For food, packaging not only acts as a container, but also preserves quality and extends the shelf life. In the past, glass packaging, metal packaging, paper packaging and plastic packaging were widely used in food industry packaging materials.
Because glass packaging and metal packaging are relatively expensive and too bulky compared to plastic packaging and paper packaging, except for special foods, most foods are packaged in paper or plastic. However, in the days to come, food packaging materials may be more and more limited to paper packaging.
With the improvement of social and economic level and the deepening of civilization, the state and government are paying more and more attention to environmental protection issues. In recent years, my country has repeatedly issued environmental protection policies and local governments have successively promulgated laws and regulations, which greatly deepens the impression of environmental protection awareness in people's minds, and people's requirements for environmental protection naturally rise.
According to the survey, the amount of plastic used in food packaging accounts for 1/4 of the total plastic production. In major shopping malls and supermarkets, plastic-packaged food abounds. The plastic packaging used for puffed food and the plastic covering of instant noodles not only caused waste of resources due to excessive packaging, but also formed a lot of white garbage.
The amount of waste generated by plastic packaging is incalculable and difficult to decompose. Buried in the soil, it is difficult to rot, causing great harm to land resources and water resources. Even if it is burned by fire, the gas generated will still pollute the air and damage people's health.
Therefore, at least in high-end food, plastic packaging will be used less and less in the future, and paper packaging will be the replacement. Compared with glass packaging and metal packaging, paper packaging has lower cost, easier production, lighter weight and easier processing.
At the same time, compared with plastic packaging, paper packaging is easy to degrade and can be recycled, with little impact on the environment. This has occupied a great advantage under the gradual improvement of people's awareness of environmental protection and the rise of the concept of zero-degree packaging, simple packaging and green packaging led by the packaging revolution in the global industry and economic system.