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    POLYESTER FIBER
    1.
    发明专利
    POLYESTER FIBER 失效

    公开(公告)号：JP2001248019A

    公开(公告)日：2001-09-14

    申请号：JP2000056931

    申请日：2000-03-02

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIMIYA TAKAYUKI ,  FUKAZAWA TOKUHARU ,  MATSUMURA MASAHIDE

    IPC: D01F6/92

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester fiber and woven and knit fabrics excellent in fibrillation resistance and capable of obtaining dry feeling and squeaky feeling at the same time by low rate caustic reduction. SOLUTION: This polyester fiber comprises 90.0-99.5 wt.% thermoplastic saturated polyester and 0.5-10.0 wt.% melt liquid crystalline polyester and is characterized by that the melt liquid crystalline polyester forms a dispersed phase and has a linear form in axial direction, 0.01-3.00 μm width and 1.5-25 μm length.

    POLYESTER RAW YARN
    2.
    发明专利
    POLYESTER RAW YARN 失效

    公开(公告)号：JPH11256426A

    公开(公告)日：1999-09-21

    申请号：JP6129298

    申请日：1998-03-12

    Applicant: TORAY INDUSTRIES

    Inventor： AYABE TOSHIHARU ,  FUKAZAWA TOKUHARU

    IPC: D01F6/86 ,  D01F1/10 ,  D01F6/92

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester raw yarn excellent in fastness to nitrogen oxides and heat resistance. SOLUTION: This polyester raw yarn comprises a polyester prepared by copolymerizing 0.5-15 wt.% of a polyoxyalkylene glycol and having the residual ratio of the copolymerized polyoxyalkylene glycol to a phenolic antioxidant in the polyester raw yarn satisfying the formula: 3×10 [I denotes the residual ratio (wt.%) of he phenolic antioxidant in the polyester raw yarn; P denotes the copolymerization rate (wt.%) of the polyoxyalkylene glycol in the polyester raw yarn].

    PRODUCTION OF HOLLOW POLYESTER FIBER
    3.
    发明专利
    PRODUCTION OF HOLLOW POLYESTER FIBER 失效

    公开(公告)号：JPH11241216A

    公开(公告)日：1999-09-07

    申请号：JP4068898

    申请日：1998-02-23

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIKAWA SHIZUYA ,  FUKAZAWA TOKUHARU ,  SATO YOSHIAKI

    IPC: D01F1/08 ,  D01D4/08 ,  D01D5/096 ,  D01D5/24 ,  D01F6/62

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a synthetic fiber having a hollow cross section and suitable for a clothing at a high speed. SOLUTION: This method for producing a hollow polyester fiber having 0.60-0.80 intrinsic viscosity and 0.5-10 d mono-filament thickness, is to set the position of an injecting surface of a spinnerets 7 at 20-100 mm upper direction relative to a bottom liquid surface of a heating medium chamber for heating an injected polymer and an oil feeding position to the fiber bundle at 1200-2200 mm lower direction relative to the injection part of the Spinnerets 7, and wind the fibers at 2500 m/min spinning speed thereof.

    PACKAGE OF POLYESTER MULTIFILAMENT FOR TWISTED YARN DIVISION AND MANUFACTURE THEREOF
    4.
    发明专利
    PACKAGE OF POLYESTER MULTIFILAMENT FOR TWISTED YARN DIVISION AND MANUFACTURE THEREOF 失效

    公开(公告)号：JPH09175733A

    公开(公告)日：1997-07-08

    申请号：JP33910495

    申请日：1995-12-26

    Applicant: TORAY INDUSTRIES

    Inventor： FUKAZAWA TOKUHARU ,  TSUKAMOTO TETSUO ,  SATO YOSHIAKI

    IPC: B65H54/02 ,  B65H55/04 ,  D02G1/02 ,  D02G3/26

    Abstract: PROBLEM TO BE SOLVED: To stably divide yarn without causing any yarn cuts even at high speed when twisted yarn dividing polyester multifilament is divided into single yarn by a twisted yarn dividing machine by gradually recreating the number of twists, which is the subtraction of the number of yarn untwists from the number of yarn twists, from the beginning to finishing of winding them around the package. SOLUTION: Regarding manufacture of a package for twisted yarn dividing polyester multifilament, which spin melts the polyester and makes package winding of a wound drum as drawing and adding twists to the yarn with a draw twister, the number of twists arrived by subtracting the number of yarn untwists from the number of yarn twists at the time of adding twists are processed so that they are wound by the number of twists being gradually increased from the beginning to the finishing of package winding. In this case, it is preferably to set the number of yarn twists arrived by subtracting the number of yarn untwists from the number of yarn twists to be 1.0T/m or more at the beginning of package winding and less than 12.0T/m at the finish of winding. Thus yarn can be divided even at high speed without causing any yarn cuts.

    POLYESTER-BASED CONJUGATE HOLLOW FIBER OF UNEVEN THICKNESS
    8.
    发明专利
    POLYESTER-BASED CONJUGATE HOLLOW FIBER OF UNEVEN THICKNESS 失效

    公开(公告)号：JPH11222728A

    公开(公告)日：1999-08-17

    申请号：JP2092798

    申请日：1998-02-02

    Applicant: TORAY INDUSTRIES

    Inventor： SHIBATA TOMOKO ,  FUKAZAWA TOKUHARU ,  SATO YOSHIAKI

    IPC: D06M11/00 ,  D01D5/24 ,  D01F6/62 ,  D01F8/14 ,  D02J1/00 ,  D06M11/38 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  D06M101/32

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester-based conjugate hollow fiber of uneven thickness, capable of being woven or knitted even it is not treated, showing polygonal, hollow fiber of uneven thickness, when treated to remove the outer layer component by dissolution, the polygonal fiber having feel of span, lightness, a specific of depth of unique luster in sparkling luster, feel of dry touch, harshness and firm texture, and suitable for woven or knitted stuff for high-class clothes. SOLUTION: This fiber is a conjugate fiber composed of two types of polyester, the outer layer component dissolving at least 5 times faster than the inner layer component, wherein the inner layer component takes a polygonal, hollow shape, with outer shape being polygonal from triangle to pentagon, e.g. that shown by (a), (b) or (c), and the inner shape substantially similar to the outer shape and having a hollowness of 10 to 40%. The fiber also has uneven thickness of 2 to 9% as U value and shrinkage of 10 to 30%, with boiling water.

    HIGH WATER-ABSORBING/QUICK-DRYING POLYESTER YARN HAVING X TYPE CROSS SECTION
    10.
    发明专利
    HIGH WATER-ABSORBING/QUICK-DRYING POLYESTER YARN HAVING X TYPE CROSS SECTION 失效

    公开(公告)号：JP2000282323A

    公开(公告)日：2000-10-10

    申请号：JP9117499

    申请日：1999-03-31

    Applicant: TORAY INDUSTRIES

    Inventor： SHIBATA TOMOKO ,  FUKAZAWA TOKUHARU ,  MATSUMURA MASAHIDE

    IPC: D01F6/62 ,  D01D5/253

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyester yarn having an X type cross section with water absorbing properties and quick-drying properties than those of a conventional yarn in use not only for silk but also for finished yarn, useful as a material for sport clothing or inner clothing by making the yarn have a specific intersection angle and a specified porosity. SOLUTION: This polyester yarn having an X type cross section has a single yarn cross-sectional shape of X type section with four leaf projection parts around the yarn in which one intersection angle θ is 95-130 degrees and the porosity of the yarn is 10-35%. The polyester yarn having an X type cross section has 10-80 modified cross section degree of four recessed parts of the single yarn cross section. The modified cross section degree of four leaf projection parts is preferably 0.7-1.5. Preferably a multifilament yarn having 10-250 mm average opening length is constituted from the high water-absorbing/quick- drying polyester yarn having an X type cross section.

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