Aluminum foil sealing gaskets (also known as aluminum foil gaskets or aluminum foil sealing films) may encounter such problems when using them to seal bottles: After sealing with an electromagnetic induction aluminum foil sealing machine, it is found that there is always a seal somewhere between the sealing film and the bottle mouth. It is not strong, and most of them are sealed. This phenomenon may be caused by the following reasons:
1) The bottle cap is not tightened (this problem only needs to be solved by tightening the bottle cap every time it is sealed).
2) The bottle mouth is not flat (if the bottle mouth is obviously not flat, you can contact the bottle manufacturer to solve it. If there is no solution, you can use a special mold cover to seal it. If it is not obvious, you can use aluminum foil with thicker paper pads).
3) There are very obvious burrs on the bottle mouth (cut off the burrs and then seal, usually contact the bottle manufacturer to solve this problem for you).