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    COATED COMPOSITE FIBER CONSISTING OF THREE LAYERS
    42.
    发明专利
    COATED COMPOSITE FIBER CONSISTING OF THREE LAYERS 失效

    公开(公告)号：JPS55158330A

    公开(公告)日：1980-12-09

    申请号：JP6379079

    申请日：1979-05-25

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAMOTO MASAHARU ,  YANAGIDA SHIGERU ,  NAKAGAWA KIYOSHI

    IPC: D01F8/04 ,  D01F8/14

    Abstract: PURPOSE:To suppress the hight transmission as a whole, and to eliminate the deterioration of a modifier while preventing the reed abrasion, by forming the outermost layer with a low TiO2 content, the middle layer with a higher TiO2 content and the core layer containing a modifier into a three-layer concentric composite fiber. CONSTITUTION:A coated composite fiber comprising the outermost layer A, the middle layer B and the core layer concentrically, wherein the layers A and B consist of a fiber-forming synthetic polymer, e.g. polyethylene terephthalate, and the layer C consists of a synthetic polymer composition, e.g., a polyolefin containing a modifier, e.g. an antistatic agent, a flame-retardant, etc. The TiO2 contents in the layers A and B (wt%) satisfy the ranges 0

    SPLITTABLE CONJUGATE FIBER
    44.
    发明专利
    SPLITTABLE CONJUGATE FIBER 失效

    公开(公告)号：JPS5571817A

    公开(公告)日：1980-05-30

    申请号：JP14227978

    申请日：1978-11-20

    Applicant: TORAY INDUSTRIES

    Inventor： SATOU YOSHIAKI ,  ARAI HAJIME ,  NAKAGAWA KIYOSHI

    IPC: D01F8/14 ,  D01F8/12

    Abstract: PURPOSE:Conjugate fibers in which a specific and readily soluble copolyester and a polyamide are combined so that they are hardly releasable but readily splittable by the action of an alkali. CONSTITUTION:Copolyester component A which consists of more than 2.4 mol% of ethylene 5-sodiumsulfoisophthalate and more than 70 mol% of ethylene terephthalate is used as the splitting (readily soluble in a solvent) component and a polyamide as nylon 6 is used as component B which is insoluble in the solvent and split. In the cross section of fibers, the component B is divided into plural sections with the component A. EFFECT:The resulting conjugate fibers are free from fluff and yarn break during processing and fabrication and splitting can be readily effected without failures. After split, resulting fibers consist of extremely fine filaments with modified cross section.

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