QTR-Quadtone RIP

I posted mostly PS curves and ICCs for UT14.  The rip profiles were mostly
left to users.  To a certain extent, however, the same concepts apply.

The way UT14 is set up, if the tones with a starting curve like the
Kirkland glossy N are not quite right, go to the *.acv and simply make
offsetting moves of the Green and Red points.  Note that the dmax is
usually reached before the 100 point.  A curves set with green and red
straight and blue off will help find the dmax point.  Print this test strip
--  http://www.paulroark.com/BW-Info/80-100.jpg  -- with that curve first.

See the Ilford Gold neutral curve for an example of how to adjust glop if
there is bronzing.

For the rip just be aware that the 255 point allows no inks.  So, you have
to start with 254. (I think.  I don't use the QTR-glop combo much.)

As with whether glop can hold down Eboni, see the 1800 URL I noted earlier.
 The 100% point with Eboni was too much for glop to handle.  So, with glop
I used PK at that end.  It'll cause some warmth in the deep shadows.  If
you used the UT14 C the tones would be cool, but it's not 100% carbon
either if long term display stability is important to you.

With lots of glop and a second pass, the problems of pizza wheel marks
becomes serious.

Let us know if you find a way to nail down Eboni that is artifact and toxic
spray free.

Paul
www.PaulRoark.com

On Sat, Jun 23, 2012 at 8:01 AM, jffelinik <felix.niklasson@...>wrote:

> **
>
>
> HI Paul,
>
> Thanks for chiming in here.
>
> My goal is to get as neutral prints as possible, and I really like the
> tone using the Galerie Smooth Pearl papers, its just perfect.
>
> I've used your Kirkland-Glossy-N ICC for prints on other papers as a
> "generic" Glossy curve, maybe I should just give it a shot here too..
>
> :)
>
> Cheers,
> J.F. Felinik
>
>
> --- In QuadtoneRIP@yahoogroups.com, Paul Roark <roark.paul@...> wrote:
> >
> > UT14 K is Eboni MK, which is for matte paper only. See
> > http://www.paulroark.com/BW-Info/UT14.pdf for a description of the
> inkset,
> > including the inks. For relatively neutral "black only" type of approach
> > you can use a black only curve on the C position.
> >
> > If your goal was a 100% carbon print on glossy paper that looks neutral,
> > I'm afraid there is no really good, practical solution. A lot of fixative
> > is needed to hold down the Eboni. See
> > http://www.paulroark.com/BW-Info/R1800-Glossy.pdf The results are also a
> > bit grainy looking.
> >
> > I also experimented with using gloss optimizer in a second pass to hold
> > down Eboni. It can be done, but the problems of roller marks and other
> > artifacts didn't impress me. See
> > http://www.paulroark.com/BW-Info/3MK-Glossy.pdf
> >
> > UT 14 can do both of the above using K (Eboni MK) and M (Photo black).
> >
> > Paul
> > www.PaulRoark.com
>
>  
>


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