The colour is lacking in colour strength and body.


– Excessive reduction in ink viscosity;

– Excess extender varnish;

– Ink settling out;

– Ink film thickness too thin;

– Dirty/worn anilox rolls;

– Wrong fountain roll specification;

– Tight setting of fountain roll nip;


– Add fresh ink to restore viscosity;

– Add pigment concentrate (toner);

– Thoroughly mix ink in container before adding to ink tray;

– Increase ink thickness by raising ink viscosity, reducing metering of anilox roll or increasing the anilox roll volume;

– If plugged thoroughly clean anilox roll, if excessive land areas exposed, replace anilox roll;

– Select a lower durometer fountain roll;

– Decrease fountain nip roll pressure.

latest news