Digital BW, The Print

Bill Storm" <stormband1@...> wrote:

 
> ... ANSI IT9-5 standards committee ...
 
> Based on some of the findings the committee identified it 
> would be fair to believe any laminated or multi-layered 
> media is likely to have issues over time. ...

Even the matte papers have an inkjet receptor coating on them.  Do 
you think this type of coating would also be at risk?

I've assumed that at least some would want to avoid even these 
coatings.  So, Arches Hot Press water color paper (un-coated) has 
usually been one of the papers I test and profile.  For display sizes 
the new 1.5 pl printers can do a fairly smooth print on these.  If 
there were a 24" 1.5 pl printer, I might actually be tempted to 
replace my old 7500 with it.

On a related issue, Wilhelm does give some information on paper 
longevity in the "Album/Dark Storage" column of his reports.  See, 
for example column 4 in http://www.wilhelm-
research.com/epson/11880.html   At the very least when there is too 
much yellowing, that affects the end point of the test.  

I've speculated that one reason Wilhelm does not get further into age 
testing is that, according to some conservation types I've 
communicated with, doing such tests is much more difficult or 
uncertain than fade testing.

What procedures did your ANSI IT9-5 standards committee use for 
accelerated age testing?

Paul
www.PaulRoark.com