United labor bulletin., 1911-01-19

this process with the paper in the dry
condition. That is to say, the necessity
of passing the paper through a chemical
solution Immediately before printing is
dispensed with. To secure this end tn
chemicals are associated with the paper
at the pulp mills. In this direction the
inventor could not find a paper maker
sufficiently enterprising to participate in
these experiments, so accordingly he ac
quired small mill where he pursued his
hunt in absolute privacy, accompanying
this with elaborate Investigation in the
solitude of his own laboratory. Now it
is possible to prepare the rolls of paper
in illimitable quantities impregnated
with the necessary chemicals, and in
such way that the paper can be stored
indefinitely without suffering the slight
est deterioration.
For heliochromatic printing the inven-
ton is of far reaching consequence The
impressions are made in instantaneous
succession, the paper obv ously being
impregnated with the necessary chem
icals to bring about the desired result
in conjunction with certain metals. Thus,
for instance. the block designed to give
the yellow impression is made of zinc,
that for the red of brass, and the blue
of copper. Other commercial metals.
such as tin, iron, silver, platinum, gold
and so on. will give in conjunction with
certain chemicals. distinctive colors with
infallible accuracy and certainty.
The task of the printer is very appre-
ciably facilitated and there is a conspicu-
Gus saving in cost, time and labor. All
preliminary preparations technically
known as making ready are obviated,
| for wherever there is a clear contact be-
tween the metal and the paper an i'm
preston must be secured. The printing
process itself is SO simple that boy
can do it. The simplifcation of the ma
cnine itself. whether it be of the intri-
cate mammoth rotary newspaper type or
the small cylindrical fiat bed machine
brings about coincident diminution in
the call for skill. In this case, however,
it is not necessary to scrap existing ma
chimes as such can be readily and mex
pensively adapted to the new process.
Printing, although already carried out at
high speeds. can be very appreciably ac-
CELEBRATED, the speed factor being entire
ly dependent upon the strains which the
paper itself can sustain in rushing
through the machine.
Apart from the mere printing question
the electrical system is of considerable
economic Importance and value In the
first place there is the saving effected in
regard to the ink rollers which in them
selves constitute a formidable item.
then secondly it solves the waste"
problem in a very complete manner. I'm
der existing circumstances the waste
from the machines. as well as the 'tre-
turns" is of little commercial value The
ink cannot be eliminated in re-pulping
and completely defies all known bleach
| ing processes. Such repulped waste can
thus only be converted into a cheap
grade OF paper for general packing pur-
| poses. In the case of the electrical sys-
/ TEN. however. as there is no deposit on
the paper, the waste can Oe repulped and
/ Te-made up again into the same kind OF
article it was in the first place. the oxida-
ton OF the chemicals caused by the cleo
| tric current being easily and cheaply re
movable especially by an electrolytic
bleaching method the inventor has de
vised. This paper can be used over and
I over again
Experiments have shown that it is
equally applicable to printing patterns
and designs on textile fabrics. In this
Instance the material is simply impreg-
mated with the requisite chemicals which
in themselves do not exercise any dele
terious effect upon the most delicate fab
RIGS. Wall papers and other decorative
materials can also be printed by this
process and it can be so devised as to
print and emboss at the same time.
Another striking evidence of its possi-
bility was afforded the writer. This was
in connection with photogravure print
ing The largest pictures can be repro
duced by this means, including the plate
sunk mark, and the depth. softness of
the tones and other characteristics Incl
dental to this class of printing. can be so
beautifully obtained that the electrical
inkless reproduction cannot be distin-
guished from the ordinary hand pulled
I impression with ink. unless il is in re
gard to the enhanced softness and
beauty of the picture. Instead of the
Il nrin Ia ftf11 in l.
/ ing and preparing the plate. all that is
necessary is to lay the sheet of paper
beneath the plate and then apply the
pressure in the ordinary manner after
the electrical connections have been af-
fected. The whole operation only occu-
pies a second and the speed of printing
is governed entirely by the speed with
which the paper can be fed into the ma
chine.
| At first il might be thought that con-
siderable wear and tear to the metallic
, substance from which the impression is
made. be il either type or block. would
result, but such is not the case. The
wear and tear is not so great as in ordi-
nary printing and no electro,ysis takes
4 place Then again 1t might be thought
/ that the consumption of current might be
| so high as 10 offset the saving in ink
hut here again there is distinct disillu-
sion. An ordinary small printing ma
chine such as is employed for printing
circulars can reel of its work at less
tnan half cents worth of electricity
! from a sixteen candle power lamp. per
hour. Control is very simple comprising
merely switch and a new type OF grad
ual resistance which the inventor has
! especially devised for the work to in
vDI