earticle

영어

GCR(gray component replacement) refers to replacement of the gray component of trichromatic colors with black during color separation, and the black printer for process color printing is determined by GCR. For high quality offset color printing, not only the GCR method for actual printing system but also the method for color proofing system has to be examined enough to prepare the optimum black printers.
In this paper, the considerations for the optimum GCR methods for both dye sublimation type digital proofer and actual offset press are discussed and recommended via the comparative analysis on color differences and spectral reflectance curves between the color patches before and after GCR of various percentage.