engleski

Determination of the impact of weft density on fabric dynamic thickness under tensile forces

This paper deals with the impact of fabric density on fabric thickness change if samples are subjected to uniaxial tensile forces in the weft direction. During stretching, fabric thickness changes depending on the value of tensile force. In an effort to be as precise as possible in measuring fabric dynamic thickness changes and the area on which tensile force acts, a new measuring apparatus was designed and constructed. This measuring apparatus allows the simultaneous measurement of fabric dynamic thickness, related tensile axial forces and extension. Measurements of fabric dynamic thickness, breaking force and breaking extension during the stretching process were carried out on five samples of a cotton woven fabric with constant warp density and different weft densities in the same structural plain weave. Based on the experimentally obtained values, the paper presents diagrams of the relationship between dynamic changes in fabric thickness in relation to tensile force and extension. The research presented in this paper shows that an increase in tensile force increases fabric thickness for all weft densities. Also, out-of-plane woven fabric ratio was calculated as a relation between relative thickness strain and relative axial strain. The characteristic curve shows this ratio.

woven fabrics ; dynamic thickness ; warp density ; weft density ; tensile force ; extension ; out-of-plane woven fabric ratio

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