IP Library › Granted Patent US 7,461,499
Granted Patent B2
US 7,461,499 · App. 11/941,279 · Granted Dec 9, 2008

Stretch woven fabrics

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,461,499
App. No.
11/941,279
Granted
Dec 9, 2008
Kind
B2
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.

Claims (18)

1. 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%.

2. The fabric of claim 1 , wherein the bicomponent filament comprises poly(ethylene terephthalate) and poly(trimethylene terephthalate).

3. The fabric of claim 1 , wherein the bicomponent filament comprises poly(trimethylene terephthalate) and poly(tetramethylene terephthalate).

4. The fabric of claim 1 , wherein the bicomponent filament comprises poly(trimethylene terephthalate) and poly(trimethylene terephthalate).

5. The fabric of claim 1 wherein the bicomponent filament has an after heat-set crimp contraction value of from about 35% to about 80%.

6. The fabric of claim 1 , wherein the fabric is selected from the group consisting of twill, plain, satin, and weft rib construction.

7. A garment comprising the fabric of claim 1 .

8. The fabric of claim 1 wherein the bicomponent filament comprises poly(ethylene terephthalate) and poly(trimethylene terephthalate).

9. The fabric of claim 1 , wherein the bicomponent filament comprises poly(trimethylene terephthalate) and poly(tetramethylene terephthalate).

10. The fabric of claim 1 wherein the bicomponent filament comprises poly(trimethylene terephthalate) and poly(trimethylene terephthalate).