RECOVERY METHOD FOR POLYESTER FABRIC WASHING WASTE LIQUID

The present invention belongs to the field of waste fabric recycling. Disclosed is a recovery method for polyester fabric washing waste liquid. The recovery method of the present invention comprises: reacting a polyester fabric washing waste liquid with a catalyst and then filtering to remove a dye precipitate, thereby obtaining a polyester fabric washing agent. In the method provided by the present invention, dye which is extracted from polyester fabrics and is dissolved in a washing agent can react with a catalyst to form a precipitate and said dye is separated from the polyester fabric washing agent, thereby recycling polyester fabric washing waste liquid. The present invention can be used for recycling waste fabrics such as automotive interiors, home textiles, clothing, building materials, and industrial consumer products.

» Number: WO2025160812A1 (A1)

» Publication Date: 07/08/2025

» Applicant: JIANGSU JIOCUI ADVANCED FIBER MATERIAL RES INSTITUTE CO LTDâ??[CN]

» Inventor: ZHOU JIALIANGâ??[CN]; WEI YANHONGâ??[CN] (5)

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