CMYK Printing Tinplate For chemical tin

How to distinguish four-color printing and spot color printing?

There are two types of spot colors and four colors. How should we distinguish them?

Four-color printing:

The four-color printing is printed with four basic inks, blue, red, yellow, and black, using offset printing (like paper printing). Many different patterns can be printed. Careful observation with a magnifying glass can be seen on the printing. There are halftone dots (like the TV display, there are pixels, and the effect is enlarged by N times), so the four-color printing is actually a combination of halftone dots.

Spot color printing:

Spot color printing is compared with the color on the color card, and the ink is adjusted first, and then printed, so that only one color is printed. Of course, according to the customer's product design, there can be different shapes and different patterns. Spot colors are superimposed to form different colors and patterns. Because spot colors are not hit colors, there are no dots on the surface, and they look smooth.

Some differences between four-color and spot color printing:

Cost: The tinplate printing machine is a two-color machine (only two colors can be printed at a time, unlike four or six colors at a time like paper printing), so a four-color printing requires two passes.

For spot color printing, one spot color needs to be printed twice. Two spot colors can be printed at one time. Therefore, to print two spot colors, two passes must be printed. Therefore, the printing cost of two spot colors is the same as that of a four-color printing. The cost is the same. When you print four spot colors, the cost is the cost of two four-color printing, so the printing cost will increase.

Color: The four-color printing is the hit color, so each time the printing ink is slightly different, the hit color will have a certain deviation (because the printing is completed by the joint operation of the machine and the human, so it is batched During the second printing, it is impossible to adjust the ink mixing ratio to be absolutely correct. Therefore, there will be some deviations between each batch of printing in the four-color printing. The printing factory promises to keep the color consistency of the sample at 90%. about.

Spot color printing is done after adjusting the ink. The ink is adjusted according to the Pantone color card, so the color difference is a little less than the four-color printing.

The surface is beautiful: Because the four-color printing is a hit color, the dots on the printing are clear when viewed with a magnifying glass. Therefore, the surface of the four-color printing is relatively rough when you look closely.

The spot color 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 can only print a single color. So the interior products are not the same, and the choice of tin box packaging printing is also different.

How to choose four colors or spot colors:

In general, if you need to produce tin box packaging with more complicated patterns, we recommend that customers choose four-color printing. If the pattern is relatively single and the color is only one or two, the choice of spot color printing will bring more highlights. Especially for a large area of a single color, it is better to choose a spot color, so a four-color pattern design, if there is a large area of a single color, you can also choose a four-color printing plus a spot color printing, of course, In this way, the production cost of the final tin box packaging is a bit higher.

Production capability: