River Falls journal. [volume] (River Falls, Pierce County, Wis.) 1872-2019, 1893-03-02
nos PAPER IS MADE.
Ordinary News Paper IL Composed OF Woo
with slight MIXTURE of Rags

Ordinary News Paper Is Composed OF Wood
with a Slight Mixture of Rags.
In describing the process of paper
making il may be well first TO detail
the methods employed in the manu-
faeture of news paper. The materials
used in its manufacture are a combina-
ton of bi-sulphite, or chemical wood
pulp, rags and ordinary wood pulp
the latter being known principally as
mechanical pulp. The first named
article, bi-sulphite pulp, is made by a
combination of chemicals acting upon
wood, which produces a pulp possess
ing great toughness, and it is used in
combination with the rags and
mechanical pulp in the manu-
facture of news paper for the
purpose of adding to its strength
and durability. The process of
manufacturing this chemical pulp is a
most intricate one, and is considered as
one OF the secrets of the trade. The
process of manufacturing mechanical
pulp is a very simple one, and is as fol-
lows.
The cottonwood from which Il is made
is received from the forests i'm regular
cordwood lengths. These sticks are
sawed into lengths of about eighteen
inches. They are then run through a
shaving-machine which takes off all
the bark and leaves the stick perfectly
clear. These sticks are then ready for
the grinders.
I he grinders have upper and lower
pockets into which these sticks of wood
are packed The wood is fed down
from these pockets into the grinding
stones, where it is ground into pulp.
There is a continual stream of water
running into the grinding-stones, and
this mixes with the wood as it is
ground, and the mixture flows into
large watts underneath the machines.
From these watts the mixture is pumped
up stairs and then rolled through ma
chine upon sheets, ready for use in
combination with the bi-sulphite and
rags in the manufacture of news paper.
The rags are subjected TO a more
elaborate treatment before they are
ready for use. They are first run
through cutter one or more times.
as may be deemed necessary. This
is to shred them as much as
possible. They are then placed in huge
watts of lime-water and allowed to soak
for twenty-four hours or longer, i'm
order to soften them and remove all
harshness. After coming from these
sats they are placed in the bleaching
fluid, and when thoroughly saturated
with this fluid they are placed into
large tanks or watts, where they remain
long enough to become bleached white
and TO dry out 10 certain extent
The three articles. now being ready,
they are mixed in the proper proper
tions and run through what are termed
beating engines The bi-sulphite, the
rags and the mechanical pulp are
thoroughly mixed in these beating en-
gines, and while mixing the sizing and
coloring are put in. The mixture is
conveyed from the beating engines
through refining engines, and thence
into large watts, from which the paper
machine is fed.
The machine is nothing more nor
less than great manv rollers of vari-
Gus sizes, SO adjusted and arranged
that after the pulp mixture has passed
| through, around and between all these
various rollers il comes off in finished
state. wound upon hollow iron cores
ready for adjustment on perfecting
presses. The news paper intended for
use on other styles of presses is run off
from these rolls through cutting ma
chine, where it is cut into the Desired
sized sheets and packed ready for ship
ment.
The straw from which straw paper
is made is first soaked in lime water
the same as the rags. 1t is then sub
jected to the same treatment that the
mixture of bi-sulphite, rags and wood
pulp is for the manufacture of news
paper, after which it is conveyed to
watts from which the machine is fed
The straw and MANILA paper made by
the company is manufactured on a ma
chine capable of turning out sheet
fifty-two inches wide, the capacity be-
ing five tons per day. The MANILA pa
. per is made entirely of old rope, burlap,
etc. The material is first run through
! one cutter IN the same manner that the
rags are, after which 1t is subjected to
: before it - ready for the paper ma
chine. The machine upon which the
news paper is made has a capacity of
SIX tons per day and turns out sheet
eighty-siS inches in width About
three thousand cords of wood per an
mum are used by the mills in the man
ufacture of pulp alone. -Portland Ore
roniou