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.

Checkpoint Systems, a provider of source to shopper solutions to the retail industry, has announced the launch of the OPAL Tag. The new pinless article surveillance solution facilitates the protection of footwear, sportswear, outdoor equipment and other hard-to-protect goods.

The one-piece OPAL Tag, developed by Checkpoint’s Alpha High Theft Solutions division, uses a unique locking mechanism that includes small rubber pads. This pinless solution is suitable for a range of goods – including footwear, sportswear, outdoor clothing as well as outdoor and athletics equipment – as it ensures that the device does not damage the items when it is attached or removed.

In addition, the OPAL Tag has two other advantages: It is easy for store associates to apply and remove with just one hand, optimising workflows - and it is unobtrusive, improving the customer experience. For example, if it is attached to a shoe, the customer can still try on the item without having to ask staff for help.

Proven security features
Besides the new, optimised handling, the OPAL Tag has a bandwidth of security features that have proven successful for retailers in preventing theft. These include flashing LED lighting to deter potential thieves, showing them that the security device is live. The OPAL solution is also equipped with Alpha 2 Alarm technology, meaning that an alarm will sound if the device passes by an EAS antenna. Attempts at tampering are also detected in this way.

The 2002 prize of the Walter Reiners Foundation of the VDMA Textile Machinery Association for the best Master's thesis in German textile mechanical engineering was awarded to a young engineer from the ITA Institut für Textiltechnik of RWTH Aachen University. The prize ceremony took place at Techtextil 2022 in Frankfurt am Main, Germany. Peter D. Dornier, Chairman of the Board of the Walter Reiners Foundation, presented the award at the VDMA Textile Machinery Association’s booth.

Felix Xaver Zerbes, M.Sc., was awarded the "Promotional Prize for the Best Master's Thesis of the German Textile Machinery Industry 2022", endowed with 3,500 EUR, for his master's thesis "Development and Construction of a Separation Unit for Weft Yarns in Air Jet Weaving".

The subject of the master's thesis was the development of a mechanism with which faulty sections in the weft yarn can be sorted out before they are woven into the textile. This way, both yarn-related weft defects and material defects can be drastically reduced. The prototype developed by Mr Zerbes shows how this can be done even during the ongoing weaving process without having to stop production. Due to its modular design, the yarn rejection unit can be retrofitted to many different types of air-jet weaving machines, which represents an enormous savings potential not only in Germany but in weaving mills all over the world.

• The Borvida™ portfolio introduces sustainable base chemicals to Borealis’ range of product offering
• The range will initially be based on non-food waste biomass, and chemically-recycled waste; in the future it will also draw from atmospheric carbon capture
• The traceability of the content will be based on Mass Balance, which is ISCC PLUS certified
• This is the next step in an ambitious sustainability journey, which will see Borealis move away from traditional fossil-based feed

Borealis is strengthening its EverMinds™ circular product offering with Borvida™, a range of sustainable base chemicals.

The Borvida portfolio will offer base chemicals or cracker products (such as ethylene, propylene, butene and phenol) with ISCC Plus-certified sustainable content from Borealis sites in Finland, Sweden and Belgium. The move is part of Borealis’ broader commitment to a Future-Positive Revolution, in which the unrivalled benefits of base chemicals and polymers can be enjoyed at minimal impact to the planet.   

The portfolio will initially comprise Borvida B, from non-food waste biomass, and Borvida C, from chemically-recycled waste. In the future, the range will evolve to include Borvida A, sourced from atmospheric carbon capture. Borvida is complementary and is the building block to Bornewables™, a portfolio of polyolefins based on renewably-sourced second generation feedstocks, and Borcycle™, which offers circular polyolefins produced from mechanically- and chemically-recycled plastic waste.

Borealis produces a wide range of base chemicals for use in numerous industries based on various feedstock, such as naphtha, butane, propane and ethane. Through its olefin units (steam cracker and propane dehydrogenation), it converts these into the building blocks of the chemical industry: ethylene, propylene and C4 hydrocarbons (butylenes, ethyl tertiary-butyl ether (ETBE) and butadiene), and C5-6 hydrocarbons (pygas, phenol) among others.

The basis of the Borvida portfolio is Mass Balance, a Chain of Custody model that enables sustainable content to be tracked, traced, and verified through the entire value chain, offering sustainability-assured products from feedstock to end product. Using this model, circular alternatives can be offered in a cost-effective and environmentally-conscious way, which can be scaled up quickly without compromising on quality or efficiency.

Borvida can be used for a wide range of different polymer and chemical applications, also beyond polyolefins (PO). Non-PO polymers, such as polycarbonates, acrylonitrile butadiene styrene (ABS), super absorbant polymer (SAP) and other chemicals, are utilised for various end applications including coatings, plasticizers, adhesives, automotive, electronics, lubricants, detergents, appliances and sports equipment.

Together with key strategic partners, including Neste and Covestro, Borealis strives to provide a long-term solution in order to allow value-chain partners to meet their sustainability goals. Borvida will enable our customers to increase the sustainability of their products, keeping them ahead of forthcoming legislative changes, and meeting their customers’ demands for climate-conscious products.

Introduced on a smaller scale in early 2020, early renewable base chemicals customers include Covestro. “The use of alternative sustainable raw materials is one important pillar of our strategic ambition to become fully circular”, comments Frank Dörner, Managing Director Covestro Procurement Services GmbH & Co. KG. “The new product line is a good example for joint solutions, another strategic pillar, in order to establish new and reliable supply chains creating benefits for our customers.”

The ReHubs initiative brings together key European and world players to solve the European textile waste problem by transforming “waste” into a resource, and to boost textile circular business model at large scale.

This collaboration is set to turn the societal textile waste issue into a business opportunity and to fulfil the EU ambitions of the Green Deal, of the mandatory texile waste collection by end 2024 and the transition into Circular Economy.

In 2020 EURATEX launched the ReHubs initiative to promote collaboration across the extended textile value chain and considering all perspectives on chemicals, fibers making, textiles making, garments production, retail and distribution, textiles waste collection, sorting and recycling.

In June 2022 ReHubs completes a Techno Economic master Study (TES) which researches critical information on the feedstock (textile waste) data, on technology, organizational and financial needs to recycle 2.5 million tons of textile waste by 2030 and to effectively launch the ReHubs.

EURATEX’s ReHubs initiative plans to pursue fiber-to-fiber recycling for 2.5 million tons of textile waste by 2030
According ReHubs Techno Economic Master Study (TES), the textile recycling industry could generate in Europe around 15,000 direct new jobs by 2030, and increase need for nearshoring and reshoring of textile manufacturing.

The textile recycling industry in Europe could reach economic, social and environmental benefits for €3.5 billion to €4.5 billion by 2030
“Transform Waste into Feedstock” announced as first project supported by the ReHubs, and aiming at building up a first 50,000 tons capacity facility by 2024.

Europe has a 7-7.5 million tons textile waste problem, of which only 30-35% is collected today.  

Based on the ambitious European Waste law, all EU Member States must separately collect the textile waste in 2 years and half. While some countries are designing schemes to face the waste collection challenge, currently no large-scale plan exist to process the waste.

The largest source of textile waste (85%) comes from private households and approximately 99% of the textile waste was made using virgin fibers.

Euratex  assesses that to reach a fiber-to-fiber recycling rate of around 18 to 26 percent by 2030, a capital expenditure investment in the range of 6 billion € to 7 billion € will be needed, particularly to scale up sufficient sorting and processing infrastructure. The economic, social, and environmental value which could be realized, potentially total an annual impact of €3.5-4.5 billion by 2030.

Once matured and scaled, the textile recycling industry could become a profitable industry with a total market size of 6-8 billion € and around 15,000 direct new jobs by 2030.

Next steps of the ReHubs initiative

• A European textile recycling roadmap proposing Objectives and Key Results to recycle fiber-to-fiber 2.5 million of textile waste by 2030
• A leading collaboration hub with large players and SMEs from across an extended European textile recycling value chain
• A first concrete portfolio of 4 launching projects:
  - Transform textile waste into feedstock
  - Increase the adoption of mechanically recycled fibers in the value chain
  - Expand capacity by solving technical challenges for thermo-mechanical textiles recycling
  - Create capsule collection with post-consumer recycled products

The 1^st project addresses current sorting technologies which have limits to identify materials with sufficient accuracy for the subsequent circular recycling processes. The “Transform Waste into Feedstock” project will focus on further developing and scaling such sorting technologies. The project group led by Texaid AG aims on building up a first 50,000 tons facility by the end 2024.

With the purchase of the latest technology, iSAVER® by Itema, in weaving machines, ISKO pushes the envelope of technological performance and sustainability, making further progress in product and process efficiency.

This decision is an additional, important asset in ISKO’s journey towards a genuine Responsible Innovation™. It is part of other crucial investments made by the company, aimed at further reducing its environmental impact, among which stand out R-TWO™50+ – a new denim generation made with a minimum of 50% pre- and post-consumer recycled blend – and the Green Machine – a pioneering technology providing a 100% post-consumer recycling solution that fully separates and recycles cotton and polyester blends at scale.

After an intensive process, a selection was made where ISKO focuses on the development of technical solutions that enable greater resource savings and more sustainable production methods, always with the protection of workers at heart.

As a result, ISKO’s Headquarters extend the company's long-term relationship with Itema,
strengthening the company’s position as the mill with one of the world’s largest denim capacities. The new rapier machines are enhanced by the iSAVER® technology, a breakthrough mechatronic innovation that eliminates the waste selvedge on the left side of the fabric, allowing for saving in energy and raw materials, cutting in half the cotton waste that typically results from the weft yarn. All types of ISKO’s innovative fabrics, with a multitude of different constructions and fiber mixtures, can now be produced using these advanced weaving technologies, with a special focus given to the R-TWO™ technology in terms of its sustainable credentials.

• Natural fibers combined with bio-derived epoxy resins provide sustainable options for Industrial markets

Hexcel has developed a new product range that combines Hexcel resin systems made with bio-derived resin content with natural fiber reinforcements to create material solutions for Automotive, Winter Sports, Marine and Wind Energy applications.

HexPly Nature Range includes proven resins such as HexPly M49, M78.1-LT and M79 but with bio-derived epoxy resin content. The excellent resin characteristics remain unchanged in the new Nature Range products, maintaining high mechanical performance and consistent processing properties.
In addition, the HexPly Nature Range provides prepreg options with natural fiber reinforcements that can be seamlessly integrated into existing production processes.

Hexcel worked with TÜV Austria to provide independent, high-quality measurement and assessment of the bio-content of HexPly Nature Range products. TÜV Austria’s OK biobased certification uses a standardized measurement of the biobased carbon content enabling transparency and easy like-for-like comparison between products.

At JEC World in Paris on May 3-5, Hexcel presented an alpine ski produced by the Tecnica Group Ski Excellence Center which produces skis for Blizzard and for Nordica using HexPly Nature Range M78.1-LT UD flax fiber prepreg. In addition to providing a bio-based material solution, the natural fiber-reinforced prepreg also offers the potential to improve impact performance and vibration damping in the ski.

Claude Despierres, VP of Sales and Marketing – Industrial at Hexcel, said, “Our new HexPly Nature Range forms an important part of providing customers with biobased, TÜV-certified material options based on our established prepreg resin systems. Marine, winter sports, wind energy and automotive manufacturers can now have the choice to switch from petroleum-based material solutions to Hexcel HexPly Nature Range with no compromise in performance or process efficiency.”

• Das MMI (Materialmodellierung, mechanische Berechnung und Spritzgusssimulation)-Team für fortgeschrittene Simulationstechnologien bietet erheblich verbesserten Service für PA6-GF-Werkstoffe
• Integrative Simulationsumgebung lässt sich effektiv mit der Digimat-Software anwenden und gewährleistet präzise und robuste Finite-Elemente-Analysen

DOMOs fortschrittliche Simulationsumgebung MMI für PA66-Bauteile gilt auf dem Markt bereits als Referenz für präzise Simulationen. Ab sofort unterstützt dieses Simulationstool OEMs und Bauteillieferanten bei der Entwicklung von leistungsfähigen, leichten und kosteneffizienten Bauteilen aus PA6. Mit dem DOMO Service Hub können Bauteilentwickler ihre Polyamidlösungen somit schneller in Serie bringen.

Bei glasfaserverstärkten Materialien muss die Ausrichtung der Glasfasern berücksichtigt werden, die während des Spritzgussverfahrens entsteht. Dabei ermöglicht die Digimat-Software eine genaue integrative Simulation. DOMO besitzt ein umfangreiches Fachwissen bei der integrativen Simulation der TECHNYL® A-Serie von PA66-GF-Materialien und ist daher in der Lage, präzise Bauteilsimulationen durchzuführen.

Die neuen MMI-PA6-GF Materialkarten können für eine Vielzahl von Glasfaserkonzentrationen und -temperaturen sowie für elastische und elastoplastische Materialmodelle mit Versagensindikatoren eingesetzt werden. Diese sind in der Digimat Software verfügbar und führen zu den gleichen präzisen Ergebnissen wie bei den TECHNYL® A PA66-Werkstoffen. Die neuen Materialkarten heben somit die PA6-Datenbank auf das gleiche Leistungsniveau wie PA66 an. Im nächsten Schritt werden in die Digimat-Datenbank auch crashspezifische und thermische Modelle eingepflegt.

„Dank der präzisen MMI-Simulation können TECHNYL® Bauteile entwickelt werden, die leichter, leistungsfähiger und kosteneffizienter sind“, erklärt Gilles Robert, Material Expert bei DOMO. „Unsere Kunden profitieren von kürzeren Entwicklungszeiten und haben eine bessere Kontrolle über die internen Kosten. Der kontinuierliche Aufbau der TECHNYL®-Materialdatenbank erweitert das Anwendungsfeld dieser Simulationsumgebung auf PA6 Bauteile.“

A new interview study from NGO ChemSec shows that there is a gap between supply and demand when it comes to recycled materials, causing confusion and bottlenecks. Among other things, suppliers go out of their way using elaborate trade schemes to reach the coveted ”100% recycled” tag, which – it turns out – is not that important to consumer product brands. Far more crucial aspects, according to several major B2C companies, are:

• Honest communication towards customers
• Comprehensive information from suppliers
• Clear standards for recycled material

These are some of the conclusions from NGO ChemSec’s survey and interview study with 26 highly well-known consumer product brands. All brands responded to a survey concerning their current plastic use, as well as their needs, expectations and challenges regarding using more recycled material, to enable the shift to a circular economy for plastics.

Ten of the brands then participated in in-depth interviews on the same topics:, Essity, H&M, IKEA, Inditex , Lego, Mars,  SC Johnson, Tarkett, Unilever and Walgreens Boots Alliance.

Is non-mechanical recycling the answer?
Only about ten percent of all discarded plastics is recycled today, which is of course not nearly enough to achieve a circular plastics economy. Despite ambitions and initiatives to reduce plastics use – replacing the materials with other, more sustainable ones – the “plastic tap” is not expected to be turned off anytime soon. Quite the opposite, which makes raising the recycling rates more important than ever.

Although commercially viable, traditional (mechanical) recycling is afflicted with severe flaws, such as legacy chemicals, quality and functionality issues, as well as the lack of clean and sorted waste streams. The brands cited quality and functionality issues as the main obstacles for using more recycled material in their products.

This opens up for non-mechanical recycling, sometimes referred to as chemical recycling, where the plastic is either dissolved or broken down into smaller building blocks. Harmful additives and other hazardous chemicals can be removed in the process, and a material comparable to virgin plastic can be achieved – at least in theory.

So far, however, non-mechanical recycling technologies are costly, energy-intensive, and often require the addition of a great deal of virgin plastic to work – the very material that needs to be phased out.

The chain of custody models needs to be detangled
Apart from these production issues, there is a wide range of chain of custody models surrounding non-mechanical recycling, including mass balance and book & claim, which enable trade of credits or certificates for recycled material.

This cuts the physical connection between input and output, making it possible for a supplier to sell a material as “100% recycled”, when the actual recycled content could be zero.

This is a major issue for the brands ChemSec has spoken to, who value honest and correct communication towards customers. It turns out, perhaps somewhat surprisingly, that being able to slap a “made from 100% recycled plastic” label on a product is not all that important to brands.

To the brands, a physical connection between input (the discarded plastic waste headed for recycling) and output (the product at least partially made from recycled plastics) is far more important.

A physical connection, along with correct and adequate information from suppliers, as well as clearer standards and guidelines than what is available today, is what brands require to increase the use of recycled material and move us closer to a circular economy for plastics.

• Focus on the embossing technique applied to the recycled fabrics collection of the NATIVE Sustainable Textiles line

Performance Days, the leading trade fair on the latest trends in the development of fabrics for the functional textile industry, has as main focus the PERFORMANCE FORUM, where the most recent innovations and developments are presented with a prize awarded to the winner of the category chosen for the current year, which for 2022 will be “The Journey to Carbon Neutrality - CO₂ Reducing Technologies and Measuring Tools”.

Protagonists are therefore all those materials that contain carbon in reduced form and the strategies/technologies that companies implement to ensure the reduction of CO₂ emissions during production and how these reductions are actually measured (through energy saving, careful use of resources, use of more sustainable materials, local production and other technological and production measures).

In this sense, Sitip’s strategy for reducing CO₂ emissions and maximizing the use of resources is based on consolidating and optimizing the layout and logistics of the production plants, installing a cogeneration plant and a new generation smoke smoke abatement system and the transition to an energy-saving lighting system.

Regarding products, at Performance Days Sitip brings its latest innovations with an absolute focus on the embossing technique, a particular system of mechanical processes that can also be used on the recycled items from the NATIVE Sustainable Textiles line, a technology that is applied to fabrics produced with recycled yarns and chemicals with low environmental impact, implementing the GRS standard (Global Recycle Standard), result of the journey towards sustainability implemented by the company.

The collection of embossed designs combines performance, style and sustainability: thanks to special mechanical processes that combine heat and pressure, the fabric is embossed with geometric and design motifs for a more structured and palpable texture.