preparation is key for obtaining the best possible quality results and avoiding unnecessary fiber shortening,” he says. “This can be achieved if you are in control of both processes – and have the necessary expertise for both processes too.”

Gentle but effective
In some cases, for example, it may be advantageous to have less aggressive settings in the tearing line. This can help avoid unnecessary fiber shortening. The remaining higher share of unopened fabric must then be handled in a high-performance spinning preparation line. This starts with the right blow room configuration for perfect opening, cleaning and blending. A card that is specially designed for recycling materials, such as the new TC 30Ri, can also enable gentle but effective treatment of fibers.

A shortened drafting process is also a must. The integrated draw frame IDF 3 can make this possible. The draft is high enough to provide excellent levelling of the numerous short fibers, but low enough to prevent floating fibers.

Full-liner in mechanical recycling and preparation of textile waste
Trützschler now offers a complete system covering the whole process, from cutting and tearing textile waste through to carding and drawing secondary fibers. Thanks to this holistic approach and Trützschler’s expertise for the whole process, manufacturers can avoid unnecessary fiber shortening.

Technological progress often results from close collaboration, and industries that rely on continual improvement stand to benefit from the return to in-person business. Cinte Techtextil China’s first edition since eased pandemic measures is set to reflect a 27.9% increase in exhibitor numbers, with a rejuvenated international contingent further supplemented by the return of the European Zone. Taking place from 19 – 21 September across 40,000 sqm at the Shanghai New International Expo Centre, the platform is expected to welcome buyers from across Asia, Europe, and beyond. Pre-registrations have doubled compared to the previous edition, and international buyers account for over 20% of the total.

The new zone, Marine Textile Zone, will be comprised of multiple Chinese green marine and nautical rope netting exhibitors, while also hosting the Technology Exchange Forum, and the awards ceremony of the Top 10 Suppliers in the China Rope Net Industry. Prominent exhibitors in this zone include Ropenet Group, Hunan Xinhai, and Zhejiang Four Brothers Rope.

Other domestic exhibitors, such as Shanghai Shenda Kebao New Materials, SIJIA New Material (Shanghai), Zhejiang Hailide New Material, and Zhejiang Jinda New Materials, will showcase products for applications in outdoor advertising, tents, boats, vehicles, environmental engineering, and much more.

Supplementing the fairground’s wide variety of domestic suppliers will be a much-increased showing of international exhibitors, with many to be found within hall E1’s European Zone. Several global industry leaders are featured in their categories below:

Nonwovens equipment

• Autefa Solutions, Germany: solutions provider for nonwovens lines and machines for carded-crosslapped needlepunching lines, spunlace lines and thermobonding lines.
• Dilo, Germany: in addition to offering general services, Dilo supplies opening and blending equipment, carding and airlay machines, and crosslapping and needling machines.
• Groz-Beckert, Germany: provider of industrial machine needles, precision parts and fine tools, as well as systems and services for the production and joining of textile fabrics.
• Reifenhäuser Reicofil, Germany: provider of innovative technologies and components for plastics extrusion, producing blown films, cast films, sheets as well as nonwovens.

Weaving equipment

• Itema, Italy: provider of advanced weaving machines, spare parts, and integrated services, specifically for rapier, air jet and projectile weft insertion technologies.
• Lindauer DORNIER, Germany: the company manufactures weaving machines, film stretching lines, and composite systems, also offering technical support and spare parts supply.
• Picanol, Belgium: producer and servicer of high-tech air jet and rapier weaving machines, with around 2,600 weaving mills utilising their systems worldwide.

Coating and lamination

• BRÜCKNER Textile Technologies, Germany: manufacturer of machines and lines for the coating and finishing of apparel fabric, technical textiles, nonwovens, glass fabrics and floor coverings.
• ROWA Lack, Germany: developer of high-quality materials and product solutions for the polymer industry, with applications including automotive, electrical engineering, construction, technical textiles, and medical technology.
• Stahl, the Netherlands: the Dutch company provides high quality coatings, dyes and process chemicals for leather, flexible coated substrates, textiles, films and foils, paper, and related products.

Fibre

• Monosuisse, Switzerland: with production sites in Switzerland, Poland, Romania, Mexico, and Germany, Monosuisse manufactures various precise, high-quality polymer monofilaments from 19µm to 3.00 mm in diameter.
• Perlon, Germany: specialised in the manufacture of synthetic filaments in diverse application areas, including paper machine clothing, dental care, and advanced technical textiles for agriculture, 3D printing, sports and leisure, home, and more.

Meanwhile, first-time exhibitors include Rökona (Germany), showcasing RE:SPACE, their range of recycled technical textiles; Testex AG (Switzerland), the official OEKO-TEX® representative in multiple countries including China; Hohenstein (Germany), the renowned testing laboratory and research institute; and zwissTEX (Germany), the knitted fabrics and lamination specialists. In addition, the returning Taiwan Pavilion is set to feature the debut of Shinih Enterprise Co Ltd (Taiwan China).

Beyond the innovation displayed at the booths, the fair’s programme is set to welcome global experts from various technical textile and nonwoven sub-sectors to offer specific insights and unveil innovations. Highlighted events include:

The 11th China International Nonwovens Conference
14 sessions cover topics such as the quality control of medical supplies; green development in technology and applications in the nonwovens industry; and the development and application of flashspun nonwovens in China.

Marine textiles and rope netting events
Events specific to this zone include the Top 10 Suppliers in the China Rope Net Industry; Conference on Textile Applications for Marine Engineering and Fisheries; and the China Nonwovens & Industrial Textiles Association (CNITA) Rope Net Branch Council Meeting

"Nonwovens, Creating a Better Life” Innovation Showcase
Product display area showcasing around 100 nonwovens products with applications in five areas: medical and health, quality of life, human habitat, sustainable development, and innovative design.

Advanced Technical Textiles Industry Chain Synergistic Innovation Development Forum
Includes presentations from multiple key players in the technical textile industry, including Mr Steven Liu, Commercial Manager of Polymer Additives Business of Sanitized (China) Ltd.

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”.

Global energy consumption reached a record high in 2019, following a 40-year trend for rapidly increasing energy demand that was only halted by the Coronavirus pandemic. It’s estimated that more than 80 % of this energy is still generated from fossil fuels that produce CO2 emissions and contribute to climate change. Renewable energy offers a solution to this problem, but saving energy whenever possible is an even more effective approach. That are the motives for Trützschler to develop the intelligent card TC 19i, which sets a new benchmark for energy-efficient carding.

The intelligent Trützschler card TC 19i features the unique T-GO gap optimizer, which continuously and automatically monitors and adjusts the carding gap to an ideal position during production. Innovative drive- and air technology further reduce energy consumption of the TC 19i.

The most energy-intensive elements in a carding machine are the drive, the dust suction process and the compressed air system. Permanent suction is needed to remove dust and cotton waste in key places. Smart optimization of these areas has made the intelligent card TC 19i a benchmark for energy efficiency in carding because it uses less electricity, lower suction pressure and less compressed air than other machines, while providing the highest production rates currently available on the market.

In a head-to-head comparison between the TC 19i and a high-performance card from a competitor, the TC 19i consumed at least 10 % less energy per kilogram of material produced when manufacturing rotor yarn from a cotton and cotton waste mix. The compared energy values included electric power consumption and energy required for suction and compressed air and were measured in both cards at the same production of 180 kg/h. A 10 % reduction in energy per kilogram of sliver produced, as proven here by TC 19i, can have a significant impact on a spinning mill’s profitability; annual savings worth a five-digit sum are frequently possible, depending on factors such as the output of the mill. The customer trial also showed TC 19i’s excellent reliability at the customer’s usual production rate of 180 kg/h, and even demonstrated stable performance at 300 kg/h in the same application. Because the TC 19i with T-GO gap optimizer realizes maximum production rates at no compromise in quality, manufacturers can reduce their energy demand and investment costs drastically: Less machines are needed to achieve the desired output, and energy consumption per production is reduced.

This improvement was made possible by a long and sometimes challenging innovation process involving mathematical models of air flows, as well as flow simulations and prototypes. By combining the final flowoptimized parts in the TC 19i, Trützschler’s experts have developed a card that operates with suction pressure of just -740 Pa and with an air requirement of only 4200 m³/h. This translates into 40 % less energy demand for air technology compared to the latest high-performance competitor model.

Indian Tufropes is partnering with Truetzschler Nonwovens and Voith to install its unique pentamerous technology. The company’s first nonwovens production line will be capable to produce 5 different eco-friendly, hydroentangled products.

Truetzschler Nonwovens and Voith are thrilled to be the technology partner for Tufropes’ (patent pending) unique nonwoven line based on pentamerous technology. The new installation relies heavily on Truetzschler/Voith core components for wet-laying, carding and hydroentangling. Proprietary refinements will allow Tufropes to produce any possible hydroentangled nonwoven material, including bio-degradable, natural fibre, eco-friendly high-performance nonwovens. Globally this would be a first industrial-scale pentamerous technology-based nonwoven project. Based in Gujarat, India, the line is expected to be commissioned next year.