Polyester recycling preserves spandex

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Chinese researchers report a selective chemical route that recovers polyester while retaining stretch fibres in blended textile waste

SHANGHAI — Researchers at Donghua University have developed a chemical recycling process that claims to selectively break down polyester in blended textile waste while retaining spandex and cotton fibres.

The peer-reviewed study, published in the Journal of Hazardous Materials, examines a solvent system combining sulfolane, ethylene glycol and potassium hydroxide.

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