From the Sector

At this year’s Techtextil India, the Polymer Processing Solutions Division of the Swiss Oerlikon group will be presenting the trade audience with new applications, special processes and sustainable solutions focusing on the production of industrial textiles. Between September 9 and 12, the discussions at Jio World Convention Centre (JWCC), Mumbai, will be concentrating on airbags, seat belts, tire cord, geotextiles, filter nonwovens and their diverse applications.

More polyester for airbags
The yarns used in airbags 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 technol-ogies 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 - without any loss of function in any climate and for the lifetime of the vehicle

Buckle up!
Seat belts 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. “With our unique, patented Single Filament Layer Technology, we offer a sophisticated and simultaneously gentle high-tenacity (HT) yarn process for manufacturing these lifesavers and other applications made from industrial yarn”, explains André Wissenberg, Head of Marketing.

Road reinforcement using geotextiles
Low stretch, ultra-high tenacity, high rigidity – industrial yarns offer outstanding properties for the demand-ing 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 –  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.

SHIMA SEIKI MFG., LTD. of Wakayama, Japan, together with its Korean subsidiary SHIMA SEIKI KOREA INC., will participate in the Preview in SEOUL exhibition in Seoul, Republic of Korea this month (23rd - 25th of August 2023).

SHIMA SEIKI will show its SWG061N2 compact WHOLEGARMENT® knitting machine which can produce a wide range of WHOLEGARMENT® items in their entirety without the need for linking or sewing. The SWG-N2 series “Mini” range is suited to the production of small knit items and accessories such as gloves, socks, hats and scarves as well as cozies, shoe uppers, bags, card cases, glasses cases, smartphone covers and other personal items. The N.SVR093SP is a conventional shaped knitting machine featuring a loop presser bed that yields novel fabrics with special inlay patterns that are produced by inserting yarn into knit fabric in a weave fashion, offering new and exciting possibilities in hybrid knit-weave textiles. Both machines will be shown knitting such items as bags and sporting goods to demonstrate the capability of current knitting technology for producing non-apparel items.

SDS®-ONE APEX design system and APEXFiz® subscription-based design software will also be on display. Both support the creative side of fashion from planning and design to colorway evaluation, realistic fabric simulation and 3D virtual sampling. Virtual samples are a digitized version of sample making that are accurate enough to be used effectively as prototypes, replacing physical sampling and consequently reducing time, cost and material that otherwise go to waste. Virtual samples can furthermore be used in e-commerce to gauge consumer demand before production begins. Feeding that information back to production and combined with on-demand WHOLEGARMENT® knitting technology, production can be adjusted to optimize inventory and minimize leftover waste. APEXFiz® thereby helps to realize sustainability and digitally transform the fashion supply chain.

Flat knitting solutions provider SHIMA SEIKI MFG., LTD. of Wakayama, Japan has launched its “SHIMA HelpCenter” customer support site. SHIMA HelpCenter integrates Help, FAQ, Operation Manual, and Glossary functions for SHIMA SEIKI products, and supports cross-content keyword search to improve user convenience. In addition, video content provides easy-to-understand explanations of various product functions, as smart solutions to questions and problems that may arise during product use. With support for smartphones and tablets, our product users can use the service anytime, anywhere. Operation manuals that were previously provided in printed form are being converted to the online version in order to provide services more efficiently in an environmentally friendly, sustainable, and convenient manner.

SHIMA online is a web service platform which features “APEXFiz®” design software subscription service, “yarnbank®” digital yarn sourcing service, “SHIMA Datamall™” digital content service, “SHIMANAVI®” e-learning system and “SHIMA KnitManager™” knit production management software, all of which are designed to improve operational efficiency and create attractive and sustainable products. With a SHIMA online account, both SHIMA HelpCenter and SHIMA Datamall can be accessed using the same ID.

ITMA 2023 was a successful platform for the flat knitting machine manufacturer STOLL to present its latest new developments. The business unit of the KARL MAYER GROUP will be following up this fair on 3 July with the launch of a further innovation package. With the solutions contained in this package, STOLL will be offering its customers additional added value when using their flat knitting machines - in line with the concept of bundling innovations.

The new features include an optimised central lubrication system that reduces both maintenance effort and oil consumption, this as standard from July 2023 for all models of the CMS and ADF series produced in Reutlingen.
Compared to the previous optional variant, it ensures more efficient and comprehensive lubrication. All needle bed elements, from the holding-down jack to the coupling part and intermediate slider to the selection jack, are now supplied with oil. The machine itself recognises whether lubrication is required. Independently of this, the lubrication intensity and oil distribution can be adapted to the individual machine conditions by setting various parameters, if required. To ensure that the required amount of lubricant is reliably supplied, a message is sent if the level is too low.

In addition, a new oil drain container as standard equipment for all CMS and ADF models catches used oil from the needle bed under the machine. This prevents soiling of floors or knitted fabrics. The emptying of the container can be efficiently managed by an adjustable reminder function. The neat and at the same time sustainable solution does not require cleaning agents or hoovers and offers the possibility to reuse the oil after cleaning through special filters, if necessary.

Users of CMS and ADF belt take-down machines can benefit from optimisations around the belt take-down. Thanks to the new STOLL innovation package, this can be turned forwards and backwards by means of a switch as standard in order to easily eliminate fabric wraps and thus reduce maintenance times. In addition, a mirror, which is also fitted as standard, ensures a simple visual check of the belt take-down.

Another solution of the STOLL innovation package from July 2023 includes new cams that enable split-stitch implementation without cam box modification. This reduces manual effort and thus conversion times and costs. The feature is standard on all fine gauges ADF and CMS machines.

For the W machines from STOLL, there is now a further inlay yarn carrier, the Qt, in addition to the previous Qw yarn carrier. The extension means that the number of inlay yarn carriers used in a system can be increased from the previous one to three. No additional system is required for the weft yarn, and the process steps weft yarn insertion and knitting take place in the same system.

SHIMA SEIKI ITALIA S.p.A., Italian subsidiary of leading Japanese computerized knitting solutions provider SHIMA SEIKI MFG., LTD., will exhibit at the 93rd edition of the Pitti Immagine Filati exhibition in Florence, Italy. It will exhibit as part of the new CustomEasy section, which explores the various aspects of customization in the presence of textile machinery, including a multi-faceted lineup of SHIMA SEIKI WHOLEGARMENT® knitting machines.

The WHOLEGARMENT® knitting machine SWG-XR® features 4 needle beds for all-needle knitting of high quality WHOLEGARMENT® products using the company's original SlideNeedle™. SWG-XR® features a re-designed sinker system and a compact, light-weight carriage featuring 4 systems as well as auto yarn carriers. All contribute to increased productivity of more than 25% over the previous MACH2®XS machine, as well as increased product range using a wider variety of yarn for supporting knits for all seasons, and higher quality for knitting beautiful fabrics and silhouettes; even items that were impossible to knit with the MACH2® series, including punch-lace patterns, variable stitch knitting and intarsia knitting. Setting new standards for the next generation of waste-free, sustainable WHOLEGARMENT® knitting, SWG-XR® at Pitti Filati will be shown in 18L.

Affectionately referred to as “SWG®-Mini,” SHIMA SEIKI's compact line of WHOLEGARMENT® machines allows customers to take advantage of the same short lead times and versatile production as larger WHOLEGARMENT® knitting machines, but with minimal investment. SWG®091N2 with its 36-inch (90cm) knitting width is especially suited to knitting a wide variety of items including accessory items as well as childrenswear and smaller size garments, all without the need for linking or sewing afterward. At Pitti Filati SWG®091N2 will be shown in 5 gauge.

A new proposal in WHOLEGARMENT® knitting will also be shown in the form of the N.SVR®183 WHOLEGARMENT® knitting machine. SHIMA SEIKI's global standard in shaped knitting, the N.SVR® series now features a model for producing WHOLEGARMENT® knitwear using every other needle in fine gauge. N.SVR®183 is equipped with the R2CARRIAGE® system and a compact, lightweight carriage for even higher productivity. Shown in 21G at Pitti Filati 93, N.SVR®183 is the ideal machine for flexible, entry-level WHOLEGARMENT® production, with the versatility to respond to fluctuating market demand.

APEXFiz® subscription-based design software supports the creative side of fashion from planning and design to colorway evaluation, realistic fabric simulation and 3D virtual sampling. Virtual samples are a digitized version of sample making that are accurate enough to be used effectively as prototypes. By replacing physical samples, virtual samples reduce time, cost and material that otherwise go to waste. APEXFiz® thereby helps to realize sustainability and digitally transform the fashion supply chain.

Continuing from past editions of Pitti Filati are knit samples produced in collaboration with Italian designer Vittorio Branchizio, as well as samples from SHIMA SEIKI headquarters for assessing the potential of SHIMA SEIKI knitting machines.

With combined regional, global, and industry specific expertise, the Vietnam International Trade Fair for Apparel, Textiles and Textile Technologies (VIATT) will make its debut from 28 February – 1 March 2024. Following the signing of a memorandum of understanding (MOU) in late March, Messe Frankfurt (HK) Ltd and the Vietnam Trade Promotion Agency (VIETRADE) announced the new international fair for the entire textile value chain. The three-day platform will be staged at the Saigon Exhibition and Convention Center (SECC), Ho Chi Minh City.

Commenting on the new event, Ms Wendy Wen, Managing Director of Messe Frankfurt (HK) Ltd, said: “With Intertextile Apparel in Shanghai a prime example, our Texpertise Network provides the ideal global framework from which to launch this diverse, comprehensive platform for the integrated textile supply chain. VIATT itself will capture the essence of Texpertise in one platform – a diverse, one-stop sourcing event for buyers across all categories, from garments, fabrics, yarns and fibres, to textile machinery, technical textiles and nonwovens, and everything in between.”

Discussing the event’s potential, Mr Le Hoang Tai, Deputy Director General of the Vietnam Trade Promotion Agency (VIETRADE), said: “Vietnam is one of the world’s leading textile producers and exporters, and going from strength to strength as one of Southeast Asia’s manufacturing hubs. Our establishment has many years of experience organising trade fairs throughout Vietnam, and together with Messe Frankfurt we are excited to help international fairgoers unlock the potential of the country’s fast-growing textile market. In addition, Ho Chi Minh City’s accessibility, and Vietnam’s proximity to other leading textile-producing nations such as Bangladesh, Cambodia, China and India, make it the logical venue to host an event of this nature.”

Many international textile manufacturers have been expanding operations into Vietnam, augmenting an already strong domestic industry. According to the Vietnam Textile and Apparel Association (VITAS), the country’s textile and garment industry achieved staggering annual growth of 20 – 26% from 2018 – 2022. Participation in international trade agreements such as the Regional Comprehensive Economic Partnership (RCEP), the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), the EU–Vietnam Free Trade Agreement (EVFTA), and the Indo-Pacific Economic Framework for Prosperity (IPEF)[2], bodes well for future growth.

As one of the world’s biggest importers of textile machinery, and a consistent importer of fabrics, yarns and fibres, garment production is the cornerstone of Vietnam’s industry. The country utilises cotton and functional materials to produce casualwear, childrenswear, swimwear, workwear, and much more, with sportswear an especially fast-growing category, and high-utility garments expected to achieve high exports.

By linking textile players from across Asia, Europe and beyond with this market, VIATT 2024 is willing to play an important part in shaping the future of Vietnam’s industry. Next year’s fair will host an extensive mix of international and domestic exhibitors covering multiple textile sub-sectors, including garments, apparel fabrics and accessories, yarns and fibres, digital printing, home textiles, technical textiles and nonwovens, textile processing, textile machinery, and more.

Exhibitors and buyers can utilise the fair’s global business matchmaking service, where connections are made based on the specific needs of each party. In addition to the fair’s main function as an international trading platform, its fringe programme will facilitate participants’ networking with industry leaders and offer diverse market insights via various seminars, forums, and panel discussions.

The Vietnam International Trade Fair for Apparel, Textiles and Textile Technologies (VIATT) is organised by Messe Frankfurt (HK) Ltd and the Vietnam Trade Promotion Agency (VIETRADE). Covering the entire textile industry value chain, the inaugural edition will be held from 28 February – 1 March 2024 at the Saigon Exhibition and Convention Center (SECC), Ho Chi Minh City.

With regard to current and imminent requirements to strengthen and promote the recycling of garment waste in order to safe valuable textile fibre in the European but also worldwide textile economy DiloGroup announces the start of a close cooperation between Dilo, Germany and the Italian companies Dell’Orco & Villani and TechnoPlants. This cooperation forms a group of expertise to supply complete projects in the area of textile recycling.

Dell’Orco & Villani is a long term highly experienced and innovative specialist in the field of tearing equipment to recycle textile garment clippings. This technology maintains as much as possible the staple length of reopened fibre from yarn in knitted and woven textiles. This special tearing process avoids the downgrading and shortening of the staple.

TechnoPlants is a highly experienced specialist in the field of aerodynamic web forming and through air technology with particular emphasis on reclaimed fibre for various applications as for example in acoustic and thermal insulation, car parts, upholstery and bedding.

DiloGroup with DiloSystems GmbH is a general contractor who is specialized in the area of fibre preparation, carding, cross-lapping and needling who will act as a turnkey general provider of complete projects including Dell’Orco & Villani components to reclaim wasted fibre as well as TechnoPlants components when aerodynamic web forming is included or when carding, cross-lapping is selected together with through-air ovens and end-of-line equipment including packaging from TechnoPlants.

The expertise of the three companies together is a source for the complete know-how in this large area of applications to reuse fibre from textile waste in new nonwoven material.

With the beginning of upcoming ITMA 23, more details of the organizational structure of this cooperation among the three companies will be released and project engineering will be started.

From April 25^th to 27^th, 2023, the Institute of Textile Machinery and High Performance Material Technology (ITM) of TU Dresden will be exhibiting at the pavilion SAXONY! at JEC World 2023.

The ITM will provide a comprehensive overview of its current research in the field of machine and product development along the entire textile process chain.

The upcoming JEC 2023 exhibition will highlight innovative Customised Connective Cores (CCC), which are custom-made core-insert structures additively manufactured using cellular metal and a form-fit integrated insert. These CCCs can be seamless integrated either as patches or as full-surface core material into lightweight panels, offering significantly improved load-bearing behavior (especially 4 times the load-bearing capacity and fail-safe behavior) compared to existing technologies. This breakthrough opens up new possibilities for fastening lightweight panels.

Another highlight at the exhibition is the repair process for fibre-reinforced composites (FRP) developed at the ITM. Instead of mechanically grinding the damaged area, the matrix in the repair area is locally dissolved using a UV-rays-induced depolymerisation process. Damaged fibres can thus be replaced by a customized repair patch. Free yarn ends on the textile repair patches are spliced with the UV-exposed yarn ends in the repair area using an adapted splicing process. In this way, a very clean, simplified and mechanically improved repair area can be achieved compared to the state of the art.

The diverse possibilities offered by the structure and process simulation of textile high-performance materials and textile manufacturing processes will also be presented. By means of multi-scale modelling and simulation, a profound understanding of materials and processes is achieved at the ITM. Finite element models on the micro, meso and macro scale have been developed and validated for this purpose. Examples from current ITM research projects demonstrate the various possibilities and areas of application of modern simulation methods in the field of textile technology.

Moreover, an innovative process for the integral manufacturing of 3D rib-stiffened preforms with complexly arranged stiffeners in 0°, 90° and ± 45° orientation was developed and successfully implemented at the ITM. Due to the process-integrated structure fixation and the continuous fibre reinforcement between shell and rib structure, the 3D preforms are perfectly suited for the production of highly load-bearing FRP components with increased bending stiffness, which will be exhibited at JEC. Hence, the lightweight construction potential of high-performance fibres can be fully exploited.

A successfully established development are partially flowable 2D textile reinforcement fabrics that are continuously manufactured in one single process step. For this purpose, the entire process chain was developed at the ITM, which allows a cost-effective and high-volume production of load-bearing thermoplastic 3D FRP components with continuous fibre reinforcement between shell and stiffeners.

At JEC 2023, the ITM will also present a partially embedded textile latice girder as reinforcement for carbon concrete applications, which was produced by means of an innovative textile manufacturing process based on the multiaxial warp knitting technology. Through the development of a customized warp insertion, manipulation and take-off system as well as appropriate shaping methods, it is now possible to produce tailored textile semi-finished products, e.g. for use in wall and ceiling panels. These textile latice girders represent a resource-saving alternative to conventional steel girders due to the reduced among of concrete required and the additional cavity for media and cable guidance.

The integration of textile actuators and sensors in FRP provides structures with additional functionalities. The research and application of such interactive FRP with different matrix materials (e.g. with thermoset, elastomer or concrete matrix systems) for structural health monitoring or adaptive systems is one of the key research areas of the ITM.

Moreover, the development and implementation of innovative yarn constructions based on recycled high-performance fibres (e.g. rCF, rGF, rAR) for sustainable FRPs is successfully promoted at ITM. By use of a special carding machine, recycled fibres are opened up, separated and joined to form a wide, uniform ribbon. Subsequently, innovative hybrid yarn constructions made of evenly mixed recycled high-performance and thermoplastic fibres with variable fibre volume fractions can be manufactured by means of various spinning technologies. Selected yarn constructions and components will be showcased at JEC.

Flat knitting solutions provider SHIMA SEIKI MFG., LTD. of Wakayama, Japan, together with its Brazilian representative BRASTEMA TECNOLOGIA TEXTIL LTDA., will participate in the FIMEC 2023 46th International Fair of Leather, Chemicals, Components, Machinery and Equipment for Footwear and Tanneries in Rio Grande do Sul, Brazil next month.

Working off the recent trend in knitted shoe uppers in the athletic footwear market, SHIMA SEIKI proposes knitted fabrics to the general footwear market as an alternative to leather. To that end SHIMA SEIKI will be showcasing the latest applications of computerized flat knitting technology to demonstrate its contributions in this field.

As pioneer of WHOLEGARMENT® knitting technology whereby the knitted product can be produced in one entire piece on the machine without linking or sewing, the company is showing the MACH2XS WHOLEGARMENT® knitting machine for the first time at FIMEC. MACH2XS features 4 needle beds and SHIMA SEIKI's original SlideNeedle™, capable of producing high-quality fine gauge WHOLEGARMENT® products in all needles. Proposals include WHOLEGARMENT® sportswear as well as seam-free shoe uppers. For conventional shaped knitting of shoe uppers, the SVR123SP machine features a loop presser bed that permits inlay technique for producing hybrid fabrics with both knit and weave characteristics, suited to shoe upper applications that require form-fitting function, comfort, flexibility, breathability as well as strength and stiffness. SVR123SP furthermore features i-Plating inverse-plating capability for increased patterning capability, including the production of jacquard-like patterns in light-weight plain jersey stitch. Also on show will be the compact SVR093 machine with a short knitting width intended for knitting shoe uppers. Both SVR machines feature such SHIMA SEIKI innovations as DSCS® Digital Stitch Control System, spring-type moveable sinker system, stitch presser, yarn gripper and cutter, and takedown comb. Made-in-Japan quality, reliability, productivity, user-friendliness and cost-performance all combine to satisfy the high expectations of the world's shoe industry.

SHIMA SEIKI’s SDS®-ONE APEX4 3D design system will also be available for demonstrations in design and simulation suited to shoe production. Of particular interest is 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 and cost normally associated with producing actual samples for each variation. The sustainability factor is also undeniable.

• Longer parking times for greater efficiency

Since 2018, Oerlikon Barmag has been offering the market’s only currently available concept for high-end home textile applications using the POY and DTY process. The spinning concept with the WINGS HD winding unit in conjunction with an automatic eAFK Big V Multispindle texturing machine manufactures high-titer yarns with maximum machine efficiency.
 
“We have correspondingly modified WINGS HD in order to once again better align the increased requirements of these special yarns to the spinning process and make everyday production even simpler for our customers”, comments Stephan Faulstich, POY Process Technology Manager. The parking times are extremely short when winding high titers. We have increased the parking times by up to three times in the case of the new WINGS HD models. To this end, the parking time for a 300d/384f yarn, for example, has been increased from a standard 6.5 min. to 15.7 min. – and, in the case of a 400d/192f yarn, from 4.3 min. to 10.3 min. This makes the doffing process more even, hence increasing doffing reliability.

At the same time, the draw unit now has a more flexible design, meaning that two-godet operation is also possible in the case of products with low overall titers. This has a positive impact on the winding unit’s energy consumption.

12 POY packages of up to 600d/576f (final) are produced in the spinning process using WINGS HD 1800. This is made possible as a result of an additional godet, which ensures that the high yarn tensions developing in the process are reduced to the yarn tensions common in the case of the winding process to date. At the same time, the newly-developed suction unit with the accompanying yarn cut-ting device (yarn collecting system) ensures – both during string-up and in the event of a yarn break – reliable handling of the yarn with an overall titer of 7,200 den (final).

Whereas DTY yarns up to 1,200 den and with up to 784 filaments have in the past, as standard, been plied from four POY 300d/192f bobbins using DTY machines, high titers can also be manufactured directly using the WINGS HD take-up machine. Combining the WINGS HD and the eAFK Big V allows all available winding positions to be utilized during texturing.