Re: paper
Francisco Garcia Maceda (garciamaceda@iserve.net.mx)
Wed, 22 May 1996 00:00:49 -0600
>Hunh? Maybe I wasn't listening when they said that. But speaking of the
>archives and paper, Bob Schramm, do you remember when we had the
>discussion about Rives BFK being buffered? (Some of us were warning against
>buffered for cyanotype, which fades in alkali.) The Daniel Smith catalog
>says it is, the manufacturer (someone reported at the time) says it isn't.
>Three possibilities come to mind (of the no-doubt many):
>1. Water in Schramm-town is so acidic buffered paper works OK for cyanotype
>2. Because his formula has added acid, it counteracts the buffering of the
paper.
>3. His prints will fade, next year, next decade.
>4. The Daniel Smith catalog is wrong.
>5. Some people lead charmed lives.
>6. My students (whose cyanotypes on BFK are not satisfactory) are not among
them.
>OK, that's 6. Any others?
>Judy
A possible solution to buffered papers would be a prewash in an acidic
solution (28% acetic acid). Then a simple rinse in water would eliminate the
acid and the salts produced by the basic/acid reaction. Do you want to know
when your acetic acid is about to dye? Why not use Kodak's indicator Stop
Bath. Any draw backs? Would it work?
Francisco Garcia Maceda
garciamaceda@iserve.net.mx