U of S | Mailing List Archive | alt-photo-process-l | RE: a few questions - Fabriano EW and palladium

RE: a few questions - Fabriano EW and palladium

With Palladium and PotOx, I was NEVER able to adequatly clear regardless of the level of pre-treatment in an acidifying bath. Your problrm sounds like it might be a clearing issue.

-----Original Message-----
From: Paul Viapiano <viapiano@pacbell.net>
Sent: 1/9/2009 12:54:46 AM
To: alt-photo-process-l@usask.ca <alt-photo-process-l@usask.ca>
Subject: a few questions - Fabriano EW and palladium

Hi all...

I have a few questions re using Fabriano EW with palladium. My previous 
experience with using this paper for argyrotypes was generally very good.

I acidify with a 2-3% oxalic acid bath for at least 5 minutes, until no more 
bubbles can be seen.

I coat with FO #1 and palladium, using no contrast agent. The digital 
negatives I use have sufficient density for achieving a good print. Printing 
on Platine in this manner has been successful, yielding a long-range print 
tonality with good detail and color. I use an ammoniumm citrate developer, 
rinse and then clear with a citric acid first bath, and successive HCA baths 
followed by a water wash.

I just started working with Fabriano EW for palladium work, and the tonal 
results so far are decent, however there is some yellow-gold speckling in 
several .dark areas of the print. At first I thought it was a coating 
problem due to sizing, and added a touch of Tween 20 to the solution, but 
the yellow speckles still showed up.

Here's a scan of the problem:


Has anyone seen this before? I'd love some feedback on this...