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Prining printed labels |
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| Release time:2013-05-22 Source:admin Reads: | |
| Printed labels as the name, they made by priting. This is a process for reproducing text and images, typically with ink on paper using a printing press. It is often carried out as a large-scaleindustrial process, and is an essential part of publishing and transaction printing. Before printed labels appeared，the earliest form of printing was woodblock printing, with existing examples from China dating to before 220 A.D. Johannes Gutenberg's work on his printing press began in approximately 1436 when he partnered with Andreas Dritzehen – a man he had previously instructed in gem-cutting – and Andreas Heilmann, the owner of a paper mill. It was not until a 1439 lawsuit against Gutenberg that an official record exists; witness testimony discussed type, an inventory of metals (including lead) and his type mold. Compared to woodblock printing, movable type page setting and printing using a press was faster and more durable. The metal type pieces were sturdier and the lettering more uniform, leading to typography and fonts. The high quality and relatively low price of theGutenberg Bible (1455) established the superiority of movable type for western languages, and printing presses rapidly spread across Europe, leading up to the Renaissance, and later all around the world. Today, practically all movable type printing ultimately derives from Gutenberg's innovations to movable type printing, which is often regarded as the most important invention of the second millennium. Offset printing is a widely used printing technique which also used in printed labels. 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. |
