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    CONJUGATE FIBER HAVING SELF-CRIMPING PROPERTY
    83.
    发明专利
    CONJUGATE FIBER HAVING SELF-CRIMPING PROPERTY 失效

    公开(公告)号：JPS61289125A

    公开(公告)日：1986-12-19

    申请号：JP12824285

    申请日：1985-06-14

    Applicant: TORAY INDUSTRIES

    Inventor： NAGAYASU NAOTO ,  KAYABA KEIJI ,  FUJIKI MINORU ,  YAMAMOTO MASAHARU

    IPC: D01F8/12 ,  D01F6/60 ,  D01F6/82

    Abstract: PURPOSE:To obtain the titled conjugate fiber having high stretchability and useful for stockings, etc., by carrying out the composite melt spinning using a crystalline polyamide as the low-shrinkage component and a specific polyether ester amide polymer, etc., as the high-shrinkage component. CONSTITUTION:The objective fiber can be produced by the composite melt spinning of a high-shrinkage polymer consisting of a polyether ester amide polymer and/or polyether amide polymer derived from (A) a 6-20C aliphatic diamine, (B) a 6-15C aliphatic dicarboxylic acid (essentially equimolar amount to the aliphatic diamine A), (C) a polyalkylene oxide glycol and/or polyalkylene oxide diamine having a number-average molecular weight of 300-2,000 and (D) a 4-20C dicarboxylic acid and a low-shrinkage polymer consisting of a crystalline polyamide. A conjugate fiber having sufficiently high tenacity even at fine denier can be produced without causing the thermal decomposition, foaming, gelatinization, etc., of the elastomer.

    SELF-CRIMPING CONJUGATE FIBER
    84.
    发明专利
    SELF-CRIMPING CONJUGATE FIBER 失效

    公开(公告)号：JPS61289124A

    公开(公告)日：1986-12-19

    申请号：JP12824185

    申请日：1985-06-14

    Applicant: TORAY INDUSTRIES

    Inventor： NAGAYASU NAOTO ,  KAYABA KEIJI ,  FUJIKI MINORU ,  YAMAMOTO MASAHARU

    IPC: D01F8/12 ,  D01F6/60 ,  D01F6/82

    Abstract: PURPOSE:To obtain the titled fiber having fine crimping property and excellent stretchability and recovery and suitable for stockings, etc., by the composite melt spinning of a polymer composed of a crystalline polyamide and having low shrinkability and a polymer composed of a specific polyether ester amide polymer, etc., and having high shrinkability. CONSTITUTION:The objective fiber can be produced by the composite melt spinning of (A) a polymer composed of a crystalline polyamide and having low shrinkage [preferably a polymer containing >=95(wt)% nylon 6 or >=90% nylon 66] and (B) a polymer having high shrinkage and composed of a polyether ester amide polymer and/or polyether amide polymer derived from (i) a >=10C aminocarboxylic acid and/or lactam, (ii) a poly(alkylene oxide) glycol and/or poly(alkylene oxide) diamine having a number-average molecular weight of 300-6,000 and (iii) a 4-20C dicarboxylic acid.

    PROCESS FOR DIRECT SPINNING AND DRAWING OF POLYAMIDE FIBER
    86.
    发明专利
    PROCESS FOR DIRECT SPINNING AND DRAWING OF POLYAMIDE FIBER 失效

    公开(公告)号：JPS60104515A

    公开(公告)日：1985-06-08

    申请号：JP21090583

    申请日：1983-11-11

    Applicant: TORAY INDUSTRIES

    Inventor： SATOU TAKUJI ,  YAMAMOTO MASAHARU ,  FUKUSHIGE MOTOHIRO

    IPC: D01F6/60 ,  D01D7/00

    Abstract: PURPOSE:To enable the high-speed winding of a fiber to a well-shaped package, suppressing the internal strain of the fiber, by placing godet rolls between the drawing roll and the winding roll, and winding the fiber while taking up under a specific condition. CONSTITUTION:A polyamide fiber is intertwined with air by the intertwining apparatus 4, drawn between the take-up roll 5 and the hot drawing roll 6 at a ratio of =4,000m/min to obtain the wound package 7. The surface temperature of the drawing roll is adjusted to Tg+50-Tm- 10(C ). The spun fiber is wound

    HIGH-SPEED SPINNING OF THERMOPLASTIC SYNTHETIC FIBER
    87.
    发明专利
    HIGH-SPEED SPINNING OF THERMOPLASTIC SYNTHETIC FIBER 失效

    公开(公告)号：JPS60104511A

    公开(公告)日：1985-06-08

    申请号：JP21090483

    申请日：1983-11-11

    Applicant: TORAY INDUSTRIES

    Inventor： NAGAYASU NAOTO ,  HATA OSAMU ,  YAMAMOTO MASAHARU

    IPC: D01D5/096

    Abstract: PURPOSE:To enable the winding of spun yarn in good package form even at a high take-up speed, by melting and spinning a thermaoplastic synthetic polymer, cooling and solidifying the polymer, and applying a lubricant liquid cooled to a specific temperature to the spun yarn. CONSTITUTION:A thermoplastic synthetic polymer, preferably a polyamide polymer, is melted and spun through the spinneret 1 to obtain a spun yarn Y. The yarn Y is cooled and solidified in the chimney 2, and introduced into the oiling guide 3. Separately, a lubricant liquid in the lubricant tank 8 is metered with the metering pump 7, cooled to =4,500m/min), and wound in the form of a package 6. The form, uniformity and unwindability of the package can be improved.

    PREPARATION OF POLYESTER ANTISTATIC COMPOSITE FIBER
    89.
    发明专利
    PREPARATION OF POLYESTER ANTISTATIC COMPOSITE FIBER 失效

    公开(公告)号：JPS57176219A

    公开(公告)日：1982-10-29

    申请号：JP6086381

    申请日：1981-04-22

    Applicant: TORAY INDUSTRIES

    Inventor： YAMAMOTO MASAHARU ,  YANAGIDA SHIGERU ,  NAKAGAWA KIYOSHI

    IPC: D01F8/14

    Abstract: PURPOSE:To obtain the titled fibers having high antistatic properties at a low cost stably only in the spinning step, by spinning a mixture of a specific block polyether amide composition with a polyester as a core part and a polyester as a sheath part under specific conditions. CONSTITUTION:A mixture of a block polyether amide with a polyester as a core part and a polyester as a sheath part are extruded through a spinneret 1 under such conditions as to satisfy the following: 0.4

    PRODUCTION OF COMBINED FILAMENT YARN
    90.
    发明专利
    PRODUCTION OF COMBINED FILAMENT YARN 失效

    公开(公告)号：JPS5789607A

    公开(公告)日：1982-06-04

    申请号：JP15959180

    申请日：1980-11-14

    Applicant: TORAY INDUSTRIES

    Inventor： TAKEUCHI MASANORI ,  YAMAMOTO MASAHARU

    IPC: D01F6/62 ,  D01D5/08 ,  D02G3/04

    Abstract: PURPOSE:Melt spinning is conducted under specific conditions that the filament fineness of the extremely fine filament yarn and the filament fineness of the hollow filaments satisfy specific relations to produce combined filament yarns giving fabrics free from dyeing speck and unpleasant luster, having good touch, draping property and resilience. CONSTITUTION:Extremely fine filament group A and hollow filament group B are simultaneously melt-spun to produce combined filament yarns under such conditions as the filament denier d1 of extremely fine filaments consitituting group A and the filament denier d2 of the hollow filament group B simultaneously satisfy the equations. The share of the extremely fine filament group A is preferably 40-85% in terms of the fineness of the combined filament yarn.

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