Title:
HYGROSCOPIC FIBRE, AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2011/122272
Kind Code:
A1
Abstract:
Disclosed is a hygroscopic fibre which is a fibre comprising polyamide 56 resin, and has a ΔMR of at least 3.0%. Further disclosed is a method for manufacturing a polyamide 56 resin fibre by a direct spinning-drawing method in which: a polyamide 56 resin discharged through a spinneret is cooled and solidified by cooling air; a spinning oil is deposited thereon and the fibre is stretched; and the fibre is taken up. The disclosed manufacturing method satisfies the following conditions: (1) The spinneret discharge line rate is between 14m/min and 30m/min inclusive; (2) The product of the haul-off speed and the stretch ratio is between 3900 and 4500 inclusive. Thus provided are a high added value hygroscopic fibre which has high moisture absorptivity without losing the strength, chemical resistant, and heat resistant characteristics of polyamides.
Inventors:
ITOU, Kenji (Toray Industries Inc., 1-1, Horikoshi 1-chome, Nishi-ku, Nagoya-sh, Aichi 66, 〒4518666, JP)
伊藤憲司 (〒66 愛知県名古屋市西区堀越１丁目１番１号 東レ株式会社 愛知工場内 Aichi, 〒4518666, JP)
TAKAGI, Kentaro (Toray Industries Inc., 1-1, Horikoshi 1-chome, Nishi-ku, Nagoya-sh, Aichi 66, 〒4518666, JP)
伊藤憲司 (〒66 愛知県名古屋市西区堀越１丁目１番１号 東レ株式会社 愛知工場内 Aichi, 〒4518666, JP)
TAKAGI, Kentaro (Toray Industries Inc., 1-1, Horikoshi 1-chome, Nishi-ku, Nagoya-sh, Aichi 66, 〒4518666, JP)
Application Number:
JP2011/055454
Publication Date:
October 06, 2011
Filing Date:
March 09, 2011
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)
ITOU, Kenji (Toray Industries Inc., 1-1, Horikoshi 1-chome, Nishi-ku, Nagoya-sh, Aichi 66, 〒4518666, JP)
伊藤憲司 (〒66 愛知県名古屋市西区堀越１丁目１番１号 東レ株式会社 愛知工場内 Aichi, 〒4518666, 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)
ITOU, Kenji (Toray Industries Inc., 1-1, Horikoshi 1-chome, Nishi-ku, Nagoya-sh, Aichi 66, 〒4518666, JP)
伊藤憲司 (〒66 愛知県名古屋市西区堀越１丁目１番１号 東レ株式会社 愛知工場内 Aichi, 〒4518666, JP)
International Classes:
D01F6/60; D03D15/00
Claims: