KR20170104996A

KR20170104996A - Dentifrice composition

Info

Publication number: KR20170104996A
Application number: KR1020177016627A
Authority: KR
Inventors: 테츠 후카사와
Original assignee: 라이온 가부시키가이샤
Priority date: 2015-01-26
Filing date: 2016-01-22
Publication date: 2017-09-18
Also published as: JP2016138047A; CN107205900A; WO2016121650A1

Abstract

It has a high dentinal tubule blocking effect and is excellent in the effect of suppressing the pH lowering, and the pH is prevented from lowering in the time of passage, the metal taste is suppressed and the feeling is good, (A) 0.01 to 5 mass% of aluminum lactate, 0.01 to 5 mass% of a condensed phosphate (B), and 0.1 to 3 mass% of (C) an -olefin sulfonate, (B) and 0.1 to 3% by mass of a component (C) in a skimming composition containing 0.01 to 5% by mass of the component (A) the present invention provides a method for inhibiting the pH drop and the expression of the metal taste.

Description

[0001] DENTIFRICE COMPOSITION [0002]

Disclosure of the Invention The object of the present invention is to provide a composition for oral administration which is capable of achieving a high blocking effect of ivory tubules and having an excellent effect of suppressing the decrease of pH and suppressing a decrease in pH at a time of aging, To a skirt composition containing aluminum lactate suitable for inhibiting the sensation of hypersensitivity.

Lactic acid (aluminum lactate) has a function of blocking dental carotid artery stenosis (clogging) and is effective for prevention or treatment of dentin hypersensitivity. However, when aluminum lactate is incorporated into an oral composition, pH is lowered over time, There is a problem in that detachment of teeth and oral mucous membrane detachment are caused by the teeth or stability is deteriorated, and also the expression of metal taste peculiar to aluminum is also a problem.

With respect to such a problem, Japanese Patent Application Laid-Open No. 10-231237 proposes a technique of preventing white turbidity and precipitation and improving stability by adding a sugar alcohol to a liquid oral composition containing aluminum lactate , Patent Document 2 (Japanese Unexamined Patent Application Publication No. 2013-119520) discloses a method in which an anionic surfactant, a specific water-soluble polymer substance, and propylene glycol alginate are mixed with a dentifrice composition containing potassium nitrate and / or aluminum lactate , A technique has been proposed in which sufficient bubble diets are secured and storage stability (liquid separation stability) is improved. However, there is no mention of pH fluctuation with time.

On the other hand, it is known that a condensed phosphate can be compounded with aluminum lactate in an oral composition, and Patent Document 3 (Japanese Patent Laid-Open No. 7-165550) discloses an oral composition which is effective for prevention and treatment of dental hypersensitivity, An oral band containing aluminum lactate and sodium pyrophosphate (Example 7) is described. Patent Document 4 (Japanese Patent Application Laid-Open No. 2002-302429) discloses a composition comprising a base material for a non-aqueous (non-aqueous) oral composition and sodium lactate as an acidic component together with an acidic sodium carbonate, Non-aqueous oral compositions are proposed, and sodium pyrophosphate and sodium polyphosphate are described as examples of dental deposit prevention ingredients that can be incorporated. Patent Document 5 (Japanese Patent Application Laid-Open No. 2004-26816) discloses that an oral composition containing a solid formulation can contain aluminum lactate, sodium pyrophosphate, sodium polyphosphate and the like.

Japanese Patent Application Laid-Open No. 10-231237 Japanese Patent Application Laid-Open No. 2013-119520 Japanese Patent Application Laid-Open No. 7-165550 Japanese Patent Application Laid-Open No. 2002-302429 Japanese Patent Application Laid-Open No. 2004-26816

However, it is difficult to say that the oral composition containing the aluminum lactate inhibits the decrease in the pH, and there is room for improvement, and development of a technique for more effectively inhibiting the pH decrease has been desired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has an object to provide a method for producing a dental carcinoembryonic acid composition which has a high dental tubule-blocking effect and is excellent in the effect of suppressing the pH drop, To provide a skirt composition of the present invention.

(A) 0.01 to 5% by mass of aluminum lactate, (B) 0.01 to 5% by mass of a condensed phosphate, and (C) α By adding 0.1 to 3% by mass of an olefin sulfonate salt, it is possible to achieve a high dental tubule-blocking effect with excellent pH-depressing effect, suppress pH-lowering with time, And that it can be suitably used for inhibiting the hypersensitivity, leading to the present invention.

That is, as shown in a comparative example to be described later, the dentifrice composition containing the aluminum lactate does not contain pyrophosphoric acid salts and? -Olefin sulfonic acid salts, and even if it contains sodium laurylsulfate as the anionic surfactant, (Comparative Example 7), and even if the amount of pyrophosphate and? -Olefin sulfonate is blended, if the amount is inadequate, if the pH is changed, the pH is lowered, Or a metallic taste or an oiliness (feeling of oil) is expressed, resulting in poor feeling of use (Comparative Examples 3 to 6). (B), (C), (C), and (C) -olefin sulfonic acid salts in combination with the aluminum lactate (A) ) Component exerted a specific action, and the effect of blocking the dental tubules by aluminum lactate was excellent. In addition, even when stored at 50 DEG C for 1 month, the pH change amount was less than 1.0, Can be prevented from being stabilized and tilted to an acidic state, and also the metal taste can be suppressed and the oily feeling can be prevented, and a good taste feeling can be obtained.

In this case, when the amount of the component (B) is too large, the metal taste derived from the component (A) is more strongly expressed, and when the amount of the component (C) is too large, C) are suitably combined, these problems can be solved completely and the above-mentioned specific action and effect can be given.

Therefore, the present invention provides a method for suppressing the pH drop and the expression of the metal taste in the skirt composition and skirt composition described below.

[One]

(A) 0.01 to 5% by mass of aluminum lactate, (B) 0.01 to 5% by mass of a condensed phosphate, and (C) 0.1 to 3% by mass of an alpha -olefin sulfonate.

[2]

The skirt composition according to [1], wherein the condensed phosphate as the component (B) is a pyrophosphoric acid salt or a tripolyphosphoric acid salt.

[3]

The skirt composition according to [1] or [2], wherein the (C) -olefin sulfonic acid salt is an alpha olefin sulfonic acid salt having 14 to 16 carbon atoms.

[4]

The skirt composition according to any one of [1] to [3], wherein the mass ratio of (B) / (A) is 0.005 to 50 and the ratio of (C) / (A)

[5]

The skirt composition according to any one of [1] to [4], wherein (D) 0.1 to 7 mass% of potassium nitrate is blended.

[6]

The skirt composition according to any one of [1] to [5], wherein the pH at 25 ° C is 5 or more.

[7]

A skirt composition according to any one of [1] to [6], which is prepared by a kneading agent.

[8]

(A) 0.01 to 5% by mass of (B) a condensed phosphate and (C) 0.1 to 3% by mass of (?) -? - olefin sulfonate in a skirt composition containing 0.01 to 5% by mass of aluminum lactate, A method for inhibiting the pH drop and the expression of a metal taste in a composition.

[9]

(A) is 0.005 to 50 in mass ratio, and (C) / (A) is in a mass ratio of 0.05 to 100. A method for suppressing the pH drop and the expression of metal taste in the skirt composition according to [8] .

[10]

Further, a method for suppressing the pH drop and the expression of the metal taste in the skirt composition according to [8] or [9], wherein (D) 0.1 to 7 mass% of potassium nitrate is blended.

[11]

A method for suppressing the pH drop and the expression of a metal taste in a skirt composition according to any one of [8] to [10], wherein the skirt composition has a pH of at least 5 at 25 占 폚.

[12]

A method for suppressing the pH drop and the expression of a metal taste in the skirt composition according to any one of [8] to [11], which is prepared by a continuous skimming agent.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a composition for preventing dental hypersensitivity, which has a high dental tubule-blocking effect and is excellent in the effect of inhibiting the pH lowering, suppressing the pH drop with time, It is possible to provide a suitable skirt composition containing aluminum lactate.

Hereinafter, the present invention will be described in more detail. The skirt composition of the present invention contains (A) aluminum lactate, (B) condensed phosphate and (C) -olefin sulfonate.

(A) Aluminum lactate is a reaction product of lactic acid and metallic aluminum, represented by the formula C ₉ H ₁₅ AlO ₉ , and is an odorless white powder. As an effect on the teeth, the effect of blocking dental tubules that constrict or obstruct dental tubules is known, and has the effect of alleviating dentin hypersensitivity caused by exposure of dental tubules. Commercially available aluminum lactate can be used.

The blending amount of the aluminum lactate as the component (A) is 0.01 to 5% (mass%, the same shall apply hereinafter), preferably 0.1 to 3%, and more preferably 1 to 2% of the entire composition. If it is blended at 0.01% or more, sufficient ivory tubule-blocking effect can be imparted. If the pH is not too much, the pH is sufficiently lowered to improve the feeling of use, and if it exceeds 5%, the tendency of the pH to drop becomes very strong, and the metal taste is strongly expressed.

In the present invention, by combining the combination of the condensed phosphate (B) and the (C) -olefin sulfonic acid salt, a high dental tubule-blocking effect is obtained, an excellent pH-lowering inhibiting effect is obtained, and a feeling of use is also improved. If the component (B) is not present, the decrease in pH can not be suppressed. If the component (C) is not used, the metal taste is not suppressed and the feel is poor.

As the condensed phosphate (B), a linear or cyclic condensed phosphate represented by the following general formula (1) or (2) can be used.

M _n _{+ 2} P _n O 3 _n ₊₁ (1)

(MPO ₃ ) _m (2)

(Wherein M represents Na or K, n is an integer of 2 or more, and m is an integer of 3 or more)

Examples of the linear polyphosphate represented by the general formula (1) include sodium pyrophosphate and potassium pyrophosphate in which n = 2, sodium tripolyphosphate and potassium tripolyphosphate in n = 3, sodium tetrapolyphosphate in n = 4 and tetra Potassium polyphosphate, sodium metaphosphate having high polymerization degree, potassium metaphosphate and the like.

Examples of the cyclic polyphosphate represented by the general formula (2) include sodium trimetaphosphate or potassium trimetaphosphate with m = 3, sodium tetrametaphosphate or potassium tetrametaphosphate with m = 4, hexametaphosphoric acid with m = Sodium or potassium hexametaphosphate.

These condensed phosphates may be used alone or in admixture of two or more kinds. Of these, linear, water-soluble condensed phosphates are preferable, and pyrophosphates, tripolyphosphates and especially pyrophosphates are more preferable. Is more preferable.

Specific examples thereof include commercially available products such as sodium pyrophosphate (manufactured by Taihei Chemical Industry Co., Ltd., Tohoku Chemical Industry Co., Ltd.), potassium pyrophosphate (manufactured by Taihei Chemical Industry Co., Ltd., Ltd.), sodium tripolyphosphate (manufactured by Taihei Chemical Industry Co., Ltd., manufactured by Nipponbuild Co., Ltd.) can be used.

The blended amount of the condensed phosphate as the component (B) is 0.01 to 5%, preferably 0.1 to 1%, and more preferably 0.3 to 0.5% of the whole composition. When the blending amount is 0.01% or more, a satisfactory effect of suppressing the decrease in pH can be imparted. If it is not too much, it is suitable for the improvement of feeling. If it exceeds 5%, the metal taste is strongly expressed and the feeling of use is lowered.

As the? -Olefin sulfonic acid salt (C), an alkali metal salt such as sodium salt of? -Olefin sulfonic acid having 14 to 16 carbon atoms, potassium salt and the like can be used and? -Olefin sulfonic acid salt of carbon number 14, ; Sodium tetradecenesulfonate) is preferable.

As these? -Olefin sulfonic acid salts, commercially available products can be used. Specifically, sodium tetradecenesulfonate (sodium alpha -olefin (C14) sulfonate, manufactured by Lion Specialty Chemicals Co., Ltd., "K Liporan PJ-400CJ") and the like can be used.

The? -Olefin sulfonic acid salt includes a hydroxyalkyl sulfonic acid salt as a by-product, and the ratio is not particularly limited, but is usually 20% or less. However, such an? -Olefin sulfonic acid salt can be used in the present invention have.

The amount of the? -Olefin sulfonate as the component (C) is from 0.1 to 3%, preferably from 0.5 to 2%, and more preferably from 0.7 to 1.5%, of the entire composition. If the amount is within the above range, the feeling of use can be improved. When the blending amount is less than 0.1%, the metal taste can not be suppressed. When the blending amount is more than 3%, the oil feeling is strongly expressed, and the taste is deteriorated and the feeling of use is poor.

Also, even when an anionic surfactant or an alkyl sulfate such as sodium lauryl sulfate is combined with (B) a condensed phosphate, (A) the deterioration of the feeling of use by aluminum lactate is not improved and the object of the present invention is not achieved .

In the present invention, when the components (B) and (C) are combined at a suitable ratio to the component (A), the effect of suppressing the pH drop is further improved and the feeling of use can be further improved.

In this case, (B) / (A), which represents the amount of the component (B) relative to the amount of the component (A), may be 0.005 to 50 in terms of the mass ratio, but is preferably 0.005 to 5, 3. The mass ratio of (C) / (A) representing the amount of the component (C) to the amount of the component (A) may be 0.05 to 100, preferably 0.05 to 3, more preferably 0.3 to 1 to be.

(B) / (A) and / or (C) / (A) falls within the above range, the effect of the present invention is more excellent.

In the present invention, (D) potassium nitrate may be added. Potassium nitrate alleviates pain caused by hypersensitivity and is effective as a hypersensitive hypersensitive component.

The amount of potassium nitrate as the component (D) is preferably from 0.1 to 7%, more preferably from 0.5 to 5%, of the entire composition. Addition within this range is suitable for enhancing the perineural hypersensitive effect. It is also suitable for suppressing the pH lowering effect and the metal taste of the present invention.

The skirt composition of the present invention preferably has a pH at 25 ° C of 5 or more, particularly 5 to 10, more preferably 6 to 8, and it is preferable to adjust the pH to such a value. If the pH is 5 or more, a sufficient ivory tubule-blocking effect is exhibited and it is suitable for use.

When the pH is adjusted, a pH adjuster may be added. For example, hydroxides, hydrogencarbonates, carbonates and the like of an alkali metal such as sodium hydroxide may be added.

The skirt composition of the present invention is suitably prepared as a soft skirt, a liquid skirt, a lean skirt and the like, especially a soft skirt. Further, in addition to the above-mentioned components, other known components may be blended as needed within a range not hindering the effect of the present invention. For example, an abrasive, a binder, a tackifier, a surfactant and, if necessary, a sweetener, a colorant, a preservative, a fragrance, and an effective ingredient may be blended in a softener. In addition, water can be mixed as a liquid medium and can be prepared by a conventional method.

Examples of the abrasive include a silica-based abrasive such as precipitated silica, aluminosilicate, and zirconosilicate, a calcium phosphate-based compound, calcium carbonate, aluminum hydroxide, and a synthetic resin abrasive. The blending amount of the abrasive is usually 10 to 50% in the soft skirt and 0 to 30% in the liquid skirt.

Examples of the binders include organic binders such as carrageenan, xanthan gum and the like, cellulose derivatives such as carboxymethylcellulose sodium and the like, gelling silica, and inorganic gums such as gelatinizable aluminum silica. The blending amount of the viscous solution is usually 0.1 to 10%, preferably 0.1 to 5% in soft skirt, and 0 to 5% in liquid skirt.

Examples of the viscosifier include sugar alcohols such as sorbit, xylitol and propylene glycol, and polyhydric alcohols. The blending amount of the viscous agent is usually 5 to 50%, particularly preferably 20 to 45%.

As the surfactant, anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants can be mixed.

Examples of the anionic surfactant include alkylsulfates such as sodium laurylsulfate. Examples of the nonionic surfactant include polyoxyethylene fatty acid esters such as polyoxyethylene hardened castor oil having an average addition mole number of ethylene oxide of 5 to 60, sugar fatty acid esters, sugar alcohol fatty acid esters, polyglycerin fatty acid esters, polyoxyethylene higher alcohols Ether, and the like.

Examples of cationic surfactants include alkylammoniums, and amphoteric surfactants include betaines and imidazolines.

The blending amount of the surfactant can be adjusted in accordance with the form, purpose of use, and the like, for example, 0 to 10% in the soft skirt and 0 to 5% in the liquid skirt.

As the sweetening agent, saccharin sodium and the like can be mentioned. As the coloring agent, blue No. 1, yellow No. 4, titanium dioxide and the like can be mentioned. Examples of the preservative include paraoxybenzoic acid esters such as methylparaben and ethylparaben, benzoic acid or salts thereof, and the like.

Examples of the perfume include perfume oils such as peppermint oil, spearmint oil, anise oil, eucalyptus oil, wintergreen oil, cassia oil, clove oil, time oil, sage oil, lemon oil, orange oil, peppermint oil, cardamon oil, coriander oil, mandarin oil, The present invention relates to a method for producing a flavor enhancer and a flavor enhancer which can be used as a flavor enhancer and a flavor enhancer in a flavor enhancer such as lavender oil, rosemary oil, laurel oil, camomile oil, caraway oil, marjoram oil, bayu, lemongrass oil, Natural fragrance such as oil free, iris concrete, Absolute Peppermint, Absolute Rose and orange flower, and processing of these natural fragrances (such as cutting of the current portion, cutting of the wake portion, classification, Liquid, liquid) extract, essence, powder, flavor, etc.) and flavorings such as menthol, carboen, anethole, cineol, methyl salicylate, cinnamic aldehyde, ogenol, 3-l-menthoxypropane- 2-diol, thymol, linalool, linalyl acetate, limonene, menton, menthyl acetate, N-substituted-parramentane-3-carboxamide, pinene, octylaldehyde, citral, fullergan, carvir acetate, anisaldehyde, ethyl acetate, ethyl butyrate, allyl cyclohexane propionate, methyl anthranilate , Ethylmethylphenylglycidate, vanillin, undecalactone, hexanal, butanol, isoamylalcohol, hexenol, dimethylsulfide, cyclotene, furfural, trimethylpyrazine, ethyl lactate, ethyl thioacetate and the like Flavor and flavor as well as a combination flavor such as Strawberry Flavor, Apple Flavor, Banana Flavor, Pineapple Flavor, Grape Flavor, Mango Flavor, Butter Flavor, Milk Flavor, Fruit Mix Flavor and Tropical Flavor Flavor Known fragrance materials may be used in combination, but the present invention is not limited to the fragrances described in the examples.

The blending amount is not particularly limited, but it is preferable that the above-mentioned perfume material is used in an amount of 0.000001 to 1% in the formulation composition. As the fragrance for vending machine using the fragrant material, it is preferable to use 0.1 to 2% in the composition of the preparation.

As the active ingredient, there can be blended conventionally known ingredients commonly used in the skimming composition such as a bactericide, an anti-inflammatory agent, an enzyme, a fluoride, a plant extract, an anti-calculus agent, a plaque inhibitor and the like. Examples thereof include nonionic bactericides such as isopropylmethylphenol, cationic bactericides, tranexamic acid, eiclononaminocaproic acid, anti-inflammatory agents such as allantoin, enzymes such as dextranase, fluorides such as sodium fluoride and sodium monofluorophosphate And the like. The effective ingredient may be blended in an effective amount within a range not hindering the effect of the present invention.

Example

Hereinafter, the present invention will be described in detail by way of examples, comparative examples, and formulations, but the present invention is not limited to the following examples. In the following examples,% represents mass% unless otherwise specified.

[Practical example, comparative example]

A skirt composition (open skirt) having the compositions shown in Tables 1 to 3 was prepared by a routine method and evaluated by the following method. The results are shown in Tables 1 to 3.

The skirt composition was adjusted so that the pH at 25 캜 was 7.0.

(1) Evaluation method of ivory tubule blocking effect

According to the method of Pashley (J. Dent. Res. 57, 187-193, 1987), the passage of the liquid of the dentinal tubules was measured and the degree of blocking of the dentinal tubules by each skimming composition was evaluated.

A dentin block was cut out from a human root and polished with a domestic polishing pad # 2000 to prepare a sample, which was then used as a sample. 3 g of the skim composition, 6 g of artificial saliva of pH 7.0 containing 1 mM of substantial CaCl ₂ and 3 mM of KH ₂ PO ₄ was mixed to make a 3-fold dilution, and the supernatant obtained by centrifugation was used as a treatment solution. The 3-fold dilution is based on the assumption that the skirt composition is diluted with the saliva when the tooth is wiped. The sample was immersed in the treatment solution for 1 minute, rinsed with distilled water, and then immersed in the artificial saliva for 12 hours at 37 占 폚. The same operation was performed twice a day, and this series of operations was repeated for a total of 5 days. The last sample was rinsed well with distilled water, and after drying, the sample was fixed and a physiological saline solution was flowed under a certain pressure to measure the amount of physiological saline per unit time passing through the sample. The amount of physiological saline per unit time passing through the sample was measured. The inhibition rate was calculated (the following formula). The evaluation was carried out with n = 3, and the average value was adopted.

Percent inhibition (%) =

((Amount of passage of liquid before treatment - amount of passage of liquid after treatment) / (amount of passage of liquid before treatment)) x 100

Passage amount: The amount of physiological saline (l)

From the average value of the obtained rate of passage inhibition, the degree of dacryocystocele blockage was judged according to the following evaluation criteria, and the effect of blocking the dacitic tubule was evaluated.

Evaluation criteria for iv effect;

?: Passability inhibition rate is 90% or more

○: Percent inhibition rate is 80% or more and less than 90%

DELTA: Passage inhibition rate is 60% or more and less than 80%

X: Percent inhibition rate is less than 60%

(2) Method for evaluating the effect of suppressing the decrease in pH

The pH at 25 占 폚 immediately after the preparation of the skimming composition was measured in advance, the skimming composition was filled in a laminated tube in an amount of 50 g, and the pH after storage at 50 占 폚 for one month was measured (value at 25 占 폚).

The amount of change in pH was calculated from the following formula, and the inhibitory effect of pH reduction was judged by the following evaluation criteria.

pH change amount =

(PH of skirt composition immediately after preparation) - (pH of skirt composition after storage for 1 month at 50 캜)

an evaluation criterion of the effect of inhibiting the pH drop;

◎: pH change amount less than 0.5

○: pH change amount is 0.5 or more and less than 1.0

?: PH change amount is 1.0 or more and less than 1.5

X: a pH change amount of 1.5 or more

(3) Evaluation method of use feeling

(3-1) No metal taste

Approximately 1 g of the skirt composition was taken on a toothbrush, and the metal taste at the time of 3-minute wiping was judged by the test subjects based on the following criteria.

Rating criteria for the absence of metal taste;

5 points: I do not feel at all

4 points: I feel a little bit.

3 points: I feel

2 points: I feel strong

1 point: I feel very strongly

The average value of 10 persons was determined, and the absence of metal taste was judged by the following evaluation criteria.

Evaluation criteria for absence of metal taste;

◎: average score of 10 or more is 4.0 or more

○: The average score of 10 persons was 3.0 or more and less than 4.0

△: average score of 10 persons is 2.0 points or more and less than 3.0 points

X: Average score of 10 persons less than 2.0 points

(3-2) No oiliness

Approximately 1 g of the skirt composition was taken on a toothbrush, and the oily feeling at the time of 3-minute wiping was judged by the test subjects based on the following criteria.

Rating criteria of absence of oiliness;

5 points: I do not feel at all

4 points: I feel a little bit.

3 points: I feel

2 points: I feel strong

1 point: I feel very strongly

The average value of 10 persons was determined, and the absence of oiliness was judged by the following evaluation criteria.

Evaluation criteria for absence of oiliness;

◎: average score of 10 or more is 4.0 or more

○: The average score of 10 persons was 3.0 or more and less than 4.0

△: average score of 10 persons is 2.0 points or more and less than 3.0 points

X: Average score of 10 persons less than 2.0 points

Details of the raw materials used are shown below.

(A) Aluminum lactate; Musashino Chemical Research Institute Co., Ltd.

(B) sodium pyrophosphate; Manufactured by Taihei Chemical Industry Co., Ltd.

(B) sodium tripolyphosphate; Manufactured by Taihei Chemical Industry Co., Ltd.

(C) sodium? -Olefin sulfonate; Made by Lion Specialty Chemicals Co., Ltd.

(D) potassium nitrate; Manufactured by Otsuka Chemical Co., Ltd.

[Table 1]

[Table 2]

[Table 3]

Hereinafter, a prescription example is shown. The raw materials used are the same as described above, and the pH of the preparation at 25 캜 is within the range of 5 to 10.

[Prescription Example 1]

(A) Aluminum lactate 2

(B) Sodium pyrophosphate 0.5

(C) Sodium? -Olefinsulfonate 1

(D) Potassium nitrate 5

Sodium fluoride 0.33

Anhydrous silicic acid 18

Sodium lauryl sulfate 1.0

70% sorbitol solution 25

Propylene glycol 3

Xanthan gum 0.8

Saccharin sodium 0.2

Fragrance 1.2

Water balance

Total 100.0%

[Prescription Example 2]

(A) Aluminum lactate 1.5

(B) Sodium pyrophosphate 1

(C) Sodium? -Olefinsulfonate 1

(D) Potassium nitrate 5

Sodium monofluorophosphate 1.1

Anhydrous silicic acid 20

Sodium lauryl sulfate 1.5

70% sorbitol solution 30

Propylene glycol 3

Xanthan gum 0.8

Saccharin sodium 0.3

Fragrance 1.4

Water balance

Total 100.0%

Claims

(A) 0.01 to 5 mass% of aluminum lactate, (B) 0.01 to 5 mass% of a condensed phosphate, and (C) 0.1 to 3 mass% of an alpha -olefin sulfonate.

The method according to claim 1,
Wherein the condensed phosphate as the component (B) is a pyrophosphate or a tripolyphosphate.

3. The method according to claim 1 or 2,
(C) the? -Olefin sulfonic acid salt is an? -Olefin sulfonic acid salt having 14 to 16 carbon atoms.

4. The method according to any one of claims 1 to 3,
(B) / (A) is 0.005 to 50 mass%, and (C) / (A) is a mass ratio of 0.05 to 100.

5. The method according to any one of claims 1 to 4,
And (D) 0.1 to 7% by mass of potassium nitrate.

6. The method according to any one of claims 1 to 5,
Lt; RTI ID = 0.0 > 25 C < / RTI >

7. The method according to any one of claims 1 to 6,
Wherein the skirt composition is prepared as a continuous skimming agent.

(B) 0.01 to 5% by mass of a condensed phosphate and (C) 0.1 to 3% by mass of an? -Olefin sulfonate in (A) 0.01 to 5% by mass of aluminum lactate Wherein said skimming composition has a pH lowered and a metal taste is suppressed.

9. The method of claim 8,
Wherein the ratio of (B) / (A) is 0.005 to 50 in terms of mass ratio and (C) / (A) is in the range of 0.05 to 100 in mass ratio.

10. The method according to claim 8 or 9,
And (D) 0.1 to 7% by mass of potassium nitrate is added to the skimming composition.

11. The method according to any one of claims 8 to 10,
Wherein the skirt composition has a pH of at least 5 at 25 DEG C, wherein the pH drop and the expression of the metal taste are suppressed in the skirt composition.

The method according to any one of claims 8 to 11,
And a method of suppressing the pH drop and the expression of the metal taste in the skirt composition.