Patent ID: 7310932

Claim:
A woven stretch fabric having warp and weft yarns and comprising polyester bicomponent filament core spun yarn, wherein a) the bicomponent filament core spun yarn comprises i) a sheath of at least one hard staple fiber; ii) a core of polyester bicomponent filament comprising poly(trimethylene terephthalate) and at least one polymer selected from the group consisting of poly(ethylene terephthalate), poly(trimethylene terephthalate), and poly(tetramethylene terephthalate) or a combination of such members, having an after heat-set crimp contraction value of from about 10% to about 80%; and the fabric is substantially free of bicomponent filament grin-through wherein a) the weft yarn comprises polyester bicomponent core spun yarn; b) the warp yarn comprises staple spun yarn or filament; and c) the available fabric stretch in the weft direction is from about 10% to about 35%.