El Paso daily herald. (El Paso, Tex.) 1881-1901, 1900-05-18

shipments.
These and other efforts were based
on producing what was then called
"Canaigre Chips" q ton of these chips
being obtained by drying three tons of
the sliced green roots. Tanners and
chemists who tested these chips inva-
riably reported in high terms on their
use az a tanning agent, and the In
dustry appeared to grow, for beginning
in 1891 over 1000 carloads we're ship
ped from various points on the South
ern Pacific and Santa Fee railroads for
European points. These chips we're
sold delivered st prices running from
$50 90 to s65 90 per ton.
IMPROVED PROCESSES.
1t soon became apparent, however,
that more concentrated form of can
aigre product was required before the
industry could be made commercially
successful. Experiments by various
parties resulted, in 1892, in producing
a satisfactory canaigre extract, and
a factory was erected at DeminR, N.
NJ, to produce this extract. The
product turned out was q semi-e old
extract made from csnaigre roots,
having standard purity of 48 per
cent tannic acid. One ton OF this ex-
tract Was obtained from 4 80 tons of
green roots. The extract found great
favor with tanners. both in the United
States and abroad, and the entire out
put of the factory was sold Al prices
averaging five cents pound
delivered. More than 2. 600 600 pounds
was produced and sold in the Ameri-
can markets.
EXPERT OPINIONS.
The net result of many reports re-
Europe and America, shows that can
aigre is one of the very best OF tanning
agents. In q report on an exhibit OF
canaigre roots made at the Worlds
Fair, the juror OF tanning materials,
8. P. Curtis, says:
"After careful and thorough inves-
tigstion of all standard commercial
tanning materials, and the comparison
of the manufactured product OF can-
sigre Herewith, l am OF the opinion
that canaiRre contains d larger guam
tity of fannie acid, with less Injurious
substances than any other known
tanning material in use.
bout 80 Tests of various feathers
tanned with canaigre by different
man ufacturers disclose that leather
tanned with this material is much
stronger, more durable and flexible,
aud is affected less by heat and mole
Lure than that tanned by any other
material. 1t reduces the time OF tan
ping to at ;ast one-heli Lbat required
by other materials used in modern
tanning, and it contains a filing
property not found in any other tanning
The proprietor of an extensive tan
pery a. Woodstock, Canada, after ex-
perirnenting with cansigre says:
"Csnaigre, when produced in guam
titles, will replace gam bier in Europe |
and America because (A) 1t file bet |
ter; (B) 1t makes better leather alone:
(C) 1t barmoSizes or blends better
with other tanning agents than gam oi- |
err: (D) 1t gives better weight. strong
er fibre and leather, and will better !
suit the demands OF the shoe manufao
turers OF fine goods who want firmness,
good fibre, aud good color.''
Prof. Either, the head of the Vienna
Research station of the lesth er il dus-
try. says:
Last year U89D drew attention to
canaigre and pointed out its remarka-
bly, good value for upper feathers Since
then L have made careful tests with it
upon sole leather and here also 1 ino
10 OF great value, especially for dust
ink. 1t tans very rapidly sld maxes
the leather full without any brittle
substance. My tests are fully conirm-
ed in a larger way in this tsnnery."
VAST INDUSTRIAL POSSIBILITIES.
Il would seem that with the rapid
destruction of the oak and hemlock
forests in this country, the slime is not
far distant when tanners will have to
look elsewhere for a tanning product. |
More than 1000, 600 acres of oak and |
hemlock forest are being cut down in |
the United States alone each year, and !
nothing Is being done to replace this |
annual loss. Twenty to forty years |
are required to grow fair sized tree,
whilst in two years ss much tsnnin |
as would be contained in this tree may
De produced by csnaigre on q few yards
If land.
Hemlock bark furnishes at present the |
argest, as we'll as the oheapesr, supply |
If raw tanning ID Materials. A ton o! hem
ock bark furnishes about the same |
Quantity OF tannin as ton of Gala
gre roots, but the former coats more
han twice as much as ION of the |
after. Moreover, the cost of working
he hemlock bark into extract Is great
n than of canaigre.
OF CANAIG RE ITS COST