Requirements for food packaging tin cans coatings:
1.Food packaging tin cans coatings have good storage stability;
2,The solvent in the food packaging tin cans coatings is less harmful to the human body;
3.Gold lacquer inner coatings used for cans should comply with relevant national health standards;
4, Food packaging tin cans coatings is convenient construction, simple operation, a good black coating film is formed after baking and curing;
5. After food packaging tin cans coating film is formed, it should have the required adhesion, hardness, impact resistance, chemical resistance, compactness and welding resistance together with the substrate to meet the process requirements of can making and lid making.
6. After the canned food is sterilized and cooled, the food packaging tin cans coating film should have good appearance without falling off;
7.The gold lacquer inner coating film should not affect the flavor and color of the food;
8. The inner black coating film and the substrate should be able to effectively prevent the corrosion of the contents.