JP2002220567A - Method for producing aggregate-containing coating material and primary color coating material paste used for the same method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing an aggregate material-containing coating, in which toning can readily be carried out and the composition of a coating material are not remarkably changed by toning and a primary color coating material paste used for the above method. SOLUTION: This plural primary color coating material pastes each comprise an aggregate and a binder. These primary color coating material pastes contain at least primary color coating material paste exhibiting three primary colors and further contain at least one kind of paste among primary color coating material pastes exhibiting white and black. A mixing apparatus 10 comprising a coating material-rotating device 11 and a hopper 12 is used and plural primary color coating material pastes are fed from a feed opening 14 extending to obliquely lower direction in the coating material-rotating device 11 into the hopper 12 to mix these pastes. Further, air is fed from an air feed pipe 18 into the hopper 12 and the mixed coating material is discharged from a discharge port 23 to provide the objective aggregate-containing coating material having a prescribed color tone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an aggregate-containing coating material for obtaining an aggregate-containing coating material having a predetermined color tone used as a building finishing material, and a primary color coating material paste used in the method. Things.

[0002]

2. Description of the Related Art A so-called aggregate-containing coating material is prepared by mixing a synthetic resin emulsion as a binder and an aggregate such as a colored aggregate, and is also called pottery lysine. The color tone of the conventional aggregate-containing coating material is determined at the time of shipment from the factory, and the mixing ratio of the aggregate exhibiting various colors at the time of manufacturing is determined. The toning method is performed by selecting the aggregates exhibiting various colors and changing the mixing ratio thereof.

[0003] For example, in the invention disclosed in Japanese Patent No. 3047291, the combination of colors of the colored coarse particles is determined by three primary colors,
Alternatively, toning can be performed by a combination of one or more types selected from these primary colors, white, and black, and has a feature that color development can be determined based on three primary colors. Further, if the prepared aggregate-containing coating material does not exhibit a predetermined coloration, the toned aggregate-containing coating material is further added with an aggregate such as a colored aggregate and mixed again. Toning is done.

[0004]

However, Patent No. 30
In the conventional method for manufacturing an aggregate-containing coating material including the invention of Japanese Patent No. 47291, the mixing ratio of the aggregate exhibiting various colors is determined at the time of manufacturing the coating material, and the mixing ratio of the aggregate-containing coating material is determined according to the mixing ratio. The coloring was decided. Therefore, when producing a coating material of a specific color for which the blending ratio has not been determined,
It was necessary to examine from the mixing ratio of the aggregate which shows various coloring. In addition, it is necessary to examine the mixing ratio of aggregates that exhibit a variety of colors from the beginning, even for colors that are close to the colors for which the mixing ratio is determined. Therefore, even when the color needs to be changed to an approximate color immediately before the application of the coating material, it is necessary to prepare a new color.

[0005] Further, when the prepared aggregate-containing coating material does not show a predetermined coloration, when the colored aggregate is added and mixed again, the aggregate-containing coating material obtained by toning is coated. There was also a problem that the material composition changed.

The present invention has been made by paying attention to the problems existing in the prior art as described above. An object of the present invention is to provide a method for producing an aggregate-containing coating material in which the toning can be easily performed and the coating material composition does not significantly change by the toning, and a primary color coating material paste used in the method. Is to provide.

[0007]

According to a first aspect of the present invention, there is provided a method for producing an aggregate-containing coating material, comprising the steps of: providing a primary color coating material paste containing an aggregate and a binder; A plurality of the primary color coating material pastes are selected and blended to obtain an aggregate-containing coating material having a predetermined color tone.

According to a second aspect of the present invention, in the method of manufacturing an aggregate-containing coating material according to the first aspect, the plurality of primary color coating material pastes include a primary color coating material paste exhibiting at least three primary colors.

According to a third aspect of the present invention, there is provided the method for producing an aggregate-containing coating material according to the first or second aspect, wherein the plurality of primary color coating material pastes further comprises a primary color coating material exhibiting white and black. It contains at least one of the material pastes.

According to a fourth aspect of the present invention, there is provided a method for manufacturing an aggregate-containing coating material according to any one of the first to third aspects, wherein the primary color is provided in the mixing container and the mixing container. At least two inlets for injecting the coating material paste into the mixing container, a supply port provided at the upper part of the mixing container, for supplying air into the mixing container, and a supply port provided at the lower part of the mixing container,
The primary color coating material paste is prepared using a mixing device having a discharge port for discharging the mixed aggregate-containing coating material downward by air.

According to a fifth aspect of the present invention, there is provided a primary color coating material paste used in the method for producing an aggregate-containing coating material according to any one of the first to fourth aspects.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. The method for producing an aggregate-containing coating material of the present invention includes a plurality of primary color coating material pastes containing an aggregate and a binder, at least one of the primary color coating material pastes is selected and blended, and a predetermined An aggregate-containing coating material having a color tone is obtained.

The aggregate can be classified into colored aggregate having a predetermined color tone and transparent aggregate other than colored aggregate. The colored aggregate is preferably used for giving a color tone to a coating film formed by the aggregate-containing coating material. Examples of the transparent aggregate include crushed glass, glass beads obtained by granulating glass, and the like, and are sometimes used for improving the design of a coating film formed by the aggregate-containing coating material.

Examples of the colored aggregate include those obtained by pulverizing colored natural stone. In addition, there are colored aggregates such as artificially colored stones and ceramics obtained by crushing stones and ceramics and industrially produced ones. For crushed colored natural stones,
Granite, serpentine, obsidian, fluorite, canary, shiratama, cold water, small cherry, lacquer snow, Mino haze, serpentine and other marble crushed grains, quartz sand, natural fine gravel (kinka, oiso, cherry sand) and the like.

Further, lightweight aggregates such as shirasu balloons, perlite, and foamed crushed glass materials can be used. Artificially colored light aggregates can also be used.

Examples of the colored aggregate obtained by artificially coloring a crushed stone include a crushed colored natural stone or silica sand, cold water sand, and carbon black, redwood, oka, and phthalocyanine blue against broken ceramics. And those coated with a glaze.

Examples of the industrially produced colored aggregate include glass beads having a substantially spherical glass and plastic beads having a substantially spherical synthetic resin such as an acrylic resin. These can be colored from the inside during the aggregate manufacturing process.

In addition, a luminous component can be added to paints, glazes, and the like, which are coloring components of the artificially colored colored aggregate and the industrially produced colored aggregate. Furthermore, a phosphorescent component can be obtained by adding a phosphorescent component to glass or synthetic resin. Thus, the luminous aggregate can be obtained, and the luminous aggregate can be contained in the aggregate-containing coating material as a colored aggregate.

Compared to ground natural stone, artificially colored aggregates and industrially produced colored aggregates are more stable in both particle size and color tone, and are used as aggregate-containing coating materials. Easy to use because the color tone is stable. In particular, artificially colored silica sand, cold water sand, and porcelain flakes are preferably used because they are easily available and have excellent miscibility with a binder described below.

Silica sand contains silicon dioxide as a main component, and is classified into a natural state typified by river sand and sea sand, and a granular state obtained by crushing silica stone to adjust the particle size. Cold water sand is mainly composed of calcium carbonate, and may be one obtained by grinding cold water stone to adjust the particle size. Ceramic crushing is obtained by crushing ceramic, and is used after adjusting the particle size. These aggregates can be appropriately selected and used.

The particle size of the aggregate is 0.037 to 0.037.
Those having a range of 5.0 mm are preferable. This particle size is 0.0
If it is less than 37 mm, the coating film formed by the aggregate-containing coating material may be cracked due to shrinkage. In addition, the coating film has little versatility due to the aggregate and may lack designability. On the other hand, if the particle size exceeds 5.0 mm, the coating film formed by the aggregate-containing coating material may be rough and lack design. 0.037
Those having a range of from 2.0 mm to 2.0 mm are more preferable. Those in this range have good design properties of the coating film formed by the aggregate-containing coating material, and those in the range of 0.45 to 0.8 mm increase the stability of the aggregate-containing coating material, The coating film has a variety of feelings, and the design is further improved.

The content of the aggregate is preferably 50 to 95% by weight in terms of the solid content of the primary color coating material paste. When the content is less than 50% by weight, the content of the aggregate is small, and the design as the aggregate-containing coating material may be lacking.
On the other hand, when the content exceeds 95% by weight, the binder is insufficient, and the coating film obtained after coating may become brittle, and physical properties may not be maintained.

Next, the binder has an effect of joining the aggregates and an effect of bringing the aggregate into close contact with the object to be coated, and it is preferable that the dried coating film obtained by using the binder alone transmits light to some extent. Such a binder is obtained from a silicone resin, an acrylic resin, an epoxy resin, a urethane resin, a polyester resin, or the like. These may be used alone or in combination of two or more. These synthetic resins are used in the form of a synthetic resin emulsion dispersed in water using an emulsifier, a solution dissolved in an organic solvent, or a dispersion dispersed in a solvent. Since the synthetic resin emulsion is water-based, it is easy to handle. Colloidal silica or the like can also be used as an inorganic binder.

The content of the binder in the solid content of the primary color coating material paste is preferably 5 to 50% by weight.
If this content is less than 5% by weight, the coating film obtained after coating may become brittle and physical properties may not be maintained. On the other hand, when the content exceeds 50% by weight, curing of the coating film may be delayed. In addition, there is a possibility that the design properties of the aggregate-containing coating material may be lacking.

As other additives, thickeners, defoamers, wetting agents, preservatives, high-boiling solvents and the like may be added. The thickener, when added to the primary color coating material paste, has an effect of preventing settling of the aggregate and an effect of improving workability when applied as a coating material. The antifoaming agent is added to the primary color coating material paste to prevent the generation of bubbles during the production of the primary color coating material paste, to make the amount of foam in the coating material appropriate, and to stabilize the specific gravity of the coating material. Have. The wetting agent has the effect of improving the wettability of the surface of the aggregate in the presence of the coating material and of improving the wettability with the object to be coated during construction. The preservative has an effect of sterilizing various germs mixed into the coating material, and has an effect of preventing the coating material from spoiling. The high-boiling solvent is used as a film-forming aid for improving the film-forming properties of the coating material or as a deicing agent for preventing the coating material from freezing.

In this embodiment, the primary color coating material paste is
A synthetic resin emulsion as a binder, an aggregate and other additives were added, and the mixture was stirred using a mixer or the like. In the present embodiment, a small number of arbitrary colors are prepared. The minority type is preferably 2 for convenience of toning.
Although there are about 5 to about 5 colors, about 6 to 10 colors or more may be used as necessary. Particularly preferred color combinations are the three primary colors, or a combination of these primary colors with white and black. By using the three primary colors of the primary color coating material paste, it is possible to achieve a desired color tone without preparing a unique primary color coating material, and the number of prepared colors is small, and the color can be easily adjusted. be able to.

Further, by using white and black in addition to the three primary colors, light and dark toning can be easily performed. In addition to these basic color combinations, any color other than the primary colors may be combined. The primary color coating material paste is added with an aggregate-containing coating material and other additives so that the ratio of resin / aggregate is constant and only the primary color coating material can be used as an aggregate-containing coating material.

Specifically, a synthetic resin emulsion (solid content: 30 to 60% by weight) is added with a solid content of 5 to 50% by weight, a white aggregate is added with a solid content of 40 to 90% by weight, and other additives. A white primary color coating material paste can be obtained by stirring and using such a method. Similarly, a blue primary color coating material paste is obtained by replacing white aggregate with blue aggregate, and a yellow primary color coating material paste is obtained by replacing white aggregate with yellow aggregate. The same amount of each of the blue primary color coating material paste and the yellow primary color coating material paste as the raw material coating paste is added to the white raw material coating material paste, and the mixture is kneaded to obtain a light green toned aggregate-containing coating material. .

Next, an example of a method for producing an aggregate-containing coating material performed by using a mixing device will be described in detail with reference to FIGS. 1 is a perspective view of a main part of the mixing apparatus, FIG. 2 is a partially cutaway front view of the mixing apparatus, FIG. 3 is a sectional view taken along line 3-3 in FIG. 1, and FIG. 4 is a perspective view showing the entire mixing apparatus.

As shown in FIG. 1 to FIG.
Is formed by joining a hopper 12 also forming a mixing container to a lower portion of a columnar coating material swirler 11 as a mixing container. Injection ports 13 for injecting the raw material coating material paste are opened at four locations on the peripheral wall 11a of the coating material swirler 11, and each of the injection ports 13 has a supply hole 1 extending obliquely downward.
4 are connected. The four supply holes 14 extend obliquely downward in the coating material swirler 11 so that the supplied raw material coating material paste rotates in a certain direction.

As shown in FIG. 4, a feed pump 16 is provided below the raw material hopper 15, and the feed pump 16
A connection pipe 17 connects between the mixing device 10 and the injection port 13 of the coating material swirler 11 of the mixing device 10. Then, each raw material coating material paste is supplied from the raw material hopper 15 to the mixing device 10.

As shown in FIGS. 1 and 2, the coating material swirler 1
An air supply pipe 18 is supported at a central portion of the device 1 so as to penetrate through the coating material swirler 11 and protrude downward. An air supply port 19 for supplying air is provided at an upper end thereof, and an air supply port 19 is provided at a lower end thereof. Is provided with a small-diameter nozzle 20 for blowing air at a high speed.

As shown in FIG.
The air supply port 19 of the air supply pipe 18 is connected to an air hose 22 so that the air compressed by the air compressor 21 is supplied to the air supply pipe 18.

As shown in FIGS. 1 and 2, a discharge port 23 is opened at the lower end of the hopper 12 so as to discharge the mixed raw material coating material paste downward.
Then, after each raw material coating material paste supplied from each injection port 13 in the hopper 12 is mixed in a swirling state, it is discharged from the discharge port 23.

The four types of raw material coating material paste are supplied from the raw material hopper 15 into the coating material swirler 11 by the pressure feed pump 16. The raw material coating material paste supplied into the coating material swirler 11 is swirled by a supply hole 14 extending obliquely downward. The raw material coating material pastes are mixed with each other by swirling, and descend inside the hopper 12 toward the discharge port 23. On the other hand, air is supplied from the air compressor 21 to the air supply pipe 18 via the air hose 22 and the air supply port 19, and is blown downward from the nozzle 20 at the lower end thereof. Therefore, the swirling raw material coating material paste is discharged downward from the discharge port 23 by the air.

The discharged raw material coating material paste is supplied to the discharge port 2
3 falls into the dish-shaped remixing container 24 disposed immediately below and is mixed again. Then, the raw material coating material paste overflowing from the remixing container 24 is stored in the storage container 25 disposed below the remixing container 24.

As described above, by using the mixing device 10, the raw material coating material paste can be mixed and toned in the mixing container 11. Furthermore, the raw material coating material paste discharged downward from the discharge port 23 is mixed again in the remixing container 24 and stored in the storage container 25, whereby the mixing can be further ensured.

Then, for example, as a raw material coating material paste,
The blue primary color coating material paste and the yellow primary color coating material paste are filled in separate raw material hoppers 15, respectively. Next, the pressure feed pump 1
The pumping amount was adjusted by the inverter No. 6, and the respective coating material pastes were fed to the mixing device 10 at the same pumping amount, and further stored in the storage container 25. As a result, the mixed aggregate-containing coating material uniformly showed a light green color.

FIG. 5 is a perspective view showing an example in which an aggregate-containing coating material manufactured by using the mixing device 10 is directly applied to a plate-like object 26 to be coated. As a raw material coating material paste, a blue primary color coating material paste and a yellow primary color coating material paste are filled in separate raw material hoppers 15, respectively. The inverters of the pumps 16 were adjusted to the same pumping amounts by using a computer control system, and were pumped to the mixing device 10. The fed coating material paste is mixed and toned by the mixing device 10,
The air was discharged from the discharge port 23 by the air from the nozzle 20 and sprayed on the work 26. The sprayed aggregate-containing coating material showed a light green color uniformly.

As described above, according to this embodiment, the following effects are exhibited. -Toning can be easily performed by selecting and blending at least one of a plurality of primary color coating material pastes.

The plurality of primary color coating material pastes contain at least three primary colors, so that the toning can be performed more easily. In addition, it is possible to achieve many colors with a small number of types. Further, the number of types possessed is small, and the cost can be reduced.

The primary color coating material paste further comprises at least one of white and black,
Light and dark toning can be performed. The mixing is performed in the mixing device 10, whereby an aggregate-containing coating material that is continuously toned can be obtained.

Since the toning coating material paste contains a binder, the coating material composition does not significantly change due to toning.

[0044]

EXAMPLES Examples and comparative examples which embody the above embodiment will be described below. In Examples and Comparative Examples, an acrylic resin emulsion (solid content: 45% by weight) was used as a binder. Also, as aggregate,
Cold water sand and colored aggregate were used. Cold water sand, which was not colored, was used as white aggregate. Also, colored aggregates
It is colored quartz sand. The average particle diameter of the cold water sand and the colored aggregate was 0.5 mm. The colored aggregate is placed in a container containing a certain amount of silica sand, and the coating material used for coloring is sprayed so as to be evenly coated on the entire silica sand while stirring with a mixer, and dried using hot air while applying vibration. Was used.

In the primary color coating material paste, the acrylic resin emulsion was 15% by weight in solid content, and the aggregate was 85% in solid content.
A thickener, an antifoaming agent, and a film-forming aid were appropriately added to the weight% as other additives, and the mixture was stirred with a butterfly mixer. A red paint paste (hereinafter referred to as paste A) using a red aggregate is used as the aggregate.
A paste using a blue aggregate was referred to as a blue paint paste (hereinafter referred to as paste B), and a paste using the yellow aggregate was referred to as a yellow paint paste (hereinafter referred to as paste C). . A paste using white aggregate cold water sand is referred to as a white paint paste (hereinafter referred to as paste D), and a paste using black aggregate is referred to as a black paint paste (hereinafter referred to as paste E). And Example 1 2 kg of paste A, 4 kg of paste B and paste C for 10 kg of an aggregate-containing coating material (white)
Was added and mixed by the method described in the embodiment. As a result, the color tone of the obtained aggregate-containing coating material is
Y37-50D approximate color (grass color). Example 2 An aggregate-containing coating material (white) was toned to a color similar to YN-50D (gray). Aggregate-containing coating material (white)
1 kg of paste A and 1 k of paste B for 5 kg
g and 1 kg of paste C were added and mixed by the method described in the embodiment. The color tone of the obtained aggregate-containing coating material was a color similar to YN-60D (dark gray). For re-coloring, 2 kg of paste D was added and mixed again. As a result, an aggregate-containing coating material having a color similar to YN-50D (gray) was obtained. Example 3 Using the mixing apparatus 10 shown in FIG. 4, the aggregate-containing coating material (white), the paste A, the paste B, the paste C, and the paste E were put into the raw material hopper 15, which is a primary storage device. . The aggregate-containing coating material and each primary color coating material paste are adjusted by the inverter of the pressure pump 16 to determine the flow rate (mixing ratio), and are sent to the mixing device 10.
Mixed within 0.

Using a control system using a computer, the flow rate of each coating material was adjusted by an inverter of the pressure pump 23, and an aggregate-containing coating material (white): paste A: paste B: paste C: paste E = 10: 3: 1: 1: 1
(Kg / min). The compressed air was sent from the air compressor 21 to the mixing container 11 at 0.3 MPa, and the aggregate-containing coating material was continuously filled in the storage tank. The obtained aggregate-containing coating material has a color tone of Y05-50.
F-like color (red) was shown. (Example 4) Subsequent to Example 3, using the mixing apparatus 10 shown in FIG. 5, an aggregate-containing coating material (white): paste A: paste B: paste C: paste E = 10: 1: 3:
The mixture was fed to the mixing vessel 11 at a flow rate of 1: 1 (kg / min). Compressed air is sent from the compressor 25 to the mixing vessel 11 at 0.3 MPa. The compressed air and mixing device 1
0 was applied to the object to be coated. As a result, the obtained skin-based coating film showed a color tone similar to Y69-60H (blue color). (Example 5) Aggregate-containing coating material (white): paste A: paste B: paste C: paste E = 10: 3: 1: 1:
The mixture was charged into a mixing vessel at a rate of 1 (kg), and the particle size was further reduced to 2.
0.5 kg of 5 mm black aggregate was put and stirred for 5 minutes with a hand mixer. As a result, the color tone as the ground color is Y05-5.
The color became similar to 0F (red color). However, the presence of black aggregate added later resulted in a more colorful finish. (Comparative Example 1) 1 kg of black aggregate was added to 5 kg of the aggregate-containing coating material (white) to mix and mix the aggregate-containing coating material (white) to the YN-50D approximate color (gray). Was performed. As a result, the obtained aggregate-containing coating material was YN-60D.
An approximate color (dark gray) was obtained, and the target color was not obtained. When the composition of the coating material was examined, the binder was insufficient. (Comparative Example 2) In order to color the aggregate-containing coating material (white) to a color similar to YN-50D (gray), black aggregate was dispersed in water with respect to 5 kg of the aggregate-containing coating material (white). 1 kg of the resulting paste was added and mixed. As a result, the obtained aggregate-containing coating material was a color similar to YN-50D (gray), and the target color was obtained. However, when the coating material composition was examined, the binder was insufficient.

The above embodiment can be modified as follows. Part or all of the aggregate may be pearl pigment or mica powder. -A pigment may be further added as a coloring material.

The particle size is 2 to 5 mm with respect to the aggregate-containing coating material.
May be added. Next, technical ideas that can be grasped from the embodiment will be described below. A coating material coating method comprising: mixing a plurality of primary color coating material pastes containing an aggregate and a binder in the mixing device according to claim 4; and coating the object using the mixing device. According to this coating method, the coating can be easily performed by the mixing device that performs the toning.

The mixing container comprises a coating material swirler for rotating the primary color coating material paste injected from the injection port by a supply hole extending obliquely downward, and a hopper provided at a lower portion thereof. 3. The method for producing an aggregate-containing coating material according to item 1. According to this manufacturing method, the primary color coating material paste can be swirled in the coating material swirler to be more effectively mixed in the hopper.

[0050]

The present invention is configured as described above, and has the following effects. According to the method for producing an aggregate-containing coating material of the first aspect of the present invention, toning can be easily performed, and the coating material composition does not significantly change due to toning.

According to the method for producing an aggregate-containing coating material of the invention described in claim 2, in addition to the effect of the invention described in claim 1,
A large number of colors can be easily adjusted with a small number of types.
According to the method for producing an aggregate-containing coating material of the invention described in claim 3, in addition to the effects of the invention described in claim 1 or 2,
It can give light-dark changes.

According to the method of manufacturing an aggregate-containing coating material of the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, in addition to the preparation of a primary color coating material paste And discharge can be easily performed.

According to the primary color coating material paste of the invention described in claim 5, the effects of the invention described in any one of claims 1 to 4 can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a mixing apparatus according to an embodiment.

FIG. 2 is a partially broken front view showing a mixing device.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a schematic explanatory view showing the entire mixing device.

FIG. 5 is a schematic explanatory view showing a state in which a coating material is sprayed from a mixing device onto an object to be coated.

[Explanation of symbols]

10: mixing device, 11: coating material swirler as mixing container,
12: hopper as a mixing container, 13: injection port, 19
... air supply port, 23 ... discharge port.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D075 BB16X CA48 CB28 CB36 DA06 DC02 EA07 EA10 EA13 EB22 EB33 EB35 EB38 EB43 EC13 4F042 AA17 AA18 BA17 CB07 CB27 4J038 CG001 CG002 DB001 DD001 DG001 HA031 HA031 MA10 NA01 PA18 PA19 PB05

Claims (5)

[Claims] 1. An aggregate-containing coating material having a predetermined color tone, comprising a plurality of primary color coating material pastes containing an aggregate and a binder, and selecting and blending at least one of the primary color coating material pastes. A method for producing an aggregate-containing coating material, comprising: 2. The method for producing an aggregate-containing coating material according to claim 1, wherein the plurality of primary color coating material pastes include a primary color coating material paste exhibiting at least three primary colors. 3. The plurality of primary color coating material pastes further include at least one of the primary color coating material pastes exhibiting white and black.
The method for producing an aggregate-containing coating material according to claim 1 or 2, wherein the coating material contains a seed. 4. A mixing container, at least two inlets provided in the mixing container for injecting the primary color coating material paste into the mixing container, and a supply provided at an upper portion of the mixing container to supply air into the mixing container. The primary color coating material paste is prepared using a mixing device having a mouth and a discharge port provided at a lower portion of the mixing container and discharging the mixed aggregate-containing coating material downward by air. 4. The method for producing an aggregate-containing coating material according to any one of the above items 3. 5. A primary color coating material paste used in the method for producing an aggregate-containing coating material according to any one of claims 1 to 4.