[Overview]
Vacuum packaging machines are suitable for vacuum packaging using medium-sized vacuum-inflation packaging equipment. In vacuum packaging, the packaging bag is first evacuated to a low-vacuum state and then immediately sealed automatically. Because a high-vacuum environment is created inside the bag, very little residual air remains, effectively inhibiting the growth of bacteria and other microorganisms. Single-chamber vacuum packaging machines are particularly well-suited for vacuum packaging of meat products, seasonings, soybean products, pharmaceuticals, as well as various powdered, solid, and liquid foods, thereby extending product shelf life and preventing mold, spoilage, and moisture absorption.
As people’s living standards continue to improve, the demand for various convenient foods has also risen sharply, further driving the rapid development of China’s food packaging industry. As one of the fastest-growing categories within packaging machinery, vacuum packaging machines boast a promising future for development.
Application
The single-chamber vacuum packaging machine uses composite plastic films or composite plastic-aluminum foil films as packaging materials, enabling vacuum packaging of solid, liquid, powdered, and paste-like foods, fruits, pickled vegetables, candied fruits, chemical products, electronic components, precision instruments, rare metals, and other similar items. After packaging, this process effectively prevents oxidation, mold growth, spoilage, and moisture absorption, thereby preserving product quality, extending shelf life, and ensuring that the food retains its original color, aroma, and flavor—thus further enhancing the storage duration of the products.
[Function]
Some of the air (oxygen) in the packaging container is removed, thereby effectively preventing food spoilage.
2. By using packaging materials with excellent barrier (airtight) properties and strictly adhering to sealing techniques and relevant requirements, we can effectively prevent gas exchange between packaging materials, thereby avoiding loss of food weight and deterioration of flavor, while also eliminating the risk of secondary contamination.
3. The gas inside the vacuum-packed container has been removed, which helps accelerate heat transfer, thereby improving the efficiency of thermal sterilization and avoiding the issue of gas expansion during heating and sterilization.
In the food industry, vacuum packaging is widely used for a variety of cooked food products such as chicken legs, ham, and sausages, as well as marinated products like various pickles, soybean products, candied fruits, and other foods that require preservation. Increasingly, these foods are being packaged under vacuum. After vacuum packaging, the shelf life of food products is significantly extended, greatly enhancing their shelf life and freshness.
