KR102299307B1 - a colored glass and method for manufacturing the same - Google Patents

Abstract

The present invention relates to tinted glass and a method for manufacturing tinted glass, and more particularly to glass; a colored layer coated on one side of the glass; and an anti-glare layer coated on the other side of the glass.
The present invention can provide a colored glass that is excellent in light transmittance and anti-glare properties and can impart various colors by using a light-transmitting pigment.
In addition, the present invention can provide a method for manufacturing colored glass having a wide range of use of the pigment and excellent mass productivity and a simple manufacturing process by using a wet process.
In addition, the present invention can provide a colored glass capable of providing various colors, preventing glare and improving transmittance and visibility.

Description

A colored glass and method for manufacturing the same

The present invention relates to tinted glass and a method for manufacturing tinted glass, and more particularly to glass; a colored layer coated on one side of the glass; and an anti-glare layer coated on the other side of the glass.

When various displays are exposed to external light such as natural light or illumination light, the light incident on the display surface is reflected and contrast is reduced, and visibility is deteriorated by image reflection. In addition, the screen becomes dazzling and it is difficult to recognize text, which can increase eye fatigue or cause headaches.

In order to solve this problem, a mixture of organic/inorganic fine particles and a binder resin or a curable resin is applied to the surface of the display to form irregularities on the surface, thereby preventing light reflection. That is, glare can be prevented by inducing diffuse reflection of light by increasing the haze of the display.

In this regard, Korea Patent No. 10-1137206 discloses a method of manufacturing an anti-glare glass, characterized in that the material is processed into a desired shape and sanded to form irregularities on the surface, and cut to improve transparency. .

However, if the haze of the display is increased, glare of light can be reduced, while the transmittance of light is reduced, so that sharpness and visibility are deteriorated, and power generation efficiency is lowered.

Therefore, it is required to develop a technology capable of preventing glare of a display and improving transmittance and visibility at the same time.

Meanwhile, in order to impart color to a display such as glass, a coating layer using a reflective pigment may be formed on the glass surface, or a multi-layered thin film may be formed by a plasma drying process.

In the case of using reflective pigments, there is a problem that the amount of pigment used is limited and a process to ensure color uniformity must be added. In the case of plasma dry process, color uniformity and stability are excellent, but mass production is difficult and manufacturing cost is high. There is a problem with rising.

In addition, when a color is given to the glass surface, the transmittance of sunlight is reduced, so that visibility is lowered and energy conversion efficiency is reduced.

Therefore, it is required to develop a technology capable of imparting color to glass while preventing glare and improving transmittance and visibility.

Korean Patent No. 10-1137206 Korean Patent Publication No. 10-2013-0021182

The present invention is to solve the problems of the prior art, and it is an object of the present invention to provide a colored glass that is excellent in light transmittance and anti-glare properties and can give various colors by using a light-transmitting pigment.

In addition, an object of the present invention is to provide a method for manufacturing colored glass having a wide range of use of the pigment and excellent mass productivity and a simple manufacturing process by using a wet process.

In addition, an object of the present invention is to provide a colored glass capable of imparting various colors, preventing glare, and improving transmittance and visibility.

In order to achieve the above object, the present invention provides glass; a colored layer coated on one side of the glass; and an anti-glare layer coated on the other side of the glass.

In one embodiment of the present invention, the colored layer is characterized in that it is prepared from a coloring composition comprising polysilazane, a light-transmitting pigment and a solvent.

In one embodiment of the present invention, the coloring composition is characterized in that it contains 1 to 20 parts by weight of polysilazane and 1 to 10 parts by weight of the light-transmitting pigment with respect to 100 parts by weight of the solvent.

In one embodiment of the present invention, the light-transmitting pigment is one or more particles selected from mica, alumina, silica and glass flakes; and a metal oxide layer coated on the particles.

In one embodiment of the present invention, the colored layer is characterized in that it is prepared from a coloring composition comprising a silane oligomer, a light-transmitting pigment and a solvent.

In one embodiment of the present invention, the coloring composition is characterized in that it comprises 1 to 20 parts by weight of the silane oligomer and 1 to 10 parts by weight of the light-transmitting pigment with respect to 100 parts by weight of the solvent.

In one embodiment of the present invention, the anti-glare layer is characterized in that it is prepared from an anti-glare composition comprising polysilazane and a solvent.

The present invention also comprises the steps of (a) washing the glass; (b) polysilazanes or silane oligomers; light-transmitting pigments; and preparing a coloring composition comprising a solvent; (c) preparing an anti-glare composition comprising polysilazane and a solvent; (d) forming a colored layer by coating the coloring composition on one side of the glass; (e) heat-treating the colored layer; (f) forming an anti-glare layer by coating the anti-glare composition on the other side of the glass; and (g) heat-treating the anti-glare layer.

The present invention can provide a colored glass that is excellent in light transmittance and anti-glare properties and can impart various colors by using a light-transmitting pigment.

In addition, the present invention can provide a method for manufacturing colored glass having a wide range of use of the pigment and excellent mass productivity and a simple manufacturing process by using a wet process.

In addition, the present invention can provide a colored glass capable of providing various colors, preventing glare and improving transmittance and visibility.

The present invention will be described in detail with reference to the following examples. The terms, examples, etc. used in the present invention are merely exemplified to explain the present invention in more detail and help those of ordinary skill in the art to understand, and the scope of the present invention should not be construed as being limited thereto.

Technical terms and scientific terms used in the present invention represent meanings commonly understood by those of ordinary skill in the art to which this invention belongs, unless otherwise defined.

The present invention is glass; a colored layer coated on one side of the glass; and an anti-glare layer coated on the other side of the glass.

The colored layer may be prepared from a coloring composition including polysilazane, a light-transmitting pigment, and a solvent.

The coloring composition may include 1 to 20 parts by weight of polysilazane and 1 to 10 parts by weight of a light-transmitting pigment based on 100 parts by weight of the solvent.

The present invention can provide various colors while preventing glare and maintaining excellent light transmittance and visibility by using a light-transmitting pigment.

The polysilazane is a high molecular compound having a -Si-N-Si- bond, and a silica film is formed as the polysilazane is converted into silica through heat treatment.

Compared with other silica precursors, polysilazane can prepare a silica film having superior hardness, durability, and adhesion.

The weight average molecular weight of polysilazane is preferably 2,000 to 300,000 g/mol. If the weight average molecular weight is less than 2,000 g/mol, hardness and durability may decrease, and if it exceeds 300,000 g/mol, processability and coating properties may be rather deteriorated.

The polysilazane is preferably used in an amount of 1 to 20 parts by weight based on 100 parts by weight of the solvent. When the content is less than 1 part by weight, the strength and durability of the film are reduced, and when it exceeds 20 parts by weight, the thickness of the coating film becomes thick and transmittance. This can go down.

The light-transmitting pigment can express a color by reflection of sunlight, prevent glare, and improve transmittance and energy conversion efficiency by transmitting sunlight.

In the present invention, by using a light-transmitting pigment, various colors can be provided while preventing glare and maintaining excellent light transmittance and visibility.

In addition, the light-transmitting pigment has a wide range of use and thus has excellent processability, can be used in a wet process, has excellent mass productivity, and has a simple manufacturing process.

The light-transmitting pigment may include one or more particles selected from mica, alumina, silica and glass flakes; and a metal oxide layer coated on the particles.

The substrate may have a plate-like shape, and the metal oxide layer may be formed by coating a metal oxide on the surface of the particles.

_{Titanium dioxide (TiO 2} ) is used as the metal oxide used at this time. Light-transmitting pigments exhibit unique color and luster as the refractive index of light varies depending on the thickness of the metal oxide coating.

The light-transmitting pigment preferably has a particle size (average particle diameter) of 2 to 100 μm, and when the particle size is less than 2 μm or exceeds 100 μm, processability is poor.

In the present invention, various colors can be expressed by using two types of particles having different particle sizes of the light-transmitting pigment.

The light-transmitting pigment is preferably used in an amount of 1 to 10 parts by weight based on 100 parts by weight of the solvent.

The light-transmitting pigment is a material in the form of white particles, and has a property of expressing a color when coated on a black sheet rather than a white sheet. Light-transmitting pigments are plate-shaped particles, and the plate-shaped surface rises upward and exhibits pearl and color by the refractive index of the titanium dioxide-coated surface.

In addition, the light-transmitting pigment preferably has a density of 2.5 to 4.0 g/cm ³ , and when the density is ^{less than 2.5 g/cm 3} , processability is reduced, and ^{when it exceeds 4.0 g/cm 3} , the transmittance is reduced.

The pH in a 10% aqueous solution of the light-transmitting pigment is preferably 5 to 11, and when the pH is less than 5, the dispersibility is reduced, and when it exceeds 11, the transmittance is reduced.

The oil absorption amount of the light-transmitting pigment is preferably 40 to 85 g/100 g, and when the oil absorption amount is less than 40 g/100 g, the dispersibility is reduced, and when it exceeds 85 g/100 g, the transmittance is reduced.

The solvent controls the viscosity of the composition, and at least one selected from dibutyl ether, mineral spirits, ethyl acetate and xylene may be used.

It is preferable to use dibutyl ether and xylene as solvents in terms of transmittance, hardness and durability of the membrane.

In addition, the coloring composition of the present invention may further include a cosolvent, and the cosolvent improves the coating property of the composition to improve color uniformity and increase processability to improve the transmittance of the film.

Examples of the cosolvent include dibutyl ether, mineral spirits, ethyl acetate, benzene, toluene, xylene, ethylbenzene, chlorobenzene, benzyl acetate, allylhexanoate, butylbutyrate, ethylacetate, ethylbutyrate, methylethylketone, methyl At least one selected from isobutyl ketone, diethyl ether, dimethoxyethane, dimethoxymethane, dioxane, tetrahydrofuran and anisole may be used.

The composition may include 1 to 20 parts by weight of polysilazane, 1 to 10 parts by weight of a light-transmitting pigment, and 70 to 98 parts by weight of a cosolvent based on 100 parts by weight of the solvent.

The cosolvent is preferably used in an amount of 70 to 98 parts by weight based on 100 parts by weight of the solvent, and when the content is less than 70 parts by weight or exceeds 98 parts by weight, workability is very deteriorated.

The coloring composition may additionally use a silane oligomer (Si-oligomer) as a binder.

As the silane precursor, an alkoxysilane such as tetramethoxysilane (TMOS) and tetraethoxysilane (TEOS), sodium silicate, methyl trimecoxysilane (MTMS), etc. may be used without limitation. As a manufacturing method, a silane oligomer having a number average molecular weight of 1,000 to 3,000 g/mol can be prepared through a sol-gel polymerization method.

The silane oligomer is used in an amount of 1 to 20 parts by weight based on 100 parts by weight of the solvent, and when the content satisfies the numerical range, durability and transmittance of the membrane may be improved.

In addition, the colored layer may be prepared from a coloring composition including a silane oligomer, a light-transmitting pigment, and a solvent.

The coloring composition may include 1 to 20 parts by weight of a silane oligomer and 1 to 10 parts by weight of a light-transmitting pigment based on 100 parts by weight of the solvent.

The coloring composition may use a silane oligomer (Si-oligomer) as a binder instead of polysilazane.

As the silane precursor, an alkoxysilane such as tetramethoxysilane (TMOS) and tetraethoxysilane (TEOS), sodium silicate, methyl trimecoxysilane (MTMS), etc. may be used without limitation. As a manufacturing method, a silane oligomer having a number average molecular weight of 1,000 to 3,000 g/mol can be prepared through a sol-gel polymerization method.

The silane oligomer is used in an amount of 1 to 20 parts by weight based on 100 parts by weight of the solvent, and when the content satisfies the numerical range, durability and transmittance of the membrane may be improved.

The solvent may be one or more selected from isopropyl alcohol (IPA), ethanol (EtOH), methanol (MeOH), ethyl acetate (EA) and water.

In addition, the anti-glare layer may be prepared from an anti-glare composition comprising polysilazane and a solvent.

The anti-glare composition may include 1 to 40% by weight of polysilazane and 60 to 99% by weight of a solvent.

The polysilazane is a high molecular compound having a -Si-N-Si- bond, and a silica film is formed as the polysilazane is converted into silica through heat treatment.

The polysilazane preferably has a weight average molecular weight of 2,000 to 30,000 g/mol. When the weight average molecular weight is less than 2,000 g/mol, hardness and durability are lowered, and when it exceeds 30,000 g/mol, workability and coatability may be rather deteriorated.

The polysilazane is preferably used in an amount of 1 to 40% by weight, and when the content is less than 1% by weight, the strength and durability of the film are reduced, and when it exceeds 40% by weight, the anti-glare properties may be deteriorated.

The solvent controls the viscosity of the composition, and aromatic hydrocarbons (benzene, toluene, ethylbenzene, chlorobenzene, o-xylene, m-xylene, p-xylene, styrene, isopropylbenzene, n-propylbenzene, chlorobenzene Toluene, butylbenzene, dichlorobenzene, diisopropylbenzene, nitrotoluene, etc.), aliphatic hydrocarbons (pentane, hexane, octane, nonane, decane, decalin, undecane, dodecane, tridecane, tetradecane, isononane, isodecane) , isoundecane, isododecane, isotridecane, isotetradecane, cyclononane, cyclodecane, cyclodecane, cyclododecane, cyclotridecane, cyclotetradecane, etc.), halogenated hydrocarbons (chloroform, dichloromethane, etc.) , esters (benzyl acetate, allyl hexanoate, butyl butyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl cynanoate, ethyl heptanoate, ethyl nonanoate, ethyl pentanoate, isobutyl acetate, isobutyl Formate, isoamyl acetate, isopropyl acetate, methylphenyl acetate, etc.), ketones (acetone, methyl ethyl ketone, methyl isobutyl ketone, etc.), ethers (diethyl ether, dibutyl ether, dimethoxyethane, dimethoxymethane, dimethoxymethane, etc.) Oxane, tetrahydrofuran, anisol, crown ether, polyethylene glycol, etc.) and alcohols (isopropyl alcohol, n-butanol, isobutanol, secbutanol, norheptanol, n-octanol, n-nonanol, normal decanol, normal tetra) At least one selected from decanol, eicosanol, heptadecaflorodecanol, hexadecafluorononanol, dodecafluoroheptanol, etc.) may be used.

The solvent is preferably used in an amount of 60 to 99% by weight, and when the content is less than 60% by weight, workability is reduced, and when it exceeds 9% by weight, anti-glare properties may be deteriorated.

The present invention also comprises the steps of (a) washing the glass; (b) polysilazanes or silane oligomers; light-transmitting pigments; and preparing a coloring composition comprising a solvent; (c) preparing an anti-glare composition comprising polysilazane and a solvent; (d) forming a colored layer by coating the coloring composition on one side of the glass; (e) heat-treating the colored layer; (f) forming an anti-glare layer by coating the anti-glare composition on the other side of the glass; and (g) heat-treating the anti-glare layer.

The step (a) is a step of removing dust, oil, organic compounds, contaminants, etc., and the glass may be washed by heating the glass to 600 to 700° C. or with demineralized water, alcohol, acidic or basic cleaning solution.

The glass means ordinary glass, and may mean glass including various displays or modules.

The composition of step (b) may include 1 to 20 parts by weight of polysilazane or silane oligomer and 1 to 10 parts by weight of a light-transmitting pigment based on 100 parts by weight of the solvent.

In addition, the composition of step (b) may include 1 to 20 parts by weight of polysilazane or silane oligomer, 1 to 10 parts by weight of a light-transmitting pigment, and 70 to 98 parts by weight of a cosolvent based on 100 parts by weight of the solvent.

The composition of step (c) may include 1 to 40% by weight of polysilazane and 60 to 99% by weight of the solvent.

The step (d) is a step of forming a colored layer by coating the coloring composition on one side of the glass, and a known coating method may be used.

Coating methods include bar coating, meniscus coating, spray coating, roller coating, spin coating and slot die coating. do.

The step (e) is a step of preparing a colored silica film by heat-treating the colored layer, and the heat treatment may be performed at 25 to 800°C.

When the heat treatment temperature satisfies the above numerical range, pores of the prepared film may be uniformly formed, and durability and transmittance may be maximized.

A silica film is prepared from polysilazane or silane oligomer by heat treatment, and the durability of the silica film is improved as a solvent, a cosolvent, a decomposition material, etc. are removed.

In addition, the light-transmitting pigment present in the film can improve visibility and energy conversion efficiency by transmitting sunlight while at the same time expressing a color by reflection of sunlight.

The thickness of the colored silica film may be variously adjusted as needed, and is preferably 1 to 50 μm.

The step (f) is a step of forming an anti-glare layer by coating the anti-glare composition on the other side of the glass, and a known coating method may be used.

The step (g) is a step of heat-treating the anti-glare layer to prepare an anti-glare silica film, and the heat treatment may be performed at 25 to 800°C.

When the heat treatment temperature satisfies the above numerical range, pores of the prepared film may be uniformly formed, and anti-glare properties and transmittance may be maximized.

A silica film is prepared from polysilazane by heat treatment, and the durability of the silica film is improved as a solvent, a cosolvent, a decomposition material, etc. are removed.

The thickness of the anti-glare silica film may be variously adjusted as needed, and is preferably 1 to 50 μm.

The present invention can provide a colored glass capable of providing various colors while preventing glare and maintaining excellent light transmittance and visibility by using a light-transmitting pigment.

It is preferable that the colored glass of this invention has a haze of 1 to 5 %, and that the transmittance|permeability is 85 % or more.

The colored glass does not decrease color uniformity, hardness, durability and transmittance even after long-term use, so it can be stably used for a long period of time in general glass, solar cells, polarizing plates, liquid crystal displays, lenses, and the like.

The present invention also comprises the steps of (a) washing the glass; (b) polysilazanes or silane oligomers; light-transmitting pigments; and preparing a coloring composition comprising a solvent; (c) preparing an anti-glare composition comprising polysilazane and a solvent; (d) forming a colored layer by coating the coloring composition on one side of the glass; (e) forming an anti-glare layer by coating the anti-glare composition on the other side of the glass; and (f) heat-treating the colored layer and the anti-glare layer.

Hereinafter, the present invention will be described in detail through Examples and Comparative Examples. The following examples are only exemplified for the practice of the present invention, and the content of the present invention is not limited by the following examples.

(color uniformity)

The color uniformity was observed in all areas of the tinted glass and marked as excellent, excellent, average and poor.

(Heize)

The haze was measured using a haze meter (HM150).

(transmittance)

The total light transmittance was measured using a Nippon Denshoku transmittance meter (NDH-5000).

(Surface hardness and adhesion)

A 500 g load was applied using a pencil hardness tester, and the pencil hardness of the colored glass prepared in Examples and Comparative Examples was measured.

Pencils manufactured by Mitsubishi were used, and each pencil hardness was applied 5 times.

Adhesion was measured using a Nichiban tape.

(Example 1)

The glass substrate (low iron pattern glass 3.2T) was washed with a cleaner to remove dust, oil, organic compounds, and contaminants present on the substrate.

A coloring composition comprising 20 parts by weight of polysilazane having a weight average molecular weight of 15,000 g/mol, 10 parts by weight of a light-transmitting pigment, and 100 parts by weight of dibutyl ether (solvent) was prepared.

The light-transmitting pigment was titanium dioxide coated on alumina particles, and the titanium dioxide coating content was 55 to 65 parts by weight, and the pigment particle size was 5-35 μm.

An anti-glare composition comprising 10% by weight of polysilazane having a weight average molecular weight of 15,000 g/mol and 90% by weight of dibutyl ether (solvent) was prepared.

A colored layer was formed by spray-coating the coloring composition on the glass substrate.

The colored layer was heat-treated at 170° C. for 10 minutes.

An anti-glare layer was formed by spray-coating the anti-glare on the other side of the glass.

The anti-glare layer was heat-treated at 250° C. for 60 minutes to prepare colored glass.

(Example 2)

The light-transmitting pigment was coated with titanium dioxide on alumina particles, and a colored glass was prepared in the same manner as in Example 1, except that the titanium dioxide coating content was 47-57 parts by weight and the pigment particle size was 5-35 μm. .

(Example 3)

The light-transmitting pigment is titanium dioxide coated on alumina particles, and a colored glass was prepared in the same manner as in Example 1, except that the titanium dioxide coating content was 72-82 parts by weight and the pigment particle size was 5-35 μm. .

(Example 4)

The light-transmitting pigment was coated with titanium dioxide on alumina particles, and a colored glass was prepared in the same manner as in Example 1, except that the titanium dioxide coating content was 62-72 parts by weight and the pigment particle size was 5-35 μm. .

(Example 5)

The light-transmitting pigment was coated with titanium dioxide on alumina particles, and a colored glass was prepared in the same manner as in Example 1, except that the titanium dioxide coating content was 28-38 parts by weight and the pigment particle size was 5-35 μm. .

(Example 6)

The light-transmitting pigment was coated with titanium dioxide on alumina particles, and a colored glass was prepared in the same manner as in Example 1, except that the titanium dioxide coating content was 37-47 parts by weight and the pigment particle size was 5-30 μm. .

(Example 7)

The glass substrate (low iron pattern glass 3.2T) was washed with a cleaner to remove dust, oil, organic compounds, and contaminants present on the substrate.

A silane oligomer having a number average molecular weight of 2,000 g/mol was prepared through polymerization and condensation reactions using tetraethoxysilane (TEOS) as a solvent, water and ethanol as a solvent, and hydrochloric acid as a catalyst.

A coloring composition comprising 20 parts by weight of the silane oligomer, 10 parts by weight of a light-transmitting pigment, and 100 parts by weight of isopropyl alcohol (IPA) (solvent) was prepared.

The light-transmitting pigment was coated with titanium dioxide on alumina, and had a titanium dioxide coating content of 55 to 65 parts by weight and a pigment particle size of 5-35 μm.

An anti-glare composition comprising 10% by weight of polysilazane having a weight average molecular weight of 15,000 g/mol and 90% by weight of dibutyl ether (solvent) was prepared.

A colored layer was formed by spray-coating the coloring composition on the glass substrate.

The colored layer was heat-treated at 170° C. for 10 minutes.

An anti-glare layer was formed by spray-coating the anti-glare on the other side of the glass.

The anti-glare layer was heat-treated at 250° C. for 60 minutes to prepare colored glass.

(Comparative Example 1)

A tinted glass colored dark blue was prepared in the same manner as in Example 1 using a blue organic pigment instead of the light transmitting pigment.

Color clarity, haze, transmittance, and adhesion of the colored glass prepared in Examples and Comparative Examples were measured, and the results are shown in Table 1 below.

division Example comparative example One 2 3 4 5 6 7 One color Blue Gold Green Red Sky white Blue Blue Blue color sharpness eminence eminence eminence Great Great eminence Great commonly haze
(%) 3.2 3.6 3.4 3.9 4.2 4.1 3.8 15.4 transmittance
(%) 90.1 86.3 85.7 88.1 86.9 89.4 88.5 32.5 surface hardness 8H 8H 8H 8H 8H 8H 4H 8H adhesion eminence eminence eminence eminence eminence eminence Great eminence

From the results of Table 1, it can be seen that Examples 1 to 7 are excellent in color clarity, haze, transmittance, surface hardness, and adhesion.

On the other hand, it can be seen that the comparative example is inferior to the example in color clarity, haze, transmittance, surface hardness and adhesion.

Claims (11)

glass;
a colored layer coated on one side of the glass; and
an anti-glare layer coated on the other side of the glass;
The colored layer is formed by coating a coloring composition comprising polysilazane or silane oligomer, a light-transmitting pigment and a solvent and heat treatment,
The light-transmitting pigment is in the form of a particle including a pigment particle and a metal oxide layer coated on the particle surface, and various colors are expressed according to a change in the coating thickness of the metal oxide layer.
delete The method of claim 1,
The coloring composition is colored glass, characterized in that it comprises 1 to 20 parts by weight of polysilazane and 1 to 10 parts by weight of a light-transmitting pigment with respect to 100 parts by weight of the solvent.
The method of claim 1,
The light-transmitting pigment may include one or more particles selected from mica, alumina, silica and glass flakes; and a metal oxide layer coated on the particles.
delete The method of claim 1,
The coloring composition is colored glass, characterized in that it comprises 1 to 20 parts by weight of a silane oligomer and 1 to 10 parts by weight of a light-transmitting pigment with respect to 100 parts by weight of the solvent.
The method of claim 1,
The anti-glare layer is colored glass, characterized in that it is prepared from an anti-glare composition comprising polysilazane and a solvent.
Coating a coloring composition comprising a light-transmitting pigment and a solvent in the form of particles including polysilazane or silane oligomer, pigment particles, and a metal oxide layer coated on the surface of the glass on one side of the glass;
Forming a colored layer by heat-treating the coated glass as a method for producing a colored glass expressing various colors, including:
A method of producing a colored glass to express various colors by changing the coating thickness of the metal oxide layer of the light-transmitting pigment.
9. The method of claim 8,
The coloring composition is a method of producing a colored glass comprising 1 to 20 parts by weight of polysilazane or silane oligomer and 1 to 10 parts by weight of a light-transmitting pigment with respect to 100 parts by weight of the solvent.
9. The method of claim 8,
The heat treatment is to be carried out at 25 ~ 800 ℃, a method for producing a colored glass.
9. The method of claim 8,
After forming the colored layer, coating the anti-glare composition on the other side of the glass and heat-treating to form an anti-glare layer; Method for producing a colored glass further comprising.