Offset printing is a widely used printing technique where an inked image is transferred from a plate to a rubber blanket, then to the printing surface. It's often combined with lithography, exploiting the repulsion of oil and water using a flat image carrier. Ink rollers apply ink to the image areas, while water rollers apply a water-based film to the non-image areas, ensuring ink adheres only to the intended sections.
In 1901, Ira Washington Rubel discovered that printing from the rubber roller, instead of the metal, made the printed page clearer and sharper.
In 1903, after further refinement of Rubel's discovery, the Potter Press printing Company in New York produced a press.
In 1904, Ira Washington Rubel of the United States invented one version of the offset press for printing on paper, and Kašpar Hermann in Continental Europe created the offset machine prototype.
By 1907 the Rubel offset press was in use in San Francisco.
In 1907, Kašpar Hermann successfully started printing in Germany on his Triumph sheetfed offset press.
In 1954, newspaper publisher Staley T. McBrayer unveiled the Vanguard web offset press for newspaper printing in Fort Worth, Texas.
In 2003, lithography, most often as offset lithography, was described as the primary printing technology used in the U.S., responsible for over half of all printing using printing plates.
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