Evaluation of Resins in Energy Curable Offset Inks - CYTEC Industries
Evaluation of Resins in Energy Curable Offset Inks - CYTEC Industries
Evaluation of Resins in Energy Curable Offset Inks - CYTEC Industries
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2<br />
Introduction to <strong>Energy</strong> <strong>Curable</strong> <strong>Offset</strong><br />
Plate<br />
cyl<strong>in</strong>der<br />
Blanket<br />
cyl<strong>in</strong>der<br />
Ink duct<br />
Impression<br />
cyl<strong>in</strong>der<br />
Fig. 2: <strong>Offset</strong> Lithographic Process.<br />
1<br />
2<br />
3<br />
Damp<strong>in</strong>g<br />
rollers<br />
Fount<br />
solution<br />
Feed<br />
substrate<br />
The process is called <strong>of</strong>fset lithography (see Fig. 2)<br />
because the <strong>in</strong>k is not transferred directly from<br />
the plate to the substrate, but is first “<strong>of</strong>fset”<br />
onto a rubber blanket cyl<strong>in</strong>der and is then<br />
transferred to the substrate.<br />
The <strong>of</strong>fset lithographic process dom<strong>in</strong>ates the<br />
graphic <strong>in</strong>dustry <strong>in</strong> a wide range <strong>of</strong> formats:<br />
from multiple color 8½" x 11" (Sheet-fed<br />
pr<strong>in</strong>t<strong>in</strong>g, see Fig. 3), to pr<strong>in</strong>t<strong>in</strong>g magaz<strong>in</strong>es and<br />
newspapers on a cont<strong>in</strong>uous web <strong>of</strong> paper<br />
(web <strong>of</strong>fset). This process is particularly suited<br />
to the production <strong>of</strong> lightweight packag<strong>in</strong>g,<br />
books, magaz<strong>in</strong>es, newspapers, brochures, maps,<br />
promotional posters and literature, bus<strong>in</strong>ess<br />
stationery, to name some examples.<br />
Fig. 3: Schematic presentation<br />
<strong>of</strong> a Sheet-fed <strong>Offset</strong> pr<strong>in</strong>t<strong>in</strong>g mach<strong>in</strong>e.