BREAKING PROPERTIES OF DIFFERENT COTTON FABRICS AS AN IMPORTANT PREREQUISITE FOR THEIR PRACTICAL USE

Abstract

In this paper, the ability of fabrics of different weaves and approximate fineness and density of threads to resist external forces of stress and deformation was investigated. An analysis of the influence of fabric construction on load behavior, i.e. on the behavior in use where the fabrics will be exposed to different types of stresses, is given. Two fabrics in plain and satin weaves were used. It was found that the structure and construction of fabrics directly affect the behavior during external stretching. The fabric in the plain weave has higher values for breaking strength and breaking elongation compared to the fabric patterns in satin weave. The pattern in the atlas weave has higher values for breaking elongation, which is related to the structure of the intertwining of the warp and weft and the residual stresses in the fibers, i.e. yarn. The fabric in the plain weave has higher values for the modulus of elasticity in both directions compared to the fabric in satin weave, which means that the initial deformation of the fabric in the plain weave requires a higher applied force compared to the fabric in satin weave. According to the results of work of rupture, the fabric in satin weave showed higher resistance to deformations compared to the fabric in plain weave. By modeling the force-elongation curve, using the second-order polynomial model, a very good coverage-fitting of the experimental data for both fabrics in the warp and weft direction is determined. Based on the model equations, the behavior of the same or similar fabrics in terms of mechanical characteristics can be predicted with sufficient reliability without practical measurement of breaking force and breaking elongation.

Keywords

• cotton
• plain weave
• satin weave
• mechanical properties
• work of rupture
• modulus of elestycity