KR20060114850A - Paint composition - Google Patents

Abstract

Provided is a paint composition which radiates far infrared rays, emits anions and is excellent in contamination resistance, adhesive strength, corrosion resistance and durability. The paint composition comprises an inorganic pasting material; and a water-soluble top coat material. The inorganic pasting material comprises 30-40 wt% of an inorganic resin powder; 10-20 wt% of a ceramic powder selected from the group consisting of zeolite, jade, yellow soil, volcanic ash, glass bead, titanium dioxide nanoparticle, rare earth and their mixture; 5-10 wt% of anatase titanium dioxide; and the balance of silicon oxide. The water-soluble top coat material comprises 20-30 wt% of a silicone acrylic emulsion; 10-20 wt% of a ceramic powder selected from the group consisting of zeolite, jade, yellow soil, volcanic ash, glass bead, titanium dioxide nanoparticle, rare earth and their mixture; 20-30 wt% of calcium carbonate; 5-10 wt% of rutile titanium dioxide; 3-5 wt% of a silicon micropowder; and the balance of water.

Description

Paint composition

The present invention relates to a coating composition, and more particularly to a coating composition comprising an aqueous inorganic coating material capable of far-infrared radiation and anion release and a water-soluble top coating material excellent in fouling resistance.

In general, the acrylic emulsion paint used for construction uses a water-soluble acrylic emulsion resin as a binder resin, and a nonvolatile vehicle and a volatile vehicle prepared by mixing a film forming aid such as a plasticizer, a dispersant, a wetting agent, an antifoaming agent, and a thickener. And it has a composition composed of a pigment, including the inner and outer surfaces of the building is applied to the surface of the object to form a coating film to protect the subject and at the same time to give a color to provide a beautiful appearance.

On the other hand, as an acrylic emulsion-based paint that provides functionality such as far-infrared radiation effect, Korean Patent Application No. 97-33794 discloses ocher and elvanite having properties of excellent far-infrared radiation effect such as water-soluble paint, putty, and bone tile. The water-soluble coating composition which contained a fixed amount in water-soluble paint is proposed.

Electromagnetic waves with strong physical properties and extremely high thermal action are infrared, which are classified into near infrared, mid infrared and far infrared according to the wavelength range. Far infrared rays mainly emitted from, char, loess, etc. belong to the optimal wavelength range (5 to 20㎛) that is well absorbed by the human body.

In general, there are three types of conduction, convection, and radiation that transmit heat energy to an object. Far infrared rays transmit direct, instantaneous radiant energy without intermediate media, and have excellent permeability to warm an object from the inside. It is known that it is possible to activate. In addition, since the frequency of the wavelength is almost the same as the frequency of the molecules constituting the human body, when it penetrates the human body, resonance occurs within the molecule, causing the vibration to become active, and most of the vibrations are converted to heat, and some energy is activated. 'It is known to act as energy. The anticipated effects from far-infrared radiation materials include antimicrobial, anti-fungal, odor-removing, negative ion release, stimulation of blood circulation (increased blood flow), elimination of toxic substances such as heavy metals, UV protection, thermal insulation and electromagnetic shielding. It is known to have a back. Minerals that emit such far infrared rays include ceramics (mavanite), germanium, jade, ocher, charcoal, algae coal, tourmaline (tourmaline), and the like.

In addition, the definition, characteristics and efficacy of the anion are as follows.

The atoms that make up a material generally consist of a positive nucleus and negative electrons, and they generally form one atom or molecule together to be electrically neutral. However, in areas where there are many automobiles and cities are polluted, energy such as electromagnetic waves and exhaust gases are applied to the negative electrons and the electrically neutral atoms or molecules are converted into cations. Negative ions are known to occur in forests, waterfalls, near meadows and parks, or on beaches, especially after typhoons and after snow. The human body is composed of approximately 60 trillion or more cells, and the cause of human disease is the oxidation of cells. Anions are known to function to inhibit the oxidation of cells. Human cells are weakly alkaline, thus increasing the amount of cations in the body, promoting the increase of free radicals, and oxidizing the cells. On the other hand, anions give electrons of the anion itself to the active oxygen, and it is known to actively promote the health maintenance activity by reducing the excessive generation of deadly active oxygen and reducing the oxidation of the cells. Negative ions are known as blood purification, cell activation, resistance increase, autonomic nervous system control, and the like.

The anion-emitting material is a crystal having an electric polarization, and the center of the positive charge and the negative charge of the unit lattice of the crystal are slightly deviated from their original positions so that positive and negative electrodes are formed at both ends of the crystal, and the negative electrode is directed toward the positive electrode. Electrons are generated, and these electrons combine with other atoms to form negative ions, which are released along the electric line of the positive electrode, resulting in a permanent flow of electricity. It is known to be most suitable for activation.

When the above-mentioned anion generating material comes into contact with moisture, it is instantaneously discharged to electrolyze the water molecules (H2O) into hydrogen ions (H +) and hydroxyl ions (OH-), where hydrogen ions are released to the electrons. It is reduced to hydrogen gas (H2) and blown off into the atmosphere, so that water is ionized with alkali. In addition, hydroxyl ions play a role in reducing acidified human body, and it is known to suppress the excitability of sympathetic nerve by increasing the immune function (sterilization function, antibacterial ability), purifying blood, and stimulating autonomic nerve by weakly alkalizing water. have. Natural minerals that generate these anions include natural ores such as magnetite, Uiwang, ganbanite, feldspar and charcoal (celet char, bamboo charcoal, pineal charcoal, fruit charcoal, and charcoal). You may enjoy them.

However, when using ocher and elvan, as described above, there is a problem that it is difficult to apply the paint that requires white color because of the unique color of ocher and elvan.

In addition, Korean Laid-Open Patent Publication No. 2003-5733 has a biotite powder as a main component and includes silica sand, lime, CSA cement, slag, calcium carbonate, frying ash, microsilica, white cement, pigment, and water-soluble acrylic as organic matter. Disclosed is a functional ceramic coating material composition comprising a monomer, melamine, cellulose, and an antifoaming agent.

However, paint compositions that can simultaneously provide functions of far-infrared radiation, anion emission and pollution resistance have not yet been provided.

On the other hand, although the conventional aqueous inorganic mortar or coating material alone has been developed to have anion release and far-infrared radiation functions, it is a flame retardant class 1 with excellent adhesion, weather resistance, rust resistance and various health functions (anion release). , Far-infrared radiation, antibacterial, sterilization, deodorization, nitrogen oxide removal ability). Although the coating material also shows a similar effect in various inventions, it is a water-soluble product having excellent adhesion and rust resistance to various base materials (concrete, iron, non-ferrous metal, wood, etc.), and various health functions (anion release, far-infrared radiation). Antimicrobial, sterilization, deodorization, etc.) and fouling resistance, graffiti prevention function, etc. are not shown simultaneously.

In addition, the coating system may have far-infrared radiation and anion release effects in the case of the existing aqueous inorganic mortar in the concrete structure, but there is a case where a separate top coating material is required for durability, appearance and pollution resistance prevention and increase in durability. There is a disadvantage that the function of the mortar material itself is shielded by the construction using a general aqueous or oily coating material, the water-soluble top coating material lacks durability, stain resistance, weather resistance and the like.

Moreover, in the coating system of steel structures, existing coating methods are not environmentally friendly because oily forms the mainstream, and contain a large amount of harmful components to the human body and also do not provide a healthy function, especially non-ferrous metal structures or non-ferrous metal coating There is a problem due to the blackening problem and contamination of the non-ferrous metals, the existing water-soluble coating material is difficult to paint due to problems such as adhesion, durability, stain resistance, rust resistance.

It is an object of the present invention to provide a coating composition comprising an aqueous inorganic coating material capable of far-infrared radiation and anion release and a water-soluble top coating excellent in fouling resistance.

An object of the present invention as described above, comprising an inorganic coating material and a water-soluble top coating material, the inorganic coating material is 30 to 40% by weight of inorganic powder resin, zeolite, jade, ocher, volcanic ash, hollow glass beads, titanium dioxide ( Nano type), rare earth or 10 to 20% by weight of a ceramic powder selected from the group consisting of two or more of these, titanium dioxide (Anatase Type) 5 to 10% by weight and the balance comprises silicon oxide, the water-soluble phase The ash is 20 to 30% by weight of silicone acrylic emulsion, 10 to 20% by weight of ceramic powder selected from the group consisting of zeolite, jade, ocher, volcanic ash, titanium dioxide (nanotype), rare earth or a mixture of two or more thereof, and 20 to 20% by weight of calcium carbonate. 30 wt%, titanium dioxide (Rutile Type) 5 to 10% by weight, finely divided silicon 3 to 5% by weight and the balance comprises water It is achieved by the coating composition according to claim.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments.

The paint composition according to the present invention comprises an inorganic coating material and a water-soluble top coating material, the inorganic coating material is 30 to 40% by weight of inorganic powder resin, zeolite, jade, ocher, volcanic ash, hollow glass beads, titanium dioxide (nano Type), rare earth or 10 to 20% by weight of a ceramic powder selected from the group consisting of two or more of these, 5 to 10% by weight of titanium dioxide (Anatase Type) and the balance comprises silicon oxide.

The inorganic powder resin is a vinyl acetate resin-based re-emulsified powder resin, which is a stable dispersion when stirred in water, and its properties have the same effect as the original dispersion. Powdered resin dispersed in water forms an irreversible polymer film that is insoluble in water after drying or curing, and combines pigments and fillers to increase adhesion to organic or inorganic bases. Representative effects are as follows.

First, the water-soluble protective colloid of the resin increases the ability of the mortar to retain water and prevents water from evaporating by forming a film. Secondly, it increases the bending strength of the member and prevents cracks caused by cement shrinkage. Third, it acts as a binder during drying or curing, increasing adhesion to organic and inorganic substrates, abrasion resistance and flexibility of the mortar.)

Since the inorganic powder resin constituting the inorganic coating material is a re-emulsifying inorganic material, it does not release harmful organic substances to the outside, and is re-emulsified and cured by water. This inorganic powder resin functions as a base resin of the inorganic coating material according to the present invention to form a stable aqueous coating film. The inorganic powder resin is included in the range of 30 to 40% by weight based on the total weight of the inorganic coating material.

When the inorganic powder resin is contained in less than 30% by weight, there may be a problem of lowering the adhesion strength with the base and cracking during drying of the coating film, lowering the anti-neutralization of the base, on the contrary exceeds 40% by weight Strength of the coating due to the non-uniformity with the aggregate and relatively water is used a lot, there may be a problem such as operational problems, economic problems due to the viscosity decrease.

The water-soluble top material is 20 to 30% by weight silicone acrylic emulsion, 10 to 20% by weight ceramic powder selected from the group consisting of zeolite, jade, ocher, volcanic ash, titanium dioxide, rare earth or a mixture of two or more thereof, calcium carbonate 20 to 30 Weight%, titanium dioxide (RUTILE Type) 5 to 10% by weight, finely divided silicon 3 to 5% by weight, silver colloid 0.2 to 0.5% and the balance comprises water.

As the silicone acrylic emulsion, the functional group of -Si (OR) is formed at the end of the basic acrylic polymer to form a chemically stable siloxane bond by hydrolysis of the polymer through hydrolysis by moisture in the air when the paint is formed while the paint is dried. A high functional silicone acrylic emulsion was used. The chemical bond energy after crosslinking of this emulsion is 443 kJ / mol, which has the strongest binding power after fluorine (484 kJ / mol). The chemical structure of this emulsion is (CH3CH3O2-R) 1- (C4H5O2-R) 2-Si.

The rare earth is composed of 17 mineral elements (La, Ce, Pr, Nd, Sm, Pm, Eu, Gd, Tb, Dy, Ho, Er, etc.) including two elements similar in nature to the lanthanide 15 elements in the chemical element periodic table. , Tm, Yb, Lu, Sc, Y).

Titanium dioxide mixed in the ceramic powder is titanium dioxide of nanoparticles for the photocatalytic effect, and other titanium dioxide means titanium dioxide of general rutile type for improving color and hiding power of paint.

In addition, other additives may include 0.3 wt% antifoaming agent (Agitan P803, Chemicon), 0.1 wt% thickener (Bermocoll M10, Chemicon), 0.3 wt% Fluidizing Agent (Permin SMF30, Chemicon).

The ceramic powder constituting the inorganic coating material is used to increase the far-infrared radiation dose, and the ceramic powder is preferably zeolite, jade, ocher, volcanic ash, hollow glass beads, titanium dioxide, rare earth or a mixture of two or more thereof. Any one selected from the group consisting of may be used, but the present invention is not limited thereto. The ceramic powder is included in the range of 10 to 20% by weight based on the total weight of the inorganic coating material.

When the ceramic powder is included in less than 10% by weight, there may be a problem that the effect of increasing the far-infrared radiation is weak, on the contrary, if it exceeds 20% by weight, the strength decreases and oil absorption due to non-uniformity with the aggregate of the coating film Increasing the viscosity, the higher the viscosity, the more water is used, which is a cause of weakening and cracking of the coating film, and it is relatively expensive. There may be one problem.

Titanium dioxide contained in the ceramic powder constituting the inorganic coating material is preferably titanium dioxide powder formed of nanoparticles. Titanium dioxide (nano type) is a material that exhibits photocatalytic phenomena, and is a kind of photoactive semiconductor that is activated by ultraviolet rays in natural light such as sunlight, especially sunlight, to decompose organic matters. The photocatalytic effect of titanium dioxide is widely known. Type) powders and the like have been known to be commercially available from leading manufacturers at home and abroad. Particularly preferred particle size of the titanium dioxide (nano type) is 7nm (on the other hand, the average particle size of the titanium dioxide of the Anatase Type used other than 0.3㎛).

The titanium dioxide (nano type) is included in the range of 20 to 30% by weight based on the total weight of the ceramic powder. When the ceramic powder is included in less than 5% by weight, there may be a problem that the photocatalytic effect of the titanium dioxide (nano type) as described above is not large, on the contrary, if the ceramic powder exceeds 10% by weight, economic problems and work There may be a problem such as lowering the coating film strength as a lot of phase.

The glass beads are included in the range of 20 to 30% based on the total weight of the ceramic powder. When the ceramic powder is included in less than 5% by weight, there may be a problem that the heat insulating effect of the hollow glass bead as described above is not large, on the contrary, if the ceramic powder exceeds 10% by weight may have a problem of lowering the adhesion of the coating film have.

The silicon oxide constituting the inorganic coating material in the above is used for improving the strength and workability of the coating film. Although the silicon oxide is included as a residual amount in addition to the content of the above components in the inorganic coating material, if the content of the silicon oxide is too small may have a problem that the strength of the coating film is lowered, on the contrary too much to reduce the viscosity There may be a problem of workability problems and deterioration of the adhesion strength of the coating film.

The inorganic coating material may be manufactured using the above ingredients and contents, and the preparation of the inorganic coating material is gradually added inorganic powder resin, ceramic powder, and titanium dioxide (Anatase Type) among the above ingredients to a mixing container for powder. do. At this time, when the excess is injected at a high speed, the specific gravity of the ceramic powder is lower than the specific gravity of water (low specific gravity of materials such as nano titanium dioxide) can be blown around, and slowly added. Thereafter, the silicon oxide and the like are sequentially added and stirred until a homogeneous powder is obtained. The stirring speed is suitably 30 to 300 rpm. What is important during manufacture is that each particle is dispersed uniformly.

The silicone acrylic emulsion constituting the water-soluble top coat as described above functions as a base resin of the water-soluble top coat according to the present invention to form an aqueous stable coating film. The silicone acrylic emulsion is chemically stable by forming a siloxane bond (-Si-O-Si-) through a condensation reaction, has a high strength by crosslinking, and is very chemically stable and is next to a fluorine bond (CF). The alkoxyl group and silyl group exhibit strong adhesion to various base materials by forming strong bonds in a similar interaction with inorganic surface-adsorbed water or hydroxyl group and silane coupling agent. The water-soluble top material according to the present invention is constituted by uniformly dispersing fillers having various functions in the silicone acrylic emulsion having high durability and high weather resistance.

The silicone acrylic emulsion is included in the range of 20 to 30% by weight based on the total weight of the water-soluble coating material. After drying the coating film, the siloxane group bonded to the basic structure of the acrylic emulsion is present in the coating film to compensate for the disadvantages of the acrylic emulsion, such as weather resistance, durability, stain resistance, and rust resistance, so that it can perform an excellent function. When the silicone acrylic emulsion is included in less than 20% by weight, there may be problems such as strength, adhesion, stain resistance, rust resistance, etc., which are general physical properties of the coating film, on the contrary, if it exceeds 30% by weight, expensive raw materials There can be economic problems.

The ceramic powder constituting the water-soluble top material is used to increase the far infrared radiation, such ceramic powder is preferably zeolite, jade, ocher, volcanic ash, titanium dioxide (nano type), rare earth or a mixture of two or more thereof Any one selected from the group consisting of may be used, but the present invention is not limited thereto.

The ceramic powder is included in the range of 10 to 20% by weight based on the total weight of the water-soluble ceramic material. When the ceramic powder is contained in less than 10% by weight, there may be a problem that the effect of increasing the far-infrared radiation is weak, on the contrary, if it exceeds 20% by weight, the coating film strength due to the economic problems and high oil absorption due to expensive raw materials There may be a problem of lowering and deterioration of fouling resistance.

Calcium carbonate constituting the water-soluble top coat is used to express the strength of the coating film. The calcium carbonate is included in the range of 20 to 30% by weight based on the total weight of the water-soluble coating material. When the calcium carbonate is included in less than 20% by weight, there may be a problem of lowering the strength and anti-rusting of the coating film, on the contrary, if it exceeds 30% by weight, lower workability due to lower pollution resistance and higher oil absorption, and thus There may be a problem of deterioration of the strength and adhesion of the coating due to the increase in the amount of water used.

Titanium dioxide (nano type) constituting the water-soluble top material is a material exhibiting a photocatalytic phenomenon, and is a kind of photoactive semiconductor that is activated by ultraviolet rays in natural light such as sunlight, especially sunlight, and decomposes organic matter. Photocatalytic effect is widely known as of the filing date of the present application, titanium dioxide (nano type) powder, etc. can be understood to be known enough to be commercially available from leading manufacturers at home and abroad. Particularly preferred particle size of the titanium dioxide (nano type) is 7nm (on the other hand, the average particle size of the titanium dioxide of the Anatase Type used other than 0.3㎛).

The titanium dioxide (nano type is included in the range of 30 to 40% by weight based on the total weight of the ceramic powder. When the ceramic powder is included in less than 5% by weight, the titanium dioxide (nano type photocatalytic effect as described above) There may be a problem that is not large, on the contrary, if it exceeds 10% by weight, there may be an economic problem and a problem of lowering the coating film strength due to the use of a lot of water for work.

The finely divided silicon constituting the water-soluble top coating material is characterized by less oil absorption than calcium carbonate as a filler to express the strength of the coating film together with calcium carbonate). The finely divided silicon is included in the range of 3 to 5% by weight based on the total weight of the water-soluble ceramic material. When the finely divided silicon is included in less than 3% by weight, there may be a problem of lowering the strength of the coating film, on the contrary, if it exceeds 5% by weight, there may be a problem of lowering the adhesion of the coating film.

In addition, the water-soluble top material may further include silver colloid (antimicrobial, antibacterial, bactericidal effect as silver nano-colloid), dispersant, antifoaming agent, thickener, reaction stabilizer, PH control agent and the like as other additives. Such additives may be the same as or similar to those used in the manufacture of conventional paints and the like.

The water-soluble topcoat may be manufactured using the above ingredients and contents, and the preparation of the water-soluble topcoat may be performed by first adding a certain amount of water, a stabilizer, a thickener, a dispersant, and a PH regulator into a mixed container, and then stirring the ceramic powder. Gradually added, followed by titanium dioxide (Rutile Type), finely divided silicon and calcium carbonate in that order, and stirring until a uniform liquid phase. The stirring speed is suitably 155 to 2,300 rpm. The silicone acrylic emulsion and other additives are first added thereto, followed by gradually adding water, and then uniformly stirring.

In addition, the paint composition according to the present invention is the inorganic coating material as described above, and according to the use, even if the existing coatings such as epoxy resin, acrylic resin, urethane resin, water-based paint to the top coat and middle characteristics It can be kept as it is and can be mixed with other paints.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described, and the following examples are provided to illustrate the present invention and should not be understood as limiting the scope of the present invention.

Example 1

35 kg of inorganic powder resin, 5 kg of ceramic powder, 7 kg of titanium dioxide (Anatase Type), 5 kg of other additives and 40 kg of fine silicon powder, 8 kg of calcium carbonate are mixed, and the inorganic powder resin and The ceramic powder is gradually added first, and then the fine silicon powder, calcium carbonate, titanium dioxide (Anatase Type), and other additives are sequentially added and stirred at a stirring speed of 150 rpm until it becomes a homogeneous powder. A dispersed inorganic coating material was obtained.

Example 2

Mix 25 kg of silicone acrylic emulsion, 15 kg of ceramic powder, 25 kg of calcium carbonate, 7 kg of titanium dioxide (Rutile Type), 4 kg of finely divided silicon, 4 kg of other additives (including 0.3% of silver colloid) and 10 kg of water. Into the container, a certain amount of water, stabilizer, thickener, dispersant, and PH regulator are added first and ceramic powder is gradually added while continuing to stir, followed by titanium dioxide (Rutile Type), finely divided silicon and calcium carbonate, and then a uniform liquid Stir until it is. The stirring speed is suitably 155 to 2,300 rpm. The silicone acrylic emulsion and other additives are first added thereto, followed by gradually adding water, and then uniformly stirring. As a result, the coating composition according to the present invention was prepared by obtaining the above water-soluble top coat.

Experimental Example 1

Table 1 and Table 2 are compared by comparing the physical properties of the conventional general product and the physical properties of the environmentally friendly water-based coating material according to the present invention.

division Example (Eco-friendly waterborne paint) Comparative Example 1 (Prior Product) Remarks Anion Release 606 ION / cc none Far Infrared Radiation 3.72 × 10 ² W / ㎡ none Antimicrobial activity 99.7% decrease / 24 hours none Escherichia coli, Pseudomonas aeruginosa Deodorizing power 92% / 120 minutes none NH ₃ Weathering resistance clear Good 1000 hours, choking Salt Spray Test clear Bad 1000 hours, no rust

division Example Comparative Example 2 (Prior Product) Remarks Anion Release 606 (ION / cc) 100 (ION / cc) or less Chemical resistance clear usually Alkali resistance, acid resistance, immersion for 168 hours Antimicrobial activity 99.7% decrease / 24 hours none Escherichia coli, Pseudomonas aeruginosa Deodorizing power 92% / 120 minutes none NH ₃ Pollution resistance clear none Housing construction standard Salt Spray Test clear Bad 120 hours, cracking, swelling, peeling, rust Weather resistance clear Good 1000 hours, choking Saline resistance clear Bad 720 hours immersion Neutralization resistance 0 mm Bad Swelling, cracking, and discoloration Water resistance clear Good 24 hours immersion, cracking, swelling, falling off, discoloration

As a result of the synthesis of the above embodiments, the inorganic coating material according to the present invention exhibits a maximum wavelength in the wavelength range of 5 to 20㎛, the far-infrared emissivity is very high as about 0.94 can maximize the efficacy by far-infrared radiation, anion emission amount It is also very high and can be usefully used to promote the health of the human body.

In particular, the inorganic coating material prepared according to the present invention protects these adherends from corrosion and the like, while protecting the appearance and protection of concrete, iron and non-ferrous metals, and in particular, can form a coating film that is not easily contaminated by reinforcing pollution resistance of the top coating material. The coating of the paint according to the present invention having such a function has the effect of keeping the surface of a facility such as a building clean at all times.

In addition, when coating the interior and exterior of the building using the paint composition according to the present invention as described above, it provides a function to completely block the toxicity of the concrete structure, to remove formaldehyde, excellent corrosion resistance, flame retardancy, durability , Weather resistance and stain resistance, prevent adhesion of stickers. In addition, it is also used for anticorrosive coating of steel structures, and by coating existing steel structures, it provides excellent rust resistance, flame retardancy (flame retardancy), pollution resistance, durability, etc. to prevent corrosion of steel structures as a base material, Permanently protects the structure from chemical effects.

In particular, when the paint composition of the present invention is used instead of non-ferrous metal coating on steel structures such as road rails, contamination is not easy due to the excellent self-cleaning function of the top coating material, and even after being contaminated, it is easily washed off by rainwater and the existing non-ferrous metal. As it can completely solve the blackening problem and the contamination problem that come from the painting, it can always maintain the beautiful appearance and save the maintenance cost according to the cleaning work.

According to the paint composition according to the present invention as described above, there is an effect of providing a paint composition comprising an aqueous inorganic coating material capable of far-infrared radiation and anion release and a water-soluble top coating material excellent in fouling resistance.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

Claims (4)

Including inorganic paint and water-soluble top coating, The inorganic coating material is a ceramic powder selected from the group consisting of 30 to 40% by weight of inorganic powder resin, zeolite, jade, ocher, volcanic ash, glass beads, titanium dioxide (nanotype), rare earth or a mixture of two or more thereof. Wt%, titanium dioxide (Anatase Type) 5 to 10% by weight and the balance comprises silicon oxide, The water-soluble top material is 20 to 30% by weight of the silicone acrylic emulsion, ceramic powder selected from the group consisting of zeolite, jade, ocher, volcanic ash, titanium dioxide (nanotype), rare earth or a mixture of two or more thereof, 20 to 30% by weight of calcium carbonate, 5 to 10% by weight of titanium dioxide (Rutile Type), 3 to 5% by weight of finely divided silicon, and a coating composition comprising water as a balance. The method of claim 1, The glass composition as the ceramic powder is a hollow glass bead of the hollow form. The method of claim 1, Titanium dioxide (nanotype) constituting the inorganic coating material is a coating composition, characterized in that the titanium dioxide powder of nanoparticles having an average particle diameter of 7nm. The method of claim 1, A coating composition, wherein the silicon oxide is calcined silicon oxide.