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Article #733

CMYK to RGB Black conversion issue

#733
From: Ethan_W
Date: Tue, 17 Mar 2009 14:29
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Upon export to a Photoshop RGB file or an internal conversion in AI, my CMYK black takes on an RGB value of 35/31/32.

I've tried many combinations of color settings, none seem to help the issue. I'm using the CS4 Bridge North American General Purpose 2 (synced) profile. My 'appearance of black' settings are display as rich black, output accurately. Most of my files will end up as spot color separations, so color profiling is not a major concern (should it be?). The raster files are also separated as spot colors for t-shirt printing 99% of the time- although I do some CMYK work on occasion.

This issue seemed to arise with the CS versions of Illustrator (CS2 I think). Although I've created a spot black swatch for new files with 0/0/0 RGB values, many of my old files were created using 100% CMYK Black, which converts to the 35/31/32 RGB as mentioned above.

Thanks in advance for any help, this issue eats up a lot of time converting the weak RGB blacks to a solid black.

Ethan
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Subject: CMYK to RGB Black conversion issue
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Date: Tue, 17 Mar 2009 07:29:41 -0700
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