From: ken watson (watsok@frii.com)
Date: 07/10/01-08:45:06 AM Z
Lacquer of the 1860's ( photography in any case ) seems to be based "gums"
from tree's dissolved by alcohol with a little oil to keep them flexible,
Lavender oil. I think gum Sandarac was popular
..-----Original Message-----
..From: Judy Seigel [mailto:jseigel@panix.com]
..Sent: Tuesday, July 10, 2001 12:57 AM
..To: alt-photo-process-l@skyway.usask.ca
..Subject: lacquer for salt prints
..
..
..
..
..On Mon, 9 Jul 2001, Joe Portale wrote:
..
..> The untoned salted paper picture is very fragile. You have raw silver
..> halides in direct contact with the environment. An option would be to
..> laquer the print to seal out the air. I do not know how this
..will effect the
..> long term image stability. Although I have seen some salt
..prints from the
..> 1860's that were laquered and they still looked pretty good. The color
..> change in a photo image is the result of changes in the
..crystalin strucure
..
..
..Joe, do you by any chance have a/the formula for that lacquer? I'm trying
..to find a satisfactory way of lacquering or varnishing gums, not for
..archival but for depth. So far experiments have been futile, but .....
..hope springs eternal.
..
..Judy
..
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