KR840000904B1 - Strong foaming toothpaste - Google Patents

Abstract

Strong foaming toothpaste comprises gelatin, gelatinous egg-white product or a mixt., and at least one kind of surfactant. The content of the gelatin, gelatinous products and its mixt. is about 1-10 wt.% (pref. 2-7 wt.%), and that of the surfactant is 1-2.5 wt.% (pref. 1.5-2 wt. %). Other additives are included in this toothpaste, in which esp. 0.01-1 wt.% (pref. 0.1-0.5 wt.%) of fluorine concentrate is involved.

Description

Strong Effervescent Toothpaste

FIELD OF THE INVENTION The present invention relates to toothpastes having strong foaming power, and more particularly to highly foaming toothpastes containing gelatin, gelatinous egg white products, or mixtures thereof and surfactant blowing agents.

Concentrated foams give the impression of a strong wash, so toothpaste with strong foam appeals to many customers. Also preferred is a toothpaste that causes color change while brushing because color change provides visual wash control. West German Patent Application No. 2,747,092 describes a highly effervescent toothpaste with visual cleaning control. Since concentrated foam can substantially cover the colorant, color changes are readily observed during toothpaste use as may be desired.

Previously, toothpastes with strong foamability contained high amounts of foaming surfactants, according to West German Patent Application No. 2,747,092, which contained at least 2.5% of surfactant components in order to achieve minimal visual cleaning control by brushing. shall. It has been known that high concentrations of surfactants or humectants have an adverse effect on toothpaste flavor, particularly in toothpastes where the surfactant is soap. Moreover, it is known that toothpaste with a large amount of surfactant decomposes the epithelial cell structure of the mucosa and that the mechanical polishing of the toothbrush improves the resulting tartar removal. Many references document the development of epithelial lesions caused by crab surfactants.

One object of the present invention is to provide a novel toothpaste with a strong foaming capacity containing one or more surfactants which minimizes or eliminates the disadvantages of toothpastes having a high surfactant content discussed above.

According to the present invention, it has been found that a toothpaste with strong foaming ability is obtained by including gelatin, gelatinous egg white product or mixture thereof in the toothpaste. Generally, the amount of gelatin, gelatinous egg white product or mixture thereof is included in the range of about 1-10% by weight, preferably 2-7% by weight of the toothpaste.

Inclusion of gelatin, egg white products of gelatin, or mixtures thereof in toothpaste can achieve a high foaming capacity while significantly reducing the toothpaste surfactant content. The surfactant content of the toothpaste may for example be about 1-2.5% by weight, preferably 1.5-2% by weight.

It is nolanguin to find that the surfactant content of highly foamed toothpastes is reduced and that some of the surfactant components are replaced by gelatin, gelatinous egg white products or mixtures thereof. This is because the gelatin or gelatin egg white product with the surfactant is thought to form a reaction product containing the properties of the initial component at very low levels or almost lacking these properties. In particular, it is known that standard properties and foams for wetting surfactants are reduced by the addition of protein material. Thus, despite the mixing of surfactants and gelatin, gelatinous egg white products or mixtures thereof in toothpaste, it is unexpected to produce strong foam products.

The discovery of the present invention is particularly important for visual brushing toothpastes, as described in West German Patent Application No. 2,747,092. Although such toothpaste may only have a surfactant content of at least 2.5% due to medical reasons and taste, the surfactant content may not be higher than 2%, or preferably higher than 1%.

Gelatin or gelatin egg white products, or mixtures thereof, used in toothpastes can be obtained from various food products that provide gelatin products with chemical and physiological properties that are acceptable for use in toothpaste. Gelatin, gelatin hydrolysates or collagen hydrolysates are particularly useful.

Gelatin, which can be dissolved in cold water and also has a unique high foaming capacity, is particularly suitable. Acid extracted from the pig's thick skin has this property. Other preferred products are gelatinous copper and copper A / B as well as gelatin hydrolysate CF, available from German gelatin factory of Stoessand Co., GmbH, Eberbach / Baden. With low viscosity, gelling capacity and low pH, these gelatines are soluble in cold water and have a relatively unique strong foaming capacity.

Literature has proposed a method for thickening toothpastes with egg white, in particular egg white gelatin. However, this proposal was not implemented because of considerable technical difficulties. Normally gelatin should be dissolved hot, which delays production. Moreover, toothpaste is not suitable for use because it is unstable with temperature. The amount of gelatin added to this balsam is actually less than the amount needed to thicken the toothpaste. The amount of gelatin added does not affect toothpaste viscosity, or it is so small that no effect is observed.

Surprisingly, the gelatin added to the toothpaste of the present invention reduces the adverse effect of the surfactant on the oral mucosa. Moreover, the undesirable effect of surfactants on toothpaste flavor is also reduced by containing gelatin. In addition, sometimes relatively subjective feeling of dry mouth, due to the high surfactant of known toothpastes, is no longer observed in the toothpastes provided by the present invention.

In the visual wash control toothpaste as described in West German Patent Application No. 2,747,092, the same decolorizing effect can be readily obtained with strong foaming while the surfactant content is reduced to about 1.5-2 weight in accordance with the present invention.

Representative high surfactants that can be used in toothpastes according to the present invention are water-soluble salts of highly alkyl sulfates, such as sodium lauryl sulfate, aliphatic acylamides, saturated monoaminofatty acids and preferably sodium N-lauroyl sarcosine. Nonionic surfactants and monovalent or polyvalent amines, long chain amine oxides, betaines such as lauric fatty acid amides, sulfonated monoglyceride salts of higher fatty acids, fatty acid esters of iserionic acid or salts thereof, alkenylene oxide condensates with aliphatic alcohols Ampholytic oxides or cationic surfactants such as long-chain alkylamino carboxylic acids and quaternary ammonium compounds. However, it is obvious that the choice of surfactant does not limit the present shedding since various different surfactants may be used.

The surfactants may be used alone or as a mixture and may be present in the toothpaste in an amount ranging from 1-2.5% by weight, preferably 1.5-2% by weight. In general, lower concentrations do not provide the desired high foaming capacity and higher concentrations are undesirable for the reasons described above.

The toothpaste may contain about 1-10% by weight, preferably 2-7% by weight gelatin, gelatinous egg white product, or mixtures thereof. It is unnecessary and undesirable to increase the surfactant because lesser amounts are not provided sufficiently to bubble. Amounts greater than 10% are generally not used because they have been observed to have a noticeable effect on viscosity and have unsatisfactory effects due to gelatin's temperature instability.

Toothpastes according to the present invention may contain conventional additives and ingredients. Glycerin, low molecular weight polyglycols and wet holding materials such as sugar alcohols such as sorbitol, minitol and xylitol. Thickeners used preferably are alkali metal salts of carboxymethyl cellulose, in particular sodium carboxymethyl cellulose, hydroxy alkyl cellulose, in particular hydroxy alkyl cellulose, tragacanth, gum arabic, karaya gum and Irish moss. Vegetable gums, synthetic polyelectrolytes and possibly inorganic thickening materials such as colloidal magnesium aluminum silicates. Especially preferred are fumed silicas made from SiCl ₄ . Moreover, the toothpaste of the present invention may contain calcium carbonate and / or dicalcium phosphate as well as conventional flavors and flavorings and stabilizing substances.

In a preferred embodiment of the present invention the fluorine concentrate contains fluorine compounds in an amount of 0.01-1% by weight, preferably 0.1-0.5% by weight.

Suitable fluorine compounds are not only monofluorophosphoric acid but also various fluorides containing fluorine in ionic form, in particular alkalis such as sodium fluoride, lithium fluoride and potassium fluoride, ammonium fluoride, tin fluoride, manganese fluoride, zirconium fluoride and aluminum fluoride. Metal fluorides as well as mixtures thereof, or adducts of these fluorides with other fluorine compounds such as potassium manganese fluoride or sodium manganese fluoride, and the like. Still other fluorides usable in accordance with the present invention are zinc fluoride, germanium fluoride, palladium fluoride, titanium fluoride, alkali fluorine-zirconates and pololin sulfate. In addition, known addition products of long-chain amino acids and hydrogen fluoride can be used, in particular monoethanol aminohydro fluoride and methyl triethylammonium fluoride.

The toothpaste according to the invention may also contain not only phosphoric acid, but also substances which decompose tartar deposits, such as bis-biguanides such as chlorohexidine, fluorohexidine and alexidine and their water-soluble salts.

Toothpaste with visual brushing control in accordance with West German Patent Application No. 2,747,092 may contain all ingredients and is one which adds gelatin, gelatinous egg white product, or mixtures thereof in place of the surfactant portion which is low in surfactant content and removed An exception is preferably made according to the described method.

L에 의해, 검은색에 대한 광택도 L=0, 백색에 대한 L=100으로 기포 탈색을 나타내며, 이어서 기포는 백색으로 탈색되거나 또는 희미하게 착색된 상태가 된다.According to the invention, particularly suitable toothpastes with visual cleaning control contain a sufficient amount of foaming colorant so that the colored foam produced at least 20 seconds after brushing at the beginning of brushing teeth is about 10-30 and preferably 15 Glossiness degree of -25 range

By L, bubble discoloration is shown by glossiness L = 0 to black and L = 100 to white, and then the bubbles are discolored to white or faintly colored.

The following example illustrates a new toothpaste composition prepared according to the present invention.

Example 1

Toothpaste was prepared by a conventional manufacturing method using a conventional edible gelatin (German Gelatine fabriken stoess & Co., GmbH, Eberbach / Baden gelatin Cu).

The effect of the toothpaste according to the invention on the discoloration of the bubbles formed was tested in five people with an electric toothbrush (AEG-Princess). Each time a 2 cm-long toothpaste (corresponding to 0.5 g) was placed on a moistened toothbrush and continued until the brush was foamed, the initial clear blue turned white or no longer changed color during the appropriate brushing period.

The obtained result is as follows.

Average duration = 90 seconds

For comparison, a toothpaste according to West German Patent Application No. 2,747,092 having the following composition was tested.

The toothpaste contained 3.5% / weight of surfactant.

The brushing test was carried out as described above to obtain the following results.

Average duration = 96 seconds.

Compared with the known compositions, it was evident in these tests that almost the same results were obtained despite a 1% / weight reduction in total surfactant.

Example 2

Toothpaste was made with the following ingredients using gelatin extracted from pig skin.

The brushing test conducted as described in Example 1 showed the following results.

Average duration = 96 seconds.

Compared with the known composition (Example 1), although the surfactant content of this toothpaste was lowered to 2.0%, the result completely corresponded to the known toothpaste (Example 1) composition of high surfactant content.

Example 3

Strong effervescent toothpaste was prepared according to the present invention containing sodium mono fluoro phosphate.

Example 4

Medically recommended strong effervescent fluoride toothpaste was prepared with 2% by weight of surfactant using the following ingredients.

The gelatine hydrolyzate is cold water soluble and a strong foaming product of German Gelatinefabriken stoess & Co., GmbH, Eberbach (gelatin hydrolysate CF).

Claims (1)

As described above in the text, an improved strongly effervescent toothpaste containing gelatin, gelatinous egg white products or mixtures thereof and at least one surfactant.