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US 7,461,499 B2Granted
Stretch woven fabrics
AssigneeInvista North America S.A.R.L.
InventorTianyi Liao
Life of this patent
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Abstract
The invention provides a polyester bicomponent core spun yarn comprising a sheath of at least one hard fiber and having an English cotton count of from about 5 to about 60 and a core of bicomponent polyester filament. The invention further includes a fabric substantially free of grin-through of the bicomponent polyester filament.
Claims10
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
- b) the fabric is substantially free of bicomponent filament grin-through wherein
- i) the weft yarn comprises staple spun yarn or filament;
- ii) the warp yarn comprises polyester bicomponent core spun yarn;
- and
- iii) the available fabric stretch in the warp direction is from about 10% to about 35%.
7 more elements
Dependencies are inferred from the claim text.