Factors Affecting the Knitting Defects due to Knots in the Plain-Weft Knitting

Abstract

The effects of some factors on the knitting defects due to knots in the plain-weft knitting were studied experimentally.
The results obtained were as follows
(1) The knitting defects due to knots were almost knitting holes which were caused by end breakages in the plain-weft knitting zone. The end breakage occured at the point of take-down side at a short distance from the knot.
(2) As each of knitting factors such as the depth of stitch draw, the input yarn tension, the takedown weight, the machine gauge, the coefficient of friction between yarn and needle and the machine speed were increased, the end breakage rate incresed. But the increase of the cam angle decreased the end breakage rate.