Indian Journal of Fibre & Textile Research
Vol. 31, March 2006, pp. 177-186


Thermo-physiological comfort characteristics and blended yarn woven fabrics


V K Kothari

Clothing protects from cold or heat to maintain body thermal comfort throughout the full range of human activities. Various types of tactile, moisture and thermal interactions between the clothing material and the human skin determine the comfort level of a person at a given environmental condition while engaged in a specific level of activity. The fabric type and its blend composition, the tactile and thermal insulation behaviour of the fabric assembly and the moisture management capabilities of the clothing can affect the comfort. This paper discusses the role of fibre properties on comfort characteristics of fabrics and why the blending of fibres at yarn manufacturing stage can lead to fabrics having the desired characteristics from comfort point of view. The details about the properties of different fibres and their relationship to different comfort attributes have also been provided. The results of experimental study of water vapour permeability conduct of polyester/viscose (P/V) and polyester/cotton (P/C) blended yarn fabrics show that the higher polyester content in P/V and P/C fabrics is detrimental to water vapour transmission. The water vapour transmission rate also increases with the air flow rate above the fabric.

Keywords: Blended yarn, Comfort, Thermal insulation behaviour, Water vapour permeability, Woven fabric

IPC Code: Int. Cl.8 D03D15/00