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History Of Papermaking
Part 1 of Paper ....a, 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-Raschid's rule, with the
golden age of Islamic culture that brought papermaking to Europe.
By the 14th century paper mills existed all over Europe, p.... Part 2 of Paper ....dwood 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 composed of cellulosic fibres is
water absorbent. Thus, aqueous liquids will penetrate it and spread in it.... |
Number of words: 534 - Approximate pages: 2 |
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