Abstract
Non-image area piling on blanket is considered as a
process property of offset printing, which influence on
print quality and press runnability. There is not a
single reason for piling - it is always a combination of
press settings and all the materials used in printing. In
this study the role of the printing plates and fountain
solution purity on piling build-up was clarified.
It was found that piling formation is sensitive to plate
characteristics; different plates produced different kind
and amount of piling on blanket surface. Ink spread to
the non-image area of the plate as spots or tails and
ended up on the non-image area of the blanket. The main
reason for the non-image area piling was found to be the
poor emulsion stability on the plate. The fountain
solution itself did not cause non-image area piling on
the blanket but it affected the mechanism of piling by
interacting with the ink. With fresh fountain solution,
the ink spread mainly as tails from the back edges of the
dots, while with used fountain solution mostly ink spots
were noted on the plate non-image area.
| Original language | English |
|---|---|
| Title of host publication | Advances in Printing and Media Technology |
| Subtitle of host publication | Proceedings of the 37th International Research Conference of iarigai |
| Publisher | IARIGAI - International Association of Research Organizations for the Printing, Information and Communication Industries |
| Pages | 261-266 |
| Volume | XXXVII |
| ISBN (Electronic) | 978-3-9870704-5-7 |
| ISBN (Print) | 978-3-9812704-2-6 |
| Publication status | Published - 2010 |
| MoE publication type | A4 Article in a conference publication |
| Event | 37th International Research Conference of iarigai - Montreal, Canada Duration: 12 Sep 2010 → 15 Sep 2010 |
Conference
| Conference | 37th International Research Conference of iarigai |
|---|---|
| Country | Canada |
| City | Montreal |
| Period | 12/09/10 → 15/09/10 |
Keywords
- heatset offset printing
- thermal plate
- CIP plate
- piling