Question: Are you using distilled water to mix solutions A and B? Have you tested your tap water for pH? Are you washing in tap water?
Bob Schramm
Check out my web page at:
http://www.SchrammStudio.com
also look at:
http://www.wlsc.wvnet.edu/www/pubrel/photo.html
>From: Tom Ferguson
>Reply-To: alt-photo-process-l@sask.usask.ca
>To: alt-photo-process-l@sask.usask.ca
>Subject: Cyanotype total failure
>Date: Fri, 27 Jul 2001 19:08:17 +0000
>
>I'm just curious if anyone else has seen this.
>
>My standard cyanotype chemicals (A and B), which worked just fine last week,
>went "bad". They gave NO IMAGE at all! The coating looked fine, I even got a
>printout image before developing/washing. The printout image was too yellow
>to look normal. Once the paper hit the water, the entire image disappeared!
>Total white paper. I finally threw out all my chemistry, washed everything
>twice, remixed (from the same supply of dry chemicals), printed onto the
>same batch of paper, and now everything is fine??????
>
>Normal cyanotype, ferric ammonium citrate and potassium ferricyanide.
>
>Happily recovered (as I'm suppose to ship quite a few prints next week), but
>confused.
>
>--
>Tom Ferguson
>http://www.ferguson-photo-design.com
>