At present, the fabrics of the fabric are mostly natural fibers and artificial fibers. For example, cotton is a natural fiber with good breathability and moisture absorption, but it has poor elasticity and is easy to deform. Artificial fiber, as the name suggests, is a fiber synthesized according to demand, which solves some of the shortcomings of natural fiber. Spandex, a kind of polyester fiber that is chemically synthesized, is also called elastic fiber because of its excellent elasticity. Clothing fabrics are generally mixed with different proportions of spandex to increase elasticity and comfort, and are widely used.