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    POLYESTER CONJUGATE FIBER
    41.
    发明专利
    POLYESTER CONJUGATE FIBER 失效

    公开(公告)号：JPS61296119A

    公开(公告)日：1986-12-26

    申请号：JP13166885

    申请日：1985-06-19

    Applicant: TORAY INDUSTRIES

    Inventor： MITSUYOSHI TAKEHIKO ,  SASAMOTO FUTOSHI ,  MINEO MASANORI

    IPC: D01F8/14

    Abstract: PURPOSE:To produce the titled fiber composed of a core and a sheath each made of a copolymer of an isophthalic acid component containing metal sulfonate group and other particular copolymerized component, having a core ratio falling within a specific range, having high strength and exhibiting excellent color-developability and color fastness to light after alkali dissolution. CONSTITUTION:The polyester conjugate fiber is a core-sheath fiber having the core ratio (B) satisfying the formula. The core component is a polyester copolymerized with (i) 1.0-1.8mol% isophthalic acid component (containing metal sulfonate group) based on the whole acid component of the core component polyester and (ii) 1.0-15wt% glycol having a molecular weight of >=120. The sheath component contains 0.1-5wt% inert inorganic fine particle having an average primary particle diameter of

    PRODUCTION OF POLYESTER YARN
    42.
    发明专利
    PRODUCTION OF POLYESTER YARN 失效

    公开(公告)号：JPS61225313A

    公开(公告)日：1986-10-07

    申请号：JP6387985

    申请日：1985-03-29

    Applicant: TORAY INDUSTRIES

    Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIRO ,  MINEO MASANORI

    IPC: D01D5/098 ,  D01F6/62 ,  D01F6/84

    Abstract: PURPOSE:To prevent reduction in strength of prepared polyester yarn, by melting, extruding and solidifying a polyester showing specific melt viscosity, and by setting the distance from the spinneret face to the inlet of a heating zone through which the polyester yarn is passed to be subjected to heat drawing. CONSTITUTION:A polyester polymer having >=5,000 (poise) viscosity measured by a melt indexer at 290 deg.C is melted, extruded, solidified, passed through a heating zone such as heating column, etc., and thermally drawn. The distance from the inlet of the heating zone to the spinneret face is >=3.5m, preferably >=5.5m, and polyester yarn having >=4g/d strength is obtained.

    POLYESTER YARN
    43.
    发明专利
    POLYESTER YARN 失效

    公开(公告)号：JPS61207620A

    公开(公告)日：1986-09-16

    申请号：JP4821285

    申请日：1985-03-13

    Applicant: TORAY INDUSTRIES

    Inventor： MAEDA YUHEI ,  MITSUYOSHI TAKEHIKO ,  MINEO MASANORI

    IPC: D01F8/14 ,  D01F6/92

    Abstract: PURPOSE:The titled yarn having improved color tone, mechanical characteristics, wear resistance and fur-like feeling with durability, having a core-sheath structure wherein the sheath has fine particles with specific particle diameter and a specific higher aliphatic monocarboxylic acid ester. CONSTITUTION:The aimed yarn of core-sheath type yarn comprising a polyester having ethylene terephthalate as a main repeating unit, wherein the sheath contains (A) 0.005-2pts.wt. fine particles having 0.05-3mu average particle diameter, and (B)=1pt.wt.-=(60-R)/2pts.wt. [R is ratio of crosssectional area of sheath to that of filament (%)] 34-65C higher aliphatic monocarboxylic acid ester (preferably cetyl montanate, etc.) based on 100pts.wt. polyester, and R is made into 1-30%.

    MODIFIED POLYESTER FIBER HAVING SILKY TOUCH AND LUSTER
    45.
    发明专利
    MODIFIED POLYESTER FIBER HAVING SILKY TOUCH AND LUSTER 失效

    公开(公告)号：JPS60146011A

    公开(公告)日：1985-08-01

    申请号：JP21684

    申请日：1984-01-06

    Applicant: TORAY INDUSTRIES

    Inventor： MITSUYOSHI TAKEHIKO ,  MINEO MASANORI

    IPC: D01D5/253 ,  D01F6/62 ,  D01F6/84 ,  D01F6/86

    Abstract: PURPOSE:A modified polymer which is obtained by copolymerizing specific amounts of a metal-sulfonated isophthalic acid and specific glycol is melt- extruded through nozzles having several lobes under specific conditions, then drawn to give the titled fibers dyeable with basic dyes and resistant to alkali. CONSTITUTION:A modified polyester that contains, as copolymerization components, 1.0-2.0mol% of isophthalic acid bearing a metal sulfonate group and 0.5- 1.9wt% of glycol of 400-6,000 molecular weight and has a polymerization degree of 82-105 is melt-extruded through tri- to penta-lobal nozzles under such conditions as equations I -IV (Q is throughput in g/min.hole) are satisfied, then drawn to give the objective fiber with a polymerization degree of 80-100 and a tenacity of more than 4.0g/de. The glycol component of 400-6,000 molecular weight is preferably polyalkylene glycol.

    MANUFACTURE OF POLYESTER FIBER
    46.
    发明专利
    MANUFACTURE OF POLYESTER FIBER 失效

    公开(公告)号：JPS6075611A

    公开(公告)日：1985-04-30

    申请号：JP18125083

    申请日：1983-09-29

    Applicant: TORAY INDUSTRIES

    Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

    IPC: D02J1/22 ,  D01D5/12 ,  D01F6/62

    Abstract: PURPOSE:To obtain the titled uniform fiber having high strength, stably, by meltspinning a polymer through a spinneret, cooling below the glass transition temperature, drawing in a hot gas stream having a specific flow rate in a hot zone keeping a specific wall temperature of the hot zone and specific temperature of the hot gas, and winding at a high speed. CONSTITUTION:A thermoplastic polyester polymer is subjected to the melt spinning through a spinneret, and cooled to a temperature below the glass transition temperature. The obtined yarn Y is transferred through a hot zone to effect the thermal drawing in the zone. In the above process, the heating cylinder 1 is furnished with plural small holes 3 and a hot-gas-supplying part 2 surrounding said holes 3, and the heating zone is heated with the electric heater 4. Hot gas satisfying the fomrula 10 70, TA>70, Tw-100 =3,000m/min to obtain the objective fiber.

    MANUFACTURE OF POLYESTER FIBER
    47.
    发明专利
    MANUFACTURE OF POLYESTER FIBER 失效

    公开(公告)号：JPS6075610A

    公开(公告)日：1985-04-30

    申请号：JP18124983

    申请日：1983-09-29

    Applicant: TORAY INDUSTRIES

    Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

    IPC: D02J1/22 ,  D01D5/12 ,  D01F6/62

    Abstract: PURPOSE:To obtain the titled uniform fiber, stably, by melt-spinning a termoplastic polyester polymer through a spinneret, cooling below the glass transition temperature, drawing in a hot zone heated with hot gas introduced actively into the zone at a specific flow velocity, and winding at a high speed. CONSTITUTION:A thermoplastic polyester polymer is subjected to the melt spinning through a spinneret, and cooled to a temperature below the glass transition temperature. The obtained yarn Y is transferred through a hot zone to effect the thermal drawing in the zone. In the adove process, the heating cylinder 1 is furnished with plural small holes 3 and a hot-gas-supplying part 2 surrounding said holes 3, and the heating zone is heated with the electric heater 4. Hot gas satisfying the formula T>=Tg+10 [T is the temperature of the hot gas ( deg.C), and Tg is the glass transition temperature of the polymer] and the formula 0.6F =3,000m/min to obtain the objective fiber.

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