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公开(公告)号:US20220380941A1
公开(公告)日:2022-12-01
申请号:US17761240
申请日:2020-09-17
发明人: Simone Haslinger , Yingfeng Wang , Eugenia Smirnova , Michael Hummel , Herbert Sixta , Marja Rissanen
摘要: Colored lyocell type fibers comprising respun coloured recycled fibers and method of producing the same. According to the method a raw-material of colored recycled textile fibers is provided and dissolved in an ionic liquid to provide a spinning dope. By spinning the dope using dry jet-wet spinning colored respun textile fibers can be manufactured. The invention provides for the simultaneous recycling of cellulose fibers and dyes from dyed cotton waste in the form of dyed lyocell fibers.