Digital BW, The Print

shashinka@... wrote:

>
> In a message dated 11/11/01 12:26:26 AM, steadmanuhlich@... writes:
>
> <snip>
>
> >As for acid...everyone has a different opinion...mine is that the pens are
> accurate enough to tell when the paper is acid...which is what the pens tell
> us about those two papers.  This was discussed in detail on the PiezoBW list
> in about June or July as I recall.

Well, it might have been discussed on another list, that does not make anything fact.  I for one do not think
you can trust those pens by themselves.  Archivalness is about more than just acid free.  If the paper base is
wood pulp, and has been buffered, it might read as acid free at the moment, but in fact, is not archival or
acid free.

The latest studies show that the buffering agents react very poorly with inkjet inks and should be avoided if
one is looking for long term paper/print stability.  Just as one should avoid optical brighteners.

In the FWIW department:  Read the pdf file: 'Stability Issues and Test Methods for Ink Jet Materials, Barbara
Vogt, Department of Image Engineering, University of Applied Science, Cologne'.  Be aware that it is a 62 page
thesis on the below site:

http://www.geocities.com/mortenryhl/index.html

Harvey Ferdschneider
partner, SKID Photography, NYC






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