Digital BW, The Print

----- Original Message ----- 
From: "Paul Roark" <paul.roark@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Monday, September 08, 2003 2:55 AM
Subject: RE: [Digital BW] 1280 UT Dual-Toner inkset


> Daniel,
>
> >...
> >... if all the inks can be mixed from existing inks?
>
> They cannot be easily mixed from UT inks.  I've had to go to
custom
> dilutions that require the MIS UT/7600 clear base.  Have you
been able to
> get that "clear" (actually tea colored -- to be discrete) base
from MIS?
>
> >I did try a diluted Eboni in the LK position again today and
the whole
> >curve cooled down significantly, but the tone of the curve was
still
> >slightly uneven. In the 2100 the LK seems to have a much
bigger impact
> >on the overall tone of the curve than the black position.
>
> Alex and I are both doing experiments to see if there is any
base that will
> dilute Eboni reliably.  It appears to precipitate in reaction
to unknown
> factors when diluted.
>
> The existing clear base is not RC compatible -- of course,
neither is Eboni.
> However, getting an appropriate base for these new inksets is
tricky.  It's
> one key to MIS's UT and UC clone inksets, and I'm not sure they
are going to
> release it publicly.
>
> Paul
> http://www.PaulRoark.com

Paul,

The base of all the inks in the Ultratone set must be equal or am
I wrong in that assumption ? I thought that I could make the
Eboni more fluid by mixing in some of the next grey but if that
doesn't work I better reload that channel with photoblack.

It would be nice to get that MIS base if it was only to get the
Eboni at a level that it can be used in any printer.
To keep a higher load of pigment afloat the base has to be thick
in rest. It has to be fluid in motion if it ever has to get
through the nozzles.
Thixotropic behaviour. Glycerine has been mentioned as a
component in inkjet inks, it has that behaviour. But that's just
one of the components.

Ernst