Digital BW, The Print

Paul,

I had noticed Wilhelm's update.....but, what does it mean....is he 
ignoring the acid in the paper and the burning out of the 
brightners?  Has Epson recently changed the EEM recipe?  Or is he 
only looking at the stability of the ink on the EEM coating.  And, 
exactly what does he mean by B&W printing using full color 
Ultrachrome inks?  How is he making these B&W prints?  Is he using 
the "monochrome" option in the Epson driver....note the "monocrhome" 
choice is not the same as choosing "black ink only." Or is he using 
a RIP like ImagePrint, which doesn't use Yellow in printing B&W 
using color inks....thereby, increasing print life.  If he is not 
using ImagePrint, then how much longer can we expect ImagePrint B&W 
prints to last? Does Wilhelm publish more than just numbers of years 
anwhere? Can you shed any light on these questions?

In my own very harsh Louisiana sun tests of a couple of weeks 
duration with B&W prints using a 2200 with Ultrachrome inks and 
ImagePrint 5.5 on both Epson Enhanced Matte and Epson Velvet Fine 
Art, the image appears to be very stable.  After a few days the 
brightners burn out of EEM and the paper takes on a faint yellowish 
color, which seems to become stable after a few days.  I see almost 
none of this with EVFA, which has the same coating as EEM and which 
is acid free.

Thanks!

Ron
www.harrisimages.com

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark" 
<paul.roark@v...> wrote:
> Ron,
> 
> >... the paper is not archival... The paper is not acid free and 
after
> >about 30 years, the acid should start attacking the paper.
> 
> Note that Wilhelm appears to have changed his prediction for EEM.  
He now
> gives the paper a 110 year dark storage estimated life.  See:
> 
> http://www.wilhelm-research.com/ep9600%20print%20permanence.html
> 
> Paul
> http://www.PaulRoark.com