KR101525962B1 - Aqueous enamel composition and a method for producing the same - Google Patents

Abstract

The present invention relates to an environmentally friendly aqueous enamel composition for nails and a method for producing the same. Specifically, it is based on organic solvent and nitrocellulose, and uses water-soluble resin in the form of purified water and aqueous dispersion instead of oily enamel for nail which is severely odorous and toxic. It is odorless, is not harmful to human body and environment and is similar to oily enamel for nail A water-based enamel for a nail having functions and effects can be produced. The aqueous enamel for a nail of the present invention is composed of a liquid base and an aqueous colorant. The liquid base may also be used as a colorless transparent nail varnish, as the case may be.

Description

[0001] The present invention relates to a water-based enamel composition and a method for producing the same,

The present invention relates to an environmentally friendly aqueous enamel composition for nails and a method for producing the same.

Background Art [2] Conventionally, oil-based enamel for nails (also called nail enamel or nail polish) is a cosmetics for women used for a cosmetic effect of fingernails and toenails. Nitrocellulose, an alkyd resin, a tosylamide formaldehyde resin, , A polyurethane resin, and a plasticizer such as camphor, ethyl benzoate, dibutyl phthalate and castor oil, and a coloring agent such as an organic pigment, an inorganic pigment and a dye are added In an organic solvent such as an ester system, a ketone system, an alcohol system or a hydrocarbon system.

However, organic solvents and nitrocellulose, which are used as main components of the oily enamel for nails, have a high odor and toxicity, and are at risk of fire and explosion. Particularly, organic solvents are volatile organic compounds (VOCs) harmful to human and atmospheric environments, and they have a problem of causing headache and dizziness when they are used in a space where they are exposed to the smell while being applied to fingernails and toenails.

To solve this problem, Korean Patent Laid-Open Publication No. 10-2006-0066744 discloses a copolymer (E) having an average molecular weight of 10,000 to 40,000 and a glass transition temperature (Tg) of 50 to 80 ° C. A nail enamel composition is described. However, since the water-soluble copolymer used in the aqueous nail enamel composition has a high glass transition temperature, it has excellent mechanical properties such as gloss and hardness, but has a problem in that adhesion and water resistance are poor due to insufficient film formation at a high relative humidity or at low temperatures have.

Korean Patent Publication No. 10-2012-0039080 discloses an aqueous nail polish composition using a water-soluble resin production method, wherein the glass transition temperature is from -5 to 30 ° C. However, since the water-soluble resin used in the aqueous manicure composition has a low glass transition temperature, the film-forming auxiliary agent is reduced. However, even after completely dried, the water-soluble resin tends to remain peeled off and sticky to remain so that the quality thereof is lower than that of the conventional oily nail enamel. .

Accordingly, in developing various compositions for solving such problems, an enamel composition which is eco-friendly and superior in quality to conventional nail enamel has been developed.

KR 10-2006-0066744A Abstract and claim 1 KR 10-2012-0039080A Abstract and claim 1

It is an object of the present invention to provide an aqueous enamel composition for nails which is odorless and environmentally friendly using a water-soluble resin in the form of an aqueous dispersion.

Another object of the present invention is to provide an aqueous enamel composition in which an aqueous enamel composition is mixed with an aqueous coloring agent.

One aspect is directed to an aqueous enamel composition comprising a liquid base comprising a water soluble resin.

In one embodiment, there is provided an aqueous enamel composition comprising a liquid base composed of purified water, a water-soluble resin, a film forming aid, a viscosity aid, a surfactant and a defoaming agent.

The purified water means a filter or water from which impurities have been removed through distillation, but is not limited thereto. The purified water is a main solvent which is harmless to the human body and environment and is used for manufacturing a water-based enamel composition for a nail, and it controls the viscosity and dryness of the water-based enamel for nails, and is used as a main solvent for nail oil enamel, such as esters, ketones, It is possible to produce an environmentally friendly aqueous enamel composition for a nail because it is used in place of a hydrocarbon-based organic solvent. The purified water includes purified water required for the synthesis of a water-soluble resin, and includes 30 to 80% by weight, 40 to 70% by weight, preferably 46 to 66% by weight based on the total weight of the aqueous enamel composition for nails.

When the purified water is less than 46% by weight, the viscosity of the aqueous enamel composition for a nail rises to an appropriate viscosity or more and the spreadability decreases. When the purified water exceeds 66% by weight, the viscosity of the aqueous enamel composition for nails decreases, The separation speed between the pigment and the water-soluble resin is faster than that of the water-based enamel composition for nails containing an appropriate level of purified water. Therefore, it is preferable that the purified water contains 46 to 66% by weight.

The water-soluble resin represents a substance that functions to determine the basic physical properties of the composition.

The water-soluble resin is a film-forming agent that determines basic physical properties of a coating film and improves gloss, improves adhesion, and prevents pigment precipitation. Any water-soluble resin may be used for this purpose. The water-soluble resin may be any one selected from the group consisting of water-dispersible urethane resin, water-dispersed acrylic urethane resin, water-dispersed acrylic resin and water-dispersed acrylic alkyd resin, or a mixture of two or more thereof. Dispersed urethane resin, water-dispersed acrylic urethane resin, water-dispersed acrylic resin, or a mixture of two or more thereof. The water-soluble resin may include a solid content of 15 to 55% by weight, 20 to 50% by weight, and preferably 25 to 45% by weight based on the total weight of the aqueous enamel composition for a nail.

When the solids content of the water-soluble resin is less than 25% by weight, the gloss is lowered and the pigment is not uniformly distributed in the composition, thereby accelerating the precipitation and accelerating the layer separation of the pigment and the water-soluble resin. When the solids content of the water-soluble resin is more than 45% by weight, the viscosity is increased and the separation of the pigment is prevented to some extent, but the spreadability is lowered. Therefore, the water-soluble resin is preferably contained in an amount of 25 to 45% by weight.

The above-mentioned film-forming auxiliary agent is a substance having a function of controlling the dryness and flowability of the composition and allowing the film-forming to proceed well.

The above-mentioned film-forming aid has a temporary plasticizing function to assist the formation of the coating film and to evaporate relatively quickly after the coating film is formed to improve the strength of the coating film. Any auxiliary film forming agent for this purpose may be used, Include ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, ethylene glycol monopropyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monopropyl ether, diethylene Propylene glycol monomethyl ether, glycol monohexyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monopropyl ether, propylene glycol phenyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monobutyl ether, dipropylene glycol It is preferable to use ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, propylene glycol monobutyl ether, or a mixture of two or more thereof . In this case, the film-forming auxiliary agent is contained in an amount of 0.1 to 15% by weight, preferably 0.3 to 10% by weight, more preferably 0.5 to 7% by weight, based on the total weight of the aqueous enamel composition for a nail.

When the content of the film-forming auxiliary is less than 0.5% by weight, the film formation is insufficient and the water resistance decreases. When the content exceeds 7% by weight, the odor of the film-forming auxiliary increases and the viscosity increases during storage. Therefore, it is preferable that the film-forming auxiliary is contained in an amount of 0.5 to 7% by weight.

The viscosifying agent refers to a substance which functions to improve the viscosity of the composition and to prevent the precipitation of the pigment and improve the spreadability.

The viscosity aids are intended to enhance the viscosity of the aqueous enamel composition for nails and prevent pigment deposition. Any viscosity-adjusting agent used for this purpose can be used. The viscosifier may be selected from cellulose derivatives such as hydroxymethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, methylcellulose and ethoxycellulose, and acrylic acid copolymers, vinyl acetate copolymers, urethane copolymers, urea copolymers, An inorganic compound such as bentonite, hectorite, montmorillonite, smectite, magnesium silicate, magnesium aluminum silicate, sodium magnesium silicate and silica, or a mixture of two or more of them may be used. The viscosity enhancing agent comprises 0.1 to 10% by weight, 0.5 to 8% by weight, preferably 1 to 5% by weight, based on the total weight of the aqueous enamel composition for a nail.

When the content of the viscosity enhancer is less than 1% by weight, the viscosity of the water-soluble resin and the pigment is low due to the low viscosity, and the pigment is precipitated. When the content of the viscosity enhancer exceeds 5% by weight, the viscosity of the aqueous enamel composition for nail The gloss is lowered, the flowability is lost, and the spreadability is lowered. Accordingly, it is preferable that the viscosity auxiliary agent is contained in an amount of 1 to 5% by weight.

The aqueous enamel composition is used as a water-based enamel for nails. The liquid base may also be used as a colorless transparent nail varnish.

Wherein the liquid base comprises, in particular, 46 to 66% by weight of purified water, 25 to 45% by weight of a solid content of a water-soluble resin, 0.5 to 7% by weight of a film forming auxiliary, 1 to 5% by weight of a viscosity adjusting agent, 0.1 to 3% by weight of a surfactant, 0.1 to 2% by weight.

The waterborne resin used in the liquid base composition may be any one selected from the group consisting of water-dispersible urethane resin, water-dispersed acrylic urethane resin, water-dispersed acrylic resin and water-dispersed acrylic alkyd resin, or a mixture of two or more thereof .

The glass transition temperature (Tg) of the water-dispersed acrylic resin may be 30 to 50 ° C. The glass transition temperature (Tg) of the water-dispersed acrylic resin may be 35 to 45 ° C or 38 ° C.

The above-mentioned water-based acrylic resin may be used alone, or an aqueous acrylic urethane resin may be used.

The film forming aid used in the liquid base composition may be any one selected from the group consisting of ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, ethylene glycol monopropyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene Diethylene glycol monohexyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monopropyl ether, propylene glycol phenyl ether, dipropylene glycol monomethyl ether, diethylene glycol monomethyl ether, diethylene glycol monomethyl ether, Propylene glycol monobutyl ether, dipropylene glycol monopropyl ether, or a mixture of two or more thereof.

The viscosity adjustor used in the liquid base may be selected from the group consisting of cellulose derivatives such as hydroxymethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, methylcellulose, and ethoxycellulose, and acrylic copolymers, vinyl acetate copolymers , A urethane copolymer, a urea copolymer and an alkali soluble emulsion and a polymer selected from the group consisting of bentonite, hectorite, montmorillonite, smectite, magnesium silicate, magnesium aluminum silicate, sodium magnesium silicate, Or a mixture of two or more thereof

Another aspect is directed to an aqueous enamel composition comprising the liquid base and the aqueous colorant.

The aqueous enamel composition comprising the aqueous enamel composition and the aqueous colorant may be used in a nail or toenail.

In one embodiment, there is provided an aqueous enamel composition comprising a liquid base consisting of purified water, a water-soluble resin, a film-forming aid, a viscosity aid, a surfactant and a defoaming agent, and an aqueous colorant.

The aqueous colorant includes purified water, an organic pigment and / or an inorganic pigment, a dispersant, a viscosity improver and an antifoaming agent.

A solid content of the water-soluble resin of 25 to 45% by weight, a film-forming auxiliary of 0.5 to 7% by weight, a viscosity adjusting agent of 1 to 5% by weight, a surfactant of 0.1 to 3% by weight, a defoaming agent of 0.1 to 2% by weight % Of an aqueous coloring agent, based on 100% by weight of a liquid base composition consisting of 0.1% to 20% by weight of a water-based enamel composition.

The viscosity adjustor used in the aqueous colorant may be selected from cellulose derivatives such as hydroxymethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, methylcellulose and ethoxycellulose, acrylic copolymers, vinyl acetate A polymer selected from the group consisting of an inorganic compound such as bentonite, hectorite, montmorillonite, smectite, magnesium silicate, magnesium aluminum silicate, magnesium silicate, silica and the like, and a polymer polymer such as a urethane copolymer, urethane copolymer, urea copolymer and alkali soluble emulsion Or a mixture of two or more of them

The organic pigment and / or the inorganic pigment serve to impart hue and control hiding power. The dispersant serves to help the pigment disperse evenly without aggregation.

The pigment is added for imparting silver and color to the aqueous enamel composition for a nail, and any pigment that is not harmful to the human body and the environment may be used. Preferably, titanium oxide, zinc oxide, titanium oxide, iron oxide, It is preferable to use inorganic pigments such as gold, silver, gold, iron, aluminum, mica, talc and kaolin, organic pigments such as phamatone red, phthalocyanine blue or a mixture of two or more thereof. Typical dispersed particles of such pigments are preferably 30 to 15 microns or less, and more preferably 5 to 10 microns or less. Wherein the pigment comprises from 10 to 80% by weight, from 13 to 78% by weight, and preferably from 15 to 75% by weight, based on the total weight of the aqueous colorant composition.

When the content of the pigment is less than 15% by weight, the color is not clear and the pigment becomes difficult to be atomized. When the content of the pigment is more than 75% by weight, the viscosity increases and the pigment dispersibility decreases.

The above-mentioned dispersant uniformly disperses the pigment, prevents the precipitation of the pigment and the separation of the pigment from the water-soluble resin, and maintains the color development and storability of the color. Any dispersant may be used as long as it is used for this purpose. Acrylate copolymer, an ammonium salt of an acrylate copolymer, a polycarboxylic acid alkylol ammonium salt, a polycarboxylic acid alkylammonium salt, a high molecular weight block copolymer, a modified alkylol ammonium salt, a modified alkylammonium salt, a modified polyacrylate, Fatty acid-modified polyethylene, fatty acid-modified polyester, or a mixture of two or more thereof. Wherein the dispersing agent comprises 1 to 40% by weight, 3 to 35% by weight, and preferably 5 to 30% by weight, based on the total weight of the aqueous colorant composition.

When the content of the dispersing agent is less than 5% by weight, the dispersing effect of the pigment is lowered and the pigment is separated and agglomerated to shorten the shelf life and life of the aqueous coloring composition. When the content of the dispersing agent is more than 30% There is a risk of gelation and deterioration.

Specifically, the aqueous colorant comprises 10 to 55% by weight of purified water, 15 to 75% by weight of organic pigments and / or inorganic pigments, 5 to 30% by weight of a dispersant, 0.1 to 10% by weight of viscosity aids, and 0.1 to 3% .

Another aspect is for an aqueous enamel composition further comprising an additive in the liquid base and / or the aqueous colorant.

The aqueous enamel composition may be any of various conventional additives that can be added to the aqueous enamel for nails as a component other than the above-described aqueous enamel composition for nails. Such an additive may further include any one or more of a mixture selected from the group consisting of a surfactant, an antifoaming agent, a flavoring agent, a wax, and a vitamin agent.

Examples of the surfactant include anionic surfactants such as fatty acid salts, higher alcohol sulfuric acid ester salts, liquid fatty acid sulfuric acid ester salts and alkylallylsulfonic acid salts, and polyoxyethylene alkyl ethers, polyoxyethylene alkyl esters, polyoxyethylene sorbitan alkyl Esters, nonionic surfactants such as acetylene alcohol and acetylene glycol, and cationic surfactants such as alkylamine salts and quaternary ammonium salts.

Examples of the defoaming agent include polysiloxane, polydimethylsiloxane, polymethylphenylsiloxane, fluoropolysiloxane, mineral oil, and non-silicone polymer.

Examples of the fragrance include a synthetic fragrance and / or a natural fragrance that emits fragrance such as herb, jasmine, acacia, rose, and hazeel.

Examples of waxes include natural waxes, fatty acid esters, paraffin waxes, polyethylenes, polyolefins, and / or emulsions thereof.

The present invention relates to an environmentally friendly aqueous enamel composition for nails and a method for producing the same. Specifically, the present invention provides a water-based enamel composition for nails using purified water and a water-soluble resin in the form of an aqueous dispersion instead of an organic solvent and nitrocellulose, so that it has no odor and toxicity, and is human and environmentally friendly.

In terms of function and effect, it has no odor than conventional nail oil enamel for nail, it does not irritate even when it accidentally touches the skin, it can be easily wiped off with water, and after it is completely dried, it has high gloss and water resistance, adhesion and hardness It can be used as a water-based enamel for nails and toenails.

Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples.

Example 1. Preparation of aqueous colorant composition

In order to evaluate the function of the aqueous colorant according to the present invention, experiments were conducted as in Table 1, and the results are summarized in Table 2.

1-1. Aqueous colorant composition 1

12% by weight of pigment was added to an aqueous solution containing 72% by weight of purified water, 12% by weight of viscosity improver, 3.5% by weight of dispersant and 0.5% by weight of defoamer, and preliminarily dispersed in an agitator for 20 to 30 minutes. And dispersed for 1 hour to 2 hours using a sand mill-dispersing machine. At this time, the dispersed particles of the aqueous colorant are suitably 10 microns or less.

1-2. Aqueous colorant composition 2

Except that 80 wt% of pigment was used in an aqueous solution in which 8.6 wt% of purified water, 0.1 wt% of viscosity improver, 11 wt% of dispersant, and 0.3 wt% of defoamer were sequentially added to the aqueous colorant composition .

1-3. Aqueous colorant composition 3

An aqueous colorant composition was prepared in the same manner as in Example 1-1, except that 36 wt% of pigment was used in an aqueous solution obtained by sequentially mixing 51 wt% of purified water, 5 wt% of viscosity improver, 7 wt% of dispersant, and 1 wt% .

Preparation of aqueous colorant composition Item
Constituent Aqueous colorant composition 1 Aqueous colorant composition 2 Aqueous colorant composition 3 Purified water 72.0 8.6 51.0 Viscosity Preparation ¹⁾ 12.0 0.1 5.0 Dispersant ²⁾ 3.5 11.0 7.0 Defoamer ³⁾ 0.5 0.3 1.0 Pigment ⁴⁾ 12.0 80.0 36.0

In Table 1, ADEKANOL UH 420 (ASAHI DENCA), a urethane copolymer, BYK-2090 (BYK-Chemie) of polyalkoxylate was used as the dispersing agent, and BYK-017 ) And titanium oxide (DUPONT) was used as the pigment.

Example 2. Functional evaluation of aqueous colorant composition

The aqueous colorant prepared as in the above example was subjected to the functional evaluation according to the test items of Table 2, and as a result, the aqueous colorant composition 3 of Example 1-3 was the most favorable.

The aqueous colorant composition 1 had a problem in that the pigment content was low and layer separation occurred between the pigments. In the aqueous colorant composition 2, an aqueous colorant was prepared with the aqueous colorant composition 3 because the pigment content was high and viscosity increased during storage.

Functional evaluation of aqueous colorant composition Evaluation items Aqueous colorant composition 1 Aqueous colorant composition 2 Aqueous colorant composition 3 Pigment content (% by weight) 12.0 75.0 36.0 Dispersed particles (softness tester) 10 microns 10 microns 10 microns Shelf life (50 ℃ × 4 weeks) × × ○

 * Evaluation method ○: Good, Δ: Normal, ×: Bad

Example  3. Preparation of Liquid Base Composition

As a result of the tests conducted by the present inventors, it has been found that the desired objects can be achieved by using the water-soluble resins singly or in combination, as described in the claims, The results are summarized in Table 4.

3-1. Liquid base composition 1

The liquid base composition was prepared by mixing 80% by weight of a water-soluble resin, 1.5% by weight of a film forming auxiliary, 0.5% by weight of a surfactant, 5.0% by weight of viscosity aids, 12% by weight of purified water and 1.0% by weight of an antifoaming agent and stirring for 30 minutes to 50 minutes do. At this time, the stirring speed may be 900 to 1600 rpm.

3-2. Liquid base composition 2

Except that 90% by weight of the water-soluble resin, 2.0% by weight of the film forming auxiliary, 0.8% by weight of the surfactant, 2.5% by weight of the viscosity adjusting agent, 4.2% by weight of purified water and 0.5% by weight of the defoaming agent were used. Base composition was prepared.

3-3. Liquid base composition 3

Was prepared in the same manner as in Example 3-1, except that 80% by weight of the water-soluble resin, 1.5% by weight of the film forming auxiliary, 0.5% by weight of the surfactant, 2.0% by weight of the viscosity adjusting agent, 15% Base composition was prepared.

3-4. Liquid base composition 4

Except that 80% by weight of a water-soluble resin, 5.5% by weight of a film forming auxiliary, 0.5% by weight of a surfactant, 2.0% by weight of a viscosity adjusting agent, 11.5% by weight of purified water and 0.5% by weight of an antifoaming agent were used. Base composition was prepared.

3-5. Liquid base composition 5

Except for using 80% by weight of a water-soluble resin, 3.7% by weight of a film forming auxiliary, 0.5% by weight of a surfactant, 2.5% by weight of a viscosity adjusting agent, 12.5% by weight of purified water and 0.8% by weight of a defoaming agent, Base composition was prepared.

3-6. Liquid base composition 6

The procedure of Example 3-1 was repeated except that 91.5% by weight of water-soluble resin, 2.0% by weight of film forming auxiliary, 0.5% by weight of surfactant, 2.0% by weight of viscosity auxiliary, 3.5% by weight of purified water and 0.5% Base composition was prepared.

Preparation of liquid phase base composition          Item
Constituent Liquid base
Composition 1 Liquid base
Composition 2 Liquid base
Composition 3 Liquid base
Composition 4 Liquid base
Composition 5 Liquid base
Composition 6 Resin 1 ^One) 80.0 - - - - - Resin 2 ²⁾ - 90.0 - - - - Resin 3 ³⁾ - - 80.0 - - - Resin 4 ⁴⁾ - - - 80.0 - - Resin 5 ⁵⁾ - - - - 80.0 - Resin 6 ⁶⁾ - - - - - 91.5 Purified water 12.0 4.2 15.0 11.5 12.5 3.5 Provision of tabernacle ⁵⁾ 1.5 2.0 1.5 5.5 3.7 2.0 Surfactants ⁶⁾ 0.5 0.8 0.5 0.5 0.5 0.5 Viscosity preparation ⁷⁾ 5.0 2.5 2.5 2.0 2.5 2.0 Defoamer ⁸⁾ 1.0 0.5 0.5 0.5 0.8 0.5

In Table 3, the resin 1 was an aqueous dispersion acrylic alkyd resin (DSM) having a solid content of 45 wt%, the resin 2 was an aqueous dispersion urethane resin (LUBRIZOL) having a solid content of 36 wt%, and the resin 3 had a solid content of 45 Dispersed acrylic resin (BASF) having a glass transition temperature of 10 deg. C and a glass transition temperature of 10 deg. C was used. Resin 4 was an aqueous dispersion acrylic resin (BASF) having a solid content of 45 weight% and a glass transition temperature of 70 deg. Dispersed acrylic resin (BASF) having a content of 45% by weight and a glass transition temperature of 38 캜 was used, and as the resin 6, an aqueous acrylic urethane resin (LUBRIZOL) having a solid content of 35% by weight was used. The non-ionic BYK-349 (BYK-Chemie) surfactant was used as the surfactant, and ADEKA NOL UH 420 (ASAHI DENCA) of the urethane copolymer was used as the viscosity improver. And BYK-028 (BYK-Chemie) of polysiloxane was used as the antifoaming agent.

Example  4. Functional evaluation of liquid base composition

The liquid base prepared as in the above example was subjected to the functional evaluation according to the test items in Table 4, and as a result, the liquid base composition 5 and the liquid base composition 6 were found to be better than the results from the liquid base composition 1 to the liquid base composition 4 .

The liquid base composition 1 is slow in drying, the liquid base composition 2 is low in gloss and poor in storage stability, the liquid base composition 3 is sticky even after being completely dried, and the liquid base composition 4 is poor in adhesion at low temperatures.

However, since the liquid base composition 5 and the liquid base composition 6 have good overall functional evaluation results, a liquid base composition was prepared in Examples 3-5 and 3-6.

Evaluation of the function of the liquid base composition Evaluation items Liquid base
Composition 1 Liquid base
Composition 2 Liquid base
Composition 3 Liquid base
Composition 4 Liquid base
Composition 5 Liquid base
Composition 6 Drying (touching) × △ ○ ○ ○ ○ (60 °,%) 82 75 82 85 83 82 Adhesion (25 ° C) △ ○ ○ ○ ○ ○ Adhesion (5 캜) △ ○ ○ × ○ ○ Non-tacky (35 ° C) ○ ○ × ○ ○ ○ Shelf life (50 ℃ × 4 weeks) ○ × ○ ○ ○ ○

* Evaluation method ○: Good, Δ: Normal, ×: Bad

Example 5. Preparation of aqueous enamel composition for nail

5-1. Aqueous enamel composition 1

5% by weight of the aqueous colorant prepared in Example 1-3 was mixed with 100% by weight of the liquid base composition 5 prepared in Example 3-5 and stirred with a stirrer for 30 minutes to 50 minutes to prepare a water-based enamel composition for a nail Respectively. At this time, the stirring speed may be 900 to 1600 rpm.

5-2. Aqueous enamel composition 2

Except that 5% by weight of the aqueous colorant prepared in Example 1-3 was used in 100% by weight of the liquid base composition 6 prepared in Example 3-6, and the aqueous enamel for a nail A composition was prepared.

5-3. Aqueous enamel composition 3

Except that 15% by weight of the aqueous colorant prepared in Example 1-3 was used in 100% by weight of the liquid base composition 5 prepared in Example 3-5, the aqueous enamel for a nail A composition was prepared.

5-4. Aqueous enamel composition 4

Except that 15% by weight of the aqueous colorant prepared in Example 1-3 was used in 100% by weight of the liquid base composition 6 prepared in Example 3-6, and the aqueous enamel for a nail A composition was prepared.

Comparative Example 1. Preparation of oily nail enamel composition for nail

15 wt% of ethyl acetate, 10 wt% of butyl acetate, 24 wt% of nitrocellulose, 8 wt% of tosylamide-formaldehyde resin, 5 wt% of isopropyl alcohol, 30 wt% of ethanol, 3 wt% of camphor, Were mixed to prepare a planetary enamel composition for a nail.

Experimental Example 1. Performance evaluation of oil-based enamel and aqueous enamel for nail

The enamel composition for nails prepared by the above examples and comparative examples was applied to each substrate, and the functional evaluation was carried out at room temperature in the following manner, and the results are summarized in Table 5 below.

The nail enamel composition for nails prepared in each of the Examples and Comparative Examples was applied to each base material so as to have a dry film thickness of 60 microns and dried at 25 DEG C and 60% relative humidity for 3 days.

1-1. Odor evaluation

During application of the composition to the fingernail, the difference in degree of occurrence of unpleasant and unpleasant smell was evaluated by smell.

1-2. Evaluation of skin irritation

The composition was applied to the fingernail and the differences in the degree of keratinization and skin relaxation were observed and evaluated.

1-3. Dryness evaluation

The composition was applied to the fingernail and the time during which the stickiness was lost when gently touched with a fingertip was evaluated.

1-4. Water resistance evaluation

After the composition was applied to a glass plate and immersed in water at 25 캜 for 1 hour, deterioration (whitening, swelling, peeling) of the coating film was observed and evaluated.

1-5. Evaluation of internal temperature water

The composition was applied to a glass plate and immersed in hot water at 40 DEG C for 1 hour. After removing the specimen and drying for 30 minutes, deterioration (whitening, swelling, peeling) of the coating film was observed and evaluated.

1-6. Removability evaluation

The coating film on which the composition was applied to a glass plate and dried was evaluated for degree of peeling when the coating film was lightly rubbed with a removing liquid (50% by weight of acetone and 50% by weight of ethanol)

Comparative evaluation of aqueous enamel and oily enamel for nails Evaluation items Comparative Example 1 Aqueous enamel
Composition 1 Aqueous enamel
Composition 2 Aqueous enamel
Composition 3 Aqueous enamel
Composition 4 smell × ○ ○ ○ ○ Skin irritation × ○ ○ ○ ○ Drying △ ○ ○ ○ ○ Water temperature ○ ○ ○ ○ ○ Water resistance ○ ○ ○ ○ ○ Removability ○ ○ ○ ○ ○

* Evaluation method ○: Good, Δ: Normal, ×: Bad

As shown in Table 5, the aqueous enamel for a nail of the Example was found to be human and environmentally friendly, and as a result, the performance evaluation of the aqueous enamel composition for a nail was compared with that of a nail oil enamel for a nail, It was evaluated as superior to enamel.

The oil-based enamel for nails has a problem of causing headache and dizziness while inducing enamel in an enclosed space such as a room using an organic solvent as a main solvent, as in the comparative example, and causing irritation upon skin contact. On the other hand, the water-based enamel for nails does not have odor and skin irritation because it uses water as a main solvent, and it has a more moisturizing effect and other physical properties are equivalent to oily enamel for nail.

Although the present invention has been shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Do.

The water-based enamel composition of the present invention uses water-soluble resin in the form of purified water and aqueous dispersion instead of conventional organic solvent and nitrocellulose-based oily enamel for nails having a strong odor and toxicity. Therefore, there is no odor as compared with the conventional enamel and it is not harmful to the human body and the environment. It also improves film formability, water resistance and gloss of the aqueous enamel composition for nails and is not easily peeled off from nails and claws and has the same function and effect as nail varnish enamel. Therefore, the aqueous enamel composition of the present invention can be industrially useful.

Claims (21)

Dispersed acrylic resin having a glass transition temperature (Tg) of 30 to 50 캜, a solid content of 25 to 45% by weight, a film forming auxiliary of 0.5 to 7% by weight, a viscosity adjusting agent of 1 to 5% by weight, 0.1 to 3% by weight of an active agent, and 0.1 to 2% by weight of an antifoaming agent. Dispersed acrylic resin having a glass transition temperature (Tg) of 30 to 50 캜, a solid content of 25 to 45% by weight, a film forming auxiliary of 0.5 to 7% by weight, a viscosity adjusting agent of 1 to 5% by weight, From 0.1 to 20% by weight of an aqueous coloring agent per 100% by weight of a liquid base composition composed of 0.1 to 3% by weight of an active agent and 0.1 to 2% by weight of an antifoaming agent. The aqueous coloring agent according to claim 2, wherein the aqueous colorant comprises 10 to 55% by weight of purified water, 15 to 75% by weight of pigment, 5 to 30% by weight of a dispersant, 0.1 to 10% by weight of viscosity- Aqueous enamel composition. delete delete delete delete delete delete The method according to claim 1 or 2, wherein the film forming aid is at least one selected from the group consisting of ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, ethylene glycol monopropyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether , Diethylene glycol monopropyl ether, diethylene glycol monohexyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monopropyl ether, propylene glycol phenyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monobutyl Ether, dipropylene glycol monopropyl ether, or a mixture of two or more thereof. The aqueous enamel composition according to any one of claims 1 to 3, wherein the viscosity enhancing agent is any one selected from the group consisting of a fibril derivative, a polymer polymer, and an inorganic compound or a mixture of two or more thereof. 4. The aqueous enamel composition according to claim 3, wherein the pigment used in the aqueous colorant is an inorganic pigment, an organic pigment, or a combination thereof. [4] The method of claim 3, wherein the dispersant is selected from the group consisting of sodium salt of an acrylate copolymer, ammonium salt of an acrylate copolymer, alkyl carboxylate alkyl ammonium salt, polycarboxylic alkylammonium salt, high molecular weight block copolymer, modified alkylol ammonium salt, Wherein the aqueous enamel composition is any one selected from the group consisting of an alkylammonium salt, a modified polyacrylate, a fatty acid modified polyethylene, and a fatty acid modified polyester, or a mixture of two or more thereof. delete The aqueous enamel composition according to claim 1 or 2, further comprising any one selected from the group consisting of a fragrance, a wax, and a vitamin. [12] The cellulose derivative according to claim 11, wherein the fibrinogen derivative is any one selected from the group consisting of hydroxymethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, methyl cellulose, and ethoxy cellulose, or a mixture of two or more thereof. Enamel composition. [Claim 13] The water-based enamel of claim 11, wherein the polymer is one selected from the group consisting of an acrylic copolymer, a vinyl acetate copolymer, a urethane copolymer, a urea copolymer, and an alkali soluble emulsion or a mixture of two or more thereof Composition. [Claim 12] The method according to claim 11, wherein the inorganic compound is at least one selected from the group consisting of bentonite, hectorite, montmorillonite, smectite, magnesium silicate, magnesium aluminum silicate, sodium magnesium silicate, and silica or a mixture of two or more thereof. Enamel composition. [Claim 12] The method of claim 12, wherein the inorganic pigment is at least one selected from the group consisting of titanium oxide, zinc oxide, mica titanium, iron oxide, ultramarine, tungsten, aluminum, mica, talc and kaolin or a mixture of two or more thereof Aqueous enamel composition. The aqueous enamel composition according to claim 12, wherein the organic pigment is at least one selected from the group consisting of Pharmantone Red, Phthalocyanine Blue, and mixtures thereof. Preparing a liquid base comprising a water-dispersed acrylic resin having a glass transition temperature (Tg) of 30 to 50 DEG C, a film-forming auxiliary, a surfactant, a viscosity improver, purified water, and a defoaming agent;
Preparing an aqueous colorant composition comprising purified water, a viscosity enhancing agent, a surfactant, and a defoaming agent to 10 microns or less; And
The method of claim 2, further comprising the step of adding and mixing an aqueous colorant composition to the liquid base.