摘要:
Robust homofilament fibers are meltspun from a differently shaped dual capillary spinneret design to induce differential fiber morphology to produce crimping. Crimping may further be aided by quenching and drawing of the fibers.
摘要:
A thermoplastic elastomer film demonstrates reduced roll blocking capabilities. The film can either be breathable or nonbreathable. The breathable elastic film includes a core layer of a thermoplastic elastomer and a filled semi crystalline predominantly linear polymer and at least one skin layer of a polyethylene or filled polyethylene. The film core layer includes between about 25 and 70 weight percent filler, between about 5 and 30 by weight percent semi-crystalline linear polymer, and between about 15 and 60 by weight elastomer. The nonbreathable film desirable includes a core of 80-98 percent film volume and a skin of 20-2 percent film volume, with the core including both styrenic block copolymers and single site catalyzed polyethylenes and the skin including single site catalyzed polyethylenes and additional amounts of roll blocking prevention agents (antiblock agents).