The application of textile products in functional area like sportswear has been increasing in last decade. The thermal properties of knitted fabric sample made up of polyester and cotton were studied for football sportswear. Six samples were manufactured, two were plain, two ribs and two are bi-layer interlock structures. Airflow and WVP (Water vapor permeability), thermal properties, and drying capacity of bi-layer knitted samples made up of polyester as the inner surface and cotton as the outer surface. The outcome indicates bi-layer samples with polyester as the inner surface and cotton as the outer surface having single(one) tuck point of replication is preferable for football wear. The thickness, structure and weight of the sample have great influence on the thermal comfort properties of bi-layer knitted fabrics. As thickness of the sample increases the thermal property, air permeability and drying ability decreases and higher absorbency. The results are discussed together with Statistical analysis system (SAS) test results at a 95% significance level.
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