RE: cyanotype toning and staining
Which paper(s) have you used in your toning trials? IME, some papers are
more prone to stain with tannic acid + tea always stain much more than
How heavy is the stain? Just a slight warming or much worse? Is the
stain in the image area only or does it also stain the non-image area?
Try to rinse/clear the paper thoroughly before toning: wash as usual,
then clear in 2% citric acid, then rinse again and then bleach/tone...
Try different papers to see if the stain is more (or less) pronounced
depending on paper...
I'm sure there will be other useful suggestions other than mine.
From: Matti Koskinen [mailto:firstname.lastname@example.org]
Sent: Wednesday, June 06, 2007 3:52 PM
Subject: cyanotype toning and staining
thanks to all for the information a while ago concerning one coat gums.
Haven't had time yet to try them, but definitely will. I've been busy
moving a to new house, and good thing is that I can get a decent
On my voyage to alt-proc, I've learned to coat cyantypes, bought Dan B's
inkjet compandion, got an uv-light source, made from two u-shaped
fluorescent lamps and things are going on now with routine. So I tried
toning the cyanotype prints first with tea and after that tannic acid. I
bleached both with ammonia and sodium carbonate. I got nice brownish
tone, but the highlights stained badly, lowering the overall contrast
quite heavily. Is this normal or is there a way to avoid staining?
There's nothing wrong with the prussian blue, but wanted to see how the
prints look with different colours.