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What are CMYK printing and Spot-color printing?
CMYK: also called four-color printing. It is to use CMYK (cyan, magenta, yellow, black) four colors to overprint the desired color. In layman’s terms, it is to use the different superposition of these four colors to obtain the required color, as long as the color has a gradient, it is all four-color overprinting. Four-color printing is superimposed with dots, and