Process and apparatus for producing spun yarn

Details Process and apparatus for producing spun yarn Process and apparatus for producing spun yarn

1976-08-23

1977-06-14

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

57 5, 57 5895, 57156, D01H 112

Patent

active

040288714

ABSTRACT:
A process and apparatus for producing spun yarn using an electrostatic field produced by a pair of spaced electrodes, one of which surrounds the other to isolate the electrostatic field therebetween from external physical and electrical disturbances. Staple fibers are fed into the field through an aperture in the surrounding electrode for migration in the electrostatic field to a linear zone of increased field intensity from which the fibers are withdrawn and twisted to form a spun yarn, which may be done without the use of a core yarn or with a core yarn drawn through the linear zone and subjected to a false twisting operation to collect and twist the fibers thereon. Beyond the linear zone is another zone of increased field intensity for electrostatic collection of fly and other waste material. Suction is applied to remove the fly and other waste material from the electrostatic field and also serves to draw the feeding fibers through the aperture into the electrostatic field.

REFERENCES:
patent: 3107478 (1963-10-01), Arshinov et al.
patent: 3537249 (1970-11-01), Mayer
patent: 3670486 (1972-06-01), Murray
patent: 3673781 (1972-07-01), Breitenbach
patent: 3696600 (1972-10-01), Mayer
patent: 3696603 (1972-10-01), Kotter et al.
patent: 3762148 (1973-10-01), Thrower
patent: 3768243 (1973-10-01), Brown et al.
patent: 3845611 (1974-11-01), Senturk et al.
patent: 3901012 (1975-08-01), Safar

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