JP2510579B2 - Water-in-oil type beauty nail composition - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a water-in-oil type nail enamel composition having improved safety for nails. More specifically, it has excellent separation stability, ease of application, gloss of the coating, and peeling properties, and has high safety for nails. Even if it is used continuously, two-fingered nails (the surface of the nails at the tip is like mica) The present invention relates to a water-in-oil type nail enamel composition which is resistant to peeling.

[Prior Art] In recent years, the quality of solvent-type nail enamel has improved remarkably due to the progress of nitrocellulose lacquer, and it has become indispensable as one of makeup cosmetics. Among its quality characteristics, nail safety is particularly important.

Conventionally, separation stability, ease of application, which is required for nail polish,
Among various properties such as gloss of coating film, peeling property, and safety for nails, a technique relating to a resin composition and a solvent composition for improving safety for nails is disclosed.

As a technology for improving resin safety, Japanese Patent Publication No. 50-1333
Japanese Unexamined Patent Publication (Kokai) No. 6 discloses a technique in which sucrose acetate isobutyrate is compounded in place of the sulfonamide resin which decomposes to release formalin and adversely affects the nail. Japanese Patent Application Laid-Open No. 54-151142 discloses a technique of incorporating sucrose benzoate / sucrose acetate isobutyrate in place of the toluenesulfonamide / formaldehyde resin. Furthermore, Japanese Examined Japanese Patent Publication 57-27
No. 082 discloses a technique of incorporating a modified alkyd resin in place of the allylsulfone amide condensate.
However, these are all related to solvent-type nail enamel, and do not contain water as a prescription constituent component thereof.

As a technique for improving the safety of the solvent, JP-A-54-
Japanese Patent No. 160753 discloses a nail enamel containing no aromatic hydrocarbon such as toluene or xylene. Further, JP-A-55-83708 discloses a nail lacquer which is harmless to the human body, among the components of the conventional cellulose-based nail lacquer, in which the solvent is replaced by methylene chloride.
However, these are all related to the solvent type nail enamel like the technique related to the resin in the previous period, and do not contain water as a prescription constituent component thereof.

By the way, normally nails have 7-12% moisture and 0.1-1.0%
, But the tip of the nail (free green) is dry because less water is supplied from the nail bed compared to the nail plate. Due to the small amount of water, chipping, breaking, and double nails are likely to occur.

Since the conventional solvent-type nail enamel does not contain water, it is impossible to replenish water to the toes during use. Further, there is a defect that the safety is not sufficient, for example, due to the dehydration effect of the solvent, the nails of two sheets are deteriorated by continuous use.

In addition, as a technique for nail enamel that does not contain a solvent, Japanese Patent Laid-Open No.
Japanese Patent Application Laid-Open No. 54-28836 describes a nail coating composition comprising an aqueous emulsion liquid polymer obtained by aqueous emulsion copolymerization of a specific monomer. Furthermore, Japanese Patent Publication No. 55-43445 discloses that
An aqueous nail varnish containing a polymer emulsion as a base is disclosed. However, these water-based nail polishes contain a large amount of water, which has a very large heat of vaporization and specific heat compared to the solvent, and therefore has a "cool feeling" when applied, and for people with thin nails. There was a drawback that this "cool feeling" was a strong stimulus. Further, these water-based nail enamel have a drawback in that they are inferior in water resistance and adhesiveness to nails as compared with the solvent-type nail enamel, and therefore, the peeling property is not sufficient.

[Problems to be solved by the invention]

A first object of the present invention is to maintain various properties required as a nail enamel, that is, separation stability, easiness of application, gloss of a coating film, peeling property, ease of removal with a remover, and the like. It is an object of the present invention to provide a water-in-oil type nail enamel composition which has improved nail safety and is unlikely to become the second-rank nail even after continuous use.

A second object of the present invention is to provide a water-in-oil type nail enamel composition having improved nail safety compared with the water-in-oil type nail enamel composition of the present invention.

A third object of the present invention is to provide a water-in-oil type nail enamel composition which has improved odor stability as well as improved nail safety and the like.

[Means for solving problems]

According to the first aspect of the present invention, there is provided a water-in-oil type nail enamel composition containing a resin and an organic solvent according to the first aspect of the present invention. This can be achieved by a water-in-oil type nail enamel composition characterized in that a water-compounding compound having an individual number and at least one lipophilic portion is incorporated.

According to a second aspect of the present invention, said second object is
This can be achieved by the water-in-oil type nail enamel composition of the present invention, which further contains a moisturizer.

According to a third aspect of the present invention, there is provided the above-mentioned third object.
This can be achieved by the water-in-oil type nail enamel composition of the present invention, which further contains an odor stabilizer.

 Hereinafter, the configuration of the present invention will be described in detail.

As used herein, the term “nail cosmetics” refers to makeup cosmetics applied to the nails in order to protect or make the nails (fingernails or toenails) beautiful. The nail enamel of the present invention is, in particular, nail enamel, nail enamel base coat and the like.

An ordinary nail enamel composition contains a resin and an organic solvent as main components, and examples thereof include nitrocellulose. The present invention can be applied to any of these compositions.

The water-blending compound used in the present invention is a compound having at least one hydrophilic portion and at least one lipophilic portion in the molecule, and is a compound capable of blending water in the composition. means.

Here, the hydrophilic portion in the molecule is a polar atomic group having a strong interaction with water, and examples thereof include a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a sulfuric acid group or a salt thereof, and a phosphorus group. Acid groups or salts thereof, amino groups or salts thereof, hydroxyl groups, ethylene oxide groups, ether bond moieties, nitrile groups, carbonyl groups, amide groups, nitro groups, imide groups, mercaptan groups and the like.

The lipophilic moiety in the molecule is a non-polar atomic group having a very low affinity for water and therefore a high affinity for oil, such as a linear or branched saturated or unsaturated group. Are aliphatic hydrocarbon groups, saturated or unsaturated alicyclic hydrocarbon groups, aromatic hydrocarbon groups, fluorocarbon groups or organosilicon groups.

In the nail enamel composition of the present invention, water and the compound for water blending are blended in the composition as an internal phase of water-in-oil type (W / O type). That is, the resin, the organic solvent, and the like form an outer phase that is a continuous phase as an oil phase portion, and the aqueous phase portion is separated as an inner phase of fine particles.

The content of water is 0, based on the total weight of the nail varnish composition.
5 to 30% by weight, preferably 1 to 25% by weight, particularly preferably 3 to 15% by weight. If the content of water is less than 0.5% by weight, the safety for nails is not improved, especially the effect of preventing two nails is not sufficient, and if it exceeds 30% by weight, the feeling of "coolness" at the time of application becomes strong, especially for people with thin nails. In the case of, it is not preferable because it becomes a strong stimulus.

The weight ratio of the water compound and water is (0.1 to 20).
0): 100, preferably (0.3-50): 100, particularly preferably (0.5-20): 100. If the weight ratio of the water-blending compound to water is less than 0.1%, the separation stability of the W / O type emulsion system will be poor, and if it exceeds 200%, the gloss and peeling properties of the coating film will be poor, such being undesirable.

The water-blending compound used in the present invention is, for example, a water-soluble polymer, an oil-soluble polymer or a surfactant.

In the present specification, the water-soluble polymer has an average molecular weight of 1,000.
~ 2 million, especially 2000-1 million compounds.

The water-soluble polymer used in the present invention is, for example, a cellulose-based, acrylic-based, vinyl-based, polyamide-based, protein-based, or polysaccharide water-soluble polymer. These water-soluble polymers can be used alone or in combination of two or more. Cellulosic water-soluble polymers are, for example, hydroxyethyl cellulose (Natrosol 250LR; Hercules, etc. in the United States) and hydroxypropylmethyl cellulose (Metroses TC-5: Shin-Etsu Chemical, etc.), and acrylic water-soluble polymers are, for example, methacrylic acid ester amphoteric polymers. (Yukaformer AM-75W, WH; Mitsubishi Yuka, etc.), sodium polyacrylate (Aron A-20P; Toa Gosei Kagaku, etc.), and the vinyl-based water-soluble polymer is, for example, polyvinyl alcohol (PVA).
EG-05; Japan Synthetic Chemical Industry, etc.), methyl vinyl ether-maleic anhydride copolymer (Gantrez AN-11)-
General aniline, etc., and the polyamide water-soluble polymer is, for example, α- (N-dimethylamino) -ε-caprolactam-ε-caprolactam copolymer-modified nylon (AQ-
Nylon; Toray et al.), And the protein-based water-soluble polymer is, for example, sodium caseinate or gelatin. The water-soluble polysaccharide is, for example, hyaluronic acid or its salts, sodium chondroitin sulfate, pullulan, or the like. The water-soluble polymer is 0.1 to 200% by weight of water, preferably
It is used in an amount of 0.3 to 20% by weight, particularly preferably 0.5 to 15% by weight.

In the present specification, the oil-soluble polymer has an average molecular weight of 1,000.
~ 1 million, especially 2000-500,000 compounds. The oil-soluble polymer used in the present invention is, for example, a cellulose-based, acrylic-based, amino acid-based, or protein-based oil-soluble polymer.
These oil-soluble polymers can be used alone or in combination of two or more. Cellulosic oil-soluble polymers are, for example, ethyl hydroxyethyl cellulose (EHEC-LOW;
Hercules, etc.), dimethylditallow ammonium cellulose sulfate (SOLOID: Kerco, etc.), ethyl cellulose (ethyl cellulose N-7; Hercules, etc.), nitrocellulose (nitrocellulose SS type 1/2)
Sec; Hercules, etc.), the acrylic oil-soluble polymer is, for example, a methacrylate ester amphoteric polymer (Yukaformer AM-75; Mitsubishi Yuka, etc.), polyacrylonitrile, and the amino acid-based oil-soluble polymer is, for example, DL-alanine, the protein-based oil-soluble polymer is, for example, hydrolyzed collagen (Promois A; Sokawa, etc.), and the other oil-soluble polymer is dextrin fatty acid ester (Leopearl KL; Kenjiro Iwase Shoten, etc.) .

The oil-soluble polymer is selected in the range of 0.1 to 200% by weight with respect to water, preferably 0.5 to 100% by weight.

The surfactant used in the present invention is a nonionic, anionic, cationic, or amphoteric surfactant, and one or more of these can be used.

Examples of lipophilic nonionic surfactants include sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trinolate and penta-. Two
-Sorbitan fatty acid esters such as diglycerol sorbitan ethylhexylate, diglycerol sorbitan tetra-2-ethylhexylate, monocottonseed oil fatty acid glycerin, glyceryl monoerucate, glyceryl sesquioleate, glyceryl monostearate, α-α'-pyroic acid oleate Glycerin glutamate, glycerin polyglycerin fatty acid such as glycerin monostearate malic acid, propylene glycol fatty acid ester such as propylene glycol monostearate, hydrogenated castor oil derivative, glycerin alkyl ether and the like can be mentioned.

Examples of the hydrophilic nonionic surfactant include polyoxyethylene-sorbitan monooleate, polyoxyethylene-sorbitan monostearate, polyoxyethylene-sorbitan tetraoleate, and other polyoxyethylene-sorbitan fatty acid esters, and polyoxyethylene-sorbitan tetraoleate. Oxyethylene-sorbit monolaurate, polyoxyethylene-sorbit monooleate, polyoxyethylene-sorbit pentaoleate, polyoxyethylene-sorbit monostearate, and other polyoxyethylene-sorbit fatty acid esters, polyoxyethylene-glycerin Polyoxyethylene-glycerin fatty acid ester such as monostearate, polyoxyethylene-glycerin monoisostearate, polyoxyethylene-glycerin triisostearate Polyoxyethylene-monooleate, polyoxyethylene-distearate, polyoxyethylene-monodioleate, polyoxyethylene-fatty acid esters such as ethylene glycol distearate, polyoxyethylene-lauryl ether, polyoxyethylene-oleyl ether, poly Polyoxyethylene-alkyl ethers such as oxyethylene-stearyl ether, polyoxyethylene-behenyl ether, polyoxyethylene-2-octyldodecyl ether, polyoxyethylene-cholestanol ether,
Polyoxyethylene-octylphenyl ether, polyoxyethylene-nonylphenyl ether, polyoxyethylene-dinonylphenyl ether and other polyoxyethylene-alkylphenyl ethers, pluronic and other pluronic types, polyoxyethylene-polyoxypropylene- Cetyl ether, polyoxyethylene-polyoxypropylene-2-decyl tetradecyl ether, polyoxyethylene-polyoxypropylene-monobutyl ether, polyoxyethylene-polyoxypropylene-hydrogenated lanolin, polyoxyethylene-polyoxypropylene-glycerin Polyoxyethylene-polyoxypropylene-alkyl ethers such as ethers, tetrapolyoxyethylene-tetrapolyoxypropylene- such as Tetronic Tile diamine condensates, polyoxyethylene-castor oil, polyoxyethylene-hardened castor oil, polyoxyethylene-hardened castor oil monoisostearate, polyoxyethylene-hardened castor oil triisostearate, polyoxyethylene-hardened Castor oil monopyroglutamic acid monoisostearate diester,
Polyoxyethylene- hydrogenated castor oil Polyoxyethylene-castor oil such as maleic acid Hydrogenated castor oil derivative, polyoxyethylene- beeswax lanolin derivative such as polyoxyethylene-sorbit beeswax, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide , Alkanolamides such as fatty acid isopropanolamide, polyoxyethylene, propylene glycol fatty acid ester, polyoxyethylene-alkylamine, polyoxyethylene-fatty acid amide, sucrose fatty acid ester, polyoxyethylene-nonylphenylformaldehyde condensate, alkylethoxydimethyl Examples thereof include amine oxide and trioleyl phosphoric acid.

Examples of the anionic surfactant include a base for soap, a fatty acid soap such as sodium laurate and sodium palmitate, a higher alkyl sulfate ester salt such as sodium lauryl sulfate and potassium lauryl sulfate, and polyoxyethylene-lauryl sulfate triethanolamine. , Polyoxyethylene, alkyl ether sulfates such as sodium lauryl sulfate, N-acyl sarcosinic acid such as sodium lauroyl sarcosine, N-myristoyl-N-methyl taurine sodium, coconut oil fatty acid methyl tauride sodium, lauryl methyl tauride sodium Higher fatty acid amide sulfonates such as sodium polyoxyethylene-oleyl ether phosphate, phosphoric acid ester salts such as polyoxyethylene-stearyl ether phosphate, di-2- Sodium tylhexyl sulfosuccinate, sodium monolauroyl monoethanolamide polyoxyethylene sulfosuccinate, sulfosuccinates such as sodium lauryl polypropylene glycol sulfosuccinate, sodium n-dodecylbenzenesulfonate, triethanolamine n-dodecylbenzenesulfonate, n-dodecyl Alkylbenzene sulfonates such as benzene sulfonic acid, N-acyl glutamate such as monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, mono-sodium N-myristoyl-L-glutamate, hardened coconut oil fatty acid glycerin sodium sulfate, etc. Higher fatty acid ester sulfate ester salt, sulfated oil such as funnel oil, polyoxyethylene-alkyl ether carboxylic acid, Oxyethylene-alkyl allyl ether carboxylate, α-olefin sulfonate, higher fatty acid ester sulfonate, secondary alcohol sulfate ester salt, higher fatty acid alkylolamide sulfate ester salt, lauroyl monoethanolamide sodium succinate, N- Examples thereof include palmitoyl aspartate ditriethanolamine and sodium caseinate.

Examples of the cationic surfactant include stearyl trimethyl ammonium chloride, alkyl trimethyl ammonium salts such as lauryl trimethyl ammonium chloride, distearyl dimethyl ammonium dialkyl methyl ammonium salt, and poly (N, N'-dimethyl-3,5- Methylenepiperidinium), an alkylpyridinium salt such as cetylpyridinium chloride, an alkyl quaternary ammonium salt, an alkyldimethylbenzylammonium salt, an alkylisoquinolinium salt, a dialkylmorpholinium salt,
Polyoxyethylene-alkylamine, alkylamine salt, polyamine fatty acid derivative, amyl alcohol fatty acid derivative, benzalkonium chloride, benzethonium chloride,
Cationic polymer, β-NN-dimethyl acrylate-
Examples thereof include N-ethylammonioethyl salt vinylpyrrolidone copolymer and the like.

Examples of the amphoteric surfactant include 2-undecyl-
N, N, N- (hydroxyethylcarboxymethyl) -2-
Imidazoline sodium, 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy 2
Imidazoline amphoteric surfactants such as sodium salts, 2
-Heptadecyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, betaine lauryldimethylaminoacetate betaine, alkyl betaine, amidobetaine, sulfobetaine, and other betaine surfactants, N-lauryl β-alanine, N-stearyl β -Amino acid salts such as alanine.

The surfactant is used in the range of 0.1 to 200% by weight with respect to water, preferably 0.2 to 100% by weight.

Further, the surfactant may be added in the form of a complex with an organically modified bentonite which is generally used for preventing the separation of the pigments usually incorporated in the nail enamel composition.

When nitrocellulose is used in the composition of the present invention, it is possible to use well-known ones that have been used conventionally. For example, Hercules RS type (nitrogen content 11.5 ~
12.2%) Nitrocellulose 1/2 second, Nitrocellulose 1/4
Seconds, nitrocellulose 1/8 seconds, nitrocellulose 1/16 seconds and the like. One or two or more of these can be arbitrarily selected and used. The amount of nitrocellulose compounded is generally 5 to 25% by weight (hereinafter simply referred to as%) at a isopropyl alcohol wetness of 30% (based on the total weight of the composition).

The resins used in the composition of the present invention are well known and conventionally used. For example, alkyd resin, acrylic resin, polyester resin, sucrose resin, sulfonamide resin, rosin resin, etc. may be mentioned. One kind or two or more kinds are arbitrarily selected and used from these. The amount of the resin compounded is generally 10 to 40% by weight, and 3 to 15% by weight when nitrocellulose is used in combination (based on the total weight of the composition).

The organic solvent used in the composition of the present invention is a conventionally known organic solvent such as ester, alcohol and hydrocarbon solvents. For example, ethyl acetate, butyl acetate, amyl acetate, ethyl alcohol, isopropyl alcohol,
Butyl alcohol, toluene and the like can be mentioned. One kind or two or more kinds are arbitrarily selected and used from these.
The amount of the organic solvent compounded is generally 30 to 85% by weight (based on the total weight of the composition).

In the water-in-oil type nail enamel composition of the present invention, in addition to the above components, a plasticizer (such as a phthalate ester such as dibutyl phthalate or dioctyl phthalate, a citric acid ester such as tributyl citrate, and a Acid acetyl tributyl or acetyl triethyl citrate, or camphor), pigments, dyes, pearls,
An organic modified bentonite gelling agent, a drug, an ultraviolet absorber, etc. are added. Of course, these must be used under qualitative and quantitative conditions that do not impair the object of the present invention.

The composition of the present invention is a conventional nail enamel composition,
Adding water and water compounding compounds separately or together, or
Alternatively, it can be prepared by adding in the form of a mixture of water and a compound for water blending and uniformly stirring and emulsifying.

Furthermore, a method of adding powder such as talc and utilizing its emulsifying action, or preliminarily dissolving water in a water-soluble solvent such as carbitol or diethyl carbitol and adding it to a water-insoluble solvent is also used. W / O
The stability of the emulsion system is improved.

When the present inventor further adds a moisturizer to the water-in-oil type nail varnish composition of the present invention, the safety for nails is further improved, and the generation of double nails can be further suppressed. It was found that a medium water type nail varnish composition can be obtained.

Humectants that can be used in the present invention include, for example, polyols such as glycols (eg ethylene glycol,
Propylene glycol, dipropylene glycol, butylene glycol such as 1,3-butylene glycol, polyethylene glycol) or sugar alcohols (such as glycerin, tetrit, pencit, or hexite such as sorbit), sodium lactate, sodium pyrrolidonecarboxylate or glycerin ethylene oxide adduct Is. These moisturizers can be used alone or in combination.

The amount of moisturizer is 0.1 to 4% by weight, preferably 1 to 3
% By weight (based on the total weight of the composition). If the content is less than 0.1% by weight, the effect of adding a moisturizer is hardly recognized, and if it exceeds 4% by weight, the water resistance of the dry coating film becomes poor, and water such as for cooking, washing, and hair washing is used. It is not preferable because it is easy to peel off in daily activities that are closely related.

The humectant can be added at any suitable step in preparing the composition of the present invention, but it is preferable to add it after dissolving it in water.

The present inventor has further found that when a odor stabilizer is added, a nail enamel composition having improved odor stability and color stability over time can be obtained.

The water-in-oil type nail varnish composition of the present invention contains an organic solvent and water, and particularly in the case of a nitrocellulose composition, an ester solvent such as butyl acetate or ethyl acetate is used as a main solvent. include. If such a composition is left at a high temperature for a long time, the ester may hydrolyze to release a free acid such as acetic acid, which may result in a bad odor of the composition. According to the present invention, such an odor stabilizer can be prevented by blending the odor stabilizer as described above.

The odor stabilizer used in the present invention is a compound having an action of suppressing hydrolysis of an ester solvent at high temperature, and is, for example, a neutral amino acid, a basic amino acid or a salt of an acidic amino acid and a basic amino acid. As the neutral amino acid, for example, glycine, alanine, valine, serine, cysteine, phenylalanine, proline and the like can be used, and as the basic amino acid, lysine, arginine, histidine and the like can be used. Examples of the amino acid salt include arginine-aspartate, arginine-glutamate, lysine-aspartate, lysine-glutamate, histidine-aspartate and histidine-glutamate. Of these, one kind or two or more kinds can be arbitrarily used. The neutral amino acid, the basic amino acid and the acidic amino acid may be mixed in the inner phase portion to form a salt on the spot.

The blending amount of the odor stabilizer is 0.05 to 3% by weight, preferably 0.1 to 1% by weight (based on the weight of the entire composition). If it is less than 0.05%, the effect of improving the odor stability is not sufficient, and if it exceeds 3%, the peeling property (water resistance) is deteriorated, which is not preferable.

The odor stabilizer may be added at any stage of preparing the nail enamel composition, but it is preferably dissolved in water and added.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY The water-in-oil type nail enamel composition of the present invention is excellent in safety for nails, is hard to form two nails even after continuous use, and has stability in separation, ease of application, gloss of coating film, peeling property, and remover. It also has other properties required for a nail enamel composition, such as ease of removal.

In addition, the composition to which the moisturizer is added has further improved safety for nails, and the occurrence of double nails due to continuous use is further suppressed.

Furthermore, the composition added with the odor stabilizer has further improved odor stability and color stability.

〔Example〕

Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. The present invention is not limited to this. The blending amount is% by weight.

Examples 1 to 9 and Comparative Examples 1 to 6 A nail enamel composition comprising the components shown in Table 1 below 15
Seeds were prepared.

After stirring and mixing acetyltributyl citrate, n-butyl acetate and toluene in a weight ratio shown in Table 1,
Nitrocellulose, alkyd resin, sucrose benzoate and camphor were added to this mixture and dissolved by stirring. Subsequently, the pigment and the organically modified bentonite were added and stirred to disperse. Aqueous solution of water-soluble polymer or water, or amino acid salt and / or
An aqueous solution to which dipropylene glycol was added was added to the above dispersion liquid and stirred to emulsify to obtain a red nail enamel composition.

Note 1: Hydroxypropyl methyl cellulose is methyl cellulose propylene glycol ether (Metroze TC-
5; Shin-Etsu Chemical).

Note 2: Sodium hyaluronate has an average molecular weight of approximately 1.2 million (Biohyalo 12; Shiseido).

Note 3: The modified dimethylamino group-containing nylon is a modified nylon (AQ-nylon; Toray) obtained by copolymerizing α- (N-dimethylamino) -ε-caprolactam and ε-caprolactam.

Note 4: Methacrylic acid ester amphoteric polymer is a modified product of alkyl methacrylate / N, N-dimethylaminoethyl methacrylate copolymer with monochloroacetic acid amine salt (Yukaformer AM-75W; Mitsubishi Yuka).

Note 5: Nitrocellulose is isopropyl alcohol wetness
30%, 1/4 second is nitrified cotton RS1 / 4 (Daicel) and
1/8 second is nitrified cotton HIG1 / 8 (Asahi Kasei).

Note 6: Alkyd resin is a solid alkyd resin (Solid Beckosol; Reichhold Japan).

Note 7: Resol Rubin BDA / Titanium Dioxide (4/1) For each of the above compositions, separation (emulsion) stability, irritation at application, ease of application, gloss of coating film, peeling property and nail safety Tested. The test and evaluation were performed as follows.

Separation (emulsion) stability Each sample was filled in two 15 ml glass bottles and left at room temperature for 5 months or at 50 ° C. for 1 month to evaluate the state of each separation. The evaluation is as follows.

◎ ... Both did not separate at all (good) ○ ... Slightly separated one or both (slightly good) △ ... separated either one or both (slightly bad) × ... one or both Very separated (poor) Irritation at the time of application (cool feeling) The sample was filled in a 10 ml glass bottle with a brush, and a panel of 20 people was used to apply it twice to the nails, and after 3 minutes immediately after application, "cool feeling" was applied. Was evaluated. The evaluation was carried out as follows according to the number of panels that had a strong cool sensation and were felt as stimuli. Number of panels felt as evaluation stimulus ◎ (good) 0 to 5 people ○ (somewhat good) 6 to 10 people △ (somewhat bad) 11 to 15 people × (bad) 16 to 20 Easy to apply Samples with 10 ml brush It was filled in a glass bottle and evaluated for ease of application to the nail (one application, two applications). The evaluation was performed as follows.

⊚ (Good): Painted very nicely and smoothly.

○ (Slightly good) ... Smoothly applied.

Δ (Slightly bad) ... Slightly difficult to apply.

× (Poor) ... It was very difficult to apply.

Gloss of coating film The sample is uniformly coated on a glass plate with a doctor blade of 0.35 mm, dried at room temperature for 24 hours, and then the gloss of the coating film is measured using a D-2 type gloss meter (Nippon Denshoku Industries Co., Ltd.). The measurement was made with the value of incident angle 60 ° −reflection angle 60 °. The evaluation was performed as follows according to the measured values. Evaluation measurement value ◎ (good) 100 or more ○ (somewhat good) 90 or more but less than 100 △ (somewhat bad) 70 or more but less than 90 × (poor) less than 70 peeling characteristics Uniform sample on a Tiron plate using a 0.35 mm doctor blade To the cross cut test (1mm x 1mm square pattern) used in the evaluation of adhesion of general paints.
0 pieces) were carried out. The evaluation was performed as follows according to the extent to which a 1 mm × 1 mm square dry coating film remained.

◎ (Good) ... Almost all 1 mm x 1 mm squares remained.

○ (Slightly good)… A few squares were peeled off.

Δ (Slightly bad) ... A relatively large number of squares were peeled off.

X (bad) ... Most of the squares were peeled off.

Safety (two claws) The nails are especially weak, and if you use regular nail enamel continuously, it will be 2
The panel is made up of people who tend to have nails (20 people per sample),
A continuous use test (five months) in which the nails were used once every three days was performed to evaluate the ratio of the panel in which nail abnormalities, particularly, two nails were generated. The evaluation was performed as follows according to the number of panels that produced two nails. Evaluation Number of panels with two claws ☆ (very good) 0 to 3 ◎ (good) 4 to 5 ○ (somewhat good) 6 to 10 △ (somewhat bad) 11 to 15 × (bad) 16 to 20 results The results are shown in Table 2.

As is clear from Table 2, the nail varnish composition of the present invention has excellent safety for nails, does not easily form two nails even when continuously used, and has stability in separation (emulsion) and irritation during application (cooling). It has been confirmed that it has a sufficient function as a nail enamel, since it is excellent in feeling), ease of application, gloss of the coating film, peeling property and the like.

Examples 10 to 14 and Comparative Examples 7 to 9 Nail composition 8 comprising the components shown in Table 3 below.
Seeds were prepared.

After stirring and mixing acetyltriethyl citrate, n-butyl acetate and toluene in the weight ratios shown in Table 3,
Nitrocellulose, acrylic resin, sucrose benzoate and camphor were added to this mixture and dissolved by stirring. Subsequently, the pigment and the organically modified bentonite were added and stirred to disperse. Then, a solution of the oil-soluble polymer (ethyl hydroxyethyl cellulose, dimethyl ditallow ammonium cellulose sulfate or dextrin fatty acid ester) in ethanol and optionally water containing histidine and / or propylene glycol are mixed homogeneously and then Then, the mixture was added to the above-mentioned dispersion, and the mixture was stirred and emulsified to obtain a red nail enamel composition. Tests were carried out on these nail enamel compositions in the same manner as described above. Table 4 shows the results.

Note 8: A mixed cellulose ether in which most of three OH groups in cellulose are substituted with ethoxyl groups or ethylhydroxyl groups, and toluene / 95% ethanol (8:
The viscosity of the 5% solution in 2) is 20-35 cps (25 ° C) (EHEC-LOW; Hercules) Note 9: The molecular weight is about 1 million, 10-20% of sulfate group and 1.5-3
% Contains nitrogen (SOLOID; Kelco) Note 10: Dextrin average polymerization degree 20, average esterification degree 2.5
The fatty acid is C ₁₆ (Leopearl KL; Kenjiro Iwase Shoten) Note 11: Copolymer of butyl acrylate and methyl methacrylate at 70:30 with a molecular weight of about 2000 (Oligen BM-3; Matsumoto Pharmaceutical Co., Ltd.) Note 12 : Deep maroon / Titanium dioxide (4/1) Note 4: Same as Table 1 As is clear from Table 4, the nail enamel composition of the present invention is excellent in safety against nails, is unlikely to form two nails even after continuous use, and has separation (emulsification) stability and irritation during application (cooling). It has been confirmed that it has a sufficient function as a nail enamel, since it is excellent in feeling), ease of application, gloss of the coating film, peeling property and the like.

Examples 15-21 and Comparative Examples 10-12 A nail enamel composition 10 comprising the components shown in Table 5 below.
Seeds were prepared.

After stirring and mixing acetyltributyl citrate, n-butyl acetate and toluene in the weight ratios shown in Table 5,
Nitrocellulose, acrylic resin and camphor were added to this mixture and dissolved by stirring. Subsequently, the pigment and the organically modified bentonite were added and stirred to disperse. Subsequently, after adding a surfactant and optionally glycine and / or glycerin to water and stirring them uniformly, this solution was added to the above-mentioned dispersion liquid and stirred to emulsify the red nail polish composition. Obtained. Tests were carried out on these nail enamel compositions in the same manner as described above. The results are shown in Table 6.

As is clear from Table 6, the nail varnish composition of the present invention has excellent safety for nails, is unlikely to form two nails even after continuous use, and has stability in separation (emulsion) and irritation during application (cooling). It has been confirmed that it has a sufficient function as a nail enamel, since it is excellent in feeling), ease of application, gloss of the coating film, peeling property and the like.

Examples 22 to 26 and Comparative Example 13 A nail enamel composition 6 comprising the components shown in Table 7 below.
Seeds were prepared.

After stirring and mixing acetyltriethyl citrate and n-butyl acetate in the weight ratios shown in Table 7, nitrocellulose, alkyd resin, sucrose benzoate and camphor were added to this mixture and stirred to dissolve. . Subsequently, the pigment and the organically modified bentonite were added and stirred to disperse.

A moisturizer was added to and mixed with the aqueous solution of hydroxypropylmethyl cellulose, and this mixture was added to the above dispersion liquid and stirred to emulsify to obtain a red nail enamel composition. Tests were carried out on these nail enamel compositions in the same manner as described above. Table 8 shows the results.

Examples 27 to 36 and Comparative Examples 14 to 16 Nail composition 13 consisting of the components shown in Table 9 below.
Seeds were prepared.

Acetyltributyl citrate and n-butyl acetate were mixed by stirring at the weight ratio shown in Table 9, and then nitrocellulose, alkyd resin, sucrose benzoate and camphor were added to this mixture and dissolved by stirring. . Subsequently, the pigment and the organically modified bentonite were added and stirred to disperse. Subsequently, an amino acid was added to this dispersion, and the mixture was stirred and emulsified to obtain a red nail composition. Tests were carried out on these nail enamel compositions in the same manner as described above. The results are shown in Table 10.

The tests for odor stability and color stability were carried out as follows.

Odor Stability A 15 ml glass bottle was filled with the sample, left at 50 ° C. (for 2 months) and returned to room temperature, and then the sample was applied to a nail to check for the presence of acetic acid odor. The evaluation was performed as follows.

⊚ (good): There was no acetic acid odor.

◯ (Slightly good): There was a slight odor of acetic acid.

Δ (Slightly bad) ... Acetic acid odor was present.

× (Poor): There was a very strong acetic acid odor.

Color Stability A sample was filled in a 15 ml glass bottle and left at 50 ° C. (2 months) to examine the degree of discoloration. The evaluation was performed as follows.

⊚ (good) ... No discoloration at all.

○ (Slightly good) ... Slightly discolored.

Δ (Slightly bad) ... Discolored.

X (poor): Very discolored.

As is clear from Table 10, the nail varnish composition of the present invention containing an odor stabilizer has excellent odor stability and color tone stability.

In Comparative Examples 14 and 15, although amino acids were mixed, the odor stability was poor because they were acidic amino acids. Further, in Comparative Example 16, the amount of the amino acid salt blended was too large, and therefore the peeling property (water resistance) was poor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Miwa Soyama, 1050, Shinba-cho, Kohoku-ku, Yokohama-shi, Shiseido Research Institute Co., Ltd. References JP-A-59-146607 (JP, A) JP-A-59-134709 (JP, A)

Claims (3)

(57) [Claims] 1. A water-in-oil type nail enamel composition containing a resin and an organic solvent, comprising: (a) water and (b) at least one hydrophilic part and at least one lipophilic part in the molecule. A water-in-oil type nail enamel composition, characterized in that it is blended with a water-compounding compound. 2. A water-in-oil type nail enamel composition containing a resin and an organic solvent, wherein (a) water and (b) at least one hydrophilic moiety and at least one lipophilic moiety in the molecule. A water-in-oil type nail varnish composition comprising a compound for water blending and a (c) moisturizer. 3. A water-in-oil type nail enamel composition containing a resin and an organic solvent, wherein (a) water and (b) at least one hydrophilic moiety and at least one lipophilic moiety in the molecule. A water-in-oil type nail varnish composition comprising a water-imparting compound for compounding and (c) a sting stabilizer.