KR20070117016A - Non-organic natural paint and the manufacturing method thereof - Google Patents

Abstract

A natural inorganic pigment, and a method for preparing the natural inorganic pigment are provided to form the coating having excellent penetration and adhesive strength on a wallpaper and to allow the pigment to be repainted several times. A natural inorganic pigment comprises 15-50 wt% of potassium silicate; 20-60 wt% of colloidal silica; 5-20 wt% of an auxiliary resin; 20-40 wt% of a pigment; 1-15 wt% of a zeolite powder; 0.3-2 wt% of a water repellent; 0.5-2 wt% of a lubricant; and 0.3-3 wt% of other additives. Preferably the potassium silicate contains 15-35 wt% of a solid part and its ratio of silica(SiO2) and potassium oxide(K2O) is 2.5-5.0 by mol; the colloidal silica contains 10-40 wt% of silica and has an average particle size of 5-25 nm and a pH of 8.5-10.5.

Description

Natural inorganic paint and its manufacturing method {NON-ORGANIC NATURAL PAINT AND THE MANUFACTURING METHOD THEREOF}

The present invention relates to a natural inorganic paint and a method for manufacturing the same, and more particularly to a natural inorganic paint that can improve the indoor environment by adding a functional inorganic silicate having porous microparticles to the paint applied on the indoor and outdoor wallpaper and It relates to a manufacturing method.

The wallpaper is largely classified by material and divided into paper wallpaper, textile wallpaper, inorganic wallpaper, silk wallpaper (vinyl wallpaper), and wood based wallpaper. Vinyl chloride is applied to white paper (imitation paper) in a sol state. After foaming in a heat chamber, the three-dimensional pattern is pressed to make a silk wallpaper utilizing various designs and expressions.

Such silk wallpaper has the advantage of easily removing graffiti or contaminants, but has a disadvantage that the wallpaper is heavy and has high manufacturing cost. In addition, solvent-type adhesive should be used because it does not absorb moisture. Synthetic resin printing ink should be used to express beautiful design and color. Therefore, skin disease, headache, dizziness, concentration due to volatile organic compounds, aldehyde, ammonia, etc. It can cause SBS (Sick Building Syndrome), such as decay.

In order to improve this, natural wall paper is mixed by mixing natural non-toxic mineral and non-toxic pigment into natural wall paper, and volatile organic compounds (VOCs), formaldehyde (HCHO), heavy metal harmful substances, etc. Techniques for minimizing the divergence from the invention have been disclosed, but due to the high cost, limited materials, difficulty in mass production, and complexity of the manufacturing process, practical accessibility is insignificant.

Meanwhile, modern people spend most of their time in buildings, so keeping indoor air quality clean is an important social issue. In particular, the building is air-tight for energy saving and thermal insulation, and the ventilation is inferior due to the use of vinyl wallpaper, which is released from heat, carbon dioxide, MDF plywood furniture, interior finishing materials, etc. Not only dust and harmful components are not able to escape to the outdoors, but also moisture and mold bacteria are breeding indoors, threatening the health of indoor residents.

In order to solve the above problems, physicochemical methods such as adsorption by photocatalyst and dissociation of chemicals have been proposed. In the case of bleach disinfectants most commonly used for sterilization and disinfection, chlorine itself has harmful components. Toxin gas of HCl).

In addition, spraying fragrances and artificial fragrance is only to reduce the concentration by diluting the smell of odor and fragrance, it does not fundamentally remove the harmful substances, causing long-term inhalation headache and discomfort.

On the other hand, VOCs-reducing wallpaper-based water-based paints are used for wallpaper-based paints to have antimicrobial and far-infrared emission effects such as nanoscale silver and copper in fluorine resin, acrylic, and urethane emulsions alone or in emulsions. It is likely to be flammable and may cause flammable gaseous flammability during pyrolysis.

Due to the lack of breathability with cement, there may be problems such as condensation, mold fungi production, and aging of buildings.

In addition, the dry film that is peeled off or applied due to the difference in the shrinkage expansion coefficient of the paint resin and the wallpaper shrinkage due to temperature and humidity is coated on the wallpaper with a thickness of 60-100 μm. Excited space is created due to weak adhesion of the cement wall, and wallpaper can be easily torn off or repainted on the wallpaper paint, and the pores of the base material are made of synthetic resin material to deodorize the odor smell generated indoors. Blocked or hidden, the effect is negligible.

Natural paints extracted from natural resins, dama resins, and potato starch plants have problems of economic efficiency, raw material supply, and paintability.

The present invention is to solve the above-mentioned problems, the coating film surface, the strength and chemical resistance, the weather resistance is improved at the same time excellent water resistance, adhesion, flexibility with a minimum amount of coating film applied to the wallpaper surface, and contains organic compounds and heavy metal harmful substances It is an object to provide a natural non-substrate paint and a method for producing the same.

In addition, by maximizing the porosity of the inorganic compound, it absorbs and chemically decomposes various gases and odors of indoor air to maintain pleasant indoor air quality, and it controls humidity control and condensation generation by using a porous porous substrate. It is an object of the present invention to provide a natural inorganic paint and a method of manufacturing the same.

In addition, it is intended to provide a natural inorganic paint and a method of manufacturing the same to reduce the cost or cost by repainting several times without removing the wallpaper for many years by reducing the load of the wallpaper is reduced to the minimum coating amount. .

The present invention devised to solve the above problems is an inorganic paint containing natural mineral, 15 to 50% by weight of potassium silicate; 20% to 60% by weight of colloidal silica; 5 wt% to 20 wt% of auxiliary resin; 20 wt% to 40 wt% of a pigment; 1 wt% to 15 wt% of powdered zeolite; 0.3 wt% to 2 wt% water repellent; 0.5 wt% to 2 wt% of a solvent; And 0.3 wt% to 3 wt% of other additives.

The other additives are characterized by consisting of a wetting and dispersing agent, an antifoaming agent, a thickener, and a wax.

The potassium silicate is characterized in that the molar ratio of silica (SiO ₂ ) and potassium oxide (K ₂ O) is 2.5 to 5.0, the solid content is 15% to 35% by weight.

The colloidal silica is characterized in that the silica content of 10% by weight to 40% by weight, the average particle size is 5nm to 25nm, pH is 8.5 to 10.5.

The auxiliary resin is an aqueous emulsion butylacryl / styrene copolymer, glass transition temperature (T _g ) of 5 ℃ to 10 ℃, pH of 8 to 11, the average particle size of 0.1 ㎛ to 0.3 ㎛ It is characterized by that.

The solvent is characterized in that propylene glycol.

According to another embodiment of the present invention, a method for preparing an inorganic paint containing natural minerals includes: 15 wt% to 50 wt% of potassium silicate, 20 wt% to 60 wt% of colloidal silica, and 0.2 wt% to a wetting and dispersing agent. A first step of preparing a first mixture by mixing and stirring 1.0% by weight and 0.2% to 1.0% by weight of an antifoaming agent; A second step of preparing a second mixture by mixing and stirring 0.3 wt% to 2.0 wt% of a water repellent agent and 5 wt% to 20 wt% of an auxiliary resin in the first mixture; A third step of preparing a third mixture by mixing and stirring 20 wt% to 40 wt% of the pigment and 1 wt% to 15 wt% of the powder zeolite in the second mixture; 0.1 wt% to 0.5 wt% of emulsion paraffin wax, 0.1 wt% to 2.0 wt% of thickener, 0.2 wt% to 0.5 wt% of antifoaming agent, 0.5 wt% to 2.0 wt% of solvent, and purified water It comprises; a fourth step of preparing a fourth mixture by mixing and stirring.

The second step is characterized in that for stirring for about 1 hour at a speed of 400rpm to 800rpm to prepare the second mixture.

In the third step, the third mixture is prepared by stirring the particle size to 5 μm to 10 μm at a speed of 1000 rpm to 1800 rpm using a Ring Mill Disperser.

The potassium silicate is characterized in that the molar ratio of silica (SiO ₂ ) and potassium oxide (K ₂ O) is 2.5 to 5.0, the solid content is 15% to 35% by weight.

The colloidal silica is characterized in that the silica content of 10% by weight to 40% by weight, the average particle size of 5nm to 25nm, pH of 8.5 to 10.5.

Hereinafter, a natural inorganic paint according to an embodiment of the present invention will be described in more detail.

Natural Mineral Paint

Inorganic wallpaper coating composition configured in the present invention, by modifying the fine particle size in order to secure the low bonding strength of the potassium silicate (Potassium resin) and basic silica sol to have adhesion to the wallpaper, penetration, flexibility of the coating film Therefore, the antimicrobial deodorant and air purification function, which are the characteristics of microporous properties of inorganic compounds, are raised to the maximum to purify polluted indoor air, thereby enabling healthy activities of indoor residents.

The potassium silicate inorganic compound applied to the natural inorganic paints has a molar ratio of 2.5 to 5.0 of silica (SiO ₂ ) and potassium oxide (K ₂ O), and is a silicate of potassium silicate as solid content (silica and potassium oxide in solid form). In the part excluding the volatile solvent substance) is used that the content of 15% by weight to 35% by weight.

If the molar ratio is 2.5 or less, the binding force between molecules is lowered, and the residual amount due to the excessive alkali component may cause water resistance and cloudiness. In addition, if the molar ratio is 5.0 or more, the price is increased, and the water resistance is improved, but the storage stability of aggregation and precipitation phenomenon is poor.

Therefore, it is preferable to maintain the molar ratio in the range of 2.5 to 5.0, and it is possible to obtain a coating composition of a solid coating film having excellent Si-0-Si bonding strength without rapid drying.

The curing mechanism of the curing process has a different mechanism from that of the synthetic resin system. As a result of gelation by adsorption reaction with carbon dioxide (CO ₂ ) in the atmosphere, a dense surface layer is formed.

The chemical formula showing the reaction process with carbon dioxide in the atmosphere is as follows.

n (K ₂ O (SiO ₂ )) + CO ₂ → (n-1) (K ₂ O (SiO ₂ )) + K ₂ CO ₃ + SiO ₂

K ₂ O (SiO ₂ ) _n + CO ₂ → n (SiO ₂ ) + K ₂ CO ₃

Colloidal Silica refers to a state in which amorphous silica (SiO ₂ ) particles are dispersed in a dispersed phase (stabilizer) such as water or ethanol. The colloidal state mostly has a spherical structure, and has hygroscopic and antistatic properties due to the silanol (Si-OH) reactor and moisture adsorption characteristics. Colloidal silica is used in the field of paper or printing paper because of its uniform void and surface area characteristics, improves printability and texture, and has an anti-blocking effect on the surface. In addition, it has good fire resistance and heat resistance, and due to the rust prevention function, it is possible to manufacture a paint having excellent wear resistance, durability, and adhesion when used in combination with an emulsion product.

Silica (SiO ₂ ) content of the colloidal silica is used 10 to 40% by weight, the average particle size of 5nm to 25nm, pH of 8.5 to 10.5, 20 to 60% by weight in the paint composition It is preferable to have.

When the silica content is less than 20% by weight, the porous specific surface area is reduced, the moisture absorption and deodorization performance is lowered, the flexibility and water resistance of the coating film is lowered, and whitening may occur. When more than 60% by weight, workability is worsened, the adhesion may be degraded may cause the film peeling phenomenon.

By mixing colloidal silica with inorganic paints, it has micro-pores of several nanometers (nm) in size, so that the penetration of the wallpaper is improved due to the diversity of particle size and stable composition along with potassium silicate, inorganic pigments and minerals. It can maximize the function of storage stability and air quality purification.

The auxiliary resin is an aqueous emulsion resin, which is an aqueous emulsion butylacryl / styrene copolymer which is designed for compatibility with inorganic compounds and stability, and has a glass transition temperature (T _g ) of 5 ° C to 10 ° C, The pH is 8 to 11 and the average particle size is 0.1㎛ to 0.3㎛, and the minimum film forming temperature (MFFT) is 5 ℃ to 25 ℃ solid content is 45% to 55% by weight desirable.

Auxiliary resins are used to enhance the adhesion of colloidal silica and to increase the flexibility and high modulus of the coating film, and preferably have a content within the range of 5% to 20% by weight of the inorganic coating composition according to the embodiment of the present invention. Do.

The pigment applied to the natural inorganic paint composition of the present invention includes a coloring pigment and a extender pigment based on a white paint, and has a ratio of about 20% by weight to 40% by weight relative to the inorganic paint.

The pigmented pigment may be white titanium dioxide, and the extender pigment may be talc, calcium carbonate, silica, etc., but the pH is 9-20, and the average particle size is about 2㎛ to 6㎛ in consideration of workability and storage stability. It is preferable to apply talc of.

Zeolite, which is a functional mineral, is also called a zeolite, and is a generic name for a mineral in which nanopores having a predetermined size of about 3 to about 10 microns are regularly arranged. As the specific surface area is increased by nanopores, it can be applied to inorganic mixtures to adsorb bacteria, bacteria, organic substances, and malodorous components.

Granites such as quartz, mica, and feldspar, which are spread evenly in Korea, are representative zeolites, and quartz is a neutral oxide crystal, and mica and feldspar are secondary and three-dimensional polyalumino silicates, respectively. admit.

The main components are alumina (A1 ₂ O ₃ ), silica (SiO ₂ ), silver (Ag), zinc (Zn) and the like, and zeolite is used within the range of 1% to 15% by weight of the inorganic paint of the present invention. It is preferable.

In addition, the air distribution is free and prevents the penetration of water by mixing a breathable water repellent agent harmless to 0.3% by weight to 2.0% by weight to improve water resistance and mold resistance and prevent aging.

Also, solvents such as glycerin, ethylene glycol, and propylene glycol can be used to prevent freezing and control film drying.However, in the case of ethylene glycol, which is frequently used in latex paints, nausea, vomiting, Since the substance has been determined to be toxic in some countries by causing drowsiness, it is preferable to add 0.5% to 2.0% by weight of non-toxic propylene glycol.

Other additives include wetting and dispersing agents, defoamers, thickeners, waxes, and the like.

The wetting and dispersing agent contains 45% by weight of ammonium salt-based (NH ₄ X) solids as a main component, and preferably accounts for 0.2% to 1.0% by weight of the inorganic paint. Wetting and dispersing agents are used to improve the dispersibility of the pigment, to prevent reaggregation of fine paint particles and to maintain a safe dispersion paint system.

Antifoaming Agents are used to remove harmful bubbles present in inorganic paints. Oily substances or water-soluble surfactants are used, which are less volatile and highly diffusive. The inorganic paint of the present invention includes an antifoaming agent of about 0.2% by weight to 1.0% by weight.

The thickener is added at a ratio of about 0.1% to 2.0% by weight.

The wax added to the inorganic paint of the present invention is an emulsion paraffin wax, which improves flexibility and water resistance by buffering a firm coating film, and preferably uses 0.1 wt% to 0.5 wt%.

It is preferable to add 0.3 wt% to 3.0 wt% of the natural inorganic coating composition in combination with all other additives such as a wetting and dispersing agent, an antifoaming agent, a thickener, and a wax.

Manufacturing method of natural inorganic paint

The natural inorganic coating composition of the present invention is prepared by mixing a colloidal potassium silicate, colloidal silica, auxiliary resin, antibacterial and powder zeolite powder, auxiliary resin, and other additives, and has excellent water resistance, flexibility, storage stability, and paint for wallpaper. It is possible to repeat the painting work several times on top of the paint, which provides semi-permanently breathable indoor air quality purification function.

When describing the method for preparing the inorganic natural wallpaper paint composition in detail, 15% to 50% by weight of potassium silicate, 20% to 60% by weight of colloidal silica, 0.2% to 1.0% by weight of wetting and dispersing agent, 0.2% by weight of antifoaming agent To 1.0% by weight of the mixed mixture to prepare a first mixture.

Then, 0.3% by weight to 2.0% by weight of water repellent and 5% by weight to 20% by weight of the auxiliary resin were added to the first mixture, and stirred at a speed of 400 rpm to 800 rpm for 1 hour to prepare a second mixture.

Subsequently, 20 wt% to 40 wt% of the white pigment and the extender pigment and 1 wt% to 15 wt% of the mineral powder zeolite were mixed with the second mixture using a Ring Mill Disperser to obtain a particle size at a speed of 1000 rpm to 1800 rpm. The third mixture is prepared so that 5 μm to 10 μm.

Next, while stirring the third mixture, 0.1 wt% to 0.5 wt% of emulsion paraffin wax, 0.1 wt% to 2.0 wt% of thickener, 0.2 wt% to 0.5 wt% of antifoaming agent, and 0.5 wt% to 2.0 wt% of solvent (propylene glycol). And purified water are added in this order to prepare a fourth mixture.

It is preferable that such a work process proceeds in order, and if the intermediate mixing order is changed, stability may be impaired and entanglement of particles may occur.

The stirring time is 2 to 4 hours, and after packaging the fourth mixture mixed uniformly after the aging process, the natural inorganic paint of the present invention is completed.

Based on the manufacturing method of the natural inorganic paints described above, the actual product was produced, and various types of product comparisons were made while adjusting the proportions of the components. The composition and comparative test results of each product are as follows.

For reference, the names in parentheses in the component name refer to brand names and manufacturers.

Example 1

16% by weight of potassium silicate (Bentolin P-35, Welner silicate), 24% by weight of colloidal silica, 0.4% by weight of wetting and dispersing agent (Dispers715W, Tego), 0.5% by weight of antifoaming agent (Agitan315, Muzechem), water repellent (He328, Tego) 0.4% by weight, auxiliary resin (Acronal S559, BASF) 8% by weight, white pigment (TiO)₂  R-706, DuPont) 11% by weight, extender pigment talc (TS4000, Wangpyo Chemical) 20% by weight, powder zeolite 5% by weight, aqueous emulsion paraffin wax (SL-145E, Daniel) 0.1% by weight, thickener (Cellosize) Er4400, Union Carbide) 0.4 wt%. 0.6 wt% of propylene glycol (PG, SK Chemicals) and 13.86 wt% of purified water were prepared according to the above preparation method, and a natural inorganic paint having a solid content of 48% and an initial viscosity of 40 KU was prepared.

Example 2

It has the same constituents as in Example 1, but instead of using 16% by weight of potassium silicate and 24% by weight of colloidal silica, 24% by weight of potassium silicate (Bentolin P-35, welner silicate) and 16% by weight of colloidal silica By mixing, a 50% solid content, a natural inorganic paint of the initial viscosity 45KU was prepared.

Example 3

It has the same constituents as in Example 2, but adjusts 8 wt% of the auxiliary resin acrylic emulsion (Acronal S559, BASF) to 12 wt%, and adjusts water from 13.6 wt% to 9.6 wt% to 50% solids content and initial viscosity 48 KU of natural inorganic paints were prepared.

Example 4

It has the same constituents as in Example 1, but adjusts 8% by weight of the auxiliary resin acrylic emulsion (Acronal S559, BASF) to 12% by weight, and adjusts water from 13.6% to 9.6% by weight of solid content 49%, initial viscosity 45 KU of natural inorganic paint was prepared.

Comparative Example 1

By using 20 wt% of calcium carbonate (SHC-700, Sungshin Mineral Field) having an average particle size of 2.0 μm and pH 9.0 instead of 20 wt% of the extender pigment talc (TS4000, Wangpyo Chemical) A natural inorganic paint having a solid content of 48% and an initial viscosity of 50 KU was prepared.

Ingredient Name Example 1 Example 2 Example 3 Example 4 Comparative example Potassium silicate 16 24 24 16 16 Colloidal silica 24 16 16 24 24 Auxiliary resin 8 8 12 12 8 Pigment 31 31 31 31 31 Zeolite 5 5 5 5 5 Water repellent 0.4 0.4 0.4 0.4 0.4 Solvent 0.6 0.6 0.6 0.6 0.6 Wet and Dispersant 0.4 0.4 0.4 0.4 0.4 Antifoam 0.5 0.5 0.5 0.5 0.5 Thickener 0.4 0.4 0.4 0.4 0.4 Wax 0.1 0.1 0.1 0.1 0.1 water 13.6 13.6 9.6 9.6 13.6 Sum 100 100 100 100 100

* Numbers in the table refer to weight percent.

* Pigments of Examples 1 to 4 mean 11% by weight of white pigment and 20% by weight of extender pigment talc.

* Pigment of Comparative Examples means 11% by weight of white pigment and 20% by weight of calcium carbonate.

Experiment result

The natural antimicrobial paints of Examples 1, 2, 3, and 4 and Comparative Example 1 were applied to the gravure wallpaper specimens of the paper wall material. The wallpaper specimen is cut into 50 cm × 50 cm size, coated on a specimen with a roller or a brush so that the dry film thickness is about 30 μm, and dried for 24 hours. The performance of the dried coating film was evaluated according to the test method of KS M 5000, workability, condition of the dry coating film, appearance, hiding power, water resistance, storage stability, and the relative strength of adhesion, flexibility, choking property, coating film strength. The test results are shown in Table 2 below. In case of excellent characteristics, ◎, in good cases, and △ in normal cases are indicated.

Test Items Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Workability ○ ◎ ◎ ◎ ○ State of dry coating ○ ○ ○ ○ △ Exterior ○ ○ ○ ○ △ Hiding power ○ ○ ○ ○ ○ Water resistance ◎ ○ ◎ ◎ ◎ Storage stability ○ ○ ○ ○ △ Adhesion ○ ◎ ◎ ◎ ◎ flexibility ◎ ○ ○ ◎ △ Choking ◎ ◎ ◎ ◎ ○ Coating strength ○ ◎ △ △ ◎

Although the natural inorganic paints according to the embodiments of the present invention have been described above, the scope of the present invention is not limited to these examples, and the scope of the art can be easily modified.

According to the present invention, when the coating is applied on the interior wall of the building, a solid coating film is formed by the penetration force and adhesion of the inorganic compound, and the coating film having the minimum weight can be repainted several times, thereby reducing the cost. The effect can be obtained.

In addition, the existing synthetic resins and inorganic paints are mostly designed for both cement walls and wood, so they can be painted thickly to resist the load of the wallpaper or due to the lifting of the cement walls and wallpaper, cracking, tearing or lack of breathability. Due to the mold, mites, fire hazards caused by this problem has been solved in the present invention.

In particular, it is designed to expand the specific surface area of micropores to maximize the adsorption of natural colloidal silica and functional mineral zeolite, antibacterial, humidity control, and purification of contaminated indoor air quality. It is effective to maintain as much as possible.

In addition, by adjusting the flexibility of the coating film to meet the wallpaper's elasticity according to the change of seasonal temperature, it improves the adhesive force, thereby solving the limitations of the peeling and shrinking of the wallpaper, thereby improving the economic, physical and environmental characteristics of the wallpaper paint. There is an effect that can provide a wallpaper paint.

Claims (11)

In inorganic paints containing natural minerals, 15-50% by weight potassium silicate; 20% to 60% by weight of colloidal silica; 5 wt% to 20 wt% of auxiliary resin; 20 wt% to 40 wt% of a pigment; 1 wt% to 15 wt% of powdered zeolite; 0.3 wt% to 2 wt% water repellent; 0.5 wt% to 2 wt% of a solvent; Natural additives, including 0.3% to 3% by weight of other additives. The method of claim 1, The other additives are A natural inorganic paint comprising a wetting and dispersing agent, an antifoaming agent, a thickener and a wax. The method of claim 1, The potassium silicate is A natural inorganic paint, characterized in that the molar ratio of silica (SiO ₂ ) and potassium oxide (K ₂ O) is 2.5 to 5.0, and the solid content is 15% to 35% by weight. The method of claim 1, The colloidal silica is A natural inorganic paint, characterized in that the silica content of 10% to 40% by weight, the average particle size of 5nm to 25nm, pH of 8.5 to 10.5. The method of claim 1, The auxiliary resin Aqueous emulsion butylacryl / styrene copolymer, characterized in that the glass transition temperature (T _g ) is 5 ℃ to 10 ℃, pH 8 to 11, the average particle size of 0.1 ㎛ to 0.3 ㎛ Natural mineral paints. The method of claim 1, The solvent is a natural inorganic paint, characterized in that propylene glycol. In the method for producing an inorganic paint containing natural minerals, 15 wt% to 50 wt% of potassium silicate, 20 wt% to 60 wt% of colloidal silica, 0.2 wt% to 1.0 wt% of a wetting and dispersing agent, and 0.2 wt% to 1.0 wt% of an antifoaming agent were mixed and stirred to prepare a first mixture. A first step of doing; A second step of preparing a second mixture by mixing and stirring 0.3 wt% to 2.0 wt% of a water repellent agent and 5 wt% to 20 wt% of an auxiliary resin in the first mixture; A third step of preparing a third mixture by mixing and stirring 20 wt% to 40 wt% of the pigment and 1 wt% to 15 wt% of the powder zeolite in the second mixture; 0.1 wt% to 0.5 wt% of emulsion paraffin wax, 0.1 wt% to 2.0 wt% of thickener, 0.2 wt% to 0.5 wt% of antifoaming agent, 0.5 wt% to 2.0 wt% of solvent, and purified water The fourth step of preparing a fourth mixture by mixing and stirring by addition; Natural mineral paint manufacturing method comprising a. The method of claim 7, wherein The second step is a method for producing a natural inorganic paint, characterized in that to prepare the second mixture by stirring for about 1 hour at a speed of 400rpm to 800rpm. The method of claim 7, wherein The third step is a natural inorganic paint production method, characterized in that for producing a third mixture by stirring to a particle size size of 5㎛ to 10㎛ at a speed of 1000rpm to 1800rpm using a Ring Mill Disperser. The method of claim 7, wherein The potassium silicate is A molar ratio of silica (SiO ₂ ) and potassium oxide (K ₂ O) is 2.5 to 5.0, and the solid content of the natural inorganic paint production method, characterized in that 15 to 35% by weight. The method of claim 7, wherein The colloidal silica is Method for producing a natural inorganic paint, characterized in that the silica content of 10% to 40% by weight, the average particle size of 5nm to 25nm, pH is 8.5 to 10.5.