Poor Trapping

First down color is not fully dry

Increase drying speed of first down ink by:

  1. Reducing ink viscosity
  2. Reducing ink film thickness by using shallower anilox volume
  3. Adding faster drying solvents
  4. Increasing dryer temperature and air velocity in dryer

Second down ink is drying too fast and not printing

Check and eliminate air blowing on plates; add slower drying solvents

Wax or slip aid in first down ink is excessive

Check formula and remake ink if necessary

Second down ink is not compatible with first down ink

Consult your Sun Chemical representative for proper ink type