Re: Staining with Glyoxal

Sandy wrote:
>I would be interested to know which papers stained after hardening
with Glyoxal, and how long after hardening did it take for the stain
to appear?<

It took some months (in a drawer in the darkroom) until I noticed it. It
made me angry, as my 100% rag Fabriano Artistico (sic!) papers are quite
expensive, but I didn't throw them away. So again some months later I
noticed an even stronger yellow/orange tone. I didn't remember how careful
I really washed, maybe that's the reason, although I am usually quite
careful...
I think I also remember someone on the alt.photo.list mentioning the pH as
something important? I am no longer on that list but the archives may tell
something... Judy Seigel might know more.

Klaus
Received on Thu Oct 19 05:16:09 2000