Sheath core fiber and its method of manufacture

Details Sheath core fiber and its method of manufacture Sheath core fiber and its method of manufacture

1990-04-04

1991-04-23

Kendell, Lorraine T.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428373, 428374, 428392, 428393, 428394, 428395, 428375, D02G 300

Patent

active

050099540

ABSTRACT:
A sheath core fiber having an inner continuous core made from an oriented thermoplastic material, such as polyester, nylon, acrylic, and olefin completely surrounded by an adherent continuous sheath which is not readily removable from said core, is retained on said core during ultimate usage of said fiber, and is made of a nonthermoplastic material, such as regenerated cellulose and protein. The fiber maintains the crease and tear resistance of the core material, yet has the water sorptivity and dyeability of the sheath material.
A method of manufacturing such a fiber is also disclosed.

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