The difference between heat shrink packaging and vacuum packaging

The difference between heat shrink packaging and vacuum packaging bags is mainly reflected in the application scope of the product. Heat shrink packaging is mainly used for products that require moisture-proof coating. Vacuum packaging is mainly used for foods that require "inhibition of bacterial growth, avoidance of oxidation, mold growth, and spoilage".

In principle, heat shrink packaging is achieved by heating the shrink film to tightly adhere it to the product. It not only provides moisture resistance but also makes the product more aesthetically pleasing. Vacuum packaging is composed of a vacuum system, an inflation sealing system, a hot pressing sealing system, an electrical control system, etc. A vacuum packaging machine is a device that automatically seals the packaging bag after it has been evacuated to a low vacuum. Due to the high vacuum level inside the bag, there is less residual air, which can reduce the packaging volume and facilitate transportation and storage.

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