RE: Removing Cyanotype Solution from a Stouffer Wedge

On Tue, 22 Feb 2005, Robert W. Schramm wrote:

> Try an alkali. Soak in sodium bicarbonate solution. If vthat doesn't work.
> try something stronger.

There are probably a number of cyanotype bleaches in the kitchen or
laundry-- ammonia, sodium carbonate, and /or borax. But after it bleaches
you probably need to really wash it well -- otherwise I've seen the stain
reappear. On the 3rd hand... what is the black in the Stouffer 21-step
made of? I dimly recall reading somewhere that it's NOT silver... If it's
not, the usual alkali bleach might not work (?),

Judy

>
> Bob Schramm
>
>
>
> >From: Michael Koch-Schulte <mkochsch@shaw.ca>
> >Reply-To: alt-photo-process-l@sask.usask.ca
> >To: alt-photo-process-l@sask.usask.ca
> >Subject: Removing Cyanotype Solution from a Stouffer Wedge
> >Date: Tue, 22 Feb 2005 16:29:40 -0600
> >
> >My cyanotype II solution was a wee bit too wet when I sandwiched my
> Stouffer
> >21-T wedge onto it. Now my wedge has dots of blue cyano all over one end
> of
> >it! I tried soaking it in Sistan to remove it. No dice. What else could I
> >use? Thx.
> >
>
>
Received on Wed Feb 23 02:18:54 2005