Comfort behaviour of woven bamboo-cotton ring and MJS']JS yarn fabrics

The thermal comfort characteristics of light weight bamboo-cotton blended apparel fabrics have been studied in relation to fibre composition, yarn linear density and spinning mode. The experimental results show that a denser fabric has higher thermal insulation, higher absorbency and yields higher air and water vapour permeabilities. The fabrics made from the MJS yarns display considerably higher air and water vapour permeabilities, higher thermal resistance and lower wickability as compared to their ring-spun counterparts. With increasing second jet pressure, the air and water vapour permeabilities improve initially but deteriorate thereafter as the second jet pressure is further raised beyond a particular level. Analysis of the fibre-mix reveals that the 70:30 bamboo-cotton fabrics are relatively less air and water vapour permeable, less thermal resistant and exhibit higher wickability than their 48:52 bamboo-cotton couples.