JP3513867B2 - Nail polish - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a nail enamel containing a film-forming agent and an organic solvent, and a thickening agent powder treated with a silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain. The present invention relates to a nail enamel, which comprises: That is, the present invention aims to provide a nail enamel which has no sedimentation of an inorganic pigment or a pearlescent agent, is excellent in stability over time, and has good coating film physical properties and usability such as long-lasting makeup.

[0002]

2. Description of the Related Art Generally, a nail varnish is blended with a film-forming agent, a resin, a plasticizer, a solvent and the like, and an inorganic pigment such as titanium, mica and titanium mica for imparting a make-up effect and a pearlescent agent. . However, these inorganic pigments and pearlescent agents have a large specific gravity and settle out over time, which may adversely affect the appearance, cosmetic effect, and usability of the nail enamel, which may cause quality deterioration. Conventionally, various studies have been conducted such as compounding an organic clay mineral in order to prevent sedimentation of a substance having a large specific gravity in a nail enamel and maintain dispersion stability. For example, a method in which an organic clay mineral and an inorganic acid or an organic acid are mixed and dispersed, and then a pearling agent is dispersed (Japanese Patent Laid-Open No. Sho 4)
No. 7-40375) or a method in which an organic clay mineral and hydrophobic silica are blended to prevent sedimentation / separation over time.

[0003]

However, in the method of adding an inorganic acid or an organic acid, even if the precipitation of the pearlescent agent can be prevented, the fading of the organic pigment is promoted and the physical properties of the coating film are deteriorated. There was a problem and it was not always satisfactory. In addition, the method of adding hydrophobic silica is not always satisfactory in terms of usability, although it is possible to ensure stability over time, but depending on the blending amount, viscosity increases over time. In view of such a situation, the present inventors have earnestly studied to develop a nail enamel excellent in stability over time, coating film properties, and usability, and as a result, a film-forming agent and an organic solvent were contained. By incorporating a thickening powder treated with a silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain in a nail enamel, the stability over time is extremely excellent, and the coating film physical properties and use The present invention has been completed by finding a nail enamel having excellent properties.

[0004]

Means for Solving the Problems That is, the present invention provides a nail varnish containing a film-forming agent and an organic solvent, which is treated with a silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain to impart a thickening property. Powder (however, thickening
In the imparting powder, the cations existing between layers are quaternary cations.
Is cation exchanged with a cationic surfactant containing nitrogen
(Excluding smectite-type clay minerals) is provided. The structure of the present invention will be described below.

The thickening powder used in the present invention is used in paints, nail polishes, emulsions, foundations, etc. as a thickening agent or as an auxiliary agent for other gelling agents , and generally has a thickening action. der those having is,
For example, calcium carbonate, silica, calcium silicate,
Magnesium oxysulfate and the like can be mentioned, and if necessary, a composite of these powders can be used. Commercially available products include Aerosil (Aerosil 200, 300, 380, R972 manufactured by Nippon Aerosil Co., Ltd.) and Sylysia (Silicia 250, 3 manufactured by Fuji Silysia Ltd.).
10 etc.), Xonotlite (manufactured by Ube Chemical Industry Co., Ltd.), Mosheiji (manufactured by Ube Chemical Industry Co., Ltd.), MSK (MSK-A, MSK-C manufactured by Maruo Calcium Co., Ltd.) and the like. Furthermore, in order to obtain good usability while ensuring stability over time, a smaller particle size is suitable, and preferably 10 μm.
It is particularly preferable to use silica because it has a particle size of m or less, and among the above powders, one having a higher transparency can be obtained.

The silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain (hereinafter simply referred to as "silylating agent") used in the present invention has a polyoxyethylene chain and / or a polyoxypropylene chain. The silylating agent is not particularly limited as long as it is a silylating agent, but a silylating agent represented by the following general formula (1) is preferable. _{^{(R 1 O) a R 2}} b Si (R 3 O) p (C 2 H 4 O) q (C 3 H 6 O) r R 4 ... (1) ( In the formula, R ¹ having 1 to 10 carbon atoms Alkyl group, R ² is an alkyl group having 1 to 10 carbon atoms or a phenyl group, R ³ is a divalent hydrocarbon group having 2 to 5 carbon atoms, and R ⁴ is hydrogen or 1 to carbon atoms.
10 alkyl group, or _{^{-R 3 SiR 2 b (OR 1}} ) a _a group. Further, a is an integer of 1 to 3, b is an integer of 0 to 2, and a + b is 3. p is an integer of 0 or 1, q is 0 to 2
00 is an integer, r is an integer of 0 to 200, and q + r is 3
Is an integer of ˜200. )

To give a concrete example, for example, (CH
₃ O) ₃ SiC ₄ H ₈ O (C ₂ H ₄ O) ₁₀ H, (CH ₃ O) ₃ S
_{iC 3 H 6 O (C 2} H 4 O) 10 CH 3, (C 2 H 5 O) 3 SiC
₃ H ₆ O (C ₂ H ₄ O) ₂₀ (C ₃ H ₆ O) ₁₀ CH ₃ , (CH
₃ O) ₃ SiC ₃ H ₆ O (C ₂ H ₄ O) ₃₀ C ₂ H ₅ , (CH
₃ O) ₂ (CH ₃ ) SiC ₃ H ₆ O (C ₂ H ₄ O) ₅ C ₃ H ₇ ,
_{(CH 3 O) 3 SiC 4} H 8 O (C 2 H 4 O) 10 C 4 H 9, (C
₂ H ₅ O) (CH ₃ ) ₂ SiC ₅ H ₁₀ O (C ₂ H ₄ O) ₂₀ C
H ₃ , (CH ₃ O) ₃ Si (C ₃ H ₆ O) ₁₀ CH ₃ , (CH _{3
O) 3 SiC 2 H 4 O} (C 3 H 6 O) 10 CH 3, (CH 3 O) 3
_{SiC 3 H 6 O (C 2} H 4 O) 10 C 3 H 6 Si (OCH 3) 3,
Etc. These silylating agents may be added as needed.
One kind or two or more kinds can be used.

The method of treating the thickening powder with the silylating agent of the present invention is not particularly limited,
Disperse the powder in water, alcohol, or a mixture thereof,
A silylating agent similarly dissolved in water, alcohol or a mixture thereof is added to this dispersion liquid, and after stirring treatment or ball mill treatment, moisture is removed, and a wet method of drying, heat treatment and pulverization, or silylation of powder is carried out. Spray the agent, dry,
A dry method of heat treatment may be used.

The treatment amount of the silylating agent varies depending on the shape and type of the thickening powder, the type of treating agent and the treatment method, and is not particularly limited, but in terms of coating film performance and stability of viscosity with time, 0.01-30.0 for thickening powder
The weight% (hereinafter simply indicated as [%]) is preferable, and 0.1 to 15.0% is more preferable.

The compounding amount of the thickening powder (hereinafter simply referred to as "treated powder") treated with the silylating agent is not particularly limited, but it is preferably 0. 01 to 20%, more preferably 0.01 to 10%
%. These treated powders may be of one kind or two kinds as required.
More than one species can be used.

The film forming agent used in the present invention includes
It is not particularly limited as long as it is usually used for nail enamel, for example, nitrocellulose, alkyd resin,
Acrylic resins, toluene sulfonamide resins, silicone resins and the like can be mentioned, and one or more of them can be used.

The organic solvent used in the present invention is not particularly limited as long as it is usually used for nail enamel, and examples thereof include aromatic hydrocarbons, acetic acid esters, alcohols and cellosolves. One kind or two or more kinds of them can be used, but a particularly remarkable effect can be obtained in a so-called toluene-free type nail enamel composed of a non-aromatic hydrocarbon.

In addition to the above essential components, the nail enamel of the present invention contains a plasticizer, a clay mineral, a pigment, a surfactant, an antioxidant, a fragrance, an ultraviolet absorber, a cosmetic ingredient or other raw materials for cosmetics. You can

[0014]

The nail enamel of the present invention includes nail enamel, enamel top coat, enamel base coat and the like.

[0015]

EXAMPLES The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto. Production Example 1. Treated powder A Silica (Aerosil 300, average particle size 0.007 μm)
100 g was dispersed in 1000 g of methanol to obtain a uniform slurry. To this slurry was added 30 g of a 10% aqueous solution of a silylating agent represented by the following formula, and the mixture was treated with a ball mill for 5 minutes. After drying the treated slurry under reduced pressure, 100
The heat treatment was performed at 1 ° C. for 1 hour. This was washed with ethanol, dried and pulverized to obtain a treated powder. _{(CH 3 O) 3 SiC 3} H 6 O (C 2 H 4 O) n CH 3 ( wherein, a n = 30 to 34.)

Manufacturing Example 2. Treated powder B Calcium silicate (Zonotolite, average particle size 0.25μ
m) 100 g was dispersed in 1000 g of methanol to obtain a uniform slurry. 25 of the silylating agent used in Production Example 1
% Aqueous solution (40 g) was added, and the mixture was treated with a ball mill for 5 minutes. The treated slurry was dried under reduced pressure and then heat-treated at 100 ° C. for 1 hour. This was washed with ethanol, dried and pulverized to obtain a treated powder.

Manufacturing Example 3. Treated powder C Silica (Aerosil 200, average particle size 0.012 μm)
100 g was dispersed in 1000 g of methanol to obtain a uniform slurry. To this slurry, 100 g of a 25% aqueous solution of a silylating agent represented by the following formula was added and treated with a ball mill for 5 minutes. After drying the treated slurry under reduced pressure, 10
It heat-processed at 0 degreeC for 1 hour. Wash it with ethanol,
After drying, it was pulverized to obtain a treated powder. _{(CH 3 O) 3 Si (} C 3 H 6 O) n CH 3 ( wherein, a n = 10 to 14)

Production Example 4. Treated powder D 100 g of silica (Aerosil 200) was added to methanol 10
It was dispersed in 00 g to form a uniform slurry. 10 g of a 10% aqueous solution of the silylating agent used in Production Example 3 was added to this slurry.
Was added and treated with a paint conditioner for 10 minutes. After drying the treated slurry under reduced pressure, 100 ° C
And heat treated for 1 hour. This was washed with ethanol, dried and pulverized to obtain a treated powder.

Examples 1 to 6 and Comparative Examples 1 to 4 Nails A nail enamel having the composition shown in Table 1 was prepared, and it had a long-lasting makeup (difficulty peeling and hard wearing) and usability over time (elongation). Goodness) and stability over time were evaluated by the following methods. The results are also shown in Table 1.

[0020]

[Table 1]

(Production Method) Examples 1 to 6 and Comparative Examples 1 to 4 A. A part of the components 1 to 4 and 5 and 6 to 8 are mixed and dissolved.
B. The rest of the component 5 and the component 9 are mixed and dispersed. After this is uniformly dispersed in A, the components 10 to 21 are added and dispersed and filled in a container to obtain a product.

(Evaluation Method and Criteria) 1. Sensory evaluation Each sample was subjected to a usage test by 20 specialist panels, and the makeup retention (difficulty to peel off and hard to apply) and usability (spreadiness after 2 days and 2 months after production) were evaluated ( 1) Five-level evaluation was performed using the absolute evaluation standard, and the average value of the scores for each sample was evaluated using (2) four-level evaluation standard. (1) Absolute evaluation standard 5 points: Very good 4 points: Good 3 points: Normal 2 points: Slightly bad 1 point: Poor (2) 4 step evaluation standard ◎: 4.0 to 5.0 points ○: 3. 0 to less than 4.0 points Δ: 2.0 to less than 3.0 points x: 1.0 to less than 2.0 points

2. Stability evaluation over time Each sample was filled in a glass transparent container and set in a constant temperature bath at 40 ° C. for 1 month, and then sedimentation of appearance, presence or absence of separation,
The increase in viscosity over time was confirmed. The evaluation was performed according to the following criteria. Criteria (sedimentation, separation) A: No change. ◯: Slight sedimentation or separation is observed. Δ: Sedimentation and separation are observed. X: Vigorous sedimentation and separation are observed.

As is clear from the above results, in the nail enamel of Examples 1 to 6 relating to the product of the present invention, occurrence of sedimentation and separation color unevenness was observed as compared with the nail enamel of Comparative Examples 1 to 4. It can be seen that the composition has extremely good stability over time, and has far superior properties in all respects in terms of makeup retention and usability over time. On the other hand, the nail enamel of Comparative Example did not satisfy all the items of stability over time, makeup retention, and usability over time.

Example 7 Base coat (component) (%) 1. Nitrocellulose 12.0 2. Toluenesulfonamide resin 3.0 3. Alkyd resin 3.0 4. Acetyltributyl citrate 3.0 5. Butyl acetate 26.5 6. Ethyl acetate 29.0 7. Isopropyl alcohol 5.0 8. n-butanol 1.5 9. Treated powder D 15.0 10. Nylon fiber 2.0 (manufacturing method) A. Ingredient 9 is mixed and dispersed in a part of ingredient 5. B. 1 to 8 are mixed and dissolved, and A is added and dispersed therein. C. Ingredient 10 is added and dispersed in B and filled in a container to obtain a product.

The product of the present invention was excellent in usability over time, no aggregation or sedimentation of the powder was observed over time, and was excellent in adhesion, which is a function as a base coat.

Example 8 Top coat (component) (%) 1. Nitrocellulose 15.0 2. Toluenesulfonamide resin 5.0 3. Acrylic styrene resin 5.0 4. Acetyltributyl citrate 5.0 5. Butyl acetate 33.48 6. Ethyl acetate 30.0 7. Isopropyl alcohol 5.0 8. n-butanol 1.5 9. Treated powder D 0.02 (manufacturing method) A. Ingredient 9 is mixed and dispersed in a part of ingredient 5. B. 1 to 8 are mixed and dissolved, A is added and dispersed therein, and filled in a container to obtain a product.

The product of the present invention was excellent in usability over time, no aggregation or precipitation of powder was observed over time, and was excellent in makeup retention as a function as a top coat.

[0029]

EFFECTS OF THE INVENTION The nail enamel of the present invention has excellent coating performance such as longevity and gloss, and sedimentation caused by pigment aggregation.
No occurrence of color unevenness was observed, and in particular, the usability over time, which could not be realized in the past, was good.

Claims (7)

(57) [Claims] 1. A film-forming agent and a nail enamel which contains an organic solvent, increasing treated with a silylating agent having a polyoxyethylene chain and / or polyoxypropylene chains viscosity imparting powder (however, thickening grant The powder is a cation that exists between layers.
Is a cationic surfactant containing quaternary cationic nitrogen.
Claw-exchanged smectite-type clay minerals are included ) to prepare a nail enamel. 2. A silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain is represented by the following general formula (1):
The nail enamel according to claim 1, which is a silylating agent represented by: _{^{(R 1 O) a R 2}} b Si (R 3 O) p (C 2 H 4 O) q (C 3 H 6 O) r R 4 ... (1) ( In the formula, R ¹ having 1 to 10 carbon atoms Alkyl group, R ² is an alkyl group having 1 to 10 carbon atoms or a phenyl group, R ³ is a divalent hydrocarbon group having 2 to 5 carbon atoms, and R ⁴ is hydrogen or 1 to carbon atoms.
10 alkyl group, or _{^{-R 3 SiR 2 b (OR 1}} ) a _a group. Further, a is an integer of 1 to 3, b is an integer of 0 to 2, and a + b is 3. p is an integer of 0 or 1, q is 0 to 2
00 is an integer, r is an integer of 0 to 200, and q + r is 3
Is an integer of ˜200. ) 3. The treatment amount of the silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain is 0.01 to 30% by weight based on the powder to be treated. Nail polish. 4. The compounding amount of the powder treated with a silylating agent having a polyoxyethylene chain and / or a polyoxypropylene chain is 0.01 to 20% by weight, or claim 2 or claim 3. Nail polish. 5. The nail enamel according to claim 1, 2, 3 or 4, wherein the thickening-imparting powder has an average particle diameter of 10 μm or less. 6. The nail enamel according to claim 1, wherein the thickening-imparting powder is silica. 7. The nail enamel according to claim 1, 2, 3, 4, 5 or 6, wherein the organic solvent is a non-aromatic hydrocarbon.