From the Sector

Many end-users now expect recycled materials to be in textile products they purchase – and this is driving innovation throughout the industry. However, there are still many technical and economic issues facing yarn and fabric producers using recycled resources. Members of the Swiss Textile Machinery Association offer some effective solutions to these challenges.

Synthetic recycled materials such as PET can usually be treated similarly to new yarn, but there are additional complexities where natural fibres like wool and cotton are involved. Today, there’s a trend towards mechanically recycled wool and cotton fibres.

Spinning recycled cotton
The use of mechanically recycled fibres in spinning brings specific quality considerations: they have higher levels of short fibres and neps – and may often be colored, particularly if post-consumer material is used. It’s also true that recycled yarns have limitations in terms of fineness. The Uster Statistics 2023 edition features an extended range of fibre data, supporting sustainability goals, including benchmarks for blends of virgin and recycled cotton.
In general, short fibres such as those in recycled material can easily be handled by rotor spinning machines. For ring spinning, the shorter the fibres, the more difficult it is to guide them through the drafting zone to integrate them into the yarn body. Still, for wider yarn counts and higher yarn quality, the focus is now shifting to ring spinning. The presence of short fibres is a challenge, but Rieter offers solutions to address this issue.

Knitting recycled wool
For recycling, wool fibres undergo mechanical procedures such as shredding, cutting, and re-spinning, influencing the quality and characteristics of the resulting yarn. These operations remove the natural scales and variations in fibre length of the wool, causing a decrease in the overall strength and durability of the recycled yarn. This makes the yarn more prone to breakage, especially under the tension exerted during knitting.

Adapting to process recycled materials often requires adjustments to existing machinery. Knitting machines must be equipped with positive yarn suppliers to control fibre tension. Steiger engages in continuous testing of new yarns on the market, to check their suitability for processing on knitting machines. For satisfactory quality, the challenges intensify, with natural yarns requiring careful consideration and adaptation in the knitting processes.

From fibres to nonwovens
Nonwovens technology was born partly from the idea of recycling to reduce manufacturing costs and to process textile waste and previously unusable materials into fabric structures. Nonwovens production lines, where fibre webs are bonded mechanically, thermally or chemically, can easily process almost all mechanically and chemically recycled fibres.

Autefa Solutions offers nonwovens lines from a single source, enabling products such as liners, wipes, wadding and insulation to be produced in a true closed loop. Fibres are often used up to four times for one product.

Recycling: total strategy
Great services, technology and machines from members of Swiss Textile Machinery support the efforts of the circular economy to process recycled fibres. The machines incorporate the know-how of several decades, with the innovative power and quality standards in production and materials.
Stäubli’s global ESG (environmental, social & governance) strategy defines KPIs in the context of energy consumption, machine longevity and the recycling capacity in production units worldwide, as well in terms of machinery recyclability. The machine recyclability of automatic drawing in machines, weaving systems and jacquard machines ranges from 96 to 99%.

More than 82 companies, businesses and social organizations – including AkzoNobel – are involved in a major Dutch research program focused on developing new technologies that will help solve some of today’s societal challenges.
 
Seven broad consortia have been established as part of the government-funded “Perspectief” program, with AkzoNobel set to play a leading role in the SusInkCoat project, which will explore how to make inks and coatings more sustainable.

The company will work together with private partners and other societal stakeholders to develop new materials, processes and applications to improve the durability, functionality and recyclability of coatings, thin films and inks. The program, which will run for the next five years, is backed by the Ministry of Economic Affairs and Climate Policy and the Dutch Research Council (NWO).

“Our discussions about collaborating with our SusInkCoat partners have been very positive,” says AkzoNobel’s R&D Director of Scientific Academic Programs, André van Linden, who is also the co-lead of SusInkCoat. “We’re all facing the same societal challenges – how to become more circular – and we’re looking for the same solutions in different application areas. But we’ve never done that together for this specific research topic, so we need an ecosystem to help us solve these challenges.
 
Van Linden adds that the program – one of many R&D projects the company is involved with – will also support AkzoNobel’s ambition to achieve 50% less carbon emissions in its own operations – and across the value chain – by 2030.
 
 “We want to make the recyclability of materials - such as furniture, building materials and steel constructions - easier by introducing functionalities like self-healing, higher durability and triggered release,” he continues. “The more you can leave the materials in their original state, the more sustainably you can operate.”

AkzoNobel will be collaborating with Canon, Evonik, GFB, PTG and RUG Ventures, who together possess extensive knowledge of market demands, supply chains and production processes. All the SusInkCoat partners will also work with academic researchers at several Dutch universities in an effort to identify promising developments that can be commercialized, used for education purposes or for outreach to the public.

Research being conducted by the other six consortia includes investigating methods to make tastier plant-based food; flat optics for more sustainable hi-tech equipment; and cheaper and more accessible medical imaging technology.

Solvay awarded a scholarship to facilitate an educational alliance between the Massachusetts Institute of Technology (MIT) and Fermi High School in Cecina. The initiative unfolded during an event held at Solvay's Rosignano site in Italy, providing a platform for students and faculty. Through this partnership, 200 Fermi High School students participated in STEM* and digital lessons from MIT's Global Teaching Labs project, emphasizing the teaching of scientific disciplines by the American university.

Beyond the scholarship award ceremony, students received a tour of Solvay's factory in Rosignano. The tour highlighted the company's dedication to safety, sustainability, and bridging the gap between academia and industry challenges. The experience illustrated the practical application of academic studies in an industrial context, showcasing Solvay's advanced control procedures, safety protocols, technological innovations, digital transformation efforts, and sustainability measures.

Discussions during the event included key sustainability topics such as water conservation, energy efficiency, waste management, and Solvay's commitment to promoting a balanced work-life culture and diversity within the workplace.

This collaboration aligns with Solvay's global Corporate Citizenship program. Through this program, Solvay supports individuals and communities, channeling efforts to tackle worldwide societal challenges through strategic investments in education, sustainability, and local community initiatives.

*STEM stands for science, technology, engineering and mathematics

RadiciGroup announced the appointment of Stefano Pigozzi to the Board of Directors of Radici Partecipazioni SpA, the parent company overseeing all the Group's business activities in the chemicals, engineering polymers and advanced textile solutions sectors.
 
A professional with proven experience in the chemical industry, Mr. Pigozzi will complement the Board with his strategic vision acquired in international organizations.
 
Stefano Pigozzi graduated from the University of St. Gallen in Switzerland with a degree in Business Administration and started his work experience in the finance division of BASF in the late 1980s. Since then, chemistry has remained at the centre of his career: over the years, he has held marketing and sales positions of increasing responsibility in various business sectors (plastics and inorganics), moving up to more strategic and managerial roles within BASF, including president of the Monomers Division and, most recently, head of the Group Global Purchasing Division at the Ludwigshafen headquarters.
 
During his more than 30-year career at BASF, Mr. Pigozzi has consistently demonstrated his leadership capability, his financial analysis skills and his dedication to corporate business success. He has also contributed significantly to the positioning of BASF as a global leader in the chemical industry.
 
Mr. Pigozzi’s appointment to the Board of Directors of Radici Partecipazioni is aimed at strengthening RadiciGroup's presence in the market and helping to guide the company towards new goals.

At the end of last year, KARL MAYER launched the TM 4 EL – a new, highly flexible machine for the mid-range segment in the four-bar tricot machine sector. The machine produces fabrics for upholstery, automotive interiors and outerwear, as well as sportswear items and home textiles.

Featuring KARL MAYER’s proven CFRP technology, the TM 4 EL is up to 30% faster than the previous four-bar tricot machine designed for the commodity sector.

The new TM 4 EL is offered in gauges E 28 and E 32. The available working widths are 210” and 280”, with a working width extension also available. Further width varieties are also planned. Equipment highlights include an integrated Laser Stop to detect yarn breakages early, and functional LED lighting, which illuminates the warp knitting area for easy handling and signals unplanned machine stops using the corresponding colour. The machine can be networked with KM.ON’s secure cloud via the k.ey device to utilise the KARL MAYER GROUP’s digital solutions. This includes, for example, the web-based lapping editor CORE LITE.

Avery Dennison, a leader in materials science and digital identifications solutions, has completed a project with NRVLD, a community-based agency comprising artists, technologists and media personalities who are passionate about disruptive innovation.

Avery Dennison created limited edition augmented reality T-shirts worn by the NRVLD Executive Team during ‘NRVLD’, an immersive event held during Art Basel Miami Beach in December 2023.

The 30 T-shirts were digitally connected via heat transfers featuring a QR code and image recognition. Visitors were transported to an immersive artwork metaverse, built by ARkivist. In addition to the AR experience, each garment was personalized with the wearer's contact details embedded in the NFC woven patch on the chest, providing a connection point for guests throughout the event. Both connected garment experiences were powered by Avery Dennison’s atma.io connected product cloud.

Avery Dennison will be showcasing this project at NRF 2024: Retail’s Big Show, from January 14-16 at the Javits Convention Center in New York. The connected T-shirts will feature alongside a host of apparel digital solutions for supply chain visibility, product tracking, and consumer engagement.

Michael Colarossi, vice president, innovation, product line management and sustainability, Apparel Solutions, Avery Dennison comments: “The trajectory of consumer experiences unmistakably leans towards digital, and brands are actively seeking innovative methods to engage consumers by merging traditional craftsmanship with digital creativity. In this scenario, AR acted as the conduit, and Avery Dennison's connected garment technology and on-garment Embelex branding turned that vision into tangible reality."

Pavan Bahl, founder of Bellwether Culture and co-founder NRVLD, comments: "In the Web3 sphere, blockchain technology enables ownership of digital goods and identity. Our collaboration with Avery Dennison showcases the potential of bridging this gap, illustrating the exciting possibilities in this space."

Mahlo GmbH + Co. KG will participate in the Colombiatex textile show, held in Medellin from 23 to 25 January. This year, Mahlo will be joining forces with Brückner Textile Technologies to present their solutions for the textile production sector at their joint booth.

Both companies appreciate the power of Colombia’s textile industry. Textile is one of the most important industrial sectors in the Latin American country with an export value of clothing of more than 600 million US dollars. The United States are also the main export destination for apparel products. At Colombiatex 2024, Mahlo's Head of Sales, Thomas Höpfl, will be present to share insights and discuss how Mahlo’s innovative technologies can address the specific challenges faced by Colombian textile manufacturers. Sustainability of process efficiency being among the most pressing ones.

• Dibella increases the use of Cotton made in Africa cotton according to the mass balance system from 300,000kg in 2023 to 750,000kg in 2024.

With Cotton made in Africa (CmiA), Dibella is making its business model even more sustainable. This enables the company to minimise its environmental impact and support the people in the growing regions. Dibella relies on the CmiA mass balance system in the chain to achieve its corporate goal of "increasing the use of sustainable fibres".

Cotton made in Africa initiative is an internationally recognised standard for sustainable cotton grown by African smallholder farmers. With up to 13% less greenhouse gas emissions, CmiA-verified cotton has a significantly lower impact on the environment than the global average and also supports village communities in Africa beyond sustainable cotton cultivation. CmiA supports smallholder farmers in sub-Saharan Africa in the sustainable cultivation of genetically unmodified cotton and is committed to improving working conditions in ginning factories. Through a licence fee, which is paid by customers like Dibella, the farmers receive training and access to operating resources in order to reduce the use of pesticides and increase the quality of their cotton and yields from their fields at the same time.

Cotton made in Africa takes a pragmatic approach to the processing of its cotton with two different models in order to best meet the demands for transparency and feasibility in the chain: The Hard Identity Preserved System and the Mass Balance System; Dibella has opted for the latter. While CmiA-verified cotton is always traded separately from other cotton right up to the spinning mill and can therefore be traced seamlessly from the growing region to the ginning plant to the spinning mill, the mass balance system allows CmiA cotton to be mixed with cotton of other origins at the spinning mill level as long as a balance between cotton purchases and CmiA-labelled yarns is ensured. This principle ensures the purchase of sustainably grown fibres and helps Dibella to bring a larger quantity of sustainable cotton into its textile cycle, which ultimately benefits smallholder farmers.

CARBIOS published its second Sustainability Report with 2022 as the reference year. Like the first, this report is not subject to any publication obligation for the company, confirms CARBIOS' commitment and desire for transparency in terms of environmental, social and governance (ESG) initiatives.

In 2022, several objectives were achieved:

• Increase of the number of independent directors on the Board of Directors,
• Completion of the first carbon footprint report to sustainably reduce greenhouse gas emissions,
• Consolidation of the life cycle analysis (LCA) of the PET enzymatic depolymerization process,
• Continuation of employee training in safety and environmental issues.

In October 2023, CARBIOS appointed Bénédicte Garbil as Senior Vice President of Corporate Affairs and Sustainability: "In 2022, CARBIOS strengthened its governance, building a solid foundation for our continued growth and commitment to Corporate Social Responsibility (CSR). This strategic development demonstrates our commitment to operational excellence and transparency. We have integrated the principles of sustainability, ethics and environmental responsibility at the heart of our governance, putting CSR at the forefront of our actions."

The kick-off meeting for the "Trends and Design Factors for Hydrogen Pressure Vessels" project, recently held at AZL Aachen GmbH, was a successful event, bringing together more than 37 experts in the field of composite technologies. This event laid a solid foundation for the Joint Partner Project, which currently comprises a consortium of 20 renowned companies from across the composite pressure vessel value chain: Ascend Performance Materials, C evotec GmbH, Chongqing Polycomp International Corp. (CPIC), Conbility GmbH, Elkamet Kunststofftechnik GmbH, F.A. Kümpers GmbH & Co. KG, f loteks plastik sanayi ticaret a.s., Formosa Plastics Corporation, Heraeus Noblelight GmbH, Huntsman Advanced Materials, Kaneka Belgium NV, Laserline GmbH, Mitsui Chemicals Europe GmbH, Plastik Omnium, Rassini Europe GmbH, Robert Bosch GmbH, Swancor Holding Co. Ltd. Ltd., TECNALIA, Toyota Motor Europe NV/SA, Tünkers do Brasil Ltda.

The project follows AZL´s well proven approach of a Joint Partner Project, aiming to provide technology and market insights as well as benchmarking of different material and production setups in combination with connecting experts along the value chain.

The kick-off meeting not only served as a platform to foster new contacts and get informed about the expertise and interests of the consortium members in the field of hydrogen pressure vessels, but also laid the groundwork for steering the focus of the upc oming project's ambitious phases. As a basis for the interactive discussion session, AZL outlined the background, motivation and detailed work plan. The central issues of the dialogue were the primary objectives, the most pressing challenges, the contribut ion to competitiveness, and
the priorities that would best meet the expectations of the project partners.

Discussions covered regulatory issues, the evolving value chain and the supply and properties of key materials such as carbon and glass fibres and resins. The consortium defined investigations into different manufacturing technologies, assessing their matu rity and potential benefits. Design layouts, including liners, boss designs and winding patterns, were thoroughly considered, taking into account their implications for mobile and stationary storage. The group is also interested in cost effective testing m ethods and certification processes, as well as the prospects for recycling into continuous fibres and the use of sustainable materials. Insight was requested into future demand for hydrogen tanks, OEM needs and strategies, and technological developments to produce more economical tanks.

The meeting highlighted the importance of CAE designs for fibre patterns, software suitability and the application dependent use of thermoset and thermoplastic designs.

The first report meeting will also set the stage of the next project phase, which will be the creation of reference designs by AZL's engineering team. These designs will cover a range of pressure vessel configurations using a variety of materials and production concepts. The aim is to develop models that not only re flect current technological capabilities, but also provide deep insight into the cost analysis of different production technologies, their CO₂ footprint, recycling aspects and scalability.

AZL's project remains open to additional participants. Companies interested in joining this initiative are invited to contact Philipp Fröhlig.