Method and apparatus for producing slub yarn

Details Method and apparatus for producing slub yarn Method and apparatus for producing slub yarn

1985-01-30

1989-06-13

Mackey, Robert R.

Textiles: manufacturing

Thread finishing

Surface modification of running length

28252, 28258, D02G 116, D02J 106, D02J 108

Patent

active

048379034

ABSTRACT:
A method and an apparatus for producing a slub yarn from a filament yarn, in which the starting yarn is propelled by an air stream at a first rate and made to impinge on a liquid (water) surface, whereby the yarn is opened to individual single filaments which entangle and fold with each other to form a thicker portion in the yarn body, while being held in a slack condition in the water and finally withdrawn therefrom at a second rate lower than the first rate. The water is preferably whirled to form a vortex. Interlacing of the yarn after withdrawal from the water is also preferable to strengthen the yarn structure.

REFERENCES:
patent: 2282568 (1942-05-01), Finzel
patent: 2439034 (1948-04-01), Battista
patent: 2730757 (1956-01-01), Hofmann
patent: 2878547 (1959-03-01), McMaster et al.
patent: 3116589 (1964-01-01), Edwards et al.
patent: 3174271 (1965-03-01), Edwards et al.
patent: 3296785 (1967-01-01), Hardy III
patent: 3474613 (1969-10-01), Joarder et al.

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