Process for producing textured polyester yarn

Details Process for producing textured polyester yarn Process for producing textured polyester yarn

1976-06-21

1977-08-23

Rimrodt, Louis K.

Textiles: manufacturing

Thread finishing

Surface modification of running length

28240, 57157TS, 28271, D02G 116

Patent

active

040430103

ABSTRACT:
A process for drawing and air-jet bulking polyester yarn which has been spin-oriented by melt-spinning at high speed. The yarn is drawn while heating it with a heater at a temperature greater than 180.degree. C and the drawn yarn is immediately air-jet textured to produce crunodal surface loops. Boil-off shrinkages of less than 3.5 percent are obtained without heating the yarn after it is drawn.

REFERENCES:
patent: 3433008 (1969-03-01), Gage
patent: 3772872 (1973-11-01), Piazza

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