Modified fiber, also known as functional fiber, refers to a series of new functional fibers derived from the improvement of certain properties of conventional chemical fiber varieties (such as moisture absorption, dyeing, anti-static, flame retardant, etc.) by chemical or physical methods. This is similar to the usual rubber modification, plastic modification, etc.

The main objective of the modification of synthetic fibers is to endow them with the properties of natural fibers or meet the needs of special properties, such as high strength, high modulus, high elasticity, heat resistance and various special functions. To put it simply, add skill points to fibers.