PDA-Presentation (Glueability+Printability+Coating+Base+Paper)
PDA-Presentation (Glueability+Printability+Coating+Base+Paper)
PDA-Presentation (Glueability+Printability+Coating+Base+Paper)
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3. Sheet offset printing process<br />
is a developer and producer of Paper Testing Technology represented worldwide by our sales-network.<br />
Paper Testing Technology<br />
Figure 3: Schematic representation of the sheet offstet printing process/application of offset ink onto paper/board surfaces.<br />
Phase I: Pressure impulse controlled ink/fountain solution penetration into the paper/board surface affected by the surface pore structure and<br />
ink rheology<br />
Phase II: Mineral oil/fountain solution transport from the applied ink/ink emulsion/fountain solution layer, controlled by the surface pore structure<br />
and partly surface sizing/hydrophoby ⇒ increasing of viscosity/fixing of the ink film, reject of fountain solution from the surface<br />
Phase III: Drying/final fixing of the ink layer by hardening reaction (ink oxidation)<br />
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