Upcoming ITMAconnect Webinar: Sustainable Nonwovens: From Transformational Technology to a Net Zero Future Webinar

Sustainable Nonwovens: From Transformational Technology to a Net Zero Future Webinar

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Nonwovens at the Forefront of Recycling

By ITMA Organiser, 30 October 2024

 

Nonwovens manufacturers were among the very first textile recyclers, and in the next few years their services will be needed more than ever.

 

The European Union is introducing a ban on the landfilling or incineration of post-consumer clothing waste beginning in January 2025 and will impose an extended producer responsibility (EPR) scheme on brands and manufacturers to pay for its collection and disposal. The European Commission is further calling for all textile products on the EU market to be durable, repairable or recyclable – and to contain a significant percentage of recycled fibres – by 2030. Similar legislation is expected to follow elsewhere in the world.

 
Second life
 

 

The nonwovens industry already mechanically recycles a lot of textile waste into second life products such as insulation for the automotive and construction industries, industrial wipes and mattress covers, but to date this has been largely from regenerated mill waste fibres.

 

Mill waste fibres are comparatively pure compared to post-consumer apparel waste, where many finished articles are often based on blended fibres – most commonly of polyester and cotton – with elastanes, chemical finishes and many other impurities such as buttons, zips and linings to be removed before a bale of fibres can be shipped for reprocessing.

 

As a consequence, today’s mill waste is going to be much more valuable going forward, as the apparel brands look for recycled feedstocks that can be incorporated into their clothing ranges that are produced by the conventional routes of yarn spinning, followed by weaving or knitting.

 
Short fibres
 

The successful spinning and further processing of recycled staple fibres in conventional textile processing, however, is very much dependent on their purity and length, and short fibres are always problematic. Bales of virgin cotton, for example, have an average short-fibre content of 25%, but short-fibre content in recycled yarn waste from mills is on average 47%, which already makes turning it into new yarns for spinning challenging.

 

Post-consumer waste has a much higher percentage of short staple fibres, amplifying the problem.

 

At best, it is estimated that textile apparel containing 40% post-consumer waste fibres is the current limit to be achieved in staple fibre blends with virgin fibres for spinning – nonwovens manufacturers are already achieving 100% recycled content in many high-value products.

 

Key ITMA 2023 exhibitors on ITMAconnect specialising in mechanical recycling systems for nonwovens production include, among others, Andritz Laroche, Balkan, Bonino, Dell’Orco and Villani, Masias and Temsan.

 

 

Mechanical recycling, however, still has limitations in terms of the type of fibres that can be accommodated and the volumes that will need to be achieved to meet legislative requirements.

 

As consequence, chemical recycling is now gaining momentum as a huge new industry sector, especially targeting polyester, as the predominant synthetic fibre employed in textiles.

 

In this area, it is notable that only a handful of companies are working to regenerate pure chemical polymers, rather than taking fibres right back to the chemical monomers they are composed of, for use as new feedstocks.

 

Synthetic waste polyester and other synthetic fibre waste can be turned back into monomers by four major methods – methanolysis, glycolysis, hydrolysis and enzymatic recovery.

 

Many major nonwovens manufacturers using synthetic fibres have been swift to recognise this trend and opted to become ISCC PLUS certified as a means of proving their achievements in accommodating recycled content – in the form of initial feedstock chemicals – in their products.

 

Explore more about nonwovens and sustainability in the upcoming ITMAconnect live webinar!

 

Nonwovens Recycling for a Sustainable Future

Date: 14 November 2024

Time: 2.30pm - 3.30pm CET

 

The webinar is open to all.​

 

 

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