Mike, I was under the (wrong?) impression that PANTONE distributed a "generic" Extended Gamut multi-color ICC profile that faithfully matches their PANTONE Extended-Gamut Process Guide? / Roger -----Original Message----- From: colorsync-users-bounces+graxx=videotron.ca@lists.apple.com [mailto:colorsync-users-bounces+graxx=videotron.ca@lists.apple.com] On Behalf Of Mike Strickler Sent: 24 décembre 2015 15:57 To: colorsync-users@lists.apple.com Subject: Re: Multi-color ICC profiles The Esko system referenced below does not use ICC profiles, but rather a collection of 4-color lookup tables, based, like ICC profiles, on measured charts. A true n-color ICC profile is a different creature. Whatever system one uses, the complications come in when dealing with designs in which spot colors gradate and interact with each other and with process colors in overprints and blends. Where existing CMYK+spot color designs must be converted, this must all be sorted out by the software. I touched on this matter in my recent presentation on extended-gamut printing for packaging at the PIA Color Conference. The slides can be downloaded here: https://vip.soonr.com/1/filelink/bup3i-bihm4mo-zpnkxo5i#/file/ViewFile.actio... The Pantone Extended-Gamut Process Guide is not intended as a separation table but rather as a designer's guide for previewing possible limitations of the process, assuming one will be printing with a similar 7C system. The exact builds depend on all the usual system variables--ink, paper, screening, etc. These can only be derived from teh actual print condition, normally by profiling the press. In any event, having the correct n-color breakdowns may not be nearly sufficient, as explained above. Season's Greetings, Mike Strickler MSP Graphic Services On Dec 24, 2015, at 12:00 PM, colorsync-users-request@lists.apple.com wrote:
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Message: 1 Date: Wed, 23 Dec 2015 20:30:44 +0000 From: "Printservices, SF" <sf.printservices@landor.com> To: "colorsync-users@lists.apple.com" <colorsync-users@lists.apple.com> Subject: Re: Multi-color ICC profiles Message-ID: <D2A042A6.4A3DD%sf.printservices@landor.com> Content-Type: text/plain; charset=us-ascii
Hi,
I know from first hand experience that Frito Lay has been using an expanded gamut process for several years. Here are some links to current vendors using an expanded process color workflow: http://www.sgsintl.com/solutions/brandcont/extgamut.html http://www.robbieflexibles.com/Solutions/Capabilities/Printing---Conve rting .aspx
Example of Green Giant packaging using Expanded process printing is on page 28 of this article: https://www.flexpack.org/ACHIEV/2015_Awards/InnovationShowcase.pdf
Discussion going back to 2010:
http://printplanet.com/forum/prepress-and-workflow/color-management/87 10-hi gh-fidelity-printing
Thanks, Gary Scott Xerox Client Ops, Graphics II On Site @ Landor 1001 Front Street | San Francisco, CA 94111 United States 415-365-4418 work | 415-370-6619 cell landor.com <http://landor.com/> | SF.PrintServices@landor.com
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Message: 2 Date: Wed, 23 Dec 2015 20:58:49 +0000 From: "Printservices, SF" <sf.printservices@landor.com> To: "colorsync-users@lists.apple.com" <colorsync-users@lists.apple.com> Subject: Re: Multi-color ICC profiles Message-ID: <D2A04ABE.4A405%sf.printservices@landor.com> Content-Type: text/plain; charset=us-ascii
Esko has built their Equinox product around expanded gamut workflows. https://www.esko.com/en/products/overview/equinox/overview/
Pantone has published Extended Gamut guides. https://www.pantone.com/extended-gamut-coated-guide
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