QTR-Quadtone RIP

On Fri, Apr 4, 2008 at 2:38 AM, Ernst Dinkla <E.Dinkla@...> wrote:

>   masseurwolfe wrote:
> > Hi all,
> >
> > I am a newbie using QTR for a novel application. I work in a research
> > lab, and we're printing metals onto a piece of glass using MIS
> > refillable cartridges. What I'm hoping to do is designate each
> > grayscale value (0 to 255) a combination of specified ink densities
> > from three cartridges. From what I've been able to gather, I think
> > what I need is an ICC profile, but I may be wrong. I'm not sure how to
> > construct this, since it won't be a linear setup at all. Any ideas?
> >
> > Thanks,
> > Wolfe
>
> If your goal is linear output: Basically none of the quad
> custom solutions discussed here are linear in output. The
> partitioning part of QTR should take care of a 3 partitioned
> ink system. For that you need a transmission densitometer
> that can cope with your metal image on glass (I guess it is
> transparent glass, kind of mask fabrication process ?) and
> apply the data you get from that meter to the method of
> partitioning and linearising as described in some docs for QTR.
>
> If the process you are working on is intended to create
> images for humans then ICC profiling could be a next step
> after linearising the output. It will still be a tricky
> thing as I guess transmitted light will be the white of the
> image and the contrast range will be many times that of the
> usual (gloss) B&W print. More monitor like.
>
> If the process has a totally other purpose like mask
> fabrication for chip lithography (over the top guess :-)
> then linear output should be enough and the best base to
> work with.
>
 That is a good guess, but no, we are using this for combinatorial printing
of metal nitrate solutions, then oxidizing them in a furnace.


>
> --
> Met vriendelijke groeten, Ernst
>
> | Dinkla Grafische Techniek |
> | www.pigment-print.com |
> | ( unvollendet ) |
>
> 
>


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