We often find that the quality of food in storage, taste and other issues, and some even a spoiled, there are many reasons for this, the more common reasons is packaged food containers sealing material barrier performance is not enough, and it is poor. Food manufacturers in the custom food packaging must take into account before the characteristics of the food itself, the choice of specific materials, taking into account the properties of each material, the thickness, to obtain a sufficient barrier properties.
One has a good barrier food packaging bags made of materials but also does not work without a good seal, sealing is required bag can effectively prevent foreign substances (such as water vapor, microorganisms, dust, odor) to enter and food packaging bag taste lost out. Many food should be in well sealed containers for storage, otherwise easily cause food qualitative change. Like tea is a kind of dry goods, are susceptible to damp moldy effect of water vapor in the air, while other odors in the air suction force is very strong, but the taste itself highly volatile, so the tea made on the packaging container sealing barrier strong requirements.
How detection of food packaging bags seal it? If it is just a bag filled with liquid water, to see which places have water leak on the line, but like solids or other food it is difficult to detect by this means tightness, where you can seal tester to detect food bags tightness.
