Fully automatic bottle blowing machine is a kind of packaging technology in which the goods are packed into an airtight container and vacuumed before the container is sealed, so that there is basically no air in the sealed container. Automatic bottle blowing machine technology originated in the 1940 s. In 1950, polyester polyethylene plastic film was successfully used in plastic blow molding machines, and plastic blow molding machines have developed rapidly since then.

In fact, a vacuum should be understood as a space where the gas is thinner. In a given space, the state of a gas below one atmospheric pressure is collectively referred to as a vacuum. The degree of gas rarefaction under vacuum is called vacuum (degreeofvacuum), which is usually expressed by pressure value. Therefore, the plastic bottle blowing machine is actually not completely vacuum, and the vacuum in the food container packaged by the plastic bottle blowing machine technology is usually 600-1333Pa. Therefore, the plastic bottle blowing machine is called decompression packaging or exhaust packaging.

The characteristics of the full-automatic plastic bottle blowing machine are as follows:

Part of the air (oxygen) in the packaging container is excluded, which can effectively prevent food spoilage.

2, the use of barrier (air tightness) excellent packaging materials and strict sealing technology and requirements, can effectively prevent the exchange of packaging materials, can avoid food weight loss, loss of taste, but also to prevent secondary pollution.

3. The gas inside the container of the automatic bottle blowing machine has been eliminated, which accelerates the conduction of heat, which can improve the efficiency of thermal sterilization, and also avoids the expansion of the gas during heating and sterilization.

In the food industry, the application of automatic bottle blowing machine is very common, all kinds of cooked products such as chicken legs, ham, sausage, etc. Pickled products such as various pickles and bean products, preserved fruits and other kinds of food that need to be preserved are increasingly using plastic bottle blowing machine. After the plastic blow molding machine food shelf life is long, greatly extending the shelf life of food.