Influence of the single wool yarn twist on the weft incline of knitted fabric
In order to improve the weft skew degree of knitted fabrics,the weft skew degree of knitted fabrics under different twist conditions was analyzed with single wool yarn twist as the research object.By observing the variation law of weft skew,adjusting twist value and twisting mode of strand,the balance twist of strand was determined and the weft skew of knitted fabric was reduced.Keeping the single yarn Z-direction 630 twists/m unchanged and the strand twist S direction 380 twists/m as the reference twist,the single wool yarn plying after 60 days of relaxation was added to the reference twist to analyze the balance state of the strand under the action of twist.The results show that when the single twist is Z to 630 twists/m,the balance twist of strand is S to 125 twists/m,and the weft skew degree of knitted fabric is the smallest,and the weft skew angle is 0.48°.The balance twist of strand is affected by direct twisting and indirect twisting.The internal stress of indirect twisting is 4.46 times that of direct twisting.The balance twist of strand should be obtained by indirect twisting,and indirect twisting is not affected by the value of twist.