The most common, of course, is varnish, because most customers choose empty tin can for packaging. Many times they want to reflect the characteristics of personalized metal tins, such as metallic luster. Then varnish is the best choice. It can be based on the original tin can. It makes the printing effect better and brighter, and even glitters in the sun.
The second most commonly used is matte oil. Some customers' designs want to make the surface of the personalized metal tins have a deeper color, and the texture of the empty tin can is more textured. The process of surface printing with matte oil, or the printing process of partial matte oil and matte printing matt alternately.
In addition, there are some special inks, such as explosive oil, rubber oil, etc., which are also used in the printing of personalized metal tins, but they are less used than the first two.
What ink is used on the surface of the personalized metal tins depends on the customer's graphic design and the final desired effect. As a professional metal tin manufacturers, it should communicate with the customer in detail before printing the tin plate material, because the customer may be good at graphic design but do not understand Printing process and actual effect of empty tin can, at this time we need to provide corresponding professional opinions to customers