Charles, thanks for posting this most informative video. Tod is truly a master. I very much agree with you in that following correct procedure is key to successful carbon printing.
If the UltraStable process instructions say to use plain polyester sheets washed with Comet soap, what is the pull towards using this dichromated-albumen coating?
Albumen coating the temporary support is an old technique used to improve adhesion that Tod favors but which I have never found necessary. It does work well and it is mentioned in the video of Tod making a print . I've received questions about it but I've been reluctant to describe it because of my (by now well-known) dislike of dichromate. With all the current discussions of diazo-type sensitizers that can be used to replace dichromate, perhaps this is another area worthy of exploration.
Tod is an excellent teacher, I work excatement like him. Tod told me that it is. But we must understand that I live in Belgium and I do not know have the same ingredients as Tod and Charles. I had to adapt my technique (formula, gelatin, albumin and dichromate, negative) based on my personal process but otherwise the principle of my technique is as excatement Tod explained to me, but I adapted to suit my work. Here is a Simple Transfer Carbon as process of Tod and Charles but with my process adapted.
Most carbon printers know (or at least should know) that dichromate-sensitized tissues are quite sensitive to relative humidity (or more properly, the moisture content of the tissues), which affects speed and contrast. This is one of the factors often cited against dichromate-sensitized tissues for color printing, the difficulty in controlling speed and contrast from tissue-to-tissue and print-to-print.
Are the UltraStable tissues as sensitive to differences in ambient humidity as dichromate-sensitized tissues?
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Originally Posted by holmburgers
