JP2020196698A - Denture detergent composition and foamy denture detergent product - Google Patents

Abstract

To provide a denture detergent composition and a foamy denture detergent product that are filled in a container that ejects the content in the form of foam, can be applied to dentures in the form of foam in use, with an excellent foam volume and durability, and in particular, gives a high cleaning effect against oil stains.SOLUTION: Provided is a denture detergent composition that contains (A) an anionic surfactant and (B) a water-soluble polymer substance, and is applied to denture surfaces in the form of foam. Also provided is a foamy denture detergent product configured such that the denture detergent composition is filled in a container that has a foam forming mechanism.SELECTED DRAWING: None

Description

The present invention relates to a foamy denture cleaning agent for application to the denture surface. Specifically, it is filled in a container that discharges the contents in the form of foam, and can be applied to the surface of the denture in the form of foam during use. It has excellent foam adhesion to the denture surface and is highly resistant to adhering oil stains. The present invention relates to a denture cleaning agent composition having a cleaning effect and a foamy denture cleaning agent product using the same.

In recent years, with the advent of an aging society, the number of users of dentures (artificial teeth and denture beds that support them) tends to increase year by year. When using a denture, food debris tends to accumulate between the denture base and the oral mucosa and between the artificial teeth of the denture, and the oral cavity is more likely to become dirty than a healthy person. Dirt adhering to dentures includes denture plaque, food residues, stains (colored deposits), tartar, etc., which cause unpleasant denture odor, caries of adjacent teeth, development of periodontal disease, etc. It causes progress. Therefore, in order to clean and keep the denture clean, the denture has been brushed or washed with a denture cleaning agent.

Conventionally, denture cleaning agents used for cleaning dentures are effervescent tablets containing a bleaching agent such as peroxide as a main component (when put into water, they generate minute bubbles such as foaming of carbonated water in water. The dentures are mainly of the type (tablets that dissolve while being dissolved). For example, dentures in which a bleaching agent is mixed with a solid-form soaking cleaning agent containing an organic acid and a carbonate that effervescent by an acid-base reaction and a surfactant. A cleaning agent is proposed in Patent Document 1 (Japanese Unexamined Patent Publication No. 11-181500).

However, the conventional effervescent tablet type solid denture cleaning agent as described above is individually packaged in single dose units, and this is used when the size of the denture varies greatly among individuals such as partial dentures. Users were often dissatisfied because they could not adjust. In addition, it takes a certain amount of immersion time (generally overnight) to remove oil stains derived from food or the like adhering to the denture, which has a problem in terms of convenience. Therefore, for example, after breakfast or lunch, denture wearers often perform cleaning with running water or brushing only with water to physically remove stains without using a solid denture cleaning agent. Oil stains derived from food or the like adhering to the surface could not be sufficiently removed only by brushing with water, and it was troublesome to perform brushing.

Patent Document 2 (Patent No. 4724141) proposes an emulsion-based denture cleaning agent that is easy to apply to dentures, does not require a long cleaning time, and is provided in a foamy form. However, the detergency against oil stains derived from food and the like is still insufficient, and brushing is required, so that the labor of the denture wearer cannot be reduced.
Patent Document 3 (Japanese Patent No. 5598273) describes a liquid composition for cleaning artificial teeth used in the form of a foam, which is a combination of an anionic surfactant, a sulfite, a specific polyphosphate, and a polyhydric alcohol. Although it is proposed that the prosthesis has excellent stain removing power, it is a stain removal premised on brushing, and it is not a technique that focuses on cleaning oil stains, but an oil that has different chemical properties from stains. There was room for improvement in terms of cleaning dirt.

Japanese Unexamined Patent Publication No. 11-181500 Japanese Patent No. 4724141 Japanese Patent No. 5598273 Japanese Unexamined Patent Publication No. 9-295923 Japanese Patent No. 3487023

The present invention has been made in view of the above circumstances, is filled in a container for discharging the contents in the form of foam, can be applied to the denture in the form of foam at the time of use, has excellent foam amount and durability, and is excellent in denture. It is an object of the present invention to provide a denture cleaning agent composition having excellent foam adhesion to the surface and particularly giving a high cleaning effect to adhered oil stains, and a foamy denture cleaning agent product using the same.

As a result of diligent studies to achieve the above object, the present inventors have obtained a foam-like denture cleaning agent composition containing (A) an anionic surfactant and (B) a water-soluble polymer substance. When applied to dentures (artificial teeth and denture bases for supporting them and covering and mounting the oral mucosal surface. Hereinafter referred to as "dentures"), the adhesion of bubbles to the denture surface is excellent, and in particular, it adheres. It was found that it gives a high cleaning effect to oil stains. That is, in the present invention, the artificial tooth cleaning agent composition containing (A) an anionic surfactant and (B) a water-soluble polymer substance is filled in, for example, a container for discharging the contents in the form of foam. By discharging the above composition in the form of foam from the container and applying it to the surface of the artificial tooth in the form of foam, the amount of foam and the durability of the foam are excellent, and the adhesion of the foam to the surface of the artificial tooth is also excellent. It was found that there is no run-off, an appropriate amount of foam is maintained and persists on the surface of the artificial tooth over time, and it gives a high cleaning effect even on adhering oil stains, and is excellent as a foam-like artificial tooth cleaning agent product. The present invention has been achieved.

In the conventional technique, even if the cleaning agent is discharged in the form of foam for cleaning the denture, a sufficient amount of foam can be adhered and held on the surface of the artificial tooth and the denture base even after a lapse of time. In addition, even oil stains derived from food and the like adhering to the surface of the denture could not be easily washed and removed cleanly in a short time. However, in the present invention, in the denture cleaning agent composition, by combining the component (A) and the component (B), both components act synergistically and specifically to improve the foam quality and to the surface of the denture. The adhesiveness of bubbles was enhanced, the effect of cleaning oil stains was improved, the cleaning effect was excellent, and the above-mentioned special action effect could be imparted. Therefore, according to the present invention, it is possible to remove oil stains derived from food or the like adhering to the surface of a denture in a relatively short time and with a simple operation by simply flushing with water without brushing and cleaning the denture cleanly. It became.
The effect of the present invention was inferior when the component (A) or the component (B) was absent, and the effect of the present invention could not be obtained. As shown in the comparative example described later, when the denture cleaning agent composition is applied to the surface of the denture in the form of foam, even if the component (B) is blended, if the component (A) is lacking, the component other than the component (A) is used. Even if a surfactant is blended, the adhesion of foam to the denture, the amount of foam and the persistence of foam, the detergency of oil stains on the surface of the denture are inferior (Comparative Examples 1, 3 and 4), and the component (A) However, if the component (B) was absent, the adhesion of foam to the denture, the sustainability of foam, and the ability to clean oil stains were inferior (Comparative Example 2). On the other hand, as shown in Examples described later, when the denture cleaning agent composition containing the component (A) and the component (B) of the present invention is applied to the surface of the denture in the form of foam, it is applied to the denture. It has excellent foam adhesion, foam volume and foam durability, and has high denture surface oil stain cleaning power. It is a relatively short and simple operation such as rinsing the applied denture with water after standing for 60 seconds. Moreover, even if it was not brushed at the time of cleaning, it was removed cleanly with almost no oil stains remaining.
Patent Documents 4 and 5 (Japanese Patent Laid-Open No. 9-295923, Japanese Patent No. 3487023) are improvements in foam uniformity, shape retention, etc. in the oral cavity of a foamy oral composition, and are dentures. There is no mention of its application to and denture cleaning. On the other hand, the present invention is to improve the adhesion of bubbles on the surface of the denture and the effect of cleaning oil stains by using the components (A) and (B) in combination.

Therefore, the present invention provides the following denture cleansing composition and foam denture cleansing product.
[1]
(A) Anionic surfactant and
(B) A foamy denture cleaning agent composition containing a water-soluble polymer substance for application to the surface of a denture.
[2]
(A) The anionic surfactant is one or more selected from an anionic surfactant having a sulfonic acid group (A1) and an anionic surfactant having a sulfate group (A2) [1]. The artificial tooth cleaning agent composition according to.
[3]
The anionic surfactant (A1) having a sulfonic acid group is the compound (A1) represented by the following formula (1), and the anionic surfactant (A2) having a sulfate group is the compound (A2) represented by the following formula (2). The artificial tooth cleaning agent composition according to [2], which is the compound (A2) shown.
^{_{R 1 -C 6 H 4 -SO 3}} - 1 / X · M + (1)
(In the formula, R ¹ represents a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, M ⁺ is a counterion, and X is a valence of M ⁺ .)
^{R 2 -O - [(PO)} p / (EO) q] -SO 3 - 1 / Y · Z + (2)
(In the formula, R ² represents a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, and p represents the average addition of propylene oxide. Representing the number of moles, 0 ≦ p ≦ 1, q represents the average number of moles added of ethylene oxide, 0 ≦ q ≦ 5, and in [(PO) _p / (EO) _q ], EO PO may be random addition or block addition. Z ⁺ is a counterion and Y is a valence of Z ⁺ .)
[4]
Compound (A1) is selected from alkylbenzene sulfonic acids having linear and branched alkyl groups having 8 to 18 carbon atoms and salts thereof, and compound (A2) is composed of linear and branched alkyl groups having 8 to 18 carbon atoms. The artificial tooth cleaning agent composition according to [3], which is selected from an alkyl sulfate having an alkyl sulfate, a polyoxyethylene alkyl sulfate ester salt, and a polyoxypropylene polyoxyethylene alkyl sulfate ester salt.
[5]
(A) Described in any one of [2] to [4], wherein the anionic surfactant is an anionic surfactant having a sulfonic acid group (A1) and an anionic surfactant having a sulfate group (A2). Prosthesis cleaning agent composition.
[6]
(A1) / (A2) showing the amount ratio of the anionic surfactant (A1) having a sulfonic acid group and the anionic surfactant (A2) having a sulfate group is 0.1 to 100 by mass ratio. The artificial tooth cleaning agent composition according to [5].
[7]
(B) The artificial tooth cleaning agent composition according to any one of [1] to [6], wherein the water-soluble polymer substance is one or more cellulosic polymer substances selected from sodium carboxymethyl cellulose and methyl cellulose.
[8]
The denture cleaning agent composition according to any one of [1] to [7], which contains 0.5 to 10% by mass of the component (A) and 0.005 to 3% by mass of the component (B).
[9]
The denture cleaning agent composition according to any one of [1] to [8], wherein (A) / (B) has a mass ratio of 2 to 450.
[10]
The denture cleaning agent composition according to any one of [1] to [9], which is a liquid.
[11]
A foamy denture cleaning agent product in which the denture cleaning agent composition according to any one of [1] to [10] is filled in a container provided with a foam forming mechanism.
[12]
The foamy denture cleaning agent product according to [11], wherein the container provided with the foam forming mechanism is a trigger type spray container.

The prosthesis cleaning agent composition for application in the form of foam of the present invention has excellent adhesion of foam to the surface of the prosthesis when foamed, and an appropriate amount of foam is maintained and sustained over time and adheres. It can give a high cleaning effect even to oil stains, and can be applied as a foam-like artificial tooth cleaning agent product in which the contents are filled in a container to be discharged in the form of foam and the discharged foam is used for cleaning the artificial tooth. In addition, this denture cleaning agent composition and foamy denture cleaning agent product have an excellent cleaning effect, can perform denture cleaning in a relatively short time and with a simple operation, and can adjust the amount used for the denture. Yes, it is very convenient.

Hereinafter, the present invention will be described in more detail. The foamy denture cleansing composition of the present invention for application to the surface of a denture contains (A) an anionic surfactant and (B) a water-soluble polymer substance. This denture cleaning agent composition can be filled in a container for discharging the contents in the form of foam to obtain a foam-like denture cleaning agent product, and can be used by discharging from the container to form bubbles at the time of use. it can.

As the (A) anionic surfactant, an anionic surfactant having a sulfonic acid group (A1) and an anionic surfactant having a sulfate group (A2) are preferable, and these are particularly represented by the following formula (1). The compound (A1) shown and the compound (A2) represented by the following formula (2) can be preferably used.

(A1)
^{_{R 1 -C 6 H 4 -SO 3}} - 1 / X · M + (1)
(In the formula, R ¹ represents a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, M ⁺ is a counterion, and X is a valence of M ⁺ .)

(A2)
^{R 2 -O - [(PO)} p / (EO) q] -SO 3 - 1 / Y · Z + (2)
(In the formula, R ² represents a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, and p represents the average addition of propylene oxide. Representing the number of moles, 0 ≦ p ≦ 1, q represents the average number of moles added of ethylene oxide, 0 ≦ q ≦ 5, and in [(PO) _p / (EO) _q ], EO PO may be random addition or block addition. Z ⁺ is a counterion and Y is a valence of Z ⁺ .)

In the above formula (1), R ¹ is a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, preferably having 10 to 14 carbon atoms, and is a linear chain hydrocarbon group. Is preferable, and more preferably an alkyl group. M ⁺ may be a counterion, for example, an ion of hydrogen, alkali metal, alkaline earth metal, ammonium or alkanolamine, which can form a water-soluble salt. Examples of the alkali metal include sodium and potassium. Examples of alkaline earth metals include calcium, magnesium and zinc. Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine and the like. Alkali metal salts and alkanolamine salts are preferable. X is a valence of M ⁺ , preferably 1-2.

In the above formula (2), R ² is a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, preferably 10 to 16 carbon atoms, and more preferably 12 to 14 carbon atoms. Yes, a straight chain hydrocarbon group is preferable, and an alkyl group is more preferable. From the viewpoint of detergency and the environment, R ² is particularly preferably a chain hydrocarbon group derived from a vegetable oil raw material. Suitable vegetable oil and fat raw materials are palm kernel oil, coconut oil and the like.
p represents the average number of moles of propylene oxide added, 0 ≦ p ≦ 1, and p = 0 is more preferable.
q represents the average number of moles of ethylene oxide added, and is 0 ≦ q ≦ 5, preferably 0 ≦ q ≦ 4, and more preferably 0 ≦ q ≦ 2.
Further, when [(PO) _p / (EO) _q ] is 0 <p ≦ 1 and 0 <q ≦ 5, EO and PO may be random addition or block addition.
Z ⁺ is a counter ion, and examples thereof include those described in M ⁺ , preferably an alkali metal salt or an alkanolamine salt. Y is a valence of Z ⁺ , preferably 1-2.

In the compound (A1) which is an anionic surfactant (A1) having a sulfonic acid group, the compound represented by the above formula (1) is an alkylbenzene having a linear or branched alkyl group having 8 to 18 carbon atoms. Examples thereof include sulfonic acid or a salt thereof. The salt is preferably an alkali metal salt such as a sodium salt or a potassium salt, and a sodium salt is particularly preferable.
As the compound (A1), specifically, a linear alkyl (C10 to 14) benzenesulfonic acid or a sodium salt thereof is preferable from the viewpoint of exhibiting the effect of the present invention.
In the above description, "C + number" represents the number of carbon atoms, and "(C10 to 14)" means that the number of carbon atoms is 10 to 14 (the same applies hereinafter).
The compound (A1) may be used alone or in combination of two or more, or a commercially available product may be used.

In the compound (A2) which is an anionic surfactant (A2) having a sulfate group, examples of the compound represented by the above formula (2) include alkyl sulfate or a salt thereof, polyoxyethylene alkyl sulfate ester or a salt thereof. , Polyoxypropylene polyoxyethylene alkyl sulfate ester or a salt thereof and the like, and in particular, alkyl sulfuric acid or a salt thereof, polyoxyethylene alkyl sulfate ester or a salt thereof is preferable, and the salt is an alkali metal salt such as a sodium salt. These alkyl groups are preferably linear or branched alkyl groups having 8 to 18 carbon atoms, particularly 10 to 16 and particularly 12 to 14 carbon atoms.
Specifically, sodium lauryl sulfate, polyoxyethylene (1) linear alkyl (C12) sulfate sodium salt, polyoxyethylene (2) linear alkyl (C12) sulfate sodium salt, polyoxyethylene (3) Linear alkyl (C12) sulfate sodium salt, polyoxypropylene (0.4) polyoxyethylene (1.5) linear alkyl (C12) sulfate sodium salt, polyoxyethylene (1) linear alkyl (C12 / 14 = 75/25) Sulfate Sodium Salt, Polyoxyethylene (2) Linear Alkyl (C12 / 14 = 75/25) Sulfate Sodium Salt, Polyoxyethylene (3) Linear Alkyl (C12 / 14 = 75/25) 25) Sulfate sodium salt, polyoxypropylene (0.4) polyoxyethylene (1.5) linear alkyl (C12 / 14 = 75/25) sulfate sodium salt and the like can be mentioned. Among these, sodium lauryl sulfate, polyoxyethylene (1) linear alkyl (C12 / 14 = 75/25) sulfate ester sodium salt, polyoxyethylene (2) linear alkyl (C12 / 14 = 75/25) Sodium sulfate and polyoxyethylene (3) linear alkyl (C12 / 14 = 75/25) sodium sulfate are particularly preferable in terms of exhibiting the effects of the present invention. The component (A2) can be made from synthetic fats and oils or natural fats and oils.
In the above description, for example, "polyoxyethylene (1)" means that the average number of moles of ethylene oxide added is 1, and "C12 / 14 = 75/25" means that the number of carbon atoms is 12 directly. It means that it is a mixture of one having a chain alkyl group and one having a linear alkyl group having 14 carbon atoms (mixing ratio: 75/25 in mass ratio) (the same applies hereinafter).
The compound (A2) may be used alone or in combination of two or more, or a commercially available product may be used.

As the (A) anionic surfactant, the above-mentioned anionic surfactant (A1) and / or anionic surfactant (A2) can be used, but the anionic surfactants (A1) and (A2) It is preferable to use in combination. In this case, (A1) / (A2) indicating the amount ratio of the two is preferably 0.1 to 100, more preferably 1 to 35, and particularly 1 to 15 as the mass ratio. Within this range, the oil stain detergency, the amount of foam, and the sustainability of foam are more excellent.

The amount of the anionic surfactant (A) to be blended is preferably 0.5 to 10% (mass%, the same applies hereinafter) of the entire composition, more preferably 2 to 8%, still more preferably 2.1 to 7. It is 5%. When the blending amount of the component (A) is within the above range, the oil stain detergency and the amount of foam are enhanced, and the sustainability of foam is further improved.
Further, when a mixture in which the above-mentioned anionic surfactants (A1) and (A2) are used in combination as the component (A) is blended, the blending amount of the anionic surfactant (A1) is preferably 0. It is 45 to 9%, particularly 2 to 7%, and the blending amount of the anionic surfactant (A2) is preferably 0.05 to 5%, particularly 0.1 to 4% of the whole composition.

As the (B) water-soluble polymer substance, a cellulose derivative can be used in terms of foam adhesion to the denture, foam persistence, and oil stain cleaning effect. For example, carboxymethyl cellulose or a salt thereof, methyl cellulose and the like can be mentioned, more preferably carboxymethyl cellulose or a salt thereof, and particularly sodium carboxymethyl cellulose. These may be used alone or in combination of two or more, or commercially available products may be used.

The blending amount of the water-soluble polymer substance (B) is preferably 0.005 to 3%, more preferably 0.01 to 2%, and particularly preferably 0.05 to 1% of the total composition. When the blending amount of the component (B) is within the above range, the adhesion of foam to the denture and the sustainability of foam are further improved, and the oil stain cleaning power is further improved.

In the present invention, (A) / (B) indicating the quantitative ratio of the component (A) to the component (B) can be 0.2 to 1,800 as a mass ratio, but 2 to 450 is preferable. , More preferably 6 to 100. When the mass ratio of (A) / (B) is within the above range, the adhesion of foam to the denture, the sustainability of foam, the amount of foam and the detergency of oil stains are more excellent.

The denture cleansing composition of the present invention is particularly prepared in a liquid composition, foamed at the time of use, and applied to the denture in the foam. In addition to the above components, other components that can be used in the denture cleaning agent composition can be added as needed within a range that does not interfere with the effects of the present invention. Specifically, a stabilizer, a fragrance, a colorant, a bactericide and the like can be blended, and water can be used as a solvent, and all the components can be mixed and prepared. The preparation method is not particularly limited, and a known method for producing a liquid preparation can be adopted.

Examples of the stabilizer include surfactants other than the component (A), polyhydric alcohols, hydrotropes, citric acid, ethylenediaminetetraacetic acid and the like.
As the surfactant other than the component (A), a nonionic surfactant and an amphoteric surfactant are used. Nonionic surfactants include polyoxyethylene fatty acid esters such as polyoxyethylene hydrogenated castor oil, sugar fatty acid esters, sugar alcohol fatty acid esters, sorbitan fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, and polyoxyethylene sorbitan fatty acid esters. , Polyoxyethylene higher alcohol ether, fatty acid alkanolamide and the like.
Examples of the polyhydric alcohol include glycerin, polyethylene glycol, propylene glycol and the like.
Examples of the hydrotrope agent include sodium cumene sulfonate, sodium xylene sulfonate, sodium toluene sulfonate, phenoxyethanol and the like.

Fragrances are spare mint oil, peppermint oil, anis oil, eucalyptus oil, winter green oil, cassia oil, clove oil, thyme oil, sage oil, lemon oil, orange oil, peppermint oil, cardamon oil, coriander oil, mandarin oil, lime. Natural fragrances such as oil, lavender oil, rosemary oil, laurel oil, camomill oil, caraway oil, majorum oil, bay oil, lemongrass oil, origanum oil, pine needle oil, cinnamon bark oil, and menthol, menthon , Carvone, ethyl butyrate, vanillin, ethyl maltol, anetol, methyl salicylate, synamic aldehyde, cineol, eugenol, ethyl vanillin, maltol, limonene, citronellol, linalol, linaryl acetate, mentyl acetate, pinene, octyl aldehyde, citral, Single fragrances such as pregon, calbeer acetate, anisaldehyde, ginger oleolezine, cleosol, dl-camper, as well as ethyl acetate, allylcyclohexane propionate, methyl anthranilate, ethyl methyl phenylglycidete, undecalactone, Known fragrances such as single fragrances such as hexanal, ethyl alcohol, propyl alcohol, butanol, isoamyl alcohol and / or various blended fragrances including natural fragrances can be used.

The denture cleaning agent composition of the present invention can be blended with a fragrance to give a refreshing feeling, so that the user can clean the denture more comfortably and feel a refreshing feeling when wearing the denture. it can.

Colorants are Red No. 2, Red No. 3, Red No. 225, Red No. 226, Yellow No. 4, Yellow No. 5, Yellow No. 205, Blue No. 1, Blue No. 2, Blue No. 201, Blue No. 204, Green No. 3 Examples thereof include legal pigments such as No., caramel pigments, Benibana pigments, cutinashi pigments, cochineal pigments, annatto pigments, mica titanium, titanium oxide and the like.

Examples of the bactericidal agent include isopropylmethylphenol, thymol, triclosan, benzoic acid or a salt thereof, salicylic acid or an ester thereof or a salt thereof, paraoxybenzoic acid ester, phenol and the like.

The pH of the composition is preferably pH 5-8 at 25 ° C., more preferably pH 5.5-7.5. The pH is adjusted by adding a pH adjuster such as sodium hydroxide, hydrochloric acid, phosphoric acid or a salt thereof, citric acid or a salt thereof, sodium carbonate, sodium hydrogencarbonate, boric acid or a salt thereof, if necessary. You may.

The viscosity of the composition is preferably 1 to 150 mPa · s, more preferably 2 to 100 mPa · s, and particularly 2 to 50 mPa · s at 25 ° C. (B-type viscometer).

The denture cleaning agent composition of the present invention can be used as a foam-like denture cleaning agent product by filling a container having a foam-forming means for discharging the contents in the form of foam.
The filling container is a container that discharges the contents in the form of bubbles via a foam forming mechanism, for example, the contents are mixed with air by applying a pressing force to the contents and discharged in the form of bubbles from the discharge port. A container that can be used can be used.

The container is not particularly limited as long as it is a foam discharge container having a structure capable of discharging liquid contents in a foam shape by a foam forming mechanism, and is not particularly limited as an aerosol container having a known foam forming mechanism. Examples thereof include an aerosol type trigger type spray container (hereinafter referred to as a trigger container), a squeeze container, a dispenser, and the like, and these can be adopted. In particular, a non-aerosol type spray container that does not use a propellant is preferable, and in particular, a non-aerosol type trigger container is preferable in that the user can refill (refill) the internal solution. As the trigger container, either a direct pressure type or an accumulator type trigger can be used, and a known trigger container can be used.
Specifically, a container body such as a plastic bottle for accommodating the contents, a spray unit having a discharge mechanism for sucking and pumping the contents from the container body and discharging the contents from the contents discharge port (nozzle), and the spray. A cap portion for attaching the portion to the container body is provided, and a trigger provided in the discharge mechanism of the spray portion mounted in close contact with the upper opening of the container body is repeatedly pulled toward the spray portion and returned to the original position. The discharge mechanism is activated by reciprocating the container, and the contents sucked up from the container body have a foam forming mechanism, for example, a mixing mechanism between the contents and air and a foaming member (porous member, mesh member, etc.). After the contents are mixed with air, the contents are foamed by passing through the foaming member, and the bubbles are discharged from the contents discharge port (nozzle). Alternatively, a wall portion (for example, a tubular foaming cylinder) formed so as to project forward around the discharge hole and a spin element that rotates the discharged liquid when the liquid in the container body is discharged from the discharge hole. In addition, the droplets discharged from the discharge holes collide with the inner wall of the wall portion to be foamed. The trigger container that can be used in the present invention is not limited to the above, and may be any one that can apply the liquid filled in the container to the denture in the form of foam.
In this case, one having a diameter capable of discharging about 0.5 to 1.5 g of the contents with one discharge is preferable from the viewpoint of the discharge property to the denture and the effect manifestation of the present invention.
As the above container, a commercially available product may be used, for example, a product name; a trigger container used in a bath look (manufactured by Lion Corporation), a product name: a look around the range (manufactured by Lion Corporation). ), The foam discharge trigger container and the like used in) can be used.

The denture cleaning agent composition of the present invention can be used for cleaning partial dentures and all dentures. To clean these dentures, for example, the denture is discharged from a discharge container having the above-mentioned foam forming mechanism and is applied to the surface of the denture. It is preferable to apply the spray in the form of foam and leave it to stand for 30 seconds or longer, especially 60 seconds or longer with the foam adhered, and the upper limit is not particularly limited, but from the viewpoint of workability, within 5 minutes, particularly 2 It can be within minutes, especially within 90 seconds. It may be allowed to stand at room temperature. After standing, the denture cleaning agent composition is rinsed with running water for about 10 seconds to 1 minute to complete the denture cleaning. The denture cleaning agent composition of the present invention has a high oil stain cleaning power without applying a physical force such as brushing, and the present effect can be obtained. However, although brushing is not required, brushing is not prohibited, and brushing with a toothbrush, an electric toothbrush, a prosthetic toothbrush, or the like for a short time may be performed before rinsing with running water.

Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples. In the following examples,% indicates mass% unless otherwise specified.

[Examples, comparative examples]
The denture cleaning agent composition (liquid composition for foam-like denture cleaning agent) having the composition shown in Tables 1 to 5 is prepared by the following method and filled in a trigger container equipped with a foam-forming mechanism to prepare a foam-like denture cleaning agent. did. These were used as test samples and evaluated by the following method. The results are also shown in the table.
The numerical value indicating the blending amount in the table is the net amount of each component.
The viscosity of the composition of the example at 25 ° C. (B-type viscometer) was 2 to 50 mPa · s.

Preparation method Using the ingredients shown in the table (total amount 1,000 g), preparation was performed according to the following procedure.
Put (A) component, (B) component, and other components in a 1L beaker, add water (ion-exchanged water) so that the total amount is 95% of the total amount, and add three-one motor (product name: FBL1,200M, Stir with Tokyo Glass Instruments Co., Ltd. until uniform. After adding an appropriate amount of sodium hydroxide so that the pH at 25 ° C. becomes 6.0, add water (ion-exchanged water) so that the total amount becomes 100% of the total amount, and stir until uniform. A liquid denture cleanser composition was obtained. The obtained liquid denture cleaning agent composition is a trigger container equipped with a foam forming mechanism (trade name; look around the range (manufactured by Lion Corporation) foam discharge trigger container, narrow foam setting, discharge amount per time. 1.0 g) was filled.

(1) Evaluation method of oil stain detergency Sudan IV (mixed edible rapeseed oil and soybean oil, manufactured by Nisshin Oillio Group Co., Ltd.) so as to increase visibility to 0.1%. A model stain was obtained by uniformly dissolving the pigment, manufactured by Tokyo Chemical Industry Co., Ltd. Weigh the prepared model denture on the maxillary complete denture (manufactured by Nissin Co., Ltd.) with an electronic balance, and apply 0.5 g uniformly to the entire surface of the non-attached side using a poly dropper, and room temperature (25 ° C) ) For 1 hour. The liquid denture cleaning agent composition was applied by 5 pushes (1.0 g / 1 push) from the container of the test sample to the above model dentures adhering to stains in the form of foam, and allowed to stand for 60 seconds. Then, the denture was washed by rinsing thoroughly with running water at 25 ° C. and a flow velocity of 6 L / min. After taking a picture of the surface of the denture after cleaning, the remaining degree of stain (model stain) (ratio of the stained area to the surface area of the denture (%)) is calculated by the image analysis software Image J (NIH) and described below. The oil stain detergency was evaluated according to the four evaluation criteria shown.
<Evaluation criteria>
⊚: Almost no stain residue (dyeing area less than 10%)
◯: The amount of dirt remaining is small (stained area 10% or more and less than 25%)
Δ: Slightly more dirt remains (stained area 25% or more and less than 50%)
X: Very much dirt remains (stained area 50% or more)

(2) Evaluation method of foam amount 3 pushes (1.0 g / 1 push) of the liquid artificial tooth cleaning agent composition from the container of the test sample into a 100 mL graduated cylinder and discharge it in the form of foam, and then immediately after discharge. The amount of foam (mL) was measured, and the amount of foam was evaluated according to the four-step evaluation criteria shown below.
<Evaluation criteria>
⊚: Foam amount 40 mL or more ○: Foam amount 25 mL or more and less than 40 mL Δ: Foam amount 10 mL or more and less than 25 mL ×: Foam amount less than 10 mL

(3) Method for evaluating foam persistence After 3 pushes (1.0 g / 1 push) of the liquid artificial tooth cleaning agent composition from the container of the test sample into a 100 mL graduated cylinder and discharging it in the form of foam, The amount of foam immediately after discharge and the amount of foam after 60 seconds were measured, and the retention rate (%) of foam was calculated from the amount of foam immediately after discharge and the amount of foam after 60 seconds by the following formula. From the obtained foam persistence rate, the foam persistence was evaluated by the following four-step evaluation criteria.
Foam persistence rate (%) = {(foam amount after 60 seconds) / (foam amount immediately after discharge)} x 100
<Evaluation criteria>
⊚: 90% or more ○: 70% or more and less than 90% Δ: 50% or more and less than 70% ×: less than 50%

(4) Evaluation method of foam adhesion to dentures 5 pushes (1.0 g / 1 push) of the liquid denture cleaning agent composition evenly from the container of the test sample to the maxillary complete denture (manufactured by Nissin Co., Ltd.). Then, it was applied so as to cover the denture with the discharged foam, and allowed to stand for 60 seconds. The mass of the denture before application and the mass of the denture after application and standing for 60 seconds were measured, and the amount of foam adhering to the denture was determined from the mass difference between the two. The foam adhesion rate (%) to the denture was calculated from the ratio of the foam adhesion to the denture to the discharge amount of the test sample by the following formula. From the obtained adhesion rate of foam to the denture, the adhesion of foam to the denture was evaluated by the following four-step evaluation criteria.
Adhesion rate of foam to denture (%) =
{(Amount of foam attached to denture) / (Amount of test sample discharged)} x 100
<Evaluation criteria>
⊚: 90% or more ○: 70% or more and less than 90% Δ: 50% or more and less than 70% ×: less than 50%

Details of the raw materials used are shown below.
<Ingredient (A)>
(A1) LAS (Linear Alkylbenzene Sulfonic Acid)
Alkyl group has 10 to 14 carbon atoms, 96% purity, manufactured by Lion Specialty Chemicals Co., Ltd., trade name; Lipon LH-200
(A2) SDS (sodium lauryl sulfate)
33% purity, manufactured by Lion Specialty Chemicals Co., Ltd., trade name; Sannore LM-1130
<Ingredient (B)>
CMC-Na (sodium carboxymethyl cellulose)
Purity 99.7%, manufactured by Daicel Chemical Industries, Ltd., trade name; CMC1260
Polyoxyethylene (60) Hardened Castor Oil Made by Nippon Emulsion Co., Ltd., trade name; PEG-60 hydrogenated castor oil, average number of moles of ethylene oxide added 60
Sodium cumene sulfonate 40% purity, manufactured by TAYCA CORPORATION, trade name; TAYCA TOX N5040
Nonionic Surfactant: AE (Polyoxyethylene / Polyoxypropylene Copolymerized Alkylate Ether)
96% pure, manufactured by Dow Chemical, trade name; Ecosurf SA-7
Amphoteric tenside: AX (lauryl dimethylamine oxide)
Made by Lion Specialty Chemicals Co., Ltd., trade name; Cadenax DM12
DW
Sodium hydroxide (pH regulator)
1 mol / l sodium hydroxide solution (1N) manufactured by Kanto Chemical Co., Inc.

Claims (12)

(A) Anionic surfactant and
(B) A foamy denture cleaning agent composition containing a water-soluble polymer substance for application to the surface of a denture. (A) Claim 1 in which the anionic surfactant is one or more selected from an anionic surfactant having a sulfonic acid group (A1) and an anionic surfactant having a sulfuric acid group (A2). The artificial tooth cleaning agent composition described. The anionic surfactant (A1) having a sulfonic acid group is the compound (A1) represented by the following formula (1), and the anionic surfactant (A2) having a sulfate group is the compound (A2) represented by the following formula (2). The artificial tooth cleaning agent composition according to claim 2, which is the compound (A2) shown.
^{_{R 1 -C 6 H 4 -SO 3}} - 1 / X · M + (1)
(In the formula, R ¹ represents a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, M ⁺ is a counterion, and X is a valence of M ⁺ .)
^{R 2 -O - [(PO)} p / (EO) q] -SO 3 - 1 / Y · Z + (2)
(In the formula, R ² represents a linear or branched chain hydrocarbon group having 8 to 18 carbon atoms, PO represents an oxypropylene group, EO represents an oxyethylene group, and p represents the average addition of propylene oxide. Representing the number of moles, 0 ≦ p ≦ 1, q represents the average number of moles added of ethylene oxide, 0 ≦ q ≦ 5, and in [(PO) _p / (EO) _q ], EO PO may be random addition or block addition. Z ⁺ is a counterion and Y is a valence of Z ⁺ .) Compound (A1) is selected from alkylbenzene sulfonic acids having linear and branched alkyl groups having 8 to 18 carbon atoms and salts thereof, and compound (A2) is composed of linear and branched alkyl groups having 8 to 18 carbon atoms. The artificial tooth cleaning agent composition according to claim 3, which is selected from an alkyl sulfate having an alkyl sulfate, a polyoxyethylene alkyl sulfate ester salt, and a polyoxypropylene polyoxyethylene alkyl sulfate ester salt. The invention according to any one of claims 2 to 4, wherein the anionic surfactant (A) is an anionic surfactant having a sulfonic acid group (A1) and an anionic surfactant having a sulfate group (A2). Prosthesis cleaning agent composition. (A1) / (A2) showing the amount ratio of the anionic surfactant (A1) having a sulfonic acid group and the anionic surfactant (A2) having a sulfate group is 0.1 to 100 by mass ratio. The artificial tooth cleaning agent composition according to claim 5. (B) The artificial tooth cleaning agent composition according to any one of claims 1 to 6, wherein the water-soluble polymer substance is one or more cellulosic polymer substances selected from sodium carboxymethyl cellulose and methyl cellulose. The denture cleaning agent composition according to any one of claims 1 to 7, which contains 0.5 to 10% by mass of the component (A) and 0.005 to 3% by mass of the component (B). The denture cleaning agent composition according to any one of claims 1 to 8, wherein (A) / (B) has a mass ratio of 2 to 450. The denture cleaning agent composition according to any one of claims 1 to 9, which is a liquid. A foamy denture cleaning agent product in which the denture cleaning agent composition according to any one of claims 1 to 10 is filled in a container provided with a foam forming mechanism. The foamy denture cleaning agent product according to claim 11, wherein the container provided with the foam forming mechanism is a trigger type spray container.