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%.

In cooperation with the Swiss company Haelixa, Oerlikon Manmade Fibers Solutions will, in future, be able to make the entire value chain of a textile end product transparent and hence sustainable. The two development partners are offering a solution for the comprehensive traceability of products, as required by the European Green Deal.

An essential part of the solution is the DNA marker technology developed by Haelixa that enables complete traceability of materials. These markers survive all production process steps, validating that the end product is identifiable. "This innovative technology employs distinct DNA tailored for each project, establishing a unique identity for the material," explains Holly Berger, Marketing Director at Haelixa. "Once the DNA is integrated into the material, it becomes irremovable, impervious to falsification or alteration." Handling is straightforward: the DNA marker is fed into the spinning process with the preparation oil, for example. The preparation system is modified accordingly. Further feeding options are currently being developed.

Smart factory: total transparency with atmos.io
The concept is complemented by atmos.io, Oerlikon's digital platform, which records and evaluates extensive production and process data during the yarn manufacturing process. Atmos.io gives the yarn its digital identity during its time on Oerlikon systems, from the melt to the packaged package. This technology has been used successfully for some time to monitor the production process. With atmos.io, deviations in process parameters and yarn data can be identified and rectified within a very short time, which in turn keeps the yarn quality stable and reduces waste rates.

Combining both technologies enables clear traceability of the yarn produced, even in the downstream process steps. Hence, the yarn's components, qualities, manufacturing conditions, and origin are traced beyond doubt in the finished garment. "The unique DNA carries the 'roots' of the yarn digitally recorded in atmos.io into the everyday life of the end consumer," says Jochen Adler, CTO at Oerlikon Manmade Fibers. The textile end products meet the requirements of the digital product passport required by the EU, which contains the information needed to assess their life cycle assessment and circularity. Initial long-term tests have shown 100% traceability of the yarns in the POY and FDY spinning process. If the yarn manufacturer relies on the atmos.io platform, production systems can be adapted relatively easily to use the DNA markers.

INDA, the Association of the Nonwoven Fabrics Industry, revealed the three finalists that will compete for the Hygienix Innovation Award™. Glatfelter, Mundeo, and Sequel will present their new absorbent hygiene products to senior-level leaders at Hygienix, Nov. 13-16, New Orleans, Louisiana.

Here is a summary of the finalists’ products:

Glatfelter: GlatPure™
GlatPure™ is a range of bio-based absorbent hygiene components derived from renewable materials. This product range consists of a variety of plant-based and natural topsheets, an acquisition distribution layer, an absorbent core, a newly improved backsheet, and a landing zone. Crafted from 100% renewable fibers and biodegradable materials, and enriched with bio-based binders, GlatPure™ stands as the industry’s first fully functional, fossil-fuel free range of solutions.  

Mundao: Diap’Earth®
From nature to nature: Mundao brings to market DIAP’EARTH®, an industrially compostable baby diaper. This diaper provides a circular solution to the AHP waste issue. Ecoconception (DIAP’EARTH is a bio-based & plastic free diaper) makes it possible to compost the diaper in an industrial composting facility to turn it into carbon where it can become fertilizer for soil. DIAP’EARTH has been successfully composted in major French cities.

Sequel: The Sequel Spiral™ Tampon
The Sequel Spiral™ Tampon features a proprietary spiral design that is engineered to be more fluid mechanically efficient, meaning it is designed to absorb more evenly and not leak before it’s full. In August 2023 the Sequel Spiral™ Tampon received clearance from the United States Food and Drug Administration (FDA) as a medical device and the company will now begin a series of consumer trials, with broad availability expected in Q1 of 2024.

The winner of the Award will be announced at the end of the event, Thurs., Nov. 16th, at 11:30 am. Last year’s award recipient was Pads on a Roll™ by Egal Pads. Pads on a Roll is a wrapped super-thin absorbent period pad that dispenses like toilet paper in public bathroom stalls, preventing the personal embarrassment of not having a menstrual product when needed.

Conference Highlights
In addition to the award presentation, the Hygienix™ conference will focus on consumer-centric innovations, the circular economy, raw material advancements in sustainability, opportunities for advanced recycling in absorbent hygiene, optimizing the packaging footprint, new approaches for odor control, and market trends and drivers. Plus, INDA’s Government Affairs office will be in attendance to provide insights into recent regulatory and legislative issues. Participants can learn about how the current political landscape could affect the nonwovens industry.

The Lenzing Group, a world-leading provider of specialty fibers for the textile and nonwoven industries, has been awarded platinum status in the EcoVadis CSR rating. The rating comprehensively covers the four most important practices in the area of corporate social responsibility: environment, fair working conditions and human rights, as well as ethics and sustainable procurement.

For the third time, Lenzing has been awarded Platinum status for its sustainability performance by EcoVadis, a leading international provider of sustainability ratings for companies. This puts Lenzing in the top one percent of companies worldwide rated by EcoVadis.

EcoVadis has become the world's largest and most trusted provider of corporate sustainability ratings since its founding in 2007, creating a global network of more than 100,000 rated companies worldwide. The methodological framework assesses companies' policies, actions and activities, as well as their published reports, related to the environment, labor and human rights, ethics and sustainable procurement.

In line with its sustainability strategy “Naturally positive”, the Lenzing Group has set ambitious targets in each of its core strategic areas to further strengthen its path from a linear to a circular economy model. Lenzing reports annually on the corresponding implementation measures and the progress made in its sustainability report. This level of commitment and transparency was particularly positively highlighted by EcoVadis in its assessment. The rating provider also emphasized the Lenzing Group's comprehensive measures in the areas of environment, ethics, and labor and human rights.

• Spunbond, meltblown and composite structures for new market opportunities

RadiciGroup is participating with its Advanced Textile Solutions business area at Index in Geneva from 18 to 21 April 2023. Among the Group’s products showcased are spunbond and meltblown for different application sectors, such as roofing, construction, automotive, HO.RE.CA. and filtration.

“The key message we are bringing to the fair is sustainability,” noted Enrico Buriani, CEO of the Nonwovens division of RadiciGroup Advanced Textile Solutions. “Those who already know us know that, for many years, the Group has been focused on proposing low environmental impact products and processes where sustainability is scientifically measured or certified by independent third parties. Our company is dedicated to nonwovens, which, by the way, are produced using 100% renewable energy. We have expanded our portfolio of innovative solutions for customers interested in realizing projects with sustainability as an essential requirement.”

Respunsible® is a spunbond brand manufactured from recycled polypropylene. A preliminary Life Cycle Assessment (LCA) study was carried out by RadiciGroup to demonstrate the correlation between the reduction in environmental impact and the percentage increase in recycled material. The final results demonstrate that a variable percentage of from 50 to 70% recycled material leads to a reduction in CO2 emissions of from 30 to 40%, compared to a fabric made of 100% virgin material, without comprising high technical performance.

Additionally, since RadiciGroup has achieved ISCC PLUS certification (International Sustainability and Carbon Certification), it can offer bio, biocircular or circular polypropylene spunbond and meltblown nonwovens, in which the sustainable polypropylene is biomass balanced. This certification signifies traceability along the supply chain and verifies that the certified companies meet high environmental and social standards.

“Since 2020, we have had a technologically advanced meltblown production line,” Mr. Buriani concluded. “This allows us to make composite structures, sold under the brand name Radimelt®. Now our goal is to expand our filtration applications, diversifying and developing new business, for instance vacuum cleaner bags or HVAC (heating, ventilation and air conditioning) system filters, where we can meet the high efficiency and mechanical resistance demanded, thanks to our latest generation technology.”

• Lenzing has been awarded the highest CSR rating from EcoVadis for the second consecutive time
• Global rating standard evaluates 90,000 companies: Lenzing among top 1 percent of its industry
• enzing joins the UN Global Compact sustainability initiative

Lenzing Group has been awarded platinum status in the CSR rating from EcoVadis. This comprehensive assessment covers the four key practices of corporate social responsibility: the environment, fair working conditions and human rights, ethics and sustainable procurement.

This is the second time that EcoVadis, a leading international provider of sustainability ratings for businesses, has awarded platinum status to Lenzing for its sustainability performance. As a result, Lenzing ranks among the world’s top 1 percent of companies in its sector that are rated by EcoVadis.

In line with its “Naturally positive” sustainability strategy, the Lenzing Group has set ambitious targets in each of its core strategic areas, aimed at bolstering its capacity to move from a linear to a circular model. Lenzing reports the corresponding implementation measures and the progress it has made in its annual sustainability report. This high level of accountability and transparency was particularly praised in the assessment by EcoVadis. The rating provider also highlighted Lenzing’s comprehensive measures to reduce air pollution, wastewater and greenhouse gases, in addition to its provision of skills development training and health care programs for staff members.

Partnerships for systemic change
Lenzing forges strategic partnerships with various stakeholders to meet its ambitious climate and sustainability targets and drive forward systemic change in the textile and nonwoven industries. This is why Lenzing, as one of 15,000 companies worldwide, joined the United Nations Global Compact. As a member, Lenzing is committed to upholding human rights, respecting the rights of employees and their representatives, protecting the environment, enabling fair competition and combating corruption.

The European Pultrusion Technology Association (EPTA) has published a report from its latest conference, which focuses on advances in sustainability and recycling.

More than 130 professionals from the global pultrusion community gathered at the 16th World Pultrusion Conference in Paris on 5-6 May 2022. Organised by EPTA in collaboration with the American Composites Manufacturers Association (ACMA), the event featured 25 international speakers sharing insight on market trends, developments in materials, processing and simulation technologies, and innovative pultruded applications in key markets such as building and infrastructure, transportation and wind energy.

‘Bio-pultrusion’:  
Composites based on natural fibres offer a number of benefits, including low density and high specific strength, vibration damping, and heat insulation. The German Institutes for Textile and Fiber Research Denkendorf (DITF) are developing pultrusion processes using bio-based resins and natural fibres. Projects include the BioMat Pavilion at the University of Stuttgart, a lightweight structure which combines ‘bamboo-like’ natural fibre-based pultruded profiles with a tensile membrane.

Applications for recycled carbon fibre (rCF):
The use of rCF in composite components has the potential to reduce their cost and carbon footprint. However, it is currently used to a limited extent since manufacturers are uncertain about the technical performance of available rCF products, how to process them, and the actual benefits achievable. Fraunhofer IGCV is partnering with the Institute for Textile Technology (ITA) in the MAI ÖkoCaP project to investigate the technical, ecological and economic benefits of using rCF in different industrial applications. The results will be made available in a web-based app.

Circularity and recycling:
The European Composites Industry Association (EuCIA) is drafting a circularity roadmap for the composites industry. It has collaborated with the European Cement Association (CEMBUREAU) on a position paper for the EU Commission’s Joint Research Centre (JRC) which outlines the benefits of co-processing end-of-life composites in cement manufacturing, a recycling solution that is compliant with the EU’s Waste Framework Directive and in commercial operation in Germany. Initial studies have indicated that co-processing with composites has the potential to reduce the global warming impact of cement manufacture by up to 16%. Technologies to allow recovery of fibre and/or resin from composites are in development but a better understanding of the life cycle assessment (LCA) impact of these processes is essential. EuCIA’s ‘circularity waterfall,’ a proposed priority system for composites circularity, highlights the continued need for co-processing.

Sustainability along the value chain:
Sustainability is essential for the long-term viability of businesses. Resin manufacturer AOC’s actions to improve sustainability include programmes to reduce energy, waste and greenhouse gas emissions from operations, the development of ‘greener’ and low VOC emission resins, ensuring compliance with chemicals legislation such as REACH, and involvement in EuCIA’s waste management initiatives. Its sustainable resins portfolio includes styrene-free and low-styrene formulations and products manufactured using bio-based raw materials and recycled PET.

• Assessment of current business situation positive
• Future expectations subdued
• Investment climate friendly
• Varied expectations for application industries
• GRP is still a growth driver
• Composites Index is now positive

This is the 18th time that Composites Germany has identified the latest performance indicators for the fibre-reinforced plastics market. The survey covered all the member companies of the three major umbrella organisations of Composites Germany: AVK, Leichtbau Baden-Württemberg and the VDMA Working Group on Hybrid Lightweight Construction Technologies.
As before, to ensure a smooth comparison with the previous surveys, the questions in this half-yearly survey have been left unchanged. Once again, the data obtained in the survey is largely qualitative and relates to current and future market developments.

You can read more about it in the attached document.

• Results of experiments conducted by the University of California’s prestigious Scripps Institution of Oceanography in San Diego provide further scientific proof that LENZING™ fibers offer an effective substitute to synthetic fibers that are part of the pressing problem of plastic pollution in our oceans.

Lenzing/San Diego – The Lenzing Group, a world-leading provider of wood-based specialty fibers, has received further scientific proof of the biodegradability of its fibers. In a study published in October 2021 , scientists from the prestigious academic research institute Scripps Institution of Oceanography (SIO) at the University of California, San Diego confirmed that wood-based cellulosic fibers biodegrade in the ocean within a short period of time at the end of their life cycle, making them a better alternative to fossil-based fibers. The research was the result of an independent project trying to understand the “end-of-life” scenarios for textiles and nonwovens discarded in the environment.

SIO has a global reputation for being one of the oldest, largest and most important marine research centers worldwide. In this study, SIO compared the degradation processes of nonwovens made from fossil-based synthetic materials such as polyester with those of cellulosic materials such as Lenzing’s wood-based lyocell, modal and viscose fibers in specific scenarios – under various real oceanic conditions and controlled aquaria conditions. The results of these experiments are striking: while wood-based cellulosic fibers fully biodegraded within 30 days, the fossil-based fibers tested were practically unchanged after more than 200 days.

The biodegradability of LENZING™ fibers was also tested in the laboratory of Organic Waste Systems (OWS) in Belgium – one of the world's leading companies in biodegradability and compostability testing – which showed data confirmed by those found with the real-life measurements at Scripps. The OWS assessment was conducted in accordance with applicable international standards and reflects relevant natural and artificial conditions in which biodegradation can occur. Certificates from the certification organization TÜV Austria show that LENZING™ fibers rapidly biodegrade in all test environments (soil, industrial composting, home composting, fresh water and marine water) within the time frames set by the applicable standards.

Lenzing also welcomes the EU’s targeted measures to combat plastic waste in general, such as those relating to the single-use plastic directive (EU) 2019/9043. In its recently adopted guidelines for implementing the directive, the EU Commission stipulates the specific products that fall under this category, which is a well-needed effort to provide clarity to the EU member states for their joint campaign against environmental pollution from plastic waste. Lenzing’s wood-based, biodegradable cellulosic fibers can be part of a sustainable and innovative solution to this man-made problem that will continue to grow. As of July 2021, the single-use plastic directive sets out standardized labelling requirements for certain products, either on packaging or on the products themselves, which include plastic-based feminine hygiene products and wet wipes for body care or household use. This is a start to tackle the problem: educate the consumer and offer alternative materials with better circularity.

There has been a sharp rise in demand for organic cotton products. Compared to conventionally grown cotton, the cultivation of organic cotton requires the renunciation of genetically modified seeds, chemical pesticides or fertilisers. Nevertheless, genetic modifications are repeatedly found in textiles that are falsely labelled with organic claims. Often, available certification systems are not backed up by lab testing. At best, they only take random seed samples. Textile testing specialist, Hohenstein, has developed an assessment method specifically for cotton. This new DNA analysis method makes it possible to ascertain the amount of genetically modified cotton contained in products. This is good news for textile industry stakeholders who will be on the safe side in terms of quality control and labelling of organic cotton products.

First step: qualitative screening and identification. Second step: quantification of genetically modified cotton.
For qualitative screening, Hohenstein experts had developed molecular biological detection systems to make clear yes/no statements about genetically modified cotton. Testing can be applied to all kinds of materials, from raw cotton to chemically untreated yarns and fabrics. In addition, Hohenstein is one of only a few laboratories in the world accredited to test for GMOs in accordance with the ISO/IWA 32:2019 protocol. Its method provides reliable evidence of the presence or exclusion of genetic modification in cotton textile precursors.

Once qualitative proof of genetic modification is obtained, Hohenstein experts begin quantifying the type and extent of the genetic modifications. To do this, they use DNA analysis to search for different cotton lines known to contain genetic alterations and quantify the proportion. Only by pinpointing individual genetic modifications and quantifying the extent of modification is it possible to provide precise information on whether there is an extremely small proportion of contamination, or whether larger proportions of GMOs have been mixed in. This offers clear benefits to manufacturers, brand owners and retailers when it comes to supply chain transparency and fraud prevention.