Tension Measurements in Weaving of Singles Worsted Wool Yarns

Abstract

The variation of tension in weaving 25 tex singles worsted wool yarns is investigated using a commercial on-line tension measuring device. The maximum rate of tension change in warp yarns is 35 to 45 N/s (at beat-up) and in weft yarns 60 to 1000 N/s (depending on the system of weft insertion). Weft yarn failure rates are predicted from measured weft tensions and Uster Tensojet results. Clinging of warp yarns is shown to increase the average tension by up to 20% for a plain weave.