Re: Tanning theory of dichromated colloids (was gelatin

Katharine Thayer wrote:
>
> Ryuji Suzuki wrote:
> >
> >
> > Take that idea for a moment and comment on how similar gelatin and
> > leather are, and why discussion on one is useful for the other, and to
> > what extent. (in 250 words)
> >
>
> Not very much. At all. Not very useful. At all.
>

While we're at it, perhaps you'd like to comment, in as many words as
you like, on how similar gelatin and gum are and why I should take the
hardening of gelatin with chrome alum as a model for the photoprocess of
dichromated gum. ;-) I don't think gum and gelatin are are much closer
than gum and leather, and they are sure way farther apart than gelatin
and leather.
kt
Received on Fri May 7 10:03:50 2004