Process for the Production of Odourless and Tasteless Water- and Air-tight Paper.
Year: 1899

page_text: Date of Application, 5th Sept., 1899
Ofiation Loft
27th Lon 1000 Accented 18th Aud
1000
PROVISIONAL SPECIFICATION.
Process for the Production of Odourless and Tasteless Water- and
Air-tight Paper.
I, ALOYS JOSEPH KÜPPERS, of No. 21, Münster Strasse, Bonn on the Rhine,
in the Empire of Germany, Student of Chemistry, do hereby declare the nature
of this invention to be as follows:-
The present invention relates to a process for the production of odourless and
tasteless water and air-tight paper, which enables any kind of paper to be ren-
dered perfectly water- and air-tight in a simple and inexpensive manner.
Paper prepared according to the present invention is primarely intended for
use with preserves in place of the hitherto employed parchment and similar
paper which is very costly and it may also be advantageously employed for pack-
ing purposes when exporting to foreign and transatlantic countries or for foreign
note-paper.
The process for preparing paper according to my invention consists in saturat-
ing the paper in a solution composed of: 500 grammes of boiled linseed oil, 70
grammes turpentine, 1 gramme colophony and 5 grammes paraffine. To obtain
this solution the linseed oil is first boiled with the turpentine and thereupon the
corresponding percentage of colophony and paraffine is added to the boiling
mixture. This being done a bag containing say 5 grammes of pulverised cloves
is suspended in the solution and left therein sufficiently long that no trace of
the disagreeable odour of the linseed oil can be detected and the solution emits
a slight scent. When still warm the solution is removed into a receptacle
The saturated paper
through which the paper to be saturated is conducted.
then reaches a frame and from there is conducted over a roughened felt roller
which removes the superfluous oil. It is advantageous to conduct the paper
through the impregnating solution three times and treat it in the manner above
described. When perfectly dry the thus prepared paper is travelled between
two rollers or plates coated with pulverised soap-stone. Hereby all traces of fat
are removed from the surface of the paper and same is rendered perfectly smooth,
the paper being afterwards conducted over a brush or felt roller to remove the
pulverised soap-stone which adhered thereto. This treatment of the paper being
accomplished the paper is ready for immediate use.
Paper prepared according to my above described process is water-proof in a
very high degree so much indeed that it takes a plurality of days for the water
to penetrate same.
1
C Contambar 1899

page_text: COMPLETE SPECIFICATION.
Process for the Production of Odourless and Tasteless Water- and
Air-tight Paper.
I, ALOYS JOSEPH KÜPPERS, 21, Münsterstrasse, Bonn on the Rhine, in the
Empire of Germany, Student of Chemistry, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement :-
=
The present invention relates to a process for the production of odourless and
tasteless water and air-tight paper, which enables any kind of paper to be
rendered perfectly water- and air-tight in a simple and inexpensive manner.
Paper prepared according to the present invention is primarely intended for
use with preserves in place of the hitherto employed parchment and similar
paper, which is very costly, and it may also be advantageously employed for pack-
ing purposes when exporting to foreign and transatlantic countries and for
foreign note-paper.
The process for preparing paper according to my invention consists in saturat-
ing the paper in a solution composed of: 500 grammes of boiled linseed oil,
70 grammes turpentine, 1 gramme colophony and 5 grammes solid paraffin. To
obtain this solution the linseed oil is first boiled with the turpentine and there
upon the corresponding percentage of colophony and paraffin is added to the
boiling mixture. This being done a bag containing say grammes of pul-
verised cloves is suspended in the solution and left therein sufhciently long that
no trace of the disagreeable odour of the linseed oil can be detected and the solu-
tion emits a slight scent. When still warm the solution is removed into a recep-
tacle through which the paper to be saturated is conducted. The saturated paper
then reaches a frame and from there is conducted over a roughened felt roller
which removes the superfluous oil. It is advantageous to conduct the paper
through the impregnating solution three times and treat it in the manner above
described. When perfectly dry the thus prepared paper is conducted so as to be
pressed upon by two rollers or plates coated with pulverised soap-stone. Hereby
all traces of fat are removed from the surface of the paper and same is rendered
perfectly smooth, the paper being afterwards conducted over a brush or felt
roller to remove the pulverised soap-stone which adhered thereto.
Paper prepared according to my above described process is waterproof in a
very high degree, so much indeed that it takes a plurality of days for the water
to penetrate the paper.
After the paper has been saturated a plurality of times with the solution of
linseed oil and the corresponding additions as herein before set out, the paper
being dried after every saturation, it is painted by means of a brush or in any
other mechanical way with a solution prepared by treating 150 grammes of
bleached white shellac with a liter of 96% spirit in such a manner, that sufficient
spirit is added to the shellac to dissolve the latter This dissolving is effected
by heating the shellac mixed with the spirit over a closed fire and, after the
shellac is completely dissolved, the remainder of the one liter of spirit is added
whilst simultaneously stirring the mixture. To this mixture are added 150
grammes of benzoin tincture which must contain 90 to 96% spirit. With the
composition thus obtained the paper is first painted on one side and dried, and
thereupon the same treatment is accorded to the other side. When both sides
are once painted and dried, the painting of the paper with the composition is
repeated, whereby a paper results which can serve a multitude of purposes.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
Process for the production of odourless and tasteless water- and air-tight paper,
consisting in treating the paper in a solution of 500 grammes of boiled linseed
oil, 70 grammes turpentine, 1 gramme colophony and 5 grammes solid paraffin
into which solution 5 grammes of pulverised cloves in a bag are suspended, the
paper being immersed in this solution three times and after drying treated by
means of pulverised soap-stone and painted on both sides with a solution, sub-
stantially as and for the purposes set forth.
Dated thi. 04th day of Iona 1900
B. REICHHOLD,
International Patent Office,
24, Luisen Strasse, Berlin, N.W., Germany,
Agent for the Applicant.