> The only test for adequate hardening that I find relevant would be if
> there's pigment stain or not -- because that's the reason for hardening
> our gelatin (whatever it may be in Ryuji's use) in the first place. I know
> a printer who makes gorgeous gum prints without hardening her gelatin
> size, and Katharine's point that the dichromate probably tans or hardens
> the gelatin may apply -- although I'd guess that it only hardens where
> there's been hardening by exposure, so the paper whites -- which is where
> stain happens, or anyway where it's an issue -- wouldn't be hardened that
> way.
>
That was my problem and why I began hardening. Btw I always feel that a
chemical taste indicates exposure to something.....If I have a taste in my
mouth I always get out & get fresh air straight away.
Kate
Received on Tue Mar 30 16:52:53 2004
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