Easily dividable split yarn and production thereof

Abstract

PURPOSE: To obtain the subject fiber useful for artificial leathers, etc., giving a draping property, etc., thereto, comprising two kinds of thermoplastic polymers having different melt-viscosities, by extruding the component having a large melt-viscosity toward the center of the component having a small melt-viscosity in a severally divided state the a specific ratio. CONSTITUTION: The objective split conjugate fiber comprises two kinds of thermoplastic polymers A and B, and the polymer A having a high melt-viscosity is extruded toward the center of the polymer B having a low melt-viscosity from the direction of the normal line in a state divided into 4-8 divisions in an A/B extrusion ratio of 70/30-90/10 to provide the objective fiber in which the component A occupies 70-90% of the whole area of the cross section thereof and also 95-100% of all length of the circumference thereof and which can be divided into 4-8 convex lens-like divisions in the cross section. COPYRIGHT: (C)1992,JPO&Japio

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    CN-103938286-AJuly 23, 2014南通美铭锦纶有限公司一种裂片型超细旦复合纤维
    US-2011159235-A1June 30, 2011San Fang Chemical Industry Co., Ltd.Composite fiber having elastomer and method for making the same, and a substrate having the composite fiber and method for making the same
    US-9303342-B2April 05, 2016San Fang Chemical Industry Co., Ltd.Composite fiber having elastomer and method for making the same, and a substrate having the composite fiber and method for making the same