KR20010100281A - Antistatic transparent black coating composition, producing method thereof, and coating method of glass surface using thereof - Google Patents

Abstract

The present invention is a coating composition for coating the surface of the CRT (Cathod Ray Tube) glass, in particular polyethylene dioxythiophene aqueous solution, alcohol and amide mixed solvent, alkoxysilane, water-soluble polymer, sulfonic acid monomer dopant, water dispersible carbon black, and An antistatic colored coating composition comprising a water-dispersible colored pigment, a method for manufacturing the same, and a coating method for a glass surface using the same. The coating composition of the present invention is not only excellent in physical properties such as weather resistance, adhesion, hardness, but also CRT glass. When coated on the surface has the advantage of providing a good appearance and at the same time low production cost.

Description

Antistatic coloring coating composition, its manufacturing method and coating method of glass surface using the same {ANTISTATIC TRANSPARENT BLACK COATING COMPOSITION, PRODUCING METHOD THEREOF, AND COATING METHOD OF GLASS SURFACE USING THEREOF}

The present invention relates to an antistatic colored coating composition used for coating CRT (Cathod Ray Tube) glass of a television, a production method thereof, and a coating method of a glass surface using the same, and more particularly, an aqueous solution of polyethylenedioxythiophene, Antistatic colored coating composition comprising alcohol and amide mixed solvent, alkoxysilane, water soluble polymer, sulfonic acid monomer dopant, water dispersible carbon black, and water dispersible color pigment, production method thereof, and coating method of glass surface using the same Related to.

Color television's flat glass tube outer glass is used with antistatic coloring coating to improve contrast and prevent electrostatic shock. The coating solution developed for this purpose is mostly used in the form of carbon black dispersed in a transparent conductive solution, and representative examples thereof are coating liquids in which carbon powder is dispersed in an antimontinoxide sol and a silica sol solution. Patent No. 5,681,885) and a conductive coating and a coating liquid in which carbon powder is dispersed in a silazazole solution. However, these coating solutions have a problem that the color is dark black or black brown so that the appearance color characteristics are not excellent and do not give a luxury feeling.

Accordingly, an object of the present invention is to provide an antistatic colored coating composition having improved color characteristics by solving the above problems of the coating solution for CRT.

Still another object of the present invention is to provide a method for preparing the antistatic colored coating composition and a method for coating a glass surface using the same.

One aspect of the invention is an antistatic colored coating comprising an aqueous polyethylenedioxythiophene solution, an alcohol and amide mixed solvent, an alkoxysilane, a water soluble polymer, a sulfonic acid monomer dopant, a water dispersible carbon black, and a water dispersible colored pigment. It is to provide a composition.

Another aspect of the present invention relates to a method for preparing the antistatic coloring coating composition, comprising the steps of: (a) adding a polyethylenedioxythiophene aqueous solution to a reactor to start stirring; (b) adding alcohol and an amide mixed solvent, an alkoxysilane, a sulfonic acid monomer dopant, and a water-soluble polymer sequentially and then stirring for 6 hours or more while continuing stirring; (c) adding water-dispersible carbon black and water-dispersible colored pigments and then stirring for 2 hours or more.

Another aspect of the present invention is characterized in that the glass composition is coated with a spin method over 80 to 150 seconds at a speed of 80 to 150 rpm on the glass surface, and then heat-fired at 150 to 200 ° C. for 30 minutes to 1 hour. It relates to a coating method of the glass surface.

Hereinafter, the present invention will be described in more detail.

Preferred antistatic coloring coating composition of the present invention

Aqueous polyethylenedioxythiophene having a solid content concentration of 0.6 to 3.0% by weight;

6 to 26 wt%

Alcohol and amide mixed solvents; 64 to 90 wt%

Alkoxysilanes; 3 to 10 wt%

Water-soluble polymers; 0.005 to 0.1 wt%

Sulfonic acid monomer dopants; 0.005 to 0.05 wt%

Water dispersible carbon black; 0.1 to 0.3 wt% and

Water-dispersible colored pigments; 0.05 to 0.40 wt%

It is comprised, including.

Polyethylenedioxythiophene aqueous solution is used as a conductive high molecular compound in the antistatic coloring coating composition of this invention.

As a conductive polymer compound, polyaniline, polypyrrol, polythiophene, and the like are widely used. These polymer compounds have been attracting attention as synthetic metals for a long time due to their easy polymerization and excellent electrical conductivity, and have been proposed to be applied to various conductive materials such as electromagnetic wave materials, secondary battery electrodes, and transparent electrodes. However, since they are difficult to process and are extremely inferior in safety against heat, air, and ultraviolet light, only a few have actually been commercialized.

In order to solve the above problems of the existing conductive polymers, a polythiophene-based polyethylenedioxythiophene as described in US Pat. Nos. 5,035,926 and 5,391,472 has recently been noted. Polyethylenedioxythiophene has excellent solubility, excellent air, heat, and UV resistance stability compared to polyaniline-based, polypyrrole-based, and polythiophene-based conductive polymers. It can also be applied to the formation of the conductive coating film of the exposed area. In addition, since polyethylenedioxythiophene is doped with a high molecular acid (polystyrene sulfonic acid), it can be produced in an aqueous solution. Since this high aqueous polymer solution is easily mixed with an alcohol solvent, it exhibits excellent solvent processing characteristics which are rare for a conductive polymer.

Polyethylenedioxythiophene can be used as a conductive coating such as electromagnetic shielding materials, antistatic agents applied to substrates such as CRT glass surface, transparent plastic surface (panel, film).

The amount of the polyethylenedioxythiophene aqueous solution (solid content of 0.6 to 3.0% by weight) in the antistatic coloring coating composition of the present invention is preferably 6 to 26% by weight. More preferably, an aqueous polyethylenedioxythiophene solution having a solid content of 1.2 to 1.5% by weight is used. Polyethylene dioxythiophene is less than 6 wt% of thiophene solution a surface resistance of ¹⁰ 10 Ω / □ and at least greater than the commercial level of ^{10 8} ~ 10 10 Ω / target value of the □ to mothamyeo antistatic properties sufficient, the amount is 26% by weight In the case of maximizing the surface resistance is 10 ⁸ Ω / □ excellent antistatic properties, but the viscosity of the composition is high, there is a problem that can not produce a uniform coating film.

The composition of the present invention uses an alcohol and an amide mixed solvent to improve the conductivity of the coating film, and to maintain excellent dispersibility and film uniformity. By mixing the two solvents, the conductivity of the coating film is improved, so that the antistatic property is improved, and the dispersibility of the carbon black is also improved, thereby preventing appearance defects due to comb teeth on the coating film.

As the alcohol solvent, one or more selected from the group consisting of methanol, ethanol, propanol and isopropanol may be used.

As the amide solvent, formamide, N-methylformamide, N, N-dimethylformamide, acetamide, N-methylacetamide, N, N-dimethylacetamide, N-methylpropionamide, N-methylpyrrolidone One or more selected from the group consisting of can be used.

The amount of the alcohol and amide mixed solvent is suitably 64 to 90% by weight. Specifically, the mixing ratio of the solvent is preferably 94 to 99% by weight of the alcohol solvent, 1 to 6% by weight of the amide solvent, and more preferably 50% by weight or more of the methanol content of the mixed solvent.

In the composition of the present invention, a water-soluble polymer is used as a dispersant to help disperse polyethylenedioxythiophene. Polyethylenedioxythiophene is dispersed in the conductive polymer itself by doping with polystyrene sulfonic acid (-SO ₃ H, -SO ₃ ^- Na), which serves as a dispersant, but the amount of the polyethylene dioxythiophene aqueous solution is less than 10% by weight In this case, since the dispersibility and adhesion to the surface of the substrate is not sufficient, a water-soluble or alcohol-soluble polymer is used as a dispersant and a resin binder.

The water-soluble polymer used as a dispersant in the composition of the present invention is polymethacrylic acid, polyacrylic acid, polyvinyl alcohol, polyvinyl butyral, methyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, polyvinyl acetate It is one kind to be chosen.

The water-soluble polymer is preferably added in the form of an alcohol solution or an aqueous solution, and the amount of the water-soluble polymer is preferably 0.005 to 0.1% by weight based on solid content. If the solid content is less than 0.005% by weight, the effect of improving the adhesion to the substrate is not sufficient, the dispersibility is inhibited, if the content exceeds 0.1% by weight, the viscosity of the composition is increased to inhibit the formation of a uniform coating film, resulting in poor appearance.

In the composition of the present invention, a sulfonic acid monomer dopant is used as a conduction aid. Polyethylenedioxythiophene uses a sulfonic acid monomer dopant as a conduction aid because the conductivity characteristics of the polyethylene dioxythiophene are significantly reduced by the silica sol as a binder. The sulfonic acid monomer dopant is further doped into the polyethylenedioxythiophene molecule to serve to increase the conductivity of the coating film.

The sulfonic acid monomer dopants include p-toluenesulfonic acid, dodecylbenzenesulfonic acid, 1,5-anthraquinonedisulfonic acid, 2,6-anthraquinonedisulfonic acid, anthraquinonesulfonic acid, 4-hydroxybenzenesulfonic acid, methylsulfonic acid, nitrobenzene One selected from the group consisting of sulfonic acids is used. Among them, the acid form is used as it is, and when present in the form of sodium (Na) salt, it is used by replacing with an acid form using an aqueous solution of nitric acid at pH 2.

The sulfonic acid monomer dopant is preferably added in the form of an aqueous solution in terms of dispersibility. The amount of addition is preferably 0.005 to 0.05% by weight based on solid content. If the solid content is less than 0.005% by weight does not exhibit the desired conductivity synergistic effect in the present invention, if it is more than 0.05% by weight dispersibility becomes bad, rather it lowers the conductivity is not preferred.

In the composition of the present invention, the alkoxysilane is used to increase the adhesion to the CRT glass and to give the hardness of the coating film when the composition is coated. Such alkoxysilanes are selected from the group consisting of tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane and methyltriethoxysilane, and water contained in aqueous polyethylenedioxythiophene solution during the manufacturing process. Or react with the additionally added water to form a silica sol (-SiO ₂ -SiO _2- ) and an alkylsilica sol (R-SiO ₂ -SiO _2- ) through a hydrolysis reaction and a condensation reaction. The silica sol forms a polysilicate crystal during thermosetting coating, thereby increasing the adhesion between the coating film and the CRT outer glass and at the same time increasing the film hardness.

In the composition of the present invention, it is preferable to use 3 to 10 wt% of the alkoxysilane. When the amount of the alkoxysilane is less than 3% by weight, the hardness of 5H or more cannot be achieved, and when the amount of the alkoxysilane is more than 10% by weight, the hardness becomes very good, but the amount of polysilicate that adversely affects the conductivity is relatively increased. There is a problem that can not achieve the surface resistance of about 10 ⁸ ~ 10 ¹⁰ Ω / m ² required by.

In the composition of the present invention, water-dispersible carbon black is used as a colorant. In the present invention, the surface-modified water-dispersible carbon covalently bonded with sulfonate and carboxylate is used. In this case, a stable dispersion state is maintained in water or an alcohol solvent without adding organic substances such as surfactants, dispersants or polymers, which are usually used to maintain stable dispersibility of carbon. When the coating film is formed using the carbon black, it is possible to achieve excellent film hardness and high optical density, and also has the advantage that little black color is eluted on the film surface. In addition, the sulfonate and carboxylate present in the carbon powder may also act as a doping agent for polyethylene dioxythiophene, thereby improving the film conductivity, thereby improving the antistatic properties. In addition, due to the stable dispersibility in water or alcohol solvents when using a high content of carbon also brings the effect of preventing the appearance defects due to the comb teeth of the coating film that occurs frequently.

When the water-dispersible carbon black alone is used, since the color characteristics have a blackish brown color, the color does not give a sense of quality, and therefore, it is not suitable where a high quality texture and color such as CRT is desired. In order to overcome this disadvantage, water-dispersible colored pigments are mixed and used. It is preferable to use a water-dispersible colored pigment in the form of beads dispersed in a water-soluble dispersant such as polystyrene sulfonate and a conventional water-soluble surfactant. Since the water-dispersible colored pigment is used to reinforce the color of the water-dispersible carbon black, it is preferable to use the same amount or less than that of the water-dispersible carbon black.

In the present invention, the water dispersible carbon black is preferably 0.1 to 0.3% by weight, and the water dispersible colored pigment is preferably 0.05 to 0.25% by weight. When carbon black and pigment are used below the minimum weight, the minimum permeability of 80% or less desired in the present invention cannot be achieved, and the black color as required by the CRT cannot be obtained. In addition, when the maximum weight is exceeded, the permeability is improved, but the pigment solid content is so high that appearance defects such as precipitation and staining occur, which is not good.

Hereinafter, the manufacturing method of the antistatic coloring coating composition of this invention is demonstrated.

First, the aqueous solution of polyethylene dioxythiophene is added to the reactor to start stirring, and the stirring is continued, and then alcohol and amide mixed solvent, alkoxysilane, sulfonic acid monomer dopant and water-soluble polymer are sequentially added, followed by stirring for 6 hours or more. Prepares an offen and silica sol solution.

Next, water-dispersible carbon black and colored pigments are added to the polyethylene dioxythiophene and silica sol solution produced above, followed by stirring for 2 hours or more to prepare an antistatic colored coating composition of the present invention.

If the order of addition of the constituents in the preparation or the manufacturing method is different, the desired effect may not be sufficiently exhibited in the present invention.

Hereinafter, a method of coating on a glass surface using the antistatic coloring coating composition of the present invention will be described.

The glass surface is first polished with cellum oxide, then washed with ethanol and dried.

Next, the antistatic coloring coating composition of the present invention is coated on the glass surface by a spin method and dried. The coating is preferably carried out over 80 to 150 seconds at a speed of 80 to 150 rpm.

Finally, heat curing is performed at 150 to 200 ° C. for about 30 minutes to 1 hour to form a hard film.

Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the following examples are only for explaining the present invention and are not intended to limit the claims of the present invention.

Examples 1-8 and Comparative Examples 1-8

Aqueous polyethylene dioxythiophene solution was added to a 1 L glass container, followed by vigorous stirring to add alcohol, an amide solvent, an alkoxysilane, a sulfonic acid monomer dopant, and a water-soluble polymer in a mixing ratio as shown in Tables 1 and 2 below. And stirred at room temperature for about 8 hours. Next, the water-dispersible carbon black aqueous solution and the water-dispersible colored pigment aqueous solution were added to the composition, followed by stirring for about 4 hours to complete the coating composition.

Using the composition described above to prepare a specimen in the following manner. The glass was first washed with acid, and the dried glass was preheated to 35 ° C., and then coated on the surface of the glass by spin coating for 120 rpm and 120 seconds. This was baked in 180 degreeC oven for 30 minutes, and the test piece was produced.

Polyethylenedioxythiophene (1.3%, aq.) Alcohol and amide mixed solvent Sulfonic acid monomer dopant (1%, aq.) Water soluble polymer Alkoxysilane Water Dispersible Carbon Black (5%, aq.) Dispersible colored pigment (5%, aq.) Example 1 PEDT = 8% MeOH / NMP = 76% / 4% p-TSA = 1% HPC (1%, MeOH) = 1% TEOS = 5% CB200 = 3% GA blue = 1% GA viloet = 1% Example 2 PEDT = 12% MeOH / NMAA = 68% / 3% p-TSA = 2% MC (1%, MeOH) = 3% TEOS = 6% CB200 = 3% GA blue = 2% GA violet = 1% Example 3 PEDT = 12% MeOH / NMAA = 68% / 3% p-TSA = 2% MC (1%, MeOH) = 3% TEOS = 6% CB200 = 3% GA green = 3% Example 4 PEDT = 12% MeOH / NMAA = 68% / 3% p-TSA = 2% MC (1%, MeOH) = 3% TEOS = 6% CB200 = 3% GA violet = 3% Example 5 PEDT = 12% MeOH / NMAA = 68% / 3% p-TSA = 2% MC (1%, MeOH) = 3% TEOS = 6% CB200 = 3% GA blue = 2% GA red = 1% Example 6 PEDT = 18% MeOH / EtOH / NMP = 53% / 10% / 3.5% MSA = 1% MC (1%, MeOH) = 1% TEOS = 8% CB300 = 4% GA blue = 1% GA violet = 0.5% Example 7 PEDT = 22% MeOH / NMP = 55% / 6% MSA = 1% PAA (1%, aq.) = 1% TEOS = 8% CB300 = 4% GA blue = 2% GA violet = 1% Example 8 PEDT = 22% MeOH / IPA / DMF = 55% / 5% / 3% NBSA = 1% HEC (1%, MeOH) = 1% TEOS = 8% CB200 = 2% GA blue = 1% GA violet = 2% Example 9 PEDT = 8% MeOH / NMP = 74% / 3.5% 4-HBSA = 2% PMAA (1%, aq.) = 2% TEOS = 3% CB200 = 5% GA blue = 2% GA violet = 0.5% Example 10 PEDT = 23% MeOH / NMAA = 55% / 6% p-TSA = 0.5% PVB (1%, MeOH) = 0.5% mTEOS = 9% CB200 = 3% GA blue = 1.5% GA violet = 1.5% Example 11 PEDT = 10% MeOH / NMP = 72% / 3% p-TSA = 4% HPC (1%, MeOH) = 3% TEOS = 4% CB200 = 2% GA blue = 1% GA violet = 1%

Polyethylenedioxythiophene (1.3%, aq.) Alcohol and amide mixed solvent Sulfonic acid monomer dopant (1%, aq.) Water soluble polymer Alkoxysilane Water Dispersible Carbon Black (5%, aq.) Dispersible colored pigment (5%, aq.) Comparative Example 1 PEDT = 4% MeOH / NMP = 80% / 2% p-TSA = 4% HPC (1%, MeOH) = 2% TEOS = 4% CB200 = 2% GA blue = 1% GA violet = 1% Comparative Example 2 PEDT = 30% MeOH / EtOH / NMP = 40% / 10% / 6% p-TSA = 1% HPC (1%, MeOH) = 1% TEOS = 8% CB200 = 2% GA blue = 1% GA violet = 1% Comparative Example 3 PEDT = 8% MeOH / NMP = 79% / 2.9% p-TSA = 0.1% HPC (1%, MeOH) = 2% TEOS = 4% CB300 = 2% GA blue = 1% GA violet = 1% Comparative Example 4 PEDT = 8% MeOH / NMP = 67% / 4% p-TSA = 7% HPC (1%, MeOH) = 2% TEOS = 6% CB300 = 4% GA blue = 1% GA violet = 1% Comparative Example 5 PEDT = 10% MeOH / NMP = 76% / 2% p-TSA = 2% HPC (1%, MeOH) = 2% TEOS = 2% CB300 = 4% GA blue = 1% GA violet = 1% Comparative Example 6 PEDT = 12% MeOH / NMP = 58% / 2% p-TSA = 2% HPC (1%, MeOH) = 2% TEOS = 12% CB200 = 4% GA blue = 4% GA violet = 4% Comparative Example 7 PEDT = 22% MeOH / NMP = 65% / 4.5% p-TSA = 1% HPC (1%, MeOH) = 1% TEOS = 6% CB200 = 0.2% GA blue = 0.15% GA violet = 0.15% Comparative Example 8 PEDT = 12% MeOH / NMP = 62% / 3% p-TSA = 3% HPC (1%, MeOH) = 3% TEOS = 5% CB300 = 8% GA blue = 2% GA violet = 2%

PEDT (polyethylenedioxythiophene); Baytron PH 4071 from Bayer

MeOH, EtOH, NMP (N-methylpyrrolidone), DMF (N, N-dimethylformamide), NMAA (N-methylacetamide); Aldrich

p-TSA (p-toluenesulfonic acid), MSA (methylsulfonic acid), NBSA (nitrobenzenesulfonic acid), 4-HBSA (4-hydroxybenzene sulfonic acid); Aldrich

HPC (hydroxypropylcellulose), MC (methylcellulose), PAA (polyacrylic acid), PMAA (polymethacrylic acid), PVB (polyvinylbutyral), HEC (hydroxyethylcellulose); Aldrich

TEOS (tetraethoxysilane), mTEOS (methyltriethoxysilane); Aldrich

CB200 (sulfonate carbon black), CB300 (carboxylate carbon black); Cabot

GA blue, GA violet, GA green; Mikuni Color

Resistance (Ω / □) Permeability (T%) Hardness (H) Film color Film color Example 1 9ｘ10 ⁹ 55 6 Good Black Blue Example 2 6ｘ10 ⁹ 50 6 Good Black Blue Example 3 4ｘ10 ⁹ 52 6 Good Black green Example 4 4ｘ10 ⁹ 48 6 Good dark mauve Example 5 7ｘ10 ⁹ 52 6 Good Black Blue Example 6 6ｘ10 ⁸ 51 7 Good Black Blue Example 7 4ｘ10 ⁸ 42 7 Good Black Blue Example 8 4ｘ10 ⁸ 70 4 Good Black Blue Example 9 4ｘ10 ⁹ 65 4 Good Black Blue Example 10 7ｘ10 ⁸ 68 6 Good Black Blue Example 11 8ｘ10 ⁹ 72 5 Good Black Blue Comparative Example 1 4ｘ10 ¹¹ 65 5 Good Black Blue Comparative Example 2 2ｘ10 ⁸ 45 4 Bad Black Blue Comparative Example 3 2ｘ10 ¹¹ 60 4 Good Black Blue Comparative Example 4 4ｘ10 ¹⁰ 55 5 Bad Black Blue Comparative Example 5 8ｘ10 ⁸ 56 2 Good Black Blue Comparative Example 6 8ｘ10 ¹¹ 35 8 Bad Black Blue Comparative Example 7 4ｘ10 ⁸ 85 6 Good Black Blue Comparative Example 8 2ｘ10 ⁹ 38 5 Bad Black Blue

Surface resistance; Evaluated by Ultrehigh resistance (Advantest)

* Permeability; Evaluated by ASTM D1003 Method

Pencil hardness; Evaluated by ASTM D3502 (pencil hardness tester, toyoseki)

Membrane state and membrane color; Evaluated by visual observation

The antistatic coloring coating composition of the present invention provides a CRT glass with a coating film having physical properties such as weather resistance, adhesion, hardness, and good color characteristics.

Claims (9)

An antistatic colored coating composition comprising an aqueous polyethylenedioxythiophene solution, an alcohol and amide mixed solvent, an alkoxysilane, a water-soluble polymer, a sulfonic acid monomer dopant, a water dispersible carbon black, and a water dispersible colored pigment. The composition of claim 1 wherein the composition is Aqueous polyethylenedioxythiophene having a solid content concentration of 0.6 to 3.0% by weight; 6 to 26 wt% Alcohol and amide mixed solvents; 64 to 90 wt% Alkoxysilanes; 3 to 10 wt% Water-soluble polymers; 0.005 to 0.1 wt% Sulfonic acid monomer dopants; 0.005 to 0.05 wt% Water dispersible carbon black; 0.1 to 0.30% by weight and Water-dispersible colored pigments; 0.05 to 0.25 wt% Antistatic coloring coating composition comprising a. The antistatic coloring coating composition according to claim 2, wherein the concentration of the solid content of the aqueous polyethylenedioxythiophene solution is 1.2 to 1.5% by weight. The antistatic coloring coating composition according to claim 1 or 2, wherein the injected alkoxysilane reacts with water to undergo a hydrolysis and condensation reaction to form a silica sol. The method of claim 2, wherein the alcohol solvent is at least one selected from the group consisting of methanol, ethanol, propanol, isopropanol, the amide solvent is formamide, N-methylformamide, N, N-dimethylform At least one member selected from the group consisting of amide, acetamide, N-methylacetamide, N, N-dimethylacetamide, N-methylpropionamide, and N-methylpyrrolidone, The alkoxysilane is one kind selected from the group consisting of tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, The sulfonic acid monomer dopant is p-toluenesulfonic acid, dodecylbenzenesulfonic acid, 1,5-anthraquinonedisulfonic acid, 2,6-anthraquinonedisulfonic acid, anthraquinonesulfonic acid, 4-hydroxybenzenesulfonic acid, methylsulfonic acid, nitrobenzenesulfonic acid 1 type is selected from the group consisting of The water-soluble polymer is one selected from the group consisting of polymethacrylic acid, polyacrylic acid, polyvinyl alcohol, polyvinyl butyl al, methyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, polyvinylacetate, The water dispersible carbon black is a water dispersible carbon surface-modified with sulfonate or carboxylate, The water-dispersible colored pigment is an antistatic colored coating composition, characterized in that it is prepared using a milling method using a polymer dispersant and a surfactant. The antistatic coloring coating composition according to claim 2, wherein the mixed solvent comprises 94 to 99 wt% of an alcohol solvent and 1 to 6 wt% of an amide solvent. The antistatic coloring coating composition according to claim 6, wherein the content of methanol is 50% by weight or more based on the entire mixed solvent. (a) adding a polyethylenedioxythiophene aqueous solution to the reactor to start stirring; (b) adding alcohol and an amide mixed solvent, an alkoxysilane, a sulfonic acid monomer dopant, and a water-soluble polymer sequentially and then stirring for 6 hours or more while continuing stirring; (c) adding the water-dispersible carbon black and the color pigment again and stirring the mixture for 2 hours or more. The glass surface is coated by using the composition of claim 1 at a speed of 80 to 150 rpm by spin method over 80 to 150 seconds and then thermally baked at 150 to 200 ° C. for 30 minutes to 1 hour. Way.