Aluminum foil has good barrier properties and can effectively block the influence of external factors such as light, oxygen, and moisture on the contents of the package. Aluminum foil bags are very commonly used and popular in food packaging. They have the following advantages:
(1) Good heat insulation, airtight and watertight. Many ordinary packaging bags melt easily when exposed to hot things, and are also easily invaded by bacteria. Aluminum foil bags are sealed with a sealing machine to effectively prevent the items in the bag from getting damp and from being invaded by bacteria. They have a stable shape and are not easily affected by environmental factors.
(2) The shielding method is used for partial aluminum plating. Any pattern can be made according to the needs of customers, and a transparent window can also be selected. Customers can see the items in the bag through the sealing machine, and the metallic luster it has can be reflected in the sun, making the printed color more exquisite and giving people a higher appreciation value.
(3) It has the property of preserving the aroma of food, which can better preserve the aroma of food, increase the taste of food, and is non-toxic, giving people a sense of safety. The performance of aluminum foil bags is reflected in many aspects. It is usually used as a food packaging bag and has good environmental performance .