Spot color ink refers to the pre-mixed ink of specific color, such as fluorescent yellow, pearl blue, metallic gold and silver ink. It is not mixed according to the four colors of CMYK. Color means accurate color.
General spot color printing is usually used for printing below three colors. If more than four printing colors are required, it is appropriate to choose CMYK four-color printing. Since CMYK four-color printing is basically halftone overprinting, and the use of halftone color is basically solid printing. Although the spot color is usually only partially used in the image, in the evaluation, it is usually estimated to be twice the price of ordinary ink; in addition, if There are already four printing colors on the same page, which is equivalent to one more color for printing. If the printing machine does not have redundant printing units (such as less than four color printing presses or four color printing presses), it will take twice as long Can be printed, and the cost will be higher.
In short, special care should be taken when using spot colors, otherwise it will not only cause color distortion, destroy creativity and design, but also increase economic expenditure and unnecessary time waste.
In addition, it is best to apply a layer of oil to dot color printing, which can effectively avoid or reduce the phenomenon of friction, dirt and drag. Compared with ordinary four-color, the light spot color printing lasts a little longer, and the requirements for each link are stricter. , So the price of spot color printing is higher.
