Oil-in-water cosmetic for eyelashes and eyebrows

Abstract

To provide oil-in-water cosmetics for eyelashes and eyebrows that are applied to eyelashes with excellent adhesion, are less prone to clumping even after multiple applications, distinctly enhance eyelash bundling (separation) and length immediately after application, maintain long-lasting smudge resistance, and exhibit excellent curl-holding capability.SOLUTION: Oil-in-water cosmetics for eyelashes and eyebrows contain following components (A), (B) and (C): (A) stearic acid, (B) a hydroxy amine compound represented by general formula (1) (where R1, R2, R3 each represent a C1-5 alkyl group or a C1-5 hydroxyalkyl group, and at least one of R1, R2, R3 is a hydroxyalkyl group), and (C) a fatty acid polyethylene glycol with an HLB of 11-18. The molar ratio of a component (A) to a component (B), (A) / (B), is 1.1-5.5.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an oil-in-water cosmetic composition for eyelashes and eyebrows. [Background technology]

[0002] In the field of eyelash cosmetics, studies have been conducted on cosmetics that can impart curling and volumizing effects to eyelashes, make the eyelashes look beautiful, and maintain the cosmetic effect. For example, Patent Document 1 describes that a composition for keratin fibers containing vegetable butter, an alkaline agent, a wax, and water provides excellent volume-increasing and cosmetic effects to keratin fibers. Patent Document 2 describes that a composition for keratin fibers containing a polyoxyalkylenated wax, an alkaline agent, a fatty acid, and water provides an excellent makeup effect, particularly a lengthening effect, to keratin fibers. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-87150 A [Patent Document 2] JP 2018-168100 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional eyelash cosmetics have poor adhesion to eyelashes when applied, fail to create bundles of eyelashes, and fail to provide a feeling of length. In addition, when applied in large quantities to eyelashes, clumps tend to form, and the bundles of eyelashes do not separate neatly, resulting in a lack of separation and a feeling of length. Furthermore, there is also the issue of bleeding due to sebum and sweat in daily life. [Means for solving the problem]

[0005] The present inventors have discovered that an oil-in-water cosmetic for eyelashes and eyebrows that solves the above-mentioned problems can be obtained by using stearic acid and a specific hydroxylamine compound in a specific molar ratio, and combining it with a fatty acid polyethylene glycol having a specific HLB.

[0006] The present invention comprises the following components (A), (B) and (C): (A) stearic acid, (B) General formula (1)

[0007] [ka]

[0008] (In the formula, R 1 , R 2 , R 3 represents an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms, R 1 , R 2 , R 3 At least one of is a hydroxyalkyl group. A hydroxyamine compound represented by the formula: (C) Fatty acid polyethylene glycol with HLB of 11 to 18 The present invention relates to an oil-in-water cosmetic for eyelashes and eyebrows, comprising: Effect of the Invention

[0009] The oil-in-water cosmetic composition for eyelashes and eyebrows of the present invention has excellent adhesion when applied to eyelashes, is less likely to clump even when applied in multiple layers, gives the eyelashes a sense of separateness and length immediately after application, is resistant to smudging for long periods of time, and has excellent curl retention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The content of stearic acid in component (A) used in the present invention is preferably 1 to 7% by mass, more preferably 2 to 6% by mass, and even more preferably 3 to 5% by mass, of the total composition, from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in multiple layers, a noticeable sense of bundled eyelashes (separated feeling) and length immediately after application, resistance to smudging for a long time, excellent curl retention, and smoothness upon application.

[0011] In the present invention, a fatty acid other than component (A) may be contained. Such fatty acids are preferably saturated or unsaturated fatty acids having a straight or branched chain and a carbon number of 14 to 22 other than stearic acid, and specific examples thereof include myristic acid, palmitic acid, arachidic acid, and behenic acid. The fatty acids other than component (A) can be used alone or in combination of two or more. From the viewpoint of adhesion to eyebrows and eyelashes, the content is preferably 0.01 to 3 mass% of the total composition, more preferably 0.05 to 2.5 mass%, and even more preferably 0.1 to 2 mass%.

[0012] The hydroxyamine compound of component (B) is represented by the above general formula (1), and specific examples thereof include 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol.

[0013] Component (B) may be used alone or in combination of two or more kinds, and the content is preferably 0.1 to 2.6% by mass, more preferably 0.2 to 2.3% by mass, and even more preferably 0.3 to 2% by mass, of the total composition from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in multiple layers, a noticeable feeling of bundled eyelashes (separated feeling) and length immediately after application, little bleeding for a long time, excellent curl retention, fatty acid salt formation, and long-term stability of the emulsion.

[0014] In the present invention, the molar ratio (A) / (B) of component (A) to component (B) is from 1.1 to 5.5, preferably from 1.3 to 5, and more preferably from 1.5 to 4.5, from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in multiple layers, a noticeable sense of bundled eyelashes (separated feeling) and length immediately after application, resistance to smudging for a long time, and curl retention.

[0015] Component (C) is a fatty acid polyethylene glycol having an HLB of 11-18, with an HLB of 15-18 being preferred. Here, HLB (Hydrophilic-Lipophilic Balance) indicates the molecular weight of the hydrophilic group portion in the total molecular weight of a surfactant, and for nonionic surfactants, it is calculated by Griffin's formula. The HLB value of a mixed surfactant consisting of two or more nonionic surfactants is the phase arithmetic average of the HLB values ​​of each nonionic surfactant based on the blending ratio.

[0016] Mixed HLB=Σ(HLBx×Wx) / ΣWx HLBx indicates the HLB value of the nonionic surfactant X. Wx indicates the weight (g) of the nonionic surfactant X having a value of HLBx.

[0017] From the viewpoint of suppressing bleeding for a long period of time, it is preferable that component (C) contains at least polyethylene glycol stearate.

[0018] One or more types of component (C) may be used, and the content is preferably 0.1 to 10% by mass, more preferably 0.5 to 4% by mass, and even more preferably 1 to 3% by mass, of the total composition from the viewpoints of excellent adhesion to eyelashes, no clumping when applied multiple times, a noticeable feeling of bundled eyelashes (separated feeling) and length immediately after application, long-term suppression of bleeding, and curl retention.

[0019] The oil-in-water cosmetic composition for eyelashes and eyebrows of the present invention may further contain (D) a polymer or copolymer of a monomer selected from alkyl acrylates having a glass transition temperature Tg of 0 to 40°C. The polymer or copolymer of component (D) is not limited as long as it is one that is commonly used in cosmetics, but a copolymer obtained by emulsion polymerization of a monomer mixture containing a monomer selected from alkyl acrylates as the main component and a monomer mixture containing a monomer selected from alkyl acrylate monomers and other monomers as the main component is preferred.

[0020] The glass transition temperature (Tg) of the polymer or copolymer of component (D) is from 0 to 40°C, and preferably from 10 to 30°C, from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in multiple layers, a noticeable sense of bundled eyelashes (separated feeling) and length immediately after application, resistance to smudging for a long time, curl retention, and ease of peeling of the mascara with water at about 35 to 42°C to avoid stress on the eyebrows and eyelashes during cleansing.

[0021] The polymer or copolymer of component (D) may be in the form of an emulsion containing the polymer or copolymer and water, and is preferably an alkyl acrylate copolymer emulsion. The copolymer content (solid content) in the emulsion is not limited, but is preferably 20 to 60 mass%, more preferably 25 to 55 mass%.

[0022] Examples of the polymer or copolymer of component (D) include: Yodosol GH256F (alkyl acrylate copolymer emulsion; Nouryon Japan; Tg 20°C, polymer purity 29%), Yodosol GH41F (alkyl acrylate-styrene copolymer emulsion; Nouryon Japan; Tg 5°C, polymer purity 45%), Commercially available products such as Vinizol 1086WP (acrylates copolymer ammonium emulsion, manufactured by Daido Chemical Industry Co., Ltd.; Tg 10° C., polymer purity 40%) can be used.

[0023] One or more types of component (D) may be used, and the content is preferably 4 to 25% by mass, more preferably 5 to 23% by mass, and even more preferably 6 to 21% by mass, based on the total composition, from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in multiple layers, a noticeable sense of bundled eyelashes (separated feeling) and length immediately after application, resistance to smudging for a long time, and ability to keep eyelashes curled and maintain eyebrow hair flow.

[0024] The oil-in-water cosmetic composition for eyelashes and eyebrows of the present invention may further contain an oil agent (E). Examples of oils include those used in ordinary cosmetics that are liquid at 25°C, such as linear or branched hydrocarbon oils such as liquid paraffin, liquid isoparaffin, mineral oil, polybutene, polyisobutene, hydrogenated polyisobutene, hydrogenated polydecene, squalane, squalene, and petrolatum; vegetable oils such as avocado oil, macadamia nut oil, olive oil, rapeseed oil, sesame oil, wheat germ oil, linseed oil, cottonseed oil, soybean oil, palm oil, coconut oil, castor oil, jojoba oil, sunflower oil, camellia oil, and corn oil; and animal oils such as liquid lanolin;Isopropyl myristate, octyldodecyl myristate, isopropyl isostearate, isononyl isononanoate, butyl stearate, oleyl oleate, isotridecyl isononanoate, isostearyl myristate, octyldodecyl ricinoleate, octyl hydroxystearate, diglyceryl monoisostearate, ethylhexyl palmitate, cetyl ethylhexanoate, octyl methoxycinnamate, tocopheryl acetate, propylene carbonate, diisostearyl malate, propylene glycol dicaprylate, Neopentyl glycol dicaprate, neopentyl glycol diethylhexanoate, diglyceryl diisostearate, propanediol diisostearate, glyceryl monomyristate monoisostearate, glyceryl diisostearate, glyceryl triisostearate, propanediol di(capric acid / caprylic acid), glyceryl tri(caprylic acid / capric acid), glyceryl tri-2-ethylhexanoate, triethylhexanoin, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate Tyrolpropane, pentaerythrityl tetraoctanoate, pentaerythritol tetraethylhexanoate, pentaerythritol tetraisostearate, polyglyceryl-2 isostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, polyglyceryl-2 tetraisostearate, polyglyceryl-6 octacaprylate, ditrimethylolpropane oligoester of isostearic acid / sebacic acid, dipentaerythrityl tripolyhydroxystearate, dilauroyl glutamate (phytosteryl / octyldodecyl), di(phytosteryl / behenyl / octyldodecyl) lauroyl glutamate, trehalose isostearate esters, dipentaerythrityl tetraisostearate, dipentaerythrityl pentaisostearate, ethylhexyl hydroxystearate, phytosterol fatty acid esters, cholesterol fatty acid esters, polyglycerin fatty acid esters, pentaerythritol fatty acid esters, dl-α-tocopherol, dl-α-tocopherol nicotinate and other ester oils;Examples of the silicone oil include higher alcohols such as cetanol, behenyl alcohol, isostearyl alcohol, jojoba alcohol, oleyl alcohol, stearyl alcohol, and long-chain branched aliphatic alcohols; and silicone oils such as diphenyl dimethicone, dimethyl polysiloxane, methylcyclo polysiloxane, methylphenyl polysiloxane, methylhydrogen polysiloxane, higher alcohol-modified organopolysiloxane, tris(trimethylsiloxy)methylsilane, and trimethylpentaphenyl trisiloxane.

[0025] Examples of waxes that are solid at 25° C. include rice bran wax, carnauba wax, candelilla wax, sunflower seed wax, beeswax, ceresin, paraffin wax, microcrystalline wax, polyethylene wax, silicone wax, and hydrogenated jojoba oil. A wax that is solid at 25°C is one that has a melting point of 40°C or higher and is insoluble in water.

[0026] As component (E), from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in layers, prominent separation and length immediately after application, long-lasting resistance, curl retention, emulsion stability over time, and finish after application of mascara, it is preferable to include one or more selected from vegetable oils, higher alcohols, and waxes.More preferably, it includes at least olive oil as vegetable oil, behenyl alcohol as higher alcohol, and one or more or two or more selected from waxes.

[0027] The component (E) may be used alone or in combination of two or more kinds. The content is preferably 5 to 30% by mass, more preferably 10 to 27% by mass, and even more preferably 15 to 25% by mass, of the total composition from the viewpoints of excellent adhesion to eyelashes, little clumping even when applied in multiple layers, a noticeable sense of bundled eyelashes (separated feeling) and length immediately after application, resistance to smudging for a long time, curl retention, ease of application to eyebrows and eyelashes, and stability over time.

[0028] In the present invention, the content of water is preferably 30 to 70 mass % of the total composition, more preferably 35 to 65 mass %, and even more preferably 40 to 60 mass %, from the viewpoints of smooth application and emulsion stability over time.

[0029] The oil-in-water cosmetic for eyelashes and eyebrows of the present invention may further contain ingredients used in ordinary cosmetics, such as surfactants, powders, fibers, water-soluble solvents, film-forming agents, inorganic salts, ultraviolet absorbers, ultraviolet scattering agents, moisturizers, colorants, fragrances, antioxidants, sequestering agents, etc.

[0030] The oil-in-water cosmetic composition for eyelashes and eyebrows of the present invention can be produced by uniformly mixing and stirring the respective components according to a conventional method. Specifically, it is preferable to heat and dissolve an oil phase containing components (A), (C), and (E), mix and stir a heated aqueous phase containing component (B) to produce an emulsion, cool the mixture to 40°C, and then mix and stir the remaining component (D) and other components again to produce the emulsion.

[0031] The oil-in-water cosmetic composition for eyelashes and eyebrows of the present invention can be made into mascara, mascara base, mascara top coat, eyebrow mascara, etc. Among them, cosmetics for eyelashes are preferred, and are suitable as mascara.

[0032] The oil-in-water cosmetic composition for eyelashes and eyebrows of the present invention can be applied using an applicator commonly used for mascara and the like, such as a brush made of fibers twisted with wire, a comb-shaped or coil-shaped applicator, or a resin molded brush molded into a brush shape using resin. EXAMPLES

[0033] Examples 1 to 19, Comparative Examples 1 to 4 Oil-in-water eyelash cosmetics (mascaras) with the compositions shown in Tables 1 and 2 were manufactured and evaluated for adhesion to eyelashes, lack of clumping due to repeated application, feeling of separation, lengthening effect, lack of bleeding over a long period of time, and curl retention 8 hours after application. The results are also shown in Tables 1 and 2.

[0034] (Manufacturing method) The oil phase components including components (A), (C) and (E) were mixed and heated to 90° C. to dissolve and homogenize, thereby obtaining an oil phase. Next, the aqueous phase components including component (B) are heated and dissolved at 90°C, and then the oil phase that has been dissolved in advance is added to this, and emulsified using a homomixer. Then, the mixture is cooled to room temperature while stirring, and (D) and the remaining components are added at 40°C, and the mixture is stirred again. The mixture is then filled into a specified airtight container, and the desired oil-in-water cosmetic for eyelashes (mascara) is obtained.

[0035] (Evaluation method) Twenty female panelists applied each oil-in-water cosmetic product (mascara) to their eyelashes and conducted a sensory evaluation of the adhesion to the eyelashes, lack of clumping when applied multiple times, separation, lengthening effect, lack of bleeding over a long period of time, and curl retention 8 hours after application. The results were shown according to the following criteria. The adhesion to eyelashes was evaluated based on how easily the mascara adhered to the subject's eyelashes when applied once using a brush. The reapplication was evaluated based on the amount of mascara formed on the eyelashes when the first application was spread out up to five times. The feeling of separation was evaluated based on whether or not there were clumps of mascara due to adhesion between eyelashes after application, the lengthening effect was evaluated based on whether or not the subject's eyelashes felt longer after application than before application, the lack of smudging was evaluated based on whether or not smudging occurred due to sweating or sebum around the eyes within 8 hours after application, and the curl retention was evaluated based on how well the angle at which the mascara was applied was maintained.

[0036] (Evaluation Criteria) 5; More than 17 people answered yes. 4;The number of people who answered "good" was between 12 and 16. 3;The number of people who answered "good" was 8 to 11. 2; Fewer than 7 people answered "good."

[0037] [Table 1]

[0038] [Table 2]

[0039] *1: Lunac S-98 (Kao Corporation; C18: 97%), *2: Lunac BA (Kao Corporation; C22: 90%, C20: 10%), *3: Myristic acid (POFAC 1498) (manufactured by SOUTHERN ACIDS INDUSTRIES SDN. BHD.; C14: 98%), *4: TRIS AMINO ULTRA PC (manufactured by ANGUS CHEMICAL COMPANY), *5:AMPD ULTRA PC (manufactured by ANGUS CHEMICAL COMPANY), *6: AMP-ULTRA PC 1000 (manufactured by ANGUS CHEMICAL COMPANY), *7: Triethanolamine-S (manufactured by Okura Chemitech Co., Ltd.), *8: NIKKOL MYS-10V (manufactured by Nippon Surfactant Industries Co., Ltd.; HLB11), *9: NIKKOL MYS-25V (manufactured by Nippon Surfactant Industries Co., Ltd.; HLB15), *10: NIKKOL MYS-45V (manufactured by Nippon Surfactant Industries Co., Ltd.; HLB18), *11: NIKKOL MYS-2V (manufactured by Nippon Surfactant Industries Co., Ltd.; HLB4), *12: NIKKOL HCO-80 (manufactured by Nippon Surfactant Industries Co., Ltd.; HLB15), *13: Kuropure OL-LQ-(JP) (manufactured by Croda Japan), *14: NIKKOL Olive Oil (manufactured by Nippon Surfactant Industries Co., Ltd.), *15: Behenyl alcohol 65 (manufactured by Koyu Alcohol Kogyo Co., Ltd.; C18: <20%, C22: 65-70%), *16: Kalcol 6850 (Kao Corporation; C16:C18=1:1), *17: TOWAX-1F6(K) (manufactured by Toa Kasei Co., Ltd.), *18: Golden Brand (manufactured by Miki Chemical Industry Co., Ltd.), *19: Paraffin wax 155(G) (manufactured by Nippon Seiro Co., Ltd.), *20: Yodosol GH256F (alkyl acrylate copolymer emulsion; Nouryon Japan; Tg 20°C, polymer purity 29%), *21: Yodosol GH41F (alkyl acrylate-styrene copolymer emulsion; manufactured by Nouryon Japan; Tg 5°C, polymer purity 45%), *22:DPG-RF (ADEKA), *23: HEC Daicel SE600 (manufactured by Daicel), *24:ELESTAB CPN ULTRAPURE (manufactured by BASF Beauty Care Solutions France SAS), *25: Dissolvin NA2-S (manufactured by Nouryon), *26: Phenoxyethanol-S (manufactured by Yokkaichi Chemical Co., Ltd.), *27: 95% synthetic alcohol (manufactured by Japan Synthetic Alcohol Co., Ltd.), *28:PE-BLACK 10F1 (Mikuni Color Co., Ltd.)

[0040] Formulation example 1 (eyebrow mascara) The oil-in-water cosmetic for eyebrows (eyebrow mascara) having the composition shown below was produced in the same manner as in Examples 1 to 19, and had excellent adhesion when applied to eyebrows, was less likely to clump even when applied in multiple layers, and was less likely to smudge over a long period of time.

[0041] (component) Stearic acid*1 4 (mass%) Behenic acid*2 0.2 2-Amino-2-hydroxymethyl-1,3-propanediol*4 1 Stearic acid PEG-45*10 3 Olive Fruit Oil 1 Behenyl alcohol*15 2 Cetostearyl alcohol*16 0.2 Carnauba wax*17 2 Beeswax*18 4 Microcrystalline Wax (Manufactured by Sonneborn, LLC) 2 Acrylates copolymer*20 15 Ammonium Acrylates Copolymer (Vinisole 1086WP, Daido Chemical Industry Co., Ltd.; Tg 10°C, polymer purity 40%) 15 Dipropylene glycol*22 2 Hydroxyethylcellulose*23 0.3 Sodium polyacrylate (Aronvis AH-105X, manufactured by Toagosei) 0.15 Chlorphenesin*24 0.2 Phenoxyethanol*26 0.6 EDTA-2Na*25 0.15 Ethanol*27 1 Mica (mica powder SA-310, Yamaguchi Mica Co., Ltd.) 1 Black iron oxide (TAROX synthetic iron oxide BL-100P, Titan Kogyo Co., Ltd.) 0.5 Yellow Iron Oxide (TAROX synthetic iron oxide LL-100P, manufactured by Titan Kogyo Co., Ltd.) 2 Bengala (TAROX synthetic iron oxide R-516P, manufactured by Titan Kogyo Co., Ltd.) 1 Red iron oxide coated titanium (Manufactured by CLOISONNE GOLD BASF SE) 5 Titanium dioxide (Typique CR-50 COSMETIC GRADE, manufactured by Ishihara Sangyo Kaisha) 3 Residual purified water Total 100

Claims

1. The following components (A), (B), and (C): (A) stearic acid, (B) General formula (1) 【Chemistry 1】 (In the formula, R 1 , R 2 , R 3 represents an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group having 1 to 5 carbon atoms, and R 1 , R 2 , R 3 at least one of is a hydroxyalkyl group a hydroxyamine compound represented by the formula: (C) Fatty acid polyethylene glycol with an HLB of 11 to 18 wherein the molar ratio (A) / (B) of component (A) to component (B) is 1.1 to 5.

5.

2. 2. The oil-in-water cosmetic for eyelashes and eyebrows according to claim 1, wherein component (B) is one or more selected from the group consisting of 2-amino-2-hydroxymethyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, and 2-amino-2-methyl-1,3-propanediol.

3. 3. The oil-in-water cosmetic for eyelashes and eyebrows according to claim 1, wherein component (C) comprises polyethylene glycol stearate having an HLB of 11 to 18.

4. 3. The oil-in-water cosmetic for eyelashes and eyebrows according to claim 1, further comprising (D) a polymer or copolymer of a monomer selected from alkyl acrylates having a glass transition temperature Tg of 0 to 40°C.

5. 3. The oil-in-water cosmetic for eyelashes and eyebrows according to claim 1, further comprising (E) an oily agent.

Images