Cleaning agent

Abstract

To provide a cleanser that is prevented from dripping from a tube container and has a good feeling in use.SOLUTION: A cleanser contains (A) a C12-18 higher fatty acid, (B) a neutralizer, (C) a fatty acid ester-based nonionic surfactant, and (D) water. The content of the (C) fatty acid ester-based nonionic surfactant is 0.1 mass% or more and 10.0 mass% or less relative to the total amount of the cleanser.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a cleaning agent suitable for face washing. More specifically, it relates to a cleaning agent that not only exhibits sufficient detergency but also has excellent usability and the like.

Background Art

[0002] In cleaning agents used for face washing and the like, higher fatty acid soaps are generally blended from the viewpoints of detergency and foaming property. And especially in face washing cleaning agents, in addition to detergency, in order to improve usability, moisturizing property, etc., combinations of surfactants, moisturizing agents, and other additives have been studied.

[0003] For example, in Patent Document 1, as a cleaning agent composition excellent in detergency and moist feeling, etc., a cleaning agent composition containing (A) 1 to 30% by weight of a higher fatty acid salt, (B) 0.1 to 20% by weight of a polyhydric alcohol, and (C) 0.01 to 5% by weight of an acrylic acid alkyl copolymer has been proposed. Also, in Patent Document 2, as a cleaning agent composition excellent in usability, foaming property, foam quality, and skin feeling after washing in a wide temperature range, a) 38 to 50% by mass of a fatty acid salt having 12 to 18 carbon atoms, b) 0.5 to 5% by mass of hydroxypropyl starch phosphate, c) 3 to 15% by mass of a polyhydric alcohol having 4 to 6 carbon atoms, d) 7 to 20% by mass of glycerin, and a cream-like cleaning agent composition in which the ratio of the content (% by mass) of component c) to the content (% by mass) of component d) is c / d < 1 has been proposed. However, still, further improvement in properties such as usability for conventional cleaning agents is required.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

[0005] The inventors of this invention discovered, during the development process of a cleansing product such as a facial wash packaged in a tube container, that the cleansing product tends to drip from the tube container during use. Therefore, the object of this invention is to provide a cleansing product that prevents dripping from the tube container and has a superior user experience.

[0006] The present inventors conducted diligent studies to solve the above problems and, as a result, found that the above problems could be solved by combining a higher fatty acid having 12 to 18 carbon atoms, a neutralizing agent, a fatty acid ester-type nonionic surfactant, and water in a detergent, and further adjusting the amount of the fatty acid ester-type nonionic surfactant, thus completing the present invention. [Means for solving the problem]

[0007] The present invention provides the following: [1] (A) higher fatty acids with 12 to 18 carbon atoms, (B) Neutralizing agent, (C) Fatty acid ester type nonionic surfactant, and (D)Water A cleaning agent that includes, The content of the (C) fatty acid ester type nonionic surfactant is 0.1% by mass or more and 10.0% by mass or less, based on the total amount of the detergent. Cleansing agent. [2] The detergent according to [1], wherein the (C) fatty acid ester type nonionic surfactant comprises at least one selected from the group consisting of sucrose fatty acid ester, ethylene glycol fatty acid ester, polyethylene glycol fatty acid ester, propylene glycol fatty acid ester, and polypropylene glycol fatty acid ester. [3] The detergent according to [1], wherein the (C) fatty acid ester type nonionic surfactant comprises at least one selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetrastearate triacetate, and sucrose stearate, and ethylene glycol distearate. [4] The total content of at least one selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetrastearate triacetate, and sucrose stearate is 0.1% by mass or more and 8.0% by mass or less. The detergent according to [3], wherein the ethylene glycol distearate content is 0.1% by mass or more and 3.0% by mass or less. [5] The detergent according to any one of [1] to [4], wherein the content of (A) higher fatty acids having 12 to 18 carbon atoms is 10% by mass or more and 60% by mass or less with respect to the total amount of the detergent. [6] (E) A cleansing agent according to any of [1] to [5], further comprising a moisturizer. [7] The cleansing agent according to [6], wherein the content of the (E) humectant is 5% by mass or more and 40% by mass or less with respect to the total amount of the cleansing agent. [8] (F) A cleansing agent according to any one of [1] to [7], further comprising an amphoteric surfactant. [9] (G) A cleansing agent according to any one of [1] to [8], further comprising a cationic polymer.

[10] A cleansing agent for skin, as described in any of [1] to [9].

[11] A cleansing agent for moisturizing the skin, as described in any of [1] to [9].

[12] A cleansing agent as described in any of [1] to

[11] , filled in a tube container. [Effects of the Invention]

[0008] The present invention provides a cleaning agent that prevents dripping from a tube container and offers excellent usability. In particular, the cleaning agent according to the present invention has excellent moisturizing properties. Furthermore, the cleaning agent according to the present invention has high stability in high and low temperature environments and excellent manufacturability. [Modes for carrying out the invention]

[0009] [Cleaning agent] The detergent according to the present invention contains (A) a higher fatty acid having 12 to 18 carbon atoms, (B) a neutralizing agent, (C) a fatty acid ester type nonionic surfactant, and (D) water as essential components. Furthermore, the detergent according to the present invention may also contain (E) a humectant, (F) an amphoteric surfactant, (G) a cationic polymer, and other components, depending on the purpose. The detergent according to the present invention prevents dripping from tube containers, has excellent manufacturability, and provides a superior moisturizing feel.

[0010] ((A) Higher fatty acids) The higher fatty acids are not particularly limited as long as they are higher fatty acids with 12 to 18 carbon atoms that are commonly used as ingredients in detergents. What is generally called a higher fatty acid soap is a mixture of a higher fatty acid and its salt, and in the present invention, a mixture of a higher fatty acid and its salt can also be used.

[0011] The higher fatty acids having 12 to 18 carbon atoms may be linear, branched, saturated, or unsaturated. Specifically, one or more combinations of lauric acid, myristic acid, palmitic acid, stearic acid, palmitoleic acid, oleic acid, isomyristic acid, isopalmitic acid, and isostearic acid can be used. Among these, from the viewpoint of cleaning effect, it is preferable to use a combination of two or more of lauric acid, myristic acid, palmitic acid, and stearic acid, and more preferably a combination of these four.

[0012] The content of higher fatty acids is preferably 10% to 60% by mass, more preferably 15% to 55% by mass, and even more preferably 20% to 50% by mass, relative to the total amount of the cleaning agent. A better cleaning effect can be obtained if the content of higher fatty acids is within the above numerical range.

[0013] ((B) Neutralizing agent) The neutralizing agent is not particularly limited as long as it is a neutralizing agent commonly used as an ingredient in higher fatty acid soaps. Examples of neutralizing agents include hydroxides of alkali metal salts such as potassium hydroxide and sodium hydroxide, hydroxides of alkaline earth metals such as magnesium hydroxide and calcium hydroxide, alkanolamines such as 2-amino-2-methyl-1-propanol, monoethanolamine, diethanolamine, and triethanolamine, basic amino acids such as L-arginine, lysine, and ornithine, aqueous ammonia, ammonium hydroxide, and sodium bicarbonate. Among these, from the viewpoint of improving solubility in water and cleaning effect, one or more selected from sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, aqueous ammonia, monoethanolamine, diethanolamine, and triethanolamine are preferred, one or more selected from sodium hydroxide, potassium hydroxide, aqueous ammonia, monoethanolamine, diethanolamine, and triethanolamine are more preferred, and one or two selected from sodium hydroxide and potassium hydroxide are preferred.

[0014] It is preferable to use potassium laurate, potassium myristate, potassium palmitate, and potassium stearate as salts of higher fatty acids, and it is also preferable to contain all four of these higher fatty acid salts.

[0015] Salts of higher fatty acids are produced, for example, by neutralizing higher fatty acids with a neutralizing agent. Generally, they are not completely neutralized, and the product contains unreacted higher fatty acids. In the present invention, the neutralization rate of higher fatty acids is not particularly limited, but is preferably 60 to 90 mol%, more preferably 70 to 85 mol%. Therefore, in the cleaning agent according to the present invention, preferably 60 to 90 mol%, more preferably 70 to 85 mol% of higher fatty acid salts and preferably 10 to 40 mol%, more preferably 15 to 30 mol% of higher fatty acids are contained. The content of the neutralizing agent is not particularly limited and can be appropriately adjusted so as to achieve the above neutralization rate.

[0016] ((C) Fatty acid ester type nonionic surfactant) Examples of fatty acid ester type nonionic surfactants include 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, etc. Sucrose fatty acid esters, ethylene glycol fatty acid esters, polyethylene glycol fatty acid esters, propylene glycol fatty acid esters, and polypropylene glycol fatty acid esters are preferred. One or a combination of two or more of these may be blended. Also, the fatty acid ester type nonionic surfactant may be of any of the monoester type, diester type, triester type, and tetraester type. The fatty acids of these esters may be either saturated fatty acids or unsaturated fatty acids, and the carbon number of the fatty acids is preferably 10 or more and 20 or less, more preferably 12 or more and 18 or less. For example, as the fatty acid, lauric acid, stearic acid, etc. are preferred.

[0017] The content of the fatty acid ester type nonionic surfactant is preferably 0.1% by mass or more and 10.0% by mass or less, more preferably 0.5% by mass or more and 9.5% by mass or less, and still more preferably 1.0% by mass or more and 9.0% by mass or less with respect to the total amount of the cleaning agent. If the content of the fatty acid ester type nonionic surfactant is within the above numerical range, the manufacturing suitability of the cleaning agent will be more excellent.

[0018] In the present invention, as the fatty acid ester type nonionic surfactant, it is preferable to use at least one selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetra stearate triacetate, and sucrose stearate, in combination with ethylene glycol distearate. When these are used in combination, the total content of at least one selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetra stearate triacetate, and sucrose stearate is preferably 0.1% by mass or more and 8.0% by mass or less, more preferably 0.5% by mass or more and 7.5% by mass or less, and still more preferably 1.0% by mass or more and 7.0% by mass or less, and the content of ethylene glycol distearate is preferably 0.1% by mass or more and 4.0% by mass or less, more preferably 0.5% by mass or more and 3.0% by mass or less, and still more preferably 1.0% by mass or more and 2.5% by mass or less. If these contents are within the above ranges, it is possible to obtain a cleaning agent that prevents dripping from the tube container, has more excellent manufacturing suitability, and has a more excellent moist feeling in use.

[0019] ((D) Water) The water is not particularly limited, but water used in cosmetics, quasi drugs, etc. can be used. For example, purified water, ion-exchanged water, tap water, etc. can be used.

[0020] The water content can be adjusted as appropriate depending on the content of other components. For example, the water content is preferably 5% to 60% by mass, more preferably 5% to 50% by mass, and even more preferably 5% to 35% by mass, relative to the total amount of the detergent.

[0021] ((E) Moisturizer) Examples of humectants, though not particularly limited, include polyethylene glycol, propylene glycol, glycerin, diglycerin, 1,3-butylene glycol, xylitol, sorbitol, maltitol, chondroitin sulfate, hyaluronic acid, mucoitin sulfate, carotenoid acid, atelocollagen, cholesteryl-12-hydroxystearate, sodium lactate, bile salts, dl-pyrrolidone carboxylate, short-chain soluble collagen, diglycerin (EO)PO adduct, Rosa rugosa extract, Achillea millefolium extract, and Melilotus extract. One or more of these may be blended, and it is particularly preferable to blend one or two types of glycerin and diglycerin.

[0022] The amount of humectant is preferably 5% by mass or more and 40% by mass or less, more preferably 10% by mass or more and 35% by mass or less, and even more preferably 15% by mass or more and 30% by mass or less, based on the total amount of the cleansing agent.

[0023] ((F) Amphoteric surfactant) The amphoteric surfactants are not particularly limited, but examples include 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; and betaine-based surfactants such as 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amide betaine, sulfobetaine, and cocamidopropyl betaine. Among these, betaine-based surfactants are preferred, and lauryldimethylaminoacetic acid betaine is more preferred.

[0024] The content of the amphoteric surfactant is preferably 0.1% to 10% by mass, more preferably 0.5% to 8.0% by mass, and even more preferably 1.0% to 5.0% by mass, based on the total amount of the detergent.

[0025] ((G) Cationic polymer) Cationic polymers are not particularly limited, but are preferably hydrophilic polymers having amino groups or quaternary ammonium groups. Examples of such polymers include those obtained by adding substituents having amino groups or quaternary ammonium groups to hydrophilic polymers such as cellulose, and copolymers that include acrylamide or diallyl dialkyl quaternary ammonium salts having cationic groups in their side chains as polymerization units. Of these, copolymers containing diallyl dialkyl quaternary ammonium salts as polymerization units are preferred, copolymers containing diallyl dialkyl quaternary ammonium salts and acrylamide as polymerization units are more preferred, and copolymers containing diallyl dialkyl quaternary ammonium salts, acrylamide and acrylic acid as polymerization units are even more preferred.

[0026] Specifically, examples include cationized cellulose, cationized starch, diallyl dialkyl quaternary ammonium salt / acrylamide copolymer, diallyl dialkyl quaternary ammonium salt / acrylamide / acrylic acid copolymer, with diallyl dialkyl quaternary ammonium salt / acrylamide copolymer and diallyl dialkyl quaternary ammonium salt / acrylamide / acrylic acid copolymer being preferred, and diallyl dialkyl quaternary ammonium salt / acrylamide / acrylic acid copolymer being more preferred. In the present invention, the cationic polymer needs to have a cationic group, but the polymer itself does not need to be a cationic polymer. Rather, in the present invention, using an amphoteric polymer such as diallyl dialkyl quaternary ammonium salt / acrylamide / acrylic acid copolymer tends to yield better results.

[0027] Furthermore, it is preferable that the cationic polymer in this invention has low stringing properties. Such a cationic polymer is thought to have the effect of improving water solubility, that is, facilitating diffusion into water when the cleaning agent comes into contact with water.

[0028] Examples of commercially available cationic polymers that may be included in the cleansing agent of the present invention include Mercoat 100 (trade name: manufactured by Nalco, cosmetic name: polyquaternium-6), Mercoat 550 (trade name: manufactured by Nalco, cosmetic name: polyquaternium-7), Mercoat 2200 (trade name: manufactured by Nalco, cosmetic name: polyquaternium-7), Mercoat 3330 (trade name: manufactured by Nalco, cosmetic name: polyquaternium-39), and the like.

[0029] The content of the cationic polymer is preferably 0.1% by mass or more and 3.0% by mass or less, more preferably 0.3% by mass or more and 3.0% by mass or less, and even more preferably 0.5% by mass or more and 2.0% by mass or less, based on the total amount of the detergent.

[0030] (Other ingredients) The cleansing agent according to the present invention may contain, in addition to the above-mentioned components, other components commonly used in cosmetic and pharmaceutical cleansing agents, and is manufactured according to conventional methods. Other components include those listed below. Other components may be manufactured by further incorporating one or more of the following components, as long as the effects of the present invention are achieved.

[0031] 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.).

[0032] 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.

[0033] 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.

[0034] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, privet wax, whale wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, isopropyl lanolin fatty acid, hexyl laurate, 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.

[0035] Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0036] Examples of higher alcohols include straight-chain alcohols (e.g., lauryl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, oleyl alcohol, cetostearyl alcohol, etc.) and branched-chain alcohols (e.g., monostearyl glycerol ether (batyl alcohol), 2-decyltetradecinol, lanolin alcohol, cholesterol, phytosterol, hexyldodecanol, isostearyl alcohol, octyldodecanol, etc.).

[0037] 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.

[0038] 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.).

[0039] Examples of naturally occurring water-soluble polymers include plant-derived polymers (e.g., gum arabic, tragacanth gum, galactan, guar gum, carob gum, karaya gum, carrageenan, pectin, agar, quince seed, algae colloid (cassia extract), starch (rice, corn, potato, wheat), glycyrrhizic acid); microbial polymers (e.g., xanthan gum, dextran, succinoglucan, pullulan, etc.); and animal-derived polymers (e.g., collagen, casein, albumin, gelatin, etc.).

[0040] Examples of semi-synthetic 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.).

[0041] Examples of synthetic water-soluble polymers include vinyl polymers (e.g., polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, carboxyvinyl polymer, etc.); polyoxyethylene polymers (e.g., polyethylene glycol 20,000, 40,000, 60,000 polyoxyethylene polyoxypropylene copolymer, etc.); acrylic polymers (e.g., sodium polyacrylate, polyethyl acrylate, polyacrylamide, etc.); polyethyleneimines; cationic polymers, etc.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Examples of lower alcohols include ethanol, propanol, isopropanol, isobutyl alcohol, and t-butyl alcohol.

[0046] 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.).

[0047] Examples of oligosaccharides include sucrose, gunthianose, umbelliferose, lactose, planteose, isolichnoses, α,α-trehalose, raffinose, licnoses, unbilicin, stachyose, and vervasocose.

[0048] Examples of polysaccharides include cellulose, quince seed, chondroitin sulfate, starch, galactan, dermatan sulfate, glycogen, gum arabic, heparan sulfate, hyaluronic acid, tragacanth gum, keratan sulfate, chondroitin, xanthan gum, mucoitin sulfate, guar gum, dextran, keratosulfate, locust bean gum, succinoglucan, and carotenoid acid.

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

[0051] Examples of pH adjusting agents 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.

[0052] 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.

[0053] 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.).

[0054] (Application) The cleansing agent according to the present invention can be suitably used, for example, as a skin cleanser or a skin moisturizing cleanser. The cleansing agent according to the present invention can be particularly suitably used as a facial cleanser. Furthermore, while the product form of the present invention is not particularly limited, it is preferable that it be filled into a tube container to prevent dripping. [Examples]

[0055] 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.

[0056] [Examples 1-10, Comparative Examples 1-2] <Preparation of cleaning solution> The cleaning agents for each example and comparative example were prepared using the formulations shown in Table 1. Note that the proportions of each component in Table 1 are in mass percent.

[0057] <Evaluation of cleaning agents> The cleaning agents prepared above were evaluated for their drip-proof properties, workability, and moisturizing properties according to the following criteria.

[0058] [Drip prevention] Each cleaning agent was filled into a tube container. The dripping of the cleaning agent from the tube container was evaluated as follows. Specifically, at 37°C, the contents were checked to see if they dripped out when the tube was inverted, and evaluated according to the evaluation criteria below. The evaluation results are shown in Table 1. An evaluation result of A to C is considered a passing grade. <Evaluation Criteria> A: No dripping of the cleaning solution. B: If no pressure is applied to the tube container, the cleaning solution will not drip. C: There is no dripping of the cleaning solution, but a small amount of the cleaning solution is leaking from the opening of the tube container. D: There is dripping of the cleaning solution.

[0059] [Manufacturing suitability] The manufacturing suitability of each cleaning agent when filling them into tube containers was evaluated as follows. Specifically, the feasibility of stirring the cleaning agent during manufacturing was evaluated according to the following evaluation criteria. The evaluation results are shown in Table 1. An evaluation result of A to C indicates a pass. <Evaluation Criteria> A: The viscosity increase is so slight that it does not cause any problems during the stirring of the cleaning agent during manufacturing, or there is almost no viscosity increase. B: A degree of thickening that does not cause problems with stirring the cleaning agent during manufacturing. C: The cleaning agent can be manufactured by rapidly stirring it to a certain degree of viscosity. D: Inability to agitate the cleaning agent

[0060] [Moisturizing feel] (Evaluation method) Ten professional panel members, all 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. Each panel member used each cleanser for facial washing and evaluated the moisturizing effect after use. Each cleanser was evaluated on a 5-point scale using the absolute evaluation method described below, and a score was assigned. The average score was calculated from the total scores of all panel members for each cleanser, and the final judgment was made based on this average. The evaluation results are shown in Table 1. A score of A to C indicates a passing grade. <Rating> 5 points: I really like the moisturizing effect. 4 points: I really feel the moisturizing effect. 3 points: Feels moisturizing. 2 points: I hardly feel any moisturizing effect. 1 point: I don't feel any moisturizing effect at all. <Evaluation Criteria> A: Average score of 4.0 or higher B: Average score is between 3.5 and 4.0 C: Average score is between 3.0 and 3.5 points. D: Average score is less than 3.0 points

[0061] [Table 1]

[0062] From the above results, it can be seen that the detergent according to the present invention is excellent in terms of preventing dripping, ease of manufacture, and providing a moist feel. Furthermore, considering the results of the comparative example together, it can be seen that the detergent according to the present invention achieves excellent effects by simultaneously combining (A) higher fatty acids having 12 to 18 carbon atoms, (B) a neutralizing agent, and a specific amount of (C) a fatty acid ester type nonionic surfactant. Furthermore, it can be seen that the ease of manufacture is further improved by simultaneously combining at least one selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetrastearate triacetate, and sucrose stearate as the (C) fatty acid ester type nonionic surfactant with ethylene glycol distearate. On the other hand, it can be seen that the moist feel deteriorates when the (C) fatty acid ester type nonionic surfactant is not included. Furthermore, it can be seen that the ease of manufacture deteriorates when the amount of (C) fatty acid ester type nonionic surfactant is too high.

Claims

1. (A) Higher fatty acids with 12 to 18 carbon atoms, (B) Neutralizing agent, (C) Fatty acid ester type nonionic surfactant, (D) Water, and (G) Cationic polymer A cleaning agent that includes, The (C) fatty acid ester type nonionic surfactant comprises at least one selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetrastearate triacetate, and sucrose stearate, and ethylene glycol distearate. The content of the (C) fatty acid ester type nonionic surfactant is 0.1% by mass or more and 10.0% by mass or less, based on the total amount of the detergent. The total content of at least one substance selected from the group consisting of propylene glycol laurate, diethylene glycol laurate, sucrose tetrastearate triacetate, and sucrose stearate is 0.1% by mass or more and 2.0% by mass or less. A detergent containing ethylene glycol distearate in an amount of 0.1% by mass or more and 3.0% by mass or less.

2. The detergent according to claim 1, wherein the content of (A) higher fatty acids having 12 to 18 carbon atoms is 10% by mass or more and 60% by mass or less with respect to the total amount of the detergent.

3. (E) The cleansing agent according to claim 1 or 2, further comprising a moisturizer.

4. The cleansing agent according to claim 3, wherein the content of the humectant (E) is 5% by mass or more and 40% by mass or less with respect to the total amount of the cleansing agent.

5. (F) The cleaning agent according to any one of claims 1 to 4, further comprising an amphoteric surfactant.

6. The cleaning agent according to any one of claims 1 to 5, wherein the content of the cationic polymer (G) is 0.1% by mass or more and 3.0% by mass or less with respect to the total amount of the cleaning agent.

7. A cleansing agent for skin, as described in any one of claims 1 to 6.

8. A cleansing agent for moisturizing the skin, as described in any one of claims 1 to 6.

9. A cleaning product according to any one of claims 1 to 6, filled in a tube container.

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