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公开(公告)号：US11168196B2
公开(公告)日：2021-11-09
申请号：US16471001
申请日：2017-12-20
发明人： Simone Haslinger , Michael Hummel , Herbert Sixta
IPC分类号： C08J11/08
摘要： According to an example aspect of the present invention, there is provided a method of separating cellulose and polyester from a material comprising a blend of cellulose and polyester, said method comprising the steps of mixing the material comprising a blend of cellulose and polyester with a first portion of superbase-based ionic liquid to dissolve a first portion of cellulose and form a first cellulose solution and a first residue comprising polyester, removing the first residue comprising polyester from the first cellulose solution, and directing the first cellulose solution to one or more further processing steps.
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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.
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公开(公告)号：US20200079925A1
公开(公告)日：2020-03-12
申请号：US16471001
申请日：2017-12-20
发明人： Simone Haslinger , Michael Hummel , Herbert Sixta
IPC分类号： C08J11/08
摘要： According to an example aspect of the present invention, there is provided a method of separating cellulose and polyester from a material comprising a blend of cellulose and polyester, said method comprising the steps of mixing the material comprising a blend of cellulose and polyester with a first portion of superbase-based ionic liquid to dissolve a first portion of cellulose and form a first cellulose solution and a first residue comprising polyester, removing the first residue comprising polyester from the first cellulose solution, and directing the first cellulose solution to one or more further processing steps.
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