Cleansing product

Abstract

The present invention aims to provide a cleansing product that has excellent cleansing power and leaves little residue after rinsing. [Solution] The present invention relates to a cleansing agent containing component (A) an ester of a fatty acid having 6 to 22 carbon atoms and a monohydric alcohol having 2 to 22 carbon atoms, and component (B) polyethylene glycol isostearate.

Description

Technical Field

[0001] The present invention relates to cosmetics, and more particularly to cleansing agents.

Background Art

[0002] A cleansing agent is a cosmetic for removing oil stains and makeup cosmetics that are difficult to completely remove with aqueous facial cleansers such as soap from the skin. In recent years, cleansing agents with high detergency have been developed. However, even after aqueous facial cleansing after using such a cleansing agent, oily components due to the cleansing agent may remain, and there may be a problem with the residual feeling after rinsing. That is, there has been a demand for the development of a cleansing agent that has excellent detergency and little residual feeling after rinsing.

[0003] For example, as a cleansing agent with high detergency, cleansing agents containing ethylhexyl palmitate, isononyl isononanoate, etc. have been developed. These cleansing agents containing these components had a problem of having a residual feeling of the cleansing agent after rinsing.

[0004] In addition, cleansing agents containing polyethylene glycol fatty acid monoesters such as polyethylene glycol isostearate and glyceryl polyoxyethylene fatty acid are known (Patent Document 1). However, the effects of combinations with cleaning components other than glyceryl polyoxyethylene fatty acid have not been studied.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In light of the above circumstances, the present invention aims to provide a cleansing product that has excellent cleansing power and leaves little residue after rinsing. [Means for solving the problem]

[0007] The inventors of the present invention conducted studies to solve the above problems and found that a composition containing a fatty acid ester and polyethylene glycol isostearate can achieve a cleansing agent with excellent cleaning power and minimal residue after rinsing, thus completing the present invention. In other words, the gist of this invention is as follows:

[0008] [1] A cleansing product containing the following ingredients (A) and (B). (A) Esters of fatty acids with 6 to 22 carbon atoms and monohydric alcohols with 2 to 22 carbon atoms. (B) Polyethylene glycol isostearate [2] The cleansing agent wherein component (A) is an ester of a fatty acid having 8 to 16 carbon atoms and a monohydric alcohol having 8 to 16 carbon atoms. [3] The cleansing agent wherein component (A) is one or more selected from isononyl isononanoate, ethylhexyl palmitate, and cetyl ethylhexanoate. [4] The number of moles of ethylene oxide added to component (B) is 8 to 20. Cleansing product. [5] The cleansing agent wherein component (B) is one or more selected from PEG-8 isostearate, PEG-10 isostearate, and PEG-12 isostearate. [6] The cleansing composition wherein the content of (A) is 20 to 99.5% by mass of the entire composition. [7] The cleansing composition wherein the content of (B) is 0.5 to 10% by mass relative to the entire composition. [8] Furthermore, the cleansing agent contains component (C) an alkyl-modified silicone. [9] The cleansing agent wherein the component (C) is caprylyl methicone.

[10] The cleansing agent which is an oil-based cleansing agent.

[11] The cleansing agent which is an oil cleansing agent. [Effect of the Invention]

[0009] According to the present invention, it is possible to provide a cleansing agent having excellent detergency and little residue after rinsing. [Brief Description of the Drawings]

[0010] [Figure 1] Fig. 1 shows the evaluation results of the detergency and the residue after rinsing of the samples of the examples and the comparative examples (photograph for substitute of drawing). (a) Used sample, (b) After 5 minutes of drying the mascara, (c) After applying 2 drops of each sample and rubbing 5 times, (d) After 10 seconds of tissue-off. [Modes for Carrying Out the Invention]

[0011] Hereinafter, the present invention will be described. [Cleansing Agent] One aspect of the present invention relates to a cleansing agent (hereinafter sometimes referred to as "the cleansing agent of the present invention") containing the following components (A) and (B). (A) An ester of a fatty acid having 6 to 22 carbon atoms and a monohydric alcohol having 2 to 22 carbon atoms (B) Polyethylene glycol isostearate

[0012] The inventors of the present invention have conducted various studies to seek a cleansing agent that has excellent detergency and little residue feeling after rinsing. Among them, the inventors have found that a combination of a fatty acid ester and polyethylene glycol isostearate achieves a cleansing agent with excellent detergency and little residue feeling after rinsing, and have succeeded in creating a cleansing agent that meets the above problems. Based on such findings, the present invention has been completed.

[0013] ≪Ester of a fatty acid having 6 to 22 carbon atoms in component (A) and a monohydric alcohol having 2 to 22 carbon atoms≫ In the cleansing agent of the present invention, as component (A), it contains an ester of a fatty acid having 2 to 22 carbon atoms and a monohydric alcohol having 6 to 22 carbon atoms (hereinafter sometimes referred to as "fatty acid ester of component (A)"). Component (A) is not particularly limited as long as it is a component usually used in cosmetics and the like. Although not limited, the number of carbon atoms of the fatty acid in the fatty acid ester of component (A) is 6 to 22, preferably 8 to 16, and the number of carbon atoms of the monohydric alcohol is 2 to 22, preferably 8 to 16.

[0014] Examples of component (A) include isononanoate esters such as isononyl isononanoate and isotridecyl isononanoate, 2-ethylhexanoate esters such as cetyl ethylhexanoate and hexyldecyl ethylhexanoate, myristic acid esters such as isopropyl myristate, isocetyl myristate, and octyldodecyl myristate, isostearate esters such as ethyl isostearate, isopropyl isostearate, hexyldecyl isostearate, isostearyl isostearate, and isobutyl isostearate, oleate esters such as oleyl oleate and octyldodecyl oleate, and palmitate esters such as isopropyl palmitate and ethylhexyl palmitate. Among these, isononyl isononanoate, ethylhexyl palmitate, and cetyl ethylhexanoate are preferred. Commercially available products can be used. Component (A) may be one or a combination of two or more. A preferred embodiment includes combinations of two or more selected from isononyl isononanoate, ethylhexyl palmitate, and cetyl ethylhexanoate, such as a combination of isononyl isononanoate and ethylhexyl palmitate, or a combination of isononyl isononanoate and cetyl ethylhexanoate.

[0015] In the cleansing composition of the present invention, the content of component (A) is not limited to the total composition, particularly from the viewpoint of the cleansing effect of the cleansing composition, but may be, for example, 20% by mass or more, 40% by mass or more, 50% by mass or more, or 60% by mass or more, or 99.5% by mass or less, 99% by mass or less, 95% by mass or less, or 92% by mass or less, and may be any non-contradictory combination thereof. Furthermore, the content may be, for example, 20 to 99.5% by mass. When two or more types of component (A) are used in combination, the above content is the total amount of the two or more types. The blending ratio of the two or more types can be adjusted as appropriate.

[0016] ≪Component (B): Polyethylene glycol isostearate≫ The cleansing composition of the present invention contains polyethylene glycol isostearate as component (B). By containing components (A) and (B), the cleansing composition of the present invention can exhibit excellent cleansing power and less residue after rinsing. The ingredient (B) is not particularly limited as long as it is an ingredient commonly used in cosmetics, etc. The number of moles of ethylene oxide added to polyethylene glycol isostearate of component (B) is 8 to 20, preferably 8 to 12.

[0017] Component (B) is not limited to, but examples include PEG-8 isostearate, PEG-10 isostearate, PEG-12 isostearate, etc. Component (B) may be one or a combination of two or more. Commercially available products can be used.

[0018] In the composition of the present invention, the content of component (B) is not limited to the total composition, particularly from the viewpoint of reducing the residue feeling after rinsing off the cleansing agent. For example, it may be 0.5% by mass or more, 0.75% by mass or more, 1% by mass or more, or 2.5% by mass or more, or 10% by mass or less, 7.5% by mass or less, 6% by mass or less, or 5% by mass or less, and any non-consistent combination of these may be used. The content may also be, for example, 0.5 to 10% by mass. When two or more types of component (B) are used in combination, the above content is the total amount of the two or more types. The blending ratio of the two or more types can be adjusted as appropriate.

[0019] Furthermore, the mass ratio of component (A) to component (B) in this invention is expressed as the mass ratio of component (A) to component (B) (A) / (B), which provides excellent cleaning power and leaves little residue after rinsing. From this perspective, although not limited to, for example, 5 to 200 is preferred, and 10 to 40 is more preferred.

[0020] ≪Component (C): Alkyl-modified silicone≫ The cleansing composition of the present invention may contain alkyl-modified silicone as component (C). By containing component (C), the cleansing composition of the present invention can exhibit the effect of improved cleansing power (excellent makeup removal).

[0021] The alkyl-modified silicone of component (C) is not particularly limited as long as it is a component commonly used in cosmetics and the like. Preferably, the alkyl-modified silicone is a modified silicone having a structure in which an alkyl group having 6 to 12 carbon atoms is bonded as a side chain to a linear polysiloxane skeleton. The number of carbon atoms in the alkyl group is preferably 6 to 10, more preferably 7 to 9, and most preferably 8.

[0022] Component (C) is not limited to, but examples include caprylyl methicone. Component (C) may be one or a combination of two or more. Commercially available components can be used.

[0023] In the cleansing composition of the present invention, the content of component (C) is not limited to the total composition, particularly from the viewpoint of improving cleansing power, but may be, for example, 0.1% by mass or more, 0.5% by mass or more, 1% by mass or more, or 2.5% by mass or more, or 10% by mass or less, 7.5% by mass or less, 6% by mass or less, or 5% by mass or less, and may be any non-consistent combination thereof. Furthermore, the content may be, for example, 0.1 to 10% by mass. When two or more types of component (C) are used in combination, the above content is the total amount of the two or more types. The blending ratio of two or more types can be adjusted as appropriate.

[0024] ≪Cleansing product≫ The dosage form of the cleansing agent of the present invention is not particularly limited, and examples include lotion, emulsion, cream, oil, oil gel, and gel. Among these dosage forms, the oil-based type is particularly prone to causing residue after rinsing, so the cleansing agent of the present invention is preferably an oil-based cosmetic. An oil-based cosmetic refers to a cosmetic in which liquid, semi-solid, or solid oils or oil-soluble compounds are present as a continuous phase. The oil-based dosage form of the cleansing agent of the present invention is particularly preferred.

[0025] ≪Optional ingredients≫ Furthermore, the cleansing agent of the present invention may contain other optional ingredients, as long as they do not impair its effectiveness. The optional ingredients are not particularly limited and can be used as long as they are ingredients that can be commonly incorporated into cosmetics, etc. One or more optional ingredients may be used in combination in this invention.

[0026] Such ingredients include, for example, oils and waxes such as macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hydrogenated coconut oil, hydrogenated oil, Japanese wax, hydrogenated castor oil, beeswax, candelilla wax, carnauba wax, privet wax, lanolin, reduced lanolin, hard lanolin, jojoba wax, liquid paraffin, squalane, pristane, and ozoke. Hydrocarbons such as lye, paraffin, ceresin, petrolatum, and microcrystalline wax; higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, and undecylenic acid; higher alcohols such as cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, and cetostearyl alcohol; and dihydrogen adipate. Synthetic ester oils such as sopropyl, di-2-ethylhexyl sebatate, cetyl lactate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, glycerin di-2-heptylundecanoate, glycerin tri-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentane erythritol tetra-2-ethylhexanoate, etc.; linear polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane; cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane; modified polysiloxanes such as amino-modified polysiloxane, polyether-modified polysiloxane, fluorine-modified polysiloxane, etc., and silicone oils and other oils;

[0027] Anionic surfactants such as fatty acid soaps (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, and alkyl sulfate triethanolamine ether; cationic surfactants such as stearyltrimethylammonium chloride, benzalkonium chloride, and laurylamine oxide; imidazoline amphoteric surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine-based surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), and ash Amphoteric surfactants such as methyl taurine; sorbitan fatty acid esters (sorbitan monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hydrogenated castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbitan fatty acid esters (POE-sorbitan (e.g., POE monolaurate), POE glycerin fatty acid esters (e.g., POE-glycerin monoisostearate), POE fatty acid esters (e.g., polyethylene glycol monooleate, POE distearate), POE alkyl ethers (e.g., POE 2-octyldodecyl ether), POE alkylphenyl ethers (e.g., POE nonylphenyl ether), Pluronic® type, POE·POP alkyl ethers (e.g., POE·POP 2-decyltetradecyl ether), Tetronic, POE castor oil... Nonionic surfactants such as hydrogenated castor oil derivatives (POE castor oil, POE hydrogenated castor oil, etc.), sucrose fatty acid esters, and alkyl glucosides; polyethylene glycol, glycerin, 1,3-butylene glycol (1,3-BG), erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, and 1,2-octanediol;

[0028] Powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, etc., which may have a surface treatment; inorganic pigments such as red iron oxide, red iron oxide, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, Prussian blue, titanium dioxide, zinc oxide, which may have a surface treatment; pearlescent agents such as titanium mica, fish scale foil, bismuth oxychloride, etc., which may have a surface treatment; lake-formed Organic dyes such as Red 202, Red 228, Red 226, Yellow 4, Blue 404, Yellow 5, Red 505, Red 230, Red 223, Orange 201, Red 213, Yellow 204, Yellow 203, Blue 1, Green 201, Violet 201, Red 204, etc., organic powders such as polyethylene powder, polymethyl methacrylate, methyl methacrylate crosspolymer, nylon powder, organopolysiloxane elastomers, etc.

[0029] Para-aminobenzoic acid-based UV absorbers; anthranilic acid-based UV absorbers; salicylic acid-based UV absorbers; cinnamic acid-based UV absorbers; benzophenone-based UV absorbers; sugar-based UV absorbers; 2-(2'-hydroxy-5'-t-octylphenyl)benzotriazole, 4-meth UV absorbers such as xy-4'-t-butyldibenzoylmethane;

[0030] Lower alcohols such as ethanol and isopropanol; vitamin A or its derivatives, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or its derivatives, vitamin B 12 Vitamin B 15Examples include B vitamins or their derivatives; vitamin E derivatives such as α-tocopherol, β-tocopherol, γ-tocopherol, and vitamin E acetate; vitamin D derivatives; vitamin H, pantothenic acid, pantethine, pyrroloquinoline quinone, and other vitamins; activators such as royal jelly, photosensitizers, and cholesterol derivatives; blood circulation promoters such as nonylic acid vanenylamide, capsaicin, gingerol, and tannic acid; anti-seborrheic agents such as sulfur and thianthol; water-soluble polymers such as collagen, hyaluronic acid, and their salts; solvents such as water; film-forming agents such as trimethylsiloxysilicate; and fragrances.

[0031] In addition, the cleansing agent of the present invention may optionally contain various active ingredients, moisturizers, pH adjusters, preservatives, antibacterial agents, antioxidants, antioxidant aids, and the like.

[0032] Active ingredients include skin whitening ingredients, wrinkle-improving ingredients, anti-inflammatory ingredients, and plant and animal extracts.

[0033] As for whitening ingredients, there are no particular limitations as long as they are commonly used in cosmetics. For example, 4-n-butylresorcinol, ascorbic acid glucoside, 3-O-ethyl ascorbic acid, tranexamic acid, arbutin, ellagic acid, kojic acid, linoleic acid, nicotinamide, 5,5'-dipropylbiphenyl-2,2'-diol, 5'-adenylyl nitrate Examples include thorium, cetyl tranexamate, potassium 4-methoxysalicylate, hydroquinone, and pantothenic acid.

[0034] As for wrinkle-improving ingredients, there are no particular limitations as long as they are commonly used in cosmetics. Examples include sodium trifluoride isopropyl oxopropylaminocarbonylpyrrolidinecarbonylmethylpropylaminocarbonylbenzoylaminoacetate, nicotinamide, vitamin A or its derivatives (retinol, retinal, retinoic acid, tretinoin, isotretinoin, retinoic acid tocopherol, retinyl palmitate, retinyl acetate, etc.), benzyl ursolate, ursolic acid phosphate, benzyl betulinate, and benzyl acid phosphate.

[0035] Examples of anti-inflammatory components include clarinon, glabridin, glycyrrhizic acid, glycyrrhetinic acid, and pantothenyl alcohol, with glycyrrhizic acid and its salts being preferred, alkyl glycyrrhetinate and its salts, and glycyrrhetinic acid and its salts.

[0036] There are no particular limitations on the use of plant and animal-derived extracts, as long as they are commonly used in pharmaceuticals, cosmetics, food products, etc. For example, Akebia extract, Thujopsis dolabrata extract, Asparagus extract, Avocado extract, Hydrangea serrata extract, Almond extract, Arnica extract, Aloe extract, Aronia extract, Apricot extract, Ginkgo extract, Indian kino extract, Fennel extract, Aralia cordata extract, Rosehip extract, Eleutherococcus senticosus extract, Enmeisou extract, Scutellaria baicalensis extract, Phellodendron amurense extract, Coptis japonica extract, Panax ginseng extract, Hypericum perforatum extract, Lamium album extract, Orange extract, Arctium moniliforme extract, Pueraria lobata extract, Chamomile extract, Carrot extract, Artemisia capillaris extract, Licorice extract, Kiwi extract, Cucumber extract, Guava extract, Sophora flavescens extract, Gardenia extract, Sasa veitchii extract, Sophora flavescens extract, Walnut extract, Grapefruit extract, Black rice extract, Chlorella extract, Mulberry extract, Ligusticum sieboldii extract, Alpinia speciosa extract, Gentiana extract, Geranium thunbergii extract Su, black tea extract, burdock extract, rice extract, fermented rice extract, fermented rice bran extract, rice germ oil, lingonberry extract, salvia extract, soapwort extract, bamboo extract, hawthorn extract, sunflower extract, sansho pepper extract, shiitake mushroom extract, rehmannia extract, lithospermum extract, perilla extract, linden extract, meadowsweet extract, peony extract, ginger extract, calamus root extract, birch extract, horsetail extract, stevia extract, stevia ferment, ivy extract, sedge extract Hawthorn extract, elderberry extract, yarrow extract, peppermint extract, sage extract, mallow extract, Cnidium officinale extract, Swertia japonica extract, mulberry bark extract, rhubarb extract, soybean extract, jujube extract, thyme extract, dandelion extract, tea extract, clove extract, citrus peel extract, sweet tea extract, chili pepper extract, angelica extract, calendula extract, peach kernel extract, spruce extract, Houttuynia cordata extract, tomato extract, natto extract, carrot extract, ni Garlic extract, wild rose extract, hibiscus extract, Ophiopogon extract, lotus extract, parsley extract, birch extract, witch hazel extract, Isodon japonicus extract, cypress extract, loquat extract, coltsfoot extract, butterbur extract, Poria extract, butcher's broom extract, grape extract, grape seed extract, loofah extract, safflower extract, peppermint extract, linden extract, peony extract, hop extract, pine extract, marjoram extract, horse chestnut extract, skunk cabbage extract, Preferred extracts include soapberry extract, lemon balm extract, mozuku extract, peach extract, cornflower extract, eucalyptus extract, saxifrage extract, yuzu extract, lily extract, coix seed extract, mugwort extract, lavender extract, green tea extract, apple extract, rooibos tea extract, reishi mushroom extract, lettuce extract, lemon extract, forsythia extract, astragalus extract, rose extract, rosemary extract, Roman chamomile extract, royal jelly extract, and burnet extract.

[0037] Examples of humectants include polyethylene glycol, propylene glycol, glycerin, 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.

[0038] Examples of pH adjusting agents include buffering agents such as lactate-sodium lactate, citrate-sodium citrate, and succinate-sodium succinate.

[0039] Examples of preservatives include methylparaben, ethylparaben, butylparaben, and phenoxyethanol.

[0040] As antibacterial agents, synthetic agents such as 1,3-butylene glycol and parahydroxybenzoic acid esters are preferred, as are natural antibacterial substances such as caprylyl glycol, glyceryl caprylate, ethylhexylglycerin, and caprylhydroxamic acid.

[0041] Examples of antioxidants include tocopherols, dibutylhydroxytoluene, butylhydroxyanisole, and gallic acid esters. 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.

[0042] Examples of preferred optional components in the cleansing agent of the present invention other than those mentioned above include dextrin fatty acid esters. The fatty acids constituting the dextrin fatty acid ester are preferably those having 8 to 20 carbon atoms, and particularly preferably palmitic acid and 2-ethylhexanoic acid. Yes, such dextrin fatty acid esters are commercially available, and such commercially available products can be purchased and used. For example, a particularly preferred example of such a commercially available product is "Leopal-TT2" ((palmitic acid / ethylhexanoic acid) dextrin), sold by Chiba Flour Milling Co., Ltd. Such components form a gel structure in the cleansing oil and have the effect of stabilizing the formulation. In particular, in order to achieve such an effect, it is preferable to include such components in the total amount of the cleansing product at 0.5 to 5% by mass, or 2 to 5% by mass.

[0043] These optional components may be added at any step in the method for producing the cleansing agent of the present invention, or before or after that step.

[0044] The method for producing the cleansing compound of the present invention is not particularly limited, as long as it contains essential components within a specific range. Known methods commonly used in the field of cosmetics and the like can be appropriately employed for the production method; for example, it can be obtained by mixing and stirring the components.

[0045] The cleansing agent of the present invention can be selected to have various properties, such as liquid, emulsion, cream, solid, or semi-solid. [Examples]

[0046] The present invention will be specifically described below with reference to examples, but these are merely illustrative examples of the present invention, and the scope of the present invention is not limited thereto.

[0047] <Preparation of cleansing product> Each component of the formulation shown in Table 1 was uniformly mixed to obtain an oily composition (oil cleanser). The obtained sample was then evaluated for its properties as follows.

[0048] <Evaluation Method> (Cleaning power, residue after rinsing) (1) Mascara was applied to the artificial skin and allowed to dry for 5 minutes. (2) Two drops of each sample were applied. (3) Rub the mascara five times and compare and evaluate its dissolving power, i.e., its cleaning power. (4) Rinse under running water for 10 seconds. (5) After wiping with a tissue for 10 seconds, the remaining feeling after rinsing was compared and evaluated.

[0049] <Result> The results are shown in Figure 1. Regarding cleaning power, the sample in the example showed that the mascara dissolved well in the composition, demonstrating excellent cleaning power. On the other hand, the sample in the comparative example did not dissolve well in the composition, leaving solid residue. Regarding the residue after rinsing, the sample in the example showed little residue of the composition on the artificial skin, resulting in a minimal residue after rinsing. On the other hand, residue of the composition was observed on the artificial skin in the sample in the comparative example.

[0050] [Table 1]

[0051] <Evaluation Method> (Emulsified particle size) (1) 0.5 g of each oily composition sample and 50 g of water were placed in a glass container. (2) Stirred in a vortex mixer for 10 seconds. (3) The particle size of the emulsion was measured using dynamic light scattering (DLS) with ELSZ-2000ZS (manufactured by Otsuka Electronics Co., Ltd.). (Cumulant analysis).

[0052] <Result> The results are shown in Table 1. It was found that the cleansing agent of the present invention has small emulsion particles and excellent rinseability.

[0053] The following are examples of formulations for the cleansing agent of the present invention, but the present invention is not limited to these formulations.

[0054] <Formulation Example 1> (Oil Cleansing Agent) (Mass %) Ethylhexyl palmitate 60% Isononyl isononanoate 25% PEG-12 Isostearate 5% Caprylyl Methicone 5% (Palmitic acid / ethylhexanoic acid) dextrin 4% water 1% The cleansing product in formulation example 1 had excellent cleansing power and left little residue after rinsing. [Industrial applicability]

[0055] This invention can be applied to cosmetics and the like, including quasi-drugs.

Claims

1. A cleansing product containing the following ingredients (A) and (B). (A) Esters of fatty acids with 6 to 22 carbon atoms and monohydric alcohols with 2 to 22 carbon atoms. (B) Polyethylene glycol isostearate

2. The cleansing agent according to claim 1, wherein component (A) is an ester of a fatty acid having 8 to 16 carbon atoms and a monohydric alcohol having 8 to 16 carbon atoms.

3. The cleansing agent according to claim 1, wherein component (A) is one or more selected from isononyl isononanoate, ethylhexyl palmitate, and cetyl ethylhexanoate.

4. The cleansing agent according to claim 1, wherein the number of moles of ethylene oxide added to component (B) is 8 to 20.

5. The cleansing agent according to claim 1, wherein the component (B) is one or more selected from PEG-8 isostearate, PEG-10 isostearate, and PEG-12 isostearate.

6. The cleansing agent according to claim 1, wherein the content of (A) is 20 to 99.5% by mass of the whole composition.

7. The cleansing agent according to claim 1, wherein the content of (B) is 0.5 to 10% by mass relative to the whole composition.

8. Furthermore, the cleansing agent according to claim 1 contains component (C) alkyl-modified silicone.

9. The cleansing composition according to claim 8, wherein the aforementioned component (C) is caprylyl methicone.

10. The cleansing agent according to claim 1, which is an oil-based cleansing agent.

11. The cleansing agent according to claim 1, which is an oil cleansing agent.

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