Digital BW, The Print

I favor buffered mat board and printing paper for prints you want to last.
The best fade test results I have are on buffered paper, although the
surface may be acidic.  

EEM is acidic and also does very well on fade tests.  However, Wilhelm
initially noted that the original EAM would yellow in 30 years.  Now he
rates EEM at about 100 years, in rather perfect storage conditions.

In an open display, a significant part of the paper's acids will escape into
the air.  In an enclosed space like a frame, however, that acid has only the
mat boards or the paper as a place to end up.  In a conservation article
I've seen reports of acidic damage to old books that are encapsulated being
up to 10 times as bad as when they were open to the air.  With a framed,
acidic print, a buffered mat board just might absorb those migrating acids,
prolonging the life of the paper.

Paul
www.PaulRoark.com 

-----Original Message-----
From: Allan Chen [mailto:kaiyen@...] 
Sent: Friday, November 12, 2004 11:34 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] matboard - buffered vs unbuffered with UT2


All,
	I'm trying to figure out whether printing with the UT2 inks needs 
buffered or unbuffered mat board.  All the references to unbuffered mat 
board is regarding color prints.  Some articles reference dye-based 
inkjet prints.  I have no clue on pigment based ones.

any suggestions?

allan
-- 
Technical Projects Specialist
Academic Computing
Stanford University
v - (650) 996-0546
f - (650) 725-4685



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