Title:
PRODUCTION OF SPECIAL POLYESTER FILAMENT YARN
Document Type and Number:
Japanese Patent JPS55148213
Kind Code:
A
Abstract:
PURPOSE: To obtain a special filament yarn having uneven exhaustion, heat shrinkage, and thickness, in the long direction, and uniform mixing state in any cross- section in the long direction as a whole, by drawing an undrawn polyethylene terephthalate yarn which is heat-treated under specific conditions.
CONSTITUTION: An undrawn polyethylene terephthalate filament yarn is heat- treated at 45W65°C, preferably 45W55°C, under a tension of 0.5W0.8g/d, preferably 0.5W0.6g/d, and immediately drawn at 130W200°C, preferably 140W180°C, at a draw ratio of 0.8W1.15 times the natural draw ratio.
EFFECT: Reduced waxy and plane touch unique to synthetic fibers, scarcely causing cohesion or breakage of filaments even in the false-twisting step.
Inventors:
NAGATA MICHIO
MORIOKA MASAO
TAGAWA KOUJI
ITANI TAKUMI
OKADA OSAMU
MORIOKA MASAO
TAGAWA KOUJI
ITANI TAKUMI
OKADA OSAMU
Application Number:
JP5614179A
Publication Date:
November 18, 1980
Filing Date:
May 07, 1979
Export Citation:
Assignee:
KANEBO LTD
KANEBO GOSEN KK
KANEBO GOSEN KK
International Classes:
D02J1/22; D01F6/62; (IPC1-7): D01F6/62
Previous Patent: JPS55148212
Next Patent: YARN OF MIXED SEA-ISLAND TYPE CONJUGATE FIBER AND ITS PRODUCTION AND DEVICE THEREFOR
Next Patent: YARN OF MIXED SEA-ISLAND TYPE CONJUGATE FIBER AND ITS PRODUCTION AND DEVICE THEREFOR