An investigation on the effect of static and dynamic loading on the physical characteristics of handmade Persian carpets: Part I – the effect of static loading

Abstract

This paper reports the physical and mechanical properties of hand-woven carpets that have been put under static force. Two types of wool fibres, from two parts of Iran, were prepared to spin pile yarns for the carpets. Each group of fibres included both conventional and tanned wool. Next, two yarn counts, Nm = 4/2 and 6/2, were spun for two different knot densities. After weaving, the carpets were put under static force and their thickness variations were measured and plotted against time in the logarithm scale. The resiliency of the carpets' piles, after eliminating the static force, was measured and plotted against time, also in the logarithm scale. The results were compared and analysed with respect to parameters such as the type and quality of the wool fibres, as well as knot density of the carpets.