In general, how is the paper made?

The product emerged in China in the 2nd century

It is made from wood, from which cellulose fibers are extracted, converted into paper after a series of industrial processes. What few people know is that it was not always that way. Paper was invented in China in the 2nd century, but for more than 1500 years the most common raw material for doing so was not wood, but cotton fibers extracted from old clothes, cloths and rags. After printing machines began to develop, from the 15th century, paper consumption increased a great deal, and the world realized that there were no old clothes coming to publish books, magazines, newspapers ... Some European kings even tried to limit the Rags, fearing to run out of paper. Although the Frenchman René Antoine de Reaumour gave the idea of ​​using fibers extracted from wood in 1719, it was not until 1850 that several inventors, such as the German Friedrich Keller, the Englishman Hugh Burgess and the American Benjamin Tilghman, made this possible . A method of digesting the wood with chemicals had to be perfected in order to extract the cellulose and obtain a paper of acceptable quality. Among the chemicals used are certain sulfites (sulfur compounds) - hence the name, for example, of "sulphite" paper. Today, with advanced methods, it is possible to seize up to 98% of the wood from a tree in a paper mill, using bark and other previously discarded parts as fuel for the industrial process itself. In essence, however, the method of manufacturing is still the same, ever since its invention by the Chinese.