Water-in-oil emulsified cosmetic

Abstract

To provide a cosmetic with suppressed color streaks.SOLUTION: A cosmetic composition according to the present invention comprises (A) a block-type alkylene oxide derivative, (B) a coloring pigment, (C) mica, (D) an oil component, and (E) water.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a water-in-oil emulsion cosmetic having excellent pigment dispersibility. [Background technology]

[0002] Conventionally, inorganic powders have been blended into cosmetics to impart functions such as protecting the skin from ultraviolet rays, correcting skin irregularities, concealing blemishes and freckles, absorbing sebum, etc. However, inorganic powders tend to be difficult to disperse in oil-based bases, and when inorganic powders are blended into emulsion cosmetics, powder aggregation can occur.

[0003] In addition, cosmetics, particularly cosmetics such as foundations, generally contain pigments as so-called coloring materials in addition to the inorganic powders described above. In such cases, the color tone is often adjusted by combining multiple pigments. In addition, there are increasing cases where light-colored foundations are desired depending on the season or the scene of use, and dark-colored foundations are desired to accommodate various skin tones.

[0004] In response to such requirements, when cosmetics are prepared by combining multiple types of dark-colored pigments, color stripes may occur due to stirring during preparation. These color stripes are an undesirable appearance when the cosmetics are distributed in transparent containers, and there is concern that they may be perceived by consumers as a quality problem, so preventing color stripes is an important issue. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2008-019239 A Summary of the Invention

[0006] In view of the above problems, the present invention aims to improve the dispersibility of pigments in cosmetics, particularly in water-in-oil emulsion cosmetics used in foundations and the like, and to suppress color streaks.

[0007] According to the present invention, the following inventions are provided. [1] (A) a block type alkylene oxide derivative, (B) color pigments, (C) Mica, (D) oil, and (E)Water A water-in-oil emulsion cosmetic comprising: [2] The component (A) is represented by the following formula (a): R 1 O-(AO) m (EO) n -R 2 (a) (In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group; AO and EO each consist of one or more blocks. m and n are the average number of moles added, and 1≦m≦70 and 1≦n≦70, the ratio of oxyethylene groups to the total of oxyalkylene groups having 3 to 4 carbon atoms and oxyethylene groups is 20 to 80 mass%; R 1 and R 2 are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom. The water-in-oil emulsion cosmetic according to [1], [3] The (A) component has the following formula (a1): R 1 O-(BO) n1 (EO) m (BO) n2 -R 2 (a1) (In the formula, BO is an oxybutylene group; EO is an oxyethylene group; Each BO and EO consists of one or more blocks. m, n1, and n2 are the average number of moles added, and 1≦m≦70 and 1≦n1+n2≦70; The ratio of oxyethylene groups to the total of oxybutylene groups and oxyethylene groups is 20 to 80 mass%; R 1 and R 2 each independently represents a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom), Or (a2): R 1 O-(EO) m1 (PO) n (EO) m2 -R 2 (a2) (In the formula, EO is an oxyethylene group; PO is an oxypropylene group; m1, m2 and n are the average number of moles added, 1≦m1+m2≦70, 1≦n≦70; the ratio of oxyethylene groups to the total of oxyethylene groups and oxypropylene groups is 20 to 80 mass%; R 1 and R 2 are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom. The water-in-oil emulsion cosmetic according to [1] or [2], [4] The water-in-oil emulsion cosmetic according to any one of [1] to [3], wherein the mica is hydrophobically treated mica. [5] (F) The water-in-oil emulsion cosmetic according to any one of [1] to [4], further comprising a dispersant having an HLB value of less than 3. [6] The water-in-oil emulsion cosmetic according to any one of [1] to [5], further comprising a thickener (G). [7] (H) The water-in-oil emulsion cosmetic according to any one of [1] to [6], further comprising a silicone surfactant having an HLB value of 3 or more. [8] The water-in-oil emulsion cosmetic according to any one of [1] to [7], wherein the content of component (A) is 0.1 to 0.5 mass% based on the total mass of the water-in-oil emulsion cosmetic. [9] The water-in-oil emulsion cosmetic according to any one of [1] to [8], which is a makeup base cosmetic or a liquid foundation.

[0008] According to the present invention, there is provided a water-in-oil emulsion cosmetic which has improved pigment dispersibility, suppresses color streaking, has excellent stability over time, and is easy to use.

[0009] [Water-in-oil emulsion cosmetics] The water-in-oil emulsion cosmetic composition according to the present invention (hereinafter, simply referred to as the cosmetic composition) has the following properties: (A) a block type alkylene oxide derivative, (B) color pigments, (C) Mica, (D) oil, and (E)Water and other components that are added as necessary. Each of these components will be described below.

[0010] (A) Block-type alkylene oxide derivative The cosmetic according to the present invention contains a block-type alkylene oxide derivative (hereinafter, for simplicity, may be referred to as component (A)). Component (A) is also used to improve the feel of cosmetics when used, and the inventors have newly discovered through their studies that the use of component (A) in a water-in-oil emulsion cosmetic containing a color pigment and mica can suppress color stripes.

[0011] The component (A) contains a block of an alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide, etc. Among these, the one represented by the formula (a) is preferable.

[0012] R 1 O-(AO) m (EO) n -R 2 (a) (In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group; AO and EO each consist of one or more blocks. m and n are the average number of moles added, and 1≦m≦70 and 1≦n≦70, the ratio of oxyethylene groups to the total of oxyalkylene groups having 3 to 4 carbon atoms and oxyethylene groups is 20 to 80 mass%; R 1 and R 2 are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom.

[0013] In the block alkylene oxide derivative represented by formula (a), AO is an oxyalkylene group having 3 to 4 carbon atoms, and specific examples thereof include an oxypropylene group, an oxybutylene group, an oxyisobutylene group, an oxytrimethylene group, and an oxytetramethylene group. Preferred examples include an oxypropylene group and an oxybutylene group.

[0014] m is the average number of moles of AO added, and is 1≦m≦70, and preferably 2≦m≦50. n is the average number of moles of EO added, and is 1≦n≦70, and preferably 5≦n≦55. When AO and EO are 1 or more, the moist feeling in use is improved, and when they are 70 or less, the sticky feeling tends to be reduced.

[0015] The ratio of the number of EO to the total number of AO and EO is preferably 20 to 80% by mass. When the ratio of EO is within this range, the stability of the dispersion state tends to be improved.

[0016] EO and AO must be added in a block form, but the order of adding EO and AO in formula (a) is not particularly specified. That is, in addition to a two-block structure in which one block of AO and one block of EO are bonded, a three-block structure in which a block of EO is bonded to both sides of a block of AO, a three-block structure in which a block of AO is bonded to both sides of a block of EO, and a four-block structure in which two AO blocks and two EO blocks are bonded alternately can be used. Of these, a three-block structure is preferable, as described below.

[0017] R 1 and R 2 R is a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom, and examples of the hydrocarbon group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, a sec-butyl group, and a tert-butyl group. A methyl group or an ethyl group is preferable. 1 and R 2 By making the carbon number of each of R 1 and R 2 equal to or less than 4, the hydrophilicity of the alkylene oxide derivative is improved and the skin irritation tends to be suppressed. 1 ,R 2 may be the same or different.

[0018] R 1 and R 2 may be the same, may be a mixture of a hydrocarbon group having 1 to 4 carbon atoms and a hydrogen atom, or may be a mixture of different hydrocarbon groups having 1 to 4 carbon atoms. 1 and R 2 The ratio of the number of hydrocarbon groups to the number of hydrogen atoms (Y) in the hydrocarbon groups (X) is 0.15 or less, preferably 0.06 or less, where Y / X is the ratio of the number of hydrocarbon groups (X) to the number of hydrogen atoms (Y). When the Y / X ratio is within this range, the sticky feeling is suppressed.

[0019] The component (A) used in the cosmetic preparation according to the present invention is preferably one represented by formula (a), and among these, one having a three-block structure as explained below is more preferred.

[0020] The first of the preferred block-type alkylene oxide derivatives having a three-block structure is represented by the formula (a1).

[0021] R 1 O-(BO) n1 (EO) m (BO) n2 -R 2 (a1) (In the formula, BO is an oxybutylene group; EO is an oxyethylene group; Each BO and EO consists of one or more blocks. m, n1, and n2 are the average number of moles added, and 1≦m≦70 and 1≦n1+n2≦70; The ratio of oxyethylene groups to the total of oxybutylene groups and oxyethylene groups is 20 to 80 mass%; R 1 and R 2 each independently represents a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom),

[0022] Another preferred block-type alkylene oxide derivative having a three-block structure is represented by formula (a2). R 1 O-(EO) m1 (PO) n (EO) m2 -R 2 (a2) (In the formula, EO is an oxyethylene group; PO is an oxypropylene group; m1, m2 and n are the average number of moles added, 1≦m1+m2≦70, 1≦n≦70; the ratio of oxyethylene groups to the total of oxyethylene groups and oxypropylene groups is 20 to 80 mass%; R 1 and R 2 are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom.

[0023] (BO) in formula (a1) n1 , (EO) m , and (BO) n2 , and (EO) in (a2) m1 , (PO) n , and (E.O.) m2 means that each of them constitutes one block.

[0024] Specific examples of the component (A) that can be used in the present invention include: POE(9) POP(2) Dimethyl Ether, POE(14) POP(7) Dimethyl ether, POE(10) POP(10) dimethyl ether, POE(6) POP(14) Dimethyl ether, POE(15) POP(5) Dimethyl ether, POE(25) POP(25) Dimethyl Ether, POE(7) POP(12) Dimethyl ether, POE(22) POP(40) Dimethyl ether, POE(35) POP(40) Dimethyl ether, POE(50) POP(40) Dimethyl ether, POE(55) POP(30) Dimethyl ether, POE(30) POP(34) Dimethyl ether, POE(25) POP(30) Dimethyl ether, POE(27) POP(14) Dimethyl ether, POE(55) POP(28) Dimethyl ether, POE(36) POP(41) Dimethyl ether, POE(7) POP(12) Dimethyl ether, POE(17) POP(4) Dimethyl ether, POE(9) POB(2) Dimethyl Ether, POE(14)POB(7) dimethyl ether, POE(10) POP(10) diethyl ether, POE(10) POP(10) dipropyl ether, POE(10) POP(10) dibutyl ether, POE(52)POB(32) dimethyl ether, POE(34)POB(14) dimethyl ether, POE(35)POB(32) dimethyl ether, POE(23)POB(32) dimethyl ether, POE(45)POB(28) dimethyl ether, POE(35) POP(30) glycol, POE(35)POB(32)glycol etc.

[0025] The above POE, POP, and POB are abbreviations for polyoxyethylene, polyoxypropylene, and polyoxybutylene, respectively.

[0026] The content of component (A) based on the total mass of the cosmetic according to the present invention is preferably 0.1 to 0.5 mass%, and more preferably 0.1 to 0.3 mass%. When the content of component (A) is 0.1 mass% or more, the color stripe suppressing effect is sufficiently exhibited, and when it is 0.5 mass% or less, stickiness and the like can be suppressed.

[0027] Component (A) can be produced by known methods, for example, by addition polymerization of EO and AO to a hydrocarbon compound having a hydroxyl group, followed by an ether reaction with an alkyl halide in the presence of an alkali catalyst.

[0028] (B) color pigments, The cosmetic composition according to the present invention contains a color pigment (hereinafter, for the sake of simplicity, may be referred to as component (B)). Component (B) can be selected from those generally used in cosmetics according to the intended use. Specifically, (b1) Organic pigments (e.g., Red No. 104, Red No. 202, Red No. 226, Yellow No. 4, Yellow No. 5, Blue No. 1, Black No. 401, etc.), (b2) Lake pigments (e.g., Yellow No. 4 Aluminum Lake, Blue No. 1 Aluminum Lake, etc.), (b3) inorganic coloring pigments (e.g., yellow iron oxide, red iron oxide, black iron oxide, chromium oxide, chromium hydroxide, carbon black, ultramarine, Prussian blue, manganese violet, etc.); (b4) Inorganic white pigments (e.g., zinc oxide, titanium oxide (pigment grade), etc.), (b5) extender pigments (e.g., talc, sericite, etc.), (b6) Other inorganic pigments (e.g., barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, silica, alumina, boron nitride, etc.), Examples include:

[0029] These pigments may be surface-treated or untreated, but are preferably surface-treated. The method of hydrophobization is not particularly limited, but the color pigment can be treated with, for example, a substance such as a higher fatty acid, fat or oil, wax, a silicone compound, a fluorine compound, a hydrocarbon, a surfactant, or a dextrin fatty acid ester. The hydrophobization improves the dispersion stability of the color pigment in the water-in-oil emulsion cosmetic.

[0030] The content of component (B) in the cosmetic preparation according to the present invention is preferably 3 to 30% by mass, and more preferably 0.1 to 0.3% by mass. By having the content of component (B) within this range, it is possible to improve the color tone and texture of the skin during use.

[0031] (C) Mica The cosmetic composition according to the present invention contains mica (hereinafter, for simplicity, it may be referred to as component (C)). The component (C) used in the present invention is not particularly limited, and may be selected from any of those generally used in cosmetics. Specifically, mica, sericite, muscovite, phlogopite, synthetic mica, synthetic iron phlogopite, red mica, biotite, lepidolite, and lepidolite are preferably used, and synthetic iron phlogopite is particularly preferred because of its effect of improving the feeling of use.

[0032] As with color pigments, mica is preferably hydrophobized. The hydrophobization method can be the same as described above. By carrying out the hydrophobization treatment, the dispersion stability in the water-in-oil emulsion cosmetic is improved.

[0033] In the present invention, mica is not included in the component (B).

[0034] The content of component (C) in the cosmetic preparation according to the present invention is preferably 1 to 10% by mass, and more preferably 2 to 5% by mass. By keeping the content of component (C) within this range, the sensation during use can be improved.

[0035] (D) Oil The oil component of the cosmetic composition according to the present invention (hereinafter, for the sake of simplicity, may be referred to as component (D)) may be either a polar oil or a non-polar oil, so long as it is not mixed with the aqueous phase and is liquid as a whole during production, and may be selected from a wide range of oil components that can be used in cosmetics. For example, liquid oils and fats, solid oils and fats, waxes, hydrocarbon oils, higher fatty acids, higher alcohols, synthetic ester oils, silicone oils, etc. may be used as desired.

[0036] Examples of liquid oils and fats include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, Chinese giri oil, Japanese tung oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, and glycerin triisopalmitate.

[0037] Examples of solid fats and oils include cacao butter, coconut oil, horse tallow, hardened coconut oil, palm oil, beef tallow, mutton tallow, hardened beef tallow, palm kernel oil, lard, beef bone fat, Japan Rice Kernel Oil, hardened oil, beef foot fat, Japan Rice, and hardened castor oil.

[0038] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ivory wax, whale wax, montan wax, bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugarcane wax, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and POE hydrogenated lanolin alcohol ether.

[0039] Examples of the hydrocarbon oil include liquid paraffin, ozokerite, squalene, pristane, paraffin, ceresin, squalene, petrolatum, and microcrystalline wax.

[0040] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, 12-hydroxystearic acid, undecylenic acid, and tall acid.

[0041] Examples of higher alcohols include cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, and cetostearyl alcohol.

[0042] Examples of synthetic ester oils include isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid esters, N-alkyl glycol monoisostearate, and neopentyl glycol dicaprate.

[0043] Examples of silicone oils include chain silicone oils such as dimethylpolysiloxane (dimethicone), methylphenylpolysiloxane, and methylhydrogenpolysiloxane; and cyclic silicone oils such as dodecamethylcyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and tetramethyltetrahydrogenpolysiloxane.

[0044] In the cosmetic according to the present invention, the content of component (D) is preferably from 5 to 70 mass %, and more preferably from 12 to 60 mass %, based on the total mass of the cosmetic.

[0045] (E)Water The cosmetic preparation according to the present invention contains an aqueous phase and an oil phase. The aqueous phase contains water (hereinafter, for simplicity, may be referred to as component (E)). As the water, any water generally used in cosmetics may be used, such as purified water, ion-exchanged water, tap water, etc.

[0046] (F) Dispersant The cosmetic composition according to the present invention contains the above-mentioned components (A) to (E) as essential components, but may contain additional components as necessary. One such additional component is a dispersant with an HLB of less than 3 (hereinafter, for simplicity, may be referred to as component (F)). Here, in the present invention, it is preferable to use one whose HLB is calculated by the Davis method. Such a dispersant can be selected from materials known as surfactants, and examples of such dispersants include silicone surfactants, nonionic surfactants, cationic surfactants, and anionic surfactants.

[0047] Of these, the dispersant is preferably a silicone surfactant, and polyglycerin / alkyl-modified silicone is particularly preferred. Examples of polyglycerin / alkyl-modified silicone that can be used include polyglyceryl-3 polydimethylsiloxyethyl dimethicone, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone, and bisbutyl dimethicone polyglyceryl-3.

[0048] Such dispersants improve the dispersion stability of the oil phase. In the cosmetic preparation according to the present invention, when component (F) is incorporated, the content of component (F) is preferably 0.1 to 10 mass%, and more preferably 0.5 to 5 mass%, based on the total mass of the cosmetic preparation.

[0049] (G) Thickener The cosmetic preparation according to the present invention may further contain a thickener (hereinafter, for simplicity, may be referred to as component (G)). Component (G) maintains the viscosity of the cosmetic preparation at an appropriate level and inhibits the settling of insoluble components such as color pigments. Such a thickener may be blended in the aqueous phase, the oil phase, or both.

[0050] Specific examples of the thickener (g1) that can be incorporated into the aqueous phase include natural polymer compounds, cellulose polymer compounds, vinyl polymer compounds, acrylamide polymer compounds, acrylic polymer compounds such as polyethyl acrylate, polyalkylene polymer compounds, etc. Among these, acrylamide polymer compounds, particularly (dimethylacrylamide / sodium acryloyldimethyltaurate) crosspolymer, acrylamide / 2-acrylamido-2-methylpropanesulfonic acid copolymer, etc. are preferably used.

[0051] Specific examples of the thickener (g2) that can be incorporated in the oil phase include dextrin fatty acid esters, sucrose fatty acid esters, solid or semi-solid hydrocarbon oils, organically modified clay minerals, fatty acids or their salts, etc. Among these, dextrin fatty acid esters are preferably used, and in particular, dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristate, dextrin (palmitate / 2-ethylhexanoate), etc. are preferred.

[0052] In the cosmetic preparation according to the present invention, the content of component (G) in the aqueous phase, when present, is preferably 0.05 to 5 mass%, and more preferably 0.1 to 1 mass%, based on the total mass of the cosmetic preparation. Also, the content of component (G) in the oil phase, when present, is preferably 0.1 to 5 mass%, and more preferably 0.5 to 3 mass%, based on the total mass of the cosmetic preparation.

[0053] (H) Silicone-based surfactants The cosmetic composition according to the present invention may further contain a silicone surfactant with an HLB value of 3 or more (hereinafter, for simplicity, may be referred to as component (H)). As this surfactant, for example, polyether-modified silicone or polyether-alkyl co-modified silicone is preferably used. Specific examples include cetyl PEG / PPG-10 / 1 dimethicone and PEG-10 dimethicone.

[0054] Commercially available products of this type include KF-6048, KF-6107, and SC0938B manufactured by Shin-Etsu Chemical Co., Ltd.

[0055] In the cosmetic according to the present invention, when component (H) is blended, the content thereof is preferably from 0.5 to 10 mass %, and more preferably from 1 to 7 mass %, based on the total mass of the cosmetic.

[0056] (I) Other ingredients The cosmetic preparation according to the present invention may contain further components in addition to the components (F) to (H). Such components may be selected from those generally used in cosmetics according to the purpose. Such components include surfactants other than the components (F) and (H), alcohols, chelating agents, antioxidants, UV absorbers, UV scattering agents, moisturizers, fragrances, various medicinal ingredients, preservatives, pH adjusters, neutralizing agents, etc.

[0057] The cosmetic of the present invention takes the form of a water-in-oil type emulsion cosmetic, which is produced from the above-mentioned components by a conventional method. Specific product forms include emulsions, skin care creams, makeup bases, hair creams, liquid foundations, cushion foundations, eyeliners, mascaras, eyeshadows, and other emulsion or cream products, but it is preferable to use these forms, since the color stripe suppressing effect is particularly pronounced when the cosmetic is used as a makeup base cosmetic or liquid type foundation.

[0058] The present invention will be described in detail with reference to the following examples, but the present invention is not limited to these examples. Contents are by weight unless otherwise specified.

[0059] [Examples 1 to 12, Comparative Examples 1 to 4] <Preparation of cosmetics> Water-in-oil cosmetic compositions of the respective Examples and Comparative Examples were prepared according to the formulations shown in Table 1. In the table, the content of each component is expressed as mass %.

[0060] The obtained cosmetic compositions were evaluated for the following items, and the results are also shown in Table 1.

[0061] Dispersibility: When preparing a water-in-oil cosmetic, the appearance of the cosmetic was visually observed after the dispersion treatment following blending of the oil phase components and after emulsification of the entire cosmetic. In addition, if no color streaks were observed on the appearance after emulsification, the cosmetic was filled into a container and then visually observed on the appearance. Based on the observation results, the cosmetic was evaluated according to the following criteria. A+: No color streaks occur during dispersion of the oil phase or immediately after emulsification. Additionally, no color streaks occur after filling the container. A: Color stripes occur when the oil phase is dispersed, but no color stripes occur immediately after emulsification. Additionally, no color streaks occur after filling the container. B: Color streaks occur when the oil phase is dispersed, but no color streaks occur immediately after emulsification. Also, color streaks occur after filling the container. C: Color streaks occur both when the oil phase is dispersed and immediately after emulsification.

[0062] Viscosity stability: The viscosity of the cosmetic was measured immediately after preparation and after storage at 30°C for 1 hour, and the viscosity stability was evaluated based on the change in viscosity according to the following criteria. A: Viscosity remains constant over time. B: Viscosity decreases by 50 to 80 percent over time. C: Viscosity decreases to 50% or less over time.

[0063] Stickiness and Fit: The prepared cosmetic compositions were applied to the skin, and the stickiness and fitting feeling were evaluated according to the following criteria. Stickiness: A:It's not sticky. B: Slightly sticky. C: Sticky. Fits: A: It fits the skin after application. B: Application is completed slowly. C: The base does not stay on the skin when applied.

[0064] [Table 1-1]

[0065] [Table 1-2]

[0066] These results show that only when (A) a block-type alkylene oxide derivative and (C) mica are used in combination, the dispersibility and viscosity stability are improved, color stripes are suppressed, and excellent usability is also achieved.

Claims

1. (A) a block type alkylene oxide derivative, (B) a color pigment, (C) mica, (D) oil, and (E) Water A water-in-oil emulsion cosmetic comprising:

2. The component (A) is represented by the following formula (a): 2 １ 9-(29) ｍ (59) ｎ -2 ２ (a) (In the formula, AO is an oxyalkylene group having 3 to 4 carbon atoms; EO is an oxyethylene group; Each of the AO and EO constitutes one or more blocks, m and n are the average number of moles added, 1≦m≦70 and 1≦n≦70, the ratio of oxyethylene groups to the total of oxyalkylene groups having 3 to 4 carbon atoms and oxyethylene groups is 20 to 80 mass %, R １ and R ２ are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom. The water-in-oil emulsion cosmetic according to claim 1 ,

3. The component (A) has the following formula (a1): R １ O-(BO) ｎ１ (EO) ｍ (BO) ｎ２ -R ２ (a1) (In the formula, BO is an oxybutylene group; EO is an oxyethylene group; Each of the BO and the EO constitutes one or more blocks, m, n1, and n2 are the average number of moles added, 1≦m≦70, and 1≦n1+n2≦70; The ratio of oxyethylene groups to the total of oxybutylene groups and oxyethylene groups is 20 to 80 mass %, R １ and R ２ are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom), Or (a2): 2 １ 9-(59) ｍ１ (0) ｎ (59) ｍ２ -2 ２ (a2) (In the formula, EO is an oxyethylene group; PO is an oxypropylene group; m1, m2 and n are the average number of moles added, 1≦m1+m2≦70, 1≦n≦70, the ratio of oxyethylene groups to the total of oxyethylene groups and oxypropylene groups is 20 to 80 mass %, R １ and R ２ are each independently a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom. The water-in-oil emulsion cosmetic according to claim 1 or 2,

4. 3. The water-in-oil emulsion cosmetic according to claim 1, wherein the mica is hydrophobically treated mica.

5. The water-in-oil emulsion cosmetic according to claim 1 or 2, further comprising (F) a dispersant having an HLB of less than 3.

6. The water-in-oil emulsion cosmetic according to claim 1 or 2, further comprising (G) a thickener.

7. 3. The water-in-oil emulsion cosmetic according to claim 1, further comprising (H) a silicone surfactant having an HLB of 3 or more.

8. 3. The water-in-oil emulsion cosmetic according to claim 1, wherein the content of component (A) is 0.1 to 0.5% by mass based on the total mass of the water-in-oil emulsion cosmetic.

9. 3. The water-in-oil emulsion cosmetic according to claim 1, which is a makeup base cosmetic or a liquid foundation.

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