The weekly Iberian. (New Iberia, La.) 1894-1946, 1917-07-14
HOW PAPER IS MADE.

maue Dy DaDd, ana the Chimes,
were the first 10 make 1t from tn,
wool OF the cotton plant. Cottor
paper first became available fo
the world at the beginning of tn,
eighth century. The first mentor
of rag papers being manufactured
occurred 1122.5O A. d., aud liner
papers made their appearance il
the fourteenth century, when pa
permakiDg at length became a yer
liable European industry.
The process of making ground
wood, discovered IN 1S41, caused
quite q revolution in the manufac.
ture of paper, as up to that time
rags only had been used, aud in
the invention, in 1864 Of making
sulphite pulp from wood, caused
an important Innovation, as it
brought down the price of print
Ing paper more than one half
Paper was entirely made by
hand up to the year 1908, the pa
per machine being invented at
that time.
There are many kinds of paper,
but for purposes Of comparison it
may be well to divide them into
three classes, namely; writing pa
per, printing paper, and wrapping
paper.
Writing paper, which includes
bond paper. linen paper, and
ledger paper, are made from rags,
rags and sulpbite mixed, and all
sulphite.
Printing paper are made from
bleached wood sulphite, unbleaoh.
cd wood sulphite, some rags and
old papers.
Snlphite is pulp made from
wood, bleached sulphite being the
best quality. Bleached sulphite
pulp ls made: first, by breaking
the logs into small chips, dumping
into huge watts, and then cooked
from l2 to Is hours After being
cooked it goes to the tubs to be
mixed and beaten into smaller
fbres, aud is then run through q
machine which forms it into thick
sheets, and 1t is now ready to be
sent to the paper mill to be made
into fair grades of writing and
printing papers.
Unbleaohed sulphite pulp ia
cooked q to 8 hours, but not
bleached, and is used In the manu-
facture of cheaper papers, or can
be slightly mixed with the bleach
cd sulphite, to cheaper an other
wise bic ached sulphite paper.
Sulphate pulp ls cooked for only
q short period Of time, and is used
in the manufacture of the cheap
papers, such as wrapping.
Ground wood, the cheapest pulp
made from wood, goes largely into
the manufacture Of news print pa
per.
Rags and sulphite are mixed to
a certain degree in all medium
grades Of writing papers, depend
ing on how good the paper IL to
be, or price to be obtained for IT,
and only Ia the higher grade pa
pers are rage solely used.
Linen rags are used 70 make
only the best and highest grades
Of papers, such az bond linen, and
ledger paper, wedding papers and
bristols, where strength, dnrabili
ty and appearance are the essen
tial features.
Now that we have the different
kinds Of pulp from which paper is
made well IN mind, we can go to
the paper mill and watch the max.
ing Of the paper itself. The rags
or the pulp, depending on the
grade Of paper to be manufacture
ed, must 60 to the tubs frst and
there beat for 10 TO 20 hours until
the whole mass has been reduced
to watery substance. has been
sized with resin and alum treated,
and 1t IL now run into the chests
Of the paper machine, flows
through a strainer, spreads itself
on y thin film, and, when suffici
ently dried, passes through rollers
where 1t receives the first pressure,
then over steam heated cylinders.
which give u gloss to the web of
paper, and finally to the end OF
where Il Is given q final
tinlsh with the calendars, and then
wound onto rolls. IL IL now
ready to be sent to market In rolls
DR. cut into sheets as ordered. -
fNs