发明名称 Simplified process for obtaining polyester yarns at high speed
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 L1 from the die such that Lo</=L1</=(Lo+30)cm, the value of Lo 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.
申请公布号 US4818456(A) 申请公布日期 1989.04.04
申请号 US19870088536 申请日期 1987.08.20
申请人 RHONE-POULENC FIBRES 发明人 PEREZ, GERARD;VIEILLY, RENE
分类号 D01D5/08;D01F6/62;D02J1/00;(IPC1-7):D01F6/62;D01D5/088;D01D5/12 主分类号 D01D5/08
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