Influence of idling number on fabric properties of air layer stitch

In order to study the influence of idling number on fabric properties,six kinds of samples with Milano rib were knitted with different idling numbers by the same yarn,and the areal density,thickness,warmth retention and air permeability of the samples were tested. Analysis revealed that idling number was highly negative correlated with the areal density and air permeability that decreased with increasing of idling number. The idling number had not apparent linear correlation with thickness and warmth retention that first increased and then decreased as the idling number increased.