Patent ID: 9187851
Filing Date: 2015-11-17
Classification: A61F,D04B,D04H,D10B,Y10T

Abstract:
1. A method of forming a stitch-bonded creped fabric, comprising the steps of: delivering a stitching substrate of fibrous nonwoven fleece to a stitching position in a stitch-bonding apparatus, the stitching substrate having a mass per unit area of not more than about 30 grams per square meter; and stitching a plurality of yarns in a pattern of substantially parallel spaced-apart linear stitch lines extending in the machine direction across the stitching substrate to form the stitch-bonded fabric, wherein the stitching substrate is delivered to the stitching position at a rate in excess of the rate of take-up from the stitching position such that the stitching substrate bunches and is consolidated during stitching, the stitching substrate being delivered to the stitching position with at least 25% overfeed relative to the rate of discharge such that delivery of one meter of stitching substrate in the machine direction yields no more than about 0.75 meters of stitch-bonded fabric in the machine direction, wherein the stitching substrate forms an arrangement of texture-imparting ridges running predominantly in the cross-machine direction of the stitch-bonded fabric and wherein the stitch-bonded fabric is characterized by stretch before failure in the machine direction of less than 20%.