Comparision of End Breakage Rates in a Plain-Weft Knitting Zone due to Splices and Knots

Abstract

The effect of some knitting factors such as the machine gauge, the depth of stitch draw, the input tension, and the take-down weight on the end breakage rates in plain-weft knitting zone due to yarn joints (airsplices, weavers knots and fisherman's knots) is investigated experimentally, using a cotton yarn (30^s/1).
The results obtained are as follows :
(1) The knitting defect due to airsplices is hardly occurred for every knitting condition. Airsplice is a very usefull yarn joint on weft knitting.
(2) The knitting defect due to weavers knots or fisherman's knots almost causes knitting holes by end breakages in a plain-weft knitting zone. The end breakage occurs near the knot on the take-down side.
(3) The end breakage rate in a plain-weft knitting zone due to weavers knots or fisherman's knots increases together with the increase of the machine gauge, the depth of stitch draw, the input tension, and the take-down weight.
(4) For every knitting condition, the end breakage rate in plain-weft knitting zone due to fisherman's knots is more than that due to weavers knots.