JPH08337518A - Mouth-washing composition - Google Patents

Abstract

PURPOSE: To obtain a mouth-washing composition excellent in dispersion stability of an abrasive and having an easily acting and a sufficient and necessary degree of cleaning power by adding a specific polysaccharide to a mouth-washing composition composed of a specified amount of an abrasive and having a specific viscosity. CONSTITUTION: Gellan gum is added to a mouth-washing composition composed of 2-30wt.% of an abrasive and having a viscosity of 1-1800cp at 25 deg.C. Gellan gum is preferably added in an amount of 0.005-1wt.% based on the total of the composition. The abrasive is e.g. a precipitated silica, zirconosilicate, calcium phosphate and aluminum hydroxide. Gellan gum is a polysaccharide produced by a bacterium, Pseudomonas elodea, and the constituting saccharides are glucose, glucuronic acid and rhamnose, those molecular ratios are 2:1:1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouthwash composition having excellent dispersion stability of an abrasive and having a simple and necessary cleaning power.

[0002]

2. Description of the Related Art In order to remove plaque which is a cause of dental caries or periodontal disease, brushing with toothpaste or mouthwash with mouthwash has been conventionally performed. However, toothpaste has a drawback in that it is not easy to use because it uses a brush, and although a mouthwash is simple, a necessary and sufficient cleaning effect cannot be obtained.

Therefore, it has been proposed to add an abrasive to the mouthwash in order to make up for the drawbacks of the above-mentioned mouthwash. However, even if the abrasive is added, a sufficient cleaning effect cannot be obtained and the toothbrush of It is specified that the combination is used, and it must be said that this abandons the advantages of the mouthwash by itself (Table 6-5021).
No. 41).

On the other hand, the viscosity of toothpaste is usually 200 for toothpaste.
~ 2000 poise, 20-180 poise with liquid toothpaste,
Mouthwashing with these is impossible in terms of usability, and the viscosity of the mouthwash is usually 1 to 1800 centipoise, especially 30.
It is adjusted to a range of ~ 500 centipoise suitable for mouthwash. However, when the viscosity of the mouthwash is within the above range, phase separation such as sedimentation of the abrasive occurs, which is a problem in quality.

The mouthwash described in JP-A-6-502141 is blended with synthetic or natural clay for stabilizing the dispersion of the polishing agent, and xanthan gum is also used in the examples. Are also illustrated. However, it is hard to say that the above mouthwash is sufficiently satisfactory in the dispersion stability of the abrasive, and improvement of this point has been desired.

The present invention has been made to solve the above problems, and can stably disperse the abrasive even during long-term storage, prevent the abrasive from separating in the mouthwash, and are simple and convenient. Moreover, it is an object of the present invention to provide a mouth rinse composition having necessary and sufficient cleaning power.

[0007]

Means and Actions for Solving the Problems As a result of intensive studies for achieving the above object, the present inventor has found that the compounding amount of the abrasive is 2 to 30% by weight and the viscosity at 25 ° C. is 1 to
By blending gellan gum into a mouthwash composition that is 1800 centipoise, the abrasive can be stably dispersed even during long-term storage, and separation of the mouthwash can be prevented, and without using a toothbrush. However, the inventors have found that plaques can be removed satisfactorily, and thus a high-quality mouthwash composition having a simple and necessary and sufficient cleaning power can be obtained, and the present invention has been completed.

Gellan gum is used in foods as a gelling agent, and is disclosed in JP-A-5-139979.
Japanese Patent Publication proposes a composition for oral cavity for inhibiting or eliminating adhesion of dental caries, which contains a polysaccharide selected from funoran, i-carrageenan, furceleran and gellan gum as an active ingredient. There is no example of the composition, and by compounding gellan gum in the mouthwash composition in which the amount and the viscosity of the polishing agent are in the above specific range, it is a new finding of the present inventor that the above-mentioned excellent effects can be obtained. is there.

Therefore, in the present invention, the amount of the abrasive compounded is 2 to 3.
A mouthwash composition comprising 0% by weight and a gellan gum mixed with a mouthwash composition having a viscosity of 1 to 1800 centipoise at 25 ° C.

The present invention will be described in more detail below. The mouthwash composition of the present invention has an abrasive compounding amount of 2 to 30.
Gellan gum is blended with a mouthwash composition having a weight percentage of 1 to 1800 centipoise at 25 ° C.

The abrasive used in the mouthwash composition of the present invention is not particularly limited as long as it is a dentally acceptable insoluble abrasive, and various kinds can be used, for example, precipitated silica and zircono. Silica-based abrasives such as silicate, calcium phosphate, aluminum hydroxide, aluminum oxide and the like are preferably used.

The compounding amount of the above-mentioned abrasive is 2 to the whole composition.
30% (% by weight, the same applies hereinafter), preferably 5 to 20%. If the amount of the abrasive compounded is less than 2%, the required cleaning power cannot be obtained, and if it exceeds 30%, the viscosity increases and the usability at the time of mouthwash decreases.

The viscosity of the mouthwash composition of the present invention at 25 ° C. is 1 to 1800 centipoise, preferably 30.
~ 1000 centipoise, more preferably 50-500
It is centipoise, and if the viscosity is less than 1 centipoise, separation occurs, and if it exceeds 1800 centipoise, the fluidity deteriorates.

The gellan gum used in the present invention is a polysaccharide produced by the microorganism Pseudomonas erodia. The constituent sugars are glucose, glucuronic acid and rhamnose, and the molecular ratio is 2: 1: 1. It is sold under the name of Kercogel.

The amount of gellan gum is preferably 0.005 to 1%, more preferably 0.01 to 0.6%, and most preferably 0.05 to 0.3% of the total composition. 0
If it is less than 05%, dispersion stabilization of the abrasive may not be obtained, and if it exceeds 1%, fluidity may be impaired due to gelation.

In the mouth rinse composition of the present invention, in addition to the above-mentioned essential components, optional components that can be used in ordinary mouth rinse compositions can be used. Specifically, polyhydric alcohols such as glycerin, sorbit, propylene glycol, and polyethylene glycol as moisturizers (usually 2
To 70%), a water-soluble polymer compound such as xanthan gum, sodium alginate, carrageenan, carboxymethyl cellulose, sodium polyacrylate (usually 0.005 to 1%) as a dispersant, and sodium lauryl sulfate as a surfactant. Nonionic surfactants such as anionic surfactants, decaglyceryl laurate and myristate diethanolamide (usually 0.05 to 3)
%), Fluorine compounds such as sodium fluoride, enzymes such as dextranase and mutanase, tranexamic acid, ε-aminocaproic acid, and flavoring agents such as sodium saccharin, peppermint, spearmint, and wintergreen. In addition, the compounding amount of these optional components can be a usual amount within a range that does not impair the effects of the present invention.

[0017]

EFFECTS OF THE INVENTION The mouthwash composition of the present invention stably disperses the abrasive even during long-term storage, can prevent separation of the mouthwash, and can remove plaque without using a toothbrush. It is a high quality product that can be satisfactorily removed, is simple, and has sufficient and sufficient cleaning power.

[0018]

EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. In addition,% in each example is% by weight.

[Examples and Comparative Examples] Mouthwash compositions having the compositions shown in Table 1 were prepared, and the viscosity, dispersion stability and cleaning power were evaluated by the following methods. The results are shown in Table 1. Viscosity viscometer: BH type viscometer (manufactured by Tokyo Keiki Seisakusho) Rotor: No. 1 rotation speed: 4 to 20 rpm Measurement temperature: 25 ° C Dispersion stability A plastic bottle (80 ml) was filled with the sample,
It was stored in a constant temperature bath of 40 ° C. for 1 month, and the phase separation was visually judged according to the following criteria. ○: Good with no change in appearance. X: Sedimentation or syneresis phenomenon of the abrasive was observed, and separation occurred. Cleaning power evaluation method An equilateral triangular column (height 30 mm) attached in the center of an acrylic resin container with internal dimensions of 40 mm long, 100 mm wide, and 45 mm high
mm) and the black oil-based ink was evenly applied to the side surface, and the color difference (L1) was measured using the following color difference meter.
9 × 3 mm) was set. Next, the sample was placed in a container, covered with a lid, and shaken under the following conditions. Then, the zinc plate was taken out, washed with water, the color difference (L2) was measured again, and the cleaning power (ΔL value) was calculated by the following formula. Color difference meter: Σ80 color difference meter (Nippon Denshoku Industries KK) Cleaning power (ΔL value) = L2-L1

[0020]

[Table 1]

From the results shown in Table 1, it was confirmed that the mouthwash composition of the present invention was excellent in dispersion stability and cleaning power of the abrasive.

Claims (2)

[Claims] 1. A mouthwash composition characterized by containing gellan gum in a mouthwash composition having an abrasive content of 2 to 30% by weight and a viscosity at 25 ° C. of 1 to 1800 centipoise. . 2. The mouthwash composition according to claim 1, wherein the content of gellan gum is 0.005 to 1% by weight based on the total weight of the composition.