JPH111418A - Dentifrice composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition excellent in appearance, causing no liquid separation even after long-term preservation and excellent in stability, by adding a specific water-soluble polymer compound and a polyethylene glycol to a dentifrice composition mixed with sodium hydrogencarbonate. SOLUTION: This composition is obtained by properly formulating (A) a dentifrice composition containing 2-40 wt.%, preferably 3-20 wt.% based on the total of sodium hydrogencarbonate with (B) 0.1-3.0 wt.%, preferably 0.5-2.0 wt.% of one or more water-soluble polymer compounds selected from xanthan gum, carageenan gum and sodium alginate, (C) 0.1-3.0 wt.%, preferably 0.3-1.0 wt.% of a polyethylene glycol having 950-7,000, preferably 950-4,000 average molecular weight and optionally an abrasive, a thickening agent, a surfactant, a pH adjuster, a sweetener, a spice, a disinfectant, a coloring matter, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a dentifrice composition having excellent appearance and stability.

[0002]

2. Description of the Related Art
A technique for blending sodium bicarbonate, an abrasive and other chemicals with an oral composition such as a dentifrice is known (Japanese Patent Application Laid-Open No. 52-1982).
54038, 59-176206 and 6
1-205207, 63-197212). It is also known that the addition of sodium bicarbonate imparts a special feeling of use and a refreshing feeling in the mouth when an oral composition such as dentifrice is used (Japanese Patent Application Laid-Open No. 49-1979).
No. 69849). Further, a dentifrice composition containing sodium hydrogencarbonate, polyethylene glycol, and an inorganic or organic binder is also known (Japanese Patent Application Laid-Open No. 2-243616). However, the effect of polyethylene glycol in the dentifrice composition to suppress liquid separation is not known.

[0003] In the dentifrice composition, a binder is blended for the purpose of proper viscosity, shape retention, water retention and the like, and sodium carboxymethylcellulose is widely used. However, when sodium carboxymethylcellulose is used as a binder in a dentifrice composition containing sodium bicarbonate, the dentifrice becomes roughened with time, causing a problem in appearance. Further, in this dentifrice composition, liquid separation occurs after long-term storage, and there is a problem in stability.

Therefore, development of a dentifrice composition containing sodium bicarbonate having good appearance and stability has been desired.

[0005]

Means for Solving the Problems and Embodiments of the Invention The present inventors have conducted intensive studies in order to meet the above-mentioned demands. As a result, the dentifrice composition containing sodium bicarbonate was added to xanthan gum, carrageenan, sodium alginate. By mixing one or two or more selected from the group and polyethylene glycol, a dentifrice composition having good skin and excellent appearance can be obtained, and this dentifrice composition can be stored for a long period of time. It was found that liquid separation did not occur and the stability was excellent, and the present invention was achieved.

Hereinafter, the present invention will be described in more detail. The dentifrice composition of the present invention contains sodium bicarbonate, and further comprises one or more selected from xanthan gum, carrageenan, and sodium alginate, and polyethylene glycol. It is made.

In the present invention, the amount of sodium bicarbonate is preferably in the range of 2 to 40% (% by weight, hereinafter the same), particularly 3 to 20% of the whole composition. 2% blended amount
If the amount is less than 40%, a specific feeling of use and a sufficient refreshing feeling may not be obtained. If the amount is more than 40%, a salty taste or the like is strongly exhibited and the feeling of use may be deteriorated. Note that other sodium salts cannot achieve the object of the present invention.

On the other hand, carrageenan, xanthan gum and sodium alginate may be used alone or in combination.
More than one species can be combined and blended. The compounding amount is 0.1 to 3 as the total amount of the thickener in the dentifrice composition.
It is preferably set to 0%, particularly 0.5 to 2.0%.

Polyethylene glycol has an average molecular weight of 9
Those having a range of 50 to 7000, particularly 950 to 4000 are preferable. If the average molecular weight is less than 950, the effect of suppressing liquid separation cannot be obtained. The blending amount of polyethylene glycol is 0.1-3.0% of the whole composition, especially 0.3-1.
0% is preferred. If it is less than 0.1%, the effect of suppressing liquid separation cannot be obtained, and if it exceeds 3.0%, bitterness or the like may occur and the feeling of use may be deteriorated.

In the present invention, the average molecular weight is 95
In addition to polyethylene glycol of 0 to 7000, polyethylene glycol having an average molecular weight smaller than 950 may be blended.

[0011] The dentifrice composition of the present invention may contain, in addition to the above-mentioned components, components as appropriate according to the type thereof, and may include abrasives, thickeners, surfactants, pH adjusters, and sweeteners. , A fragrance, a bactericide, a coloring agent and the like. Examples of the abrasive include dibasic calcium phosphate, calcium carbonate, calcium pyrophosphate, insoluble sodium metaphosphate, silicates (amorphous silicic anhydride, crystalline silicic anhydride, aluminosilicate, zirconosilicate, etc.), aluminum oxide,
Aluminum hydroxide, resin and the like can be blended. Sorbitol, glycerin, propylene glycol and the like can be blended as a thickener. As the surfactant, anionic surfactant sodium lauryl sulfate,
Sodium dodecylbenzenesulfonate, sodium lauryl sulfoacetate, sodium sodium lauroyl sarcosine and the like can be blended, and a nonionic or amphoteric surfactant can be blended. Organic acids and their salts such as citric acid and its salts, phosphoric acid and its salts, carbonic acid and its salts, malic acid and its salts, acetic acid and its salts as pH adjusters, saccharin sodium and stevioside as sweeteners, and preservatives As the agent, paraben or the like is used. In addition, l-menthol, carvone, eugenol, anethole, spearmint oil, peppermint oil and the like can be blended as a flavor. Examples of the bactericide include nonionic bactericides such as triclosan and paraoxybenzoic acid esters, and a cationic bactericide may also be added. Any of these can be used in a usual dose.

[0012]

The dentifrice composition containing sodium bicarbonate of the present invention suppresses liquid separation by blending polyethylene glycol with one or more selected from xanthan gum, carrageenan and sodium alginate. Excellent in stability.

[0013]

EXAMPLES Hereinafter, the present invention will be described in detail with reference to experimental examples and examples, but the present invention is not limited to the following examples.

Experimental Example 1 A dentifrice containing the components shown in Tables 1 and 2 having the following formulation was prepared. The skin roughness and liquid separation of these dentifrices were stored at 40 ° C. for one month and evaluated based on the following evaluation criteria. The results are shown in Tables 1 and 2.

Evaluation criteria for rough skin 肌 : No rough skin is observed and good △: Somewhat rough skin is observed ×: Evaluation of liquid separation where rough skin is observed ○: No liquid separation is observed and good △: Slightly liquid separation is observed ×: liquid separation is observed

[0016]

[Table 1]

[0017]

[Table 2]

As shown in Tables 1 and 2, polyethylene glycol 1000 to 6000 is added to a dentifrice containing sodium bicarbonate and one or more selected from xanthan gum, carrageenan and sodium alginate.
The effect of improving liquid separation was confirmed. Further, the result that the blending amount of polyethylene glycol is preferably in the range of 0.1% by weight or more was obtained.

Hereinafter, embodiments will be described. In addition, all% in each example are weight%. [Example 1] Toothpaste Silica anhydride 20% Xanthan gum 0.8 Carrageenan 0.3 Propylene glycol 3 Sodium lauryl sulfate 1.5 Sodium bicarbonate 30 Polyethylene glycol 4000 0.1 Sodium fluoride 0.2 Tranexamic acid 0.1 Butylparaben 0.05 Ethylparaben 0.05 Flavoring agent 0.1 Perfume 0.7 Purified water Balance 100%

[Example 2] Toothpaste Calcium carbonate 15% Xanthan gum 0.3 Carrageenan 0.4 Sodium alginate 0.5 Polyethylene glycol 4000 0.3 Sorbit 15 Propylene glycol 3 Sodium lauryl sulfate 1.5 Tocopherol acetate 0.1 Carbonate Sodium hydrogen 20 Sodium monofluorophosphate 0.7 Ethyl paraben 0.1 Triclosan 0.1 Flavoring agent 0.2 Fragrance 1.2 Purified water Balance 100%

Example 3 Toothpaste Silicic anhydride 15% Sodium alginate 0.5 Xanthan gum 0.5 Sorbit 10 Glycerin 10 Polyethylene glycol 1000 0.5 Sodium lauryl sulfate 2 Sodium bicarbonate 10 Sodium carbonate 2 Sodium monofluorophosphate 0.3 Sodium fluoride 0.1 Methyl paraben 0.2 Flavoring agent 0.1 Flavor 0.8 Purified water Balance 100%

Example 4 Toothpaste Aluminum hydroxide 30% Sodium alginate 0.9 Carrageenan 0.3 Polyethylene glycol 4000 1 Sorbit 10 Glycerin 5 Propylene glycol 3 Sodium lauryl sulfate 2.5 Triclosan 0.3 Sodium hydrogen carbonate 15 Mono Sodium fluorophosphate 0.75 Tocopherol acetate 0.1 Sodium benzoate 0.5 Flavoring agent 0.1 Fragrance 1.5 Purified water Balance 100%

Example 5 Toothpaste Silicic anhydride 15% Carrageenan 0.6 Xanthan gum 0.4 Polyethylene glycol 4000 0.5 Sorbit 15 Propylene glycol 3 Sucrose fatty acid ester 0.2 Sodium lauryl sulfate 1 Dextranase 0. 1 Triclosan 0.3 Sodium bicarbonate 10 Sodium hydroxide 0.5 Sodium fluoride 0.2 Ethyl paraben 0.1 Flavoring agent 0.1 Fragrance 0.5 Purified water Balance 100%

Example 6 Toothpaste Dicalcium phosphate 35% Sodium alginate 0.5 Xanthan gum 0.2 Carrageenan 0.4 Polyethylene glycol 4000 0.3 Polyethylene glycol 400 3 Sodium lauryl sulfate 1.2 Oubak extract 0.5 Carbonic acid Sodium hydrogen 20 Sodium carbonate 5 Sorbit 10 Methyl paraben 0.18 Flavoring agent 0.1 Fragrance 0.6 Purified water Balance 100%

Example 7 Toothpaste Silicic anhydride 10% Glycerin 10 Sodium lauryl sulfate 2 Sodium bicarbonate 10 Sodium carbonate 2 Xanthan gum 0.5 Carrageenan 0.4 Polyethylene glycol 6000 0.1 Propylene glycol 5 POE hydrogenated castor oil 0 .1 β-glycyrrhetinic acid 0.1 Methyl paraben 0.1 Triclosan 0.1 Fragrance 0.7 Purified water Balance 100%

Example 8 Toothpaste Silicic Anhydride 15% Glycerin 15 Sodium Lauryl Sulfate 1 Sodium Bicarbonate 15 Sodium Hydroxide 0.5 Xanthan Gum 0.3 Sodium Alginate 0.7 Polyethylene Glycol 4000 0.5 Propylene Glycol 3 POE Hardened cetyl ether 1.5 Dextranase 0.1 Sodium benzoate 0.5 Cetylpyridinium chloride 0.1 Perfume 1 Purified water Balance 100%

Claims (1)

[Claims] 1. A dentifrice composition containing sodium bicarbonate, further comprising one or more water-soluble polymer compounds selected from xanthan gum, carrageenan and sodium alginate, and polyethylene glycol. Toothpaste composition.