My understanding of dry down is that it is only a function of paper
shrinkage-- as the paper shrinks, the image particles come closer together,
resulting in higher density (both physically and visually). Sizing would
presumably influence degree of paper expansion and contraction, so the
influence of sizing would be predicted by this explanation. Are there other
factors or better explanations than this?
Gawain Weaver
-----Original Message-----
From: Ryuji Suzuki [mailto:rs@silvergrain.org]
Sent: Thursday, July 20, 2006 3:54 PM
To: alt-photo-process-l@usask.ca
Subject: Re: palladium drydown and developer
On Thu, 20 Jul 2006 14:27:24 -0400 (EDT), TERRYAKING@aol.com said:
> One of the things we found during our retro-invention programme was that
> the
> method of sizing can can make a ignificant difference. In fact we have
> found
> two methods both of which significantly improve speed and gradation
> while
> one reduces the amount of dry down and the other appears to eliminate it
> completely.
What's so new about it? It's well known that the binder has a great
influence on the image density and drydown.
Received on 07/20/06-02:27:18 PM Z
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