Packaging roll film manufacturing methods are divided into four categories: lamination method, dip coating method, plasma vapor deposition method, and interfacial polymerization method. Packaging roll films are used in separation processes such as reverse osmosis, gas separation, and pervaporation. Using two different roll film materials, a membrane composed of a surface active layer with a separation function and a porous layer with a supporting function are respectively made. For many years specializing in the production of various packaging roll films, food composite roll films, aluminum foil roll film manufacturers, we can customize various sizes according to customer product needs, because we focus on the production of packaging roll film, so it is more professional, if you need to order packaging roll film contact us.