From: Witho Worms en Jorien van Santen (verzet13@xs4all.nl)
Date: 01/16/02-12:38:16 PM Z
----- Original Message -----
From: "Witho Worms en Jorien van Santen" <verzet13@xs4all.nl>
To: <lkudzma@earthlink.net>
Sent: Wednesday, January 16, 2002 8:53 AM
Subject: Re: Papers
> I am curious if anyone has researched this contrasting agent except for
> Sullivan ? I was not able to detect significant changes in contrast with
> this product.
> As far as I know and experienced the contrast is not more influenced than
by
> adding just the 'normal' platinum solution to the palladium.
>
> Witho
>
>
> ----- Original Message -----
> From: "Linas Kudzma" <lkudzma@earthlink.net>
> To: "alt-photo-process-l" <alt-photo-process-l@skyway.usask.ca>
> Sent: Wednesday, January 16, 2002 4:13 AM
> Subject: Re: Papers
>
>
> > Wendy,
> > What I was talking about was using what B&S calls NA2 platinum as a
> > contrast agent in place of B&S Sol#2. There is a good technical paper
> about
> > this special platinum complex on the B&S web site.
> >
> > I'm surprised you can hang the sheets with B&S Sol#2 overnight. I found
> > that anything with chlorate (as in sol#2) needed to be used promptly (a
> few
> > hours). It may be paper dependant? I don't use Platine.
> >
> > Linas
> >
> >
> > > [Original Message]
> > > From: Wendy Gollihue <wgolli@flash.net>
> > > To: <lkudzma@earthlink.net>
> > > Date: 1/15/2002 1:26:06 PM
> > > Subject: Re: Papers
> > >
> > > Linas,
> >
> > >
> >
> > > I use the B&S palladium solution no. 3 that uses NaCl. I use the
> Ferric
> >
> > > oxalates 1 $2 from B&S at 27%.
> >
> > >
> >
> > > Is your finding also true with palladium as the component. I truly
have
> > had
> >
> > > no problems hanging it (platine) all night in the dark but will listen
> and
> >
> > > am willing to change to prevent upcoming difficulties that others have
> >
> > > experienced.
> >
> > >
> >
> > > Wendy (TX)
> >
> > >
> >
> > > ----- Original Message -----
> >
> > > From: "Linas Kudzma" <lkudzma@earthlink.net>
> >
> > > To: "alt-photo-process-l" <alt-photo-process-l@sask.usask.ca>
> >
> > > Sent: Monday, January 14, 2002 10:38 PM
> >
> > > Subject: Re: Papers
> >
> > >
> >
> > >
> >
> > > | Carl,
> >
> > > | Paper coated with only FeOx and metals, with the Pt component
being
> >
> > > | Na2PtCl6, can sit in the dark for days without any bad effect. I'm
> using
> >
> > > | Na2PtCl6 (sodium chloroplatiATE) as the contrast agent (typically
20%
> of
> >
> > > | the metals). In fact, sometimes I like the prints better from such
> > paper
> >
> > > | that sat in the dark overnight. Maybe this is due to a slower, more
> even
> >
> > > | drying? This is for DOP prints on Cranes Cover 90 Natural.
> >
> > > |
> >
> > > | Previously, when I used chlorate for contrast, letting paper sit
> > overnight
> >
> > > | was not possible. This was without a doubt due to side reactions of
> the
> >
> > > | chlorate, which is a very reactive oxidizer. The Na2PtCl6 salt is
very
> >
> > > | stable and a nice contrast agent.
> >
> > > |
> >
> > > | Linas
> >
> > > |
> >
> > > | > [Original Message]
> >
> > > | > From: Carl Weese <cweese@earthlink.net>
> >
> > > | > To: <alt-photo-process-l@sask.usask.ca>
> >
> > > | > Date: 1/14/2002 12:35:02 PM
> >
> > > | > Subject: Re: Papers
> >
> > > | >
> >
> > > | >
> >
> > > |
> >
> > > | > > Wendy: Internally sized. Very textured surface -- not good or
> bad,
> >
> > > | just a
> >
> > > |
> >
> > > | > > question of whether you want that or not for a given image.
> Tough,
> >
> > > | heavy
> >
> > > |
> >
> > > | > > paper. YOU HAVE TO "RE-ACIDIFY" IT for pt/pd printing,
> >
> > > |
> >
> > > | >
> >
> > > |
> >
> > > |
> >
> > > |
> >
> >
> >
> > Linas Kudzma
> >
> >
> >
> >
>
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