The hunt for perfect rosette edge to edge

Discussion in 'Heidelberg Printing Presses' started by mantman, Apr 18, 2018.

  1. mantman

    mantman Senior Member

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    How do you check registration issues? Is it better to use glossy paper or satin? Do you bring crosses to perfection at middle of sheet and adjust accordingly or is it better to register first at gripper edge of sheet to eliminate the stretch of paper?
    I have slight misregistration at GTO VP and want to avoid messing with plate/blanket squeeze and i adjust through rip with web growth since there is the option of stretching or compressing the image from bottom/middle/top and left/right/middle
     
  2. asem alsafady

    asem alsafady Senior Member

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    Dear mantman,
    For me prefer to use 135 gms gloss paper, put the impression indicator between plate and blanket to zero, and adjust the lead edge first.
     
  3. mantman

    mantman Senior Member

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    thank you for reply asem i thought the same too first bring lead edge then adjust the rest of image, though i disagree with 135 gsm -unless its thickness is 0,10mm-
     

  4. asem alsafady

    asem alsafady Senior Member

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    Location:
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    Hi mantman,
    This is the idea, 0.10mm thickness, with the indicator at Zero.
    This is done by Heidelberg experts also.
    Good luck.
     
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