Functional fabrics usually refer to textiles with special functions beyond the thermal insulation, covering and beautification functions of conventional textile products, such as common antistatic, washable and wearable (non ironing), shrinkable, mothproof, waterproof, antifouling, anti wrinkle, anti pilling, flame retardant, anti ultraviolet, far infrared, electromagnetic shielding, deodorization and deodorization, anti radiation, high moisture absorption, etc, Some of these textiles with special functions only have a single function, but also have multi-functional or composite functional fabrics.