[Chinese Packaging Network News] vacuum packaging is the main role of oxygen, to help prevent food deterioration, the principle is relatively simple, due to the deterioration of food products mainly caused by the activities of microorganisms, and most microorganisms (such as mold and yeast Survival requires oxygen, and vacuum packaging is the use of this principle to remove the oxygen inside the packaging bag and food cells, so that the microorganisms lose their living environment.

In addition to inhibiting the growth and reproduction of microorganisms, another important function of vacuum deoxygenation is to prevent oxidation of foods. Oils and fats contain large amounts of unsaturated fatty acids, which are oxidized by the action of oxygen and cause foods to taste deteriorating. There must also be pressure-resisting, gas-blocking, and freshness-preserving functions that can more effectively maintain the original color, aroma, taste, shape, and nutritional value of the food.

In the case of packaging, packing solids, granules and other relatively dry and non-corrosive materials, can use aluminum alloy material, and packaging with soup, materials containing salt, acid composition, can use stainless steel or aluminum magnesium alloy material . The seal ring is generally made of silicone rubber and black rubber. A few low-grade products use foam rubber. The silicone rubber has high temperature resistance, corrosion resistance, good sealing properties, and long service life. The foam rubber has poor sealing properties, is easy to fall off, and has a short service life.

Tea vacuum packaging machine belongs to vacuum packaging machine. However, in the actual application, there is still a very big difference in its application. Vacuum packaging machine adopts advanced microcomputer controller to drive stepper motor control bag length and trademark positioning, stable performance, easy adjustment and accurate detection. Moreover, the package has a unique triangular appearance, beautiful and stylish, and enhances the display effect. However, the general vacuum packaging machine does not have such an effect.

In the process of using the vacuum sealer, vacuuming, inflating and fitting are performed on various foods, meat products, seafood, fruits and vegetables, pickles, cooling meats, pharmaceutical products, hardware components, and medical devices. However, in essence, there are still very large differences between the above two devices.

Vacuum sealer is mainly to isolate all contact between the product and the outside world. The vacuum packaging machine and tea vacuum packaging machine are mainly used in the actual application of microorganisms to prevent food oxidation.

In addition, different products and different functions exist. This is a well-known event. Therefore, in the process of purchasing these devices, we must pay more attention to this issue!