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QTR-Quadtone RIP

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Thread

Reducing grain in prints

Reducing grain in prints

2007-10-15 by Mark McCarvill

I'm seeking suggestions on how to reduce `grain' in my QTR
prints on Entrada natural. I'm using UT7 inks with eboni black on a
7600, printing at 1440 super. Here  <http://www.stepwise.ca/QTR.jpg> is
a test strip to illustrate the problem.

For those interested, here <http://www.stepwise.ca/QTR_Curve.jpg>  is
the detailed curve data.

In a nutshell, I'm using a very low ink limit (30%), which I know
contributes to grain. But going higher (even 35%) results in shiny, inky
lines in the 90 - 100% black patches. And printing at 2880 doesn't
improve things.

Any ideas would be welcome on how to introduce more smoothness without
adding excessive ink.

Thanks




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