In order to achieve the goal of low twist and high strength of wool yarns and to improve the quality of fabrics,investigating the effect of low-torque ring spinning process on the performance of wool yarns with different twist factors and fabric weft skew conditions,25 tex wool yarns with different twist factors were spun by low-torque ring spinning process and the tenacity,breaking extension,hairiness index and dryness uniformity of these wool yarns were compared with those of the 25 tex wool yarns spun by conventional ring-spun.The results show that when the wool yarn fineness is 25 tex,at the same twisting coefficient,the breaking strength of the wool yarn of the low-torque ring spinning process is about 10%higher than that of the conventional ring spinning;the breaking extension is about 15%higher than that of the conventional ring spinning;the decreasing trend of long hairiness index(3-9 mm)is obvious,which reduces the pilling of fabrics;the short hair index(1-2 mm)is significantly increased,which makes the fabric feel fuller and softer;the dryness uniformity is significantly reduced compared to that of conventional ring spinning;the weft slope of the knitted samples made from low-torque ring-spun wool yarns is about 15%lower than that of conventional ring-spun yarns,provides new ideas and methods for the development of wool yarns and knitted fabrics.
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