JPH09235218A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic excellent in ageing stability, touch and usability by adding three to five kinds of specific components to three components comprising a silicone oil, an oily component and water. SOLUTION: This cosmetic comprises (a) a silicone oil (5-30wt.%), (b) a polyoxyalkylene-modified organopolysiloxane surfactant having a HLB value of 3-13 (1-30wt.%), (c) a nonionic surfactant having a IOB value of <=45 degree (0.01-10.00wt.%), (d) an inorganic powdery material (1-40wt.%), (e) an oily component (0.01-20.00wt.%) and (f) water (1-70wt.%). A lower alcohol and/or a vegetable oil (0.001-20wt.%) are preferably further added to the system. The component (d) is preferably zinc oxide-encapsulated silica having a particle diameter of 0.01-10μm, superfine titanium dioxide having a particle diameter of 0.001-0.10μm, etc. The vegetable oil is preferably an oil extracted from a plant such as Scutellaria balcalensis, Lithospermum, Matricaria chamomilla, Gentiana lutea, Phellodendron amurense, aloe or Glycyrrhiza glabra.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic composition which is excellent in stability over time and is excellent in usability and usability.

[0002]

2. Description of the Related Art Cosmetics using silicone oil have been used as sunscreen cosmetics, makeup cosmetics, hair cosmetics, etc. because of their lightness and refreshing feel. However, the silicone oil, the oily component, and the three components of water have a problem of extremely poor compatibility. Therefore, as an attempt to improve such compatibility, blending a polyether-modified silicone has been carried out as disclosed in JP-A-7-100358.

However, this method has a problem in that the silicone feels strongly, and even if alcohol is blended, it is still not well compatible with the skin when applied to the skin.

Therefore, in order to improve the feel to the skin, for example, Japanese Patent Laid-Open No. 7-215817 proposes a method of adding an inorganic powder. Further, JP-A No. 7-165529 and JP-A No. 7-309714 disclose methods of adding a nonionic surfactant. Furthermore, JP-A-7-309714
In the issue, it is proposed to add a silicone resin.

[0005]

However, when the inorganic powder is added to improve the feel, there is a problem that the feel that the inorganic powder is rough on the skin cannot be avoided.
In addition, when a nonionic surfactant is added, the characteristic is that polyoxyethylene groups occupy 50%.
The value (the tangent of the trigonometric function of the ratio of inorganic value / organic value) was 45 degrees or more, and there was still a problem in stability when an oily component having a low IOB value and being close to non-polarity was blended. Furthermore, when a silicone resin is blended, there is a problem that the feel of the silicone resin appears.

As described above, conventionally, there is a cosmetic composition containing three components of silicone oil, an oily component and water, which is excellent in stability over time and has excellent feeling and usability. I didn't get it.

Therefore, an object of the present invention is to provide, in the above-mentioned three-component blended cosmetic composition, a cosmetic composition which suppresses the feeling of slippage due to silicone and the roughness of the inorganic powder and is excellent in stability over time. It is in.

[0008]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have found the following (a) to
It was found that the above object can be achieved by blending the component (f), and the present invention has been completed.

That is, the cosmetic composition of the present invention comprises (a) a polyoxyalkylene-modified organopolysiloxane surfactant 1 having a silicone oil content of 5 to 30% by weight and (b) an HLB value of 3 to 13.
-30% by weight, (c) 0.01-10.00% by weight of a nonionic surfactant having an IOB value of 45 degrees or less, and (d) 1-40% by weight of inorganic powder.
%, (E) 0.01 to 20.00% by weight of oily component, and (f) water 1 to
It is characterized by being mixed with 70% by weight.

A lower alcohol is preferably added to the cosmetic of the present invention.

The inorganic powder (d) is preferably (I) silica containing zinc oxide and having a particle size of 0.01 to 10 μm, and (II) ultrafine titanium oxide having a particle size of 0.001 to 0.10 μm. (III) One or more selected from the group consisting of plate-shaped talc, mica and / or sericite to which ultrafine titanium oxide having a particle diameter of 0.001 to 0.10 μm is attached.

Furthermore, the cosmetic of the present invention preferably contains 0.001 to 20% by weight of a plant extract.

[0013] Furthermore, the plant extract is preferably eugon, shikon, chamomile, gentian, psyllium, aloe, licorice, ginger ginger, touki, senkyu, peony, carrot, horse chestnut, salvia,
An extract extracted from one or two or more plants selected from the group consisting of shea.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Each component used in the cosmetic of the present invention will be specifically described below. First, the silicone oil (a) is not particularly limited, but specifically, octamethyltrisiloxane, decamethyltetrasiloxane, methylpolysiloxane, and a viscosity of 10,000-
Dimethyl silicone oil such as highly polymerized methyl polysiloxane of 1000000 cps; Cyclic silicon such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, methylcyclopolysiloxane; methylphenylpolysiloxane,
Methyl hydrogen polysiloxane etc. are mentioned.
In the cosmetic of the present invention, it is preferable to use a mixture of two or more kinds of such silicone oils.

In the cosmetic of the present invention, the amount of the above-mentioned (a) silicone oil is 5 to 30% by weight, preferably
It is 10 to 20% by weight. When the content is less than 5% by weight, the spread to the skin is deteriorated by touch, while when it exceeds 30% by weight, the stability of the preparation is deteriorated.

(B) The polyoxyalkylene-modified organopolysiloxane-based surfactant has the following general formula (A): (In the formula, R ₁ represents a hydrogen atom, an acyl group, and 1 to 4 carbon atoms.
Is a group selected from the group consisting of alkyl groups of
5 to 50, b is 0 to 50, m is 30 to 700, and n is an integer of 1 to 10), and an HLB value of 3 to 15 is a polyoxyalkylene-modified organopolysiloxane-based surfactant, The HLB value is preferably 5 to 10.

In the cosmetic of the present invention, the amount of the surfactant (b) compounded is 1 to 30% by weight, preferably 2 to 10% by weight. If the amount is less than 1% by weight, the stability of the preparation will be poor, while if it exceeds 30% by weight, a sticky feeling is unavoidable.

(C) The nonionic surfactant having an IOB value of 45 degrees or less is not particularly limited as long as the IOB value is 45 degrees or less, but the IOB value is preferably 40 degrees or less. Specifically, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene fatty acid ester, sorbitan fatty acid ester,
Examples thereof include polyoxyethylene sorbitan fatty acid ester, fatty acid monoglyceride, sucrose fatty acid ester, and higher fatty acid alkanolamide. A polyoxyethylene alkyl ether is preferable, and a particularly preferable alkyl group is a tridecyl group, a hexyldecyl group, an octyldodecyl group, or a decylpentadecyl group.

In the cosmetic composition of the present invention, the content of the surfactant (c) is 0.01 to 10.00% by weight, preferably 0.1.
It is 1 to 2.0% by weight. If the blending amount is less than 0.01% by weight, the oily components are easily separated and unstable, while 10.00% by weight.
If it exceeds the range, it feels sticky and is not suitable as a cosmetic.

In the cosmetic of the present invention, a nonionic surfactant having an IOB value of more than 45 degrees is blended, or a cationic surfactant or anionic surfactant is used, as long as stability and feel are not impaired. There is no problem in compounding the agent.

The inorganic powder (d) is not particularly limited, and any inorganic powder may be blended as long as the stability and the feel are not impaired. However, it is preferable to use zinc oxide containing 0.01 to 10 μm silica and a particle size of 0.001 to 0.1.
0 μm, preferably 0.010 to 0.10 μm ultrafine titanium oxide, plate talc to which ultrafine titanium oxide having a particle size 0.001 to 0.10 μm adheres, plate mica to which ultrafine titanium oxide adheres, ultrafine titanium oxide. One or more kinds of the adhered plate-like sericite are mixed. Further, it is particularly preferable that the surface of the inorganic powder is treated with methylpolysiloxane, methylhydrogenpolysiloxane, or the like.

In the cosmetic of the present invention, the blending amount of the inorganic powder (d) is 1 to 40% by weight, preferably 5 to 20% by weight, from the viewpoint of stability and feel.

Examples of the (e) oil component include capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, 12-hydroxystearic acid, linoleic acid, oleic acid, linoleic acid and arachidone. Acids, higher fatty acids such as eicosapentaenoic acid, liquid paraffin, ozokerite, pristane, ceresin,
Hydrocarbons such as petrolatum and microcrystalline wax, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyldecyl octanoate, lactic acid Cetyl, myristyl lactate, lanolin lactate, isocetyl stearate, isocetyl isostearate, cholesteryl 12-hydroxystearate, ethylene glycol di-2-ethylhexylate,
Dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, Neopentyl glycol dicaprate, Diisostearyl malate, Di-2
Glycerin heptyl undecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylolpropane triisostearate, pentaneerythritol tetra-2-ethylhexylate, glyceryl tri-2-ethylhexylate, cetyl 2-ethylhexylate, palmitate-2 -Ethylhexyl, glyceryl trimyristate, glyceryl trioctanoate, glyceryl triisopalmitate, castor oil fatty acid methyl ester, oleyl oleate, 2-heptylundecyl palmitate, diisobutyl adipate, di-2-heptylundecyl adipate , Ethyl laurate, di-2 sebacate
-Ethylhexyl, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, ester such as diisopropyl sebacate, capryl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, oleyl alcohol, Cetostearyl alcohol, monostearyl glyceryl ether (batyl alcohol), 2-decyltetradecanol, 2-
Hexyldecanol, 2-hexyldecanol, 2-
Higher alcohols such as octyldodecanol, lanolin alcohol, cholesterol, phytosterol, isostearyl alcohol, avocado oil, camellia oil, macadamia nut oil, corn oil, olive oil, evening primrose oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil,
Southern oil, castor oil, hydrogenated castor oil, linseed oil, safflower oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, rice bran oil, cinnamon oil, jojoba oil, germ oil, almond oil,
Cocoa butter, coconut oil, horse fat, shea butter, hardened coconut oil, turtle oil, mink oil, squalene, squalane, orange laffy oil, beef tallow, mutton fat, pork fat, mokuro, whale fat, lanolin, lanolin alcohol, hydrogenated Lanolin, lanolin acetate, liquid lanolin, lanolin fatty acid isopropyl, lanolin fatty acid isostearyl, lanolin fatty acid cholesteryl, reduced lanolin, jojoba wax, hard lanolin, shellac wax, jojoba alcohol and other animal and vegetable oils, Red No. 225,
Oil-soluble dyes such as red 218, daidai 201, green 202, purple 201, mica titanium, red iron oxide treated mica titanium,
Pigments such as yellow iron oxide treated mica titanium, black iron oxide treated mica titanium, iron oxide / yellow iron oxide treated mica titanium, iron oxide / black iron oxide treated mica titanium, turquoise treated mica titanium, carmine treated mica titanium, etc., paramethoxy silica 2-ethylhexyl cinnamate, benzophenone, 2-hydroxy-4-methoxybenzophenone, 2-ethylhexyl paradimethylaminobenzoate, 4- (3,4-dimethoxyphenylmethylene) -2,
5-Dioxoimidazolidine-1-propionic acid 2-ethylhexyl ester, 2,4,6-trianilino-p- (carbo-
2'-ethylhexyl-1-oxy) 1,3,5-triazine, 4
UV absorbers such as -tert-butyl-4'-methoxy-benzoylmethane, furanone derivatives, tocopherols, tocopherol acetate, vitamin A, vitamin A derivatives, ergocalciferol, oil-soluble arnica extract, oil-soluble sardine extract, cholesterol, cholesterol Examples include oil-soluble active ingredients such as derivatives.

In the cosmetic of the present invention, the amount of the oily component (e) is 0.01 to 20.00% by weight, preferably 0.1.
~ 5.0% by weight. If the blending amount is less than 0.01% by weight, the spread of feel or moist feeling cannot be obtained.
If it exceeds 0.00% by weight, the oily components are easily separated, and a sticky feeling is produced.

In the cosmetic of the present invention, (f)
Water is added in an amount of 1.0 to 70% by weight, preferably 10 to 60% by weight.
If the content of water is less than 1.0% by weight, the product feels sticky to the touch and is not suitable as a cosmetic, whereas if it exceeds 70% by weight, the stability over time deteriorates.

In addition to the above components (a) to (f), it is preferable that the cosmetic of the present invention contains a lower alcohol.
The lower alcohol is not particularly limited, but methanol, ethanol, i-propanol, n-propanol, t-butanol, s-butanol and the like are preferably used. In particular, ethanol and i-propanol are preferable, and the compounding amount is not particularly limited as long as the stability of the preparation is not deteriorated, but 1 to 10% by weight is preferable from the viewpoint of feeling.

The cosmetic of the present invention preferably contains a plant extract. The plant extract is not particularly limited to oil-soluble, water-soluble or extraction method as long as the texture and stability of the blended cosmetic can be improved. However, it is preferable to use an extract extracted from one or two or more kinds selected from sardines, shikon, chamomile, gentian, psyllium, aloe, licorice, ginger ginger, touki, senkyu, peony, carrot, marronnier, salvia, and sia. When blended, it is very effective in terms of feel and stability. Other plants include chamomile, mulberry, burdock, salvia, shinano, birch, horsetail, yarrow, euglena,
Calendula officinalis, Novara, loquat leaves, hops, peach leaves, yokinin, rosemary and the like can be mentioned.

The compounding amount of the above-mentioned plant extract is preferably
The amount is 0.001 to 20% by weight, more preferably 0.1 to 5.0% by weight. When the content is less than 0.001% by weight, no moisturizing feeling and moisturizing sensation are produced, and when the content exceeds 20% by weight, the formulation has an odor over time, resulting in poor stability.

The cosmetic of the present invention may contain any component other than the above components in a qualitative and quantitative range that does not impair the effects of the present invention. Ingredients such as emulsifiers, oily ingredients, surfactants, moisturizers, antioxidants, preservatives, fragrances, various vitamin agents, chelating agents, colorants, thickeners, UV absorbers, medicinal ingredients, etc. It can be blended. In addition, the dosage form of the cosmetics of the present invention is arbitrary, for example, blusher, eyeliner, eye shadow, foundation, cake-type foundation, white powder, cream, emulsion, lotion, etc. it can.

[0030]

EXAMPLES Next, the present invention will be described with reference to Examples and Comparative Examples.
Make it more concrete. In the following, the blending amount is% by weight. Example 1, Comparative Examples 1 to 5 Each cosmetic was prepared according to the formulation shown in Table 1 below.
The stability of the obtained cosmetics for one month (50 ℃, 2
0 ° C) test, and the feel test is 2 mg / cm on the right forearm
The amount of 8mg was coated with 4 cm ² in a ratio of ^2, stickiness, extending, and evaluated for powdery texture. The evaluation was performed according to the following criteria. The results obtained are also shown in Table 1 below. ◎: Very good ○: No particular problem ×: Poor

[0031]

[Table 1]

1) In the polyoxyalkylene-modified organopolysiloxane-based surfactant represented by the general formula (A), R ₁ in the formula is a methyl group, a is 20 to 30, and b is 20.
-30, m is 300-500, n is a mixture of integers of 1-7, and HLB is 5. 2) IOB value: 35 degrees 3) IOB value: 60 degrees 4) Silica with a particle size of 0.01-10 μm containing 50% by weight of zinc oxide (Sunsphere SZ-5 (trade name) manufactured by Asahi Glass Co., Ltd.) 5) Plate-shaped talc (Fancy Veil TW-S670 (trade name) manufactured by Catalysts & Chemicals Co., Ltd.) with ultrafine titanium oxide particles with a particle size of 0.001 to 0.10 μm surface-treated with methylhydrogenpolysiloxane 6) It was extracted with purified water containing 50% 1,3-butylene glycol. 7) It was extracted with a mixed solution of ethanol and 1,3-butylene glycol.

As is clear from the evaluation results shown in Table 1,
In Example 1, it can be seen that a cosmetic excellent in both feel and stability can be obtained. On the other hand, as in Comparative Example 1, when the blending amount of the silicone oil is too large, both stability and feel deteriorate. Further, as in Comparative Example 2, it can be seen that if the blending amount of silicone oil is too small, the feel is significantly impaired. Further, as in Comparative Example 3, when the compounding amount of the surfactant A which is a polyoxyalkylene-modified organopolysiloxane-based surfactant exceeds 30% by weight, the stickiness due to the surfactant becomes extremely severe, while As in Comparative Example 4, if the compounding amount of the surfactant A is less than 1% by weight, the stability becomes extremely poor and in any case, it becomes unsuitable as a cosmetic. Furthermore, as in Comparative Example 5, polyoxyethylene octyldodecyl ether, which is a nonionic surfactant having an IOB value of 45 degrees or less.
If (5E.O.) is not added, the stability will be poor and it will not be suitable as a cosmetic.

Examples 2 to 3 and Comparative Examples 6 to 8 Each cosmetic was prepared according to the formulation shown in Table 2 below.
Stability (50 ℃, 20
In the touch test, the right arm forearm was applied at a rate of ² mg / cm ² in an amount of 8 mg at 4 cm ² and evaluated for stickiness, spreadability, moistness and moisturizing sensation. The evaluation was performed according to the following criteria. The results obtained are shown in Table 2 below. ◎: Very good ○: No particular problem ×: Poor

[0035]

[Table 2]

8) The same as the polyoxyalkylene-modified organopolysiloxane-based surfactant of 1) shown in Table 1 above. 9) In the polyoxyalkylene-modified organopolysiloxane-based surfactant represented by the general formula (A), R ₁ in the formula is a methyl group, a is 7 to 15, b is 0, m is 50 to 10
0, n is a mixture of 1 to 5 and HLB is 5. 10) IOB value: 39 degrees 11) Particle size 0.01 to 10 μm containing 50% by weight of zinc oxide
Silica (Sunsphere SZ-5 (trade name) manufactured by Asahi Glass Co., Ltd.) is surface-treated with methylpolysiloxane. 12) It was extracted with purified water containing 50% 1,3-butylene glycol. 13) It was extracted with purified water containing 20% ethanol. 14) It was extracted with purified water containing 30% ethanol and 20% 1,3-butylene glycol. 15) It was extracted with purified water containing 50% 1,3-butylene glycol.

As is clear from the evaluation results shown in Table 2,
In Example 2, it can be seen that a cosmetic excellent in both feel and stability can be obtained. In contrast,
As in Comparative Example 6, when the amount of the oily component is too large, both stability and feel are deteriorated, while when the amount of the oily component is too small, as in Comparative Example 7, a sticky feeling and spread are poor. And the feeling is significantly impaired. Further, as in Comparative Example 8, when the blending amount of the plant extract exceeds 20% by weight, the odor of the plant extract becomes strong and spread by the silicone oil becomes worse after one month at 50 ° C. When the plant extract is not blended as in Example 3, the stability and the partial feel are good, but the moist feeling and moisturizing feeling due to use are not obtained.

[0038]

As described above, although the cosmetic of the present invention is a system in which three components having extremely poor compatibility, silicone oil, oily component and water are blended,
By blending a plurality of specific components, the stability over time is excellent, a good feeling is exhibited, and the feeling of use and usability are excellent.

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Claims (5)

[Claims] 1. (a) 5 to 30% by weight of silicone oil,
(B) 1 to 30% by weight of a polyoxyalkylene-modified organopolysiloxane-based surfactant having an HLB value of 3 to 13, and (c) IO
Nonionic surfactant with B value of 45 degrees or less 0.01-10.00 weight
%, (D) 1 to 40% by weight of inorganic powder, (e) oily component 0.0
1 to 20.00% by weight and (f) 1 to 70% by weight of water are mixed, and the cosmetic is characterized. 2. The cosmetic according to claim 1, which contains a lower alcohol. 3. The (d) inorganic powder comprises (I) silica containing zinc oxide and having a particle size of 0.01 to 10 μm, (II) ultrafine titanium oxide having a particle size of 0.001 to 0.10 μm, and (III) The cosmetic according to claim 1 or 2, which is one or more selected from the group consisting of plate talc, mica and / or sericite to which ultrafine titanium oxide having a particle size of 0.001 to 0.10 µm is attached. 4. The cosmetic according to claim 1, wherein the plant extract is blended in an amount of 0.001 to 20% by weight. 5. The plant extract is sardine, shikon,
Chamomile, gentian, psyllium, aloe, licorice,
5. An extract extracted from one or two or more plants selected from the group consisting of ginger ginger, touki, senkyu, peony, carrot, horse chestnut, salvia, and shea. 5. Cosmetics.