The function and principle of vacuum composite bag packaging

Although vacuum packaging bags are widely used in society nowadays, some people still don't understand the working principle and main functions of vacuum packaging bags.

The so-called vacuum means that there is no oxygen. Then one of the main functions of vacuum packaging bags is to remove oxygen to achieve the purpose of food preservation and deterioration. This is also one of the main reasons why most food packaging uses vacuum packaging bags. Before vacuum packaging bags were invented, people could not keep food for a long time. After vacuum packaging bags were invented, people could store food for longer periods of time. Some foods could even be stored for several years using special vacuum packaging bags. Time, it can be seen that the vacuum packaging bag has an extremely powerful effect on fresh-keeping storage. Since the main function of vacuum packaging bags is to remove oxygen to achieve the goal of preventing food from spoiling, the working principle of vacuum packaging bags is also well understood.

As we all know, under normal circumstances, most food spoilage and mold rot are caused by the activities of many microorganisms, but the activities of these microorganisms are the same as our humans, and they also require a lot of oxygen for their activities. In other words, the living environment of these microorganisms in food needs a lot of oxygen. In this case, if the oxygen on which the microorganisms live is removed, the effect of long-term storage and preservation of food can be achieved for a long time. Using this working principle, people can use Vacuum packaging bags to achieve the purpose of preventing food spoilage, taste and mildew.