| 摘要 |
<p>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 the middle-lower layer (4) are homopolymerized polypropylene antibacterial agent layers, the middle layer (3) is a homopolymerized polypropylene stiffening agent layer, the lower layer (5) is a binary copolymerized polypropylene bottom surface layer. Also disclosed is a manufacturing method for the multifunctional BOPP cigarette packaging film. The packaging film acts as an effective barrier, has slip property and relatively low moisture permeability as well as low cost, and is suitable for a high-speed packing machine.</p> |
