[Overview]
Vacuum packaging machines are suitable for vacuum packaging using medium-sized vacuum-inflation packaging equipment. Vacuum packaging involves evacuating the packaging bag to a low-vacuum state and then immediately sealing it automatically. Because a high-vacuum environment is created inside the bag, very little residual air remains, effectively inhibiting the proliferation 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. Vacuum packaging machines are one of the fastest-growing types of packaging machinery and boast a promising future for development.
Application
The single-chamber vacuum packaging machine uses plastic composite films or plastic-aluminum foil composite 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 more. After packaging, this process effectively prevents oxidation, mold growth, spoilage, and moisture absorption, thereby preserving product quality and extending shelf life while maintaining the food’s color, aroma, and taste, and further enhancing the product’s storage duration.
[Function]
Some of the air (oxygen) in the packaging container is removed, effectively preventing food from spoiling.
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 degradation 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 various cooked food products such as chicken legs, ham, and sausages, as well as marinated products—including a wide range of pickled vegetables, soybean products, candied fruits, and other foods that require long-term preservation. After being vacuum-packed, these foods experience a significantly extended shelf life, greatly enhancing their marketable lifespan.
