Views: 0 Author: Site Editor Publish Time: 2023-06-14 Origin: Site
Metal cans usually store and protect food that needs to last a long time. Mostly, aluminium and tinplate is the can's main materials. Usually, the coding of metal can food production depends on the high temperature and oil situation. So the coding mentality can with these features:
Firstly, the ink has strong adhesion. It makes sure the ink stays on the metal for longer and doesn't fade quickly. Secondly, ink can resist oil that is still clear in a greasy environment and hard to remove. Thirdly,the ink can hold high temperatures. Canned foods must undergo a sterilisation process at high temperatures. When steam or water meets the ink, the ink changes from greenish-black to blue. This colour shows the producer that the marking process is over.
