JPH0558841A - Powdery cosmetic - Google Patents

Abstract

PURPOSE:To provide a powdery cosmetic having excellent water and oil repellency, resistance to the degradation of make-up with sebum and satisfying the spreadability, adhesivity and smooth feeling on the skin which are fundamental performances of powdery cosmetic. CONSTITUTION:The objective powdery cosmetic contains (A) 5-80wt.% of water- and oil-repellent flaky powder obtained by the surface--treatment of flaky powder with a phosphoric acid ester containing perfluoroalkyl group and expressed by the general formula [RfCnH2nO]yPO(OM)3-y (Rf is 3-21C straight or branched perfluoroalkyl group or perfluorooxyalkyl group which may have uniform chain length or a mixture of components having various chain lengths; (n) is integer of 1-12; (y) is 1-3; M is H, alkali metal, ammonium or substituted ammonium) and (B) 0.5-50wt.% of monodisperse spherical powder having an average particle diameter of 0.01-2mum.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a powder cosmetic containing a water-repellent / oil-repellent plate-like powder and a monodispersed fine spherical powder, and more specifically, excellent water-repellent / oil-repellent property, which is not easily damaged by makeup. The present invention relates to a powder cosmetic having both excellent adhesion to the skin and spreadability without causing a squeaky feeling and a rough feeling.

[0002]

BACKGROUND OF THE INVENTION Cosmetics containing powder include makeup cosmetics such as foundation, white powder, blusher, eye shadow and eyebrow, body cosmetics such as body powder and baby powder. Is commercially available. In cosmetics containing these powders for cosmetics, the elongation and adhesion on the skin, smoothness, and makeup breakage, especially makeup performance such as sebum breakdown are problems.

On the other hand, in recent years, it has been proposed to treat the powder with a fluorine compound to impart water repellency and oil repellency for the purpose of preventing the makeup from being damaged by sebum (JP-A-55).
-167209, JP 62-250074, JP 1-180811,
U.S. Pat. No. 3632744, etc.). However, these water repellency
The oil-repellent powder has a drawback in that the smoothness in use feels extremely worse than that before the treatment with the fluorine compound.

Therefore, the object of the present invention is to have excellent water repellency and oil repellency, to prevent makeup deterioration against sweat and sebum, and at the same time, to have a basic performance of powder such as good spreadability and adhesion on the skin, and smooth feeling. It is to provide powder cosmetics that satisfy the above requirements.

[0005]

[Means for Solving the Problems] As a result of intensive studies aimed at achieving the above object, the present inventors have obtained a water-repellent / oil-repellent plate obtained by subjecting a plate-like powder to a surface treatment with a specific compound in advance. By using the powdery powder and monodisperse micro-spherical powder with a specific average particle size in combination, the water resistance, sebum resistance and oil resistance are extremely good, and the cosmetic ingredients are less likely to disappear due to sebum or oil content, and the feeling of use is improved. It was found that a powder cosmetic having excellent smoothness and adhesiveness can be obtained.

The present invention has been made based on the above findings, and provides a powder cosmetic containing the following two components (A) and (B). (A) 5 to 80% by weight of a water-repellent / oil-repellent plate-like powder obtained by surface-treating the plate-like powder with a perfluoroalkyl group-containing phosphate represented by the following general formula (I).

[RfC _n H _2n O] _y PO (OM) _3-y (I) (In the formula, Rf represents a perfluoroalkyl group having 3 to 21 carbon atoms or a perfluorooxyalkyl group, which may be linear or It may be branched and may have a single chain length or a mixed chain length, n is an integer of 1 to 12, y is a number of 1 to 3, M is hydrogen. , Alkali metal,
Indicates ammonium or substituted ammonium. (B) Monodispersed spherical powder having an average particle size of 0.01 to 2 μm 0.5 to
50% by weight.

The powder cosmetic of the present invention will be described in detail below. Examples of the plate-like powder used in the component (A) of the present invention include silicic acid, magnesium silicate, talc, sericite, mica, kaolin, silica, mica titanium, bismuth oxychloride, cerium oxide, calcium sulfate, and sulfuric acid. Inorganic powder such as barium, magnesium sulfate, calcium carbonate, magnesium carbonate, chromium oxide, chromium hydroxide,
Examples thereof include N-mono long-chain acyl basic amino acids, organic powders such as zinc monoalkyl phosphate, and the like. In particular, sericite,
Mica, kaolin, talc, silica and the like having a large aspect ratio are preferable.

The plate-like powder preferably has a major axis of 0.5 to 50 μm, more preferably 5 to 20 μm, and a minor axis of 0.5 to 20 μm, more preferably 1 to 1.
The one of 0 μm is used. Specific examples of the phosphoric acid ester represented by the general formula (I) include diheptadecafluorodecylphosphoric acid [(C ₈ F ₁₇ C ₂ H ₄ O) ₂ PO.
(OH)], heptadecafluorodecyl phosphate [C ₈ F
₁₇ C ₂ H ₄ OPO (OH) ₂ ], sesqui form of diheptadecafluorodecylphosphate and heptadecafluorodecylphosphate [(C ₈ F ₁₇ C ₂ H ₄ O) _1.5 PO (OH) _1.5 ].
And the like, and their alkali metal salts, ammonium salts, substituted ammonium salts and the like. Here, the substituted ammonium salt refers to salts of alkanolamines such as monoethanolamine and diethanolamine and basic amino acids.

As the method for treating the above plate-like powder with the above-mentioned phosphoric acid ester, various commonly used steps can be adopted. For example, while mixing the powder in a mixing and stirring device such as a Henschel mixer, a vibrating ball mill, a rotary ball mill, or a super mixer, the phosphate ester having a perfluoroalkyl group is used as it is, or in a suitable solvent (for example, water or ethanol). ,Isopropyl alcohol,
It is dissolved in chloroform, Freon R113 and a mixed solvent thereof, and added by spraying or dropping, and after uniformly dispersing, it is dried at room temperature or by heating. However, if the number of carbon atoms in the perfluoroalkyl group of the phosphoric acid ester is 8 or more, the fluidity of the compound will be significantly reduced, so a fluorine-based solvent such as Freon R113 or hexafluoromethaxylene is preferable.

The amount of phosphate ester having a perfluoroalkyl group treated with respect to the plate-like powder is 0.01 to 30% by weight, preferably 0.5 to 15% by weight. If it is less than 0.01%, sufficient water resistance and oil resistance cannot be obtained. Examples of the monodisperse spherical powder which is the component B of the present invention include metal oxides such as spherical alumina, spherical silica, spherical zirconia, spherical titanium oxide and spherical zinc oxide; polyester, polyethylene, polystyrene, methyl methacrylate resin. , Styrene-acrylic acid copolymer, polypropylene, acrylic beads,
Examples include plastics such as polyolefin and nylon; silica-based composite oxides, silicon resins, aluminum silicate, cellulose and the like. Here, the monodisperse spherical powder means a powder having a true spherical shape and a narrow particle size distribution, and the coefficient of variation (standard deviation of particle diameter / average particle diameter × 100) is 10% or less, particularly 5% or less. I mean one. The monodisperse spherical powder has a volume cumulative average particle diameter of 0.01 to 2 μm, and preferably 0.1 to 1 μm. This spherical powder may be used as it is, but it is particularly preferable to use it after water and oil repellency treatment like the treatment of the plate-like powder described above.

The water repellency of the component (A) used in the present invention
The compounding amount of the oil-repellent plate-like powder is 5 in the powder cosmetic amount of the present invention.
-80% by weight, especially 10-70% by weight are preferred.
The blending amount of the component (B) of the monodisperse fine spherical powder having an average particle diameter of 0.01 to 2 μm is preferably 0.5 to 50% by weight, and particularly preferably 1 to 20% by weight based on the amount of cosmetic powder. The total amount of the components (A) and (B) in the powder cosmetic of the present invention is preferably 6
0 to 95% by weight, particularly preferably 80 to 90% by weight.

In addition to the essential components (A) and (B) described above, the cosmetic composition of the present invention may contain, if necessary, components that are contained in ordinary cosmetic compositions. For example, solid / semi-solid oil components such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids and higher alcohols; liquid oil components such as squalane, liquid paraffin, ester oils, diglycerides, triglycerides, silicone oils; Fluorine-based oil agents such as perfluoropolyether, perfluorodecalin and perfluorooctane; water-soluble and oil-soluble polymers, surfactants, inorganic and organic pigments, inorganic and organic pigments treated with silicon or fluorine compounds, organic dyes, etc. Colorants, ethanol, antiseptics, antioxidants, pigments, thickeners, pH adjusters, fragrances, UV absorbers, moisturizers, blood circulation promoters, antiperspirants, bactericides, skin activating agents, etc. It can be blended within the qualitative and quantitative range that does not impair the purpose and effect of.

The cosmetic of the present invention can be produced by a conventional method, and can be applied to makeup cosmetics such as foundation, eye shadow, blusher, body powder, baby powder and the like.

[0015]

The powder cosmetic of the present invention is excellent in water repellency and oil repellency, and is excellent in feeling of use, particularly smoothness and adhesion, and thus exhibits an excellent effect when used as a powder cosmetic.

[0016]

EXAMPLES The present invention will now be described with reference to Examples and Production Examples.
As will be explained in more detail, the present invention is limited to these examples.
It is not something that will be done. All compounding amounts are% by weight. Production Example 1 150 g of mica was placed in a round bottom flask (or kneader).
Be done. C to this₈F₁₇CH₂CH ₂OP (O) (OH)₂ And (C₈F₁₇CH₂O)₂P
7.5 g of an approximately 1: 1 mixture of (O) OH was added to isopropyl acetate.
Heat-dissolved (50 ° C) in 1500 g of rucor
Is added and mixed at 60 ° C. for 4 hours. Then 40-5
Distill off isopropyl alcohol under reduced pressure at 0 ° C and dry.
Thus, 155 g of water-repellent / oil-repellent titanium oxide was obtained.

Production Example 2 150 g of monodisperse spherical polymethyl methacrylate having a volume cumulative average particle size of 0.4 μm is placed in a round bottom flask (or kneader). In addition to this, ((C _m F _{2m + 1} C ₂ H ₄ O) _1.5 PO (OH)
_1.5 ] [m = 6 to 18, average 9] 7.5 g of isopropyl alcohol which had been heated and dissolved (50 ° C.) was added and mixed at 60 ° C. for 4 hours. Then 40
Isopropyl alcohol was distilled off under reduced pressure at -50 ° C and dried to obtain 155 g of the target water-repellent / oil-repellent spherical polymethylmethacrylate.

Example 1. Powder foundation A powder foundation having the composition shown in Table 1 below is manufactured by the following (manufacturing method), and has makeup retention against sweat and sebum.
The feeling of use was evaluated by the following (evaluation method). The results are shown in Table 2 below. (Production method) Powder components were mixed and pulverized, transferred to a Henschel mixer, and an oil agent and a fragrance were added and mixed to be uniform. This was press-molded on a gold plate to obtain a product.

[0019]

[Table 1] (1) Soken Kagaku MP-2200 (Evaluation method) 10 professional panelists carried out a sensory evaluation of the makeup retention and the feeling of use, and showed the following criteria.

○. ． ． ． ． Eight or more are good. △. ． ． ． ． 4 to 7 people are good. ×. ． ． ． ． Less than 4 people are good.

[0021]

[Table 2] As is clear from Table 2 above, the product of the present invention was a powder foundation having a longer lasting makeup and feeling of use than the comparative product. Example 2. Cheek red The desired cheek red was obtained in the same manner as in Example 1.

Water-repellent / oil-repellent pigment wt% (The following kaolin was mixed afterwards.) Kaolin (processed in the same manner as in Production Example 1) Balance mica 20.0 Titanium oxide 10.0 Red No. 202 2 0.4 Iron oxide (red, black, yellow) 5.0-Polymethylmethacrylate having an average particle size of 0.4 μm 10.0-Squalane 7.5-Dimethylpolysiloxane 7.5-Preservative 0.1-Perfume 0.1. 05 Example 3. Powder eye shadow A pigment other than titanium mica is first mixed and crushed, and then titanium mica is mixed. Others were the same as that of Example 1, and the target powder eye shadow was obtained.

Water-repellent / oil-repellent pigment wt% (The following sericite was mixed later.) Mica titanium 4.9 sericite (processed in the same manner as in Production Example 1) Balance mica 24.7 Iron oxide ( (Red, yellow, black) 2.0 Ultramarine 9.8 Dark blue 14.6 Polymethylmethacrylate with an average particle size of 0.4 μm 10.0 ・ Dimethylpolysiloxane 1.9 ・ Squalane 1.9 ・ Vaseline 1.9 ・ Sorbitan triole Aate 1.0, preservative 1.0, fragrance 0.1 Example 4. Dual-use powder foundation The desired dual-use powder foundation was obtained in the same manner as in Example 1.

Water-repellent / oil-repellent pigment wt% (Mica below was mixed later.) Mica (processed in the same manner as in Example 1) Balance talc 4.8 Titanium oxide 14.0 Titanium mica 3.5 Iron oxide (red, yellow, black) 8.2 Zinc oxide 4.5 Aluminum oxide 10.0 Barium sulfate 5.0 ・ Poly 10.0 with an average particle size of 0.1 μm Methyl methacrylate ・ Dimethylpolysiloxane 4.0 ・ Lanoline 6.0 Vaseline 1.0 Liquid paraffin 1.0 Isopropyrimyristate 1.0 Preservative 1.5 Perfume 0.1 The cosmetics of the present invention obtained in Examples 2 to 4 are all Also, the feeling of use was excellent and the makeup lasting was extremely good.

[0025]

EFFECTS OF THE INVENTION The powder cosmetics of the present invention have excellent water and oil repellency, do not lose makeup against sweat and sebum, and at the same time have good elongation and adhesion on the skin, which are the basic performance of the powder. , Smoothness, etc. are satisfied.

[Procedure amendment]

[Submission date] September 4, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

Water-repellent / oil-repellent plate powder pigment wt% ( mixed powder of the following pigments treated in the same manner as in Production Example 1 ) Kaolin balance Mica 20.0 Titanium oxide 10.0 Red No. 202 2.4 Iron oxide (red, black, yellow) 5.0-Polymethylmethacrylate with an average particle size of 0.4 μm 10.0-Squalane 7.5-Dimethylpolysiloxane 7.5-Preservative 0.1-Perfume 0 .05 Example 3. Powder eye shadow A pigment other than titanium mica is first mixed and crushed, and then titanium mica is mixed. Others were the same as that of Example 1, and the target powder eye shadow was obtained.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

Water-repellent / oil-repellent plate-like powder pigment wt% ( mixed powder similar to that in Example 2 ) Mica titanium 4.9 sericite balance mica 24.7 iron oxide (red, yellow, black) 2. 0 Ultramarine 9.8 Dark blue 14.6 Polymethylmethacrylate with an average particle size of 0.4 μm 10.0-Dimethylpolysiloxane 1.9-Squalane 1.9-Vaseline 1.9-Sorbitan trioleate 1.0-Preservative 1 .0 Perfume 0.1 Example 4. Dual-use powder foundation The desired dual-use powder foundation was obtained in the same manner as in Example 1.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction content]

Water-repellent / oil-repellent plate-like powder pigment wt% ( mixed powder similar to that in Example 2 ) Mica balance talc 4.8 titanium oxide 14.0 mica titanium 3.5 iron oxide (red, yellow, Black) 8.2 Zinc oxide 4.5 Aluminum oxide 10.0 Barium sulfate 5.0 ・ Poly 10.0 with an average particle size of 0.1 μm Methyl methacrylate ・ Dimethyl polysiloxane 4.0 ・ Lanolin 6.0 ・ Vaseline 1. 0-Liquid paraffin 1.0-Isopropyrimyristate 1.0-Preservative 1.5-Perfume 0.1 The cosmetics of the present invention obtained in Examples 2 to 4 all have excellent feeling in use, The makeup lasted extremely well.

Claims (1)

[Claims] 1. A powder cosmetic comprising the following two components (A) and (B). (A) 5 to 80% by weight of a water-repellent / oil-repellent plate-like powder obtained by surface-treating the plate-like powder with a perfluoroalkyl group-containing phosphate represented by the following general formula (I). [RfC _n H _2n O] _y PO (OM) _3-y (I) (In the formula, Rf represents a perfluoroalkyl group having 3 to 21 carbon atoms or a perfluorooxyalkyl group, which may be linear or branched. And may have a single chain length or a mixed chain length, n represents an integer of 1 to 12, y represents a number of 1 to 3, M represents hydrogen or an alkali metal. ,
Indicates ammonium or substituted ammonium. (B) Monodispersed spherical powder having an average particle size of 0.01 to 2 μm 0.5 to
50% by weight.