JP6829899B2 - Cosmetics for keratin fibers - Google Patents

Description

The present invention relates to a cosmetic for keratin fibers, which is suitable for use by applying it to keratin fibers such as eyelashes, eyebrows, and hairline.

Eyelash cosmetics are desired to have the effects of increasing the volume of eyelashes and maintaining curl-keeping power.
In the conventional eyelash cosmetics, the effect of increasing the volume of the eyelashes has been obtained by increasing the ratio of the powder phase in the cosmetic composition with respect to the powder phase containing black iron oxide and resin particles.
However, when the proportion of the powder phase is increased, there are problems that the composition itself becomes hard, the specific gravity of the composition increases, and the curl keeping force is inferior. Further, by increasing the proportion of the powder phase in the cosmetic composition, the proportion other than the powder phase constituting the composition becomes small, and when the content ratio of the coating agent becomes small, the cosmetic is applied to the eyelashes. When applied to, the cosmetic is hard to solidify and the feeling of use is inferior.

Patent Document 1 describes a cosmetic containing bowl-shaped particles composed of an alkyl acrylate / styrene copolymer of styrene and one or more components selected from alkyl acrylate, alkyl methacrylate, acrylic acid, and methacrylic acid. The invention is described (within the scope of the patent claim), and a mascara containing 5% by mass of the bowl-shaped particles or 10% by mass of the bowl-shaped particle emulsion is described (Example).

Patent Document 2 is a cosmetic in which core-shell particles having uneven protrusions made of polyorganosiloxane are blended on the surface of organic spherical particles other than polyorganosiloxane, and the organic spherical particles are acrylic, polystyrene, nylon, and polyurethane. And / or a mixture of one or more core-shell particles selected from copolymer particles and composite particles of these organic resins, and the acrylic is polymethylmethacrylate or crosslinked polymethylmethacrylate. The invention of cosmetics is described.
Further, applications such as eye shadow, eyeliner, mascara, eyebrow, and hair dye are described (paragraph number 0014).

Patent Document 3 describes a continuous phase of an aqueous medium containing 3 to 8% by mass of hydrophobized porous silica and 5 to 15% by mass of a film-forming agent which is a resin emulsion of an acrylic acid ester copolymer. The invention of a cosmetic for silica is described.

JP 2015-134740 JP-A-2009-280570 Japanese Patent No. 497071

An object of the present invention is to provide a cosmetic for keratin fibers which can be applied uniformly and has excellent usability such as less stickiness after application.

The present invention is a cosmetic for keratin fibers comprising a powder phase containing a polyurethane powder (A), an aqueous phase containing a film-forming emulsion (B), and an oil phase.
The component (A) is a spherical or hemispherical composite particle having an inner core portion and a coating portion covering the core portion and having recesses on the surface of the coating portion.
The core is composed of a first polymer component derived from a vinyl group-containing monomer containing a (meth) acrylate monomer.
The coating portion is composed of a second polymer component derived from a urethane component containing an isocyanate prepolymer.
The mass ratio (M2 / M1) of the mass (M1) of the first polymer component to the mass (M2) of the second polymer is 70/30 to 5/95.
Provided is a cosmetic for keratin fibers, wherein the mass ratio of the component (A) to the mass ratio of the component (B) [(B) / (A)] (mass ratio of solid content) is 2 to 10.

The cosmetic of the present invention can be applied evenly to the hairline of eyelashes, eyebrows, and hair, and is excellent in usability such as less stickiness after application and long-lasting makeup after application. Further, when the cosmetic of the present invention is used by adhering it to the eyelashes, the effect of increasing the volume of the eyelashes and the effect of keeping the curl can be obtained.

The cosmetic for keratin fibers of the present invention (hereinafter referred to as cosmetic) is composed of a powder phase containing a polyurethane powder (A), an aqueous phase containing a film-forming emulsion (B), and an oil phase.

The polyurethane powder of the component (A) used in the cosmetic of the present invention has an inner core portion and a coating portion covering the core portion described in JP-A-2016-199532, and the coating portion. It is a spherical or hemispherical composite particle having a recess on the surface of the above, and the core portion is composed of a first polymer component derived from a vinyl group-containing monomer containing a (meth) acrylate monomer. The coating portion is composed of a second polymer component derived from a urethane component containing an isocyanate prepolymer, and is a mass ratio (M2 /) of the mass (M1) of the first polymer component to the mass (M2) of the second polymer. Those having M1) of 70/30 to 5/95 can be used.

Further, among the composite powders of the component (A) described above,
The average particle size (measurement method: the particle size distribution was obtained from the laser diffraction type particle size distribution measuring device "SALD-2100" [manufactured by Shimadzu Corporation], and the integrated volume 50% particle size was taken as the average particle size) is preferably 3. ~ 20 μm, more preferably 5-15 μm,
The specific gravity is preferably more than 1 to 1.5, more preferably 1.1 to 1.3, and
An oil absorption amount (measurement method: the method described in paragraph No. 0039 of JP-A-2017-48323) is preferably 50 to 120 ml / 100 g, more preferably 60 to 100 ml / 100 g.
Further, the bulk specific gravity is preferably 0.1 to 0.5 g / ml, more preferably 0.2 to 0.4 g / ml.
The refractive index (measurement method: measured by Appe refractometer "Type 1T" [manufactured by Atago Co., Ltd.]) is preferably 1.35 to 1.60, more preferably 1.45 to 1.53. Can be done.
In order to satisfy the above range, for example, the average particle size needs to be classified by the method described in Production Example 1 of JP-A-2016-199532.

As such a composite powder of the component (A), a product name sold by Toiro Pigment Co., Ltd., which corresponds to the second composite particles shown in FIGS. 2 and 4 of JP-A-2016-199532. "UP-611" or the like can be used.

The film-forming emulsion of the component (B) used in the cosmetic of the present invention is a polymer emulsion obtained by dispersing the polymer component in an aqueous solvent, and the polymer component is preferably an acrylic polymer or a polyurethane polymer.
Acrylic polymers include (meth) acrylate copolymers, poly (meth) acrylates, (styrene / alkyl (meth) acrylate) copolymers, (acrylics / alkyl acrylate) copolymers, and salts thereof.
Examples of polyurethane-based polymers include polyurethane and polyurethane / polyacrylic hybrid polymers.
These may be contained alone or in combination as appropriate.
Examples of the film-forming emulsion of the component (B) include product names "Yodosol GH800F" and "Yodosol GH-34F" manufactured by AkzoNobel Co., Ltd., "Ditosol 5000SJ" and "Ditosol 4000SJT" manufactured by Daito Kasei Kogyo Co., Ltd. "Dytosol 5000AD", product name "Baikyusan C1010" manufactured by Bayer Material Science, etc. can be used.

The aqueous solvent constituting the film-forming emulsion of the component (B) includes water, monohydric or divalent alcohols such as dipropylene glycol, ethanol, phenoxyethanol, phenylpropanol, lauryl alcohol, and methylpropanediol, as well as capri. It may contain a polyhydric alcohol such as lyl glycol.
Further, the film-forming emulsion of the component (B) may contain a chelating agent such as EDTA; a preservative such as sodium dehydroacetate, paraben, or methylparaben, in addition to the polymer component and the aqueous solvent.

In the cosmetic of the present invention, the total content (mass of solid content) of the component (A) and the component (B) in the cosmetic is preferably 7 to 30% by mass, more preferably 8 to 27% by mass. More preferably, it is 10 to 24% by mass.
Further, in the cosmetic of the present invention, the total content (mass of solid content) of the component (A) and the component (B) in the cosmetic is preferably from the viewpoint of further enhancing the volume increasing effect and the curl keeping effect. It is 10 to 30% by mass, more preferably 13 to 25% by mass, and even more preferably 15 to 24% by mass.

The cosmetic of the present invention has a mass ratio [(B) / (A)] (mass ratio of solid content) of the component (A) to the component (B) of 2 to 10, preferably 2.0 to 8. More preferably, it is 2.2 to 7.
Further, the cosmetic of the present invention has a mass ratio of preferably 3 to 5, more preferably 3.2 to 5.0, still more preferably 3.5 to, in terms of further enhancing the volume increasing effect and the curl keeping effect. It is 4.5.

In addition, the cosmetic of the present invention further enhances the volume-up effect and curl-keeping effect.
Preferably, the total content (mass of solid content) of the component (A) and the component (B) is 10 to 30% by mass, and the mass ratio of the component (A) to the component (B) [(B) / (A). )] (Mass ratio of solid content) is 3-5,
More preferably, the total content (mass of solid content) is 13 to 25% by mass and the mass ratio [(B) / (A)] (mass ratio of solid content) is 3.5 to 5.0. You can use things.

The cosmetic of the present invention can further contain (C) a porous powder.
The porous powder may be spherical and may be approximately spherical (substantially spherical), and may be measured with an average particle size (measurement method: particle size distribution measuring machine "SALD-2100"). , 50% median diameter is taken as the average particle size) is preferably 3 to 10 μm, more preferably 3 to 7 μm, and the amount of oil absorption (measurement method: the method described in paragraph No. 0039 of JP-A-2017-48323). However, preferably 200 to 400 mL / 100 g, more preferably 230 to 370 mL / 100 g can be used.
As with the component (A), the average particle size of the component (C) is, for example, after being produced by the method described in Example 1 of JP-A-2018-199652 in order to satisfy the above range. Classification processing is required.

Further, among the components (C), the component (C1) is composed of a core composed of a core-forming crosslinked resin having a (meth) acrylate monomer unit and a coating-forming crosslinked resin containing at least one of polyurethane and polyurea. It has a porous structure including a coating portion formed around the core portion, and is a mass of the mass of the core portion-forming crosslinked resin (M1) and the mass of the coating portion-forming crosslinked resin (M2). The ratio (M2 / M1) is preferably in the range of 80/20 to 5/95.
The coating portion of the component (C1) includes one made of polyurethane, but does not contain the polyurethane powder of the component (A) of the present invention.

As such a component (C1), the product name "UP-812" sold by Toiro Pigment Co., Ltd., which corresponds to the porous resin particles of FIG. 1 of JP-A-2018-199652, is used. be able to.

In addition to the component (C1), the product name "Sunsphere H-52" (C2) is a porous silica having an average particle diameter of 5 μm and an oil absorption of 300 mL / 100 g (both are catalog values). AGC SI-Tech Co., Ltd.) can also be used.

When the cosmetic of the present invention contains the component (C), the content (mass of solid content) of the component (C) in the cosmetic is adjusted by the content of the component (A). The total content (mass of solid content) of the component (A) and the component (C) in the cosmetic is preferably 1 to 15% by mass, more preferably 2 to 12% by mass, and further preferably 3 to 10% by mass. %.
Further, the cosmetic of the present invention has a total content of preferably 3 to 15% by mass, more preferably 4 to 10% by mass, still more preferably 5 to 8% by mass, in terms of further enhancing the volume increasing effect and the curl keeping effect. %.

When the cosmetic of the present invention contains the component (C), the mass ratio of the component (A) to the component (C) [(A) / (C)] (mass ratio of solid content) is preferably 0.3. It is ~ 6, more preferably 0.8 to 3, and even more preferably 1 to 1.5.

When the cosmetic of the present invention contains the component (C), the content ratio of the component (B) to the total content of the component (A) and the component (C) in the cosmetic [(B) / [(A) + (C)]] (mass ratio of solid content) is preferably 1 to 5, more preferably 1.2 to 4, and even more preferably 1.5 to 3.
Further, the cosmetic of the present invention has a content ratio of preferably 1 to 4, more preferably 1.5 to 3, still more preferably 1.7 to 2, in terms of further enhancing the volume increasing effect and the curl keeping effect. It is .5.

When the cosmetic of the present invention contains the component (C) as the powder phase, in addition to the components (A) and (C), among any cosmetic components, black iron oxide, conjo, ultramarine, and red iron oxide are used. , Inorganic pigments such as yellow iron oxide, titanium oxide, chromium oxide, carbon black; bismuth oxychloride, mica titanium, iron oxide coated mica, iron mica titanium oxide, organic pigmented mica titanium, aluminum powder, pearl pigment, etc. Powders; organic tar pigments; organic pigment lake pigments, extender pigments such as talc, kaolin, mica, and sericite, etc. may be contained.
As a component for imparting the effect of making the eyebrows look longer, synthetic fibers such as nylon and polyester, artificial fibers such as rayon, natural fibers such as cellulose, and semi-synthetic fibers such as acetate human silk may be contained. These fibers may be those treated with an oil agent, a silicone oil, a fluorine compound, a surfactant or the like.

In addition to the film-forming emulsion of the component (B), the cosmetic of the present invention has an aqueous phase of alcohols such as 1,3-butylene glycol and 2-phenoxyethanol; and ethylhexyl glycerin among any cosmetic components. Polyhydric alcohol; may contain a moisturizing component such as hydroxyethyl cellulose.

The cosmetic of the present invention has waxes such as honeydew and carnauba wax as oil phases; silicone oils such as diphenylsiloxyphenyltrimethicone and phenyltosimeticone; diglyceryl triisostearate, triethylhexanoin, ethylhexyl hydroxystearate, and hexyl isostearate. Ester oils such as decyl and inulin stearate; higher fatty acids such as stearic acid and isostearic acid; higher alcohols such as behenyl alcohol and octyldodecanol; hydrocarbon oils such as hydrogenated polyisobutene; sucrose fatty acids such as sucrose dilaurate Esters; surfactants such as polyethylene glycol stearate (40EO), polyethylene glycol stearate (45EO); antioxidants such as tocopherol and methylparaben may be contained.

In addition, the cosmetic of the present invention can contain various components to be blended in the cosmetics listed below.
As oils, hydrocarbons, squalane, liquid paraffin, petrolatum, solid paraffin, selecin, alkyd, acrylic, sulfonamide resin;
Mineral oil, olive oil, almond oil, cacao butter, macadamia nut oil, avocado oil, hardened palm oil, sunflower oil, sunflower oil, evening primrose oil, synthetic triglyceride, wax, sunflower seed wax, candelila wax, lanolin, lanolin acetate, synthetic ester , Linear / cyclic silicone oil, dimethylpolysiloxane, glycerin monostearate, decamethylcyclopentanesiloxane, polyoxyethylene-modified dimethylpolysiloxane, octamethylcyclotetrasiloxane, polyphenylmethylsiloxane, rosinpentaerythritot ester, di Neopentyl glycol isooctanoate, neopentyl glycol diethylhexaneate, glycerin triisooctanoate, isopropyl myristate, propylene glycol monolaurate, glyceryl tri (caprylic acid / capric acid), triethylhexanoin, phenyltrimethicone, hydrogenated polyisobutene, micro Crystalin wax, etc .;
As moisturizing ingredients, glycerin, propylene glycol, sorbitol, polyethylene glycol, dipropylene glycol, diglycerin, mannitol, POE methyl glycoside, biopolymer, sucrose, cetyl ethylhexanate, diisostearyl malate, dipentaerythrityl tripolyhydroxystearate, etc. ;
Nitrocellulose, Cellulose Gum, Ceteth-20, PEG-40 Hydrogenated Castor Oil, Silicic Acid (Al / Mg);
Preservatives, emulsifiers, stabilizers, plasticizers;
Anionic surfactants, cationic surfactants, nonionic surfactants, amphoteric surfactants, protein-based surfactants;
Medicinal ingredients, vitamin C dipalmitate, vitamins, amino acids, whitening agents, bactericides;
Constituent pigments such as kaolin, mica, silica, sericite, alumina, glass flakes, calcium carbonate, magnesium carbonate, silicic anhydride, barium carbonate, etc.
Acidity regulator, potassium hydroxide, sodium hydroxide, triethanolamine, magnesium stearate, zinc stearate, metal ion encapsulant, citric acid, sodium citrate, lactate, sodium lactate, UV absorber, antioxidant, Examples include fragrances, preservatives, chelating agents, antioxidants, dispersants, buffers, antisettling ingredients, browning inhibitors, usability modifiers and the like.

In the cosmetic of the present invention, after the oil phase is dissolved to obtain a solution, a powder phase containing the component (A) and, if necessary, the component (C) is added to the solution and kneaded and kneaded. The first step of getting things,
The second step, in which the heated aqueous phase (I) is added to the kneaded product, mixed, and then cooled to room temperature.
The third step, in which the aqueous phase (II) containing the component (B) is further added to the cooled product in the previous step and kneaded to obtain a cosmetic composition.
The fourth step, in which the cosmetic composition is heated, defoamed while stirring, and then filled in a container.
It can be obtained by a manufacturing method having.

Although the cosmetic of the present invention depends on the type of cosmetic, in the above-mentioned production method, the content (solid content) of the powder phase composed of the component (A) and, if necessary, the component (C) and other components. The mass) is preferably 5 to 30% by mass, more preferably 10 to 20% by mass. The balance is the total content of the aqueous phase and the oil phase containing the component (B).
The components other than the components (A) and (C) contained in the powder phase of the present invention include coloring pigments such as inorganic pigments and organic pigments, extender pigments, and bright powders.
Further, the cosmetic for keratin fibers used by adhering to the eyelashes has a powder phase content of preferably 10 to 20% by mass, more preferably 12 to 18% by mass, and has an effect of increasing the volume of the eyelashes and curling. The keep effect is further enhanced.

(Raw materials used)
(A) Polyurethane powder: Product name "UP-611" (composite particles composed of a (meth) acrylate derivative whose core is coated with polyurethane), Toshiki Pigment Co., Ltd. Comparison (A) Polyurethane powder: Product Name "D-400" ((HDI / Trimethylol hexyl lactone) cross polymer), Toiro Pigment Co., Ltd. (B1) Film-forming emulsion containing acrylic polymer (B1-1) Product name "Yodosol GH-800F" (45% by mass pure content), manufactured by Axonobel Co., Ltd. (B1-2) product name "Dytosol 5000SJ" (50% by mass% pure content), manufactured by Daito Kasei Kogyo Co., Ltd. (B1-3) product name "Dytosol 4000SJT" (40% by mass pure content), manufactured by Daito Kasei Kogyo Co., Ltd. (B1-4) product name "Yodosol GH-34F" (42% by mass% pure content), manufactured by Akzo Nobel Co., Ltd. (B1-5) product name "Dytosol 5000AD" (50% by mass pure), Daito Kasei Kogyo Co., Ltd. (B2) film-forming emulsion containing polyurethane polymer, product name "Baikyusan C1010" (40% by mass), manufactured by Bayer Material Science Co., Ltd.

(C1) Porous powder 1: Product name "UP-812" (a porous powder having a two-layer structure consisting of a core part having a (meth) acrylate monomer unit and a coating part made of polyurethane), Toiro Pigment Co., Ltd. Company (C2) Porous Powder 2: Product Name "Sunsphere H-52" (Spherical Porous Silica), manufactured by AGC Si-Tech Co., Ltd.

<Examples 1 to 13, Comparative Examples 1 to 4>
Using the cosmetic for keratin fibers of the present invention, the following evaluations were carried out and shown in Tables 1 and 2.

<Evaluation method 1>
The cosmetic for keratin fiber of Comparative Example 1 was applied to the eyelashes of 10 female panelists who were evaluated for cosmetics using a mascara coating tool, and the coated surface of the cosmetic for keratin fiber was visually observed.
Next, after completely removing the keratin fiber cosmetics of Comparative Example 1 with a makeup remover facial cleanser or the like, the keratin fiber cosmetics of Examples and Comparative Examples 2 to 6 were again applied in the same manner as in Comparative Example 1. It was applied to the eyebrows of 10 female panelists who evaluated cosmetics, and the coated surface of the cosmetic for keratin fiber was visually observed.
The following evaluations were made according to the following criteria, with the volume-up evaluation of the keratin fiber cosmetics of Comparative Example 1 as the standard 1 and the curl keep evaluation as the standard 2.

-Volume-up evaluation The coated surfaces of the cosmetics for keratin fibers of Examples and Comparative Examples 2 to 4 were visually observed.
Of the 10 panelists, 8 to 10 evaluated that "the volume of eyelashes after application was clearly improved compared to Criterion 1 (cosmetics for keratin fibers of Comparative Example 1)". Those with 4 to 7 people were evaluated as 〇, those with 1 to 3 people were evaluated as Δ, and those with 0 people were evaluated as ×.

-Curl keep evaluation The coated surfaces of the cosmetics for keratin fibers of Examples and Comparative Examples 2 to 4 were visually observed.
Immediately before applying each keratin fiber cosmetic, the eyelashes of the 10 panelists were curled with an eyelash curler.
Of the 10 panelists, 8 to 10 evaluated that "the curl of the eyelashes after application was maintained more than that of Criterion 2 (the cosmetic for keratin fiber of Comparative Example 1)". Those with 4 to 7 people were evaluated as 〇, those with 1 to 3 people were evaluated as Δ, and those with 0 people were evaluated as ×.

<Evaluation method 2>
・ Usability evaluation Regarding the usability when applying the keratin fiber cosmetics of Examples and Comparative Examples to the eyelashes of 10 female panelists evaluated by cosmetics using a mascara application tool, "Apply evenly and evenly. Those who evaluated that "there is less stickiness after application" are ◎ for 8 to 10 people, 〇 for 4 to 7 people, △ for 1 to 3 people, and × for 0 people. evaluated.

・ Makeup Persistence Evaluation Apply the keratin fiber cosmetics of the examples and comparative examples to the eyelashes of 10 female panelists evaluated for cosmetics, and have them live a normal life. After that, the area around the eyes of the 10 panelists 4 hours after application was visually observed, and it was stated that "no changes were observed around the eyes, such as some missing parts of the keratin fiber cosmetics adhering." Those evaluated by 8 to 10 people were evaluated as ⊚, those of 4 to 7 people were evaluated as 〇, those of 1 to 3 people were evaluated as Δ, and those of 0 people were evaluated as ×.

As is clear from Tables 1 and 2, Examples 1 to 13 containing the component (A) and the component (B) and having a mass ratio (B) / (A) = 2 to 10 in the cosmetics are as follows. A) Compared with Comparative Examples 1 to 4 containing polyurethane powder other than the component, the feeling of use and the long-lasting makeup after application were good, and the volume-up effect and curl-keeping effect were also obtained.
Further, in Examples 2 to 6 containing the component (C), a volume increasing effect and a curl keeping effect were further improved.
Examples 1 to 11 having a mass ratio (B) / (A) = 3.5 to 5 in the cosmetic were adhered to the eyelashes as compared with Examples 12 and 13 having a mass ratio of 2.8. The feeling of use was better, and the effect of increasing the volume of the eyelashes and the effect of keeping the curl were further improved. When the cosmetics of Examples 1 to 13 were attached to the eyebrows and used, it was confirmed that the cosmetics of Examples 12 and 13 also had the same effect as the cosmetics of Examples 1 to 11. ..

Prescription example 1 (eyebrow mascara)
・ Ingredient name Content (mass%)
・ Propane diol 8.00
・ Setes-20 0.50
Neopentyl glycol diethylcaproate 2.00
-PEG-40 hydrogenated castor oil 0.20
・ Octyldodecanol 3.00
・ Phenoxyethanol 0.40
・ Ethylhexyl glycerin 0.30
・ Water 30.15
・ Hydroxyethyl cellulose 10.00
・ DPG 3.00
・ Silicic acid (Al / Mg) 0.15
・ Cellulose gum 0.30
(B1-4) film-forming emulsion 10.0
(B1-5) film-forming emulsion 5.00
(Hereinafter, powder phase)
・ Iron oxide (yellow iron oxide) 7.50
・ Talc 4.20
・ Iron oxide (Bengala) 2.00
・ Iron oxide (black iron oxide) 2.60
・ Mica 4.80
・ Titanium oxide 0.90
(A) Polyurethane powder 3.00
(C1) Porous powder 12.00
(Total 100.00)

The cosmetics of the present invention include volume mascara, long mascara, curl mascara, color mascara, top coat mascara, base coat mascara applied to eyebrows; make-up cosmetics such as eyebrow mascara applied to eyebrows, and hair. It can be used for hair mascara that is applied and used at the hairline of.

Claims (5)

A cosmetic for keratin fibers comprising a powder phase containing a polyurethane powder (A), an aqueous phase containing a film-forming emulsion (B), and an oil phase.
The component (A) is a spherical or hemispherical composite particle having an inner core portion and a coating portion covering the core portion and having recesses on the surface of the coating portion.
The core is composed of a first polymer component derived from a vinyl group-containing monomer containing a (meth) acrylate monomer.
The coating portion is composed of a second polymer component derived from a urethane component containing an isocyanate prepolymer.
The mass ratio (M2 / M1) of the mass (M1) of the first polymer component to the mass (M2) of the second polymer is 70/30 to 5/95.
A cosmetic for keratin fibers, wherein the mass ratio of the component (A) to the mass ratio of the component (B) [(B) / (A)] (mass ratio of solid content) is 3 to 10. The mass ratio of the component (A) to the mass ratio of the component (B) [(B) / (A)] (mass ratio of solid content) is 3.5 to 7 .
The cosmetic for keratin fibers according to claim 1 , which is applied to the eyelashes and used . Further, it contains the porous powder of the component (C),
The cosmetic for keratin fibers according to claim 1 or 2, wherein the component (C) has a spherical shape or a substantially spherical shape having an average particle size of 3 to 10 μm and an oil absorption amount of 200 to 400 mL / 100 g. (C) Porous powder
A core portion made of a core-forming crosslinked resin having a (meth) acrylate monomer unit and a coating portion formed around the core portion formed of a coating-forming crosslinked resin containing at least one of polyurethane and polyurea were provided. It has a porous structure and has a porous structure.
The claim that the mass ratio (M2 / M1) of the mass (M1) of the core-forming crosslinked resin and the mass (M2) of the covering-forming crosslinked resin is in the range of 80/20 to 5/95. 3. The cosmetic for keratin fibers according to 3. The cosmetic for keratin fibers according to any one of claims 1 to 4, wherein the component (B) is an acrylic polymer emulsion or a polyurethane polymer emulsion.