Title:
POLYESTER FIBER AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2002/027081
Kind Code:
A1
Abstract:
A polyester fiber which has physical properties such as a double refraction $g(D)n of up to 0.07, an elongation after fracture of at least 80%, and a specific weight of at least 1.35 g/cm?3¿ and is suitable for a draw-texturing raw yarn, and which is produced by cooling polyester filaments melt-spun from spinnerets to up to a glass transition temperature by a cooling air while filaments are being taken up by a take-up roller at at least 3000 m/min, and by heating them to above a glass transition temperature while they are being wound up from the take-up roller into a package by a winding device.
Inventors:
IWADE TAKASHI (JP)
FUJII TAKASHI (JP)
YAMASHITA MASAMICHI (JP)
NISHIOJI MAKOTO (JP)
KIKUTANI TAKESHI (JP)
FUJII TAKASHI (JP)
YAMASHITA MASAMICHI (JP)
NISHIOJI MAKOTO (JP)
KIKUTANI TAKESHI (JP)
Application Number:
PCT/JP2001/008506
Publication Date:
April 04, 2002
Filing Date:
September 28, 2001
Export Citation:
Assignee:
TORAY ENG CO LTD (JP)
IWADE TAKASHI (JP)
FUJII TAKASHI (JP)
YAMASHITA MASAMICHI (JP)
NISHIOJI MAKOTO (JP)
KIKUTANI TAKESHI (JP)
IWADE TAKASHI (JP)
FUJII TAKASHI (JP)
YAMASHITA MASAMICHI (JP)
NISHIOJI MAKOTO (JP)
KIKUTANI TAKESHI (JP)
International Classes:
D01D5/092; D01D10/02; D01F6/62; D02G1/02; D02J1/22; (IPC1-7): D01F6/62; D01D10/02
Foreign References:
| US4156071A | 1979-05-22 | |||
| JPS5430925A | 1979-03-07 | |||
| US4415521A | 1983-11-15 |
Attorney, Agent or Firm:
Ogawa, Shin-ichi (Noguchi & Saika International Patent
Office Akiyama Building, 22-13, Toranomon 1-chom, Minato-ku Tokyo, JP)
Download PDF: