ANALYSIS OF BREAKING CHARACTERISTICS OF COTTON FABRICS OF THE MOST FREQUENT WEAVES

Abstract

The behavior of three raw cotton fabrics of different basic weaves and approximate yarn settings and yarn counts, when subjected to tensile deformation, is described in this article. The values of the breaking force in the fabric in the linen weave have the highest mean numerical value, while the cotton fabric in the atlas weave has the lowest values. The fabric in the twill weave has the highest values for elongation at break, while the lowest values are present in the fabric in the atlas weave. The fabric in linen weave is the most resistant to external deformations, while the fabric in twill and atlas weaves are the weakest. The standard deviation and coefficient of variation for fabrics in all weaves have values that move within a range that confirms the validity of the results. In some cases, larger variations of these statistical data mean that these results can be taken with a certain amount of caution. It seems that there are a lot of latent stresses in the fabric, which are relaxed during the action of the tearing force, causing greater variations in the measurement results. Deformation curves after nonlinear fitting of the breaking force-elongation at break dependence are described by polynomial equations of the fourth and fifth degree, with the fact that about 99% of the variability of the dependent variable can be explained by means of the analyzed independent variables. Polynomial models are practically usable because they can predict with high reliability the deformation behavior of fabrics with similar weaves in the direction of the warp. There are statistically significant correlations between numerous values for breaking force from the experiment and the polynomial model.

Keywords

• cotton fabric
• weave
• breaking properties
• correlation
• polynomial regression