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What are the basic properties of textile fabrics 2022.03.25

The basic properties of the fabric mainly include the breaking strength of the fabric (including the tensile breaking strength, tear strength and capping strength of the fabric, etc.) and wear resistance.

Tensile breaking strength reflects the firmness of the fabric when stretched by external force. Indicators include breaking strength, elongation at break, work at break, specific work at break, etc. The breaking strength represents the load per unit cross-sectional area when the fabric breaks. Elongation at break represents the percent elongation of the fabric at tensile break. The change of load and elongation of the fabric during the entire stress process is drawn into a coordinate curve, which can be used to calculate the work of rupture of the fabric. The elongation at break curve is related to the shrinkage of the warp and weft yarns in the fabric. The greater the shrinkage, the greater the elongation at the beginning of stretching. The work of breaking is the work done by the external force when the fabric is stretched to break. The greater the work of breaking, the stronger the fabric. The tear strength of a fabric is roughly proportional to the spun yarn tenacity. For fabrics with loose tissue, the number of spinning yarns under stress increases, and the tear strength of the fabric increases.

The abrasion resistance of a fabric is the resistance to abrasion that a fabric has. The so-called abrasion means that the fabric is gradually damaged by repeated friction against it by another object during use. There are many types of wear, mainly: ① Flat grinding: The fabric is subjected to reciprocating or rotating plane friction, such as the wear state of the sleeves of clothing, the buttocks of trousers, the bottom of socks, etc.; ② Hemming grinding: The edge of the fabric is folded in half The wear and tear, such as the wear state of the collar, cuffs, trousers and other folds of the garment; ③Curved: It is the repeated friction of the fabric under the bending state, such as the wear state of the elbow of the garment sleeve and the knee of the trousers; in addition , There are also dynamic mills worn by a variety of factors, turning mills during cleaning, etc. The abrasion resistance of the fabric can often reflect the fastness of the fabric.