Yellow ink problem ...

Discussion in 'DI Presses' started by sartois, Oct 28, 2011.

  1. sartois

    sartois Member

    Joined:
    Jul 2010
    Messages:
    34
    Location:
    illinois, USA
    Unit 4 (yellow) is not printing correct or vibrant shades of yellow.
     
  2. timc

    timc Senior Member

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    Aug 2009
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    104
    Location:
    leicester
    do you mean the colours before the yellow are picking up into the yellow and discolouring the ink
     
  3. sartois

    sartois Member

    Joined:
    Jul 2010
    Messages:
    34
    Location:
    illinois, USA
    Does not seem to be an ink migration problem. The yellow is dull. I washed the press and I changed the ink.
     
  4. Paul Cavanaugh

    Paul Cavanaugh Senior Member

    Joined:
    Dec 2009
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    628
    Location:
    Kennesaw, GA
    Check your roller stripes, sometimes the third form roller is not touching the distibutor roller and does not clean up properly. It may have old ink on it that has not washed off.
     
  5. tom978

    tom978 Member

    Joined:
    Nov 2011
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    7
    Location:
    Salford
    Carry out extensive maintenance on your equipment clean everything and replace inks, if that doesn't work not sure
     

  6. mightyandy

    mightyandy Senior Member

    Joined:
    Sep 2009
    Messages:
    187
    Location:
    Northern Ireland
    I had issues regarding the dullness of yellow when using several different brands of ink.

    I found the problem was rubbish ink. It was yellowish.

    We switched to classic colours, their range is fantastic and the only DI ink I have used that allows us to produce anything that looks like traditional litho.

    (are old ink wasn't vibrant yellow coming out of new sealed tins.)
     
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