发明名称 |
POLYURETHANE ELASTIC FIBER |
摘要 |
<p>An object of the present invention is to provide polyurethane elastic fibers that, when dyed with acidic dyes, exhibit a deep dyeing property and high fastness equivalent to those of polyamide fibers used as a companion material in mixed knitted and woven fabrics, while also exhibiting excellent spinning stability. The inventive polyurethane elastic fibers comprise 0.2 wt%-10 wt% of a polymer with a maleimide structure comprising an isobutylene unit represented by the following formula (I) and a maleimide unit represented by the following formula (II) (wherein R 1 represents a C 2-6 straight-chain or branched alkylene group, and R 2 and R 3 may be the same or different and each represents a C 1-6 straight-chain or branched alkyl group), have a Blue L value of 20-50 after laundering according to JIS L0844 A2 for dyeing of a single-loop tube-knit fabric with a specific blue acidic dye, and have a staining degree of grade 3.5 or greater on nylon fabrics.</p> |
申请公布号 |
EP2157215(A1) |
申请公布日期 |
2010.02.24 |
申请号 |
EP20080777147 |
申请日期 |
2008.06.11 |
申请人 |
ASAHI KASEI FIBERS CORPORATION |
发明人 |
KOJIMA, JUNICHI;IWANAMI, TAISUKE |
分类号 |
D01F6/94;C08F8/32;D03D15/00;D03D15/08 |
主分类号 |
D01F6/94 |
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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