抄録
Tension withdrawn from a shuttle is affected by the number of winds per traverse, by the hardness of the yarn layers, by the length and location of the pirn, by the eyelet of the shuttle, by the velocity of withdrawal from the shuttle and by the side walls of the shuttle. In this study the effect of the side walls, apart from the effect of ballooning, is looked into.
Tension of ballooning theoretically increases in proportion to the square of the velocity of withdrawal, but an experimental value shows a smaller value than a theoretical value. This indicates that the effect of friction between the side wall and weft yarn is greater than the effect of the velocity of withdrawal.
