Nowadays, there are more and more types of shaped cans in tinplate packaging, and spherical tin cans are one of them. Spherical tanks, as the name suggests, are round in shape and are a sphere. Because of their sleek shape and unique vision, they are popular among consumers. Spherical iron cans are mostly used for candy packaging, tea, tea packaging, gift packaging, etc. Spherical iron cans are a very difficult type of metal, and have high requirements for can equipment and operation technology.
First, the requirements for design
Since the spherical iron can be integrally stretched during the production, the surface printing pattern is deformed, and even in a single color, the surface may be dark. Therefore, in the design of the spherical iron can, these problems need to be considered. If the design is made according to the conventional iron can, the product made may have a great contrast with the design effect.
Second, the requirements for the equipment
Spherical iron cans are different from ordinary square and round cans. The equipment requirements are very strict. If the equipment is poor, the finished products will be deformed, oiled, and the tightness is not suitable.
Third, the requirements for printing
Spherical cans have high requirements for printing due to the large stretching range. Due to the deep drawing, the can body is easily oiled, so it is necessary to use an ink with strong adhesion.
