The effect of loop length and yarn linear density on the thermal properties of bamboo knitted fabric

In this work, the thermal comfort properties of bamboo knitted fabrics have been studied in relation to loop length and yarn linear density. The objective was to determine the influence of fabric factors such as loop length and the constituent yarn linear density on the fabric properties such as air permeability, thermal conductivity, thermal resistance and relative water vapour permeability. Yarns with linear densities of 20s Ne, 25s Ne, 30s Ne with the same twist levels were used to construct the fabrics of single jersey structure with loop lengths of 2.7 mm, 2.7 mm and 3.1 mm. The anticipated increase in air permeability and relative water-vapour permeability with a decrease in yarn linear density and increase in loop length was observed. In general, the thermal conductivity and thermal resistance tended to increase with the constituent yarn linear density but decreased with an increase in loop length.