What details should you pay attention to when making a stretch can?

2020-02-12


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According to the bottom process, iron cans can be divided into three categories.They are the bottom iron cans, the buckle bottom iron cans and the tensile iron cans.Stretched iron cans differ from the other two types, and there are a few points that need special attention when making them.

Because the cans of the iron cans are stretched to varying degrees depending on the height of the can body, the higher the height, the more obvious the stretching, so there are several problems that require special attention. First, the deformation of the printed pattern, due to the stretching of the can body, the original printed pattern of the surface will be deformed to varying degrees, so this problem should be taken into account in the design of the can, so as to avoid serious disagreement with the design pattern after the can is formed. The second is the surface of the stretching tank, which will have different degrees of blackening. The varnish tin can is the most obvious. Even after printing the iron can, after stretching, the color of the stretched part and the unstretched part also have Large difference. Therefore, when the customer chooses to do the stretching iron can, the salesman should communicate these problems with the customer clearly to see if the customer can accept it. If it is not acceptable, then the customer chooses the tank type of other structure.

Stretching iron cans, usually do not mind the customer to do too complicated design, the stretching part with the simple or pure background color design is best, and the stretching part is best not to do the convex, even if there is a convex, convex part There is also no pattern, because the pattern will be deformed after being stretched, it is difficult to position when it is convex, it is easy to be biased, and the scrap rate is high.

Stretched iron cans have certain limitations, the height can not be too high, otherwise it is easy to pull, and the height of the can body can not be larger than the diameter. Stretched iron cans have higher requirements for iron, not too thin, and at least 0.25mm of iron is used.



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