Stretchable fabrics comprising elastics incorporated into NYCO for use in combat uniforms
View Patent ↗A stretchable fabric comprising NYCO fabric with about 2 to about 4 wt. % elastic, such as an elastane as LYCRA®, is disclosed. The stretchable fabric of the invention exhibits about 20 to about 50% fabric stretch, and is suitable for application in combat uniforms where mobility and comfort are desirable. The stretchable fabric maintains or exceeds substantially all military uniform standard requirements and exhibits characteristics such as breaking strength, tear resistance, air permeability and abrasion resistance similar to that of NYCO fabric. Also disclosed is a garment manufactured from the stretchable fabric, as well as methods for manufacturing, dying and finishing the stretchable fabric.
1. A stretchable fabric comprising:
about 2 to about 4 wt. % elastic in the form of a composite elastic yarn comprising an elastic polymer and nylon and cotton companion fibers; and
the remainder of said fabric comprising inelastic yarn spun with nylon and cotton staple fibers,
wherein the nylon and cotton fibers comprising both the elastic and inelastic yarns have a substantially matched modulus, wherein further the stretchable fabric exhibits about 20% to about 50% fabric stretch as measured by the amount of elongation of the stretchable fabric by attaching a weight representing loads of 6 N (3.37 lb./in. 2 ) to the stretchable fabric and allowing the stretchable fabric with the weight to hang freely.
2. The stretchable fabric of claim 1 , wherein the stretchable fabric exhibits at least about 30% fabric stretch.
3. The stretchable fabric of claim 1 , wherein the stretchable fabric exhibits at least about 35% fabric stretch.
4. The stretchable fabric of claim 1 , wherein the stretchable fabric exhibits at least about 40% fabric stretch.
5. The stretchable fabric of claim 1 , wherein the stretchable fabric exhibits at least about 45% fabric stretch.
6. The stretchable fabric of claim 1 , wherein the stretchable fabric comprises one of a satin weave, twill weave, a ripstop weave, a basket weave or a basic weave.
7. The stretchable fabric of claim 6 , wherein the inelastic yarn spun from nylon and cotton staple fibers comprises a two plied yarn comprising substantially equal amounts by weight of nylon and cotton.
8. The stretchable fabric of claim 7 , wherein the elastic yarn comprises elastic polymer yarns core spun with nylon and cotton yarn, wherein further the core-spun elastic polymer yarns are incorporated into the stretchable fabric during weaving of the stretchable fabric in the fill direction.
9. The stretchable fabric of claim 8 , wherein the weight of the stretchable fabric is greater than about 6.5 oz./yd. 2 .
10. The stretchable fabric of claim 8 , wherein the breaking strength of the stretchable fabric as measured by ASTM D5034-95 is greater than about 160 lbf. in the warp direction of the stretchable fabric, and greater than about 60 lbf. in the fill direction of the stretchable fabric.
11. The stretchable fabric of claim 8 , wherein the air permeability of the stretchable fabric as measured by ASTM D 737-96 is less than about 25 ft. 3 /min/ft. 2 .
12. The stretchable fabric of claim 8 , wherein the stretchable fabric weight is greater than about 6.5 oz./yd. 2 , the breaking strength of the stretchable fabric as measured by ASTM D5034-95 is greater than about 160 lbf. in the warp direction of the stretchable fabric, and greater than about 60 lbf. in the fill direction of the stretchable fabric and the air permeability of the stretchable fabric as measured by ASTM D 737-96 is less than about 25 ft. 3 /min/ft. 2 .
13. The stretchable fabric of claim 8 , wherein the stretchable fabric shrinkage after laundering and drying is less than about 3.5%.
14. The stretchable fabric of claim 8 , wherein the stretchable fabric weight is about 6.5 oz./yd. 2 to about 7 oz/yd. 2 , the breaking strength of the stretchable fabric as measured by ASTM D5034-95 is about 160 to about 220 lbf. in the warp direction of the stretchable fabric, and about 60 to about 145 lbf. in the fill direction of the stretchable fabric, the air permeability of the stretchable fabric as measured by ASTM D 737-96 is about 11 ft. 3 /min/ft. 2 and the shrinkage after laundering and drying is less than about 3.5%.
15. The stretchable fabric of claim 14 , wherein the elastic yarn comprises polyurea-urethane polymer.
16. A garment comprising the fabric of claim 8 .