The present study is aimed at accessing the impact of elastane core liveliness on physical and mechanical properties of elastane-cotton core-spun yarn fabric. The yarn liveliness is altered by changing draw ratio on ring frame and thus the elastane core % in the yarn. The 4 samples of 30s Ne elastane core-spun cotton yarn have been produced using 40 den elastane having 5, 7, 9 and 11% elastane core adjusted by using suitable draw ratio on ring frame. These elastane core-spun cotton yarns are used in weft direction to produce fabric sample. These fabric samples are tested for various physical and mechanical properties as per ASTM standards. The findings reveal that the yarn core liveliness has significant effect on various physical and mechanical properties of fabric.

中文翻译：

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氨纶棉包芯纱活度对机织改性莱诺织物性能的影响

本研究旨在探讨氨纶芯线活度对氨纶-棉芯纺纱织物的物理和机械性能的影响。改变环架上的拉伸比可以改变纱线的活度，因此可以改变纱线中的弹性纤维芯％。使用具有5％，7％，9％和11％弹性纤维芯的40旦氨纶，通过在环架上使用合适的拉伸比进行调节，生产了4个30s Ne弹性纤维包芯棉纱样品。这些弹力氨纶包芯棉纱用于纬向生产织物样品。这些织物样品按照ASTM标准进行了各种物理和机械性能测试。研究结果表明，纱线芯的活度对织物的各种物理和机械性能具有重要影响。