AN IMPROVED MANUFACTURE OF COLOURED MARKING INKS,
Year: 1883

page_text: LETTERS PATENT to James Hickisson, of Bond's Crystal Palace Ink Factory,
Southgate Road, in the County of Middlesex, Marking Ink Manufacturer, and
Hugo Waldemar Langbeck. of Leman Street, in the said County. Analytical
PROVISIONAL SPECIFICATION left by the said James Hickisson and Hugo
Waldemar Langbeck at the Office of the Commissioners of Patents on the
10th February 1883. .
JAMES HICKISSON, of Bond's Crystal Palace Ink Factory, Southgate Road, in
the County of Middlesex, Marking Ink Manufacturer, and HUGO WALDEMAR
LANGBECK, of Leman Street, in the said County, Analytical Chemist, AN IMPROVED
MANUFACTURE OF COLOURED MARKING INKS,
To manufacture our improved coloured marking inks, we first dissolve 1 part of
India rubber in about 25 parts of bi-sulphide of carbon, or other suitable solvent,
and 1 part of gutta-percha, in about 9 parts of bi-sulphide of carbon, or other
suitable solvent. We then clear these solutions by the application of carbonate of
lead, or carbonate of lime, and then decant them, and mix the same together in
equal quantities; the india rubber and gutta-percha being used to form of fixing
for the colouring matter. To this mixture we then add any suitable colouring
matter or compound till the desired shade or tint is attained, for instance, if a red-
marking ink is to be made, we add vermilion, in the form of a powder, alizarine,
together with a mordant, or other red or scarlet colouring compound; and if a blue
marking ink is to be made, we add ultramarine, or other suitable blue colouring
compound.
Or the solutions may be put up separately, and mixed together with the colouring
matter or compound, when desired to form the ink.
The gutta percha and india rubber may be dissolved together in the bi-sulphide
of carbon, or other solvent, in the proportion of 1 part india rubber and 2 parts of
gutta percha, in about 36 parts of bi-sulphide of carbon. To prevent the rapid
evaporation of the bi-sulphide of carbon we add an essential oil, preferably oil of
turpentine. It is, however, preferred to dissolve the india rubber and gutta percha
separately.
After marking or writing on cloth or other fabric, the said cloth or fabric should
be warmed until the ink
appears to darken.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Hickisson and Hugo Waldemar Langbeck in the Great Seal
Patent Office on the 10th August 1883.
JAMES HICKISSON, of Bond's Crystal Palace Ink Factory, Southgate Road, in
the County of Middlesex, Marking Ink Manufacturer, and HUGO WALDEMAR
LANGBECK, of Leman Street, in the said County, Analytical Chemist AN IMPROVED
MANUFACTURE OF COLOURED MARKING INKS
To manufacture our improved coloured marking inks we first dissolve 1 part of
India rubber in about 25 parts of bi-sulpide of carbon, or other suitable solvent,
and 1 part of gutta percha, in about 9 parts of bi-sulphide of carbon, or other
suitable solvent. We then clear these solutions by the application of carbonate of
lead, carbonate of lime, or plaster of Paris, and then decant them, and mix the
same together in equal quantities; the india rubber and gutta percha being used
to form a fixing for the colouring matter. To this mixture we then add any
suitable colouring matter or compound till the desired shade or tint is attained;
for instance, if a red marking ink is to be made we add to about 3 (three) parts of
this solution, one (1) part (more or less) of vermilion, in the form of a powder, or
alizarine (together with a mordant) or other red or scarlet colouring compound, and
then well shaken so as to intimately mix the ingredients. If a blue marking ink
is to be made we add to 6 (six) parts of this solution, 1 (one) part, more or less, of
ultramarine, or other suitable blue colouring compound, and then well shaken.
Or the solution may be put up separately and mixed together with the colouring
matter or compound when desired to form the ink.
The gutta percha and india rubber may be dissolved together in the bi-sulphide
of carbon, or other solvent, in the proportion of 1 (one) part india rubber and
2 (two and a half) parts of gutta percha, in about 36 (thirtysix) parts of
bi-sulphide of carbon. It is however preferred to dissolve the indiarubber and
gutta percha separately.
To prevent the too rapid evaporation of the bi-sulphide of carbon, we add an
essential oil, preferably oil of turpentine, and to remove any offensive or obnoxious
odour from the composition, we add a suitable quantity of nitro-benzine.
After marking or writing on the cloth, or other fabric, the said cloth or fabric
should be heated until the ink appears to darken.
Having now described the nature of the said Invention and in what manner the
same may be performed, we declare that we claim,
1. The manufacture of coloured marking inks by adding to the colours employed,
a solution composed of india rubber and gutta percha dissolved in bi-sulphide of
carbon, or other suitable solvent, and in or about the proportions mentioned, for
the purpose of forming a fixing for the colours, substantially as herein described.
2. The combination of ingredients herein described and in or about the pro-
portions stated, for the purpose of manufacturing coloured marking inks, in
conjunction with a base composed of a solution of india rubber and gutta percha,
to which an essential oil is added for preventing the too rapid evaporation of the
solvent used for dissolving the said materials constituting the base.
In witness whereof We the said James Hickisson and Hugo Waldemar Langbeck
have hereunto set our hands and seals this Eighth day of August in the year 1883.