When was paper first made
The first paper was made about 2.000 years ago in China, by aman called Ts’ai Lun.
He tookthe string inner bark of Mulberry tree and pounded it in water until it became mass offlatened threads.
He
then placed this pulped solution onto a flat trây of fine bamboo trips.
The water was allowed to
drain throughthe bamboo,
and threads in
the bamboowere left to dry.
The dried result was aflat,
fibrous material considered
to
be thevery first paper.
As with all new discoveries,improvements were gradually made. Oneof these was to
brush starch over thepaper
to improve it.
The technique of making paper was takento Russia and
the Middle East by
Chinesetraders and from there it spread toEurope. Paper making was revolutionaryin
the spread of knoledge and massproduction began.
The first continuos paper-making machine was developed in
France by louis Robert in 1798, At the start of nineteenth century, the
Fourdrinier brothers developed the idea further in London. Nowadays we produce
wood-tree paper in an attempt to limit the damage to our environment.
To day paper is very diserve,
there are many different papers: tissue, toilet paper, writing paper, carton,
paperboard, printing paper,...
Nowadays we produce wood-tree paper in an
attempt to limit the damage to our environment.
Beside improvement of paper,
environment issue in the production of paper are also of concern, because of
the process of producing paper uses a larger amounts of chemicals!!!!
Nguồn: Sưu tầm.
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