What Are The Advantages And Disadvantages Of Aluminum Foil Bags

Aluminum foil bags are increasingly used in food packaging, and aluminum foil bags are bags containing aluminum foil in composite materials. Aluminum foil bags are widely used and are related to the material characteristics of aluminum foil itself.
1. The advantage of aluminum foil in aluminum foil bags is that it blocks oxygen and moisture very well, with a permeability of 1 for both water and oxygen, making it a good barrier material. In addition, the aluminum foil in the aluminum foil bag has good heat resistance, light reflection and gloss, good shape at high and low temperatures, suitable for high-temperature cooking, and can withstand up to 125 degrees Celsius.
2. However, as the material itself, aluminum foil in aluminum foil bags also has its own limitations. Firstly, the disadvantage of aluminum foil is its brittleness and susceptibility to breakage. It's difficult to reconcile. Secondly, the disadvantage of aluminum foil is its poor acid resistance, so when packaging fruit juice or acidic items, it is generally not placed on the inner sealing layer to ensure that it will not be penetrated by acid and leave the layer. Furthermore, it has no heat sealing properties and cannot be used as the inner layer of composite bags. Based on the above material characteristics, aluminum foil in aluminum foil bags can only be used as the middle layer material of the bag.