What is the true meaning of the vacuum packaging machine?
Vacuum, the term is translated from the Latin vacuo, its meaning is nothing. In fact, vacuum should be understood as a space where gas is thin. In a given space, the state of the gas below one atmospheric pressure is collectively referred to as vacuum. The degree of gas thinness in a vacuum state is called a degree of vacuum, and is usually expressed by a pressure value. Therefore, the vacuum packaging is not actually completely vacuum, and the vacuum in the food container packaged by the vacuum packaging technique is usually 600-1333 Pa. Therefore, the vacuum packaging is also referred to as a vacuum packaging or an exhaust packaging.
Vacuum packaging technology originated in the 1940s. In 1950, polyester and polyethylene plastic films were successfully used for vacuum packaging, and vacuum packaging was rapidly developed. China's vacuum packaging technology was developed in the early 1980s, and vacuum inflatable packaging technology began to be used in small quantities in the early 1990s. With the promotion of small packaging and the development of supermarkets, its scope of application is more and more extensive. Some will gradually replace hard packaging, and the prospects are very promising.
Oxygen in the air is a natural enemy of all the quality of the goods, no matter how solid the protective layer can be broken. The emergence of food vacuum packaging machine is to save the development of cooked food, fully isolate the contact between food and oxygen, so as to avoid quality damage, and maintain good quality for a long time. The food vacuum packaging machine is specially designed for packaging cooked food. It can be packaged according to some properties of cooked food. In addition to these technological breakthroughs, the food vacuum packaging machine has also undergone some new adjustments on the packaging, making the product packaging easier to carry, and looks more refined and beautiful, not only increasing the market attention of cooked food products, but also Speed up the development of cooked food and promote the steady development of the market economy.