Dry or cure completely. Poor physical properties Poor resistance to abrasion or solvent. Choice of ink is wrong. Chooose correct ink series. Dry or cure completely especially in case of two-component type.
Ink film is thin.
Deepen the etching of the plate or print two or three times. Poor opacity Base color shows through ver-printed ink. Opacity of ink is insufficient. Choose high-opacity ink. Ink film is too thin.