JPH11180827A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic capable of making unevenness of skin such as pores of the skin, fine wrinkles, etc., inconspicuous, having excellent durability of its effects, improved spread on the skin, good luster and excellent feeling in use. SOLUTION: This cosmetic comprises (A) 1-95 wt.% of powder having >2 μm and <=30 μm volume average particle diameter and <=2 refractive index, (B) 1-95 wt.% of organic powder having a minor axis of 1/1-1/100 major axis and thickness of <=1/2 major axis and (C) 11-95 wt.% of an oil component in >=5 wt.% of the total of the components A and B mixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to make skin irregularities such as pores and fine wrinkles inconspicuous, has a long lasting effect, and has good sticking and spreading on the skin, and provides a feeling of use. Regarding good cosmetics.

[0002]

2. Description of the Related Art Conventionally, attempts have been made to utilize the optical properties of extenders for the purpose of obtaining cosmetics that make skin unevenness such as wrinkles, fine wrinkles, pores and roughness less visible. JP-A-61-69708, JP-A-61-25
7908, JP-A-4-364105, JP-A-3-5
412, JP-A-3-181411, JP-A-4-36
No. 4105, JP-A-6-279235, JP-A-7-2
No. 77925, JP-A-7-316014, JP-A-8-
73316, JP-A-8-73317, JP-A-8-2
67135, JP-A-8-217636, etc.).

[0003] However, these cosmetics have a low effect of making the unevenness of the skin inconspicuous; the body pigments do not spread to the inside of large wrinkles and cannot hide the wrinkles; the effect of making the unevenness inconspicuous does not last for a long time. When the foundation is applied on top, the effect of making the irregularities inconspicuous disappears or the finish becomes dirty; there is a problem that the extender is accumulated in the wrinkles and conversely, the wrinkles become conspicuous. It was not satisfactory enough.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make the skin unevenness such as pores and fine wrinkles less noticeable, to have excellent effect continuity, and to extend and stick on the skin. The present invention is to provide a cosmetic which has a good feel and a good feeling upon use.

[0005]

Under such circumstances, the present inventors have conducted intensive studies and as a result, have used a powder having a specific particle size and refractive index in combination with an organic powder having a specific shape. At the same time, if an oil is further added, not only the skin irregularities such as pores and fine wrinkles can be made inconspicuous, but also the effect is long lasting, and the sticking and spreading on the skin are good and the usability is good. The present inventors have found that a perfect cosmetic can be obtained and completed the present invention.

That is, the present invention provides the following component (A):
(B) and (C): (A) powder having a volume average particle size of more than 2 μm and 30 μm or less and a refractive index of 2 or less 1 to 95% by weight; Contains 1 to 95% by weight of an organic powder having a thickness of 1/100 or less and less than or equal to 1/2 of the major axis, (C) 11 to 95% by weight of an oil component, and is composed of components (A) and (B). The sum of the quantities is 5
The present invention provides a cosmetic that is not less than% by weight.

In the present invention, unless otherwise specified, the volume average particle diameter indicates an average value of the diameters of spheres corresponding to the volume of the measured particles.
For powder having a particle size of 1 μm or less, a value obtained by using a laser scattering method using ethanol as a dispersion medium was used, and a refractive index was obtained by a Larsen oil immersion method as follows. When a powder sample is placed in a liquid and exposed to light, a Becke line is observed. However, when the refractive index of the liquid and that of the sample match, the Becke line disappears and becomes transparent. Therefore, the refractive index of the liquid was changed by changing the composition of the mixed solution, and the refractive index of the liquid where the Becke line disappeared was measured with an Abbe refractometer to obtain the refractive index of the sample. In addition, the shape of the powder (major axis, minor axis, thickness)
The shape of each of the 300 powder particles was measured using a transmission electron microscope photograph, and the average value was used.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The powder of the component (A) used in the present invention is not particularly limited as long as it has a volume average particle diameter of more than 2 μm and 30 μm or less and a refractive index of 2 or less. Any of inorganic powder and organic powder may be used, and the shape thereof is preferably spherical, elliptical, granular, or the like from the viewpoint of the effect of making unevenness less noticeable and the feeling of use. Examples of such powders include inorganic powders such as silica, alumina, barium sulfate, aluminum hydroxide, calcium carbonate, magnesium silicate, magnesium carbonate, and aluminum silicate; polyamide resins, polyethylene resins, polypropylene resins, and methyl methacrylate resins. And organic powders such as a cellulose resin, a polystyrene resin, a copolymer of styrene and acrylic acid, and a silicone resin.
Among these, as the inorganic powder, those having a low refractive index such as silica and barium sulfate are preferable because a more natural finish can be obtained. In addition, these powders may be coated with a coloring pigment, a dye, a dye, a metal ion, or the like by an ordinary method, and may be subjected to an encapsulation treatment and colored.

These powders need to have a volume average particle diameter of more than 2 μm and 30 μm or less, preferably 2 to 15 μm, particularly preferably 2 to 12 μm. When the thickness is 2 μm or less, the feeling of use is poor, and the effect of making the pores and small wrinkles less noticeable is reduced. When the thickness exceeds 30 μm, the effect of making the pores and small wrinkles less noticeable is also reduced,
The feeling of use also worsens.

[0010] The component (A) is particularly effective in blurring when applied to the skin, and thereby has an excellent effect of making irregularities such as pores and fine wrinkles inconspicuous. 2.0 or less, preferably 1.3 to 2.0,
Particularly preferably, it is required to be 1.4 to 1.8. If it exceeds 2.0, these effects cannot be obtained.

The organic powder of the component (B) used in the present invention has a minor axis of 1/1 to 1/100 of the major axis and a thickness of 以下 or less of the major axis, other than the component (A). The material is not particularly limited as long as the material is plate-like or flat. Specifically, for example, sodium zinc cetyl phosphate,
Alkyl phosphate polyvalent metal salts such as zinc lauryl phosphate and calcium lauryl phosphate (JP-A-60-248605)
JP-A-61-229889 and JP-A-3-178.
9-87); N-lauroyl-β-alanine calcium, N-lauroyl-β-alanine calcium
Acylated amino acid polyvalent metal salts such as zinc lauroyl-β-alanine and calcium N-lauroylaminohexanoate (produced according to the method described in JP-A-4-5216); calcium N-lauroyl-taurine;
Amidosulfonic acid polyvalent metal salts such as N-palmitoyl-taurine calcium (produced according to the method described in JP-A-3-294210); N ₁ -lauroyl-L-lysine, N ₁ -palmitoyl lysine, etc. N-acyl lysine (manufactured according to the method described in JP-A-60-67406, commercially available from Ajinomoto Co., Inc.
Α-amino fatty acids such as α-aminocaprylic acid and α-aminolauric acid (JP-A-62-4)
No. 211).
Flat or plate-like resin powders such as polyethylene, polypropylene, nylon, polymethyl methacrylate, polystyrene, divinylbenzene / styrene copolymer, and tetrafluoroethylene (JP-A-57-78466, JP-A-62
190112 and JP-A-62-104706).

In these organic powders, the minor axis is 1/1 of the major axis.
To 1/100, preferably 1/1 to 1/50, particularly preferably 1/1 to 1/10, and the thickness is not more than 1/2 of the major axis, preferably 1/2 to 1/100, particularly preferably. Is 1
/ 2 to 1/50. Outside of these ranges, it is not preferable in terms of usability. The powder has a major axis of 0.1 to 100 μm, especially 1 to 50 μm, and a minor axis of 0.1 to 0.1 μm.
-100 μm, especially 1-50 μm, thickness 0.05-5
It is preferably 0 μm, particularly preferably 0.05 to 10 μm.

These organic powders have a volume average particle size of 0.1.
1 to 100 μm, especially 1 to 50 μm, further 1 to 20 μm
Is preferred in terms of spreading and sticking to the skin and feeling of use.

In the cosmetic of the present invention, the components (A) and (B) can be used alone or in combination of two or more. The component (A) is contained in the entire composition in an amount of 1 to 95% by weight (hereinafter, simply referred to as%), preferably 5 to 70%, particularly preferably 10 to 50%. If it is less than 1%, it is not preferable in terms of finish, and if it exceeds 95%, it is not preferable in terms of usability. The component (B) contains 1 to 9 in the total composition.
5%, preferably 5 to 70%, particularly preferably 10 to 5
0% is blended. If it is less than 1%, it is not preferable in terms of usability, and if it exceeds 95%, it is not preferable in terms of finish. Furthermore, the total amount of the components (A) and (B) is 5% or more, preferably 10 to 90%, particularly preferably 30 to 70% of the total composition. If the total amount of the components (A) and (B) is less than 5%, the effect of making concavities and convexities such as wrinkles, fine lines, pores, and roughness of the texture, and a good feeling in use cannot be sufficiently obtained.

Further, the fine powder of the component (A) and the component (B)
The organic powder of the treating agent used in ordinary cosmetic powders, for example, silicone, as long as the effects of the present invention are not impaired.
It is also possible to use those which have been surface-treated with metal soap, lecithin, amino acids, collagen, fluorine compounds and the like.

In the cosmetic of the present invention, component (A) is silica, barium sulfate, polyamide resin, methyl methacrylate resin or silicone resin, and component (B) is used.
As a combination of an alkyl phosphate polyvalent metal salt, an amylated amino acid polyvalent metal salt, and N-acyl lysine,
It is particularly preferable to obtain a natural finish and a good feel.

In the cosmetic of the present invention, powders other than the above-mentioned essential components can be appropriately compounded within a range not to impair the effects of the present invention. Such powders include, for example, talc, mica, sericite, kaolin, bentonite, vermiculite, hectorite, zeolite, silica, alumina, heidilite, aluminum silicate, magnesium silicate, calcium silicate, aluminum magnesium silicate, carbonate Inorganic pigments such as magnesium, calcium carbonate, barium sulfate, hydroxyapatite, boron nitride, carbon fluoride, mica treated with barium sulfate; nylon powder, polymethyl methacrylate powder, polyethylene powder, polystyrene powder, benzoguanamine powder, fluororesin powder, poly Polymer powders such as methylsilsesquioxane powder; organic-inorganic composite powders such as zirconium oxide-coated nylon powder and titanium oxide-coated nylon powder; spherical polymethyl methacrylate-my Spherical-plate-like powder composite pigments such as composite powder, spherical polymethyl methacrylate-sericite composite powder, spherical polymethyl methacrylate-talc composite powder, spherical silica-mica composite powder; titanium dioxide, zinc oxide, Inorganic white pigments such as zirconium oxide; inorganic red pigments such as iron oxide (iron oxide), iron titanate and calamine; inorganic brown pigments such as γ-iron oxide; inorganic yellow pigments such as yellow iron oxide and loess; Inorganic black pigments such as iron oxide, carbon black, and lower titanium oxide; inorganic purple pigments such as mango violet and cobalt violet;
Inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; inorganic blue pigments such as ultramarine and navy blue; titanium oxide coated mica, bismuth oxychloride, titanium oxide coated bismuth oxychloride, titanium oxide coated talc, and colored oxide Pearl pigments such as titanium coated mica and fish scale foil; metal powder pigments such as aluminum powder and copper powder; organic pigments such as cellulose and silk; metal soaps such as zinc stearate;
Red No. 202, Red No. 203, Red No. 204, Red No. 20
5, Red 213, Red 219, Red 220, Red 226, Red 228, Red 405, Orange 203
No. 204, Yellow No. 205, Yellow No. 401, Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505
No. Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202
No. 203, green No. 3 and blue No. 1 and lake pigments thereof such as zirconium, barium and aluminum; natural dyes such as chlorophyll and β-carotene, fine titanium oxide, fine zinc oxide and flaky oxide Ultraviolet protection powders such as zinc, fine particle zirconium oxide and fine particle cerium oxide.

These powders can be used as they are, but may be surface-treated with an inorganic treating agent such as silica treatment, alumina treatment, silica-alumina treatment, titania treatment, barium sulfate treatment and / or silicone treatment. Metal soap treatment, acylglutamic acid, amino acid treatment such as N-mono long chain acyl basic amino acid, lecithin treatment, collagen treatment, polyethylene treatment, polyacrylic acid treatment,
Powders which have been surface-treated with an organic treating agent such as an alkyl phosphate ester treatment, an alkyl phosphate metal salt treatment, or a fluorine treatment such as fluoroalkyl phosphoric acid can also be used.

The oil component (C) used in the present invention is not particularly limited as long as it is used in ordinary cosmetics. Examples thereof include liquid paraffin, squalane, castor oil, olive oil, jojoba oil, macadamia nut oil, Mink oil, turtle oil, almond oil, safflower oil, avocado oil, stearic acid, oleic acid, lauric acid, myristic acid, glyceryl diisostearate, glyceryl triisostearate, trimethylolpropane-2-
Ethyl isostearate, glyceryl-tri-2-ethylhexanoate, isopropyl myristate, cetyl-2-ethylhexanoate, 2-heptylundecyl palmitate, methylpolysiloxane, methylphenylpolysiloxane, polybutene, diiso Stearyl malate, lanolin, cetanol, stearyl alcohol, oleyl alcohol, lauryl alcohol, polydimethylsiloxane, alkyl-modified silicone, volatile linear silicone oil, volatile cyclic silicone oil, volatile hydrocarbon oil, perfluoropolyether, fluorine Fluorinated oils such as modified silicones; and polyhydric alcohols such as glycerin, propylene glycol, polyethylene glycol, dipropylene glycol, sorbitol, and 1,3-butylene glycol. Call, oil-soluble plant extracts, egg yolk lecithin, phospholipids such as soybean lecithin, sphingolipids, ceramides, ceramide-like structure material (JP 62-2
No. 28048), cholesterol, cholesteryl ester, cholesteryl isostearate and other intercellular lipids, as well as synthetic polymers, fermentation metabolites, biological extracts, steroid compounds, proteins, collagen, and humectants such as chitin.

The oil component (C) can be used singly or in combination of two or more. It is preferably used in an amount of 11 to 95% by weight, more preferably 11 to 80% by weight, and more preferably 11 to 95% by weight in the whole composition. It is preferable to mix 〜60% by weight, since no glare due to oil is generated.

The cosmetic of the present invention includes, in addition to the above components, components used in ordinary cosmetics, such as solid fats, semi-solid oils, surfactants, water-soluble and oil-soluble polymers, ethanol, humectants, preservatives Agents, antioxidants, pigments, thickeners, pH adjusters, fragrances, ultraviolet absorbers, blood circulation promoters, cooling agents, antiperspirants, bactericides, skin activators, drugs, polymer latex, water, etc. It can be appropriately compounded within a range that does not impair the effects of the present invention.

Examples of the solid fat or semi-solid oil include petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, mokurou, polyethylene wax, solid paraffin wax and the like.

Examples of the surfactant include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, and polyoxyethylene. Nonionic surfactants such as hydrogenated castor oil and polyoxyethylene sorbitol fatty acid esters; anionic surfactants represented by fatty acid soaps such as sodium stearate and triethanolamine palmitate; and cationic surfactants; Surfactants commonly used in cosmetics such as amphoteric surfactants may be mentioned.

Examples of the water-soluble polymer include carboxymethylcellulose, methylcellulose, hydroxymethylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, trangant gum, carrageenan, locust bean gum, dextrin, dextrin fatty acid ester, carboxyvinyl polymer, xanthan gum, gelatin , Sodium alginate, gum arabic, and other water-soluble polymers commonly used in cosmetics.

Examples of the humectant include sorbitol, xylitol, glycerin, maltitol, propylene glycol, 1,3-butylene glycol, 1,4
-Moisturizers commonly used in cosmetics, such as butylene glycol, sodium pyrrolidonecarboxylate, lactic acid, sodium lactate and polyethylene glycol.

Examples of the preservative include preservatives commonly used in cosmetics, such as alkyl paraoxybenzoate, sodium benzoate and potassium sorbate.

The above-mentioned drugs include, for example, vitamins,
Drugs commonly used in cosmetics such as crude drugs, anti-inflammatory agents, bactericides and the like can be mentioned.

As the above-mentioned ultraviolet absorber, for example, it is widely used in cosmetics such as a paraaminobenzoic acid-based ultraviolet absorber, an anthranil-based ultraviolet absorber, a salicylic acid-based ultraviolet absorber, a cinnamic acid-based ultraviolet absorber, and a benzophenone-based ultraviolet absorber. Ultraviolet absorbers.

The cosmetic of the present invention can be produced according to a usual method, and for example, it can be a makeup cosmetic such as foundation, blusher, eyeshadow and the like.

[0030]

EFFECT OF THE INVENTION The cosmetics of the present invention can make skin irregularities such as pores and fine wrinkles inconspicuous, have excellent effect persistence, and have good spread and stickiness on the skin.
It gives a moist feeling and is excellent in usability.

[0031]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.
Incidentally, the volume average particle size shown in the examples, all,
Using SK laser micron sizer manufactured by Seishin Enterprise, using ethanol as a dispersion medium, a powder size of 1 μm or more was determined from a particle size distribution obtained by a laser diffraction method and a powder size of 1 μm or less by a laser scattering method.

Example 1 Liquid partial-use foundations having the compositions shown in Tables 1 and 2 were produced, and the finished product, the durability of the cosmetic effect, and the feeling upon use were evaluated. Table 1 shows the results.

(Preparation method) The powder components are mixed using an analytical pulverizer (manufactured by Nippon Rikagaku Kikai), oil is added thereto, and further mixed using a high-speed stirrer (manufactured by Tokushu Kika Kogyo). The desired foundation was obtained.

(Evaluation Method) Finish: The finish when the foundation was applied to the face was visually evaluated by a specialized panelist according to the following criteria. A: Wrinkles, fine lines, pores, and roughness of the texture are almost inconspicuous. ；: Wrinkles, fine lines, pores, and roughness are not so noticeable. Δ: Wrinkles, fine lines, pores, and roughness of the texture are conspicuous. ×: Wrinkles, fine lines, pores, and roughness are very conspicuous.

Persistence of cosmetic effect: The sustainability of the cosmetic effect when the foundation was applied to the face was visually evaluated by a specialized panelist according to the following criteria. ；: The effect lasts 2 hours after application. ×: The effect disappeared 2 hours after application.

Usability: A professional paneler applied the foundation to the face with a sponge, and the usability at that time was evaluated according to the following criteria. (Nobi) ◎; The foundation has very good extension. ○: The foundation has good extension. Δ: The foundation is slightly spread. ×: The foundation is poorly spread.

(Appearance) ；: The foundation adherence is very good. ○: Good foundation. Δ: Foundation is slightly poor. ×: Poor foundation was observed.

(Moist feeling) A: Very moist feeling. ○: There is a moist feeling. Δ: Moist feeling is not so good. ×: no moist feeling.

[0039]

[Table 1]

Example 2 A solid part-use foundation having the composition shown in Table 2 was produced, and the finished product, the persistence of the cosmetic effect and the feeling of use when used were evaluated in the same manner as in Example 1. Table 2 shows the results.

(Preparation method) The powder components were mixed using an analytical pulverizer (manufactured by Nippon Rikagaku Kikai Co., Ltd.), an oil was added and mixed, and then the solid oil component was added under heating (about 100 ° C.). The mixture was mixed and cooled with ice to obtain a desired foundation.

[0042]

[Table 2]

Example 3 A liquid foundation was prepared in the same manner as in Example 1 except that the powders of components (1) to (6) of Example 1 were used and the respective silicone-treated powders were used. In each case, the unevenness of the skin could be hardly seen, the effect was maintained for a long time, and a good feeling of use was obtained when applied to the skin.

Example 4 In place of the powders of the components (1) to (6) in Example 1, each of them was prepared according to the method described in US Pat. No. 3,632,744.
Diheptadecafluorodecyl phosphate [C ₈ F ₁₇ C ₂ H
₄ O) ₂ P (＝ O) (OH)] using a powder treated with a fluorine compound, and further replacing perfluoroalkyl ether (FOMBL) in place of the methylpolysiloxane of the component (7).
IN HC / 04, manufactured by Ausimont Co., Ltd.), and a liquid foundation was produced in the same manner as in Example 1. In each of the obtained foundations, unevenness of the skin could be hardly seen, and the effect was maintained for a long time. However, when applied to the skin, a good feeling of use was obtained.

Example 5 A liquid foundation was produced in the same manner as in Example 2 except that the silicone-treated powders were used instead of the powders of the components (1) to (5) of Example 2, and the resulting foundation was obtained. In each case, the unevenness of the skin could be hardly seen, the effect was maintained for a long time, and a good feeling of use was obtained when applied to the skin.

Example 6 In place of the powders of the components (1) to (5) in Example 2, each of them was prepared according to the method described in US Pat. No. 3,632,744.
Di heptadecafluorodecyl phosphoric acid _{[(C 8 F 1 7 C 2} H 4
O) ₂ P (＝ O) (OH)], and using a powder treated with a fluorine compound, and further replacing perfluoroalkyl ether (FOMBL) in place of the methylpolysiloxane of the component (6).
IN HC / 04, manufactured by Ausimont Co., Ltd.), and a liquid foundation was produced in the same manner as in Example 2. In each of the obtained foundations, the unevenness of the skin could be hardly seen, and the effect was maintained for a long time. However, when applied to the skin, a good feeling of use was obtained.

Claims (3)

[Claims] 1. The following components (A), (B) and (C): (A) a powder having a volume average particle diameter of more than 2 μm and not more than 30 μm and a refractive index of not more than 2; (B) 1 to 95% by weight of an organic powder having a minor axis of 1/1 to 1/100 of the major axis and a thickness of 1/2 or less of the major axis, and (C) an oil of 11 to 95% by weight. , The total amount of the components (A) and (B) is 5
Cosmetics that are not less than wt% 2. The cosmetic according to claim 1, wherein the powder of the component (A) is spherical, elliptical or granular. 3. The organic powder of component (B) has a volume average particle size of more than 0.1 μm and not more than 100 μm.
The cosmetic described.