Effect of polyester and elastane linear density on the physical and mechanical properties of dual-core-spun cotton yarns

ABSTRACT

The use of single-core elastic spun cotton yarns is well established in textiles and denim industry but interest in the use of dual-core-spun yarns has started to grow only recently. The aim of this study was to investigate the effect of polyester and elastane linear density on the physical and mechanical properties of dual-core-spun cotton yarns. Yarn samples were prepared on industrial-scale spinning machines using cotton as the sheath fibers and two different linear densities of polyester and three different linear densities of elastane filaments in the core. Statistical analysis of the results revealed that yarn tenacity, elongation, uniformity, and hairiness are significantly affected by the linear densities of both the polyester and elastane filaments in the core, with statistically significant interaction between them. Yarn imperfections (IPI), however, are affected mainly by the polyester denier, while the elastane linear density did not show statistically significant effect on the IPI. Regression equations for different yarn properties were also developed which showed fairly high values of coefficient of determination (R-sq).

摘要

单芯弹力棉纱的使用在纺织品和牛仔布工业中已经很好地建立，但对双芯纱的使用的兴趣最近才开始增长。本研究的目的是研究涤纶和弹力线密度对双芯纺棉纱物理力学性能的影响。在工业规模纺丝机上用棉作鞘纤维和两种不同的线性密度聚酯和三种不同密度的弹性纤维长丝在芯中制备纱线样品。结果的统计分析表明，纱线的韧性、伸长率、均匀性和毛羽都受到纤芯中的聚酯纤维和弹性纤维丝的线性密度的显著影响，在它们之间具有统计上显著的相互作用。然而，纱线缺陷（IPI）主要受聚酯旦尼尔的影响，而弹性线密度对IPI没有显著的影响。还开发了不同纱线性质的回归方程，显示出较高的测定系数（R-sq）。

KEYWORDS:

• Core-spun yarn
• dual-core yarn
• cotton yarn
• elastane
• polyester
• yarn properties

关键词:

• 包芯纱
• 双芯纱
• 棉纱
• 弹性纤维
• 涤纶
• 纱线性能