Digital BW, The Print

Paul,

Only just seem this post of yours, but thought I should point out that this 
work was published five years ago, which means it was probably done six or 
seven years ago, and it used an Epson 1270 and an Epson 2000P. Both printers 
and their inks are several generations out-of-date now. However, there is a 
lot of useful general information in the paper, even if the results are 
possibly out-of-date.

Bob Frost.

----- Original Message ----- 
From: "Paul Roark" <paul.roark@...>

I have a little trouble understanding all of Vogt's conclusions and why her
results seem at odds with others.  For example is one looks at p. 50 of
http://www.imagepermanenceinstitute.org/sub_pages/inkjet_stability_72dpi.pdf
it looks like cyan is about the most unstable pigment.  However, just above
the table the article says that while pigments were more stable than dyes,
when fading occurred "the pigments showed the same fading behavior as the
dyes."  On page 37, relating to dyes, the section on cyan starts out by
saying that the cyan was the most stable in visible light and behind glass.