Factors Affecting Defects in 1×1 Rib Knitted Fabrics due to Weaver's Knots of Spun Yarns

The effect of some factors on defects in 1×1 rib knitted fabrics due to weaver's knots is investigated experimentally, using a combed cotton yarn and a worsted yarn. The knitting defects due to the knots are caused by end breakages in the 1×1 rib knitting zone which almost lead to holes in knitted fabrics. This end breakage occurs near the knot on the take-down side. When the depth of stitch draw, the input tension, the take-down weight and the step length of cam are increased or when the cam angle is decreased, the end breakage rate in the 1×1 rib knitting zone increases.