Process for making slub yarn from continuous filament yarn

Details Process for making slub yarn from continuous filament yarn Process for making slub yarn from continuous filament yarn

1977-08-31

1978-11-14

Mackey, Robert

Textiles: manufacturing

Thread finishing

Surface modification of running length

28252, 28271, 28273, D02G 116, D02G 334

Patent

active

041249240

ABSTRACT:
Method by which slubs are formed from random individual filaments in a continuous filament yarn bundle. A yarn bundle is fed under drafting tension to and through a first fluid jet device in which cocurrent and countercurrent fluid flows therethrough and which along with the drafting tension serves to break some of the individual filaments of the yarn bundle at random intervals along the length of the yarn bundle. The drafting tension also serves to prevent the broken filaments from completely entangling with the yarn bundle. The yarn bundle then passes through a second fluid jet device having cocurrent and countercurrent fluid flows therethrough, the flows adjusted to cause the broken filaments to slide along the yarn bundle and to become entangled with the other filaments and to form slubs. In an alternate embodiment, a second continuous filament yarn bundle may be joined to the first yarn bundle after the first fluid jet device so that the subsequent entanglements and slub formations may bind together both yarn bundles to provide broader textile utility for the final product.

REFERENCES:
patent: 3093878 (1963-06-01), Fieldman
patent: 3122816 (1964-03-01), Rhoden
patent: 3309752 (1967-03-01), Nuissl
patent: 3312052 (1967-04-01), Shiranezawa et al.
patent: 3328863 (1967-07-01), Cobb et al.
patent: 3381346 (1968-05-01), Benson
patent: 3688358 (1972-09-01), Kashima et al.
patent: 3854313 (1974-12-01), Heichlinger et al.

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