Digital BW, The Print

Here are some general targets when simple dilutions are used (which is no
longer the case most of the time).  

I found the MIS LK to be about 30% MIS PK.  

I do not dilute PK to make light inks because measuring errors are too
likely.  Lighter inks are better to start from for consistency with small
volumes or less than very good scales.  I often have used MIS UT-C as a
starting point, and LK is used a lot. 

UT-FS-M is about 18% UT-C.  UT-FS-Y is about 8.3% UT-C.  

Before the latest UT-FSN was mixed with the new blue, the old UT-FSN used
the same hue for all the inks (not true with the latest version).  M was 20%
C, and Y was 10% C.  Note that the different pigments required different
dilutions to make the same densities.

Paul
www.PaulRoark.com 




> -----Original Message-----
> From: DigitalBlackandWhiteThePrint@yahoogroups.com
> [mailto:DigitalBlackandWhiteThePrint@yahoogroups.com] On Behalf Of
> rbehr2001
> Sent: Wednesday, July 20, 2005 6:26 PM
> To: DigitalBlackandWhiteThePrint@yahoogroups.com
> Subject: Re: [Digital BW] Roark's Lab - Mixing Your Own
> 
> You are right, the instructions do not specifically say Photo Black.
> The site says "Do not use Eboni as the Black Ink for blending.
> Original Archival Black, 7600 Light Black, or 7600 Photo Black are
> the acceptable black inks for blending." But I can't believe the
> differece between Photo black and 7600 Photo Black would change the
> mix from 60% to 5% Grayscale. There's something else I'm missing or
> the information is just wrong.
> 
> Bob
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Nick H. Nugent"
> <nghin@p...> wrote:
> > Elsewhere in the MIS website it is stated that the black ink should
> > not be photo black, but some sort of much thicker black ink. The
> > formula is based upon the usage of this black ink.
> >
> > --nick
> >
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "rbehr2001"
> > <rsbehr@h...> wrote:
> > > <paul.roark@v...> wrote:
> > > > Note that while the graph shape is about right, the mixing
> > > instructions MIS has put on their "Roark's Lab" page are not from
> me.
> > > >
> > > Are you saying that a 2% solution of Photo Black should give 60%
> black?
> > > Because my results were not even close.
> > >
> > > Thanks,
> > >
> > > Bob
> 
> 
> 
> 
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