Re: APIS, hydroquinone hardening

Yes Katharine, that is my memory and understanding.

Jack

> From: Katharine Thayer <kthayer@pacifier.com>
> Reply-To: alt-photo-process-l@skyway.usask.ca
> Date: Wed, 13 Jul 2005 15:39:45 +0000
> To: alt-photo-process-l@skyway.usask.ca
> 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