From: Jason Plunkett (jrplunkett1@home.com)
Date: 06/01/01-04:10:25 PM Z
I had this problem too... but only with Crane's Platinotype. I switched to
Arches Platine and have never seen the black spots again. My coating
procedure was the same for both papers.
Jason Plunkett
----- Original Message -----
From: "Nash Computer Technology" <nashcom@btinternet.com>
To: "Alt Photo" <alt-photo-process-l@skyway.usask.ca>
Sent: Wednesday, May 30, 2001 4:08 PM
Subject: Black Spots in Ziatype
> Hi
>
> The other night I tried to make around five ziatypes from the same
negative.
> Of these, three were spoiled by a tiny black mark on a light area of the
> print. The marks were in a different place on each print, and were the
size
> of a pin-prick.
>
> I'm not sure what caused these. My first thought was dust, but I assume
> that dust would cause a white spot. I couldn't see any marks on the neg,
> and in any case the spots were in a different place.
>
> Could it be a problem in the coating, although I would have expected to
see
> more, and or larger spots?
>
> Or maybe the prints are picking up something when being cleared? I clear
> them in open trays, with changes of citric acid and water.
>
> Any ideas would be most welcome - I may need to carry out more 'print
runs'
> and it can be frustrating when it takes more than an hour to make a print,
> only to find a small but annoying flaw.
>
> David Nash
>
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