Archived posting to the Leica Users Group, 2012/09/03
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Mark Rabiner <mark at rabinergroup.com> wrote: > ... > It was brought to my attention that there never was a darkroom paper that > was 100% rag. ... This is getting a bit OT, and I apologize for that. The situation with the wet darkroom paper is worse than it not being rag. Good alpha cellulose, which most good wet darkroom paper was, is very nearly as good as rag. The real problem was that it could not be buffered due to the acidic chemicals used. As such, our silver prints are being attacked by air-borne acids. I have seen in my own metal cabinet yellowing after 20 years of storage. The good inkjet cellulose (rag or alpha), not having to withstand the development chemicals, are buffered and should resist the acids much better. Paul www.PaulRoark.com