Tactile Comfort and Low-Stress Mechanical Properties of Half-Bleached Knitted Fabrics Made from Cotton Yarns with Different Parameters

ABSTRACT

Consumers purchasing textiles usually feel fabrics for its tactile properties indicating that they are interested in comfort properties rather than other properties. During daily activities, low-stress mechanical action like bending, shear, compression, tensile, and hysteresis occurs on clothing. These high sensitive low-stress mechanical properties have influence on movement comfort of the body. This study reports effect of cotton yarn parameters on tactile comfort and low-stress mechanical properties of four knitted fabrics. These fabrics were developed with cotton yarn having different yarn counts; twist, coefficient of mass variation, neps, hairiness, thin and thick places, and strength and elongation. Half-bleach treatment was carried out on the knitted fabrics and the effect of yarn parameters plus their correlation on tactile comfort and low-stress mechanical properties were evaluated. Results statistically analyzed showed that coefficient of friction, surface roughness, tensile, bending, shear, and compression of knitted fabrics were affected by yarn count. However, in wales direction, tensile resilience (RT%) of knitted fabrics had insignificant change with an F-value of 1.110 and p-value of .248. A correlation was also found between fabric smoothness and yarn count at adj. R² = 83.1%. A relationship between yarn parameters and tactile comfort properties was also modeled using equations.

摘要

购买纺织品的消费者通常觉得织物的触觉特性表明，他们感兴趣的是舒适性能，而不是其他属性. 在日常活动中，衣服上会发生弯曲、剪切、压缩、拉伸和迟滞等低应力机械动作. 这些高灵敏度的低应力机械特性对身体的运动舒适性有影响. 本研究报道了棉纱参数对四种针织面料的触觉舒适性和低应力机械性能的影响. 这些织物是用具有不同纱线的棉纱开发的;扭曲;质量变化系数;内普斯;毛茸茸的;薄而厚的地方;强度和伸长. 对针织面料进行了半漂白处理，评价了纱线参数及其对触觉舒适性和低应力机械性能的相关性. 统计结果表明，针织面料的摩擦系数、表面粗糙度、拉伸、弯曲、剪切和压缩等受纱线计数影响. 然而，在威尔士方向拉伸弹性 （RT %）针织面料变化不明显，F值为1.110，P值为0.248. 在Adj.R2 =83.1%处，还发现织物平滑度和纱线计数之间的相关性. 还利用方程对纱线参数与触觉舒适性之间的关系进行了建模.

KEYWORDS:

• Cotton yarns
• knitted fabrics
• half-bleached fabrics
• tactile comfort
• fabric surface properties
• fabric low-stress mechanical properties

关键词:

• 棉纱
• 针织面料
• 半漂白织物
• 触觉舒适
• 织物表面属性
• 织物低应力机械性能

Acknowledgments

The authors acknowledge the financial support from Postgraduate Research fund, Ethiopian Institute of Textile and Fashion Technology (EiTEX), Bahir Dar University. This research work was supported by Bahir Dar Textile Share Company. They also appreciate Textile Engineering Faculty, Technical University of Czech Republic, for allowing us to use SHIMA SEIKI® flat knitting machine and Alambeta® instruments.