[pure-silver] Re: How do you wash fiber paper?
- From: "Edward C. Zimmermann" <edz@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Fri, 01 Jul 2005 09:45:42 +0200
Much consensus seems to support these vertical washers but most are just
simple dividing schemes. These work well for a comparatively high throughput
of similarly sized large prints. Most amateur darkrooms seem to operate them
at a tiny fraction of their capacity. They are comfortable but also large,
less than optimally portable and expensive making them, in my view, less than
ideal to many of our lower capacity amateur darkrooms.
Back in the days when baryta fibre prints were the standard even for mass
operations and prints were not all "large" one washed in big tubs (often
cascaded and dimensioned to the operative capacity demands), instead of plastic
aquariums, and kept prints from another, instead of by static plexiglass walls,
by simple clips fashioned from natural cork and latex rubber bands.
Paterson and others make plastic print drying stands. These can be abused in
tubs fashioned from storage boxes to keep even larger double weight prints
(even 12x16") separated in smaller space.
The Kodak Automatic Tray Siphons, as have been repeatedly mentioned, can
provide a highly reliable source of water circulation and agitiation for
these schemes.
Important to get things working well and keep deadlocks down is to follow
the mantra "faster fixing means shorter wash times", viz. to follow the
current wisdom and fix in more concentrated and faster acting fixers (remember
to test) for an adaquate "least amount" of time (again one can test for this).
Using alkaline or neutral fixers followed by an alkaline bath one can get
down to relatively short washing times.
--
--
Edward C. Zimmermann, Basis Systeme netzwerk, Munich
Office Leo (R&D):
Leopoldstrasse 53-55, D-80802 Munich,
Federal Republic of Germany
http://www.nonmonotonic.net
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