Analysis of food vacuum bag

　　In today's economic market, a variety of packaging bags are becoming more and more popular. Among them, vacuum bags are the most widely used.

　　As long as it is within the scope of vision in life, the most common food packaging bags are. Go to a supermarket and you will find those colorful packaging bags in the shopping bags are very dazzling. Maybe you are not engaged in the work of packaging products. You will not pay attention to the study of the materials of these ubiquitous packaging bags every day. Now, Foshan Qiji Packaging Co., Ltd. will popularize the knowledge for everyone.

　　In fact, general vacuum bags are divided into:

　　1. The ordinary vacuum bag is made of PET and PE (polyethylene).

　　2. Nylon vacuum bag is made of NY and PE.

　　3. The cooking vacuum bag is made of CPP (cooking) and PET.

　　In fact, several nylon vacuum bags are of good quality and high toughness, but their prices are slightly higher than those of ordinary vacuum bags. Of course, every kind of bag has its inevitable market value.

　　Now the use of vacuum bags has penetrated into various industries. No matter in supermarkets or markets, there are many kinds of food packaged with vacuum bags. What functions can vacuum bags have in food packaging.

　　First, since it is called vacuum packaging bag, the air inside must be removed. It is obvious that oxygen does not exist. We all know that food deterioration is mainly caused by microbial activities. Without oxygen, microorganisms will lack a living environment, and food can be naturally preserved for a long time.

　　Second, vacuum can also prevent the oxidation of food, such as some lipids, to prevent their rancidity, and vitamins, which are easy to change color. With vacuum packaging bags, the color, smell and taste of food can be effectively maintained.

　　Third, the vacuum bag has a high barrier, which has the effect of preventing water and oxygen. It blocks these things internally. In addition, it has dual protection, stable performance, and can withstand low temperature refrigeration and oil invasion.

　　Fourth, some vacuum bags also have the function of moisture-proof. Of course, there are also some high temperature resistant ones. With the traditional sterilization method, the food can be better preserved.

　　When purchasing vacuum bags, you must go to a regular manufacturer. Don't try to be cheap and make yourself lose!

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