JP2726778B2 - Cosmetic powder and cosmetic containing the powder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention has excellent water and oil repellency,
In addition, cosmetic powders having excellent feeling in use, particularly smoothness, and cosmetics containing the powders, more specifically, water- and water-repellent surfaces of spherical polymer powders treated with a phosphate compound having a perfluoroalkyl group The present invention relates to an oily cosmetic powder and a cosmetic containing the powder.

[0002]

2. Description of the Related Art Cosmetics containing cosmetic powders include makeup cosmetics such as foundations, white powders, blushers, eye shadows, eye blows, etc., and body powders such as body powders and baby powders. Cosmetics and the like are commercially available. In cosmetics containing these cosmetic powders, there is a problem in terms of elongation on the skin, smoothness, and makeup performance such as makeup breakdown due to sebum.

In recent years, it has been proposed to treat powder with a fluorine compound to impart water / oil repellency to the powder in order to prevent the cosmetics from breaking down due to sebum (Japanese Patent Application Laid-Open No. H11-163873). JP-A-55-167209, JP-A-62-275074
And JP-A-1-180811 and U.S. Pat. No. 3,632,744. However, these water-repellent and oil-repellent powders have a drawback that the smoothness is extremely poor in terms of usability as compared to before the treatment with the fluorine compound. Therefore, when a spherical powder is used in combination with the water-repellent and oil-repellent powder for the purpose of improving smoothness, the effect of preventing makeup collapse due to sebum is reduced.

[0004] Accordingly, an object of the present invention is to provide a cosmetic powder having excellent water and oil repellency and excellent feeling in use, particularly excellent smoothness, and containing the powder, water resistance, sebum resistance and oil resistance. An object of the present invention is to provide a cosmetic composition which has good properties, is excellent in the effect of preventing makeup collapse due to sebum and the like (makeup persistence), has good elongation on the skin, and is excellent in usability, particularly excellent in smoothness.

[0005]

Means for Solving the Problems The inventor of the present invention has conducted diligent studies and found that, besides the fact that spherical polymer powders were surface-treated with a specific surfactant, these polymers usually have no surface activity. Nevertheless, the surface treatment can be easily performed, and these surfactants are not easily separated from the spherical polymer powder by oil, water, etc., and the treated powder obtained by the surface treatment, and It has been found that a cosmetic containing the treated powder achieves the above object.

[0006] The present invention has been made based on the above-mentioned findings, and is intended to provide a spherical polymer powder comprising a polyfluoride represented by the following formula (2).
It is intended to provide a cosmetic powder obtained by performing a surface treatment with a loalkyl phosphoric acid .

Embedded image [C _m F _{2m + 1} C _n H _2n O] _q PO (OH) _3-q (wherein m represents an integer of 1 to 20, n represents an integer of 1 to 5, q Represents the number of 1 to 3.) The present invention also provides a cosmetic containing the above-mentioned cosmetic powder of the present invention.

First, the cosmetic powder of the present invention will be described in detail. The spherical polymer powder used in the present invention is not particularly limited as long as it is spherical, and examples thereof include polymethylsilsesquioxane (Japanese Unexamined Patent Application Publication No.
And spherical powders made of materials such as nylon, polymethyl methacrylate, polyethylene, divinylbenzene / styrene copolymer, and cellulose, and manufactured by Toshiba Silicone Co., Ltd. Tospearl 120 and Tospearl 1
Commercial products such as 45 (spherical polymethylsilsesquioxane powder) and SP-500 (spherical nylon powder) manufactured by Toray Industries, Inc. can be used.

The spherical polymer powder may be used alone or
More than one kind can be used in combination, and in particular, spherical polymethylsilsesquioxane powder and spherical nylon powder are preferable from the viewpoint of water and oil repellency. The spherical polymer powder preferably has an average particle size of 0.1 to 20 μm.

Further, the treating agent used in the present invention is as follows:
Of a polyfluoroalkyl phosphoric acid represented by 3 (see U.S. Pat. No. 3,632,744).

[0010]

Embedded image _{[C m F 2m + 1 C n} H 2n O ] _q PO (OH) _3-q
(In the formula, m represents an integer of 1 to 20, n represents an integer of 1 to 5, and q represents a number of 1 to 3.)

The above polyfluoroalkyl phosphoric acid (hereinafter, referred to as
The surface treatment of the spherical polymer powder with a phosphoric acid ester compound) can be performed by various methods commonly used. For example, the surface treatment may be performed by mixing the phosphoric acid ester compound as it is in the spherical polymer powder while mixing the spherical polymer powder in a mixing and stirring device such as a Henschel mixer, a vibration ball mill, a rotary ball mill, and a super mixer. A suitable solvent (eg,
Water, ethanol, isopropyl alcohol, chloroform, Freon R113, hexafluorometa-xylene, etc.)
And then added by spraying or dropping, uniformly dispersing, and then drying at room temperature or by heating. When a perfluoroalkyl group having a carbon number of 8 or more is used as the phosphate compound, the fluidity of the phosphate compound is extremely low, so that fluorocarbon such as Freon R113 and hexafluorometaxylene is used. It is preferable to use it after dissolving it in a system solvent.

The above phosphoric acid to the above spherical polymer powder
The processing amount of the ester compound is preferably 0.01 to 3
0% by weight, more preferably 0.5 to 15% by weight.
If the treatment amount is less than 0.01% by weight, it is difficult to obtain sufficient water / oil repellency, and if it exceeds 30% by weight, the feeling of use tends to deteriorate. Next, the cosmetic of the present invention will be described in detail.

The cosmetic of the present invention contains the above-mentioned cosmetic powder of the present invention, and its content can be appropriately determined according to the kind of the desired cosmetic. 1
９９99% by weight. As the component other than the above-mentioned cosmetic powder of the cosmetic of the present invention, a component appropriately selected from components to be added to ordinary cosmetics can be blended according to the type of the desired cosmetic. These components include, for example, petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, solid and semi-solid oils such as higher fatty acids and higher alcohols; squalane, liquid paraffin, ester oil, diglyceride,
Fluid oils such as triglycerides and silicone oils; fluorinated oils such as perfluoropolyether, perfluorodecalin and perfluorooctane; treated with water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, silicon or fluorine compounds Coloring agents such as inorganic and organic pigments, organic dyes, etc., ethanol, preservatives, antioxidants, pigments, thickeners, pH adjusters, fragrances, ultraviolet absorbers, humectants, blood circulation enhancers, cooling agents, Examples include a sweat, a bactericide, a skin activator, and the like, and can be added within a range that does not impair the purpose of the present invention.

The cosmetic of the present invention can be produced according to a usual method, and can be used for foundation, eye shadow,
It can be applied to makeup cosmetics such as blusher and basic cosmetics such as milky lotion and cream.

[0015]

The cosmetic powder of the present invention is incorporated into cosmetics, prevents makeup collapse due to sebum and the like, improves the elongation of the cosmetic on the skin, and gives the skin a good feel.

[0016]

EXAMPLES Next, the present invention will be described in more detail with reference to examples together with test examples and comparative examples, but the present invention is not limited to these examples. In addition, Examples 1 to 4
Examples of the cosmetic powder of the present invention are shown, and Examples 5 to 11 are shown.
The present invention contains any of the cosmetic powders of Examples 1 to 4.
An example of a light cosmetic is shown. Example 1 A round bottom flask (or kneader) was charged with 150 g of spherical polymethylsilsesquioxane powder (Tospearl 145, manufactured by Toshiba Silicone Co., Ltd.). (C ₈ F ₁₇ CH ₂ CH ₂ O)
₂ P (O) OH 7.5g to isopropyl alcohol 1500g
And heat-dissolved (50 ° C.), and mixed at 60 ° C. for 4 hours. Thereafter, isopropyl alcohol was distilled off under reduced pressure at 40 to 50 ° C. and dried to obtain 155 g of the desired water- and oil-repellent treated powder (the cosmetic powder of the present invention).

Example 2 A spherical nylon powder [S
P-500, manufactured by Toray Industries, Inc.]. To this, 7.5 g of (C ₈ F ₁₇ CH ₂ CH ₂ O) ₂ P (O) OH dissolved in 1500 g of isopropyl alcohol by heating (50 ° C.) is added and mixed at 60 ° C. for 4 hours. Then 40-5
Isopropyl alcohol is distilled off under reduced pressure at 0 ° C. and dried to obtain the desired water- and oil-repellent treated powder (the cosmetic powder of the present invention).
155 g were obtained.

Example 3 150 g of spherical polymethylsilsesquioxane powder (Tospearl 145, manufactured by Toshiba Silicone Co., Ltd.) is placed in a round bottom flask (or kneader). To this, ((C _m F _{2m + 1} C ₂ H
₄ O) _q PO (OH) _3-q ] [m = 6-18 (average 9), 2> q
> 1] 7.5 g of isopropyl alcohol dissolved in 1500 g of heat (50 ° C.) was added.
Mix for hours. Thereafter, isopropyl alcohol was distilled off under reduced pressure at 40 to 50 ° C. and dried to obtain 155 g of the desired water- and oil-repellent treated powder (the cosmetic powder of the present invention).

EXAMPLE 4 Spherical nylon powder [S
P-500, manufactured by Toray Industries, Inc.]. Thereto, _{[(C m F 2m + 1 C} 2 H 4 O) q PO (OH) 3-q ] [m = having 6 to 18
(Average 9) 2>q> 1] 7.5 g was dissolved in 1500 g of isopropyl alcohol by heating (50 ° C.) and mixed at 60 ° C. for 4 hours. Then 40-50
Isopropyl alcohol is distilled off under reduced pressure at ℃ and dried to obtain the desired water- and oil-repellent treated powder (cosmetic powder of the present invention) 1
55 g were obtained.

Comparative Example 1 5 g of methyl hydrogen polysiloxane was added to 50 ml of dichloromethane.
And a spherical polymethylsilsesquioxane powder [Tospearl 145, manufactured by Toshiba Silicone Co., Ltd.] 50
g and stirred at room temperature for 1 hour. Then, dichloromethane was distilled off and dried to obtain 54.5 g of a comparative treated powder.

Comparative Example 2 5 g of methyl hydrogen polysiloxane was added to 50 ml of dichloromethane.
And 50 g of spherical nylon powder [SP-500, manufactured by Toray Industries, Inc.] was added thereto, and the mixture was stirred at room temperature for 1 hour. Then, dichloromethane was distilled off and dried to obtain a powder 5 for comparative treatment.
4.5 g were obtained.

Test Example 1 The treated powders of Examples 1 to 4, the treated powders of Comparative Examples 1 and 2, and the untreated powder were evaluated for water repellency and oil repellency by the following evaluation methods. The results are shown in Table 1 below. (Evaluation method of water repellency) Put 15 ml of water in a 30 ml beaker, float about 0.05 g of each powder on the water, shake the beaker, observe the dispersibility of the powder in water, and evaluate the following. The evaluation was based on criteria.

Evaluation Criteria 0: The powder was immediately dispersed in water. 1: When the beaker was shaken, the powder was almost completely dispersed in water within 30 seconds. 2: When the beaker was shaken, the water became white and cloudy after 1 minute, but powder floating on the water was also observed. 3: When the beaker was shaken, the water became cloudy and white after 1 minute, but there were many powders floating on the water. 4: One minute after the beaker was shaken, the water was not white and cloudy, and no powder dispersed in the water was observed. Even when the beaker was shaken for 5: 1 minutes or more, no powder dispersed in water was observed.

(Evaluation method of oil repellency) Evaluation was made in the same manner as in the evaluation method of water repellency except that squalane was placed in a 30 ml beaker instead of water.

[0025]

[Table 1] Example 5 and Comparative Example 3 (Powder Foundation) Powder foundations having the compositions shown in Table 2 below were produced by the following production methods, respectively, and the makeup durability against sweat and sebum and the feeling of use were evaluated by the following evaluation methods.
The results are shown in Table 3 below.

(Preparation method) The pigment is mixed and pulverized through a pulverizer. This is transferred to a high-speed blender, and the remaining components are heated and mixed, and the resulting mixture is added to the pigment, and further mixed and made uniform. This is treated with a pulverizer, passed through a sieve to adjust the particle size, left for several days, and then compression molded into a container such as a gold plate.

(Evaluation Method) Sensory evaluation was carried out by 10 expert panelists for the cosmetic durability and feeling of use, and the results were shown by the following criteria. ：: 8 or more good. Δ: Four to seven good. ×: Good for less than 4 people.

[0028]

[Table 2]

[0029]

[Table 3] As is clear from Table 3 above, the powder foundation of the present invention using the spherical polymer powder (the treated powder of Example 1) surface-treated with a phosphate compound having a perfluoroalkyl group (Example 5) Was good in use feeling and excellent in cosmetic durability.

Example 6 (Red) A reddish red having the following composition was prepared in the same manner as in Example 5. (Composition) (1) Fluorine compound-treated pigment (the following pigment was treated in the same manner as in Example 1) Kaolin 45.0% by weight Mica 13.0% by weight Titanium oxide 12.0% by weight Iron oxide (red, black, Yellow) 5.0% by weight Red No. 202 2.4% by weight (2) Processed powder of Example 2 7.5% by weight (3) Squalane 7.5% by weight (4) Dimethylpolysiloxane 7.5% by weight (5) Preservative 0.05% by weight (6) Fragrance 0.05% by weight Example 7 (Powder Eye Shadow) A pigment other than titanium mica is first mixed and pulverized, and then titanium mica is mixed. Otherwise in the same manner as in Example 5, a powder eye shadow having the following composition was produced.

(Composition) (1) Fluorine compound-treated pigment (the following pigment was treated in the same manner as in Example 1) Titanium mica 4.9% by weight Sericite 25.3% by weight Mica 24.7% by weight Iron oxide ( (Red, yellow, black) 2.0% by weight Ultramarine 9.8% by weight Dark blue 14.6% by weight (2) Dimethylpolysiloxane 1.9% by weight (3) Squalane 1.9% by weight (4) Vaseline 1.9 % By weight (5) Sorbitan trioleate 1.0% by weight (6) Preservative 1.0% by weight (7) Fragrance Remaining (8) Processed powder of Example 3 10.0% by weight Example 8 (Dual use powder) Foundation) A dual-use powder foundation having the following composition was produced in the same manner as in Example 7.

(Composition) (1) Fluorine compound-treated pigment (the following pigment was treated in the same manner as in Example 1) Mica 20.0% by weight Talc 4.8% by weight Titanium oxide 14.0% by weight Titanium mica 5% by weight Iron oxide (red, yellow, black) 8.2% by weight Zinc oxide 4.5% by weight Aluminum oxide 9.0% by weight Barium sulfate 5.0% by weight Polyethylene powder 1.0% by weight (2) Dimethyl poly Siloxane 4.0% by weight (3) Lanolin 6.0% by weight (4) Vaseline 1.0% by weight (5) Liquid paraffin 1.0% by weight (6) Isopropylimyristate 1.0% by weight (7) Preservative Agent 1.5% by weight (8) Fragrance trace amount (9) Processed powder of Example 4 15.0% by weight Example 9 (two-layer separated sunscreen emulsion) The following components (1) to (3) and (7) ) Is dissolved at room temperature, and the following components are added to the oil phase. The pigment of (8) and the powder of the following component (10) are added and dispersed by a disper. To this, an aqueous phase of the following components (4) to (6) was added with stirring to emulsify, and then a fragrance of the following component (9) was added to produce a two-layer separated sunscreen emulsion having the following composition. .

(Composition) (1) Octamethylcyclotetrasiloxane 25.0% by weight (2) Perfluoropolyether 10.0% by weight (FOMBLIN HC-04 manufactured by Montefros) (3) Dimethyl polysiloxane and polyoxyalkylene Polymer 1.0% by weight (4) Glycerin 2.0% by weight (5) Ethanol 12.0% by weight (6) Purified water Remaining (7) Octyl methoxycinnamate 2.0% by weight (8) Silicone treatment oxidation Zinc (Zinc oxide treated with methyl 7.5% by weight of hydrogen hydrogen polysiloxane) (9) Fragrance trace (10) Treated powder of Example 1 10.0% by weight Example 10 (Sunscreen cream) (10) and (12) were dispersed in the following component (9) by a disper, and a homogeneous mixed solution of the following components (6) to (8) and (11) was stirred with the following component (1), respectively. ) ~ 5) was added to the aqueous component emulsified in, to produce a sunscreen cream having the following composition.

(Composition) (1) Polyoxyethylene (50) hydrogenated castor oil 0.5% by weight (2) Polyoxyethylene (20) Sorbitan 1.0% by weight Palmitate (3) Glycerin 6.0% by weight (4 1,3-butylene glycol 6.0% by weight (5) Purified water 15.5% by weight (6) Squalane 5.0% by weight (7) Jojoba oil 5.0% by weight (8) Octamethylcyclotetrasiloxane 18 0.0% by weight (9) Perfluoropolyether 35.0% by weight (FOMBLIN HC-04 manufactured by Montefloss) (10) Fluorine compound-treated titanium oxide 1.0% by weight (treated in the same manner as in Example 1) ( 11) Octyl methoxycinnamate 2.0% by weight (12) Treated powder of Example 2 5.0% by weight Example 11 (Two-layer separation type liquid foundation) The oil phase of the following components (3) to (6) After dissolving at room temperature,
A pigment of the following component (1) and a powder of the following component (2) are added to the oil phase and dispersed by a disper. To this, an aqueous phase of the following components (7) to (9) was added with stirring to emulsify,
Next, a fragrance of the following component (10) was added, and
A layer-separated liquid foundation was produced.

(Composition) (1) Fluorine compound-treated pigment (the following pigment was treated in the same manner as in Example 1) Titanium oxide 6.0% by weight Sericite 8.0% by weight Iron oxide (red, yellow, black) 1.2% by weight (2) Treated powder of Example 3 8.0% by weight (3) Octamethylcyclotetrasiloxane 20.0% by weight (4) Dimethylpolysiloxane 2.0% by weight (manufactured by Shin-Etsu Chemical Co., Ltd. KF-96A, 6cs) (5) Dimethylpolysiloxane 1.0% by weight Polyoxyalkylene copolymer (6) Perfluoropolyether 10.0% by weight (FOMBLIN HC-04 manufactured by Montefros) (7) Glycerin 2. 0% by weight (8) Ethanol 15.0% by weight (9) Remaining amount of purified water (10) Suitable amount of fragrance All of the cosmetics of the present invention obtained in Examples 6 to 11 are excellent in use feeling and have long-lasting makeup. Was very good.

[0036]

The cosmetic powder of the present invention is excellent in water repellency and oil repellency and excellent in use feeling, particularly excellent in smoothness, and a cosmetic powder containing the cosmetic powder of the present invention. INDUSTRIAL APPLICABILITY The cosmetic of the present invention has good water resistance, sebum resistance, and oil resistance, is excellent in the effect of preventing makeup collapse due to sebum and the like (makeup lasting), has good elongation on the skin, and has a feeling of use, particularly smoothness. It is excellent.

Claims (2)

(57) [Claims] 1. A spherical polymer powder represented by the following chemical formula 1.
Cosmetic powder obtained by surface treatment with polyfluoroalkyl phosphoric acid . Embedded image [C _m F _{2m + 1} C _n H _2n O] _q PO (OH) _3-q (wherein m represents an integer of 1 to 20, n represents an integer of 1 to 5, q Represents the number of 1-3.) 2. A cosmetic comprising the cosmetic powder according to claim 1.