JP2001328931A - Water-in-oil type sun-screening cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a water-in-oil type sun-screening cosmetic having excellent spreadability and smoothness on the skin during application, a cosmetic film with gloss, slight secondary adhesion to clothing, etc., of cosmetic, sustaining a make-up effect for many hours, having high stability. SOLUTION: This water-in-oil type sun-screening cosmetic is characterized by comprising (A) 5-40 mass % an organic compound having an ultraviolet light preventing effect and/or an inorganic compound having an ultraviolet light preventing effect, (B) 10-60 mass % of a volatile silicone oil, (C) 0.1-5 mass % of an acryl-silicone-based graft copolymer, (D) 0.1-5 mass % of a polyoxyalkylene modified organopolysiloxane-based surfactant, (E) 0.1-5 mass % of brilliant powder and (F) 2-60 mass % of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-in-oil type sun-cut cosmetic composition, and more particularly, it has good smoothness on the skin when applied, has a glossy cosmetic film, and is suitable for use in cosmetics. The present invention relates to a highly stable water-in-oil type sun-cut cosmetic which has a small amount of secondary adhesion and a long-lasting cosmetic effect.

[0002]

2. Description of the Related Art Conventionally, sun-cut cosmetics contain an organic UV absorber, a powder having a UV-shielding effect such as titanium oxide and zinc oxide, etc., and protect the skin from sunlight, especially ultraviolet rays. Those having an effect of reducing skin damage due to ultraviolet rays or the like and preventing sunburn are generally used. In particular, a water-in-oil type suncut cosmetic in which the oil phase is an external continuous phase as a dosage form and the aqueous phase is an internal discontinuous phase is excellent in water resistance because the coating film is formed of a continuous oil film, It has usefulness such as hardly causing makeup collapse. Also,
Recently, a type that imparts glossiness to the skin by adding glitter powder or the like to suncut cosmetics has also been developed.

[0003]

However, since the glittering powder has a relatively large particle size, it is difficult to obtain adhesion to the skin, and the glittering powder may peel off with time after application.
In addition, secondary contact with clothes etc. due to contact,
It was difficult to maintain the makeup effect.

[0004]

In view of the above circumstances, the present inventors have made intensive studies to solve the above-mentioned problems, and as a result, have found that organic and / or inorganic compounds having an ultraviolet protection effect, volatile silicone oil, acrylic -Using a silicone-based graft copolymer, a polyoxyalkylene-modified organopolysiloxane-based surfactant and a glitter powder in a specific amount in combination, and emulsifying, dispersing, etc. to form a water-in-oil dosage form, A stable water-in-oil type suncut cosmetic that is smooth and stretches well when applied to the skin, has a glossy makeup film, has little secondary adhesion to the clothing of the makeup film, and has a long-lasting makeup effect. Finding what you can get,
The present invention has been completed.

That is, the present invention provides the following components (A) to
It is a water-in-oil type sun cut cosmetic characterized by containing (F). (A) Organic compound having ultraviolet protection effect and / or inorganic compound having ultraviolet protection effect 5 to 40% by mass (B) Volatile silicone oil 10 to 60% by mass (C) Acrylic-silicone-based graft copolymer
1 to 5% by mass (D) Polyoxyalkylene-modified organopolysiloxane-based surfactant 0.1 to 5% by mass (E) Brilliant powder 0.1 to 5% by mass (F) Water 2 to 60% by mass

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
Among the components (A) used in the present invention, among the organic compounds having an ultraviolet protection effect and / or the inorganic compounds having an ultraviolet protection effect, the former is an organic compound and is particularly limited as long as it has an ultraviolet protection effect. However, organic UV absorbers are preferred because of their high effect. Specifically, benzophenone ultraviolet absorbers such as oxybenzone (2-hydroxy-4-methoxybenzophenone) and oxybenzonesulfonic acid, and paraaminobenzoic acid such as octyl paradimethylaminobenzoate, amyl paradimethylaminobenzoate, and ethyl paraaminobenzoate. UV absorbers, cinnamate UV absorbers such as octyl paramethoxycinnamate, salicylic acid UV absorbers such as octyl salicylate and menthyl salicylate, dicarboxylic acids such as 4-tert-butyl-4'-methoxydibenzoylmethane Benzoylmethane-based ultraviolet absorbers and the like can be exemplified as preferable ones. Of these, oxybenzone, octyl paradimethylaminobenzoate, octyl paramethoxycinnamate, and 4-tert-butyl-4'-methoxydibenzoylmethane are particularly preferred.

The latter component (A) is not particularly limited as long as it is an inorganic compound and has an ultraviolet protection effect. However, inorganic powders such as titanium oxide, zinc oxide, cerium oxide and zirconium oxide can be used. The body is highly effective and is preferred. In particular, when the particle diameter is 100
Fine particle powder having a particle size of not more than μm is particularly preferable in cosmetics because it has a high ultraviolet ray protection effect and high transparency.

In the present invention, component (A), an organic compound having an ultraviolet protection effect and / or an inorganic compound having an ultraviolet protection effect, may be used alone or in combination of two or more. 5-40% by mass
(Hereinafter simply referred to as “%”), and more preferably 15 to 30%. If the amount is less than 5%, a sufficient suncut effect cannot be obtained. In addition, even if the content exceeds 40%, further improvement of the suncut effect is not easily obtained, and also the usability (ease of use as a cosmetic) tends to be deteriorated, which is favorable as a suncut cosmetic. Quality is difficult to obtain.

The component (B) volatile silicone oil used in the present invention is a cyclic or linear dimethylpolysiloxane having a high volatilization rate at room temperature, and is used as a solvent for the silicone component in the oil phase. And volatilizes after application while giving the skin at the time of application a refreshing feel as a suncut cosmetic, and has the effect of strongly attaching other components to the skin. In the present invention,
As the cyclic dimethylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and the like are preferably used, and as the linear dimethylpolysiloxane, those having a viscosity at 25 ° C. of 5 mm ² / s (5 cs) or less are preferable. Used for

In the present invention, the component (B) volatile silicone oil may be used alone or in combination of two or more, and the compounding amount thereof is 10 to 60% of the total composition, more preferably 15 to 60%. 50%. If the compounding amount is less than 10%, the viscosity of the entire system becomes high, and the refreshing feeling of use as a suncut cosmetic becomes insufficient. Also, 6
If the amount is more than 0%, it tends to be difficult to apply the composition without unevenness on the skin, and it is difficult to obtain good quality as a suncut cosmetic.

[0011] The component (C) used in the present invention is acrylic.
The silicone-based graft copolymer is a graft copolymer having an acrylic moiety and a silicone moiety, one of which forms a main chain and the other is a side chain, and has a silicone-based property. It is. In the present invention,
As the component (C) acryl-silicone graft copolymer, those having a specific organopolysiloxane as a side chain described in JP-A-2-25411 or the like are particularly preferable. ), A dimethylpolysiloxane compound (a) having a radical polymerizable group at one end of a molecular chain and a radical polymerizable monomer (b) mainly composed of acrylate and / or methacrylate by radical copolymerization. It is what is synthesized.

[0012]

Embedded image

Wherein R ¹ is a methyl group or a hydrogen atom, and R ² is a carbon atom having a linear or branched carbon chain optionally interrupted by one or two ether bonds. Represents from 10 to 10 divalent saturated hydrocarbon groups. R
² is _{specifically, -CH 2 -, - (CH} 2) 3 -, -
_{(CH 2) 6 -, -} (CH 2) 8 -, - (CH 2) 10
_{-, - CH 2 -CH (CH} 3) -CH 2 -, - (C
_{H 2) 2 O (CH 2} ) 3 -, - (CH 2) 2 OCH 2 C
_{H (CH 3) CH 2 -} , - (CH 2 CH 2 O) 2 (CH
₂ ) _3- and the like. q shows the number of 3-300. ]

On the other hand, the radically polymerizable monomer mainly composed of acrylate and / or methacrylate (b) means a compound having one radically polymerizable unsaturated bond in a molecule, and is used as acrylate and / or methacrylate. Is methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth)
Hydroxyalkyl (meth) such as acrylate, alkyl (meth) acrylate such as 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, and 2-hydroxypropyl (meth) acrylate
Acrylates and perfluoroalkyl (meth) acrylates having 1 to 10 fluorocarbon chains can be exemplified.

In the radically polymerizable monomer of the present invention, various compounds other than the above-mentioned acrylate and / or methacrylate can be used as needed. These polymerizable monomers include styrene, substituted styrene, vinyl acetate, (meth) acrylic acid,
Maleic anhydride, maleic ester, fumaric ester, vinyl chloride, vinylidene chloride, ethylene, propylene, butadiene, acrylonitrile, fluorinated olefin and the like can be exemplified.

In the present invention, the acrylic component (C)
One or more silicone-based graft copolymers having different structures or the like can be used in combination, and the blending amount is 0.1 to 5% of the total composition. If the amount is less than 0.1%, sufficient persistence of the cosmetic effect cannot be obtained, and
When the content is more than 5%, the film feeling on the skin becomes strong, and it becomes difficult to obtain good quality as a cosmetic for skin.

In the present invention, the acrylic component (C)
Silicone KP-
540, and a solution thereof, silicon KP-54
1. Commercial products such as Silicon KP-545 (all manufactured by Shin-Etsu Chemical Co., Ltd.) can be used.

The polyoxyalkylene-modified organopolysiloxane-based surfactant of the component (D) used in the present invention (hereinafter simply referred to as "POA-modified silicone")
Is a silicone derivative having a surface active ability having a polyoxyalkylene group, and by using this,
A stable emulsion or dispersion can be obtained from a hydrophobic silicone or an oil phase containing the same and an aqueous phase. In the present invention, a POA-modified silicone represented by the following general formula (2) or (3) is particularly preferred.

[0019]

Embedded image

[Where G is¹And G²Are the same but different
May be CH₃Or (CH₂)_pO (C₂H₄
0)_m(C₃H₆0)_nR³ (P = 1 to 5, m = 1 to
50, n = 0 to 30;³Is hydrogen field
X or an alkyl group having 1 to 5 carbon atoms);
Is (CH₂)_p0 (C₂H₄0)_m(C₃H₆0)_nR
³ (P, m, n and R³Has the same meaning as above
) And a = 5 to 300 and b = 0 to 50
Shown respectively. Where G¹And G²Are both CH₃In
Excluding the case where b = 0. ]

[0021]

Embedded image

[Wherein G ¹ , G ² and X have the same meanings as above, a = 1 to 30, b = 0 to 50, c = 5 to 3]
And R ⁴ represents an alkyl group having 2 to 20 carbon atoms. Provided that both G ¹ and G ² are CH ₃ ,
Except for the case where b = 0. ]

The PO represented by the general formulas (2) and (3)
The A-modified silicone is generally called a polyether-modified silicone or an alkyl polyether-modified silicone, and functions as an emulsifier and a dispersant.
Since the main chain is a polysiloxane chain, they have good compatibility with the component (B) volatile silicone and the component (C) acryl-silicone graft copolymer in the oil phase, and have good emulsion stability. Dispersion stability can be obtained.

The POA-modified silicone of the component (D) used in the present invention can be used alone or in combination of two or more, and the compounding amount is 0.1 to 5% in the whole composition. More preferably, it is 0.5 to 4.5%. If the amount is less than 0.1%, it will not function sufficiently as an emulsifier, and it will be difficult to obtain good stability of the system. Further, when the content is more than 5%, the water resistance is lowered, and the makeup durability tends to be deteriorated, for example, the decorative film is broken by sweat or the like.

In the present invention, as the POA-modified silicone of the component (D), silicon KF-945A (manufactured by Shin-Etsu Chemical Co., Ltd.), silicon SH-3772C and SH-3772
Commercially available products such as 775C (manufactured by Dow Corning Toray Silicone Co., Ltd.) and Abil WE-09 (manufactured by Goldschmidt) can be used.

In the present invention, the component (E) brilliant powder comprises:
It is blended for the purpose of imparting gloss to the skin due to its glittering and coloring properties, and is not particularly limited as long as it is a powder usually used in cosmetics and has glittering properties. Powders and plate-like pieces having a glittering effect by light reflection, interference, and the like, which are referred to as flakes or laminating agents, are preferred. Examples of the pearl pigment include mica, phlogopite, glass flake, and organic powder treated with iron oxide, titanium oxide, and the like.Specifically, mica titanium, iron oxide mica titanium, iron oxide treated mica, black oxide Iron mica titanium, iron oxide / black iron oxide treated mica titanium, carmine treated mica titanium,
Examples include carmine / conju treated mica titanium, iron oxide / carmine treated mica titanium, konjo treated mica titanium, iron oxide / conju treated mica titanium, chromium oxide treated mica titanium, black titanium oxide treated mica titanium, fish scale foil, bismuth oxychloride, etc. can do. As a lame agent,
For example, there are a metal foil, a laminate of different or similar plate polymers, a laminate of different or similar plate polymers with a metal layer, and a laminate of a polymer colored with a dye. Specifically, a polyethylene terephthalate / polyolefin laminated film cut into powder or a polyethylene terephthalate film on which aluminum is vapor-deposited is treated with an epoxy resin colored with yellow iron oxide or a legal dye as necessary, and fine flakes are produced. Examples include polyethylene terephthalate / aluminum / epoxy laminated powder, and aluminum foil.

The component (E) brilliant powder used in the present invention can be used alone or in combination of two or more, and the compounding amount is 0.1 to 5% in the whole composition. If the amount is less than 0.1%, the glossiness of the skin is not sufficiently imparted, and it is difficult to obtain a good cosmetic effect. Further, if it is more than 5%, it becomes difficult to obtain good quality as a cosmetic, for example, the powdery feeling of glittering powder is strongly felt upon application to the skin, and smooth elongation is not obtained. .

In order to obtain better dispersibility in the water-in-oil type sun-cut cosmetic composition of the present invention, the glittering powder of the component (E) may be a silicone compound or a fluorine compound.
It is more preferable that the powder is subjected to a hydrophobic surface treatment by an ordinary method using an oil agent or the like.

In the present invention, the compounding mass ratio (C) / (E) of the component (C) acrylic-silicone graft copolymer and the component (E) glitter powder is in the range of 1/10 to 10/1. By doing so, the adhesion and adhesion of the component (E) to the skin become better, the secondary adhesion to clothes and the like is small, and the long-lasting cosmetic effect can be obtained.

In the water-in-oil type sun-cut cosmetic of the present invention,
(F) 2-60%, preferably 10-50% of water is blended to form a water-in-oil dosage form. (F) As the water, deionized purified water or the like can be suitably used, and as it is or as a solution in which a water-soluble component is dissolved, a water-in-oil emulsion or a water-in-oil dispersion is used. It is a phase. If the water content of the component (F) is less than 2%, it is difficult to impart moisture derived from moisture to the skin, and if it is more than 60%, the internal phase ratio of the water-in-oil emulsion or dispersion is high. Too much and the stability of the system is reduced.

In the water-in-oil type sun-cut cosmetic of the present invention,
Further, by blending the spherical powder of the component (G) in an amount of 0.1 to 5%, it is possible to suppress a rough feeling when the glitter powder of the component (E) is used. The spherical powder of the component (G) is not particularly limited as long as it is a spherical or substantially spherical powder that can be generally blended into cosmetics, and specific examples thereof include inorganic spherical powders such as silica and titanium oxide, nylon, and polystyrene. Examples of organic spherical powders such as methyl methacrylate, acrylonitrile-methacrylic acid copolymer, vinylidene chloride-methacrylic acid copolymer, polystyrene, polyethylene, organopolysiloxane elastomer, polymethylsilsesquioxane, and polytetrafluoroethylene Can be. In particular, organic spherical powders are unlikely to cause aggregation with inorganic compound-based UV protection powders, and depending on the type of glittering powder, there is a large roughness when applied, so a soft touch is used to alleviate this. Is particularly preferred since

In the water-in-oil type sun-cut cosmetics of the present invention, in addition to the essential components, other cosmetics ordinarily usable in cosmetics within a quantitative and qualitative range that do not impair the effects of the present invention depending on the purpose. Ingredients such as oil gelling agent, oil agent, natural pigment, synthetic pigment, ultraviolet absorber, humectant, cooling agent (menthol, camphor etc.), preservative, pH adjuster, chelating agent, lower alcohol, polyhydric alcohol ( Glycerin, propylene glycol, butylene glycol, polyethylene glycol, polyglycerin, etc.), water-soluble polymers, polysaccharides, salts, medicinal ingredients, vitamins, hormones, plant extracts,
An antioxidant, a surfactant other than the component (D), a powder other than the components (E) and (G), a fragrance, and the like can be blended.

Among the other components, as the powder other than the components (E) and (G), those usually used in cosmetics can be used. For example, talc, sericite, kaolin, mica, magnesium carbonate, calcium carbonate, silica Extenders such as magnesium silicate / aluminum magnesium silicate, silica and synthetic mica; white pigments such as titanium oxide, zinc oxide and barium sulfate; red iron oxide, yellow iron oxide, black iron oxide, gunjo,
Inorganic coloring pigments such as konjo; organic coloring pigments such as tar pigments; organic powders such as non-spherical silk powder, non-spherical styrene powder, and non-spherical crystalline cellulose can be used.
In the present invention, even in the case of the powder as the other component, if the inorganic powder is subjected to a hydrophobic surface treatment with an oil agent, a silicone compound, a fluorine compound, or the like, the inorganic powder is dispersed in the oil phase. Improved and more preferred.

Among the other components, there is an oil agent as one of the components constituting the decorative film on the skin after application. As the oil, those usually used in cosmetics can be used, for example, hydrocarbon oils such as liquid paraffin, squalane, petrolatum, polybutene; triglyceride oils such as glyceryl trioctanoate; propylene glycol dicaprate;
-Cetyl ethylhexanoate, isocetyl stearate,
Ester oils such as dipentaerythritol fatty acid esters and jojoba oil; liquid oils and semi-solid oils other than the component (B) such as silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane can be used. Also, waxes, resins, waxes, higher fatty acids, higher alcohols, etc. are blended as long as the mixture obtained by mixing and dissolving these liquid oils and semi-solid oils becomes liquid or semi-solid at room temperature. It is also possible.

The water-in-oil type sun-cut cosmetic of the present invention is a sunscreen cosmetic having an effect of preventing or reducing sunburn, skin damage, photoaging and the like brought to the skin by sunlight, ultraviolet rays, etc. The present invention can be implemented as a suntan cosmetic that tans while suppressing harmful short-wave ultraviolet rays to suppress erythema and damage to the skin, or a normal skin care cosmetic or makeup cosmetic having an effect of preventing sunburn.

[0036]

EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, which do not limit the present invention in any way.

Examples 1 to 8, Comparative Examples 1 to 4 Double-layer W /
O-Suncut Cosmetic The two-layer W / O suncut cosmetic of the present example contains a volatile silicone-based phase and a volatile silicone when the volatile silicone-based composition is separated from the external oil phase when left standing. A water-in-oil type sun-cut cosmetic that is divided into two layers, a water-in-oil phase, and a state in which the water-in-oil phase or the water phase is dispersed in a volatile silicone-based phase by shaking during use. It is. This double-layer W / O suncut cosmetic is shown in Tables 1 and 2
Prepared by the composition shown in the following and the following manufacturing method, and subjected to temperature test and use test to determine high-temperature stability, low-temperature stability, smoothness when applied to the skin, luster of the makeup film, absence of makeup transfer (secondary adhesion) and The persistence of the cosmetic effect was tested, evaluated and judged. The results are shown in Tables 1 and 2.

[0038]

[Table 1]

(Note 1) KF-6015 (Shin-Etsu Chemical Co., Ltd.) (Note 2) KP-545 (Shin-Etsu Chemical Co., Ltd.) (solid content: 3
Mixture of 0%, 70% decamethylcyclopentasiloxane. The blending amounts in Tables 1 and 2 are described as the amount of solid content.
The remaining 70% of the solvent is added to the amount of decamethylcyclopentasiloxane in Tables 1 and 2. )

[0040]

[Table 2]

<Production method> Components (1), (2) and (7) to (13) are uniformly mixed and dissolved. 2.1 Ingredients (3) to (6) and (14) to (18)
Add and disperse. 3. Components (19) to (24) are uniformly dissolved. 4.2 Add 3 gradually to 3 and emulsify, fill in container,
A two-layer W / O suncut cosmetic was obtained.

<Evaluation Method> Stability A-1: High temperature test. The sample was allowed to stand in a thermostat at 50 ° C. for one month, and the stability was observed. The judgment was made by visual observation of an observer. A-2: Low temperature severe test. The sample was allowed to stand for one month in a cycle thermostat at −10 ° C. to 20 ° C., and the stability was observed. The judgment was made by visual observation of an observer. (Judgment criteria 1) Judgment: Content ○: No change and stable. Δ: slight change is observed. (At a high temperature, a little water layer drained from the water-in-oil phase appears. At a low temperature, the water-in-oil phase gels slightly, making it difficult to re-disperse by shaking.) It is unstable. (At high temperatures, the water layer drained from the water-in-oil phase clearly appears / at low temperatures, the water-in-oil phase gels and cannot be redispersed by shaking.)

B. Use test A use test was performed on the following items by 10 panelists. The evaluation was performed by each panelist using the evaluation criterion 2 on a scale of 5 out of 5, and the average of the scores was determined using the criterion 3. B-1: Smoothness during application (elongation on skin) B-2: Gloss of makeup film B-3: No makeup transfer (when a black cloth is pressed 5 minutes after applying the sample to the arm B-4: Persistence of the cosmetic effect (each sample on the back of the panel
It was applied within a square area, and was allowed to spend at the beach. The remaining condition of the cosmetic film after 4 hours was visually evaluated. (Evaluation criteria 2) Rating: Evaluation 5: Good 4: Good slightly 3: Normal 2: Slightly bad 1: Bad (Criterion 3) Judgment: Average score ◎: 4.5 points or more ○: 3.5 points or more and less than 4.5 points Δ: 2.0 points or more and less than 3.5 points ×: Less than 2.0 points

As is clear from the results in Tables 1 and 2, the water-in-oil type sun-cut cosmetics of the present invention are smooth and stretchable on the skin when used, have a glossy makeup film, and are suitable for use on clothes. Less secondary adhesion, excellent persistence of makeup effect,
It was proved that the stability was good. On the other hand, in Comparative Examples 1 to 4, a product satisfying all items was not obtained.

[0045]

As described in detail above, the water-in-oil type sun-cut cosmetic of the present invention has good stretch on the skin at the time of application, is smooth, has a glossy cosmetic film, and is suitable for use in clothing of cosmetics. Secondary adhesion is small, it shows an excellent effect that the cosmetic effect lasts for a long time, and the stability is also good,
It has excellent quality as a water-in-oil suncut cosmetic.

Claims (5)

[Claims] 1. A water-in-oil type sun-cut cosmetic comprising the following components (A) to (F). (A) Organic compound having ultraviolet protection effect and / or inorganic compound having ultraviolet protection effect 5 to 40% by mass (B) Volatile silicone oil 10 to 60% by mass (C) Acrylic-silicone-based graft copolymer
1 to 5% by mass (D) Polyoxyalkylene-modified organopolysiloxane-based surfactant 0.1 to 5% by mass (E) Brilliant powder 0.1 to 5% by mass (F) Water 2 to 60% by mass 2. Component (C) obtained by radical copolymerization of a dimethylpolysiloxane compound having a radical polymerizable group at one end of a molecular chain and a radical polymerizable monomer mainly composed of acrylate and / or methacrylate. The water-in-oil type sun-cut cosmetic according to claim 1, which is an acrylic-silicone-based graft copolymer. 3. The water-in-oil according to claim 1, wherein the compounding mass ratio (C) / (E) of the component (C) and the component (E) is 1/10 to 10/1. Type sun cut cosmetics. 4. The water-in-oil type suncut cosmetic according to claim 1, further comprising 0.1 to 5% by mass of the component (G) spherical powder. 5. The water-in-oil type suncut cosmetic according to claim 1, wherein all or a part of the component (E) has been subjected to a hydrophobic surface treatment.