Polyester is a synthetic fiber commonly used to make clothing, household items, and industrial materials. Polyester fiber has good wear resistance, corrosion resistance and heat resistance, and also has a certain degree of elasticity.
The elasticity of polyester fiber mainly depends on its molecular structure and processing method. Generally speaking, the molecular chains of polyester fibers are very long, which makes them somewhat elastic. In addition, polyester fibers can be chemically or physically treated to increase their elasticity.
For example, during the production process of polyester fiber, some elastic agents can be added to improve its elasticity. These elastic agents allow polyester fibers to become softer, stretch more easily, and return to their original shape.
In addition, polyester fiber can also be woven to increase its elasticity. For example, when making stretch fabrics, polyester fibers are mixed with other fibers and then woven or woven to create a stretchy fabric.
In short, although polyester fibers are not very elastic like elastic fibers, they still have a certain degree of elasticity, especially after special treatment back.
