I can't find PANTONE Prcess Cyan, PANTONE Process Magenta, PANTONE Process Yellow or PANTONE Process Black in my PANTONE PLUS SERIES Formula Guide or Solid Chips. What happened?
With the introduction of the PANTONE PLUS SERIES in May 2010, the four CMYK primaries, PANTONE Process Cyan, PANTONE Process Magenta, PANTONE Process Yellow and PANTONE Process Black have been removed from the PANTONE FORMULA GUIDE and PANTONE SOLID CHIPS, simply because these products deal with solid-color printing, and the CMYK primaries are not intended to be used as spot colors. In a technical sense, these are not truly PANTONE colors; rather, they are Pantone's representations of the colors defined under ISO 2846-1 for CMYK printing.
The four primaries are found in the following products which deal with CMYK printing:
PANTONE COLOR BRIDGE Coated & Uncoated Set
PANTONE CMYK Coated and Uncoated
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