cleaning agents

Abstract

To provide washing agents that do not cause post-crushing residues in the manufacturing process and have excellent usability.SOLUTION: Used is a washing agent containing a nonionic surfactant (A) and a fatty acid (B), the nonionic surfactant (A) containing a polyoxyethylene polyoxypropylene alkyl ether having an HLB value of 6 or more, and the blending amount of polyoxyethylene polyoxypropylene alkyl ether having an HLB value of 6 or more being 0.5 to 21.0 mass% based on the total amount of the washing agent.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a cleanser, and more particularly to a foaming cleanser suitable for removing makeup cosmetics. [Background technology]

[0002] Conventionally, makeup cosmetics that generally have excellent adhesion to the skin and long-lasting makeup have been developed one after another. However, makeup cosmetics that have long-lasting makeup have a problem in that they are difficult to remove. Therefore, there is a demand for cleansers that are suitable for removing makeup cosmetics.

[0003] Various cleansers have been proposed to address the above-mentioned problems. For example, Patent Document 1 proposes a makeup remover characterized by containing an ethylene oxide-added polypropylene glycol surfactant having a specific structure and an oil. Patent Document 2 also proposes a transparent gel composition containing, as component (A), 5 to 80% by mass of a specific alkylene glycol that is liquid at 25°C, and as component (B), 20 to 95% by mass of a specific hydroxyl alkyl polyhydric alcohol ester. Patent Document 3 also proposes a cleanser composition characterized by containing, as component (A), at least one selected from polyoxyethylene polyoxypropylene butyl ethers, polyoxypropylene diglyceryl ethers, polyoxyethylene polyoxypropylene glyceryl ethers, and polyoxyethylene polyoxypropylene glycols, each having an IOB value of 0.88 to 0.93. However, these cleansers are wipe-off types and do not foam at all. Meanwhile, in recent years, there has been a demand for foaming cleansers with an excellent feel when used. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-298032 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-83464 [Patent Document 3] Japanese Patent Application Publication No. 2017-114805 Summary of the Invention [Problem to be solved by the invention]

[0005] During the manufacturing process of a detergent, the hardness of the detergent increases significantly from the end of manufacturing to the time of filling. However, when filling the detergent, shear is applied during the process of transferring the detergent to the filling machine, and the detergent is filled in a uniformly softened state. However, the inventors have discovered a new problem: the greater the difference in hardness of the detergent before and after shear application, the more uneven the shear application becomes, resulting in the formation of uncrushed detergent (called "lumps"). Therefore, an object of the present invention is to provide a detergent that is easy to use and does not generate lumps during the manufacturing process.

[0006] The present inventors have conducted extensive research to solve the above-mentioned problems, and have surprisingly found that the above-mentioned problems can be solved by incorporating a specific type of nonionic surfactant and a fatty acid into a detergent, and further adjusting the amount of the specific type of nonionic surfactant, thereby completing the present invention. [Means for solving the problem]

[0007] According to the present invention, the following inventions are provided. [1] (A) a nonionic surfactant, and (B) Fatty acid Including, the (A) nonionic surfactant is a polyoxyethylene polyoxypropylene alkyl ether having an HLB value of 6 or more, and the blending amount of the polyoxyethylene polyoxypropylene alkyl ether having an HLB value of 6 or more is 0.5 to 21.0 mass% based on the total amount of the detergent; Cleaning agent. [2] The cleaning agent according to [1], wherein in the polyoxyethylene polyoxypropylene alkyl ether, the addition form of the oxyethylene groups and oxypropylene groups is random addition, block addition, or a combination thereof. [3] The cleaning agent according to [1] or [2], wherein the nonionic surfactant (A) is a polyoxyethylene polyoxypropylene alkyl ether represented by the following formula (I): RO―(C2H4O) m (C3H6O) n -R 1 (I) (Wherein R and R 1 each independently represents hydrogen or a linear or branched alkyl group having 1 to 30 carbon atoms, m is the number of moles of ethylene oxide added and is a number from 2 to 100, and n is the number of moles of propylene oxide added and is a number from 2 to 100). [4] The cleaning agent according to any one of [1] to [3], wherein the (A) nonionic surfactant is one or more nonionic surfactants selected from the group consisting of polyoxyethylene polyoxypropylene-50 / 40-dimethyl ether, polyoxyethylene polyoxypropylene-36 / 41-dimethyl ether, polyoxyethylene polyoxypropylene-35 / 40-dimethyl ether, polyoxypropylene-15-buteth-20, polyoxypropylene-20-decyltetradeceth-10, polyoxypropylene-13-decyltetradeceth-24, polyoxypropylene-8-ceteth-20, polyoxypropylene-2-deceth-12, and polyoxypropylene-30-buteth-30. [5] The cleaning agent according to any one of [1] to [4], wherein the nonionic surfactant (A) has an HLB value of 8 or more. [6] The cleaning agent according to any one of [1] to [5], wherein the blending amount of the (B) fatty acid or its salt is 15.0 to 40.0 mass % based on the total amount of the cleaning agent. [7] The cleaning agent according to any one of [1] to [6], further comprising (C) a polyhydric alcohol. [8] The cleaning agent according to [7], wherein the (C) polyhydric alcohol is one or more polyhydric alcohols selected from the group consisting of glycerin, sorbitol, and polyethylene glycol. [9] The cleaning agent according to [7] or [8], wherein the blending amount of the (C) polyhydric alcohol is 20.0 to 45.0 mass % based on the total amount of the cleaning agent.

[10] The cleanser according to any one of [1] to [9], which is a makeup remover. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a foaming detergent which does not produce lumps during the manufacturing process and which is easy to use, particularly has excellent foaming properties. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Cleaning agent] The cleanser according to the present invention contains (A) a nonionic surfactant and (B) a fatty acid as essential ingredients. Furthermore, the cleanser according to the present invention may contain (C) a polyhydric alcohol, water, and other ingredients depending on the purpose. The cleanser according to the present invention does not produce any lumps during the manufacturing process and is easy to use. In particular, the cleanser according to the present invention is a foaming cleanser that foams well and is particularly suitable for removing makeup cosmetics (makeup remover).

[0010] ((A) Nonionic surfactant) The detergent of the present invention contains a polyoxyethylene polyoxypropylene alkyl ether with an HLB value of 6 or higher as a nonionic surfactant. In the present invention, when manufacturing the detergent, this specific, highly hydrophilic nonionic surfactant is blended, and shear is applied to expel water from between the surfactant layers (palisade layer), allowing a large amount of water to be present between the gel and coagel. This improves the mobility and fluidity of the coagel and gel, which is thought to prevent the formation of lumps.

[0011] The HLB value of the polyoxyethylene polyoxypropylene alkyl ether is preferably 8 or more, and is preferably 15 or less, and more preferably 13 or less. Here, the HLB value is an index showing the hydrophilic-lipophilic balance, and in the present invention is a value calculated using the following formula by Oda, Teramura et al. HLB value = (Σ inorganic value / Σ organic value) × 10

[0012] In the polyoxyethylene polyoxypropylene alkyl ether, the addition form of the oxyethylene groups and oxypropylene groups may be any of random addition, block addition, or a combination thereof.

[0013] More specifically, the polyoxyethylene polyoxypropylene alkyl ether is preferably one represented by the following formula (I): RO―(C2H4O) m (C3H6O) n -R 1 (I) In formula (I), R and R 1 each independently represents hydrogen or a straight-chain or branched-chain alkyl group having 1 to 30 carbon atoms. Examples of the alkyl group include straight-chain alkyl groups such as methyl, ethyl, butyl, hexyl, heptyl, octyl (also called capryl), nonyl, decyl, undecyl, dodecyl (also called lauryl), tridecyl, tetradecyl (also called myristyl), pentadecyl, hexadecyl (also called palmityl), heptadecyl, octadecyl (also called stearyl), nonadecyl, icosyl, heneicosyl, and docosyl; branched-chain alkyl groups such as 2-ethylhexyl, 2-methylheptyl, 2-methylnonyl, 2-octyldecyl, 3,5,5-trimethylhexyl, and isostearyl; and cyclic alkyl groups such as cyclohexyl. In formula (I), m is a number of 2 to 100, preferably 20 to 80, in terms of the number of moles of ethylene oxide added. In formula (I), n is a number of 2 to 100, preferably 20 to 80, in terms of the number of moles of propylene oxide added.

[0014] The number average molecular weight (Mn) of the polyoxyethylene polyoxypropylene alkyl ether is not particularly limited, but is, for example, preferably 500 to 6,000, more preferably 600 to 5,000, even more preferably 700 to 4,800, and still more preferably 800 to 4,600.

[0015] Suitable polyoxyethylene polyoxypropylene alkyl ethers include, for example, polyoxyethylene polyoxypropylene-50 / 40-dimethyl ether (PEG / PPG-50 / 40-dimethyl ether), polyoxyethylene polyoxypropylene-36 / 41-dimethyl ether (PEG / PPG-36 / 41-dimethyl ether), polyoxyethylene polyoxypropylene-35 / 40-dimethyl ether (PEG / PPG-35 / 40-dimethyl ether), polyoxypropylene-15- buteth-20 (PPG-15-buteth-20), polyoxypropylene-20-decyltetradeceth-10 (PPG-20-decyltetradeceth-10), polyoxypropylene-13-decyltetradeceth-24 (PEG-13-decyltetradeceth-24), polyoxypropylene-8-ceteth-20 (PPG-8-ceteth-20), polyoxypropylene-2-deceth-12 (PPG-2-deceth-12), and polyoxypropylene-30-buteth-30 (PPG-30-buteth-30). These polyoxyethylene polyoxypropylene alkyl ethers may be used alone or in combination of two or more.

[0016] The blending amount of polyoxyethylene polyoxypropylene alkyl ether with an HLB value of 6 or more is 0.5 to 21.0 mass%, preferably 0.8 to 20.0 mass%, more preferably 0.9 to 15.0 mass%, and even more preferably 1 to 10.0 mass%, based on the total amount of the detergent.

[0017] (B) Fatty acid The fatty acid is not particularly limited as long as it is a fatty acid that is commonly used as a material for detergents. The detergent may also contain a fatty acid soap, which is a fatty acid salt obtained by neutralizing a fatty acid with a neutralizing agent.

[0018] The fatty acid is preferably a fatty acid having 8 to 22 carbon atoms, and may be linear, branched, saturated, or unsaturated. For example, one or a combination of two or more of lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, palmitoleic acid, oleic acid, isomyristic acid, isopalmitic acid, and isostearic acid may be used.

[0019] 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, sodium bicarbonate, etc. 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.

[0020] As the fatty acid salt, potassium laurate, potassium myristate, potassium palmitate, and potassium stearate are preferably used, and potassium laurate, potassium myristate, and potassium palmitate are more preferably used.

[0021] Fatty acid salts are produced, for example, by neutralizing fatty acids with an alkali. However, they are generally not completely neutralized, and the product may also contain unreacted (higher) fatty acids. The neutralization rate of the fatty acid is not particularly limited, but is preferably 60 to 90 mol %, more preferably 70 to 85 mol %. Therefore, the cleaning agent according to the present invention preferably contains 60 to 90 mol %, more preferably 70 to 85 mol %, of fatty acid salt, and preferably 10 to 40 mol %, more preferably 15 to 30 mol % of fatty acid. The content of the neutralizing agent is not particularly limited, and can be adjusted as appropriate to achieve the above neutralization rate.

[0022] The amount of the fatty acid to be blended is preferably 15.0 to 40.0 mass %, more preferably 16.0 to 35.0 mass %, and even more preferably 18.0 to 30.0 mass %, based on the total amount of the detergent.

[0023] (C) Polyhydric alcohol Examples of polyhydric alcohols include dihydric alcohols (e.g., ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3-butylene glycol, pentamethylene glycol, 2-butene-1,4-diol, isopentyl diol, hexylene glycol, octylene glycol, etc.); trihydric alcohols (e.g., glycerin, trimethylolpropane, etc.); tetrahydric alcohols (e.g., pentaerythritol such as 1,2,6-hexanetriol, etc.); pentahydric alcohols (e.g., xylitol, etc.); hexahydric alcohols (e.g., sorbitol, mannitol, etc.); and polyhydric alcohol polymers (e.g., diethylene glycol, dipropylene glycol, etc.). , triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin, tetraglycerin, polyglycerin, etc.); dihydric alcohol alkyl ethers (e.g., ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, etc.);Dihydric alcohol alkyl ethers (e.g., diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether, dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether, etc.); dihydric alcohol ether esters (e.g., ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol Cole diadipate, ethylene glycol disuccinate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, propylene glycol monophenyl ether acetate, etc.; glycerin monoalkyl ethers (e.g., xyl alcohol, selachyl alcohol, batyl alcohol, etc.); sugar alcohols (e.g., sorbitol, maltitol, maltotriose, mannitol, sucrose, erythritol, glucose, fructose, starch hydrolysis sugars, maltose, xylitose, starch hydrolysis sugar reducing alcohols, etc.); glysolids; tetrahydrofurfuryl alcohol; POE-tetrahydrofurfuryl alcohol; POP-butyl ether; POP·POE-butyl ether; tripolyoxypropylene glycerin ether; POP-glycerin ether; POP-glycerin ether phosphate;Examples of suitable surfactants include POP·POE-pentaneerythritol ether and polyglycerin. One or more of these may be blended in combination. Among these, it is preferable to use at least one selected from the group consisting of glycerin, sorbitol, and polyethylene glycol.

[0024] The blending amount of the polyhydric alcohol is preferably 20.0 to 45.0 mass %, more preferably 24.0 to 44.0 mass %, and even more preferably 28.0 to 43.0 mass %, based on the total amount of the detergent.

[0025] (water) The water is not particularly limited, but may be water used in cosmetics, quasi-drugs, etc., such as purified water, ion-exchanged water, tap water, etc. The amount of water to be added may be adjusted appropriately depending on the content of ingredients other than water.

[0026] (Other ingredients) The cleanser of the present invention can contain, in addition to the above-mentioned ingredients, ingredients commonly used in cosmetics, and is produced according to conventional methods. Examples of other ingredients include those listed below. As long as the effects of the present invention are achieved, the cleanser can be produced by further blending one or more of the following ingredients:

[0027] Examples of surfactants that may be contained in the cleaning agent of the present invention include nonionic surfactants other than the above-mentioned polyoxyethylene polyoxypropylene alkyl ethers, cationic surfactants, anionic surfactants, and amphoteric surfactants.

[0028] As a nonionic surfactant other than the above-mentioned polyoxyethylene polyoxypropylene alkyl ether, for example, a fatty acid ester type nonionic surfactant can be used. Specific examples of fatty acid ester type nonionic surfactants include glycerin fatty acid esters, polyglycerin fatty acid esters, sucrose fatty acid esters, ethylene glycol fatty acid esters, polyethylene glycol fatty acid esters, propylene glycol fatty acid esters, polypropylene glycol fatty acid esters, and sorbitan fatty acid esters. The fatty acids in these esters may be either saturated or unsaturated fatty acids, and the number of carbon atoms in the fatty acid is preferably 10 to 20, more preferably 12 to 18. For example, lauric acid, stearic acid, etc. are preferred as the fatty acid.

[0029] Specific examples of the cationic surfactant include stearyl trimethylammonium chloride, cetyl trimethylammonium chloride, behenyl trimethylammonium chloride, distearyl dimethylammonium chloride, dioleyl dimethylammonium chloride, didecyl dimethylammonium chloride, lauric acid amide butylguanidine acetate, myristate amide butylguanidine acetate, palmitic acid amide butylguanidine acetate, distearyl dimethylammonium sulfate, stearyl ethyl dihydroxyethylammonium ethyl sulfate, N-coconut oil fatty acid L-arginine ethyl DL-pyrrolidone carboxylate, stearic acid dimethylaminoethylamide, stearic acid dimethylaminopropylamide, stearic acid diethylaminoethylamide, stearic acid diethylaminopropylamide, stearic acid dipropylaminoethylamide, stearic acid dipropylaminopropylamide, palmitic acid dimethylaminoethylamide, palmitic acid dimethylaminopropylamide, myristate dimethylaminoethylamide, myristate dimethylaminopropylamide, behenic acid dimethylaminoethylamide, and behenic acid dimethylaminopropylamide.

[0030] Specific examples of the anionic surfactant include N-acylamino acid salts, N-acylmethyl taurine salts, alkyl ether phosphate salts, alkyl sulfate salts, and polyoxyethylene alkyl ether sulfate salts. Examples include N-acyl glutamates such as potassium cocoyl glutamate, N-acyl-N-methyl-β-alanine salts, N-acyl sarcosinate salts, sodium N-cocoyl taurate, sodium N-cocoyl-N-methyl taurate, sodium N-lauroyl-N-methyl taurate, sodium N-coconut oil fatty acid-N-methyl taurate, triethanolamine N-coconut oil fatty acid-N-methyl taurate, triethanolamine N-palm oil fatty acid-N-ethyl taurate, magnesium N-cocoyl taurate, magnesium N-cocoyl-N-methyl taurate, magnesium N-lauroyl-N-taurate, magnesium N-lauroyl-N-methyl taurate, and magnesium N-coconut oil fatty acid-N-methyl taurate.

[0031] Specific examples of amphoteric surfactants include imidazoline-based amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.); betaine-based surfactants (e.g., 2-heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, lauryldimethylaminoacetic acid betaine, alkyl betaine, amido betaine, sulfobetaine, cocamidopropyl betaine, lauryl betaine, etc.).

[0032] Examples of chelating agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium (disodium ethylenediaminetetraacetate (EDTA-2Na)), edetate trisodium, edetate tetrasodium, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, ethylenediaminehydroxyethyltriacetate trisodium, etc. Among these, EDTA-2Na is preferred.

[0033] Examples of cationic polymers include hydrophilic polymers having amino groups or quaternary ammonium groups. Specific examples of such hydrophilic polymers include those in which a substituent having an amino group or a quaternary ammonium group is added to a hydrophilic polymer such as cellulose, and copolymers containing, as polymerization units, acrylamide or diallyldialkyl quaternary ammonium salts having cationic groups in their side chains. Among these, copolymers containing diallyldialkyl quaternary ammonium salts as polymerization units are preferred, copolymers containing diallyldialkyl quaternary ammonium salts and acrylamide as polymerization units are more preferred, and copolymers containing diallyldialkyl quaternary ammonium salts, acrylamide, and acrylic acid as polymerization units are even more preferred.

[0034] Examples of powder components include inorganic powders (e.g., talc, kaolin, mica, sericite, muscovite, phlogopite, synthetic mica, lepidolite, 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, metal soap (e.g., zinc myristate), , 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., gamma-iron oxide, etc.); inorganic yellow pigments (e.g., yellow iron oxide, yellow ochre, etc.); inorganic Black pigments (e.g., black iron oxide, low-order 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, barium organic pigments such as sodium or aluminum lakes (e.g., organic pigments such as Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, and Blue No. 1); natural pigments (e.g., chlorophyll, β-carotene, etc.), and the like.

[0035] Examples of liquid oils and fats include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, camellia oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese tung oil, Japanese tung oil, jojoba oil, germ oil, and triglycerin.

[0036] Examples of solid fats and oils include cacao butter, coconut oil, horse fat, hardened coconut oil, palm oil, beef tallow, mutton tallow, hardened beef tallow, palm kernel oil, lard, beef bone fat, Japan wax kernel oil, hardened oil, beef trotter fat, Japan wax, and hardened castor oil.

[0037] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ivory wax, whale wax, montan wax, rice bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl, 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.

[0038] Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0039] Examples of the ultraviolet absorber include benzoic acid-based ultraviolet absorbers (e.g., para-aminobenzoic acid (hereinafter abbreviated as PABA), PABA monoglycerin 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 ultraviolet absorbers (e.g., homomenthyl-N-acetylanthranilate, etc.); salicylic acid-based ultraviolet absorbers (e.g., amyl salicylate, etc.); cinnamic acid-based ultraviolet 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-methoxycinnamate, isopropyl p-methoxycinnamate, isoamyl p-methoxycinnamate, methyl 2,5-diisopropyl cinnamate, ethyl 2,4-diisopropyl cinnamate, propyl p-methoxycinnamate, isopropyl p-methoxycinnamate, isoamyl p-methoxycinnamate, methyl 2,5-diisopropyl cinnamate, ethyl 2,4-diisopropyl cinnamate, methyl ...methyl 2,4-diisopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, methyl 2,4-diisopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, methyl 2,5-diisopropyl cinnamate, methyl 2,5-diiso cyclohexyl-p-methoxycinnamate, 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-di-para-methoxycinnamate, etc.; benzophenone-based ultraviolet absorbers (e.g., 2,4-dihydroxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, etc.); 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'-phenyl-benzophenone-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; dibenzalazine; dianisoylmethane; 4-methoxy-4'-t-butyldibenzoylmethane; 5-(3,3-dimethyl-2-norbornylidene)-3-pentan-2-one, and the like.

[0040] Examples of sequestering agents include 1-hydroxyethane-1,1-diphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid tetrasodium salt, edetate disodium, edetate trisodium, edetate tetrasodium, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, phosphoric acid, citric acid, ascorbic acid, succinic acid, edetic acid, and ethylenediaminehydroxyethyltriacetate trisodium salt.

[0041] Examples of pH adjusters include buffers such as lactic acid-sodium lactate, citric acid-sodium citrate, succinic acid-sodium succinate, etc. Examples of vitamins include vitamin A, B1, B2, B6, C, E and derivatives thereof, pantothenic acid and derivatives thereof, biotin, etc.

[0042] Examples of antioxidants include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, gallic acid esters, sulfites, and hydrogen sulfites. Examples of antioxidant aids include phosphoric acid, citric acid, ascorbic acid, maleic acid, malonic acid, succinic acid, fumaric acid, cephalin, hexametaphosphate, phytic acid, and ethylenediaminetetraacetic acid.

[0043] Other ingredients that can be added include, for example, preservatives (ethylparaben, butylparaben, etc.); anti-inflammatory agents (for example, glycyrrhizinic 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 bark, Coptis chinensis, Lithospermum root, Peony, Swertia japonica, Birch, sage, Loquat, Carrot, Aloe, Mallow, Iris, Grape, Job's tears, Luffa, Lily, Saffron, Cnidium rhizome, Angelica acutiloba, Hypericum perforatum, Ononis, Garlic, Chili pepper, Citrus fruit, Angelica acutiloba, Seaweed, etc.), activators agents (e.g., royal jelly, photosensitizers, cholesterol derivatives, etc.); blood circulation promoters (e.g., nonylic acid valenylamide, nicotinic acid benzyl ester, nicotinic acid β-butoxyethyl ester, capsaicin, zingerone, cantharides tincture, ichthammol, tannic acid, α-borneol, tocopherol nicotinate, inositol hexanicotinate, cyclandelate, cinnarizine, tolazoline, acetylcholine, verapamil, cepharanthine, γ-oryzanol, etc.); antiseborrheic agents (e.g., sulfur, thianthol, etc.); anti-inflammatory agents (e.g., tranexamic acid, thiotaurine, hypotaurine, etc.), etc. [Example]

[0044] The present invention will be specifically described based on the following examples, but the present invention is not limited to these examples.

[0045] [Examples 1 to 63, Comparative Examples 1 to 27] <Preparation of cleaning agent> Cleaning agents of the respective Examples and Comparative Examples were prepared according to the formulations shown in the following Tables 1 to 20. The polyoxyethylene polyoxypropylene alkyl ethers used in preparing the cleaning agents are as follows. PEG / PPG-50 / 40-dimethyl ether: HLB value 10, number average molecular weight (Mn): 4600 PEG / PPG-35 / 40-dimethyl ether: HLB value 8, number average molecular weight (Mn): 3800 PEG / PPG-36 / 41-dimethyl ether: HLB value 9, number average molecular weight (Mn): 4000 PPG-15-Buteth-20: HLB value 10, number average molecular weight (Mn): 1600 PPG-20-Decyltetradeceth-10: HLB value 6, number average molecular weight (Mn): 1954 PPG-40 butyl ether: HLB value 4, number average molecular weight (Mn): 2300 PPG-13-Decyltetradeceth-24: HLB value 10, number average molecular weight (Mn): 2100 PPG-8-Ceteth-20: HLB value 12.5, number average molecular weight (Mn): 1590 PPG-2-Deces-12: HLB value 12, number average molecular weight (Mn): 800 PPG-30-Buteth-30: HLB value 9, number average molecular weight (Mn): 3000

[0046] <Evaluation of cleaning agents> The degree of improvement in lumps and ease of use of each of the prepared cleaning agents were evaluated according to the following criteria.

[0047] [Improvement of the problem] Five expert panelists, women in their 30s and 40s who had received training in sensory evaluation and were able to evaluate according to certain standards, were selected. The five expert panelists took 2 to 5 g of each detergent, spread it on the palm of their hand, checked the appearance for any remaining lumps, and evaluated it based on the following evaluation criteria. The evaluation results are shown in Tables 1 to 20. A rating of A to B is considered a pass. <Evaluation criteria> A: No bumps were found. B: There were some small bumps, but it was not a problem. C: A large amount of lumps had appeared.

[0048] [Usability (foaming)] Five women in their 30s and 40s who had received training in sensory evaluation and were able to evaluate using certain criteria were selected as a specialist panel. The five specialist panel members foamed each cleanser and evaluated it based on the following evaluation criteria. The evaluation results are shown in Tables 1 to 20. A rating of A to D indicates a pass. <Evaluation criteria> A: The foaming was very good. B: The foaming was quite good. C: It foamed well. D: The foaming was somewhat good. E: The foaming was somewhat poor. F: The foaming was poor. G: The foaming was very poor.

[0049] [Table 1]

[0050] [Table 2]

[0051] [Table 3]

[0052] [Table 4]

[0053] [Table 5]

[0054] [Table 6]

[0055] [Table 7]

[0056] Table 8

[0057] Table 9

[0058] Table 10

[0059] Table 11

[0060] Table 12

[0061] Table 13

[0062] Table 14

[0063] Table 15

[0064] Table 16

[0065] Table 17

[0066] Table 18

[0067] [Table 19]

[0068] [Table 20]

[0069] The above results show that the detergent of the present invention does not produce particles during the manufacturing process and is easy to use, especially in terms of foaming. Furthermore, when the results of the comparative examples are also considered, it is clear that the detergent of the present invention achieves excellent effects by incorporating a specific amount of polyoxyethylene polyoxypropylene alkyl ether with an HLB value of 6 or more. On the other hand, when a polyoxyethylene polyoxypropylene alkyl ether with an HLB value of less than 6 (4) is incorporated, particles are produced during the manufacturing process and foaming deteriorates.

Claims

1. (A) a nonionic surfactant, (B) fatty acid, Neutralizer, and (C) Polyhydric alcohol A cleaning agent comprising: the nonionic surfactant (A) is one or more nonionic surfactants selected from the group consisting of polyoxypropylene-15-buteth-20, polyoxypropylene-20-decyltetradeceth-10, polyoxypropylene-13-decyltetradeceth-24, polyoxypropylene-8-ceteth-20, polyoxypropylene-2-deceth-12, and polyoxypropylene-30-buteth-30, and the blending amount of the nonionic surfactant (A) is 0.5 to 21.0% by mass based on the total amount of the cleaning agent; the (B) fatty acid is at least one selected from the group consisting of lauric acid, myristic acid, palmitic acid, and stearic acid; the blending amount of the (C) polyhydric alcohol is 20.0 to 45.0% by mass based on the total amount of the cleaning agent, A cleanser that is a makeup remover.

2. 2. The cleaning agent according to claim 1, wherein the nonionic surfactant (A) has an HLB value of 8 or more.

3. 3. The cleaning agent according to claim 1, wherein the blending amount of the fatty acid (B) is 15.0 to 40.0 mass % based on the total amount of the cleaning agent.

4. A cleaning agent described in any one of claims 1 to 3, wherein the neutralizing agent is at least one selected from sodium hydroxide and potassium hydroxide.

5. The cleansing agent according to any one of claims 1 to 4, wherein the (C) polyhydric alcohol is one or more polyhydric alcohols selected from the group consisting of glycerin, sorbitol, and polyethylene glycol.

6. The cleaning agent according to any one of claims 1 to 5, wherein the blending amount of the (C) polyhydric alcohol is 28.0 to 45.0 mass% based on the total amount of the cleaning agent.

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