Re: gum bichromate
Virginia Boehm (gini@ix.netcom.com)
Tue, 27 Jun 1995 04:38:51 -0700
>
>I have this nasty feeling that the process of coating paper with the
gum
>solution is *the* most sensitive variable in gum printing, meaning
that
>a small deviation from the "right" thickness causes big differences in
>print quality. Or, more to the point, coating is the easiest step to
>mess up.
>
>Do others agree? We have talked about the variables in gum printing,
>but we haven't really discussed their sensitivity. At the same time,
>sensitivity questions make all the difference when you are staring at
a
>disasterous print and want to know what to do *next*.
>
> Dan Shapiro
>
IMHO, I think its the exposure. I work in tri-color and have three
chances, at a minimum, to mess up each print. Its very frustrating to
have a perfect bi-color, then overexpose and have a muddy and awful
tri-color. :-<
Gini