Effect of air plasma treatment on thermal comfort properties of cotton/polyester knitted fabrics

The effect of plasma treatment has been studied on thermal comfort properties of cotton and polyester fibres blended inthe ratios of 0:100, 50:50 and 100:0 using four types of fabric structures, single jersey, cross tuck, cross miss and twill at twodifferent loop lengths 0.29 cm and 0.32 cm. The findings reveal that the knitted fabrics made from 100% polyester showbetter thermal resistance characteristics. On the other hand, the fabric made with 100% cotton gives better air permeabilityand water vapour permeability behavior. The fabric knitted from 100% polyester with a cross-miss structure on a looplength of 0.32 shows an excellent thermal comfort characteristic as compared to all the other samples due to its appreciablebehaviors suitable for thermal conduction. The plasma treatment has a great impact on the thermal properties, in such a waythat it reduces the air permeability and water vapour permeability but increases the thermal resistance.