Aluminum foil packaging bags are different from ordinary plastic bags. They can prevent oxygen from entering the food bag, are waterproof and moisture-proof, and can maintain the taste of food for a long time. Therefore, many nuts, soft cans, dried fruits, cooked foods and other foods tend to use aluminum foil packaging bags.
The surface of the composite aluminum foil packaging bag is relatively flat and smooth, the printed pattern is brightly colored, and the bag is exquisite. It has a good publicity effect and improves the product quality. Aluminum foil packaging bags can be made into vacuum bags, zipper bags, self-supporting bags, eight-side sealing bags and other bag types. Various designs can meet the needs of various products.
What is the reason for the expansion of aluminum foil packaging bags? How to deal with it?
“Aluminum foil packaging bags have good water and oxygen barrier functions. They are often used in cooked foods, meats, pickles, snacks and other foods to prevent oxidative deterioration and keep them fresh. Once the aluminum foil packaging bags appear “bag swells, the food loses its protective function.” , Leading to food spoilage. So, what is the reason for the expansion of aluminum foil packaging bags? How to solve? ”
1. The aluminum foil packaging bag itself has quality problems.
①Poor airtightness of aluminum foil packaging bags causes air leakage. The expansion of the bag due to this reason requires the packaging manufacturer to control the strength of the heat seal during the production process.
②The aluminum foil packaging bag is wrinkled during storage and use, causing the bag to break, and the small hole will cause the aluminum foil bag to leak. Therefore, care should be taken to avoid folding during transportation, storage and use.
2. Food spoils. During the production process, the food is not sterilized before being bagged. Long-term storage will cause bacteria to multiply and produce gas, causing the aluminum foil bag to expand.