Chill Roll Condensation

Streaks appear on web or signatures. This is caused by ink resoftening due to solvent condensation on chill rolls

Check dryer and/or chill roll temperature. Use inks with lower boiling point solvents if possible. Consult suppliers of dryer, chill rolls and inks as necessary

Dryer temperature is too high, inhibiting the ability of chill rolls to cool web efficiently

Decrease web exit temperature

Marking appears on chills or delivery equipment

Check web temperature from dryer and chill rolls. Check cooling efficiency of chill roll system

Excessive ink film thickness is being run

Consult your Sun Chemical representative about stronger ink formulations