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US 6,782,923 B2Granted
Weft-stretch woven fabric with high recovery
AssigneeInvista North America S.A.R.L.
InventorCarmen A. Covelli
Life of this patent
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Abstract
A woven fabric comprising warp fibers and a weft is provided. The weft may be of pick-and-pick or co-insertion constructions. The weft includes a spun staple yarn and a polyester bicomponent filament. The polyester bicomponent filament includes poly(ethylene terephthalate) and poly(trimethylene terephthalate), and has an after heat-set crimp contraction value of from about 10% to about 80%. A process for making such a fabric is also provided.
Claims10
A woven fabric, comprising warp fibers and a weft wherein:
- a) the weft is selected from the group consisting of pick-and-pick and co-insertion constructions;
- b) the weft comprises a spun staple yarn and a polyester bicomponent filament wherein said polyester bicomponent filament comprises poly(ethylene terephthalate) and poly(trimethylene terephthalate);
- c) the polyester bicomponent filament has an after heat-set crimp contraction value of from about 10% to about 80%;
- and
- d) the fabric comprises from about 5 wt % to about 25 wt % bicomponent filament and has a normalized unload power of at least about 2.2 N-m/g.
2 more elements
A process for making a weft-stretch fabric comprising the steps of:
- a) providing a bicomponent filament comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate), said bicomponent filament having an after heat-set crimp contraction value of at least about 10%;
- b) providing a spun staple yarn;
- c) providing warp fibers;
- and
- d) weaving the bicomponent filament and the spun staple yarn with the warp fibers to form the fabric by a method selected from the group consisting of co-insertion and pick-and-pick;
- and
- wherein the fabric comprises from about 5 wt % to about 25 wt % bicomponent filament and has a normalized unload power of at least about 2.2 N-m/g.
4 more elements
Dependencies are inferred from the claim text.