Study of bending properties of fabrics

The fabric samples have been prepared with 3 types of weaves as plain, twill and satin with 3 types of weft yarns and 3 levels of picks per inch. The tensile characteristics and bending properties have been measured. The tensile strength of fabrics for all cases is higher for warp direction compared with weft. The weft way tensile strength and breaking elongation increases with increase in pick density with few exceptions. The breaking elongation for plain weave fabrics is high for warp way as compared to weft. While the fabric with twill weave and satin weave shows the opposite trend. The bending rigidity is low for plain weave fabric followed by the twill and satin weave. The bending recovery is high for satin weave fabric followed by twill and plain weave. The coercive couple which is related to the energy loss is high for plain weave fabric followed by twill and satin weave. As far as the effect of pick density is concerned no specific trend is observed for these parameters.