From: FB (aikus@freemail.hu)
Date: 10/11/01-02:43:44 AM Z
Date sent: Thu, 11 Oct 2001 07:58:19 +0200
From: "alnovo@inwind.it" <alnovo@inwind.it>
To: alt-photo-process-l@skyway.usask.ca
> I remember reading of a formula for the production of a
> direct positive cyanotype, but I am not able to find the
> source, neither I have a note on it.
> Has any of you got that one?
There is a version from Pizzighelli:
Sensitizer:
20 cm3 gummi arabicum solution 1:5
8 cm3 ferri ammonium citrat solution 1:2
5 cm3 ferrichlorid solution 1:2
"Developer":
1 part of water
1 part of potassium ferro cyanid
And some description about the process, if you need I try to
translate.
I never used so I have not experience with this process.
Bálint Flesch
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