Factors Affecting Air Permeability of Viscose & Excel Single Jersey Fabric

This paper compares the porosity / compactness of the knitted structures made from viscose and excel yarns and evaluates the air permeability property for sportswear. In the experimental section, viscose and excel yarns spun in different counts ( Ne 30, Ne 40 ) with the same twist coefficient of αe = 3.3 were knitted as single jersey fabrics in the same production conditions with four tightness factors and air permeabililty property of fabrics were measured. The result showed that air permeability is a function of the thickness, tightness factor and porosity of the knitted fabrics and excel single jersey fabrics are considered preferred candidates for warmer climate sportswear, due to their higher air permeability.