Food packaging materials refer to paper, bamboo, wood, metal, enamel, ceramics, plastics, rubber, natural fibers, chemical fibers, glass and other products used in packaging, food or food additives, and coatings that directly contact food or food additives. As food packaging materials are in direct contact with food, Article 33 of the Food Safety Law states: “(VII) Foods that are directly imported should use non-toxic, clean packaging materials, tableware, drinkware, and containers.†Therefore, Ensure that the packaging material itself is safe, non-toxic and free of volatile substances. At the same time, during the implementation of the packaging process, there will be no chemical substances and chemical components that react with food ingredients. This article will introduce you to the classification of packaging materials.
The advantages of packaging materials are embodied in the saving of materials, non-pollution of wastes, recyclability, and no secondary pollution. Therefore, the selection of environmentally friendly packaging materials should comply with the basic principles of pollution-free, non-polluting and recyclable. Although the natural environmental protection packaging materials are pollution-free, they have high commercial costs and are also a waste of the earth's capital. The composite environmental protection materials will become the mainstream trend of environmentally-friendly packaging materials because of their low cost, non-polluting, and easy-to-recycle characteristics. .
The packaging material needs to have high-efficiency bacterial inhibition to ensure that the aseptic machinery is not contaminated by external bacteria for a long time. At the same time, the packaging material is also required to be permeable to the bactericidal factors and does not affect the sterilizing factor to the bacterial microorganisms. Kill function.
Packaging materials are one of the necessary conditions for electronic products to complete their functions. They not only affect the overall function of product packaging, but also relate to the quality problems of electronic products during transportation and storage. In addition to ensuring that electronic products are free from external damage, the selection of packaging materials should also be oriented toward conservation and environmental protection.
Due to the complexity of the composition of the packaging materials, the substances in the food packaging material are precipitated and appear in the food, possibly due to the migration of these substances to the food or due to accidental extraction. This has caused the chemical migration of food packaging to also have a negative impact on food.
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