U of S | Mailing List Archive | alt-photo-process-l | RE: cyanotype toning and staining

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.


-----Original Message-----
From: Matti Koskinen [mailto:mjkoskin@koti.soon.fi] 
Sent: Wednesday, June 06, 2007 3:52 PM
To: alt-photo-process-l@usask.ca
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 
darkroom there.

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.