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    1.
    发明专利
    未知

    公开(公告)号：DE2632351A1

    公开(公告)日：1977-01-20

    申请号：DE2632351

    申请日：1976-07-17

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUMOTO TADAYUKI ,  IMAEDA KOZO ,  MINEO MASATOSHI ,  NAKAGAWA KIYOSHI ,  MISHIMA SHIZUOKA

    IPC: D02J1/00 ,  D02J1/08 ,  D02G1/16

    Abstract: Method for producing an interlaced multifilament yarn by rubbing and scratching a material multifilament yarn with a rotary rough surface member and with such intensity that individual filaments constituting the filament yarn are not substantially broken, the rotary surface member having projections which are smaller than the cross-sectional diameter of the individual filaments of the material yarn; diffusing a jetted fluid which is jetted in the yarn running direction along a predetermined yarn passage from a jetting aperture of a supply conduit through a nozzle formed with a rectifying and diffusing portion having a substantially uniform cross-section, and impinging the diffused jetted fluid against the running material multifilament yarn so that the individual filaments of the multifilament yarn mostly vibrate in a direction substantially parallel to a plane defined by the yarn running direction and the fluid jetting direction, the vibration taking place in a section of the yarn passage facing the rectifying and diffusing portion.

    TEXTURED POLYESTER YARNS AND PROCESS FOR THE PRODUCTION THEREOF
    3.
    发明专利
    TEXTURED POLYESTER YARNS AND PROCESS FOR THE PRODUCTION THEREOF 未知

    公开(公告)号：CA1050366A

    公开(公告)日：1979-03-13

    申请号：CA254321

    申请日：1976-06-08

    Applicant: TORAY INDUSTRIES

    Inventor： NAKAGAWA KIYOSHI ,  OTAKI YUKIO ,  MINEO MASATOSHI ,  ARATANI YOSHIO ,  TATSUOKA YOSHIO ,  KUSAKABE HARUHIKO

    IPC: D02G1/02 ,  D01H7/00

    Abstract: TEXTURED POLYESTER YARNS AND PROCESS FOR THE PRODUCTION THEREOF A textured polyester yarn having improved variation in dyeability along its length is composed of a plurality of individual filaments each having thick and thin sections randomly distributed along the filament axis, said yarn having an Uster evenness value of 1.0 to 10.0%, a T index of 3 to 30 and a variation in reflected light intensity in a continuous dyeing test of +0.15 to +0.80 and said yarn preferably having not-untwisted. portions containing genuine twists of a fixed direction intermittently retained at random along its length. The yarn is produced by false twisting a polyester yarn composed of a plurality-of individual filaments each having variation in cross-sectional area along its length, in which the thick sections have a birefringence of 15 to 80x10-3 and the thin sections have a birefringence of 90 to 200x10-3, at a temperature of not lower than 180.degree.C and under a twisting tension of 0.05 to 0.8 g/d with a variation with respect to the average twisting tension of +5 to +20%.

    5.
    发明专利
    未知

    公开(公告)号：DE3125254A1

    公开(公告)日：1982-06-09

    申请号：DE3125254

    申请日：1981-06-26

    Applicant: TORAY INDUSTRIES

    Inventor： OKA KENICHIRO ,  MINEO MASATOSHI ,  ONO TERUMICHI

    IPC: D01D5/08 ,  D01F6/62 ,  D01F6/84

    Abstract: A process for producing polyester fiber highly suitable for a raw yarn for a woven or knitted fabric, having a residual elongation of not higher than 60%, a Young's modulus of 60 to 100 g/d, a boiling water shrinkage of 4 to 10% and a dry heat shrinkage of 5 to 12%, the peak stress temperature in a dry heat shrinkage stress curve of said fiber being lower than 100 DEG C. The process comprises melt spinning a thermoplastic polyester through a spinneret into a filament and taking up the filament after solidifying the spun filamentary polymer, characterized in that the whole process from spinning through take-up is carried out without heating the filament, the filament is subjected to stretch treatment at a stretch ratio of not more than 20% after the solidification of the filament but before take-up, and take-up is carried out at a take-up speed of not less than 5,000 m/min.

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