MULTIFUNCTIONAL BOPP CIGARETTE PACKAGING FILM AND MANUFACTURING METHOD THEREOF

摘要

A multifunctional BOPP cigarette packaging film comprises an upper layer (1), a middle upper layer (2), a middle layer (3), a middle lower layer (4) and a lower layer (5). The upper layer (1) is a binary copolymerized polypropylene surface layer; both the middle upper layer (2) and middle lower layer (4) are homopolymerized polypropylene antibacterial layers, the middle layer (3) is a homopolymerized polypropylene reinforcement layer; the lower layer (5) is a binary copolymerized polypropylene bottom layer. Also disclosed is a manufacturing method for the multifunctional BOPP cigarette packaging film. The packaging film acts as an effective barrier, has smoothness and relatively low moisture permeability as well as low cost, and is suitable for a high-speed packing machine.