Vacuum bag in addition to inhibit the growth and reproduction of microorganisms, another important function is to prevent the oxidation of food, because oil and grease food contains a large number of unsaturated fatty acids, the role of oxygen and oxidation, so that the food tastes bad, deterioration, in addition, the oxidation of vitamin A and C loss, food coloring in the role of unstable substances by the oxygen, so that the color darkened. Therefore, oxygen removal can effectively prevent food deterioration and maintain its color, aroma, taste and nutritional value.
Vacuum bag is to protect products from environmental pollution and extend the shelf life of food and other packaging, can improve the value and quality of products. Vacuum packaging technology originated in the 1940s. Since 1950, polyester, polyethylene plastic film successfully applied to commodity packaging, vacuum packaging machine has been rapidly developed.
In the field of people’s life and work, a variety of vacuum bag abounds. Lightweight, sealed, fresh, anti-corrosion, rust-proof vacuum packaging throughout the food to drugs, knitted products, from precision product manufacturing to metal processing plants and laboratories and many other fields. The increasingly widespread application of vacuum packaging has driven the development of vacuum packaging machines, and has also put forward higher requirements for them.
Post time: Aug-12-2021