Cosmetic article

Abstract

To provide a cosmetic article featuring excellent container color properties and excellent capability to inhibit color shifts in the cosmetic composition with which the container is filled.SOLUTION: A cosmetic article has a container containing a glass-based antimicrobial agent and (A2) at least one colorant selected from oxides or sulfides, the container being filled with a cosmetic composition. In the container, the mass ratio [(A1) / (A2)] of the content of (A1) to the content of (A2) is 0.014 or more and 0.6 or less. The cosmetic composition includes (B) at least one selected from polymers including acrylamide monomers or amino alcohols and (C) at least one selected from polyhydric alcohols and C1-3 monohydric alcohols.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to cosmetic articles. [Background technology]

[0002] In recent years, the number of times people wash their hands each day has increased due to heightened awareness of hygiene in the wake of the spread of novel coronavirus infections. Cosmetic products used when washing hands are often touched during handwashing, and therefore the cosmetic products themselves are required to be hygienic.

[0003] As a hygienic cosmetic article, for example, a pump dispenser equipped with a pump head containing an antibacterial agent has been proposed for the purpose of preventing the adhesion of bacteria during use (see, for example, Patent Document 1). However, conventional cosmetic articles including this proposal have concerns that the container will yellow when it contains an antibacterial agent, resulting in a poor color tone of the container. In addition, conventional cosmetic articles including the above proposal have concerns that the color tone of the composition will change over time when filled with a composition containing a polymer containing an amino alcohol or an acrylamide monomer.

[0004] Therefore, a cosmetic article in which the color of the container is good and the color tone of the composition filled in the cosmetic article does not change over time has not yet been provided, and there is currently a strong demand for the prompt development of such an article. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2017-105536 A Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present invention is to provide a cosmetic article in which the container has a good color and which is excellent in the effect of suppressing color change in the cosmetic composition filled therein. [Means for solving the problem]

[0007] The cosmetic article of the present invention is a cosmetic article obtained by filling a cosmetic composition into a container containing (A1) a glass-based antibacterial agent and (A2) at least one colorant selected from oxides or sulfides, wherein the mass ratio [(A1) / (A2)] of the content of (A1) in the container to the content of (A2) in the container is 0.014 or more and 0.6 or less, and the cosmetic composition contains (B) at least one selected from a polymer containing an acrylamide monomer or an amino alcohol, and (C) at least one selected from a polyhydric alcohol or a monohydric alcohol having 1 to 3 carbon atoms.

[0008] The present invention is based on the above findings by the present inventors, and the means for solving the above problems are as follows. <1> A cosmetic article comprising a cosmetic composition filled in a container containing (A1) a glass-based antibacterial agent and (A2) at least one colorant selected from oxides and sulfides, a mass ratio [(A1) / (A2)] of the content of (A1) in the container to the content of (A2) in the container is 0.014 or more and 0.6 or less, The cosmetic composition comprises: (B) at least one selected from a polymer containing an acrylamide monomer or an amino alcohol; and (C) at least one selected from polyhydric alcohols and monohydric alcohols having 1 to 3 carbon atoms. <2> The content of the (A1) is 0.5% by mass or more and 2% by mass or less with respect to the total mass of the container, The content of the (A2) is 2.0% by mass or more and 5.0% by mass or less with respect to the total mass of the container. <1> The cosmetic article according to claim 1, <3> The content of the (B) is 0.01% by mass or more and 1% by mass or less with respect to the total amount of the cosmetic composition, The content of the (C) is 1.0% by mass or more and 15% by mass or less with respect to the total amount of the cosmetic composition. <1> or the above <2> The cosmetic article according to claim 1, Effect of the Invention

[0009] According to the present invention, it is possible to provide a cosmetic article in which the color of the container is good and which is excellent in the effect of suppressing color change in the cosmetic composition filled therein. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (Cosmetic items) The cosmetic article of the present invention is prepared by filling a cosmetic composition into a container containing (A1) a glass-based antibacterial agent and (A2) at least one colorant selected from oxides or sulfides. In this specification, the (A1) glass-based antibacterial agent may be referred to as "component (A1)" or "(A1)", and the (A2) at least one colorant selected from oxides and sulfides may be referred to as "component (A2)" or "(A2)".

[0011] <Container> The container contains (A1) a glass-based antibacterial agent, and (A2) at least one colorant selected from oxides and sulfides, and may contain other components (D1) as necessary. In this specification, the "container" differs from the cosmetic article in that it is not filled with a cosmetic composition.

[0012] <<(A1) Glass-based antibacterial agent>> The (A1) glass-based antibacterial agent is mainly contained to suppress color change in the cosmetic composition filled in the container. By blending the glass-based antibacterial agent in the container, antibacterial properties are imparted to the container, and it is possible to suppress the blackening and yellowing of the container during repeated use and the generation of biofilms (the "sliminess" or "slime" that occurs around water) which are aggregates of substances produced by microorganisms and bacterial bodies.

[0013] The component (A1) is not particularly limited and can be appropriately selected depending on the purpose. From the viewpoint of improving the effect of suppressing color change in the cosmetic composition filled in a container, however, zinc-based soluble glass, silver-based soluble glass, and copper-based soluble glass are preferred, and zinc-based soluble glass is more preferred.

[0014] The content of the (A1) component is not particularly limited and can be appropriately set depending on the purpose. From the viewpoints of the effect of suppressing color change in the cosmetic composition filled in the container and preventing yellowing of the container, the content is preferably from 0.1% by mass to 2.4% by mass, and more preferably from 0.5% by mass to 2% by mass, relative to the total mass of the container. When the content of the component (A1) is 0.1% by mass or more relative to the total mass of the container, this is preferable because it provides a good effect of suppressing color change in the cosmetic composition filled in the container. If the content of the component (A1) is 2.4 mass % or less based on the total mass of the container, the container is preferably free from yellowing.

[0015] The component (A1) may be appropriately synthesized or may be a commercially available product. Examples of commercially available products of the component (A1) include, by trade name, IONPURE (zinc-based soluble glass, manufactured by Ishizuka Glass Co., Ltd.), IONPURE (silver-based soluble glass, manufactured by Ishizuka Glass Co., Ltd.), NOVARON VAG500 (silver-based glass-based antibacterial agent, manufactured by Toagosei Co., Ltd.), and IONPURE (copper-based soluble glass, manufactured by Ishizuka Glass Co., Ltd.).

[0016] <<(A2) At least one colorant selected from oxides and sulfides>> The at least one colorant selected from the group consisting of oxides and sulfides (A2) is contained mainly for the purpose of coloring the container.

[0017] The component (A2) is not particularly limited and can be appropriately selected depending on the purpose. Examples include oxides or sulfides of elements in the third and fourth periods among elements in groups 2 to 14. Specific examples of the component (A2) include titanium oxide, iron oxide, chromium oxide, and zinc sulfide, and titanium oxide is more preferred from the viewpoint of coloring the container.

[0018] The content of the (A2) component is not particularly limited and can be appropriately set depending on the purpose. From the viewpoint of coloring the container, however, the content is preferably 1.0 mass % or more and 7.0 mass % or less, and more preferably 2.0 mass % or more and 5.0 mass % or less, relative to the total mass of the container. If the content of the component (A2) is 1.0% by mass or more based on the total mass of the container, the container will be favorably colored. When the content of the component (A2) is 7.0% by mass or less based on the total mass of the container, the problem of being unable to mold the container can be suitably resolved.

[0019] The component (A2) may be a synthesized product or a commercially available product, such as CR-90 (titanium oxide, manufactured by Ishihara Sangyo Kaisha), ferric oxide (iron oxide, manufactured by Tetsugen Co., Ltd.), polishing chromium oxide (chromium oxide, manufactured by Nippon Chemical Industry Co., Ltd.), zinc sulfide (manufactured by Kanto Chemical Co., Ltd.), etc.

[0020] In the present invention, the mass ratio [(A1) / (A2)] of the content of (A1) in the container to the content of (A2) in the container is 0.014 or more and 0.6 or less. In this specification, the "mass ratio [(A1) / (A2)] of the content of (A1) in the container to the content of (A2) in the container" may be simply referred to as the "mass ratio [(A1) / (A2)]." The mass ratio [(A1) / (A2)] is preferably 0.1 or more and 0.45 or less, from the viewpoint of the effect of suppressing color change in the cosmetic composition filled in the container and the effect of suppressing yellowing of the container. When the mass ratio [(A1) / (A2)] is 0.014 or more, the effect of suppressing color tone change in the cosmetic composition filled in a container is favorable. When the mass ratio [(A1) / (A2)] is 0.6 or less, the effect of inhibiting yellowing of the container is favorable.

[0021] <<Other ingredients (D1)>> The other component (D1) is not particularly limited and can be appropriately selected depending on the purpose. Examples of the other component (D1) include antioxidants, antistatic agents, and ultraviolet absorbers. The antioxidant is not particularly limited and can be appropriately selected depending on the purpose. Examples of the antioxidant include phenol-based, phosphorus-based, and sulfur-based antioxidants. The antistatic agent is not particularly limited and can be appropriately selected depending on the purpose. Examples of the antistatic agent include nonionic, anionic, and cationic antistatic agents. The ultraviolet absorbing agent is not particularly limited and can be appropriately selected depending on the purpose. Examples of the ultraviolet absorbing agent include benzotriazole-based and triazine-based ultraviolet absorbing agents.

[0022] <Container manufacturing method> The method for producing the container is not particularly limited and can be appropriately selected depending on the purpose. For example, the container can be produced by blow molding, injection molding, or the like.

[0023] <Cosmetic composition> The cosmetic composition is filled in the container and contains (B) at least one selected from a polymer containing an acrylamide monomer or an amino alcohol, and (C) at least one selected from a polyhydric alcohol or a monohydric alcohol having 1 to 3 carbon atoms, and may contain other components (D2) as necessary. In this specification, (B) at least one selected from a polymer containing an acrylamide monomer or an amino alcohol may be referred to as "component (B)" or "(B)", and (C) at least one selected from a polyhydric alcohol or a monohydric alcohol having 1 to 3 carbon atoms may be referred to as "component (C)" or "(C)".

[0024] <<(B) At least one selected from a polymer containing an acrylamide monomer or an amino alcohol>>

[0025] -Polymers containing acrylamide monomers- The polymer containing an acrylamide monomer is not particularly limited and can be appropriately selected depending on the purpose, but is preferably a dimethyldiallylammonium chloride-acrylamide copolymer or an acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer.

[0026] The polymer containing an acrylamide monomer is preferably a copolymer represented by the following general formula (1).

[0027] [ka] In the general formula (1), n, m, and z each represent a molar ratio (mol %) of each structural unit, and n+m+z=100. The n is preferably 0 to 34, the m is preferably 24 to 31, and the z is preferably 35 to 76.

[0028] The molar ratio of each structural unit in the copolymer can be determined by measuring by nuclear magnetic resonance (NMR) under the following measurement conditions. [Measurement conditions] Solvent: Deuterium oxide (DO) Measuring instrument: JNM-LA300 (300MHz, manufactured by JEOL Ltd.)

[0029] The weight average molecular weight of the copolymer is not particularly limited and can be appropriately selected depending on the purpose, but is preferably from 100,000 to 3,000,000, and more preferably from 100,000 to 1,600,000. The weight average molecular weight of the copolymer can be measured, for example, by a SEC-MALLS-RI system (measurement conditions: column: 30 cm TSKgel α series α-M column manufactured by Tosoh Corporation, solvent: 0.3 M aqueous sodium nitrate solution).

[0030] The viscosity of the copolymer solution having a solid content of 8% by mass to 45% by mass at 25° C. is not particularly limited and can be appropriately selected depending on the purpose, but is preferably 1,500 mPa·s to 16,000 mPa·s. The viscosity can be measured, for example, by using a Brookfield viscometer LVF (manufactured by Brookfield Corporation).

[0031] The polymer containing the acrylamide monomer may be appropriately synthesized or may be a commercially available product. Examples of commercially available polymers containing the acrylamide monomer include Merquat (registered trademark) 550PR, Merquat 740, Merquat 3330PR, Merquat 3331PR, and Merquat 3940 (all manufactured by Lubrizol Corporation). Details of each commercially available product are shown below.

[0032] Merquat 550PR (component name: dimethylallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content of 8.8% by mass to 9.8% by mass, viscosity at 25°C: 7,500 mPa s to 15,000 mPa s, weight average molecular weight: 1,600,000, n:m:z in the general formula (1) above = 0:30:70). The viscosity can be measured using a Brookfield viscometer LVF (manufactured by Brookfield Corporation) at 25° C. with a rotor of spindle No. 4 at 10 revolutions per minute.

[0033] Merquat 740 (component name: dimethylallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content of 41% by mass to 45% by mass, viscosity at 25°C: 2,000 mPa s to 12,000 mPa s, weight average molecular weight: 120,000, n:m:z in the general formula (1) above = 0:24:76). The viscosity can be measured using a Brookfield viscometer LVF (manufactured by Brookfield Corporation) at 25° C. with a rotor of spindle No. 4 at 10 revolutions per minute.

[0034] Merquat 3330PR (component name: acrylic acid-dimethyldiallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content of 10.2% by mass to 11.5% by mass, viscosity at 25°C: 1,000 mPa s to 6,000 mPa s, weight average molecular weight: 1,500,000, n:m:z in the general formula (1) above = 34:31:35). The viscosity can be measured using a Brookfield viscometer LVF (manufactured by Brookfield Corporation) at 25° C. with a spindle No. 4 rotor at 30 revolutions per minute.

[0035] Merquat 3331PR (component name: acrylic acid-dimethyldiallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, solid content of 9.7% by mass to 10.7% by mass, viscosity at 25°C: 2,000 mPa s to 12,000 mPa s, weight average molecular weight: 1,600,000, n:m:z in the general formula (1) above = 22.5:26.5:51). The viscosity can be measured using a Brookfield viscometer LVF (manufactured by Brookfield Corporation) at 25° C. with a spindle No. 5 rotor at 30 revolutions per minute.

[0036] Merquat 3940 (component name: acrylic acid-dimethyldiallylammonium chloride-acrylamide copolymer, manufactured by Lubrizol Corporation, viscosity at 25°C with solid content of 41% by mass to 45% by mass: 1,500 mPa s to 4,500 mPa s, weight average molecular weight: 150,000, n:m:z in the general formula (1) above = 31:29:40). The viscosity can be measured using a Brookfield viscometer LVF (manufactured by Brookfield Corporation) at 25° C. with a rotor of spindle No. 3 at 10 revolutions per minute.

[0037] -Amino alcohol- The amino alcohol is not particularly limited and can be appropriately selected depending on the purpose, but monoethanolamine, diethanolamine, triethanolamine, and 2-amino-2-methyl-1-propanol are preferred.

[0038] The amino alcohol may be appropriately synthesized or may be a commercially available product. Examples of the commercially available amino alcohol include monoethanolamine (manufactured by Nippon Shokubai Co., Ltd.), diethanolamine (manufactured by Nippon Shokubai Co., Ltd.), triethanolamine (manufactured by Nippon Shokubai Co., Ltd.), and AMP-ULTRA PC 1000 (2-amino-2-methyl-1-propanol, manufactured by ANGUS Chemical Company).

[0039] Of the above-mentioned components (B), dimethyldiallylammonium chloride-acrylamide copolymer, acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer, monoethanolamine, and diethanolamine are more preferred, and dimethyldiallylammonium chloride-acrylamide copolymer and acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer are even more preferred.

[0040] The content of the (B) component is not particularly limited and can be set appropriately depending on the purpose. From the viewpoint of the effect of suppressing color change in the cosmetic composition filled in a container, the content is preferably from 0.01% by mass to 2.0% by mass, more preferably from 0.01% by mass to 1.0% by mass, and even more preferably from 0.01% by mass to 0.5% by mass, relative to the total amount of the cosmetic composition. If the content of the component (B) is 2.0% by mass or less relative to the total amount of the cosmetic composition, this is preferable because it provides a good effect of suppressing color change in the cosmetic composition filled in a container.

[0041] <(C) At least one selected from polyhydric alcohols and monohydric alcohols having 1 to 3 carbon atoms> The (C) at least one selected from polyhydric alcohols and monohydric alcohols having 1 to 3 carbon atoms is contained mainly for the purpose of suppressing a change in color tone in the cosmetic composition filled in a container.

[0042] -Polyhydric alcohol- The polyhydric alcohol is not particularly limited and can be appropriately selected depending on the purpose. From the viewpoint of the effect of suppressing color change in the cosmetic composition filled in a container, however, propylene glycol, 1,3-propanediol, glycerin, sorbitol, butylene glycol, dipropylene glycol, and diglycerin are preferred.

[0043] The polyhydric alcohol may be appropriately synthesized or may be commercially available. Examples of commercially available polyhydric alcohols include, by trade name, cosmetic propylene glycol (propylene glycol, manufactured by ADEKA Corporation), cosmetic glycerin (85%) (glycerin, manufactured by Sakamoto Pharmaceutical Industry Co., Ltd.), Sorbitol D-70 (D-sorbitol solution (D-sorbitol 70%)) (sorbitol, manufactured by Mitsubishi Corporation Life Sciences Co., Ltd.), 1,3-butylene glycol (butylene glycol, manufactured by Iwase Cosfa Co., Ltd.), dipropylene glycol FG (dipropylene glycol, manufactured by Iwase Cosfa Co., Ltd.), and diglycerin S (diglycerin, manufactured by Sakamoto Pharmaceutical Industry Co., Ltd.).

[0044] -Monohydric alcohols having 1 to 3 carbon atoms- The monohydric alcohol having 1 to 3 carbon atoms is not particularly limited and can be appropriately selected depending on the purpose, but from the viewpoint of the effect of suppressing color change in the cosmetic composition filled in a container, ethanol and isopropanol are preferred.

[0045] The monohydric alcohol having 1 to 3 carbon atoms may be appropriately synthesized or may be a commercially available product. Examples of commercially available monohydric alcohol having 1 to 3 carbon atoms include 95% synthetic specific alcohol (ethanol, manufactured by Shinwa Alcohol Industry Co., Ltd.) and isopropyl alcohol (isopropanol, manufactured by Godo Co., Ltd.).

[0046] As the component (C), among those mentioned above, from the viewpoint of the effect of suppressing a change in color tone in the cosmetic composition filled in a container, propylene glycol, glycerin, butylene glycol, dipropylene glycol, diglycerin, ethanol, and isopropanol are more preferable, and propylene glycol and ethanol are even more preferable.

[0047] The content of the (C) component is not particularly limited and can be set appropriately depending on the purpose. From the viewpoint of the effect of suppressing color change in the cosmetic composition filled in a container, the content is preferably from 0.1% by mass to 60% by mass, more preferably from 0.5% by mass to 30% by mass, and even more preferably from 1.0% by mass to 15% by mass, relative to the total amount of the cosmetic composition. When the content of the component (C) is 0.1% by mass or more relative to the total amount of the cosmetic composition, this is preferable because it provides a good effect of suppressing color change in the cosmetic composition filled in a container.

[0048] <Other ingredients (D2)> In addition to the components (B) and (C), the cosmetic composition may contain other components (D2) that are typically used in cosmetic compositions, as necessary, within the scope of the present invention. The other component (D2) is not particularly limited and can be appropriately selected depending on the purpose. Examples of the other component (D2) include surfactants, water-soluble polymers other than the component (B), oils, silicones, alcohols other than the component (C), lanolin derivatives, protein derivatives, amino acids, vitamins and other drugs, bactericides, preservatives, pH adjusters, antioxidants, sequestering agents, animal and plant extracts or derivatives thereof, chelating agents, moisturizers, thickeners, ultraviolet absorbing agents or scattering agents, dyes, pigments, water-insoluble polymer compound powders, and the like.

[0049] <<Surfactants>> Examples of the surfactant include anionic surfactants, cationic surfactants, amphoteric surfactants, and nonionic surfactants.

[0050] <<<Anionic surfactants>>> The anionic surfactant is not particularly limited and can be appropriately selected depending on the purpose, but higher fatty acid salts, polyoxyethylene alkyl ether sulfates, ether carboxylic acids or salts thereof are preferred, and higher fatty acid salts are more preferred. These may be used alone or in combination of two or more.

[0051] -Higher fatty acid salts- The higher fatty acid salt is not particularly limited and may be appropriately selected depending on the purpose, and examples thereof include laurate, myristate, palmitate, stearate, etc. Among these, laurate, myristate, and palmitate are preferred.

[0052] The counter ion in the higher fatty acid salt of the anionic surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples of the counter ion include an alkali metal ion, an ammonium ion, an alkanolamine, and a basic amino acid. Examples of the alkali metal ion include sodium ion and potassium ion. Examples of the alkanolamine include monoethanolamine, diethanolamine, and triethanolamine. Examples of the basic amino acid include lysine and arginine.

[0053] The higher fatty acid salt can be blended as a higher fatty acid salt, but a higher fatty acid and a salt serving as a counter ion may be added separately to a blending tank and subjected to a neutralization reaction to form a higher fatty acid salt.

[0054] The higher fatty acid used in the preparation of the higher fatty acid salt may be appropriately synthesized or may be a commercially available product. Examples of the commercially available higher fatty acid include NAA (registered trademark)-122 (lauric acid, manufactured by NOF Corporation), NAA-142 (myristic acid, manufactured by NOF Corporation), NAA-160 (palmitic acid, manufactured by NOF Corporation), and NAA-180 (stearic acid, manufactured by NOF Corporation).

[0055] The higher fatty acid salt may be appropriately synthesized or may be a commercially available product. Examples of commercially available higher fatty acid salts include, by trade name, NIKKOL potassium laurate LK-120 (potassium laurate, manufactured by Nikko Chemicals Co., Ltd.), NIKKOL potassium myristate MK-140 (potassium myristate, manufactured by Nikko Chemicals Co., Ltd.), and Tysoap MNK-40 (liquid containing potassium coconut oil fatty acid and potassium myristate, manufactured by Nikko Chemicals Co., Ltd.).

[0056] -Polyoxyethylene (POE) alkyl ether sulfate- The polyoxyethylene alkyl ether sulfate is not particularly limited and can be appropriately selected depending on the purpose, and examples thereof include compounds represented by the following general formula (A1): The polyoxyethylene alkyl ether sulfate may be used alone or in combination of two or more kinds.

[0057] [ka]

[0058] In the general formula (A1), R 1 represents an alkyl group, and the alkyl group moiety preferably has 10 to 14 carbon atoms.

[0059] In the general formula (A1), n ​​represents the average number of moles of ethylene oxide (EO) added, and the average number of moles of ethylene oxide added is preferably 1 to 5.

[0060] In the general formula (A1), X represents an alkali metal or ammonium. The alkali metal is not particularly limited and can be appropriately selected depending on the purpose. Examples of the alkali metal include sodium and potassium.

[0061] Specific examples of the polyoxyethylene alkyl ether sulfate include polyoxyethylene (1) sodium lauryl ether sulfate, polyoxyethylene (2) sodium lauryl ether sulfate (also known as POE (2) sodium laureth sulfate), polyoxyethylene (3) sodium lauryl ether sulfate (also known as POE (3) sodium laureth sulfate), polyoxyethylene (4) sodium lauryl ether sulfate, polyoxyethylene (5) sodium lauryl ether sulfate, polyoxyethylene (3) sodium alkyl (C12,13) ​​ether sulfate, polyoxyethylene (2) lauryl ether ammonium sulfate, and polyoxyethylene (3) lauryl ether ammonium sulfate. The numerical value in the parentheses indicates the average number of moles (n) of ethylene oxide (EO) added.

[0062] -Ether carboxylic acid or its salt- The ether carboxylic acid or a salt thereof is not particularly limited and can be appropriately selected depending on the purpose, and examples thereof include compounds represented by the following general formula (A2) or (A3): The ether carboxylic acid or a salt thereof may be used alone or in combination of two or more kinds.

[0063] [ka]

[0064] In the general formulas (A2) and (A3), R 2 represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, or a phenyl group substituted with a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms. 2 The moiety preferably has 10 to 14 carbon atoms. In the general formula (A2), R 3 may be the same or different and represent an alkylene group having 2 to 4 carbon atoms, preferably 2 carbon atoms. In the general formula (A2), o represents the average number of moles of alkylene oxide added, which is 1 to 20. The average number of moles of alkylene oxide added is preferably 1 to 5. In the general formulae (A2) and (A3), M 1 represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or a basic amino acid.

[0065] Among these, polyoxyalkylene alkyl ether carboxylic acid or a salt thereof is preferable. As the polyoxyalkylene alkyl ether carboxylic acid or a salt thereof, polyoxyethylene (POE) alkyl ether acetate is preferable.

[0066] The ether carboxylate may be an appropriately synthesized product or a commercially available product. Examples of commercially available ether carboxylates include, by trade name, Energyl EC-30 (manufactured by Lion Specialty Chemicals Co., Ltd., polyoxyethylene (3) lauryl ether sodium acetate), Viewlite LCA-25F (polyoxyethylene (3) lauryl ether sodium acetate), Viewlite LCA-30D (polyoxyethylene (3) lauryl ether sodium acetate), Viewlite LCA-H (polyoxyethylene (4) lauryl ether acetic acid), Viewlite LCA-25NH (laureth-4 carboxylic acid), Viewlite SHAA (sodium lauryl glycol carboxylate), Viewlite LCA (polyoxyethylene (3) lauryl ether sodium acetate) (all manufactured by Sanyo Chemical Industries, Ltd.), Kao Akipo RLM-45NV (polyoxyethylene (4.5) lauryl ether sodium acetate), and Kao Akipo RLM-100NV (polyoxyethylene (10) lauryl ether sodium acetate) (all manufactured by Kao Corporation). The numerical value in the parentheses indicates the average number of moles (o) of alkylene oxide added.

[0067] The content of the anionic surfactant is not particularly limited and can be appropriately selected depending on the purpose, but it is preferably from 1.0% by mass to 25% by mass, and more preferably from 3% by mass to 7% by mass, relative to the total amount of the cosmetic composition.

[0068] <<<Cationic surfactants>>> The cationic surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples of the cationic surfactant include alkylamine salts, fatty acid amidoamine salts, alkyltrimethylammonium salts, dialkyldimethylammonium salts, and alkyldimethylbenzylammonium salts.

[0069] <<<Amphoteric surfactants>>> The amphoteric surfactant is not particularly limited and may be appropriately selected depending on the purpose, and examples thereof include betaine-type amphoteric surfactants, amino acid-type amphoteric surfactants, etc. Among these, betaine-type amphoteric surfactants are preferred. These may be used alone or in combination of two or more.

[0070] The betaine type amphoteric surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples thereof include alkyl betaine type amphoteric surfactants, amido betaine type amphoteric surfactants, sulfo betaine type amphoteric surfactants, and imidazolinium betaine type amphoteric surfactants. These may be used alone or in combination of two or more.

[0071] The alkyl betaine type amphoteric surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples thereof include lauryl dimethyl amino acetate betaine, coconut oil alkyl betaine, and stearyl dimethyl amino acetate betaine. These may be used alone or in combination of two or more.

[0072] The amidobetaine type amphoteric surfactant is not particularly limited and may be appropriately selected depending on the purpose. Examples thereof include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, and palm kernel oil fatty acid amidopropyl betaine. These may be used alone or in combination of two or more.

[0073] The sulfobetaine type amphoteric surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples thereof include lauryl hydroxysulfobetaine, lauramidopropyl hydroxysultaine, coconut oil fatty acid dimethylamino hydroxysulfobetaine, and lauryl dimethylamino hydroxysulfobetaine. These may be used alone or in combination of two or more.

[0074] The imidazoline-type amphoteric surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples thereof include sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine, sodium N-coconut oil fatty acid acyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine, and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine. These may be used alone or in combination of two or more.

[0075] Among these, amidobetaine type amphoteric surfactants and alkylbetaine type amphoteric surfactants are preferred, lauric acid amphoteric propyl betaine and lauryl dimethylaminoacetic acid betaine are more preferred, and lauric acid amphoteric propyl betaine is even more preferred.

[0076] The content of the amphoteric surfactant is not particularly limited and can be appropriately selected depending on the purpose, but is preferably from 2% by mass to 15% by mass, more preferably from 3% by mass to 10% by mass, and even more preferably from 4% by mass to 10% by mass, relative to the total amount of the cosmetic composition.

[0077] The amphoteric surfactant may be a suitably synthesized one or a commercially available product. Examples of commercially available amphoteric surfactants include alkyl betaine-type amphoteric surfactants such as Amphitol 24B (lauryl dimethylaminoacetic acid betaine, manufactured by Kao Corporation), Nissan Anon (registered trademark) BL (lauryl dimethylaminoacetic acid betaine, manufactured by NOF Corporation), NIKKOL AM-301 (lauryl dimethylaminoacetic acid betaine, manufactured by Nikko Chemicals Co., Ltd.), Amogene (registered trademark) S (lauryl dimethylaminoacetic acid betaine, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.), and Amogene SH (lauryl dimethylaminoacetic acid betaine, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.); amido betaine-type amphoteric surfactants such as Energylcol L-30B (lauric acid amidopropyl betaine, manufactured by Lion Specialty Chemicals Co., Ltd.), Nissan Anon BDF-SF (coconut oil fatty acid amidopropyl betaine, manufactured by NOF Corporation), and Obazoline CAG-30 (coconut oil fatty acid amidopropyl betaine, manufactured by Toho Chemical Industry Co., Ltd.); Examples of such surfactants include sulfobetaine-type amphoteric surfactants such as 20HD (lauryl hydroxysulfobetaine, manufactured by Kao Corporation) and Softazoline LSB (lauramidopropyl hydroxysultaine, manufactured by Kawaken Fine Chemicals Co., Ltd.); and imidazoline-type amphoteric surfactants such as NIKKOL AM-101 (2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, manufactured by Nikko Chemicals Co., Ltd.) and Nissan Anon GLM-R-LV (2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, manufactured by NOF Corporation).

[0078] As the amphoteric surfactant, in addition to the above-mentioned ones, an alkylamine oxide compound can also be used. The alkylamine oxide compound is not particularly limited and can be appropriately selected depending on the purpose. Examples of the alkylamine oxide compound include alkyldimethylamine oxide and dihydroxyethyllaurylamine oxide. Examples of the alkyl dimethylamine oxide include lauryl dimethylamine oxide, myristyl dimethylamine oxide, coconut alkyl dimethylamine oxide, oleyl dimethylamine oxide, etc. Among these, lauryl dimethylamine oxide is preferred. These may be used alone or in combination of two or more.

[0079] The content of the alkylamine oxide compound is preferably from 1% by mass to 4% by mass, and more preferably from 1% by mass to 3% by mass, based on the total amount of the cosmetic composition.

[0080] <<<Nonionic surfactants>>> The nonionic surfactant is not particularly limited and can be appropriately selected depending on the purpose. Examples of the nonionic surfactant include polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, glycerin fatty acid esters, sorbitan fatty acid esters, polyglycerin fatty acid esters, sucrose fatty acid esters, alkyl polyglycosides, and polyoxyethylene polyoxypropylene glycols.

[0081] <<Oil content>> The oil is not particularly limited and can be appropriately selected depending on the purpose. Examples of the oil include vegetable oils and fats such as castor oil, olive oil, cacao oil, hardened palm oil, camellia oil, coconut oil, wood wax, jojoba oil, grapeseed oil, avocado oil, and ester compounds thereof; animal oils and fats such as mink oil and egg yolk oil; waxes such as beeswax, whale wax, lanolin, hydrogenated lanolin, carnauba wax, and candelilla wax; hydrocarbons such as liquid paraffin, squalane, microcrystalline wax, ceresin wax, paraffin wax, and petrolatum; natural and synthetic fatty acids such as oleic acid, isostearic acid, and behenic acid; and esters such as glycerol tri-2-ethylhexanoate, 2-ethylhexyl stearate, butyl stearate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, octyldodecyl oleate, and cholesterol oleate. These may be used alone or in combination of two or more. The content of the oil is not particularly limited and can be appropriately selected depending on the purpose, but it is preferably from 0.1% by mass to 3% by mass relative to the total amount of the cosmetic composition.

[0082] <<Alcohols other than component (C)>> The alcohol other than the component (C) is not particularly limited and can be appropriately selected depending on the purpose, and may be, for example, a lower alcohol having 4 or more carbon atoms or a higher alcohol. Specific examples of the alcohol other than the component (C) include natural and synthetic higher alcohols such as cetyl alcohol, oleyl alcohol, stearyl alcohol, hexyldecanol, octyldodecanol, and lauryl alcohol. These may be used alone or in combination of two or more. The content of alcohols other than the component (C) is not particularly limited and can be appropriately selected depending on the purpose, but is preferably 0.01% by mass or more and 15% by mass or less based on the total amount of the cosmetic composition.

[0083] <<Moisturizer>> The moisturizing agent is not particularly limited and can be appropriately selected depending on the purpose. For example, hydrogenated castor oil (30 E.O.) is included. These may be used alone or in combination of two or more. The content of the moisturizing agent is not particularly limited and can be appropriately selected depending on the purpose, but is preferably 0.01% by mass or more and 10.0% by mass or less relative to the total amount of the cosmetic composition.

[0084] <<Thickener>> The thickener is not particularly limited and can be appropriately selected depending on the purpose. Examples of the thickener include natural polymers such as sodium alginate, xanthan gum, aluminum silicate, quince seed extract, tragacanth gum, and starch, semi-synthetic polymers such as methylcellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, and soluble starch, and synthetic polymer compounds such as carboxyvinyl polymer, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid, and methacryloylethyl betaine-methacrylic acid ester copolymer. These may be used alone or in combination of two or more. The content of the thickener is not particularly limited and can be appropriately selected depending on the purpose, but is preferably 0.01% by mass or more and 1.0% by mass or less relative to the total amount of the cosmetic composition.

[0085] <<Preservatives>> The preservative is not particularly limited and can be appropriately selected depending on the purpose. Examples of the preservative include benzoates, sorbates, dehydroacetates, paraoxybenzoates, 2,4,4'-trichloro-2'-hydroxydiphenyl ether, 3,4,4'-trichlorocarbanilide, benzalkonium chloride, hinokitiol, resorcinol, methylchloroisothiazolinone-methylisothiazolinone solution (product name: Cason CG, manufactured by Rohm and Haas Japan), salicylic acid, pentanediol, phenoxyethanol, and ethanol. These may be used alone or in combination of two or more. The content of the preservative is not particularly limited and can be appropriately selected according to the purpose. However, it is preferably 0.01% by mass or more and 1.0% by mass or less based on the total amount of the cosmetic composition.

[0086] <<Antioxidant>> The antioxidant is not particularly limited and can be appropriately selected according to the purpose. Examples thereof include dibutylhydroxytoluene, butylhydroxyanisole, ascorbic acid and the like. These may be used alone or in combination of two or more. The content of the antioxidant is not particularly limited and can be appropriately selected according to the purpose. However, it is preferably 0.001% by mass or more and 1.0% by mass or less based on the total amount of the cosmetic composition.

[0087] <<Chelating agent>> The chelating agent is not particularly limited and can be appropriately selected according to the purpose. Examples thereof include edetic acid, disodium edetate, ethylenediaminetetraacetate, hexametaphosphate, gluconic acid and the like. These may be used alone or in combination of two or more. The content of the chelating agent is not particularly limited and can be appropriately selected according to the purpose. However, it is preferably 0.001% by mass or more and 5.0% by mass or less based on the total amount of the cosmetic composition.

[0088] <<pH adjuster>> The pH adjuster is not particularly limited and can be appropriately selected according to the purpose. Examples thereof include sodium hydroxide, potassium hydroxide, citric acid, succinic acid, aqueous ammonia, phosphoric acid, glycolic acid, hydrochloric acid and the like. These may be used alone or in combination of two or more.

[0089] <<UV absorber or scattering agent>> The ultraviolet absorbing agent or scattering agent is not particularly limited and can be appropriately selected depending on the purpose. Examples thereof include 2-hydroxy-4-methoxybenzophenone, octyl dimethyl paraaminobenzoate, ethylhexyl paramethoxycyanamate, titanium oxide, kaolin, and talc. These may be used alone or in combination of two or more. The content of the ultraviolet absorbing agent or scattering agent is not particularly limited and can be appropriately selected depending on the purpose, but it is preferably 0.01% by mass or more and 1.0% by mass or less relative to the total amount of the cosmetic composition.

[0090] <<Vitamins>> The vitamins are not particularly limited and can be appropriately selected depending on the purpose. Examples of the vitamins include vitamin A, B vitamins, vitamin C, vitamin D, vitamin E, vitamin F, vitamin K, vitamin P, vitamin U, carnitine, ferulic acid, γ-oryzanol, α-lipoic acid, orotic acid, and derivatives thereof. These may be used alone or in combination of two or more. The content of the vitamins is not particularly limited and can be appropriately selected depending on the purpose, but is preferably from 0.01% by mass to 1.0% by mass relative to the total amount of the cosmetic composition.

[0091] <<Amino acids>> The amino acids are not particularly limited and can be appropriately selected depending on the purpose. Examples of the amino acids include glycine, alanine, valine, leucine, isoleucine, phenylalanine, tryptophan, cystine, cysteine, methionine, proline, hydroxyproline, aspartic acid, glutamic acid, arginine, histidine, lysine, and derivatives thereof. These may be used alone or in combination of two or more. The content of the amino acids is not particularly limited and can be appropriately selected depending on the purpose, but is preferably 0.01% by mass or more and 1.0% by mass or less based on the total amount of the cosmetic composition.

[0092] <<Water-insoluble polymer compound powder>> The water-insoluble polymer compound powder is not particularly limited and can be appropriately selected depending on the purpose. Examples of the water-insoluble polymer compound powder include inorganic powder, clay mineral, nylon, and polyethylene. These may be used alone or in combination of two or more. The content of the water-insoluble polymer compound powder is not particularly limited and can be appropriately selected depending on the purpose, but it is preferably 0.1% by mass or less based on the total amount of the cosmetic composition.

[0093] The other component (D2) may be an appropriately synthesized product or a commercially available product. The content of the other component (D2) relative to the total amount of the cosmetic composition is not particularly limited and can be appropriately selected depending on the purpose.

[0094] <ph> The pH of the cosmetic composition at 25° C. is preferably from 3.0 to 11.0, and more preferably from 4.5 to 10.6. The method for measuring the pH is not particularly limited, and examples thereof include a method using a glass electrode color hydrogen ion concentration indicator HM-30R (electrode type GST-5721, manufactured by DKK-TOA Corporation).

[0095] <Viscosity> The viscosity of the cosmetic composition at 25° C. is not particularly limited and may be appropriately selected depending on the purpose, but is preferably 400 mPa·s or less, and more preferably 3 mPa·s or more and 350 mPa·s or less. The method for measuring the viscosity is not particularly limited, and examples thereof include a method of measuring the viscosity after 1 minute using a BM type viscometer (manufactured by Tokyo Keiki Co., Ltd.) at a sample temperature of 25°C, a rotation speed of 60 rpm, and rotor No. 1, or at a sample temperature of 25°C, a rotation speed of 30 rpm, and rotor No. 2.

[0096] <Method for producing cosmetic composition> The method for producing the cosmetic composition is not particularly limited and may be appropriately selected depending on the purpose. The cosmetic composition can be obtained by mixing the component (B) and the component (C), and, if necessary, the other component (D2), and purified water (blended as the remainder so that the entire cosmetic composition becomes 100% by mass). Specifically, the composition can be produced by dissolving the components (B) and (C) in purified water heated to 70°C to 80°C, and then cooling the water to 40°C or lower.

[0097] The cosmetic composition may be prepared using an apparatus. The apparatus is not particularly limited and may be appropriately selected depending on the purpose. For example, an agitator equipped with an agitating blade that exerts a shearing force and can mix the entire composition may be used. The stirring blade is not particularly limited and can be appropriately selected depending on the purpose. Examples of the stirring blade include a propeller, a turbine, and a disperser.

[0098] <Application> The use of the cosmetic article is not particularly limited and can be appropriately selected depending on the purpose. Examples of the use include skin cleansers such as body shampoo, body soap, face wash, hand soap, foam hand soap cleansing foam, and makeup remover. EXAMPLES

[0099] The present invention will be described in more detail below based on examples and comparative examples, but the present invention is not limited to these examples. The content of each component described in the examples and comparative examples is given in "mass %" and is all calculated as a pure content.

[0100] (Examples 1 to 25 and Comparative Examples 1 to 4) Cosmetic compositions having the compositions and contents shown in Examples 1 to 25 and Comparative Examples 1 to 4 were prepared according to the following method. Specifically, using other components such as purified water and edetic acid, a mixture was prepared in an amount that would amount to 60% by mass of the total amount of the final cosmetic composition. This mixture of other components was heated to 70°C to 80°C, after which components (B) and (C) were dissolved and cooled to 40°C or lower. If the pH did not reach the predetermined level, potassium hydroxide, another component, was added to adjust the pH to the predetermined level, and purified water was added until the total amount reached 100% by mass, thereby obtaining the cosmetic compositions of the Examples and Comparative Examples. The components were mixed using a propeller as a stirring blade and a Three-One Motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.). The pH was measured at 25° C. using a glass electrode color hydrogen ion concentration indicator HM-30R (TOA DKK, electrode type GST-5721).

[0101] Each cosmetic composition was filled into a bottle having the composition and content shown in Examples 1 to 25 and Comparative Examples 1 to 4, to produce the cosmetic articles of Examples 1 to 25 and Comparative Examples 1 to 4. The bottles were produced by blending a glass-based antibacterial agent and at least one colorant selected from oxides or sulfides in the blending amounts (parts by mass) shown in Tables 1 to 5 below, and by blow molding.

[0102] The obtained cosmetic articles of Examples 1 to 25 and Comparative Examples 1 to 4 were evaluated and judged for "effect of suppressing color tone change," "absence of yellowing of container," and "coloration of container." The results are shown in Tables 1 to 5 below.

[0103] <Evaluation of the effect of suppressing color change> Ten expert evaluators stored the cosmetic articles of Examples 1 to 25 and Comparative Examples 1 to 4 at 50°C for 6 weeks, then measured 45 mL into a 50 mL vial and visually observed the color tone. The color difference of the cosmetic composition before and after storage was evaluated based on the following evaluation criteria. The results were calculated by calculating the average score of the 10 evaluators, and judged based on the following criterion for judging the average score. A score of "△" or higher was considered to be acceptable. [Evaluation criteria for the effect of suppressing color change] 5 points: No difference in color tone 4 points: slight difference in color tone 3 points: There is a difference in color tone 2 points: There is a significant difference in color tone 1 point: There is a very noticeable difference in color tone [Criteria for evaluating the effect of suppressing color change] ◎: 4 points or more ○: 3 points or more and less than 4 points △: 2 points or more but less than 3 points ×: Less than 2 points

[0104] <Evaluation of container yellowing> Ten expert evaluators visually observed the yellowing of the containers of the cosmetic articles of Examples 1 to 25 and Comparative Examples 1 to 4, and evaluated them based on the following evaluation criteria. The results were calculated by calculating the average score of the 10 evaluators, and judged based on the following judgment criteria for the average score. A score of "△" or better was considered to be acceptable. [Evaluation criteria for lack of yellowing of containers] 5 points: No yellowing 4 points: Slight yellowing 3 points: Yellowing 2 points: Significant yellowing 1 point: Very noticeable yellowing [Criteria for determining whether a container is yellowed or not] ◎: 4 points or more ○: 3 points or more and less than 4 points △: 2 points or more but less than 3 points ×: Less than 2 points

[0105] <Evaluation of container coloration> Ten expert evaluators visually observed the color tone of the containers of the cosmetic articles of Examples 1 to 25 and Comparative Examples 1 to 4, and evaluated them based on the following evaluation criteria. The results were calculated by calculating the average score of the 10 evaluators, and judged based on the following judgment criteria for the average score. A score of "△" or better was considered to be acceptable. [Evaluation criteria for container coloration] 5 points: Very darkly colored 4 points: Darkly colored 3 points: Colored 2 points: slightly colored 1 point: Uncolored [Criteria for coloration of containers] ◎: 4 points or more ○: 3 points or more and less than 4 points △: 2 points or more but less than 3 points ×: Less than 2 points

[0106] [Table 1]

[0107] [Table 2]

[0108] [Table 3]

[0109] [Table 4]

[0110] [Table 5]

[0111] Details of each component used in Examples 1 to 25 and Comparative Examples 1 to 4 are shown in Table 6 below.

[0112] [Table 6] [Industrial Applicability]

[0113] The cosmetic article of the present invention has a good color for the container and is excellent in the effect of suppressing color change in the cosmetic composition filled therein, and therefore can be suitably used for, for example, skin cleansing agents such as body shampoo, body soap, facial cleansing foam, hand soap, foam hand soap cleansing foam, and makeup remover.< / ph>

Claims

1. A cosmetic article comprising a cosmetic composition filled in a container containing (A1) a glass-based antibacterial agent and (A2) at least one colorant selected from oxides and sulfides, a mass ratio [(A1) / (A2)] of the content of (A1) in the container to the content of (A2) in the container is 0.014 or more and 0.6 or less, The cosmetic composition comprises: (B) at least one selected from a polymer containing an acrylamide monomer and an amino alcohol; (C) at least one selected from polyhydric alcohols and monohydric alcohols having 1 to 3 carbon atoms.

2. The content of the (A1) is 0.5% by mass or more and 2% by mass or less based on the total mass of the container, The cosmetic article according to claim 1 , wherein the content of (A2) is 2.0% by mass or more and 5.0% by mass or less with respect to the total mass of the container.

3. The content of the (B) is 0.01% by mass or more and 1% by mass or less with respect to the total amount of the cosmetic composition, The cosmetic article according to claim 1 or 2, wherein the content of (C) is 1.0% by mass or more and 15% by mass or less with respect to the total amount of the cosmetic composition.

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