JP4657755B2 - Powder spray cosmetics - Google Patents

Description

  The present invention relates to a powder spray cosmetic containing a crosslinked resin powder having specific rubber elasticity.

  Cosmetics containing powder include makeup cosmetics such as foundation, white powder, blusher, eye shadow, body cosmetics such as body powder, baby powder, body lotion, face lotion, pre-shave lotion, etc. Lotion preparations are commercially available. In these body cosmetics and lotion preparations, the powder is used for the purpose of imparting functions such as improvement on skin, improvement in touch, and hiding effect. Examples thereof include inorganic powders such as silica and talc, and resin powders composed of polymethyl methacrylate, crosslinked polystyrene, nylon, polyethylene, and the like. However, these powder materials have characteristics corresponding to their types, but are insufficient in that they provide a soft feel and a smooth feel.

Patent Documents 1 to 3 disclose external preparations containing crosslinked (meth) acrylate resin particles having a compressive strength of 0.05 to 0.6 kgf / mm ² . Such particles have good elongation and feel, but are not yet satisfactory, and there is a need for particles that have even better feel such as elongation, smoothness, and soft feeling.
JP 2000-186017 A JP 2000-302624 A JP 2002-265529 A

  In powder spray cosmetics containing inorganic powders such as silica and talc, and resin powders, when applied to the skin, the skin feels slippery depending on the powder, but there is a peculiar feel to the powder. The rest was not a natural skin feel. By applying these powders, the stickiness of sweat could be solved to some extent, but when the skin condition was bad or when it was dry, such as winter, it was a disliked feeling. In particular, when an antiperspirant was added, the crispness became stronger and it was not preferred.

  Accordingly, an object of the present invention is to provide a powder spray cosmetic that can impart a smooth feeling without being soft, while maintaining a smooth feeling on the skin, and further excellent in the smooth feeling of the skin and the sustainability of the smoothness. Is to provide.

The present invention provides a powder spray cosmetic containing a crosslinked (meth) acrylate resin powder having a compressive strength of 0.7 to 10 kgf / mm ² .

  The powder spray cosmetic of the present invention can impart a smooth feel without sagging while ensuring a smooth feeling to the skin, and is excellent in the smooth feeling of the skin and the sustainability of the smoothness.

  Powder spray cosmetics are aerosol-type spray products mainly composed of powder components, and the powder components are applied onto the skin by spraying the liquid content with a propellant, and the spray site has a dry feeling, a refreshing feeling, A feeling such as smoothness can be given. Powder spray cosmetics are generally excellent in the expression of dryness compared to gel-like or milky cosmetics containing a powder component.

[Crosslinked (meth) acrylic ester resin powder]
The crosslinked (meth) acrylic acid ester resin powder used in the present invention has a compressive strength of 0.7 to 10 kgf / mm ² , particularly ² to 8 kgf / mm, from the viewpoint of obtaining a sufficient smooth feeling and smoothness. ² is preferred.

  Here, the compression strength is the following formula based on the load and particle diameter when the resin particle is subjected to a compression test with a microcompression tester MCT-M200 manufactured by Shimadzu Corporation. Is a value calculated by. The compressive strength is measured at 25 ° C.

Compressive strength (kgf / mm ² ) = 2.8 × load (kgf) / {π × particle diameter (mm) × particle diameter (mm)}
The compressive strength of the resin particles can be adjusted as appropriate by controlling the types and blending amounts of the monomer and the crosslinking agent constituting the resin particles.

The crosslinked (meth) acrylic acid ester resin powder used in the present invention includes at least one monomer selected from acrylic acid ester and methacrylic acid ester (hereinafter referred to as (meth) acrylic acid ester monomer) and Cross-linked (meth) acrylic ester resin powder obtained by copolymerizing a monomer component containing a monomer having a carboxyl group is preferable.
In the present specification, “(meth) acryl” is a concept including both acrylic and methacrylic.

  The (meth) acrylic acid ester monomer used in the present invention is preferably a (meth) acrylic acid alkyl ester having 1 to 18 carbon atoms in the alkyl group. Specifically, methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, lauryl (meth) acrylate , Stearyl (meth) acrylate and the like. Among these, alkyl (meth) acrylates having 4 to 18 carbon atoms in the alkyl group such as butyl (meth) acrylate, lauryl (meth) acrylate, and stearyl (meth) acrylate are particularly preferable. You may use these in combination of multiple types. The proportion of the (meth) acrylic acid ester monomer in all monomer components (including a crosslinkable monomer described later) is preferably 30 to 98% by mass, more preferably 50 to 85% by mass. .

  Examples of the monomer having a carboxyl group used in the present invention include (meth) acrylic acid, maleic acid, fumaric acid, crotonic acid, and itaconic acid. You may use these in combination of multiple types. The ratio of the monomer having a carboxyl group in all the monomer components is 0.1 to 30 from the viewpoint of suppressing powder coalescence and obtaining a good powder feel (smoothness, smooth feeling). % By mass is preferable, and 1 to 10% by mass is more preferable.

  A part of the carboxyl groups contained in the crosslinked (meth) acrylic acid ester resin powder may be neutralized. The base for neutralization is preferably an inorganic base such as sodium hydroxide, potassium hydroxide or ammonia, but organic bases such as amines, alkanolamines and basic amino acids can also be used. From the viewpoint of further improving the smoothness and smoothness of the powder, the degree of neutralization is preferably 1 to 30%, particularly preferably 1 to 20%. Here, the degree of neutralization represents the ratio of the number of moles of the added base to the number of moles of the carboxyl group of the monomer having a carboxyl group, expressed as a percentage.

  The monomer component preferably contains a crosslinkable monomer having two or more vinyl groups as a crosslinking agent. Examples of such crosslinkable monomers include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, decaethylene glycol di (meth) acrylate, pentadecaethylene glycol di ( (Meth) acrylate, 1,3-butylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, glycerin di (meth) acrylate, (meth) Allyl acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, diethylene glycol di (meth) acrylate phthalate, caprolactone-modified dipentaerythritol hexa (meth) Acrylate, caprolactone-modified hydroxypivalate ester neopentyl glycol di (meth) acrylate, polyester (meth) acrylate, urethane (meth) acrylate and other (meth) acrylate crosslinkable monomers, divinylbenzene, divinylnaphthalene and these And aromatic divinyl monomers such as derivatives thereof. These may be used alone or in combination of two or more. Among these crosslinkable monomers, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, 1,3-butylene glycol di (meth) acrylate, 1,4- (Poly) alkylene glycol di (meth) acrylate such as butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, caprolactone-modified dipentaerythritol hexa (meth) acrylate, caprolactone-modified hydroxypivalic acid ester Neo Pentyl glycol di (meth) acrylate and polyester (meth) acrylate are particularly suitable for use as powder spray cosmetics because of their low skin irritation. These crosslinkable monomers are preferably used in an amount of 3 to 50% by mass relative to the total monomer components.

  As a monomer component, in addition to the above (meth) acrylic acid ester monomer, a monomer having a carboxyl group and a crosslinkable monomer, other monomers copolymerizable with these may be copolymerized. Good. Examples of other monomers include styrene, (meth) acrylonitrile, (meth) acrylamide, vinyl acetate, vinyl pyrrolidone and the like.

  Crosslinked (meth) acrylic acid ester resin powder is, for example, a monomer component containing the above (meth) acrylic acid ester monomer, a monomer having a carboxyl group and a crosslinkable monomer, It can be obtained by polymerization by aqueous suspension polymerization, emulsion polymerization, seed polymerization, dispersion polymerization or the like using a polymerization initiator or the like. Of these, the aqueous suspension polymerization method is preferred from the viewpoint that it is easy to obtain spherical and uniform resin powder.

  Aqueous suspension polymerization is performed by mixing an oil phase containing a monomer and an aqueous phase, and then raising the temperature while stirring. At this time, a surfactant is used as a dispersant. The amount of the surfactant used is preferably 0.01 to 50 parts by mass, more preferably 0.01 to 10 parts by mass, and particularly preferably 0.1 to 5 parts by mass with respect to 100 parts by mass of all monomer components. preferable.

  Here, as the surfactant, those having a sulfonic acid (salt) group are preferable. Thereby, it is possible to obtain a more smooth and smooth resin powder.

  Examples of the surfactant having a sulfonic acid (salt) group include those described in paragraph Nos. 0032 to 0036 of JP-A No. 2003-146826. Among them, an alkyl or alkenyl ether sulfonic acid or a salt thereof, which has an alkyl group or alkenyl group having 5 to 30 carbon atoms and may have an average of 0.5 to 25 moles of alkylene oxide added in one molecule, and carbon An acylated taurine having an alkyl group or an alkenyl group of 5 to 30 or a salt thereof is preferred, and an acylated taurine (salt) represented by the following general formula (I) is particularly preferred.

R ¹ CONR ² CH ₂ CH ₂ SO ₃ M (I)
[Wherein, R ¹ represents an optionally substituted alkyl group or alkenyl group having 5 to 30 carbon atoms, R ² represents a hydrogen atom or a methyl group, and M represents a hydrogen atom or a cation. ]
In general formula (I), as R < ¹ >, a C6-C24 alkyl group or alkenyl group is preferable. Specific examples include hexyl, octyl, nonyl, decyl, undecyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl, docosyl, tetracosyl, decenyl, dodecenyl, tetradecenyl, hexadecenyl, octadecenyl, eicosenyl and the like. Examples of the substituent for the alkyl group or alkenyl group include a hydroxyl group, a carboxyl group, an ester group, an ether group, and an amide group.

  Examples of the cation represented by M include cations such as alkali metal, ammonium, alkyl or alkenylamine having 1 to 22 carbon atoms, alkanolamine having 1 to 22 carbon atoms, basic amino acid salt, lithium, sodium, Alkali metal ions such as potassium are preferred, and sodium ions are particularly preferred.

Examples of the polymerization initiator used for polymerization include benzoyl peroxide, lauroyl peroxide, octanoyl peroxide, benzoyl peroxide, methyl ethyl ketone peroxide, diisopropyl peroxydicarbonate, cumene hydroperoxide, t-butyl hydroperoxide and the like. And oil-soluble azo compounds such as 2,2′-azobisisobutyronitrile and 2,2′-azobis (2,4-dimethylvaleronitrile). The addition amount of the polymerization initiator is preferably 0.1 to 10% by mass with respect to all monomer components.
The polymerization temperature and the polymerization time are not particularly limited, but the polymerization temperature is preferably 40 to 100 ° C. and the polymerization time is preferably 1 to 15 hours.

  The shape of the resin powder of the present invention is preferably a spherical body because it feels good on the skin. The average particle size is preferably 1 μm or more, more preferably 1.5 μm or more, and particularly preferably 2 μm or more from the viewpoint of reducing squeakiness. On the other hand, from the viewpoint of suppressing roughness and further improving the skin fixing property, it is preferably 10 μm or less, more preferably 8 μm or less, and particularly preferably 6 μm or less.

  The average particle size was measured using a laser diffraction type particle size distribution measuring device (for example, LA-920 manufactured by Horiba, Ltd.), and the weight average particle size of a water suspension of powder at 20 ° C. with a relative refractive index of 1.1. It can be determined by measuring the diameter.

[Powder spray cosmetic]
The powder spray cosmetic of the present invention is characterized by containing the above-mentioned crosslinked (meth) acrylic ester resin powder.

  The content of the crosslinked (meth) acrylic acid ester resin powder in the powder spray cosmetic of the present invention is in the total amount of the powder spray containing the propellant from the viewpoint of giving a good dry feeling to the skin and not whitening the skin. 0.05 to 25 mass% is preferable, 0.1 to 20 mass% is more preferable, and 0.5 to 15 mass% is particularly preferable.

  The powder spray cosmetic of the present invention can contain an oil agent if necessary. Examples of the oil agent include silicone oils, hydrocarbons, ester oils, aliphatic alcohols, ether oils and branched fatty acids.

  Silicone oils include dimethylpolysiloxane, diethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, dimethylsiloxane / methylstearoxysiloxane copolymer, dimethylsiloxane / methylcetyloxysiloxane copolymer, and cyclic polydimethylsiloxane. , Cyclic polymethylphenylsiloxane, cyclic polymethylhydrogensiloxane, fatty acid modified polysiloxane, higher alcohol modified polysiloxane, amino modified polysiloxane, epoxy modified polysiloxane, polyoxyethylene methylpolysiloxane, dimethylsiloxane methyl (polyoxy Ethylene / polyoxypropylene) siloxane copolymer, dimethylsiloxane / methyl (polyoxypropylene) siloxane copolymer Polyoxyalkylene-modified polysiloxane etc., alkoxy-modified polysiloxanes include long-chain alkyl-modified polysiloxanes.

  Examples of hydrocarbons include squalane, petrolatum, liquid paraffin, and the like. Ester oils include neopentyl glycol dicaprate, hexyl laurate, isopropyl myristate, myristyl myristate, cetyl myristate, 2-octyldodecyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, butyl stearate, oleic acid Decyl, 2-octyldodecyl oleate, myristyl lactate, cetyl lactate, lanolin, lanolin acetate, avocado oil, almond oil, olive oil, cocoa butter, jojoba oil, sesame oil, safflower oil, soybean oil, camellia oil, corn oil, wheat Germ oil, peanut oil, turtle oil, persic oil, castor oil, mink oil, cottonseed oil, coconut oil, egg yolk oil, polypropylene glycol monooleate, neopentyl glycol-2-ethylhexanoate, isostearic Acid triglyceride, and diglycerides myristate isostearate, and the like.

  Examples of aliphatic alcohols include stearyl alcohol, cetostearyl alcohol, and oleyl alcohol. Examples of ether oils include polyoxyethylene lauryl ether and polyoxypropylene cetyl ether. Examples of branched fatty acids include isostearic acid.

  The content of the oil agent in the powder spray cosmetic of the present invention is preferably 0.001 to 30% by mass, and 0.01 to 20% by mass in the total amount of the powder spray including the propellant, from the viewpoint of giving an appropriate oily feeling. Is more preferable, and 0.01 to 10% by mass is particularly preferable.

  The powder spray cosmetic of the present invention preferably contains an antiperspirant substance. As the antiperspirant substance, any substance that has been conventionally considered to have an antiperspirant action can be used. For example, aluminum or zirconium astringency such as aluminum halide, aluminum hydroxyhalide, zirconium oxyhalide, zirconium hydroxyhalide, etc. A salt or a convergent complex thereof can be used alone or in combination.

  The content of the antiperspirant substance in the powder spray cosmetic of the present invention is 0.1 to 25% by mass in the total amount of the powder spray including the propellant from the viewpoint of giving good antiperspirant action and not whitening the skin. Preferably, 0.2-10 mass% is still more preferable.

  Moreover, it is preferable that the powder spray cosmetic of this invention contains a disinfectant. Examples of the disinfectant include 3,4,4-trichlorocarbanilide, triclosan, benzalkonium chloride, benzethonium chloride, alkyltrimethylammonium chloride, resorcin, phenol, sorbic acid, salicylic acid, hexachlorophene, isopropylmethylphenol and the like.

  The content of the bactericidal agent in the powder spray cosmetic of the present invention is preferably 0.001 to 2% by mass, and 0.05 to 1% by mass in the total amount of the powder spray including the propellant from the viewpoint of a good bactericidal effect. Is more preferable.

  The powder spray cosmetic of the present invention may further contain alcohols such as ethanol, propylene glycol, 1,3-butanediol, glycerin, sorbitol, and polyethylene glycol. In addition, a surfactant, a moisturizer, an antiperspirant, a bactericidal agent, an anti-inflammatory agent, a whitening agent, a UV care agent, an antioxidant, a refreshing agent, a fragrance and the like are blended within a range not impairing the effects of the present invention. You can also.

  The powder spray cosmetic of the present invention is obtained by filling each of the above components and a suitable propellant in a sealed container equipped with an aerosol valve. The propellant used in the present invention may be anything as long as it is usually used as an aerosol propellant, but liquefied petroleum gas such as propane, butane, isopentane, etc .; dichlorofluoromethane, 1,2-dichloro-1,1 , 2,2-tetrafluoroethane, halogenated hydrocarbons such as trichloromonofluoromethane; liquefied gas such as dimethyl ether; compressed gas such as carbon dioxide and nitrogen gas. As for the compounding quantity of a propellant, 45-98 mass% is preferable in the powder spray cosmetics whole quantity of this invention.

  The powder spray cosmetic of the present invention can leave the active ingredient on the skin for a long time by, for example, spraying on the skin, and it has a smooth feeling, a continuous smooth feeling, an antiperspirant / deodorant effect, etc. I can expect.

  Unless otherwise specified,% in the examples is% by mass.

Production Example 1
In a beaker, 85 g of lauryl methacrylate, 15 g of ethylene glycol dimethacrylate, and 2 g of lauroyl peroxide were charged, mixed and stirred to dissolve. Here N- stearoyl -N- methyl taurate sodium (SMT) was added to ion-exchanged water 400g obtained by 0.75g dissolved, the particle size with a homomixer was dispersed until the 2.4 [mu] m.

  The dispersion was poured into a four-necked flask and purged with nitrogen for 30 minutes while stirring. The temperature inside the flask was heated to 80 ° C. with an oil bath. After reaching 80 ° C., polymerization was performed for 5 hours, and then cooled to room temperature. The dispersion liquid of the polymerized particles was lyophilized and the particles were collected to obtain a resin powder A.

Production Example 2
A beaker was charged with 82 g of lauryl methacrylate, 3 g of methacrylic acid, 15 g of ethylene glycol dimethacrylate, and 2 g of lauroyl peroxide, and dissolved by stirring. To this, 400 g of ion-exchanged water in which 0.75 g of sodium dodecyl sulfate (SDS) was dissolved was added and dispersed with a homomixer until the particle size became 2.5 μm.

  The dispersion was poured into a four-necked flask and purged with nitrogen for 30 minutes while stirring. The temperature inside the flask was heated to 80 ° C. with an oil bath. After reaching 80 ° C., polymerization was performed for 5 hours, and then cooled to room temperature. The dispersion liquid of the polymerized particles was lyophilized and the particles were collected to obtain a resin powder B.

Production Example 3
A beaker was charged with 82 g of lauryl methacrylate, 3 g of methacrylic acid, 15 g of ethylene glycol dimethacrylate, and 2 g of lauroyl peroxide, and dissolved by stirring. 400 g of ion-exchanged water in which 0.75 g of sodium N-stearoyl-N-methyltaurine (SMT) was dissolved was added thereto and dispersed with a homomixer until the particle size became 2.2 μm.

  The dispersion was poured into a four-necked flask and purged with nitrogen for 30 minutes while stirring. The temperature inside the flask was heated to 80 ° C. with an oil bath. After reaching 80 ° C., polymerization was performed for 5 hours, and then cooled to room temperature. The dispersion liquid of the polymerized particles was lyophilized and the particles were collected to obtain resin powder C.

Production Example 4
In Production Example 3, a neutralized product of Resin Powder C was obtained in the same manner as in Production Example 3 except that 3.9 g of 1N NaOH was added dropwise to the dispersion of polymerized particles for neutralization. The neutralized product of the resin powder C had a carboxyl group neutralization degree of 11.2%.

  When the compressive strength and average particle size of the resin powders A, B, C, and C obtained in Production Examples 1 to 4 were measured by the following methods, the results shown in Table 1 were obtained.

<Compressive strength measurement method>
The resin particle is subjected to a compression test up to a load of 1 gf at a constant load speed of 29 mgf / s using a micro compression tester MCT-M200 manufactured by Shimadzu Corporation. From the following formula. Ten samples were measured, and the average value was taken as the compressive strength.

Compressive strength (kgf / mm ² ) = 2.8 × load (kgf) / {π × particle diameter (mm) × particle diameter (mm)}.

<Average particle size measurement method>
Using a Horiba, Ltd. laser diffraction scattering particle size distribution analyzer (model number: LA920), the relative refractive index is 1.10 (the refractive index of the resin powder is 1.46, the refractive index of water is 1). .33), the median diameter when the particle diameter was measured was defined as the average particle diameter.

Examples 1-4 and Comparative Examples 1-2
Powder spray cosmetics having the composition shown in Table 2 were prepared, and five professional panelists sprayed the cosmetics on the forearms, and the following evaluation items for the feeling of use were scored as follows. The average score was ranked according to the following criteria. The results are shown in Table 2.

<Evaluation items>
・ Smooth feeling Score 4 ... Sleeping score 3 ... Slightly scoring Score 2 ... Slightly not scoring Score 1 ... Non-smoothing / Smallness score 4 ... Non-scoring Score 3 ... Slightly not scoring Score 2 ... Slightly scoring Score 1… Duration and persistence (1 hour after application)
Score 4 ... Smooth feeling persists Score 3 ... Smooth feeling slightly persists Score 2 ... Smooth feeling does not last much Score 1 ... Smooth feeling does not persist <Criteria>
Average score 3.5-4.0 ... ◎
Average score 2.5-3.4 ... ○
Average score 1.5-2.4 ... △
Average score 1.0-1.4 ... ×

* 1: Methylsiloxane network polymer powder (manufactured by Shin-Etsu Chemical Co., Ltd., compressive strength 12 kgf / mm ² , average particle size 2 μm)
* 2: Decamethylcyclopentasiloxane (manufactured by Dow Corning Toray).

Example 5
A powder spray cosmetic having the following composition was prepared. The obtained powder spray cosmetic was free-flowing and not bulky, and the dry-feel was maintained even after 1 hour of application.

<Composition>
Resin powder A 3.50%
Neopentyl glycol dicaprate 3.00
Dimethyl silicone (10cs) 0.10
KF-6015 ^{* 1} 0.05
Polyoxyethylene hydrogenated castor oil ^{* 2} 0.30
Antiperspirant (ROCRON P ^{* 3} ) 2.00
Isopropylmethylphenol 0.02
Fragrance 0.50
Decamethylcyclopentasiloxane 0.53
Propellant (LPG 0.15 MPa ) 90.00
Total 100.00
* 1: Polyoxyethylene / methylpolysiloxane copolymer manufactured by Shin-Etsu Chemical Co., Ltd.
* 2: Emanon CH-40 manufactured by Kao Corporation
* 3: Aluminum hydroxychloride.

Example 6
A powder spray cosmetic having the following composition was prepared. The obtained powder spray cosmetic was free-flowing and not bulky, and the dry-feel was maintained even after 1 hour of application.

<Composition>
Neutralized product of resin powder C 2.00%
Isopropyl palmitate 3.00
Oleic acid 0.10
Oat extract 0.10
Dibutylhydroxytoluene 0.02
Perfume 0.03
SH3775M ^{* 1} 0.10
Triclosan 0.02
Octamethylcyclotetrasiloxane 4.63
Isopentane 10.00
Propellant (LPG 0.25 MPa ) 80.00
Total 100.00
* 1: Polyoxyethylene / methylpolysiloxane copolymer Toray Dow Corning Silicone Co., Ltd.

Example 7
A powder spray cosmetic having the following composition was prepared. The obtained powder spray cosmetic was free-flowing and not bulky, and the dry-feel was maintained even after 1 hour of application.

<Composition>
Neutralized product of resin powder C 1.70%
Antiperspirant (ROCRON P ^{* 1} ) 1.00
Isopropyl myristate 1.62
Dimethyl silicone (10cs) 0.10
Talc 0.20
SH3775M ^{* 2} 0.30
Fragrance 0.05
Dibutylhydroxytoluene 0.02
Triclosan 0.01
Propellant (LPG 0.20 MPa ) 95.00
Total 100.00
* 1: Aluminum hydroxychloride
* 2: Polyoxyethylene / methylpolysiloxane copolymer Toray Dow Corning Silicone Co., Ltd.

Claims (3)

A powder spray cosmetic containing a crosslinked (meth) acrylate resin powder having a compressive strength of 0.7 to 10 kgf / mm ² ;
The crosslinked (meth) acrylic acid ester resin powder is obtained by copolymerizing a monomer component containing at least one monomer selected from acrylic acid ester and methacrylic acid ester and a monomer having a carboxyl group. Powder spray cosmetics . Powder spray cosmetic of claim 1, wherein the degree of neutralization of the carboxyl groups in the resin powder is 1 to 30%. The powder spray cosmetic according to claim 1 or 2 , wherein the average particle size of the resin powder is 1 to 10 µm.