[alt-photo] Re: Speedy Cyanotype Question

[Loris Medici]

Most conventional -> A: 20%, B: 8% (I mean that's what has been quoted in
several books...)
Most pigment yield -> A: 25%, B: 12% (Slower!)

You don't need AD. IIRC, Richard Sullivan's formula also had oxalic acid as
one of the ingredients. IME, you don't need any other "alien" compounds,
except the preservative for soln. A -> few drops of 37% (strong) formalin or
100% thymol soln. (in alcohol).

-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org On Behalf Of
francis schanberger
Sent: Friday, April 09, 2010 8:41 AM
To: The alternative photographic processes mailing list
Subject: [alt-photo] Speedy Cyanotype Question

...
I've been asked to contribute a technique to decorating Tom's Shoes (a brand
made by a company that donates shoes to children in need). In all
probability I am going to have to squeeze about 3 pairs of shoes coated with
cyanotype at a time into a homemade exposure unit. Since the light resists
will vary but tend to be more of a photogram generating type, I don't think
grain will be an issue. I think getting the participants' shoes through the
exposure unit will be my priority.
...