The Effect of Construction on Certain Stress-Strain Properties of Uncoated and Coated Fortisan Fabrics

Abstract

The stress-strain properties of 135 systematically varied Fortisan filament fabrics were investigated before and after coating with rubber and after controlled flexing of the coated fabrics. In the uncoated fabrics, the highest tenacity was attained in a wide range of fabrics which were neither too dense nor too sleazy and which had few yarns of relatively high denier rather than many low denier yarns per inch. The structural tenacity (breaking load of the coated fabrics in the warp or filling direction divided by the weight of the uncoated warp or filling) of the coated fabrics followed roughly the same pattern, but was more sensitive to sleaziness. The range of coated fabrics which retained comparatively high structural tenacity after flexing was limited to those woven with the lowest denier yarns with a combination of a high number of yarns per inch and a rather open weave (2/2, 4/2, 5/1, or 4/4 twill ) or a lower number of yarns per inch and a denser weave, such as 2/1 twill or 4 shaft sateen.