Every evening, Wilmington daily commercial., 1922-09-18

washington, Sept. 1s.--SaVins o'o
now.napera that they may be useh
again in the manufacture OK heWs-
print may seem far removed from ,ns
problems OF forest CONSERVATISM pul
as a matter OF fact It Is directly CON
oected with the work In which the
Forest Service OF the United olo.ea
Department OF Agriculture ~ interest,"
ed. This branch OF the government
activities has recently been conduct
ing n series of experiments In oe-
linking process, and now announces
TINT II has been perfected and is prac-
ucoble.
About $500 tons OF old newspapers
can be gathered daily in the larger
cities Il is estimated. and turned IN
TO ncwsprint by this process IN
terms Of forest acreage this means
roughly the saving OF the cut eacn
year on about $4,000 acres. ms
acreage carries crop not produced
In a year, but a spruce forest requir-
ing 100 years or longer 10 grow. Ihae
IL regarded as an important SAVING
In view OF the fact that the daily con
sumption Of newsprint in the United
States ia approximately 1000 tons.
In its modern development the pro-
duction Of newsprint depends upon
the forest for its raw material. Inc
present supply, coming largely from
mills I'm the northeast and lake states
Ia derived from forests In the United
States now seriously depleted, or from
| less accessible forests in Canada. Inc
latter now furnishes SIS per cent OF the
raw pulp used by mills in this country
Many Of these mills, representing
immense Investments, no longer nave
a supply Of raw material Of their own
but are dependent either on a foreign
supply of pulp, or on pulpwood tna'
must be hauled long distances In tne
United States. Some Of these mills
have their own supply for only 10 OF
20 years in advance, and but one mn
Is known that has a supply. strictly
its own, that Is good for more thar
half n century. The increasing dis
tancea to the fast receding forest
! mean added freight costs and a higne'
priced product, while hanging owe
mills operating on imported pulp i
the ever-present possibility OF EN-
barge. even now far from theoret'
cal menace. Thus the incentive {
' the development OF a de-inking pro
cess is apparent.
!, Has Been Tried For Centuries.
The use Of old paper stock for tn
n manufacture OF paper is very old an
n we find mention of a process in Der
mark az early as 1895. Seventy year
o later German chemists were exper
q nenting in that direction. and In 179
= during the French revolution. Citizs
Mason, q woman, conducted an e.
/. tablishment for the conversion Of
+ papers into new. IN 1901 Mathis
:. Hoops established the Neckinger NJ
# at Bernnondsy. England, TO de-ir
0 printed papers and make new pap
a therefrorn. and In 1s49 Henry
Rogers, in a mill near Hartford. Col
)? necticut, made the first use In q
:. United States of old papers in Il
Il manufacture of paper.
It Ia only in recent years, howeve
e that It has been realized that It won
not only De kOOd DuSluc5S " 1~AAAZo "a
9. enormous waste represented IN prin
h ed paper. but was an absolute nece
1t sity If the consumption Of newspri
IF continued to grow and the supply
spruce timber to diminish.
f. Early in 1921 the Forest Produc
R. Laboratory OF the Department of Agl
D. culture undertook a series of col
lie parative tests to determine the ef
Ct cheney Of a process using bentonite
accomplish the heretofore almost il
possible task of washing all the ca
bon black out OF the macerated pu
after 1t has been loosened by alkali
:. S. D. Wells, the engineer In charge
the experiments. now reports that tn
: were successful
"A I'm de-inking printed paper and .
m pecially newspaper" says Mr.. We
$ lit is comparatively easy 10 loosen I
carbon black by dissolving the warm