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1. (WO2018144575) DECOLORIZATION OF POST-CONSUMER FIBERS

Pub. No.:    WO/2018/144575    International Application No.:    PCT/US2018/016190
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Thu Feb 01 00:59:59 CET 2018
IPC: C11D 3/075
D06L 4/15
D06L 4/13
C09D 9/04
C11D 1/72
Applicants: GEO-TECH POLYMERS, LLC
Inventors: BOKKA, Sreevalli
WHALEY, Ronald L.
TACKETT, Stephen Craig
Title: DECOLORIZATION OF POST-CONSUMER FIBERS
Abstract:
Methods, compositions, single phase aqueous solutions, process mixtures, and kits are provided relating to decolorizing post-consumer fibers, e.g., from carpet pile, using a single- phase aqueous solution. For example, a method of decolorizing post-consumer fibers may include providing the single phase aqueous solution. The single phase aqueous solution may include water, a stable peroxygen composition, and a surfactant composition. The method may include providing the post-consumer fibers comprising a colorant. The method may include contacting the single phase aqueous solution and the post-consumer fibers to form a process mixture under conditions effective to provide a decolorized portion of the post-consumer fibers.