New solution for polycotton recycling - sportstextiles: Lea SportsTextiles

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New solution for polycotton recycling

07/02/2025
Dutch chemicals company Avantium has announced having patented a method of recycling polycotton waste. The technology was developed with the University of Amsterdam’s Industrial Sustainable Chemistry group, headed by Gert-Jan Gruter, Avantium’s chief technology officer. It is presented in “Polycotton waste textile recycling by sequential hydrolysis and glycolysis”, published in Nature Communications last week.

Avantium’s Dawn biorefinery technology converts bioplastics into glucose and lignin, and was tested with polyester/cotton blend end-of-life textiles at the company’s pilot plant in Delfzijl. Cotton cellulose was successfully hydrolised into glucose. The solid polyester residue was then depolymerised by glycolysis.

This solution not only provides feedstock for the company’s own FDCA and PEF technology, but also marks a crucial step towards achieving a circular economy, commented Mr Gruter.


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