Re: APIS, hydroquinone hardening

From: Katharine Thayer ^lt;[email protected]>
Date: 07/13/05-09:39:45 AM Z
Message-id: <42D535BE.6987@pacifier.com>

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 Wed Jul 13 16:35:24 2005

This archive was generated by hypermail 2.1.8 : 08/25/05-05:31:51 PM Z CST