When printed ink fails to form a complete continuous coverage, evident by the random formation of small holes in the printed area.


– Ink dries on anilox and fails to transfer fo plate;

– Ink does not form an even film on the substrate;

– Worn anilox;

– Dirt on impression cylinder.


– Use slower evaporating solvents, decrease dryer capacity. Increase press speed;

– Reduce ink viscosity. Increase ink film thickness. Increase plate impression pressure to substrate. Check pre-treatment of substrate or physicalsurface of substrate that it is not irregular, pitted or contaminated. Check metering system;

– Examine condition of anilox roll for large land areas. Replace if necessary;

– Clean impression cylinder.

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