Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – With crimping or crinkling of strands of filaments
Patent
1979-12-10
1982-06-01
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
264171, 428373, D01D 522
Patent
active
043327621
ABSTRACT:
Tows of highly entangled, continuous, eccentric bicomponent acrylic filaments in which the filaments have a density of about 1.0-1.17, an equilibrium crimp reversibility (ECR) of at least about 20% and a filament entanglement value greater than about 12 and less than about 60 are provided by drying previously undried tows of continuous acrylic filaments having an eccentric bicomponent structure in which a large difference exists between the hot water swellability of the components of the filaments, as indicated by their ECR, to a maximum moisture content of about 3% by weight of the filaments at a temperature below the hot-wet glass transition temperature of the fiber polymers.
REFERENCES:
patent: 3038238 (1962-06-01), Wu
patent: 3039524 (1962-06-01), Belck et al.
patent: 3264705 (1966-08-01), Kovarik
patent: 3463846 (1969-08-01), Nakagawa
patent: 3624195 (1971-11-01), Nakayama et al.
patent: 3663676 (1972-05-01), Lulay
patent: 3737504 (1973-06-01), Herrbach et al.
patent: 4071596 (1978-01-01), Davis
E. I. Du Pont de Nemours and Company
Woo Jay H.
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