PURPOSE: To obtain the titled fiber having the feeling of ultrafine multi-filament, by extruding molten thermoplastic polymer to form a filament having a solid cross-section and composed of a plurality of thick parts connected with each other through thin parts, cooling and solidifying the extruded filament and drawing the filament under heating.
CONSTITUTION: A thermoplastic polymer is extruded through a melt-spinning nozzle to form a filament having a solid cross-section and composed of a plurality of thick parts A connected with each other through thin parts B. The filament is temporarily cooled and solidified at or below glass transition temperature, introduced into a hot fluid zone through a collection guide and drawn in the zone under heating.
| JPH1037021 | MODIFIED POLYESTER FIBER AND ITS PRODUCTION |
| JPS60134023 | DIRECT SPIN-DRAW PROCESS FOR POLYESTER FIBER |
| JPS5969358 | GUIDE FOR CONTROLLING THREAD PATH |
SHODA SHINICHI
YOKOHAMA HISAYA
| JPS60209012A | 1985-10-21 | |||
| JPS6040522A | 1985-03-02 | |||
| JPS60259672A | 1985-12-21 | |||
| JPS61215714A | 1986-09-25 |