Saturday, September 19, 2009

Modern Printing Technology

Across the world, over 45 trillion pages (2005 figure) are printed annually. In 2006 there were approximately 30,700 companies in the United States offering printing services, accounting for $112 billion, according to the 2006 U.S. Industry & Market Outlook by Barnes Reports. Print jobs that move through the Internet made up 12.5% of the total U.S. printing market last year, according to research firm InfoTrend/CAP Ventures.

Offset press

Offset printing is a widely used technique among printing services where the inked image is transferred (or "offset") from a plate to a rubber blanket, then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water, the offset technique employs a flat (planographic) image carrier on which the image to be printed obtains ink from ink rollers, while the non-printing area attracts a film of water, keeping the non-printing areas ink-free.