Re: APIS, hydroquinone hardening

From: Jack Brubaker ^lt;[email protected]>
Date: 07/14/05-09:06:26 AM Z
Message-id: <>

Yes Katharine, that is my memory and understanding.


> From: Katharine Thayer <>
> Reply-To:
> Date: Wed, 13 Jul 2005 15:39:45 +0000
> To:
> Subject: Re: APIS, hydroquinone hardening
> Jack Brubaker wrote:
>> He has made prints by a very clever "wet carbon" process where he uses this
>> reaction to selectively solidify carbon tissue (that contains hydroquinone)
>> still damp from coating by placing it in contact with a paper final paper
>> support that has an exposed dichromate image (dichromate only). The
>> unexposed and therefore unconverted dichromate bleeds into the carbon tissue
>> and interacts with the hydroquinone to harden the gelatin.
> Interesting, so the "negative" he uses to print the image must be a
> positive, right? (Sorry, just trying to make sure I understand this)
> Katharine
Received on Thu Jul 14 09:05:18 2005

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