Separate dots in the screen area, connect to each other in an irregular way.

1 The volume of the anilox roller is too high.
2 The screen of the printing forme is too fine
3 The ink viscosity is too high and not suitable for printing screen jobs.
4 Dirt in the printing forme from paper dust.
5 Excessive pressure.

1 Use an anilox roller with a lower volume.
2 Check and normalise the relationship of the screen (L/cm or L/in) between printing form and anilox roller.
3 Adjust the ink viscosity or change the type of ink.
4 Wash the printing forme and check the paper quality.
5 Adjust the printing pressure.

Helmut Mathes, troubleshooting defects supplied curtesey of Flexo & Gravure Int''l 2011


Controlling the variables in the Pre-press of the flexo process, helps to eliminate variations and printing defects.

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The shape and consistency of anilox cells makes a huge impact on ink transfer and cleanliness of the inking process to the printing plate.

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The advantage of Direct Computer to Print

The advantage of Direct Computer to Print

Fast overall process with a simple digital workflow.

Total digital dot creation controls dot shape, relief depth and dot height

Direct engraving of ITR seamless continuous sleeves

Direct engraving eliminates washout and drying process

Perfect registration of plates and sleeves

'Cal-Kwik' automatic material calibration for engraving Polymer or Elastomer

'Perfect Balance' automatically re-balances the print form for high-speed printing