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Re: Specks on my Ziatypes
Hi Jason
This seems to be a fairly common problem with Zias. For some reason, your
solution is plating out during coating. Make sure you are thoroughly
cleaning you coating equipment between coating. Another problem might be
the paper. Some items I have read seem to indicate that Cranes might be
prone to this. Have you checked at the B&S list? It can be accessed through
their website. I believe they have some info on this problem there.
Good luck,
Bob
Bob Lyman ( railroad@northweb.com )
http://www.geocities.com/Soho/Workshop/7610/
http://www.artists-in-residence.com/users/radiance/
----- Original Message -----
From: jason plunkett
To: alt-photo-process-l@sask.usask.ca
Sent: Tuesday, October 17, 2000 11:25 AM
Subject: Specks on my Ziatypes
Hello all,
I've just started making ziatypes and noticed a problem recently with black
specks that show up during the coating of the paper. I am coating Crane's
Platinotype White with a rod using only Ammonium Ferric Oxalate and Lithium
Palladium. On the first few pases with the rod, everything is fine, then a
black precipitate starts to form on subsequent pases. This did not happen
on the first few prints I made, but now seems to happen every time. The
chemicals are less than a month old. Anyone have a clue as to what is going
on, and how can I stop it?
Thanks,
Jason Plunkett