As a common packaging material, aluminum foil bags have excellent barrier properties and sealing properties, and are widely used in the packaging of food, medicine, cosmetics and other products. However, sometimes we encounter a situation where the foil pouch does not seal, why is that? This article will uncover the secret of aluminum foil pouches for you.
First, the material of the aluminum foil bag.
The material of the foil pouch plays a vital role in its sealing performance. If the material of the aluminum foil bag is thin, or the quality of the material is poor, it will cause the seal to be not firm and easy to be unsealable. Therefore, when choosing an aluminum foil bag, we need to pay attention to the thickness and quality of its material to ensure that it has good sealing performance.
Second, the quality of the sealing machine.
In addition to the material problem of the aluminum foil bag, the quality of the sealing machine will also affect the sealing effect of the aluminum foil bag. If the temperature of the hot press head of the sealing machine is not enough or the pressure is insufficient, it will lead to a weak seal, which is easy to cause the aluminum foil bag to be unsealable. Therefore, when choosing a sealing machine, we need to choose a brand and model with reliable quality to ensure that it has good ferrule temperature and pressure control function.
3. Improper operation.
In addition to the quality problems of the aluminum foil bag and sealing machine, improper operation is also one of the reasons why the aluminum foil bag cannot be sealed. For example, during operation, if the operator does not align the seal of the foil bag or the hot pressing time is not enough, the seal will not be firm and prone to unsealing. Therefore, during the operation, we need to operate in strict accordance with the operating procedures to ensure that the sealing of the aluminum foil bag is aligned and the hot pressing time is sufficient.
Fourth, the influence of environmental factors.
Environmental factors can also have an impact on the sealing performance of the foil pouch. For example, in a humid environment, the surface of the aluminum foil bag is prone to moisture, resulting in a weak seal and a situation where it is easy to be unsealable. In addition, changes in temperature can also have an impact on the sealing performance of the foil pouch. Therefore, when storing and using aluminum foil bags, we need to avoid the effects of adverse environmental factors such as humidity and high temperatures.
Fifth, the problem of the product itself.
In addition to the above factors, problems with the product itself can also cause the foil bag to not be sealed. For example, the air inside the product is not cleaned, or the shape and size of the product itself does not match the foil pouch, etc., can affect the sealing effect of the foil pouch. Therefore, when packaging the product, we need to choose the appropriate aluminum foil bag according to the nature and size of the product, and pay attention to draining the air inside the product to ensure the sealing effect of the aluminum foil bag.
To sum up, there are many possible reasons why the aluminum foil bag cannot be sealed, including the material of the aluminum foil bag, the quality of the sealing machine, improper operation, environmental factors, and the product itself. In order to ensure the sealing effect of the foil pouch, we need to consider and control it from many aspects. First of all, it is necessary to choose an aluminum foil bag with reliable quality and moderate thickness; Secondly, it is necessary to choose a sealing machine with reliable quality and operate in strict accordance with the operating procedures; Finally, care should be taken to avoid the impact of adverse environmental factors and problems of the product itself on the sealing effect of the aluminum foil bag. Only in this way can we ensure that the sealing effect of the aluminum foil pouch is good, and the quality and safety of the product can be guaranteed.