Textured yarn and method and apparatus for producing the same

Details Textured yarn and method and apparatus for producing the same Textured yarn and method and apparatus for producing the same

1983-03-10

1985-08-13

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Twist setting

57282, 57284, D02G 102, D01H 1328

Patent

active

045341648

ABSTRACT:
A textured yarn suitable for weaving a fabric having an improved width shrinkage is provided by a simultaneous draw-texturing process of a partially oriented polyethylene terephthalate (PET) filament. During the draw-texturing process, the yarn delivered from a main heater is adjusted to maintain a yarn temperature not less than 80.degree. C. which corresponds to a glass transition temperature of PET prior to being introduced into a false twister, whereby both the crimpability and sonic velocity of the resulting yarn are improved. A fabric woven therefrom has a good bulkiness as well as a good resiliency. Further, according to the same principal, a textured yarn having crimp unevenness suitable for producing a fabric having a surface contour is provided by varying the yarn temperature prior to being introduced into the false twister in a range between 80.degree. C. and 160.degree. C. The latter yarn has no tight spots therein and results in a natural looking fabric.

REFERENCES:
patent: 3085389 (1963-04-01), Wegener et al.
patent: 3473317 (1969-10-01), Kosaka et al.
patent: 3796036 (1974-03-01), Parker
patent: 3910027 (1975-10-01), Bach et al.
patent: 4086751 (1978-05-01), Hino et al.
patent: 4115985 (1978-09-01), Venot
patent: 4141206 (1979-02-01), Eaves
patent: 4332132 (1982-06-01), Bru et al.
patent: 4398386 (1983-08-01), Endo et al.

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