Tensile properties of reinforced multi-axial warp knitted fabrics

Electronic fabric strength tester was used to test the tensile properties of multi-axial warp knitted fabric in the directions of 0°,90°,±45°separately in order to provide reference for textile enterprises to optimize the structural parameters of fabric and enhance the tensile properties of fabrics in practical production.The effects of fabric surface density,yarn surface density of each lining layer,number of layers,stacking sequence,linear density of yarn,machine gauge,reed density and loop length and other structural parameters on the tensile properties of the fabric were investigated.The results showed that the fabric surface density is the main factor influencing the breaking strength.Increasing the surface density of yarn layers of different directions increases the breaking strength.If the surface density of yarn layer is fixed,the more the layers stacked,the less the breaking strength with each layer.The greater the machine gauge and the shorter the loop length,the tighter the fabric and the greater the breaking strength.