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The first is gray balance. According to the experience of theory and production practice, the most difficult color to control is the gray balance. Gray balance is under a certain printability, yellow, magenta, and blue three-color version from shallow to deep according to a certain proportion of dot overlap printing to obtain different brightness achromatic (white, light gray, gray, dark gray, black), namely The visually neutral gray color affects many factors. The amount of ink used for printing, paper, full plate density, dot area, overprint, and screen line number all contribute to the balance of gray balance. It is the most test machine's overprint accuracy and operator skill level.
Followed by the superposition of several color dots, especially over 70% dot. Specifically, dark brown, brown, dark green (flat net, blue 70), dark blue, violet blue, etc. are difficult to print due to the difference in color, so it is difficult to find a balance on the printing machine.
What is more difficult to print again is the four empty words. Too many multicolor polar lines are very difficult to print with extremely thin lines, and the machine's grippers are extremely demanding. This is a relatively common problem, so the prepress designer must check that the black text in the publication document, especially the small print, is not only on the black version, but on the other three color versions. If it does, the quality of printed products will be greatly reduced. When RGB graphics are converted to CMYK graphics, black text will definitely become four-color black. Unless otherwise specified, it must be dealt with.
The last printing is generally full version of the thing, spot color full version or area is larger, anti-white characters, the same logo, the same color, is generally difficult to follow color, easy to produce color, ghost, dirty, scratches phenomenon.
In short, qualified prints must satisfy: First, accurate overprinting; Second, uniform ink; Third, outlets full; Fourth, ink and water balance; Fifth, printing products without print failure, such as dirty, scratches, flower version, paste version; Strictly loyal to the manuscript. We must pursue high-quality prints to suit people's ever-increasing aesthetic concepts.
Discover the hardest colors to print
Prints are dotted with our lives, adding beautiful colors to our lives. What are the characteristics of qualified prints? The popularity of printing is very wide, and there are many issues that need attention. Today, we will focus on what kinds of colors are the most difficult to print and what elements we should pay attention to when designing.