We encountered a Japanese customer who requested that the roll film we provided them must be very smooth in both vertical and horizontal directions, that is, cut a piece of film and spread it flat on the desktop without curling.
The customer's material is not very complex, it's just PET/AL/PE.
Generally speaking, the film always has some curling, whether it is vertical or horizontal, which is something that flexible packaging people seem to take for granted. However, customers have presented us with this so-called "industry common problem" problem.
After careful research, we found several improvement directions, tailored the medicine to the situation, solved customer problems, and also won customer orders.
