Relatively speaking, stretch fabrics are better than non-stretch fabrics. Why do people prefer stretch fabrics? Because stretch fabrics can be more comfortable because of their ductility, especially for people who are bloated, stretch fabrics can reduce damage to clothes and provide more possibilities as much as possible. The common components of elastic fabrics are spandex and nylon.

    Spandex itself has high elongation at break, low modulus, and high elastic recovery rate; physical properties of high elongation, low elastic modulus, and high elastic recovery rate. It is more resistant to chemical degradation than latex silk and has moderate thermal stability. Its polymer chain is composed of a low-melting, amorphous "soft" segment as the parent and a high-melting, crystalline "hard" chain embedded in it. composed of segments.

    Spandex has good chemical resistance, resistance to most acids and alkalis, chemicals, organic solvents, dry cleaning agents, and bleaching agents, as well as resistance to sunlight and wind, and snow, but it is not resistant to oxides, which is easy to make the fiber yellow and reduce the strength.

    Spandex can be used in garments that need to be stretchable for comfort, but generally has a smaller ratio on garments. Spandex is more suitable for the weaving of this elastic fabric.