Universal method to untwist, unravel and open up a textile yarn

Details Universal method to untwist, unravel and open up a textile yarn Universal method to untwist, unravel and open up a textile yarn

1988-07-14

1992-12-01

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Untwisting

57 22, 57350, D01H 1500

Patent

active

051671115

ABSTRACT:
The method involves the use of two nozzles (5 and 6) which alternatively blow air jets against a yarn in the central portion of a channel (1), these nozzles being symmetrically placed in relation to a plane containing the channel axis. The jets blowing frequency is of several hundreds of Hz. A deflector (3) in the bottom of channel (1) can deviate the beating thread sidewise and consequently impart thereto alternate twisting and untwisting motion in order to unravel the thread.

REFERENCES:
patent: 3478398 (1969-11-01), Barlow et al.
patent: 3962855 (1976-06-01), Stahlecker
patent: 4408442 (1983-10-01), Rohner
patent: 4549392 (1985-10-01), Kimura
patent: 4653260 (1987-03-01), Artzt et al.
patent: 4757678 (1988-07-01), Stahlecker

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