1, Material preparation
Material preparation is the first step in the production of food can metal food containers. After the customer places an order, he must typeset according to the requirements of the order, select the thickness and type of the tinplate material, and check whether the tin plate material is scratched and the texture is uniform.
2.Tinplate printing
An important part of the entire metal food cans making process during printing affects the overall appearance of the food can. Offset printing is used for tinplate printing, which is more difficult than paper printing, and the color difference is not easy to control. Therefore, the effect of tinplate printing is Design effects ,often has slight color differences as long as they are within acceptable limits.
3.Tinplate cutting
After the tinplate material is printed and oil-dried, it is printed on a large sheet of tin plate during printing, so it needs to be cut according to the cutting position. Shearing needs to be done carefully. It must be cut accurately according to the cutting line. If there is a slight deviation, the tinplate material is scrapped.