Tianjin Carton Factory: What is the method of determining the color printing of the carton？If it's multicolor overprint，Count the number of dots in each color，Generally speaking, the color of the overlapping part is four-color (CMYK);Focus on the more colorful blocks and text throughout the screen，If it's not made up of dots，Usually spot color printing，Count how many of these colors there are，If it's from a network，See if it is a normal four-color (CMYK) overprint，If not, it's a color，The next step is to distinguish between spot colors that don't duplicate，If there is a repetition, the corresponding chromatic number is removed，The final four colors (CMYK) plus the spot color number is the color number of the entire picture。