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Offset Printing and Its Scope

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  Offset printing is the most popular kind of printing used these days. Offset printing is so common that almost 40% of all printing jobs are done by using offset printing. The presence of offset printing is felt in every industry. It's used in different fields, like education where it's used for printing books, journals and the different types of reading material. Its usage isn't limited to this field but it's also used on the outer covers of many goods. This offset printing technique has led to the possibility of one of the most important things which we use in our everyday lives: newspapers. WORKING OF OFFSET PRINTING Offset printing is a process in which an image is transferred from an engraved plate to a rubber blanket and then to the printing surface. The first step in offset printing is to create an image on the plate. The image must be created backwards so when it is transferred to the blanket, it appears correctly. The second step is transferring the image ...

The Invention of Industrial Printing Presses

  Early in the Industrial Revolution, the basic mechanics of a hand-operated Gutenberg printing press were still unchanged despite the use of new materials which improved its efficiency. By the year 1800, Lord Stanhope had built a printing press made from cast iron. This reduced the hand-operated force required to operate the press by 90%. It also doubled the size of the printed area and increased its capacity to 480 pages per hour--more than double that of older presses. Though manual presses were already in use, the idea of steam power for running machinery was conceived. To improve the printing flatbed itself, the idea of using a rotary motion of cylinders was thought about. These ideas were implemented successfully by German printer Friedrich Koenig in a series of designs devised between 1802 and 1818. In 1810, Koenig patented a new steam printing press. Designed "much like a hand press connected to a steam engine," the first model was produced with the help of Germ...