An Improved Manufacture of Superfatted Soap.
Year: 1891

page_text: Date of Application, 8th Dec., 1891
Complete Specification Left, 26th Jan., 1892-Accepted, 27th Feb., 1892
.
PROVISIONAL SPECIFICATION.
An Improved Manufacture of Superfatted Soap.
I, CHARLES LEOPOLD FIELD of Upper Marsh, Lambeth, London, Soap and
Candle Manufacturer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to a manufacture of superfatted soap by the incorporation
with the soap material of milk, cream or butter from milk.
Superfatted soaps are at present produced either by saponifying fat with an
amount of alkali less than that chemically required for effecting complete saponifi-
cation; or by crutching an additional quantity of fat into a body of remelted normal
soap; or again, by milling into the dried and shredded soap, free fats, which may
be either glycerides or fatty acids.
According to my present invention I produce a superfatted soap, by adding to a
Boap that has been manufactured by what is known as the "cold process," namely
the simple stirring and crutching together of fat and alkali, as much cream as will
unite with any excess of alkali present and will leave an excess of cream.
I prefer
to effect such admixture of the cream at the moment at which the saponification of
the fat takes place, this being readily discerned by the rise in the temperature
which occurs at that time and by the transparent appearance which the paste
assumes. The said admixture can howeyer also be effected at any other period of
the manufacture, and the cream may also be added according to any of the other
methods of superfatting first above mentioned. Cream contains a large amount of
free acid with comparatively little glyceride; the reaction therefore takes place
with rapidity.
VINA
Although I prefer to use cream for the above purpose, milk or butter may also
be employed in lieu thereof.
Dated this 8th day of December 1891.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Manufacture of Superfatted Soap.
I, CHARLES LEOPOLD FIELD, of Upper Marsh, Lambeth, London, Soap
& Candle 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 :-
My invention relates to a manufacture of superfatted soap by the incorporation
with the soap material of milk, cream or butter from milk.
Superfatted soaps are at present produced either by saponifying fat with an
amount of alkali less than that chemically required for effecting complete saponifi-
cation; or by crutching an additional quantity of fat into a body of remelted
normal soap; or again, by milling into the dried and shredded soap, free fats which
may be either glycerides or fatty acids.
According to my present invention I produce a superfatted soap by adding to a
soap that has been manufactured by what is known as the "cold process" namely
the simple stirring and crutching together of fat and alkali, as much cream as will
unite with any excess of alkali present and will leave an excess of cream.
I prefer
to effect such admixture of the cream at the moment at which the saponification of
the fat takes place, this being readily discerned by the rise in the temperature
רנס ...D

page_text: which occurs at that time and by the transparent appearance which the paste
assumes.
The said admixture can however also be effected at any other period of the
manufacture, and the cream may also be added according to any of the other
methods of superfatting first above mentioned. Cream contains a large amount of
free acid with comparatively little glyceride; the reaction therefore takes place
with rapidity.
Although I prefer to use cream for the above purpose, milk or butter may also
be employed in lieu thereof.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Manufacture of superfatted soap by the incorporation with the soap materials
of milk, cream, or butter from milk in such proportions as to neutralise all alkali
and leave an excess of milk, cream or butter, substantially as described.
2. Manufacture of superfatted soap by effecting the admixture of milk, cream or
butter with the soap material at the moment when saponification takes place, and
in such quantity as to unite with any excess of alkali present and leave an excess
of milk cream or butter, substantially as described.
3. As a new manufacture, superfatted soap containing cream, milk, or butter
produced according to the methods referred to in the preceding claims.
Dated this 26th day of January 1892.
ABEL & IMRAY,
Agents for the Applicant.