How many ways to make tea tin packaging?

Tea iron box is a kind of Tinplate Packaging which can be divided into a small part. Because the packaging requirements of tea and other products are not as high as those of beverages, but are higher than those of chemical packaging, although they are both tinplate packaging, there are also many varieties, and there will be some differences in technology. The tinplate packaging we see on the market is generally the same as that of tea iron boxes, such as the common moon cake iron boxes, candy iron boxes, toy iron boxes, pastry and specialty iron boxes, which are generally circular, square and irregular. Therefore, the process is generally the following, and basically other processes are extensions of this kind.

1. Printing process: The printing and coating process of tinplate food packaging is basically the same. Because it is food grade packaging, a layer of oil should be coated on the surface after printing. Food grade gold oil shall be applied to the interior, and special transparent oil such as varnish or matt oil shall be applied to the exterior of the printing to maintain the printed picture.