A Study on Fatigue Behavior of Dual Core-Spun Yarns Containing Wool and Elastane Cores

ABSTRACT

The dual-core yarn structures, which make possible using of second core in the center of yarn has been the focus of attention for denim manufacturers in recent times. It is tried to gain different properties such as durability and flexibility to denim fabrics by using dual-core yarns. The aim of this study is to investigate the effects of twist, elastane, and wool draft ratio on the fatigue properties of dual core-spun yarns with two core materials as wool staple yarn and elastane filament. To know fatigue behavior of the yarns forming the fabric after repeated dynamic loads that is important to determine the permanent elongation that will occur in the fabric during its usage. Experimental results show that twist is a more effective parameter on elongation (before and after cyclic loading), tensile strength (before and after cyclic loading), dynamic modulus, and dynamic strain values. When core draft ratio parameters are observed, wool draft ratio is statistically significant on tensile strength after cyclic loading, elongation before cyclic loading, dynamic modulus. and dynamic strain values. Elastane draft ratio is statistically significant on the only dynamic modulus values.

摘要

双芯纱结构使二芯纱在纱线中心的应用成为牛仔布生产企业近年来关注的焦点.采用双芯纱对牛仔布进行了耐久性、柔韧性等性能试验.研究了捻度、弹性系数和羊毛牵伸比对羊毛短纤维和弹性长丝两种芯材双股芯纱疲劳性能的影响.为了确定织物在使用过程中的永久延伸率, 了解织物在反复动载荷作用下的疲劳行为非常重要.实验结果表明, 扭转是伸长率 (循环加载前后), 拉伸强度 (循环加载前后), 动态模量和动态应变值的更有效参数.当观测到芯拔模比参数时, 发现羊毛拔模比对循环加载后的拉伸强度、循环加载前的延伸率、动态模量、动态应变值和弹性拔模比对唯一的动态模量值具有统计显著性.

KEYWORDS:

• Core-spun yarn
• dual core-spun
• wool
• elastane
• denim
• fatigue behavior

关键词:

• 包芯纱
• 双芯纺
• 羊毛
• 牛仔布
• 疲劳行为

Additional information

Funding

This work was supported by the Erciyes University under Grant [FDK-2016-6700].