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　　Fatty acids in oil can form hydroperoxides during automatic oxidation. Very unstable. Even at low temperatures, it will break and undergo disproportionation reactions during the storage process of anti-static vacuum packaging bags. Forming different carbon based compounds, hydroxyl compounds, and short chain fatty acids. Some of these components may undergo further oxidation reactions, such as aldehydes being further oxidized into corresponding acids. Besides aldehydes and acids, alcohols, ketones, vinegar, vinegar, aromatic and aliphatic compound are also found as decomposition products of fat oxidation. These decomposition products have obvious unpleasant odors, and even at extremely low levels, lipids can produce unpleasant odors, thereby reducing the value of factory food.

　　If the heat sealing strength of frozen food packaging bags is insufficient or if they are not sealed properly, slight impact can cause cracking at the sealing point; If the heat sealing temperature is too high, it is easy to cause damage to the heat sealing layer, weakening the material strength at the sealing line. Once subjected to strong vibration or impact, it is easy to cause bag breakage and large area of rotten bags, which cannot effectively protect the food inside.

　　Bagging is developing towards specialized functionalization. High barrier composite materials will continue to increase market capacity, and packaging bag manufacturers will have the advantages of simple processing, strong resistance to oxygen and water vapor, and improved shelf life. High barrier films will be the mainstream of soft packaging for supermarket food in the future. After a period of degradation of plastic bags, the chemical and mechanical properties of landfill waste undergo significant changes in a short period of time. They are biodegradable and completely harmless fragments, such as the environmental capacity of the soil, reducing waste, controlling environmental pollution, and ultimately returning to the natural environment

　　The planning of packaging bag printing pictures by packaging bag manufacturers should choose fewer and monochrome elements, and try to avoid printing pictures with a solid base and full plate. When choosing printing ink for food packaging bags, do not use surface printing ink with a strong odor. Do not use high boiling solvents containing impurities, such as tar benzene, mixed benzene, or recycled solvents. Do not use single component PS composite adhesive with high odor when laminating food packaging bags. When laminating food packaging bags, the inner layer of the film should be checked for odor. Do not use PE film with fillers as the composite inner layer substrate.

　　The chemical oxidation of anti-static vacuum packaging bags refers to the contact between the vacuum packaging bags and oxygen or other substances released in the air. In people's lives, with the continuous development of the packaging industry. The use of vacuum packaging bags is becoming increasingly common. When using vacuum packaging bags, attention should be paid to the chemical oxidation of the vacuum packaging bags.

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