RE: Removing Cyanotype Solution from a Stouffer Wedge

From: Judy Seigel ^lt;[email protected]>
Date: 02/23/05-02:18:45 AM Z
Message-id: <>

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 (?),


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

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