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Influence of twist on dimensional stability

机译：扭曲对尺寸稳定性的影响

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In this research, 36s count cotton yarn with S and Z twist is produced and 7 types of plain woven fabrics were produced by changing the arrangement of warp and weft combination of S and Z twist yarns in the fabric to study the effect of twist direction and relaxation on dimensional stability. This study shows that the 'Z' warp and 'S' weft yarn combination gives lower shrinkage percentage than other combinations.rnDimensionally unstable fabrics lead to poor quality and market loss. Hygral expansion and relaxation shrinkage are referred to as the dimensional property of woven fabrics. Although each of these phenomena has an important influence on the dimension of woven fabrics, their modes of action are quite different and there is no obvious connection between the two. The mechanism of shrinkage of cotton fabrics when washed has been explained in [1]. When yarns are woven in the fabric they are subjected to considerable tensions, particularly in the warp direction. In subsequent finishing process stretch is increased and temporarily set in the fabric causing the fabric unstable, and subsequently, when the fabric is thoroughly wet, it tends to revert to its stable dimension.
机译：在这项研究中，通过改变S和Z捻线在织物中的经纬组合，研究了36根S和Z捻的棉纱，并生产了7种平纹织物，研究了捻向和捻度的影响。尺寸稳定性的松弛。这项研究表明，“ Z”型经纱和“ S”型纬纱组合的收缩率比其他组合低。尺寸不稳定的织物会导致质量差和市场损失。水分膨胀和松弛收缩被称为机织织物的尺寸特性。尽管每种现象都对机织织物的尺寸有重要影响，但是它们的作用方式却大不相同，两者之间没有明显的联系。 [1]中已经解释了棉织物在洗涤时的收缩机理。当纱线编织在织物中时，它们会承受相当大的张力，特别是在经纱方向。在随后的整理过程中，增加了拉伸力并暂时将其固定在织物中，导致织物不稳定，随后，当织物被完全润湿时，它趋于恢复其稳定尺寸。

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