Paper

==History==
It is well-known that the Egyptians already used a form of paper called papyrus, and that the Chinese also used something similar. In 1840 the French chemist Anselme Payen succeeded in extracting cellulose from wood. He produced it by extracting its lignin with the help of nitric acid. Then he bleached the remaining substance with chlorine. In 1866 Benjamin Chew Tilghman perfected a procedure in which he treated heated wood in large pressurized drums with sulfuric acid and calcium bisulfite. This resulted in a pure white celluloid suitable for the production of paper.
==Did You Know That?==
In 1866 Benjamin Tilghman treated heated wood with sulfurous acid and calcium bisulphate in large pressurised drums because he wanted to extract the lignin from the raw material. This caused the wood to lose its stability. The result of this process was a pure, white pulp which was extremely suitable for the production of paper. Paper consumption is constantly increasing, as the number of offices and administrative institutions is also constantly rising. Mountains of paper are to be found in most offices. People now also send more mail than ever before.
Category:Papermill
Category:1900
Category:Printing Shop
Category:3rd Degree Product
Category:Final Product