Generally speaking, the selected prime electrolytic tinplate printing ink should meet the following conditions.
(1) The selected ink must have a test report of heavy metals and other harmful chemical substances produced by the SGS testing agency to ensure that the heavy metals and harmful chemical substances in the ink do not exceed the standard.
(2) There is an MSDS (Material Safety Data Sheet) report. Internationally known as a chemical safety information card, it is a comprehensive document about the combustion, explosion, toxicity, environmental hazards, safe use, emergency treatment of leakage, main physical and chemical parameters, laws and regulations of hazardous chemicals.