Judy Seigel (jseigel@panix.com)
Tue, 23 Nov 1999 13:25:35 -0500 (EST)
On Tue, 23 Nov 1999, Keith Gerling wrote:
> When attempting to coat sized paper with Ware cyanotype, I am puzzled that
> the solution seems to be reacting almost immediately upon hitting the paper,
> turning green and essentially becoming fogged.
>
> I'm using Rives BFK, sized with Knox gelatin and hardened with Glyoxal. I
> have no problems with non-sized BFK, but as I am intending to overprint with
> gum, the paper needs to be sized. Any ideas as to what's going on?
>
Keith, "Regular" cyanotype doesn't much like gelatin, and I assume Ware
cyanotype doesn't either... though it could well be the hardening from the
glyoxal. In any event, I suggest you do as Sarah Van Keuren mentioned in
Post-Factory #3 -- she shrinks the paper first, before cyanotyping, then
puts on the cyanotype, AFTER which she gelatin sizes for gum.
Judy
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| Judy Seigel, Editor >
| World Journal of Post-Factory Photography > "HOW-TO and WHY"
| info@post-factory.org >
| <http://rmp.opusis.com/postfactory/postfactory.html>
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