Four primary colors in CYMK printing
CMYK=4C=full color printing (different guests have different expressions)
It can bring up all colorful printing effects, with gradient, colorful, and rich color changes
Disadvantages of 4C printing: It is difficult to follow colors, and there will be a certain color difference in each printing. Generally, 4C printing does not require strict color matching, and if there are requirements, it can only be done as much as possible.
