KR20240060367A - Water soluble nail polish composition for adhering powder - Google Patents

Abstract

The present invention relates to a water-based nail polish composition for adhering powder, and the water-based nail polish composition according to the present invention contains an acrylate-based copolymer and can be used as a base coat for adhering powder. In addition, the present invention provides a water-based nail polish composition that has excellent feeling of use and durability and is easy to do self-nail polish.

Description

Water-based nail polish composition for adhering powder {Water soluble nail polish composition for adhering powder}

The present invention relates to a water-based nail polish composition for adhering powder, and to a water-based nail polish composition containing an acrylate-based copolymer that can be used as a base coat for adhering powder.

Nail polish is a makeup cosmetic that uses a variety of colors to beautify nails. Basically, there are various nail art methods that make your nails beautiful, such as full coat, which applies color to the nail, gradient nail, which expresses color changes in stages, nail art that draws shapes or pictures, and part nail, which attaches jewels.

One of them is nail art using powder, which expresses shine by applying powder such as pearl on the nail. In order to adhere the powder to the nail, apply uncured gel nail polish that acts as a base coat and place the powder on top to adhere it.

Mirror powder is a type of pearl, and its characteristic is that the pearl particles are invisible by rubbing the pearl (powder) on the base coat and making it adhere completely. This is called mirror nail because it is more shiny than regular pearl powder and can create a mirror effect as if reflected in a mirror.

Gel nail polish, which is used as a base coat to adhere the powder, is difficult to apply or remove on your own at home and causes a lot of damage to the nails, making it inconvenient to use a nail salon. On the other hand, water-based nail polish can be easily removed with ethanol, allows you to do nail art yourself at home, and causes less damage to your nails. However, conventional water-based nail polish did not adhere the powder closely, so it could not be used as a base coat for nail art using powder.

Therefore, there is a need for the development of a water-based nail polish composition that can adhere the powder to facilitate access to nail art using powder, especially mirror nails, by using water-based nail polish as a base coat.

KR 10-2016903 B1

In order to solve the problems of the prior art as described above, the purpose of the present invention is to provide a water-based nail polish composition that includes an acrylate-based copolymer and can adhere powder.

Another object of the present invention is to provide a water-based nail polish composition that has excellent feel upon application, drying speed, and feel after drying.

One aspect of the present invention provides a water-based nail polish composition for adhering powder.

The water-based nail polish composition includes an acrylate-based copolymer aqueous solution having a glass transition temperature of -60 to 30°C and a water-soluble film former, and may further include polyol.

The acrylate-based copolymer aqueous solution may contain 30 to 99% by weight based on the total weight of the composition, and the acrylate-based copolymer may contain 5 to 60% by weight based on the total weight of the aqueous solution.

The water-soluble film former may include one or more selected from the group consisting of polyurethane, polyvinylpyrrolidone, polyvinyl acetate, and acrylamide copolymer, and may be included in an amount of 1 to 40% by weight based on the total weight of the composition. You can.

The polyol may be one or more selected from the group consisting of propylene glycol, butylene glycol, glycerin, diglycerin, and panthenol.

The water-based nail polish composition according to the present invention has the effect of allowing powder to adhere closely.

Additionally, the water-based nail polish composition has excellent feel upon application, drying speed, and feel after drying.

Additionally, the water-based nail polish composition has excellent adhesion and durability.

Additionally, the water-based nail polish composition has no irritating odor, can be easily removed, and causes little damage to nails.

In addition, the water-based nail polish composition has the effect of enabling self-expression of nail art using powder, especially mirror nails.

Figure 1 is a photograph showing the results of a powder adhesion test according to an embodiment of the present invention.
Figure 2 is a photograph showing the results of a feeling of use test according to an embodiment of the present invention.
Figure 3 is a photograph showing the results of a powder adhesion test according to another embodiment of the present invention.

Hereinafter, the present invention will be described in more detail through examples. However, these examples are for illustrative purposes only and should not be construed as limiting the scope of the present invention.

One aspect of the present invention provides an aqueous nail polish composition comprising an acrylate copolymer having a glass transition temperature of -60°C to 30°C.

The term “nail polish” refers to an enamel-like liquid applied to fingernails or toenails to add shine or color.

The term “glass transition temperature (Tg)” can be defined as the temperature at which the molecules of a polymer material become active and begin to move due to the temperature. Since the value is different for each polymer material, the temperature of the polymer material is one of the important characteristics of The glass transition temperature can be measured by conventional methods, for example, by differential scanning calorimeter (DSC) or dynamic mechanical analysis (DMA). The glass transition temperature of the copolymer is between the glass transition temperatures of the homo polymer, and its position changes depending on the copolymer composition. In other words, the glass transition temperature changes depending on the ratio of different types of monomers to be copolymerized. The above “glass transition temperature of homogeneous polymer” refers to the glass transition temperature of a polymer composed of one type of monomer. Accordingly, a person skilled in the art to which this invention pertains can appropriately select a copolymer having the desired glass transition temperature. Additionally, when directly producing a copolymer having a desired glass transition temperature, the types and ratios of monomers constituting the copolymer can be appropriately selected.

The water-based nail polish composition of the present invention may be used as a base coat for adhering the powder by containing 30 to 99% by weight of an acrylate copolymer aqueous solution based on the total weight of the composition.

The term “base coat” refers to nail polish applied as a primer prior to applying nail polish that provides shine or color. Additionally, the base coat serves as a base for attaching pearls, mirror powder, and parts. Base coats are used to protect fingernails and toenails, prevent discoloration, and improve color development and adhesion.

The term “pearl” or “pearl powder” refers to a powder with a pearlescent luster. Pearl powder has pearl luster and gorgeous colors, and can express sparkle depending on the refraction or reflection of light. Pearl powders include, for example, mica, alumina, magnesium myristate, calcium aluminum borosilicate, boron nitride, and sericite. There is.

The term “mirror powder” or “mirror powder pearl” refers to a powder used for mirror nails that make the nail look like a mirror. Mirror powder is applied by applying powder on top of the base coat and rubbing it. Mirror powder is used in close contact with the base coat, and unlike regular pearls, the powder is completely adhered to the base coat, making the powder particles invisible and forming a smooth surface that reflects light. It has a mirror-like effect.

The water-based nail polish composition of the present invention may further include a water-soluble film former, polyol and/or other additives, and may be prepared according to a conventional method.

A, acrylate-based copolymer

In the present invention, the acrylate-based copolymer has excellent adhesion to the powder, allowing the powder to adhere closely, and forming a film when applied to create color, gloss, and cosmetic effects on the nails.

In the present invention, the acrylate-based copolymer may have a glass transition temperature of -60°C to 30°C. As a preferred embodiment, the acrylate-based copolymer of the present invention may have a glass transition temperature of -60 ℃ or higher, -40 ℃ or higher, -20 ℃ or higher, 0 ℃ or higher, or 10 ℃ or higher, and 30 ℃ or lower, It may have a glass transition temperature of 25°C or lower or 20°C or lower. In the present invention, the water-based nail polish composition containing a polymer having a low glass transition temperature outside the above range does not dry into a smooth film when applied to nails and remains sticky. Additionally, the durability is not good, so it is difficult to have lasting power. In the present invention, the water-based nail polish composition containing a polymer having a high glass transition temperature outside the above range has low adhesion, making it difficult to adhere the powder.

The acrylate-based copolymer may be a water-soluble resin.

The acrylate-based copolymer may include all copolymers formed by polymerizing two or more types of acrylate-based monomers. The acrylate-based monomer may include salts, esters, and conjugate bases of acrylic acid, methacrylic acid, and their derivatives. Types of acrylate monomers include acrylates, methacrylates, methyl acrylate, ethyl acrylate, and 2-chloroethyl vinyl ether. , 2-ethylhexyl acrylate, hydroxyethyl methacrylate, butyl acrylate, butyl methacrylate, trimethylolpropane triacrylate ( It may include, but is not limited to, trimethylolpropane triacrylate (TMPTA). The types of salts may include, but are not limited to, sodium salts, ammonium salts, calcium salts, magnesium salts, etc.

The acrylate-based copolymer may include not only an acrylate copolymer formed by polymerizing two or more monomers composed of acrylic acid, methacrylic acid, or a simple ester thereof, but also various types of copolymers composed of acrylic acid and other monomers. . For example, copolymers of acrylic acid and other monomers include ammonium acrylates copolymer, ammonium VA/acrylates copolymer, sodium acrylates copolymer, Ethylene/acrylic acid copolymer, ethylene/calcium acrylate copolymer, ethylene/magnesium acrylate copolymer, ethylene/sodium acrylate copolymer Polymer (ethylene/sodium acrylate copolymer), ethylene/zinc acrylate copolymer, ethylene/acrylic acid/VA copolymer, acrylate/VP copolymer ( acrylates/VP copolymer), acrylates/VA copolymer, steareth-10 allyl ether/acrylates copolymer, acrylates/steareth-50 Acrylates/steareth-50 acrylate copolymer, acrylates/steareth-20 methacrylate copolymer, acrylates/ammonium methacrylate copolymer, styrene/acrylates copolymer, styrene/acrylates/ammonium methacrylate copolymer, ammonium styrene /acrylates copolymer), sodium styrene/acrylates copolymer, acrylates/hydroxyesters acrylates copolymer, methacryloylethyl betaine/acrylate copolymer Polymer (methacryloyl ethyl betaine/acrylates copolymer), lauryl acrylate/VA copolymer, VA/butyl maleate/isobornyl acrylate copolymer (VA/butyl maleate/isobornyl acrylate copolymer) ), ethylene/methacrylate copolymer, vinyl caprolactam/VP/dimethylaminoethyl methacrylate copolymer, sodium acrylate/acrolein copolymer (sodium acrylates/acrolein copolymer), VP/dimethylaminoethylmethacrylate copolymer, AMP-acrylates copolymer, etc., but is not limited thereto. .

In a broad sense, the acrylate-based copolymer may also include polymers of acrylic acid and its salts. For example, polymers of acrylic acid and its salts include polyacrylic acid, ammonium polyacrylate, potassium aluminum polyacrylate, potassium polyacrylate, and sodium polyacrylate. It may include sodium polyacrylate, etc., but is not limited thereto.

The acrylate-based copolymer may be used alone or in combination of two or more types.

In the present invention, the acrylate-based copolymer may be used as an aqueous solution. The acrylate-based copolymer aqueous solution may include 5 to 60% by weight of the acrylate-based copolymer based on the total weight of the aqueous solution. As a preferred embodiment, the acrylate-based copolymer contained in the aqueous solution is preferably 5% by weight or more, 10% by weight, 20% by weight or more, or 30% by weight or more, and 60% by weight or less, 55% by weight or less, 50% by weight or less. It is preferable that it is less than 45% by weight or less.

The acrylate-based copolymer aqueous solution may be prepared by dispersing the acrylate-based copolymer in purified water, but is not limited thereto. Additionally, for stabilization, additives commonly used in the technical field to which the present invention pertains may be further included.

In the present invention, the acrylate-based copolymer aqueous solution may be included in an amount of 30 to 99% by weight based on the total weight of the composition, but is not limited thereto. As a preferred embodiment, the acrylate-based copolymer aqueous solution of the present invention is preferably 30% by weight or more, 40% by weight or more, 50% by weight or more, 60% by weight or more, or 70% by weight or more, and 99% by weight or less, 95% by weight or more. It is preferable that it is less than 90% by weight, less than 85% by weight, or less than 80% by weight. In the present invention, if the acrylate-based copolymer aqueous solution is less than 30% by weight, a problem may occur in which the powder cannot be closely adhered.

B, water-soluble film former

The composition of the present invention may include a water-soluble film former. The water-soluble film former is prepared as an aqueous solution by dispersing the film former in purified water. It provides spreadability to the composition, improves the feeling of use when applied, and improves durability by helping to form a film after drying. You can.

The water-soluble film former may contain all water-soluble ingredients that form a film on fingernails or toenails, and types include polyurethane (e.g., polyurethane-10, polyurethane-11, polyurethane-15, Polyurethane-40, etc.), polyvinyl pyrrolidone, polyvinyl acetate, acrylamide copolymer, etc., but is not limited thereto. In one embodiment, the water-soluble film former may include polyurethane.

The water-soluble film former may be included in an amount of 1 to 40% by weight based on the total weight of the composition. As a preferred embodiment, the water-soluble film former of the present invention is preferably 1% by weight, 5% by weight, 10% by weight, or 15% by weight, and 40% by weight or less, 35% by weight, or 30% by weight. It is preferable that it is less than or equal to 25% by weight. In the present invention, if the water-soluble film former is less than 1% by weight, cracks may occur or the product may not feel good after application, and if the water-soluble film former is more than 40% by weight, a problem may occur in which the powder does not adhere well.

C, polyol

The composition of the present invention may further include polyol. The polyol can prevent the product from freezing.

“Polyol” is also called polyhydric alcohol and refers to an alcohol with two or more hydroxy groups. The polyol may be any polyol known in the field, for example, propylene glycol, butylene glycol, glycerin, diglycerin, panthenol ( panthenol) or a combination thereof.

D, other additives

Meanwhile, the composition of the present invention may further include additives commonly used in the technical field to which the present invention pertains, depending on the purpose, such as preservatives, thickeners, pigments, fragrances, fillers, preservatives, neutralizers, and ultraviolet rays. It may further comprise any conventional cosmetic ingredients that may be selected from blockers, sweeteners, vitamins, free-radical scavengers, metal ion sequestrants, and mixtures thereof.

Hereinafter, preferred examples will be described in order to explain the present invention in more detail. However, the following examples are provided solely for the purpose of illustrating the present invention and do not limit the present invention.

<Preparation Example 1 of water-based nail polish composition>

Water-based nail polish compositions containing acrylate copolymers with different glass transition temperatures (Tg) were prepared according to the composition (% by weight) in Table 1 below.

First, each raw material was weighed in a beaker according to each component and content listed in Table 1 below, and then mixed uniformly at room temperature using a disper at 200 rpm for 20 minutes. Afterwards, air bubbles were removed at room temperature to prepare a water-based nail polish composition. As a result, a black liquid composition was obtained.

In Table 1, a 28.5% polyurethane aqueous solution was used as a water-soluble film former, pentylene glycol was used as a preservative, and carbon black was used as a pigment.

Ingredients (% by weight) Example Comparative Example 1 Comparative example 2 Comparative Example 3 One Acrylate copolymer aqueous solution
(Tg value -66℃, concentration 55%) - to 100 - - 2 Acrylate copolymer aqueous solution
(Tg value 17℃, concentration 39.4%) to 100 - - - 3 Acrylate copolymer aqueous solution
(Tg value 37℃, concentration 30%) - - to 100 - 4 Water-soluble film former 20.0 20.0 20.0 to 100 5 polyol 2.0 2.0 2.0 2.0 6 antiseptic Appropriate amount Appropriate amount Appropriate amount Appropriate amount 7 pigment Appropriate amount Appropriate amount Appropriate amount Appropriate amount

Powder adhesion test

A powder adhesion test was performed on the compositions of Examples and Comparative Examples.

The powder adhesion test was performed by applying each water-based nail polish composition prepared in Examples and Comparative Examples to the nails, drying them for 5 minutes, applying mirror powder, rubbing them with hands, and observing the mirror effect with the naked eye. .

Figure 1 shows the test results, whether the mirror powder adheres well, that is, whether the mirror effect is expressed.

As shown in Figure 1, Example and Comparative Example 1 containing acrylate copolymers with glass transition temperatures of 17°C and -66°C, respectively, exhibited a mirror effect due to close contact with the mirror powder, but had a glass transition of 37°C. In Comparative Example 2, which included an acrylate copolymer having a high temperature, and Comparative Example 3, which did not contain an acrylate copolymer, the mirror powder did not adhere well and the mirror powder fell off when rubbed by hand.

From Figure 1, it was confirmed that a water-based nail polish composition containing an acrylate copolymer having a glass transition temperature of 30°C or lower can serve as a base coat that adheres the powder.

<Preparation example 2 of water-based nail polish composition>

Water-based nail polish compositions were prepared by varying the contents of acrylate copolymer and water-soluble film former according to the composition (% by weight) in Table 2 below. The specific manufacturing method is the same as Preparation Example 1.

ingredient Example Comparative example 4 Comparative Example 5 One Acrylate copolymer
(Tg value 17℃) to 100 to 100 to 100 2 Water-soluble film former 20.0 - 50.0 3 polyol 2.0 2.0 2.0 4 antiseptic Appropriate amount Appropriate amount Appropriate amount 5 pigment Appropriate amount Appropriate amount Appropriate amount

Usability test

A comparative test of feeling of use was performed on the compositions of Examples and Comparative Examples.

Products using each water-based nail polish composition prepared in Examples and Comparative Examples were provided to 20 women in their 20s and 30s to evaluate the first feeling when applying the product, drying speed, and feeling of use after drying. The overall feeling of use was evaluated and a score was given out of 5, and the average of the scores of 20 people was calculated, and the results are shown in Table 3 below.

1: very bad, 2: bad, 3: average, 4: good, 5: very good

Evaluation items Example Comparative Example 4 Comparative Example 5 feeling of use 4.3 1.5 4.0

As shown in Table 3, the water-based nail polish compositions of Example and Comparative Example 5 in which polyurethane was applied as a water-soluble film former were the water-based nail polish compositions of Comparative Example 4 in which a water-soluble film former was not applied and the content of acrylate copolymer was high. It received a high score compared to the composition. Specifically, the composition of Example and Comparative Example 5 was evaluated as being uniformly leveled when applied, having a fast drying speed, and forming a film film well after drying, giving an excellent feeling of use.

On the other hand, the composition of Comparative Example 4 was evaluated by many to be not smooth due to cracks occurring when dried after application. Figure 2 shows the appearance when Comparative Example 4 was applied and dried, showing that the surface was not smooth as evaluated.

From the feeling of use test, it was confirmed that the overall feeling of use was improved by including a water-soluble film former such as polyurethane in the water-based nail polish composition.

Powder adhesion test

A powder adhesion test was performed on the compositions of Examples and Comparative Examples.

The powder adhesion test was performed by applying each water-based nail polish composition prepared in Examples and Comparative Examples to the nails and drying them for 5 minutes, then applying mirror powder and rubbing it by hand 5 times to visually observe the mirror effect. carried out.

Figure 3 shows the test results, whether the mirror powder adheres well, that is, whether the mirror effect is expressed.

As shown in Figure 3, Example and Comparative Example 4 containing more than 50% by weight of acrylate copolymer aqueous solution exhibited a mirror effect due to close contact with the mirror powder, but contained more than 50% by weight of polyurethane aqueous solution, which is a water-soluble film former. In Comparative Example 5, which had a low content of acrylate copolymer, the mirror powder seemed to adhere closely at first, but when rubbed by hand, the mirror powder came off.

From Figure 3, it can be seen that the water-based nail polish composition containing a high content of acrylate copolymer can adhere the powder, but when the content of acrylate copolymer is low, the adhesion of the powder is poor.

Claims (7)

It contains an acrylate-based copolymer aqueous solution having a glass transition temperature of -60°C to 30°C and a water-soluble film forming agent,
A water-based nail polish composition, wherein the acrylate-based copolymer aqueous solution is contained in an amount of 30 to 99% by weight based on the total weight of the composition. In claim 1,
A water-based nail polish composition, characterized in that the water-based nail polish composition can adhere powder. In claim 1,
An aqueous nail polish composition wherein the water-soluble film former includes at least one member selected from the group consisting of polyurethane, polyvinylpyrrolidone, polyvinylacetate, and acrylamide copolymer. In claim 1,
A water-based nail polish composition, wherein the water-soluble film former is contained in an amount of 1 to 40% by weight based on the total weight of the composition. In claim 1,
A water-based nail polish composition further comprising a polyol. In claim 5,
An aqueous nail polish composition wherein the polyol is at least one selected from the group consisting of propylene glycol, butylene glycol, glycerin, diglycerin, and panthenol. In claim 1,
The acrylate-based copolymer aqueous solution is a water-based nail polish composition comprising 5 to 60% by weight of an acrylate-based copolymer based on the total weight of the aqueous solution.