JP2000053535A - Nail cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a nail cosmetic excellent in glossiness, dryness, applicability and cosmetic durability, and having excellent stability with time. SOLUTION: This nail cosmetic containing nitrocellulose and a sulfonamide epoxy resin is characterized in that an alkyl acrylate-styrene copolymer and/or sucrose benzoate is compounded in it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a nail varnish having excellent ease of application, long lasting makeup, and good stability over time.

[0002]

2. Description of the Related Art Conventionally, nitrocellulose has been used as a film-forming agent in nail polishes, and resins such as alkyd resins and acrylic resins, plastics, etc. have been used to improve the flexibility, adhesion and gloss of the coating film. Agents and the like are used in combination as film forming aids.

[0003]

However, those using these resins have sufficient hardness of the coating so as not to peel off with time, and have a coating corresponding to the deformation of the nail which frequently occurs in daily life. It is difficult to balance the flexibility of the membrane,
Although the drying property was improved, it was not yet a satisfactory nail polish for glossiness and long-lasting makeup. Therefore, it has been desired to further improve the gloss and the long-lasting makeup after applying the beauty nail agent.

[0004]

Means for Solving the Problems The present inventors have conducted various studies in view of the above-mentioned circumstances, and as a result, have found that in a nail enamel containing nitrocellulose and a sulfonamide-based epoxy resin, an alkyl acrylate / styrene copolymer and / or Or, by containing shoe-closed benzoate, it is possible to obtain a beautiful nail preparation that is easy to apply, satisfies the drying property, is excellent in glossiness, persistence of glossiness and difficulty in peeling, and has good stability over time. And completed the present invention. That is, the present invention provides a beautiful nail material containing nitrocellulose and a sulfonamide-based epoxy resin, characterized in that it contains an alkyl acrylate / styrene copolymer and / or shoe-closed benzoate. It is.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below. As the nitrocellulose used in the present invention, any nitrocellulose that is usually used for a beauty nail preparation can be used, for example, nitrified cotton HIG1 / 2, nitrified cotton HIG1 / 4, nitrified cotton HIG1 / 8, etc. And
One or more of these can be used as needed. Nitrocellulose is 5-25% by weight
(Hereinafter simply indicated by “%”).

The sulfonamide-based epoxy resin used in the present invention can be obtained by reacting a sulfonamide compound with a resin composition having a plurality of epoxide groups in the presence of a Lewis acid. Examples of the sulfonamide compound include toluenesulfonamide, naphthalenesulfonamide, methanesulfonamide, benzenedisulfonamide and the like. As a resin composition having a plurality of epoxide groups, diglycidyl ether bisphenol A type having a molecular weight of up to about 20,000,
And diglycidyl ether bisphenol F type. Sulfonamide-based epoxy resins are described in, for example,
It can be produced by the method described in JP-A-506676. Commercially available sulfonamide-based epoxy resins include NAGELLITE 3050 (Telechem
ische). One or two or more sulfonamide-based epoxy resins can be used as necessary. The amount of the sulfonamide-based epoxy resin depends on the type of the sulfonamide-based epoxy resin.
In the case of copolymerized diglycidyl ether bisphenol A type having a molecular weight of up to 20%, the range is preferably 1 to 20%. Within this range, a product excellent in usability, drying properties, and cosmetic durability can be obtained.

The alkyl acrylate used in the present invention
Styrene copolymers are mainly alkyl acrylates (C
= 1 to 4, 8, 12), alkyl methacrylate (C = 1
~ 4,8,12), a copolymer of styrene and a component constituted alone or in combination of two or more of acrylic acid and methacrylic acid. The alkyl chain is linear,
It may be branched. Commercially available products include Acrybase MH-7057 (manufactured by Fujikura Kasei). Alkyl acrylate / styrene copolymer may be added as needed.
Seeds or two or more kinds can be used,
From the viewpoint of drying properties, the content is preferably 0.1 to 25%, more preferably 1 to 15%.

[0008] As the shoe-closed benzoate used in the present invention, any one can be used as long as it is a shoe-closed benzoate usually used in cosmetics. For example, as a commercially available product, Monopet SB (Daiichi Kogyo) Manufactured by Pharmaceutical Co., Ltd.). The blending amount is preferably 1 to 10% from the viewpoints of usability, drying properties, and cosmetic durability.

The nail polish of the present invention further contains an alkyd resin, thereby significantly improving luster and usability. Alkyd resin is a condensate of phthalic anhydride and glycerin,
Or this is castor oil fatty acid, coconut oil fatty acid, benzoic acid,
Any one modified with an organic acid such as succinic acid can be used, and one or more of these can be used as necessary. The blending amount is preferably 2 to 15% from the viewpoint of usability.

[0010] The nail enamel of the present invention comprises, in addition to the above essential components,
Components used in ordinary nail polishes can be added to such an extent that the effects of the present invention are not impaired. As the powder for imparting a cosmetic effect, extender pigments, white pigments, colored pigments, organic powders, pearlescent agents, lame agents, organic pigments, etc. can be used without particular limitation, such as spherical, plate-like, and needle-like shapes. It is possible. Specifically, talc, kaolin, mica, synthetic mica, sericite, magnesium carbonate, calcium carbonate,
Aluminum silicate, magnesium silicate, aluminum magnesium silicate, silicic anhydride, silicon carbide, barium sulfate, bentonite, hectorite, smectite,
Organically modified bentonite, organically modified hectorite, titanium oxide, zinc oxide, magnesium oxide, aluminum oxide, red iron oxide, yellow iron oxide, black iron oxide, titanium monoxide, boron nitride, chromium oxide, konjo, ultramarine, iron oxide mica, Iron oxide mica titanium, mica titanium, bismuth oxychloride, nylon powder, polyethylene powder, polystyrene powder, silicone powder, methyl methacrylate powder, polytetrafluoroethylene powder, wool powder,
Urethane powder, silk powder, crystalline cellulose,
Tar-based dyes and lake dyes thereof, and composites of these powders can be used. Further, a material which has been subjected to a surface treatment using one or two or more of a fluorine compound, a silicone oil agent, a metal soap, a wax, an oil, a hydrocarbon, and the like can also be used. Examples of the resin or the film forming agent include a toluenesulfonamide formaldehyde resin, an alkyl methacrylate methacrylate copolymer, and the like. Examples of cosmetic ingredients include proteins, mucopolysaccharides, collagen, elastin, keratin, vitamins, crude drugs, and the like.
In addition, plasticizers, film forming aids, true solvents, co-solvents, diluents,
Gelling agents, viscosity modifiers, oils, surfactants, anti-settling agents, ultraviolet absorbers, anti-fading agents, antioxidants, defoamers,
Water-soluble components, fragrances and the like can be mentioned.

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

[0012]

The present invention will be described in detail below with reference to examples. These do not limit the present invention at all.

Examples 1 to 9 and Comparative Examples 1 to 3 Nail preparations A nail preparation having the composition shown in Table 1 was prepared, and was easily applied, dried, had a cosmetic effect (gloss), and had a long-lasting makeup (peeling over time). No), and the stability over time was evaluated by the following method. Table 1 also shows the results.

[0014]

[Table 1]

(Preparation method) Each of the components was stirred and dispersed to fill a glass bottle with a brush to obtain a product.

(Evaluation Items and Evaluation Methods) a. Ease of coating Each sample was evaluated by a use test in a double coating by a sensory test panel of 10 persons. Very fine and smooth paint: 4 points Fine paint: 3 points Hard to apply: 2 points Very difficult to apply: 1 point b. Drying property When using 10 sensory test panels for each sample,
The evaluation was made based on the time from immediately after the application of each sample to when the fingertip touched the fingertip. Less than 3 minutes: 4 points 3 minutes or more to less than 4 minutes: 3 points 4 minutes or more to less than 5 minutes: 2 points 5 minutes or more: 1 point c. Cosmetic effect (gloss) When using 10 sensory test panels for each sample,
The appearance of each sample was evaluated. Very glossy: 4 points Glossy: 3 points Not very glossy: 2 points Not glossy: 1 point d. Long-lasting makeup (no peeling over time) The appearance of each sample was evaluated by sensory evaluation after use for 3 days by a sensory test panel of 10 persons for each sample. Extremely difficult to peel: 4 points No peeling is seen, but shaving is seen at the tip: 3 points Peeling is seen and the tip is almost shaved: 2 points Large peeling is seen on a wide surface: 1 point e. Stability over time Ten samples of each sample were left in a thermostat at 50 ° C. for 30 days, and the presence or absence of discoloration and separation was visually checked. No discoloration / separation: 4 points Slight separation: 3 points Slight discoloration / separation: 2 points Significant discoloration / separation: 1 point

For each evaluation method, the scores obtained from the above-mentioned absolute evaluations were totaled, and the average score was further evaluated in four steps. 3.5 points or more: ◎ 3 points or more and less than 3.5 points: ○ 2 points or more and less than 3 points: △ Less than 2 points: ×

As is clear from the results in Table 1, the nail polish of Examples 1 to 9, which are the products of the present invention, are easier to apply and dry than the nail polish of Comparative Examples 1 to 3. It can be seen that it has excellent cosmetic effects, long-lasting makeup, and excellent stability over time as a product.

Example 10 Transparent Base Coat (Formulation) (%) (1) Nitrocellulose 8 (2) Alkyl acrylate / styrene copolymer 15 (3) Pseudorose benzoate 7 (4) Toluenesulfonamide epoxy resin 10 (5) ) Acetyltributyl citrate 5 (6) Ethyl acetate 20 (7) Butyl acetate 30 (8) Isopropyl alcohol 5 (Production method) The above components (1) to (8) are mixed and dissolved. The transparent base coat obtained as described above was excellent in ease of application to nails, ease of application, drying properties, and long lasting makeup.

Example 11 Transparent Top Coat (Formulation) (%) (1) Nitrocellulose 10 (2) Alkyl acrylate / styrene copolymer 10 (3) Shoe Rose Benzoate 5 (4) Toluenesulfonamide epoxy resin 10 ( 5) Alkyd resin 5 (6) Ethyl acetate 20 (7) Butyl acetate 35 (8) Isopropyl alcohol 5 (Production method) The above components (1) to (8) are mixed and dissolved. The transparent top coat obtained as described above was excellent in gloss, dryness, and long-lasting makeup.

[0021]

The nail polish of the present invention has an unprecedentedly high gloss, has good drying properties, and is excellent in ease of application. It has the characteristic that beautiful luster is very long-lasting because it is excellent. In addition, it has good stability over time and has extremely good quality.

Continued on the front page F term (reference) 4C083 AB242 AB442 AC102 AC352 AC372 AC792 AD021 AD022 AD091 AD092 AD111 AD112 AD221 AD222 AD261 AD262 CC28 DD23 EE06

Claims (2)

[Claims] 1. A nail enamel containing nitrocellulose and a sulfonamide-based epoxy resin, comprising an alkyl acrylate / styrene copolymer and / or shoe-closed benzoate. 2. The nail polish according to claim 1, further comprising an alkyd resin.