[pure-silver] Re: Kodak Special PX 3001paper
- From: Richard Knoppow <dickburk@xxxxxxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 24 Mar 2008 18:20:35 -0700
At 01:43 PM 3/24/2008, you wrote:
PX just means experimental. FX is "film experiment" PX is "paper
experiment". The 3001 just means that was the next number
available from corporate for test projects. It is a more recent
number. Open the box (in total dark, no safelights) and see if there
is a stuffer sheet inside. It will tell you how to process the
paper and hopefully how to expose it. I don't remember if 3001 was
one of mine or not.
Dave
Here is a question maybe you can answer. There has been mention
that cadmium was used as an additive to paper for a long time and
that it had to be removed due to its being an environmental hazard.
What was it used for exactly? Some literature suggests it was a
preservative and some a warm tone agent, perhaps it was both. In any
case it has been suggested that one reason the shelf life of current
papers seems to be shorter than some in the past is due to the lack
of cadmium.
--
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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