(1) Heat resistance: The ink must have good adhesion with tinplate after being cured by heat, and the pigment does not change color after baking.
(2) Processability: Can withstand bending, stamping, drawing, etc.
(3) Lead-free; ink components do not contain lead.
(4) Dryness: Generally, 1% desiccant has been added to the ink in the ink factory, and 1-2% desiccant has to be added during printing, but it is not suitable to reach more, otherwise the ink is easy to crust or bake during construction. over.
(5) wet coating, no ink loss, fading, color mixing and other ills.
(6) High-temperature sterilization: The ink does not change when the food cans are sterilized.
(7) Light resistance, weather resistance: It is especially important when only metal container ink coating is applied (no face paint).
(8) Transparency: When the metallic surface gloss is used as a printed body, the ink transparency is very important.
(9) White Ink: Apply a primer on the metal surface before applying the ink.