Digital BW, The Print

Paul,

I really appreciate your work on these ink tests.  But since I have 
been distracted for a month or so and have only been able to blast 
quickly through the high output of this list, I am a bit behind...

Let me see...are you concluding that the new MIS high-load matte black 
was just about as good as any black on the market as far as permanence 
and d-max are concerned?

If that is so, do you have any comments about the metameristic 
qualities of the new ink?

and, finally, did I hear you correctly that this ink could be 
substituted  for the current  black on the VM set?

thanks again for all the great work....,

Bill

On Thursday, February 6, 2003, at 04:06 PM, Paul Roark wrote:

> I just completed a 300 hour test of a number of inks.  I'll just touch 
> on
> the highlights here.
>
> The good news is that the PiezoTone Museum K did extremely well.  At 
> the
> 100% patch, there was no measurable (with the X-Rite Digital 
> Swatchbook's
> 0.01 sensitivity) visual density decrease.  Of course, the MIS FS/VM 
> black
> only showed a 0.01 unit drop.  However, more telling is the 
> performance at
> the 50% patch.  The Museum K didn't show any visual density loss there
> either, whereas the FS-K dropped 0.08 units.
>
> The Museum K showed a 0.02 warming at 50%, which is typical of most of 
> the
> inks I tested.  I consider this minor and probably the norm for carbon,
> which does warm a bit.  The FS K warmed twice as much.
>
> The even better news is that the new MIS high-load matte black I tested
> performed just as well as Museum K.  It has the exact same 100% patch
> density (1.68 on EEM with black only printing).  It could well be the 
> same
> ink.  On the other hand, it printed a bit lighter at the 50% patch.  
> So, the
> inks might be different, but this difference could also be just lot 
> number
> differences.  I consider the inks to be essentially identical.
>
> Other inks that showed no density loss at the 100% spot were the Epson 
> 7500
> Archival black and the Epson UC Light black.
>
> The champ is still the Epson UC matte black.  As in a previous test, it
> actually increased in density 0.02 units at the 100% patch after 300 
> hours.
>
> Other inks that showed no decrease in density at the 50% patch were the
> Epson Photo black, and the MIS 7600 (UC clone) Photo black.
>
> Interestingly, the new inks that showed no decrease at the 100% patch
> generally showed a slight decrease at the 50% patch, and those that 
> showed
> no decrease at the 50% patch generally showed a 0.01 unit decrease at 
> the
> 100% patch.  The only exceptions were the Museum K and MIS beta matte 
> black,
> which showed no decrease at either spot.
>
> The Epson 7500 color pigments at the 50% patch showed a 0.01 unit 
> decrease
> in density.
>
> Epson 7500 Archival black, while it lost no density at the 100% patch 
> on
> EEM, lost 0.01 units of density on Premium Luster.  On the other hand, 
> the
> dmax was still 2.18 v. 1.53 for the EEM. (The 7500 lays down a bit 
> more ink
> than most desktop printers.)  At the 50% patch the Premium Luster with 
> 7500
> color pigs lost 0.03 units (v. 0.01 with EEM).
>
> The new inks are so good that the 0.01 variances in performance may 
> not mean
> much.  Also, simple light box testing may not show the beneficial 
> effects of
> the Epson encapsulation due to the drying effect of the bright light.
> Additionally, fade rates may not be linear with time, so what does 
> best at
> first may not be the ultimate winner.  However, all these new inks are
> really good.  Your mileage may vary.
>
> Paul
> http://www.PaulRoark.com
>
>
>
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------------------------------
bill agee studio
capistrano beach / laguna beach, ca

www.redsilver.com