JP7174403B2 - remover for gel nails - Google Patents

Description

The present invention relates to a gel nail remover.

In recent years, gel nails have been used as nails placed on nails. A gel nail is a nail formed by curing a fluid gel composition containing a photocurable component with light such as ultraviolet rays.
As a method for removing gel nails, Patent Document 1 discloses a method using acetone. Specifically, it discloses a method of soaking cotton or tissue with acetone and placing it on the gel nail to soften and remove the gel nail.

JP 2011-036457 A

On the other hand, acetone as used in Patent Document 1 is a toxic solvent to the human body, and it is desirable to refrain from using it.
SUMMARY OF THE INVENTION An object of the present invention is to provide a novel gel nail remover that can easily remove gel nails.

Means for Solving the Problems As a result of intensive studies on the above problems, the present inventors have found that the above problems can be solved by the following gel nail remover, and have completed the invention.

(1) A gel nail remover containing a compound represented by formula (1) described below and alcohol,
A remover for gel nails, wherein the content of the compound represented by formula (1) is 0.1 to 10.0% by mass with respect to the total weight of the remover for gel nails.
(2) The gel nail remover according to (1), wherein the content of the compound represented by formula (1) is 0.1 to 5.0% by mass with respect to the total mass of the gel nail remover. agent.
(3) The gel nail remover according to (1) or (2), wherein the alcohol content is 50% by mass or more with respect to the total mass of the gel nail remover.
(4) The gel nail remover according to any one of (1) to (3), wherein n is 2.
(5) The gel nail remover according to any one of (1) to (4), wherein the compound represented by formula (1) is menthone.
(6) The gel nail remover according to any one of (1) to (5), further comprising a compound represented by formula (2) described below.
(7) mass ratio of the content of the compound represented by formula (2) to the content of the compound represented by formula (1) (content of compound represented by formula (2)/formula (1) The gel nail remover according to (6), wherein the content of the compound represented by is 1.0 or more.
(8) The gel nail remover according to (6) or (7), wherein m is 2.
(9) The gel nail remover according to any one of (6) to (8), wherein the compound represented by formula (2) is menthol.
(10) The gel nail remover according to any one of (1) to (9), comprising an essential oil obtained from a plant belonging to the Labiatae family and containing the compound represented by formula (1).

ADVANTAGE OF THE INVENTION According to this invention, the novel remover for gel nails which can remove a gel nail easily can be provided.

The present invention will be described in detail below.
As used herein, the term "to" is used to include the numerical values before and after it as lower and upper limits.

The gel nail remover of the present invention (hereinafter also simply referred to as "this remover") is characterized by the compound represented by the formula (1) described later (hereinafter also simply referred to as "compound (1)") ) and alcohol are used in combination, and the content of compound (1) is adjusted within a predetermined range.
Although the detailed reason why gel nails can be easily removed by using this remover is unknown, it is believed that compound (1) causes gel nails to swell more easily, further softening the gel nails, and making them easier to peel off. be done.
As will be described later, the present remover can achieve the desired effect without using acetone, and therefore has less effect on the human body.

Below, each component contained in this remover will be described in detail.

<Compound (1)>
The remover contains compound (1).

In formula (1), R ¹ represents an alkyl group. The number of carbon atoms in the alkyl group is not particularly limited, and is preferably from 1 to 10, and from 1 to 5, from the standpoint of better removal of gel nail polish (hereinafter also simply referred to as "the point at which the effects of the present invention are excellent"). More preferably, 1 to 3 are even more preferable.
Alkyl groups may be straight or branched.
Alkyl groups include, for example, methyl, ethyl, n-propyl, iso-propyl, n-butyl, and tert-butyl groups.

n represents an integer of 1 to 5; Among them, 1 to 3 are preferable, and 2 is more preferable, because the effects of the present invention are more excellent.
In addition, when n is 2 or more, a plurality of R ¹ may be the same or different.
In addition, when n is 2 or more, the substitution position of a plurality of R ¹ is not particularly limited, and may be substituted on different carbon atoms or may be substituted on the same carbon atom.
Also, the steric substitution position of R ¹ is not particularly limited, and may be, for example, either the axial position or the equatorial position.

Compound (1) is preferably a compound represented by formula (1-1) in that the effects of the present invention are more excellent.

In formula (1-1), the definition of R ¹ is as described above.
As described above, two R ^1s in formula (1-1) may be the same or different.
Among them, it is preferable that the ^two R ^1s are different from the point of view that the effect of the present invention is more excellent. is preferably an alkyl group of

Specific examples of compound (1) include menthone and isomenthone.

The content of compound (1) in the present remover is 0.1 to 10.0% by mass with respect to the total mass of the present remover, and 0.1 to 5% in that the effect of the present invention is more excellent. 0% by mass is more preferred.
Compound (1) may be used alone or in combination of two or more. When two or more compounds (1) are used, the total amount is within the above range.
When two or more kinds of compound (1) are used, an aspect in which optical isomers are used may be adopted.

<Alcohol>
The remover contains alcohol.
The number of carbon atoms in the alcohol is not particularly limited, and is preferably from 1 to 10, more preferably from 1 to 5, and even more preferably from 2 to 3, from the viewpoint that the effects of the present invention are more excellent.
The number of hydroxyl groups in the alcohol is not particularly limited, and is preferably 1 to 3, more preferably 1, from the standpoint of better effects of the present invention.

Specific examples of alcohols include, for example, methanol, ethanol, propanol, and butanol.

The alcohol content in the present remover is not particularly limited, and is preferably 50% by mass or more, more preferably 85% by mass or more, more preferably 90% by mass or more, based on the total mass of the remover, from the viewpoint that the effect of the present invention is more excellent. 0 mass % or more is more preferable, and 95.0 mass % or more is particularly preferable. The upper limit is not particularly limited, and may be 99.9% by mass or less, and may be 99.5% by mass or less.
Alcohol may be used individually by 1 type, or may be used in combination of 2 or more types. When two or more alcohols are used, the total amount is preferably within the above range.

<Other ingredients>
The remover may contain components other than the compound (1) and alcohol described above.
The remover may contain a compound represented by formula (2) (hereinafter also simply referred to as "compound (2)") in that the effect of the present invention is more excellent.

In formula (2), ^R2 represents an alkyl group. The number of carbon atoms in the alkyl group is not particularly limited, and is preferably from 1 to 10, more preferably from 1 to 5, and even more preferably from 1 to 3, from the standpoint of excellent effects of the present invention.
Alkyl groups may be straight or branched.
Alkyl groups include, for example, methyl, ethyl, n-propyl, iso-propyl, n-butyl, and tert-butyl groups.

m represents an integer of 1 to 5; Among them, 1 to 3 are preferable, and 2 is more preferable, because the effects of the present invention are more excellent.
In addition, when m is 2 or more, a plurality of R ² may be the same or different.
In addition, when m is 2 or more, the substitution position of a plurality of R ² is not particularly limited, and may be substituted on different carbon atoms or may be substituted on the same carbon atom.
Moreover, the steric substitution position of ^R2 is not particularly limited, and may be, for example, either the axial position or the equatorial position.

Compound (2) is preferably a compound represented by formula (2-1) in that the effects of the present invention are more excellent.

In formula (2-1), the definition of R ² is as described above.
As described above, two R ² in formula (2-1) may be the same or different.
Among them, it is preferable that the two R ² are different from the viewpoint that the effect of the present invention is more excellent, one of the two R ² is an alkyl group having 1 to 2 carbon atoms, and the other is an alkyl group having 3 to 5 carbon atoms. is preferably an alkyl group of

Specific examples of compound (2) include menthol, isomenthol, neomenthol, and neoisomenthol.

The content of compound (2) in the present remover is not particularly limited, and is preferably 0.1 to 20.0% by mass with respect to the total mass of the remover, from the viewpoint that the effect of the present invention is more excellent. .2 to 10.0% by mass is more preferable, and 5.0 to 10.0% by mass is even more preferable.
Compound (2) may be used alone or in combination of two or more. When two or more compounds (2) are used, the total amount is within the above range.
When two or more kinds of compounds (2) are used, an aspect in which optical isomers are used may be adopted.

The mass ratio of the content of compound (2) to the content of compound (1) (content of compound (2)/content of compound (1)) is not particularly limited, and is 0.1 or more. 1.0 or more is preferable in that the effect of the present invention is more excellent. The upper limit is not particularly limited, and is preferably 10.0 or less, more preferably 5.0 or less, and even more preferably 2.0 or less.

The remover may contain other components (for example, an organic solvent other than alcohol, water) in addition to the compound (2).
In addition, this remover may contain acetone as needed. However, since it is preferable that the present remover has little effect on nails and skin and that it has little odor, it is preferable that it does not substantially contain acetone. Note that "substantially free of acetone" means that the content of acetone in the remover is 0.5% by mass or less with respect to the total mass of the remover, and 0.1% by mass. The following are preferable, and 0% by mass is more preferable.

The remover contains an essential oil obtained from a plant belonging to the Labiatae family, and the essential oil preferably contains the compound (1). In other words, the remover preferably contains an essential oil obtained from a plant belonging to the Labiatae family and containing the compound (1). That is, compound (1) is preferably derived from an essential oil obtained from a plant belonging to the Labiatae family.
In addition, the essential oil obtained from the plant belonging to the Labiatae family may further contain the compound (2).
Furthermore, the essential oil obtained from a plant belonging to the Labiatae family contains other components (e.g., 1,8-cineol, menthyl acetate, menthofuran, limonene, β-caryophyllene) other than compound (1) and compound (2). may contain.

The method for producing this remover is not particularly limited, and the above-described components may be mixed. For example, compound (1) and alcohol may be mixed in predetermined amounts to produce the remover. Alternatively, the present remover may be produced by mixing an essential oil obtained from a plant belonging to the Labiatae family containing the compound (1) and alcohol.

The remover is used for removing gel nails.
A gel nail is, as described above, a nail (decoration) formed by curing a fluid gel composition (nail composition) containing a photocurable component with light such as ultraviolet rays. As a method for forming a gel nail, for example, there is a method in which a gel-like composition containing a photocurable component is applied to the surface of the nail and then cured by irradiation with light such as ultraviolet rays. .
The light used for curing includes ultraviolet light and visible light.
The photocurable component may be a component that can be cured by light irradiation (e.g., a component that can proceed with a polymerization reaction), for example, a compound having a (meth)acryloyl group (e.g., urethane acrylate, epoxy acrylate, etc.). compounds having a photopolymerizable group such as
Moreover, the composition containing the photocurable component may further contain a photopolymerization initiator.

The method of using the remover is not particularly limited, and the remover may be brought into contact with the gel nail. For example, a method of impregnating a base cloth such as cotton or tissue with the remover and bringing the base cloth impregnated with the remover into contact with the gel nail, and a method of immersing the gel nail in the remover. mentioned.
The contact time between the present remover and the gel nail is not particularly limited, and is preferably 10 seconds or longer, more preferably 30 seconds or longer, and even more preferably 60 seconds or longer, from the viewpoint of better effects of the present invention. The upper limit is not particularly limited, and 30 minutes or less is preferable from the point that the effect saturates.
A gel nail in contact with the remover is swollen and softened. The softened gel nail can be easily scraped off from the nail using a nail wipe or a stick-like instrument.

The base fabric is not particularly limited, and may be made of natural fibers or chemical fibers.
Natural fibers include, for example, pulp, cotton, hemp, flax, wool, camel, cashmere, mohair, cellulose, and silk.
Synthetic fibers include rayon, polynosic, acetate, triacetate, nylon, polyester, polyacrylonitrile, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polyethylene, polypropylene, polyurethane, polyalkylene paraoxybenzoate, polyethylene terephthalate, and polyclar. be done.

Moreover, the fabric weight (mass per unit area) of the base fabric is preferably 100 g/m ² or less. The impregnation amount when the base fabric is impregnated with the removing agent is preferably at least 1 time the mass of the base fabric.

The present invention will be described in further detail based on examples below. The materials, amounts used, ratios, processing details, and processing procedures shown in the following examples can be changed as appropriate without departing from the gist of the present invention. Therefore, the scope of the present invention should not be construed as limited by the examples shown below.

<Examples 1 to 5, Comparative Examples 1 to 2>
The amount of menthone (g) shown in Table 1 was mixed with ethanol to prepare a total of 10 g of solution.

<Peelability evaluation 1>
A nail composition (trade name: Polygelica) is applied onto a glass substrate, and the coating film is irradiated twice with a UV lamp (output 36 W) for 2 minutes to cure the coating film to obtain a cured film. (gel nail) was obtained.
Next, a Kimwipe was impregnated with the solution prepared above, and the resulting Kimwipe was placed on the cured film for 90 seconds. After that, the Kimwipe was removed, a spatula was pressed against the cured film to remove the cured film, and evaluation was performed according to the following criteria. Table 1 shows the results.
"A": 95% or more of the cured film could be removed.
"B": 80% or more and less than 95% of the cured film could be removed.
"C": More than 20% of the cured film remained.

In Table 1, "amount of menthone (g)" represents the amount of menthone used in each example.
"Menthone content (% by mass)" represents the content (% by mass) of menthone with respect to the total mass of the solution.

As shown in Table 1, the desired effects were obtained in Examples 1 to 5 in which the menthone content (% by mass) was within a predetermined range.
Above all, as shown in Examples 1 to 4, when the content (% by mass) of menthone was 0.1 to 5.0% by mass, more excellent effects were confirmed.

<Examples 6 to 8>
A total of 10 g of solution was prepared by mixing menthone in the amount (g) of menthone shown in Table 2, menthol in the amount (g) of menthol, and ethanol.

<Peelability evaluation 2>
A nail composition (trade name: Polygelica) is applied onto a glass substrate, and the coating film is irradiated twice with a UV lamp (output 36 W) for 2 minutes to cure the coating film to obtain a cured film. (gel nail) was obtained.
Next, a Kimwipe was impregnated with the solution prepared above, and the resulting Kimwipe was placed on the cured film for 30 seconds. After that, the Kimwipe was removed, a spatula was pressed against the cured film to remove the cured film, and evaluation was performed according to the following criteria. Table 2 shows the results.
"A": The cured film was completely removed.
"B": 95% or more and less than 100% of the cured film could be removed.
"C": 90% or more and less than 95% of the cured film could be removed.

In Table 2, "amount of menthone (g)" represents the amount of menthone used in each example.
"Menthone content (% by mass)" represents the content (% by mass) of menthone with respect to the total mass of the solution.
"Amount of menthol (g)" represents the amount of menthol used in each example.
"Menthol content (% by mass)" represents the content of menthol (% by mass) with respect to the total mass of the solution.

As shown in Table 2, when menthone and menthol were used in combination, better effects were confirmed.
Above all, as shown in Examples 7 and 8, when the ratio of the menthol content to the menthone content was 1.0 or more, more excellent effects were confirmed.

In addition, a predetermined amount of essential oil obtained from a plant belonging to the Labiatae family containing menthone and menthol, and ethanol are mixed, and menthol is added separately to obtain the same menthone content (% by mass) and A solution adjusted to the menthol content (% by mass) was produced and its specificity was evaluated.

Claims (8)

A gel nail remover containing a compound selected from the group consisting of menthone and isomenthone and alcohol,
A remover for gel nails, wherein the content of the compound is 0.1 to 10.0% by mass with respect to the total weight of the remover for gel nails. The gel nail remover according to claim 1, wherein the content of said compound is 0.1 to 5.0% by mass with respect to the total mass of said gel nail remover. The gel nail remover according to claim 1 or 2, wherein the content of said alcohol is 50% by mass or more with respect to the total mass of said gel nail remover. The gel nail remover according to any one of claims 1 to 3 , further comprising a compound represented by formula (2).

In formula (2), ^R2 represents an alkyl group. m represents an integer of 1 to 5; The mass ratio of the content of the compound represented by the formula (2) to the content of the compound (content of the compound represented by the formula (2) / content of the compound ) is 1 The gel nail remover according to claim 4 , which is 0.0 or more. The gel nail remover according to claim 4 or 5 , wherein m is 2. The gel nail remover according to any one of claims 4 to 6 , wherein the compound represented by formula (2) is menthol. The gel nail remover according to any one of claims 1 to 7 , comprising an essential oil obtained from a plant belonging to the Labiatae family and containing the compound .