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    MANUFACTURE OF POLYESTER FIBER
    1.
    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
    2.
    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.

    PRODUCTION OF POLYESTER FIBER
    3.
    发明专利
    PRODUCTION OF POLYESTER FIBER 失效

    公开(公告)号：JPS57199812A

    公开(公告)日：1982-12-07

    申请号：JP7926581

    申请日：1981-05-27

    Applicant: TORAY INDUSTRIES

    Inventor： OKA KENICHIROU ,  MINEO MASANORI

    IPC: D01F6/62

    Abstract: PURPOSE:A thermoplastic polyester is melt spun into a yarn and the yarn is treated with a finishing oil with an oil applicator set in a specific position and wound up at a super high speed, thus producing the titled fiber of high uniformity and good fiber properties stably through a practical production process without drawing. CONSTITUTION:A thermoplastic polyester such as polyethylene terephthalate is extruded through a spinneret 1 and the resultant yarn Y is solidified by cooling with the cooling device 2, treated with a finishing oil by means of the oil applicator 3 and wound up with the winder 6 wherein the position of the applicator L is set so that L is longer than the point where the extruded yarn is solidified by cooling and cooled down to room temperature but shorter than 4.26X10 XD /V in meter where D is the diameter of filament in centrimeter; V is winding-up speed in cm/sec. Then, the yarn is sent through the first and second godet rollers 4, 5, interlacer 7, traverse guide 8 and wound up around the winder 6 at a speed of 5,000m/min.

    PRODUCTION OF POLYESTER FIBER
    4.
    发明专利
    PRODUCTION OF POLYESTER FIBER 失效

    公开(公告)号：JPS5716913A

    公开(公告)日：1982-01-28

    申请号：JP8657580

    申请日：1980-06-27

    Applicant: TORAY INDUSTRIES

    Inventor： OKA KENICHIROU ,  MINEO MASANORI ,  ONO TERUMICHI

    IPC: D01F6/62

    Abstract: PURPOSE:When a thermoplastic polyester is melt spun, no heat is added from the extrusion to winding-up and the yarn is wound up at a high speed to give fiber giving good touch to the woven or knitted fabrics therefrom. CONSTITUTION:A thermoplastic polyester, preferably containing more than 90 mol% of polyethylene terephthalate units, is melt spun, solidified and wound up wherein the whole processes from the extrusion to winding up are conducted with no heat application and the yarn is wound up at a speed of higher than 5,000, preferably 5,500m/min under tension of less than 20%, preferably 4-20%, after solidification.

    PRODUCTION OF POLYESTER FIBER
    9.
    发明专利
    PRODUCTION OF POLYESTER FIBER 失效

    公开(公告)号：JPS60162810A

    公开(公告)日：1985-08-24

    申请号：JP1694384

    申请日：1984-02-03

    Applicant: TORAY INDUSTRIES

    Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

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

    Abstract: PURPOSE:To obtain polyester fibers satisfying mechanical properties and uniformity fit for practical use, by cooling a melt extruded polymer at the glass transition temperature or below, and passing the resultant extruded fibers through a specific heating zone. CONSTITUTION:A thermoplastic polyester filament yarn once cooled to the glass transition temperature or below is passed through a heating zone, e.g. a heating cylinder 1, satisfying the following relation; D>=D0+10mm.phi, L>=30mm. and Q>= 9,400mm. (D is the diameter of the supply part 2 for the heating gas; D0 is the yarn path diameter in the heating zone; L is the length of the supply part 2 for the heating gas; Q is the volume of the supply part 2 for the heating gas) while introducing the heating gas from the supply part 2 for the heating gas through holes 4 at 10-80Nl/min into the heating cylinder 1 and then taken off at >=3,000 m/min take-off speed.

    PRODUCTION OF POLYESTER FIBER
    10.
    发明专利
    PRODUCTION OF POLYESTER FIBER 失效

    公开(公告)号：JPS60139812A

    公开(公告)日：1985-07-24

    申请号：JP24547383

    申请日：1983-12-28

    Applicant: TORAY INDUSTRIES

    Inventor： SASAMOTO FUTOSHI ,  OKA KENICHIROU ,  MINEO MASANORI

    IPC: D01D5/12 ,  D01F6/62

    Abstract: PURPOSE:A thermoplastic polyester is melt-extruded, allowed to run through a heating zone where a hot gas is introduced through a specific straightening filter and heat drawing is effected, then the yarn is wound up to give the titled fiber of good mechanical properties and good uniformily. CONSTITUTION:A thermoplastic polyester such as polyethylene terephthalate is melt extruded through the spinneret into a yarn Y, which is cooled down with air beneath its glass transition point. Then, the cooled yarn Y is allowed to run through the heating zone in the cylinder 1 where stream-straightening filters 4 satisfying equation I (X is absolute filtration diameter) and equation II (L is the length of straightening filter) are arranged so that they surround the yarn path and hot fluide of inert gas is introduced through the filters at a flow rate of 10-80Nl/min to effect non-contact heat drawing. The resultant yarn is taken up at a speed higher than 3,000m/min to give the objective fiber.

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