Printing is actually a color reproduction process. In the process of reproduction, there will always be deviation. This deviation is called color difference! Due to the different varieties of each ink (such as environmental protection ink, UV ink, quick drying ink, etc.), manufacturers and raw materials, there are differences in the ink of different manufacturers. Therefore, when turning the sheet for printing, it is best to find the previous printing manufacturer for printing. Generally, the regular manufacturers will not easily replace the ink.
You may have heard the explanation of the printing factory for the color difference, which means that the standard of Chinese printed matter is ± 10% qualified, so how big is the color difference of ± 10%. Let's make a comparison. If the three primary colors are used as the background color, the color difference is completely acceptable.
However, if you mix the two three primary colors in one, you will find that the color difference of dark blue is the largest. As long as the red ink is reduced a little, the color will be cold, and the blue ink is reduced a little, the color will be warm. This is the most difficult to solve, because each ink, regardless of the brand, actually has different color deviation phenomena. Generally, "cyan (c)" is slightly magenta and blue, "magenta" (M) "Generally, it is purple with blue and yellow at the same time, and only" yellow (y) "is only slightly magenta and slightly orange, so it is difficult to print the dark blue on the computer display screen in batches.
Is there a color harder to print than dark blue?
Of course, that's purple.
If the printer sees that the background color is pure purple, he wants to die. This is no joke, whether it is dark purple.
Or light purple.
The color deviation is not a little, but also coffee.
You think this is the worst color bias?
No, there is another color that is recognized as impossible to print, which is 4-color gray.
Because there are too many colors that can appear in 4-color gray, t only shows a few obvious ones for everyone to feel.
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