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    Polyester composite filament yarn having stable crimps
    1.
    发明授权
    Polyester composite filament yarn having stable crimps 失效
    聚酯复合纤维纱具有稳定的弹性

    公开(公告)号：US3616634A

    公开(公告)日：1971-11-02

    申请号：US3616634D

    申请日：1969-06-04

    Applicant: TORAY INDUSTRIES

    Inventor： TOMIITA KAZUO ,  TAKASE TAKESHI ,  FUKUHARA MOTOTADA ,  SANO CHIKARA ,  OHMAE NOBUO

    IPC: D01D5/30 ,  D02G3/04 ,  D02J1/12 ,  D03D13/00

    CPC classification number: D01D5/32 ,  D01D5/22 ,  Y10S57/905 ,  Y10T428/2909 ,  Y10T428/2931

    Abstract: A POLYESTER COMPOSITE MULTIFILAMENT YARN COMPOSED OF A PLURALITY OF INDIVIDUAL FILAMENTS HAVING COMBINED PROPERTIES OF THE SHRINKING PROPERTIES RESTRICTED AS FOLLOWS.

    PERCENT

    (1) A RANGE OF APPARENT SHRINKAGE WHEN THE YARN IS TREATED IN HOT WATER AT A STRETCHED CONDITION OF APPROXIMATELY 5 MG./DENIER 0-20 (2) SUBSTANTIAL SHRINKAGE WHEN THE YARN IS TREATED BY THE SAME MANNER AS IN CASE OF MEASURING THE APPARENT SHRINKAGE OF YARN LOWER THAN 3

    THE ABOVE-MENTIONED COMPOSITE MULTIFILAMENT YARN CAN BE ALSO DEFINED WITH RESPECT TO THE DENSITY OF FILAMENT, OR NUMBER OF CRIMPS AFTER TREATMENT IN BOILING WATER. THE PREFERABLE CONDITION OF THE DENSITY OF FILAMENT IS RESTRICTED AT MORE THAN 1.3850 WHILE THE NUMBER OF CRIMPS IS RESTRICTED A RANGE FROM 10 TO 35/CM.

    BUNDLE OF FIBROUS ELEMENTS, METHOD AND APPARATUS FOR PRODUCING THEREOF
    5.
    发明专利
    BUNDLE OF FIBROUS ELEMENTS, METHOD AND APPARATUS FOR PRODUCING THEREOF 未知

    公开(公告)号：CA1101178A

    公开(公告)日：1981-05-19

    申请号：CA310345

    申请日：1978-08-30

    Applicant: TORAY INDUSTRIES

    Inventor： NEGISHI TAKAO ,  TOMIITA KAZUO

    IPC: D01D5/20 ,  D02G3/22 ,  D02G3/34 ,  D06B11/00 ,  D01F1/00

    Abstract: Disclosed is a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In these fibrous elements constituting the fibrous bundle, the thick portions have, in general, a higher dyeability than the thin portions, and in the fibrous bundle, these higher dyeability portions are formed substantially randomly at a distribution ratio of at least 300 portions per 10 cm of the length of the fibrous bundle. This fibrous bundle is characterized in that it apparently resembles a fibrous bundle composed of fibrous elements uniform in the thickness and dyeability. Also a process and apparatus for manufacturing such fibrous bundles are disclosed.

    BULKY TEXTURED MULTIFILAMENT YARN AND PROCESS FOR MAKING SAME
    8.
    发明专利
    BULKY TEXTURED MULTIFILAMENT YARN AND PROCESS FOR MAKING SAME 未知

    公开(公告)号：CA1116383A

    公开(公告)日：1982-01-19

    申请号：CA321843

    申请日：1979-02-16

    Applicant: TORAY INDUSTRIES

    Inventor： NEGISHI TAKAO ,  TOMIITA KAZUO

    IPC: D02G1/00 ,  D02G3/00

    Abstract: A bulky textured multifilament yarn comprises sections of interlaced individual filaments and sections of non-interlaced individual filaments, wherein the interlaced and non-interlaced sections are formed alternately along the lengthwise direction of the yarn, the filaments in any predetermined length of the yarn are substantially identical in length, and some portions of the individual filaments protrude out from the axis of the yarn. The yarn is made by slcakening a multifilament yarn treated by a false twisting operation, and then by interlacing the slackened multifilament yarn by means of a fluid jet stream while taking up the multifilament yarn.

    APPARATUS FOR PRODUCING AN IMPROVED BUNDLE OF FIBROUS ELEMENTS
    9.
    发明专利
    APPARATUS FOR PRODUCING AN IMPROVED BUNDLE OF FIBROUS ELEMENTS 未知

    公开(公告)号：CA1107474A

    公开(公告)日：1981-08-25

    申请号：CA357286

    申请日：1980-07-29

    Applicant: TORAY INDUSTRIES

    Inventor： NEGISHI TAKAO ,  TOMIITA KAZUO

    IPC: D02G1/00 ,  D02G3/00

    Abstract: Disclosed is a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In these fibrous elements constituting the fibrous bundle, the thick portions have, in general, a higher dyeability than the thin portions, and in the fibrous bundle, these higher dyeability portions are formed substantially randomly at a distribution ratio of at least 300 portions per 10 cm of the length of the fibrous bundle. This fibrous bundle is characterized in that it apparently resembles a fibrous bundle composed of fibrous elements uniform in the thickness and dyeability. Also a process and apparatus for manufacturing such fibrous bundles are disclosed.

    10.
    发明专利
    未知

    公开(公告)号：DE2947524A1

    公开(公告)日：1980-06-04

    申请号：DE2947524

    申请日：1979-11-26

    Applicant: TORAY INDUSTRIES

    Inventor： KASAI ISAMU ,  TOMIITA KAZUO ,  INUYAMA HISAO

    IPC: B65H54/02 ,  B65H55/00 ,  D02G1/02 ,  B65H54/06

    Abstract: A method for soft winding around a bobbin a false twisted yarn, which is delivered from a false twisting zone wherein false twists imparted into a fed yarn and running back therealong are heat set and which is heat treated by a second heater, the false twisted yarn being fed by means of a yarn delivery means to the bobbin in a winding apparatus. The time period wherein the false twisted yarn travels from the yarn delivery means to the bobbin is adjusted at a special value so that a soft wound cheese having a uniform and low apparent density and good shape can be obtained.

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