专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4818456A Simplified process for obtaining polyester yarns at high speed 失效
标题翻译：用于快速获得聚酯纱线的简化方法
公开(公告)号：US4818456A
公开(公告)日：1989-04-04
申请号：US88536
申请日：1987-08-20
申请人： Gerard Perez , Rene Vieilly
发明人： Gerard Perez , Rene Vieilly
IPC分类号： D01D5/08 , D01F6/62 , D02J1/00 , D01D5/088 , D01D5/12
CPC分类号： D01F6/62 , D01D5/08
摘要： The invention provides a process for simplified spinning of yarns on polyethylene terephthalate, at high speed and with direct take-up on the winder. After leaving the spinning die, the filaments are cooled by a gaseous fluid, simultaneously brought together and oiled at a convergence point situated at a distance L.sub.1 from the die such that L.sub.o .ltoreq.L.sub.1 .ltoreq.(L.sub.o +30)cm, the value of L.sub.o corresponding to the first point at which the derivative of the curve expressing the birefringence of the filaments as a function of the distance (in cm) from the die passes through a maximum, and wound at a speed greater than 4,500 m/min, preferably equal to or greater than 5,000 m/min, the maximum distance between the die and the point of deposition of the yarn on the bobbin being between 100 and 200 cm. The yarns obtained may be used as such or may be textured.
摘要翻译：本发明提供了一种用于在聚对苯二甲酸乙二醇酯上以高速并且在卷取机上直接吸收来简化纱线纺丝的方法。在离开纺丝模具之后，细丝被气态流体冷却，并同时聚集在一起，并与位于离模具距离L1的会聚点上油化，使得Lo（L1）=（Lo + 30）cm，对应于表示长丝双折射的曲线的导数作为距离模具的距离（cm）的函数的第一点的值通过最大值，并以大于4500m / min的速度卷绕优选等于或大于5000m / min，纱线在纱管上的最大距离和纱线沉积点之间的最大距离在100至200cm之间。获得的纱线可以原样使用或者可以被织构化。

IPRDB

热门服务

关于我们

友情链接

联系方式