RE: Pt./Pd. question acid pre-soak

From: wcharmon@wt.net
Date: 08/12/05-01:06:10 PM Z
Message-id: <1123873570.42fcf32214dc1@newwebmail.wt.net>

I just hang it and let it dry.
Quoting BOB KISS <bobkiss@caribsurf.com>:

> DEAR CLAY & ERIC,
> May be a dumb question but...
> After the acid back soak, do you dry the paper as is with the acid
bath in
> it or do you rinse after and then dry?
> CHEERS!
> BOB
>
> Please check my website: http://www.bobkiss.com/
>
> -----Original Message-----
> From: Clay [mailto:wcharmon@wt.net]
> Sent: Friday, August 12, 2005 10:46 AM
> To: alt-photo-process-l@sask.usask.ca
> Subject: Re: Pt./Pd. question acid pre-soak
>
>
> On Aug 12, 2005, at 9:10 AM, Eric Neilsen wrote:
>
> > Clay, I missed this post yesterday. That was a 2% citric acid bath for
> > several minutes?
>
> I soak the Fabriano EW for about 5 minutes minimum. I try to rotate
> through the stack just like developing sheet film so that I get fresh
> acid on the paper in a regular manner. I don't have any way to
> measure pH to the precision you are talking about. I just have the
> paper strips that are by-guess and by-golly. I generally mix up 4
> liters of acid soak at a time and that seems to treat about 10 full
> sheets of EW with no problem. I mix it fresh each time.
> > Have you just taken the Fabriano and soaked it in
> > distilled water as a pre treatment.
> Yes. It doesn't work. (in the sense of allowing you to make a decent
> platinum print) There is one hell of a lot of carbonate in EW. It
> fizzes when you put it in the acid bath. Tiny little bubbles.
> > Have you checked the pH of the acid bath
> > after? How do you determine how many sheets you can treat?
>
> 10 sheets is all I can dry at one time, and my tray holds about 4
> liters of solution. That is as scientific as I get on the pre-
> treatment issue!
>
> Clay
>
>
Received on Fri Aug 12 13:06:45 2005

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