Method of imparting latent crimp in polyolefin synthetic fibers

Details Method of imparting latent crimp in polyolefin synthetic fibers Method of imparting latent crimp in polyolefin synthetic fibers

1976-01-09

1976-09-07

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

264210F, 264290R, D01D 522

Patent

active

039794962

ABSTRACT:
In a non-friction texturing process, the filaments of a thermoplastic polymer yarn are heated along spaced zones to form a latent crimp in the filament. The filaments are then drawn and are subsequently heated above the glass transition temperature of the polymer while the filaments are under low enough tension to allow the crimp to form. The heating along spaced zones is preferably accomplished by passing the filaments over a heated rotating grooved roll.

REFERENCES:
patent: 2296394 (1942-09-01), Meloon

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