Four-color for printing tinplate:
Colours printing tinplate 4 uses four basic inks: blue, red, yellow, and black, and is printed by offset printing tinplate (printing like paper). Different patterns can be printed. Look with a magnifying glass. The upper surface has dots (like a TV). The display of the machine is the same, with pixels, after being enlarged by N times, it is composed of dots.
Spot color for printing tinplate:
Spot color for metal printing tinplate sheet is based on the color on the Pantone color card. First adjust the ink and then print. Only one color is printed. Of course, according to your design, you can have different shapes and patterns. Several spot colors can be used together. It is composed of patterns of different colors, because the spot color is not the color that is bumped out, because the surface has no dots, and it is relatively smooth.
The difference between four colors and spot colors for metal printing tinplate sheet:
1,Cost is different:
The printing tinplate machine is a two-color machine (only two colors can be printed at a time, unlike paper that can print four or six colors at a time), so colours printing tinplate 4 needs to print twice.
For spot color metal printing tinplate sheet, one spot color needs to be printed twice, and two spot colors can be printed at a time, so if you print two spot colors, you need to print two times, so the printing cost of two spot colors is the same as one four-color printing. The cost of printing is the same. When you print four spot colors, the cost is double of the cost of four-color printing. So the printing cost will increase.
2,Color is different:
Four-color printing tinplate is the color of the collision. Because the amount of ink printed each time is different, the color of the collision will be biased (because the printing is done by the joint operation of the machine and the human, so each batch of printing tinplate is impossible to adjust the ink absolutely correctly, so there will be deviations between each batch of colours printing tinplate 4), the printing factory promises to be about 90% with the model.
In spot color printing tinplate, the ink is adjusted before printing.The ink adjustment is adjusted according to the Pantone color card, so the color difference is less than the four colors.
The surface is beautiful: because the four-color printing is the color of the collision, the `top` surface has dots, looking at it with a magnifying glass, the dots on the `top` surface are very clear, so the surface is relatively rough if you look closely. Printing has no dots, and the surface is relatively smooth, which is relatively good-looking.Of course, four-color printing can print colorful patterns, while spot colors metal printing tinplate sheet can only print patterns with a single color.
