The nine most difficult colors to print on bags?
Time:2024-07-01
Views:421
1, gray balance
According to theory and experience in production practice, the most difficult to control the color of the print is gray balance.
Gray balance is in a certain printability, yellow, magenta, cyan, three primary colors from light to deep according to a certain dot ratio combination of superimposed prints to obtain different brightness of the achromatic (white, light gray, gray, dark gray, black), that is, to get the visual neutral gray color.
Influence of many factors, printing the amount of ink used, paper, full plate concentration, dot area, overprinting and the number of screen lines, will have an inextricable influence on the gray balance, which is the most test of the machine‘s overprinting accuracy and the operator‘s skill level.
2, 4-color overlay and 3-color overlay
Full color do not print (recommended to use spot color printing).
3, do not know how to print the design of the most difficult to print
Color is one aspect, too many very fine, very small words through the white and so on.
4, C = 50, M = 50, Y = 50, K = 50 large flat screen
There is a little bit of disallowed on the serious off-color.
5, text for the four colors
6, there is also a black background is not good to deal with
Black bottom for the effect of available special black ink or print twice, it is not very difficult to print, more labor intensive.
7, the superposition of several color dots, especially more than 70% of the dots
Specifically, dark brown, brown, dark green (flat network, containing blue 70), dark blue, purple-blue, etc. Due to the existence of color differences, it is not easy to find the balance in the printing machine.
So are very difficult to print the color.
8, printing in general full plate stuff
Spot color full plate or a large area, anti-white characters, the same logo, and the same color block, it is generally difficult to follow the color, easy to produce color difference, ghosting, scuffing, scratching phenomenon.
9, gold, silver fine text
Professionals say that the fine print is afraid of the batch process dry plate, these are to operate the process control in place, the plate should be wiped clean, ink viscosity control at about 14, and pay attention to the dry plate.
In short qualified print must meet:
Precise overprinting; ink color uniformity; dot full; ink and water balance; prints without printing faults, such as rubbing dirty, scratches, flower plate, paste plate, etc.; strictly faithful to the original manuscript.
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