Method and apparatus for producing a fasciated yarn

Details Method and apparatus for producing a fasciated yarn Method and apparatus for producing a fasciated yarn

1983-07-14

1986-11-11

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

With drafting

57333, 57350, D01H 528, D01H 518, D02G 104, D02G 116

Patent

active

046214909

ABSTRACT:
A method and an apparatus for producing a fasciated yarn, utilizing an air nozzle for false-twisting a fiber bundle. The apparatus is provided with a fiber passage comprising an inlet portion, a small channel, and a large channel, and is provided also with a contact area on an inner wall of the small channel, this contact area being formed by the intersection at an angle of the small channel and the large channel.
During the spinning operation, the fiber bundle is forced against the contact area, effectively suppressing a twist imparted by a vortex such that it does not ascend toward the upstream region.
Also, since ballooning can be suppressed by the contact area, the size of the small channel can be increased, resulting in the intake by suction of a sufficient amount of air in the inlet portion.

REFERENCES:
patent: 4124972 (1978-11-01), Arai et al.
patent: 4434611 (1984-03-01), Hasegawa et al.
patent: 4489545 (1984-12-01), Susumu et al.

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