Re: Chlorobromide & Dassonville Charcoal black paper

• To: alt-photo-process-l@sask.usask.ca
• Subject: Re: Chlorobromide & Dassonville Charcoal black paper
• From: Mac Legrandi <juicebox@my-Deja.com>
• Date: Mon, 27 Mar 2000 10:29:10 -0800
• Comments: "alt-photo-process mailing list"
• Organization: My Deja Email (http://www.my-deja.com:80)
• Reply-to: alt-photo-process-l@sask.usask.ca

Hello!

Very interesting. I was under the impression the type of emulsion used in chlorobromide & Dassonville Charcoal black paper were far removed from salted paper.

Other than a higher silver nitrate solution, how can I achieve the so-called "High Silver Content" described by Burgger and these early papers?

What is a good Silver Nitrate Solution? 10%?

Thanks Mac


>There are dozens of classic silver formulas available - all the 
>"Historical" type photo books and most general alt photo books have 
>formulas for "salted paper" which are just silver emulsions. I personally 
>use a classic formula of ammonium chloride and gelatin to soak the paper, 
>then when dry, apply silver nitrate. It's that easy, and the results can be 
>great. In fact, if you use a gold solution (fancy "toners" aren't 
>necessary) after a short wash and before fixing, the image is quite permanent.
>
>
>Sil Horwitz, FPSA
>Technical Editor, PSA Journal
>teched@psa-photo.org
>silh@earthlink.net
>Visit  http://www.psa-photo.org/
>Personal page: http://home.earthlink.net/~silh/ 
>


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