Title:
HIGH-VELOCITY SPINNING OF POLYESTER
Document Type and Number:
Japanese Patent JPS6039410
Kind Code:
A
Abstract:
PURPOSE: To obtain extremely thin yarn having low single filament fineness of wound yarn stably, free from end breakage, by spinning a polyester prepared by using only a sulfur acid compound as a catalyst at high velocity.
CONSTITUTION: For example, slurry of terephthalic acid and ethylene glycol is polycondensed in the presence of a sulfur acid compound (e.g., 5-sulfoisophthalic acid, etc.) as a catalyst. The prepared polyester is spun at high velocity at ≥2,500m/min, preferably at ≥4,500m/min, to give extremely thin yarn having ≤5 denier, preferably ≤1 denier single filament fineness of wound yarn.
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Inventors:
ICHIHASHI EIJI
TSUJIMOTO KEIZOU
MATSUNAGA NOBUHIRO
TSUJIMOTO KEIZOU
MATSUNAGA NOBUHIRO
Application Number:
JP14707183A
Publication Date:
March 01, 1985
Filing Date:
August 11, 1983
Export Citation:
Assignee:
NIPPON ESTER CO LTD
International Classes:
D01F6/62; C08G63/00; C08G63/82; D01D5/08; (IPC1-7): C08G63/30; D01D5/08; D01F6/62
Attorney, Agent or Firm:
Kodama Yuzo
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