Suitable for multi-color ink printing, providing good ink adhesion and color registration accuracy, and ensuring good printing pattern aesthetics; It can also be used for composite bag making, as well as local UV, inkjet printing and other processes. 1.Good thickness uniformity and high surface flatness. 2.Good transparency and high surface gloss. 3.High corona treatment strength, good printing ink adhesion. 4.Preferred surface function additives, suitable for exquisite printing patterns, accurate multi-color overprinting.