The first step is to corona one surface of the prepared PET film;
The second step is to apply glue on the corona surface of the PET film through a coater, and send the glued PET film into the oven;
The third step is to directly wind the PET film from the oven into a parent roll;
The fourth step, after the rewinding of the parent roll is coded, it is sent to the ripening room for ripening;
In the fifth step, the matured parent roll is fed to the multi-axis laminating machine according to the first-in first-out principle for multilayer laminating. When laminating, the PET film is first laid flat and no bubbles are attached to the parent roll. Then another PET film is bonded to the PET film without bubbles, and the bonding is repeated.