Modified grooved polyester fibers and spinneret for production t

Details Modified grooved polyester fibers and spinneret for production t Modified grooved polyester fibers and spinneret for production t

1990-04-24

1991-04-09

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Single inlet, plural shaping orifices

26417713, 425461, D01D 5253, B29C 4730

Patent

active

050060570

ABSTRACT:
Disclosed is a novel polyester fiber, such as a poly(ethylene terephthalate) fiber, having at least one continuous groove wherein the surface of the groove is rougher than the surface outside the groove. Also disclosed is a drafting process involving surface hydrolysis for the preparation of such fibers. The fibers have improved cover, softness, and wetting characteristics.

REFERENCES:
patent: 2816349 (1957-12-01), Pamm et al.
patent: 3156607 (1964-11-01), Stratchan
patent: 3786125 (1974-01-01), Shimoda et al.
patent: 4054709 (1977-10-01), Belitsin et al.
patent: 4332761 (1982-06-01), Phillips et al.
patent: 4590032 (1986-05-01), Phillips

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