Film plays an indispensable role in improving the product quality and added value of textiles. It can not only endow textiles with various special functions and styles, such as softness, wrinkle resistance, shrinkproof, waterproof, antibacterial, anti-static, flame retardant, etc., but also improve the dyeing and finishing process, saving energy and reducing processing costs. Textile auxiliaries – film is very important to improve the overall level of the textile industry and its role in the textile industry chain.