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FLEXO Magazine : June2010
Technologies & Techniques www.flexography.org june 2010 FLeXO 47 colors used in the printing process, the proof can replicate color more accurately than traditional proofing methods. In addition, new inkjet proofers have a greater color gamut and are better suited to multi-color proofing than they have ever been in the past. A multi-color ICC profile can even be used with a plug-in to create optimized separations and in applica- tions such as Adobe Photoshop CS4 and other applications that support multi-color ICC profiles. Although the results can be spectacular, multi-color profil- ing and proofing can be a difficult, complex process. Many vendors mistake Hexachrome support as being the same as multi-color ICC support. This is fine if you are using the six Hexachome colors (CMYKOG). However, many customers use five, seven, eight or even 10 colors on press, requiring that their proofing system use those same five, seven, eight, or 10-color multi-color profiles. Because of this, support for multi-color profiles in your proofing system becomes a critical issue. There are many proofing systems that do not support multi- color profiles, or only partially support them. Also, because there is typically little expertise with multi-color profiling, tech support staff are often at a loss to answer questions related to multi-color configurations. Unless everything is just right between the proofing system, the multi-color ICC profile, and incoming files, the system will fail. This means if customers are changing colors at the last minute, or the files are not prepared with exact separation names matching those in the multi-color profile, the system will fail. I have had my best luck using tried and true combinations of software that give predictable and reliable results. “ We have seen a clear shift in fundamental print practices across the printing industries,” said Marc Levine, director of business development, Color Management Group. “ With G7-based specifications such as SWOP and GRACoL, solid density targets have been replaced with solid colorimetry targets. By mastering the process of hitting solid color on press, it opens the door for printers to go beyond their CMYK gamut by using extended color process inks. With this effort, printers also need to ensure that their proofing systems are up to the challenge. ” Multi-color ICC profiling is not for everyone. If you are print- ing with spot colors and would like an accurate prediction of overprints, blends and tints, then it is worth taking a look at. Though complex, once the system is installed and your own custom procedures are established the results can be rewarding and save you time and money. n ABOUT THE AUTHOR: Ron Ellis is a Boston-based consultant specializing in color management, workflow integration, and press calibration. He has provided installation and training services to dealers, manufacturers, and content creators since 1986. An IDEAlliance G7 Expert and chair of the GRACoL Committee, Ellis has performed over 100 G7 calibrations. In addition to calibrating pressrooms for customers such as Pantone, Ron also specializes in creating internal working spaces for brands and agencies that allow them to work more efficiently with vendors, saving both time and money. Ron is published frequently in industry magazines, and has produced training materials for numerous printing industry vendors and publishers. He can be contacted at 603-498-4553 or through his web site at www.ronellisconsulting.com. theDiff erence! Experience White T: 866.282.7697 F: 800.223.6869 www.AndersonVreeland.com info@AndVre.com (never looked better.) Epson Stylus® Pro WT7900 The World’s First Aqueous-Based White Printing Technology. A New Generation of Flexo Proofing! Contact Anderson & Vreeland for samples, pricing or more information. Epson WT7900 ad v2.indd 1 5/11/10 6:24:18 AM FLX_June2010_mech.indd 47 6/10/10 9:39 AM