JP3525593B2 - Aqueous nail polish - Google Patents

Description

BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention relates to water Keibi Tsumeryo compounded with a resin and an acrylic polymer emulsion that dissolves and the alkaline water is insoluble in water. 2. Description of the Related Art Conventionally, beauty nail preparations have been widely used as makeup cosmetics for toes, and their dosage forms are toluene,
Solvent-type solvents, mainly acetic esters, were the mainstream. However, with an increase in safety orientation in recent years, nail polish that does not use an organic solvent, for example, a water-based nail polish (hereinafter referred to as “aqueous nail polish”) has been studied. In the case of water-based nail pills, unlike conventional nail pills, components that form a strong film such as nitrified cotton cannot be used. The development of products that have it has become the main subject. Conventionally, acrylic polymer emulsions that have been used as film-forming agents for water-based nail polishes alone cannot satisfy coating properties such as coating strength, adhesion, and gloss that can withstand use as nail polishes. Use two or more polymers with different glass transition temperatures (Tg), particle sizes, or structures in combination to improve the coating performance, or improve the coating performance by using a multilayered polymer emulsion itself Attempts have been made to do so. [0003] However, the conventional method of combining polymer emulsions causes problems such as whitening of the coating film and reduction in the strength of the coating film due to poor compatibility between the polymer emulsions. The types of polymer emulsions that can be combined are greatly limited. Further, when polymer emulsions having different particle diameters are combined, the nail polish itself becomes cloudy, which is not preferable in appearance. As described above, the conventional methods have various problems, and it has been difficult to obtain a target quality by combining a polymer emulsion. On the other hand, when a polymer emulsion having a multilayer structure is used, it is possible to effectively improve the properties of the coating film. However, as far as the present inventors have carried out additional tests, the coating film performance is equivalent to that of the organic solvent type nail polish. Has not yet been obtained. Therefore, the performance of the coating film is determined by the function of the film forming agent used, and it has been difficult to give the coating film additional functions such as gloss, adhesion, and strength. For this reason, there has been a demand for the development of a compounding technique capable of adjusting the coating film performance such as gloss, adhesion and strength. [0004] In view of the above-mentioned circumstances, the present inventors have made intensive studies and found that, when a resin insoluble in water and soluble in alkaline water and an acrylic polymer emulsion are blended, an acrylic polymer emulsion is obtained. The inventors have found that the compatibility between the two is good and that the coating properties of the water-based nail polishes can be freely adjusted, and the present invention has been completed. [0005] That is, the present invention relates to a water-insoluble and 0.1 g
0.1% by weight or more soluble in fixed alkaline water
0.05 to 20% by weight of acrylic resin containing sil group
2-60% by weight of a ril-based polymer emulsion (solid content
And a water-based nail enamel containing the above carboxy.
Acrylic resin containing hydroxyl group is neutralized with alkaline water and dissolved in
It is a water-based beautiful nail material characterized by being disassembled and blended. [0006] The configuration of the present invention will be described below. As used in the present invention, and 0.1N insoluble in water
That can dissolve at least 0.1% by weight in an alkaline aqueous solution of
The xyl group-containing acrylic resin is acrylic acid and / or
Methacrylic acid polymer or acrylic acid and / or methacrylic acid
It is a copolymer of lylic acid and other monomers. Other monomers include methyl acrylate, ethyl acrylate, acrylamide, n-propyl acrylate, and n-acrylate.
Butyl, isobutyl acrylate, octyl acrylate,
2-ethylhexyl acrylate, N, N-dimethylaminoethyl acrylate, acrylonitrile, ethyl methacrylate, methacrylamide, n-propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate,
Examples thereof include 2-ethylhexyl methacrylate, octyl methacrylate, hydroxyethyl methacrylate, and N, N-dimethylaminoethyl methacrylate. The polymerization method can be carried out by a known method, and in that case, styrene, vinyl acetate or the like may be copolymerized. As a commercially available product, John Krill 68 (manufactured by Johnson Polymer Co., Ltd.)
And F-75 (manufactured by Seiko Chemical Co., Ltd.), Dermacril-79 (manufactured by Kanebo NS Co., Ltd.), and the like. Ca that dissolves and the alkaline water is insoluble in these water
As the ruboxyl group-containing acrylic resin, if necessary, one or more kinds can be used. These carboxyl group- insoluble and water-soluble carboxyl groups of the present invention
The amount of the acrylic resin is from 0.05 to 20 percent in terms of expression and use of effects, more preferably from 0.1% to 15%. [0007] The acrylic polymer emulsion used in the present invention is a copolymer of a monomer selected from one or more of acrylic acid, methacrylic acid or their alkyl esters or derivatives. These monomers include acrylic acid, methyl acrylate, ethyl acrylate, acrylamide, n-propyl acrylate, n-butyl acrylate, isobutyl acrylate, octyl acrylate, 2-ethylhexyl acrylate, N,
N-dimethylaminoethyl acrylate, acrylonitrile, methacrylic acid, ethyl methacrylate, methacrylamide, n-propyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, 2-ethylhexyl methacrylate, octyl methacrylate, hydroxyethyl methacrylate , N, N-dimethylaminoethyl methacrylate and the like. When these monomers are copolymerized, styrene, vinyl acetate and the like may be copolymerized. The structure of the obtained polymer may be a single layer or a multilayer. In addition, the production method is carried out by polymerizing one or more of the above monomers in accordance with a conventional method, and adding water to the reaction mixture as needed.
Preferably, emulsifier-free polymerization in which polymerization is carried out by a known method such as soap-free polymerization using a reactive emulsifier, heterogeneous polymerization in an aqueous medium containing no emulsifier, and the like. Commercially available products include J775 and J537 (both manufactured by Johnson Polymer Co., Ltd.), Iodozol GH28 and GH41
(All manufactured by Kanebo NS Co., Ltd.), Boncoat 9422 and 40-418 (all manufactured by Dainippon Ink and Chemicals, Inc.), Primal C-72, and GL-6
18 (all manufactured by Rohm and Haas Japan KK), Polysol AM-200, AP-26
79, AP-2683 (both are Showa High Polymer Co., Ltd.)
Manufactured). One or more of these acrylic polymer emulsions can be used as needed. [0008] The amount of the acrylic polymer emulsion, in terms of peel film forming ability and usability, 2 on a solid basis
It is 60%, more preferably 5 to 40%. [0009] As the base used to and neutralizing the carboxyl group-containing acrylic resin which is soluble in alkaline water insoluble to the water of the present invention, as long as it is usually used in cosmetics, particularly limited Although not limited thereto, for example, trimethylamine, N, N′-tetra (ω-hydroxypropyloxyethoxy) ethylenediamine, a tertiary ammonia salt of triethylamine, ammonia, triethanolamine, sodium hydroxide and the like can be mentioned. Among them, the use of a volatile base such as ammonia is preferable because of good water resistance. Although there is no particular limitation on the degree of neutralization, it is desirable to neutralize so that the final pH is near neutrality. water
Resins that are insoluble in water and soluble in alkaline water
Neutralize with and dissolve in this
Mix with Rejon. [0010] In addition to the above essential components, pigments, pigments or other cosmetic powders can be incorporated into the aqueous nail polishes of the present invention. These powders may be used as they are, but of course, if necessary, may be treated with an oil agent, a surfactant, silicone, a fluorine compound, or the like and blended. Also, if necessary, a surfactant for pigment dispersion,
A film forming aid, a viscosity modifier (gelling agent), a water-soluble polymer, a preservative, an antifoaming agent, a plasticizer, an antioxidant, a fragrance, an ultraviolet absorber, a cosmetic ingredient, and the like can be appropriately compounded. The nail polish of the present invention includes nail enamel, enamel top coat, enamel base coat and the like. EXAMPLES Hereinafter, the effects of the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Examples 1 to 4 and Comparative Examples 1 to 2 Aqueous nail polish A water-based nail polish having the formulation shown in Table 1 was prepared, and had good spreadability, long-lasting makeup (difficulty in peeling and hard to apply), gloss and gloss. The compatibility of the resin and the polymer emulsion in the system was evaluated by the following methods. Table 1 also shows the results.
Shown in [Table 1] * 1: Shonsoncryl Co., Ltd. manufactured by Shonson Polymer Co., Ltd. 68: Styrene-acrylic acid copolymer * 2: F-75: Shikotsu Chemical Co., Ltd .: Acrylic acid-methyl methacrylate copolymer * 3: Kanehou NS Corporation YOTO SOUL GH
28: Ethyl acrylate-methyl methacrylate copolymer
(Solid content: 45%) * 4: Yodosol GH manufactured by Kanebo NSC Co., Ltd.
41: Styrene- alkyl acrylate copolymer (solid content 45
(Production method) Examples 1-4 and Comparative Examples 1-2 A. The components (1), (2) and (12) are dissolved in the component (5). B. Component (8) Disperse evenly. C. B and components (3), (4), (6), (7),
(9) to (11) are mixed, degassed, and filled in a container to obtain a product. (Evaluation Method and Judgment Criteria) For each sensory evaluation sample, a use test was conducted by 20 specialized panels, and each sample was evaluated for good spreadability, long-lasting makeup (hard to peel,
(1) Five-step evaluation using absolute evaluation criteria, and (2) four-step evaluation criteria for average value of each sample. (1) Absolute evaluation criterion 5 points: Very good 4 points: Good 3 points: Normal 2 points: Slightly poor 1 point: Poor (2) Four-step evaluation criteria ：: 4.0 to 5.0 points ：: 3. 0 to less than 4.0 points: 2.0 to less than 3.0 points x: 1.0 to less than 2.0 points Compatibility evaluation For each sample, put 4 pieces on a glass plate with a doctor blade.
After preparing a uniform coating film having a mill thickness and allowing it to stand at room temperature for 24 hours to air-dry sufficiently, the transparency of the coating film was visually evaluated. Criteria ：: transparent ○: slightly cloudy Δ: cloudy ×: cloudy and no uniformity of the coating film As is apparent from the above results, the aqueous nail polishes of Examples 1-4 according to the present invention. It can be seen that it has much better properties in all respects such as good spreadability, long-lasting makeup (hard to peel and hard to spread), gloss and compatibility. On the other hand, the water-based nail polish of Comparative Example was not particularly satisfactory in terms of long-lasting makeup. Example 5 Aqueous Topcoat (Component) (%) Resin A * 1 0.1 2. 2. Acrylic polymer emulsion C * 3 90.0 Purified water balance 4. Neutralizer appropriate amount5. Carbitol 2.5 6. Plasticizer appropriate amount 7. Preservative qs 8. Defoamer appropriate amount 9. Appropriate amount of fragrance (production method) A. Component (1) is dissolved in components (3) and (4). B. A and components (2) and (5) to (9) are stirred and mixed until uniform, degassed, and filled into a container to obtain a product. The water-based topcoat of the present invention was excellent in usability, and in particular, was excellent in transparency (good compatibility), which is a function as a topcoat, and in film strength and adhesion for long-lasting makeup. The water-based nail polish of the present invention has excellent usability such as good spreadability, good compatibility of resin and polymer emulsion in the system, and coating properties such as gloss, adhesion and strength. Was an excellent one that could be adjusted as needed.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-103513 (JP, A) JP-A-3-133916 (JP, A) JP-A-5-32821 (JP, A) (58) Field (Int. Cl. ⁷ , DB name) A61K ^7/ 00-7/50 CA (STN)

Claims (1)

(57) [Claims] [Claim 1] Insoluble in water and in 0.1N alkaline water
0.1% by weight or more soluble carboxyl group-containing acrylic
0.05-20% by weight of acrylic resin and acrylic polymer
2 to 60% by weight (in terms of solid content)
A water-based beauty nail material, wherein the carboxyl group-containing acrylic
A water based nail polish characterized by that the resin is neutralized with alkaline water, dissolved in the water and blended .