Cleaning agent

Abstract

To provide a detergent with excellent foam volume while having preferable viscosity as a hair cosmetic.SOLUTION: A detergent contains (A) anionic surfactant other than sulfate-type surfactant, (B) amphoteric surfactant, and (C) unneutralized higher fatty acid with a carbon number of 10-18, where the content of the component (A) is 6.0 mass% or more and 12 mass% or less with respect to the total amount of the detergent, the content of the component (B) is 3.0 mass% or more and 11 mass% or less with respect to the total amount of the detergent, the content of the component (C) is 0.1 mass% or more and 1.0 mass% or less with respect to the total amount of the detergent, and the content of sulfate-type surfactant is less than 0.1 mass% with respect to the total amount of the detergent.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a cleaning agent. More specifically, it relates to a hair cleaning agent.

Background Art

[0002] Conventionally, as a foaming cleaning agent, a cleaning agent containing a sulfate-type anionic surfactant has been used. Such a cleaning agent is likely to impart viscosity as a hair cosmetic and is excellent in the amount of foam. However, there is a risk of causing a feeling of irritation to the skin and discomfort of the skin after use (tight feeling, dry feeling).

[0003] [[ID=I6]]Therefore, a cleaning agent containing an anionic surfactant other than a sulfate-type surfactant, having a viscosity suitable as a hair cosmetic, and excellent in the amount of foam has been desired. For example, in Patent Document 1, in an aqueous medium, at least 1) a sulfonate mixture containing a) an internal olefin sulfonate (A) having 16 carbon atoms and b) an internal olefin sulfonate (B) having 18 carbon atoms, and the mass ratio (A / B) of component (A) to component (B) present in the sulfonate mixture is from 75 / 25 to 90 / 10, preferably from 80 / 20 to 85 / 15, and the mass ratio of the hydroxy-type compound present in the internal olefin sulfonates (A) and (B) to the olefin-type compound present in the internal olefin sulfonates (A) and (B) is from 75 / 25 to 100 / 0, preferably from 80 / 20 to 95 / 5, a sulfonate mixture, and 2) a composition containing at least one foam enhancing agent or foam promoting agent has been proposed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] However, the composition described in Patent Document 1 requires the use of a specific sulfonate mixture as an anionic surfactant, which limits the formulation. Therefore, there is still a need for the development of a cleansing agent that has suitable viscosity for hair cosmetics and excellent foaming properties while keeping the amount of sulfate-type surfactant low.

[0006] The present inventors conducted diligent studies to solve the above problems and, as a result, found that the above problems can be solved by simultaneously incorporating (A) anionic surfactants other than sulfate surfactants, (B) amphoteric surfactants, and (C) unneutralized higher fatty acids having 10 to 18 carbon atoms into a detergent while suppressing the amount of sulfate-type surfactants, and further adjusting the content of components (A) to (C), thereby completing the present invention.

[0007] The present invention provides the following: [1] (A) Anionic surfactants other than sulfate-type surfactants, (B) Amphoteric surfactants, and (C) Unneutralized higher fatty acids with 10 to 18 carbon atoms, A cleaning agent containing, The content of component (A) is 6.0% by mass or more and 12% by mass or less, relative to the total amount of the detergent. The content of component (B) is 3.0% by mass or more and 11% by mass or less, relative to the total amount of the detergent. The content of component (C) is 0.1% by mass or more and 1.0% by mass or less, relative to the total amount of the detergent. The content of sulfate-type surfactant is less than 0.1% by mass relative to the total amount of the detergent. Cleansing agent. [2] The detergent according to [1], wherein the anionic surfactant other than the sulfate-type surfactant (A) comprises at least one selected from the group consisting of acyl amino acid-type surfactants, acyl taurine-type surfactants, alkyl glycol carboxylic acid-type surfactants, and sulfonate-type surfactants. [3] The cleansing agent according to [1] or [2], wherein the (B) amphoteric surfactant comprises at least one selected from the group consisting of alkyl betaine, cocamidopropyl betaine, and imidazolinium betaine. [4] The detergent according to any one of [1] to [3], wherein the unneutralized higher fatty acid having 10 to 18 carbon atoms in (C) is selected from the group consisting of capric acid, lauric acid, myristic acid, palmitic acid, isostearic acid, and stearic acid. [5] (D) A cleansing agent according to any one of [1] to [4], further comprising cation-modified galactomannan. [6] The detergent according to [5], wherein the content of component (D) is 0.1% by mass or more and 1.0% by mass or less with respect to the total amount of the detergent. [7] A hair cleansing product, as described in any of [1] to [6].

[0008] According to the present invention, a cleansing agent is provided that has a viscosity suitable for use as a hair cosmetic while also exhibiting excellent foaming properties. [Modes for carrying out the invention]

[0009] [Cleaning agent] The cleansing composition according to the present invention contains (A) an anionic surfactant other than sulfate-type surfactants, (B) an amphoteric surfactant, and (C) an unneutralized higher fatty acid having 10 to 18 carbon atoms as essential components. Furthermore, the cleansing composition according to the present invention may also contain (D) cationic modified galactomannan, cationic polymers, nonionic surfactants, and other components, depending on the purpose. In addition, the content of sulfate-type surfactants in the cleansing composition according to the present invention is less than 0.1% by mass, and more preferably less than 0.01% by mass, based on the total amount of the cleansing composition. It is even more preferable that sulfate-type surfactants are substantially absent from the cleansing composition. The cleansing composition according to the present invention has viscosity suitable for hair cosmetics and excellent foam production while keeping the amount of sulfate-type surfactants low.

[0010] The viscosity of the cleansing agent according to the present invention at 30°C is preferably 100 mPa·s to 30,000 mPa·s, more preferably 200 mPa·s to 20,000 mPa·s, and even more preferably 300 mPa·s to 15,000 mPa·s. If the viscosity of the cleansing agent is within the above range, it is suitable because it has excellent usability as a hair cleansing agent (shampoo). The viscosity of the cleaning agent was measured at a temperature of 30°C, using a B-type viscometer, rotor No. 2, 3, or 4, and a rotation speed of 12 rpm. The value was calculated from the reading one minute after the start of rotation.

[0011] ((A) Anionic surfactants other than sulfate-type surfactants) Other than sulfate-type surfactants, anionic surfactants commonly used as ingredients in detergents can be used. Such anionic surfactants are not particularly limited, but examples include acyl amino acid-type surfactants, acyl taurine-type surfactants, alkyl glycol carboxylic acid-type surfactants, and sulfonate-type surfactants. For acyl amino acid-type surfactants and acyl taurine-type surfactants, fatty acids with 8 to 22 carbon atoms can be selected as the acyl group. Examples of fatty acids with 8 to 22 carbon atoms include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, arachidic acid, and behenic acid. Furthermore, the alkyl group of alkyl glycol carboxylic acid-type surfactants preferably has 8 to 22 carbon atoms, and more preferably 10 to 20.

[0012] Examples of anionic surfactants as described above include acyl amino acid salts, acyl methyl taurate salts, and alkyl ether phosphate salts. Specifically, examples include potassium cocoyl glutamate, sodium cocoyl glutamate, sodium cocoyl taurate, sodium cocoyl methyl taurate, sodium cocoyl methyl taurate, sodium lauroyl methyl taurate, sodium lauryl glycol acetate, cocoyl methyl taurate triethanolamine, palm oil fatty acid ethyl taurate triethanolamine, magnesium cocoyl taurate, magnesium cocoyl methyl taurate, magnesium lauroyl taurate, magnesium lauroyl methyl taurate, and sodium olefin (C14-16) sulfonate.

[0013] The content of the anionic surfactant is 6.0% by mass or more and 12% by mass or less, preferably 6.5% by mass or more and 11.5% by mass or less, and more preferably 7.0% by mass or more and 11% by mass or less, based on the total amount of the detergent. It is preferable that the content of the anionic surfactant is within the above numerical range because the amount of foam increases when the detergent is used.

[0014] ((B) Amphoteric surfactant) The amphoteric surfactant can be any amphoteric surfactant commonly used as a material for detergents. The amphoteric surfactant is not particularly limited, but examples include betaine-based surfactants such as alkyl betaine, cocamidopropyl betaine, imidazolinium betaine, lauryldimethylaminoacetic acid betaine, amide betaine, and sulfobetaine; and imidazoline-based amphoteric surfactants such as 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium and 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt. Among these, betaine-based surfactants are preferred, and alkyl betaine, cocamidopropyl betaine, and imidazolinium betaine are more preferred.

[0015] The content of the amphoteric surfactant is 3.0% by mass or more and 11% by mass or less, preferably 4% by mass or more and 10.5% by mass or less, more preferably 5% by mass or more and 10% by mass or less, based on the total amount of the cleaning agent. If the content of the amphoteric surfactant is within the above numerical range, the amount of foam increases when the cleaning agent is used, which is preferable.

[0016] The ratio of the content of component (A) to the content of component (B) in the cleaning agent is preferably 0.1 or more and 5.0 or less, more preferably 0.3 or more and 4.0 or less, still more preferably 0.5 or more and 3.5 or less. If the ratio of the content of component (A) to the content of component (B) is within the above numerical range, the amount of foam increases when the cleaning agent is used, which is preferable.

[0017] ((C) Higher fatty acid) In the cleaning agent according to the present invention, higher fatty acids having 10 to 18 carbon atoms are contained in an unneutralized state. Conventionally, in order to exhibit detergency, at least a part of the higher fatty acids in the cleaning agent were contained in a neutralized state as salts. However, in the neutralized state, metal soaps are generated when the cleaning agent is washed away with water, and when used on the skin, it causes a feeling of roughness and dryness. Also, when used on hair, it is very harsh and the usability becomes extremely poor. However, unexpectedly, it has been found that the presence of higher fatty acids having 10 to 18 carbon atoms in an unneutralized state in the cleaning agent makes it possible to increase the viscosity of the cleaning agent without using a thickener. As a result, the inhibition of foaming due to the conventional thickener formulation is eliminated, and it has become possible to achieve both thickening and foaming.

[0018] e The higher fatty acid having 10 to 18 carbon atoms may be linear, branched, saturated, or unsaturated. Specifically, examples of the higher fatty acid having 10 to 18 carbon atoms include capric acid, lauric acid, myristic acid, palmitic acid, isostearic acid, and stearic acid. One or a combination of two or more of these may be blended. In particular, it is preferable to blend at least lauric acid among these.

[0019] The content of the higher fatty acid having 10 to 18 carbon atoms is 0.1% by mass or more and 1.0% by mass or less, preferably 0.2% by mass or more and 0.9% by mass or less, and more preferably 0.3% by mass or more and 0.8% by mass or less, based on the total amount of the detergent. If the content of the higher fatty acid is within the above numerical range, it is preferable because the amount of foam increases when using the detergent.

[0020] ((D) Cationically modified galactomannan) By blending cationically modified galactomannan into the detergent according to the present invention, the amount of foam can be increased when using the detergent. Cationically modified galactomannan is a substance in which a part of the hydroxyl groups contained in galactomannan is substituted with a quaternary nitrogen-containing group. As the quaternary nitrogen-containing group, a group represented by the following general formula is preferable.

[0021] [Chemical formula] [In the formula, R1 and R2 each independently represent an alkyl group having 1 to 3 carbon atoms, R3 represents an alkyl group having 1 to 24 carbon atoms, and X

[0022] , , - represents an anion. n represents n = 0 or n = 1 to 30. When n = 1 to 30, (R4O) n is a polymer residue of an alkylene oxide having 2 to 4 carbon atoms, and represents a polyalkylene glycol chain composed of a single alkylene oxide and / or a polyalkylene glycol chain composed of two or more kinds of alkylene oxides. ]

[0022] In the above quaternary nitrogen-containing group, specific examples of R1 and R2 include methyl, ethyl, and propyl. Specific examples of R3 as an alkyl group having 1 to 24 carbon atoms include the same ones as R1 and R2 above, as well as octyl, decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, docosyl, etc. Specific examples of R4O include ethoxy, propoxy, and butoxy. Also, specific examples of the anion X - include halogen ions such as chlorine ion, bromine ion, and iodine ion, and also methyl sulfate ion, ethyl sulfate ion, acetate ion, etc.

[0023] Examples of galactomannans that constitute the cation-modified galactomannan used in the present invention include guar gum, locust bean gum, tara gum, and fenugreek gum. Guar gum, locust bean gum, tara gum, and fenugreek gum are nonionic polysaccharides in which galactose units are attached as side chains to a main chain consisting of mannose as a constituent unit. The composition ratio of mannose to galactose is 2:1 for guar gum, 4:1 for locust bean gum, 3:1 for tara gum, and 1:1 for fenugreek gum. In the present invention, one or more of these can be arbitrarily selected and used.

[0024] The introduction of the quaternary nitrogen-containing group into galactomannan can be carried out according to conventionally known methods. For example, it can be produced by reacting galactomannan with a glycidyltrialkylammonium salt, a 3-halogeno-2-hydroxypropyltrialkylammonium salt, or the like. As the cation-modified galactomannan, guar hydroxypropyltrimonium chloride is preferably used.

[0025] The cation-modified galactomannan of the present invention can be a commercially available product. Examples of commercially available products include, for example, Catinal CG-100, Catinal CG-100S, and Catinal CLB-100 (all manufactured by Toho Chemical Industry Co., Ltd.).

[0026] The content of cation-modified galactomannan is preferably 0.1% to 1.0% by mass, more preferably 0.3% to 0.9% by mass, and even more preferably 0.4% to 0.8% by mass, relative to the total amount of the detergent. It is preferable that the content of higher fatty acids is within the above numerical range because it increases the amount of foam when the detergent is used.

[0027] (cationic polymer) The cleaning agent according to the present invention may further contain cationic polymers other than the cationic-modified galactomannan described above. The cationic polymer is not particularly limited, but it is preferably a hydrophilic polymer having an amino group or a quaternary ammonium group. Examples of such polymers include those obtained by adding substituents having an amino group or a quaternary ammonium group to a hydrophilic polymer such as cellulose, or copolymers that include acrylamide or diallyl dialkyl quaternary ammonium salt having a cationic group in the side chain as polymerization units. Of these, copolymers that include diallyl dialkyl quaternary ammonium salt as polymerization units are preferred, copolymers that include diallyl dialkyl quaternary ammonium salt and acrylamide as polymerization units are more preferred, and copolymers that include diallyl dialkyl quaternary ammonium salt, acrylamide and acrylic acid as polymerization units are even more preferred.

[0028] Examples of cationic polymers include cationized cellulose, cationized starch, diallyl dialkyl quaternary ammonium salt / acrylamide copolymer, and diallyl dialkyl quaternary ammonium salt / acrylamide / acrylic acid copolymer.

[0029] The content of the cationic polymer is preferably 0.05% by mass or more and 1.0% by mass or less, and more preferably 0.1% by mass or more and 0.5% by mass or less, based on the total amount of the detergent.

[0030] (Nonionic surfactant) As the nonionic surfactant, nonionic surfactants commonly used as ingredients in detergents can be used. Examples of nonionic surfactants include fatty acid ester type nonionic surfactants such as sucrose fatty acid esters, ethylene glycol fatty acid esters, polyethylene glycol fatty acid esters, propylene glycol fatty acid esters, polypropylene glycol fatty acid esters, glycerin fatty acid esters, polyglycerin fatty acid esters, and sorbitan fatty acid esters. One or more of these may be blended together.

[0031] The content of the nonionic surfactant is preferably 0.1% by mass or more and 5.0% by mass or less, and more preferably 0.2% by mass or more and 2.0% by mass or less, based on the total amount of the detergent.

[0032] (water) While there are no particular limitations on the type of water used in the cleansing agent, water used in cosmetics, quasi-drugs, etc., can be used. For example, purified water, deionized water, tap water, etc., can be used.

[0033] The water content can be adjusted as appropriate depending on the content of other components. For example, the water content is preferably 10% to 90% by mass, and more preferably 20% to 85% by mass, relative to the total amount of the detergent.

[0034] (Other ingredients) The cleansing agent according to the present invention may contain, in addition to the above-mentioned components, components used in conventionally known cleansing agents. Other components include the following examples of powder components, liquid oils and fats, solid oils and fats, waxes, hydrocarbon oils, synthetic ester oils, silicone oils, water-soluble polymers, thickeners, UV absorbers, metal ion chelating agents, lower alcohols, monosaccharides, oligosaccharides, amino acids, organic amines, polymer emulsions, pH adjusters, antioxidants, preservatives, anti-inflammatory agents, whitening agents, various extracts, activators, blood circulation promoters, anti-seborrheic agents, and anti-inflammatory agents. Other components may be further formulated by adding one or more of the following components, as long as they achieve the effects of the present invention.

[0035] Examples of powder components include inorganic powders (e.g., talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, rose mica, biotite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, tungstate metal salts, magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate (calcined gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, and metal soaps (e.g., zinc myristate). (e.g., calcium palmitate, aluminum stearate), boron nitride, etc.); organic powders (e.g., polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, styrene-acrylic acid copolymer resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, cellulose powder, etc.); inorganic white pigments (e.g., titanium dioxide, zinc oxide, etc.); inorganic red pigments (e.g., iron oxide (red iron oxide), iron titanate, etc.); inorganic brown pigments (e.g., γ-iron oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide, yellow ochre, etc.); inorganic Black pigments (e.g., black iron oxide, lower titanium oxide, etc.); inorganic purple pigments (e.g., mango violet, cobalt violet, etc.); inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate, etc.); inorganic blue pigments (e.g., ultramarine, Prussian blue, etc.); pearl pigments (e.g., titanium oxide coated mica, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, colored titanium oxide coated mica, bismuth oxychloride, fish scale foil, etc.); metal powder pigments (e.g., aluminum powder, copper powder, etc.); zirconium, ba Examples include organic pigments such as aluminum lake or lium (e.g., organic pigments such as Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Orange 204, Yellow 205, Yellow 401, and Blue 404, as well as Red 3, Red 104, Red 106, Red 227, Red 230, Red 401, Red 505, Orange 205, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Green 3, and Blue 1); and natural pigments (e.g., chlorophyll, β-carotene, etc.).

[0036] Examples of liquid oils include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, elm oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, cinnamon oil, Japanese tuni oil, jojoba oil, wheat germ oil, and triglycerin.

[0037] Examples of solid fats and oils include cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, sheep fat, hydrogenated beef tallow, palm kernel oil, lard, beef bone fat, Japanese wax kernel oil, hydrogenated oil, beef tallow, Japanese wax, and hydrogenated castor oil.

[0038] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, privet wax, whale wax, montane wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether.

[0039] Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0040] Synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glyceryl di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate Glycerin tri-2-ethylhexanoate, glycerin trioctanoate, glycerin triisopalmitate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glycerin trimyristate, glyceride tri-2-heptylundecanoate, methyl castor oil fatty acid ester, oleyl oleate, acetoglyceride, 2-heptyl palmitate Examples include undecyl adipate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipate, diisopropyl sebacate, 2-ethylhexyl succinate, and triethyl citrate.

[0041] Examples of silicone oils include linear polysiloxanes (e.g., dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, etc.), cyclic polysiloxanes (e.g., octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, etc.), silicone resins forming a three-dimensional network structure, silicone rubber, and various modified polysiloxanes (amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc.).

[0042] Examples of water-soluble polymers include starch-based polymers (e.g., carboxymethyl starch, methylhydroxypropyl starch, etc.); cellulose-based polymers (methylcellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, carboxymethylcellulose, sodium carboxymethylcellulose, crystalline cellulose, cellulose powder, etc.); and alginate-based polymers (e.g., sodium alginate, propylene glycol alginate ester, etc.).

[0043] Examples of thickening agents include gum arabic, carrageenan, karaya gum, tragacanth gum, carob gum, quince seed (marmelo), casein, dextrin, gelatin, sodium pectinate, sodium araginate, methylcellulose, ethylcellulose, CMC, hydroxyethylcellulose, hydroxypropylcellulose, PVA, PVM, PVP, sodium polyacrylate, carboxyvinyl polymer, locust bean gum, guar gum, tamarind gum, dialkyldimethylammonium sulfate cellulose, xanthan gum, aluminum magnesium silicate, bentonite, hectorite, aluminum magnesium silicate (bee gum), laponite, and anhydrous silicic acid.

[0044] Examples of UV absorbers include benzoic acid-based UV absorbers (e.g., para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerol ester, N,N-dipropoxy PABA ethyl ester, N,N-diethoxy PABA ethyl ester, N,N-dimethyl PABA ethyl ester, N,N-dimethyl PABA butyl ester, N,N-dimethyl PABA ethyl ester, etc.); anthranilic acid-based UV absorbers (e.g., homomenthyl-N-acetylantranilate, etc.); and salicylic acid-based UV absorbers (e.g., amyl salicylate, etc.). (e.g., menthyl salicylate, homomenthyl salicylate, octyl salicylate, phenyl salicylate, benzyl salicylate, p-isopropanolphenyl salicylate, etc.); cinnamic acid-based UV absorbers (e.g., octyl cinnamate, ethyl-4-isopropyl cinnamate, methyl-2,5-diisopropyl cinnamate, ethyl-2,4-diisopropyl cinnamate, methyl-2,4-diisopropyl cinnamate, propyl-p-methoxy cinnamate, isopropyl-p-methoxy cinnamate, isoamyl-p-methoxy) Cycinnamate, octyl-p-methoxycinnamate (2-ethylhexyl-p-methoxycinnamate), 2-ethoxyethyl-p-methoxycinnamate, cyclohexyl-p-methoxycinnamate, ethyl-α-cyano-β-phenylcinnamate, 2-ethylhexyl-α-cyano-β-phenylcinnamate, glyceryl mono-2-ethylhexanoyl-diparamethoxycinnamate, etc.); benzophenone-based UV absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone) Non, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-4'-methylbenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 4-phenylbenzophenone, 2-ethylhexyl-4'-phenylbenzophenone-2-carboxylate, 2-hydroxy-4-n-octoxybenzophenone, 4-hydroxy-3-carboxybenzophenone, etc.Examples include 3-(4'-methylbenzylidene)-d,l-camphor, 3-benzylidene-d,l-camphor; 2-phenyl-5-methylbenzoxazole; 2,2'-hydroxy-5-methylphenylbenzotriazole; 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole; 2-(2'-hydroxy-5'-methylphenylbenzotriazole); dibenzarazine; dianisioylmethane; 4-methoxy-4'-t-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, etc.

[0045] Examples of metal ion chelating agents include 1-hydroxyethane-1,1-diphosphonic acid, tetrasodium 1-hydroxyethane-1,1-diphosphonic acid, disodium edetate, trisodium edetate, tetrasodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetate, and trisodium ethylenediaminehydroxyethyl triacetate.

[0046] Examples of lower alcohols include ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol.

[0047] Examples of monosaccharides include trioses (e.g., D-glyceryl aldehyde, dihydroxyacetone, etc.); tetraoses (e.g., D-erythritol, D-erythritol, D-threose, erythritol, etc.); pentoses (e.g., L-arabinose, D-xylose, L-lyxose, D-arabinose, D-ribose, D-ribulose, D-xylulose, L-xylulose, etc.); hexoses (e.g., D-glucose, D-talose, D-busicose, D-galactose, D-fructose, L-galactose, L- Examples include: -mannose, D-tagatose, etc.; heptose (e.g., aldoheptose, hepros, etc.); octose (e.g., octulose, etc.); deoxy sugars (e.g., 2-deoxy-D-ribose, 6-deoxy-L-galactose, 6-deoxy-L-mannose, etc.); amino sugars (e.g., D-glucosamine, D-galactosamine, sialic acid, aminouronic acid, muramic acid, etc.); uronic acids (e.g., D-glucuronic acid, D-mannuronic acid, L-glucuronic acid, D-galacturonic acid, L-iduronic acid, etc.).

[0048] Examples of oligosaccharides include sucrose, gunthianose, umbelliferose, lactose, planteose, isolichnoses, α,α-trehalose, raffinose, licnoses, unbilicin, stachyose, and vervasocose.

[0049] Examples of amino acids include neutral amino acids (e.g., threonine, cysteine, etc.) and basic amino acids (e.g., hydroxylysine, etc.). Examples of amino acid derivatives include sodium acyl sarcosinate (sodium lauroyl sarcosinate), acyl glutamate, sodium acyl β-alanine, glutathione, and pyrrolidone carboxylic acid.

[0050] Examples of organic amines include monoethanolamine, diethanolamine, triethanolamine, morpholine, triisopropanolamine, 2-amino-2-methyl-1,3-propanediol, and 2-amino-2-methyl-1-propanol.

[0051] Examples of polymer emulsions include acrylic resin emulsion, ethyl polyacrylate emulsion, acrylic resin liquid, polyacrylic alkyl ester emulsion, polyvinyl acetate resin emulsion, and natural rubber latex.

[0052] Examples of pH adjusters include buffers such as lactate-sodium lactate, citrate-sodium citrate, and succinate-sodium succinate. Examples of vitamins include vitamins A, B1, B2, B6, C, E and their derivatives, pantothenic acid and its derivatives, and biotin.

[0053] Examples of antioxidants include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters, sulfites, and bisulfites. Examples of antioxidant auxiliary agents include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, kephalin, hexametaphosphorate, phytic acid, and ethylenediaminetetraacetic acid.

[0054] Other possible ingredients include, for example, preservatives (ethylparaben, butylparaben, etc.); anti-inflammatory agents (for example, glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, salicylic acid derivatives, hinokitiol, zinc oxide, allantoin, etc.); whitening agents (for example, placenta extract, saxifrage extract, arbutin, etc.); various extracts (for example, Phellodendron amurense, Coptis japonica, Lithospermum erythrorhizon, Paeonia lactiflora, Swertia japonica, Birch, Sage, Loquat, Carrot, Aloe vera, Malva sylvestris, Iris ensata, Grape, Coix lacryma-jobi, Luffa gourd, Lily, Saffron, Cnidium officinale, Zingiber officinale, St. John's wort, Ononis sulphureus, Garlic, Chili pepper, Citrus unshiu peel, Angelica acutiloba, Seaweed, etc.), and activators. Examples include: agents (e.g., royal jelly, photosensitizers, cholesterol derivatives, etc.); blood circulation promoters (e.g., nonylic acid valenylamide, benzyl nicotinate, β-butoxyethyl nicotinate, capsaicin, gingerol, cantharis tincture, ichthamol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, trazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); anti-seborrheic agents (e.g., sulfur, thianthol, etc.); and anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.).

[0055] (Application) The cleansing agent according to the present invention can be used for conventionally known cleansing applications, and is particularly suitable for use as a hair cleansing agent. [Examples]

[0056] The present invention will be specifically described based on the following examples, but the present invention is not limited to these examples. Unless otherwise specified, the amounts are expressed in mass percent.

[0057] [Examples 1-15, Comparative Examples 1-9] <Preparation of cleaning solution> The detergents for each example and comparative example were prepared using the formulations shown in Tables 1-3. Note that the proportions of each component in Tables 1-3 are expressed in mass percent.

[0058] <Evaluation of cleaning agents> The viscosity and foam volume of the detergent prepared above were evaluated according to the following criteria.

[0059] [viscosity] <Evaluation Method> Samples in a designated container or in 50-200 mL containers were brought to 30±1°C. A B-type viscometer (VISCOMETER TVB-15M, manufactured by Toki Sangyo Co., Ltd.) was used to measure the viscosity (mPa·s) after 1 minute of rotation at 12 rpm with the rotor (No. 2 or No. 3) placed in the sample. The measurement results are shown in Tables 1-3. A measurement result of 100 mPa·s to 30,000 mPa·s is considered acceptable, and a result of 300 mPa·s to 15,000 mPa·s is considered preferable.

[0060] [Bubble amount] (Evaluation method) Three expert panel members, women in their 30s and 40s who had received training in sensory evaluation and were capable of evaluating according to a set standard, were selected. These three panel members took 1.5 ml of the cleansing agent (shampoo) prepared above, applied it to water-soaked human hair, lathered it for 15 seconds, and evaluated the amount of foam. In addition, the amount of foam was similarly evaluated for a standard shampoo with the following formulation as a control. The amount of foam was evaluated according to the following criteria, and the evaluation results are shown in Tables 1-3. <Standard shampoo formula> Citric acid 0.35% by mass EDTA-2Na 0.06% by mass Sodium benzoate 0.55% by mass TEA laureth sulfate 4.7% by mass Sodium laureth sulfate 11.1% by mass Water Remnant Total 100% by mass <Evaluation Criteria> A: Three panelists answered that the shampoo produced more foam than the standard shampoo. B: Two panelists reported that the shampoo produced more foam than the standard shampoo. C: One panelist reported that the shampoo produced more foam than the standard shampoo. D: Zero panelists reported that the shampoo produced more foam than the standard shampoo.

[0061] [Table 1]

[0062] [Table 2]

[0063] [Table 3]

[0064] From the above results, it can be seen that the cleansing agent according to the present invention has a viscosity suitable for use as a hair cosmetic while also exhibiting excellent foaming properties. Furthermore, considering the results of the comparative example together, it can be seen that the cleansing agent according to the present invention achieves excellent effects by simultaneously incorporating (A) anionic surfactants other than sulfate-type surfactants (sodium laureth sulfate-free), (B) amphoteric surfactants, and (C) unneutralized higher fatty acids having 10 to 18 carbon atoms, and further adjusting the content of components (A) to (C). On the other hand, it can be seen that the foaming properties deteriorate when unneutralized higher fatty acids having 10 to 18 carbon atoms are not included in the cleansing agent.

Claims

1. (A) Anionic surfactants other than sulfate-type surfactants, (B) Amphoteric surfactants, (C) Unneutralized higher fatty acids having 10 to 18 carbon atoms, and (D) Cation-modified galactomannan, A cleaning agent containing, The content of component (A) is 6.0% by mass or more and 12% by mass or less, relative to the total amount of the detergent. The content of component (B) is 5% by mass or more and 11% by mass or less, relative to the total amount of the detergent. The content of component (C) is 0.1% by mass or more and 1.0% by mass or less, relative to the total amount of the detergent. The content of component (D) is 0.4% by mass or more and 1.0% by mass or less, relative to the total amount of the detergent. The content of sulfate-type surfactant is less than 0.1% by mass relative to the total amount of the detergent. A cleansing agent wherein the cleansing agent is a hair cleansing agent.

2. The detergent according to claim 1, wherein the anionic surfactant other than the sulfate-type surfactant (A) comprises at least one selected from the group consisting of acyl amino acid-type surfactants, acyl taurine-type surfactants, alkyl glycol carboxylic acid-type surfactants, and sulfonate-type surfactants.

3. The detergent according to claim 1 or 2, wherein the (B) amphoteric surfactant comprises at least one selected from the group consisting of alkyl betaine, cocamidopropyl betaine, and imidazolinium betaine.

4. The detergent according to any one of claims 1 to 3, wherein the unneutralized higher fatty acid having 10 to 18 carbon atoms (C) comprises at least one selected from the group consisting of capric acid, lauric acid, myristic acid, palmitic acid, isostearic acid, and stearic acid.

5. The cleaning agent according to any one of claims 1 to 4, wherein the content of component (B) is 5% by mass or more and 10% by mass or less with respect to the total amount of the cleaning agent.

6. The cleaning agent according to any one of claims 1 to 5, wherein the content of component (D) is 0.4% by mass or more and 0.9% by mass or less with respect to the total amount of the cleaning agent.

7. The detergent according to any one of claims 1 to 6, wherein the ratio of the content of component (A) to the content of component (B) is 0.6 or more and 1.7 or less.

Images