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Color, a key differentiator
Inkjet evangelists insist that the primary purpose of a digital proof is to match color, not dots. They also accept that color management is an integral part of proofing. Unlike the four process colors that dominate offset, the spot colors prevalent in packaging applications are printed with special ink or combination of inks. Because all proofing is based on CMYK, spot colors have to be simulated. Inkjet is useful for simulating some—but not all—spot colors and for reproducing the extended gamut of flexo presses: Pantone, Hexachrome, Opaltone, Ultratone, etc. Color management employs a technique known as "dithering" to simulate colors that are unavailable within the inkjet printer's recognized color gamut.
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