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Spreading CMY on a reverse in black

Aug 16, 2012 11:37 AM

If I'm doing reversed out type in a black box, but the black box is done in CMYK as a rich black, what do I need to do to the ID file to spread the C,M, &Y so there is absolutely no whisker of these colors along the edge of the type. Using CS5.5.

 
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  • Currently Being Moderated
    Aug 16, 2012 11:54 AM   in reply to GA_Anderson

    Um, how is spreading the CMY into an area with no ink helpful?

     
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  • Rob Day
    3,139 posts
    Oct 16, 2007
    Currently Being Moderated
    Aug 16, 2012 12:40 PM   in reply to GA_Anderson

    If you are using InDesign's built in trapping— via the Print dialog when you print separations—it happens by default. The amount of spread is determined by the page's trap preset's Trap Width Black setting, which by default is 2x the normal  width:

     

    Screen shot 2012-08-16 at 3.38.45 PM.png

     
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  • Rob Day
    3,139 posts
    Oct 16, 2007
    Currently Being Moderated
    Aug 16, 2012 1:14 PM   in reply to GA_Anderson

    Here's the rich black trap exaggerated a exported to PDF:

     

     

    Screen shot 2012-08-16 at 4.11.49 PM.png

     

    Screen shot 2012-08-16 at 4.11.56 PM.png

     
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  • Currently Being Moderated
    Aug 17, 2012 1:37 PM   in reply to GA_Anderson

    This trap is called a keepaway.

     
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