IMPROVE- MENTS IN THE MANUFACTURE OF DECORATING PAPERS
Year: 1882

page_text: LETTERS PATENT to John Imray, of No. 28, Southampton Buildings,
Chancery Lane, in the County of Middlesex, for an Invention of "IMPROVE-
MENTS IN THE MANUFACTURE OF DECORATING PAPERS." A communication
from abroad by Alexandre Cottais, of La Société Generale de Lithopeinture,
of Paris, in the Republic of France.
PROVISIONAL SPECIFICATION left by the said John Imray at the Office
of the Commissioners of Patents on the 28th January 1882.
JOHN IMRAY of No. 28 Southampton Buildings Chancery Lane in the County
of Middlesex. "IMPROVEMENTS IN THE MANUFACTURE OF DECORATING PAPERS."
[A communication from abroad by Alexandre Cottais, of La Société Generale de
Lithopeinture, of Paris, in the Republic of France.]
This invention relates to a process for the manufacture of papers with designs
for the decoration of walls and other surfaces. For this purpose the paper is
covered with a layer of fixed white made up with solution of gum arabic. On
this an impression is made with colored fatty ink the white serving to absorb the
excess of liquid and accelerate the drying of the ink. When the ink is dry the
surface is served with insoluble varnish which presents a continuous surface and
fixes the colors applied thereto There is then glued on the varnish thin unsized
paper. The paper which had received the impression is then moistened and it
becomes detached whereupon the surface of the fixed white from which it is
separated is washed and thus the design presents itself inverted on a paper which
is not that on which it was originally imprinted this having been removed. When
a colored ground is desired color may be now applied. The paper thus prepared
can now be applied to the surface to be decorated. This is done by serving the
surface such as that of a wall and the design on the side opposite to that of the
paper with a mixture of fat varnish with a little essential oil; and laying the design
on the surface leaving it to dry. The paper thus presented outside is moistened
and removed and thus the design is left re-inverted with its colors in their proper
order faced with the varnish.

page_text: According to a modified process there is spread by a brush or otherwise over
peeling paper a layer of solution in water of 25 per cent of glucose and 75 per
cent of gum arabic which is left to dry, and thereon is spread a layer of lac
varnish. When the varnish is dry the design is printed on it in colors by surface
printing and in this condition the paper is ready for use. Before applying it to
the wall or other surface this surface should be rendered impermeable to moisture
by several coats of oil paint and rendered smooth and even; it is then served with
a flat varnish composed of gum lac and boiled linseed oil. When this becomes
sticky the paper is applied by a moist sponge the colored side next the wall varnish,
and the paper is moistened till it can be peeled off, after which the surface is washed
till the gum and glucose is removed The prepared paper may be thus applied
to fabrics, wood, sheet metal, glass and other surfaces and the design left may
afterwards be varnished.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Imray in the Great Seal Patent Office on the 25th July
1882.
JOHN IMRAY of No. 28 Southampton Buildings Chancery Lane in the County
of Middlesex. "IMPROVEMENTS IN THE MANUFACTURE OF DECORATING PAPERS."
A communication from abroad by Alexandre Cottais of La Société Generalo do
Lithopeinture of Paris in the Republic of France.
This invention relates to a process for the manufacture of papers with designs
for decoration of walls and other surfaces. For this purpose the paper is covered
with a layer of fixed white made up with solution of gum arabic. On this an
impression is made with colored fatty ink the white serving to absorb excess of
liquid and accelerate the drying of the ink. When the ink is dry the surfaco is
served with insoluble varnish which presents a continuous surface and fixes the
colors applied thereto. There is then glued on the varnish thin unsized paper.
The paper which had received the impression is then moistened and it becomes
detached whereupon the surface of the fixed white from which it is separated is
washed and thus the design presents itself inverted on a paper which is not that
on which it was originally imprinted, this having been removed. When a colored
ground is desired color may be now applied. The paper thus prepared can now
be applied to the surface to be decorated. This is done by serving the surface such
as that of a wall and the design on the side opposite to that of the paper with a
mixture of fat varnish with a little essential oil and laying the design on the
surface leaving it to dry. The paper thus presented outsido is moistened and
removed and thus the design is left re-inverted with its colors in their proper order
faced with the varnish.
According to a modified process there is spread by a brush or otherwise over
peeling paper a layer of solution in water of 25 per cent of glucose and 75 per
cent of gum arabic which is left to dry, and thereon is spread a layer of lac
varnish. When the varnish is dry the design is printed on it in colors by surface
printing and in this condition the paper is ready for use. Before applying it to
the wall or other surface this surface should be rendered impermeable to moisture
by several coats of oil paint and rendered sinooth and even, it is then served with
a fat varnish composed of gum lac and boiled linseed oil. When this becomes
sticky the paper is applied by a moist sponge the colored side next the wall varnish,
and the paper is moistened till it can be peeled off, after which the surface is washed
till the gum and glucose is removed. The prepared paper may be thus applied to
fabrics, wood, sheet metal, glass and other surfaces and the design left may
afterwards be varnished.
Having thus described the nature of the said invention and in what manner the
same is to be performed as communicated to me by my foreign correspondent,
I hereby declare that I make no general claim to the transferring of a design in
color from the surface on which it is printed to another surface on which it appears
inverted, but I claim :
First. The herein described process of double transfer according to which the
design is first transferred to suitably prepared paper and afterwards transferred to
the surface which it is intended to decorate, whereon after removal of the paper it
appears without inversion.

page_text: Second. Preparing the paper for impression of the design by a layer of white to
absorb excess of ink.
Third. Preparing the paper for impression by a layer of glucose gum arabic and
varnish, substantially as herein described.
In witness whereof I the said John Imray have hereunto set my hand and
seal this Twenty fifth day of July in the year of our Lord One thousand
eight hundred and eighty two.
JOHN IMRAY. (L.S.)