Production of multifilament synthetic yarn

Details Production of multifilament synthetic yarn Production of multifilament synthetic yarn

D - Textiles, Paper

02

J

28/34, 28/47

D02J 1/22 (2006.01) D02G 1/16 (2006.01)

Patent

CA 1078596

A B S T R A C T A method of producing commercially usable textured synthetic multifilament yarn from commercially produced undrawn multifilament synthetic yarn of a type which has normally a limited operational life and which has exceeded the normal operational life for undrawn yarn in which the overage undrawn yarn is fed continuously without pause through two discrete successive treatments with hot fluid at a temperature high enough to plasticize the yarn. The yarn is drawn to a chosen ratio of extension while it is passing through the first treatment with hot fluid. Next the yarn is jet textured while it is passing through the second treatment with hot fluid. The yarn may be subjected to a cooling action between the two successive treatments with hot fluid.

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