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    POLYESTER YARN AND METHOD FOR PRODUCTION THEREOF
    31.
    发明公开
    POLYESTER YARN AND METHOD FOR PRODUCTION THEREOF 有权
    聚酯和方法及其生产

    公开(公告)号：EP1154055A4

    公开(公告)日：2004-11-24

    申请号：EP00976251

    申请日：2000-11-15

    Applicant: TORAY INDUSTRIES

    Inventor： MOCHIZUKI KATSUHIKO ,  SUGANO KOJI ,  MAEDA YUHEI

    IPC: D01F6/62 ,  D02G1/02 ,  D02J1/08 ,  D03D15/00 ,  D02G3/02

    CPC classification number: D01F6/62 ,  D02G1/02 ,  D02J1/08 ,  D03D15/00 ,  D03D15/0083 ,  D03D15/04 ,  D10B2331/04 ,  D10B2401/046 ,  D10B2401/061

    Abstract: A multifilament yarn consisting essentially of polytrimethylene terephthalate, characterized in that a strength in a stress-strain curve of 3 cN/dtex or more, a Young's modulus of 25 cN/dtex or less, a minimum differential Young's modulus in the range of 3 to 10 % elongation of 10 cN/dtex or less and an elastic recovery after 10% elongation of 90 % or more. A method for producing the polyester yarn, characterized as comprising subjecting a polytrimethylene terephthalate having a limiting viscosity [ eta ] of 0.7 or more to melt spinning to form a multifilament yarn, taking the multifilament yarn up at a spinning rate of 2000 m/min or more, stretching the yarn while treating it with heat without temporarily winding it up, successively subjecting the resulting yarn to relaxation treatment at a relaxation degree of 6 to 20 %, and then winding the yarn up to a package. The polyester yarn and a woven fabric made of the yarn are free from excessively tight winding even when the yarn is spun with high speed, and are reduced in the dispersion of its properties in the longitudinal direction of its fiber and in the feeling of squeeze.

    METHOD AND APPARATUS FOR PRODUCING POLYESTER FIBER
    35.
    发明公开
    METHOD AND APPARATUS FOR PRODUCING POLYESTER FIBER 失效
    方法和设备用于生产聚酯。

    公开(公告)号：EP0621357A4

    公开(公告)日：1996-07-31

    申请号：EP93924797

    申请日：1993-11-10

    Applicant: TORAY INDUSTRIES

    Inventor： UEDA KUNIHIKO ,  ARAKANE SHUKO ,  SANO TAKAO ,  MAEDA YUHEI

    IPC: D01D5/12 ,  D01D5/08 ,  D01D5/16 ,  D01F6/62 ,  D02J1/22

    CPC classification number: D01D10/02 ,  D01D5/16 ,  D01F6/62 ,  D02J1/222 ,  Y10S57/908

    Abstract: This invention relates to a method and an apparatus for producing a polyester fiber involving the steps of cooling a plurality of polyester fibers melt-spun from a spinneret (2) to a temperature below a glass transition point, taking up the fibers at a take-up speed of less than 4,000 m/min by a non-heated first godet roller (7), heat-stretching the fibers in a normal-pressure steam atmosphere at a temperature above a glass transition point of the polyester fiber (first heat-treating apparatus (8)) between the first non-heated godet roller (7) and a second non-heated godet roller (10), and heat-treating the fiber in a pressurization steam atmosphere at above 105 DEG C (second heat-treating apparatus (9)).

    STRETCH FABRIC
    38.
    发明专利
    STRETCH FABRIC 失效

    公开(公告)号：JP2002129448A

    公开(公告)日：2002-05-09

    申请号：JP2000314808

    申请日：2000-10-16

    Applicant: TORAY INDUSTRIES

    Inventor： ARANISHI YOSHITAKA ,  YAMADA HIROYUKI ,  MAEDA YUHEI

    IPC: D02G1/02 ,  C08L101/16 ,  D03D15/08

    Abstract: PROBLEM TO BE SOLVED: To provide a stretch fabric capable of being suitably used as a wear use such as working wear and a sports wear and a high grade clothe use required to have an attractive finish and a sewing property, since the fabric is equipped with a moderate stretching property and good touch feeling simultaneously. SOLUTION: This stretch fabric is characterized by using at least a poly lactic acid crimp-processed yarn as its weft yarns, having 10-100% woven crimping rate of the weft yarns and 10-80% elongation rate E1 in weft direction of the woven fabric.

    POLYLACTIC ACID FIBER
    39.
    发明专利
    POLYLACTIC ACID FIBER 失效

    公开(公告)号：JP2002030523A

    公开(公告)日：2002-01-31

    申请号：JP2000213874

    申请日：2000-07-14

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUMOTO HIROSHIGE ,  MAEDA YUHEI ,  ARANISHI YOSHITAKA

    IPC: C08L67/04 ,  C08L101/16 ,  D01F6/62 ,  D01F6/92

    Abstract: PROBLEM TO BE SOLVED: To obtain a polylactic acid fiber having a high strength and high heat resistance. SOLUTION: This polylactic acid fiber is characterized in that the polylactic acid fiber obtained by a melt spinning method comprises a blend of a poly(L- lactic acid) and a poly(D-lactic acid) and has >=2.6 cN/dTex strength and the ratio ΔHh/ΔH1 of an entotherm ΔH1 based on the crystal fusion of single crystal of poly(L-lactic acid) and single crystal of poly(D-lactic acid) obtained by DSC measurement to entotherm ΔHh based on crystal fusion of stereocomplex crystal composed of poly(L-lactic acid) and poly(D-lactic acid) of >=10.

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