With the continuous improvement of people's living standards, the demand for various convenience foods has also greatly increased, which has further stimulated the rapid development of my country's food packaging industry. The vacuum packaging machine is one of the relatively fast-developing packaging machinery and has a broad prospect for development. There are many types of vacuum packaging machines. Here is an introduction to vacuum packaging machines.

definition

People often put the packaged objects outside the vacuum chamber to complete the vacuum packaging equipment called vacuum packaging machine.

principle

The vacuum packaging machine is put into the packaging bag of the packaged material through the suction nozzle, evacuates the air, exits the suction nozzle, and then completes the sealing.

Features

1. Part of the air (oxygen) in the packaging container is eliminated, which can effectively prevent food from spoiling and spoiling.

2. The use of packaging materials with excellent barrier properties (air tightness) and strict sealing technology and requirements can effectively prevent the exchange of packaging contents, which can avoid food weight loss and taste loss, and prevent secondary pollution.

3. The gas inside the vacuum packaging container has been eliminated, accelerating the heat transfer, which can improve the efficiency of heat sterilization, and also avoid the packaging container from rupturing due to the expansion of gas during heat sterilization.

In the food industry, vacuum packaging is very common. Various cooked products such as chicken legs, ham, sausages, etc.; preserved products such as various pickles, soy products, preserved fruits and other foods that need to be kept fresh are increasingly using vacuum Package. Vacuum-packed food has a long shelf life, which greatly extends the shelf life of the food.