From: clay (wcharmon@wt.net)
Date: 01/29/02-08:35:17 PM Z
May well be. The problem is wildly unpredictable. I will get several sheets
in the same batch that are terrible, then have some good ones.
Clay
----------
>From: Katharine Thayer <kthayer@pacifier.com>
>To: alt-photo-process-l@skyway.usask.ca
>Subject: Re: Paper again.
>Date: Tue, Jan 29, 2002, 12:06 PM
>
>Ruth Formanek wrote:
>>
>
>> >>
>> Clay: What causes the "dreaded black spots"? Could it be the residue of
>> the metals in the potassium oxalate?
>
>
>I wonder if these are the same black spots/speckles I've seen when
>testing Platine for gum printing, which look to me like the same black
>speckles that have led gum printers to abandon Arches aquarelle, in
>which case it may not be related to anything in the platinum process per
>se but to problems in the way Arches sizes their papers.
>Katharine Thayer
>
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