Title:
METHOD FOR PRODUCING LONG FIBER NONWOVEN FABRIC
Document Type and Number:
WIPO Patent Application WO/2011/070999
Kind Code:
A1
Abstract:
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.
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Inventors:
NAKANO, Yohei (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
中野洋平 (〒58 滋賀県大津市園山１丁目１番１号 東レ株式会社 滋賀事業場内 Shiga, 〒5208558, JP)
中野洋平 (〒58 滋賀県大津市園山１丁目１番１号 東レ株式会社 滋賀事業場内 Shiga, 〒5208558, JP)
Application Number:
JP2010/071790
Publication Date:
June 16, 2011
Filing Date:
December 06, 2010
Export Citation:
Assignee:
TORAY INDUSTRIES, INC. (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 66, 〒1038666, JP)
東レ株式会社 (〒66 東京都中央区日本橋室町２丁目１番１号 Tokyo, 〒1038666, JP)
NAKANO, Yohei (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
東レ株式会社 (〒66 東京都中央区日本橋室町２丁目１番１号 Tokyo, 〒1038666, JP)
NAKANO, Yohei (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
International Classes:
D04H3/00; D01D5/098; D01F6/76; D04H3/14
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