Key points: Which printing colors are the most difficult in printing? Shanghai Printing Factory-Junyue Printing analyzes one by one:
The world is colorful. The current corporate brochures are very colorful. So, what are the characteristics of a good brochure? Today, the editor of Junyue Printing will give you an analysis of what kind of color is the most difficult to print. What kind of color should designers pay attention to and avoid?
1. Gray balance. According to the experience of theory and production practice, the most difficult color to control is gray balance. Gray balance is the combination of yellow, magenta, and green printing plates from light to dark according to a certain dot ratio, to obtain achromatic colors with different brightness (white, light gray, gray, dark gray, black), that is, to obtain vision In the neutral gray. This color is affected by ink usage, paper usage, full-page density, dot area, overprint volume and screen lines, etc. It also challenges the accuracy of machine overprinting and the technical level of printing operators.
2. The superposition of several colored dots, especially the dots above 70%. Specifically, due to the color difference between dark brown, brown, dark green (flat screen, including blue 70), dark blue and purple blue, it is not easy to find a balance in the printing machine, so they are all difficult to print.
3. Four-color overlapping missing characters. Too many multi-color polar lines are very thin, and very small characters are difficult to print, so the paper teeth of the machine are very demanding.
In printing and design, attention should be paid to spot colors or large-area reversed white characters, the same LOGO, and the same color block. The colors need to follow as much as possible, and try to avoid chromatic aberration, ghosting, dirt and scratches.