发明名称 |
Acrylic fiber having excellent durability and dyeability and process for preparation thereof |
摘要 |
Disclosed is an acrylic fiber composed of an acrylonitrile homopolymer or copolymer whose surface consists of particulate and/or microfibrillar structures having a width of 0.01 to 0.5 mu m and a length of 0.05 to 10 mu m and fibrillar structures formed by aggregation of the particulate and/or microfibrillar structures and having a width of 0.1 to 10 mu m and a length of at least 50 mu m. The fiber is prepared by spinning a dope of an acrylonitrile homopolymer or copolymer in a solvent at a draft ratio of at least 5 into a coagulating bath comprising a solvent and a coagulant and having a composition such that a skin layer is not formed on the coagulated fiber; taking up the coagulated fiber from the coagulating bath so that the retention time in the coagulating bath is within 60 seconds; and then drawing the fiber in a drawing bath comprising a solvent and a coagulant and having a coagulating property to the dope and a composition such that a skin layer is not formed on the fiber.
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申请公布号 |
US4663232(A) |
申请公布日期 |
1987.05.05 |
申请号 |
US19850728276 |
申请日期 |
1985.04.29 |
申请人 |
ASAHI KASEI KOGYO KABUSHIKI KAISHA |
发明人 |
KAMIDE, KENJI;HONDA, YUTAKA;KAJITA, SHUJI |
分类号 |
D01D5/06;D01F6/18;D01F6/38;D02J1/22;(IPC1-7):D02G3/00 |
主分类号 |
D01D5/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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