What are the requirements of the vacuum packaging machine for packaging materials?
Vacuum packaging bags are an equally important link when we choose a vacuum packaging machine. In order to ensure the effect of vacuum packaging, we must not only choose a vacuum packaging machine with excellent quality, but also choose good packaging materials and packaging bags according to the actual packaging products. The quality is directly related to the quality of the final vacuum packaging sealing. Let's take a look today.
Material of the packaging bag:
Vacuum packaging bag: On the surface, the vacuum packaging bag is no different from ordinary plastic bags, but it is actually a composite material, which has no pores. If it is only pure PE material, air leakage will occur after a long time. High temperature cooking bag: This type of packaging bag is of better quality than the first one, so its cost and price are high. The vacuum-packaged food in this bag can accept high-temperature cooking of no higher than 106 degrees, does not layer, does not leak the package, has high heat sealing strength, and has good puncture resistance. It is suitable for packaging of various cooked foods. Aluminum foil bag: The aluminum foil bag is the kind of silver-white bag. It has unique physical properties such as moisture-proof, light-proof, high and low temperature resistance, oil resistance, fragrance retention, non-toxic and tasteless, puncture resistance and tear resistance, etc., during the packaging and circulation process It prevents damage to the package and guarantees the tightness of the package. This type of packaging bag is not only suitable for food, but is also widely used for packaging electronic components, hardware and other items. In addition, the composite vacuum packaging film with the same inner layer material, if the thickness is too high, the initial heat sealing temperature will be high, and vice versa. In other words, the composite film with uniform thickness can obtain uniform sealing quality and avoid poor heat sealing. Therefore, when preparing a customized packaging bag, you must customize the thickness of the packaging bag according to the time requirements for packaging the product yourself, to achieve the best packaging effect.