[pure-silver] Re: Yellow edges
- From: "Dave Valvo" <dvalvo@xxxxxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 24 May 2005 13:39:03 -0400
Justin,
I don't think you said which side of the paper looks yellow; face , back or
both.
Dave
----- Original Message -----
From: "Justin F. Knotzke" <jknotzke@xxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Tuesday, May 24, 2005 9:25 AM
Subject: [pure-silver] Re: Yellow edges
> On 5/23/05, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
>
> > A couple of questions: First, how long after processing
> > is the yellow stain appearing? It sounds like these are just
> > done and coming out of the wash with the stain.
>
> Yes, as soon as they come out of the wash.. and even after they
> come out of the fix they start to turn yellow. The RC isn't as bad as
> the FB. The FB has to go into the trash. The RC just has it around the
> edges.
>
> > Also, what kind of fixer are you using, type and brand?
>
> Ilford Rapid Fixer, 5L jug.
>
>
> > Are you using a single or two bath system?
>
> Single.
>
> > Test the prints for residual silver by using Kodak Rapid
> > Selenium Toner, diluted 1 part stock to 9 parts water. This
> > similar to the sodium sulfide test but should be used only
> > on well washed prints because it will fail if there is much
> > hypo in the emulsion. Blot the surface moisture from the
> > prints. Then place a couple of drops on a white area of the
> > print (a border for instance) and allow to stand for about 3
> > minutes. Then rinse off. There should be NO visible stain.
> > Any yellow or brown stain indicates unfixed halide in the
> > emulsion. Note, this is a permanent stain so test on a print
> > that can be discareded if it stains. If no stain shows, wash
> > the print again as after toning. This is a better test than
> > any test of the hypo itself because it shows if the hypo is
> > working.
>
> Ok, thanks Richard. I will try this test next time I go into the
darkroo=
> m.=20
>
> However, I have never had this problem before but I have never
> forgotten to put stop in the stop bath. It might be a coincidence..
> Nevertheless, I will do the test but I am going to go out and get
> another bottle of fixer.
>
> Oh I use Agfa Multicontrast paper developer and all my paper is
Ilford.=
> =20
>
> J
>
>
> --=20
> Justin F. Knotzke
> jknotzke@xxxxxxxxx
> http://www.shampoo.ca
>
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