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THE PAPER
THE PAPER

The paper is a thin sheet of pasta made ​​with vegetable fibers are crushed, bleached, diluted in water, then dried and hardened, to the pulp usually is an added substancesuch as polypropylene or polyethylene to provide different characteristics. The fibers are bonded by hydrogen bond links. Also called paper, sheet or foil to its more common as foil In ancient Egyptwas written on papyrus (from which the word paper), which was obtained from the stem of a plant very abundant on the banks of the Nile (Cyperus papyrus). In Europe during the Middle Ages, parchmentwas used which consisted of skins of goats or sheep tanned, ready to receive the ink, which unfortunately was quite expensive, which caused from the eighth century, popularized the unfortunate habitdeleting the text of the scrolls for overwriting (giving rise to the palimpsest) thus losing a valuable amount of work.
The role
However, the Chinese and producing paper from waste silk, rice strawand hemp, and even cotton. Is traditionally considered the first papermaking process was developed by the eunuch Cai Lun, an adviser to Emperor He of Han, in the S. II d. C. For about 500 years, theart of paper making was limited to China in 610 was introduced in Japan, and about 750 in central Asia. [1] Knowledge is transmitted to the Arabs, who in turn led to what are now Spain and Sicily in thetenth century The paper-making spread to France that produced it using linen since the XII century.
It was the general use of the shirt, in the fourteenth century, which allowed that there wassufficient available cloth or old shirts to make paper at affordable prices thanks to which the invention of printing allowed together with the production of paper prices emergence of the book fair, notas a curiosity but as an affordable product.

Since then the paper has become one of the flagship products of our culture, not only made of old rags or cotton but also a variety of plant fibers,...