中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

159 records (took 0.028 seconds)

    HIGHHSPEED SPINNING
    133.
    发明专利
    HIGHHSPEED SPINNING 失效

    公开(公告)号：JPS5673110A

    公开(公告)日：1981-06-17

    申请号：JP15001679

    申请日：1979-11-21

    Applicant: TORAY INDUSTRIES

    Inventor： MATSUMOTO TADAYUKI ,  MINEO MASANORI ,  NAKAGAWA KIYOSHI

    IPC: D01D7/00 ,  D01D11/00

    Abstract: PURPOSE:The feeder for yarn-finishing oil and the yarn-collecting guide are cooled to a specific temperature to prevent a yarn of thermoplastic high polymer from melt breakage caused by friction and permit the stable winding-up at a high speed. CONSTITUTION:When a thermoplastic high polymer such as polyethylene terephthalate is melt spun into a multifilament yarn at a speed higher than 5,000, preferably 6.000m/min, the yarn-finishing oil feeder 3 and the yarn-collecting guide 4 are cooled to a temperature lower than 15 deg.C at the surface contacting with the yarn with the cooler 8 and by passing water through the inside of the yarn-passing part 12.

    COMPOSITE FIBER HAVING IMPROVED ABRASION CHARACTERITIC
    134.
    发明专利
    COMPOSITE FIBER HAVING IMPROVED ABRASION CHARACTERITIC 失效

    公开(公告)号：JPS55158331A

    公开(公告)日：1980-12-09

    申请号：JP6379179

    申请日：1979-05-25

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAMOTO MASAHARU ,  YANAGIDA SHIGERU ,  NAKAGAWA KIYOSHI

    IPC: D01F8/04 ,  D01F8/14 ,  D03D15/00

    Abstract: PURPOSE:To improve the light screening property, and to reduce the abrasion of a guide, need, etc. in twisting, weaving and knitting steps, by forming the core layer with a high TiO2 content and the sheath layer with a lower content into a concentric sheath and core composite fiber. CONSTITUTION:A sheath-core type composite fiber consisting of a melt spinnable fiber-forming synthetic high polymer, wherein the sheath and the core layers are arranged concentrically, and the TiO2 content in the core layer is 1wt% or more, preferably 2-7wt%, with the TiO2 content in the sheath layer of less than 1%. The difference in TiO2 contents between the layers in 0.5wt% or more, preferably 2-7wt%. The fineness per fiber is 1-3de, and the smallest thickness of the sheath layer is 0.2-1mu.

Patent Agency Ranking