BOPP stands for “Biaxially Oriented Polypropylene”. The BOPP film is a two-sided film made of polypropylene that has been “biaxially oriented” meaning that the film has been stretched in two different directions. The film is a multilayer film typically associated with three-layer structures: one thick layer of polypropylene sandwiched between two thin layers of polypropylene. BOPP films have become more popular in the world market because of its extraordinary properties as a flexible packaging material. BOPP film is colourless, odorless, non-toxic and has high tensile strength, impact strength, stiffness, toughness and good transparency. Common BOPP films include the following: General biaxially oriented polypropylene film, heat seal biaxially oriented polypropylene film, cigarette packaging film, biaxially oriented polypropylene pearl film, biaxially oriented polypropylene metallized film, matt film, etc.