METHOD OF PRODUCING THREADS OR FIBRES OF SYNTHETIC MATERIALS AND A DEVICE FOR CARRYING OUT SAID METHOD

摘要

1525980 Forming filaments CHEMIEFASER LENZING AG 30 Dec 1975 [3 Jan 1975] 53164/75 Heading B5B Filaments 4 of high melting, non melting difficult to dissolve and insoluble polymers especially PTFE are formed by rotating a cylindrically shaped body 1 past a scratching tool 2 then past a peeling knife 3 and are then stretched preferably after heating to 100- 450‹ C. by means of a heating bow 7, or by hot air, steam or high boiling liquids. The stretching is effected between roller arrangements 6 and 8 and a further heating bow 9. The filaments may feed direct to reel 15 or through one or two impregnating devices 11, 12, 13 and 14.