Plastic packaging means the use of plastic packaging. Plastic is synthetic or natural polymer resin as the main material. After adding various auxiliaries, it has ductility under a certain temperature and pressure, and can fix its shape after cooling.

Natural or synthetic polymer resin molecules in a molten state, and the process of uniform distribution of auxiliary molecules around is called plasticization, has reached this process is called plasticization, has not yet reached, is considered not yet plasticized. Plastic packaging is one of the four major materials in the packaging industry: paper and cardboard accounted for 30%, plastic accounted for 25%, metal accounted for 25%, glass accounted for 15%.