INFLUENCE OF WARP TENSION ON BREAKING STRENGTH AND STRAIN OF WOVEN FABRICS

This paper assesses the influence of warp tension on the breaking strength and strain of plain woven fabrics. Different fabric constructions were woven by changing weft yarn count, weft density and warp tension. Twisted polyester warp yarn and textured polyes-ter weft yarns are used in weaving fabrics. Warp tension was changed up to four different values for each fabric and their breaking strength and strain were measured. Experimental results showed that as the warp tension increased the fabric’s breaking strength in warp direction decreased with thinner weft yarns, slightly increased with thicker weft yarns. There was no significant effect of warp tension on the fabric’s breaking strength in weft direction. As warp tension increased the fabric’s breaking strain in warp direction decreased in the fabrics with higher warp crimp. As the warp tension increased the fabric’s breaking strain in weft direction increased with thinner weft yarns, slightly decreased or remained almost constant with thicker weft yarns.