发明名称 |
Poly(trimethylene terephthalate) modified cross-section yarn |
摘要 |
The present invention is to provide a polytrimethylene terephthalate fiber having a trilobal type modified cross-section, composed of 95 mol % or more of trimethylene terephthalate repeating units and 5 mol % or less of other ester repeating units to have an intrinsic viscosity in a range from 0.7 to 1.3 (dl/g), wherein the outer periphery of the trilobal type cross-section consists of outwardly convex sections or of outwardly convex section and straight sections. According to the inventive method, it is possible to produce the above-mentioned fiber of the modified cross-section in an industrially stable manner while minimizing the adhesion of polymer scum to the spinning orifice or the contamination thereof to suppress the generation of fluff or yarn breakage.
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申请公布号 |
US6620505(B1) |
申请公布日期 |
2003.09.16 |
申请号 |
US20020069373 |
申请日期 |
2002.02.25 |
申请人 |
ASAHI KASEI KABUSHIKI KAISHA |
发明人 |
ABE TAKAO;AZUMA YOICHIRO;KOYANAGI TADASHI |
分类号 |
D01D5/253;D01F6/62;(IPC1-7):D01F6/00;B22D28/00;B27B17/00 |
主分类号 |
D01D5/253 |
代理机构 |
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地址 |
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