JPH10182386A - Tooth cleaning agent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a tooth cleaning agent capable of improving stain removing effects on the surface of tooth and effectively eliminating plaque, tar of cigarette, etc., comprising a specific straight-chain or cyclic water-soluble polyphosphate and a natural scrubbing agent. SOLUTION: This tooth cleaning agent is obtained by formulating (A) 1-10wt.% of a straight-chain or cyclic water-soluble polyphosphate of the formula Mn+2 Pn O3m+1 (M is Na or K; (n) is >=2) (e.g. potassium pyrophosphate) or a compound of the formula (MPO3 )m ((m) is >=3), (B) >=1wt.%, preferably 5-50wt.% of a natural scrubbing agent (e.g. crystalline cellulose) which is water-insoluble fine particles derived from an animal or a plant and has 0.05-1mm average particle diameter (dried state) and optionally (C) an abradant, a binder, a thickening agent, a surfactant, a sweetener, an antiseptic, a perfume, various active ingredients, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tooth cleaning material having a high cleaning effect on tooth surfaces.

[0002]

2. Description of the Related Art
Stains, plaques, food debris attached or deposited on the tooth surface,
Background Art Dirt on tooth surfaces such as cigarette tar is removed by mechanical action of an abrasive compounded in a dentifrice.
The properties required of this abrasive include a high tooth surface cleaning effect and a low tooth surface abrasion. In general, dentifrice compositions contain an inorganic powder such as calcium phosphate or calcium carbonate as an abrasive.However, when using a dentifrice composition containing these abrasives, the soft cervical region and the like may be slightly reduced. Both were inevitable to wear.

[0003] For this reason, the following proposals have been made to remove tooth fouling by a chemical action instead of merely a mechanical action. At present, most of the removal is dependent on mechanical action. (1) An oral composition containing a specific organic peroxide (US Pat. No. 3,988,433). (2) An oral composition using a combination of a cationic surfactant and malic acid (US Pat. No. 4,183,916). (3) An oral composition containing an ester having an aromatic ring (Japanese Patent Publication No. 48-43869). (4) An oral composition containing a chelating agent having a stability coefficient of Fe> Ca (Japanese Patent Application Laid-Open No. 51-139,939). (5) An oral composition using a combination of a polyphosphate and a polyvalent metal cation (JP-A-52-108029). (6) An oral composition using phytic acid and an organic acid in combination (JP-A-56-18911). (7) tartronic acid, glyceric acid, hydroxy-n-
An oral composition containing butyric acid and dihydroxymalonic acid (JP-A-60-4117). (8) A composition for oral cavity using a combination of carvone, anethole or 3-octanol and a solvent extract of a botanical genus plant (JP-A-61-286315). (9) An oral composition containing 2-octanol (JP-A-62-151498). (10) An oral composition containing a specific monoterpene (JP-A-62-181212). (11) An oral composition containing an aliphatic ester having a total carbon number of 7 to 11 (JP-A-62-189233). (12) An oral composition containing citric acid, a polyphosphate and a nonionic surfactant (JP-A-7-126131). (13) An oral composition containing a polyphosphate, an orthophosphate and an amphoteric surfactant (Japanese Patent Application No. 7-184838).
issue). (14) Oral composition containing polyphosphate, orthophosphate and alkyl sulfate (Japanese Patent Application No. 7-184839)
issue).

[0004] The present invention has been made to improve the above circumstances, and has as its object to provide a tooth cleaning material having an excellent effect of removing dirt on the tooth surface.

[0005]

Means for Solving the Problems and Embodiments of the Invention The present inventors have conducted intensive studies to achieve the above object, and as a result, the following general formula (1) or (2): _{Mn + 2Pn} O _{3n + 1} (1) (MPO ₃ ) _m (2) (where M represents Na or K, and m and n each represent 3
Is an integer greater than or equal to. )) And one or more linear or cyclic water-soluble polyphosphates,
It has been found that by adding a natural scrub, the effect of removing stains on the tooth surface is significantly increased, and stains such as stains, plaques and cigarette tars can be effectively removed.

[0006] That is, the natural scrubbing agent refers to water-insoluble fine particles derived from animals and plants, and is a hard particle having a cornered shape in a dry state. Absorb moisture and become round and elastic particles. This particle alone has no cleaning effect on the tooth surface, but found that when mixed with a water-soluble polyphosphate in a tooth cleaning material, the effect of removing the dirt on the tooth surface of the water-soluble polyphosphate is remarkably increased. This is what led to the invention.

Hereinafter, the present invention will be described in more detail. The tooth cleaning material of the present invention is obtained by combining a water-soluble polyphosphate and a natural scrub as described above.

The water-soluble polyphosphate used in the present invention is represented by the following formula (1): M _{n + 2} P _n O _{3n + 1} (1) (where M represents Na or K and n ≧ 3 ), That is, sodium tripolyphosphate and potassium tripolyphosphate having a polymerization degree n = 3, sodium tetrapolyphosphate and potassium tetrapolyphosphate having n = 4, sodium metaphosphate and potassium metaphosphate having a high polymerization degree, and the like. And a linear polyphosphate represented by the following formula (2) (MPO ₃ ) _m (2) (where M represents Na or K and m ≧ 3), that is, polymerization Sodium trimetaphosphate and potassium trimetaphosphate with a degree m = 3, sodium tetrametaphosphate and potassium tetrametaphosphate with m = 4, m =
6, a cyclic polyphosphate such as sodium hexametaphosphate or potassium hexametaphosphate is used.

These polyphosphates may be used alone or in combination of two or more. Among them, linear polyphosphates are preferred.

The compounding amount of the above polyphosphate in the tooth cleaning material of the present invention is preferably 1 to 10% by weight, particularly preferably 3 to 7% by weight, based on the whole composition. If the amount is less than 1% by weight, even when used in combination with the natural scrub agent of the present invention, a sufficient stain cleaning effect cannot be obtained, and the object of the present invention cannot be achieved. If the content exceeds 10% by weight, polyphosphate crystals may precipitate.

The natural scrub agent used in the present invention refers to water-insoluble fine particles derived from animals and plants. When it absorbs water as described above, it alone has almost no cleaning effect on the tooth surface. Specific examples of natural scrubbing agents include, as plant-based materials, crystalline cellulose, crushed mulberry bark or hemp skin or crushed rhizome, crushed seed core hulls such as sunflower and watermelon, apricot, walnut, peach, etc. The crushed fruit seed husks, corn cobs and rice straw are used. In addition, crushed silk or the like is used as an animal material. These natural scrubbing agents are used alone or as a mixture of two or more.

[0012] The particle size of the natural scrub agent in the tooth cleaning material of the present invention is 0.05 to 1 in a dry state.
If the diameter is smaller than 0.05 mm, a sufficient dirt washing effect cannot be obtained even when used in combination with a polyphosphate, and the object of the present invention may not be achieved in some cases. Also, 1
If it is larger than mm, the feeling during use may be uncomfortable.

The amount of the natural scrub agent in the tooth cleaning material of the present invention is 1% by weight or more, preferably 5 to 50% by weight, based on the whole composition. If the amount is less than 1% by weight, a sufficient cleaning effect may not be obtained even when used in combination with a polyphosphate.

The tooth cleaning material of the present invention may contain, if necessary, an abrasive, a binder, a thickener, a surfactant, a sweetener, a preservative, a fragrance, various active ingredients, and the like. A component that does not release calcium ions is suitably used in the tooth cleaning material of the present invention. If this contains components that release calcium ions, the released calcium ions
This is because the purpose of the present invention may not be achieved because the chemical detergency of the polyphosphate is impaired.

Specifically, examples of the abrasive include crystalline silica, amorphous silica, other silica-based abrasives, aluminosilicate, zirconosilicate, aluminum oxide, aluminum hydroxide, insoluble sodium metaphosphate, and insoluble metallin Potassium acid, titanium oxide, synthetic resin and the like are used as needed. One or more of these abrasives can be blended (usually in a blending amount of 3 to 90% by weight). Examples of the binder include carrageenan, sodium carboxymethylcellulose, methylcellulose, hydroxyethylcellulose, cellulose derivatives such as carboxymethylhydroxyethylcellulose sodium, alkali metal alginate such as sodium alginate, propylene glycol alginate, xanthan gum, tragacanth gum, karaya gum, gum arabic gum and the like. One or two of inorganic binders such as gums, polyvinyl alcohol, sodium polyacrylate, carboxyvinyl polymer, synthetic binders such as polyvinylpyrrolidone, gelling silica, gelling aluminum silica, veegum, laponite and the like. More than one kind can be blended (normal blending amount 0.5 to
10% by weight). As the thickener, sorbitol, glycerin, ethylene glycol, propylene glycol, 1,
One or more of 3-butylene glycol, polyethylene glycol, polypropylene glycol, xylit, maltit, lactit and the like can be blended (normal blending amount: 1 to 50% by weight).

Examples of the surfactant include a water-soluble salt of a higher alkyl sulfate having an alkyl group having 8 to 18 carbon atoms, such as sodium lauryl sulfate and sodium myristyl sulfate, sodium lauryl monoglyceride sulfonate, and coconut monoglyceride sulfonate. Water-soluble salts of higher fatty acid monoglyceride sulfonic acid having 10 to 18 carbon atoms in the fatty acid group such as sodium, olefin sulfonate, paraffin sulfonate, other anionic activators, stearyl monoglyceride, sucrose mono and dilaurate, etc. The fatty acid group has 12 carbon atoms
Sorbitan mono to which sucrose fatty acid ester, lactose fatty acid ester, lactitol fatty acid ester, maltitol fatty acid ester, stearic acid monoglyceride, polyoxyethylene sorbitan monolaurate, polyoxyethylene hydrogenated castor oil, ethylene glycol about 60 mol are added Nonionic activators such as stearate condensates, ethylene oxide and propylene oxide polymers and derivatives such as polyoxyethylene polyoxypropylene monolauryl ester, betaine type,
A surfactant such as an amphoteric surfactant such as an amino acid type is used (usually 0.01 to 7% by weight). Further, as a sweetener, saccharin sodium, stevioside, neohesperidyl dihydrochalcone, glycyrrhizin, perillartin, thaumatin, asparatyl phenylalanine methyl ester, p-methoxycinnamic aldehyde, sucrose, lactose, fructose, sodium cyclamate, etc. -Hydroxymethylbenzoic acid, p
-Hydroxyethyl benzoic acid, p-hydroxypropyl benzoic acid, p-hydroxybutyl benzoic acid, sodium benzoate, lower fatty acid monoglyceride, etc., as a fragrance, such as wintergreen oil, spearmint oil, peppermint oil, peppermint oil, sassafras oil, crease oil, Eucalyptus oil and the like may be blended. In addition, gelatin, peptone, arginine hydrochloride, albumin, whitening agents, silicone, pigments, and other components can be added. Furthermore, epsilon aminocaproic acid, tranexamic acid,
Enzymes such as dextranase, amylase, protease, mutanase, lysozyme, lytic enzyme, and lytic enzyme, alkali metal monofluorophosphates such as sodium monofluorophosphate and potassium monofluorophosphate, sodium fluoride, ammonium fluoride, etc. Fluoride, chlorhexidine salts, dihydrocholesterol, glycyrrhetin salts, glycyrrhetinic acid, chlorophyll, caropeptides, vitamins, anticalculus agents, antibacterial agents, antiplaque agents, one or more active ingredients such as hypersensitivity desensitizers such as potassium nitrate Two or more may be blended.

[0017]

The tooth cleaning material according to the present invention can effectively remove stains on the tooth surface such as stains, plaques and cigarette tars, and increases the whitening effect on the tooth surface. Further, since the cleaning effect of the tooth cleaning material is extremely high, the amount of the abrasive can be reduced when preparing toothpaste.

[0018]

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. In the following examples,% indicates% by weight.

[Experimental Example] A hydroxyapatite disk (HA plate, hereinafter the same, manufactured by Asahi Optical Co., Ltd., φ7 × 3 mm) was fixed to a mouthpiece, mounted in the mouth (mandibular tongue side) and placed on the HA plate. A pellicle was formed. This was placed in an apparatus for alternately immersing it in a stain solution and drying in the air, and operated for 24 hours to deposit stain on the surface of the HA plate. The composition of the stain solution is as follows. Stain solution composition Ferrous chloride n-hydrate 0.05% Instant coffee 0.37% Instant black tea 0.37%

The stained HA plate was immersed in the sample solution shown in Table 1 for 5 minutes, subjected to reciprocal brushing five times, and then stained with a 10% phloxine solution to stain the pellicle to obtain a color difference (Lab coloration). System) was measured. This removal operation (immersion → brushing → color difference measurement) was repeated until the stain was completely removed (until the color difference of the HA plate became equal to that before the stain was attached). The smaller the number of times of brushing, the higher the cleaning power. Table 1 shows the results.

[0021]

[Table 1] 1) Sodium polyacrylate 1.0%, carboxymethyl cellulose sodium 1.1%, carrageenan 0.2%, sodium lauryl sulfate 1.5%, glycerin 35.0% Contains 0.15% saccharin sodium and 1.0% fragrance. 2) ◎: Number of times of brushing less than 15 ○: Number of times of brushing 15 or more and less than 20 times △: Number of times of brushing 20 or more and less than 30 times ×: Number of times of brushing 30 or more

From the results shown in Table 1, it was found that the cleansing power of the stain was specifically enhanced by blending the natural scrub with the system containing the water-soluble polyphosphate.

Example 1 Propylene glycol 3.0% Sorbitol 20.0 Sodium carboxymethyl cellulose 1.4 Sodium polyacrylate 1.0 Sodium saccharin 0.1 Stevioside 0.1 Potassium glycyrrhizinate 1.0 Sodium lauryl sulfate 5 sodium N-lauroylglutamate 0.5 tranexamic acid 0.05 α-alumina anhydride 3.0 colloidal silica 3.0 methyl paraben 0.05 fragrance 1.0 tetrasodium pyrophosphate 5.0 crystalline cellulose (average particle size 0) .15mm) 10.0 water balance 100.0%

Example 2 Propylene glycol 2.0% glycerin 20.0 Sodium hydroxyethyl cellulose 1.4 Saccharin sodium 0.1 Sodium lauryl sulfate 0.5 Lauryl POE sodium sulfate 0.5 Colloidal silica 3.0 Monofluorophosphine Sodium citrate 0.76 Chlorhexidine gluconate 0.1 Methyl paraben 0.05 Fragrance 1.0 Tetrapotassium pyrophosphate 2.0 Sodium tetrapolyphosphate 2.0 Silk powder (average particle size 0.08 mm) 20.0 Water balance 100 0.0%

Example 3 Titanium oxide 0.5% Sodium carboxymethylcellulose 1.1 Sodium polyacrylate 1.0 Carrageenan 0.2 Sodium lauryl sulfate 1.4 Sorbit solution 20.0 Glycerin 20.0 Propylene glycol 3. 0 Methylparaben 0.05 Saccharin sodium 0.15 Fragrance 1.0 Tetrasodium pyrophosphate 1.5 Potassium pyrophosphate 4.5 Potassium apricot seed hulls (average particle size 0.3 mm) 10.0 Water balance 100.0 %

Example 4 Titanium oxide 0.5% Sodium carboxymethyl cellulose 1.1 Carrageenan 0.2 Sodium lauryl sulfate 1.4 Sorbit solution 20.0 Glycerin 20.0 Propylene glycol 3.0 Methyl paraben 0.05 Saccharin sodium 0 .15 Fragrance 1.0 Tetrasodium pyrophosphate 2.5 Tetrapotassium pyrophosphate 3.1 Microcrystalline cellulose (average particle size 0.5 mm) 20.0 Water Balance 100.0%

Example 5 Silicic anhydride 10.0% 60% sorbitol solution 25.0 Glycerin 25.0 Propylene glycol 5.0 Xanthan gum 0.2 N-Lauroyl glutamate 0.5 Sodium lauryl sulfate 0.5 Carrageenan 0.5 Alginic acid 1.0 Sodium fluoride 0.22 Dextranase 20u / g Toothpaste Sodium saccharin 0.1 Fragrance 1.0 Sodium tripolyphosphate 3.0 Silk powder (average particle size 0.2mm) 10.0 Water balance 100.0%

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[Procedure amendment]

[Submission date] June 20, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

Detailed Description of the unit and the invention to an aspect of the present invention have conducted intensive investigations to achieve the above objects, the following general formula (1) or _{(2) M n + 2 P} n O 3n + 1 ... (1) (MPO ₃ ) _m ... (2) (where M represents Na or K, n is 2 or more, and m is 3
Is an integer greater than or equal to. )) And one or more linear or cyclic water-soluble polyphosphates,
It has been found that by adding a natural scrub, the effect of removing stains on the tooth surface is significantly increased, and stains such as stains, plaques and cigarette tars can be effectively removed.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] As the water-soluble polyphosphates for use in the present invention has the following formula _{(1) M n + 2 P} n O 3n + 1 ... (1) ( however, M represents a Na or K, an n ≧ 2.) In What is shown, that is, sodium pyrophosphate and potassium pyrophosphate having a polymerization degree n = 2, sodium tripolyphosphate and potassium tripolyphosphate where n = 3, sodium tetrapolyphosphate and potassium tetrapolyphosphate where n = 4, and a high polymerization degree Linear polyphosphates such as sodium metaphosphate and potassium metaphosphate, and the following formula (2) (MPO ₃ ) _m (2) (where M represents Na or K and m ≧ 3) Ie, sodium trimetaphosphate or potassium trimetaphosphate having a degree of polymerization m = 3, sodium tetrametaphosphate or potassium tetrametaphosphate having m = 4. , M =
6, a cyclic polyphosphate such as sodium hexametaphosphate or potassium hexametaphosphate is used.

Claims (1)

[Claims] 1. The following general formula (1) or (2): M _{n + 2} P _n O _{3n + 1} (1) (MPO ₃ ) _m (2) (where M represents Na or K and m , N are each 3
Is an integer greater than or equal to. )) And one or more linear or cyclic water-soluble polyphosphates,
A tooth cleaning material comprising a natural scrub.