Improved Ink or Material for Printing and similar Purposes.
Year: 1896

page_text: Date of Application, 31st Dec., 1896
Complete Specification Left, 30th Sept., 1897-Accepted, 18th Nov., 1897
PROVISIONAL SPECI GATION.
Improved Ink or Material for Printing and similar Purposes.
A communication from EDMOND MAÎTRE, of 19 Rue Jean Jacques Rousseau, Paris, in
the Republic of France.
I, ALFRED JULIUS BOULT of 111 Hatton Garden, in the County of Middlesex,
Chartered Patent Agent do hereby declare the nature of this invention to be as
follows:-
The present invention relates to a new product the use of which renders the
separate application of bronze powders in typographic and lithographic printing and
similar purposes unnecessary and enables gold and bronzes generally to be fixed on
the paper or other sheet in one printing operation. It is in fact a new ink the use
of which will advantageously do away with the double work of printing by varnish
and of applying powder by hand. It is well known that this latter operation
generally done by women or young girls is rightly considered unhealthy and that the
sanitary authorities are unanimous in pointing out its dangers and in demanding its
abolition which has not been able to be done hitherto owing to the want of a suitable
process to replace it.
The new product which will be called "direct-or" (direct gold) has the double
advantage of doing away with onerous hand-work and of avoiding work dangerous
from the hygienic point of view.
The manufacture of the new ink "direct-or" cousists in combining varnish and
oils chemically desiccated and amalgamated with bronze-powder either by grinding
or by means of a spatula. As an example 15 parts of cocoanut oil 40 parts of palm-
oil, 15 parts of laurel-oil, 10 parts of copal-varnish and 20 parts of Damar are used.
Before being mixed with bronze-powder this mixture is brought to the desired
consistency for printing.
The proportions and ingredients .given above may be varied according to the kind
of printing nature of paper and temperature.
Dated this 31st day of December 1896.

page_text: manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
This invention seeks to avoid the necessity of applying gold and, bronze powders
to impressions when printing in bronze by using a new gold or bronze ink, which
enables typographic and lithographic impressions to be printed direct.
The manufacture of these new bronze-inks consists in combining mixtures of copal,
damar or karobi etc. varnish, and fixed oils chemically desiccated with bronze powder,
either by means of a spatula or by grinding, till a normal consistency and thorough
mixing is reached.
The proportions and description of the oils and resins employed will vary according
to the nature of the work, the paper on which the printing is to be done, the
temperature etc. The following is given merely as an example of the materials and
proportions which may be used:-
Cocoa-nut oil
Palm oil
Laurel oil -
Copal' varnish.
Damar
15 parts
40
15
"
"
10, "
20 "
The new product used for direct bronze printing either,, with types or,,blocks,
lithographic printing and similar purposes, may be modified by adding to the
ingredients hereinbefore described, oleaginous varnish, animal and mineral fats, either
mixed together with or substituted wholly or in part for the above ingredients,.
according to the nature of work to be done..
Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondent and in what manner
the same is to be performed, I declare that what I claim is :-
1. A printing ink or material consisting of a combination of varnish and oils,,
chemically desiccated, with gold or bronze powder, substantially as described.
2. A printing ink or material consisting of gold or bronze powder and a mixture of
cocoa-nut oil, palm oil, laurel oil, copal varnish and damar, in, substantially the a
proportions described.
Dated this 30th day of September 1897