At present, the vast majority of aluminum foil printing in China is printed using solvent-based inks with relatively high toxicity. In order to enable printing products to meet hygiene standards (2 mg of solvent residue per square meter), printing manufacturers increase the drying temperature in the printing process. Increased hot air, the purpose is to reduce the residual solvent, in fact, is a temporary solution.
The standard aluminum foil printing ink produced with pure tap water can be printed in the same manner as the solvent ink. Only the printing plate can be made into a shallow plate, so that the ink consumption per square meter is only half that of the solvent ink, and the unit price ratio of the ink. The solvent ink is 10%-20% lower, the printing speed reaches the speed of the solvent ink, the thinner is mixed with tap water or ethanol and water according to a certain proportion, the printing process is harmless to the human body, non-flammable, non-toxic, odorless, completely in line with the environment Claim.
The use of ink and ink to print pharmaceutical foils is a matter for the benefit of the country and the people. With an overall printing cost accounting, less than half of the solvent inks, the performance of printed materials exceeds that of solvent inks.