Beginning of Essay
Papermaking goes as far back as 105 A.D. when Ts'ai Lun, an official at the Imperial Court of China, made a sheet of paper using mulberry and other fibres along with fish nets, rags and hemp waste. The first paper was made in 793 A.D. in Baghdad during Harun-ar- ....

Middle of Essay
.... Soon many publishing processes were developed and the paper industry no longer had to depend on rags and linen and this made mass production possible. There were two main kinds of pulping processes used in the 18th century and they were, mechanical or groundwood pulping and chemical pulping. Mechanical pulping contains certain wood components and therefore, it is not suitable for paper in which high whiteness and permanence are required. Mechanical pulp was first made in Germany in the 1840's, but was not used much until 1870. Chemical wood pulp is used when high whiteness, strength and permanence are required. VAT SIZING: A sheet of paper co ....