2003-08-28 by D. Hill
Paul,
Thanks again for the details on this inkset. I have a
cartridge set up for a 1280 that I am going to try as
soon as my current ink is depleted (using the piezo
driver).
As an aside, I did a quick q-tip smear test and the
tones look very impressive - exactly what I am looking
for. Not too warm, not too cold, its just right...
You should consider renaming this inkset as
"Goldilocks."
Hopefully I'll have much to post after this weekend.
thanks again,
Don
--- Paul Roark <paul.roark@...> wrote:
>
> I've been printing with the my experimental
> Eboni-based quad and have found
> that with the Piezo driver I often get some
> unevenness in smooth tones --
> like wide banding. With the Epson driver none of
> this is present. I don't
> know if it is my 1160, the old Piezo driver, or the
> inkset. My 1160 often
> didn't do very well with the Piezo driver, which is
> one reason I switched to
> the Epson driver long ago. (Since my target for the
> inkset is the Epson
> driver and vm-s, this is not an issue that concerns
> me now.)
>
> For the Epson driver, I have a curve that prints the
> "Eboni-NS" (my name)
> very well on the 1160. (The curve is
> cross-platform.)
>
> I have done enough with this for now. I'll have to
> see the fade tests
> before pursuing this approach further. (For now
> this is only for those who
> want to mix your own ink.)
>
> Paul
> http://www.PaulRoark.com
> _________________________________________
>
> -----Original Message-----
> From: Paul Roark [mailto:paul.roark@...]
> Sent: Monday, August 25, 2003 4:20 PM
> To: DigitalB&WPrint
> Subject: [Digital BW] Eboni-Neutral/Selenium,
> Piezo-compatible inkset
>
>
> 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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