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Digital BW, The Print

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RE: [Digital BW] Buffered or Unbuffered Matt Board

2006-01-07 by Paul Roark

> 
> Just a note, take a look at the pH of some of the fine art type
> papers. Many of the Hanhemuhle papers are listed as being slightly
> basic.

All the good matte inkjet papers are buffered.  

> And if the inks the Epson uses really do contain ammonia, then
> they are also probably slightly basic.

Ammonia is a gas, so I doubt it's in the paper.  I've used ammonia to
neutralize silver prints that became acidic due to atmospheric pollutants.
A cap of household ammonia liquid (water with ammonia gas dissolved in it)
in a bag with an acidic paper gets the acids out in just a matter of minutes
-- even EEM.  Of course, if it's EEM or a similar paper with an acid
reservoir like lignin in it, the paper once again becomes acidic.  The
silver prints I've de-acidified this way seem to stay neutral after the
treatment -- at least until the airborne acids get to them again.

Paul
www.PaulRoark.com

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