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Black vs Color ink - Was Re: "Dot Gain"



I'm also interested in the black vs color ink "dot gain" cum bleeding question.
On papers like Concorde Rag with an Epson 1200, and OEM ink, the black seems to
bleed much more than the colored inks, and I've seen apparent differences with
both MIS Archival and Generations inks between their respective black and
colored inks.

Now, I'm not at all sure that these differences aren't more due to the way the
printers handle black than the intrinsic properties of the ink. I believe the
printer uses all the colors to create a rich black, not just the black ink
alone. If so, and if the paper/ink combination is marginal to start with, the
extra ink could push it over the edge so the black areas bleed. All this argues
yet again for well done ink/paper specific profiles so this can be kept under
control by limiting ink flows as needed.

Anyone out there who actually knows what they are talking about have any
comments? I'm just guessing.

Ralph


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