Digital BW, The Print

Paul,

From the image file I definitely prefer the Neutral FS tone over the 
Piezo ink color.

Practically the mixing sound like it would be tough to reproduce 
accurately in small quantities. 1 to 1 or 1 to 5 is pretty easy in 
small amounts but 28 to 72 or 153 to 847 is going to require some 
good graduated cylinders and larger amounts.

Have you tried mixing by weight? This might be more accurate and 
reproducible. A triple beam balance or better a digital scale with a 
1 in 1000 or 1 in 10,000 resolution would be the way to go.

Given the cost of the inks a good scale would be well worth the 
investment of a couple of hundred dollars for say an Aculab 
electronic scale.

Martin Wesley



--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> I have slightly adjusted the formula for the neutral FS inks that I
> published here on 10/30.
> 
> The FS-N3 inkset mix is as follows:
> 
> 1.      Mix a dark blue toner: 1 part cyan pigs to 1 part magenta 
pigs.
> 
> 2.      Mix a base cyan-position ink:
> 
> 	(a)  Mix 28% VM or Piezo black, the remainder MIS clear base.
> 		(This might be a hair too light.)
> 
> 	(b)  Mix the toner and 28% K, above, as follows: 1 part toner 
to 5 parts
> 28% K.  This is the cyan-position ink for the cartridge and for 
further
> mixing, below.
> 
> 3.      Magenta position: 15.3% cyan-position ink, above, the 
remainder MIS
> clear base.
> 
> 4.      Yellow position:  1 part magenta-position ink, above, to 1 
part
> clear base.
> 
> This is just the latest mix I've done.  It must be considered a 
draft
> formula that may need some fine tuning.
> 
> Note that mixing with syringes (like I do) is not very accurate.  
As such,
> there will be variations in the results.
> 
> (MIS is not involved in this.  Whether they would pre-mix this is 
probably a
> question of whether there are enough people who want it.)
> 
> Frankly, I still think that the MIS VM approach is better, but for 
those who
> love the Piezo driver and want neutral ink, here is a formula that 
works
> fairly well.
> 
> To see what the images will look like compared to a standard Piezo 
print,
> the first FS-N1 print is still representative.  That neutral-tone 
image was
> printed with the Piezo driver and the FS-N1 inkset described 
10/30.  The
> comparison Piezo image is standard Piezo ink, with the Piezo 
driver.  Both
> are on EAM.  The comparison image is "FS-N1-Pzo" in the Message 
Related
> Files section of this forum.  See,
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
> and go to the "Message Related Files" folder.
> 
> Paul
> http://www.PaulRoark.com