Re: gold toning (was heat drying (was sol A & B

Luis Nadeau (nadeaul@nbnet.nb.ca)
Tue, 30 Jun 1998 16:06:55 -0300

At 12:47 PM 98/06/30, John Rudiak wrote:
>Sam Wang wrote:
>>
>> >On Sun, 28 Jun 1998, Darlington Media Group wrote:
>> >> As for permanency, I have a number of Argyrotype prints that have faded
>> >> quite badly along the edges despite taking the utmost care during
>> >> processing and clearing! However, prints which have been toned with gold
>> >> are as good as new
>> >
>> >But wouldn't gold-toning vandyke brown make it equally archival?
>> >
>> >Judy
>>
>> Good question! Perhaps it's not how the silver is formed, but whether it's
>> covered by gold that determines its archival qualities.
>>
>My understanding of the Argyrotype is that it is still a silver based
>print, like kallitype or Van Dyke, but the manner in with the silver
>image is formed eliminates the production of relatively insoluble iron

"eliminates" or "creates"?

Luis Nadeau
Fredericton, NB, Canada

>compounds which are responsible for the reported short life of the
>print.
>
>Plating the silver with gold or platinum will certainly increase
>longevity, but will of course change print color.
>
>
>> Has anyone tested gold toning formulas to determine the differences between
>> them? D-Max, colors, etc?
>>
>> Also, can someone please give me the formula for Nelson's Gold Toner? I
>> made up a batch years ago which is just depleted, and can't find the
>> formula it was based. Thanks.
>
>Nelson's Gold Toner is the same as the Kodak toner formula T-21,
>according to the Photo Lab Index I'm looking at. If you can't find the
>recipe, contact me off-line, will be glad to send it.
>
>John
>
> >
>
>
>--
>Alchemy Printmaking & Photography
>PO Box 633 Ranchos de Taos, NM 87557
>http://www.quetzl.com/Alchemy/index.html