From the Sector

According to the World Health Organization (WHO), cardiovascular disease is one of the most common natural causes of death. Every year, it is the cause of death of around 17 million people worldwide. The Peter Dornier Foundation Prize 2022 has now awarded a research work that is to improve the medical care of people with insufficient heart valve function in the future and prolong the patients' lives.

The human heart is a high-performance machine: over the course of a person's life, it beats almost three billion times, pumping around 200 million litres of blood through the body. Enormous stresses that can sometimes lead to life-threatening signs of wear and tear. If a heart valve gets out of step, patients usually get artificial-mechanical or biological valves as a replacement. However, mechanical solutions imply patients to take blood-thinning medication for the rest of their lives. In addition, there may be audible closing noises. For example, almost a quarter of patients with mechanical heart valves complain of sleep disturbances. Biological heart valves, on the other hand, such as those made from animal tissue, require a great deal of manual work and have a shorter lifetime.

Potential of weaving for medical products demonstrated
For this reason, Graduate Engineer Mathis Bruns at the Institute for Textile Machinery and High-Performance Textile Materials Technology (ITM) at the TU Dresden is researching an implant alternative made of fabric. As part of a research project that also involved heart surgeons from the Dresden Heart Centre and the University Hospital in Würzburg, Mr. Bruns provided important findings for weaving an artificial heart valve in his diploma thesis. For his work entitled "Development of tubular structures with integrated valve function", Mathis Bruns has now received the Peter Dornier Foundation Prize 2022, endowed with 5,000 euros. In his laudation, Dr. Adnan Wahhoud, former head of the development department of air-jet weaving machines at DORNIER in Lindau, said: "With his work, the winner of the award demonstrates very clearly the potential of weaving technology to produce fabrics of complex form, geometry and structure with the aim of prolonging and improving people's lives." The award-winning thesis enriches research into three-dimensional tissues for use in medicine.

Weaving replacement heart valves without seams
"A particular advantage of our approach is the integral production method", says foundation prize winner Mathis Bruns. “The geometry and function of a heart valve is that complex that woven heart valves could not be produced in this form previously. Through the combined use of a rigid rapier weaving machine with bobbin shield and a Jacquard machine, it is possible to weave the replacement heart valve in such a way that it no longer has be sewn together. Even the tubular structures for the blood vessels and the integrated valve function are ‘all of one piece’. Seams are always a weak point in textile medical products," Mr. Bruns adds. “Another advantage of the woven heart valve is the possibility to insert it by the help of minimally invasive surgery. Hence, the folded valve which is about the size of a tea light is to be pushed with a catheter via the bloodstream to the target position in the heart and unfolded there. The patient's chest and heart would then no longer have to be cut open”, explains prize winner Mr. Bruns.

Textile structure is similar to human tissue
A wide variety of medical products have always been produced on DORNIER weaving machines. Customers use them to produce fabrics for bandages, prostheses, blood filters and orthoses among other things. For Mathis Bruns, it is only evident that implants such as heart valves will more and more be woven on the machines from Lindau in the future. "Textile tissue is very similar to human tissue," he says. The human body consists largely of thread-like materials, just as a textile fabric is made up of thousands of individual threads. "Muscle fibres convey force impulses, nerve tracts send stimuli such as pain and brain cells convey information via thread-like dendrites and axons." Because of their ‘thread-like properties’, woven implants are therefore particularly suitable for medical applications.

Since 85 years, Riri Group is a point of reference for the creation of details of style providing fashion brands with accessories, including zippers, buttons, metal components, and fashion jewels. Fashion is necessarily a reflection of social changes, cultural turmoil, popular aspirations, and the needs of the final customer: from these assumptions comes Riri Group’s FW 23-24 collection. The newly released collection presents two dynamic paths to explore the needs of the market targeting self-expression through style: Extreme Outverse and Fluid Glamour.

EXTREME OUTVERSE: Accessories for accessing multidimensionality
Art, space travels and the metaverse experience provide the inspiration for transparent and glossy digital prints, laser markings, use of colored paints, use of jacquard ribbon and iridescent lurex, invisible button caps, PVD finishes (rainbow, matt black), reverse coated nylon zips.

FLUID GLAMOUR: Redefine infinitely (elegance) standard
Fluid Glamour expands the processes of representing the individual in an elegant interpretation of its complexity. This concept of fluidity and uniqueness meets the new frontier of the space tourism race and intergalactic style to create futuristic atmospheres and sculptural silhouettes: rhinestones and black stones developed by Amom, wool yarns, jacquard, and a variety of tapes – metallised genuine leather and eco-leather, GOTS-certified cotton and GRS-certified recycled polyester, knitwear, white with silver lurex – that reflect the space exploration and dark desert landscapes.

SHIMA SEIKI ITALIA S.p.A. will exhibit at the 91st edition of the Pitti Immagine Filati exhibition in Florence, Italy from 29th June till 1st July, 2022. Products exhibited will include the SWG-FIRST124 and N.SIR123SP computerized flat knitting machines as well as APEXFiz™ design software.

The renewed SWG-FIRST124 is a synthesis of all of SHIMA SEIKI’s experience and know-how in computerized shaped knitting, realizing a tremendous range of knitting from full-fashioning and rib shaping to integral knitting. This all-purpose capability is made possible by the revolutionary SlideNeedle™, which, together with loop pressers and transfer jacks, offers remarkable variety, expanding the boundaries of flat knitting with the capability to produce garments that were previously impossible to produce.

The N.SIR123SP computerized knitting machine with intarsia capability features a special loop presser bed for producing hybrid inlay fabrics with both knit and weave characteristics. N.SIR123SP will also feature the special i-Plating option, capable of alternating yarn colors in any pattern, producing jacquard-like designs using plain jersey stitch. Plating can be performed within the same course and for individual needles. In combination with the loop presser and spring-type moveable sinker system even greater diversity in knit design is possible.

APEXFiz™ is subscription-based design software that 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, replacing physical sampling and consequently reducing 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. Staff at the SHIMA SEIKI booth will be donning knit uniforms produced as a collaborative effort between SHIMA SEIKI ITALIA, knitting companies and yarn companies.

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.

Computerized knitting machine manufacturer SHIMA SEIKI MFG., LTD. will participate in the SIMATEX exhibition in Buenos Aires, Argentina from 30th of May - 2nd of June 2022.

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 the South American market. Three MACH2VS machines, capable of knitting WHOLEGARMENT® knitwear using every other needle, will be shown in 12, 16 and 18 gauge configurations. The N.SVR workhorse series improves on the SVR series, resetting the industry benchmark for shaped knitting. The N.SVR123SP featuring a special loop presser bed that can produce hybrid inlay fabrics with both knit and weave characteristics. Shown in 18 gauge at the SHIMA SEIKI booth, N.SVR123SP will also 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. N.SSR112 improves on the SSR series and continues to offer industry-leading technology in an economical yet reliable package made in Japan.

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 minimize the need for actual sample-making. This realizes significant savings in time, cost and material, contributing to sustainable manufacturing.

Wülfing GmbH is one of the oldest but also one of the most modern home textiles companies in Germany, with its main weaving and finishing operations located in Borken, North Rhine-Westphalia, and a further jacquard weaving mill in Steinfurt, as well as with a making up and packaging plant in the Czech Republic.

At its Borken plant, Wülfing has employed a Monforts sanforizing line since 2009 to guarantee the required dimensional stability and shrink-fastness of its high quality bed linen. With a working width of over three metres, the sanforizing process is a central pillar in the production of typical wide-width cotton fabrics for home textiles.

In 2017, the company was able to acquire a second Monforts sanforizing line from another company which, although built in 2005, had been virtually unused. It was overhauled and installed behind a Monforts equalizing frame of a similar age.

“Unfortunately, the two machines had to be operated separately via individual controls and did not represent an integrated unit,” says Schulte-Mesum. “This resulted in deficits in the desired productivity and in the control technology.”

Wülfing consulted with Monforts on a number of upgrade options and opted for a completely new joint control system to merge the two machines, as well as a new connecting inlet, a tensioning and damping field and a steaming unit.

“Monforts provided a fast and precise erection and commissioning of the technology in spite of the difficult pandemic circumstances,” says Schulte-Mesum. “The result has been an increase in production speeds by 20% and enhanced uniformity in fabric width through a much improved guidance system.

“We are also achieving energy savings as a result of the new control and drive technology and operation has been simplified and improved as a result of the unified control. We benefit from simplified access for maintenance work such as the grinding of the rubber blanket, but most of all we have greatly improved our flexibility and now have two almost identical Monforts sanforizing lines.”