Re: archivalness of gum
From: Yves Gauvreau <gauvreau-yves@cgocable.ca> Subject: Re: archivalness of gum Date: Fri, 21 Dec 2007 12:12:58 -0500 > Out of curiosity, wouldn't it be appropriate to also > consider the gelatin and/or whatever else is used with the > pigment(s) in the archivalness equation? At least in the case of silver image, metallic silver in gelatin is significantly more stable than binderless silver. One can interpret this to mean that, if both are untoned, silver gelatin image is more stable than binderless silver processees, due to the use of gelatin in the former. However, the image protection from sulfiding toning is much more powerful than gelatin alone. -- Ryuji Suzuki "Patriotism is the last refuge to which a scoundrel clings." (Bob Dylan, Sweetheart Like You, 1983)
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