BOPE is the abbreviation of Biaxially Oriented Polyethylene, which is made from special linear low density polyethylene by vertical stretching and horizontal stretching in sequence. Compared with PE films produced by blow molding or tape casting, BOPE films have better improvement on physical performance, whose advantages are high transparency, good heat sealability and moisture resistance, good strength of extension for vertical and horizontal directions, damp proof and foldability.