JP3354296B2 - Makeup cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a makeup cosmetic, and more particularly, to a makeup cosmetic which has good spreadability and smoothness, and has a smooth feeling of use.

[0002]

2. Description of the Related Art Makeup cosmetics are used to give bright and vivid colors to the skin. Generally, various organic powders are blended into makeup cosmetics in order to impart the covering property, the extensibility (expansion), the oil-absorbing property, the adhesive property (paste), the coloring property, the glittering property and the like. Examples of the organic powder include organic resin powders such as polyethylene resin, polypropylene resin, polyamide resin, acrylic resin, vinyl chloride resin, epoxy resin, and polystyrene resin, and nylon resin powder (see JP-A-5-25019). Polymethylsilsesquioxane powder (JP-A-63
-297313, JP-A-1-268615, JP-A-5-25019 and JP-A-5-14
No. 8120), silicone rubber powder (Japanese Unexamined Patent Publication No.
1-119409 and JP-A-2-243612
Reference).

[0003]

However, organic resin powders and polymethylsilsesquioxane powders are not elastic and have very high hardness. There has been a problem that the adhesiveness and spreadability are poor, rough, and foreign-body sensation is felt. Further, a makeup cosmetic comprising an irregularly shaped silicone rubber powder prepared by pulverizing silicone rubber as proposed in Japanese Patent Application Laid-Open No. 61-194509 is not satisfactory in spreading and gluing to the skin. There was a problem. Also, JP-A-2-2436
No. 12, make-up cosmetics containing a silicone rubber powder containing 0.5 to 80% by weight of a non-crosslinkable silicone oil have low hardness and low tackiness of the silicone rubber powder itself. Therefore, there is a problem that the skin has poor spread and glue and feels sticky.

[0004] The present inventors have made intensive studies on the above problems and as a result have reached the present invention. That is, an object of the present invention is to provide a makeup cosmetic that has good spreadability and adhesion, is smooth, and has a smooth feeling of use.

[0005]

The makeup cosmetic of the present invention has an average particle diameter of 0.1 to 200 μm.
m of a spherical silicone rubber powder (provided that the JIS A hardness of the silicone rubber forming the powder is 35 to 80) is 0.1 to 50% by weight. Hereinafter, the makeup cosmetics of the present invention will be described in detail.

[0006] The makeup cosmetics of the present invention include, for example, adjusting the color of the skin to impart a bright transparent feeling to the skin,
A white powder for suppressing sweat and sebum and for suppressing oily blemishes, a foundation for beautiful skin color, giving the skin a lustrous, firm, transparent feeling and covering skin spots, freckles, etc .;
Color your lips, apply lipstick to accent your face, and reddish cheeks to make it look brighter and healthier, contour your face,
There are blusher for giving a three-dimensional effect, and eye shadow for giving a three-dimensional look by shading the eyes and enriching the look of the eyes. The composition of the present invention varies depending on the dosage form, and the dosage form is not particularly limited, and examples thereof include a liquid, a cream, a wax, and a powder.

In the makeup cosmetic of the present invention, the silicone rubber powder, which is an essential component, needs to have an average particle diameter in the range of 0.1 to 200 μm. This is because it is difficult to exhibit the effects of the present invention with a silicone rubber powder having an average particle size of less than 0.1 μm, and with a silicone rubber powder having an average particle size of more than 200 μm, a squeaky feeling or rugged foreign matter is caused. Because there is a feeling. Further, the dispersion of the particle diameter of the silicone rubber powder is reduced, so that the feeling of use tends to be improved. In order to obtain a suitable feeling of use, the particle diameter is preferably 250 μm or less. The shape of the silicone rubber powder needs to be spherical, but does not have to be strictly true spherical. For example, a spherical shape having an elliptical cross section may be used, but a true spherical shape is preferable. Further, the JIS A hardness (specified in JIS K6301) of the silicone rubber forming the silicone rubber powder needs to be in the range of 35 to 80. This is because the powder made of silicone rubber having a JIS A hardness of less than 35 gives a sticky feeling, and the powder made of silicone rubber having a JIS A hardness of more than 80 gives a rough feeling. ,
This is because a foreign body sensation is felt.

The method for producing the silicone rubber powder is not particularly limited. For example, a thermosetting liquid silicone rubber composition is sprayed into hot air so as to have a spherical shape with an average particle diameter of 0.1 to 200 μm. Curing method, thermosetting liquid silicone rubber composition having an average particle diameter of 0.1 to 20
A method of dispersing and curing in water so as to form a spherical shape of 0 μm (JP-A-63-77942, JP-A-64-7)
The latter method is preferable because the average particle diameter is small, the dispersion of the particle diameter is small, and a spherical silicone rubber powder can be prepared.

In the makeup cosmetic of the present invention, the amount of the silicone rubber powder varies depending on the dosage form.
In general, it is necessary to be in the range of 0.1 to 50% by weight, and in a press-like makeup cosmetic, it is 1 to 50% by weight.
It is preferably in the range of 50% by weight, and in the case of a liquid makeup cosmetic, it is preferably in the range of 0.1 to 30% by weight. If the amount of the silicone rubber powder is less than 0.1% by weight, it is difficult to exhibit the effects of the present invention.
If the amount exceeds the above range, the stability of the dosage form is reduced when the composition is in the form of a cream or a stick, and the usability as a makeup cosmetic is reduced.

[0010] The makeup cosmetic of the present invention includes:
As an oily component for imparting good adhesion and keeping the dosage form semi-solid or solid, for example, a melting point of 50
~ 110 ° C wax can be blended. Specific examples of this wax include beeswax, carnauba wax, candelilla wax, ozokerite, ceresin,
Rice wax, mokurou, montan wax, candelilla wax, ozokerite, paraffin wax, microcrystalline wax, atearyl alcohol, hydrogenated castor oil, lanolin, petrolatum, cholesteryl stearate are exemplified, and alkoxy-modified polysiloxane,
Examples thereof include semi-solid or solid silicone oils such as polyoxyalkylene-modified silicone and alkyl-modified silicone. In the makeup cosmetic of the present invention, this wax can be blended alone or as a mixture of two or more.

The makeup cosmetic of the present invention includes:
For example, an oily component that is liquid at room temperature can be blended as an oily component for imparting good adhesion and keeping the dosage form in a creamy or liquid state. Specific examples of the oily component include liquid paraffin, hexyl laurate, isopropyl myristate, myristyl myristate, cetyl myristate, 2-octyldodecyl myristate, isopropyl palmitate, and palmitate 2
-Ethylhexyl, butyl stearate, decyl oleate, 2-octyldodecyl oleate, myristyl lactate, cetyl lactate, lanolin acetate, stearyl alcohol, cetostearyl alcohol, oleyl alcohol,
Avocado oil, almond oil, olive oil, cacao oil, jojoba oil, sesame oil, safflower oil, soybean oil, camellia oil, squalane, persic oil, castor oil, mink oil, cottonseed oil,
Glycol ester oils such as coconut oil, egg yolk oil, beef tallow, lard, polypropylene glycol monooleate, neopentyl glycol-2-ethylhexanoate; polyhydric alcohol ester oils such as isostearic acid triglyceride and coconut oil fatty acid triglyceride; Polyoxyalkylene ether oils such as ethylene lauryl ether and polyoxypropylene cetyl ether; ethanol,
Alcohols such as octyldodecanol, cetyl alcohol, and oleyl alcohol; dimethylsiloxane, polymethylphenylsiloxane, polymethylhydrogensiloxane, dimethylsiloxane / methylstearoxysiloxane copolymer, dimethylsiloxane / methylcetyloxysiloxane copolymer, dimethyl Siloxane-methyl (polyoxyethylene) siloxane copolymer, dimethylsiloxane-methyl (polyoxyethylene-polyoxypropylene) siloxane copolymer, dimethylsiloxane-methyl (polyoxypropylene) siloxane copolymer, cyclic polydimethylsiloxane, Cyclic polymethylphenylsiloxane, cyclic polymethylhydrogensiloxane, amino-modified polysiloxane, epoxy-modified polysiloxane, Shiarukiren modified polysiloxane,
Examples include silicone oils such as alkoxy-modified polysiloxanes and alkyl-modified polysiloxanes. The oily component can be incorporated into the makeup cosmetic of the present invention alone or as a mixture of two or more.

In the make-up cosmetic of the present invention, the amount of the wax having a melting point of 50 to 110 ° C. or the oily component which is liquid at room temperature is optional, but imparts good adhesion.
Further, in order to maintain the dosage form, the content is preferably in the range of 0.5 to 90% by weight, and particularly preferably in the range of 1 to 80% by weight.

Further, the makeup cosmetic of the present invention includes:
Volatile oils can be incorporated to improve their spread and glue and to provide a refreshing feel during and after use. Specific examples of the volatile oil component include cyclic diorganosiloxanes such as octamethyltetracyclosiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane; hexamethyldisiloxane, octamethyltrisiloxane, and decamethyltetrasiloxane. Diorganosiloxane oligomers; lower alcohols such as methyl alcohol, ethyl alcohol, n-propyl alcohol, and isopropyl alcohol; and paraffinic hydrocarbons. In the makeup cosmetic of the present invention, this volatile oil can be blended alone or as a mixture of two or more.

In the make-up cosmetic of the present invention, the volatile oil can be added to the make-up cosmetic of the present invention at an arbitrary ratio. , And particularly preferably within a range of 1 to 80% by weight.

Further, the makeup cosmetic of the present invention includes:
Inorganic powders or organic powders that are usually blended to improve the spread and glue to the skin can be blended. Specific examples of the inorganic powder include talc, sericite, mica, colloidal silica, kaolin, zinc white, magnesium carbonate, calcium carbonate, bentonite, hectorite, and colloidal aluminum magnesium silicate. Specifically, silk powder, polyethylene resin powder, Teflon powder, acrylic resin powder, polypropylene resin powder, polystyrene resin powder, vinyl chloride resin powder, cellulose powder, nylon resin powder, acrylic resin powder, polyorganosilsesquioxane powder Is exemplified. These powders can be blended into the makeup cosmetics of the present invention alone or as a mixture of two or more.

In the makeup cosmetic of the present invention, the compounding ingredients of these powders are optional, but they can improve the spread and glue to the skin, and also provide the stability of the dosage form and good usability. Is preferably in the range of 5 to 90% by weight, and particularly preferably in the range of 10 to 80% by weight.

The makeup cosmetic of the present invention includes:
Purified water can be blended to make this an emulsion,
In addition, a surfactant can be added to the oil component to emulsify it in water or to make it easy to wash it off with water after use. Specific examples of the surfactant include sorbitan aliphatic esters, polyoxyethylene sulitol lanolin derivatives, polyoxyethylene aliphatic ethers, polyoxyethylene propylene glycol stearate, polyoxyethylene stearate, and polyoxyethylene sorbitan aliphatic. Ether and polyoxypropylene / polyoxyethylene condensate are exemplified. In the makeup cosmetic of the present invention, this surfactant can be blended alone or as a mixture of two or more. In addition, the makeup cosmetic of the present invention may further include, as optional components, fluorine oils such as perfluoropolyether, perfluorodecalin, and perfluorooctane; aluminum halides and aluminum hydroxyhalides, depending on the intended use. Astringent complex salts such as zirconia oxyhalide and zirconia hydroxyhalide; water-soluble and oil-soluble polymers, coloring agents such as inorganic and organic pigments, organic dyes, purified water, preservatives, antioxidants, pigments, thickeners, pH adjustment Agents, fragrances, UV absorbers,
Moisturizing agents, anti-inflammatory agents, blood circulation promoters, cooling agents, antiperspirants, bactericides, antibacterial agents, skin activators, propellants, and stabilizers can be added.

The makeup cosmetic of the present invention has a solid form,
Emulsified foundations such as emulsion foundations and creamy foundations, depending on the dosage form such as semi-solid, creamy, liquid, etc .;
Non-emulsifying foundations such as cake-like foundations and pancakes; lipsticks such as lipsticks and cheeks; eyebrow cosmetics such as eye shadows, mayuzumi, eyeliners, and mascaras.

The method for producing the makeup cosmetic of the present invention is not particularly limited, and for example, it can be prepared by a batch system or a continuous system. The apparatus for preparing the makeup cosmetic of the present invention is not particularly limited, and examples thereof include a homomixer, a paddle mixer, a colloid mill, a propeller stirrer, a homogenizer, an in-line continuous emulsifier, an ultrasonic emulsifier, and a vacuum kneader. Is mentioned.

[0020]

EXAMPLES The makeup cosmetic of the present invention will be described in more detail with reference to examples. In the examples, the viscosity is a value measured at 25 ° C. In addition, JIS for silicone rubber
A hardness, particle size and shape of silicone rubber powder, and sensory evaluation of makeup cosmetics were measured as follows. [Hardness of Silicone Rubber] The silicone rubber composition as a raw material was heated in a hot air circulating oven at 150 ° C. for 1 hour to prepare a silicone rubber, which was cooled to room temperature and then JIS.
It was measured by a JIS A hardness meter specified in K6301. [Particle Size and Shape of Silicone Rubber Powder] An image processing apparatus connected to an optical microscope using the silicone rubber powder
The particle diameter was measured, and the maximum particle diameter and the average particle diameter were determined. The shape of the silicone rubber powder was observed with a scanning electron microscope. [Sensory Evaluation of Makeup Cosmetics] Sensory evaluation of make-up cosmetics was carried out by 10 panelists, such as stretching and gluing, and feeling of use.
The case where 4 to 7 persons were judged to be good was evaluated as △, and the case where less than 4 persons were judged to be good was evaluated as ×.

Reference Example 1 Both ends of a molecular chain having a molecular weight of 100 centipoise and a viscosity of 20 centipoise were blocked with a trimethylsiloxy group. 5.2 parts by weight of polymethylhydrogensiloxane and isopropanol solution of chloroplatinic acid (an amount of 50 ppm as platinum metal with respect to the weight of the composition) at 5 ° C.
To obtain a liquid silicone rubber composition. The liquid silicone rubber composition was immediately mixed in 300 parts by weight of a 2% by weight aqueous solution of 25 ° C. pure water (electrical conductivity 0.2 μS / cm) and polyoxyethylene (9 mol added) lauryl ether, This was passed through a homogenizer (300 kgf / cm ² ) to prepare a uniform aqueous dispersion of a liquid silicone rubber composition. The aqueous dispersion was allowed to stand at 30 ° C. for 6 hours, and then heated at 80 ° C. for 1 hour to cure the composition. Thereafter, this aqueous dispersion was dried with a spray drier to prepare a silicone rubber powder (A). The properties of this silicone rubber powder (A) are shown in Table 1.

REFERENCE EXAMPLE 2 Both ends of a molecular chain having a viscosity of 20 centipoise were blocked with a trimethylsiloxy group, 100 parts by weight of polydimethylsiloxane (vinyl group equivalent = 2500) having both ends of the molecular chain blocked with a dimethylvinylsiloxy group. 5.2 parts by weight of polymethylhydrogensiloxane and isopropanol solution of chloroplatinic acid (an amount of 50 ppm as platinum metal with respect to the weight of the composition) at 5 ° C.
To obtain a liquid silicone rubber composition. The liquid silicone rubber composition was immediately mixed in 300 parts by weight of a 2% by weight aqueous solution of 25 ° C. pure water (electrical conductivity 0.2 μS / cm) and polyoxyethylene (9 mol added) lauryl ether, This was passed through a colloid mill having a gap of 1 mm to prepare a uniform aqueous dispersion of a liquid silicone rubber composition. The aqueous dispersion was allowed to stand at 30 ° C. for 6 hours, and then heated at 80 ° C. for 1 hour to cure the composition. Thereafter, the aqueous dispersion was dried with a spray drier to prepare a silicone rubber powder (B). Table 1 shows the properties of the silicone rubber powder (B).

REFERENCE EXAMPLE 3 100 parts by weight of polydimethylsiloxane having both molecular chain terminals capped with a dimethylvinylsiloxy group (vinyl equivalent = 5000), dimethylsiloxane having both molecular chain terminals capped with a trimethylsiloxy group 4.5 parts by weight of methyl hydrogen siloxane copolymer and isopropanol solution of chloroplatinic acid (an amount of 50 ppm of platinum metal with respect to the weight of the composition) are uniformly mixed at 5 ° C. to give a liquid silicone rubber composition. Prepared. The liquid silicone rubber composition was immediately mixed in 300 parts by weight of a 2% by weight aqueous solution of 25 ° C. pure water (electrical conductivity 0.2 μS / cm) and polyoxyethylene (9 mol added) lauryl ether, Use this with a homogenizer (30
0 kgf / cm ² ) to prepare a uniform aqueous dispersion of the liquid silicone rubber composition. The aqueous dispersion was allowed to stand at 30 ° C. for 6 hours, and then heated at 80 ° C. for 1 hour to cure the composition. Thereafter, the aqueous dispersion was dried with a spray drier to prepare a silicone rubber powder (C). Table 1 shows the characteristics of the silicone rubber powder (C).

Reference Example 4 100 parts by weight of polydimethylsiloxane in which both ends of a molecular chain are blocked with a dimethylvinylsiloxy group (vinyl group equivalent = 5000), dimethylsiloxane in which both ends of a molecular chain are blocked with a trimethylsiloxy group 4.5 parts by weight of a methylhydrogensiloxane copolymer, 50 parts by weight of dimethylpolysiloxane having a viscosity of 100 centistokes and both ends of a molecular chain blocked with trimethylsiloxy groups, and an isopropanol solution of chloroplatinic acid (based on the weight of the composition) The amount of the platinum metal was 50 ppm with respect to the mixture) was uniformly mixed at 5 ° C. to prepare a liquid silicone rubber composition. This liquid silicone rubber composition was treated with a 2% by weight aqueous solution of 25 ° C. pure water (electrical conductivity 0.2 μS / cm) and polyoxyethylene (9 mol added) lauryl ether 3
The resulting mixture was quickly mixed into 100 parts by weight, and then passed through a homogenizer (300 kgf / cm ² ) to prepare a uniform aqueous dispersion of a liquid silicone rubber composition. This aqueous dispersion is added to 30
C. for 6 hours, then heat at 80.degree. C. for 1 hour,
The composition was cured. Thereafter, the aqueous dispersion was dried with a spray drier to obtain a silicone rubber powder (D).
Was prepared. Table 1 shows the properties of the silicone rubber powder (D).
It was shown to.

REFERENCE EXAMPLE 5 Both ends of a molecular chain having a viscosity of 20 centipoise are blocked with a trimethylsiloxy group, and 100 parts by weight of polydimethylsiloxane (vinyl group equivalent = 2,500) having both ends of the molecular chain blocked with a dimethylvinylsiloxy group. 5.2 parts by weight of polymethylhydrogensiloxane and isopropanol solution of chloroplatinic acid (an amount of 50 ppm as platinum metal with respect to the weight of the composition) at 5 ° C.
To obtain a liquid silicone rubber composition. This liquid silicone rubber composition was heated in a hot air circulating oven at 150 ° C. for 1 hour to cure the composition. Thereafter, the silicone rubber was finely pulverized with a mill for 3 hours, and then a 100-mesh silicone rubber powder (E) was prepared through a sieve. The properties of the silicone rubber powder (E) are shown in Table 1.

[0026]

[Table 1]

Example 1 and Comparative Examples 1 to 6 (Powder Foundation) The silicone rubber powders (A to E) prepared in the above Reference Examples 1 to 5 and JI powder having an average particle diameter of 3 μm were used.
25% by weight of polymethylsilsesquioxane powder (F) having an SA hardness of more than 90; 15% by weight of sericite surface-treated with dimethylpolysiloxane; 14% by weight of talc surface-treated with dimethylpolysiloxane; 30% by weight of mica surface-treated with siloxane, 1.0% by weight of bengalara, 2.5% by weight of yellow iron oxide
And 0.2% by weight of black iron oxide are uniformly mixed with a Henschel mixer, and then a heated mixture of 10% by weight of dimethylpolysiloxane of 6 centistokes prepared in advance and 2% by weight of beeswax, 0.2% by weight of preservative and fragrance 0.1
After weight% was dropped and mixed uniformly, this was press-molded to prepare a powder foundation. For comparison, a powder foundation was prepared using sericite surface-treated with dimethylpolysiloxane instead of silicone rubber powder. These powder foundations were applied to the faces of panelists and their sensory evaluation was performed. Table 2 shows the results.

[0028]

[Table 2]

[Example 2 and Comparative Examples 7 to 12 (magenta)] The silicone rubber powders prepared in the above Reference Examples 1 to 5
(A to E) and the above polymethylsilsesquioxane powder
(F) 30% by weight, 15% by weight of kaolin surface-treated with dimethylpolysiloxane, 15% by weight of mica surface-treated with dimethylpolysiloxane, 15% by weight of titanium oxide, 5% by weight of bengara, 2% by weight of Red 202 7.8% by weight of squalane, 10% by weight of dimethylpolysiloxane of 6 centistokes, 0.1% by weight of preservative
And 0.1% by weight of a fragrance were uniformly mixed with a Henschel mixer to prepare a blusher. For comparison, blush was prepared using kaolin surface-treated with dimethylpolysiloxane instead of silicone rubber powder.
These cheeks were applied to the faces of panelists and their sensory evaluation was performed. Table 3 shows the results.

[0030]

[Table 3]

[0031]

EFFECT OF THE INVENTION The makeup cosmetic of the present invention is characterized in that it has good spreadability and glue, is smooth, and has a dry feeling.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Asao Harajima 2-2 Chikusa Beach, Ichihara City, Chiba Prefecture Toray Dow Corning Silicone Co., Ltd. Research and Development Division (56) References JP-A-2-243612 (JP) JP-A-5-309260 (JP, A) JP-A-61-210022 (JP, A) JP-A-64-13012 (JP, A) JP-A-64-13013 (JP, A) JP-A-4-312511 (JP, A) JP-A-3-39359 (JP, A) JP-A-8-12545 (JP, A) JP-A-8-12546 (JP, A) A) JP-A-7-2624 (JP, A) JP-A-6-183929 (JP, A) JP-A-7-258028 (JP, A) JP-A-7-330537 (JP, A) JP-A-7 JP-A-330536 (JP, A) JP-A-63-77942 (JP, A) JP-A-64-70558 (JP, A) , A) JP-T flat 6-507426 (JP, A) JP-T flat 8-506583 (JP, A) (58 ) investigated the field (Int.Cl. ^7, DB name) A61K 7/00 - 7/50

Claims (2)

(57) [Claims] 1. Spherical silicone rubber powder having an average particle size of 0.1 to 200 μm (provided that the silicone rubber forming the powder has a JIS A hardness of 35 to 80).
A makeup cosmetic characterized by containing about 50% by weight. 2. The spherical silicone rubber powder has a particle size of 250.
2. The makeup cosmetic according to claim 1, wherein the thickness is not more than μm.