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公开(公告)号:US06511624B1
公开(公告)日:2003-01-28
申请号:US10032569
申请日:2002-01-02
申请人: Eun-lai Cho , Duk-ho Oh , Song-joo Choi
发明人: Eun-lai Cho , Duk-ho Oh , Song-joo Choi
IPC分类号: B29C4908
摘要: Disclosed is a process for preparing a high modulus and a low shrinkage polyester multifilament yarn of 1000 deniers or more at a spinning rate of 2,000 m/min or more, comprising the steps of: melt-extruding polyester chips having an intrinsic viscosity of 0.90 to 1.2 through a spinning nozzle and passing polyester chips through a heating zone; quenching melt-extruded yarns with the use of a radial in-to-out quenching method to solidify them; and providing spin finishes to solidified yarns before winding. The industrial polyester multifilament yarns have a coefficient of variation of 4.0% or less in a cross sectional diameter of filaments, and excellent uniformity of fineness. Treated cords formed from the industrial polyester multifilament yarns with high modulus and low shrinkage have an excellent dimensional stability and tenacity, and can be used as reinforcements of rubber goods such as tires.
摘要翻译: 公开了一种以2000m / min以上的纺丝速度制备1000旦以上的高模量和低收缩聚酯复丝纱线的方法,包括以下步骤:将特性粘度为0.90的聚酯切片熔融挤出至 1.2通过纺丝喷嘴将聚酯切片通过加热区; 使用径向进出淬火方法淬火熔融挤出的纱线以使它们固化; 并在卷绕之前为固化纱线提供旋涂。 工业聚酯复丝纱的长丝的截面直径的变异系数为4.0%以下,细度均匀性优异。 由具有高模量和低收缩率的工业聚酯复丝纱线形成的处理帘线具有优异的尺寸稳定性和韧性,并且可以用作橡胶制品如轮胎的增强物。
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公开(公告)号:US06641765B2
公开(公告)日:2003-11-04
申请号:US09972001
申请日:2001-10-04
申请人: Eun-Lai Cho , Duk-Ho Oh , Song-Joo Choi
发明人: Eun-Lai Cho , Duk-Ho Oh , Song-Joo Choi
IPC分类号: D01D512
CPC分类号: D01D5/08 , D01F6/62 , D02G3/48 , Y10T428/2913 , Y10T428/2929 , Y10T428/2933 , Y10T428/2967 , Y10T428/2969
摘要: Described in the present invention is a polyester multifilament yarn having a high modulus and low shrinkage which provides a treated cord having high tenacity and improved dimensional stability that can be advantageously employed as a fibrous reinforcement material of rubber products such as tires and belts.
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公开(公告)号:US06887414B2
公开(公告)日:2005-05-03
申请号:US10012420
申请日:2001-12-12
申请人: Duk-ho Oh , Heyng-keyng Kim
发明人: Duk-ho Oh , Heyng-keyng Kim
摘要: Method for manufacturing polyester fibers comprising melt-extruding a polymer without increasing an intrinsic viscosity of the polymer during spinning to minimize a reduction of the intrinsic viscosity of the polymer; maintaining a low atmospheric temperature directly below a nozzle to maximize a degree of orientation of undrawn yarn; winding the polymer at 2,000 m/min or more to produce a undrawn yarn, followed by drawing the undrawn yarn through continuous three phases at low temperature. The method has advantages in that high strength and low shrinkage polyester fibers with a uniform fineness and physical properties can be manufactured at high spinning efficiency, without formation of broken filament and curved filament, by preventing formation of a vortex of cooling air with the use of eddy plates directly below a nozzle.
摘要翻译: 制造聚酯纤维的方法,包括在纺丝期间不增加聚合物的特性粘度而熔融挤出聚合物,以最小化聚合物的特性粘度的降低; 直接在喷嘴下方保持低的大气温度,以使未拉伸纱线的取向程度最大化; 以2000m / min以上的聚合物缠绕,制造未拉伸丝,然后在低温下连续三相拉伸未拉伸丝。 该方法的优点在于,可以以高的纺丝效率制造具有均匀的细度和物理性能的高强度和低收缩率的聚酯纤维,而不会形成断丝和弯曲的长丝,通过使用 直接在喷嘴下方的涡流板。
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公开(公告)号:US06312634B1
公开(公告)日:2001-11-06
申请号:US09517600
申请日:2000-03-02
申请人: Eun Lai Cho , Duk Ho Oh , Hyek Se Lee
发明人: Eun Lai Cho , Duk Ho Oh , Hyek Se Lee
IPC分类号: D01D110
CPC分类号: D01F6/62
摘要: A method for preparing industrial polyester fibers involving melt-spinning polyester chips through a nozzle, oiling the resultant filaments with an aqueous emulsion oiling agent, and producing, from the filaments, multifilament yarn at a speed of 2000-3300 m/min.
摘要翻译: 一种制备工业聚酯纤维的方法,其包括通过喷嘴熔融纺丝聚酯切片,用水性乳液上油剂对所得长丝进行加油,并以长度为2000-3300米/分钟的长丝生产复丝纱线。
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