Weak Print Color

Ink viscosity is too low

Increase ink viscosity

Anilox volume is too low

Increase anilox to proper volume

Sticky-back tape is too soft

Use harder tape for line work to achieve good ink transfer

Ink is over-extended

Check formula and add fresh ink

Ink formulation is too weak

Check raw ink formula for proper strength; check to see if ink is re-work and has proper strength

Substrate is not receptive to ink

Check substrate surface; check for proper film treatment

Ink is drying on plates or anilox

Eliminate any excess air blowing on plates and anilox; add slower drying solvents.

Ink is kicking-out or settling

Make sure ink is properly mixed, with no settling on bottom or signs of ink separation

Ink is aged I used – worn out

Refresh ink