BOPP film is a transparent flexible packaging material. This film not only has the low density, but also has good performant at corrosion resistance, heat resistance. BOPP film has good optical properties, high mechanical strength,excellent printing performance,the source of raw materials is rich. Can be combined with paper, PET and other based materials, with high definition and gloss, excellent ink absorption and coating adhesion, high tensile strength, excellent grease barrier properties, low static characteristics. It is widely used in the field of printing and composite, and it is used as packaging material in tobacco and other aspects.