How to keep up with the color of digital sample in print

1. The color with color problem at a time

Printing production, a color (CMYK) with color is difficult, mainly because ink hue withprintMachine ink color is different, a color digital sample by different proportion of CMYK ink synthesis deviceconsumables.And when printing CMYK monochrome, add and subtract the ink quantity will only change the color depth, will not change the color hue central printing.Therefore, once the color is wrong, cannot follow to the digital sample.

2. The problem of neutral grey with color

Neutral gray is also difficult to with a color, in the printing process, some color version of the site a little change (or even 1% of the network changes), the human eye can feel that for printing, it is difficult to control network in the small scope changes.

3. The secondary color dark color and color problem

Secondary color refers to the C + M Y and Y + M, C, C + + K + K, M, Y + K, the color of dark color part in printing with color is hard to match completely, especially the violet C + M synthesis, synthesis of bright red Y + M, with neutral grey with the same color as the truth, the human eye is sensitive to the color, printing ink quantity change slightly, can produce a lot of visual changes.

4. The combination of the shades of the same color of large area and image

A large area of color piece in ink capacity is much, but also easy to see the difference of color, when large areas of color piece and image in the same ink road, printing ink quantity control is very difficult to take care of both at the same time.

5. On the contrary is tonal combination

The same ink key positions have main colors instead of the image, it is not easy to printing with central color printing.Top row of a blue sky the scenery, for example, the following row a portrait, in order to highlight the blue sky above, need to increase the amount of ink, C and in order to highlight the character color need to reduce C ink supplies.This onceDigital proofingA slight deviation, cannot by adjusting the quantity of printing ink color.

6. The color proofing and color

From the current actual production conditions, basically can not achieve the color simulation proofing central printing.Hue of the color is given priority to with standard chromatography, digital proofing is only for referenceprintingThe market.In the process of proofing, are generally converts the color ink CMYK four-color, again with printing ink to simulate, around the color CMYK overprint color process, prone to error