Insane negative curling driving me insane

Discussion in 'B&W: Film, Paper, Chemistry' started by nickstreme, Mar 24, 2009.

  1. nickstreme

    nickstreme Member

    Messages:
    98
    Joined:
    Dec 19, 2008
    Shooter:
    Medium Format
    Its not too bad, ive seen worse. But it always happens, no matter where im drying them, I can never get them flat. This roll started to bend horizontally ( sprocket holes go towards each other ) but now they are curling the normal way where when you cut them they make rings for if you had giant fingers.

    I really want to contact print from these, but i cant get them flat. I put them in a book with over 150 pounds on it for a day but not much luck. Would it be okay to iron them somehow? They are already cut, the film is TX.
     
  2. keithwms

    keithwms Member

    Messages:
    6,070
    Joined:
    Oct 14, 2006
    Location:
    Charlottesvi
    Shooter:
    Multi Format
    Do you use phot flo or other surfactant in your final wash? Is your drying area very dry?
     
  3. Thomas Bertilsson

    Thomas Bertilsson Subscriber

    Messages:
    15,251
    Joined:
    Jan 21, 2003
    Location:
    Minnesota
    Shooter:
    Multi Format
    Can you roll them up backwards on a developing reel before you cut them up?
     
  4. Vaughn

    Vaughn Subscriber

    Messages:
    5,374
    Joined:
    Dec 13, 2006
    Location:
    Humboldt Co.
    Shooter:
    8x10 Format
    Are you using a fix with hardener? I am wondering if curling might be reduced if no hardener is used (and no heat during drying, too).

    Are you contact printing these just for a record, or as a final product? If just for a record, then putting the negs in negative sleeves and contact printing them will be easier.

    Vaughn
     
  5. pentaxuser

    pentaxuser Subscriber

    Messages:
    8,253
    Joined:
    May 9, 2005
    Location:
    Daventry, No
    Shooter:
    35mm
    I have seen film curl badly if put in an overheated drying cabinet but even then cutting the negs up into strips and placing in a neg carrier with a weight on top such as a heavy book for a few hours did the trick. Mind you this is the U.K where even in Summer, humidity is well over 60%. Might be different where you are.

    If you have access to a drying cabinet I'd try hanging the strip up and simply using the fan to blow ambient temperature air over the negs. Again from a U.K. perspective 15- 20 mins is usually sufficient. I also use Ilford wetting agent without any curl problem. Oh and while they are drying I have a neg clip attached top and bottom. I have never had to use the heat setting to get the negs dry in the times stated

    pentaxuser
     
  6. nickstreme

    nickstreme Member

    Messages:
    98
    Joined:
    Dec 19, 2008
    Shooter:
    Medium Format
    I was thinking about putting the neg stips back onto reels, emulsion side out, then putting it in a steamy bathroom for an hour. Sound good?
     
  7. David William White

    David William White Member

    Messages:
    1,179
    Joined:
    Jun 23, 2007
    Location:
    Hamilton, Ca
    Shooter:
    Multi Format
    Just a sheet of glass will hold curly negs flat against the paper.
     
  8. nickstreme

    nickstreme Member

    Messages:
    98
    Joined:
    Dec 19, 2008
    Shooter:
    Medium Format
    Yeah, but its a total pain trying to get them all lined up right, and I am also looking to scan them, and when they are this curly setting them in the negative holders is basically impossible.
     
  9. mwdake

    mwdake Member

    Messages:
    616
    Joined:
    Aug 25, 2007
    Location:
    FL, USA
    Shooter:
    Multi Format
    I reverse roll my 120 quite tightly and hold it rolled up with a wooden clothes pin just holding the very edge, then I put it in a cupboard away from the dust for about a week.
    This works for me especially with Foma/Arista 200 which curls very badly.
     
  10. Konical

    Konical Subscriber

    Messages:
    1,709
    Joined:
    Jun 1, 2003
    "I was thinking about putting the neg stips back onto reels, emulsion side out, then putting it in a steamy bathroom for an hour. Sound good?"

    Good Evening, Nick,

    Yes. That will tend to work well, particularly when the curl is along the length of the film. In my experience, however, it may take a lot longer than an hour; I usually plan on leaving the film reverse-curled for a couple of days. Even with Foma 200, that normally does the trick. (You're right about the difficulty involved in contacting curled negatives. It is a real pain. Any decent negative carrier, however, should eliminate any printing problems.)

    Konical
     
  11. Anon Ymous

    Anon Ymous Member

    Messages:
    1,479
    Joined:
    Feb 7, 2008
    Location:
    Greece
    Shooter:
    35mm
    I've seen TriX that was left for *days* in a mildly heated drying cabinet. It wasn't curly, that would be an understatement. It curled both vertically and horizontally. Actually 3 pairs of hands were needed to make a contact print :D
     
  12. nickstreme

    nickstreme Member

    Messages:
    98
    Joined:
    Dec 19, 2008
    Shooter:
    Medium Format
    I tried the steam technique i was talking about, it worked okay but the negatives ended up curling again later. How about a dry mount press?
     
  13. Thomas Bertilsson

    Thomas Bertilsson Subscriber

    Messages:
    15,251
    Joined:
    Jan 21, 2003
    Location:
    Minnesota
    Shooter:
    Multi Format
    Repeat question - have you tried rolling the film up with the emulsion side out in a film developing reel? Try it. Let it sit for a day like that.

    Clarification after re-reading my own post... This is after the film is processed and dried. (Man, what's in my head and what gets put in print is sometimes not even close to being the same).

    Sorry for the ambiguity.
     
    Last edited by a moderator: Mar 25, 2009
  14. rickybear

    rickybear Member

    Messages:
    1
    Joined:
    Mar 25, 2009
    Shooter:
    35mm
    Negative Curling

    Hi. This is what I learnt in a news darkroom many years ago. We used to dry the plastic base of the film with good quality chamois leather. Make sure you get all the drops off, because you only get drying marks on the plastic base. You don't touch the emulsion side at all as you won't get drying marks on the emulsion. Using a drying cupboard is not necessary unless you are in a hurry.
     
  15. Konical

    Konical Subscriber

    Messages:
    1,709
    Joined:
    Jun 1, 2003
    "How about a dry mount press?"

    Good Evening, Nick,

    Probably not a good idea! It would, I think, be far too easy to damage film that way, either through excess heat or physical damage from the pressure itself if the platen has any slight irregularity. The reverse curling method mentioned in previous posts (either on a reel or some other cylindrical form) will handle the problem almost all the time. Just give it time to work!

    Konical
     
  16. dancqu

    dancqu Member

    Messages:
    3,676
    Joined:
    Sep 7, 2002
    Location:
    Willamette V
    Shooter:
    Medium Format
    May help. Humidify as well. With the film in reel, place the
    reel in a sealable container. Elevate the reel, add some no
    more than warm water, then seal. Give it a few days. Dan
     
  17. CuS

    CuS Member

    Messages:
    144
    Joined:
    Oct 29, 2007
    Shooter:
    35mm
    Curling can be due to many issues bit I find humidity to be the biggest factor. Also, I recently switched to a hardening fixer and my longitudinal curling is definately more pronounced.