Do you know a few tips for printing tinplate cans?

The tinplate can is what we usually call a tinplate can, made of tinplate. Due to the particularity of tinplate, its printing process is different from the surface printing of ordinary objects. The following are some tips for printing by packaging iron can manufacturers.

Before color printing, the printing area needs to be whitened, because white is the primary color of all colors, and the color printing after white printing can highlight the color better. Affected by the ink coverage, monochrome machines often need to add whitening twice, and the whiteness can reach about 80%. It is also required that the white paint and tinplate can have good bonding power and can withstand high temperature baking without discoloration.

The printing of tinplate cans has relatively high requirements for color. In addition to the high water resistance of pigments, the pigment's coloring power and durability are also relatively high. In addition to having the characteristics of general offset printing inks, it should also have heat resistance. Since the surface of the tinplate can is smooth and does not seep water, the ink is hot-solid and needs to be baked at high temperatures.

Because the surface of the tinplate can is water-permeable, a drying chamber is required during the printing process. The printed ink needs to be baked at high temperatures to fully integrate with the surface. Insoluble in water and does not absorb solvents. This is also a problem with offset printing such as tinplate printing. A difference is also a problem that we need to pay special attention to. Therefore, the tinplate printing assembly line will be longer than other offset printings.