JP2003335618A - Wet powdery cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wet powdery cosmetic easily liquefying in use by embrocating in spite of having a powdery form, manifesting an affinity to the skin with supple feeling, free from powdery feeling and creek feeling in and after use, imparting an excellent emollient feeling, and excellent in production stability in pulverizing. <P>SOLUTION: This wet powdery cosmetic liquefying by embrocating, contains (A) a hydrophobicized silicic anhydride having ≥80 m<SP>2</SP>/g surface area, (B) a polyalcohol, (C) water, and (D) a ribosome. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hydrous powder cosmetic. More specifically, while taking the form of powder, it easily liquefies by rubbing at the time of use and fits on the skin with a fresh feel, and there is no powdery or squeaky feeling during and after use, and a good emollient feeling is obtained. In addition, the present invention relates to a water-containing powder cosmetic which is excellent in production stability during powdering.

[0002]

2. Description of the Related Art Hydrous powder cosmetics are powdery cosmetics prepared by orienting a hydrophobic anhydrous silicic acid having a fine particle size around droplets of an aqueous component such as water or a polyhydric alcohol, and are made into a powder form when used. If you rub it with a palm or a small tool such as sponge or tip,
This is a cosmetic composition in which the aqueous phase-containing aqueous component and the surrounding powder are mixed to liquefy like a lotion or emulsion (Japanese Patent Laid-Open No. 6-2111620). Hydrous powder cosmetics
By making the form of the cosmetic powder containing water in this way, it is possible to impart a fresh feel to powder products such as white powder, which has not been obtained by conventional products. For cosmetics that need to be mixed with another lotion when they are used because they contain drug components that are unstable in water, etc. It is an epoch-making cosmetic formulation that enables integration.

However, since the hydrous powdery cosmetic uses hydrophobized silicic acid anhydride when powdered, the powdery and squeaky feeling derived from the silicic acid anhydride is sometimes felt.
Also, depending on the composition of the aqueous component in the hydrous powder cosmetic,
The hydrophobized silicic acid may not be well oriented around the droplets and may even be dispersed in the aqueous component.
It was very difficult to stably carry out homogeneous pulverization.

On the other hand, in order to improve the feeling of use such as powdery or squeaky feeling, an oily component, a silicone compound, a silicic acid anhydride or a polysaccharide compound is added to a hydrophobized silicic acid anhydride having a specific surface area. Water-containing powder cosmetics have been developed in which components such as a polymer, a cellulosic polymer and an oil-in-water emulsion composition are combined with a specific amount of water. However, these are not always able to sufficiently exert the effect on the improvement of the above-mentioned feeling of use.

Further, when the above-mentioned components are added for the purpose of improving the powderyness and squeaky feeling, it is rather difficult to pulverize into a powder cosmetic, or it becomes difficult to liquefy when rubbed. was there.

[0006]

Therefore, even though it is in the form of powder, it has the property of being easily liquefied by rubbing, making the best use of the property of the water-containing powder cosmetic composition that can impart a fresh feeling to the user. It has been desired to provide a water-containing powder cosmetic having excellent emollient feeling without powdery or squeaky feeling during and after use while having excellent production stability.

[0007]

Under such circumstances, the present inventor has conducted diligent research and, as a result, formed liposomes with phospholipids and then mixed them with an aqueous component such as polyhydric alcohol or water to form powders. The inventors have found that the above problems can be solved and completed the present invention.

That is, the present invention provides the following components (A) to
(D) (A) Hydrophobic silicic acid anhydride (B) having a specific surface area of 80 m ² / g or more (B) Polyhydric alcohol (C) Water (D) Liposomes, which are liquefied by rubbing The fee is provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The hydrophobized silicic acid anhydride of the component (A) used in the present invention is a substance capable of hydrophobizing the surface of fine particle silicic acid anhydride, for example, an organosilane compound, a silicone compound, a fluorine compound. It is prepared by subjecting a compound or the like to hydrophobic treatment.

Examples of such hydrophobized silicic acid anhydride include
For example, trimethylsiloxylated silicic acid anhydride, dimethyl
Roxylated silicic anhydride, octylsiloxylated silicic anhydride
Acid, silicone oil treated silicic acid anhydride, etc.
In addition, as these commercial products, in order,
530 (manufactured by Cabot: specific surface area 325 m^Two/ G),
AEROSIL R-972 (manufactured by Nippon Aerosil Co., Ltd.
Surface area 110 ± 20m ^Two/ G), AEROSIL R-
805 (manufactured by Nippon Aerosil Co., Ltd .: specific surface area 150 ± 25 m
^Two/ G), AEROSIL R-202, (Japan Aero
Made by Jill: Specific surface area 100 ± 20m^Two/ G) etc.
Be done. As the component (A), one type or two or more types of these are appropriately used.
It can be selected and compounded.

The hydrophobized silicic acid anhydride as the component (A) is required to have a specific surface area of 80 m ² / g or more by a commonly used measuring method such as a specific surface area measuring method (BET method). If the specific surface area is smaller than this, it cannot be oriented on the droplet surface of an aqueous component such as polyhydric alcohol or water,
It becomes impossible to stably powder the aqueous component.

The content of the component (A) in the hydrous powder cosmetic of the present invention is preferably 0.1 to 7% by mass (hereinafter, simply referred to as "%") with respect to the entire cosmetic, and 0.5 to 5
% Is more preferable. When the content of the component (A) is less than 0.1%, it is difficult to sufficiently powder the aqueous component, and thus it may not be possible to obtain a powdery cosmetic. Further, if the content exceeds 7%, it is possible to powder the aqueous component, but it becomes difficult to liquefy even if it is rubbed during use, and it may not have a fresh feel.

As the polyhydric alcohol as the component (B) used in the hydrous powder cosmetic of the present invention, any polyhydric alcohol commonly used in cosmetics can be used without particular limitation. For example, glycerin, Examples thereof include glycerin derivatives such as diglycerin and triglycerin, alkylene glycols such as propylene glycol, 1,3-butylene glycol and hexylene glycol, and sugar derivatives such as sorbitol and xylitol. As the component (B), one type of these may be used alone, or two or more types may be appropriately selected and used.

The content of the component (B) in the hydrous powder cosmetic of the present invention is preferably 5 to 30%, more preferably 5 to 20%, based on the whole cosmetic. When the content of the component (B) is in this range, the cosmetic can be stably pulverized, and a water-containing powder cosmetic having a high emollient property can be obtained without feeling a powdery or squeaky feeling, which is preferable.

The water of the component (C) used in the present invention imparts a liquefaction property to the cosmetics together with the above-mentioned component (B) at the time of rubbing, functions as a solvent for the aqueous component, and has a freshness and a refreshing effect on the cosmetics. It gives a good feeling such as feeling and emollient feeling. As the component (C), plant-derived steam distilled water such as purified water, hot spring water, rose water, and lavender water can be used. Ingredient (C)
May be used alone or in a suitable combination of two or more.

The content of the component (C) in the hydrous powder cosmetic of the present invention is preferably 40 to 94%, more preferably 50 to 94%, based on the whole cosmetic. When the content of the component (C) is within this range, the cosmetic can be stably pulverized, and the liquefaction at the time of rubbing is good, and a water-containing powder cosmetic having a sufficient freshness can be obtained. Therefore, it is preferable.

The component (D) liposome used in the present invention is a closed vesicle formed by a phospholipid bilayer membrane. In the water-containing powder cosmetic of the present invention, by incorporating the phospholipid in the liposome form into the aqueous component,
It keeps the system stable when the cosmetic is in powder form, gives a feeling of use without creaking or powderiness when liquefied by rubbing, and can maintain the emollient feeling and moisturizing property after rubbing. is there.

Examples of the phospholipid forming the liposome as the component (D) include phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine,
Natural phospholipids such as sphingomyelin, egg yolk lecithin, soybean lecithin, and hydrogenated phospholipids in which unsaturated carbon chains in these natural phospholipids are saturated with hydrogen and synthetic phospholipids such as dioleylphosphatidylcholine are used. . One of these phospholipids may be used alone, or two or more thereof may be appropriately selected and used.

When preparing liposomes, cholesterol or a derivative thereof may be added to improve the stabilization of the liposome membrane. Examples of this cholesterol or its derivative include cholesterol, dihydrocholesterol, cholesteryl stearate, cholesteryl hydroxystearate, dihydrocholesteryl oleate, cholesteryl nonanoate, cholesteryl butyrate, dihydrocholesteryl butyrate and the like. One of these cholesterols or derivatives thereof may be used alone, or two or more thereof may be appropriately selected and used.

The method for preparing the liposome in the present invention is not particularly limited, but for example, it can be obtained by adding phospholipid or the like to water, agitating with a mixer or the like, and then performing ultrasonic treatment if necessary. be able to. The liposome aqueous dispersion thus prepared may be mixed with other components in that state to give a water-containing powder cosmetic.

The amount of phospholipid forming the liposome is preferably 0.001 to 4% in the cosmetic,
More preferably, it is 0.01 to 3%. When the content of the phospholipid is within this range, a hydrated powder cosmetic having no squeaky feeling or powdery feeling, a sufficient emollient feeling, and excellent production stability during powdering can be obtained.

In the conventional case where the phospholipid is contained in the aqueous component directly instead of being in the liposome form, if the phospholipid content exceeds 1%, it may not be possible to powder the cosmetic. In the water-containing powder cosmetic of the present invention, the range of the compounding amount can be widened by incorporating the phospholipid into the liposome form and then incorporating it into the aqueous component. As a result, a water-containing powder cosmetic having a more squeaky or powdery feeling and a sufficient emollient feeling can be obtained.

In addition to the essential components (A) to (D) described above, the water-containing powder cosmetic of the present invention can be added to the usual cosmetics as long as the effects of the invention are not impaired and the form can be maintained. Various optional ingredients used in foods, such as surfactants, water-soluble polymers, lower alcohols, powders, fragrances, preservatives, UV absorbers, chelating agents, antioxidants, vitamins, anti-inflammatory agents, cooling agents. One or two or more kinds of cosmetic ingredients such as an agent, an animal extract, a plant extract and the like can be appropriately blended.
It should be noted that it is possible to add a small amount of the oil agent as long as the effect of the present invention is not impaired.

The method for preparing the water-containing powder cosmetic of the present invention is determined in consideration of the composition and amount of each component, and an example thereof is as follows.

First, the polyhydric alcohol of the component (B) and the water of the component (C) are uniformly mixed and dissolved, and an aqueous dispersion of liposomes of the component (D) prepared in advance is mixed with this mixed solution. Disperse. This mixed dispersion is slowly poured into the hydrophobized silicic acid anhydride of the component (A) which is in a state of being stirred by using a stirrer, and powdered to obtain the hydrous powder cosmetic of the present invention. be able to.

The application of the water-containing powder cosmetic of the present invention produced as described above is not particularly limited, but makeup cosmetics such as eye color, foundation, blusher, and white powder, body powder, antiperspirant powder, Skin care cosmetics such as whitening powder and emollient powder, sunscreen cosmetics, fragrance powders and the like can be mentioned.

[0027]

The present invention will be described in more detail with reference to Reference Examples and Examples, but the present invention is not limited thereto.

Reference Example 1 Production of Aqueous Liposome Dispersion: Using the formulation shown in Table 1 and the following production method, an aqueous dispersion of liposomes (reference products 1 to 1) was prepared.
4) was produced.

(Method)

[Table 1]

(Production Method) A. Components (1) to (4) are heated to 75 ° C. B. After hydrating “A” with part of component (7), 75
Heat to ℃. C. Disperse "B" in the balance of components (5) to (6) and component (7) heated to 75 ° C. D. "C" was cooled to room temperature to obtain an aqueous dispersion of liposomes (Reference Products 1 to 4).

Example 1 Emollient powder: Using the formulations shown in Table 2 and the following production method, emollient powders of the present invention products 1 to 4 and comparative products 1 to 2 were produced.

(Method)

[Table 2]

(Production Method) A. Components (2) to (7) are mixed and dissolved at room temperature. B. While stirring the component (1), "A" was slowly added to obtain an emollient powder.

With respect to the emollient powder obtained by the above formulation and production method, "a. Possibility of powdering" and the following 5
"B. Usability and feel" consisting of items were evaluated using the following criteria. The results are shown in Table 3.

(Evaluation method) (b) Possibility of powdering The state of the obtained emollient powder was visually observed and evaluated according to the following evaluation criteria.

[0036] ( Evaluation criteria )     Evaluation criteria       ◎: Very homogeneously pulverized       ○: All are powdered although there are some inhomogeneities       Δ: A non-powdered aqueous component is found at the bottom       ×: The hydrophobized silicic acid anhydride was dispersed in the aqueous component, and powdered                   Not finished

(B) Usability and Feel of Use A use test was conducted by 20 female evaluation panels. An appropriate amount of the obtained emollient powder was placed on the palm, rubbed to liquefy, and then applied to the face. And the following 5 items are "liquefaction" when rubbed, "freshness" during use, "no powderiness", "no squeaky feeling" and "emollient feeling" during and after use. A rating was assigned according to the evaluation criteria, and the average of the ratings of all panels was calculated and evaluated according to the following criteria.

(Evaluation criteria) Rating Usage 5 points: Very good 4 points: Good good 3 points: Normal 2 points: Somewhat bad 1 point: Bad

(Criteria) Judgment Average score of all panels ◎: 4.5 or more ○: 3.5 or more and less than 4.5 △: 2.0 or more and less than 3.5 ×: less than 2.0

(Result)

[Table 3]

As is clear from the results shown in Table 3, the emollient powders of the products 1 to 4 of the present invention have excellent powdering stability, are easily liquefied by rubbing, and have a fresh feeling.
It was a water-containing powder cosmetic having an excellent emollient feeling without powdery or squeaky feeling. In contrast, Comparative Product 1 containing no liposomes could not satisfy all the items. Further, the content of the phospholipid was the same as that of the product 4 of the present invention, but the comparative product 2 which was not mixed with the aqueous component in the form of liposome could not powder the cosmetic.

Example 2 Whitening powder: A whitening powder was produced using the following formulation and production method.

(Processing) Component mass% 1. Trimethylsiloxylated silicic acid anhydride 5.0 (Specific surface area: 250 m ² / g) 2.1,3-Butylene glycol 10.0 3.0 Glycerin 10.04 . Sodium ascorbyl phosphate 2.0 5.0 Preservative 0.5 6. Liposome water dispersion of Reference product 10.0 7. Purified water balance

(Manufacturing Method) A. Components (2) to (7) are mixed at room temperature. B. Henschel mixer (Mitsui Miike Kakoki Co., Ltd .:
Below) is stirred with component (1) using
Was slowly added by injection to obtain a whitening powder.

The whitening powder obtained in Example 2 had a homogeneous powder form, had a good liquefaction property during rubbing, and was fresh, and had no powdery feeling, no squeaky feeling, and no sensation after use. It was a whitening powder with an excellent emollient feeling.

Example 3 Whitening powder: A whitening powder was produced using the following formulation and production method.

(Processing method) Component mass% 1. Trimethylsiloxylated silicic acid anhydride 3.0 (Specific surface area: 280 m ² / g) 2. Propylene glycol 15.0 3. Diglycerin 5.0 4.0 Ascorbic acid Magnesium phosphate ester 2.0 5. Purified water Remaining amount 6. Preservative 0.1 7. Sodium citrate 1.0 8. Liposome aqueous dispersion of reference product 2.0 1.0

(Production Method) A. Components (2) to (8) are mixed with stirring at room temperature. B. The component (1) was stirred using a Henschel mixer, and "A" was slowly added thereto to obtain a whitening powder.

The whitening powder obtained in Example 3 has a uniform powder form, has a good liquefaction property during rubbing, and has an excellent feeling of use, and in particular has an excellent emollient effect for softening the skin after use. It was powder.

Example 4 White powder: White powder was produced using the following formulation and production method.

(Method) Component mass% 1. Silicone compound treatment ^{(Note 1)} Titanium oxide 5.0 2. Silicone compound treatment ^{(Note 1)} Red iron oxide 0.1 3. Silicone compound treatment ^{(Note 1)} Yellow iron oxide 1.0 4. Silicone compound treatment ^{(Note 1)} Black iron oxide 0.1 5. Fluorine compound treatment ^{(Note 2)} Talc 15.0 6. Fluorine compound treatment ^{(Note 2)} Sericite 5.0 7. Trimethylsiloxyl Silicic acid anhydride 5.0 (specific surface area: 150 m ² / g) 8. Glycerin 5.0 9. Diglycerin 1.0 10. Preservative appropriate amount 11. Liposome aqueous dispersion of Reference product 3 10.0 12. Purification Remaining amount of water Note 1: Methyl hydrogen polysiloxane treated with 3% Note 2: Perfluoroalkyl phosphate ester treated with 5%

(Production Method) A. Components (1) to (6) are uniformly mixed. B. Mix components (8)-(12). C. While stirring the component (7) using a Henschel mixer, "B" is added and powdered. D. "A" was added while mixing "C" to obtain a white powder.

The white powder obtained in Example 4 had a uniform powder form, had good liquefaction during rubbing, and had an excellent feeling during use.
In particular, it was a white powder having an excellent emollient effect that softens the skin after use.

Example 5 Emollient Powder: An emollient powder was produced using the following formulation and production method.

(Processing method) Component mass% 1. Trimethylsiloxylated silicic acid anhydride 5.0 (Specific surface area: 90 m ² / g) 2. Sorbitol 3.0 3.0 Ethanol 3.0 4.0 Propylene glycol 10. 0 5. Citric acid 0.02 6. Sodium citrate 0.1 7. Sodium lactate 1.0 8. Edetate salt 0.05 9. Reference product 4 liposome aqueous dispersion 20.0 10. Lavender water (lavender Steam distilled water)

(Production Method) A. Components (2) to (10) are uniformly mixed. B. "A" was added while stirring the component (1) using a Henschel mixer, and powdered to obtain an emollient powder.

The emollient powder obtained in Example 5 had a uniform powder form and had a good liquefaction property during rubbing.
It was an emollient powder having an excellent emollient effect that softens the skin after use, as well as having a refreshing feeling without powdery or squeaky feeling during and after use.

Example 6 Powder Foundation: A powder foundation was produced using the following formulation and production method.

(Method) Component mass% 1. Fluorine compound treatment ^{(Note 2)} Titanium oxide 7.0 2. Fluorine compound treatment ^{(Note 2)} Bengala 0.1 3. Fluorine compound treatment ^{(Note 2)} Yellow iron oxide 1.0 4. Fluorine compound treatment ^{(Note 2)} Black iron oxide 0.1 5. Silicone compound treatment ^{(Note 1)} Talc 10.0 6. Silicone compound treatment ^{(Note 1)} Sericite 20.0 7. Trimethylsiloxyl Silicic acid anhydride 3.0 (specific surface area: 280 m ² / g) 8. Propylene glycol 5.0 9. Dipropylene glycol 10.0 10. Preservative proper amount 11. Erythritol 3.0 12. Liposome water of reference product 3 Dispersion 0.1 13. Purified water Remaining amount Note 1: Methyl hydrogen polysiloxane treated with 3% Note 2: Perfluoroalkyl phosphate ester treated with 5%

(Manufacturing method) A. Components (1) to (6) are uniformly mixed. B. Components (8) to (13) are mixed and dissolved. C. Component (7) is stirred using a Henschel mixer. While adding "B", pulverize. D. While mixing "C", "A" was added to obtain a powder foundation.

The powder foundation obtained in Example 6 had a homogeneous powder form, had a good liquefaction property during rubbing, had a fresh and refreshing feeling, and had no powderiness during and after use. The powder foundation was excellent in squeaky feeling and emollient effect to soften the skin.

[0062]

EFFECTS OF THE INVENTION The water-containing powder cosmetic of the present invention is in the form of powder, but has the property of being easily liquefied by rubbing at the time of use, and is capable of conforming to the skin and imparting moisture and the like with a fresh feel. In addition, since it contains liposomes, it is a cosmetic having a good feeling of use with no powdery or squeaky feeling during and after use, and a sufficient feeling of use, and stable manufacturing during powdering of the cosmetic. It is also excellent in sex.

Therefore, the water-containing powder cosmetics of the present invention are makeup cosmetics such as eye colors, foundations, blushers, and white powders, skin care cosmetics such as body powders, antiperspirant powders, whitening powders, emollient powders, and sunscreen cosmetics. , And can be advantageously used as various cosmetics such as fragrance powder. that's all

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Claims (4)

[Claims] 1. The following components (A) to (D) (A) containing a hydrophobized silicic acid anhydride (B) polyhydric alcohol (C) water (D) liposome having a specific surface area of 80 m ² / g or more, A hydrous powder cosmetic which is liquefied by rubbing. 2. The content of phospholipids forming liposomes is 0.001 to 4 mass% with respect to the entire hydrous powder cosmetic.
The water-containing powder cosmetic composition according to claim 1. 3. A phospholipid selected from the group consisting of phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine, sphingomyelin, egg yolk lecithin, soybean lecithin or hydrogenated phospholipids thereof and dioleylphosphatidylcholine. Alternatively, the water-containing powder cosmetic according to claim 2, which is two or more kinds. 4. The water-containing powder cosmetic is selected from the group consisting of foundation, white powder, body powder, whitening powder, emollient powder and fragrance powder. Hydrous powder cosmetics.