KR20120051188A - Menufacturing method of luninescent paint - Google Patents

Abstract

PURPOSE: A manufacturing method of luminescent paint is provided to manufacture luminescent paint by using luminescent material coated by nano-sized titanium oxide, thereby improving axial lighting ability, and light emitting ability, and increasing afterglow time. CONSTITUTION: A manufacturing method of luminescent paint comprises: a step of synthesizing nano-sized titanium oxide-coated powder material by using fluorine, organic solvent, a dispersant, nano-sized titanium oxide and luminescent material powder; a step of putting the powder material, membrane-forming material, white filler and aiding agent into a dispersing vessel, and conducting dispersion; and a step of obtaining luminescent paint through filtering process.

Description

Manufacturing method of luminescent paint {MENUFACTURING METHOD OF LUNINESCENT PAINT}

The present invention relates to a method of manufacturing a light-emitting paint, and more particularly to a method of manufacturing a light-emitting paint that can maintain the afterglow for a long time using an inorganic material.

There are mainly two types of photoluminescent materials and luminescent materials applied to the paint industry, zinc sulfide (ZnS) -based luminescent materials and alkaline earth metal aluminate activated by rare earths. It is a light emitting material.

Typical examples of the phosphorescent material and the luminescent material of the zinc sulfide substrate are zinc sulfide activated by copper and cobalt, and the shape is pale yellow powder. The zinc sulfide-based light-emitting paint is known as a long-afterglow light-emitting paint so far, has been applied to a number of areas.

However, the afterglow of this material lasts only about 1 to 2 hours, not only enough brightness in various applications, but also easily deteriorated after contact with UV or oxygen.

Therefore, zinc sulfide-based light-emitting paints were used by adding radioactive elements such as deuterium and promethium (pm-147) to prolong the afterglow time. However, since the addition of radioactive elements has a problem of causing radioactive contamination of the environment, zinc sulfide-based light-emitting paints are already gradually taken away from the market.

Recently, alkaline earth metal aluminates activated by rare earths, in particular, a kind of light emitting material using alkaline earth metal aluminates as active elements, are used as an active element.

Among them, strontium aluminate (SrO), which is activated by Europium (Eu) and dysprosium (Dy) together, is a representative example of a typical light emitting material, which is a kind of new light emitting material that has begun to develop in a different dimension than before. to be.

The strontium aluminate has a bright initial brightness, afterglow time of 10 hours or more, no radioactivity, strong heat resistance, strong environmental erosion, and good anti-oxidation performance.

However, as the proportion of strontium oxide and aluminum oxide content in alkaline earth aluminate light emitting materials is not the same, the wavelength and afterglow time of fluorescence are not the same.

Therefore, the amount of strontium aluminate (SrO) can be changed by using a mixture of europium (Eu) and dysprosium (Dy) and calcium oxide (CaO), magnesium oxide (MaO), barium oxide (BaO), etc. ), A part or all of them may be replaced or a combination may be used to obtain a light emitting material of alkaline earth metal aluminate activated by rare earth whose initial emission intensity and afterglow time are not the same.

Since the light emitting material of the alkaline earth metal aluminate activated by the rare earth which can be obtained by the above method has advantages incomparable with other light emitting materials, in recent years, the light emitting paint prepared by using the light emitting material has been used in traffic and fire fighting areas. It is widely used and used ^.

On the other hand, long-term afterglow luminescent paint is one of the high-tech functional materials that are rapidly developing internationally, is made of a constant proportion of the luminescent pigments, organic resins or resins, organic solvents or solvents, inorganic pigments, fillers, auxiliary agents.

The long-term afterglow luminous paint thus made absorbs and stores light energy under irradiation of visible light such as sunlight or lighting, and then slowly emits energy absorbed in the dark in the form of visible light, and thus emits light for more than 10 hours. Can last.

At present, light emitting materials having long-term afterglow and photoluminescent properties are being developed in an environmentally friendly direction while improving luminous intensity, afterglow time, and durability.

In particular, nanoparticles have special properties such as surface effect, small size effect, macroscopic quantum tunneling effect, and when they are used in paints, they greatly improve the optical performance, magnetic force performance, electrical performance, and mechanical performance of coating layers. Will be displayed.

As a result, technologies that use nanoparticles in paints can greatly enhance the grades and market competitiveness of products such as automobiles, building materials, machinery, ships, aircrafts, etc. It is true.

The present invention is to solve the problems described above, an object of the present invention is to provide a method of manufacturing a light-emitting paint that can increase the intensity and afterglow time by coating the light emitting material using nanoparticles.

According to a feature of the present invention for achieving the object as described above, the present invention is (a) nano-titanium dioxide coating treatment using a fluorine resin, an organic solvent, a dispersant, nano titanium dioxide (oxide) and the light emitting material powder Synthesizing the powdered material, (b) dispersing the powdered material synthesized in the step (a) and the film forming material, the solvent, the white filler and the auxiliary agent in a dispersion container and (c) the agent (b) When the dispersion is completed in the step includes the step of obtaining a light-emitting paint product through a filtration process.

The step (a) includes (a1) 5.00-20.00 wt% of the fluororesin, 10.00-50.00 wt% of the organic solvent, 0.01-5.00 wt% of the dispersant, 0.20-66.0 wt% of nano titanium dioxide, and 40.00-60.00 wt% of the light emitting material powder. Dispersing the mixture of the mixture at 30 to 60 minutes at an intermediate speed of 500 to 800 revolutions / minute and (a2) drying and grinding the solution dispersed in step (a1) at 60 to 80 ° C. And obtaining a powder material coated with the nano-titanium dioxide, which is one of an anatase type, a rutile type, or a crystal mixed type of the anatase and rutile, and the light emitting material powder is a silicate light emitting material or an aluminate light emitting material. A material or an aluminosilicate emitting material, any one or two or more powders of the organic solvent, the organic solvent is xylene, isobutanol, propylene glycol, propylene glycol Propylene Glycol Methyl ether, Ethylene Glycol Monobutyl Ether, Propylene Glycol Monomethyl Ether Acetate, Butyl Acetate (Butyl Acetate), or a mixture of two or more It is done.

The (b) step (b1) is 25 to 50% by weight of the film forming material, 5 to 50% by weight of the powder material coated with nano titanium dioxide, 0.1 to 30% by weight of the solvent, 0.1 to 50% by weight of the white filler and Mixing 0.1 to 30 wt% of the adjuvant into the dispersion container and (b2) dispersing the mixture mixed in the step (b1) for 30 to 60 minutes at an intermediate speed of 500 to 800 revolutions / minute, The film forming material is any one or a mixture of two or more of fluorine resin, epoxy resin, urethane resin, and acrylic resin, the fluorine resin is a chlorotrifluoro ethylene copolymer or tetrafluoro ethylene copolymer, and the auxiliary agent is a dispersant. , Defoamer, leveling agent (at least one), the solvent is xylene (Xylene), isobutanol (Isobutanol), propylene glycol (Propylene Glycol), propylene glycol methyl ether (Propylene Glyco l Methyl ether, ethylene glycol monobutyl ether (Ethylene Glycol Monobutyl Ether), propylene glycol monomethyl ether acetate (Propylene Glycol Monomethyl Ether Acetate), characterized in that any one or a mixture of two or more (Butyl Acetate).

The step (c) is characterized in that the filter with a mesh of 80 to 150 mesh.

As described above, according to the present invention, as the light emitting material is manufactured using a light emitting material coated with nano titanium dioxide, it is possible to improve the photoluminescence, the light emitting performance of the light emitting material, and to increase the afterglow time.

In particular, the present invention is evenly mixed before use of the prepared light-emitting paint and using a solvent to adjust the viscosity, when forming a film of the light-emitting paint to a thickness of 80㎛ or more, it is possible to form a light-emitting coating layer that can emit light uniformly have.

In addition, the present invention can improve the luminous intensity of the luminous paint, and can improve the luminous ability and luminous ability by about three times as compared to the luminous paint without the luminous material coated with nano titanium dioxide.

In addition, the present invention has an effect that can be easily applied by using a variety of methods using a method such as painting the applied luminescent paint with a brush or spray painting or roller painting.

Hereinafter, a method of manufacturing a light emitting paint according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

According to a preferred embodiment of the present invention, a method of preparing a light-emitting coating material comprising nano-titanium dioxide coating and a method of synthesizing a long-term afterglow powder material together with a film-forming material, a solvent, a white filler and an auxiliary agent It includes the method of manufacturing by dispersing.

First, a method of synthesizing a long-term afterglow powder material treated with nano titanium dioxide coating will be described.

 The long-term afterglow powder material is synthesized using a fluorine resin, an organic solvent, a dispersant, nanotitanium dioxide, and a light emitting material powder.

That is, the nano-titanium dioxide coating powder material is obtained by dispersing the mixture of the above materials mixed for 30 to 60 minutes at a rate of 500 to 800 revolutions / minute, and by drying the dispersed solution at 60 to 80 ℃.

Table 1 is a table showing the raw materials and the weight% to synthesize a long-term afterglow powder material.

Raw material weight% Fluorine Resin 5.00-20.00 Organic solvent 10.00-50.00 Dispersant 0.01 ~ 5.00 Nano Titanium Dioxide 0.20 ~ 6.00 Luminescent Material Powder 40.00 ~ 60.00

The nano titanium dioxide is one of an anatase type, rutile (rutile) type or a crystal mixed type of anatase and rutile.

The light emitting material powder is any one, or a mixture of two or more of silicate light emitting material, aluminate light emitting material, aluminosilicate light emitting material, the average particle diameter is 5 ~ 65㎛, particularly preferably 25 ~ 60㎛.

The fluororesin is a chlorotrifluoro ethylene (CTFE) copolymer or a tetrafluoro ethylene copolymer.

The deflocculationg agent is an anionic surfactant and is a mixture of one or two of sodium hexametaphosphate and sodium dodecyl benzene sulfonate (SDBS).

The organic solvent is xylene, isobutanol, propylene glycol, propylene glycol methyl ether, ethylene glycol monobutyl ether, propylene glycol mono Methyl ether acetate (Propylene Glycol Monomethyl Ether Acetate), butyl acetate (Butyl Acetate) any one or a mixture of two or more.

Next, a method of manufacturing a light-emitting paint using a powder material coated with nano titanium dioxide will be described.

The method of manufacturing a light-emitting coating using a powder material coated with nano titanium dioxide is to disperse a film-forming material, a solvent, a white filler and an auxiliary agent, and a powder material coated with nano titanium dioxide in a dispersing container and to dry the dispersed solution. Pulverizing the dried material to produce a light-emitting paint.

Table 2 is a table showing the raw materials and the weight% to prepare a light-emitting paint.

Raw material weight% Film forming material 25-50 Powder material coated with nano titanium dioxide 5-50 solvent 0.1-30 White filler 0.1-50 Supplements 0.1-30

The film forming material is any one or two or more of a fluorine resin, an epoxy resin, a urethane resin, an acrylic resin, and each resin is used in an amount of 0 to 100% of the total amount of the film forming material.

The solvent is xylene, isobutanol, propylene glycol, propylene glycol methyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl Ether acetate (Propylene Glycol Monomethyl Ether Acetate), butyl acetate (Butyl Acetate) any one or a mixture of two or more. And the amount of each solvent used is 0 to 100% of the total amount of the solvent.

The white filler is any one or two or more of titanium dioxide (Titanium Dioxide), talc powder, calcium carbonate and the amount of each filler is 0 to 100% of the total amount of the white filler.

The adjuvant is at least one of a dispersant, a defoamer, and a leveling agent.

The dispersant may be used by mixing any one or two or more of solvent, titanium dioxide, sodium hexametaphosphate, SDBS, and the amount of each dispersant is 0 to 100% of the total amount of the dispersant.

The antifoaming agent is used by mixing any one or two or more of diisobutylketone, isobutanol, isobutanol, hydrocarbon, and polysiloxane, and the amount of the antifoaming agent is 0 to 100% of the total amount of the antifoaming agent. to be.

The leveling agent is used by mixing any one or two or more of polyacrylate, xylene, solvent, acrylic copolymer (acrylic copolymer) and the amount of each leveling agent is 0 to 100% of the total amount of the leveling agent.

Therefore, the method of manufacturing the light-emitting paint according to the present invention, as shown in Table 2, the coating treatment with the nano-titanium dioxide synthesized according to the above synthesis method with a solvent, a film forming resin, a filler, other auxiliaries by a predetermined proportion The light emitting material was sequentially put into the material mixing tank of the disperser and dispersed for about 30 to 60 minutes at an intermediate speed, for example, about 500 to 800 revolutions per minute.

Subsequently, when the material of the disperser is dispersed, a luminescent paint product may be obtained through filtration.

Hereinafter, a method of manufacturing a light emitting paint according to a preferred embodiment of the present invention will be described in detail.

My Example 1

Table 3 is a table showing the raw material and the mass for manufacturing the light-emitting paint according to the first embodiment of the present invention.

Raw material mass Fluorine Resin 50 g Nano Titanium Dioxide Coated Light Emitting Material 30 g Titanium Dioxide (Filling Pigment) 18g Dispersant 1 g Dispersant 0.3 g Antifoam 0.3 g Judge 0.4g Titanium dioxide 25.5 g Antifoam 0.2 g Judge 0.3 g

First, 200 g of fluorine resin, 250 g of organic solvent, 2 g of hexamethaphosphate, 8 g of nano titanium dioxide, and 540 g of a light emitting material were put into a dispersion container, mixed and dispersed for about 30 minutes at an intermediate speed, for example, about 650 revolutions / minute, thereby coating nano titanium dioxide. A dispersion of the treated luminescent material is made.

Subsequently, the dispersion of the nano-titanium dioxide coated light-emitting material is dried and ground at 60 ° C. to produce the nano-titanium dioxide coated light-emitting material.

As shown in Table 3, solvents, film-forming resins, fillers, other auxiliaries, and nano-titanium dioxide-coated light emitting materials were sequentially added to the disperser material mixing tank according to a preset proportion, and at a medium speed, for example, 650 revolutions per minute. Mix and disperse for about 45 minutes.

When the dispersion is completed, the light-emitting paint is obtained by filtering through a mesh of 80 mesh (mesh).

My 2 Example

Table 4 is a table showing the raw materials and the mass for manufacturing the light-emitting paint according to the second embodiment of the present invention.

Raw material mass Epoxy resin 50 g Coated Luminescent Pigment 30 g Talc Powder (800 #) 10g Xylene 7g Judge 1.4 g Dispersant 1.2 g Antifoam 0.6g

190 g of fluororesin, 200 g of organic solvent, 2 g of hexametaphosphate, 8 g of anatase type titanium dioxide, and 600 g of SB-8C type luminescent pigment were placed in a dispersing container and mixed by dispersing for 20 minutes at medium speed, for example, 800 revolutions per minute, to disperse the nano dioxide A dispersion of the titanium coated light emitting material is made.

Subsequently, the dispersion of the nano-titanium dioxide coated luminescent material is dried and pulverized at 80 ° C. to produce the nano-titanium dioxide coated luminescent material.

As shown in Table 4, solvents, film-forming resins (epoxy resins), fillers, other auxiliaries, and nano-titanium dioxide-coated light-emitting materials are sequentially added to the disperser material mixing tank according to a predetermined composition ratio. Mix and disperse for about 30 minutes at 500 revolutions / minute.

When the dispersion is completed, the luminous paint is obtained by filtration through a 100 mesh filter network.

My 3 Example

Table 5 is a table showing the raw materials and the mass for manufacturing the light emitting material according to the third embodiment of the present invention.

Raw material mass Acrylic resin 42 g solvent 26 g Luminous Powder 30 g Sodium hexametaphosphate (dispersant) 2 g

190 g of fluorine resin, 200 g of organic solvent, 4 g of SDBS, 6 g of anatase type titanium dioxide, and 600 g of luminescent material were placed in a dispersion container, mixed and dispersed for about 40 minutes at a medium speed, such as about 600 revolutions per minute, to emit light coated with titanium dioxide. Make a dispersion of the material.

Subsequently, the dispersion of the nano-titanium dioxide coated luminescent pigment is dried and pulverized at 70 ° C. to produce the nano-titanium dioxide coated luminescent material.

As shown in Table 5, solvents, film-forming resins, fillers, other auxiliaries, and nano-titanium dioxide-coated light emitting materials were sequentially added to the disperser material mixing tank according to a preset proportion, for example, at about 600 revolutions per minute. Mix for about 30 minutes and disperse.

When the dispersion is completed, the luminous paint is obtained by filtration through a 150 mesh filter network.

My 4 Examples

Table 6 is a table showing the raw material and the mass for manufacturing a light-emitting paint according to a fourth embodiment of the present invention.

Raw material mass Urethane Resin 25 g Luminous Powder 25 g Rutile Titanium Dioxide 14 g Heavy calcium carbonate 10g Xylene 24.6 g Wet Dispersant 0.8 g Antifoam 0.2 g Judge 0.4g

First, 190 g of fluorine resin, 200 g of organic solvent, 4 g of hexametha phosphate, 6 g of nano titanium dioxide, and 300 g of a light emitting material were put into a dispersion container, mixed and dispersed for about 40 minutes at a medium speed, for example, about 800 revolutions / minute, to apply nano titanium dioxide coating. A dispersion of the treated luminescent material is made.

Subsequently, the dispersion of the nano-titanium dioxide coated luminescent pigment is dried and pulverized at 65 ° C. to produce the nano-titanium dioxide coated luminescent material.

As shown in Table 6, solvents, film-forming resins, fillers, other auxiliaries, and nano-titanium dioxide-coated light-emitting pigments are sequentially added to the disperser material mixing tank according to a preset proportion, and at an intermediate speed, for example, about 800 revolutions per minute. Mix for about 30 minutes and disperse.

When the dispersion is completed, the luminous paint is obtained by filtering through a 120 mesh filter network.

As described above, in order to prepare the light emitting paints according to the first to fourth embodiments of the present invention, commercial light emitting materials not coated with nano-titanium dioxide are synthesized by the same method as the first to fourth embodiments. A light emitting paint according to the fourth comparative example was prepared and compared with the first to fourth examples by experiment.

My 1 experiment

The luminous paints of the first to fourth embodiments and the first to fourth control examples are evenly coated on five pieces of 50 mm x 50 mm x 1.5 mm glass plates prepainted with white paint, and after 7 days of natural drying, luminous and luminous in a well-closed dark room. The experiment was conducted.

The experimental method measured the photoluminescence and the luminous intensity of the coating layer emitting light with a photometer at a constant time interval at room temperature and in air. The unit is lux.

Table 7 is a proportional value table of the photoluminescence of the light-emitting paints according to the first to fourth embodiments and the first to fourth control examples, and the light emission test results.

excuse Example 1 / Control Example 1 Example 2 / Control Example 2 Example 3 / Control Example 3 Example 4 / Control Example 4 Relative axis, luminous intensity 2.76 1.92 2.46 2.22

My 2 experiment

The luminous paints of the first to fourth embodiments and the first to fourth control examples are evenly coated on five pieces of 50 mm x 50 mm x 1.5 mm glass plates prepainted with white paint, and after 7 days of natural drying, they luminesce and emit light in a well-closed dark room. The experiment was conducted.

In the second experiment, a sample immersed in a 1000 ml beaker containing a solvent from which 200 ml of ions have been removed is placed in a precursor cultivator, and irradiated with light for a predetermined time, and then the lamp is turned off. In addition, photoluminescence and luminous intensity of the coating layer emitting light with a photometer were measured at room temperature and in air at regular time intervals. The unit is Lux.

Table 8 is a proportional value table of the photoluminescence of the light-emitting paints according to the first to fourth embodiments and the first to fourth control examples, and the light emission test results.

excuse Example 1 / Control Example 1 Example 2 / Control Example 2 Example 3 / Control Example 3 Example 4 / Control Example 4 Relative axis, luminous intensity 7.61 5.37 7.28 6.72

My 3 experiment

The light emitting paints of the first to fourth embodiments and the first to fourth control examples were evenly coated on five pieces of 50 mm × 50 mm × 1.5 mm glass plates coated with white paint, and then experimented in a dark room with good sealing after 7 days of natural drying. It was.

In the third experiment, a sample immersed in a 1000 ml beaker containing 400 ml of natural seawater is placed in a precursor cultivator and irradiated with light for a certain time and then the lamp is turned off. In addition, photoluminescence and luminous intensity of the coating layer emitting light with a photometer were measured at regular time intervals, and the unit was Lux.

Table 9 is a proportional value table of the results of photoluminescence and luminous intensity experiments of the luminous paints according to the first to fourth embodiments and the first to fourth control examples.

excuse Example 1 / Control Example 1 Example 2 / Control Example 2 Example 3 / Control Example 3 Example 4 / Control Example 4 Relative axis, luminous intensity 22.66 15.36 20.13 17.05

Table 10 is a relative illuminance proportional value table after radiating light in seawater and air of the first to fourth control examples.

excuse Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Relative axis, luminous intensity 0.61 0.43 0.55 0.47

Table 11 is a table of relative illuminance proportional values after radiation of light in seawater and air of the first to fourth embodiments.

excuse Example 1 Example 2 / Example 3 / Example 4 / Relative axis, luminous intensity 8.16 9.74 7.85 8.49

According to the experimental results as described above, the present invention, the luminous intensity and the luminous intensity measured after receiving the light in a certain depth of water and sea water after applying the luminous paint on the glass plate and the luminous intensity after receiving light in the air It can be seen that photoluminescence and luminous performance were improved in water and seawater to about 8-10 times the luminous intensity.

 As such, the cause of the long-term afterglow property, the photoluminescent performance, and the luminescent performance of the luminescent material prepared by the luminescent material according to the present invention is greatly related to the level of the trap energy of the depth not equal to the level present in the luminescent material. .

In detail, a trap energy level having a constant energy depth during the generation of ultraviolet excitation captures and stores a sufficient amount of electrons in the excited state. At this time, after the ultraviolet excitation is stopped, the electrons stored at the trap energy level are gradually released due to the interference of heat at room temperature. The emitted electrons are transitioned to an excited state, and long-term afterglow emission occurs when the electrons return from the excited state to the ground state.

In particular, nano titanium dioxide belongs to the nanosemiconductor compound particles, and because of its semiconductor property, electrons are excited under ultraviolet irradiation and transition from valence band to conduction band, thus absorbing broadband broadly against ultraviolet rays. Action occurs.

Therefore, when the particle diameter of the nanoparticles is sufficiently small, light of a constant wavelength can emit light in an excited state.

As a result, the electron hole coulombic action of the light emitting material particles coated with nano-titanium dioxide particles modified with fluorine resin and dispersant is enhanced to increase excitation coupling energy, pendulum strength, and dielectric effect to increase light emission. By promoting the transition process of the electrons in the material and nano-titanium dioxide, the long-term afterglow, luminous performance and luminous performance of the luminous paint are greatly improved.

As described above, the luminous paint prepared by the method of manufacturing the luminous paint according to the present invention can be applied to the luminous paint by painting with a brush, and can be constructed using a method such as spray painting or roller painting.

In particular, the light-emitting paint according to the invention may be mixed evenly before use and the viscosity may be adjusted using a solvent.

Through the process as described above, the present invention is to produce a light-emitting coating using titanium dioxide coated nanoparticles to improve the photoluminescence of the light-emitting paint, luminous performance and increase the afterglow time.

The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.

Claims (4)

(a) synthesizing a powder material coated with nano titanium dioxide using a fluorine resin, an organic solvent, a dispersant, nano titanium dioxide, and a light emitting material powder;
(b) dispersing the powder material synthesized in step (a) and the film forming material, the solvent, the white filler and the auxiliary agent in a dispersing container;
(c) when the dispersion is completed in step (b), the method of manufacturing a light-emitting paint comprising the step of obtaining a light-emitting paint product through a filtration process. The method of claim 1, wherein step (a)
(a1) 500 to a mixture of 5.00-20.00 wt% of fluororesin, 10.00-50.00 wt% of organic solvent, 0.01-5.00 wt% of dispersant, 0.20-66.0 wt% of nano titanium dioxide, and 40.00-60.00 wt% of light emitting material powder. Dispersing for 30 to 60 minutes at an intermediate speed of from about 800 revolutions per minute;
(a2) drying the solution dispersed in the step (a1) at 60 to 80 ° C. and pulverizing to obtain a powder material coated with nano titanium dioxide,
The nano titanium dioxide is one of the anatase type, rutile type or a crystal mixed type of the anatase and rutile,
The light emitting material powder is any one or a mixture of two or more of silicate light emitting material, aluminate light emitting material, aluminosilicate light emitting material,
The organic solvent is xylene, isobutanol, propylene glycol, propylene glycol methyl ether, ethylene glycol monobutyl ether, propylene glycol mono Method for producing a light-emitting paint, characterized in that any one or a mixture of two or more of methyl ether acetate (Propylene Glycol Monomethyl Ether Acetate), butyl acetate (Butyl Acetate). The method of claim 1, wherein step (b)
(b1) 25 to 50% by weight of the film forming material, 5 to 50% by weight of the powder material coated with titanium dioxide, 0.1 to 30% by weight of solvent, 0.1 to 50% by weight of white filler and 0.1 to 30% by weight of auxiliary agent Mixing with the dispersion container
(b2) dispersing the mixture mixed in the step (b1) for 30 to 60 minutes at an intermediate speed of 500 to 800 revolutions / minute,
The film forming material is any one or a mixture of two or more of fluorine resin, epoxy resin, urethane resin, acrylic resin,
The fluororesin is a chlorotrifluoro ethylene copolymer or tetrafluoro ethylene copolymer,
The adjuvant is at least one of a dispersant, a defoamer, a leveling agent,
The solvent is xylene, isobutanol, propylene glycol, propylene glycol methyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl A method for producing a light-emitting paint, characterized in that any one or a mixture of two or more of ether acetate (Propylene Glycol Monomethyl Ether Acetate), butyl acetate (Butyl Acetate). The method of claim 1, wherein step (c)
Method for producing a light-emitting paint, characterized in that the filter with a mesh of 80 to 150 mesh.