Pink/Magenta Stain (not blue, which is a different issue)

Discussion in 'B&W: Film, Paper, Chemistry' started by Photo Engineer, Nov 23, 2010.

  1. thuggins

    thuggins Member
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    This problem was happening occasionally with Pan F. I just developed a roll the other day that had a slight pinkish cast. Since we had an overcast day yesterday I taped the archival sheet to the window. After about 8 hours of indirect light compounded by filtering thru a fairly heavy overcast, there was little change. Then the sun broke thru with some dappled light and was at an angle to directly hit the film. In about five minutes the pink was completely gone.

    Another roll was developed several weeks ago and has just been sitting on the table. I checked it and it has cleared, as well.
     
  2. StoneNYC

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    Good luck in 10 years when they are all fogged :/
     
  3. Tom Kershaw

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    I haven't gone through the whole thread, not having been on APUG for a long time but I stopped having magenta stain problems with a 10 minutes running water wash rather than using the old 'ILFORD' method of a process of exchanges.

    Tom
     
  4. OP
    OP
    Photo Engineer

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    Fogged? How?

    As for washing method, the continuous wash recommended by many is the best.

    PE
     
  5. thuggins

    thuggins Member
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    Thanks, PE. Took the words out of my keyboard!
     
  6. Gerald C Koch

    Gerald C Koch Member

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    Why is this such a vexing problem for some? There must be other matters that are more important. Like why paper towels never tear neatly along the perforations. :smile:
     
  7. NJH

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    Quite. I noticed it recently with Tri-X developed in DD-X mostly because my usual dev of choice Rodinal seems to get rid of it. I did a little test just like others where I left some film on the window sill for a day and that was enough to remove the pink stain even given our recent lack of sunshine for about the last 4 months.
     
  8. ericdan

    ericdan Subscriber

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    Paper towels not neatly tearing does cause some discomfort indeed. I can totally relate to you on that.
    I am too angry though, because even in that 'not so neat' state they still soak up liquid.
     
  9. claudiosz

    claudiosz Member
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    My experience: after fixing, 3 minutes of washing. 3 minutes in a solution of 5 g/l of sodium carbonate. 15 minutes of normal washing. Photoflo and go.
     
  10. Sirius Glass

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    Yes, but if the film is pink after washing, I refix for as long as 10 minutes, wash and use PhotoFlo.
     
  11. thuggins

    thuggins Member
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    So what about a not so pink cast? I've got some Ultrafine Extreme that is sort of purple. It is definitely a different hue than other films. Two days sitting in the sun have shown that this will not bleach out.

    So I assume the base material has been deliberately dyed this color? Why? Maybe it won't interfere with printing but it makes it more difficult to view the negative. Not as bad as the orange mask on C41, but nothing is that bad.
     
  12. MattKing

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    That is what a re-fix and a HCA bath and a re-wash are for.
     
  13. Tom Kershaw

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    In the Jobo I use fix one-shot for the most part; no residual magenta stain problems.
     
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  15. OP
    OP
    Photo Engineer

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    Well, this thread is not about the blue or in your case "purple" cast.

    This is the antistatic material incorporated into the support to prevent or decrease static electricity. It cannot be removed. It does no harm.

    OTOH, in the case of this film, it could also be that part of the AH layer remains, but this is not very probably.

    PE
     
  16. StoneNYC

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    Sorry PE,

    I think having been away from the thread and come back to it, I was thinking this was a not fully fixed issue rather than a residual fixer issue. So I was thinking if the film weren't fully fixed it would fog over time. My apologies.
     
  17. Gerald C Koch

    Gerald C Koch Member

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    [​IMG]

    WHAT ME WORRY

    Since this thread is six pages long and keeps veering off into what people do to remove the stain, I thought a friendly reminder that the dyes will not harm film nor the processing solutions was in order.
     
    Last edited: Mar 31, 2017
  18. Petraio Prime

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    I use Perma-Wash, and that clears the film nicely.
     
  19. jbmia

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    +1 on a 10 min running wash.
     
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