Digital BW, The Print

Paul:
I'm getting a d-max of about 2.4 on the Ilford Gold Sylk, with my
Z3100. I'll check that again tomorrow when back in the studio.

Sounds like your HP ink dilutions are working well! Have you done any
research on exactly how HP is treating their ink to get the neutral tone? 

John Nollendorfs
--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "pr_roark"
<pr_roark@...> wrote:
>
> "Randy Rancier" <randy_rancier2004@> wrote:
> 
> > ... using the UT14 inkset, ...
> > I was attempting to get the maximum black possible on a 
> > semi-glossy paper (ILFORD Galerie Gold Fibre Silk) using 
> > the PK inks, ...
> > 
> > What surprised me ... was that I was getting a higher dmax 
> > ... with the DILUTE Cool and Warm PK inks ...
> > ... the Diluted Warm PK was actually higher (a 
> > little over 2.33 at 95% inkload) ...
> 
> That's an interesting result.  
> 
> With my dilute HP PK experiments I found I was able to hit a dmax of 
> 2.4 on Crane Silver Rag at a 100% QTR ink limit with a 50% dilution 
> of the HP PK.  (I did not have a 100% HP PK test strip to see what it 
> would do full strength.)  I attributed the result to the huge load 
> the Crane paper could hold.  On most glossy papers the dilute ink did 
> not do as well, coming in closer to 1.9.  I did not test the Ilford 
> paper.
> 
> The MIS K4 PK is a lighter load (more dilute) than the older 7600 PK, 
> I'm told, and it does work better on the newer printers, but on the 
> older ones I think the more concentrated 7600 PK gives a better 
> dmax.  So, it may be that, in general, a characteristic of the latest 
> printers favors lighter load inks.
> 
> It would be interesting to see scans of the ink separation pages of a 
> couple glossy papers if it's easy for you to post them somewhere.
> 
> Thanks for letting us know of your findings.
> 
> Paul
> www.PaulRoark.com
>