# US 7,836,918 B1 · Process for imparting high stretch, recovery and modulus into a woven fabric

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- Number: US 7,836,918 B1
- Document ID: US7836918B1
- Status: Granted
- Kind: B1
- Application number: 12/591,373
- Filed: 2009-11-18
- Granted: 2010-11-23
- Earliest claimed: 2009-11-18
- Assignees: Paradox, Inc.
- Inventors: Eva Osborne
- Web page: https://patentgrep.com/patent/US7836918B1

## CPC

- D03D 15/56: elastic
- D03D: WOVEN FABRICS; METHODS OF WEAVING; LOOMS

## Abstract

A process for imparting a variety of ranges in modulus, stretch and recovery characteristics into an elastomeric fill yarn and a rigid warp yarn stretch woven fabric. The high stretch/recovery properties, in the fill direction, is achieved by using a plurality of successive fabric forming operations, resulting in incremental stretch capacity from each successive operation. The fabric exhibits high stretch/recovery properties in the fill direction and rigid or extremely low stretch properties in the warp direction.

## Claims

### Claim 1

A process for manufacturing a weft stretch woven fabric comprising the steps of:
a. providing rigid warp yarn to a weaving loom
b. providing fill yarn tensions discs to a weaving loom
c. providing fill elastomeric core spun fill yarn to a weaving loom
d. controlling the amount of stretch on the elastomeric fill yarn at the tension discs while pulling the fill yarn through the shed during weaving, and
e. spacing the warp ends such that partial contraction between the interlacings in the fill direction occurs between the reed and the cut roll during weaving, and
f. exposing the partially oriented fabric to steam, and
g. washing said fabric with tension free wash equipment, and
h. drying said fabric with tension free equipment, and
i. subjecting the fully jammed fabric to a tensionless heat and pressure operation, whereby the resulting stretch capacity of the fabric in the fill direction meets or exceeds 90%, the modulus is within the range of 1 to 4, the recovery meets or exceeds the 90%, the growth is less than 10%.