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1. 发明申请

US20030047834A1 Method for manufacturing polyester fibers 有权
标题翻译：聚酯纤维的制造方法
公开(公告)号：US20030047834A1
公开(公告)日：2003-03-13
申请号：US10012420
申请日：2001-12-12
申请人： HYOSUNG CORPORATION
发明人： Duk-ho Oh , Heyng-keyng Kim
IPC分类号： D01D005/08
CPC分类号： D01D5/092 , D01D5/084 , D01F6/62
摘要： Disclosed is a method for manufacturing polyester fibers comprising the steps of: 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 A directly below a nozzle.
摘要翻译：公开了一种用于制造聚酯纤维的方法，包括以下步骤：在纺丝期间不增加聚合物的特性粘度来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，而不会形成破裂的丝和弯曲的长丝，通过防止形成冷却空气涡流喷嘴正下方的涡流板A。

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