Production of bulky yarns

Details Production of bulky yarns Production of bulky yarns

1975-01-15

1977-01-04

Rimrodt, Louis K.

Textiles: manufacturing

Warp preparing or handling

Machine replenishing

D02G 116

Patent

active

040005518

ABSTRACT:
A method of producing a bulky continuous filament yarn which includes the steps of feeding primary and secondary continuous multi-filament polymeric yarns into a treatment zone, with one of the yarns being pre-treated by the application of water so that said one yarn is wet when fed into the treatment zone. The yarns in the treatment zone are subjected to a turbulent fluid flow which causes the individual filaments of the yarns to separate, and also causes ringlike loops to be formed at randomly spaced intervals along the individual filaments of the secondary yarn. The filaments of the yarns become intermingled within the treatment zone and are withdrawn and collected in the form of a single yarn. The primary yarn is fed into the treatment zone at a rate between 4% and 26% greater than the rate at which the intermingled filaments are withdrawn from the treatment zone, and the secondary yarn is fed into the treatment zone at a rate which is at least 2.5% greater than the rate of feed of the primary yarn and up to 30% greater than the rate at which the intermingled fibres are withdrawn from the treatment zone.

REFERENCES:
patent: 2962794 (1960-12-01), Field
patent: 2979883 (1961-04-01), Waltz
patent: 3388444 (1968-06-01), Benson

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