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. Currently, vacuum packaging mainly for food packaging, such as meat, cereals and processed foods easily oxidative deterioration of food, can also be used for mechanical parts, instruments and feather products, hair products and other fluffy product packaging. With the gradual improvement of people's living standards, as well as the continuous improvement of quality of life, vacuum-packed in contemporary people's lives has occupied a pivotal position indispensable, it is a typical field of packaging technology extends longitudinally plays no effect can be substituted. Food vacuum packaging technology overview vacuum packaging, simple to say that the most important role is that of oxygen, in order to help prevent food spoilage. Principle Principle vacuum bags vacuum packaging is very simple. The main reason is the deterioration of food mold rot caused by microbial activity, and microorganisms (such as molds and yeasts) need oxygen to survive, this principle is the use of vacuum packaging, the packaging bag and food cells deprived of oxygen, microorganisms lose "living environment." At the same time, it also prevents the oxidation of food due to leaving the food taste, bad, in order to achieve longer food storage and preservation effect. Food Food vacuum packaging materials and types of food vacuum packaging properties of composite materials, direct impact on changes in food shelf life and taste. During vacuum packaging, packaging materials, a good choice is the key to the success of the packaging. Since the main material comes to food vacuum bag vacuum packaging material, material that is essential for classification, the following are suitable for all vacuum packaging material characteristics: First, where PE for low temperature use, RCPP suitable for high temperature cooking so; two, PA is to increase physical strength, puncture resistance; three, AL foil in order to increase the barrier properties, shading; four, PET, increase the mechanical strength, stiffness of the gifted. Then according to the needs, in combination, a variety of properties, there are transparent, in order to increase the barrier properties of barrier coatings using water-PVA.