Quote:
Originally Posted by Soilworker
Pantone inks are meant to be special colors that can't quite be hit by a simple CMYK mix. They are typically out of the the CMYK color gamut. What this means is that there are only so many colors that can be faithfully represented by using just CMYK.
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Sorry I think a slight missunderstanding. What makes a Pantone colour a Pantone colour has nothing to do with the gamut. Many Pantone colours are reproducable in CMYK. The difference is that they are out of the bucket colours. Yes there are Pantone colour that cannot be translated to CMYK, but it is not the lack of ability to reproduce a colour that gives it a "pantone"ness.
Some pantone colours are used to print with 2 colours or large solid areas, or match with textiles, all sorts of reasons.
Neither Pantone colours nor CMYK colours are independant of the substrate, paper. (Compare Pantone 116 C and Pantone 116 U)Same ink on different paper gives different results. This is why in recent software there is the possibility of using standard LAB values for pantone. The LAB is then converted colometrically to the CMYK values of your output profile, which if you have a good output profile describing your process will give better accuracy.
