Improvements in Printing on Velvet and other Fabrics or Materials, and Apparatus therefor.
Year: 1894

page_text: Date of Application, 8th June, 1891
Complete Specification Left. 2 th Feb., 1895-Accepted, 1st June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Printing on Velvet and other Fabrics or Materials,
and Apparatus therefor.
I, HUGO BOTSCHEN, of Kasernengasse 9, VI Vienna, Austria, Silk-ribbon
Manufacturer, do hereby declare the nature of this invention to be as follows:-
:―
This invention relates to a process and apparatus for the direct pressing or
printing, on velvets, cloths, felt, ribbons, leather, carpets, and other fabrics or
materials of designs in metallic i.e. bronze fast colours with the aid of moisture
and heat.
In all processes of the kind hitherto used it has been the custom as a preliminary
to press the pattern to which a suitable medium or vehicle has been applied, on the
material and then to employ the pulverized metallic or bronze colours which only
adhere to those places which have received the impression of the pattern. It is
obvious that this process wastes much time and is costly; furthermore that the
pattern always remains raised and crude, and the contours can never stand out
sharp and clear, while a considerable quantity of the colouring material is lost in the
form of dust; and finally, the process is dangerous to health as the atmosphere of
the work-room is always full of metallic dust.
If the pattern is to be printed in gold or silver leaf, the medium or vehicle is
laid with the leaf-metal upon the whole surface of the material, and thereafter only
is the pattern imprinted on the surface thus prepared. There is in this case also, a
great waste of time and material, the latter being of so much the more importance
because the material is more expensive. But the greatest defect of this process
consists in the fact that the slightest friction suffices to separate the colour from the
material.
In order to obviate all these drawbacks, and to be enabled quickly, in the
simplest and cheapest possible manner, to produce patterns with thoroughly sharp
outlines, which present every appearance of the pattern having been woven into
the material, I have designed the following process and apparatus..
The process consists in the application of the metallic or bronze colour to the
material by the wet method, for which purpose the said colour is first dissolved in
linseed oil varnish or jelly ("galatine"); such solution is poured or placed in a
trough, carried on the machine-frame, and the roller provided with the necessary
pattern-dies dips the latter into the contents of the trough. The material to be
treated is passed above the pattern-roller and between it and a pressure or paper-
roller, being pressed by the latter against the former with a force suited to its
nature. The pattern-roller is hollow and in order to ensure the durability or
"fastness" of the colour and to obtain thoroughly sharp outlines in the pattern it
is heated by gas to such a temperature that when touched with the damp finger a
hissing sound is perceptible.
The work proceeds continuously, as throughout, so long as the material is
unrolled and drawn through between the pattern-roller and the pressure roller, the
pattern is uninterruptedly impressed upon it, and with such force, sharpness and
durability that (as shown by repeated trials with the finished material) a separation
of the colour, even under the greatest friction, can never occur.
In this manner I obtain with the process above described, patterns not only
more finely printed, but also in fast colours and with more natural and truer tints

page_text: of the utmost brilliancy; and at the same time a technical procedure unattainable
by any of the processes hitherto known and used.
From the economical point of view, also, my process by far surpasses all others,
inasmuch as it does not involve even the smallest waste of material, and further the
manual labour required is limited simply to an occasional refilling of the trough,
and only when there is a change in the material for treatment, a preliminary
adjustment of the pressure exerted by the cylinder over which the material is
drawn.
For the carrying out of the foregoing process I employ a machine comprising a
trough containing the linseed oil varnish solution of the colour and filled to such
a height that the pattern-roller passing through it in the course of its revolution is
slightly but sufficiently moistened, a cylindrical pattern-roller carrying the pattern
on its outer surface or casing, which in this case must be sharply outlined so as to
stand out in bold relief, in order that the material may not be smeared or smirched
with the moist colour and that the contours of the pattern may be imprinted on the
fabric with perfect sharpness and clearness.
A gas supply pipe terminates in the interior of the pattern roller with a suitable
burner or burners adapted and serving to heat the said roller to the proper
temperature. The paper cylinder presses on the pattern roller to a variable extent as
provided for by any suitable means. A support or frame is provided on which the
finished fabric may be paid in folds.
Dated this 8th day of June 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
.
Improvements in Printing on Velvet and other Fabrics or Materials,
and Apparatus therefor.
I, HUGO BOTSCHEN, of Kasernengasse 9, VI Vienna, Austria, Silk-ribbon
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to a process and apparatus for the direct pressing or
printing, on velvets, cloths, felt, ribbons, leather, carpets and other fabrics or
materials of designs in metallic i.e. bronze fast colours, with the aid of moisture
and heat.
In all processes of the kind hitherto used it has been the custom as a preliminary
to press the pattern, to which a suitable medium or vehicle has been applied, on the
material, and then to employ the pulverised metallic or bronze colours which only
adhere to those places which have received the impression of the pattern. It is
obvious that this process wastes much time and is costly; furtherinore that the
pattern always remains raised and crude, and the contours can never stand out
sharp and clear, while a 'considerable quantity of the colouring material is lost in
the form of dust; and, finally, the process is dangerous to health, as the atmosphere
of the work-room is always full of metallic dust.
If the pattern is to be printed in gold or silver leaf, the medium or vehicle is laid
with the leaf-metal upon the whole surface of the material, and thereafter only is
the pattern imprinted on the surface thus prepared. There is, in this case also, a
great waste of time and material, the latter being of so much the more importance
because the material is more expensive. But the greatest defect of this process
consists the fact that the slightest friction suffices to separate the colour from the
material.

page_text: In order to obviate all these drawbacks, and to be enabled quickly, in the
simplest and cheapest possible manner to produce patterns with thoroughly sharp
outlines, which present every appearance of the pattern having been woven into
the material I have designed the process, and apparatus which I will now proceed
to describe with reference to the accompanying drawings wherein
Figure 1 is a front elevation of the apparatus constructed according to this
invention; and
Figure 2 is a central transverse section of the same.
The process consists in the application of the metallic colour to the material by
the wet method, for which purpose the said colour is first dissolved in linseed-oil
varnish or jelly ("galantine"); such solution is poured or placed in a trough,
carried on the machine-frame, and the roller provided with the necessary pattern-
dies dips the latter into the contents of the trough. The material to be treated is
passed above the pattern-roller and between it and a pressure or paper-roller, being
pressed by the latter against the former with a force suited to its nature. The
pattern-roller is hollow and in order to ensure the durability or "fastness" of the
colour and to obtain thoroughly sharp outlines in the pattern it is heated by gas to
such a temperature that, when touched with the damp finger, a hissing sound is
perceptible.
The work proceeds continuously, as throughout. so long as the material is
unrolled and drawn through between the pattern-roller and the pressure-roller the
pattern is uninterruptedly impressed upon it, and with such force, sharpness and
durability that (as shown by repeated trials with the finished material) a separation
of the colour, even under the greatest friction, can never occur.
In this manner I obtain, with the process above described, patterns not only
more finely printed, but also in fast colours and with more natural and truer tints
of the utmost brilliancy; and at the same time a technical procedure unattainable
by any of the processes hitherto known and used.
From the economical point of view, also, my process by far surpasses all others,
inasmuch as it does not involve even the smallest waste of material, and further
the manual labour required is limited simply to an occasional refilling of the trough,
aud, only when there is a change in the material for treatment, a preliminary
adjustment of the pressure exerted by the cylinder over which the material is
drawn.
For the carrying out of the foregoing process I may employ such a machine as
is shown in the drawings in which a indicates the trough containing the linseed-oil
varnish solution of the colour and filled to such a height that the pattern-roller,
passing through it in the course of its revolution is slightly but sufficiently
moistened bis the pattern-roller, cylindrical in form and carrying the pattern on
its outer surface or casing, which pattern in this case must be sharply outlined so
as to stand out in bold relief, in order that the material may not be smeared or
Bmirched with the moist colour, and that the contours of the pattern may be
imprinted on the fabric with perfect sharpness and clearness.
c is a gas supply pipe which terminates in the interior of the pattern-roller with
a suitable burner or burners adapted and serving to heat the said roller to the
proper temperature: d is the paper cylinder which presses on the pattern roller or
on the fabric between the two rollers to a variable extent as provided for by the
lever-system e in a manner which will be obvious from the drawings; f is the fabric
on which the pattern is to be imprinted, and g the support or frame on which the
finished fabric is laid in folds.
Having now particularly described and ascertained the nature of the said inven-
tiou, and in what manner the same is to be performed, I declare that what I
claim is ;-
"
1. A process for printing on velvets and other fabrics which consists in making
a mixture with "bronze colour or other colour and linseed oil varnish or
galantine" taking from a receptacle a supply of that mixture on heated rotatable
66

page_text: printing-surfaces and impressing it on the fabric by means of those surfaces whilst
the fabric and the surfaces are pressed together.
2. Apparatus substantially as hereinbefore described for use in a process such as
is set forth in Claim 1.
Dated this 28th day of February 1895
W. P. THOMPSON & BOULT,
Agents for the Applicant.