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Thin material for writing, printing, etc. / From Wikipedia, the free encyclopedia

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Paper is a thin sheet material produced by mechanically or chemically processing cellulose fibres derived from wood, rags, grasses or other vegetable sources in water, draining the water through fine mesh leaving the fibre evenly distributed on the surface, followed by pressing and drying. Although paper was originally made in single sheets by hand, almost all is now made on large machines—some making reels 10 metres wide, running at 2,000 metres per minute and up to 600,000 tonnes a year. It is a versatile material with many uses, including printing, painting, graphics, signage, design, packaging, decorating, writing, and cleaning. It may also be used as filter paper, wallpaper, book endpaper, conservation paper, laminated worktops, toilet tissue, or currency and security paper, or in a number of industrial and construction processes.

Quick facts: Paper, Material type, Physical properties, De...
Material typeThin material
Physical properties
Density (ρ)From 10 gsm to 3000 gsm
Quick facts: Paper, Traditional Chinese, Simplified C...
"Paper" in Traditional (top) and Simplified (bottom) Chinese characters
Traditional Chinese
Simplified Chinese

The papermaking process developed in east Asia, probably China, at least as early as 105 CE,[1] by the Han court eunuch Cai Lun, although the earliest archaeological fragments of paper derive from the 2nd century BCE in China.[2] The modern pulp and paper industry is global, with China leading its production and the United States following.