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    POLYESTER COVERED ELASTIC YARN AND METHOD FOR PRODUCING THE SAME
    21.
    发明专利
    POLYESTER COVERED ELASTIC YARN AND METHOD FOR PRODUCING THE SAME 失效

    公开(公告)号：JP2001295148A

    公开(公告)日：2001-10-26

    申请号：JP2000103329

    申请日：2000-04-05

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA TOSHIHIKO ,  UMEDA KAZUO ,  TAKAHASHI TORU

    IPC: D02G3/32 ,  D02G1/02 ,  D02G3/04 ,  D02G3/28 ,  D02J1/08 ,  D02J1/22

    Abstract: PROBLEM TO BE SOLVED: To obtain a high quality polyester covered elastic yarn excettent excellent in crimping characteristics by the specified method, and to provide the method for producing the same. SOLUTION: This polyester coated elastic yarn is characterized in that the coated elastic yarn is obtained by covering the outer periphery of an elastic yarn as a core yarn with a false twist crimped yarn of polyethylene terephthalate as a sheath yarn in a essentially twistless manner, the single filament fineness of the sheath yarn is 0.4-3.0 dtex, the number of filaments of the sheath yarn is 20-150 and elastic fastness elongation ratio of the covered elastic yarn is 30-80%. This method for producing the polyester covered elastic yarn is characterized in that a stretched elastic yarn is arranged in parallel with a polyethylene terephthalate yarn having 40-150% elongation, interlaced, subjected to drawing-false twist texturing to forma structure in which outer periphery of the elastic yarn as the core yarn is coated with the false twisted crimped yarn of poyethylene terephthalate as the sheath yarn in a substantially twistless manner.

    COMPOSITE COVERED ELASTIC YARN AND METHOD FOR PRODUCING THE SAME
    22.
    发明专利
    COMPOSITE COVERED ELASTIC YARN AND METHOD FOR PRODUCING THE SAME 失效

    公开(公告)号：JP2001288635A

    公开(公告)日：2001-10-19

    申请号：JP2000100280

    申请日：2000-04-03

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA TOSHIHIKO ,  UMEDA KAZUO ,  TAKAHASHI TORU ,  MIKI YOSHIYUKI ,  INOUE HIROSHI

    IPC: D02G3/32 ,  D02G1/08 ,  D02G3/02 ,  D02G3/28 ,  D02G3/36 ,  D02G3/38 ,  D02J1/00

    Abstract: PROBLEM TO BE SOLVED: To obtain a composite covered elastic yarn not causing the phenomenon of exposure of core yarn and to provide a method for producing the same. SOLUTION: This bulky conjugate elastic yarn Z has a yarn structure obtained by coating the circumference of an elastic yarn 1 of a core yarn with a multifilament false twist yarn 2 in a substantially twistless manner to constitute a false twist covered elastic yarn Y of twistless covered structure and further substantially interlacing the circumference of the false twist covered elastic yarn Y with a filament yarn or a stable fiber yarn X. The elastic yarn is arranged in parallel with the multifilament yarn and subjected to false twisting to produce the false twist covered elastic yarn and the circumference of the false twist coated elastic yarn is subjected to interlacing treatment with the filament yarn or the stable fiber yarn to give the objective composite covered elastic yarn.

    COMPOSITE COVERED ELASTIC YARN AND METHOD FOR PRODUCING THE SAME
    23.
    发明专利
    COMPOSITE COVERED ELASTIC YARN AND METHOD FOR PRODUCING THE SAME 失效

    公开(公告)号：JP2001288634A

    公开(公告)日：2001-10-19

    申请号：JP2000100279

    申请日：2000-04-03

    Applicant: TORAY INDUSTRIES

    Inventor： KIMURA TOSHIHIKO ,  UMEDA KAZUO ,  TAKAHASHI TORU ,  MIKI YOSHIYUKI ,  INOUE HIROSHI

    IPC: D02G3/32 ,  D02G1/08 ,  D02G3/02 ,  D02G3/36 ,  D02G3/38 ,  D02J1/00

    Abstract: PROBLEM TO BE SOLVED: To obtain a composite covered elastic yarn not causing the phenomenon of exposure of core yarn and to provide a method for producing the same. SOLUTION: This composite covered elastic yarn Z is composed of a yarn structure obtained by covering the circumference of an elastic yarn of a core yarn with a multifilament false twist yarn 2 of a sheath yarn in a substantially twistless manner to constitute a false twist covered elastic yarn Y of twistless coating structure and winding the circumference of the false twist coated elastic yarn Y with a filament yarn or a stable fiber yarn by twisting. The elastic yarn is arranged in parallel with the multifilament yarn and subjected false twisting to produce the false twist coated elastic yarn and the circumference of the false twist coated elastic yarn is wound with the filament yarn or the stable fiber yarn by a covering processing or a doubling processing to give the objective composite covered elastic yarn.

    COATED ELASTIC YARN AND PRODUCTION THEREOF
    25.
    发明专利
    COATED ELASTIC YARN AND PRODUCTION THEREOF 失效

    公开(公告)号：JPH03227421A

    公开(公告)日：1991-10-08

    申请号：JP9835890

    申请日：1990-04-13

    Applicant: TORAY INDUSTRIES

    Inventor： TAKAHASHI TORU ,  INUYAMA HISAO ,  MATSUDA HEIICHIRO

    IPC: D02G1/02 ,  D02G3/04 ,  D02G3/22 ,  D02G3/24 ,  D02G3/32 ,  D02G3/36 ,  D02J13/00

    Abstract: PURPOSE:To obtain the title elastic yarn having excellent stretchability by subjecting elastic filament yarn and nonelastic crimped yarn of synthetic multifilament to fluid interlacing treatment at the same time, then feeding to heat-treating heater and a twisting device and falsely twisting. CONSTITUTION:(A) Elastic filament yarn 1 such as polyurethane-based elastic fiber and (B) nonelastic crimped yarn 2 of synthetic multifilament made of synthetic fiber such as polyamide-based fiber are sent to feed rollers 7 and subjected to fluid interlacing treatment by a fluid interlacing nozzle 8. Then the yarn after the interlacing treatment is falsely twisted by a twister 10 to spread false twist to a heat-treating heater 9 to give the objective high-quality elastic yarn having excellent stretchability and covering properties at a low cost.

    CORE-SHEATH TYPE CONJUGATE SPUN YARN AND ITS PRODUCTION
    26.
    发明专利
    CORE-SHEATH TYPE CONJUGATE SPUN YARN AND ITS PRODUCTION 失效

    公开(公告)号：JPH08226034A

    公开(公告)日：1996-09-03

    申请号：JP3354295

    申请日：1995-02-22

    Applicant: TORAY INDUSTRIES

    Inventor： UEDA SHUJIRO ,  TAKAHASHI TORU ,  MURAKAMI TETSUSHI

    IPC: D02G3/38 ,  D02G3/04 ,  D02G3/36

    Abstract: PURPOSE: To provide a method for producing a raw material for clothes, excellent in strength characteristics, wound resistance, heat resistance, abrasion resistance and dyeing property and suitable for door sport, etc. CONSTITUTION: This core-sheath type conjugated spun yarn is composed of a core part comprising a short fiber bundle A and a sheath part comprising a short fiber bundle B and the short fiber bundle A comprises a blended fiber of a polyester short fiber with an aromatic polyamide short fiber, and the short fiber bundle B comprises a polyester short fiber. This method for producing a core-sheath type conjugated spun yarn is to feed the short fiber bundle A comprising the polyester short fiber and the aromatic polyamide short fiber and the short fiber bundle B comprising a polyester short fiber to a ring spinning frame having a front top roller 5 comprising a pair of taper roller 5 and a front bottom roller 6 so that an amount of the short fiber bundle A becomes lower than the feed out amount of the short fiber bundle B and wind the short fiber bundle B round the short fiber bundle A used as a core part and apply real twist to yarn.

    EASILY SOLUBLE HIGH-SHRINKAGE POLYESTER YARN AND PRODUCTION THEREOF
    27.
    发明专利
    EASILY SOLUBLE HIGH-SHRINKAGE POLYESTER YARN AND PRODUCTION THEREOF 失效

    公开(公告)号：JPH02216215A

    公开(公告)日：1990-08-29

    申请号：JP3425089

    申请日：1989-02-14

    Applicant: TORAY INDUSTRIES

    Inventor： TAKAHASHI TORU ,  INUYAMA HISAO

    IPC: D01F6/84 ,  D02J1/22 ,  D06M11/00 ,  D06M11/38 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  D06M101/32

    Abstract: PURPOSE:To obtain the subject yarn exhibiting specific boiling water shrinkage and boiling water shrinking stress, having improved weaving crimpness and giving a woven fabric having excellent drape, bulkiness and stretchability by drawing a highly oriented undrawn polyester yarn copolymerized with the 3rd component at or below the Tg temperature. CONSTITUTION:The objective yarn composed of a polyester having an alkali dissolution rate >=10 times higher than that of polyethylene terephthalate, a boiling water shrinkage of >=50% and a boiling water shrinking stress of >=0.05g/d can be produced by drawing a highly oriented undrawn yarn of a polyester copolymerized with the 3rd component at or below the Tg temperature of the polymer.

    POLYESTER LATENTLY CRIMPABLE YARN AND ITS PRODUCTION
    28.
    发明专利
    POLYESTER LATENTLY CRIMPABLE YARN AND ITS PRODUCTION 失效

    公开(公告)号：JPH02210034A

    公开(公告)日：1990-08-21

    申请号：JP2550089

    申请日：1989-02-02

    Applicant: TORAY INDUSTRIES

    Inventor： TAKAHASHI TORU ,  INUYAMA HISAO

    IPC: D02G1/02 ,  D02G3/24

    Abstract: PURPOSE:To obtain the title crimped yarn which has specific boiling water shrinkage, boiling water shrinkage stress and dry heat shrinkage, can be heat- formed into a variety of three-dimensionally curved faces without breakage and the like, thus readily giving cloth of good appearance and touch. CONSTITUTION:When high-oriented, undrawn yarns of high speed-extruded polyester are drawn and false-twisted at room temperature to the Tg point, the yarns are forcibly stopped twisting with a rotatable twist-stopping guide 4 provided with ceramic blades set between the twister and the feed roller 7 to give the subject crimped yarn of less than 2.5 filament denier, more than 50% boiling water shrinkage, more than 0.05g/d boiling water shrinkage stress, less than 2% dry heat shrinkage at 150 deg.C after constant-length treatment with boiling water, thus being useful in high-density cloth without breakage at the formed site of a large curvature.

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