JP6774705B2 - Liquid oral composition in foam discharge container - Google Patents

Description

The present invention relates to a liquid oral composition containing a foam discharge container.

Conventionally, an oral composition that is filled in a container capable of discharging the contents in a foam form and exhibits good foam performance has been known so that the contents can be applied in the form of foam from the discharge port to the oral cavity during use. Has been done. For example, Patent Document 1 discloses a foamy oral composition containing an anionic surfactant, a nonionic surfactant or an amphoteric surfactant, a thickener, a binder and the like, and also patents. Document 2 discloses a foamy oral composition in which an anionic surfactant, a nonionic surfactant, and a specific amphoteric surfactant such as an imidazolinium betaine type are used in combination. Further, Patent Document 3 discloses an oral composition in which two or more kinds of anionic surfactants and a specific nonionic surfactant such as fatty acid dialkanolamide are used in combination.

As described above, the compositions described in any of the above documents contain an anionic surfactant, and among such anionic surfactants, an alkyl sulfate ester salt such as sodium lauryl sulfate is foaming or foaming. It is used in many of the above compositions because it is useful for ensuring foam performance such as properties.

Japanese Unexamined Patent Publication No. 8-333226 Japanese Unexamined Patent Publication No. 11-130647 Japanese Unexamined Patent Publication No. 10-139643

However, when an alkyl sulfate ester salt is used as the anionic surfactant, precipitates may be formed when stored at a low temperature. Therefore, for example, the composition is filled in a non-aerosol type container provided with a porous member. If so, it can also cause clogging. Further, as described in the above document, even when a nonionic surfactant such as polyoxyethylene cured castor oil is used in combination, good foaming performance is maintained and storage stability at low temperature is effectively ensured. Is still inadequate and there is still room for improvement.

Therefore, the present invention relates to a liquid oral composition containing a foam discharge container, which is excellent in low-temperature storage stability while maintaining good foam performance and flavor.

Therefore, the present inventor has made various studies and found that a specific amount of an alkyl sulfate ester salt, which is an anionic surfactant, and a nonionic surfactant containing a sucrose fatty acid ester having a specific mass ratio with the alkyl sulfate ester salt are specified. Liquid oral cavity in a foam discharge container that can achieve both excellent foam performance and low-temperature storage stability by limiting the content of the abrasive powder while using a specific polyol and water in combination. It has been found that a composition for use can be obtained.

That is, the present invention describes the following components (A), (B), (C) and (D):
(A) Alkyl sulfate ester salt 0.2% by mass or more and 1.5% by mass or less,
(B) Contains the sucrose fatty acid ester (b-1), and the mass ratio ((b-1) / (A)) of the content of the component (b-1) to the content of the component (A) is 0. Nonionic surfactant which is 7 or more and 5 or less 0.5% by mass or more and 3% by mass or less,
(C) One or more polyols selected from glycerin, propylene glycol, butylene glycol, and polyethylene glycol having an average molecular weight of 1000 or less The total is 10% by mass or more and 40% by mass or less, and (D) 50% by mass or more of water. The present invention relates to a liquid oral composition containing a foam discharge container containing 89% by mass or less and a abrasive powder content of 0.5% by mass or less.

According to the present invention, since good foam quality is provided and excellent low temperature storage stability is maintained, good discharge performance from the foam discharge container can be ensured even when used after low temperature storage. .. In addition, it can provide a good feeling of use without feeling irritation while having an excellent flavor.

Hereinafter, the present invention will be described in detail.
The liquid oral composition containing a foam discharge container of the present invention contains 0.2% by mass or more and 1.5% by mass or less of an alkyl sulfate ester salt as the component (A). By containing the component (A) in such an amount, good bubbles can be formed when discharged from the container, and the onset of irritation can be suppressed to provide a good feeling of use.

Examples of such component (A) include an alkyl sulfate ester salt having a saturated or unsaturated alkyl group having 8 to 18 carbon atoms, and an alkyl sulfate having a saturated or unsaturated alkyl group having 10 to 14 carbon atoms. Ester salts are preferred. Further, as these salts, alkali metal salts are preferable, and sodium salts and potassium salts are more preferable. Specifically, one or two selected from sodium lauryl sulfate and sodium myristyl sulfate are more preferable, and sodium lauryl sulfate is even more preferable.

The content of the alkyl sulfate of the component (A) is 0.2% by mass or more in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of forming good bubbles when discharged from the container. It is preferably 0.25% by mass or more, more preferably 0.3% by mass or more, and further preferably 0.4% by mass or more. Further, the content of the component (A) is 1.5% by mass or less in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of ensuring a good usability, and is preferably 1. It is 25% by mass or less, more preferably 1% by mass or less, and further preferably 0.8% by mass or less. The content of the component (A) is 0.2 to 1% by mass or more and 1.5% by mass or less in the liquid oral composition containing a foam discharge container of the present invention, preferably 0.25 to 1. It is 25% by mass, more preferably 0.3 to 1% by mass, and even more preferably 0.4 to 0.8% by mass.

The liquid oral composition containing a foam discharge container of the present invention is an anionic surfactant other than the alkyl sulfate ester salt of the above component (A) from the viewpoint of ensuring excellent low temperature storage stability and good usability. It is preferable to use in combination. Examples of the anionic surfactant other than the component (A) include N-acylsarcosine salts such as N-lauroyl sarcosin salt and N-myristoyl sarcosin salt; N-lauroyl methyl taurine salt, N-myristoyl methyl taurine salt and the like. N-Methylacyl taurine salt; N-acyl taurine salt such as N-lauryl taurine salt, N-myristoyl taurine salt; N-lauroyl glutamate, N-myristoyl glutamate, N-palmitoyl glutamate, N-cocoyl glutamate, etc. N-acylglutamate; alkyl phosphate such as lauryl phosphate; one or more selected from α-olefin (C14-16) sulfonates having 14 to 16 carbon atoms in the olefin. Be done. Among them, one or more selected from N-acyl sarcosine salt, N-methylacyl taurine salt, and N-acyl taurine salt are preferable.

The content of the anionic surfactant other than the alkyl sulfate ester salt of the component (A) is the composition for the liquid oral cavity containing the foam discharge container of the present invention from the viewpoint of enhancing the low temperature storage stability while providing a good usability. In the substance, it is preferably 0.1 to 1.5% by mass, more preferably 0.2 to 1.25% by mass, still more preferably 0.3 to 1% by mass, still more preferably 0. .3 to 0.8% by mass. From the viewpoint of flavor, the content of the anionic surfactant other than the component (A) is preferably 0.5% by mass or less, more preferably 0.3% by mass or less, and the component (A). It may not contain an anionic surfactant other than the alkyl sulfate ester salt of. Further, the content of N-acylsarcosine salt is preferably 0.3% by mass or less in the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of suppressing good flavor and irritation. It is preferably 0.1% by mass or less, more preferably 0.05% by mass or less, and may not contain an N-acylsarcosine salt.

The total content of the anionic surfactant containing the alkyl sulfate of the component (A) is for the liquid oral cavity in the foam discharge container of the present invention from the viewpoint of enhancing the low temperature storage stability while providing a good usability. In the composition, it is preferably 0.2 to 2% by mass, more preferably 0.3 to 1.7% by mass, still more preferably 0.35 to 1.5% by mass, and even more preferably. Is 0.4 to 1.3% by mass.

The liquid oral composition in a foam discharge container of the present invention contains a sucrose fatty acid ester (b-1) as a component (B), and contains the content of the component (b-1) and the content of the component (A). Contains 0.5% by mass or more and 2% by mass or less of a nonionic surfactant having a mass ratio ((b-1) / (A)) of 0.7 or more and 5 or less. That is, the nonionic surfactant of the component (B) in the present invention contains a sucrose fatty acid ester (b-1) having a specific mass ratio with the alkyl sulfate ester salt of the component (A). As described above, by using a nonionic surfactant containing a sucrose fatty acid ester (b-1) having a specific quantitative relationship with the component (A) as the component (B) in such an amount, the texture can be obtained. While maintaining fine and good foam quality, it is possible to effectively suppress the generation of unnecessary precipitates at low temperatures, and it is possible to ensure good discharge performance in a wide range of storage temperature ranges.

Examples of the fatty acid constituting the sucrose fatty acid ester of the component (b-1) include one or more selected from fatty acids having 12 to 18 carbon atoms, and the solubility in the liquid oral composition of the present invention or From the viewpoint of dispersibility, specifically, one or more selected from lauric acid, myristic acid, stearic acid, and oleic acid are preferable, and one or two selected from lauric acid and myristic acid are preferable. More preferably, lauric acid is even more preferred from the standpoint of better solubility.

The mass ratio ((b-1) / (A)) of the content of the sucrose fatty acid ester of the component (b-1) to the content of the component (A) is a viewpoint of exhibiting excellent cryopreservation stability. Therefore, it is 0.7 or more, preferably 0.8 or more. Further, the mass ratio ((b-1) / (A)) of the content of the component (b-1) to the content of the component (A) is effective in expressing irritation while forming good bubbles. From the viewpoint of ensuring a high usability, it is 5 or less, preferably 4 or less, more preferably 3 or less, and further preferably 2.5 or less. The mass ratio ((b-1) / (A)) of the content of the component (b-1) to the content of the component (A) is 0.7 or more and 5 or less, preferably 0. It is 7 to 4, more preferably 0.8 to 3, and even more preferably 0.8 to 2.5.

The content of the component (b-1) is preferably 0.3% by mass or more in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of exhibiting excellent low-temperature storage stability. It is preferably 0.4% by mass or more. Further, the content of the component (b-1) is preferably 2% by mass or less, more preferably 2% by mass or less, in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of ensuring good foam formation. Is 1.5% by mass or less, more preferably 1.2% by mass or less. The content of the component (b-1) is preferably 0.3 to 2% by mass, more preferably 0.3 to 1.5% by mass in the liquid oral composition containing the foam discharge container of the present invention. It is by mass, more preferably 0.4 to 1.2% by mass.

The nonionic surfactant of the component (B) may contain other nonionic surfactants in addition to the sucrose fatty acid ester of the component (b-1). Examples of such other nonionic surfactants include polyoxyethylene hydrogenated castor oil (b-2), sorbitan fatty acid ester, glycerin fatty acid ester such as pentaglycerin monomyristate, alkyl glucoside, polyglycerin fatty acid ester, and polyoxyethylene. Monoalkyl (or alkenyl) ethers, polyoxyethylene polyoxypropylene copolymers, polyoxyethylene alkyl phenyl ethers such as polyoxyethylene nonylphenyl ethers, amine oxide surfactants, mono- (or di-) ethanolamides, Selected from fatty acid alkanolamides such as coconut oil fatty acid diethanolamide, glycerin fatty acid esters such as monoglycerin stearate and decaglycerin monostearate, polyglycerin fatty acid esters such as decaglyceryl laurate, and polyglycols such as polyethylene polypropylene glycol 1 Species or two or more species are mentioned. Among them, as other nonionic surfactants that can be used, the viewpoint of ensuring excellent solubility or dispersibility of oily components such as fragrances and ensuring excellent low-temperature storage stability when used in combination with the above component (b-1). Therefore, one or more selected from polyoxyethylene hydrogenated castor oil (b-2), sorbitan fatty acid ester, and polyglycerin fatty acid ester are preferable, and polyoxyethylene cured castor oil (b-2) is more preferable.

The content of the polyoxyethylene hydrogenated castor oil of the component (b-2) is the liquid oral cavity containing the foam discharge container of the present invention from the viewpoint of achieving both good low temperature storage stability and foam formation and from the viewpoint of flavor. In the composition for use, it is preferably 1.5% by mass or less, more preferably 1.25% by mass or less, further preferably 1% by mass or less, and preferably 0.2% by mass or more. It is more preferably 0.3% by mass or more, and further preferably 0.5% by mass or more.

The content of the nonionic surfactant of the component (B) maintains the viewpoint of increasing the contribution of the sucrose fatty acid ester of the component (b-1) to the improvement of low temperature storage stability and the formation of good bubbles. From the viewpoint, it is 0.5% by mass or more, preferably 0.6% by mass or more, and more preferably 0.7% by mass or more in the liquid oral composition containing a foam discharge container of the present invention. , More preferably 0.9% by mass or more. Further, the content of the component (B) is the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of suppressing an increase in viscosity at a low temperature, ensuring good dischargeability, and ensuring a good usability. Among them, it is 3% by mass or less, preferably 2.5% by mass or less, more preferably 2% by mass or less, and further preferably 1.8% by mass or less. The content of the component (B) is 0.5% by mass or more and 3% by mass or less, preferably 0.6 to 2.5% by mass, in the liquid oral composition containing a foam discharge container of the present invention. %, More preferably 0.7 to 2% by mass, still more preferably 0.9 to 1.8% by mass.

The mass ratio ((B) / (A)) of the content of the nonionic surfactant of the component (B) to the content of the alkyl sulfate ester salt of the component (A) is stored at a low temperature while ensuring good foam quality. From the viewpoint of enhancing stability, it is preferably 1.9 or more, more preferably 2 or more, preferably 4 or less, more preferably 3.5 or less, and further preferably 3 or less.

The total content of the alkyl sulfate ester salt of the component (A) and the content of the polyoxyethylene cured castor oil of the component (b-2) is from the viewpoint of suppressing the increase in viscosity after storage at low temperature and from the viewpoint of improving the flavor. Therefore, in the liquid oral composition containing a foam discharge container of the present invention, it is preferably 2.5% by mass or less, more preferably 2% by mass or less, still more preferably 1.8% by mass or less. From the viewpoint of obtaining a better flavor, it is preferably 1.2% by mass or less.

The total amount of the content of the anionic surfactant containing the component (A) and the content of the component (b-1) is determined in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of good foam quality. In addition, it is preferably 0.5% by mass or more, more preferably 0.6% by mass or more, further preferably 0.9% by mass or more, and preferably 3.5% by mass or less from the viewpoint of flavor. It is more preferably 3% by mass or less, further preferably 2.5% by mass or less, and even more preferably 2.3% by mass or less.

The liquid oral composition in a foam discharge container of the present invention contains a total of one or more polyols selected from glycerin, propylene glycol, butylene glycol, and polyethylene glycol having an average molecular weight of 1000 or less as the component (C). It contains 10% by mass or more and 40% by mass or less. As a result, it is possible to effectively combine excellent low-temperature storage stability while preventing clogging of the porous member included in the foam discharge container and forming bubbles well. Among them, as the component (C), it is preferable to use two or more kinds of polyols selected from glycerin, propylene glycol, butylene glycol, and polyethylene glycol having an average molecular weight of 1000 or less. The average molecular weight of the polyethylene glycol means the mass average molecular weight measured by GPC (gel permeation chromatography).
The mass average molecular weight of polyethylene glycol used as the component (C) is 1000 or less, preferably 850 or less, from the viewpoint of further enhancing low-temperature storage stability, and prevents clogging of the porous member to produce good bubbles. From the viewpoint of forming, it is preferably 200 or more, and more preferably 400 or more.

The content of the polyol of the component (C) prevents clogging of the porous member provided in the foam discharge container and effectively suppresses the generation of precipitates at a low temperature, and thus the liquid oral cavity containing the foam discharge container of the present invention. In the composition for use, the total amount is 10% by mass or more, preferably 12% by mass or more, and more preferably 15% by mass or more. In addition, the content of the component (C) is 40% by mass or less in total in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of ensuring good discharge from the container and excellent usability. It is preferably 37% by mass or less, and more preferably 35% by mass or less. The content of the component (C) is 10% by mass or more and 40% by mass or less in total, preferably 12 to 37% by mass, in the liquid oral composition containing a foam discharge container of the present invention. More preferably, it is 15 to 35% by mass.

The liquid oral composition containing a foam discharge container of the present invention contains 50% by mass or more and 89% by mass or less of water as the component (D). The water of the component (D) in the present invention includes not only purified water and ion-exchanged water blended in the composition for liquid oral cavity in a foam discharge container, but also water contained in each blended component for liquid oral cavity. It means the total water content contained in the composition. By containing the water of the component (D), each component is satisfactorily dispersed or dissolved to exhibit excellent low temperature storage stability while forming a good foam, and each component is exhibited in the oral cavity during use. Can be satisfactorily diffused to provide a good usability.

The water content of the component (D) is 50% by mass or more, preferably 55% by mass, in the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of satisfactorily dispersing or dissolving each component. % Or more, more preferably 60% by mass or more. Further, the content of the component (D) is the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of maintaining the discharge property from the container while forming good foam and improving the low temperature storage stability. Among them, it is 89% by mass or less, preferably 86% by mass or less, and more preferably 83% by mass or less. The content of the component (D) is 50% by mass or more and 89% by mass or less, preferably 55 to 86% by mass, more preferably in the liquid oral composition containing a foam discharge container of the present invention. Is 60 to 83% by mass.

The liquid oral composition containing a foam discharge container of the present invention is a liquid oral composition containing a foam discharge container of the present invention from the viewpoint of ensuring good discharge from the container while exhibiting excellent low-temperature storage stability. The content of abrasive powder in it is limited. Examples of such abrasive powders include light calcium carbonate, heavy calcium carbonate, zeolite, abrasive silica having an oil absorption of 50 to 150 mL / 100 g, calcium dibasic phosphate, calcium tertiary phosphate, insoluble sodium metaphosphate, and aluminum hydroxide. One or more selected from magnesium phosphate, calcium pyrophosphate, magnesium carbonate and the like can be mentioned.
The amount of oil absorbed indicates the amount of oil that silica can support, and the measuring method is specified by the amount of oil absorbed in the boiled sardine by a method based on JIS K5101-13-2 (established in 2004). To do.

The content of the abrasive powder in the liquid oral composition containing the foam discharge container of the present invention is 0.5% by mass or less, preferably 0.4% by mass or less, and more preferably 0.3. It is preferably not more than% by mass, preferably more than 0% by mass, or the liquid oral composition in a foam discharge container of the present invention preferably does not contain an abrasive powder. The content of the abrasive powder is 0.5% by mass or less, preferably 0 to 0.5% by mass, more preferably 0 to 0.5% by mass in the liquid oral composition containing the foam discharge container of the present invention. It is preferably 0 to 0.4% by mass, more preferably 0 to 0.3% by mass, or the liquid oral composition in a foam discharge container of the present invention does not contain an abrasive powder.

The content of ethanol is preferably 3% by mass or less, more preferably 2 in the liquid oral composition containing the foam discharge container of the present invention, from the viewpoint of effectively preventing the foam retention from being lowered. It is preferably 5.5% by mass or less, more preferably 2% by mass or less, preferably more than 0% by mass, or the liquid oral composition in a foam discharge container of the present invention does not contain ethanol. Further, the content of ethanol is preferably 3% by mass or less, more preferably 0 to 2.5% by mass, and further preferably 0 to 0 in the liquid oral composition in a foam discharge container of the present invention. The liquid oral composition containing 2% by mass or the foam discharge container of the present invention preferably does not contain ethanol.

It is preferable to limit the content of the binder in the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of further enhancing the stability at low temperature storage and ensuring good discharge from the container. Examples of such binders include sodium alginate, carboxymethyl cellulose or a salt thereof, carrageenan, xanthan gum, sodium polyacrylate, hydroxyethyl cellulose, hydroxypropyl cellulose, pectin, tragant gum, gum arabic, guar gum, karaya gum, locust bean gum, and gellan gum. , Tamarind gum, psyllium seed gum, polyvinyl alcohol, sodium chondroitin sulfate, methoxyethylene maleic anhydride copolymer. Among them, as a binder that can be used, the degree of etherification is high from the viewpoint of increasing the foam viscosity of the liquid oral composition discharged from the foam discharge container and maintaining the foam well in the presence of saliva in the oral cavity. One or more selected from 0.7 to 2.0 carboxymethyl cellulose or a salt thereof, hydroxyethyl cellulose, carrageenan, and xanthan gum are preferable, and it is more preferable to use two or more in combination.

The content of the binder is preferably 0.3% by mass or less, more preferably 0.28% by mass or less, still more preferably 0.28% by mass or less in the liquid oral composition containing the foam discharge container of the present invention. It is 0.25% by mass or less, preferably 0.05% by mass or more, and more preferably 0.1% by mass or more, from the viewpoint of increasing the foam viscosity and ensuring good foam quality and usability. Alternatively, the liquid oral composition in a foam discharge container of the present invention does not have to contain a binder.

The liquid oral composition containing a foam discharge container of the present invention preferably further contains a cationic bactericide from the viewpoint of imparting effects such as prevention or prevention of gingival inflammation, periodontitis, or halitosis. If precipitates are generated or the foam quality is deteriorated during storage at a low temperature, the adsorptivity of the cationic bactericide to the gingiva or the like may be reduced. Therefore, for the liquid oral cavity containing the foam discharge container of the present invention. If it is a composition, this can be effectively suppressed. Examples of such cationic bactericides include quaternary ammonium compounds, and specifically, one or two selected from cetylpyridinium chloride and benzethonium chloride are preferable. The content of such a cationic bactericidal agent is preferably 0.005% by mass or more, more preferably 0, in the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of effectively exhibiting a bactericidal action. It is .007 mass% or more. Further, the content of the cationic bactericide is 0.1% by mass or less in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of ensuring a good usability, and more preferably 0. It is 08% by mass or less. The content of the cationic bactericide is preferably 0.005 to 0.1% by mass, more preferably 0.007 to 0.08 in the liquid oral composition containing the foam discharge container of the present invention. It is mass%.

The mass ratio of the content of the cationic bactericidal agent to the content of the component (A) (cationic bactericidal agent / (A)) is preferably 0.005 or more from the viewpoint of effectively exhibiting the bactericidal action. It is more preferably 0.007 or more, further preferably 0.01 or more, and from the viewpoint of maintaining stability, it is preferably 0.1 or less, more preferably 0.08 or less, still more preferably. It is 0.05 or less.

The liquid oral composition containing a foam discharge container of the present invention has, for example, the alkyl sulfate ester salt of the above component (A) and the nonionic surfactant of the component (B) in addition to the above components, as long as the effects of the present invention are not impaired. It can contain a surfactant other than the agent, a polyol other than the component (C), a fragrance, a preservative, a pH adjuster, a pigment, a pigment and the like.
The liquid oral composition in a foam discharge container of the present invention can provide good foam quality and excellent low-temperature storage stability without containing an amphoteric surfactant such as betaine acetate or alkylsulfobetaine. .. The content of the amphoteric surfactant is determined in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of the flavor by the combined use with the component (A) and the component (B) and the suppression of the increase in viscosity at low temperature. It is preferably 0.7% by mass or less, more preferably 0.5% by mass or less, and further preferably 0.3% by mass or less.

Examples of the polyol other than the component (C) include sugar alcohols such as sorbitol, xylitol, erythritol, mannitol and reduced palatinose; sugars such as trehalol, maltose and isomalt; polyethylene glycol having a mass average molecular weight of more than 1000. The content of these solid or semi-solid polyols at room temperature is preferably 5% by mass or less in the liquid oral composition containing the foam discharge container of the present invention from the viewpoint of dischargeability from the foam discharge container. It is more preferably 3% by mass or less, still more preferably 2% by mass or less, and may not contain a polyol other than the component (C).

The fragrance may be any oil-soluble fragrance, for example, peppermint oil, sparemint oil, cinnamon oil, anis oil, eucalyptus oil, winter green oil, cassia oil, clove oil, thyme oil, sage oil, sage clary oil. , Natsumeg oil, funnel oil, lemon oil, orange oil, peppermint oil, cardamon oil, coriander oil, basil oil, mandarin oil, lime oil, lavender oil, rosemary oil, ginger oil, grapefruit oil, laurel oil, camo mill oil , Caraway oil, Majorum oil, Bay oil, Lemongrass oil, Lemon balm oil, Pimento berry oil, Palmarosa oil, Olivebanum oil, Pine needle oil, Petitgrain oil, Neroli oil, Rose oil, Jasmine oil and other natural fragrance ingredients, and Fragrance components processed from these natural fragrance components; menthol, pretor, carboxylic, anator, cineole, methyl salicylate, synamic aldehyde, eugenol, 3-1-mentoxypropane-1,2-diol, timol, citronellyl acetate, Linarol, linalyl acetate, geraniol, geranyl acetate, citronellol, limonene, menthon, mentyl acetate, N-substituted-paramentan-3-carboxamide, pinen, octylaldehyde, citral, pregon, carbyl acetate, dihydrocarbyl acetate, anisaldehyde, benzaldehyde , Kamfer, lactone, ethyl acetate, ethyl butyrate, allylcyclohexylpropionate, methyl anthranilate, ethyl methyl phenylglycidet, vanillin, undecalactone, hexanal, butyl acetate, isoamyl acetate, hexenol, dimethyl sulfide, cycloten, Single flavoring ingredients such as full flare, trimethylpyrazine, ethyl lactate, methyl lactate, ethyl thioacetate; strawberry flavor, apple flavor, banana flavor, pineapple flavor, grape flavor, mango flavor, butter flavor, milk flavor, fruit mix flavor, tropical fruit Examples include compounded fragrance components such as flavors.

Examples of the preservative include isobutyl paraoxybenzoate, isopropyl paraoxybenzoate, ethyl paraoxybenzoate, butyl paraoxybenzoate, propyl paraoxybenzoate, methyl paraoxybenzoate, benzoic acid, sodium benzoate, methyl salicylate, potassium sorbate. , Sodium dehydroacetate.

The content of these oily components, such as the above-mentioned fragrance, oily preservative, and other oily components, is contained in the liquid oral composition containing a foam discharge container of the present invention from the viewpoint of maintaining good storage stability. It is preferably 1% by mass or less, more preferably 0.8% by mass or less, still more preferably 0.5% by mass or less, and from the viewpoint of improving stability by using in combination with the component (B), flavor. From the viewpoint of ensuring the above, it is preferably 0.05% by mass or more, and more preferably 0.1% by mass & or more. Further, the mass ratio (oil component / (B)) of the content of these oily components to the content of the nonionic surfactant of the component (B) is preferably 1 or less from the same viewpoint, and more. It is preferably 0.8 or less, more preferably 0.5 or less, even more preferably 0.4 or less, and preferably 0.05 or more, more preferably, from the viewpoint of stability and flavor. It is 0.1 or more.

The liquid oral composition containing a foam discharge container of the present invention is filled in a foam discharge container provided with a discharge port. When the liquid oral composition containing a foam discharge container of the present invention is used, the liquid oral composition containing the contents is directly discharged into the oral cavity from the discharge port provided in the foam discharge container, and the discharge port is opened. The liquid oral composition that has passed through is applied into the oral cavity in the form of foam. As a result, even after storage at a low temperature, the above liquid oral composition can be distributed to every corner of the oral cavity without impairing the ejection property, and an excellent feeling of use is realized while providing good foam quality. can do.

The foam discharge container for filling the liquid oral composition may be any one provided with a discharge port, and may be a non-aerosol type container or an aerosol type container.

The non-aerosol type container is a normal pressure container that does not require a propellant such as a compressed gas, and examples of such a container include a squeeze type container and a pump type container. These containers have a viewpoint of forming a foamy composition well when the contents pass through the discharge port, and the formed foam has good retention and homogeneity, and enhances usability and the like. From this point of view, it is preferable that the container is formed by interposing a mesh or a porous member having a plurality of small holes in the flow path of the contents from the container body to the discharge port.

A squeeze-type container is a container in which the body located in the deformable container body is squeeze-deformed to mix the air and contents pumped from within the headspace while passing through a porous member as necessary. The bubbles are formed and the bubbles are discharged from the discharge port. Specifically, for example, the containers described in JP-A-7-215352, Jinkaisho 58-174272, and Jinkaisho 62-42787 can be used.

A pump-type container is a foam dispenser that has a discharge port. By pushing in the pump head, the air and contents that flow in from the outside are mixed and foamed while passing through a porous member as necessary. Is formed, and such bubbles are discharged from the discharge port. Usually, an air cylinder for inflowing air from the outside and a liquid cylinder serving as a flow path for the contents are provided, and a mixing chamber for mixing the air and the contents pumped by pushing the pump head is provided. Specifically, for example, the containers described in JP-A-7-315463, JP-A-8-230961, and Jitsukaihei 3-7963 can be used.

The aerosol type container is a container filled with compressed gas as a propellant, and when the contents are discharged from the discharge port, bubbles are formed while taking in the gas through the valve mechanism. The compressed gas to be used is preferably a gas containing 90% by mass or more of carbon dioxide gas.

The foam discharge container used in the present invention is a squeeze type container, a non-aerosol container which is a pump type container, or an aerosol container from the viewpoint of usability, that is, from the viewpoint of easily discharging the contents directly into the oral cavity from the discharge port. A squeeze container is more preferable from the viewpoint of convenience and portability, and a squeeze container having a mesh of # 90 to # 305 is further preferable in the flow path of the contents from the container body to the discharge port. preferable.

The liquid oral composition in a foam discharge container of the present invention is preferably transparent or translucent. In the present invention, "transparent" means that the transmittance of light having an absorption wavelength of 550 nm in a cell having an optical path length of 10 mm is 80% or more, preferably 90% or more, and 95% or more. It is more preferable that there is, and it may be either colored transparent or colorless transparent. The transmittance can be measured with an ultraviolet-visible spectrophotometer, for example, a "UV-2500 PC type measuring instrument" manufactured by Shimadzu Corporation, for a wavelength of 550 nm using a quartz cell having an optical path length of 1 mm.

Hereinafter, the present invention will be specifically described based on examples. Unless otherwise specified in the table, the content of each component indicates mass%.

[Examples 1 to 11, Comparative Examples 1 to 5]
Liquid oral compositions were prepared according to the formulations shown in Table 1, and each measurement and evaluation was performed according to the following methods.
The results are shown in Table 1.

<< Evaluation of low temperature stability >>
Each of the obtained liquid oral compositions is filled in a glass bottle and stored at −5 ° C. for 1 month, and then the liquid oral composition of the contents is visually observed from the outside of the glass bottle and evaluated according to the following criteria. did.
◯: Transparent and uniform Δ: Slightly cloudy but uniform ×: Precipitates were confirmed

<< Measurement of low temperature (-5 ° C) storage solution viscosity >>
Each of the obtained liquid oral compositions is filled in a glass bottle and stored at -5 ° C for 1 month, and then a BL viscometer (M1 rotor manufactured by Toki Sangyo Co., Ltd., rotation speed: 30 rpm / 1 minute). The liquid viscosity (mPa · s) was measured while maintaining the temperature at −5 ° C.

<< Measurement of container discharge foam viscosity >>
100 g of each liquid oral composition obtained is filled in a pump former container (Daiwa Seikan Co., Ltd., F5 pump former, mesh: 2 sheets, mesh size: # 255 / # 255), and the contents are filled from the discharge port. discharging the goods, BH viscometer (Toki Sangyo Co., Ltd., H2 rotor rotational speed: 5 rpm / 1 minute) was used to measure foam viscosity (P a · s) at room temperature (25 ° C.) ..

《Evaluation of usability》
100 g of each liquid oral composition obtained is filled in a pump former container (Daiwa Seikan Co., Ltd., F5 pump former, mesh: 2 sheets, mesh size: # 255 / # 255) and discharged from the discharge port. Three specialist panelists included the foam in the oral cavity, evaluated each item shown below according to each standard, and determined the evaluation result through consultation.
<Flavor>
1: Good flavor without bitterness 2: Slightly bitterness 3: Bitterness 4: Strong bitterness <Irritation>
1: I didn't feel any irritation 2: I felt some irritation 3: I felt irritation 4: I felt strong irritation <Foam quality>
1: Good foam quality with fine texture and excellent foam persistence even when gargled in the oral cavity 2: Good foam quality with fine texture and almost persistent foam even when gargled in the oral cavity 3 : Fine foam quality, no bubbles when squeezed in the oral cavity 4: Rough texture of bubbles, no bubbles when squeezed in the oral cavity 5: Almost no bubbles were formed at the time of discharge

Claims (7)

The following components (A), (B), (C) and (D):
(A) Alkyl sulfate ester salt 0.2% by mass or more and 1.5% by mass or less,
(B) Contains sucrose lauric acid ester (b-1), and the mass ratio ((b-1) / (A)) of the content of the component (b-1) to the content of the component (A) is 0. . 7 or more and 5 or less nonionic surfactant 0.5% by mass or more and 3% by mass or less,
(C) One or more polyols selected from glycerin, propylene glycol, butylene glycol, and polyethylene glycol having an average molecular weight of 1000 or less The total is 12 % by mass or more and 40% by mass or less, and (D) water 50% by mass or more. A foam discharge container containing 89% by mass or less, a component (b-1) content of 0.4% by mass or more and 2% by mass or less, and a abrasive powder content of 0.5% by mass or less. Liquid oral composition containing. The liquid oral composition in a foam discharge container according to claim 1, wherein the content of the binder is 0.3% by mass or less. The liquid oral composition in a foam discharge container according to claim 1 or 2, wherein the content of the polyoxyethylene cured castor oil (b-2) is 1.25% by mass or less. The liquid oral composition in a foam discharge container according to any one of claims 1 to 3, wherein the content of ethanol is 3% by mass or less. The liquid oral composition in a foam discharge container according to any one of claims 1 to 4, further comprising a cationic bactericide. The liquid oral composition containing a foam discharge container according to any one of claims 1 to 5, wherein the foam discharge container is a non-aerosol type container in which a porous member is interposed in the flow path of the contents. The method according to any one of claims 1 to 6, wherein the mass ratio ((B) / (A)) of the content of the component (B) to the content of the component (A) is 1.9 or more and 4 or less. Liquid oral composition in a foam discharge container.