How do you ensure that composite vacuum packaging machine good extraction effect?

Vacuum products before packing must be conducted within the packaging composite film on the air pumping air into vacuum state, and make the product inside the composite bags to vacuum state, it can prolong the valid term of vacuum products. But sometimes the vacuum packaging machine also can produce some failure or other reasons caused by pumping air into vacuum state, so this is a question worthy of our careful consideration. Vacuum packing machine is to vacuum of vacuum packaging composite membrane, so higher requirements about the quality of the vacuum packaging film. Quality qualification must be used according to related regulations and have a certain thickness of vacuum packaging film, before the use of storage and use of packaging process, can not ensure that the vacuum packaging film damage caused by the leakage. In addition, also want to ensure that the vacuum packaging machine for packaging products have full vacuum time, thus ensuring the air fully fit within the composite packaging film, vacuum degree within the guarantee. All this premise is to must ensure to fully seal tightly closed, in order to avoid air leakage phenomenon and the influence of vacuum degree within the vacuum packaging composite film, in the end, the core part of the vacuum packaging machine is vacuum pump, work a long time, easy to enter the vacuum pump, such as dust, stolen goods, it is easy to make composite bags products sticky dust, always for the vacuum pump oil change. Often in oil, can enhance the extraction effect of vacuum packaging machine. Also pay attention to the protection of the internal pressure of vacuum packaging machine airbag, prevent its fracture and does not produce good vacuum effect.