Digital BW, The Print

Paul,
Thank you for your reply. I am amazed by the amount of informations
you carry.
BTW, I tought you were in love with Moab's papers, when speaking of
ceap and good stuff. 
Did that eventually changed?

Ciao,
  Daniela




--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Paul Roark"
<paul.roark@...> wrote:
>
> 
> >do you know if Costco's Kirkland paper has the same problems?
> 
> My Abbey Publications acid test pen (from (512) 929-3992) indicates the
> Kirkland glossy paper base is much more neutral.  It probably is
buffered.  
> 
> Whether it has enough buffering in it for the long haul is harder to
tell.
> The ratio of lignin to buffering is the issue.  Some standards call
for less
> than 1% lignin and more than 2% calcium carbonate.  In cheap paper
with lots
> of lignin, the acids they put out will eventually overwhelm the
buffering.
> Also, lignin itself is photo sensitive, turning brown in the sun. 
Buffered
> newsprint still turns brown. 
> 
> The Epson Premium glossy, etc. papers are well buffered and archival.
> 
> The new glossy papers -- Crane Silver Rag, etc. -- appear to be well
> buffered and acid free.
> 
> As an old fan of Kodak and still faithful user of its discontinued
Technical
> Pan film, it pains me to say this, but I no longer believe anything they
> say.  I tested one of their vaunted swellable emulsion dye papers
and it was
> the worst in the test.  They consider a "year" of display to be half the
> amount of light Wilhelm and others use.  In general, my experience
is that
> failing companies engage in this sort of thing in an effort to
survive, and
> that appears to be the mode Kodak is in.
> 
> The cheapest archival papers (unless Kirkland is indeed archival)
are the
> low-priced, highly buffered matte papers like Premier Art Premium Matte.
> See http://www.photowarehouse.biz/premier.html 
> 
> Paul
> www.PaulRoark.com
>