Improvements in the Manufacture of Soap.
Year: 1890

page_text: Date of Application, 21st July, 1890
Complete Specification Left, 21st May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Soap.
I, JOHN BAPTISTA, of 26 South Third Street, Philadelphia, in the County of
Philadelphia and State of Pennsylvania, United States of America, Inventor, do
hereby declare the nature of this invention to be as follows:-
My invention relates generally to soap making and particularly to the treatment
of certain compounds, whereby mineral oils may be used in making the soap.
Heretofore, mineral oils could not be used in the manufacture of soap but by
my process I am enabled to utilize a large percentage of mineral oil and produce
a soap that is cheap and of excellent quality.
The principle of my invention is to utilize mineral oils by so compounding them
with other agents that the mixture will readily emulsify with the usual alkaline
saponyfying compounds and produce an article which is cheaper and very little
harder than one made from animal or vegetable compounds.
In carrying out my process, I employ mineral oil of suitable density, color, etc.
and mix the same with rosin, rosin oil, or crude turpentine, preferably the latter,
whereby a compound is formed, which, when added to a boiling saponyfying mass
will readily emulsify and combine with the said mass owing to the affinity of the
resinous products for the alkalies, thus forming a soap in which the mineral oil is
thoroughly incorporated with the other ingredients.
The details of my process are as follows:-
Waste oils, neutral oil, or paraffine oil are all equally well adapted for this
process. White rosin is first washed in alkali made from caustic soda and mixed
with the same until it reaches a gummy or jelly state. This jelly is then mixed
with cottonseed oil in the proportion of one pound, more or less, of rosin, to each
gallon of cottonseed oil. This mixture of cottonseed oil and rosin jelly is boiled
to thoroughly unite the same. The paraffine oil or slops is then heated and
mixed with the compound of cottonseed oil and rosin jelly in the proportion of
one half gallon to the barrel and a half pound of chloride of lime dissolved in a
little water, is added to every twenty barrels of the soap stock mixture before
described. If it be desired to sweeten in taste and smell, a small quantity of
sassafras oil is added, say one half pint.
The above prepared mixture carrying the mineral oil is now ready to be
introduced into the saponifyer and when the greases and alkalies are boiling, the
stock is added from time to time until at least twenty-five per cent. to thirty-
five per cent. of the whole mixture in the saponifyer consists of the stock prepared
by my process. The stock containing the resinous compounds will form a thick.
emulsion with the alkalies and carrying therewith the mineral oil, thus incorporating
a large percentage of mineral oil into the soap.
Dated this 21st day of July 1890
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Soap.
I, JOHN BAPTISTA, of 26 South Third Street, Philadelphia, in County of
Philadelphia and State of Pennsylvania, United States of America, Inventor,
do hereby declare the nature of this invention and in what manner the same is to
[Price 4d.]

page_text: be performed, to be particularly described and ascertained in and by the following
statement :-
My invention relates generally to soap making and particularly to the treatment
of certain compounds whereby, mineral oils may be used in making the soap.
Heretofore, mineral oils could not be used in the manufacture of soap but by
my process I am enabled to utilize a soap that is cheap and of excellent quality.
My invention consists in the steps and substeps hereinafter referred to and claimed
and my invention consists also in the article produced by my new process.
The principle of my invention is to utilize mineral oils by so compounding them
with other agents that the mixture will readily emulsify with the usual alkaline
saponifying compounds, and produce an article which is cheaper, and very little
harder than one made entirely from animal or vegetable compounds.
In carrying out my process, I employ mineral oil of suitable density, color etc.
and mix the same with rosin, rosin oil or crude turpentine, preferably the latter,
whereby a compound is formed, which, when added to a boiling saponifying mass
will readily emulsify and combine with the said mass owing to the affinity of the
resinous products for the alkalies, thus forming a soap in which the mineral oil is
thoroughly incorporated with the other ingredients.
The details of my process are as follows: Waste oils, neutral oil, or paraffine
oil are all equally well adapted for this process. White rosin first washed in
alkali made from caustic soda and mixed with the same until it reaches a gummy
or jelly state. This jelly is then mixed with cottonseed oil in the proportion of
one pound, more or less, of rosin to each gallon of cottonseed oil. This mixture
of cottonseed oil and rosin jelly is boiled to thoroughly unite the same. The
paraffine oil or slops is then heated and mixed with the compound of cottonseed
oil and rosin jelly, in the proportion of one-half gallon to the barrel, and a half
pound of chloride of lime dissolved in a little water, is added to every twenty
barrels of the soap stock mixture afore-described. If it be desired to sweeten in
taste and smell, a small quantity of sassafras oil is added, say one-half pint.
The above prepared mixture carrying the mineral oil is now ready to be
introduced into the saponifyer and when the greases and alkalies are boiling, the
stock is added from time to time until at least 25 per cent. to 35 per cent. of the
whole mixture in the saponifyer consists of the stock prepared by my process.
The stock containing the resinous compounds will form a thick emulsion with the
alkalies, and carrying therewith the mineral oil, thus incorporating a large per-
centage of mineral oil into the soap.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The herein described process of making soap which consists in mixing with
the usual soap forming compounds, a mixture of mineral oils and resinous
compounds substantially as described.
2. The herein described process of making soap which consists in mixing with
the usual soap forming compounds, a mixture of a resinous compound, cottonseed
oil, chloride of lime, and mineral oil, all combined in the manner and proportions
set forth.
3. A step in the process of soap making, which consists in producing a rosin
jelly from white rosin and a caustic soda solution, mixing said jelly with cotton-
seed oil, and heating the mixture with a mineral oil and chloride of lime, in the
proportions and manner described.
4. An improved soap compound, consisting of the usual soap forming compounds
rnd a mixture of mineral oil and a resinous product, substantially as set forth.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.