Non-Image/image area piling is ink and paper fiber build up on the blanket that prevents proper offset.
You may also see at times see piling in the plates and rollers.
| CAUSE | CURE |
|---|---|
| Ink Emulsification. Ink water logged. | Lower water settings. Check ink emulsification curve |
| Rollers improperly set. | Reset rollers |
| Blankets low or under packed | Repack as necessary. Replace blanket |
| Ink improperly dispersed or grind. | Consult with your ink manufacturer |
| Unstable Ink | Consult with your ink manufacturer |
| pH and or conductivity out of range | Check and adjust to proper spec.’s |
| Ink roller train surface temps high | Adjust vibrator chill water to proper temps and check ink train roller settings |
| Dry ink was not fully tranferred from the blanket to the paper causing a relief image | Check blanket to blanket squeeze, blanket cylinder pressure, plate and blanket packing. Increase NPA levels to help keep debris moving. |