发明名称 |
METHOD FOR PRODUCING LONG FIBER NONWOVEN FABRIC |
摘要 |
Provided is a method for producing a long fiber nonwoven fabric which uses polyphenilene sulfide exhibiting excellent spinnability as the main component, and which involves a simplified step in which heat treatment, which is performed for the purpose of having dimensional stability against heat, is not performed in the step after a nonwoven fiber web was formed. The method for producing a long fiber nonwoven fabric involves: a step (a) for obtaining a long fiber by melting a resin which has polyphenilene sulfide as the main component, and by pulling and stretching a thread, which was frozen and solidified after being ejected through a spinneret, at a spinning speed of 3,000m/min or more by means of an ejector, while heating said thread up to the ejector outlet; a step (b) for forming the long fiber into a nonwoven fiber web by collecting the long fiber on a moving net; and a step (c) for thermally adhering the resulting nonwoven fiber web. |
申请公布号 |
WO2011070999(A1) |
申请公布日期 |
2011.06.16 |
申请号 |
WO2010JP71790 |
申请日期 |
2010.12.06 |
申请人 |
TORAY INDUSTRIES, INC.;NAKANO, YOHEI;YAKAKE, YOSHIKAZU |
发明人 |
NAKANO, YOHEI;YAKAKE, YOSHIKAZU |
分类号 |
D01D5/098;D01F6/76;D04H3/00 |
主分类号 |
D01D5/098 |
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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