KR20230040985A - eye makeup cosmetics - Google Patents

Abstract

An eye makeup cosmetic comprising fibers having a film containing an acrylic polymer on their surface.

Description

eye makeup cosmetics

The present invention relates to eye makeup cosmetics.

Conventionally, eye makeup cosmetics used for eyelashes and eyebrows have the effect of trimming the flow and shape of hair to make them look more beautiful, and as a function required of cosmetics for eyelashes in particular, for example, eyelashes to make the eyes look bigger. and increasing length, volume and/or curling force. In order to give a longer lash feeling, various fibers may be blended.

However, the attachment of the fibers to the eyelashes and eyebrows is largely dependent on accidental factors, and the long lash feeling is hardly produced depending on the number of times of application by the user or the nature of the fibers. In addition, if the fibers did not follow the flow of the hair during application and adhered unevenly, the beauty of appearance was damaged, such as becoming branched. Therefore, attempts to improve the dispersibility of fibers have been continued by surface treatment to fibers or blending raw materials, but these are effective in improving uneven adhesion, but are insufficient as an approach in terms of making fibers adhere to hair more. However, it could not be said to enhance the long lash effect.

Japanese Unexamined Patent Publication No. 7-179323 Japanese Unexamined Patent Publication No. 2002-255745

As described above, the known eye makeup cosmetics still have room for improvement, and the present application aims to provide eye makeup cosmetics containing fibers having improved adhesion to eyelashes and the like.

In order to solve the above problems, the inventors of the present invention, as a result of repeated research, found that fibers whose surfaces were treated with acrylic polymers improved adhesion to eyelashes and the like, and completed the present invention.

That is, although the present invention relates to the following, it is not limited thereto.

[Invention 1]

An eye makeup cosmetic comprising fibers having a film containing an acrylic polymer on their surface.

[Invention 2]

The eye makeup cosmetic according to Invention 1, wherein the film contains a hydrophobic silicone compound.

[Invention 3]

The eye makeup cosmetic according to Invention 1 or 2, wherein the film contains a hydrophobic (meth)acrylic acid ester (co)polymer and a hydrophilic (meth)acrylic acid ester (co)polymer as the acrylic polymer.

[Invention 4]

The eye makeup cosmetic according to any one of Inventions 1 to 3, wherein the fiber has a thickness of 1 to 13 denier and a length of 0.2 to 6 mm.

The eye makeup cosmetic of the present invention has excellent adhesion to eyelashes or eyebrows.

Although various alternative forms are possible for the present invention, specific aspects of the present invention are described in detail herein. However, the detailed description of a specific aspect in this specification is not intended to limit the present invention to the specific aspect, and the present invention includes all alternative forms included in the spirit and scope of the present invention defined in the claims. do.

In this specification, the terms "above" and "below" used together with numerical values are not only understood as a numerical range including the numerical value, but also can be read as a numerical range not including the numerical value, and the expression In other words, it is possible to read the above terms interchangeably with "more than" and "less than", respectively.

eye makeup cosmetics

Eye make-up cosmetics means cosmetics used around the eyes, and preferably means cosmetics for eyelashes and cosmetics for eyebrows. Cosmetics for eyelashes (curls) are also called mascara, and are intended to show eyelashes thick, long, and/or curled. Cosmetics for eyebrows, also called eyebrows, are used to change the color of eyebrows by trimming the flow or shape of the eyebrows and sometimes overlapping colors.

The eye makeup cosmetic of the present invention (hereinafter referred to as "the cosmetic of the present invention") contains fibers having a coating containing an acrylic polymer on the surface. The cosmetic form of the present invention is not particularly limited. For example, liquid, emulsion, gel, cream, solid, etc. are mentioned.

fiber

Examples of fibers that form a film containing an acrylic polymer on the surface include synthetic fibers such as nylon, polypropylene, polyester, and polylactic acid; natural fibers such as cellulose, cotton, silk, and wool; Although regenerated fibers, such as rayon, etc. are mentioned, it is not specifically limited as long as it is permissible cosmetically. The fiber thickness is not particularly limited, but is preferably 1 to 13 denier (hereinafter referred to as D), and more preferably 4 to 8D. The length of the fiber is not particularly limited, but is preferably 0.2 to 6 mm, and more preferably 1 to 3 mm. These fibers can be used singly or in combination of two or more in terms of material, thickness or length.

film

The coating formed on the surface of the fiber may be formed on a part of the fiber or may be formed on the entire fiber. The film is formed by treating the surface of fibers with a composition containing an acrylic polymer.

acrylic polymer

The acrylic polymer contained in the film formed on the fiber is used for surface treatment of the fiber to form a film on the surface of the fiber. An acrylic polymer means a (co)polymer having a structure represented by the following formula (1). In formula (1), R ₁ represents a hydrogen atom or a methyl group. In formula (1), R ₂ represents a carboxy group, an alkoxycarbonyl group, an aminocarbonyl group, a nitrile group or the like, but is not limited thereto. Also, the acrylic polymer may be an alkali metal salt such as sodium salt or potassium salt. The alkoxy group in the alkoxycarbonyl group is not particularly limited as long as it is an alkoxy group having 1 to 20 carbon atoms, but an alkoxy group having 1 to 10 carbon atoms is preferable, and an alkoxy group having 1 to 6 carbon atoms is more preferable. As a C1-C6 alkoxy group, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentyloxy group, a hexyloxy group etc. are mentioned, for example. In addition, in this specification, a "(co)polymer" means both a homopolymer and a copolymer. A "(meth)acryl" means both an acryl and methacryl. Similarly, for "(meth)acrylo", "(meth)acryloyl" and "(meth)acrylate", acrylo and methacryl, acryloyl and methacryloyl, and acrylate and methacrylate each means

As an acryl-type polymer, a hydrophobic acryl-type polymer, a hydrophilic acryl-type polymer, etc. are mentioned, for example. More specifically, hydrophobic (meth)acrylic acid (co)polymer or salt thereof, hydrophilic (meth)acrylic acid (co)polymer or salt thereof, hydrophobic (meth)acrylic acid ester (co)polymer, hydrophilic (meth)acrylic acid (co)polymer or salt thereof Acrylic acid ester (co)polymer, hydrophobic (meth)acrylamide (co)polymer, hydrophilic (meth)acrylamide (co)polymer, hydrophobic (meth)acrylonitrile (co)polymer, hydrophilic (meth)acrylic acid A ronitrile (co)polymer etc. are mentioned. The molecular weight of the acrylic polymer is not particularly limited. The glass transition temperature (Tg) of the acrylic polymer is not particularly limited, but is preferably 25°C or lower, more preferably 0°C or lower, still more preferably -40°C or lower. These polymers may be used individually by 1 type, and may be used in combination of 2 or more type. In addition, when combining two or more types of acrylic polymers and using them for surface treatment of fibers, it is preferable to use a combination of a hydrophobic acrylic polymer and a hydrophilic acrylic polymer.

More specifically, a combination of a hydrophobic (meth)acrylic acid (co)polymer or salt thereof and a hydrophilic (meth)acrylic acid (co)polymer or salt thereof; a combination of a hydrophobic (meth)acrylic acid (co)polymer or a salt thereof and a hydrophilic (meth)acrylic acid ester (co)polymer; a combination of a hydrophobic (meth)acrylic acid (co)polymer or a salt thereof and a hydrophilic (meth)acrylic acid amide (co)polymer; a combination of a hydrophobic (meth)acrylic acid (co)polymer or a salt thereof and a hydrophilic (meth)acrylonitrile (co)polymer; a combination of a hydrophobic (meth)acrylic acid ester (co)polymer and a hydrophilic (meth)acrylic acid (co)polymer or a salt thereof; a combination of a hydrophobic (meth)acrylic acid ester (co)polymer and a hydrophilic (meth)acrylic acid ester (co)polymer; a combination of a hydrophobic (meth)acrylic acid ester (co)polymer and a hydrophilic (meth)acrylic acid amide (co)polymer; a combination of a hydrophobic (meth)acrylic acid ester (co)polymer and a hydrophilic (meth)acrylonitrile (co)polymer; a combination of a hydrophobic (meth)acrylic acid amide (co)polymer and a hydrophilic (meth)acrylic acid (co)polymer or a salt thereof; a combination of a hydrophobic (meth)acrylic acid amide (co)polymer and a hydrophilic (meth)acrylic acid ester (co)polymer; a combination of a hydrophobic (meth)acrylamide (co)polymer and a hydrophilic (meth)acrylamide (co)polymer; a combination of a hydrophobic (meth)acrylamide (co)polymer and a hydrophilic (meth)acrylonitrile (co)polymer; a combination of a hydrophobic (meth)acrylonitrile (co)polymer and a hydrophilic (meth)acrylic acid (co)polymer or a salt thereof; a combination of a hydrophobic (meth)acrylonitrile (co)polymer and a hydrophilic (meth)acrylic acid ester (co)polymer; a combination of a hydrophobic (meth)acrylonitrile (co)polymer and a hydrophilic (meth)acrylamide (co)polymer; a combination of a hydrophobic (meth)acrylonitrile (co)polymer and a hydrophilic (meth)acrylonitrile (co)polymer; etc. can be mentioned.

When a hydrophobic acrylic polymer and a hydrophilic acrylic polymer are used in combination, the ratio [w/o] of the mass (o) of the hydrophobic acrylic polymer and the mass (w) of the hydrophilic acrylic polymer is preferably 0.05 or more. And, it is more preferably 0.10 or more, and particularly preferably 0.25 or more. Further, the ratio [w/o] is preferably 4.00 or less, more preferably 2.00 or less, and particularly preferably 1.00 or less.

As various copolymers, those having two or more types of structures represented by formula (1) may be used, and at least one type of structure represented by formula (1) and at least one type of residues of other polymerizable unsaturated bond-containing monomers may be used. It may be what you have. These copolymers are polymerized using two or more types of monomers having a structure represented by formula (1) (hereinafter referred to as "acrylic monomers"), or polymerization of at least one type of acrylic monomer and at least one type of other polymerization. It can be manufactured by polymerization using a monomer containing a sexually unsaturated bond. The ratio of each monomer that can be used in the preparation of the copolymer is not particularly limited. In addition, various homopolymers can be produced by polymerizing an acrylic monomer.

Examples of the acrylic monomer used for production of the acrylic polymer include, but are not particularly limited to, (meth)acrylic acid or a salt thereof, (meth)acrylic acid ester, (meth)acrylic acid amide, and (meth)acrylonitrile. . As (meth)acrylic acid ester, it is C1-C20 alkyl (meth)acrylate, for example; C1-C20 alkyl (meth)acrylate which has hydrophilic groups, such as a hydroxyl group, a carboxy group, an amino group, a phosphoric acid group, and a sulfo group; etc. can be mentioned. More specifically, methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, isopropyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, s-butyl (meth)acrylate , (meth)acrylate t-butyl, (meth)acrylate pentyl, (meth)acrylate s-pentyl, (meth)acrylate 1-ethylpropyl, (meth)acrylate 2-methylbutyl, (meth)acrylate isopentyl, (meth)acrylate ) t-pentyl acrylate, 3-methylbutyl (meth)acrylate, neopentyl (meth)acrylate, hexyl (meth)acrylate, 2-methylpentyl (meth)acrylate, 4-methylpentyl (meth)acrylate, (meth)acrylic acid 2-ethylbutyl, (meth)acrylate cyclopentyl, (meth)acrylate cyclohexyl, (meth)acrylate heptyl, (meth)acrylate 2-heptyl, (meth)acrylate 3-heptyl, (meth)acrylate octyl, (meth) 2-octyl acrylate, 2-ethylhexyl (meth)acrylate, isooctyl (meth)acrylate, nonyl (meth)acrylate, 3,3,5-trimethylhexyl (meth)acrylate, decyl (meth)acrylate, (meth)acrylic acid Undecyl, lauryl (meth)acrylate, cetyl (meth)acrylate, stearyl (meth)acrylate, eicosyl (meth)acrylate, docosyl (meth)acrylate, tetracosyl (meth)acrylate, methyl (meth)acrylate Cyclohexyl, isobornyl (meth)acrylate, norbornyl (meth)acrylate, benzyl (meth)acrylate, phenethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxy (meth)acrylate Propyl, (meth)acrylic acid 2,3-dihydroxypropyl, ((meth)acryloyloxy)acetic acid, succinic acid 1-[2-((meth)acryloyloxy)ethyl], (meth)acryloyldimethylamino Ethyl, (meth)acryloyloxyethyltrimethylammonium chloride, [2-((meth)acryloyloxy)ethyl] phosphate, 2-((meth)acryloyloxy)ethanesulfonic acid sodium, etc. are mentioned.

Examples of the polymerizable unsaturated bond-containing monomer include hydrocarbon compounds having a polymerizable unsaturated bond at terminals such as ethylene, propylene, and 1,3-butadiene; α,β-unsaturated polyhydric carboxylic acids such as maleic acid and fumaric acid, α,β-unsaturated carboxylic acid anhydrides such as maleic anhydride; maleimide group-containing compounds such as N-methylmaleimide; Aromatic vinyl compounds, such as styrene and vinyl benzoic acid; etc. can be mentioned.

When the acrylic polymer is a copolymer, it may be a block copolymer or a random copolymer. Both a block copolymerization part and a random copolymerization part may exist in a copolymer.

In the present specification, the glass transition temperature [Tg (K: Kelvin)] of an acrylic polymer represents a value calculated by Fox's formula (1 / Tg = Σ (Wi / Tgi)) (in the formula, i is an integer greater than or equal to 1, Wi (i = 1, 2, ... i) is the mass fraction of each monomer, Tgi (i = 1, 2, ... i) is the glass transition of i homopolymer of each monomer indicates temperature (Kelvin)).

In the production of acrylic polymers, polymerization of various monomers is performed by methods such as radical polymerization, cationic polymerization, and anionic polymerization. Further, after polymerization, the acrylic polymer may be denatured using a denaturing agent. The polymerization reaction temperature is not particularly limited, but is usually within the range of 70°C or more and 200°C or less. The reaction time is not particularly limited, but is usually within the range of 10 minutes or more and 24 hours or less.

menstruum

The solvent is not limited as long as it is cosmetically acceptable, and examples thereof include water, volatile oils such as isododecane, non-volatile oils, and arbitrary combinations thereof.

The composition may also contain other components, such as a solvent, a hydrophobic silicone compound, and additives, in addition to the acrylic polymer.

hydrophobic silicone compound

The composition may contain one or more hydrophobic silicone compounds in order to improve or adjust the adhesion, adhesion uniformity and/or dispersibility of fibers to the eyelashes or eyebrows. Examples of the hydrophobic silicone compound include organopolysiloxanes such as methylhydrogenpolysiloxane, cyclic methylhydrogenpolysiloxane, dimethylpolysiloxane, cyclic dimethylpolysiloxane, and methylphenylpolysiloxane; Amino-modified silicone, epoxy-modified silicone, carboxyl-modified silicone, carbinol-modified silicone, methacryl-modified silicone, mercapto-modified silicone, phenol-modified silicone, polyether-modified silicone, methylstyryl-modified silicone, alkyl-modified silicone, higher fatty acid esters silicone resins such as modified silicones such as modified silicones, higher alcohol-modified silicones, alkyl acrylate/methylsiloxane copolymers, or organosiloxane copolymers, and trimethylsiloxysilicic acid; crosslinked methylpolysiloxanes are exemplified. Although one or two or more of these can be selected arbitrarily, it is not limited thereto, and derivatives thereof may be used.

The hydrophobic silicone compound is represented by -SiR ¹ R ² R ³ (wherein R ¹ , R ² and R ³ independently represent an alkyl group having 1 to 4 carbon atoms, an alkoxy group, or a hydroxyl group) in one molecule. Although it has two or more functional groups (a), it is preferable that the molecular weight (weight average molecular weight/number of functional groups) per functional group (a) is within the range of 100 to 5000. In addition, the said weight average molecular weight can be measured by gel filtration chromatography (GFC), and is a value converted into polyethylene glycol.

additive

As additives, for example, surfactants, thickeners such as dimethylstearylammonium hectorite, gelling agents such as dextrin palmitate, anticaking agents, emulsifiers, dispersing agents, stabilizers, moisturizing agents, viscosity modifiers such as propylene carbonate, beeswax, Solidifying agents such as ceresin, binders, extenders such as talc, opacifying agents, lubricants, pigments, ultraviolet scattering agents, ultraviolet absorbers, pH adjusters, antioxidants, antibacterial agents, preservatives, skin care agents, lubricants, astringents, emollients, gloss agents , brightening agents, antifoaming agents, water-repellent coating agents such as trimethylsiloxysilicic acid, and protective agents, but are not particularly limited as long as they are acceptable for cosmetics. You may contain what these two or more uses and effects overlap.

As a film component on the fiber surface, the content of the acrylic polymer is preferably 50% by mass or more, more preferably 60% by mass or more, and still more preferably 70% by mass or more, based on the total amount of components contained in the film. Especially preferably, it is 80 mass % or more. The content of the acrylic polymer is 100% by mass or less, preferably 97% by mass or less, more preferably 95% by mass or less, still more preferably 92% by mass or less, and particularly preferably 90% by mass or less. When a hydrophobic acrylic polymer and a hydrophilic acrylic polymer are contained in the film as the acrylic polymer, the content of the hydrophilic acrylic polymer is preferably 5% by mass or more, more preferably 10% by mass or more, based on the total amount of the acrylic polymer. and more preferably 15% by mass or more. The content of the hydrophilic acrylic polymer is preferably 85% by mass or less, more preferably 75% by mass or less, still more preferably 65% by mass or less. When the hydrophobic silicone compound is contained in the film, the content of the hydrophobic silicone compound is preferably 3% by mass or more, more preferably 5% by mass or more, and still more preferably 8% by mass relative to the total amount of components contained in the film. It is mass % or more, Especially preferably, it is 10 mass % or more. The content of the hydrophobic silicone compound is preferably 50% by mass or less, more preferably 40% by mass or less, still more preferably 30% by mass or less, and particularly preferably 20% by mass or less.

In the cosmetic composition of the present invention, the blending amount of fibers having a coating containing an acrylic polymer on the surface varies depending on the type of fiber, but is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass. . The amount (mass) of the acrylic polymer in the film formed on the surface of the fiber is preferably 0.0035% or more relative to the amount (mass) of the fiber for which the film containing the acrylic polymer is formed on the surface, and is dispersed in view of adhesiveness. In terms of performance, it is preferably 20% or less with respect to the amount of fibers for forming a film containing an acrylic polymer on the surface. That is, the amount of the acrylic polymer in the film formed on the fiber surface is preferably 0.0035 to 20%, more preferably 0.005 to 5%, relative to the amount of the fiber for forming a film containing the acrylic polymer on the surface. Preferably it is 0.007 to 0.2%.

In the cosmetic composition of the present invention, when the film contains a hydrophobic silicone compound, the amount (mass) is relative to the amount (mass) of fibers for forming a film containing an acrylic polymer on the surface in order to obtain a smooth feeling of use. 0.0005% or more is preferable, and from the viewpoint of adhesion and/or adhesion uniformity, 5% or less is preferable with respect to the amount of fibers for forming a film containing an acrylic polymer on the surface. That is, it is preferably 0.0005 to 5%, more preferably 0.0005 to 1%, still more preferably 0.0009 to 0.1%. Alternatively, the mass ratio of the amount of the hydrophobic silicone compound in the film formed on the fiber surface and the amount of the acrylic polymer in the film formed on the fiber surface (amount of hydrophobic silicone compound/amount of acrylic polymer) may be determined, preferably 0.04 to 0.04. 2, more preferably 0.05 to 1, still more preferably 0.06 to 0.5, still more preferably 0.1 to 0.3.

manufacturing method

The cosmetic composition of the present invention can be prepared according to common prescription examples according to the technical common sense of those skilled in the art. The method, order, and the like of blending each component are arbitrary according to the technical common sense of those skilled in the art. For example, a composition prepared by mixing a solvent and an acrylic polymer, further mixing a hydrophobic silicone compound, additives, etc. as necessary, bringing the composition into contact with fibers, drying the solvent, etc., to obtain a predetermined film get fiber Subsequently, the cosmetic of the present invention can be produced by blending the resulting fiber having a predetermined coating with other cosmetic components such as a solvent and an additive. In addition, the hydrophobic silicone compound may not be included in the composition containing the acrylic polymer, and the composition containing the hydrophobic silicone compound may be brought into contact with the fiber before or after contacting the fiber with the composition containing the acrylic polymer.

The contact method between the composition and fibers is not particularly limited, and examples include a method of applying or spraying the composition, a method of mixing them (including a immersion method), and the like.

Prior to contact between the composition and the fibers, the fibers may optionally be subjected to pretreatment for the purpose of removing oil or dirt from the surface of the fibers. By performing the pretreatment, the fiber surface can be cleaned, and thereby the fiber surface can be easily wetted uniformly with the composition.

In addition, the method of pretreatment is not particularly limited, and methods such as hot water washing, solvent washing, degreasing washing and the like are exemplified.

The contact temperature and contact time of the composition to the fiber are not particularly limited as long as the composition can be uniformly brought into contact with the surface of the fiber, and are appropriately optimal conditions depending on the type or shape of the fiber, the type of solvent or component in the composition used, and the like. is selected

The contact temperature may be, for example, 10 to 40°C.

The contact time may be, for example, from 0.1 second to 10 minutes.

After the contact and before the drying, the fiber may optionally be subjected to an intermediate treatment. The intermediate treatment is not particularly limited, and washing is exemplified. The washing method is not particularly limited, and examples thereof include methods such as hot water washing and solvent washing.

The drying temperature, drying method, and drying time of the solvent, etc. are not particularly limited as long as the solvent or the like is volatilized to form a film containing the acrylic polymer, and the type or shape of the fiber, the solvent or component in the composition used Optimum conditions are appropriately selected according to the type of

Examples of the drying method include natural drying, air drying, heat drying, reduced pressure drying, freeze drying, and any combination thereof.

As a heating method, hot air, an induction heater, infrared rays, near-infrared rays, etc. are mentioned, for example.

The drying temperature may be, for example, 25 to 250°C.

The drying time may be, for example, 1 second to 1 hour.

Example

Hereinafter, the present invention will be described in more detail with reference to specific examples, but these examples do not limit the technical scope of the present invention at all. Those skilled in the art can appropriately adjust the formulation according to required durability, curling force, and other conditions. In addition, all the compounding quantities (content) in the following Examples and Comparative Examples are % by mass.

Prescription

Each component of Table 2 was mixed with water to prepare a surface treatment agent. In each surface treatment agent, a nylon fiber (hereinafter referred to as fiber) was immersed for 5 to 10 minutes. After that, the fiber was taken out and the surface of the fiber was sufficiently dried in an oven. Cosmetics were prepared using surface-treated or untreated fibers and raw materials shown in Table 1. The ratios shown in Table 2 represent the mass% of each component with respect to the total amount of all components contained in the film formed on the fiber surface.

evaluation

The cosmetics of each Example or Comparative Example, or the fibers used in each Example were evaluated by the following method.

adhesiveness

Using eyelash cosmetics, a sensory evaluation of adhesiveness (easiness of fiber attachment to eyelashes) was judged on a scale of 1 (very bad) to 5 (very good) by 5 panelists, and the average value was evaluated based on the following criteria. did The results are shown in Table 3.

◎: 4.0 or more

○: 3.0 or more and less than 4.0

△: 2.0 or more and less than 3.0

×: less than 2.0

As is evident from Table 3, it was demonstrated that the eye makeup cosmetic of the present invention is particularly excellent in fiber adhesion.

adhesion uniformity

Using eyelash cosmetics, five panelists judged the sensory evaluation of adhesion uniformity (whether it adhered without bias along the flow of hair) on a scale of 1 (very bad) to 5 (very good), and the average value was determined as follows. Evaluated based on The results are shown in Table 4.

○: 3.5 or more

△: 2.0 or more and less than 3.5

×: less than 2.0

dispersibility of fibers

0.1 g of fiber was dispersed in each of 20 ml of water and isododecane, and the degree of dispersion was judged on a scale of 1 (very bad) to 5 (very good) by 5 panelists, and the average value was evaluated according to the following criteria. The results are shown in Table 4.

◎: 4.5 or more

○: 3.0 or more and less than 4.5

△: 2.0 or more and less than 3.0

×: less than 2.0

long lash effect

Artificial eyelashes (Girls Secret 01, Publisher: Elizabeth Co., Ltd.) were prepared, and the artificial eyelashes were photographed using a digital microscope (VHX-7000, Keyence Co., Ltd.). Subsequently, the eyelash cosmetic composition of Example 6 was applied to the artificial eyelashes 30 times. After drying for 5 minutes, it was applied 30 times again and completely dried. In the same way as before application, the artificial eyelashes after application were photographed. Six locations were randomly selected from the artificial eyelashes, and hair lengths before and after application were measured using a digital microscope. After that, the eyelash cosmetic was removed, the same measurement was performed twice (three times in total), the average value of the hair length before application and after application was obtained, and the elongation value was obtained. Similarly, for the eyelash cosmetic of Comparative Example 1, the average value of the difference in hair length before application and after application was obtained. Table 5 shows the measurement results.

Claims (3)

An eye makeup cosmetic comprising fibers having a film containing an acrylic polymer on the surface thereof, wherein the fiber has a thickness of 1 to 13 denier and a length of 0.2 to 6 mm. The eye makeup cosmetic according to claim 1, wherein the film contains a hydrophobic silicone compound. The eye makeup cosmetic according to claim 1 or 2, wherein the film contains a hydrophobic (meth)acrylic acid ester (co)polymer and a hydrophilic (meth)acrylic acid ester (co)polymer as the acrylic polymer.