Digital BW, The Print

Hi all,

Just an update - Finally the Selenium Piezotone Cart
has run its course through my printer.  Earlier this
week I had mixed Paul's set given below and installed
the new carts this afternoon.  After a bit of printer
coaxing, I was able to print without problem or
banding via the Piezo driver on my 1280.  In addition,
I have to admit that this is one of the cleanest and
most beautiful inksets that I have used.

Once again, thanks Paul.  This is exactly what I have
been looking for with my digital printing.

Don


--- Paul Roark <paul.roark@...> wrote:
> As I mentioned previously, I'm experimenting with
> Eboni-based inksets.  The
> purposes include to see if I can make an even more
> lightfast inkset than the
> Ultra Tones (Eboni is remarkably stable and more
> neutral than the UT grays),
> to upgrade the vm-s inkset (which currently used
> FS-N as the gray ink), and
> to make available another alternative for the old
> Piezo driver.
> 
> The interim formula I have for a Piezo-compatible
> inkset is as follows:
> 
> The cyan position ink is
> 
> 	23.9% Eboni black,
> 	4.8% MIS 7600 cyan,
> 	6.5% MIS 7600 magenta,
> 	64.8% MIS clear base.
> 
> The magenta-position ink is 23.5% cyan dark gray,
> above, remainder clear
> base.
> 
> The yellow-position ink is 45% magenta middle gray,
> above, remainder clear
> base.
> 
> This ink is for matte paper, not RC.
> 
> The Piezo driver on my 1160 prints the inks with the
> following densitometer
> readings:
> 
> 	25% patch: c=.32, m=.33, y=.32, visual=.32
> 
> 	50% patch: c=.61, m=.62, y=.61, v=.62
> 
> 	75% patch: c=.95, m=.96, y=.94, v=.95
> 
> So, the ink is quite neutral, going a bit cool in
> the shadows, and having a
> bit of a "selenium" bias to it.
> 
> I matched the old PiezoBW ink densities with the
> above mix.  Note that the
> PiezoTone sample test prints that have been sent to
> me indicate that ink is
> a bit more dense than the original PiezoBW ink.
> 
> For the ink mixers out there, this might give you an
> interesting and rather
> inexpensive alternative to the current PT selenium.
> 
> I have no idea if MIS is interested in mixing this
> ink.  I'll, of course,
> send the formula to them also.
> 
> I will be fade testing various alternatives to this
> formula -- basically
> different color pigments.  Based on past experience,
> I expect the MIS 7600
> color pigs used here to win that contest, but since
> I have not tested this
> combination before, the results could be different.
> 
> Hope this is useful.
> 
> Paul
> http://www.PaulRoark.com
> 
> 
> 


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