Production of differently shrunk blended filaments

Abstract

PURPOSE: To provide various differently shrunk blended filaments by only the change of set conditions, by performing the spinning, drawing and heat-treating of filaments with two adjacent spinning drawing equipments to form two kinds of the filaments having different heat shrinkage degrees therebetween, doubling the filaments and subsequently subjecting the doubled filaments to a fluid interlacing treatment to blend the filaments. CONSTITUTION: The spinning, drawing and heat treatment of filaments are carried out with two adjacent spinning drawing equipments under different conditions to provide two kinds of the filaments having different heat shrinkage degrees (boiling water shrinkage degrees) therebetween. The two kinds of the filaments are doubled and subsequently subjected to an interlacing treatment with a fluid to blend the filaments. Either one or several ones of the spinning, drawing and heat-treating processes are suitably changed from each other to provide filaments having different heat shrinkage degrees therebetween, which are doubled and subsequently blended. COPYRIGHT: (C)1989,JPO&Japio

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Patent Citations (2)

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    CN-105862166-AAugust 17, 2016东华大学, 上海凯赛生物技术研发中心有限公司, 凯赛生物产业有限公司生物质尼龙56纤维/pbt纤维的fdy/poy异收缩混纤丝及其制备方法
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