Analysis of fabric structure on fabric abrasion resistance
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Fabric structure generally refers to the geometric structure of the fabric, which is the spatial relationship between the warp and weft yarns in the fabric. Fabric structure has a great influence on the physical properties of the fabric and affects the appearance of the fabric. Several categories of fabrics, such as woven fabrics, knitted fabrics, and non-woven fabrics, each have different structural characteristics. Crossover and knotting are two stable structural relationships that yarns can form. Keep the fabric in stable shape and specific mechanical properties. The yarns in the fabric have their own running directions and rules, forming different organizational structures.
Fabric Structure is one of the main factors affecting the wear resistance of fabrics, so the wear resistance of fabrics can be improved by changing the structure of the fabric.
1. Fabric weave
The influence of fabric structure on abrasion resistance varies with the warp and weft density of the fabric. Among fabrics with lower warp and weft density, plain weave fabrics have more interweaving points and the fibers are not easily extracted, which is beneficial to the wear resistance of the fabric. Among fabrics with higher warp and weft density, satin fabric has better wear resistance. The twill weave is second, and the plain weave is worse. Because when the warp and weft density is high, the fibers are quite firmly attached to the fabric. The main way of fiber damage is that the fibers generate stress concentration and are cut and broken. At this time, if the floating thread of the fabric is long, the fibers can move appropriately in the yarn, which is beneficial to the wear resistance of the fabric. When the warp and weft density of the fabric is moderate, the wear resistance of the twill fabric is better.
Knitted fabric The wear resistance is also closely related to the organization. The basic rules are the same as for woven fabrics. The wear resistance of weft-flat tissue is better than other tissues. Because it has a smooth surface and a large supporting surface, the fibers are not easy to break and pull out.
2. Fabric thickness
Fabric thickness has a significant impact on the flat abrasion resistance of the fabric. The thicker the fabric, the better the flat abrasion resistance, but the lower bending abrasion and edge abrasion resistance.
3 .The fineness of warp and weft yarns in the fabric
When the fabric structure is the same, the yarn in the fabric is thicker, and the supporting surface of the fabric is large. When the fabric is rubbed, stress concentration is less likely to occur; and when the yarn is thick, the number of fibers included in the yarn cross section is large, and the yarn The threads are not easy to break, which is beneficial to the wear resistance of the fabric.
Fabric support The large supporting surface of the fabric indicates that the actual contact area between the fabric and the abrasive is large, and the local stress on the contact surface is small, which is beneficial to the wear resistance of the fabric.
4. Fabric apparent density
The density and thickness of the fabric are directly related to the apparent density. Tests have shown that when the apparent density of the fabric reaches 0. 6g/cm3, the resistance to hemming and abrasion becomes significantly worse.
5. Fabric square meter weight
The square meter weight of the fabric is extremely significant for the flat abrasion resistance of all types of fabrics. Abrasion resistance increases almost linearly with square meter weight. However, the degree of influence is different for different fabrics. For fabrics with the same weight per unit area, the abrasion resistance of woven fabrics is better than that of knitted fabrics.
Affects various Another important factor in the structure of a fabric is the shape and structure of fiber raw materials and yarns. Due to the ever-changing structure of fabrics, the shape and form of fabrics also change. Modern textile processing methods are developing day by day, raw materials are constantly changing, and new products emerge in endlessly. Various fiber composites are used, including fiber blends, blends, blends, blends and combinations of different types of fabrics. Various adhesives, compounds and coatings are also added to make the structure of textiles more complex and the finished products more colorful.
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