Tinting/Toning
Toning is the inability to remove fine ink particles that deposit on to the non — image area of the plate.
Tinting is ink pigments leaching from the ink and feeds back into the fountain solution, that then deposit in the non-image area of the plate.
| Cause | Cure |
|---|---|
| Wrong pH/Conductivity | Check and adjust as necessary. If problem persist consult with your F/S manufacturer |
| Roller settings or durometer not correct | Check durometer and roller settings. Replace or adjust as necessary |
| Plate to blanket pressure to high | Check and adjust to press manufacturer recommended settings |
| Plates | Check exposure and processors |
| Press washes ( Detergent or oil based) | Wash roller train and plates. Rinse 2 or 3 times thoroughly with warm water |
| Fountain solution to strong or weak | Consult with your F/S manufacturer |
| Water temps to high | Adjust recirculation tank chilling unit to 58°–65°. If no chilling unit available consider limited use of ice bags in recirculation tank |
| Ink Temperature | Increase ink vibrator chill water to 80°–90° |
