Improved Composition for Blacking and Dressing Leather.
Year: 1895

page_text: Date of Application, 8th Nov., 1895
Complete Specification Left, 10th Aug., 1896-Accepted, 3rd Oct., 1896
PROVISIONAL SPECIFICATION.
Improved Composition for Blacking and Dressing Leather.
We, DANIEL Z. Woods, and WILLIAM PLUNKET MACLAY, both of
Wurtsboro, Sullivan County, N.Y., U.S.A., Inventors, do hereby declare the
nature of this invention to be as follows:-
The object of this invention is to provide an improved leather dressing which,
when applied to the leather, will blacken the same, the composition being of such
a nature that the black will remain permanently upon the leather.
In making the composition we employ an ingredient which is known to the
"trade" as "Belgian black," the same being a colouring matter which is soluble
in oil and not in water, the black being dissolved and mixed in an oil so as to
permanently colour the same and enter the leather therewith.
In carrying out our invention we take one pound of Belgian black, thirty three
pounds of neats-foot-oil, thirty three pounds of tallow, and thirty three pounds of
petrolatum. The Belgian black is permanently incorporated with the oil by being
thoroughly dissolved therein.
"Belgian black" consists of fatty matter and a colouring substance, the fatty
matter being stearic acid (commercial) and the colouring substance nigrosine.
The nigrosine is ground up in the process of manufacture with the warm and
softened stearic acid. Belgian black” may be further described as a nigrosine
colouring matter ground in fat acid.
65
Petrolatum, which we use as an ingredient of the composition, is a fatty semi-
solid mixture of paraffin hydrocarbons and is obtained by distilling off the lighter
and more volatile portions from petroleum and purifying the residue.
The proportions of the ingredients may be varied, as when it is desired to make
a paste rather than a liquid dressing, more or less tallow can be added.
Dated this 8th day of November 1895.
Improved Composition for Blacking and Dressing Leather.
We, DANIEL Z. WOODS, and WILLIAM PLUNKET MACLAY both of
Wurtsboro, Sullivan County, N.Y., U.S.A., Inventors, 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 :-
The object of this invention is to provide an improved leather dressing which
when applied to leather will blacken the same, the composition being of such a
nature that the black will remain permanently upon the leather.
In making the composition we employ an ingredient which is known to the trade
as "Belgian black," the same being a colouring matter which is soluble in oil and
not in water, the black being dissolved and mixed in oil so as to permanently colour
the same and enter the leather therewith.
In carrying out our invention we take one pound of "Belgian black," thirty-
three pounds of neat's-foot-oil, thirty-three pounds of tallow, and thirty-three

page_text: pounds of petrolatum. The "Belgian black" is permanently incorporated with
the oil by being thoroughly dissolved therein.
Belgian black consists of fatty matter and a colouring substance, the fatty
matter being stearic acid (commercial) and the colouring substance nigrosine.
The nigrosine is ground up in the process of manufacture with the warm and
softened stearic acid. Belgian black may be further described as a nigrosine
colouring matter ground in fat acid.
Petrolatum, which we use as an ingredient of the composition, is a fatty semi-
solid mixture of the paraffin hydrocarbons, and is obtained by distilling of the
lighter and more volatile portions from petroleum and purifying the residue.,
The proportions of the ingredients may be varied, as when it is desired to make
a paste rather than a liquid dressing more or less tallow can be added.
This composition is designed especially to be used as a harness-oil and dressing,
and may also be used for blackening leather, as. for example russet or tan leather,
and when applied the leather becomes a permanent black and the colouring will
not come off. The composition can be applied to fine leather goods for personal
wear as well as to harness.
•
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
(1) A leather dressing and colouring made up of neat's-foot-oil, tallow, petrolatum
and a nigrosine colouring matter ground in fat acid, for the purpose set forth:
(2) A leather dressing or colouring made up of one part of "Belgian black,"
or nigrosine colouring matter ground in fat acid, thirty-three parts of neat's-foot-
oil, thirty-three parts of tallow, and thirty-three parts of petrolatum, substantially
as set forth.
Dated this 8th day of August 1896
W. H. MUNNS,
Agent for Applicants.