Paper flatness after coating

Discussion in 'Alternative Processes' started by N O Mennescio, Aug 18, 2004.

  1. N O Mennescio

    N O Mennescio Member

    Messages:
    57
    Joined:
    Feb 5, 2004
    Location:
    Gothenburg,
    Hi all. I recently bought some Cranes paper from B&S to use for pt/pd printing. It arrived and was to my surprise only 120 gsm (very thin). When I coat it it becomes all ”wavy” and it is more or less impossible to get good contact between paper and negative. Any ideas on how to get it flat again?
     
  2. Dave Miller

    Dave Miller Member

    Messages:
    3,894
    Joined:
    Dec 22, 2003
    Location:
    Middle Engla
    Shooter:
    Medium Format
    You could try the watercolour artists method of of preparing their paper by pre-shrinking it on a board.
     
  3. clay

    clay Subscriber

    Messages:
    1,125
    Joined:
    Nov 21, 2002
    Location:
    Asheville, N
    Shooter:
    Multi Format
    Your best bet for better print quality and relief of flattening issues is to buy some of their COT320. It is a much better, heavier weight paper. Or invest in a vacuum frame. You probably don't want to pre-shrink platinotype because it loses its nice finish and a lot of the minimal sizing it contains.
     
  4. Robert Kennedy

    Robert Kennedy Member

    Messages:
    750
    Joined:
    Sep 7, 2002
    Location:
    Just north o
    Shooter:
    Medium Format
    A tip I got here was to attach the paper to a board with washout tape. It works VERY well. And, after development if it goes wavy again, you can just rewet, reapply the tape, dry, and it works!

    You do have to cut the tape off, so plan for a margin....
     
  5. mark

    mark Member

    Messages:
    5,264
    Joined:
    Nov 13, 2003
    What is washout tape?
     
  6. shinn

    shinn Member

    Messages:
    92
    Joined:
    Apr 11, 2004
    Location:
    Bezerkeley,
    yeah, what's wash out tape? I've been using Seal's releasable sheets with good luck...not too releaseable though.

    Happy Days
     
  7. Robert Kennedy

    Robert Kennedy Member

    Messages:
    750
    Joined:
    Sep 7, 2002
    Location:
    Just north o
    Shooter:
    Medium Format
    It is also called watercolor tape. It is basically brown paper tape that has an adhesive side. Dunk it in water and the adhesive becomes active. When it dries, it sticks hard. When wet, it "washes out". Very useful trick. I think Aggie turned me on to it.
     
  8. cjarvis

    cjarvis Member

    Messages:
    183
    Joined:
    Sep 24, 2002
    Location:
    Maryland
    Shooter:
    Large Format
    Better yet. Stop using Kid Finish and use Cranes Platinotype instead.
     
  9. Dave Miller

    Dave Miller Member

    Messages:
    3,894
    Joined:
    Dec 22, 2003
    Location:
    Middle Engla
    Shooter:
    Medium Format
    That's what I told him to do but it wasn't well received, although it's worked for the watercolour brigade for many years. The worst that can happen if this method is tried is the loss of a sheet of paper. It's the same method that I use for preventing drydown with FB paper prints.
     
  10. N O Mennescio

    N O Mennescio Member

    Messages:
    57
    Joined:
    Feb 5, 2004
    Location:
    Gothenburg,
    Thanks for the tips. Unfortunately the taping down only works if the whole paper is equally wet. I would rather not coat a larger area than necessary.
    But thanks anyway.
     
  11. wmlaven

    wmlaven Member

    Messages:
    17
    Joined:
    May 13, 2004
    Location:
    San Francisc
    If you're not getting good contact between the neg and paper its because your printing frame isn"t very good. A good frame will squish wavy paper with no problem. Best is a vacuum easel. Even with flat paper, some print frames do a bad job. Check that before you start jumping through hoops unnecessarily with tapes, paper flattening, etc.