Impression Loss

Discussion in 'Letterpress' started by Tomujani Ului, Oct 24, 2021.

  1. Tomujani Ului

    Tomujani Ului New Member

    Joined:
    Oct 2021
    Messages:
    2
    Location:
    Suva, Fiji
    Hello.
    We are having impression loss on our 10 x 15 heidelberg platen machine while die cutting stickers. This happens after 20 impressions and we need to increase the pressure again and at times it cuts right through the stickers. The collar at the back of the machine is not damaged and we are looking for a solution to this problem.
    We kindly need your assistance.
     
  2. mantman

    mantman Senior Member

    Joined:
    Nov 2015
    Messages:
    223
    Location:
    Greece
    Is your jacket new?
    Do you tighten the second collar of impression handle? One is for the adjustment of pressure and the other to keep it steady, i used to increase/decrease pressure turning whole collar by half or more turn but that is not correct as showed by older platen user.
     
  3. Tomujani Ului

    Tomujani Ului New Member

    Joined:
    Oct 2021
    Messages:
    2
    Location:
    Suva, Fiji
    Thank you Sir. Yes I am using a new jacket. The adjustments on the impression handle is done exactly the same way as you mentioned but the problem still exist.
     
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