Today in Baidu Business Bridge, I saw a customer asking me what the material of the vacuum packaging bag is? In fact, it is difficult to explain in one or two sentences to answer this question, but in order to solve this problem, it is the first time that you encounter such a question from a customer? I’m still going to write a solution to this question. First of all, we can ask a question about this problem: what material bag is suitable for vacuum packaging?In fact, the key is to see whether the bag of this material is suitable for the product you want to pack. To put it bluntly, it is a choice of material to determine according to your own product:We all know that the main function of vacuum inflatable packaging is not only the deoxygenation and quality preservation function of vacuum packaging, but also the functions of anti-pressure, gas blocking, and fresh-keeping, which can more effectively keep the original color, aroma and taste of food for a long time. , shape and nutritional value. In addition, there are many foods that are not suitable for vacuum packaging and must be vacuum inflated. Such as crunchy and fragile food, food that is easy to agglomerate, food that is easy to deform and lose oil, food with sharp edges and corners or high hardness that will pierce the packaging bag, etc. After the food is vacuum-packed, the inflation pressure inside the bag is stronger than the atmospheric pressure outside the bag, which can effectively prevent the food from being crushed and deformed under pressure without affecting the appearance and printing and decoration of the bag. Then the traditional plastic bags have long been unable to meet people’s needs for product packaging, and vacuum bags are the best choice and more advanced. So what are the specific materials of vacuum packaging bags? Let’s take a look at it in detail:The best four choices for the material of vacuum packaging bags 1,PETHigh temperature resistant polyester film with good mechanical properties and good printing effect. 2,Al: Aluminum foil film has good barrier properties and can block light, suitable for products that need to prevent light; 3,PE: Polyethylene, a polymer made from ethylene. Polyethylene is a typical thermoplastic, odorless, tasteless and nontoxic white powder, suitable for use in low temperature environment; 4,RCPP: Polypropylene cast high temperature retort resistant film has good high temperature resistance, is not easy to deform at high temperature, and has excellent puncture resistance and impact resistance. Commonly used for cooking food and medicine packaging, often combined with nylon film or polyester film to package soup or meat products.
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