Digital BW, The Print

Paul,

I've gathered all my ingredients, syringes etc and am ready to mix up the C6b. (By the way I found a great source for 35 ml syringes... the local ranch supply store here in Billings, Montana. They had them for $1.19, and are used for cattle! I already have the blunt needles.)

I'll be using the C6b in my color position carts and I want my nozzle checks to be visible. So I'd like to add a ml or two of Eboni black to the 500 ml of C6b. Should I alter the recipe, say a mil or two less of distilled water, or a mil or two less of something else? Or should I simply leave the recipe the way it is and add the Eboni "on top" of my mix?

Thanks,

Paul

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Paul Roark <roark.paul@...> wrote:
>
> <paulmwhiting@...> wrote:
> 
> > 
> >
> >
> > ... I want to mix up Paul Roark's C6c base, which calls for glycerol. My
> > pharmacy only stocks glycerine... is that the same thing?
> >
> Yes, glycerine = glycerol (aka glycerin). See
> http://en.wikipedia.org/wiki/Glycerol
> 
> Note also footnote 8 of http://www.paulroark.com/BW-Info/Ink-Mixing.pdf .
>  I use 99.7% pure.  I'm not sure what purity is needed.  Someone once
> commented that Walmart had glycerin.  I went into one and looked at what
> they had.  It appeared to me that it was simply a cosmetic that was mostly
> glycerin, but it had other things in it to make it smell nice, etc.  I
> suppose nice smelling ink is OK, but I don't know what affect other
> chemicals might have.  So, I'd stay with as high a purity as is practically
> available.  Overall the ink cost is going to be so low as to not be much of
> a factor in printing.
> 
> Also,  unless you are going to print on Arches watercolor paper, there is
> no need to go to the C6c version with the additional surfactant in it.
> 
> Good luck with the mixing.
> 
> Paul
> www.PaulRoark.com
> 
> I
> 
> >
> >
> 
> 
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>