Elastic quality measuring method and knitting machine of knitting yarn

摘要

Quality of the elastic yarn which you use oneself elastic quality measuring method and the knitting machine of the knitting yarn whose it is possible to appraise with the knitting machine, are offered. When the point of knitting yarn 5 is kept with gripper 7, thread sending roller 16 is reversed, thread sending roller can make the thread tension of knitting yarn 5 with 16 and gripper increase 7. Free length of the knitting yarn 5 which under this thread tension T remains in section of the distance of W, normal rotation being able to point to thread sending roller 16, when it designates the resetting quantity of the knitting yarn 5 which it sends out to the occasion where you reset thread tension below the lower limit near 0 as d, becomes W d. Because growth rate with of thread tension T W/(W d) becomes the 100%, oneself can appraise the elastic quality of knitting yarn 5 with weft knitting mahcine 1.