JP3383702B2 - 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 make-up cosmetic composition containing powder, and more specifically to high-viscosity polymethyl silicone.
The present invention relates to a powder-containing makeup cosmetic containing a gel formed from xanthan and a porous powder.

[0002]

2. Description of the Related Art In makeup cosmetics, powders are
It is one of the important ingredients that is indispensable in order to hide the unfavorable parts such as spots and freckles on the skin and to protect the skin from ultraviolet rays. However, many of the above powders are metal oxides and minerals, and their specific gravities are greatly different from the bases such as oils and fats and water that hold them, so disperse them in the base for a long time. Was difficult. Therefore, conventionally, powders are stably blended by, for example, dispersing the powders in an oil gel structure formed of wax and fats or a gel structure formed of fatty acid soap-water-oils. I was getting make-up cosmetics.

However, the viscosity of both the oil gel of wax and fat and the gel of fatty acid soap-water-oil and fat decreases remarkably at high temperature, so that it has to be hard at room temperature, and therefore the usability for stability is high. It was a sacrifice. That is, in the makeup cosmetics obtained by dispersing powders in such a strong gel structure, although powders are stably dispersed, inevitably the spread becomes heavy and the thickness becomes thick. There was a problem in usability.
Further, when the oil gel is used by filling it in a tube or the like, the gel structure is broken and separated due to ironing during use, so that there is a problem that it cannot be used in a tube.

[0004]

SUMMARY OF THE INVENTION In order to overcome the above problems, the present invention provides a powder-containing make-up cosmetic composition which is excellent in dispersion stability of powders and is excellent in usability. This is an issue.

[0005]

Means for Solving the Problems In order to solve the above problems, the present inventor has conducted extensive studies in search of a gel structure substance whose viscosity is not significantly affected by temperature changes, and as a result,
We have found that the gel obtained by combining high-viscosity polydimethylsiloxane and a specific porous powder in a fixed ratio has excellent dispersion stability of powders and has almost no temperature dependence of viscosity, thus completing the present invention. Let

That is, the present invention provides a make-up cosmetic containing powder at 25 ° C. with respect to the total amount of the cosmetic.
High viscosity with a viscosity of 30,000 to 1 million centistokes
10-30% by weight of polydimethylsiloxane and silica gel
And / or selected from magnesium aluminum silicate
A gel formed from 1 to 15% by weight of porous powder
It is a makeup cosmetic characterized by being blended . Hereinafter, the present invention will be described in detail.

<1> High-viscosity polydimethylsiloxane and porous powder The powder-containing makeup cosmetic composition of the present invention contains high-viscosity polydimethylsiloxane and porous powder as components of the base gel.

High viscosity polydimethylsiloxane used in the present invention
As the sun , those having a viscosity at 25 ° C. of 30,000 to 1,000,000 centistokes are preferable, and those having a viscosity of 50,000 to 100,000 centistokes are more preferable. If the viscosity is lower than 30,000 centistokes, the powders cannot be held and the stability is impaired, and if the viscosity is higher than 1,000,000 centistokes, the elongation may be heavy and the usability may be impaired.

[0009]

The porous powder used in the present invention is silica.
Examples include kagel and magnesium aluminum silicate, which may be used alone or in combination of two kinds.

The particle diameter of the porous powder used in the present invention is such that it does not impair the feeling of use when incorporated into a makeup cosmetic, preferably 0.1 to 50 μm, more preferably 1 to 50 μm.
It is 20 μm. These can be used in the present invention in any state, but are preferably in the form of fumes. The surface of these porous powders may be used as they are without treatment or after various treatments.

<2> Makeup Cosmetic of the Present Invention The powder-containing makeup cosmetic of the present invention is a dispersion type makeup cosmetic containing powder as a dispersed phase,
As a component of a base gel (dispersion medium) that stably disperses powder, the above high-viscosity polydimethylsiloxane and porous powder are blended.

The powder to be blended in the dispersion type makeup cosmetics to which the present invention is applied is not particularly limited as long as it is a powder usually used in makeup cosmetics, but the cosmetics for various purposes are used. Various inorganic and organic powders to be blended can be mentioned.

Examples of the above-mentioned inorganic powders include navy blue, gunjou, yellow iron oxide, red iron oxide, black iron oxide, titanium oxide, zinc oxide, zirconium oxide, chromium oxide, chromium hydroxide, cobalt oxide, talc, carion and mica. , Sericite, bentonite, manganese violet, carbon black, titanium mica and the like.

Examples of the above organic powders include shikonin, carmine, yellow No. 4 aluminum lake, yellow No. 5 aluminum lake, blue No. 1 aluminum lake, and the like.

These powders may be used as they are without treatment, or may be used after being subjected to various treatments such as surface treatment, which are usually carried out when used in cosmetics, if necessary.

[0017] The amount of high viscosity polydimethylsiloxane may vary the viscosity of the high viscosity polydimethylsiloxane compounded, preferably against the total amount of the cosmetic 10-30
%, More preferably 15 to 25% by weight. If the blending amount of the high-viscosity polydimethylsiloxane is less than 10% by weight, the dispersion stability of the powders may be insufficient, and if it exceeds 30% by weight, the usability may be impaired.

The amount of the porous powder compounded is preferably 1 to 15% by weight, more preferably 3%, with respect to the total amount of the cosmetic.
10 to 10% by weight. If the blending amount of the porous powder is less than 1% by weight, the stability of the dispersion system may deteriorate, and if it exceeds 15% by weight, the feeling of use may be impaired.

The dosage form of the makeup cosmetic of the present invention is not particularly limited as long as it is a dispersion system containing powders usually used in makeup cosmetics as a disperse phase.
Examples include those normally used as makeup cosmetics such as under-makeup, foundation, cheek color, eye color, mascara, eyebrow and lip color. These cosmetics, the high-viscosity polydiorganosiloxane
Methylsiloxane and porous powder can be used as a base gel in the same manner as in the case of ordinary makeup cosmetics.

The make-up cosmetic composition of the present invention comprises powders as a dispersed phase and high-viscosity polydimethyi which is a component of a base gel.
In addition to polysiloxane and porous powder, various components commonly used in cosmetics, that is, aqueous components, oils and fats, waxes, alcohols, surfactants, chelating agents, antioxidants, preservatives, pH adjusters , Moisturizers, thickeners, colorants, hormones, nucleic acids, anti-inflammatory agents, ultraviolet absorbers, whitening agents, vitamins, fragrances and the like can be added.

Among the above-mentioned various components, as the oils and fats, it is preferable to use low-viscosity silicone and / or liquid hydrocarbons in consideration of the compatibility with the above-mentioned high-viscosity polydimethylsiloxane .

The low-viscosity silicone is not particularly limited as long as it has a viscosity at 25 ° C. of about 10 to 30 centistokes, and examples thereof include polydimethylsiloxane and polymethylphenylsiloxane. It may be chain, branched or cyclic. Also,
The liquid hydrocarbons are not particularly limited as long as they have a boiling point under atmospheric pressure of less than 200 ° C., and various linear or branched hydrocarbons can be used.

The amount of low-viscosity silicone and / or liquid hydrocarbons is preferably 10 to 50% by weight, more preferably 20 to 50% by weight, considering the stability and the feeling of use. It is 40% by weight.

By using the above-mentioned low-viscosity silicone and / or liquid hydrocarbons as fats and oils, a make-up cosmetic composition further excellent in stability and usability can be obtained.

[0025]

EXAMPLES Examples of the present invention will be described below. In addition, all compounding amounts used below are parts by weight.

[0026]

Examples 1 to 3 Foundation A component (oils and fats) shown in Table 1 was added with component B (powder) and dispersed by a ball mill, and component C (gel component) was added to this to make a foundation. . Further, in the same manner, a foundation of Comparative Example 1 was prepared in which microcrystalline wax was blended in place of the polydimethylsiloxane (50,000 centistokes) of Example 1.

[0027]

[Table 1]

[0028]

Example 4 Cheek Color A component B shown in Table 2 was added to the component B and dispersed by a ball mill, and the component C was added to this to make a uniform cheek color.

[0029]

[Table 2]

[0030]

Example 5 Lip Color The component B shown in Table 3 was added to the component B and dispersed by a ball mill, and the component C was added to the mixture to make a uniform lip color.

[0031]

[Table 3]

<Evaluation of Makeup Cosmetics of the Present Invention> The makeup cosmetics obtained in each of the above-mentioned Examples and Comparative Examples were subjected to hardness measurement, observation of change with time, and stability test against ironing motion, and use. The feeling and stability were evaluated.

(1) Hardness Measurement The foundation of Example 1 was placed at each temperature shown in Table 4, and after 24 hours when the structure was stable, the penetration hardness was measured using a card meter. The measurement was performed with an attachment having a diameter of 16 mm and a load of 100 g. The results are shown in Table 4.

[0034]

[Table 4]

From these results, it is understood that the viscous properties of the makeup cosmetic composition of the present invention do not depend on temperature. The results also show that the makeup cosmetic composition of the present invention has a hardness suitable for use, that is, an excellent feeling of use at normal use temperatures.

(2) Observation of daily changes Five makeup tubes of each of the makeup cosmetics of Examples 1 to 5 were filled, and each temperature condition (-10 ° C,
5 ℃, 20 ℃, 40 ℃, aging box (4
The change over time for 2 months was observed under 5 conditions of an accelerated deterioration tester) in which a cycle of 0 ° C → -10 ° C → 40 ° C was performed for 48 hours.

As a result, no abnormality was found in the makeup cosmetics of any of the examples under any temperature condition. This shows that the makeup cosmetic composition of the present invention has excellent stability. (3) Stability test against squeezing operation The foundations of Example 1 and Comparative Example 1 were filled in transparent tubes, left standing at 40 ° C., and squeezed once a day for 30 days, and then the state was observed. .

As a result, in the foundation of Comparative Example 1, the powders and the base were separated, whereas in the foundation of Example 1, no abnormality was recognized. From this, it is understood that the makeup cosmetic of the present invention is stable even against the squeezing operation when filled in a tube or the like.

[0039]

EFFECT OF THE INVENTION The powder-containing makeup cosmetic composition of the present invention is excellent in dispersion stability of powders and also in feeling of use.

Claims (2)

(57) [Claims] 1. A make-up cosmetic containing powder, wherein the total amount of the cosmetic is 30,000 to 1,000,000 cents at 25 ° C.
High-viscosity polydimethylsiloxane having a viscosity of Chistokes
10 to 30% by weight of sun and silica gel and / or silica
Porous powder 1 selected from Luminium magnesium
A make-up cosmetic composition comprising a base gel formed of 15% by weight. 2. The makeup cosmetic composition according to claim 1, wherein liquid hydrocarbons and / or low-viscosity silicone are blended in an amount of 10 to 50% by weight based on the total amount of the cosmetic composition. .