Many product packaging boxes are now made of iron. Iron is a relatively lively metal. It ranks ahead of hydrogen in the order of metal activities. Therefore, iron is easy to rust, and the rust of tinplate boxes is a chemical reaction. When iron products are exposed to the air for a long time, the…
In the production process of tinplate boxes, the first step is to print iron. The entire sheet of iron is printed according to the design, and then a rectangular iron sheet is cut with a cutting machine, the blank is rolled into a cylindrical shape, and the joints at both ends are welded longitudinally to…
Coating plays an important role in the metal printing tea tin box. It can be said that without coating, it is difficult to have metal printing. Metal flat printing is not the end goal, but a beautification method for metal packaging products. The purpose is to make all kinds of metal containers, such as iron…
