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    UNIFORMLY DYED THICK AND THIN POLYESTER YARN AND ITS PRODUCTION
    6.
    发明专利
    UNIFORMLY DYED THICK AND THIN POLYESTER YARN AND ITS PRODUCTION 失效

    公开(公告)号：JPS5620611A

    公开(公告)日：1981-02-26

    申请号：JP9368579

    申请日：1979-07-25

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUMOTO TADAYUKI ,  MINEO MASANORI ,  OOHASHI MASAYASU

    IPC: D06P3/52 ,  D01F6/62 ,  D02G3/02 ,  D02G3/04 ,  D06M11/00 ,  D06M13/188 ,  D06M23/00 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  D06M101/32 ,  D06P3/54 ,  D06P5/22

    Abstract: PURPOSE:To obtain the titled thick and thin yarn, capable of giving a knitted or woven fabric having the hand of a spun yarn without causing cohesion between filaments, by dyeing a nonuniformly drawn filament yarn having a change in cross- sectional area in the axial direction, and a double refraction of the thick and thin parts in a specific range under specified conditions. CONSTITUTION:A nonuniformly drawn polyester filament yarn having varied cross- sectional areas, thick undrawn parts, preferably of double refraction 0.015-0.08, thin drawn parts, preferably of double refraction 0.09-0.2, and a U% of 2-20, preferably 4-16, is dyed at 130-140 deg.C by means of a benzoic acid carrier to give the objective uniformly dyed thick and thin yarn having a coefficient of variation in FYL value in the long direction of 0.8% or less. The nonuniformly drawn polyester yarn has preferably 100 fluffs or less per 2,000m.

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