Re: Sodium Bisulfite

Of course, Judy; multiple coats were soon discovered and prevalent. But
this was the original concept before some brave soul started multiple
coating and then it became the norm--among the Austrians and Germans, for
sure, if not the French and English right away.

The thought was that the brushing on of the next coat would immediately
soften the one below, not that in development the one below would soften.

Watzek, Henneberg, Kuehn, Kosters, Meyer, etc.
Chris
----- Original Message -----
From: "Judy Seigel" <jseigel@panix.com>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Thursday, August 26, 2004 12:13 AM
Subject: Re: Sodium Bisulfite

>
> On Wed, 25 Aug 2004, Christina Z. Anderson wrote:
>
> > But one of the fascinating things I found in research was they thought
> > multiple coats weren't possible--that the next gum coat would soften the
one
> > below. Now we're the smarter.
>
>
> Chris, you say "they thought" -- I daresay some folks may have thought
> that, but I don't recall reading it... or at most once. And there have
> been many writers who suggested multi-coats, from Heinrich Kuehn & that
> other Austrian whose name I don't think of this minute, unless it's
> Wurzel, which I don't think it is, to even our hero Paul Anderson, who
> suggested 3 coats as standard, probably as early as his first book
> (1917?).
>
> I'll add BTW that even among us smart people nowadays it has been found
> that a subsequent coat *can* soften a layer underneath, as was discussed
> on this list circa 1998... and as I myself have encountered. My theory is
> that it might have been more frequent early on when dichromate saturation
> was generally less... tho who knows, it could have been anything.
>
> Judy
Received on Thu Aug 26 05:58:52 2004