Four-color process printing is where a shading picture is isolated into 4 distinctive shading esteems (called a shading partition) by the utilization of channels and screens. This used to be finished with the photographic film on a realistic expressions camera, yet is typically done carefully with programming now. The outcome is a shading partition of 4 pictures that when exchanged to printing plates and consecutively imprinted on a printing press with the hued inks cyan (blue), (red), yellow and dark imitates the first shading picture. A large portion of the whole range or extent of hues are duplicated with simply the four procedure ink hues. The four shading printing process is generally utilized as a part of the realistic expressions and business printing industry for the proliferation of shading pictures and content
Hexachrome is a six-shading printing process planned by Pantone Inc. Notwithstanding custom CMYK inks, Hexachrome utilizes orange and green inks to grow the shading range for better shading propagation. It is subsequently otherwise called a CMYKOG procedure. The essential inspiration driving Hexachrome was to influence a printing to ink system that could depict brighter and clearer pictures by having the ability to convey more correct shades. Using this system as opposed to the CMYK ink structure prints furthermore considered more exact skin tones and pastels. The Hexachrome system let customers print pictures from PC screens that were not prepared to be unequivocally duplicated some time as of late. Furthermore, also conveying general favored quality over past structures, Hexachrome in like manner extended efficiency as it made various more spot tints. Having more spot tones extended efficiency by empowering the press to use one ink set for all businesses, instead of one demonstrated ink set for every action. Keeping a printer intended for Hexachrome moreover discarded the amount of washes required on the printer; thusly saving conditions and streamlining printing creation.