Mixed shrinkage yarn

Details Mixed shrinkage yarn Mixed shrinkage yarn

1975-12-15

1976-12-21

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Elements

57157R, 260 75R, 264210F, 428369, D02G 324, D02G 118, D02G 302

Patent

active

039980421

ABSTRACT:
Mixed-shrinkage, continuous-filament, heat-bulkable yarn, composed of low and higher shrinking filaments of different polyester compositions, develops worstedlike bulk in fabric as a result of fabric finishing operations. The yarn is prepared from two ethylene terephthalate polyesters, of different compositions and relative viscosities, by cospinning, drawing and heat-setting the filaments under identical, critically-controlled conditions.

REFERENCES:
patent: 3199281 (1965-08-01), Maerov et al.
patent: 3200576 (1965-08-01), Maerov et al.
patent: 3416302 (1968-12-01), Knospe
patent: 3593513 (1971-07-01), Reese
patent: 3608296 (1971-09-01), Taylor
patent: 3626442 (1971-12-01), Haseley et al.
patent: 3705225 (1972-12-01), Taylor

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