JP2020063299A - Liquid cosmetic applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid cosmetic composition which does not blur on the skin even when applied and can be drawn deeply with low viscosity with less sagging (dropping). Further, even when an elongated brush tip is used, a liquid cosmetic composition capable of drawing deeply without uneven color of drawn lines due to a vertical difference in hue is provided. Provide cosmetic compositions. SOLUTION: An aqueous emulsion of an acrylic acid-based polymer having a glass transition point of 20 ° C. or less obtained by polymerizing a monomer selected from an acrylic acid monomer, a methacrylic acid monomer, an acrylic acid ester monomer, and a methacrylic acid ester monomer, and crystals. A liquid cosmetic composition comprising at least cellulose, an inorganic pigment, and water. [Selection diagram] Fig. 1

Description

  The present invention relates to a liquid cosmetic composition suitable for eyeliner, eyeshadow, eyebrow, etc. suitable for point makeup such as around the eyes, and more specifically, it does not blur on the skin even when applied, and drops off (bottoms). The present invention relates to a liquid cosmetic composition which has a low viscosity with less bleeding, can be drawn deeply, and has a good makeup retention.

  Conventionally, non-aqueous type and emulsifying type cosmetics have been known as point-makeup cosmetics for the area around the eyes, etc., but in recent years, water-based liquid cosmetics have been spread from the viewpoint of spreadability during application and long-lasting makeup. The number of ingredient compositions is increasing.

The water-based liquid cosmetic composition includes, for example, [1] an aqueous thickening / gelling agent and a pearl luster powder, which is an aqueous point makeup cosmetic (for example, a patent Reference 1), [2] A liquid cosmetic comprising at least an inorganic pigment, a dispersant, a film-forming agent, and water, wherein the dispersant is acrylic acid, methacrylic acid or their (C _{1 to} C ₄ and C ₈ ) is a homopolymer or copolymer having one or more compounds selected from the group consisting of alkyl esters as raw material monomers, and the film-forming agent is acrylic acid, methacrylic acid, or their (C It is ₁ -C ₄ and C ₈₎ alkyl ester, or emulsion of homopolymer or copolymer of one or more compounds selected from among styrene as a raw material monomer A liquid cosmetic (for example, refer to Patent Document 2), [3] a cosmetic composition containing a pigment composition containing an inorganic pigment or an inorganic filler and a phosphoric acid ester having a specific structure (for example, Patent Document 3). 15) to 35% by mass of an acrylic acid-based polymer obtained by polymerizing one or more monomers of the group consisting of acrylic acid, methacrylic acid, acrylic acid ester, and methacrylic acid ester, and a solid oil content of 5). To 30% by mass, fluid oil content 2 to 20% by mass, 12-hydroxystearic acid 0.2 to 5% by mass, solid fatty acid other than 12-hydroxystearic acid 0.5 to 4% by mass, and surfactant. 1 to 10% by mass, an oil-in-water emulsion cosmetic containing water (see, for example, Patent Document 4), [5] 5 to 15% by mass of an alkylene oxide derivative represented by the specific formula, and a specific formula Oil-in-water emulsion cosmetic containing 0.5 to 3% by mass of a polyoxyethylene addition compound, 0.1 to 1% by mass of sorbitan sesquiisostearate, 5 to 30% by mass of wax, and water (for example, , Patent Document 5), [6] Eyelash cosmetic containing an aqueous medium as a continuous phase, characterized by containing a hydrophobic porous powder (silica) and a film-forming agent (see, for example, Patent Document 6). ) Is known.

  However, the water-based liquid cosmetic compositions shown in the above Patent Documents 1 to 6 are used for an applicator having an application part using brush tips made of an ultrafine fiber bundle suitable for point makeup such as around the eyes. In this case, since the whole brush is thin, the amount of liquid retained is extremely small, and there is a problem that the drawn line may be blurred and it may become messy.In addition, if the viscosity is low to increase the amount retained, the sagging may drop. There are issues such as (dropping). Furthermore, with the conventional average particle size of the pigment, there is a problem that the pigment with high specific gravity settles down, the vertical difference in hue occurs in a long and narrow brush, and color unevenness occurs in the drawn line. is there.

JP-A-2005-97148 (claims, examples, etc.) International publication WO2007 / 083753 (Claims, Examples, etc.) Japanese Patent Publication No. 2014-508770 (claims, examples, etc.) JP, 2010-138110, A (claim, examples, etc.) JP, 2010-280632, A (claim, examples, etc.) Japanese Patent Laid-Open No. 2006-111536 (claims, examples, etc.)

  The present invention has been made in view of the problems and the current situation of the above-mentioned conventional techniques, and is intended to solve the problems, and an applicator having an applicator using a brush tip made of a fine fiber bundle suitable for point makeup such as around the eyes. It is intended to provide a liquid cosmetic composition which, even when used for, does not blister on the skin even when applied, has a low viscosity with less dripping (bleeding), can be drawn thickly, and has good makeup retention. And

  In view of the above-mentioned conventional problems, the present inventors have conducted earnest research, and as a result, they are obtained by polymerizing monomers selected from acrylic acid monomers, methacrylic acid monomers, acrylic acid ester monomers, and methacrylic acid ester monomers. It has been found that a liquid cosmetic composition for the above purpose can be obtained by containing an aqueous emulsion of an acrylic acid-based polymer having specific physical properties, crystalline cellulose, an inorganic pigment containing at least carbon black, and water. It was completed.

That is, the present invention resides in the following (1) to (6).
(1) Aqueous emulsion of acrylic acid-based polymer having a glass transition point of 20 ° C. or lower obtained by polymerizing monomers selected from acrylic acid monomer, methacrylic acid monomer, acrylic acid ester monomer, and methacrylic acid ester monomer, and crystalline cellulose A liquid cosmetic composition comprising at least: an inorganic pigment and water.
(2) It is characterized by containing 2 to 30% by mass of the acrylic acid-based polymer aqueous emulsion (as solid content), 0.1 to 3.0% by mass of the crystalline cellulose, and 1 to 30% by mass of the inorganic pigment. The liquid cosmetic composition according to (1) above.
(3) The liquid cosmetic composition according to the above (1) or (2), which contains iron oxide particles as the inorganic pigment.
(4) The viscosity according to an ELD viscometer at a temperature of 25 ° C. and a shear rate of 3.83 S ⁻¹ is 20 to 500 mPa · s, which is characterized in that the above (1) to (3). Liquid cosmetic composition.
(5) At least an application section and a coating solution storage section are provided, the application section is composed of a brush, and the fibers of the brush include those having a cross section other than a circular shape, and the coating solution storage section has the above-mentioned (1) to ( A liquid cosmetic applicator characterized by storing the liquid cosmetic composition according to any one of 4).
(6) The liquid cosmetic applicator according to (5), wherein all the fibers of the brush have a cross section other than a circular shape.

  ADVANTAGE OF THE INVENTION According to this invention, the liquid cosmetic composition which does not blur on the skin even if apply | coated and has a low viscosity with little dripping (sloping) can be drawn deeply. Further, even when a long and narrow brush is used, there is provided a liquid cosmetic composition in which there is no color unevenness of a drawn line due to a difference in hue, and which can be drawn deeply and has good makeup retention.

1 is a longitudinal sectional view showing an example of an embodiment of a liquid cosmetic applicator of the present invention, showing a state before use. 1 is a vertical cross-sectional view showing an example of an embodiment of a liquid cosmetic applicator of the present invention, showing a use start state. It is an expanded side view which shows an example of the brush used in FIG. It is a side view which shows an example of the brush used in FIG. It is a side view which shows the other example of the brush used in FIG. It is a side view which shows the modification of the brush shown in FIG. It is a perspective view which shows the modification which formed the recessed part in the brush shown in FIG. It is a perspective view which shows the modification which formed the recessed part in the brush shown in FIG. It is a partial longitudinal cross-sectional view showing another example of the embodiment of the liquid cosmetic applicator of the present invention. It is a partial longitudinal cross-sectional view showing another example of the embodiment of the liquid cosmetic applicator of the present invention.

Hereinafter, embodiments of the present invention will be described in detail.
The liquid cosmetic composition of the present invention is an acrylic acid-based polymer having a glass transition point of 20 ° C. or lower, which is obtained by polymerizing monomers selected from acrylic acid monomers, methacrylic acid monomers, acrylic acid ester monomers, and methacrylic acid ester monomers. Of water-based emulsion, crystalline cellulose, an inorganic pigment, and water.

The aqueous emulsion of the acrylic acid polymer used in the present invention is obtained by polymerizing one or more monomers selected from acrylic acid monomers, methacrylic acid monomers, acrylic acid ester monomers, and methacrylic acid ester monomers. There is no particular limitation as long as it is an aqueous emulsion having a glass transition point of 20 ° C. or lower, and various aqueous emulsions can be used.
The aqueous emulsion of acrylic acid-based polymer used is used as a film-forming agent, and preferably has a glass transition point (Tg) of -20 ° C or more to 20 from the viewpoint of film-forming property and elasticity of the formed film. It is desirable to use an aqueous emulsion having a temperature of ℃ or less. If the glass transition point is higher than 20 ° C., the elasticity and film forming property of the dried cosmetic material are deteriorated and the durability of the makeup is deteriorated, which is not preferable.
In the present invention, the glass transition point (Tg) was measured as follows. First, a resin was formed into a lacquer shape, a lacquer-like resin was formed into a film, and then the solvent was dried to form a film. The differential scanning calorie was measured by heating the film-formed acrylic resin from -20 ° C to + 150 ° C at a heating rate of 10 ° C / min using a differential scanning calorimeter (DSC) manufactured by Rigaku Corporation. The obtained endothermic curve was differentiated to obtain an inflection point, and this inflection point was determined as Tg.

As an aqueous emulsion of an acrylic acid-based polymer that can be specifically used, iodosol GH800 (glass transition point: -15 ° C, solid content 45%, manufactured by Akzo Nobel), which is an alkyl acrylate copolymer emulsion, and iodosol GH810F. (Glass transition point: 10 ° C., solid content 46%, manufactured by Akzo Nobel), COVACRYL MS11 (glass transition point: 0 ° C., solid content 50%, manufactured by SENSIENT), which is an alkyl acrylate copolymer emulsion, acrylic An alkyl acid copolymer emulsion such as Daitozol 5000AD (glass transition point: -14 ° C, solid content 50%, manufactured by Daito Kasei Kogyo Co., Ltd.) can be used.
In addition, if necessary, for neutralization, for example, 2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol, triethanolamine, L-arginine, Ammonia water, sodium hydroxide or the like may be used.
The content of the aqueous emulsion of these acrylic acid-based polymers is 2 to 30% by mass (hereinafter simply referred to as “%” by mass%) based on the total amount of the liquid cosmetic composition in terms of solid content (resin content). It is preferable that the amount is more preferably 2 to 20%, and further preferably 5 to 15%.
When the content of these aqueous emulsions is 2% or more in terms of solid content (resin content), the water resistance can be improved, while it is 30% or less in terms of solid content (resin content). As a result, good coating performance can be exhibited without drying the coating portion of the coating tool.
In addition, regarding an aqueous emulsion that serves as a film forming agent, a surfactant may be used for the purpose of stabilizing the emulsion itself. Since the surfactant here has little influence on the water resistance and the skin adhesion, which are the performances of the liquid cosmetic, the addition amount is not particularly limited.

The crystalline cellulose used in the present invention not only functions as a thickener, but also functions as a sedimentation inhibitor that prevents hard sedimentation of the pigment, and as a cushioning material that enters between the pigments. It is a cellulose crystallite aggregate having a substantially constant degree of polymerization obtained by acid hydrolysis or alkaline oxidation decomposition, and unlike conventional aqueous solutions of thickening polysaccharides such as xanthan gum, cellulose crystals are dispersed in water. It has the property of becoming particles.
The crystalline cellulose that can be used includes, for example, those composed of colloidal glue obtained by coating the surface of fine cellulose crystals of primary particles with a water-soluble polymer or the like, and specific examples thereof include Ceorus RC- Examples include 591, RC-N81, RC-591NF, CL-611, and ceorus cream [above, manufactured by Asahi Kasei Co., Ltd.].

The content of these crystalline celluloses is preferably 0.1 to 3.0%, more preferably 0.5 to 3.0%, based on the total amount of the liquid cosmetic composition. desirable.
By setting the content of these crystalline celluloses to 0.1% or more, it is possible to increase the viscosity, the cellulose particles prevent the cosmetic from flowing to the wrinkles of the skin, and draw a dense line. On the other hand, when the content is 3.0% or less, it is possible to draw a line with good elongation similar to that of the direct liquid type and the batting type.

In the present invention, an inorganic pigment is used as the coloring material.
The inorganic pigment used in the present invention can be used without particular limitation as long as it is commonly used as a pigment for aqueous cosmetics. For example, carbon black, iron oxide particles (black iron oxide particles, yellow iron oxide particles, etc.), chromium oxide, ultramarine blue, navy blue, zinc oxide, aluminum oxide, silicon dioxide, titanium oxide, magnesium oxide, chromium hydroxide, calcium carbonate, Pearl pigments (high-brightness particles) that are colorants with high specific gravity and large particle size, such as titanium yellow, red iron oxide, titanium dioxide-coated scaly titanium, red iron oxide-coated mica titanium, fish scale foil, and Nε-lauroyl-L-lysine-coated talc. At least one kind of inorganic pigment (each alone or a mixture of two or more kinds) selected from the above.
Further, from the viewpoint of further improving the dispersibility, the above-mentioned inorganic pigments such as carbon black, iron oxide particles, ultramarine blue, dark blue and red iron oxide may be those whose surface is processed with a silicone surface treating agent or the like.

By combining preferable ones from the above-mentioned inorganic pigments, good hues of respective colors can be obtained. For example, carbon black, iron oxide particles, red iron oxide, dark blue, and other black-based or brown-based inorganic pigments can be selectively used to exhibit good hues such as black and brown.
In addition, the average particle size of the inorganic pigment used is preferably 300 nm (0.3 μm) or less, more preferably 20 to 250 nm (from the viewpoint of exhibiting a good hue and dispersibility). It is desirable to use a particle size of 0.02 to 0.25 μm), particularly preferably 20 to 200 nm (0.02 to 0.2 μm).
By using these inorganic pigments having an average particle size, high dispersibility can be realized without aggregation in water, sufficient hue and clogging in the applicator can be prevented, and excellent ejection performance can be realized. Will be things. Here, in the present invention, the “average particle diameter” is obtained by measuring the pigment particles (25 ° C.) in the liquid cosmetic composition with a particle size measuring instrument FPAR-1000 (manufactured by Otsuka Electronics Co., Ltd.) by a dynamic light scattering method. It is a value.

The content of these inorganic pigments is preferably 1 to 30%, more preferably 4 to 25% with respect to the total amount of the liquid cosmetic composition.
If the content of these inorganic pigments is less than 1%, the coloration is insufficient and the composition is insufficient as a cosmetic, while if it exceeds 30%, the viscosity becomes too high and the solution becomes smooth when used in a liquid cosmetic applicator. It will not be ejected, which is not preferable.
In addition, you may use organic pigments, dyes, etc. other than the said inorganic pigment used for the liquid cosmetic composition in the range which does not impair the effect of this invention.

The liquid cosmetic composition of the present invention uses water (including purified water, distilled water, ion-exchanged water, pure water, ultrapure water, etc.) as a solvent. This water content is the balance containing the above-mentioned components and the optional components described below.
Furthermore, the liquid cosmetic composition of the present invention may contain, in addition to the above-mentioned respective components, optional components used in ordinary liquid cosmetic compositions. Specifically, a surfactant, a pigment dispersant, a moisturizer, an antiseptic, an antioxidant, a neutralizer, an ultraviolet absorber, a chelating agent, a moisturizer, a cosmetic ingredient, a fragrance, a viscosity modifier, etc. It can be contained in an appropriate amount within a range that does not impair the effect of.

As the surfactant that can be used, for example, any type of nonionic, cationic, and anionic surfactants can be used. Specifically, lecithin, propylene glycol fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkyl ether phosphoric acid (phosphoric acid ester), polyethylene glycol fatty acid Examples thereof include esters / alkyl sulfates (sulfonates) and polyoxyethylene alkyl ether sulfates.
The content of these surfactants is preferably 0.5% or less with respect to the total amount of the liquid cosmetic, and when it exceeds 0.5%, the water resistance is poor and a sufficient fixing force is obtained. I can't.

In the present invention, in order to further improve the dispersibility of the pigment, a dispersant may be contained if necessary.
The dispersant that can be used is not particularly limited, and includes, for example, AMPHOMER HC, Aqua Dew SPA-30 (sodium polyaspartate: manufactured by Ajinomoto Co., Inc.), NIKKOL BB30 (behenyl polyoxyethylene 30 mol adduct, Nikko Chemicals Co., Ltd.). Etc. can be used, and these dispersants can be contained in the liquid cosmetic in an amount of 0.1 to 5%.
As the chelating agent that can be used, for example, edetic acid or a salt thereof, ethylenediamine triacetic acid or a salt thereof, gluconic acid or a salt thereof, phytic acid or a salt thereof, pyrophosphoric acid or a salt thereof, polyphosphoric acid or a salt thereof, metaphosphoric acid. Or a salt thereof, and hydroxyethanediphosphonic acid or a salt thereof, citric acid or a salt thereof, tartaric acid, gluconic acid, phytic acid, etc., and these chelating agents are 0.01 to 0.5% can be contained.
Moisturizers that can be used include, for example, water such as 1,3-butylene glycol, 1,4-butylene glycol, pentylene glycol, ethylene glycol, diethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol and glycerin. An appropriate amount of soluble glycols can be used.

  Preservatives that can be used include parabens, sodium dehydroacetate, phenoxyethanol and the like. The preservative of the present invention contains a fungicide, and parabens that are preservatives include methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, butyl paraoxybenzoate, and paraoxybenzoic acid. Isopropyl or the like can be used in an appropriate amount.

The liquid cosmetic composition of the present invention has a viscosity of 20 to 500 mPa · s at a temperature of 25 ° C. and a shear rate of 3.83 S ⁻¹ (1 rpm) measured by an ELD viscometer from the viewpoint of stability and applicability. Is preferred.
The more preferable range in the above viscosity range varies depending on the type of compounding ingredients of the liquid cosmetic composition and the application (eyeliner, eyeshadow, skin cosmetics, etc.), but more preferably 20 to 300 mPa · s. Especially, it is desirable that the pressure is 50 to 200 mPa · s.
By setting the viscosity value to 20 mPa · s or more, sagging can be prevented, wrinkles can be prevented, and dense lines can be drawn. On the other hand, if the viscosity value is 500 mPa · s or less, it can be used as a coating means of the present invention. This makes it possible to smoothly discharge the liquid cosmetics contained in the liquid cosmetic applicator using a brush or a pen core.

In the present invention, the viscosity measurement conditions (including examples described later) specifically mean values measured at each shear rate using an ELD type viscometer manufactured by Toki Sangyo Co., Ltd.
More preferably, the viscosity is 10 to 70 mPa · s at a temperature of 25 ° C. and a shear rate of 38.3 S ⁻¹ (10 rpm), and the viscosity at a shear rate of 383 s ⁻¹ (100 rpm) is 5 to 20 mPa · s. desirable.
In order to adjust the viscosity to the above range, the amount of each component such as carbon black, an inorganic pigment such as iron oxide particles, water, an aqueous emulsion serving as a film forming agent, and crystalline cellulose can be appropriately combined.

Furthermore, the liquid cosmetic composition of the present invention preferably has a surface tension at a temperature of 25 ° C. according to the Wilhelmy method (plate method) in the range of 25 to 60 mN / m from the viewpoint of spreadability at the time of application, More preferably, the range of 30 to 45 mN / m is desirable. By setting this surface tension to 25 mN / m or more, there is no bleeding or unevenness in the application drawing line, and smooth application is possible, and by setting it to 60 mN / m or less, the followability of the application liquid is improved. , Can be applied smoothly.
In the present invention, the surface tension is a value obtained at a temperature of 25 ° C. using a CBVP-Z type surface tensiometer (plate method) manufactured by Kyowa Interface Science Co., Ltd.
In order to adjust the surface tension to the above range, the amount of each component such as carbon black, an inorganic pigment such as iron oxide particles, water, an aqueous emulsion serving as a film forming agent, and crystalline cellulose may be appropriately combined. it can.

In the liquid cosmetic composition of the present invention thus configured, a glass transition point of 20 ° C. obtained by polymerizing monomers selected from acrylic acid monomers, methacrylic acid monomers, acrylic acid ester monomers, and methacrylic acid ester monomers. By containing at least the following aqueous emulsion of acrylic acid-based polymer, crystalline cellulose, inorganic pigment, and water, sedimentation / separation of the pigment is small inside the storage portion of the coating liquid before coating, that is, color separation. It is possible to obtain a liquid cosmetic composition which has a low viscosity, which does not blur on the skin even when applied, and which has a low viscosity and has a low viscosity, and which can be drawn deeply.
Further, in the liquid cosmetic composition of the present invention, since it has the above-mentioned blending characteristics, even when using a long thin brush, there is no color unevenness of the drawn line due to the difference in hue, and the liquid cosmetic composition can be drawn deeply. Will be obtained.

In addition, the liquid cosmetic composition of the present invention having the above-mentioned configuration is put to use by being accommodated in a liquid cosmetic applicator having an application part equipped with a brush or a pen core.
In the present invention, as a suitable liquid cosmetic applicator, an eyeliner, eye shadow, eyebrow suitable for point makeup such as around the eyes, or a liquid cosmetic composition (application liquid) is preferably applied to the skin. It is not particularly limited as long as it is a liquid cosmetic applicator with a structure capable of, but is preferably liquid in a batting container or sheet that holds liquid cosmetics in batting, which is excellent in usability, convenience, and applicability. Those having a collector-type container for holding cosmetics, liquid cosmetic compositions which are directly stored in a coating liquid storage section, and have a knockout type or a rotation (rotation) type liquid cosmetics applicator for a coating liquid discharge mechanism. Is mentioned.

In the present invention, a preferred liquid cosmetic applicator comprises at least an application part and a coating liquid storage part, the application part is composed of a brush, and the fibers of the brush include those having a cross section other than circular. A liquid cosmetic applicator in which the liquid cosmetic composition of the present invention is stored in the liquid storage section is preferable.
Examples of the liquid cosmetic applicator of this form include the liquid cosmetic applicator A shown in FIGS. 1 to 8.
As shown in FIG. 1, the liquid cosmetic applicator A of this embodiment is a coating liquid which is the liquid cosmetic composition of the present invention having the above-mentioned configuration provided inside the shaft main body 10 which is the applicator main body. Storage part (accommodation part) 11 and a plug body 12 mounted on the front end part of the shaft main body 10 and sealing the storage part (accommodation part) 11 before the start of use, and on the plug body 12, The sealed state of the storage part (accommodation part) 11 is maintained, and the sealed state of the storage part (accommodation part) 11 is released by being removed from the stopper 12, and the coating liquid is discharged from the storage part (accommodation part) 11. It is provided with a seal ball 13 in a state.

The liquid cosmetic applicator A has a stopper 14 detachably mounted on the outer peripheral surface of the front end portion of the shaft body 10 and a length of the stopper 14 when the stopper 14 is removed at the start of use. Therefore, a front shaft 20 that moves in the axial direction and is directly joined to the shaft body 10 is provided.
On the tip shaft 20, a tip shaft body 21, a pipe joint 22 attached to the tip shaft body 21, which enables the supply of the coating liquid from the storage portion 11 to the brush (coating portion) 23, and the pipe. A coating liquid conduit 24 that connects the joint 22 and the brush (coating part) 23 is provided.

Since the stopper 14 is attached to the shaft body 10 in the state shown in FIG. 1 (the state before the start of use) because of the configuration as described above, the front shaft 20 does not move, and the storage section is not moved. The sealed state of the storage section (accommodation section) 11 is maintained by the plug body 12 (seal ball 13) that seals the (accommodation section) 11.
Then, as shown in FIG. 2, when the stopper 14 is removed at the start of use, the front shaft 20 moves in the axial direction by the length of the stopper 14 and comes into contact with the shaft body 10. That is, the pipe joint 22 of the front shaft 20 and the plug body 12 are joined, and the seal ball 13 mounted on the plug body 12 is removed by the tip of the pipe joint 22.
As a result, the closed state of the storage section (accommodation section) 11 is opened, and the application liquid can be supplied from the storage section 11 to the brush (application section) 23.

A coating liquid discharge mechanism 30 is provided at the rear end of the barrel body 10. The coating liquid discharge mechanism 30 is configured to rotate the canopy 31 to advance the piston 32 by a predetermined distance and draw out a predetermined amount of the coating liquid. The brush 23 is covered with a cap 40.
In FIGS. 1 and 2, reference numeral 15 is a stirring ball that stirs the coating liquid. The coating liquid ejecting mechanism 30 is disclosed in Japanese Patent Application Laid-Open No. 2012-157611 proposed by the present applicant. The coating liquid discharging mechanism 30 may be a rotary type in which the coating liquid is drawn out by rotating the canopy 31, or a knock type in which the coating liquid is drawn out by pressing the canopy 31.

In the liquid cosmetic applicator A configured as described above, first, the stopper 14 is removed, and the cap 40 (the leading shaft body 21) is pushed (moved) to the rear side of the barrel body 10. As a result, the end of the pipe joint 22 comes into contact with the seal ball 13, the seal ball 13 is removed from the seal receiver 12, and the application liquid can be supplied.
After that, the cap 40 is removed, the canopy 31 is rotated, and the piston 31 is moved forward by a predetermined distance, whereby a predetermined amount of the coating liquid is drawn out to the brush 23, and the coating liquid is applied to the portion to be coated of the user. To do.

Next, the brush tip will be specifically described with reference to FIGS. 3 to 8.
The brush 23 is composed of a straight synthetic fiber having a tapered tip, and is composed only of a fiber having a non-circular modified cross-section. In the present embodiment, the cross-section has a non-circular modified cross-section. In the aggregate of the brushes 23a and 23b made of only fibers, the brushes 23a and 23b having the irregular cross section are composed of a plurality of types of brushes having different cross-sectional shapes.
The brush hairs 23a and 23b are welded to each other at one end thereof so as to form one ring-shaped brim-shaped welding end portion 23A.
In addition, a hole 23B for improving the flowability and the replenishment property of the coating liquid is provided in the central portion of the brim-shaped welding end portion 23A. The holes 23B do not necessarily have to be formed when it is not necessary to circulate and replenish the liquid such as the coating liquid so frequently.

  Further, the brush with an irregular cross section means a shape other than a circular shape of the surface perpendicular to the axial direction of the brush, for example, a cross-sectional shape is a star shape, a substantially eyebrows shape, a substantially cross shape, a substantially triangular shape, Examples thereof include a substantially Y shape, a substantially semicircular shape, a substantially rectangular shape, and the like, and a shape having at least one or more protrusions.

Here, a brush having an irregular cross section will be described with reference to FIGS. 4 and 5 by taking as an example a brush having a star-shaped or eyebrows-shaped cross section. It should be noted that although the description will be given by taking a brush with a cross-sectional shape of a substantially star shape and a dark eyebrow type as an example, the present invention is not limited to a substantially star shape and a tangled eyebrow type, and it is also possible to use two types of brushes with irregular cross-sections. It is not limited and may be at least one type or two or more types of irregularly shaped cross-section brush hairs.
Examples of synthetic resin fibers used as a material for brushes include polyesters such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate / isophthalate co-condensation polymers, polyolefins such as polyethylene and polypropylene, nylon 6, nylon 610, A synthetic resin fiber obtained by melt spinning a thermoplastic polymer such as polyamide such as nylon 612 can be mentioned.

As shown in FIG. 4, in the brush 23a having a substantially star-shaped cross section, the dimension Lal between the concave portions facing the tip of the convex portion is 120 μm to 200 μm, and the convex portion facing the tip of the convex portion is opposite. The dimension La2 between the parts is preferably in the range of 140 μm to 250 μm.
It is preferable that the dimension La1 be small and the dimension La2 be large, because the irregularities formed on the outer peripheral surface of the brush can be deepened (large) and a large amount of coating liquid can be retained. On the other hand, when the dimension Lal is made small and the dimension La2 is made large, the stiffness of the brush becomes weak and the application cannot be performed comfortably. Therefore, it is preferable to form it within the above range.

Further, as shown in FIGS. 5 and 6, in the case of the brush 23b having a substantially eyebrows-shaped cross section, the cross-sectional shape is such that FIG. 5 is a shape in which two circles having substantially the same shape are connected. FIG. 6 shows a shape in which two circles having substantially the same shape are connected by a rectangle.
Further, it is preferable to increase the depth dimension (difference between Lbl and Lb2) of the concave portion formed on the outer peripheral surface of the substantially brow-shaped brush 23b since the amount of the coating liquid can be increased.
However, if the connecting portion length dimension Lb2 is too small, the connected state of the two circles may be damaged, and if it is damaged, the brush will have a normal circular cross section and the amount of the coating liquid cannot be increased. Not preferable.
Therefore, Lbl and Lb3 (dimensions to the axis of line symmetry) are 70 μm to 200 μm, Lb2 is 20 μm to 190 μm, Lb4 is in the range of 80 μm to 390 μm, and more preferably Lb1 and Lb3 are 100 μm to 100 μm. 150 μm, Lb2 is 50 μm to 100 μm, and Lb4 is in the range of 150 μm to 300 μm, the fibers are unlikely to be bifurcated when the tip of the brush is tapered, and a recess is likely to remain in the tapered region. Preferably.

The brush 23 is composed of a plurality of types of brushes having different cross-sectional shapes, for example, the above-mentioned brush having a substantially star-shaped cross-section and a brush having a substantially eye-shaped cross-section.
Using a plurality of types of brush hairs having different cross-sectional shapes in this manner is a preferable mode for the following reasons.
(1) When brushes having the same cross-sectional shape are used, the concave and convex portions formed on the outer peripheral surface are fitted to each other to partially or entirely fill the concave portion formed on the outer peripheral surface of the brush, It reduces the voids (gap) between the bristles and reduces the amount of coating liquid contained in the brush. On the other hand, when a plurality of types of brushes having different cross-sectional shapes are used, it is difficult to fit the uneven portion formed on the outer peripheral surface, and the reduction of the gap (gap) between the brushes is suppressed.
(2) Further, when the brush having the same cross-sectional shape is used and the uneven portion formed on the outer peripheral surface of the brush is enlarged, the stiffness of the brush tends to be weak. On the other hand, by using a plurality of types of brushes with different cross-sectional shapes, even when the irregularities on the outer peripheral surface of one brush are made large, the stiffness of the brush can be given by the other brush. Therefore, it is possible to obtain a suitable coating property.

  The thickness of the fiber used for the brush is not limited to this, but it is 0.05 at the minimum equivalent diameter of the cross section perpendicular to the axis of the fiber. Short fibers having a length of about 0.3 mm and a length of about 5 mm to 100 mm are used.

Further, as shown in FIGS. 7 and 8, concave portions 23a1 and 23b1 may be formed on the surface portions of the brush hairs (synthetic resin fibers) 23a and 23b. In this way, since the concave portions 23a1 and 23b1 are formed on the fiber surface in the longitudinal direction (axial direction) from the tips of the brushes 23a and 23b made of synthetic resin, the brushes (synthetic resin fiber) 23a. , 23b, many small voids are formed.
As a result, the coating liquid permeates into these voids, and a large amount of liquid is retained between the brushes (fibers made of synthetic resin).

The size of the recess formed on the surface of such a fiber is not particularly limited, but from the viewpoint of liquid retention, the recess generally has a depth of 20 μm or less, particularly 5 to 10 μm. It is preferable that the average pitch of the irregularities is in the range of 0.1 to 0.5 mm.
Further, even when recesses are formed on the surface portions of the brushes (synthetic resin fibers) 23a and 23b, the equivalent diameter of the section perpendicular to the axis of the recesses is 0.05 mm or more.

The recesses 23a1 and 23b1 may be formed in a spiral shape continuously from one end side to the other end side of the brush (synthetic resin fiber) 23a and 23b.
Further, a convex portion may be formed on the surface portion of the brush (synthetic resin fiber) 23a, 23b, and the convex portion has a spiral shape from one end side to the other end side like the concave portion. It may be formed continuously. In general, it is preferable that the height of the protrusions is 20 μm or less, particularly 5 to 10 μm, and the average pitch of the protrusions is 0.1 to 0.5 mm.

It should be noted that the brush hair (textile made of synthetic resin) is made to contain titanium oxide or the like to form convex portions on the surface portions of 23a and 23b, and a gap is formed in the fiber gap to suppress adhesion of the fiber gap. Good.
Further, the brush 23 may be composed of a plurality of types of brushes having different cross-sectional shapes, and is limited to brushes having a substantially star-shaped cross-section and brushes having a substantially eye-shaped cross-section. It is not something that will be done. For example, it may have a substantially cross shape, a substantially triangular shape, a substantially Y shape, a substantially semicircular shape, a substantially rectangular shape, or the like, and is not limited to two types, and two or more types of irregular cross-sections may be used. You may mix the brush.
This mixing ratio is appropriately set depending on the application of the brush, particularly the required degree of holding property. For example, in the case of mixing a brush with a star-shaped cross-section and a brush with a brow-shaped cross-section. The mixing ratio is preferably 80:20 to 20:80 from the viewpoint of the effect of substantially improving the holding power.
Further, in the above embodiment, all the fibers of the brush 23 have a cross section other than circular, but a mixture of a circular cross section and each of the irregular cross sections (preferably a mixing ratio of 50% or more) is mixed. The cross-section may be one (single).

  In the liquid cosmetic applicator A configured as described above, when a plurality of types of brushes having different cross-sectional shapes with different cross-sectional shapes are used for the brush tip to be the application portion, the gap (gap) between the brush tips is reduced. Is suppressed, and the firmness of the brush can be imparted. Moreover, the liquid cosmetic composition of the present invention does not blur on the skin even when applied to the skin, and has less sagging (dripping). Since it has a low viscosity and a characteristic that it can be drawn deeply, the liquid cosmetic composition serving as a coating solution is sufficiently applied to the brush tip by the synergistic effect of the characteristics of the liquid cosmetic composition and the structural characteristics of the liquid cosmetic applicator. It is possible to obtain a liquid cosmetic applicator that can be included in the above and can be applied comfortably.

FIG. 9 shows a collector type direct liquid type liquid cosmetic applicator containing the liquid cosmetic composition of the present invention.
This liquid cosmetic applicator B is, for example, as shown in FIG. 9, a liquid cosmetic composition 50 of the present invention, which is filled in a tank portion 51 serving as a shaft for directly storing the liquid cosmetic composition 50 without occluding it in batting or the like. Is mentioned. In order to prevent the liquid cosmetic material 50 pushed out from the tank portion 51 from falling off from the pen tip or the air hole when the air inside the tank portion 51 expands due to a temperature rise or the like, the front portion of the tank portion 51 is temporarily suspended. A sheet-shaped body (ink storage body, collector member) 52 for storing is built-in, and a pen tip (brush tip) 53 as a coating body is provided at the tip of the collector member 52. There is. As the brush-shaped pen tip (brush tip) 53, the brush tip 23 having the irregular cross section used in the liquid cosmetic applicator A can be used.

The liquid cosmetic material is discharged from the tank portion 51 to the pen tip 53 by applying the liquid cosmetic material 50 from the tank portion 51 via a relay core 55 provided with a coating liquid flow path 54 attached to the central hole of the collector member 52. It is performed by leading out to the pen tip 53 which becomes a copy.
In FIG. 9, reference numerals 56 and 57 are holder members, 58 is a rear shaft body fixed to the rear portion of the tank portion 51, and 59 is a cap having an inner cap. Further, the liquid cosmetic may be led out by directly disposing the rear portion of the pen tip 53 inside the tank portion 51 without interposing the relay core 55.
By removing the cap 59, the liquid cosmetic applicator B of this form can be used in the same manner as the liquid cosmetic applicator A.

FIG. 10 shows the liquid cosmetic composition of the present invention used in a batting type liquid cosmetic applicator.
The liquid cosmetic applicator C of this form has, for example, as shown in FIG. 10, an inner shaft 61 inside a cosmetic body 60, and the inner shaft 61 is impregnated with the liquid cosmetic composition of the present invention. The impregnated body 62 made of the filled batting or the like is accommodated, and the tip end side of the impregnated body 62 is an application body 63 composed of a brush ear having a modified cross section used in the liquid cosmetics application tool A for applying the liquid cosmetics. And a tail plug 64 is fixed to the rear end of the inner shaft 61. Incidentally, 65 is a cap body having an inner cap portion 66. The liquid cosmetic applicator C of this form is used by removing the cap 65.

In the liquid cosmetic applicator shown in FIG. 9 or 10 having such a structure, the liquid cosmetic composition of the present invention, which serves as a coating liquid, can be sufficiently contained in the brush and applied comfortably. It is possible to obtain a liquid cosmetic applicator capable of
In the liquid cosmetic applicators A to C of the above-described embodiment, the brush of the brush having a modified cross-section other than a circular cross-section was used. It has a characteristic that it does not blur on the skin even when applied on the skin, has a low viscosity with less sagging (dripping), and can be drawn thickly. Therefore, the brush tip of each of the above-mentioned Embodiments A to C has a straight line with a tapered tip. The cross-section may be a circular cross-section, which is made of a synthetic fiber having a circular shape.

  Next, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples and the like.

[Examples 1 to 5 and Comparative Examples 1 and 2]
A liquid cosmetic composition (compounding unit: mass%, total amount 100 mass%) having a formulation shown in Table 1 below was prepared by wet milling treatment with a media mill and mixing and stirring with a disper mixer, and each liquid was measured by the above-described measurement method. While measuring the viscosity value at each shear rate of the cosmetic composition, the particle size, the surface tension, using the liquid cosmetic applicator having the following configuration, by the following evaluation methods, anti-flattering resistance (liquid holding force), The difference in density between the brush ears (color difference between hues), stability, coating performance (presence of blurring, presence of density difference), and makeup retention were evaluated.
The results are shown in Table 1 below.

(Composition of liquid cosmetic applicator)
A liquid cosmetic applicator according to FIGS. 1 to 3 was used.
The following composition was used as a brush.
(1) Star-shaped cross-section fibers (see FIG. 4): La1 130 mm, La2 150 mm
Fibers of eyebrow cross section (see FIG. 5): Lb1 95 mm, Lb2 75 mm, Lb3 90 mm, Lb4 185 mm, and the mixing ratio of star: eyebrow was 70:30.

[Evaluation method of dripping resistance (liquid holding power)]
Transfer each liquid cosmetic composition (coating liquid) to a deep dish container, immerse 1.5 mm from the tip of the coating part in the coating liquid, and then immerse the entire coating part in the coating liquid. The amount of the liquid was measured and evaluated according to the following evaluation criteria.
Evaluation criteria:
A: 30 mg or more O: 25 mg or more and less than 30 mg B: 15 mg or more and less than 25 mg X: less than 15 mg

[Evaluation method for difference in density (difference in hue) within the brush head]
After filling each liquid cosmetic composition and discharging the coating liquid to the brush tip which is the application part, the cap was put and the application part faced down and left still for 7 days. A sensory evaluation was conducted by visually observing the difference between the density near the tip and the density difference / hue difference within the drawn line when drawn.
Evaluation criteria:
⊚: There is no difference in density or hue between the brush and the stroke.
◯: A slight density difference / hue difference is seen in the brush head, but when drawing, no density difference / hue difference is felt at the beginning and after drawing of the drawing line.
Δ: Density difference / hue difference is clearly seen within the brush, and even when drawing is performed, there is a clear density difference / hue difference after the beginning of drawing.
X: Sedimentation of the pigment in the brush is confirmed, and drawing is not possible or even if drawing is possible, blurring is noticeable.

(Stability evaluation method)
Each liquid cosmetic composition as a content liquid was placed in a glass container with a lid and stored in a constant temperature bath at 50 ° C. for 10 days, and its appearance was evaluated according to the following evaluation criteria.
Evaluation criteria:
◯: There is no vertical difference or separation.
Δ: There is a little supernatant.
X: There is a precipitate, and it does not become uniform immediately even after stirring.

[Evaluation method of coating performance (whether there is blurring, whether there is a difference in concentration)]
The liquid pen is filled in the brush pen type cosmetic container shown in FIG. 2, and five lines with a width of 1 to 2 mm and a length of about 5 cm are drawn on the back of the hand, and the drawing condition and the drawing line density are sensory evaluated according to the following evaluation criteria. did.
Evaluation criteria:
⊚: There is no blurring and there is no difference in density, and the lines are dark and easy to draw.
◯: Slightly inferior to the above ◎, blurring, no difference in density, easy to draw, and sufficient density.
Δ: There is some blurring and bleeding, but it is judged to be in the practical range.
×: Blurred, bleeding, and dissatisfied.

(Evaluation method for makeup retention)
Each liquid cosmetic was filled in the brush pen type cosmetic container shown in FIG. 2, the eyeline was drawn, and the makeup retention was sensory-evaluated by the following evaluation criteria based on the state of the eyeline after 5 hours.
Evaluation criteria:
◯: No change.
Δ: A little thin, but almost no change.
×: Peeled off, the line spreads, and the makeup is broken.

* 1 to * 7 in Table 1 above are as follows.
* 1: UNIPURE BLACK LC902 (manufactured by Sensient)
* 2: Bengala 216P (manufactured by Daito Kasei Kogyo Co., Ltd.)
* 3: Conju No. 671 (manufactured by Daito Kasei Kogyo Co., Ltd.)
* 4: Iodozol GH800F (glass transition point: -15 ° C, solid content 45%, manufactured by Akzo Nobel)
* 5: Iodozol GH810F (glass transition point: 10 ° C, solid content 46%, manufactured by Akzo Nobel)
* 6: Vinizole 1076 (glass transition point: 50 ° C, solid content: 35%), manufactured by Daido Chemical Co., Ltd. * 7: Ceoras RC-N30, manufactured by Asahi Kasei Chemicals Corporation

As is clear from the results of Table 1 above, the liquid cosmetic compositions of Examples 1 to 5, which fall within the scope of the present invention, have a resistance to falling off as compared with Comparative Examples 1 and 2 which fall outside the scope of the present invention. (Liquid holding power), difference in vertical density in brush (color difference in hue), coating performance (presence or absence of blurring, presence or absence of density difference), and stability were found to be excellent.
Looking at the comparative examples individually, Comparative Example 1 is a case where the crystalline cellulose is not included, Comparative Example 2 is a case where the Tg of the aqueous emulsion of the acrylic acid-based polymer is higher than 20 ° C., and in these cases, It has been found that the effects of the present invention cannot be exhibited.
Further, in the above embodiment, the fiber cross section of the coating part (brush) 23 has a modified cross section other than a circular shape, but the cross section of the coating part (brush) 23 has a circular cross section: outer diameter φ: 0.15 mm, Even when the overall length is 17 mm, the outer diameter of the brim-shaped welded end portion 23A is 3 mm, and the tip is processed into a taper shape, compared to Examples 1 to 3, the dripping resistance (liquid holding force), in the brush tip The density difference (hue difference), stability, coating performance (whether there is blurring, whether there is a density difference) was slightly inferior (○, △, △, △) for each evaluation, makeup lasting (evaluation: ○) It was found that it was superior to Comparative Examples 1 and 2.

  A liquid cosmetic composition suitable for an eyeliner or an eyebrow can be obtained.

1 Applicator 10 Shaft body 11 Storage part (accommodation part)
12 Stopper 13 Seal Ball 14 Stopper 20 Tip Axis 21 Tip Axis Main Body 23 Brush Ear (Coating Section)
23a Modified cross-section fiber (star type)
23al recess 23b modified cross-section fiber (eyebrows type)
23bl recess 23A collar-shaped welding end
23B hole

The present invention relates to a liquid cosmetic applicator suitable for eyeliner, eyeshadow, eyebrow, etc., which is suitable for point makeup such as around the eyes, and more specifically, it does not rub on the skin even when applied and drops The present invention relates to a liquid cosmetic applicator which has a low viscosity and a low viscosity, and can be drawn deeply, and which has a good makeup retention.

The present invention has been made in view of the problems and the current situation of the above-mentioned conventional techniques, and is intended to solve the problems, and an applicator having an applicator using a brush tip made of a fine fiber bundle suitable for point makeup such as around the eyes. aims when used even without blur on the skin even if applied, drawn darker with less low viscosity of dripping (dripping), yet provides becomes a makeup with good liquid cosmetic applicator in And

In view of the above-mentioned conventional problems, the present inventors have conducted earnest research, and as a result, they are obtained by polymerizing monomers selected from acrylic acid monomers, methacrylic acid monomers, acrylic acid ester monomers, and methacrylic acid ester monomers. It has been found that a liquid cosmetic applicator for the above purpose can be obtained by containing an aqueous emulsion of an acrylic acid-based polymer having specific physical properties, crystalline cellulose, an inorganic pigment containing at least carbon black, and water, and the present invention It was completed.

That is, the present invention resides in the following (1) to ( 5 ).
(1) At least an application section and a coating solution storage section are provided, the application section is composed of a brush, and the fibers of the brush include those having a cross section other than a circular shape, and the coating solution storage section stores the coating solution. A liquid cosmetic applicator configured to advance a piston by a predetermined distance and draw out a predetermined amount of the coating liquid, wherein the coating liquid is
Acrylic acid monomer, methacrylic acid monomer, and an aqueous emulsion of a glass transition point 20 ° C. The following acrylic polymer obtained by polymerizing a monomer together selected acrylate monomer, methacrylic acid ester monomers, and crystalline cellulose, the following an inorganic pigment selected from group a, becomes a water from at least including liquids cosmetic composition,
The viscosity at an shearing rate of 3.83 S ⁻¹ at a temperature of 25 ° C. measured by an ELD viscometer is 20 to 500 mPa · s,
A liquid cosmetic applicator having a surface tension of 25 to 60 mN / m at 25 ° C. measured by a plate method.
Group A: carbon black, iron oxide particles, chromium oxide, ultramarine blue, navy blue, zinc oxide, aluminum oxide, silicon dioxide, titanium oxide, magnesium oxide, chromium hydroxide, calcium carbonate, titanium yellow, red iron oxide (2) The acrylic acid type 2 to 30% by mass of an aqueous polymer emulsion (solid content conversion), 0.1 to 3.0% by mass of the crystalline cellulose, and 1 to 30% by mass of the inorganic pigment are contained in the above (1). The liquid cosmetic applicator described .
(3) The average particle diameter size (25 ° C.) of the inorganic pigment in the liquid cosmetic composition has a value determined by a dynamic light scattering method of 20 to 300 nm. (1) or ( The liquid cosmetic applicator according to 2).
(4) The liquid cosmetic applicator according to any one of the above (1) to (3), wherein the application unit and the liquid storage unit include a pipe joint and an application liquid conduit .
(5) The liquid cosmetic applicator according to any one of the above (1) to (4), wherein all the fibers of the brush have a cross section other than a circular shape.

According to the present invention, a liquid cosmetic composition that does not blur on the skin even when applied and has a low viscosity with less dripping (bleeding) is contained, so that when a long thin brush is used. Also, there is provided a liquid cosmetic applicator that can be drawn darkly without causing color unevenness due to the difference in hue, and has a good makeup retention.

The content of these crystalline celluloses is preferably 0.1 to 6.0 %, more preferably 0.5 to 6.0 % with respect to the total amount of the liquid cosmetic composition. desirable.
By setting the content of these crystalline celluloses to 0.1% or more, it is possible to increase the viscosity, the cellulose particles prevent the cosmetic from flowing to the wrinkles of the skin, and draw a dense line. On the other hand, when the content is 6.0 % or less, it is possible to draw a line with good elongation similar to that of the direct liquid type and the batting type.

As the surfactant that can be used, for example, any type of nonionic, cationic, and anionic surfactants can be used. Specifically, lecithin, propylene glycol fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkyl ether phosphoric acid (phosphoric acid ester), polyethylene glycol fatty acid Examples thereof include esters / alkyl sulfates (sulfonates) and polyoxyethylene alkyl ether sulfates.
The content of these surfactants is 2.1 % or less , preferably 0.2 to 2.1%, and more than 2.1% based on the total amount of the liquid cosmetic. Inferior in water resistance and unable to obtain sufficient fixing strength.

Claims (6)

  Aqueous emulsion of acrylic acid-based polymer having a glass transition point of 20 ° C. or lower obtained by polymerizing monomers selected from acrylic acid monomer, methacrylic acid monomer, acrylic acid ester monomer, and methacrylic acid ester monomer, crystalline cellulose, and inorganic A liquid cosmetic composition comprising at least a pigment and water.   2-30 mass% of the aqueous emulsion (solid content conversion) of the acrylic acid-based polymer, 0.1-3.0 mass% of the crystalline cellulose, and 1-30 mass% of the inorganic pigment are contained. Item 2. The liquid cosmetic composition according to item 1.   The liquid cosmetic composition according to claim 1 or 2, comprising iron oxide particles as the inorganic pigment. The liquid cosmetic composition according to any one of claims 1 to 3, wherein a viscosity at an shearing rate of 3.83 S ^-1 at a temperature of 25 ° C measured by an ELD viscometer is 20 to 500 mPa · s. .   At least an application section and a coating solution storage section are provided, the application section is composed of a brush, and the fibers of the brush include those having a cross section other than a circular shape. The coating solution storage section according to claim 1. Item 11. A liquid cosmetic applicator, which stores the liquid cosmetic composition according to item.   The liquid cosmetic applicator according to claim 5, wherein all the fibers of the brush have a cross section other than a circular shape.

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