Specialized printing technique using coloured inks and modified presses. Juxtaposition of colours is achieved by submitting each sheet to successive impressions by typeforms each of which prints only on areas designed to carry a single colour and inked only in that colour. Three colours of ink can reconstitute the visual effect of all the range of colours by combining them appropriately; if all three inks are applied to an area, it almost appears black. Standard colour printing, called four-colour printing, employs magenta, yellow, cyan (blue), and black inks.

Learn more about colour printing with a free trial on Britannica.com.

In printing, set-off is the term given to the unwanted transfer of ink from one printed sheet to another. The problem can occur with most types of printing, and is avoided by the use of anti-set-off spray powder.

Links

• lithography
• offset printing
• letterpress printing
• printmaking
• printing press
• color printing - Colour Printing
• MAN Roland
• Koenig & Bauer - KBA
• Komori
• Heidelberger Druckmaschinen - Heidelberg
• See also Printing

External links

• Learn about printing — International Paper
• Glossary of printing terms — International Paper

References