the crack is not sealed, and the sealing temperature is not adjusted properly
Shanghai GongLiang Packaging Machinery Co., Ltd
the packing bag is not good
the heating time is too short
1. The temperature is low and can be adjusted to increase the temperature. 2. The temperature is high and can be adjusted to reduce the temperature. 3. The material of vacuum packaging bag is not good, so composite bag can be selected. 4. The thermal seal of vacuum packaging machine is uneven.
the specific part of the bag. If it is the place where the bag is made or a part of the bag, it should be the quality problem of the bag. If it’s your own sealing place, it’s a matter of sealing temperature and time