JP2002370956A - Liquid tooth-brushing composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid tooth-brushing composition capable of imparting gloss and shine to teeth more than those of an original whiteness. SOLUTION: This liquid tooth-brushing composition is characterized by containing shellac. The form containing at least one of a fluorinated oil and a bactericide, the form containing both of the fluorinated oil and the bactericide, the form containing any of chlorohexidine hydrochloride, isopropylmethylphenol, cetylpyridinium chloride, decalinium chloride, benzalkonium chloride, benzethonium chloride, an alkyldiaminoethylglycine hydrochloride and triclosan as the bactericide, and the form containing 0.01-10% shellac are preferable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid dentifrice composition which can impart gloss to teeth and is easy to handle.

[0002]

2. Description of the Related Art Many people brush once to several times a day for the purpose of cleaning the oral cavity and preventing various diseases. Keeping the teeth white is important both as etiquette and as a symbol of smile, and many commercially available toothpaste compositions have variously devised to whiten the teeth. Under these circumstances, liquid toothpaste compositions have been widely used in the past because they are effective for cleaning the oral cavity, can also make teeth whiter and easier to use. However, the conventional liquid toothpaste composition cannot give the teeth a gloss or shine that is higher than the original whiteness.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems and to provide a liquid toothpaste composition capable of giving a gloss or shine to a tooth more than the original whiteness.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a liquid toothpaste composition capable of imparting gloss to teeth by including shellac. The present invention is also a liquid toothpaste composition containing shellac and further containing a fluorinated oil and / or a bactericide, and capable of giving gloss to teeth. The present invention is also a liquid toothpaste composition comprising shellac, fluorinated oil and a bactericide, capable of imparting gloss to teeth.

[0005] Shellac used in the present invention (Japanese Pharmacopoeia)
Is a luck scale insect [LacciferLacca]
[Kerr (Coccidae)]] is a resinous substance obtained by purifying secretions covering the body. Shellac is a pale yellow-brown to brown scaly flake with a firm, brittle, lustrous, odorless or slightly unique odor. Insoluble in water, ether, hexane and isooctane, but soluble in ethanol and propylene glycol. For example, propylene glycol has a solubility of 100 mg / ml at 25 ° C and 500 mg / ml at 37 ° C. Shellac usually contains 5-6% wax, whereas purified shellac is dewaxed. The main components of shellac are 2 moles of aleuric acid (aleuric acid) and 2 moles of cellonic acid (S
helic acid) is a mixed lactide of 2 moles and 4 moles of shellac resin acid, and its estimated structural formula is said to be represented by the following formula.

[0006]

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In the present invention, a fluorinated oil can be contained. Fluorinated oils are perfluoropolyethers, such as FOMBLIN HC®
Available as FOMBLIN HC (registered trademark)
Although there are various grades, they can be appropriately selected and used. When the fluorinated oil is used in combination, the gloss is further enhanced.

Further, the liquid dentifrice composition of the present invention may contain a bactericide. Specific examples of fungicides include chlorohexidine hydrochloride, isopropylmethylphenol, cetylpyridinium chloride, decalinium chloride,
Benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, and triclosan can be mentioned.

The content of shellac used in the liquid dentifrice composition according to the present invention is based on the total amount of the composition.
Generally 0.01% to 10%, preferably 0.1%
To 7%, more preferably 1% to 5%.

[0010] The content of the fluorinated oil is generally 0.01% to 2%, preferably 0.05% to 1%, more preferably 0.1%, based on the total amount of the composition. % ~
0.5%.

The content of the bactericide is generally 0.001% to 1%, preferably 0.005% to 0.5%, more preferably 0.005% to 0.5%, based on the total amount of the composition. It is 0.01% to 0.2%.

Other components used in the liquid dentifrice composition include abrasives such as heavy calcium carbonate and aluminum hydroxide, humectants such as propylene glycol and sorbite, foaming agents such as sodium lauryl sulfate, carrageenan, carboxy. Examples include adhesives such as sodium methylcellulose, flavors, flavors such as sodium saccharin, preservatives such as paraben, and various medicinal components.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The liquid dentifrice composition according to the present invention can be produced in the same manner as a conventional liquid dentifrice composition except that shellac is dissolved in propylene glycol, ethanol or the like. FOMBLIN HC (registered trademark) is insoluble in most solvents, but has good emulsification and dispersibility, so that it can be used as a mixture with, for example, propylene glycol or glycerin. A bactericide can also be used by dissolving or dispersing in a solvent commonly used for liquid toothpaste compositions.

The method of using the liquid dentifrice composition according to the present invention is not particularly limited, but usually, it may be used in the morning, evening, or at the time of brushing before going to bed in the same manner as the conventional liquid dentifrice composition. Alternatively, the liquid toothpaste composition according to the present invention may be applied directly to teeth with a brush or the like, or may be rinsed and used as a mouthwash.

[0015]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples.

Example 1 Liquid Toothpaste Composition Ingredients% by Weight Shellac 0.05 Propylene Glycol 10.0 Glycerin 2.0 Sorbit Solution 5.0 Xylitol 1.0 Polyoxyethylene Hardened Castor Oil 3.0 Sodium Lauryl Sulfate 1.0 Saccharin sodium 0.1 Methyl parahydroxybenzoate 0.1 Perfume Appropriate amount Purified water Residual Total 100.00

In advance, shellac was dissolved in propylene glycol by heating. Separately, xylitol and polyoxyethylene hydrogenated castor oil were well dispersed in glycerin. Also, methyl paraoxybenzoate dissolved in the fragrance. On the other hand, a solvit solution,
Saccharin sodium and purified water were added and uniformly dissolved and mixed. A propylene glycol solution in which shellac was dissolved and the glycerin dispersion were added thereto and mixed to prepare a uniform solution. Next, after degassing the air contained in this solution, the stirring was stopped once, sodium lauryl sulfate was added, and the mixture was stirred again under reduced pressure to obtain a uniform composition. Finally, the flavor liquid was added and mixed. Thus, a liquid dentifrice composition according to the present invention was produced.

Example 2 Liquid toothpaste composition Ingredients% by weight Shellac 0.05 Ethanol 12.0 Glycerin 2.0 Cetylpyridinium chloride 0.05 Polyoxyethylene hydrogenated castor oil 6.0 Sodium citrate 0.1 Sodium saccharin 0.1 Perfume Appropriate amount Purified water Residual Total 100.00

In Example 1, shellac was stirred and dissolved in place of ethanol in place of propylene glycol, and a liquid dentifrice composition was produced according to a conventional method.

Next, an experiment was conducted to determine the glossiness on the tooth surface. That is, 16 subjects (9 males and 7 females) were brushed with the liquid toothpaste composition (A) according to the present invention and the control liquid toothpaste composition (B) containing no shellac, and had at least 10 years of clinical experience. The glossiness of the test teeth was visually determined by three judges.

Experimental method The test teeth were labial flank surfaces of the upper and lower anterior teeth. Immediately after three examiners visually observe the condition of the test tooth surface before brushing, place one of them on a toothbrush that the test subject uses daily for about 2 cm, and freely use only the test tooth surface for about 1 minute. Brushed. The judge did not know which dentifrice the subject was using. However, the number of subjects using each dentifrice was the same (8 each). After the end of the brushing, the glossiness of the test tooth surface was judged by three judges. The criterion is that the gloss of the test tooth surface does not change before and after brushing,
There were four types: slightly glossy and clearly glossy.

Results The results of the judgment are shown below. Liquid toothpaste composition of the present invention (A) Control liquid toothpaste composition (B) No change 3 9 Neutral 5 7 Slightly glossy 13 8 Clearly glossy 30

As a result of the Mann-Whitney test, the risk factor was 1%
, A statistically significant difference was observed between the group using the liquid toothpaste composition (A) of the present invention and the group using the control liquid toothpaste composition (B).

Conclusion The tooth surface after use of the liquid toothpaste composition (A) of the present invention was determined to be glossier than after use of the control liquid toothpaste composition (B).

[0025]

When the liquid toothpaste composition according to the present invention is used, in addition to imparting whiteness to the teeth, gloss, shine,
Gloss can be given. Although the teeth have a reduced number of blemishes due to the numerous scratches on the surface, the use of the liquid toothpaste composition according to the present invention results in the tooth surface being covered with shellac and becoming smoother. Therefore, it is considered that irregular reflection of light can be suppressed, and gloss, shine, and gloss can be given to the teeth. Furthermore, the liquid toothpaste composition of the present invention can contain a fluorinated oil and / or a bactericide, which can further increase the gloss and the like of the teeth and can reduce the bacteria of the coated teeth. Breeding can be prevented. That is, the fluorinated oil has an effect of enhancing gloss. In addition, when the teeth are covered with shellac, anaerobic bacteria may propagate in the teeth because the air permeability of the shellac coating is low. However, by including a fungicide, the propagation can be suppressed.

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Claims (5)

[Claims] 1. A liquid dentifrice composition comprising shellac. 2. The liquid dentifrice composition according to claim 1, comprising at least one of a fluorinated oil and a bactericide. 3. The method according to claim 1, which comprises a fluorinated oil and a bactericide.
A liquid dentifrice composition according to claim 1. 4. The bactericide is chlorohexidine hydrochloride, isopropylmethylphenol, cetylpyridinium chloride,
The liquid dentifrice composition according to claim 2 or 3, which is any one of decalinium chloride, benzalkonium chloride, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, and triclosan. 5. The dentifrice composition according to claim 1, which contains 0.01 to 10% of shellac.