Slub yarns obtained from blowing and sucking process

Details Slub yarns obtained from blowing and sucking process Slub yarns obtained from blowing and sucking process

1974-11-15

1976-12-28

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Elements

57157F, 428399, D02G 334

Patent

active

039993663

ABSTRACT:
A process for the manufacture of slub yarns obtained from continuous filaments, which comprises feeding continuous filaments through the inlet orifice of a guide tube at a feed rate superior to the withdrawal rate at the outlet orifice, and sucking them into a connecting tube by means of a sucking jet in such a manner that an increasingly enlarging open loop is formed; wherein a gaseous medium, in intervals and periods of time programmed by a control system, is blown into the connecting tube, thereby passing through the feeder tube of a blowing jet mounted to the end of the connecting tube which is adjacent to the guide tube; the gaseous medium causing a ligature of the neck of the open loop of the yarn, which loop so ligatured is subsequently united over its total length with the continuous filament.

REFERENCES:
patent: 3122816 (1964-03-01), Rhoden
patent: 3433007 (1969-03-01), Myers
patent: 3474613 (1969-10-01), Joarder et al.
patent: 3517498 (1970-06-01), Burellier et al.
patent: 3591955 (1971-07-01), Fujita et al.

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