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Application fields of food packaging

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the process of using plastic to package food products mainly includes four industrial industries: the first industry refers to the production of plastic resin and film. The second industry is the processing industry of flexible and rigid packaging materials, the third industry is the mechanized production industry of packaging, and the fourth industry is the food processing industry. In the first industry, raw materials such as oil, coal and natural gas are used to synthesize polymerized low molecular compounds, and then polymerize various resins. Thus, it is processed into a single or multi-level composite film for food packaging in food processing plants

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