JP7080502B2 - Nail remover - Google Patents

Description

The present invention relates to a nail-coating remover for removing nail polish such as nail enamel and gel nail, and more particularly to a gel-like nail polish remover.

The form of the nail polish remover (hereinafter, also referred to as "remover") used to remove the nail polish applied to the surface of the nails of the hands and toenails or the surface of artificial nails is liquid. Is common. If the remover is in liquid form, the remover should be soaked in cotton wool and placed on the nails, and the fingers should be wrapped in aluminum foil to prevent the organic solvent such as acetone from volatilizing immediately. Therefore, there is a problem that not only the nails but also the skin is degreased and causes rough skin.

On the other hand, a gel-like remover containing a thickener is also known. When the remover is in the form of a gel, it does not drip when applied to the nails and can be applied pinpointly only to the nails, so that there is an advantage that it is easier to handle than a liquid remover.

For example, Patent Document 1 describes a remover gel for softgel nails and a method for producing the same, which can exhibit the same level of removal effect as a conventional softgel nail removing method performed in a nail salon or the like by simply applying it directly to a nail. Disclosed is a remover gel for soft gel nails, which contains hydroxyalkyl cellulose, acetone-affinitive smectite and an organic solvent, and the organic solvent contains acetone.

Patent Document 2 contains 0.1 to 50% by weight of silica and has a residue, for the purpose of providing a gel-like nail enamel remover in which the formed gel is stable and has excellent appearance and usability. A gel nail enamel remover comprising a solvent containing a wetting agent and having a weight ratio of the wetting agent to the solvent of 4 or less is disclosed.

Patent Document 3 describes an organically modified smectite-type clay mineral treated with a specific quaternary ammonium ion with respect to a nail polish remover having a transparent appearance and excellent properties of safety, storage stability, and usability. A nail polish remover containing a clay mineral and a propylene carbonate is disclosed.

In Patent Document 4, propylene carbonate, which has low flammability and does not degrease nails and skin, is used as the main solvent, and there is no adverse effect such as stickiness or residual polymer, and gel-like enamel having sufficient gel strength. A lower grade selected from the group consisting of the following components (a) to (d): (a) 20 to 95% by weight of propylene carbonate, (b) ethanol, isopropyl alcohol and n-propyl alcohol for the purpose of providing a remover. Disclosed are gel enamel removers containing 2 to 75% by weight of alcohol, 0.1 to 5% by weight of carboxyvinyl polymer, and (d) 0.1 to 5% by weight of ethylenediaminetetrapolyoxyethylenepolyoxypropylene. There is.

Japanese Patent No. 5484624 Japanese Unexamined Patent Publication No. 2000-95646 Japanese Unexamined Patent Publication No. 10-182359 Japanese Patent No. 2926363

The gel-like removers described in Patent Documents 1 to 4 are thickened by a thickener. However, as with the liquid remover, an organic solvent such as acetone volatilizes immediately after application, so it is still necessary to wrap the finger in aluminum foil. Therefore, there is a problem that the person to be treated cannot use his / her finger during the work of removing the beautiful nail agent and cannot perform other work.

Therefore, the problem to be solved by the present invention is that the beautiful nail agent has excellent removing performance, and the person to be treated can move his / her finger to perform other work during the beautiful nail agent removing operation. To provide a remover.

As a result of diligent studies, the present inventors have found that a nail remover containing a specific thermoplastic resin such as polyvinyl butyral resin or polyvinylpyralidone resin and a specific organic solvent having a boiling point of 40 to 130 ° C. is described above. We have found that the problem can be solved and have completed the present invention.

That is, the present invention relates to the following.
<1> At least one thermoplastic resin (A) selected from the group consisting of polyvinyl butyral, polyvinylpyrrolidone, alkyl cellulose and partially saponified polyvinyl alcohol having a saponification degree of 1 to 50 mol%, and a boiling point of 40 to 130 ° C. A certain organic solvent (B)
It is a beauty nail remover containing
The organic solvent (B) is at least one selected from the group consisting of carbonic acid esters, acetic acid esters, ketones, glides and cyclic ethers.
A nail remover having a content of the thermoplastic resin (A) of 1 to 70% by mass.
<2> The organic solvent (B) contains carbonic acid esters having 3 to 5 carbon atoms, acetate esters having 3 to 6 carbon atoms, ketones having 3 to 6 carbon atoms, glimes having 4 to 7 carbon atoms, and carbon. The beauty nail remover according to <1> above, which is at least one selected from the group consisting of cyclic ethers of number 4 to 6.
<3> The organic solvent (B) is dimethyl carbonate, ethylmethyl carbonate, diethyl carbonate, methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, n-butyl acetate, isobutyl acetate, sec-butyl acetate, t acetate. -At least one selected from the group consisting of butyl, acetone, methyl ethyl ketone, diethyl ketone, methyl propyl ketone, methyl isobutyl ketone, 1,2-dimethoxyethane, tetrahydrofuran and 1,4-dioxane, <1> or <2> The beautiful nail remover according to.
<4> The organic solvent (B) is at least one selected from the group consisting of dimethyl carbonate, ethyl methyl carbonate, ethyl acetate, acetone and methyl ethyl ketone, to any one of the above <1> to <3>. The described beauty nail remover.
<5> The nail polish removing agent according to any one of <1> to <4> above, wherein the organic solvent (B) is dimethyl carbonate.
<6> The nail polish removing agent according to any one of <1> to <5> above, wherein the thermoplastic resin (A) is at least one selected from the group consisting of polyvinyl butyral and polyvinylpyrrolidone.

Since the nail polish remover of the present invention has excellent film-forming properties, the person to be treated can move his / her finger to perform other tasks during the nail polish removal operation, and the amount of the organic solvent to be blended can be increased. Even if it is reduced, the beautiful nail agent can be removed efficiently, and the removal performance of the beautiful nail agent is excellent.

Hereinafter, embodiments for carrying out the present invention (hereinafter, simply referred to as “the present embodiment”) will be described in detail. The following embodiments are examples for explaining the present invention, and are not intended to limit the present invention to the following contents. The present invention can be appropriately modified and carried out within the scope of the gist thereof. In the present specification, the description of "XX to YY" means "XX or more and YY or less".

As used herein, the term "nail remover" is a remover capable of removing both non-photo-curing nail cosmetics such as nail enamel and photo-curing nail cosmetics such as soft gel nails. Means. However, in gel nails, the main purpose is to remove the base coat.

The nail remover of the present invention is at least one thermoplastic resin (A) selected from the group consisting of polyvinyl butyral, polyvinylpyrrolidone, alkyl cellulose and partially saponified polyvinyl alcohol having a saponification degree of 1 to 50 mol%, and A nail remover containing an organic solvent (B) having a boiling point of 40 to 130 ° C., wherein the organic solvent (B) is a carbonate ester, an acetate ester, a ketone, a glime, or a cyclic ether. It is at least one selected from the group consisting of, and the content of the thermoplastic resin (A) is 1 to 70% by mass.

The reason why the effect of the present invention is obtained is not clear, but it is presumed as follows.
The thermoplastic resin (A) contained in the remover of the present invention is dispersed in the organic solvent (B) to form a stable three-dimensional network structure by interaction such as hydrogen bonding, resulting in thickening. A phenomenon occurs. Here, the organic solvent (B) on the air-side surface of the remover volatilizes, and the network structure made of the thermoplastic resin (A) forms a film. By forming the film, it is possible to prevent the remover from dripping even if the person to be treated moves his / her finger during the work of removing the beautiful nail agent. Further, when the film is formed, the volatilization of the organic solvent (B) from the air-side surface of the remover is suppressed, and the organic solvent (B) permeates the nail-beautifying agent from the nail-side surface of the remover, thereby improving efficiency. It is possible to remove the beautiful nail agent.
In bentonite and silica, which have been conventionally used as thickeners, although they thicken, they do not form a film, so that the organic solvent (B) volatilizes immediately. Further, since polyethylene glycol has a structure without branching, the interaction between polyethylene glycols in an organic solvent is weak, and a sufficient network structure cannot be formed and a film cannot be formed.

<Thermoplastic resin (A)>
The thermoplastic resin (A) contained in the remover of the present invention is at least one thermoplastic resin selected from the group consisting of polyvinyl butyral, polyvinylpyrrolidone, alkyl cellulose and partially saponified polyvinyl alcohol having a saponification degree of 1 to 50 mol%. Is. When the remover of the present invention contains the thermoplastic resin (A), the thermoplastic resin (A) forms a film, suppresses volatilization of the organic solvent (B) from the air-side surface of the remover, and claws of the remover. The organic solvent (B) permeates the nail polish from the side surface, so that the nail polish can be efficiently removed. Further, since the film is formed, it is possible to prevent the remover from dripping even if the finger is moved during the work of removing the beautiful nail agent, which is excellent in usability.

The thermoplastic resin (A) is not particularly limited as long as it is at least one thermoplastic resin selected from the group consisting of polyvinyl butyral, polyvinylpyrrolidone, alkylcellulose and partially saponified polyvinyl alcohol having a saponification degree of 1 to 50 mol%. From the viewpoint of stability, ease of use, compatibility with the organic solvent (B), and the like, at least one selected from the group consisting of polyvinyl butyral and polyvinylpyrrolidone is preferable.

Commercially available products can be used as polyvinyl butyral. For example, "ESREC B" manufactured by Sekisui Chemical Co., Ltd. can be mentioned, and specifically, "BL-S", "BM-1", "BH-3" and the like can be mentioned. "Eslek B" is a polyvinyl acetal obtained by reacting polyvinyl alcohol with an aldehyde, and has a repeating unit having a hydroxyl group and a repeating unit having an acetyl group, in addition to the repeating unit having a butyral group. The polyvinyl butyral that can be used in the present invention may have a repeating unit having a hydroxyl group and a repeating unit having an acetyl group, in addition to the repeating unit having a butyral group.

The number average molecular weight of polyvinyl butyral is preferably 15,000 to 130,000, more preferably 19,000 to 110,000 from the viewpoint of forming a film.

Commercially available products can be used as polyvinylpyrrolidone. For example, "Pitzcol (registered trademark)" manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd. can be mentioned, specifically, "K-90" (K value: 92 to 96, weight average molecular weight: 1,200,000), ""K-50" (K value: 48 to 52, weight average molecular weight: 250,000), "K-30" (K value: 27 to 33, weight average molecular weight: 45,000) and the like can be mentioned. In addition, in the products manufactured by Ashland, "K-120 (K value: 114-130, weight average molecular weight: 2,100,000 to 3,000,000)", "K-90" (K value: 85 to 90, Weight average molecular weight: 1,000,000 to 1,700,000), "K-60" (K value: 50 to 62, weight average molecular weight: 390,000 to 470,000), "K-30" (K) Values: 36 to 35, weight average molecular weight: 40,000 to 80,000) and the like. Further, "K90" (K value: 84 to 95) manufactured by Tokyo Chemical Industry Co., Ltd. can be mentioned.
The K value is a viscosity characteristic value that correlates with the molecular weight, and is a value calculated by applying the relative viscosity value (25 ° C.) measured by a capillary viscometer to Fikentscher's formula.

The weight average molecular weight of polyvinylpyrrolidone is preferably 40 to 120, more preferably 50 to 110, as a K value (viscosity characteristic value that correlates with the molecular weight) from the viewpoint of forming a film. Specifically, K-50, K-60, K-90 and the like are preferable from the viewpoint of achieving both film-forming property and peelability.

The alkyl cellulose in the present invention is a compound in which the hydroxy group of cellulose is etherified with an alkyl group. Compounds in which the hydroxy group of cellulose is etherified with a hydroxyalkyl group or a carboxyalkyl group are not included in the alkyl cellulose in the present invention. Therefore, hydroxyalkyl cellulose and carboxyalkyl cellulose are not included in the alkyl cellulose in the present invention.

It should be noted that hydroxyalkyl cellulose and carboxyalkyl cellulose have low solubility selectivity in organic solvents. In addition, the effect of the network structure is large, and it loses fluidity and becomes jelly-like. Although the network structure is formed, the organic solvent trapped in the network structure is less likely to volatilize due to the complicated network structure, and the efficiency of removing the nail polish is low.

The number of carbon atoms of the alkyl group in alkyl cellulose is preferably 1 to 8, more preferably 1 to 4, and even more preferably 1 to 3 from the viewpoint of forming a film. Examples of the alkyl cellulose include methyl cellulose, ethyl cellulose, ethyl methyl cellulose and the like, and among them, ethyl cellulose is preferable. Examples of the ethyl cellulose include "Ethocel (registered trademark)" manufactured by Dow Chemical Co., Ltd., and specifically, "STD-200" (weight average molecular weight: 187,800, number average molecular weight: 80,733) and the like. Be done.

The degree of saponification of the partially saponified polyvinyl alcohol is 1 to 50 mol%, preferably 5 to 40 mol%, and more preferably 10 to 35 mol% from the viewpoint of forming a film.
The degree of polymerization of the partially saponified polyvinyl alcohol is preferably 100 to 2,000, more preferably 150 to 1,800 from the viewpoint of forming a film.
Commercially available products can be used as the partially saponified polyvinyl alcohol. For example, "JMR" manufactured by Japan Vam & Poval Co., Ltd. can be mentioned, and specifically, "JMR-150L" (saponification degree: 23 mol%) and the like can be mentioned.

The content of the thermoplastic resin (A) in the remover of the present invention is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, and organic from the viewpoint of forming a film. From the viewpoint of solubility in the solvent (B), it is 70% by mass or less, preferably 60% by mass or less, and more preferably 55% by mass or less.

<Organic solvent (B)>
The organic solvent (B) contained in the remover of the present invention is an organic solvent having a boiling point of 40 to 130 ° C. The organic solvent (B) is at least one selected from the group consisting of carbonic acid esters, acetic acid esters, ketones, glides and cyclic ethers.
The boiling point of the organic solvent (B) is 40 ° C. or higher, preferably 45 ° C. or higher, more preferably 50 ° C. or higher, and 130 ° C. or higher from the viewpoint of film-forming property. ° C. or lower, preferably 120 ° C. or lower, more preferably 110 ° C. or lower.

The carbonic acid esters are preferably carbonic acid esters having 3 to 5 carbon atoms, and more preferably dimethyl carbonate (boiling point: 90 ° C.), ethyl methyl carbonate (boiling point: 107 ° C.), and diethyl carbonate (boiling point: 126 ° C.). be.
The acetic acid esters are preferably acetic acid esters having 3 to 6 carbon atoms, and more preferably methyl acetate (boiling point: 56.9 ° C.), ethyl acetate (boiling point: 77.1 ° C.), and n-propyl acetate (boiling point). : 102 ° C), isopropyl acetate (boiling point: 89.5 ° C), n-butyl acetate (boiling point: 126 ° C), isobutyl acetate (boiling point: 118 ° C), sec-butyl acetate (boiling point: 112 ° C), t-acetate It is butyl (boiling point: 97 ° C.).
The ketones are preferably ketones having 3 to 6 carbon atoms, and more preferably acetone (boiling point: 56 ° C.), methyl ethyl ketone (boiling point: 79.6 ° C.), diethyl ketone (boiling point: 102 ° C.), and methyl propyl ketone. (Boiling point: 102.26 ° C.), Methyl isobutyl ketone (boiling point: 118 ° C.).
The grime is preferably a grime having 4 to 7 carbon atoms, and more preferably 1,2-dimethoxyethane (boiling point: 85 ° C.).
The cyclic ethers are preferably cyclic ethers having 4 to 6 carbon atoms, and more preferably tetrahydrofuran (boiling point: 66 ° C.) and 1,4-dioxane (boiling point: 101 ° C.).

The organic solvent (B) is preferably dimethyl carbonate, ethylmethyl carbonate, diethyl carbonate, methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, n-butyl acetate, isobutyl acetate, sec-butyl acetate, t-butyl acetate. At least one selected from the group consisting of butyl, acetone, methyl ethyl ketone, diethyl ketone, methyl propyl ketone, methyl isobutyl ketone, 1,2-dimethoxyethane, tetrahydrofuran and 1,4-dioxane, more preferably dimethyl carbonate and ethyl. It is at least one selected from the group consisting of methyl carbonate, ethyl acetate, acetone and methyl ethyl ketone, and more preferably dimethyl carbonate.

The content of the organic solvent (B) in the remover of the present invention is preferably 10% by mass or more, more preferably 20% by mass or more, still more preferably 30% by mass or more, from the viewpoint of the removal performance of the nail polish. The content is preferably 95% by mass or less, more preferably 90% by mass or less.

The total content of the thermoplastic resin (A) and the organic solvent (B) in the remover of the present invention is preferably 60% by mass or more, more preferably 70% by mass or more, still more preferably 80% by mass or more.

<Other ingredients>
The remover of the present invention may contain components (other components) other than the thermoplastic resin (A) and the organic solvent (B) as long as the effects of the present invention are not impaired.

The remover of the present invention may contain a lower monohydric alcohol as an auxiliary solvent for dissolving the thermoplastic resin (A) and the organic solvent (B).
As the lower monohydric alcohol, a monohydric alcohol having 1 to 4 carbon atoms is preferable. Specific examples of the lower monohydric alcohol include methanol, ethanol, n-propanol, i-propanol, n-butanol, i-butanol, n-pentanol, i-pentanol, n-hexanol, i-hexanol, 2-. Ethylhexanol and the like can be mentioned. Among these, methanol or ethanol is preferable, and ethanol is more preferable.
The content of the lower monohydric alcohol in the remover of the present invention is preferably 40% by mass or less, more preferably 30% by mass or less, and further, from the viewpoint of dissolving the thermoplastic resin (A) and the organic solvent (B). It is preferably 20% by mass or less. The lower limit is not particularly limited, but is preferably 3% by mass or more, more preferably 5% by mass or more, and further preferably 8% by mass or more.

The remover of the present invention may contain a nail protectant to protect and maintain the soundness of the nail.
Hydrocarbon oils such as vaseline and squalane; vegetable oils such as jojoba oil and olive oil; fatty acids such as stearic acid and oleic acid; higher alcohols such as cetanol and oleyl alcohol; polyoxyethylene sorbitan fatty acid esters; propylene glycol , 1,3-butylene glycol, isoprene glycol, polyethylene glycol and the like; polyhydric alcohols such as glycerin and the like can be mentioned.
The content of the nail protectant in the remover of the present invention is preferably 10% by mass or less, more preferably 5% by mass or less, still more preferably 3% by mass, from the viewpoint of not impairing the effect of the present invention and protecting the nail. It is as follows. The lower limit is not particularly limited, but is preferably 0.5% by mass or more.

The remover of the present invention may contain an antioxidant. The antioxidant is not particularly limited, but tocopherol acetate is preferable from the viewpoint of safety and availability.
The content of the antioxidant in the remover of the present invention is preferably 5% by mass or less, more preferably 3% by mass or less, from the viewpoint of not inhibiting the effect of the present invention and preventing oxidation of the remover. The lower limit is not particularly limited, but is preferably 0.5% by mass or more.

The remover of the present invention may contain an amount of water that does not inhibit the solubility of the thermoplastic resin (A) and the volatility of the organic solvent (B). The water content is preferably 10% by mass or less, more preferably 7% by mass or less.

<Beauty nail remover>
The form of the remover of the present invention is preferably gel-like from the viewpoint of forming a film.
The remover of the present invention can effectively remove a particularly base coat portion of a photocurable nail cosmetic such as a soft gel nail. In addition, non-photocurable nail cosmetics such as nail enamel can be effectively removed.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

The compounds used in the examples are as follows.
<Thermoplastic resin (A)>
PVB: Polyvinyl butyral PVB1: "BL-S" (hydroxyl: about 22 mol%, acetyl group 3-5 mol%, degree of butyralization: 74 ± 3 mol%, viscosity at 20 ° C. by BM type rotary viscometer: 10- 30 mPa · s, number average molecular weight: about 23,000, glass transition temperature: 61 ° C., PVB2 manufactured by Sekisui Chemical Industry Co., Ltd .: "BM-1" (hydroxyl group: about 34 mol%, acetyl group 3 mol% or less, Degree of butyralization: 65 ± 3 mol%, viscosity at 20 ° C by BM type rotational viscometer: 60 to 100 mPa · s, number average molecular weight: about 4,000,000, glass transition temperature: 67 ° C), Sekisui Chemical Industry Co., Ltd. PVB3: "BH-3" (hydroxyl group: approx. 34 mol%, acetyl group: 3 mol% or less, degree of butyralization: 65 ± 3 mol%, viscosity at 20 ° C. by BM type rotary viscometer: 60 to 120 mPa · s, Number average molecular weight: Approximately 111,000, glass transition temperature: 71 ° C), PVP manufactured by Sekisui Chemical Industry Co., Ltd .: Polyvinylpyrrolidone PVP1: "K90" (K value: 84-95), PVP2 manufactured by Tokyo Kasei Kogyo Co., Ltd .: "Pitzcall K-90" (K value: 92 to 96, weight average molecular weight: 1,200,000), PVP3 manufactured by Daiichi Kogyo Seiyaku Co., Ltd .: "Pittscol K-50" (K value: 48 to 52, Weight average molecular weight: 250,000), PVP4 manufactured by Daiichi Kogyo Seiyaku Co., Ltd .: "Pitzcol K-30" (K value: 27 to 33, weight average molecular weight: 45,000), PVA manufactured by Daiichi Kogyo Seiyaku Co., Ltd. : Partially saponified polyvinyl alcohol ("JMR-150L", degree of saponification: 23 mol%, melting point: 190 ° C, manufactured by Nippon Vinegar Bi-Poval Co., Ltd.)
EC: Ethyl cellulose ("STD-200", weight average molecular weight: 187,800, number average molecular weight: 80,733, manufactured by Dow Chemical Co., Ltd.)

<(A') component>
HPC: Hydroxypropyl Cellulose ("VH", manufactured by Nippon Soda Corporation)
HPMC: Hydroxypropyl Methyl Cellulose ("60SH-10000", manufactured by Shin-Etsu Chemical Co., Ltd.)
PEG: Polyethylene glycol ("PEG20000", manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)
Bentonite: "Kunibis-110", manufactured by Kunimine Industries, Ltd.

<Organic solvent (B)>
DMC: Dimethyl carbonate (boiling point: 90 ° C)
Acetone (boiling point: 56 ° C)
Ethyl acetate (boiling point: 77.1 ° C)
EMC: Ethylmethyl carbonate (boiling point: 107 ° C)

<(B') component>
Propylene carbonate (boiling point: 240 ° C)
Ethylene carbonate (boiling point: 260.7 ° C)

<Other ingredients>
Ethanol Propylene Glycol Tocopherol Acetate

Examples 1-31 and Comparative Examples 1-8
Each sample was put into a 100 mL glass bottle with the composition (mass ratio) shown in the table, a stirrer was added, and then the glass bottle was sealed. This glass bottle was placed on a magnetic stirrer and stirred for a sufficient time until a uniform solution was obtained to prepare a nail remover (remover). For the sample which was considered to be difficult to dissolve at room temperature, a remover was prepared by stirring while warming with warm water at 45 to 50 ° C. The following evaluations were performed for each of the obtained removers.

[Evaluation method]
(1) Transparency The sample was visually observed and evaluated according to the following criteria. The higher the transparency, the more the thermoplastic resin (A) is compatible with the organic solvent (B) to maintain a uniform state.
5: Transparent 4: Translucent 3: Slightly cloudy 2: White turbidity 1: White turbid and two-layer separation

(2) Applyability (fluidity)
Whether or not there was fluidity at the time of sample application was visually observed and evaluated according to the following criteria.
〇: With liquidity ×: No liquidity

(3) Membrane-forming pig hoof was sequentially applied with "Power Base", "Color Gel" and "Crystal Top" of "SHINYGEL Professional" manufactured by World Beauty Works Co., Ltd. to form a gel nail. A sample was applied on the gel nail to form a coating film. The coating film after being left for 15 minutes was evaluated by finger touch according to the following criteria.
5: Sufficiently strong coating film is formed and there is no adhesion 4: Sufficiently strong coating film is formed but slightly adhered 3: Strong coating film is formed but slightly adhered 2: Strong coating No film is formed and there is adhesion 1: No coating film is formed

(4) Peelability The gel nail on which the coating film of the above (3) was formed was peeled off with a spatula, and the difficulty was evaluated according to the following criteria.
5: The gel nail swells and the gel nail can be easily peeled off with a light force.
4: The gel nail swells and most of the gel nail can be easily peeled off with a light force, but some force is required for peeling. 3: The gel nail swells and the gel nail can be peeled off with a light force. However, about half of it requires force to peel off 2: The gel nail does not swell so much and it is difficult to peel off the gel nail 1: There is almost no change

As is clear from the results shown in the table, the present invention contains a specific thermoplastic resin (A) such as polyvinyl butyral resin and polyvinylpyrrolidone resin, and a specific organic solvent (B) having a boiling point of 40 to 130 ° C. Remover has excellent film-forming properties. Therefore, it has an excellent effect that the person to be treated can move his / her finger to perform other work during the work of removing the beautiful nail agent.
Further, as shown in Table 5, since the remover of the present invention has excellent film-forming properties, it is possible to efficiently remove the beautiful nail agent even if the amount of the organic solvent (B) is reduced, and the beautiful nails can be removed. It also has excellent material removal performance.

Claims (3)

At least one thermoplastic resin (A) selected from the group consisting of polyvinyl butyral, polyvinylpyrrolidone and partially saponified polyvinyl alcohol having a saponification degree of 1 to 50 mol%, and an organic solvent (B) having a boiling point of 40 to 130 ° C.
It is a beauty nail remover containing
The organic solvent (B) is at least one selected from the group consisting of dimethyl carbonate, ethyl methyl carbonate, ethyl acetate, acetone and methyl ethyl ketone .
The content of the thermoplastic resin (A) is 1 to 70% by mass, and the content is 1 to 70% by mass.
A nail remover having a content of the organic solvent (B) of 20% by mass or more and 95% by mass or less . The beauty nail remover according to claim 1 , wherein the organic solvent (B) is dimethyl carbonate. The nail polish removing agent according to claim 1 or 2 , wherein the thermoplastic resin (A) is at least one selected from the group consisting of polyvinyl butyral and polyvinylpyrrolidone.