Methods for recycling cotton and polyester fibers from waste textiles
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United States of America Patent
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Nov 23, 2021
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N/A
app pub date -
Nov 26, 2019
filing date -
Jan 12, 2018
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Abstract
Systems and methods are provided that involve a subcritical water reaction to recycle the cellulose and polyester components of waste cotton and cotton/polyester blend textiles that would otherwise be discarded or disposed of. Specifically, the disclosed methods provide for treatment of the waste textiles to produce advanced materials including cellulose and terephthalic acid (TPA) with a low environmental impact. The cellulose and TPA that are produced are of a high quality allowing for production of regenerated cellulose and regenerated polyethylene terephthalate (PET) suitable for fiber spinning and textile applications.
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