Re: Cyanotype Eraser Maybe Reducer

alkalinity bleaches out the cyanotype to nothing, which borax is (alkaline,
that is)...

we've had a hoot today combining VDB and cyanotype in class, watching the
both bleach each other away...fun stuff.
chris
----- Original Message -----
From: "Michael Koch-Schulte" <mkochsch@shaw.ca>
To: "alt-photo-process-L" <alt-photo-process-L@usask.ca>
Sent: Wednesday, February 15, 2006 8:09 PM
Subject: Cyanotype Eraser Maybe Reducer

> So I'm putting test drops of my supposed ferric oxalate (another story not
> finished yet) emulsion on the back of some classic cyanotype test strips
> to
> save on paper. After baking the strip I throw it on the bottom of my
> darkroom sink and splash some "kallitype" developer on the ferric oxalate
> spot to see what it does. I end up going up for dinner. When I come back
> the
> thing that strikes me (other than I've still failed to make a reliable
> ferric oxalate) is that the kallitype develper has erased almost all of
> the
> cyanotype from the other side. Erased or bleached, it's gone no more
> cyanotype. 50g. Borax with 40g. Rochelle Salt in 1litre of water. What's
> going on here?
>
> ~m
>
>
Received on Wed Feb 15 22:24:40 2006