Digital BW, The Print

Robert,

Welcome back. Sounds like you escaped from the company intranet by 
taking a trip!

Thanks for all the information in the e-mails, this post and the 
three that follow.

There is one item regarding OBA's which concerns me and that is the 
question of whether they simply stop fluorescing or if they break 
down to produce chemicals that effect paper permanence.

Martin


--- In DigitalBlackandWhiteThePrint@y..., Robert Rex <chameleon@i...> 
wrote:
> At 02:40 AM 9/6/01 -0000, you wrote:
> {snip}
> 
> > Okay, Robert, what is the cold extraction pH of Museo? ;-)
> > 
> > Also, as an aside, while the information you will find at this 
link 
> > clearly spells out what is needed for optimum paper permanence, 
we 
> > still don't know how these properties effect the image permanence 
> > using different inks or media.
> > 
> > Martin Wesley
> 
> I do have these specs for both cold and hot pH extracts.  but i am
> travelling and don't have the specs with me.  I will ask one of our 
project
> chemists to email me the specs and will post here forthwith.
> sorry for the delay, and thanks for posting this on my behalf, 
martin.
> sincerely
> robert rex
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