The difference between the unilateral heating vacuum packing machine and double heating

Is the survival of enterprises of food packaging equipment, has now spread to many precision processing enterprises, the use of packaging machine for metal artifacts, plays a supplementary role of moistureproof and dustproof. Vacuum packaging machine can automatic extraction of air inside the bag, achieving complete after vacuum sealing process. Vacuum packaging technology originated in the 1940 s. In 1950, polyester, polyethylene plastic film successfully used in vacuum packaging, since then, vacuum packaging and got rapid development. Vacuum packing machine is often used in food industry, because after vacuum packaging, food antioxidant, to achieve the purpose of long-term preservation. Suitable for frozen meat cutting, cold fresh meat, soy products such as meat, seafood, snack food, pharmaceutical products, medical equipment, electronic components, hardware tools industry products such as vacuum or gas packaging, the packaging has become a trend in food packaging in the future. It is also easy to check and count.

many customers are buying vacuum packing machine do not know how to choose the suitable model from a large number of models. Our sales staff will be according to customer's products recommend the size and characteristics of the vacuum packing machine model. Whether you need double heating is a very important problem, should be how to judge?

after heating is to make the bag sealed vacuum in time, make the products keep the vacuum state, choose the single side or double side depends on the thickness of the bag and shape. Many customers bag is M shape, namely take folding bag. When merging two ends, the bag in the middle is double and four layers. If you use a single heating vacuum packaging machine, then there will be a double part adhesive, but four part layer is too thick and not easy to attach, when a double heating vacuum packaging machine used for sealing. Also must have the customer said, they can extend one side of the heating time. We also have done the experiment, if we simply extend the heating time, can appear the phenomenon of double local ironing.

so single heating vacuum packaging machine can't four layer flange sealing bag, double-side heating must be used. There are many tip about vacuum packing issued items are in the website of the vacuum packaging machine, interested customers can look up to the site, or call the site for advice.

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