Re: Gum Bichromate Printing Controls
s carl king (sanking@hubcap.clemson.edu)
Mon, 18 Mar 1996 15:30:14 -0500 (EST)
>
> *I always preshrink the paper. I always size the paper three times. I don't
> use formaldehyde since I started growing these extra ears and fingers...;-)
> I use chrome alum as a hardener with the gelatin in one solution. I always
>
Carole,
It is hard to understand why you would use chrome alum instead of
formaldehyde for *safety* reasons. My understanding is that chrome
alum is a much more dangerous chemical than formaldehyde. I use
both -- just wanted to let you know that chrome alum should be used
with great care.
>
Sandy King
Sanking@hubcap.clemson.edu