KR102500339B1 - Composition for removing manicure - Google Patents

Abstract

The present invention relates to a composition for removing nail polish. More specifically, the composition for removing nail polish according to the present invention has excellent nail polish removal performance, excellent texture when used, and is harmless to the human body and environmentally friendly because it does not irritate skin or smell.

Description

Composition for removing nail polish {Composition for removing manicure}

The present invention relates to a composition for removing nail polish.

Manicure is applied to the fingernails or toenails to beautifully decorate the fingernails or toenails. Such nail polish is a type of enamel paint, and its main component is enamel, which is usually made of nitro cellulose, and various pigments may be added to produce various colors.

Although it is important to use nail polish to decorate the beauty of the nail or toenail, it is very important to remove the applied nail polish for the health of the nail or toenail and to apply nail polish of a different color or shape. In order to remove such nail polish, a so-called nail polish remover (remover) is used, and acetone, ethyl acetate, butyl acetate, and the like are used as common nail polish remover ingredients sold on the market. However, these substances have high volatility and permeability in the process of dissolving nail polish (enamel), so they are inhaled into the human body and cause damage to the respiratory system, or cause nail damage due to severe irritation.

In order to solve this problem, Korean Patent Publication No. 10-2011-0103570 tried to manufacture a nail polish remover using natural ethanol as a main component. High removal capacity is required.

Therefore, there is an urgent need to develop a composition for removing nail polish that is harmless to the human body and has excellent nail polish removal performance.

Republic of Korea Patent Publication No. 10-2011-0103570

The problem to be solved by the present invention is to provide a composition for removing nail polish that is harmless to the human body, non-irritating and environmentally friendly while having excellent nail polish removal performance.

In order to solve the above problems, the present invention provides a composition for removing nail polish (manicure) comprising a component represented by the following formula (1) and an abrasive:

[Formula 1]

.

.

As used herein, the term "manicure" includes not only manicure applied to nails but also "pedicure" applied to toenails. Any applied nail polish can be removed.

Compared to acetone, ethyl acetate, butyl acetate, etc., which are generally used in the past, the present inventors have found that, when applied by including both the component represented by Formula 1 and an abrasive in a nail polish removal composition, i) not only exhibits excellent nail polish removal performance, but also , ii) Problems due to high volatility, which is a problem in acetone, etc. due to low volatility (problems that elute fat from the skin and evaporate skin moisture at the same time, roughening the skin, causing severe irritation, dehydration, and degreasing effect on nails and toenails ), and iii) it is harmless to the human body because it does not penetrate nails and skin because it has a relatively large molecular weight, and iv) it is environmentally friendly because it is a compound of a ketal structure derived from nature, thereby completing the present invention.

In Formula 1, R ₁ and R ₂ may independently be hydrogen or alkyl having 1 to 24 carbon atoms, or R ₁ and R ₂ may be linked to each other to be cycloalkyl having 3 to 24 carbon atoms, preferably R ₁ and R ₂ may each independently represent alkyl having 1 to 12 carbon atoms, and more preferably, R ₁ and R ₂ may each independently represent alkyl having 1 to 6 carbon atoms.

The component represented by Formula 1 according to the present invention can be obtained through a condensation reaction of glycerol and a ketone, and the glycerol used in this case has recently been mass-produced with the activation of the biodiesel industry, so the treatment problem is emerging. , It is characterized in that it can also help with the treatment problem of glycerol by using it as the present invention.

In particular, the present inventors evaluated excellent nail polish removal performance, texture during use, skin irritation and odor stimulation using glycerol dimethylketal, where R ₁ and R ₂ are methyl having 1 carbon atom independently of each other, and found significant It was confirmed that there is an effect, and therefore most preferably, both R ₁ and R ₂ may be methyl.

The glycerol dimethylketal is a compound represented by Formula 2 below, and has a molecular formula of C ₆ H ₁₂ O ₃ and a molar mass of 132.16. A compound represented by Formula 2 may include all of glycerol dimethyl ketal isolated from a sample containing glycerol dimethyl ketal, artificially synthesized glycerol dimethyl ketal, and commercially available glycerol dimethyl ketal.

[Formula 2]

In the present invention, the component represented by Formula 1 may be included in 10 to 80% by weight, preferably 30 to 80% by weight, more preferably 50 to 80% by weight, based on the total weight of the nail polish removal composition. there is. If the component represented by Formula 1 is included in less than 10% by weight, excellent nail polish removal performance cannot be exhibited, and if it is included in more than 80% by weight, it may negatively affect the feeling or texture when applied, so it is not preferable. not.

In addition, the composition for removing nail polish according to the present invention includes not only the component represented by Chemical Formula 1 but also an abrasive to exhibit excellent nail polish removal performance and the like. When an abrasive is included together, compared to the case of containing only the component represented by Formula 1, the overall effect as a nail polish removal composition is exhibited, and in particular, more excellent nail polish removal performance and ii) achieve texture effect during use It has technical features that allow it to be done.

The present inventors completed the present invention by including an abrasive together with a component represented by Formula 1 in a composition for removing nail polish to confirm a remarkable effect, and generally, those skilled in the art apply it by including an abrasive in a composition for removing nail polish. However, in the present invention, an abrasive is further included when used with a component represented by Formula 1, including an abrasive. It was confirmed experimentally that it exhibits excellent effects, and it was not recognized at all in the prior art that a composition for removing nail polish by including the component represented by Formula 1 and an abrasive at the same time exhibits excellent effects.

The abrasive that can be used in the present invention may be a metal oxide abrasive including silica (silica for polishing) or the like or a calcium and potassium compound including calcium carbonate.

The abrasive may be, for example, silica (silicon dioxide), calcium carbonate, strontium chloride, potassium chloride, calcium phosphate, sodium hydrogen carbonate, potassium nitrate, calcium hydrogen phosphate hydrate, or a mixture of two or more thereof. It is uniform and small, so it has a special feature of low irritation.

Among the abrasives, silica is an abrasive whose stability has already been verified in terms of polishing strength and/or irritation to the extent that it can be used as an abrasive in oral compositions, and the present inventors applied silica to a nail polish removal composition to confirm its excellent effect, and preferably may be silica.

In the present invention, the abrasive may be included in an amount of 0.1 to 20% by weight, preferably 0.1 to 15% by weight, and more preferably 0.1 to 10% by weight, based on the total weight of the nail polish removal composition. If the abrasive is included in less than 0.1% by weight of the total weight of the nail polish removal composition, effective effects may not be exerted, and if included in more than 20% by weight, it may cause damage to nails and/or toenails or skin.

In addition, the composition for removing nail polish according to the present invention exhibits an excellent effect as a composition for removing nail polish without substantially containing acetone, ethyl acetate and/or butyl acetate, which are generally used in conventional nail polish removal compositions, and is harmless to the human body. It is non-irritating and eco-friendly.

As used herein, the term "substantially free" may mean less than 1% by weight, preferably less than 0.5% by weight, more preferably less than 0.1% by weight based on the total weight of the nail polish removal composition. , and most preferably 0% by weight, that is, no content at all. Therefore, the composition for removing nail polish according to the present invention can exhibit an excellent effect as a composition for removing nail polish without including components commonly used in conventional nail polish compositions, just by including the component represented by Formula 1 and the abrasive. It has technical features.

Also, according to one embodiment of the present invention, the nail polish removal composition may include a solvent in addition to the component represented by Chemical Formula 1 and the abrasive, and the solvent is water, preferably purified water.

In the present invention, the solvent may preferably be included in an amount of 10 to 30% by weight based on the total weight of the nail polish removal composition.

In addition, if necessary, additives that provide beneficial properties, such as one or more additives selected from fragrances, nutrients, fragrances, viscosity modifiers, skin moisturizers, and pigments, may be further included, but are not limited to specific types of these additives. The water may be added for miscibility between the additive and the component represented by Formula 1 and the abrasive, and for adjusting the viscosity or flowability of the nail polish removal composition.

The composition for removing nail polish according to the present invention has excellent nail polish removal performance, excellent texture when used, and is harmless to the human body and eco-friendly because it does not irritate skin or smell.

Hereinafter, examples and the like will be described in detail to aid understanding of the present invention. However, the embodiments according to the present invention can be modified in many different forms, and the scope of the present invention should not be construed as being limited to the following examples. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

Composition for removing nail polish ( Example and comparative example ) manufacturing

The present inventors prepared a composition for removing nail polish according to the present invention by mixing the components shown in Table 1 below. Example 1 is a composition for removing nail polish containing silica as an abrasive in glycerol dimethylketal according to the present invention, Comparative Example 1 is a composition containing glycerol dimethylketal and no abrasive, and Comparative Examples 2 and 3 is a composition for removing nail polish containing conventionally used acetone and ethyl acetate, which are not components according to the present invention.

ingredient
(Unit: % by weight) Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Purified water 22.5 27.5 27.5 27.5 glycerol dimethylketal 70 70 0 0 glycerin 2 2 2 2 Silica (abrasive) 5 0 0 0 acetone 0 0 70 0 ethyl acetate 0 0 0 70 Spices 0.5 0.5 0.5 0.5

The present inventors evaluated the nail polish removal performance, texture, skin irritation, and odor irritation of the nail polish removal compositions of Example 1 and Comparative Examples (1 to 3).

<Evaluation of composition for removing nail polish>

Experimental example 1: Evaluation of nail polish removal performance

To evaluate the nail polish removal performance of the nail polish removal composition, the present inventors first applied commercially available nail polish evenly to the nail, and then dried/fixed the nail polish for 1 hour. Thereafter, 1.5 ml of the nail polish removal composition according to Example 1 and Comparative Examples 1, 2 and 3 was applied to a cotton pad and rubbed 15 times with the same force, and the results are shown in Table 2 below.

The evaluation criteria are as follows.

Good (○): Nail polish was completely removed.

Normal (△): Most of the nail polish is removed, but some of it remains.

Poor (x): Most of the manicure remained.

Experimental example 2: Texture evaluation during use

In order to evaluate the texture of the composition for removing nail polish, the present inventors first applied commercially available nail polish evenly to the nail, and then dried/fixed the nail polish for 1 hour. Thereafter, 1.5 ml of the nail polish removal composition according to Example 1 and Comparative Examples 1, 2 and 3 was applied to a cotton pad to remove the nail polish, and the touch when rubbed was sensory evaluated, and the results are shown in Table 2 below. was

The evaluation criteria are as follows.

Good (○): It is removed smoothly and there is no dripping.

Normal (Δ): Some resistance is felt or there is some dripping.

Poor (X): Strong resistance is felt or there is a lot of dripping.

Experimental example 3: Evaluation of skin irritation (sensory evaluation)

The present inventors applied the nail polish removal compositions of Example 1 and Comparative Examples 1, 2 and 3 to the nails and the back of the hand for skin irritation evaluation (sensory evaluation) of the nail polish removal composition, and after 30 seconds, wiped with a dry cloth. The state of the nails and back of the hand was sensory evaluated, and the results are shown in Table 2 below.

The evaluation criteria are as follows.

Good (○): It is soft without drying.

Normal (Δ): Slightly dry or stiff.

Poor (x): The skin and nails became white and rough.

Experimental example 4: Assessment of odor stimuli

The present inventors sensory evaluated odor stimulation when using the nail polish removal compositions of Example 1 and Comparative Examples 1, 2 and 3 to evaluate odor stimulation of the nail polish removal composition, and the results are shown in Table 2 below.

The evaluation criteria are as follows.

Good (○): No irritating odor.

Normal (Δ): Slightly irritating odor.

Poor (x): Strong pungent smell.

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 nail polish removal performance ○ △ ○ △ texture when used ○ △ ○ ○ skin irritation ○ ○ × △ odor stimulation ○ ○ × ×

As shown in Table 2, the composition for removing nail polish of the present invention showed overall superior performance compared to Comparative Examples 1 to 3, and was particularly superior to Comparative Examples 2 and 3 in terms of skin irritation and odor stimulation. confirmed. In addition, in terms of texture during use, a scrub feeling due to the use of an abrasive showed less resistance when removing nail polish, showing excellent evaluation.

Claims (5)

Including a component and an abrasive represented by the following formula (1),
The abrasive is a composition for removing nail polish (manicure) containing 5 to 20% by weight relative to the total weight of the composition for removing nail polish:
[Formula 1]

In Formula 1,
R ₁ and R ₂ are each independently hydrogen or alkyl having 1 to 24 carbon atoms, or R ₁ and R ₂ are connected to each other to be cycloalkyl having 3 to 24 carbon atoms. According to claim 1,
A composition for removing nail polish, characterized in that both R ₁ and R ₂ are methyl. According to claim 1,
A composition for removing nail polish, characterized in that the component represented by Formula 1 is included in 10 to 80% by weight based on the total weight of the composition for removing nail polish. According to claim 1,
The abrasive is silica, calcium carbonate, strontium chloride, potassium chloride, calcium phosphate, sodium hydrogen carbonate, potassium nitrate, calcium hydrogen phosphate hydrate, or a mixture of two or more thereof. delete