In this competitive era, many technologies have been emerging for the designing and development of sports apparel. Comfort is an important aspect in sports apparel because it affects the performance of the wearer due to discomfort. The thermal comfort characteristics of bi-layer knitted fabrics with tuck stitch on the 12th wale and 18th course with varying yarn compositions in the inner layer have been studied. Micro-fibre polyester or polyester or acrylic yarn was used as the inner layer and modal yarn was used as the outer layer. Based on the objective evaluation of air, heat and moisture transfer and shuttle badminton players rating by the wear trial method, it is inferred that the bi-layer knitted fabric with micro-fibre polyester in the inner layer and modal in the outer layer exhibited good thermal comfort characteristics when compared to polyester or acrylic yarn in the inner layer. All the bi-layer knitted fabrics have shown significant difference at 95% confidence level by using ANOVA analysis and Freidman one-way analysis of variance.
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Suganthi et al. (2017) studied this question.