It's hard to say where customers get these ideas, but we haven't as an industry been very successful at communicating about color to others. One could even say that it is not helpful that the current Pantone libraries still include a "Pantone Black" and a "Pantone Yellow" that are not ISO 12647 colors at all (the yellow being especially different). But perhaps that's no worse than changing the Lab specs if not the composition of base mixing colors (e.g., Reflex Blue, Rubine Red) and colors mixed from them while leaving their names unchanged. I recently became aware of a very large discrepancy between the Lab values in the database for Pantone solid colors of a large ink company and those in any of the last three versions of the Pantone Solid libraries. Where did the ink company get those values? Nobody seems to remember. This is the world we inhabit. Mike Strickler MSP Graphic Services
Message: 2 Date: Mon, 07 Mar 2016 15:18:05 -0500 From: Michael Eddington <meddington38@gmail.com> To: Todd Shirley <todds@urbanstudionyc.com> Cc: "'colorsync-users?lists.apple.com' List" <colorsync-users@lists.apple.com> Subject: Re: "Pantone Process" Inks Message-ID: <CAJk2YzAcL1PvJ5VqPmHH5vDLuwcutapLe-eWswgYq4ksrW-FMA@mail.gmail.com> Content-Type: text/plain; charset=UTF-8
Your interpretation is correct…Pantone CMYK primaries are governed under ISO 2846-1.
http://www.pantone.com/help/?t=CMYK-Primaries-not-found-in-PANTONE-FORMULA-G...