Features of vacuum technology - vacuum packaging machine
Vacuum, the term translated from Latin vacuo, its meaning is nothing. In fact, the vacuum should be understood as a more rarefied gas of space. In the designated space, less than an atmospheric pressure of the gas state referred to as vacuum. Rarefied gas under vacuum as the vacuum level (degreeofvacuum), usually pressure indicated. Therefore, vacuum packaging is not really complete vacuum, using vacuum packaging technology for food packaging vacuum within the container is usually 600-1333Pa. So, in turn called the vacuum packaging or vacuum packaging exhaust packaging.
Vacuum-packed the following features:
1, excluding part of the packaging container of air (oxygen), can effectively prevent deterioration of food ****.
2, the use of barrier (airtight) packaging materials and strict quality sealing technology and requirements, can effectively prevent the exchange of substances packaged content, you can avoid food weight loss, loss of taste, but also to prevent secondary pollution.
3, vacuum-packed inside the container has been ruled out of gas, accelerating the conduction of heat, which can improve the efficiency of heat sterilization, but also to avoid the heat sterilization, leaving the expansion of the gas containers rupture.
In the food industry, vacuum packaging applications are very common, a variety of cooked products such as chicken, ham, sausage, etc.; all kinds of pickles and pickled products such as soy products, dried fruit and other kinds need more and more fresh food vacuum packaging . After vacuum packaging of food preservation and long, greatly extending the shelf life of food.
Vacuum packaging of articles into the airtight container after the vacuum in the container before sealing, to seal the container after a little air packaging technology. Vacuum packaging technology originated in the 20th century, 40 years. In 1950, polyester, polyethylene plastic film used for vacuum packing successfully, then, vacuum packaging has been developed rapidly.
Our vacuum packaging technology in the last century, developed in the early 80s, and the vacuum inflatable packaging technology in the last century a small amount of use since the early 90s, with little promotion and packaging of supermarket development, its scope more and more widely Some will gradually replace the rigid packaging, the prospects are very good.
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