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Papers
Paper is thin material used for writing upon, printing upon or packaging, produced by the amalgamation of fibres, typically vegetable fibers composed of cellulose, which are subsequently held together by hydrogen bonding. more...
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While the fibres used are usually natural in origin, a wide variety of synthetic fibres, such as polypropylene and polyethylene, may be incorporated into paper as a way of imparting desirable physical properties. The most common source of these kinds of fibres is wood pulp from pulpwood trees. Vegetable fibre materials such as cotton, hemp, linen, and rice are also used.
Papyrus and parchment
The word paper derives from the Greek term for the ancient Egyptian writing material called papyrus, which was formed from beaten strips of papyrus plants. Papyrus was produced as early as 3000 BC in Egypt, and sold to ancient Greece and Rome. The establishment of the Library of Alexandria in the 3rd century BC put a drain on the supply of papyrus. As a result, according to the Roman historian Pliny the Elder (Natural History records, xiii.21), parchment was invented under the patronage of Eumenes of Pergamum to build his rival library at Pergamum. Outside of Egypt, parchment or vellum, made of processed sheepskin or calfskin, replaced papyrus as the papyrus plant requires subtropical conditions to grow.
Early papermaking in China
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Paper is considered to be one of the Four Great Inventions of Ancient China, as the first standard papermaking process was developed in China during the early 2nd century. During the Shang (1600 BC-1050 BC) and Zhou (1050 BC-256 BC) dynasties of ancient China, documents were ordinarily written on bone or bamboo (on tablets or on bamboo strips sewn and rolled together into scrolls), making them very heavy and awkward to transport. The light material of silk was sometimes used, but was normally too expensive to consider. Indeed, most of the above materials were rare and costly. While the Han Dynasty Chinese court official Ts'ai Lun is widely regarded to have first invented the modern method of papermaking (inspired from wasps and bees) from wood pulp in 105 AD, the discovery of specimens bearing written Chinese characters in 2006 at north-east China's Gansu province suggest that paper was in use by the ancient Chinese military more than 100 years before Ts'ai in 8 BC. Archeologically however, true paper without writing has been excavated in China dating to the reign of Emperor Wu of Han from the 2nd century BC, used for purposes of wrapping or padding protection for delicate bronze mirrors. It was also used for safety, such as the padding of poisonous 'medicine' as mentioned in the official history of the period. Although paper used for writing became widespread by the 3rd century, paper continued to be used for wrapping (and other) purposes.
Read more at Wikipedia.org
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