Effects of the twist factor of singles and folded cotton yarns on the spirality of single-jersey fabrics [Influenta coeficientului de torsiune a fireflor de bumbac simple şi rasucite asupra spiralitatii tricoturilor glat]

The spirality of single-jersey cotton fabrics knitted from plied yarns at the same tightness factor is discussed. An experiment is carried out to investigate the effect of yarn twist factor (singles and plied yarns) on fabric spirality. The spirality angles increase with an increase in the twist factor of the singles yarns in the plied yarns. However, as the twist factor of the plied yarns increases in the S direction, there is a sharp decrease in fabric spirality. Using these results it is possible to predict the level of spirality before knitting starts. Ring-spun yarns are used and the fabrics are produced on a Stoll hand knitting machine.