Paper for Cyanotyping

Cor Breukel (cor@ruly46.medfac.leidenuniv.nl)
Tue, 10 Sep 1996 13:15:33 +0200 (MET DST)

After my first experiments with cyanotyping, which went quite well, thanks
to the archives and your input, I have some questions about the paper:

Until now I used "blotting paper", which we use in the lab, non sized and
non buffered. I would like to start testing different commercial papers.
As I understood from the archives this paper should be non-buffered and
non-sized watercolor paper. I found some brand names but I am not sure if
these are sold in Holland.

So I would like to have suggestions about specifications of a good
Cyanotype paper (weight, rag content, others). The (test) paper I now use
can stand water, but the wet image tends to be very vunerable, this is
standard? And how long do you wash a Cyanotype (I guess until the yellow
color of the unexposed salt is removed), is it possible that the blue
fades a bit after prolonged washing?

Cor Breukel
http://ruly70.medfac.leidenuniv.nl/~cor/cor.html
"The Infrared Gallery"
http://ruly70.medfac.leidenuniv.nl/~cor/ir-gallery.html