A method for improving the foaming properties and foam quality of a detergent composition, and a method for washing skin or hair.

Abstract

Provided is a method for improving the effervescence and foam quality of a cleaning agent composition, said method including mixing a monocyclohexyl glyceryl ether, an anionic surfactant, and water. Also provided is a method for cleaning skin or hair, said method including: acquiring a foamed cleaning liquid by dispensing a cleaning liquid that includes the monocyclohexyl glyceryl ether, the anionic surfactant, and the water from a foam dispensing container; and applying the foamed cleaning liquid to the skin or the hair.

Description

Technical Field

[0001] The present invention relates to a method for improving the foaming property and foam quality of a detergent composition, and a method for washing skin or hair.

Background Art

[0002] In detergent compositions, the amount and quality of the foam generated during foaming greatly affect the detergency and the feeling of use. Therefore, the development of detergent compositions with improved foaming properties and foam quality has been actively carried out. For example, Patent Document 1 describes a liquid detergent composition that is excellent in the amount of foam, the elasticity of the foam, the creaminess of the foam during discharge, the discharge property after storage at low temperature, and the moist feeling of the skin after towel drying. Patent Document 2 describes a skin cleanser that is used by discharging in a foam form, suppresses squeaking and tightness while leaving an appropriate degreasing feeling, and is also excellent in foam quality. Patent Document 3 describes a hair detergent composition that can discharge good foam, has high storage stability even at low temperatures, has good foam amount and foam quality during hair washing, and is excellent in smoothness during hair rinsing, and is filled in a foam discharge container for use.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] While the detergent compositions described in Patent Documents 1 to 3 can be expected to improve foaming ability and foam quality to a certain extent by specifying the types and amounts of ingredients used, the market demands further improvements in foaming ability and foam quality to enhance the cleaning performance and feel of detergent compositions. Therefore, the object of the present invention is to provide a method for improving the foaming ability and foam quality of detergent compositions. [Means for solving the problem]

[0005] The present inventors, after diligent research to solve the above problems, have found that by incorporating monocyclohexylglyceryl ether into a specific detergent composition, the foaming ability and foam quality of the detergent composition can be improved. That is, the present invention is a method for improving the foaming ability and foam quality of a detergent composition, comprising incorporating monocyclohexylglyceryl ether, an anionic surfactant, and water. The present invention is also a method for cleaning skin or hair, comprising dispensing a cleaning solution containing monocyclohexylglyceryl ether, anionic surfactant, and water using a foam dispensing container to obtain a foamed cleaning solution, and applying the foamed cleaning solution to the skin or hair. [Effects of the Invention]

[0006] The effect of the present invention is to provide a method for improving foaming properties and foam quality in a detergent composition. [Modes for carrying out the invention]

[0007] The present invention provides a method for improving the foaming ability and foam quality of a detergent composition, characterized by comprising the addition of monocyclohexylglyceryl ether, an anionic surfactant, and water. In other words, the detergent composition used in the present invention contains monocyclohexylglyceryl ether, anionic surfactant, and water. This method improves the foaming ability and foam quality of the detergent composition when it is used. Here, foam quality in the present invention refers to the foam quality of the foamed state during washing.

[0008] The content of monocyclohexylglyceryl ether in the detergent composition in this method is not particularly limited, but from the viewpoint of the effects of the present invention, it is preferably 0.01 to 10.0% by mass, more preferably 0.05 to 7.0% by mass, and even more preferably 0.10 to 5.0% by mass, based on the total amount of the detergent composition. Compounds similar to monocyclohexylglyceryl ether include, for example, glyceryl ethers and alkanediols with different hydrocarbon group structures, but when compounds other than monocyclohexylglyceryl ether are incorporated, although a certain degree of improvement in foaming ability and foam quality may be observed in the detergent composition as shown in the examples described later, the remarkable foaming ability and foam quality improvement effect of the present invention cannot be obtained.

[0009] The anionic surfactant used in the detergent composition of the present invention is not particularly limited, and anionic surfactants commonly used in detergent compositions can be used, for example, higher fatty acid salts, higher alcohol sulfate salts, sulfurized olefin salts, higher alkyl sulfonates, α-olefin sulfonates, sulfated fatty acid salts, sulfonated fatty acid salts, phosphate salts, sulfate salts of fatty acid esters, glyceride sulfate salts, sulfonates of fatty acid esters, α-sulfo fatty acid methyl ester salts, polyoxyalkylene alkyl ether sulfates, polyoxyalkylene alkylphenyl ether sulfates, polyoxyalkylene alkyl ether carboxylates, polyoxyalkylene alkyl ether phosphates, acylated phenyl ethers Examples include one or more of the following: butylates, sulfate salts of fatty acid alkanolamides or their alkylene oxide adducts, sulfosuccinates, alkylbenzene sulfonates, alkylnaphthalene sulfonates, alkylbenzimidazole sulfonates, polyoxyalkylene sulfosuccinates, salts of N-acyl-N-methyltaurine, N-acyl glutamic acid or its salts, acyloxyethanesulfonates, alkoxyethanesulfonates, N-acyl-β-alanine or its salts, N-acyl-N-carboxyethyltaurine or its salts, N-acyl-N-carboxymethylglycine or its salts, acyl lactates, N-acyl sarcosine salts, and alkyl or alkenylaminocarboxymethyl sulfates. In the present invention, from the viewpoint of improving foaming ability and foam quality, it is preferable to include at least one anionic surfactant selected from the group consisting of polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkylphenyl ether sulfate, polyoxyalkylene alkyl ether carboxylate, and polyoxyalkylene alkyl ether phosphate, and more preferably to include at least one polyoxyalkylene alkyl ether sulfate.In this case, the structure of the polyoxyalkylene alkyl ether sulfate is not particularly limited, and for example, a sulfated polyoxyalkylene ether having a linear or branched alkyl group having 8 to 20 carbon atoms and to which 1 to 20 moles of an alkylene oxide having 2 to 4 carbon atoms can be used. From the viewpoint of the effects of the present invention, it is particularly preferable that the anionic surfactant contains a sulfated polyoxyalkylene ether having a linear or branched alkyl group having 10 to 16 carbon atoms and to which an alkylene oxide having 2 to 3 carbon atoms is added (for example, polyoxyethylene (1 to 4) lauryl ether sulfate sodium).

[0010] The content of the anionic surfactant in the detergent composition used in the present invention is not particularly limited, but from the viewpoint of the effects of the present invention, the content of the anionic surfactant in the detergent composition is preferably 0.1 to 20.0% by mass, more preferably 1.0 to 15.0% by mass, even more preferably 2.0 to 12.0% by mass, and particularly preferably 3.0 to 10.0% by mass, based on the total amount of the detergent composition.

[0011] The ratio of the content of anionic surfactant to the content of monocyclohexylglyceryl ether in the detergent composition is not particularly limited, but from the viewpoint of improving foaming ability and foam quality, the content of monocyclohexylglyceryl ether is preferably 1 to 1000 parts by mass, more preferably 1 to 500 parts by mass, even more preferably 2 to 300 parts by mass, and particularly preferably 5 to 100 parts by mass, per 100 parts by mass of the content of anionic surfactant.

[0012] The water contained in the detergent composition used in the present invention is not particularly limited, and tap water, pure water, RO water, deionized water, distilled water, etc., can be used. Furthermore, the water content in the detergent composition used in the present invention is not particularly limited, but from the viewpoint of the effects of the present invention, the water content in the detergent composition is preferably 20 to 99% by mass, more preferably 40 to 95% by mass, and even more preferably 60 to 90% by mass, based on the total amount of the detergent composition.

[0013] The detergent composition used in the present invention may contain, in addition to the monocyclohexylglyceryl ether, anionic surfactant, and water described above, other components commonly used in detergent compositions. Examples of such other components include cationic surfactants, nonionic surfactants, amphoteric surfactants, solvents (excluding water), oily components, thickeners, antibacterial agents, fragrances, humectants, chelating agents, physiologically active components, antioxidants, resin powders, pigments, dyes, and the like.

[0014] The cationic surfactants that can be contained in the detergent composition used in the present invention are not particularly limited as long as they are cationic surfactants commonly used in detergent compositions. Examples include alkyl(alkenyl)trimethylammonium salts, dialkyl(alkenyl)dimethylammonium salts, alkyl(alkenyl)quaternary ammonium salts, mono or dialkyl(alkenyl)quaternary ammonium salts containing an ether group, ester group, or amide group, alkyl(alkenyl)pyridinium salts, alkyl(alkenyl)dimethylbenzylammonium salts, alkyl(alkenyl)isoquinolinium salts, dialkyl(alkenyl)morphonium salts, polyoxyethylene alkyl(alkenyl)amines, alkyl(alkenyl)amine salts, polyamine fatty acid derivatives, amyl alcohol fatty acid derivatives, benzalkonium chloride, benzethonium chloride, cationized polymers (cationized cellulose, cationized guar gum, cationized tara gum, cationized locust bean gum, cationized xanthan gum, etc.), and one or more of these can be contained. From the viewpoint of the effects of the present invention, it is preferable to use a detergent composition containing at least one selected from the group consisting of guar hydroxypropyltrimonium chloride, locust bean hydroxypropyltrimonium chloride, polyquaternium-6, and polyquaternium-10 as the cationic surfactant. When the detergent composition used in the present invention contains a cationic surfactant, the content of the cationic surfactant is not particularly limited, but for example, the content of the cationic surfactant in the detergent composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, and even more preferably 0.1 to 3% by mass, based on the total amount of the detergent composition.

[0015] When a detergent composition contains a cationic surfactant, the ratio of the content of the cationic surfactant to the content of monocyclohexylglyceryl ether in the detergent composition is not particularly limited. However, from the viewpoint of improving foam quality and foaming power, the content of monocyclohexylglyceryl ether is preferably 1 to 1,000 parts by mass, more preferably 10 to 500 parts by mass, and even more preferably 20 to 300 parts by mass, per 100 parts by mass of the cationic surfactant.

[0016] The nonionic surfactants that can be contained in the detergent composition used in the present invention are not particularly limited as long as they are nonionic surfactants commonly used in detergent compositions. Examples include sorbitan fatty acid esters, glycerin polyglycerin fatty acids, propylene glycol fatty acid esters, hydrogenated castor oil derivatives, glycerin alkyl ethers, POE-sorbitan fatty acid esters, POE-sorbitan fatty acid esters, POE-glycerin fatty acid esters, POE-fatty acid esters, POE-alkyl ethers, POE·POP-alkyl ethers, tetraPOE·tetraPOP-ethylenediamine condensates, POE-castor oil hydrogenated castor oil derivatives, POE-beeswax / lanolin derivatives, alkanolamides, POE-propylene glycol fatty acid esters, POE-alkylamines, POE-fatty acid amides, fatty acid diethylene glycols, sucrose fatty acid esters, alkylethoxydimethylamine oxides, and others. One or more of these can be contained. From the viewpoint of the effects of the present invention, it is preferable to use a detergent composition containing at least one nonionic surfactant selected from the group consisting of coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, fatty acid isopropanolamide, and cocamide methyl monoethanolamide (cocamide methyl MEA). The content of the nonionic surfactant in the detergent composition used in the present invention is not particularly limited, but for example, the content of the nonionic surfactant in the detergent composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, and even more preferably 0.1 to 3% by mass, based on the total amount of the detergent composition.

[0017] When a detergent composition contains a nonionic surfactant, the ratio of the content of the nonionic surfactant to the content of monocyclohexylglyceryl ether in the detergent composition is not particularly limited. However, from the viewpoint of improving foaming ability and foam quality, the content of monocyclohexylglyceryl ether is preferably 1 to 1,000 parts by mass, more preferably 10 to 500 parts by mass, and even more preferably 20 to 300 parts by mass, per 100 parts by mass of the nonionic surfactant.

[0018] The amphoteric surfactant that can be contained in the detergent composition used in the present invention is not particularly limited as long as it is an amphoteric surfactant commonly used in detergent compositions. Examples include imidazoline betaine, alkyldimethylaminoacetic acid betaine, fatty acid amidopropyl betaine, sulfobetaine, alkyldimethylamine oxide, etc., and one or more of these can be contained. From the viewpoint of the effects of the present invention, it is preferable to use a detergent composition that contains at least one amphoteric surfactant selected from the group consisting of lauramidopropyl betaine, lauryldimethylaminoacetic acid betaine, and lauryl hydroxysulfobetaine. The content of the amphoteric surfactant in the detergent composition used in the present invention is not particularly limited, but for example, the content of the amphoteric surfactant in the detergent composition is preferably 0.01 to 15% by mass, more preferably 0.05 to 12% by mass, and even more preferably 0.1 to 10% by mass, based on the total amount of the detergent composition.

[0019] When a detergent composition contains an amphoteric surfactant, the ratio of the content of the amphoteric surfactant to the content of monocyclohexyl glyceryl ether in the detergent composition is not particularly limited. However, from the viewpoint of improving foam quality and foaming power, the content of monocyclohexyl glyceryl ether is preferably 1 to 500 parts by mass, more preferably 2 to 300 parts by mass, and even more preferably 5 to 100 parts by mass, per 100 parts by mass of the amphoteric surfactant.

[0020] The solvent that can be contained in the detergent composition used in the present invention is not particularly limited as long as it is a solvent commonly used in detergents, excluding water. Examples include ethanol, propanol, isopropanol, etc., and one or more of these may be contained. The solvent content when the detergent composition used in the present invention contains a solvent is not particularly limited, but for example, the solvent content in the detergent composition is preferably 0.01 to 30% by mass, and more preferably 0.1 to 20% by mass, based on the total amount of the detergent composition.

[0021] The oily components that can be contained in the detergent composition used in the present invention are not particularly limited as long as they are oily components that are normally used in detergent compositions, but for example, oils and fats (almond oil, avocado oil, shea butter, sunflower seed oil, macadamia nut oil, lanolin, reduced lanolin, mink oil, cocoa butter, coconut oil, palm oil, palm kernel oil, hydrogenated coconut oil, hydrogenated palm oil, hydrogenated palm kernel oil, camellia oil, sesame oil, castor oil, olive oil, soybean oil, beef tallow, glyceryl tricaprate, glyceryl tricaprylate, glyceryl trioctanoate, glyceryl triisostearate, Glyceryl rivehenate, glyceryl trihydroxystearate, etc.), hydrocarbon oils (isododecane, isohexadecane, liquid paraffin, petrolatum, squalane, squalene, microcrystalline wax, mineral oil, hydrogenated polyisobutene, hydrogenated polydecene, polydecene, etc.), ester oils (cetyl caprate, hexyl laurate, myristyl myristate, isostearyl palmitate, isopropyl isostearate, decyl oleate, isopropyl myristate, cetyl octanoate, cetyl ethylhexanoate, octyl isononanoate) (L, hexyldecyl dimethyloctanoate, diethyl phthalate, diethyl isophthalate, diisostearyl adipate, diisopropyl sebacate, glycol distearate, neopentyl glycol diethylhexanoate, octyl oxystearate, etc.), higher alcohols (octyl alcohol, decyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, isocetyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, hexadecyl alcohol, octyldodecanol, decyl tetraphosphate) Examples include tradecanol, tetradecyloctadecanol, dodecylhexadecanol, hexyldecanol, behenyl alcohol, silicone oil (dimethylpolysiloxane, phenyl trimethicone, diphenyl dimethicone, diphenylsiloxyphenyl trimethicone, trimethylpentaphenyltrisiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, methyl trimethicone, dimethylpolysiloxane, decamethyltetrasiloxane, ethyltrisiloxane, etc.),These can contain one or more of these. When the cleaning composition used in the present invention contains an oily component, the content of the oily component is not particularly limited. For example, the content of the oily component in the cleaning composition is preferably 0.01 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total amount of the cleaning composition.

[0022] The thickener that the cleaning composition used in the present invention can contain is not particularly limited as long as it is a thickener commonly used in cleaning agents. For example, calcium alginate, pullulan, agar, gelatin, tamarind seed polysaccharide, xanthan gum, carrageenan, high-methoxyl pectin, low-methoxyl pectin, guar gum, gum arabic, crystalline cellulose, arabinogalactan, karaya gum, tragacanth gum, alginic acid, albumin, casein, curdlan, β-glucan, gellan gum, dextran, dimethyldiallylammonium chloride polymer (polyquaternium-6), dimethyldiallylammonium chloride-acrylamide copolymer, acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer, cellulose or its derivatives, keratin, and collagen or their derivatives, etc. can be mentioned, and one or more of these can be contained. When the cleaning composition used in the present invention contains a thickener, the content of the thickener is not particularly limited. For example, the content of the thickener in the cleaning composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, still more preferably 0.1 to 3% by mass, based on the total amount of the cleaning composition.

[0023] The antibacterial agents that can be contained in the detergent composition used in the present invention are not particularly limited as long as they are antibacterial agents commonly used in detergents. Examples include methylparaben, ethylparaben, propylparaben, butylparaben, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, salicylic acid, sodium benzoate, methylchloroisothiazolinone, methylisothiazolinone, imidazolinium urea, benzalkonium chloride, benzethonium chloride, sorbic acid, photosensitizer, etc., and one or more of these can be contained. The antibacterial content of the detergent composition used in the present invention is not particularly limited, but for example, the antibacterial content in the detergent composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, and even more preferably 0.1 to 3% by mass, based on the total amount of the detergent composition.

[0024] The fragrance that can be contained in the detergent composition used in the present invention is not particularly limited as long as it is a fragrance commonly used in detergents. For example, natural fragrances (wintergreen oil, oakmoss resin, olibanum resinoid, orange oil, cassia flower oil, cardamom oil, carrot seed oil, camphor oil, cumin oil, grapefruit oil, clove oil, coriander oil, citronella oil, jasmine oil, ginger oil, cinnamon oil, spearmint oil, geranium oil, thyme oil, pine oil, basil oil, parsley leaf oil, perilla oil, vanilla absolute, hinoki oil, cypress oil, pepper oil, peppermint oil, bergamot oil, mandarin oil, orange oil, mimosa oil, eucalyptus oil, yuzu oil, lime oil, lavender absolute, lemon oil, rose oil, rosemary oil, laurel oil, laurel leaf oil, etc.), synthetic fragrances (ambredolide, anisaldehyde, acetophenone, acetyl cedrene, adoxal, ambroxan, amyl cinnamic aldehyde, isoamyl salicylate, indole, ionone, oxyphrenilone, galaxolide, caryophyllene, santalex, cinnamic alcohol, dimethyl benzyl carbinol, jasmo-firan, terpineol, neryl acetate, phenylethyl acetate, pentalid, verdox, benzyl acetate, benzyl alcohol, benzyl salicylate, bergamyl acetate, benzaldehyde, benzyl formate, menthol, methyl naphthyl ketone, methyl phenyl acetate, raspberry ketone, limonene, rubafuran, rose phenone, rose oxide, vanillin, etc.), etc. can be mentioned, and one or more of these can be contained. When the detergent composition used in the present invention contains a fragrance, the content of the fragrance is not particularly limited. For example, it is preferable that the content of the fragrance in the detergent composition is 0.01 to 3% by mass, and more preferably 0.02 to 1% by mass, based on the total amount of the detergent composition.

[0025] The humectants that can be contained in the detergent composition used in the present invention are not particularly limited as long as they are humectants commonly used in detergents. Examples include biopolymers such as diethylene glycol monoethyl ether, deoxyribonucleic acid, mucopolysaccharides, sodium hyaluronate, sodium chondroitin sulfate, collagen, elastin, chitin, chitosan, hydrolyzed eggshell membrane, amino acids, sodium lactate, urea, sodium pyrrolidone carboxylate, and whey, and one or more of these can be contained. The content of the humectant in the detergent composition used in the present invention is not particularly limited, but for example, the content of the humectant in the detergent composition is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, and even more preferably 0.1 to 3% by mass, based on the total amount of the detergent composition.

[0026] The chelating agents that can be contained in the detergent composition used in the present invention are not particularly limited as long as they are chelating agents commonly used in detergents, but examples include EDTA, EDTA disodium, EDTA trisodium, EDTA tetrasodium, pentetate, phytate, etidronate, oxalate, polyphosphate, metaphosphate, citrate, alanine, dihydroxyethylglycine, gluconic acid, ascorbic acid, succinic acid, tartaric acid, lactic acid, glycolic acid, succinic acid, sodium acetate, malic acid, tartaric acid, fumaric acid, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-hydroxymethyl-1,3-propanediol, arginine, sodium hydroxide, potassium hydroxide, ammonia water, guanidine carbonate, ammonium carbonate, etc., and one or more of these can be contained. The amount of chelating agent in the detergent composition used in the present invention is not particularly limited, but for example, the amount of chelating agent in the detergent composition is preferably 0.01 to 5% by mass, and more preferably 0.02 to 3% by mass, based on the total amount of the detergent composition.

[0027] The method for producing the detergent composition used in the present invention is not particularly limited, and it can be prepared using general detergent composition methods, such as stirring and mixing the constituent components.

[0028] In the present invention, the method for foaming the detergent composition is not particularly limited. Examples include a method of dispensing the detergent composition after sealing it in an aerosol container, a method of dispensing a liquid or gel-type detergent composition in a foamy form using an aerosol or non-aerosol foam dispensing container, and a method of dispensing the detergent composition in liquid or gel form from a container and then foaming it with fingers or the like. These methods can be appropriately selected depending on the purpose and form of use.

[0029] In the present invention, the specific uses of the cleansing agent composition are not particularly limited, and examples include facial cleansers, makeup removers, body soaps, hand soaps, shampoos, shaving products, massage products, etc. From the viewpoint of the effects of the present invention, it is preferable that the cleansing agent composition is a skin cleansing agent composition or a hair cleansing agent composition. Furthermore, the dosage form of the cleansing agent composition used in the present invention is not particularly limited as long as it is a dosage form that can be used by foaming at the time of use, and examples include aqueous solutions, gels, aerosols, water-oil emulsions (W / O emulsions, O / W emulsions, W / O / W emulsions, O / W / O emulsions), etc.

[0030] The method of using the above-mentioned detergent composition is not particularly limited as long as it is used by creating foam during washing, and can be appropriately adjusted according to the purpose or manner of use. The detergent composition may also be diluted with water or the like during washing, for example, by diluting it 2 to 1000 times with water. When diluting the detergent composition, it is preferable to dilute it so that the content of monocyclohexylglyceryl ether in the diluted solution is 0.001 to 1.0% by mass relative to the total amount of the diluted solution, from the viewpoint of foaming power, foam quality, and washing performance during washing.

[0031] Furthermore, the present invention relates to a method for washing skin or hair, comprising applying a washing solution containing monocyclohexylglyceryl ether, anionic surfactant, and water to the skin or hair in a foamed state. In this case, the washing solution may be prepared by diluting the above-mentioned washing agent composition with water, or it may be prepared separately as a washing solution. With the present invention, the amount of foam generated when the washing solution is foamed (foaming ability) and the quality of the foam can be improved when washing skin or hair, so improvements in washing performance and usability can be expected. At this time, the specific method of washing in a foamed state is not particularly limited, and examples include a method of dispensing the washing solution after sealing it in an aerosol container, a method of dispensing a liquid or gel-type washing solution in a foamy state using an aerosol-type or non-aerosol-type foam dispensing container, and a method of dispensing the washing solution in liquid or gel form from a container and then foaming it with fingers or the like. From the viewpoint of the effects of the present invention, it is preferable that the content of monocyclohexyl glyceryl ether in the cleaning solution when the liquid or gel-like cleaning solution is dispensed as foam using an aerosol or non-aerosol foam dispensing container is 0.001 to 1.0% by mass. Furthermore, from the viewpoint of the effects of the present invention, it is preferable that the content of monocyclohexyl glyceryl ether in the cleaning solution when the cleaning solution is dispensed from a container in liquid or gel form and then foamed using fingers or the like is 0.001 to 1.0% by mass relative to the total amount of the cleaning solution. [Examples]

[0032] The present invention will be described in detail below with reference to examples. In the following examples, percentages are based on mass unless otherwise specified.

[0033] <Preparation of detergent composition> [Example 1] Detergent composition 1 was prepared by mixing each component according to the proportions (mass%) shown in Table 1. [Comparative Examples 1-4] Detergent compositions 2, 3, and 4 were prepared with the same composition as Example 1, except that monocyclohexylglyceryl ether in detergent composition 1 was replaced with phenoxyethanol (Comparative Example 1), 1,2-octanediol (Comparative Example 2), and monoethylhexylglyceryl ether (Comparative Example 3). In addition, detergent composition 5 was prepared as Comparative Example 4, with the same composition as Example 1, except that it did not contain monocyclohexylglyceryl ether.

[0034] [Table 1]

[0035] <Evaluation of foaming properties> A cleaning solution was prepared by adding 13.4 g of distilled water to 6.6 g of each prepared cleaning agent composition to dilute it. Next, each cleaning solution was transferred to the container of a household mill mixer (Iwatani Corporation, IFM-620DG), and the solution was aerated for 5 seconds at a rotation speed of 20,000 revolutions per minute to create foam. For each cleaning solution, the volume of foam generated was visually observed after standing for 60 seconds, and the amount of foam generated was measured based on the capacity of the mill mixer container. This measurement of the amount of foam generated was repeated three times, and the average value was calculated. The calculation results are shown in Table 2.

[0036] <Foam Quality Evaluation> A cleaning solution was prepared by adding 26.7 g of distilled water to 13.3 g of each prepared cleaning agent composition. Next, each cleaning solution was transferred to a container of a household mill mixer (Iwatani Corporation, IFM-620DG), and the solution was aerated for 10 seconds at a rotation speed of 20,000 revolutions per minute to generate foam. The entire amount of foam generated from each cleaning solution was immediately transferred to a 50 ml beaker, and a 1-yen coin was gently placed on top of the foam. The time from when the coin was placed on top of the foam until it fell to the bottom of the beaker was measured. A longer time (holding time) indicates that the foam can be maintained for a longer period of time and can be said to be of superior foam quality. The holding time measurement using this method was repeated three times, and the average value was calculated. The calculation results are shown in Table 2.

[0037] [Table 2]

[0038] In Example 1, which contained monocyclohexylglyceryl ether, it was confirmed that the foaming ability and foam quality were improved compared to Comparative Example 4, which did not contain monocyclohexylglyceryl ether. These effects were clearly superior to those of Comparative Examples 1-3, which contained phenoxyethanol, 1,2-octanediol, and monoethylhexylglyceryl ether instead of monocyclohexylglyceryl ether, confirming that the inclusion of monocyclohexylglyceryl ether can significantly improve the foaming ability and foam quality of the detergent composition.

Claims

1. A method for improving the foaming ability and foam quality of a detergent composition, comprising preparing a detergent composition by blending monocyclohexylglyceryl ether, an anionic surfactant, and water, wherein the content of the anionic surfactant in the detergent composition is 3.0 to 15.0% by mass of the total amount of the detergent composition, and the content of the monocyclohexylglyceryl ether is 5 to 300 parts by mass per 100 parts by mass of the anionic surfactant.

2. The method according to claim 1, wherein the content of the monocyclohexyl glyceryl ether in the detergent composition is 0.01 to 10.0% by mass relative to the total amount of the detergent composition.

3. The method according to claim 1 or 2, wherein the anionic surfactant comprises at least one anionic surfactant selected from the group consisting of polyoxyalkylene alkyl ether sulfate, polyoxyalkylene alkylphenyl ether sulfate, polyoxyalkylene alkyl ether carboxylate, and polyoxyalkylene alkyl ether phosphate.

4. The method according to any one of claims 1 to 3, wherein the cleansing agent composition is a cleansing agent composition for skin or a cleansing agent composition for hair.

5. The method according to any one of claims 1 to 4, wherein the detergent composition further comprises at least one selected from the group consisting of cationic surfactants, nonionic surfactants, and amphoteric surfactants.

6. A method for washing skin or hair, comprising: diluting a detergent composition containing monocyclohexylglyceryl ether, an anionic surfactant, and water with water to obtain a detergent solution, discharging the solution from a foaming dispenser to create a foamed detergent solution; and applying the foamed detergent solution to skin or hair, wherein the content of the anionic surfactant in the detergent composition is 3.0 to 15.0% by mass of the total amount of the detergent composition, and the content of the monocyclohexylglyceryl ether is 5 to 300 parts by mass per 100 parts by mass of the anionic surfactant.

7. The method for washing skin or hair according to claim 6, wherein the amount of monocyclohexyl glyceryl ether in the washing solution is 0.001 to 1.0% by mass relative to the total amount of the washing solution.

8. The method according to claim 6 or 7, wherein the detergent composition further comprises at least one selected from the group consisting of cationic surfactants, nonionic surfactants, and amphoteric surfactants.

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