At present, vacuum-packed products have been widely used in people's lives. Vacuum packed products have many advantages, such as shelf life preservation, anti-corrosion and rust prevention, small space occupation, and easy carrying. Vacuum packaging is widely used and has gone deep into all walks of life and is welcomed by everyone.
In the market, there are many small, practical and easy-to-use household vacuum packaging machines. Their appearance meets the needs of people's daily life: for example, preservation of food, preservation of bedding and so on. In particular, for the preservation of cotton fabrics, vacuum is greatly saved, which is very popular with users. Only such products have not yet been particularly valued by all businesses, but they should be a good development direction.
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 generally uses silicone rubber and black rubber. A few low-grade products adopt foam rubber. The silicon rubber has high temperature resistance, corrosion resistance, good sealing performance, and long service life. The foam rubber has poor sealing performance, is easy to fall off, and has a short service life.
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