The Manufacture of Dry Compounds or Mixtures for Making Effervescing Mouth Lotions or Washes.
Year: 1890

page_text: Date of Application, 21st June, 1890
Complete Specification Left, 18th Mar., 1891-Accepted, 18th Apr., 1891
PROVISIONAL SPECIFICATION.
The Manufacture of Dry Compounds or Mixtures for Making
Effervescing Mouth Lotions or Washes.
I, PAUL PETZOLD, of Schvigiswalde, Saxony, German Empire, Apothecary, do
hereby declare the nature of this invention to be as follows:-
Mouth lotions have hitherto generally been sold in a fluid form. In this form
spirit or water is the vehicle for the flavoring, odoriferous, and active or sanitary
ingredients. At the time of use a small quantity of the lotion is added to water so
as to form a wash for rinsing the mouth.
The inconveniences due to the fluid form of the mouth lotion such for example as the
necessity for glass or other bottles liable to breakage, the bulky form of such bottles,
the expense of packing and transport of same and the loss of lotion by spilling have
led to the present invention, the object of which is to bring the ingredients of the
lotion into the market in a dry form and in such a condition that they can be
readily dissolved for use.
I have found, however, that in so preparing the substances in the form of fine
powder, such powder has a tendency to cake or form into lumps during keeping, and
thereby to lose to a great extent. its convenient character for ready use and solution.
Or if the substances are prepared in the form of a coarse powder or in the form of
crystals they require long stirring before becoming completely dissolved in water,
and this also lessens the convenience in using the same. Moreover lotions prepared
in this manner are frequently flat or flavorless because the warm water in which
the substances are dissolved is free of air.
Now according to my invention I prepare a dry mixture or compound in the
form of coarse powder or in a granular form which during keeping will not change
its form and which in consequence of chemical reaction will easily and readily
dissolve in water, and which also by the development of carbonic acid will
produce a sparkling or effervescing mouth lotion or wash.
Although the dry mixture or compound for the effervescing action is in the form
of a coarse powder or in granular form, by which its durability is materially
increased, it has the characteristic quality of quickly dissolving in warm water
under the effect of chemical reaction."
The effervescent mixture may be composed of well known ingredients for
producing effervescence or sparkling, such as an alkaline carbonate and a free
organic acid; the latter, however, may be partly or entirely replaced by antiseptic
salts of alumina having acid reaction which act upon the alkaline carbonate in the
same manner as free acid. It is, however, necessary to add some tartaric acid or
tartaric salt in order to prevent the precipitation of hydrate of alumina.
alkaline compound, bicarbonate of soda as well as the mono-carbonate salt may be
used.
As to the
Among the salts of alumina the sulphate of alumina or other soluble alumina
compounds such for instance as acctate of alumina or tartrate of alumina may be
used. The mixing of the alumina salt with tartaric acid may for example be
made in such a manner that these two substances constitute from the first a double
salt of alumina, such as aceto-tartaric alumina-(aluminium-acetico-tartaricum).
The said double salt will if mixed with sodium bicarbonate dissolve in water
under rapid effervescence and will produce a wash or lotion for rinsing the mouth
which is superior both as regards taste and effect.
I have found as a suitable mixture 22 parts of the double salt (aluminium-acetico-
tartaricum) and ten parts of sodium bicarbonate.
If, however, other ingredients such as are frequently used in mouth lotions have

page_text: to be present in the above named dry compound or mixture, these ingredients may
be added in the form of a tincture to the powdery substances before they are mixed
to form an effervescent mixture. Such ingredients are for instance the gum resins,
such as myrrh or other vegetable substance; in the tinctures of such ingredients
the volatile oils of other substances may be dissolved, such for example as thymol,
tannin, peppermint oil &c., by which additions the taste or flavor of the lotion is
determined.
The tinctures of resin and of vegetable substances flavored with volatile oils may
be used to moisten the powdery substances of the effervescent mixture, and then
these substances are granulated, allowing the spirit of wine of the tinctures to
evaporate, after which the admixture of the substances so as to make the effervescent
mixture is efl'ected.
Or the liquid may be absorbed by broken crystals, into which form the substances
may be brought so as to avoid the granulating operation.
I do not limit myself to the above named substances or ingredients in manufac-
turing a dry mixture capable of solution in water under effervescent action for
preparing a mouth lotion as the components of such effervescent mixture as well as
the additions to such components for antiseptic and hygienic action in general upon
the teeth, gums and mouth may be selected at will.
Dated this 21st day of June 1890.
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
The Manufacture of Dry Compounds or Mixtures for Making
Effervescing Mouth Lotions or Washes.
I, PAUL PETZOLD, of Schvigiswalde, Saxony, German Empire, Apothecary,
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 :-
Mouth lotions have hitherto generally been sold in a fluid form; in this form
spirit or water is the vehicle for the flavoring, odoriferous and active or sanitary
ingredients. At the time of use of small quantity of the lotion or its essence is added
to water so as to form a wash for rinsing the mouth. The inconveniences due to
the fluid form of the mouth lotion or essence, such for example as the necessity for
glass or other bottles liable to breakage, the bulky form of such bottles, the expense
of packing and transport of same, and the loss of lotion by spilling, have led to the
present invention which consists in preparing and mixing together the ingredients
of the lotion for sale in a dry form and in such a condition that they can be readily
dissolved for use.
I have found, however, that in so preparing the substances in the form of a fine
powder, such powder has a tendency to cake or form into lumps during keeping and
thereby to lose to a great extent its convenient character for ready solution for
use.
Or if the substances are prepared in the form of a coarse powder or in the
form of crystals, they require long stirring before becoming completely dissolved
in water, and this materially lessens the convenience in using the same. Morcover
lotions prepared in this manner are frequently flat or flavorless because the warm
water used for dissolving such substances for use is free of air.
Now according to my invention I prepare a dry mixture or compound in the form
of a coarse powder or in a granular form which during keeping will not change its
form and which in consequence of the chemical reaction will easily and readily
dissolve in water for immediate use, and which also by the development of carbonic
acid will produce a sparkling or effervescing mouth lotion or wash.
For preparing the mouth lotion in a dry form I employ an alkaline carbonate and
an organic or inorganic acid, both in dry form; or partly or entirely in place of

page_text: the acid I employ a salt of acid reaction which will develop carbonic acid from the
carbonate, if dissolved with the latter, as is well understood.
Of the carbonates I prefer to use sodium bicarbonate and of the acids tartaric acid,
while of the salts of acid reaction I prefer to use the salts of alumina and especially
tartrate of alumina or aceto-tartrate of alumina; these alumina salts are very
desirable on account of their disinfecting property.
I have found that 22 parts by weight of aceto-tartrate of alumina (aluminum-
acetico-tartaricum) and ten parts of sodium bicarbonate form a mouth lotion of
good quality. The substances just mentioned are each brought separately into the
granular state or into the form of a coarse powder and they are then well mixed
together in a dry state in or in about the proportions stated. This will ensure that
the mixture will keep without caking or changing in any way.
If preferred the above mixture may have mixed with it any desired essential oil,
such for example as peppermint oil, or a solution composed of an essential oil and a
substance such for example as thymol or the like. Such additions will perfume the
mixture and will give it the required flavor.
If a suitable quantity of the above mixture, with or without the additions mentioned
be put into a tumbler of water it will readily dissolve and effervesce and will thus
produce a highly efficient and very agreeable mouth wash or lotion.
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 manufacture or preparation substantially as hereinbefore described of a
dry and readily soluble mixture or compound in a powdered or granular form which
when dissolved in water will produce an effervescing mouth lotion or wash, the said
mixture or compound containing or not any desired flavoring or antiseptic ingredients
as explained.
2. In the manufacture or preparation of a dry and readily soluble mixture or
compound of the nature referred to in Claim 1, the employment of sodium
bicarbonate and a salt of alumina such as tartrate of alumina or accto-tartrate of
alumina in or in about the proportions hereinbefore specified with or without
flavoring or antiseptic ingredients, substantially as hereinbefore described.
3. As a new article of manufacture a dry mixture or compound substantially such
as herein before described, which when dissolved in water produces an effervescing
mouth lotion or wash.
Dated this 18th day of March 1891
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.