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The printing method dating back to ancient times |
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| Release time:2013-05-07 Source:admin Reads: | |
| Many standard printing methods are applied in the printed labels; printing 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-scale industrial process, and is an essential part of publishing and transaction printing. The earliest form of printing was woodblock printing, with existing examples from China dating to before 220 A.D. and Egypt to the fourth century. Later developments in printing include the movable type, first developed by Bi Shang in China, and the printing press, a more efficient printing process for western languages with their more limited alphabets, developed by Johannes Gutenberg in the fifteenth century. The earliest surviving woodblock printed fragments are from China and are of silk printed with flowers in three colors from the Han Dynasty, and the earliest example of woodblock printing on paper appeared in the mid-seventh century in China. Copper movable type printed labels in China at the beginning of twelfth century. It was used in large scale printing of paper money issued by the Northern Song dynasty. Koreans invented a metal type movable printing using bronze. Type-casting was used, adapted from the method of casting coins. The character was cut in beech wood, which was then pressed into soft clay to form a mould and bronze poured into the mould and the type was finally polished. Printing spread early to Korea and Japan, who also used Chinese logograms, but the techniques also were used in Turpan and Vietnam using a number of printed labels. Unlike the diffusion of paper, however, printing techniques never spread to the Islamic world. Block printing first came to Europe as a method for printing on cloth, where it was common by 1300. Images printed on cloth for religious purposes could be quite large and elaborate, and when paper became relatively easily available, the medium transferred very quickly to small woodcut religious images and playing cards printed on paper. |
