Year: 1897

page_text: Date of Application, 26th Oct., 1897
Complete Specification Left, 23rd July, 1898-Accepted, 27th Aug.,
1898
I, ELIAS WILCZYNSKI, of 1, Chaussee-strasse, Berlin, N., in the German Empire,
Dealer in Chemicals and Drugs, do hereby declare the nature of this invention
to be as follows:-
-
Calcium soap, being an insoluble product, is not capable of any useful applica-
tion as washing soap or the like.
This invention has for its object to manufacture a soap directly by means of
lime and to nevertheless produce a soluble calcium soap, which, on account of
the simplicity of its manufacture and by reason of its quality, possesses prac-
tical advantages over the alkali soaps heretofore generally employed.
Experiments, which have been made on the use of soda in the saponification
of fats with lime, have given no satisfactory result. There is formed an un-
sightly soap containing lime, which soap, by reason of the lime it contains, acts
imperfectly when in use in contact with water, since then, from a somewhat
soluble soap, insoluble calcium soap is again immediately formed.
Further experiments showed, however, that, in contradistinction to the above,
it is nevertheless possible, by the aid of a particular sodium compound, when
saponifying with lime, to obtain a soluble soap which at the same time has the
advantage of being practically useful, this being effected by means of fluoride
of sodium.
For making a soap of this kind, the calculated amount of lime, in the form
of milk of lime, is preferably first added to the fat (for example, tallow, palm-
kernel oil, etc.) with continued stirring, and the whole heated until the insoluble
calcium soap is obtained; then to each 4 parts by, weight of the lime employed,
6 parts by weight of fluoride of sodium (which is previously dissolved by boiling
and constant stirring) are poured onto the calcium soap and the soap heated
until it is ready. The proportions of the several ingredients given and also the
method of working can obviously be modified according to the materials em-
ployed, etc.
The soap so produced possesses, over the soaps heretofore used, a high degree
of unctuousness and an increased cleansing power, so that the use therewith of
caustic cleansing materials, such as chlorine, which attack the articles washed,
is unnecessary; it acts gently on the skin and has a highly antiseptic effect.
A regeneration of insoluble calcium soap does not occur when the soap is used,
such as is produced when soda is employed in an analogous manner to the
fluoride of sodium.
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: The Manufacture of an improved Soap.
I, ELIAS WILCZYNSKI, of 1, Chaussee-strasse, Berlin, N., in the German Empire,
Dealer in Chemicals and Drugs, 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: —
Calcium soap, being an insoluble product, is not capable of any useful applica-
tion as washing soap or the like..
This invention has for its object to manufacture a soap directly by means of
lime and to nevertheless produce a soluble calcium soap, which
on account of
the simplicity of its manufacture and by reason of its quality, possesses prac-
tical advantages over the alkali soaps heretofore generally employed.
Experiments, which have been made on the use of soda in the saponification`
of fats with lime have given no satisfactory result. There always forms, on
treatment of the calcium soap with the carbonate of sodium, a residue, which
contains the corresponding calcium salt. In this manner, consequently, the
known alkali soap is always obtained. Such an amount of lime makes the soap
unsightly and during use, as soon as it comes into contact with water, causes
an incomplete action, in any case, since then insoluble calcium soap again forms
immediately from a somewhat soluble soap.
Further experiments showed, however, that, in contradistinction to the above,
it is nevertheless possible, by the aid of a particular sodium compound, when
saponifying with lime, to obtain a soluble soap which at the same time has the
advantage of being practically useful, this being effected by means of fluoride
of sodium.
For making a soap of this kind, the calculated amount of lime, in the form
of milk of lime, is preferably first added to the fat (for example, tallow, palm-
kernel oil, etc.) with continued stirring, and the whole heated until the insoluble
calcium soap is obtained; then to each 4 parts by weight of the lime employed,
6 parts by weight of fluoride of sodium (which is previously dissolved by boiling
and constant stirring) are poured onto the calcium soap and the soap heated
until it is ready. The proportions of the several ingredients given and also the
method of working can obviously be modified according to the materials em-
ployed, etc.
The soap so produced possesses, over the soaps heretofore used; a high degree
of unctuousness and an increased cleansing power, so that the use therewith of
caustic cleansing materials, such as chlorine, which attack the articles washed,
is unnecessary; it acts gently on the skin and has a highly antiseptic effect.
This is based on the disinfecting power of the calcium fluoride which forms in
the soap in a state of extremely-fine subdivision. By reason of this extremely
fine subdivision in the weak alkaline solution, a greater solubility of the sus-
pended calcium fluoride is obtained and consequently also a greater disinfecting
power is produced than can be obtained by a mechanical mixture. A regenera-
tion of insoluble calcium soap does not occur when the soap is used, such as is
produced when soda is employed in an analogous manner to the fluoride of
sodium.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performéd, I declare that what
I claim is:-
-
A process of producing, by saponification with lime, a soap which is soluble in

page_text: water, remains soluble in use, acts as a disinfectant, and is of excellent quality
and adaptability, in which process the saponification of the fat to be treated is
effected by the aid of fluoride of sodium.
D. YOUNG & Co.,
11 & 12, Southampton Buildings, London, W.C.,
Agents for the Applicant.