中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

185 records (took 0.03 seconds)

    PRODUCTION OF POLYESTER-BASED FALSE TWIST TEXTURED YARN
    51.
    发明专利
    PRODUCTION OF POLYESTER-BASED FALSE TWIST TEXTURED YARN 失效

    公开(公告)号：JPH0364540A

    公开(公告)日：1991-03-19

    申请号：JP19976689

    申请日：1989-07-31

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIKAWA SHIZUYA ,  TSUKAMOTO TETSUO ,  SATO YOSHIAKI

    IPC: D01F6/62 ,  D02G1/04 ,  D02J13/00

    Abstract: PURPOSE:To obtain the title yarn retaining a cross section in undrawn yarn and having good crimp characteristics by subjecting a polyester-based undrawn yarn having a modified cross section to drawing and false twisting in specific conditions and winding up the yarn in a low tension and applying a specific treatment to winding-up cheese. CONSTITUTION:A polyester-based undrawn yarn consisting of a filament having a modified cross-section is subjected to drawing and false twisting in such a state that processing temperature HT ( deg.C) and twist number T (t/m) satisfy formulas I II [D is fineness after false twisting; UYTg is glass transition temperature ( deg.C) of undrawn yarn] and the resultant false twisting yarn is wound up in =24hr to provide the objective yarn. Furthermore, the polyester preferably contains >=80mol% ethylene terephthalate. For the false twisting, a false twisting system of friction type is preferable.

    BLENDED FIBER YARN OF POLYESTER AND SILK
    53.
    发明专利
    BLENDED FIBER YARN OF POLYESTER AND SILK 失效

    公开(公告)号：JPS6426747A

    公开(公告)日：1989-01-30

    申请号：JP18450887

    申请日：1987-07-22

    Applicant: TORAY INDUSTRIES

    Inventor： FUJIMOTO MASUMI ,  SATO YOSHIAKI ,  HAYAKAWA KUNIAKI

    IPC: D02G3/04 ,  D01F6/62 ,  D01F8/14

    Abstract: PURPOSE: To obtain the subject combined filament yarn excellent in strength and abrasion resistance of a knit or a woven fabric, decolorable and redyeable and suitable for high-class clothes uses by combining filaments of a conjugated fiber of a polyester dissolving under degumming conditions of silk and a polyester without dissolving under the same conditions with a silk continuous filament. CONSTITUTION: (A) A polyester A dissolving under degumming conditions of silk (e.g. a soap soda method) (e.g. a copolymer of ethylene terephthalate unit with preferably 10-50 wt.% of adipic acid, etc.), and (B) a polyester B, preferably of the type dyeable with a disperse dye without dissolving under the same conditions (e.g. polyethylene terephthalate copolymerized with 5-20 wt.% of phthalic acid) are formed into a conjugated fiber, e.g. a core-sheath type or an island-in-sea type. For example, the doubling or doubling and twisting of the conjugated fiber with (C) a bave of a silk continuous filament are carried out to afford the objective combined filament yarn.

    MELT SPINNING OF THERMOPLASTIC POLYMER
    56.
    发明专利
    MELT SPINNING OF THERMOPLASTIC POLYMER 失效

    公开(公告)号：JPS6366312A

    公开(公告)日：1988-03-25

    申请号：JP21218686

    申请日：1986-09-09

    Applicant: TORAY INDUSTRIES

    Inventor： TSUKAMOTO TETSUO ,  SATO YOSHIAKI ,  YOSHIKAWA SHIZUYA

    IPC: D01D4/04 ,  D01D5/08

    Abstract: PURPOSE:To prevent fusion even in using a spinneret having small thin hole intervals, by electrically insulating the spinneret from the neighboring members and carrying out spinning in a state wherein DC voltage is impressed to the spinneret. CONSTITUTION:A spinneret 1 is electrically insulated from the neighboring members, DC voltage is impressed to the spinneret 1 and each filament is repulsed. The value of thin hole intervals (mm) X impression voltage (V) is preferably >=1,000, more preferably >=1,500. The value of delivery amount of thin holes (g/min) X impression voltage (V) is preferably >=150, more preferably >=200. Excellent effects are obtained in a spinneret having

    MELT SPINNING OF TITANIUM OXIDE-CONTAINING POLYESTER FIBER
    57.
    发明专利
    MELT SPINNING OF TITANIUM OXIDE-CONTAINING POLYESTER FIBER 失效

    公开(公告)号：JPS6328913A

    公开(公告)日：1988-02-06

    申请号：JP16594986

    申请日：1986-07-15

    Applicant: TORAY INDUSTRIES

    Inventor： YOSHIKAWA SHIZUYA ,  TSUKAMOTO TETSUO ,  SATO YOSHIAKI

    IPC: D01D4/04 ,  D01D5/08 ,  D01F6/62 ,  D01F6/92

    Abstract: PURPOSE:To prevent occurrence of staining on the peripheries of discharge holes of a spinneret, by melting a polyester polymer containing titanium oxide to give an apparent viscosity of a specific value or above and discharging the resultant melt through a spinneret electrically insulated from the adjacent members. CONSTITUTION:A polyester polymer, e.g. polybutylene terephthalate, containing titanium oxide is melt spun. In the process, a spinneret is electrically insulated from the adjacent members thereof and the apparent viscosity of the melt in passing through discharge holes of the spinneret is adjusted to >=500 P, preferably 600-3,000 P. The spinneret 1 is electrically insulated by providing seals 3 and 3' consisting of an insulator on and under the spinneret 1.

Patent Agency Ranking