In this case, we should first distinguish where the problems are and find out the problems one by one with the elimination method. Packaging roll film manufacturers introduced that when packaging food, vacuum after cooking sterilization, found that the bag inflated and leaked air, then take this package into the water and squeeze it to see where the air leakage. Usually, most of the customers fill the food by themselves, and the sealing is not firm due to the oil in the food. In addition, the high-temperature sterilization will produce the above-mentioned air leakage and package expansion, which will cause odor after a long time.
These are common problems with two-layer cooking. Now we will analyze the cooking problem of the next three layers of aluminum foil. Packaging film manufacturers introduced delamination is usually between the mask and aluminum foil, the analysis of this problem, glue believe you will not use the wrong, should be cooking glue, can replace two glue test, all this is not the glue problem, we should consider the material: fabric and aluminum foil. Whether the surface of aluminum foil has been treated clean, whether the fabric used can be high temperature, whether the dyne value has been reached, the problems need to be solved one by one. Its air leakage is the same as that of the two-layer structure. If the sealing is not good, the bag will expand and leak. After a long time, it will give off a peculiar smell. Because of the air leakage, some additives and food in the food will cause the oxidation of the bag with oxygen. When the manufacturers of packaging roll film introduce peculiar smell, they should pay attention to the selection of fabrics. Although both pet and nylon can be used as fabrics, pet is a polar material, which absorbs oil. Here we can do a small experiment. We can use pet aluminum foil to compound high-temperature CPP, and nylon aluminum foil to compound high-temperature CPP. Put the same food into vacuum, sterilize and clean, and then put it in the air. You will find that pet feels sticky to the touch, while nylon can't. this is the difference. Because pet absorbs oil, so for a long time, we will find that pet has a little odor, while nylon will not. www.ycritai.cn/
Dongguan Beite packaging materials Co., Ltd
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, box bags, packaging roll film, perforated fruit bags, Dongguan bate packing material Co., Ltd.