The effect of increased twist upon yarn density is explored and a law of critical diameter is postulated. It is suggested that at the time at which a yarn breaks under tensile load the density of the yarn is equal to the fiber density.
The influence of twist on contraction is examined and prediction formulas are given for cotton, woolen, worsted, and rayon yarns.
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References
1.
Besset, M.C. , Influence de la torsión sur la longueur d'un filés, L'Industrie Textile, Apr., 1948, No. 737.
2.
López-Amo, T.E.Federico, Consideraciones analiticas sobre la torsión y consecuencias inmediatas que se observan, Ingenieria Textil, Jan.-Mar., 1945, Nos. 51-2.
