Printing pure aluminum foil bag Main products: aluminum foil bag, vacuum bag, shielding bags, aluminum bags, board vacuum bags, cooking food vacuum bag, nylon vacuum bag, anti-static bags and other packaging materials, metal. The main role of the vacuum bag is oxygen, in order to help prevent food spoilage, the principle is relatively simple, mainly because of deterioration of food mold rot caused by microbial activity, but most microorganisms (such as yeast and mold) is needed oxygen for survival while this principle is the use of vacuum packaging, the packaging bag and food cells deprived of oxygen, so that the micro-material objects lose the "survival of the environment." Another important function is to prevent the oxidation of food, a lot of unsaturated fatty acids, the role of oxidation by oxygen because foods contain fats and oils, make food taste, bad, in addition, also allows the oxidation of vitamin A and C losses, food coloring instability Oxygen subject matter, the color darker. Therefore, the oxygen can effectively prevent food spoilage, keep its color, smell, taste and nutritional value. The main role of the vacuum inflatable packaging vacuum packaging in addition to possess oxygen durability features, there is also the role of compression, gas barrier, preservation, etc., can make food more effectively long-term to maintain the original color, smell, taste, shape and nutritional value. Advisory way: 13862288812 / QQ: 136288258 http://www.ksqspack.com/