Requires ink to have good adhesion and mechanical properties
As tinplate prints are eventually made into food cans, toys, metal photo frames, and barrels and cans of chemical products, they need to be cut, bent, and stretched. Therefore, printing inks are required to have good adhesion to tinplate and corresponding machinery. performance. In order to improve the ink adhesion, the tinplate must be white-primed before printing. White is the base color of all pictures and has a very high brightness. After adding other high-energy hue, it can increase the lightness of each hue and form a gradation.