JPH09143029A - Cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic excellent in feeling in use, durability of cosmetic effect and transfer preventing effect by compounding a silicon-containing resin powder and an organic silicon resin compound at a specific ratio. SOLUTION: This cosmetic contains (A) 0.5-40wt.% silicon-containing resin powder and (B) 0.1-40wt.% organic silicon resin compound soluble in a cyclic silicone such as trimethylsiloxysilicic acid, a fluoride-modified silicone resin or an acrylated silicone graft copolymer. Further, it is necessary that a pulverization process is included in the manufacturing process so that a conjugate coating film consisting of the components A and B is formed on the skin on the application of the cosmetic. The cosmetic is effectively used as a makeup cosmetic or a sunscreen agent.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cosmetic having excellent feel and durability of cosmetic effect. More specifically, by adding a silicon-containing resin powder and an organic silicon-based resin compound in a specific ratio, and adding a pulverizing step during the process so as to form a composite film when applying cosmetics, the touch and the cosmetic effect can be maintained. The present invention relates to cosmetics having excellent properties and transfer prevention effects.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Patent Publication No. 2-243612,
Japanese Patent Application Laid-Open No. 7-53333, Japanese Patent Publication No. 4-66446, and Japanese Patent Publication No. 6-51614 disclose various types of silicon-containing resin powders as they are in a liquid cosmetic composition to improve the feel and moisture retention. It is known that the characteristics are improved.

However, when these silicon-containing resin powders are used as they are in cosmetics, the effect of improving the feel is great,
Since these powders have poor adhesion to the skin, they often lack makeup durability. Therefore, the present inventor has filed Japanese Patent Application
-194201, Japanese Patent Application No. 7-207469 and Japanese Patent Application No. 7-207470 showed that the use of pulverized products of these powders can improve the durability of the cosmetic effect.

[0004]

A simple comparison between a pulverized product and an unpulverized product shows that the pulverized product has a longer lasting makeup. However, under harsh conditions such as sunscreen and foundation applied to the T zone (forehead and nose) (eg, under direct sunlight, strong wind, cold,
In the case of cosmetics exposed to exercise conditions, etc., the performance was still insufficient even with this improved performance.

Therefore, the present inventor conducted a study to further improve the durability of makeup and the effect of preventing transfer while maintaining an excellent feel, and as a result, silicon-containing resin powder, trimethylsiloxysilicic acid, and fluorine-modified It has been found that the desired quality can be obtained by forming a composite film on the skin with an organosilicon resin compound that dissolves in a cyclic silicone such as a silicone resin or an acrylated silicone graft copolymer.

That is, the object of the present invention relates to a cosmetic composition which is excellent in touch, durability of cosmetic effect and anti-transfer effect.

[0007]

In order to achieve the above object, the cosmetic of the present invention has the following constitution. That is, in 100% by weight of cosmetics, (A) 0.5 to 40% by weight of silicon-containing resin powder, and (B) 0.1 to 40% by weight of an organosilicon resin compound soluble in cyclic silicone. In addition, the cosmetic composition is capable of forming a composite film composed of (A) and (B) when used.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The silicon-containing resin powder used in the present invention is a resin powder having an average primary particle size in the range of 0.1 to 50 μm as observed by an electron microscope, and contains silicon atoms. The feature is that it contains. The particle size distribution of the resin may be narrow or wide. The shape may be spherical, irregular, lumpy, plate-shaped, needle-shaped, etc., but is not particularly limited.

Examples of the silicon-containing resin powder include silicone resin, silicone rubber powder, resin powder coated with a silicone compound, and silylated polyethylene resin powder. Examples of the powder made of silicone resin include silicone resin powders sold by silicone manufacturers in Japan and overseas, and the trefill series manufactured by Toray Dow Corning Silicone Co. is particularly preferable.

The resin powder coated with a silicone compound is methyl hydrogen polysiloxane,
Dimethylpolysiloxane, trimethylsiloxysilicic acid,
Nylon, polyethylene, polypropylene, polycarbonate, polystyrene, Teflon, acrylic, polymethylmethacrylate, cellulose, chitin, chitosan, cotton, coated with a silicone compound such as silane coupling agent, alkylsilane, silicone resin, fluorosilicone, etc. Examples thereof include polyvinyl alcohol.

As the organosilicon resin compound used in the present invention, only those having a characteristic of dissolving in cyclic silicone can be used. This is to maintain the affinity between the organosilicon resin compound and the silicon-containing resin powder, and when a completely insoluble compound is used, there is a problem that the cosmetic effect persistence is reduced.

The organosilicon resin compound used in the present invention is a compound which is solid or pasty at 25 ° C. and is a water-insoluble compound having a silicon, oxygen and carbon element in its molecule. For example, a silicone resin compound such as trimethylsiloxysilicic acid, a fluorine-modified silicone resin compound having a fluorinated alkyl chain as described in Japanese Patent Application No. 7-192530, an acrylated silicone graft copolymer or an organic UV absorber. Examples include various modified silicone resin compounds such as silicone resins modified with agents. The organosilicon resin compound is preferably used in a state of being dissolved in a solvent such as cyclic silicone.

In the present invention, it is necessary to form a composite film composed of the above-mentioned silicon-containing resin powder and an organic silicon resin compound. For that purpose, it is necessary to crush the silicon-containing resin powder. In the crushing step, a solution obtained by crushing a silicon-containing resin powder is first prepared, and then the solution is mixed with a cosmetic, and a solution obtained by crushing the silicon-containing resin powder and an organic silicon resin compound is prepared first. In addition, a method of blending it into a cosmetic, a method of collectively crushing each component of the cosmetic, and the like can be mentioned.

As the pulverizing method, wet pulverizing in a solvent such as cyclic silicone or light liquid isoparaffin is preferable, and it is preferable to use a wet pulverizing device such as a ball mill, a sand mill, a micros or a dyno mill.

The composite film referred to in the present invention is composed of mechanically pulverized silicon-containing resin powder and an organic silicon resin compound. Examples of the method for determining the ease of forming the composite film include the following methods depending on the degree of pulverization.

A state containing silicon-containing resin powder and not crushed by a strong force (a state in which the structure of the silicon-containing resin powder is not changed and the distribution in the preparation is uniform) 100 of the above formulation is applied to the sample stage of a scanning electron microscope.
The number of primary particles of the silicon-containing resin powder when observed at a magnification of about 0 times is counted, and this is performed in several visual fields to obtain an average value. Let this average value be A. Next, the formulation in a state where the silicon-containing resin powder is strongly crushed is similarly observed. The average value of the number of particles at this time is defined as B. The composite coating referred to in the present invention is characterized in that the silicon-containing resin powder mechanically breaks down its inherent structure to form a composite coating with an organosilicon resin compound. When the value of is in the range of 0 to 0.8, it may be considered that the composite film is formed. Further, as the value of B / A is smaller, the characteristics such as touch and durability of the cosmetic effect are improved.
Then, in order to reduce the value of B / A, it is effective to use a silicon-containing resin powder such as an elastomer whose structure is easily collapsed and whose mechanical pulverization force is increased.

In the present invention, in 100% by weight of cosmetics,
(A) 0.5 to 40% by weight of silicon-containing resin powder (B) 0.1 to 4 organosilicon resin compound soluble in cyclic silicone
It has a blending ratio of 0% by weight. If the content of the silicon-containing resin powder is less than 0.5% by weight, the effect on the touch surface is insufficient,
If it exceeds 40% by weight, the powder has too much oil absorption and the preparation is solidified, so that there is a problem that production is difficult in practice. If the content of the organosilicon resin compound is less than 0.1% by weight, there is a problem that the effects such as makeup lasting cannot be obtained.
If it exceeds, there is a problem that the squeaky feeling of the organosilicon resin compound remains strong even after washing with cosmetics.

Further, among the above blending ratios, cosmetic 1
5 to 25% by weight of (A) silicon-containing resin powder in 00% by weight
The compounding ratio of the organosilicon resin compound (B) that dissolves in the cyclic silicone is preferably 1 to 20% by weight. Within this range, the characteristics of the present invention are often obtained more clearly.

The silicon-containing resin powder of the present invention and the organosilicon-based resin compound are distinguished from each other in that they are soluble in cyclic silicone even if they are both powders in a dry state. An organic silicon-based resin compound is one that dissolves in, and a silicon-containing resin powder that does not dissolve and maintains its powder shape. However, those that swell are treated as silicon-containing resin powder.

In the cosmetic of the present invention, in addition to the above-mentioned components, powders, oils, silicone oils, resins, surfactants, ultraviolet absorbers, perfumes, preservatives, which are usually used in cosmetics,
A bactericidal agent, a moisturizing agent, a viscous agent, a physiologically active ingredient, a solvent, salts, purified water and the like can be added at the same time.

Examples of powders are Red No. 104 and Red 2.
No. 01, yellow No. 4, blue No. 1, black No. 401, etc.
Lake pigments such as yellow No. 4 Al lake and yellow No. 203 Ba lake, nylon powder, silk powder, urethane powder, Teflon powder, cellulose powder and other polymers, yellow iron oxide, red iron oxide, black iron oxide, chromium oxide, Colored pigments such as carbon black, ultramarine blue and navy blue, white pigments such as zinc oxide, titanium oxide and cerium oxide, body pigments such as talc, mica, sericite and kaolin, pearl pigments such as mica titanium, barium sulfate and calcium carbonate, Metal salts such as magnesium carbonate, aluminum silicate and magnesium silicate, inorganic powder such as silica and alumina, fine particle titanium oxide, fine particle zinc oxide, fine particle iron oxide, alumina treated fine particle titanium oxide, silica treated fine particle titanium oxide, bentonite, smectite, etc. Is mentioned. There is no particular limitation on the shape and size of these powders.

These powders are conventionally known surface treatments, for example, fluorine compound treatment, silicone treatment, pendant treatment, silane coupling agent treatment, titanium coupling agent treatment, oil agent treatment, N-acylated lysine treatment, polyacryl. It may or may not be surface-treated in advance by acid treatment, metal soap treatment, amino acid treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment and the like.

Examples of the fluorine compound treatment include perfluoroalkyl phosphate ester and its salt, surface treatment using perfluoroalkylsilane, Teflon, perfluoroalkylcarboxylic acid, metal soap treatment, surface fluorination treatment by plasma, Examples include mechanochemical composite treatment with Teflon.

Examples of the oil agent are higher alcohols such as stearyl alcohol, cetyl alcohol, isostearyl alcohol, lauryl alcohol, hexadecyl alcohol, octyldodecanol, glycerin,
Polyhydric alcohols such as polyethylene glycol, 1,3-butanediol, propylene glycol and malbitol, fatty acids such as isostearic acid, stearic acid, undecylenic acid and oleic acid, myristyl myristate,
Hexyl laurate, decyl oleate, isopropyl myristate, isopropyl palmitate, hexyldecyl dimethyloctanoate, glyceryl monostearate, diethyl phthalate, ethylene glycol monostearate, esters such as octyl oxystearate,
Hydrocarbons such as liquid paraffin, petrolatum and squalane,
Lanolin, reduced lanolin, wax such as carnauba wax, mink oil, cacao butter, coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, oils and fats such as olive oil, ethylene / α-olefin / co-oligomer, liquid isoparaffin, paraffin, Examples include organic ultraviolet absorbers.

Examples of the silicone oil include, for example, cyclic silicone, dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane,
Biphenyl polysiloxane, polyether-modified organopolysiloxane, perfluoroalkyl / polyoxyalkylene co-modified organopolysiloxane, alkyl polyether co-modified silicone, sugar-modified silicone, polyhydric alcohol-modified silicone, alkyl-modified organopolysiloxane, modified organopolysiloxane Examples thereof include siloxane (provided that the position of the substituent may be a side chain or a terminal), fluorine-modified organopolysiloxane, amodimethicone, amino-modified organopolysiloxane, and the like. Of these, cyclic silicones and volatile linear silicones are particularly preferable. Preferred examples of cyclic silicones include octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane.

Further, silicone compounds such as fluorine compounds such as perfluoropolyether, fluorinated pitch, fluorocarbon and fluoroalcohol can also be used.

As the surface active agent, for example, an anionic surface active agent, a cationic surface active agent, a nonionic surface active agent or an amphoteric surface active agent can be used.

Examples of organic ultraviolet absorbers include 2-ethylhexyl paramethoxycinnamate, 2-ethylhexyl paradimethylaminobenzoate, and 2-hydroxy-4.
-Methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfuric acid, 2,2'-dihydroxy-4-methoxybenzophenone, p-methoxyhydrocinnamic acid diethanolamine salt, para-aminobenzoic acid (hereinafter abbreviated as PABA), Ethyldihydroxypropyl PABA, glyceryl PABA, homomenthyl salicylate, methyl-O-aminobenzoate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, octyldimethyl PABA, octyl methoxycinnamate, octyl salicylate, 2-phenyl-. Benzimidazole-5-sulfuric acid, triethanolamine salicylate, 3- (4-methylbenzylidene) camphor, 2,4
-Dihydroxybenzophenine, 2,2 ', 4,4'-
Tetrahydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-N-octoxybenzophenone, 4-isopropyldibenzoylmethane, butylmethoxydibenzoylmethane, 4- (3,4 -Dimethoxyphenylmethylene) -2,5-dioxo-1-imidazolidine propionate 2-ethylhexyl and the like. Further, it is also possible to use derivatives of these compounds and modified products with silicone, acryl and the like.

Examples of the sticking agent include polycarboxylic acid, polyacrylic acid, polyvinyl alcohol, agar, gellan gum, gum arabic, tragacanth gum, karaya gum, xanthan gum, tamarind gum, guar gum, alginic acid and carboxyvinyl polymer.

Examples of physiologically active ingredients are anti-inflammatory agents, tyrosinase activity inhibitors, plant extracts, vitamins,
Conventionally known components such as sulfur, urea, and a blood circulation promoter are exemplified.

Examples of salts include sodium chloride, potassium chloride, calcium chloride, calcium lactate, aluminum chloride, various phosphates and the like.

Examples of the solvent include ethanol, methanol, isopropyl alcohol, LPG, ether, hexane, N-methylpyrrolidone, isoprene glycol and the like.

Examples of the cosmetics of the present invention include oily foundations, emulsion foundations, water foundations, dual use foundations, white powder, blushers, pressed powders, cheek colors, undercovers, lipsticks, lip coats, eye shadows, eye liners. , Nail color, makeup base, emulsion, lotion, cream, sunscreen, hand lotion, conditioner, shampoo, dry shampoo, conditioner, hair liquid, hair treatment, cuticle coat,
Examples include setting agents, perfumes, deodorant agents, cleansing agents, face soaps, soaps and the like. Of these, use in makeup cosmetics and sunscreen agents is most effective.

[0034]

The present invention will be described in detail below with reference to examples and comparative examples.

The evaluation methods for various properties of the cosmetics used in Examples and Comparative Examples are shown below.

(1) Sensory Characteristic Test The feel (smoothness and oiliness) during application is determined by a specialist inspector 10
The number of people who answered "excellent" for smoothness and "existent" for oily feeling was shown by the name.

(2) Persistence of makeup effect Separate test products were used for the right and left faces, and the makeup effect on the left and right faces was evaluated 3 hours after application, and the result was "excellent". The number of people is shown.

(3) Transfer prevention property (makeup cosmetics only) After washing the face, apply a test product using only lotion, and apply 5
After minutes, rub the forehead with tissue paper to evaluate the transferability of makeup cosmetics to tissue paper,
The number of respondents who answered “excellent” is shown.

(4) Confirmation of Composite Film Formation A conductive double-sided tape was attached on a sample stand for a scanning electron microscope, and the sample was thinly applied with a finger on it. Magnification 10
Six fields of view of the sample were observed at 00 times, the values of A and B were calculated from the photograph, and the value of B / A was measured. The silicon-containing resin powders used in the examples and comparative examples described below are spherical in an unpulverized state, and their primary particle diameter is 1 to 20 μm.
It was distributed in m.

Example 1 Foundation A foundation was prepared according to the formulation shown in Table 1. The unit is shown in% by weight (the same applies hereinafter). Further, as the silicon-containing resin powder, trefil E-506C manufactured by Toray Dow Corning Silicone Co., which is a kind of silicone elastomer, was used, and as the organic silicon-based resin compound, a perfluoroalkyl-modified silicone resin was used.

[0041]

[Table 1]

After roughly mixing the components shown in Table 1, a wet ultrafine crusher Micros (manufactured by Nara Machinery Co., Ltd.) was used to obtain 2600
Grinding was performed for 10 minutes at rpm. The obtained product was filled in a tube to obtain a product.

Comparative Example 1 Foundation After roughly mixing the components shown in Table 1 of Example 1, the mixture was pulverized for 20 seconds at 300 rpm using a wet ultrafine pulverizer Micros. The obtained product was filled in a tube to obtain a product.

Comparative Example 2 Foundation A product was obtained in the same manner as in Example 1 except that cyclic silicone was used instead of the silicone elastomer in Table 1 of Example 1. The obtained product was filled in a container to obtain a product.

Comparative Example 3 Foundation A product was obtained in the same manner as in Example 1 except that cyclic silicone was used instead of the perfluoroalkyl-modified silicone resin in Table 1 of Example 1. The obtained product was filled in a container to obtain a product.

Comparative Example 4 Foundation A product was obtained in the same manner as in Example 1 except that cyclic silicone was used instead of the perfluoroalkyl-modified silicone resin and silicone elastomer shown in Table 1 of Example 1.
The obtained product was filled in a container together with a stainless ball to obtain a product.

Comparative Example 5 Foundation The amount of silicone elastomer in Table 1 of Example 1 was 4
After changing to 1% by weight and using a formulation whose quantitative correction was handled by changing the compounding amount of cyclic silicone, after roughly mixing each component, using a wet ultrafine pulverizer Micros, 1000 rpm
When it was pulverized for 1 minute, the product was not liquefied and was in a powder state, so the production was stopped.

Table 2 shows the evaluation results of Example 1 and Comparative Examples 1 to 4. In addition, Table 3 shows confirmation data of the composite coating.

[0049]

[Table 2]

[0050]

[Table 3]

From the results shown in Table 2, it can be seen that the examples are superior to the comparative examples in smoothness and less oily feeling, and also in the durability of the cosmetic effect and the effect of preventing transfer. Comparative Example 1
Is an example in which the crushing force is reduced as compared with Example 1, but as is clear from the value of B / A in Table 3, since the composite film is not formed, only the smoothness is excellent. All other items were inferior. Comparative Example 2 is an example in which the silicon-containing resin powder was removed, and due to the effect of the organosilicon resin compound, the cosmetic effect persistence and the transfer prevention effect were excellent, but the feel was poor. Comparative Example 3 is an example in which the organosilicon resin compound is removed, but the touch is excellent,
Other items were inferior. Then, Comparative Example 4 is an example in which the silicon-containing resin powder and the organic silicon-based resin compound are excluded, but it was inferior in all the items. On the other hand, Comparative Example 5 is an example in which the amount of the silicon-containing resin powder was increased beyond the range of the present invention, but the evaluation was not carried out because the product form was not obtained.

Example 2 Sunscreen Agent A sunscreen agent was prepared according to the formulation shown in Table 4. As the silicon-containing resin powder, trefil E-506C, a silicone elastomer, was used, and as the organosilicon-based resin compound, trimethylsiloxysilicic acid and a perfluoroalkyl-modified silicone resin were used.

[0053]

[Table 4]

After roughly mixing the components shown in Table 4, pulverization was performed for 20 minutes at 2600 rpm using a wet ultrafine pulverizer Micros. The obtained product was filled in a tube to obtain a product.

Comparative Example 6 Sunscreen Agent The components shown in Table 4 of Example 2 were roughly mixed and then pulverized for 20 seconds at 300 rpm using a wet ultrafine pulverizer Micros. The obtained product was filled in a tube to obtain a product.

Comparative Example 7 Sunscreen Agent A product was obtained in the same manner as in Example 2 except that cyclic silicone was used instead of the silicone elastomer in Table 4 of Example 2. The obtained product was filled in a container to obtain a product.

Comparative Example 8 Sunscreen Agent A product was obtained in the same manner as in Example 2 except that cyclic silicone was used instead of trimethylsiloxysilicic acid and perfluoroalkyl-modified silicone resin in Table 4 of Example 2. The obtained product was filled in a container to obtain a product.

Comparative Example 9 Sunscreen Agent A product was prepared in the same manner as in Example 2 except that trimethylsiloxysilicic acid shown in Table 4 of Example 2 and a perfluoroalkyl-modified silicone resin and cyclic silicone were used in place of the silicone elastomer. Obtained. The obtained product was filled in a container together with a stainless ball to obtain a product.

Comparative Example 10 Sunscreen Agent A sunscreen agent having the formulation shown in Table 5 was obtained. As the silicone elastomer, Trefil E-505C manufactured by Toray Dow Corning Silicone Co., Ltd. was used.

[0060]

[Table 5]

After roughly mixing the components shown in Table 5, pulverization was performed for 20 minutes at 2600 rpm using a wet ultrafine pulverizer Micros. The obtained product was filled in a container together with a stainless ball to obtain a product.

Table 6 shows the evaluation results of Example 2 and Comparative Examples 6-9. In addition, Table 7 shows the confirmation data of the composite coating.

[0063]

[Table 6]

[0064]

[Table 7]

From the results shown in Table 6, it can be seen that the examples are superior to the comparative examples in smoothness and less oily feeling, and also in the durability of the cosmetic effect. Comparative Example 6 is an example in which the pulverizing force is reduced as compared with Example 2, but as is clear from the B / A value in Table 7, since no composite film is formed, only smoothness is excellent. However, all other items were inferior. The results of Comparative Examples 7, 8 and 9 were similar to those of Comparative Examples 2, 3, and 4. Comparative Example 10 is an example in which the amount of the organosilicon resin compound was increased beyond the range of the present invention, but it had high adhesiveness and had a problem in the touch surface, and itching on the skin after application was caused. , Evaluation of cosmetic effect persistence was discontinued.

[0066]

From the above, it is clear that the present invention provides a cosmetic composition which is excellent in touch, durability of cosmetic effect and transfer effect.

Claims (2)

[Claims] 1. A blending ratio of 0.5 to 40% by weight of (A) silicon-containing resin powder (B) 0.1 to 40% by weight of an organosilicon resin compound soluble in cyclic silicone in 100% by weight of cosmetics. And a composite film comprising (A) and (B) when used, which is capable of forming a composite film. 2. The cosmetic according to claim 1, wherein the organosilicon-based resin compound soluble in the cyclic silicone is selected from trimethylsiloxysilicic acid, a fluorine-modified silicone resin, and an acrylated silicone graft copolymer. .