| 摘要 |
PURPOSE:To obtain the subject fiber having excellent HARI (stretch) and KOSHI (resilience) and randomly including finely divided parts having fine fuzz along fiber axis, containing polyester mainly composed of ethylene terephthalate unit and streak-like dispersion forming substance immiscible with said polyester. CONSTITUTION:99.9-90 pts.wt. polyester mainly composed of ethylene terephthalate repeating unit is blended with 0.1-10 pts.wt. streak-like dispersion forming substance immiscible with said polyester (e.g. metal salt of organic sulfonic acid) and subjected to spinning by extruding from spinning nozzle in molten state, then heated and drawn, thus subjected to heat-set to afford the aimed improved polyester fiber having finely divided parts randomly existing in the direction of fiber axis of single fiber and fine fuzzes on said divided parts. |
