From: Scott Wainer (smwbmp@starpower.net)
Date: 04/07/03-12:50:55 AM Z
Hi Chris,
I think the problems I was having with kallitype had to do with my adding
gum arabic to the sensitizer. I was adding it in the hopes of keeping the
sensitizer on top of the paper to get better Dmax. I recently read in The
New Platinum Print that platinum/palladium prints are prone to
solarization - get lighter in areas where they should get darker with more
exposure - if a thin layer of sensitizer rests on top of the paper rather
than in the fibers. I guess the gum was working better than I thought
because I have had no more problems since I stopped using it.
Thanks for the info,
Scott
smwbmp@starpower.net
----- Original Message -----
From: "Christina Z. Anderson" <zphoto@montana.net>
To: "Alt list" <alt-photo-process-l@skyway.usask.ca>
Sent: Saturday, April 05, 2003 11:10 AM
Subject: bronzing/solarizing/plating out
> Scott Wainer,
> Did you ever figure out why your kallitypes (I think that was the
> process you were using, correct?) were bronzing or plating out? I just
came
> across this other note in my files and was wondering if your image was
> bronzing or plating or solarizing...but anyway, in reference to Van Dyke I
> have noted: can be due to certain papers, using heat to dry the print,
> waiting too long to expose the print, overexposing, too much coating, or
not
> using an acid wash in your processing so that silver plates out on the
> image. I also have noted a couple places that Strathmore does this, and
have
> no idea why one paper would do this more than others...Unless it is more
> alkaline, perhaps...
> Just thought I'd pass this on for whatever it is worth--maybe
nothing.
> Chris
>
>
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