Fill – In

Print impression is excessive

Reset plate pressure to “kiss” impression

Water-based ink pH is too low

Increase water-based ink pH

Ink is drying too fast

Add slower drying solvents to reduce tack. Tacky inks will usually show stringing from type edges

Plates are worn, uneven, cupped or poorly made

Check plates and replace if necessary

Ink viscosity is too high

Reduce ink viscosity

Plate relief height is incorrect

Adjust plate relief to correct height range

Foreign matter appears in ink

Filter or replace ink; eliminate source of contamination

Ink out of balance – pigment to resin, resin to solvent

Add resin I refresh ink, make sure the correct solvent is being used. Make sure ink is well mixed