JP2001139449A - Water-in-oil type emulsified cosmetic of low viscosity having high water-phase content - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-in-oil type emulsified cosmetic of low viscosity having high water-phase content, giving moisture to the hair or the skin, softly wet, not sticky, lightly spreading, excellent in storage stability, and having a water-phase content of >=60 wt.%. SOLUTION: This water-in-oil type emulsified cosmetic of low viscosity having high water-phase content is prepared by mixing 0.1-10.0 wt.% of one or more kinds of crosslinking-type polyether-modified silicones of the structural formula (1) (1 is 10-20; m is 20-30; and n is 1-5) with other cosmetic components, contains the water phase in an amount of >=60 wt.%, and has a viscosity of <=10,000 mPa.s at 30 deg.C. A paste-like polyether-modified silicone composition which is formed by kneading and treating the crosslinking-type polyether- modified silicone and a silicone oil with shearing force is preferably used as the crosslinking-type polyether-modified silicone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a low-viscosity, high-internal-water-in-oil emulsion emulsified cosmetic having excellent usability and stability.
More specifically, it has a low-viscosity high moisture content of 60.0% by weight or more, which moisturizes hair or skin, is moist, has no stickiness, is light, and has excellent stability over time. The present invention relates to a water-in-oil internal emulsion emulsified cosmetic.

[0002]

2. Description of the Related Art An emulsifier is generally used to form a water-in-oil (W / O) emulsified cosmetic in which water is dispersed in oil of a continuous phase. Conventionally, polyhydric alcohol fatty acid ester activators such as glycerin fatty acid ester and sorbitan fatty acid ester or polyoxyalkylene-modified organosiloxane activator are generally used.

However, using these emulsifiers, the water content of the high internal aqueous phase containing 60% by weight or more of the aqueous phase component in the composition is considered to be W /
When the O-type emulsified composition is prepared, the viscosity at 30 ° C. is 3000
It becomes a hard cream or solid of 0 or 50,000 mPa · s or more, and in actual use, it has drawbacks such as poor spreadability and stickiness. In addition, since the appearance becomes a hard creamy or solid substance, the dosage form as a cosmetic cannot be broadened.

In recent years, a paste-form polyether-modified silicone composition obtained by kneading a cross-linked polyether-modified silicone similar to the above structural formula and silicone oil used in the present invention under shearing force has been developed. There has already been proposed a technique for producing a water-in-oil type emulsion composition having excellent stability over time and feeling during use (Japanese Patent Application Laid-Open No. 6-408).
No. 47). However, even when this composition is used, when a water-in-oil emulsion composition having a high internal water phase of 60.0% by weight or more of the water phase component is prepared, the viscosity at 30 ° C. is 30,000 mPa ·
s or more cream, and had a poor feeling in terms of usability.

[0005]

The present inventors have also conducted research and development of a high internal water phase water-in-oil type emulsified cosmetic, and under such circumstances, the above-mentioned crosslinked polyether-modified silicone and Focusing on the properties of the paste-like polyether-modified silicone composition, it is possible to produce a water-in-oil type emulsified cosmetic with excellent usability and stability and low viscosity by using them. Explored.

In particular, the present inventor does not aim to improve the properties by using additives, but by improving the modified silicone itself, it is excellent in usability and stability and low in viscosity and high in viscosity. An attempt was made to produce a water-in-oil-in-oil emulsion cosmetic, and as a result, the developed cosmetic is the cosmetic of the present invention. Accordingly, the present invention provides a modified silicone having the above-mentioned improved properties to moisturize the skin and hair, to provide a moist, non-sticky, light, and low-viscosity excellent in stability over time. It is an object of the present invention to provide a water-in-oil-in-water type emulsified cosmetic.

[0007] That is, an object of the present invention is to provide a low-viscosity, high-internal-water-phase-in-oil emulsified cosmetic excellent in usability and stability, and the cosmetic is provided. It is an object of the invention. As a result, it is possible to provide a low-viscosity, high-in-water-phase-in-oil-in-oil emulsion cosmetic that can be made into a lotion without being creamy or solid. did.

[0008]

Means for Solving the Problems The present invention solves the above-mentioned problems, and a cosmetic of the present invention that solves the problems is a crosslinked polyether-modified silicone represented by the following structural formula (1): One or two or more of 0.1 to 10.0
% Of the component (A), the content of the aqueous phase component is 60% by weight or more, and the viscosity at 30 ° C. is 10,000 mPa.
A low-viscosity high-in-water-phase water-in-oil emulsified cosmetic having excellent usability and stability characterized by being at most s.

[0009]

Embedded image

In the present invention, the use of the above-mentioned cross-linked polyether-modified silicone provides moisture to the skin and hair, makes it moist and non-sticky, spreads lightly, and has good stability over time. An object of the present invention is to provide a novel type of low-viscosity, high-in-water-in-oil-in-oil emulsified cosmetic having a unique characteristic.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below. The low-viscosity, high-inner-water-phase water-in-oil emulsified cosmetic according to the present invention is defined as having an aqueous phase component content of 60.0% by weight or more of the whole composition, and the aqueous phase component being a continuous phase oil phase It refers to a water-in-oil (W / O type) low-viscosity emulsified cosmetic dispersed in components.

Specific cosmetics include, for example, lotion-like emulsions for skin care, styling or treatment agents for hair care, and liquid foundations. The cosmetics of the present invention include, but are not limited to, those exemplified. The cosmetics of the present invention are not limited, as long as they are low-viscosity (viscosity of 10000 mPa · s or less at 30 ° C. and 10,000 mPa · s or less) high water-in-oil emulsion cosmetics.

In the present invention, the cross-linked polyether-modified silicone is used as an emulsifier, and is a polymer obtained by cross-linking methyl hydrogen polysiloxane with diallyl polyether at both ends. The production can be carried out, for example, by the method described in JP-A-4-272932 or JP-A-5-140320. In the present invention, those produced thereby can also be used, but the modified silicone used in the present invention is represented by the structural formula (1) and is a specific one defined in the proviso. That is, l, m, and n are specified as described above.

As the cross-linked polyether-modified silicone, it is preferable to use a paste-like polyether-modified silicone composition previously kneaded with a silicone oil under shearing force. And silicone oil or the like may be individually compounded as a cosmetic component when preparing the cosmetic. In this case, it is also possible to knead after mixing with other cosmetic ingredients and the like.

In using the crosslinked polyether-modified silicone of the above structural formula (1) in the present invention, 1 is 1
It is necessary to be 0 to 20, and if it is less than 10 out of this range, the paste composition obtained by kneading the crosslinked polyether-modified silicone and silicone oil under shearing force has a low viscosity. (The viscosity of the prepared emulsified composition at 30 ° C. is 10,000 mPa · s or less), the emulsification stability of water is poor, and when it exceeds 20, the swelling property to silicone oil is insufficient and it cannot be used.

It is necessary that m is from 20 to 80. If it is less than 20, it will not swell sufficiently in the silicone oil, and if it is more than 80 and less than 200, the viscosity will be too high. The low viscosity type water-in-oil emulsion composition of the present invention cannot be obtained because the swelling property of the paste composition obtained by kneading the oil under shearing force with the silicone oil is too good. On the other hand, when it exceeds 200, the paste composition has poor emulsifiability of water.

Further, n needs to be 1.0 to 5.0, and if it is smaller than 1.0, a three-dimensional structure cannot be formed, and even if it is kneaded with a silicone oil, a paste is obtained. And the emulsifiability of water is inferior. Conversely, 5.0
Exceeds 10.0 and the viscosity is too high,
Therefore, the emulsifiability in water becomes too good, and the low-viscosity water-in-oil emulsion composition of the present invention cannot be obtained. If it exceeds 10, the cross-linking density of the three-dimensional cross-linked structure becomes too high, so that the silicone oil cannot be retained even after the kneading treatment with the silicone oil, so that a stable paste cannot be obtained.

In the present invention, the silicone oil to be kneaded with the crosslinked polyether-modified silicone is not particularly limited, and may be linear or branched, and various silicone oils can be used. However, a low viscosity silicone oil having a viscosity at 25 ° C. of 100 mPa · s or less can be preferably used.

Specific silicone oils that can be used include:
Cyclic dimethylpolysiloxanes such as methylpolysiloxane, methylphenylpolysiloxane, ethylpolysiloxane, ethylmethylpolysiloxane, ethylphenylpolysiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane, and the like, alone or You may mix and use 2 or more types.

The mixing ratio of the crosslinked polyether-modified silicone and the silicone oil is such that the silicone oil is added to 100 parts by weight of the crosslinked polyether-modified silicone.
The amount is preferably 0 to 1000 parts by weight, and more preferably 20 to 500 parts by weight. If the amount of the cross-linked polyether-modified silicone is less than the above range, a stable and good gel structure cannot be maintained, and if the amount exceeds the above range, weight is felt on the skin, and usability and usability deteriorate. Therefore, it is not preferable.

The apparatus for performing the kneading treatment under shearing force is not particularly limited, and a commonly used apparatus can be used.
Examples include a roll mill, a sand grinder, a colloid mill, and a Gaurin homogenizer, and a 3-roll mill is particularly preferably used.

In the present invention, the amount of the crosslinked polyether-modified silicone used as an emulsifier in the cosmetic is 0.1 to 10.0% by weight based on the total amount of the cosmetic.
It is necessary to mix in. Out of range.
If the content is less than 1% by weight, the aqueous phase component of 60.0% by weight or more of the internal phase cannot be emulsified, and if the content exceeds 10.0% by weight, the low viscosity of the present invention of 10,000 mPa · s or less at 30 ° C. Type water-in-oil emulsified cosmetics of high internal water phase cannot be obtained,
The spread is poor and the feeling of use is heavy. When the crosslinked polyether-modified silicone is blended as a paste-like polyether-modified silicone composition, it is necessary to select the blending amount of the crosslinked polyether-modified silicone in the above range. .

As the oil phase component to be incorporated into the high internal water phase water-in-oil type emulsion cosmetic of the present invention, an oil agent usually used in a water-in-oil type (W / O type) emulsion cosmetic, The oil phase components can be used without any particular restrictions,
It can be used for both vegetable oil and synthetic oil. As the oil phase component, specifically, liquid paraffin, liquid such as squalane, paste or solid hydrocarbon, wax, higher fatty acid, higher alcohol, ester, glyceride, or dimethylpolysiloxane, or polyether modified, Examples include silicone-based oils such as various modified silicones such as fluorine-modified.

In the emulsified cosmetic of the present invention, the oil phase component is blended in the range of 10% by weight to less than 40% by weight based on the total amount of the cosmetic. If the amount is less than 10% by weight, it is difficult to make the cosmetic a water-in-oil type. If the amount is 40% by weight or more, the amount of water in the internal phase becomes too small, and the feeling of use is lacking in terms of usability. The oil corresponding to "O" in the W / O type emulsified cosmetic includes all oily components such as natural animal / vegetable oil and synthetic oil contained in the cosmetic. The crosslinked polyether-modified silicone as an emulsifier and the paste-form polyether-modified silicone composition, which is a preferred form thereof, are also oily components, and are components corresponding to “O”.

The water phase component such as water mixed with the oily component in the low viscosity high internal water phase oil-in-oil type emulsified cosmetic of the present invention, that is, "W" means water, ethanol, a thickener, etc. A water-soluble compound is applicable, and a water-soluble polymer, an inorganic salt and an amino acid salt which are blended as an emulsion stabilizer described later are also water phase components and correspond to “W” in the present invention. In the present invention, the amount of the aqueous phase component is from 60% by weight to less than 90% by weight based on the total amount of the cosmetic. The blending amount is preferably 60% by weight or more in water itself, and by doing so, a moist feeling can be imparted, which is preferable. If the amount of the aqueous phase component is less than 60% by weight, the characteristic of water is hardly exhibited, and the feeling of moisture is lacking. Conversely, if the content is 90% by weight or more, it is difficult to obtain a water-in-oil type.

Next, components to be blended as an emulsion stabilizer in the present invention will be described. In the present invention, an emulsion stabilizer can be blended together with the emulsifier, and the emulsion stabilizer used in the present invention has a molecular weight of 2,000 to 3,000.
One or two or more selected from the group consisting of a water-soluble polymer of 00000, an inorganic salt and an amino acid salt. It is sufficient to use at least one of the above-described water-soluble polymers, inorganic salts or amino acid salts for the incorporation of the emulsion stabilizer into cosmetics, but it is sufficient to mix two or more inorganic salts or amino acid salts. You can use it. It is necessary that the compounding amount is within a range in which the performance of the emulsion stabilizer is exhibited, and the compounding amount of each stabilizer is as described below.

Examples of the water-soluble polymer include polyethylene glycol, polyvinyl alcohol,
Water-soluble synthetic polymers such as polyacrylic acid, carboxymethylcellulose, polyvinylpyrrolidone, hydroxymethylcellulose, and methylcellulose; and natural water-soluble polymers such as dextrin, peptin, alginic acid, and chondroitin sulfate.

As described above, the molecular weight of the water-soluble polymer is 2,000 to 300,000, preferably 30 to
00-100,000 is good. Those having a molecular weight of less than 2000 do not contribute to stabilization. In addition, the molecular weight is 300,000
When the ratio exceeds, there is a drawback in that the contribution of the emulsion stabilization is small and the feeling of use of the emulsified cosmetic is sticky. The compounding amount is 0.1 to 20.0% by weight of the total amount of the emulsified cosmetic,
Preferably it is 0.2 to 10.0% by weight. If the content is less than 0.1% by weight, the usability cannot be improved and 20.0%
Exceeding the weight percentage causes stickiness when used as an emulsified cosmetic, which is not preferred.

Particularly preferred among the water-soluble polymers are:
Specifically, polyethylene glycol is particularly effective in improving the usability of the emulsified cosmetics, and has an advantage that the feeling of use when used as an emulsified cosmetic is preferred. Particularly preferred molecular weight of the polyethylene glycol is 3,000 to 20,000,
It is preferably from 1.0 to 10.0% by weight based on the total amount of the emulsified cosmetic.

In the present invention, the inorganic salt to be blended as the emulsion stabilizer includes alkali metal salts such as hydrochloric acid, sulfuric acid, nitric acid, carbonic acid and phosphoric acid, alkaline earth metal salts, aluminum salts, zinc salts and ammonium salts. Is mentioned. Preferred specific inorganic salts include chlorides such as sodium chloride, potassium chloride, magnesium chloride, calcium chloride, aluminum chloride, zinc chloride, and ammonium chloride, sodium sulfate, potassium sulfate, magnesium sulfate, aluminum sulfate, zinc sulfate, and ammonium sulfate. Sulfates,
Nitrate such as sodium nitrate, potassium nitrate, magnesium nitrate, calcium nitrate, aluminum nitrate, zinc nitrate, ammonium nitrate, sodium carbonate, potassium carbonate,
Carbonates such as magnesium carbonate and calcium carbonate; and phosphates such as sodium phosphate and potassium phosphate.

Particularly preferred among these inorganic salts are sodium chloride, potassium chloride, magnesium chloride, calcium chloride, aluminum chloride, sodium sulfate, potassium sulfate, magnesium sulfate and aluminum sulfate. When the inorganic salt is used as the emulsion stabilizer in the present invention, the compounding amount is 0.1 to 8.0% by weight, preferably 0.2 to 5.0% by weight. If it is less than 0.1% by weight, the usability of the emulsion cannot be improved, and if it exceeds 8.0% by weight, the effect is not enhanced.

In the present invention, the amino acid salt to be compounded as the emulsion stabilizer is one in which a carboxyl group or an amino group in the amino acid forms a salt, and a water-soluble amino acid salt can be used without any particular limitation. It includes, for example, sodium aspartate, potassium aspartate, magnesium aspartate, calcium aspartate, sodium glutamate, potassium glutamate, magnesium glutamate, calcium glutamate, glutamate, cysteine hydrochloride, histidine hydrochloride, lysine hydrochloride, ornithine Hydrochloride, tryptophan hydrochloride, arginine-glutamate, ornithine-glutamate, lysine-glutamate, lysine-aspartate, ornithine-aspartate, and the like.

Preferred among these amino acid salts are:
It is sodium glutamate. When the amino acid salt is used as the emulsion stabilizer in the present invention, the compounding amount is 0.1 to 8.0% by weight, preferably 0.2 to 5.0% by weight, based on the total amount of the emulsified cosmetic. . If the amount is less than 0.1% by weight, the usability cannot be improved.
Even if it is blended beyond the above, the effect is not enhanced.

In the emulsified cosmetic of the present invention, in addition to the above-mentioned essential components and the above-mentioned water phase components and oil phase components,
Various aqueous components (aqueous phase components) usually mixed in emulsified cosmetics
And an oily component (oil phase component).
For example, humectants, preservatives, antioxidants, ultraviolet absorbers, cosmetic ingredients, fragrances, fragrances, thickeners, coloring pigments, glittering pigments, organic powders, hydrophobicized pigments, tar pigments, etc. Yes, they can be blended within a range that does not impair the effects of the present invention.

As specific examples of the low-viscosity high-inner-water-phase water-in-oil emulsion cosmetic composition of the present invention, as described above, for example, lotion-like emulsions for skin care, styling or treatment agents for hair care, and liquids Although the cosmetics of the present invention are not limited to those exemplified, the cosmetics of the present invention are not limited to the above-mentioned cosmetics and have a low viscosity (viscosity of 10000 mPa · s or less at 30 ° C.) in a high internal water phase oil. As long as it is a water-based emulsion cosmetic, it falls under the cosmetic of the present invention. In addition, the production of these products can be carried out by a conventional method using the above-mentioned essential components, the above-mentioned water phase component and oil phase component, and the components usually blended in cosmetics.

[0036]

EXAMPLES Hereinafter, a plurality of examples of the present invention will be described. However, it is needless to say that the present invention is not limited to these examples, and is understood by the appended claims. is there.

[Composition and Performance Tests of Skin Care Emulsions of Examples and Comparative Examples] The low viscosity, high internal aqueous phase water-in-oil emulsion emulsified skin care emulsions of Examples 1 to 4 having compositions corresponding to the present invention were obtained. Comparative Examples 1 to 4 which do not correspond to the present invention were produced, and the obtained emulsions were subjected to a stability test, a viscosity measurement at 30 ° C., and a usability test to evaluate their performance. The usability test was performed by an actual use test by a panel of 10 female professionals, and the preference during use was determined according to the following evaluation criteria. Examples 1 to 4 and Comparative Examples 1 to
The composition and test results of the emulsion of No. 4 are as shown in Table 1. The structures of the crosslinked polyether-modified silicones used in the examples and comparative examples are as described below.

[0038]

[Table 1]

In Table 1, the amounts of each component are all expressed in terms of% by weight. Therefore, looking at the blending amounts of the aqueous phase component and the oil phase component of the emulsion in this table, for example, in Example 1, the aqueous phase component was water, ethanol,
82. Because it is sodium glutamate and paraben
0% by weight, and the oil phase component is dimethylpolysiloxane and a paste-like polyether-modified silicone composition, so that the blending amount is 18.0% by weight.

The evaluation criteria in this performance test are as follows. [Evaluation Criteria for Stability] A: No separation was observed. Δ: Almost no separation was observed. ×: Separation of the liquid phase (oil phase or aqueous phase) occurred.

[Evaluation Criteria for Usability] <Stickiness> ：: All ten people were moist, moist, and non-greasy, judged good usability. ：: 7 to 9 people moist, moist, non-greasy, good usability. Δ: Three or more and six or less were moist, moist, non-greasy and judged good in usability. ×: Two or less people were moist, moist, non-greasy and judged good in usability.

<Expansion Feeling> ：: All 10 persons judged that the lightness was smooth, smooth and good in usability. ：: Seven or more and nine or less judged that the spread was light, smooth and good in usability. Δ: Three or more and six or less determined that the spread was light, smooth and good in usability. X: Two or less persons judged that the spread was light and smooth and the usability was good.

The paste-form polyether-modified silicone composition blended in the skin care emulsions of the examples and comparative examples used in this test was prepared by mixing 100 parts by weight of the following crosslinked polyether-modified silicone with a viscosity of 6 mPa · s. It is obtained by kneading with 400 parts by weight of methylpolysiloxane under shearing force to form a paste.

[Cross-linked polyether-modified silicone used in Examples] (A) 1:10 to 15, m: 40 to 60, n: 1 to 5 (B) 1:15 to 20, m: 50 to 60 , N: 1 to 3 (C) l: 15 to 20, m: 20 to 40, n: 1 to 5 (D) l: 15 to 20, m: 30 to 50, n: 1 to 3

[Cross-Linked Polyether-Modified Silicone Used in Comparative Example] (E) 1: 3 to 8, m: 40 to 60, n: 1 to 5 Emulsion stability × (F) 1: 15 to 20, m : 90-120, n: 1-5, viscosity too high x (G) l: 15-20, m: 40-60, n: 6-8, viscosity too high x

From the results of the performance tests described above, the emulsions for skin care of the examples were evaluated as having good stickiness and spreadability, and were excellent in usability and stability. It is clear that the low-viscosity, high-inner-water-phase water-in-oil emulsion cosmetic is a cosmetic excellent in usability and stability. On the other hand, the skin care emulsion of Comparative Example has a low evaluation in one or both of a sticky feeling and a spreading feeling, and has a very low stability evaluation.

Example 5 Hair Treatment Cream Compounding Amount (%) (1) Liquid Paraffin 6.0 (2) Decamethylcyclopentasiloxane 10.0 (3) 1,3-butylene glycol 3.0 (4) Paste polyether-modified silicone composition 2.5 [100 parts by weight of the cross-linked polyether-modified silicone (A) kneaded with 500 parts by weight of tecamethylcyclopentasiloxane under shearing force] (5) Ion exchange Water 72.1 (6) Sodium chloride 3.0 (7) Paraben 0.2 (8) Antioxidant 0.1 (9) Ethanol 3.0 (10) Fragrance 0.1

<Production method and product performance> (1) (2)
(4) is mixed to prepare an oil phase mixture in advance. Next, while stirring the oil phase mixture using a high-speed stirrer, a mixed aqueous phase obtained by mixing, stirring and dissolving (3), (5) to (10) was gradually added thereto at room temperature, and the desired hair treatment cream was added. I got The resulting cream has a viscosity of 3500 at 30 ° C.
At mPa · s, the usability is ◎ as in Examples 1-4. That is, when applied to hair, it gives moisture, has a moist feel, is not sticky, and spreads lightly.
In addition, the stability was good, and the result was ○.

Example 6 Hair Styling Cream Compounding Amount (%) (1) Isoparaffin 3.0 (2) Dimethylpolysiloxane (100 mPa · s) 5.0 (3) Glycerin 5.0 (4) Paste Poly Ether-modified silicone composition 1.5 [100 parts by weight of the crosslinked polyether-modified silicone (B) kneaded with 300 parts by weight of methylphenylpolysiloxane under shearing force] (5) Paste-form polyether-modified silicone Composition 1.5 [100 parts by weight of the crosslinked polyether-modified silicone (C) were kneaded with 400 parts by weight of dimethylpolysiloxane 6 mPa · s under shearing force] (6) Vinylpyrrolidone / vinyl acetate copolymer Merged 3.0 [Product name: PVP / VA-S-630, manufactured by ISP] (7) Ion-exchanged water 70.8 (8) Ethanol 8.0 (9) Polyethylene glycol (molecule) 10000) 2.0 (10) paraben 0.1 (11) Perfume 0.1

<Production method and product performance> (1) (2)
(4) (5) is mixed to prepare an oil phase mixture in advance. Next, while stirring the oil phase mixture using a high-speed stirrer, a mixed aqueous phase obtained by mixing and dissolving (3), (6) to (11) was gradually added at room temperature, and the viscosity at 30 ° C. was increased. 670
The desired hair styling cream having a pressure of 0 mPa · s was obtained. The usability of the obtained hair styling cream is ◎. That is, when applied to hair, it gives moisture, has a moist feel, is not sticky, and spreads lightly. In addition, the stability was good, and the result was ○.

Example 7 W / O Emulsion Type Foundation Compounding Amount (%) (1) Squalane 1.0 (2) Dimethylpolysiloxane (6 mPa · s) 3.0 (3) Propylene glycol 2.5 (4) ) Paste-form polyether-modified silicone composition 3.5 [100 parts by weight of the crosslinked polyether-modified silicone (D) kneaded with 250 parts by weight of octamethylcyclotetrasiloxane under shearing force] Exchanged water 70.6 (6) Ethanol 1.0 (7) Sodium glutamate 1.5 (8) Potassium chloride 1.5 (9) Paraben 0.1 (10) Dextrin palmitate treated titanium dioxide 5.0 (11) 1. Mica treated with dextrin palmitate 5.0 (12) Talc 2.5 treated with dextrin palmitate 2.5 (13) Iron oxide treated with dextrin palmitate 2. (14) dibutylhydroxytoluene 0.1 (15) Perfume 0.2

<Production method and product performance> (1) (2)
(4) and (10) to (13) are mixed and dispersed to prepare an oil phase dispersion in advance. Next, while stirring the oil phase dispersion using a high-speed stirrer (disper), (3) (5) to (9)
(14) A mixed aqueous phase in which (15) was dissolved was gradually added at room temperature to obtain a desired W / O emulsified foundation. The usability of the obtained W / O emulsion type foundation is ◎. That is, when applied to the skin, it gives moisture, has a moist feel, is not sticky, and spreads lightly.

[0053]

As is clear from the description of the above examples and embodiments of the present invention, the present invention provides a cross-linked polyether-modified silicone having a specific structure as an emulsifier, particularly, a silicone oil and a silicone oil under shearing force. Using a paste-like polyether-modified silicone composition kneaded with water and containing 60% by weight or more of water and having a viscosity at 30 ° C of 1000
An object of the present invention is to provide an unconventional low-viscosity high-in-water-phase water-in-oil type of 0 mPa · s or less. As a result, the cosmetic of the present invention
It gives moisture to the skin and hair, is moist, non-greasy, spreads lightly, is excellent in usability, and is excellent in stability over time. That is, the present invention can provide a low-viscosity, high-in-water-phase water-in-oil type excellent in usability and stability, and has excellent effects.

Continued on the front page F term (reference) 4C083 AB051 AB232 AB242 AB331 AB332 AB341 AB351 AB361 AB432 AB442 AC022 AC102 AC122 AC472 AC482 AC581 AC582 AD041 AD042 AD092 AD152 AD161 AD162 AD172 BB36 BB60 CC01 CC05 CC12 CC32 CC33 DD32 EE01 EE06 EE07 EE07 EE09

Claims (8)

[Claims] 1. One or more of the cross-linked polyether-modified silicones of the following structural formula (1) containing 0.1 to 10.0% by weight of component (A) and the content of aqueous phase component Is 6
0% by weight or more, viscosity at 30 ° C is 10,000 mP
A low-viscosity, high-in-water-in-oil-in-water emulsion emulsified cosmetic having excellent usability and stability characterized by being at most a · s. Embedded image 2. In addition to the component (A), one or more components (B) selected from the group consisting of a water-soluble polymer having a molecular weight of 2,000 to 300,000, an inorganic salt and an amino acid salt are further added. The low-viscosity, high-internal-water-in-oil-in-oil emulsion cosmetic composition according to claim 1. 3. The crosslinked polyether-modified silicone composition is a pasty polyether-modified silicone composition kneaded with a silicone oil under a shearing force, and the composition is a crosslinked polyether-modified silicone composition. The ratio of silicone to silicone oil is 100 parts by weight: 10 to 1
3. The water-in-oil type emulsified cosmetic having a low viscosity and a high internal water phase according to claim 1 or 2, which is 000 parts by weight. 4. The content of the component (B) is from 0.1 to 10.
The low-viscosity high-in-water-phase water-in-oil emulsion cosmetic according to claim 2 or 3, which is 0% by weight. 5. The low viscosity, high internal water phase oil-in-water emulsion cosmetic according to claim 2, wherein the water-soluble polymer is polyethylene glycol. 6. The low-viscosity, high-internal-water-phase oil-in-water emulsion cosmetic according to claim 2, wherein the amino acid salt is sodium glutamate. 7. The low viscosity oil-in-water according to claim 2, wherein the inorganic salt is sodium chloride, potassium chloride, magnesium chloride, calcium chloride, aluminum chloride, sodium sulfate, potassium sulfate, magnesium sulfate or aluminum sulfate. Type emulsified cosmetics. 8. The low-viscosity, high-in-water-in-oil-in-oil emulsion cosmetic according to claim 1, wherein the content of water is 60.0% by weight or more.