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.
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3.
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4.
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5.
Weinsdörfer, H., and Wimalaweera , W., Methods of Measurement, Testing and Evaluation in the Estimation of Warp Thread Stresses in Weaving , Melliand Textilber68, 327-332 (1987).
6.
Weinsdörfer, H., and Lange, A., Dynamic Stresses on Warp Yarns as Affected by Increased Rates of Output of Weaving Machinery, Textil Prax. Int.44, 118-127 (1989).
7.
Weinsdörfer, H., and Wimalaweera , W., Investigation on Abrasion and Roughening of Warp Yams During Weaving, Textil Prax. Int. 42, 611-617 (1987).
8.
Weinsdörfer, H., and Wimalaweera , W., Methods of Measurement, Testing and Evaluation in the Estimation of Warp Thread Stresses in Weaving , Melliand Textilber. 68, 327-332 (1987).
9.
Weinsdörfer, H., Wolfrum, J., and Stark, U., The Distribution of the Warp End Tension Over the Warp Width and How It Is Influenced by the Weaving Machine Setting , Melliand Textilber . 72, 903-907 (1991).
10.
Weissenberger, W., and Frick, E., Process-effective Quality Assurance in the Textile Production Chain from the Point of View of the Fabric to Yarn Relationship , Textil Prax. Int. 49, 241-248 (1994).
11.
Worthington, A.P., Studies of Shedding Traps and Associated Warp BreaksJ. Textile Inst.64, 503-508 (1973).
