Makeup removal composition, preparation method thereof and makeup removal product

Abstract

The invention relates to the technical field of cosmetics, in particular to a makeup removal composition, a preparation method thereof and a makeup removal product. The makeup removing composition is prepared from grease, polyhydric alcohol and an emulsifying agent according to the weight ratio of (10 to 20): (0.5 to 10): (2 to 10), the grease comprises one or more of first grease and second grease; the first grease comprises one or more of ether grease, alkane grease and ester grease; the second grease is selected from pegylated alkanoic acid glyceride compounds; the polyol comprises one or more of a first polyol and a second polyol; the first polyhydric alcohol comprises a diol compound; the second polyol comprises an alkyl glyceryl ether compound. The makeup removing composition and the makeup removing product have efficient makeup removing power and also have a water-based refreshing skin feeling.

Description

Technical Field

[0001] This application relates to the field of cosmetic technology, and in particular to makeup removal compositions, methods for their preparation, and makeup removal products. Background Technology

[0002] With the diversification of makeup products, especially the widespread use of waterproof, long-lasting, and film-forming formulas in products such as lipsticks, mascaras, and foundations, consumers have placed higher demands on the cleansing power of makeup removers. At the same time, modern skincare concepts emphasize both effective cleansing and a refreshing feel and ease of use, which presents new challenges to the formulation design of makeup removers.

[0003] Currently, commercially available makeup removers can be mainly divided into the following three categories according to their continuous phase and emulsification system characteristics: (1) Cleansing oils / balms. These products use the oil phase as the continuous phase and, through the principle of "like dissolves like", have a strong dissolving ability for waterproof makeup (such as long-lasting lipstick, waterproof mascara, and long-lasting foundation) with high oil and film-forming agent content. However, such products feel oily after use and rely on secondary cleansing (such as facial cleanser) to remove residual oil. The operation steps are complicated. In addition, such products need to be fully rubbed to emulsify the oil phase before use. If the emulsification process is not sufficient, the residual oil and emulsifier may clog the hair follicle opening, induce blackheads or closed comedones, and are not friendly to oily and acne-prone skin. (2) Makeup remover / Micelle water: such products use the water phase as the continuous phase and use micellar technology to encapsulate low concentration surfactants in water. They capture dirt through micellar solubilization. Their biggest advantage is that the texture is refreshing and does not require water rinsing or secondary cleansing, making it convenient to use. However, due to the limited oil carrying capacity of micelles and the total content of surfactants, this system is significantly insufficient in removing waterproof makeup with high adhesion, high film-forming properties, or high degree of polymerization; (3) Cleansing Lotions / Creams: These products use an oil-in-water (O / W) emulsion system. The original intention of these products is to balance the makeup removal power and the refreshing feeling. The O / W system includes a certain proportion of oil phase. By increasing the proportion of oil phase, the makeup removal power of waterproof makeup can be improved, but it will make the skin feel heavy and sticky. Reducing the proportion of oil phase can make the skin feel refreshing, but the removal effect is weaker. Therefore, in practical applications, this type of product faces the dilemma that the makeup removal effect is not as good as that of cleansing oil / cleansing balm and the skin feel is not as good as that of cleansing water / micelle water; In addition, some O / W systems containing high molecular polymers will cause the high molecular polymers to concentrate after repeated application or water evaporation, resulting in pilling, which seriously affects the user experience.

[0004] Therefore, developing a makeup remover that is effective at removing makeup while also leaving a refreshing feeling on the skin has become a pressing technical problem to be solved in this field. Summary of the Invention

[0005] Based on this, one or more embodiments of this application provide makeup removal compositions, methods for preparing the same, and makeup removal products, which have highly effective makeup removal power and a water-based refreshing feel.

[0006] The first aspect of this application provides a makeup removal composition comprising oils, polyols, and emulsifiers in a weight ratio of (10-20):(0.5-10):(2-10);

[0007] The composition of the grease includes one or more of a first grease and a second grease;

[0008] The first oil includes one or more of ether oils, alkane oils, and ester oils;

[0009] The chemical formula of the ether-based oil is R. 11 -OR 12 The chemical formula of the alkane-based oil is CH3-CH(CH3)-R. 13 The chemical formula of the ester oil is R. 14 -OC(=O)-R 15 Among them, R 11 R 12 R 13 R 14 and R 15 Selected independently from C 8-12 Straight-chain alkanes;

[0010] The second oil is selected from polyethylene glycol-modified alkyl glycerol esters;

[0011] The composition of the polyol includes one or more of a first polyol and a second polyol;

[0012] The first polyol includes diol compounds; the second polyol includes alkyl glycerol ether compounds.

[0013] In some embodiments, the weight ratio of the first grease to the second grease is (0.2-4):1;

[0014] The weight ratio of the first polyol to the second polyol is (20-40):1.

[0015] In some embodiments, the makeup remover composition has one or more of the following characteristics:

[0016] (1) The ether oils include one or more of dioctyl ether, didecyl ether, and octyldecyl ether;

[0017] (2) The alkane oils include one or more of isododecane, isotridecane, isotetradecane and isopentadecadecane;

[0018] (3) The ester oils include one or more of the following: coconut oil-caprylate / caprylate, lauryl caprylate, lauryl caprylate, octyl octanoate, decyl decanoate, and lauryl laurate;

[0019] (4) The polyethylene glycolated alkyl glycerol esters include one or more of PEG-4 octanoic acid / decanoic acid glycerol ester, PEG-6 octanoic acid / decanoic acid glycerol ester and PEG-8 octanoic acid / decanoic acid glycerol ester.

[0020] In some embodiments, the diol compound includes one or more of small molecule diols and polyethylene glycol;

[0021] The small molecule diol has 2-10 carbon atoms;

[0022] The polyethylene glycol has a molecular weight of 200-800; and / or,

[0023] The chemical formula of the alkylglycerol ether compound is: ;R 16 Selected from C 8-12 Straight-chain alkanes or C 8-12 Branched alkanes.

[0024] In some embodiments, the makeup remover composition has one or more of the following characteristics:

[0025] (1) The small molecule polyols include one or more of ethylene glycol, dipropylene glycol, 1,2-propanediol, 1,3-propanediol, 1,3-butanediol, 1,2-pentanediol and octanoic acid alcohol;

[0026] (2) The polyethylene glycol includes one or more of PEG-200, PEG-400, PEG-600 and PEG-800;

[0027] (3) The alkyl glycerol ethers include one or more of ethylhexylglycerol, octyloxyglycerol, decyl glycerol ether and pentyl glycerol ether.

[0028] In some embodiments, the emulsifier includes one or more of polyglycerol emulsifiers, polyether emulsifiers, and fatty alcohol emulsifiers;

[0029] Optionally, the polyglycerol emulsifier includes one or more of PEG-100 glycerol stearate, PEG-20 glycerol triisostearate, polyglycerol-3-methylglucose distearate, polyglycerol-10 stearate, polyglycerol-6 distearate, and polyglycerol-4 isostearate;

[0030] Optionally, the polyether emulsifier includes one or more of cetearyl alcohol polyether-6, cetearyl alcohol polyether-25, cetearyl alcohol polyether-12, cetearyl alcohol polyether-20, stearyl alcohol polyether-2, stearyl alcohol polyether-21 and behenyl alcohol polyether-10;

[0031] Optionally, the emulsifier includes one or more of cetearyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, arachidyl alcohol, and myristyl alcohol.

[0032] In some embodiments, the emulsifier comprises the polyglycerol emulsifier, the polyether emulsifier, and the fatty alcohol emulsifier in a weight ratio of (2-8):1:(0.4-0.6).

[0033] A second aspect of this application provides a makeup remover product comprising the makeup remover composition and dispersion medium described above.

[0034] In some embodiments, the makeup remover product comprises, by weight percentage: 20%-30% of the makeup remover composition, 60%-80% of the dispersion medium, and 0%-10% of the auxiliary agent;

[0035] Optionally, the additives include one or more of thickeners, preservatives, and flavorings.

[0036] In some embodiments, the makeup remover product comprises, by weight percentage: 20%-30% of the makeup remover composition, 67%-79% of the dispersion medium, 0.5%-1.5% of the thickener, 0.1%-1% of the preservative, and 0.05%-0.5% of the fragrance.

[0037] The makeup removal composition and product of this application combine oils, polyols, and emulsifiers in appropriate proportions. During use, the makeup-removing oils are stably dispersed in a continuous dispersion medium (such as water) in the form of extremely fine, uniform oil droplets, forming a stable "water-oil core" structure. This structure presents a refreshing water-based texture on a macroscopic level, but contains enough oil phase units on a microscopic level to dissolve heavy makeup (such as waterproof lip gloss). During application, with the shear force of massage and the effect of skin temperature, the "water-oil core" structure undergoes a locally controllable phase transformation, and the oil droplets break emulsification and instantly polymerize into a continuous oil film, effectively dissolving makeup. When rinsed with water, the hydrophilic components in the formula can quickly re-emulsify into the "water-oil core" structure, allowing the oils encapsulating makeup to be easily carried away by the water flow. This process perfectly replicates the traditional makeup removal steps of "apply oil first, then emulsify" for makeup removal oils / balms, but integrates them into one step, achieving both highly effective cleansing and a refreshing skin feel.

[0038] The makeup removal composition and product of this application abandon the sticky feeling caused by the excessive thickeners in traditional W / O type cleansing balms. Instead, it uses an appropriate proportion of polyols, combined with an appropriate proportion of oil phase and emulsifier, to create a refreshing base with high water content and low stickiness. This avoids the "pilling" phenomenon caused by excessive thickeners in traditional formulas. Even after makeup removal and water evaporation, a light moisturizing layer is left on the skin surface, rather than sticky residue. In some embodiments, one or more adjuvants, including thickeners, may be added to improve stability, fragrance, etc., but the makeup removal effect does not depend on the addition of these adjuvant ingredients. In some embodiments, the makeup removal product of this application combines an appropriate proportion of oils, polyols, emulsifiers, thickeners, and water to achieve excellent makeup removal effect while also having good storage stability, being resistant to high and low temperature storage, and not easily separating.

[0039] The makeup removal composition and product of this application achieve a dynamic skin feel path of "water first, then oil, then back to water" in terms of skin feel. When the user touches the makeup removal composition, the first experience is the cool and moisturizing feeling brought by the external water phase. During the application and massage, as the phase transformation occurs, the user can feel the smoothness of the oil fully dissolving the makeup. However, this process is short and not greasy. After rinsing with water, the makeup removal composition quickly returns to its original water-based state, with no oil film residue. The skin feels clean, clear and moisturized, without tightness or slippery feeling.

[0040] From the moment the makeup removal composition and product of this application are squeezed out, spread, massaged for makeup removal, and finally rinsed off, the viscosity curve and thixotropy of the product are always maintained within an ideal and controllable range. This ensures both smoothness during application and sufficient adhesion to dissolve makeup during massage, and prevents the product from becoming sticky or pulling on the skin due to water evaporation or shear force throughout the process. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0042] Figure 1 The images show the makeup removal effect of the makeup removal compositions of some embodiments of this application.

[0043] Figure 2 The images show the makeup removal effects of the makeup removal compositions in some comparative examples and embodiments of this application.

[0044] Figure 3Images showing the makeup removal effect of commercially available makeup remover products. Detailed Implementation

[0045] The present application is further described below with reference to embodiments and examples. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the application. Furthermore, it should be understood that after reading the teachings of this application, those skilled in the art can make various alterations or modifications to this application, and these equivalent forms also fall within the protection scope of the appended claims.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] In this application, "multiple" includes two or more.

[0048] The term "and / or" as used herein includes any one of two or more related listed items, as well as any and all combinations of the related listed items. These arbitrary and all combinations encompass any two related listed items, any more related listed items, or a combination of all related listed items. It should be noted that when at least three items are connected by at least two conjunctions selected from "and / or," "or / and," and "and / or," it should be understood that, in this application, the technical solution undoubtedly includes solutions connected by "logical AND," and also undoubtedly includes solutions connected by "logical OR." For example, "A and / or B" includes three parallel solutions: A, B, and A+B. For example, the technical solution of "A, and / or, B, and / or, C, and / or, D" includes any one of A, B, C, and D (that is, a technical solution that is connected by "logical OR"), as well as any and all combinations of A, B, C, and D, that is, combinations of any two or three of A, B, C, and D, and also combinations of all four of A, B, C, and D (that is, a technical solution that is connected by "logical AND").

[0049] In this document, "preferred" is only used to describe a better implementation method or embodiment, and should be understood as not constituting a limitation on the scope of protection of this application.

[0050] In this application, "further" is used to describe the purpose and indicate differences in content, but should not be construed as a limitation on the scope of protection of this application.

[0051] In this application, the technical features described in an open-ended manner include both closed technical solutions consisting of the listed features and open technical solutions that include the listed features.

[0052] In this application, numerical intervals (i.e., numerical ranges) are involved. Unless otherwise specified, optional numerical distributions within the aforementioned numerical intervals are considered continuous and include the two endpoints (i.e., the minimum and maximum values) of the numerical range, as well as every value between these two endpoints. Unless otherwise specified, when a numerical interval points to integers within that interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints. Furthermore, when multiple ranges are provided to describe features or characteristics, these ranges may be merged. In other words, unless otherwise specified, the ranges disclosed herein should be understood to include any and all subranges to which they are included.

[0053] In this application, weight can be a well-known unit of mass in the cosmetics field, such as μg, mg, g, or kg.

[0054] The first aspect of this application provides a makeup removal composition comprising oils, polyols, and emulsifiers in a weight ratio of (10-20):(0.5-10):(2-10);

[0055] The composition of fats and oils includes one or more of the first fat and second fat;

[0056] The first category of oils includes one or more of the following: ether oils, alkane oils, and ester oils;

[0057] The chemical formula for ether-based fats is R. 11 -OR 12 The chemical formula for alkane-based fats is CH3-CH(CH3)-R. 13 The chemical formula for esters is R. 14 -OC(=O)-R 15 Among them, R 11 R 12 R 13 R 14 and R 15 Selected independently from C 8-12 Straight-chain alkanes (such as n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, etc.);

[0058] The second oil is selected from polyethylene glycol-modified alkyl glycerides;

[0059] The composition of polyols includes one or more of a first polyol and a second polyol;

[0060] The first polyol includes diol compounds; the second polyol includes alkyl glycerol ether compounds.

[0061] In some embodiments, the oil in the makeup remover composition is a first oil. Preferably, the makeup remover composition comprises an oil, a polyol, and an emulsifier in a weight ratio of (10-20):(0.5-1):(5-10). Preferably, the first oil is selected from ether-based oils.

[0062] In some embodiments, the grease includes a first grease and a second grease.

[0063] Preferably, the first oil is selected from ether-based oils, and the second oil is selected from polyethylene glycol-modified alkyl glycerol esters.

[0064] Preferably, the makeup remover composition comprises oils, polyols, and emulsifiers in a weight ratio of (10-20):(5-10):(5-10).

[0065] In some embodiments, since the oil is purchased as a compound, such as SAPPCHEM MP70, it comprises, by weight percentage: 58%-63% 1,3-propanediol (diol), 22%-27% PEG-6 caprylic / capric triglyceride, and 15%-20% poloxamer 184 (emulsifier). Appropriate amounts of alcohol and emulsifier may be introduced when adding the oil, provided it does not affect the weight ratio of oil, polyol, and emulsifier in the makeup remover composition being (10-20):(0.5-10):(2-10).

[0066] In some embodiments, the weight ratio of the first grease and the second grease is (0.2-4):1, for example 0.2:1, 0.3:1, 0.4:1, 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 2:1, 3:1, 4:1, etc.

[0067] In some embodiments, the weight ratio of the first polyol to the second polyol is (20-40):1, for example 20:1, 25:1, 30:1, 35:1, 40:1, etc.

[0068] In some embodiments, ether oils include one or more of dioctyl ether, didecyl ether, and octyldecyl ether;

[0069] In some embodiments, alkane oils include one or more of isododecane, isotridecane, isotetradecane, and isopentadecadecane.

[0070] In some embodiments, the ester oils include one or more of coconut oil-caprylate / caprate, lauryl caprylate, lauryl caprate, octyl octanoate, decyl decanoate, and lauryl laurate.

[0071] In some embodiments, the polyethylene glycolated alkyl glycerol compounds include one or more of PEG-4 octanoic acid / decanoic acid glycerol, PEG-6 octanoic acid / decanoic acid glycerol, and PEG-8 octanoic acid / decanoic acid glycerol.

[0072] In some embodiments, the diol compound includes one or more of small molecule diols and polyethylene glycol;

[0073] Small molecule diols have 2-10 carbon atoms;

[0074] The molecular weight of polyethylene glycol is 200-800.

[0075] In some embodiments, the chemical formula of the alkylglycerol ether compound is: ;R 16 Selected from C 8-12 Straight-chain alkanes (such as n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, etc.) or C 8-12 Branched alkanes (such as 2,2,4-trimethylpentyl, 2-methyloctyl, 2,2-dimethyloctyl, 3-ethyl-2-methylheptyl).

[0076] In some embodiments, the small molecule polyol includes one or more of ethylene glycol, dipropylene glycol, 1,2-propanediol, 1,3-propanediol, 1,3-butanediol, 1,2-pentanediol, and octanoic acid alcohol.

[0077] In some embodiments, polyethylene glycol includes one or more of PEG-200, PEG-400, PEG-600, and PEG-800.

[0078] In some embodiments, alkyl glycerol ethers include one or more of ethylhexylglycerol, octyloxyglycerol, decylglycerol ether, and pentylglycerol ether.

[0079] In some embodiments, the emulsifier includes one or more of polyglycerol emulsifiers, polyether emulsifiers, and fatty alcohol emulsifiers.

[0080] Optionally, the polyglycerol emulsifier includes one or more of PEG-100 glycerol stearate, PEG-20 glycerol triisostearate, polyglycerol-3-methylglucose distearate, polyglycerol-10 stearate, polyglycerol-6 distearate, and polyglycerol-4 isostearate.

[0081] Optionally, the polyether emulsifier includes one or more of cetearyl alcohol polyether-6, cetearyl alcohol polyether-25, cetearyl alcohol polyether-12, cetearyl alcohol polyether-20, stearyl alcohol polyether-2, stearyl alcohol polyether-21, and behenyl alcohol polyether-10. In some embodiments, the polyether emulsifier may be selected from poloxamer (polyoxyethylene polyoxypropylene ether block copolymer).

[0082] Optionally, the emulsifier includes one or more of cetearyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, arachidyl alcohol, and myristyl alcohol.

[0083] In some embodiments, the emulsifier includes polyglycerol emulsifiers, polyether emulsifiers, and fatty alcohol emulsifiers in a weight ratio of (2-8):1:(0.4-0.6). The weight ratio of the polyglycerol emulsifiers, polyether emulsifiers, and fatty alcohol emulsifiers can be 2:1:0.4, 4:1:0.4, 6:1:0.4, 8:1:0.4, 2:1:0.5, 4:1:0.5, 6:1:0.5, 8:1:0.5, 2:1:0.6, 4:1:0.6, 6:1:0.6, 8:1:0.6, etc.

[0084] A second aspect of this application provides a makeup remover product comprising the makeup remover composition and dispersion medium described above.

[0085] In some embodiments, the makeup remover product comprises, by weight percentage: 20%-30% of a makeup remover composition, 60%-80% of a dispersion medium, and 0%-10% of an auxiliary agent; wherein the weight percentage of the makeup remover composition may be 20%, 22%, 25%, 28%, 30%, etc.; the weight percentage of the dispersion medium may be 60%, 65%, 70%, 75%, 80%, etc.; and the weight percentage of the auxiliary agent may be 0%, 1%, 2%, 5%, 8%, 10%, etc.

[0086] Optionally, the additives include one or more of thickeners, preservatives, and flavorings.

[0087] In some embodiments, the makeup remover product comprises, by weight percentage: 20%-30% of a makeup remover composition, 69%-79% of a dispersion medium, and 0.5%-1.5% of a thickener.

[0088] In some embodiments, the makeup remover product comprises, by weight percentage: 20%-30% of a makeup remover composition, 67.5%-79% of a dispersion medium, 0.5%-1.5% of a thickener, and 0.1%-1% of a preservative.

[0089] In some embodiments, the makeup remover product comprises, by weight percentage: 20%-30% of a makeup remover composition, 67%-79% of a dispersion medium, 0.5%-1.5% of a thickener, 0.1%-1% of a preservative, and 0.05%-0.5% of a fragrance.

[0090] In some embodiments, the dispersion medium is water.

[0091] The following are some specific examples.

[0092] For experimental parameters not specified in the following specific embodiments, please refer to the guidelines given in this application document first, or refer to experimental manuals or other experimental methods known in the art, or refer to the experimental conditions recommended by the manufacturer.

[0093] The raw materials and reagents involved in the following specific embodiments can be obtained commercially or prepared by those skilled in the art using known methods.

[0094] Table 1. Raw materials used in the embodiments and comparative examples of this application.

[0095]

[0096] Performance testing methods:

[0097] 1. Makeup removal power test method

[0098] Using Maybelline Ultra Matte Liquid Lipstick 118N, apply an appropriate amount evenly to the front of your arm and let it dry for 30 minutes. Then, take 1 gram of sample (such as the lotion prepared in the example or comparative example, or existing cleansing milk, cleansing oil 1, double-layer eye and lip makeup remover, cleansing oil 2, cleansing water, etc.) and place it on the makeup surface. Then, rub it in a circular motion with your fingers for 1 minute and record the time it takes for the makeup to completely dissolve. Rinse off any remaining makeup with water and take a photo.

[0099] 2. Skin feel test method

[0100] Volunteers were given samples (such as lotions prepared in the examples or comparative studies, or existing cleansing milks, cleansing oils 1, double-layer eye and lip makeup removers, cleansing oils 2, cleansing waters, etc.) to try. After removing makeup from their faces, volunteers experienced a refreshing feeling after rinsing. They rated the skin feel after washing on a scale of 1 to 5, with higher scores indicating a better refreshing feeling.

[0101] 3. Stability Testing Methods

[0102] (1) Centrifugation test: Put about 20 grams of sample into a centrifuge tube, turn on the centrifuge and centrifuge at 3000 rpm for 30 minutes, and observe whether the material is uniform.

[0103] (2) High and low temperature test: The sample was placed in a 20 ml transparent PET bottle, sealed, and placed in a constant temperature incubator at 45℃ and 5℃ respectively. After one month, the sample was taken out and the appearance and uniformity of the material were observed. Judgment criteria: The material was unstable if it showed stratification, i.e., oil-water separation and viscosity decrease; the material was stable if it was similar to the sample at room temperature, uniform overall, and the appearance did not change significantly.

[0104] 1. Prepare freshly mixed makeup remover.

[0105] Examples 1-8

[0106] 1. Prepare the makeup remover composition according to Table 2.

[0107] Table 2. Components and parts by weight of the makeup remover compositions of Examples 1-8

[0108]

[0109] 2. Weigh out a sufficient amount of deionized water using a beaker, so that the total weight of the makeup remover composition and deionized water is 100 parts.

[0110] 3. Add the oil, polyol and emulsifier to the beaker in sequence and mix. Heat the mixture in a water bath and stir for 30 minutes at 80℃ and 150-200 rpm to make the material completely dispersed and uniform. Then homogenize at 5000 rpm for 5 minutes.

[0111] Example 9

[0112] This embodiment uses the same formulation and preparation method as Example 4, except that dipropylene glycol is replaced with 1,3-propanediol.

[0113] Example 10

[0114] This embodiment uses the same formulation and preparation method as Example 4, except that dipropylene glycol is replaced with 1,2-propanediol.

[0115] Example 11

[0116] This embodiment uses the same formulation and preparation method as Example 4, except that dipropylene glycol is replaced with PEG-400.

[0117] Example 12

[0118] This embodiment uses the same formulation and preparation method as Example 4, except that dipropylene glycol is replaced with 1,3-butanediol.

[0119] Example 13

[0120] This embodiment uses the same formula and preparation method as Example 4, except that the amount of ethylhexylglycerin is increased to 0.5 parts and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0121] Example 14

[0122] This embodiment uses the same formulation and preparation method as Example 4, except that the weight percentage of ethylhexylglycerin is increased to 1 part based on Example 4, and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0123] Example 15

[0124] This embodiment uses the same formula and preparation method as Example 4. The difference is that, based on Example 4, the weight percentage of cetearyl alcohol (also known as cetearyl alcohol) is increased to 1 part, and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0125] Example 16

[0126] This embodiment uses the same formula and preparation method as Example 4. The difference is that the weight percentage of cetearyl alcohol (also known as cetearyl alcohol) is increased to 2 parts based on Example 4, and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0127] Example 17

[0128] This embodiment uses essentially the same formulation and preparation method as Example 4, except that PEG-20 glycerol triisostearate is replaced with polyglycerol 10-laurate in addition to the formulation used in Example 4.

[0129] Example 18

[0130] This embodiment uses essentially the same formula and preparation method as Example 4, except that A-165 is not added based on Example 4.

[0131] Example 19

[0132] This embodiment uses the same formulation and preparation method as Example 4. The difference is that, based on Example 4, the weight percentage of PEG-6 caprylic / capric triglyceride is increased to 3 parts, the weight percentage of dioctyl ether is increased to 3 parts, and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0133] Example 20

[0134] This embodiment uses the same formulation and preparation method as Example 4. The difference is that, based on Example 4, the weight percentage of PEG-20 glyceryl triisostearate is reduced to 1 part, and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0135] Example 21

[0136] This embodiment uses the same formulation and preparation method as Example 4, except that dioctyl ether is replaced with dioctyl carbonate.

[0137] Example 22

[0138] This embodiment uses the same formulation and preparation method as Example 4, except that dioctyl ether is replaced with glycerol tri(ethylhexanoate) ester.

[0139] Example 23

[0140] This embodiment uses the same formulation and preparation method as Example 4, except that dioctyl ether is replaced with diisopropyl sebacate.

[0141] The photographic results of some embodiments are as follows: Figure 1 .

[0142] Table 3 Comparison of makeup removal power, makeup dissolving time, and skin feel test results for each embodiment.

[0143]

[0144] The makeup removal composition of this application limits the weight ratio of oils, polyols, and emulsifiers within a suitable range, and defines suitable types of oils and polyols, so that the composition can form a stable "water-oil core" structure in water. This allows oil droplets to controllably break emulsify and polymerize into a continuous oil film to dissolve makeup when applied, and can be quickly re-emulsified and washed away by water after contact with water. The emulsifier precisely controls the strength of the interfacial film to ensure that the process is reversible, thereby realizing a dynamic makeup removal process of "water first, then oil, then water again", which is highly effective in cleaning and leaves the skin feeling refreshed.

[0145] As shown in Table 3, the makeup removal time of Examples (1-23) was between 26 and 58 seconds, and the refreshing feeling score was generally above 4.0 (most reached 4.5 or higher). This proves that the makeup removal composition of this application has the advantages of good makeup removal effect and refreshing skin feel.

[0146] Comparative Example 1

[0147] The comparative example uses the same formulation and preparation method as Example 4, except that polyols are not used and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0148] Comparative Example 2

[0149] The comparative example uses the same formula and preparation method as Example 4, except that the amount of oil is increased to 25 parts and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0150] Comparative Example 3

[0151] The comparative example uses the same formula and preparation method as Example 4, except that the amount of oil is reduced to 2 parts and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0152] Comparative Example 4

[0153] The comparative example uses essentially the same formulation and preparation method as Example 4, except that the oil is propyl heptyl octanoate alone, in parts of 4 by weight.

[0154] Comparative Example 5

[0155] The comparative example uses essentially the same formulation and preparation method as Example 4, except that the oil is a single C15-19 isoalkane, with a weight of 4 parts.

[0156] Comparative Example 6

[0157] The comparative example uses essentially the same formulation and preparation method as Example 4, except that the oil is isooctyl palmitate alone, with a weight of 4 parts.

[0158] Comparative Example 7

[0159] The comparative example uses essentially the same formulation and preparation method as Example 4, except that the oil is a single isononyl isononanoate, with a weight of 4 parts.

[0160] Comparative Example 8

[0161] The comparative example uses essentially the same formulation and preparation method as Example 4, except that the oil is a single isohexadecane, with a weight of 4 parts.

[0162] Comparative Example 9

[0163] The comparative example uses essentially the same formulation and preparation method as Example 4, except that the oil is a single sorbitol polyether-30 tetraoleate, in parts by weight of 4.

[0164] Comparative Example 10

[0165] The comparative example uses the same formulation and preparation method as Example 3, except that the weight of SAPPCHEM MP70 is reduced to 5 parts and the weight of deionized water is adjusted accordingly to ensure that the total amount of makeup remover composition and deionized water is 100 parts.

[0166] Table 4. Results of makeup removal power, makeup dissolving time, and skin feel tests for each comparative example.

[0167]

[0168] As shown in Table 4, Comparative Examples 1 and 3-10 had poor makeup removal effects, while Comparative Examples 1-2 and 5-8 had poor refreshing feel evaluations. None of the above comparative examples could simultaneously achieve both a refreshing feel and effective makeup removal. Comparative Example 1 lacked polyols, making it impossible to construct a "water-in-oil core" structure, resulting in poor makeup removal. Comparative Example 2 used excessive oil; although the makeup removal effect was improved, the excessive oil damaged the water-in-oil structure, leading to a greasy feeling. Comparative Examples 3 and 10 had too little oil, resulting in poor makeup removal. Comparative Examples 4-9 used unsuitable oils, leaving obvious residue or being unable to remove makeup. All of the above results indicate that a suitable ratio and type of makeup removal composition in this application are indispensable for achieving both makeup removal power and a refreshing feel.

[0169] II. Preparation of Storage-Resistant Makeup Remover

[0170] Examples B1-B5

[0171] 1. Prepare the makeup remover composition according to Table 5.

[0172] Table 5. Components and parts by weight of the makeup remover compositions of Examples B1-B5

[0173]

[0174] 2. Weigh out a sufficient amount of deionized water using a beaker, so that the total weight of the makeup remover composition and deionized water is 100 parts.

[0175] 3. Add the oil, polyol and emulsifier to the beaker in sequence and mix. Heat the mixture in a water bath and stir for 30 minutes at 80℃ and 150-200 rpm to make the material completely dispersed and uniform. Then homogenize at 5000 rpm for 5 minutes.

[0176] Comparative Example B1

[0177] The comparative example uses essentially the same formulation and preparation method as Example B5, except that ethylhexylglycerin is not added based on Example B5.

[0178] Comparative Example B2

[0179] The comparative example uses essentially the same formulation and preparation method as Example B5, except that PEG-20 glycerol triisostearate is replaced with polyglycerol 10-laurate in Example B5.

[0180] Comparative Example B3

[0181] The comparative example uses essentially the same formulation and preparation method as Example B5, except that A-165 is not added based on Example B5.

[0182] Comparative Example B4

[0183] The comparative example uses essentially the same formulation and preparation method as Example B5, except that the weight percentage of PEG-20 glycerol triisostearate is reduced to 1% based on Example B5.

[0184] Table 6. Results of makeup removal power, makeup dissolving time, and skin feel test.

[0185]

[0186] As shown in Table 6, after adding thickeners, fragrances, and preservatives (Examples B1-B5), the products remained uniform and stable in centrifugation and hot / cold tests. Meanwhile, the makeup dissolving time and refreshing feeling score remained almost unchanged. This indicates that in practical applications, this makeup removal composition can be combined with suitable additives (such as thickeners) to achieve better performance (such as stability). The formulation has great flexibility and compatibility when used to prepare makeup removal products.

[0187] Comparative Examples B1-B4 showed a decrease in stability due to the absence of the second polyol (ethylhexylglycerin), a change in the type of emulsifier, or a reduction in the amount of emulsifier. However, the makeup removal effect and refreshing feeling were basically unaffected. This indicates that in practical applications, even when the types of auxiliary agents are limited, the ratio and types of makeup removal compositions can be appropriately adjusted within a suitable range to achieve better compatibility and stability among the various components of the makeup removal product.

[0188] The technical features of the above-described embodiments and examples can be combined in any suitable manner. For the sake of brevity, not all possible combinations of the technical features in the above-described embodiments and examples are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0189] The embodiments described above merely illustrate several implementation methods of this application and should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Furthermore, it should be understood that after reading the above teachings, those skilled in the art can make various alterations or modifications to this application, and the equivalent forms obtained also fall within the protection scope of this application. It should also be understood that technical solutions obtained by those skilled in the art based on the technical solutions provided in this application through logical analysis, reasoning, or limited experimentation are all within the protection scope of the appended claims. Therefore, the protection scope of this patent application should be determined by the appended claims, and the specification can be used to interpret the content of the claims.

Claims

1. A makeup remover composition, characterized in that, The makeup remover composition comprises oils, polyols, and emulsifiers in a weight ratio of (10-20):(0.5-10):(2-10); The composition of the grease includes one or more of a first grease and a second grease; The first oil includes one or more of ether oils, alkane oils, and ester oils; The chemical formula of the ether-based oil is R. 11 -OR 12 The chemical formula of the alkane-based oil is CH3-CH(CH3)-R. 13 The chemical formula of the ester oil is R. 14 -OC(=O)-R 15 ; Among them, R 11 R 12 R 13 R 14 and R 15 Selected independently from C 8-12 Straight-chain alkanes; The second oil is selected from polyethylene glycol-modified alkyl glycerol esters; The composition of the polyol includes one or more of a first polyol and a second polyol; The first polyol includes diol compounds; the second polyol includes alkyl glycerol ether compounds.

2. The makeup remover composition according to claim 1, characterized in that, The weight ratio of the first grease to the second grease is (0.2-4):1; The weight ratio of the first polyol to the second polyol is (20-40):

1.

3. The makeup remover composition according to claim 1 or 2, characterized in that, It has one or more of the following characteristics: (1) The ether oils include one or more of dioctyl ether, didecyl ether, and octyldecyl ether; (2) The alkane oils include one or more of isododecane, isotridecane, isotetradecane and isopentadecadecane; (3) The ester oils include one or more of the following: coconut oil-caprylate / caprylate, lauryl caprylate, lauryl caprylate, octyl octanoate, decyl decanoate, and lauryl laurate; (4) The polyethylene glycolated alkyl glycerol esters include one or more of PEG-4 octanoic acid / decanoic acid glycerol ester, PEG-6 octanoic acid / decanoic acid glycerol ester and PEG-8 octanoic acid / decanoic acid glycerol ester.

4. The makeup remover composition according to claim 1 or 2, characterized in that, The diol compounds include one or more of small molecule diols and polyethylene glycol; The small molecule diol has 2-10 carbon atoms; The polyethylene glycol has a molecular weight of 200-800; and / or, The chemical formula of the alkylglycerol ether compound is: ;R 16 Selected from C 8-12 Straight-chain alkanes or C 8-12 Branched alkanes.

5. The makeup remover composition according to claim 4, characterized in that, It has one or more of the following characteristics: (1) The small molecule polyols include one or more of ethylene glycol, dipropylene glycol, 1,2-propanediol, 1,3-propanediol, 1,3-butanediol, 1,2-pentanediol and octanoic acid alcohol; (2) The polyethylene glycol includes one or more of PEG-200, PEG-400, PEG-600 and PEG-800; (3) The alkyl glycerol ethers include one or more of ethylhexylglycerol, octyloxyglycerol, decyl glycerol ether and pentyl glycerol ether.

6. The makeup remover composition according to claim 1, characterized in that, The emulsifier includes one or more of polyglycerol emulsifiers, polyether emulsifiers, and fatty alcohol emulsifiers; Optionally, the polyglycerol emulsifier includes one or more of PEG-100 glycerol stearate, PEG-20 glycerol triisostearate, polyglycerol-3-methylglucose distearate, polyglycerol-10 stearate, polyglycerol-6 distearate, and polyglycerol-4 isostearate; Optionally, the polyether emulsifier includes one or more of cetearyl alcohol polyether-6, cetearyl alcohol polyether-25, cetearyl alcohol polyether-12, cetearyl alcohol polyether-20, stearyl alcohol polyether-2, stearyl alcohol polyether-21 and behenyl alcohol polyether-10; Optionally, the emulsifier includes one or more of cetearyl alcohol, cetyl alcohol, stearyl alcohol, behenyl alcohol, arachidyl alcohol, and myristyl alcohol.

7. The makeup remover composition according to claim 6, characterized in that, The emulsifier comprises the polyglycerol emulsifier, the polyether emulsifier, and the fatty alcohol emulsifier in a weight ratio of (2-8):1:(0.4-0.6).

8. A makeup remover, characterized in that, The makeup remover product includes the makeup remover composition and dispersion medium as described in any one of claims 1-7.

9. The makeup remover product according to claim 8, characterized in that, The makeup remover product comprises, by weight percentage: 20%-30% of the makeup remover composition, 60%-80% of the dispersion medium, and 0%-10% of the auxiliary agents; Optionally, the additives include one or more of thickeners, preservatives, and flavorings.

10. The makeup remover product according to claim 9, characterized in that, The makeup remover product comprises, by weight percentage: 20%-30% of the makeup remover composition, 67%-79% of the dispersion medium, 0.5%-1.5% of the thickener, 0.1%-1% of the preservative, and 0.05%-0.5% of the fragrance.

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