Surfactant compositions and cleaners

Abstract

The present application relates to a surfactant composition containing an alkyl hydroxy ether acetate (A) represented by the following general formula (1) and a compound (I) detected between retention time 10 minutes and 17 minutes in a gas chromatography using petroleum ether in conformity with JIS K8593, the ratio of the peak area of the compound (I) to the peak area of the petroleum ether determined by the gas chromatography being 0.02% to 50%.R 1 -CH(OH)-CH2-OCH2COOM 1 (1) [In the general formula (1), R 1 represents an alkyl group having 8 to 12 carbon atoms, M 1 represents a hydrogen atom, a sodium atom, a potassium atom or triethanolammonium.]

Description

Technical Field

[0001] This invention relates to surfactant compositions and cleaning agents. Background Technology

[0002] Anionic surfactants and other surfactants are used in cleansing agents for human skin and hair. Patent Document 1 discloses a cleansing agent comprising a surfactant composition containing sodium dodecyl hydroxy ether acetate, which exhibits excellent cleansing power against sebum and excellent moisturizing properties after cleansing. Existing technical documents Patent documents

[0003] Patent Document 1: International Publication No. 2024 / 009754 Summary of the Invention The technical problem that the invention aims to solve

[0004] However, the surfactant composition containing sodium dodecyl hydroxy ether acetate, etc., described in Patent Document 1 has room for further improvement in foam fineness. Furthermore, the cleaning agent described in Patent Document 1 has room for further improvement in foam durability and further suppression of irritating odors.

[0005] The purpose of this invention is to provide a surfactant composition with excellent foam fineness, and a cleaning agent containing the above surfactant composition with excellent foam durability and suppressed irritating odor. Technical means to solve technical problems

[0006] The inventors conducted in-depth research to achieve the above objectives, and as a result, completed this invention. That is, the present invention is a surfactant composition and a cleaning agent containing the above surfactant composition, wherein the surfactant composition contains an alkyl hydroxy ether acetic acid (salt) (A) represented by the following general formula (1) and a compound (I) detected by gas chromatography using petroleum ether conforming to JIS K8593 with a retention time between 10 minutes and 17 minutes, wherein the peak area of ​​the compound (I) determined by the gas chromatography is 0.02% to 50% relative to the peak area of ​​the petroleum ether. R 1 -CH(OH)-CH2-OCH2COOM 1 (1) In general formula (1), R 1 M represents an alkyl group with 8 to 12 carbon atoms. 1 This represents a hydrogen atom, a sodium atom, a potassium atom, or triethanolamine. Beneficial effects

[0007] The surfactant composition of the present invention exhibits excellent foam fineness. Furthermore, due to the presence of the surfactant composition of the present invention, the cleaning agent of the present invention is a cleaning agent with excellent foam persistence and suppressed irritating odor. Detailed Implementation

[0008] The present invention will now be described in detail.

[0009] <Alkyl Hydroxyether Acetic Acid (Salt) (A)> The surfactant composition of the present invention contains an alkyl hydroxy ether acetic acid (salt) (A) of general formula (1) as an alkyl hydroxy ether acetic acid (salt) (A). R 1 -CH(OH)-CH2-OCH2COOM 1 (1) In general formula (1), R 1 M represents an alkyl group with 8 to 12 carbon atoms. 1 This represents a hydrogen atom, a sodium atom, a potassium atom, or triethanolamine.

[0010] Additionally, in this specification, alkyl hydroxy ether acetic acid (salt) (A) means alkyl hydroxy ether acetic acid (A) and / or alkyl hydroxy ether acetic acid salt (A). In this specification, alkyl hydroxy ether acetic acid (salt) (A) may also be referred to as alkyl hydroxy ether acetic acid or its salt (A).

[0011] In general formula (1), R 1 It refers to alkyl groups with 8 to 12 carbon atoms. Examples of alkyl groups with 8 to 12 carbon atoms include n-octyl, isooctyl, 2-ethylhexyl, n-nonyl, isonyl, n-decyl, isodel, undecyl, n-dodecyl, and isododecyl. From the perspective of foaming properties and the ability to cleanse sebum, R 1 Preferably, it is an alkyl group having 8 to 10 carbon atoms, more preferably an alkyl group having 10 carbon atoms, and particularly preferably n-decyl. R 1 Preferably, it is a straight-chain alkyl group with 8 to 12 carbon atoms.

[0012] In general formula (1), M 1 It can be a hydrogen atom, a sodium atom, a potassium atom, or triethanolamine. M 1 From the viewpoint of foaming properties and the ability to cleanse sebum, sodium atoms or triethanolamine are preferred, and sodium atoms are even more preferred.

[0013] Specific examples of alkyl hydroxy ether acetic acid (A) represented by general formula (1) include decyl hydroxy ether acetic acid (2-hydroxydecyl acetic acid), isodecyl hydroxy ether acetic acid (2-hydroxyisodecyl acetic acid), ethyl octyl hydroxy ether acetic acid (2-hydroxyethyl octyl acetic acid), undecyl hydroxy ether acetic acid (2-hydroxyundecyl acetic acid), isoundecyl hydroxy ether acetic acid (2-hydroxyisoundecyl acetic acid), dodecyl hydroxy ether acetic acid (2-hydroxydodecyl acetic acid), isododecyl hydroxy ether acetic acid (2-hydroxyisododecyl acetic acid), tridecyl hydroxy ether acetic acid (2-hydroxytridecyl acetic acid), tetradecyl hydroxy ether acetic acid (2-hydroxytetradecyl acetic acid), and isotetradecyl hydroxy ether acetic acid (2-hydroxyisotetradecyl acetic acid).

[0014] Specific examples of alkyl hydroxy ether acetates (A) represented by general formula (1) include sodium decyl hydroxy ether acetate, sodium isodeyl hydroxy ether acetate, sodium ethyl octyl hydroxy ether acetate, sodium undecyl hydroxy ether acetate, sodium isoundecyl hydroxy ether acetate, sodium dodecyl hydroxy ether acetate, sodium isododecyl hydroxy ether acetate, sodium tridecyl hydroxy ether acetate, sodium tetradecyl hydroxy ether acetate, sodium isotetradecyl hydroxy ether acetate, potassium decyl hydroxy ether acetate, potassium isodeyl hydroxy ether acetate, potassium ethyl octyl hydroxy ether acetate, potassium undecyl hydroxy ether acetate, potassium isoundecyl hydroxy ether acetate, potassium dodecyl hydroxy ether acetate, and sodium dodecyl hydroxy ether acetate. Potassium hydroxy ether acetate, potassium isododecyl hydroxy ether acetate, potassium tridecyl hydroxy ether acetate, potassium tetradecyl hydroxy ether acetate, potassium isotetradecyl hydroxy ether acetate, decyl hydroxy ether acetate triethanolamine, isodecyl hydroxy ether acetate triethanolamine, ethyl octyl hydroxy ether acetate triethanolamine, undecyl hydroxy ether acetate triethanolamine, isoundecyl hydroxy ether acetate triethanolamine, dodecyl hydroxy ether acetate triethanolamine, isododecyl hydroxy ether acetate triethanolamine, tridecyl hydroxy ether acetate triethanolamine, tetradecyl hydroxy ether acetate triethanolamine, and isotetradecyl hydroxy ether acetate triethanolamine, etc. In the surfactant composition of the present invention, one type of alkyl hydroxy ether acetic acid (salt) (A) may be used alone or in combination with two or more types.

[0015] From the viewpoint of cleansing power against sebum, the alkyl hydroxy ether acetate (salt) shown in general formula (1) is preferably an alkyl hydroxy ether acetate salt shown in general formula (1), further preferably sodium decyl hydroxy ether acetate, sodium dodecyl hydroxy ether acetate, sodium tetradecyl hydroxy ether acetate, triethanolamine decyl hydroxy ether acetate, triethanolamine dodecyl hydroxy ether acetate, and triethanolamine tetradecyl hydroxy ether acetate, particularly preferably sodium decyl hydroxy ether acetate and sodium dodecyl hydroxy ether acetate, and most preferably sodium dodecyl hydroxy ether acetate.

[0016] The alkyl hydroxy ether acetic acid (salt) (A) represented by the general formula (1) can be obtained by a known method described in JP-A-2017-197732 or the like. Specifically, 1.04 moles of sodium monochloroacetate is added to 1 mole of a 1,2-diol having 10 to 14 carbon atoms, and preferably at 30°C to 80°C, more preferably at 50°C to 70°C, to obtain an aqueous solution containing crude sodium alkyl hydroxy ether acetate through an SN2 reaction, and then hydrochloric acid is added to obtain an aqueous surfactant solution containing alkyl hydroxy ether acetic acid (A).

[0017] Furthermore, an aqueous surfactant solution containing alkyl hydroxy ether acetate (A) can be obtained by neutralizing the obtained aqueous surfactant solution containing alkyl hydroxy ether acetic acid (A) with a basic compound such as sodium hydroxide, potassium hydroxide, and triethanolamine.

[0018] Regarding the aqueous surfactant solution containing alkyl hydroxy ether acetic acid (salt) (A), it can be directly used in the production of the surfactant composition of the present invention, or the powder containing alkyl hydroxy ether acetic acid (salt) (A) obtained by desolventizing the aqueous surfactant solution by a known method such as an evaporator can be used in the production of the surfactant composition of the present invention, or the aqueous surfactant solution containing alkyl hydroxy ether acetic acid (salt) (A) and the powder containing alkyl hydroxy ether acetic acid (salt) (A) can be mixed and used in the production of the surfactant composition of the present invention.

[0019] The molecular structure of the alkyl hydroxy ether acetic acid (salt) (A) (including the type of cation constituting the alkyl hydroxy ether acetate (A)) can be determined by analysis using a liquid chromatography / time-of-flight mass spectrometer (LC-TOF-MS) according to the <LC-TOF-MS measurement conditions> described below.

[0020] <LC-TOF-MS measurement conditions> · Instrument: Xevo G2-XS (manufactured by Waters) · Analytical column: Scherzo SM-C18 (3μm, 2mm×100mm) (manufactured by Intakt) · Column temperature: 40°C · Mobile phase A: Methanol · Mobile phase B: 10 mM ammonium acetate aqueous solution / methanol (80 / 20) · Flow rate: 0.3 mL / min · Sample injection volume: 0.8 μL · Gradient conditions: 0 minutes to 1 minute: A 60% → 4 minutes to 5 minutes: A 80% → 9 minutes to 16 minutes: A 98% → 16.1 minutes to 21 minutes: A 60% • Detector: MS • Ion source: ESI (±) • Source temperature: 140℃ • Desolventization temperature: 600℃ • Desolventizing gas flow rate: 1000L / h • Sample adjustment conditions: Dilute with methanol 1000 times

[0021] In this specification, the content of alkyl hydroxy ether acetic acid (salt) (A) is the value determined by high performance liquid chromatography (hereinafter, sometimes omitting HPLC) according to the <HPLC determination conditions for alkyl hydroxy ether acetic acid (salt) (A)> described below.

[0022] <HPLC determination conditions for alkyl hydroxy ether acetic acid (salt) (A)> Apparatus: Liquid Chromatograph (manufactured by Shimadzu Corporation) Detector: Differential refractive index detector Column: CAPCELL PAK C18 SG 120S5 (C18 SG 120S5) (inner diameter 4.6nm, length 25cm, manufactured by Osaka Soda Co., Ltd.) Column temperature: 40℃ Eluent: A mixture of 0.02 mol / L phosphoric acid, 0.01 mol / L sodium dihydrogen phosphate solution, and acetonitrile [53:47 (volume ratio)] Flow rate: 0.8 mL / min Sample concentration: 8 mg / mL Sample injection volume: 25 μL Retention time of alkyl hydroxy ether acetic acid (salt) (A): 19.0 min ~ 22.5 min

[0023] <Compound (I)> The surfactant composition of the present invention contains compound (I) (hereinafter also simply referred to as compound (I)) detected by gas chromatography using petroleum ether conforming to JIS K8593 at a retention time of 10 to 17 minutes.

[0024] Examples of compounds included in compound (I) include organic solvents used in the manufacture of the alkyl hydroxy ether acetic acid (salt) (A), impurities contained in the raw materials, by-products, etc. More specifically, examples include aromatic hydrocarbons, ketones, esters, alcohols, ethers, amides, sulfoxides, aldehydes, etc. Examples of aromatic hydrocarbons include toluene and xylene, with toluene being the preferred choice. Examples of ketones include acetone, hydroxyacetone, methyl ethyl ketone (2-butanone), 2-pentanone, 2-hexanone, methyl pentyl ketone (2-heptanone), 2-octanone, 2-nonanone, 2-decanone, 2-undecaneone, and 2-dodecaneone, with acetone and methyl ethyl ketone being preferred. Examples of esters include ethyl acetate and butyl acetate, with ethyl acetate being the preferred choice. Examples of alcohols include benzyl alcohol, isopropanol, methanol, and ethanol, with benzyl alcohol being the preferred choice. Examples of ethers include tetrahydrofuran (THF), diethyl ether, and methyl tert-butyl ether (MTBE), with tetrahydrofuran and diethyl ether being preferred. Examples of amides include N,N-dimethylformamide (DMF). Examples of sulfoxides include dimethyl sulfoxide (DMSO). Examples of aldehydes include acetaldehyde, propionaldehyde, isobutyraldehyde, benzaldehyde, propionaldehyde, butyraldehyde, pentanaldehyde, hexanal, heptaldehyde, octanaldehyde, nonanaldehyde, decanaldehyde, undecanoaldehyde, dodecanoaldehyde, tetradecanoaldehyde, hexadecaldehyde, formaldehyde, and ethanolaldehyde, with benzaldehyde, nonanaldehyde, decanaldehyde, and dodecanoaldehyde being preferred. In this specification, compound (I) may contain at least one of the above-mentioned compounds, or may contain a combination of two or more of the above-mentioned compounds. When compound (I) contains a combination of two or more of the above-mentioned compounds, compound (I) may also be referred to as compound group (I). Most of the above compounds have an irritating odor. In this specification, compound (I) may also be referred to as an odor component or a volatile component.

[0025] In one embodiment of the present invention, compound (I) preferably comprises at least one selected from the group consisting of aromatic hydrocarbons, ketones, esters, alcohols, ethers, amides, sulfoxides and aldehydes, more preferably comprises at least one selected from the group consisting of aromatic hydrocarbons, alcohols and aldehydes, and even more preferably comprises at least one selected from the group consisting of toluene, benzyl alcohol, benzaldehyde, nonanal, decanal and dodecylaldehyde. In another embodiment of the invention, compound (I) preferably comprises alcohols and / or aldehydes, more preferably at least one selected from the group consisting of benzyl alcohol, benzaldehyde, nonanal, decanal and dodecylaldehyde. In another embodiment of the present invention, compound (I) preferably comprises at least one selected from the group consisting of aromatic hydrocarbons, ketones, esters, alcohols, ethers, amides and sulfoxides, more preferably comprising at least one selected from the group consisting of toluene, xylene, acetone, methyl ethyl ketone, ethyl acetate, benzyl alcohol, isopropanol, methanol, ethanol, tetrahydrofuran, diethyl ether, N,N-dimethylformamide and dimethyl sulfoxide. In this specification, when it is stated that "compound (I) contains compound a (where compound a represents the specific name of the compound)," it is not required that compound (I) consists only of compound a. That is, in addition to compound a, compound (I) may also contain other compounds (the compounds listed in the specific examples of compound (I)).

[0026] <Surfactant Composition> The surfactant composition of the present invention contains alkyl hydroxy ether acetate (salt) (A) and compound (I) detected by gas chromatography using petroleum ether conforming to JIS K8593 at a retention time of 10 to 17 minutes, wherein the peak area of ​​compound (I) as determined by gas chromatography is 0.02% to 50% of the peak area of ​​the petroleum ether.

[0027] In the surfactant composition of the present invention, the ratio of the peak area of ​​compound (I) to the peak area of ​​the petroleum ether (hereinafter also referred to as the peak area ratio of compound (I) / petroleum ether) determined by gas chromatography conforming to JIS K8593 is not particularly limited as long as it is 0.02% to 50%, but preferably 0.02% to 20%, more preferably 0.02% to 10%. If the peak area ratio of compound (I) / petroleum ether exceeds 50%, the fineness of the foam is insufficient. The surfactant composition of the present invention has excellent foam fineness because the peak area ratio of compound (I) / petroleum ether is 0.02% to 50%. The mechanism by which the fineness of the foam is improved by setting the peak area ratio of compound (I) / petroleum ether to 0.02% to 50% in the surfactant of the present invention is not yet known. However, compound (I) is a highly volatile component. Therefore, it is believed that by controlling the peak area ratio of compound (I) to petroleum ether to 0.02%~50%, the volatilization of compound (I) at the air-liquid interface is suppressed when the surfactant of the present invention foams, and the interfacial stability between air and liquid is easily maintained. Thus, it is presumed that the foam is not easily destroyed and the fineness of the foam is improved.

[0028] In this specification, "gas chromatography using petroleum ether conforming to JIS K8593" specifically refers to gas chromatography performed according to the <Determination Method of Gas Chromatography> described later. Furthermore, in this specification, the peak area ratio of compound (I) / petroleum ether is a value calculated using the method described in the <Calculation Method of Peak Area Ratio of Compound (I) / Petroleum Ether> described later.

[0029] <Calculation method for peak area ratio of compound (I) / petroleum ether> Using a surfactant composition as a sample, the peak area of ​​petroleum ether and the peak area of ​​compound (I) were determined by gas chromatography conforming to JIS K8593. The gas chromatography method described above is as described in the section on <Determination Methods by Gas Chromatography> described later.

[0030] <Determination Method by Gas Chromatography> (Sample preparation method) Place 10g of sample into a 100mL spiral tube, add 5mL of ethanol (manufactured by Fujifilm and Wooko Pure Chemicals Co., Ltd.) and 10mL of petroleum ether (manufactured by Fujifilm and Wooko Pure Chemicals Co., Ltd., conforming to JIS K8593). Add a stir bar and stir at 500rpm for 1 minute at room temperature. Let stand for 10 minutes, and collect the upper layer as the sample. Using the collected samples, the peak area of ​​petroleum ether and the peak area of ​​compound (I) were determined according to the gas chromatography determination conditions described later.

[0031] (Determination conditions by gas chromatography) Apparatus: High-performance general-purpose gas chromatograph (manufactured by Shimadzu Corporation, GC-2014) Column: Ultra2 (manufactured by GL Science Co., Ltd., inner diameter: 0.2 mm, length: 25 m, film thickness: 0.11 μm) Carrier gas: Helium Injector temperature: 280℃ Detector temperature: 310℃ Temperature program: Increase the temperature from 50℃ to 200℃ at a rate of 5℃ / min, then increase it to 280℃ at a rate of 10℃ / min. Sample injection volume: 10 μL Detector: Flame Ionization Detector (FID) Retention time of compound (I): 10–17 minutes Retention time of petroleum ether: 1.4~1.8 minutes

[0032] The peak area ratio of compound (I) / petroleum ether (in %) is calculated using the following formula based on the measured peak area of ​​petroleum ether and the peak area of ​​compound (I). Peak area ratio of compound (I) / petroleum ether = (peak area of ​​compound (I) × 100) / peak area of ​​petroleum ether

[0033] Petroleum ethers conforming to JIS K8593 contain aliphatic hydrocarbons (e.g., pentane, isopentane, hexane, etc.) with 3 to 8 carbon atoms (C3 to C8) as their main components. In this specification, "peak area of ​​petroleum ether" refers to the sum of the peak areas of each of the various compounds (e.g., pentane, isopentane, hexane, etc.) contained in the petroleum ether, determined by gas chromatography using petroleum ethers conforming to JIS K8593. In this specification, "peak area of ​​compound (I)" refers to the total peak area of ​​all compounds contained in compound (I) detected by gas chromatography of petroleum ether conforming to JIS K8593, with retention times between 10 and 17 minutes.

[0034] In the surfactant composition of the present invention, the content of alkyl hydroxy ether acetic acid (salt) (A) is not particularly limited, but from the viewpoint of foam fineness and storage stability, it is preferably 5% to 95% by weight, and more preferably 10% to 90% by weight, relative to the total weight of the active ingredients of the surfactant composition. In addition, the term "active ingredient" in this specification refers to the component after water has been removed from the raw materials of each component. In this specification, the active ingredient may also be referred to as the solid component.

[0035] The surfactant composition of the present invention can be obtained by mixing an aqueous solution or powder of a surfactant containing alkyl hydroxy ether acetate (salt) (A) with any other components described below, such that the ratio of the peak area of ​​the compound (I) determined by gas chromatography using petroleum ether conforming to JIS K8593 to the peak area of ​​the petroleum ether is within the range described above. Furthermore, the compound (I) is generally contained in the aqueous solution or powder of the surfactant containing alkyl hydroxy ether acetate (salt) (A). In the surfactant composition of the present invention, the method for adjusting the peak area ratio of compound (I) / petroleum ether to the range described above is not particularly limited, but examples include: when manufacturing the aqueous solution or powder of the surfactant containing alkyl hydroxy ether acetate (salt) (A), performing a process of adding water multiple times (e.g., 2 to 10 times, preferably 3 to 10 times) and removing volatile components by a rotary evaporator.

[0036] The surfactant composition of the present invention may also contain any other components, preferably water.

[0037] When the surfactant composition of the present invention contains water, from the viewpoint of foam fineness and storage stability, the water content is preferably 50% to 90% by weight, more preferably 60% to 85% by weight, based on the total weight of the surfactant composition. When the surfactant composition of the present invention contains water, the water may be water used as a reaction solvent in the manufacture of alkyl hydroxy ether acetic acid (salt) (A), or ordinary water or purified water mixed into alkyl hydroxy ether acetic acid (salt) (A) to achieve a specified proportion of water in the surfactant composition of the present invention. In addition, it may be hard water, soft water, natural water, deep sea water, hot spring water, electrolyzed alkaline ionized water, electrolyzed acidic ionized water, ion-exchange water, and clustered water, etc.

[0038] Furthermore, the surfactant composition of the present invention may also include a portion of the amphoteric surfactants contained in the cleaning agents described later, anionic surfactants other than alkyl hydroxy ether acetic acid (salt) (A) (hereinafter referred to as other anionic surfactants), cationic surfactants, nonionic surfactants, water, oily components, solvents, humectants, chelating agents, conditioning agents, thickeners, whitening agents, pH adjusters, cooling agents, colorants, ultraviolet scattering agents, ultraviolet absorbing agents, preservatives, and antioxidants. Furthermore, the surfactant composition of the present invention may also contain unreacted materials and residues of the reaction catalyst during the synthesis of alkyl hydroxy ether acetic acid (salt) (A).

[0039] The surfactant composition of the present invention can be obtained by mixing alkyl hydroxy ether acetic acid (salt) (A) and water, etc., as needed, in a prescribed ratio using a known mixing device equipped with a stirring device such as a paddle-type stirring blade or a spiral-type stirring blade.

[0040] The surfactant composition of the present invention is preferred as a raw material for cleaning agents due to its excellent foam fineness.

[0041] Cleaning Agent The cleaning agent of the present invention is a cleaning agent comprising the surfactant composition of the present invention. The cleaning agent of the present invention contains alkyl hydroxy ether acetic acid (salt) (A), which is an essential component of the surfactant composition of the present invention. In addition, in this instruction manual, "cleansing agent" refers to cleansing agents for hair or skin (shampoo, facial cleanser, shower gel, solid soap, makeup remover, and liquid soap, etc.).

[0042] In the cleaning agent of the present invention, the content of the surfactant composition of the present invention is not particularly limited, but from the viewpoint that the foam persistence of the cleaning agent is further improved and the irritating odor is further suppressed, it is preferably 0.1% to 10.0% by weight, more preferably 0.5% to 3.0% by weight, relative to the total weight of the cleaning agent.

[0043] In the cleaning agent of the present invention, the content of alkyl hydroxy ether acetic acid (salt) (A) is not particularly limited, but from the viewpoint of cleaning power, it is preferably 0.01% to 9.0% by weight, and more preferably 0.01% to 2.5% by weight, relative to the total weight of the cleaning agent.

[0044] In addition to the surfactant composition of the present invention, the cleaning agent of the present invention may also contain any other ingredients. Examples of such other ingredients include amphoteric surfactants, other anionic surfactants, cationic surfactants, nonionic surfactants, water, oily components, solvents, humectants, chelating agents, conditioning agents, thickeners, whitening agents, pH adjusters, cooling agents, colorants, ultraviolet scattering agents, ultraviolet absorbing agents, preservatives, and antioxidants, as well as other known cosmetic ingredients.

[0045] Examples of amphoteric surfactants include alkyl dimethyl acetate betaine, fatty acid amyl betaine, alkyl imidazoline betaine, sulfobetaine-type amphoteric surfactants, and amphoteric amino acid-based surfactants.

[0046] Examples of alkyl dimethyl aminoacetic betaine include lauryl dimethyl aminoacetic betaine (also known as lauryl betaine), myristyl dimethyl aminoacetic betaine (also known as myristyl betaine), and stearyl dimethyl aminoacetic betaine (also known as stearyl betaine).

[0047] Examples of fatty acid amamidopropyl betaines include lauryl amamidopropyl betaine, myristoyl amamidopropyl betaine, isostearic acid amamidopropyl betaine, and coconut oil fatty acid amamidopropyl betaine.

[0048] Examples of alkyl imidazoline betaines include 2-coconut fatty acid-N-hydroxyethyl-N-hydroxyethyl imidazoline betaine, sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine (also known as lauroyl amphoteric acid sodium) and sodium N-coconut fatty acid acyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine (also known as cocoyl amphoteric acid sodium).

[0049] Examples of sulfobetaine-type amphoteric surfactants include lauramidopropyl hydroxysulfobetaine and cocamidopropyl hydroxysulfobetaine.

[0050] Examples of amphoteric amino acid-based surfactants include sodium lauroyl aspartate (lauroyl aspartate).リウム), Sodium Myristoyl Aspartate (Miristoyl Aspartate), Lauryl-β- Sodium aminopropionate (ラウリル-β-Aminopropionate) and lauroylmethyl-β-alanine Sodium (ラウロイルメチル-β-アラニンナトリウム) [alias: lauroyl methylalanine Na], etc.

[0051] Other anionic surfactants include ether carboxylic acids or their salts (hereinafter referred to as ether carboxylic acids or their salts) other than alkyl hydroxy ether acetic acid (salt) (A), sulfate ester salts, sulfonates, phosphate ester salts, fatty acid salts, and acylated amino acid salts.

[0052] Examples of ether carboxylic acids or their salts include polyoxyethylene (average degree of polymerization 4) lauryl ether carboxylate sodium [alias: polyoxyethylene (average degree of polymerization 4) lauryl ether acetate sodium, lauryl alcohol polyether-4 carboxylate Na], polyoxyethylene (average degree of polymerization 6) lauryl ether carboxylate sodium [alias: lauryl alcohol polyether-6 carboxylate Na], polyoxyethylene (average degree of polymerization 4) tridecyl ether carboxylate sodium [alias: tridecyl alcohol polyether-4 carboxylate Na] and polyoxyethylene (average degree of polymerization 7) tridecyl ether carboxylate sodium [alias: tridecyl alcohol polyether-7 carboxylate sodium], etc.

[0053] Examples of sulfate ester salts include sodium lauryl sulfate [also known as: lauryl sulfate Na], polyoxyethylene (average degree of polymerization 2) lauryl ether sulfate [also known as: lauryl alcohol polyether-2 sulfate Na], polyoxyethylene (average degree of polymerization 3) lauryl ether sulfate [also known as: lauryl alcohol polyether-3 sulfate Na], polyoxyethylene (average degree of polymerization 3) lauryl ether sulfate triethanolamine [also known as: lauryl alcohol polyether-3 sulfate TEA], polyoxyethylene (average degree of polymerization 3) coconut oil fatty acid monoethanolamide sulfate [also known as: PEG-3 coconut oil fatty acid amide MEA sulfate Na], and polyoxyethylene (average degree of polymerization 3) alkyl (carbon number 12-13) ether sulfate [also known as: (C12, C13) alkanol polyether-3 sulfate Na], etc.

[0054] Examples of sulfonates include sodium olefin (C14-C16) sulfonate [also known as: olefin (C14-C16) sulfonate Na], sodium dodecylbenzene sulfonate [also known as: dodecylbenzene sulfonate Na], disodium lauryl sulfosuccinate (average degree of polymerization 2) [also known as: lauryl alcohol polyether sulfosuccinate 2Na], disodium lauryl sulfosuccinate [also known as: lauryl sulfosuccinate 2Na], and disodium lauroyl alcohol sulfosuccinate (average degree of polymerization 5) sulfosuccinate.

[0055] As phosphate salts, sodium lauryl phosphate [alias: sodium lauryl phosphate] and sodium polyoxyethylene lauryl ether phosphate [alias: triethanolamine lauryl ether-4 phosphate] etc. are cited.

[0056] As fatty acid salts, salts of myristic acid (sodium myristate [alias: sodium myristic acid], potassium myristate [alias: potassium myristic acid], triethanolamine myristate [alias: triethanolamine myristic acid] etc.), salts of lauric acid (sodium laurate [alias: sodium lauric acid], potassium laurate [alias: potassium lauric acid], triethanolamine laurate [alias: triethanolamine lauric acid] etc.), salts of stearic acid (sodium stearate [alias: sodium stearic acid], triethanolamine stearate [alias: triethanolamine stearic acid] etc.), salts of palmitic acid (sodium palmitate [alias: sodium palmitic acid] and triethanolamine palmitate [alias: triethanolamine palmitic acid]) etc. are cited.

[0057] As acylated amino acid salts, potassium N-coconut oil fatty acid acyl glycine [alias: potassium cocoyl glycine], sodium N-coconut oil fatty acid methyl taurine [alias: sodium cocoyl methyl taurine], sodium N-coconut oil fatty acid sarcosine [alias: sodium cocoyl sarcosine], sodium N-lauroyl sarcosine [alias: sodium lauroyl sarcosine], triethanolamine N-coconut oil fatty acid sarcosine [alias: triethanolamine acyl glutamate], triethanolamine N-coconut oil fatty acid acyl-L-glutamate [alias: triethanolamine cocoyl glutamate], sodium N-coconut oil fatty acid acyl-L-glutamate [alias: sodium cocoyl glutamate] and triethanolamine lauroyl-L-glutamate [alias: triethanolamine lauroyl glutamate] etc. are cited.

[0058] As cationic surfactants, quaternary ammonium salts and amine salts are cited.

[0059] As quaternary ammonium salts, stearyl trimethyl ammonium chloride [alias: stearyl trimethyl ammonium chloride], behenyl trimethyl ammonium chloride [alias: behenyl trimethyl ammonium chloride], distearyl dimethyl ammonium chloride [alias: distearyl dimethyl ammonium chloride] and lanolin fatty acid aminopropyl ethyl dimethyl ammonium ethyl sulfate (ethyl sulfate lanolin fatty acid aminopropyl ethyl dimethyl ammonium) [alias: quaternary ammonium salt-33] etc. are cited.

[0060] As amine salts, diethylaminoethyl stearamide lactate (stearic acid diethylaminoethyl amide lactate) [alias: stearamide ethyl diethylamine lactate] and dimethylaminoethyl behenamide lactate (behenic acid dimethylaminoethyl amide lactate) [alias: behenamide propyl dimethylamine lactate] etc. are cited.

[0061] Examples of nonionic surfactants include alkylene oxide (2-8 carbon atoms) adducts of alcohols with 4-24 carbon atoms, esters or ethers of fatty acids with 8-24 carbon atoms polymerized with alcohols or alkylene oxide (2-8 carbon atoms), alkylene oxide adducts of higher fatty acid esters of poly(2-10-membered) alcohols, polyglycerol fatty acid esters, polyglycerol fatty acid esters, and fatty acid alkanolamides.

[0062] Examples of epoxide adducts (2-8 carbon atoms) of alcohols with 4-24 carbon atoms include polyoxyethylene (average degree of polymerization 10) butyl ether (average degree of polymerization 7) [alias: PPG-7 butanol polyether-10], polyoxyethylene (average degree of polymerization 20) lauryl ether [alias: lauryl alcohol polyether-20], polyoxyethylene (average degree of polymerization 20) oil-based ether [alias: oil alcohol polyether-20], polyoxyethylene (average degree of polymerization 12) polyoxypropylene (average degree of polymerization 2) cetyl ether [alias: PPG-2 cetyl alcohol polyether-12 (PPG-2セテス-12)], and mixtures of polyoxyethylene cetearyl ether and polyoxyethylene oil-based ether [alias: cetearyl alcohol polyether-5 (セトレス-5)].

[0063] Examples of esters or ethers that are polymers of fatty acids with 8-24 carbon atoms and alcohols or epoxides (2-8 carbon atoms) include glyceryl monostearate, glyceryl monocaprylate, glyceryl monomyristate, glyceryl monooleate, ethylene glycol monostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, sorbitan monooleate, sorbitan monooleate, sorbitan monooleate, coconut oil fatty acid sorbitan, and polyoxyethylene monooleate (average degree of polymerization 6). Sorbitan (also known as PEG-6 oleic acid), polyoxyethylene (average degree of polymerization 20) stearyl ether (also known as stearyl alcohol polyether-20), polyoxyethylene monostearate (average degree of polymerization 23) (also known as PEG-23 stearate), polyoxyethylene distearate (average degree of polymerization 3) (also known as PEG-3 distearate), polyoxyethylene distearate (average degree of polymerization 150) (also known as PEG-150 distearate), polyoxyethylene distearate (average degree of polymerization 190) (also known as PEG-190 distearate), and polyoxyethylene (average degree of polymerization 60) cured castor oil (also known as PEG-60 hydrogenated castor oil), etc.

[0064] Examples of epoxide alkyl adducts of higher fatty acid esters of poly(2- to 10-membered) alcohols include: ethylene oxide (average degree of polymerization 6) with glycerides of caprylic and capric acids [alias: (caprylic / capric acid) PEG-6 glyceride]; polyoxyethylene monolaurate (average degree of polymerization 10) sorbitan [alias: PEG-10 sorbitan laurate]; polyoxyethylene monolaurate (average degree of polymerization 80) sorbitan [alias: PEG-80 sorbitan laurate]; polyoxyethylene monooleate (average degree of polymerization 6) sorbitan [alias: PEG-6 sorbitan oleate]; polyoxyethylene monooleate (average degree of polymerization 3 ...6) sorbitan [alias: PEG-6 sorbitan oleate]; polyoxyethylene monooleate (average degree of polymerization 3) sorbitan [alias: PEG-6 sorbitan oleate]; polyoxyethylene monooleate (average degree of polymerization 6) sorbitan [alias: PEG-6 sorbitan Names include: PEG-3 sorbitan oleate, PEG-40 oleate sorbitan (average degree of polymerization 40), PEG-6 stearate sorbitan (average degree of polymerization 6), PEG-40 stearate sorbitan (average degree of polymerization 40), PEG-160 triisostearate sorbitan (average degree of polymerization 160), and PEG-120 dioleoyl methyl glucoside (degree of polymerization 120).

[0065] Examples of polyglycerol fatty acid esters include monooleate decaglycerol ester [also known as: polyglycerol oleate-10], monolaurate decaglycerol ester [also known as: polyglycerol laurate-10], isostearate decaglycerol ester [also known as: polyglycerol isostearate-10], disostearate polyglycerol ester [also known as: polyglycerol disostearate-10], stearate polyglycerol ester [also known as: polyglycerol stearate-10], polyricinoleate hexaglycerol ester [also known as: polyricinoleate-6], and monoisostearate diglycerol ester [also known as: polyglycerol isostearate-2], etc.

[0066] Examples of fatty acid alkanolamides include coconut oil fatty acid monoethanolamide (also known as cocamide MEA), coconut oil fatty acid N-methylethanolamide (also known as cocamide methyl MEA), and coconut oil fatty acid diethanolamide (also known as cocamide DEA).

[0067] In addition to ordinary water and purified water, other types of water include hard water, soft water, natural water, deep ocean water, hot spring water, electrolyzed alkaline ionized water, electrolyzed acidic ionized water, ion-exchange water, and clustered water.

[0068] Examples of oily components include liquid oils, solid oils, hydrocarbon oils, synthetic ester oils, silicone oils, and essential oils.

[0069] Examples of liquid oils include avocado oil, camellia oil, turtle oil, macadamia seed oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, almond oil, wheat germ oil, camellia oil, castor oil, flaxseed oil, safflower oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, citronella oil, rice bran oil, jojoba oil, rice germ oil, triethylhexanoate, and triisopalmitoate.

[0070] Examples of solid fats include cocoa butter, coconut oil, candelilla wax, beeswax, shea butter, horse oil, hydrogenated coconut oil, palm oil, beef tallow, lanolin, hydrogenated beef tallow, palm kernel oil, hydrogenated palm oil, lard, wood wax, and hydrogenated castor oil.

[0071] Examples of hydrocarbon oils include 2,2,4,6,6-pentamethylheptane (also known as isododecane), 2,2,4,4,6,8,8-heptamethylnonane (also known as isohexadecane), hexamethyltetracosane (also known as squalane), 2,6,10,15,19,23-hexamethyltetracos-2,6,10,14,18,22-hexene (also known as squalene), petrolatum, paraffin wax, hydrogenated polyisobutylene, oscarlat (also known as ozokelace), 2,6,10,14-tetramethylpentadecane, pure oscarlat (also known as celesin), and microcrystalline wax.

[0072] Examples of synthetic ester oils include isopropyl myristate, cetyl ethylhexanoate, octyl dodecyl myristate, cetyl palmitate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl ethylhexanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesterol hydroxystearate, and ethylene diethylhexanoate. Alcohol esters, neopentyl glycol didecanoate, triesters of caprylic and capric acids with glycerol [alias: tri(caprylic / capric acid) glycerol esters], hexaesters of hydroxystearic acid, stearic acid, and rosin acid with dipentaerythritol [alias: hexa(hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol esters], diisostearyl malate, glyceryl diisostearate, trimethylolpropane triethylhexanoate, trimethylolpropane triethylhexanoate, tetraethyl... Pentaerythritol hexanoate, trimethylolpropane triisostearate, ethylhexyl palmitate, trimyristic acid glyceride [also known as: glyceryl trimyristicate], methyl castor oil, oleic acid ester, diisobutyl adipic acid, ester of lauroyl glutamate with phytosterol and octyl dodecyl alcohol [also known as: lauroyl glutamate di(phytosterol / octyl dodecyl) ester], diheptyl undecyl adipic acid, ethyl laurate, sebacic acid Diethylhexyl ester, isocetyl myristate, hexyl decyl palmitate, dihexyl decyl adipate, diisopropyl sebacate, diethylhexyl succinate, triethyl citrate, polyoxyethylene triisostearate (average degree of polymerization 3) trimethylolpropane ester [also known as: PEG-3 trimethylolpropane triisostearate], diglyceride triisostearate [also known as: polyglycerol-2 triisostearate], and sucrose tetraisostearate, etc.

[0073] Examples of silicone oils include chain polysiloxanes, cyclic polysiloxanes, and modified polysiloxanes (such as amino-modified polysiloxanes, polyether-modified polysiloxanes, alkyl-modified polysiloxanes, and fluorine-modified polysiloxanes).

[0074] Examples of chain-like polysiloxanes include methylphenyl polysiloxane [also known as diphenyl polydimethylsiloxane], octyl polymethylsiloxane, polydimethylsiloxane, dimethyl polysiloxane crosslinked with divinyl dimethyl polysiloxane [also known as (polydimethylsiloxane / vinyl polydimethylsiloxane) crosslinked polymer], and dimethyl polysiloxane copolymer crosslinked with phenyl vinyl dimethyl polysiloxane [also known as (polydimethylsiloxane / phenyl vinyl polydimethylsiloxane) crosslinked polymer], etc.

[0075] Examples of cyclic polysiloxanes include decamethylcyclopentasiloxane (also known as cyclopentasiloxane) and dodecylmethylcyclohexylsiloxane (also known as cyclohexylsiloxane).

[0076] Examples of modified polysiloxanes include aminopropyl polydimethylsiloxane, alkyl (C26-C28) polydimethylsiloxane, alkyl (C30-C45) polydimethylsiloxane, polyoxyethylene (average degree of polymerization 10)·methyl polysiloxane copolymer [alias: PEG-10 polydimethylsiloxane], polyoxyethylene (average degree of polymerization 12)·methyl polysiloxane copolymer [alias: PEG-12 polydimethylsiloxane], and polyoxyethylene (average degree of polymerization 9) dimethylsiloxane ethyl polydimethylsiloxane [alias: PEG-9 polydimethylsiloxane ethyl polydimethylsiloxane].

[0077] Examples of solvents include ethanol, isopentyl glycol, denatured alcohol, dipropylene glycol (DPG), 1,2-hexanediol, isododecane, isopropanol, butyl acetate, diethylene glycol monoethyl ether (ethoxydiethylene glycol), and propylene glycol (PG).

[0078] Examples of moisturizers include glycerin, 1,3-butanediol (also known as BG), hydrogenated rapeseed oil alcohol, sorbitol, sodium acetate (also known as sodium lactate), sodium pyrrolidone carboxylate (also known as PCN-Na), sodium hyaluronate (also known as sodium hyaluronate), and sodium chondroitin sulfate (also known as sodium chondroitin sulfate).

[0079] Examples of chelating agents include ethylenediaminetetraacetic acid (EDTA), disodium EDTA, sodium polyphosphate, disodium pyrophosphate, gluconic acid, sodium gluconate, and ascorbic acid.

[0080] Examples of conditioning agents include polymers of quaternary ammonium salts obtained by adding glycidyltrimethylammonium chloride to hydroxyethyl cellulose [alias: polyquaternary ammonium salt-10], polymers of quaternary ammonium salts obtained by adding acrylamide and dimethyl diallyl ammonium chloride [alias: polyquaternary ammonium salt-7], copolymers of dimethyl diallyl ammonium chloride and acrylic acid [alias: polyquaternary ammonium salt-22], copolymers of vinyl acetate and vinylpyrrolidone [alias: (VP / VA) copolymer], quaternary ammonium salts obtained by adding glycidyltrimethylammonium chloride to guar gum [alias: guar gum hydroxypropyltrimethylammonium chloride], polyethylene glycol 20000 [alias: PEG-400], sodium polyacrylate [alias: polyacrylate Na], hydroxyethyl cellulose, and D-panthenol [alias: panthenol], etc.

[0081] Examples of thickeners include guar gum, xanthan gum, starch, behenol, stearyl alcohol, cetearyl alcohol, cetyl alcohol, myristyl alcohol, carboxyvinyl polymers (also known as carbomer), hydroxypropyl methylcellulose, polyvinyl alcohol, sodium polyacrylate (also known as polyacrylate Na), sodium salts of polymers obtained by grafting acrylic acid with starch (also known as Na-grafted starch), lithium distearate (also known as distearate dimethylammonium lithium montmorillonite), talc, and copolymers of polyethylene distearate and alkyl methacrylate (carbon atoms 10-30) (also known as cross-linked polymers of acrylate / alkyl methacrylate (C10-C30)).

[0082] Examples of skin-whitening agents include tranexamic acid, arbutin, and hydroquinone.

[0083] Examples of pH adjusters include lactic acid, citric acid, phosphoric acid, malic acid, tartaric acid, hydrochloric acid, acetic acid, sodium hydroxide, potassium hydroxide, and triethanolamine.

[0084] Examples of cooling agents include menthol, peppermint oil, thymol, methyl salicylate, and camphor.

[0085] Examples of colorants include Blue No. 1, Blue No. 2, Green No. 3, and Red No. 1.

[0086] Examples of ultraviolet scattering agents include titanium dioxide and zinc oxide.

[0087] Examples of ultraviolet absorbers include ethylhexyl methoxycinnamate, the ester of dimethyl-p-aminobenzoic acid and 2-ethylhexanol [also known as dimethyl-PABA-ethylhexyl ester], and tert-butylmethoxydibenzoylmethane.

[0088] Examples of preservatives include phenoxyethanol, o-cymene-5-ol, methylparaben, ethylparaben, propylparaben, isopropylparaben, butylparaben, and isobutylparaben.

[0089] Examples of antioxidants include vitamin E (also known as tocopherol), butylated hydroxytoluene (BHT), butylated hydroxyanisole (BHA), dipotassium glycyrrhizate (also known as glycyrrhizic acid 2K), ascorbate palmitate, and rosemary leaf extract.

[0090] The types and contents of known cosmetic ingredients that can be used in the cleaning agent of the present invention, as needed, are as follows. Based on the total weight of the cleaning agent, the amphoteric surfactant, other anionic surfactant, cationic surfactant, nonionic surfactant, water, oily components, solvent, and humectant are preferably 50% by weight or less, and more preferably 10% by weight or less. Based on the total weight of the cleaning agent, the chelating agent, conditioning agent, thickener, and whitening agent are preferably 30% by weight or less, and more preferably 10% by weight or less. Based on the total weight of the cleaning agent, the pH adjuster, cooling agent, colorant, ultraviolet scattering agent, ultraviolet absorbing agent, preservative and antioxidant are preferably 10% by weight or less, and more preferably 5% by weight or less.

[0091] The cleaning agent of the present invention can be manufactured by mixing the surfactant composition of the present invention with any other ingredients using a known mixer. Examples of mixers used in manufacturing the cleaning agent of the present invention include Henschel mixers, ball mills, jet mills, kneaders, planetary mixers, sand mills, grinding mills, ribbon mixers, dispersion mixers, and homogenizers, with dispersion mixers being preferred.

[0092] The cleaning agent of the present invention is preferably in solid, liquid or paste form at 25°C, and is further preferably in liquid form from the viewpoint of ease of operation.

[0093] When the cleaning agent of the present invention is a shampoo, the shampoo preferably contains, for example, the following ingredients.

[0094] As other anionic surfactants, preferably at least one is selected from the group consisting of sodium lauryl ether sulfate of polyoxyethylene (average degree of polymerization 2), sodium lauryl ether acetate of polyoxyethylene (average degree of polymerization 4), sodium N-coconut oil fatty acid acyl-L-glutamate, sodium N-lauroyl sarcosinate and sodium olefin (C14-C16) sulfonate. Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 3.0 wt% to 10.0 wt% of sodium lauryl ether sulfate (average degree of polymerization 2). Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 1.0 wt% to 5.0 wt% of sodium lauryl ether acetate (average degree of polymerization 4). Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 3.0 wt% to 10.0 wt% of sodium N-coconut oil fatty acid acyl-L-glutamate. Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 1.0 wt% to 5.0 wt% of sodium N-lauroyl sarcosinate. Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 1.0 wt% to 10.0 wt% of sodium olefin (C14-C16) sulfonate.

[0095] As an amphoteric surfactant, it is preferably selected from at least one of the groups consisting of cocamidopropyl betaine and 2-coconut fatty acid-N-hydroxyethyl-N-hydroxyethyl imidazoline betaine. Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 1.0% to 5.0% by weight of cocamidopropyl betaine. Based on the total weight of the shampoo, and calculated as an active ingredient, the shampoo may contain 1.0% to 5.0% by weight of 2-coconut fatty acid-N-hydroxyethyl-N-hydroxyethylimidazolinium betaine.

[0096] As a moisturizer, it is preferably selected from at least one of the groups consisting of 1,3-butanediol and glycerin. Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 1.0% to 5.0% by weight of 1,3-butanediol. Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 1.0% to 5.0% by weight of glycerin.

[0097] As a conditioning agent, it is preferably selected from at least one of the group consisting of polyquaternium-22, polyquaternium-7 and polyquaternium-10. Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 0.1 wt% to 1.0 wt% of polyquaternium-22. Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 0.005 wt% to 0.5 wt% of polyquaternium-7. Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 0.1 wt% to 1.0 wt% of polyquaternium-10.

[0098] As an oily component, polydimethylsiloxane is preferred. Based on the total weight of the shampoo, and converted to active ingredients, the shampoo may contain 0.1% to 1.0% by weight of polydimethylsiloxane.

[0099] EDTA-2Na is preferred as a chelating agent. Based on the total weight of the shampoo, and calculated in terms of active ingredients, the shampoo may contain 0.05% to 0.5% by weight of EDTA-2Na.

[0100] As a nonionic surfactant, it is preferably selected from at least one of the groups consisting of PEG-160 triisostearate sorbitan and N-methylethanolamide of coconut oil fatty acids. Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 1.0% to 5.0% by weight of PEG-160 triisostearate (sorbitan). Based on the total weight of the shampoo, and calculated using active ingredients, the shampoo may contain 1.0% to 5.0% by weight of N-methylethanolamide (coconut oil fatty acid).

[0101] Menthol is preferred as a cooling agent. Based on the total weight of the shampoo, and converted to active ingredients, the shampoo may contain 0.5% to 3.0% menthol.

[0102] Citric acid is preferred as a pH adjuster. Based on the total weight of the shampoo, and converted to active ingredients, the shampoo may contain 0.05% to 0.5% citric acid.

[0103] When the cleaning agent of the present invention is a shampoo, the following composition is provided as a preferred composition of each component when converted into effective ingredients. Alkyl hydroxy ether acetic acid (salt) (A): 0.05% by weight to 6.00% by weight Other anionic surfactants: 3.0% to 20.0% by weight Amphoteric surfactants: 1.0 wt% ~ 5.0 wt% Moisturizer: 1.0% to 5.0% by weight Conditioner: 0.005%~1.0% by weight Oily components: 0.1% to 1.0% by weight Chelating agent: 0.05% to 0.5% by weight Nonionic surfactants: 1.0 wt% ~ 10.0 wt% Cooling agent: 0.5% to 3.0% by weight pH adjuster: 0.05% to 0.5% by weight

[0104] When the cleansing agent of the present invention is a pump-foamer facial cleanser, the pump-foamer facial cleanser preferably contains, for example, the following ingredients.

[0105] As other anionic surfactants, it is preferred to be at least one selected from the group consisting of lauroyl-L-glutamic acid triethanolamine and sodium olefin (C14-C16) sulfonate. Based on the total weight of the pump-type foaming facial cleanser, and calculated as an active ingredient, the pump-type foaming facial cleanser may contain 1.0% to 10.0% by weight of lauroyl-L-glutamic acid triethanolamine. Based on the total weight of the pump-type foaming facial cleanser, and calculated as an active ingredient, the pump-type foaming facial cleanser may contain 0.5% to 3.0% by weight of olefin (C14-C16) sodium sulfonate.

[0106] As an amphoteric surfactant, cocamidopropyl betaine is preferred. Based on the overall weight of the pump-foaming facial cleanser, and converted to active ingredients, the pump-foaming facial cleanser may contain 0.5% to 3.0% by weight of cocamidopropyl betaine.

[0107] As a conditioning agent, polyquaternium-7 is preferred. Based on the overall weight of the pump-type foaming facial cleanser, and converted to active ingredients, the pump-type foaming facial cleanser may contain 0.05% to 0.5% by weight of polyquaternium-7.

[0108] When the cleaning agent of the present invention is a facial cleanser for a pump-type foamer, the following composition is provided as a preferred composition of each component when calculated based on the effective ingredients. Alkyl hydroxy ether acetic acid (salt) (A): 0.01 wt% ~ 4.00 wt% Other anionic surfactants: 0.5% to 10.0% by weight Amphoteric surfactants: 0.5% to 3.0% by weight Conditioner: 0.05%~0.5% by weight

[0109] When the cleansing agent of the present invention is a cream facial cleanser, the cream facial cleanser preferably contains, for example, the following ingredients.

[0110] As other anionic surfactants, it is preferred to be at least one selected from the group consisting of sodium sodium N-coconut oil fatty acid acyl-L-glutamate, potassium N-coconut oil fatty acid acyl-glycine, salts of lauric acid, salts of stearic acid and salts of palmitic acid. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, it may contain 1.0 wt% to 3.0 wt% of N-coconut oil fatty acid acyl-L-glutamate sodium salt. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, it may contain 5.0 wt% to 20.0 wt% of N-coconut oil fatty acid acyl-glycine potassium. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, it may contain 0.5 wt% to 5.0 wt% of lauric acid salt. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, it may contain 0.5 wt% to 20.0 wt% of stearic acid salt. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, it may contain 5.0 wt% to 20.0 wt% of palmitic acid salt. In addition, in this specification, when other anionic surfactants contain fatty acid salts, it is assumed that all fatty acids are potassium salts, and the weight of the potassium salt of the fatty acid is regarded as the weight of the fatty acid salt.

[0111] As an amphoteric surfactant, cocamidopropyl betaine is preferred. Based on the overall weight of the cream-based facial cleanser, and calculated using active ingredients, the cream-based facial cleanser may contain 0.5% to 3.0% by weight of cocamidopropyl betaine.

[0112] Glycerin is preferred as a humectant. Based on the overall weight of the cream-based facial cleanser, and calculated using active ingredients, a cream-based facial cleanser may contain 5.0% to 20.0% glycerin.

[0113] As a conditioning agent, polyquaternium-7 is preferred. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, the cream-based facial cleanser may contain 0.01% to 0.10% by weight of polyquaternium-7.

[0114] Vitamin E is the preferred antioxidant. Based on the overall weight of the cream-based facial cleanser, and calculated using active ingredients, a cream-based facial cleanser may contain 0.05% to 0.30% by weight of Vitamin E.

[0115] The preferred thickener is ethylene distearate. Based on the overall weight of the cream-based facial cleanser, and calculated using active ingredients, the cream-based facial cleanser may contain 1.0% to 3.0% by weight of glycol distearate.

[0116] As a nonionic surfactant, it is preferably selected from at least one of the groups consisting of PEG-190 distearate and coconut oil fatty acid N-methylethanolamide. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, the cream-based facial cleanser may contain 3.0% to 10.0% by weight of PEG-190 distearate. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, the cream-based facial cleanser may contain 1.0% to 3.0% by weight of coconut oil fatty acid N-methylethanolamide.

[0117] Potassium hydroxide is preferred as a pH adjuster. Based on the total weight of the cream-based facial cleanser, and calculated using active ingredients, the cream-based facial cleanser may contain 3.0% to 10.0% by weight of potassium hydroxide.

[0118] When the cleansing agent of the present invention is a cream-based facial cleanser, the following composition is provided as a preferred composition of each component, calculated in terms of active ingredients. Alkyl hydroxy ether acetic acid (salt) (A): 0.015 wt% ~ 6.0 wt% Other anionic surfactants: 10.0% to 40.0% by weight Amphoteric surfactants: 0.5% to 3.0% by weight Moisturizer: 5.0% to 20.0% by weight Conditioner: 0.01% to 0.10% by weight Antioxidant: 0.05% to 0.30% by weight Thickener: 1.0% to 10.0% by weight Nonionic surfactants: 1.0 wt% ~ 13.0 wt% pH adjuster: 3.0% to 10.0% by weight

[0119] The following information is disclosed in this specification.

[0120] This disclosure (1) is a surfactant composition comprising an alkyl hydroxy ether acetic acid (salt) of the following general formula (1) and a compound (I) detected by gas chromatography using petroleum ether conforming to JIS K8593 at a retention time between 10 and 17 minutes, wherein the peak area of ​​the compound (I) as determined by the gas chromatography is in the ratio of the peak area of ​​the petroleum ether to the peak area of ​​the petroleum ether, which is 0.02% to 50%. R 1 -CH(OH)-CH2-OCH2COOM 1 (1) In general formula (1), R 1 M represents an alkyl group with 8 to 12 carbon atoms. 1 This represents a hydrogen atom, a sodium atom, a potassium atom, or triethanolamine.

[0121] This disclosure (2) is a cleaning agent comprising the surfactant composition described in this disclosure (1). Example

[0122] The present invention will be further described below through examples and comparative examples, but the present invention is not limited thereto.

[0123] <Manufacturing Example 1> Add 50g of 1,2-dodecanediol [manufactured by Merck, Ltd.], 10g of toluene [manufactured by Fujifilm and Kohden Chemical Co., Ltd.], and 30g of sodium monochloroacetate [manufactured by Denak Co., Ltd.] to a 1L four-necked flask equipped with a stirrer, reflux condenser, dropping funnel, and thermometer. After nitrogen purging, heat to 50°C, and slowly add 10g of granular sodium hydroxide [manufactured by Tosoh Co., Ltd.] over 5 hours with stirring. Then allow the mixture to mature for 3 hours to carry out the reaction. Adjust the reacted solution to 50 °C, add 25 g of ion-exchanged water, heat up to 70 °C, add 32 g of 38% hydrochloric acid aqueous solution [manufactured by Toagosei Co., Ltd.], stir for 30 minutes to obtain a solution. Transfer the obtained solution to a separatory funnel, let it stand for 30 minutes and then separate the layers to remove the lower-layer solution. Add 10 g of sodium hydroxide to the remaining supernatant, and use a rotary evaporator to reduce the pressure to 2.7 kPa at 75 °C. Remove the volatile components by maintaining this temperature and pressure for 7 hours. Further, repeat the following process 4 times to obtain surfactant-containing powder 1: add 10 g of water, use a rotary evaporator to reduce the pressure to 2.7 kPa at 75 °C, and maintain this temperature and pressure for 7 hours to remove the volatile components. Take a 1-g sample from the surfactant-containing powder 1, use a liquid chromatography / time-of-flight mass spectrometer (LC-TOF-MS), and determine the molecular structure of the surfactant contained in the surfactant-containing powder 1 (including the types of cations constituting the surfactant) according to the <LC-TOF-MS measurement conditions> described below. Furthermore, measure the content of alkyl hydroxy ether acetic acid (salt) (A) in the surfactant-containing powder 1 according to the <HPLC measurement conditions for alkyl hydroxy ether acetic acid (salt) (A)> described below. The surfactant-containing powder 1 contains 50 wt% of sodium dodecyl hydroxy ether acetate as alkyl hydroxy ether acetic acid (salt) (A), and contains toluene, benzaldehyde, benzyl alcohol, nonanal, decanal, and dodecanal as compound (I). For the surfactant-containing powder 1, no other alkyl hydroxy ether acetic acid (salt) (A) other than sodium dodecyl hydroxy ether acetate was detected.

[0124] <Production Example 2> Add 50 g of 1,2-dodecanediol [manufactured by FUJIFILM Wako Pure Chemical Corporation], 10 g of toluene [manufactured by FUJIFILM Wako Pure Chemical Corporation], and 30 g of sodium chloroacetate [manufactured by Denak Co., Ltd.] to a 1-L four-necked flask equipped with a stirring device, a reflux condenser, a dropping funnel, and a thermometer. After purging with nitrogen, heat up to 50 °C, and slowly add 10 g of granular sodium hydroxide [manufactured by Tosoh Corporation] under stirring over 5 hours. Then, carry out aging for 3 hours to carry out the reaction. Adjust the reacted solution to 50 °C, add 25 g of ion-exchanged water, heat up to 70 °C, add 32 g of 38% hydrochloric acid aqueous solution [manufactured by Toagosei Co., Ltd.], stir for 30 minutes to obtain a solution. Transfer the obtained solution to a separatory funnel, let it stand for 30 minutes and then separate the layers to remove the lower-layer solution. Add 10 g of sodium hydroxide to the remaining supernatant, and use a rotary evaporator to reduce the pressure to 2.7 kPa at 75 °C. Remove the volatile components by maintaining this temperature and pressure for 7 hours to obtain surfactant-containing powder 2. Take a 1 g sample from the surfactant-containing powder 2 and use a liquid chromatography / time-of-flight mass spectrometer (LC-TOF-MS) to determine the molecular structure of the surfactant contained in the surfactant-containing powder 2 (including the type of cation constituting the surfactant) according to the <LC-TOF-MS measurement conditions> described below. Furthermore, measure the content of alkyl hydroxy ether acetic acid (salt) (A) in the surfactant-containing powder 2 according to the <HPLC measurement conditions for alkyl hydroxy ether acetic acid (salt) (A)> described below. The surfactant-containing powder 2 contains 50% by weight of sodium dodecyl hydroxy ether acetate as alkyl hydroxy ether acetic acid (salt) (A) and contains toluene, benzaldehyde, benzyl alcohol, nonanal, decanal, and dodecanal as compound (I). For the surfactant-containing powder 2, no other alkyl hydroxy ether acetic acid (salt) (A) other than sodium dodecyl hydroxy ether acetate was detected.

[0125] <LC-TOF-MS measurement conditions> · Equipment: Xevo G2-XS (manufactured by Waters) · Analytical column: Scherzo SM-C18 (3 μm, 2 mm × 100 mm) (manufactured by Intakt) · Column temperature: 40 °C · Mobile phase A: Methanol · Mobile phase B: 10 mM ammonium acetate aqueous solution / methanol (80 / 20) · Flow rate: 0.3 mL / min · Sample injection volume: 0.8 μL · Gradient conditions: 0 min to 1 min: A 60% → 4 min to 5 min: A 80% → 9 min to 16 min: A 98% → 16.1 min to 21 min: A 60% · Detector: MS · Ion source: ESI (±) · Source temperature: 140 °C · Desolvation temperature: 600 °C · Desolvation gas flow rate: 1000 L / h · Sample adjustment conditions: Dilute 1000 times with methanol

[0126] <HPLC measurement conditions for alkyl hydroxy ether acetic acid (salt) (A)> Equipment: Liquid chromatograph (manufactured by Shimadzu Corporation) Detector: Differential refractive index detector Column: CAPCELL PAK C18 SG 120S5 (inner diameter 4.6 nm, length 25 cm, manufactured by Osaka Soda Co., Ltd.) Column temperature: 40 °C Eluent: A mixture of 0.02 mol / L phosphoric acid, 0.01 mol / L sodium dihydrogen phosphate solution, and acetonitrile [53:47 (volume ratio)] Flow rate: 0.8 mL / min Sample concentration: 8 mg / mL Sample injection volume: 25 μL Retention time of alkyl hydroxy ether acetic acid (salt) (A): 19.0 min ~ 22.5 min

[0127] <Examples 1-6 and Comparative Example 1> The surfactant-containing powder 1 obtained in Manufacturing Example 1, the surfactant-containing powder 2 obtained in Manufacturing Example 2, and deionized water were mixed in the proportions (by weight) shown in Table 1 to prepare surfactant compositions 1 to 6 of the present invention and surfactant composition 1' for comparison. More specifically, surfactant powder 1 obtained in Manufacturing Example 1 and surfactant powder 2 obtained in Manufacturing Example 2 were filled into a 50 mL spiral tube, deionized water was added, and the mixture was stirred with a stirrer until all components became homogeneous, thereby preparing surfactant compositions 1 to 6 of the present invention and surfactant composition 1' for comparison. The effective ingredient concentration of surfactant compositions 1 to 6 of the present invention and surfactant composition 1' for comparison is 29% by weight.

[0128] <Calculation method for peak area ratio of compound (I) / petroleum ether> Using surfactant compositions 1 to 6 of the present invention and surfactant composition 1' for comparison as samples, the peak area of ​​petroleum ether and the peak area of ​​compound (I) were determined by gas chromatography conforming to JIS K8593 for petroleum ether. The gas chromatography method described above is as described in the <Determination Method by Gas Chromatography> section below.

[0129] <Determination Method by Gas Chromatography> (Sample preparation method) Place 10g of sample into a 100mL spiral tube, add 5mL of ethanol (manufactured by Fujifilm and Koden Chemical Co., Ltd.) and 10mL of petroleum ether (manufactured by Fujifilm and Koden Chemical Co., Ltd., conforming to JIS K8593). Add a stir bar and stir at 500rpm for 1 minute at room temperature. Let stand for 10 minutes, and collect the upper layer as the sample. Using the collected samples, the peak area of ​​petroleum ether and the peak area of ​​compound (I) were determined according to the gas chromatography determination conditions described later.

[0130] (Determination conditions by gas chromatography) Apparatus: High-performance general-purpose gas chromatograph (manufactured by Shimadzu Corporation, GC-2014) Column: Ultra2 (manufactured by GL Science Co., Ltd., inner diameter: 0.2 mm, length: 25 m, film thickness: 0.11 μm) Carrier gas: Helium Injector temperature: 280℃ Detector temperature: 310℃ Temperature program: Increase the temperature from 50℃ to 200℃ at a rate of 5℃ / min, then increase it to 280℃ at a rate of 10℃ / min. Sample injection volume: 10 μL Detector: Flame Ionization Detector (FID) Retention time of compound (I): 10–17 minutes Retention time of petroleum ether: 1.4~1.8 minutes

[0131] The peak area ratio of compound (I) to petroleum ether (in %) was calculated using the following formula from the measured peak areas of petroleum ether and compound (I). The results are shown in the "Peak Area Ratio of Compound (I) to Petroleum Ether" column of Table 1. Peak area ratio of compound (I) / petroleum ether = (peak area of ​​compound (I) × 100) / peak area of ​​petroleum ether

[0132] <Foam Fineness> Surfactant compositions 1 to 6 of the present invention and surfactant composition 1' for comparison were diluted with hard water with a hardness of 300 ppm (calcium oxide equivalent) to obtain a diluted solution with an active ingredient concentration of 1% by weight. The diluted solution was foamed at 8000 rpm for 1 minute using a dynamic foam analyzer DFA100 (manufactured by KRUSS Corporation), and then allowed to stand for 1 minute. The size of the foam after standing was measured using the dynamic foam analyzer DFA100 (manufactured by KRUSS Corporation). The measured foam size (unit: μm) was recorded. 2 The details are shown in the "Foam Fineness" column of Table 1. Smaller foam sizes indicate finer foam.

[0133] [Table 1]

[0134] As can be seen from the results in Table 1, the surfactant compositions 1 to 6 of the present invention exhibit superior foam fineness compared to the comparative surfactant composition 1'.

[0135] <Examples 7-15 and Comparative Examples 2-3> Surfactant compositions 1 to 6 of the present invention and surfactant composition 1' for comparison were mixed with any other ingredients described below in the proportions (by weight) shown in Tables 2 and 3 to prepare the cleaning agents (shampoos, pump-foamer facial cleansers, and cream facial cleansers) of the present invention in Examples 7 to 15 and the comparative cleaning agents (shampoos) for Comparative Examples 2 and 3. In Tables 2 and 3, the amount of water is listed as "remaining portion," which means that water is mixed in such a way that the total weight of the surfactant compositions and any other ingredients including water (the total weight of the cleaning agent) is 100% by weight.

[0136] <Foam Durability> The cleaning agents of the present invention from Examples 7 to 15 and the comparative cleaning agents from Comparative Examples 2 to 3 were diluted with deionized water to obtain a diluted solution with an effective ingredient concentration of 1% by weight. The diluted solution was foamed at 8000 rpm for 1 minute using a dynamic foam analyzer DFA100 (manufactured by KRUSS Corporation), and then allowed to stand for 1 minute. The foam size after 1 minute of standing was measured using the dynamic foam analyzer DFA100 (manufactured by KRUSS Corporation) and taken as the initial foam size. Furthermore, the foam size after a further standing for 180 seconds following the 1 minute standing was measured using the dynamic foam analyzer DFA100 (manufactured by KRUSS Corporation) and taken as the foam size after 180 seconds. Foam durability is evaluated by calculating the relative value of the foam size after 180 seconds relative to the initial foam size using the following formula. The calculated relative values ​​(in %) of the foam size after 180 seconds relative to the initial foam size are shown in the "Foam Durability" column of Tables 2 and 3. A smaller relative value indicates better foam durability. The relative value of the foam size after 180 seconds to the initial foam size = (foam size after 180 seconds × 100) / initial foam size Generally, foam size tends to increase over time as the foams merge together. However, since the cleaning agent of the present invention contains the surfactant composition of the present invention with a peak area ratio of compound (I) / petroleum ether within the above range, it is believed that the foam size will not easily increase over time.

[0137] <Irritating Odor> Ten Japanese men and women aged 30 to 57 years were evaluated for the irritant odor of the cleaning agents of the present invention (Examples 7-15) and the comparative cleaning agents (Examples 2-3). Specifically, when the cleaning agent was a shampoo, 2g of shampoo was foamed and applied to the hair. When the cleaning agent was a facial cleanser, 1g of facial cleanser was foamed and applied to the face. The intensity of the irritant odor during washing was evaluated using the following evaluation criteria on a scale of 1 to 5 (5 stages). The total scores of the ten participants were calculated for the evaluation of the irritant odor. The total scores of the ten participants are shown in the "Irritant Odor" column of Tables 2 and 3. (Evaluation criteria for pungent odors) 5 stars: No pungent odor detected at all 4 points: Almost no pungent odor 3 points: Slightly pungent odor 2 points: I sensed a strong, pungent odor. 1 point: I smelled a very strong, pungent odor.

[0138] [Table 2]

[0139] [Table 3]

[0140] In addition, the following substances may be used as any other components listed in Tables 2 to 3.

[0141] <Any other ingredients> • 26% by weight aqueous solution of polyoxyethylene (average degree of polymerization 2) sodium lauryl ether sulfate [Trade name: BEAULIGHT NA-25S (ビューライト NA-25S) {manufactured by Sanyo Chemical Industry Co., Ltd. (BEAULIGHT is a registered trademark of Sanyo Chemical Industry Co., Ltd.)}] • 28% by weight aqueous solution of polyoxyethylene (average degree of polymerization 4) sodium lauryl ether acetate [trade name: BEAULIGHT LCA-25N (ビューライトLCA-25N) {manufactured by Sanyo Chemical Industry Co., Ltd.}] • 29% by weight aqueous solution of N-coconut oil fatty acid acyl-L-glutamate sodium [trade name: Plantapon AminoSCG-L {manufactured by BASF Corporation (Plantapon is a registered trademark of Cognis IP Management GmbH)}] · 30 wt% aqueous solution of triethanolamine lauroyl-L-glutamate [Trade name: AMISOFT LT-12 (アミソフト LT-12) {Manufactured by Ajinomoto Healthy Supply Co., Inc. (味の素ヘルシーサプライ(株)) (AMISOFT is a registered trademark of Ajinomoto Co., Inc. (味の素(株)))}] · 30 wt% aqueous solution of sodium N-lauroylsarcosinate [Trade name: SOYPON SLE (ソイポン SLE) {Manufactured by Kawaken Fine Chemicals Co., Ltd (川研ファインケミカル(株)) (SOYPON is a registered trademark of Kawaken Fine Chemicals Co., Ltd)}] · Potassium N-coconut oil fatty acyl glycine [Trade name: AMILITE GCK-11 (アミライト GCK-11) {Manufactured by Ajinomoto Healthy Supply Co., Inc. (AMILITE is a registered trademark of Ajinomoto Co., Inc.)}] · 37 wt% aqueous solution of sodium olefin (C14-C16) sulfonate [Trade name: LIPOLAN LJ-441 (リポランLJ-441) {Manufactured by Lion Corporation (ライオン(株)) (LIPOLAN is a registered trademark of Lion Specialty Chemicals Co., Ltd (ライオン・スペシャリティケミカルズ(株)))}] · 30 wt% aqueous solution of cocoamidopropyl betaine [Trade name: LEBON HC-30W (レボンHC-30W) {Manufactured by Sanyo Chemical Industries, Ltd.}] · 43 wt% aqueous solution of 2-coconut oil fatty acid-N-hydroxyethyl-N-hydroxyethyl imidazolinium betaine [Trade name: LEBON CIB (レボンCIB) {Manufactured by Sanyo Chemical Industries, Ltd.}] · Lauric acid [Trade name: NAA-122 {Manufactured by NOF Corporation (日油(株)) (NAA is a registered trademark of NOF Corporation)}] · Stearic acid [Trade name: NAA-172 {Manufactured by NOF Corporation}] · Palmitic acid [Trade name: NAA-160 {Manufactured by NOF Corporation}] · 1,3-Butanediol [Manufactured by NACALAI TESQUE, INC. (ナカライテスク(株))] · Glycerol [Trade name: Concentrated glycerin for cosmetics (化粧品用濃グリセリン) {Manufactured by Kao Corporation (花王(株))}] • Polyquaternium-22 (40% by weight aqueous solution) [Trade name: MERQUAT280 {manufactured by Lubrizol Corporation (MERQUAT is a registered trademark of Lubrizol Advanced Materials Co., Ltd.)}] • Polyquaternium-7 (9% by weight aqueous solution) [Trade name: MERQUAT550 (manufactured by Lubrizol)] • Polyquaternium-10 [Trade name: Sensomer 10M Polymer (manufactured by Lubrizol)] • Polydimethylsiloxane [Trade name: KF-96A-2CS {Manufactured by Shin-Etsu Chemical Industry Co., Ltd.}] • Vitamin E [Trade Name: D-α-Tocopherol {Manufactured by Tokyo Chemical Industry Co., Ltd.}] ·EDTA-2Na [Trade name: 2NA (EDTA・2Na) {Manufactured by Dojin Chemical Research Institute Co., Ltd.}] • Coconut oil fatty acid N-methylethanolamide [Trade name: AMINON C-11S (アミノーンC-11S) {Manufactured by Kao Corporation (AMINON is a registered trademark of Kao Corporation)}] • PEG-160 triisostearic acid (Sorbitan) [Trade name: RHEODOL TW-IS399C (レオドールTW-IS399C) {Manufactured by Kao Corporation (RHEODOL is a registered trademark of Kao Corporation)}] • PEG-190 distearate [Trade name: EMULMIN 862 (エマルミン862) {Manufactured by Sanyo Chemical Industries, Ltd. (EMULMIN is a registered trademark of Sanyo Chemical Industries, Ltd.)}] • Ethylene distearate [Trade name: EMALEX EG-di-S {manufactured by Nihon Emulsion Co., Ltd. (EMALEX is a registered trademark of Nihon Emulsion Co., Ltd.)}] • Menthol [Trade name: l-Menthol (l-Mentole) {Manufactured by Fujifilm Wako Pure Chemical Industries Co., Ltd.}] Citric acid [manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.] Potassium hydroxide [manufactured by NACALAI TESQUE, INC.]

[0142] As shown in Table 2, compared with the shampoos of Comparative Examples 2 and 3, the shampoos of Examples 7 to 12 exhibited superior foam persistence and suppressed irritating odors. Furthermore, as shown in Table 3, the pump-type foaming facial cleanser of Example 13 and the cream-type facial cleansers of Examples 14 and 15 all demonstrated excellent foam persistence and suppressed irritating odors. Industrial applicability

[0143] The surfactant composition of the present invention exhibits excellent foam fineness. Furthermore, the cleaning agent of the present invention contains the surfactant composition of the present invention, thus exhibiting excellent foam persistence and suppressed irritating odor, making it suitable for shampoos and facial cleansers, etc. Further, the cleaning agent of the present invention may be used as a household cleaning agent (laundry detergent, dishwashing detergent, etc.) and an industrial cleaning agent (cleaning agent for metals, precision parts, etc.).

Claims

1. A surfactant composition, wherein, The surfactant composition contains: The alkyl hydroxy ether acetic acid (salt) (A) and the following general formula (1) are shown below. Compound (I) detected by gas chromatography of petroleum ether conforming to JIS K8593 with a retention time between 10 and 17 minutes. The peak area of ​​compound (I) as determined by the gas chromatography method is 0.02% to 50% of the peak area of ​​petroleum ether. R 1 -CH(OH)-CH2-OCH2COOM 1 (1) In general formula (1), R 1 M represents an alkyl group with 8 to 12 carbon atoms. 1 It represents a hydrogen atom, a sodium atom, a potassium atom, or triethanolamine.

2. A cleaning agent, wherein, The cleaning agent comprises the surfactant composition of claim 1.

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