Hi: The easiest toner for cyanotypes is a tannic acid toner. It tones them a reddish brown.
Two baths are used, sodium carbonate in one and tannic acid in the other. The cyanotype is first bleached in the sodium carbonate and then toned in the tannic acid. The strneght of the tone is dependent upon how long it is left in eack solutions, how long it is bleached and how long it is toned. If you use a water bath you can rinse the print and bleach and tone and bleach and tone for a variety of effects. A nice consumer source of sodium carbonate is washing soda, for tannic acid - a strong tea. I recently made a cyanotype T-shirt. I wasn't sure how it would go through the wash - cyanotype get bleached with an alkali - like laundry detergent. Sure enough my shirt is bleached. I'll try toning it since I've already bleached it. Gord On Thu, 21 Nov 2002 [email protected] wrote: > Hello > I posted a message earlier today about waxing photopaper or injet photopaper, > the reason I want to wax the paper is to make cyanotypes. > Also could anyone tell me how to go about making my cyanotypes brown. > Thanks > Ben > > _______________________________________________ > Post to the list as PLAIN TEXT only - no HTML > Pinhole-Discussion mailing list > Pinhole-Discussion@p at ??????? > unsubscribe or change your account at > http://www.???????/discussion/ > --------------------------------------------------------- Gordon J. Holtslander Dept. of Biology [email protected] 112 Science Place http://duke.usask.ca/~holtsg University of Saskatchewan Tel (306) 966-4433 Saskatoon, Saskatchewan Fax (306) 966-4461 Canada S7N 5E2 ---------------------------------------------------------
