JPH10244213A - Method for formation of bright paint film and article coated therewith - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a bright paint film which is high in brightness, dense feel, and a flip-flop property by setting the total solid content of base coat coating on a specific wt.%, and a bright pigment concentration on a specific wt.% of total solid content in a base coat coating. SOLUTION: When a base coat coating containing a bright pigment is applied onto a base material to be coated, total solid content of the base coating is 5-25wt.% in coating, preferably 5 to about 20wt.% and further preferably 5-10wt.%, and concentration of the bright pigment in the base coat film is 5-100wt.% of total solid content, preferably 15-100wt.%, especially preferably 15-80wt.%, and further preferably 30-80wt.% to execute coating. By this method, since the solid content in coating of the base coat coating material is low, a viscosity in coating is low, the bright pigment tends to be oriented horizontally to the paint film, and brightness and dense feel are obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a brilliant coating film having a high brilliantness, denseness and flip-flop sensation suitable for topcoating of various furniture, home appliances, automobiles and the like, and coating by the same. It relates to the painted object.

[0002]

2. Description of the Related Art Heretofore, as an industrial paint for giving a glittering high-grade metallic feeling to a coating film, a composition containing a glitter pigment has been widely used. Aluminum flake pigments, which are frequently used as glittering pigments for imparting metallic and glittering feelings to metallic paints, are known to have leafing and non-leafing scales.

[0003] Japanese Patent Publication No. 4-1695 discloses the use of such a leafing type aluminum flake pigment and a non-leafing type aluminum flake pigment. The first metallic coating containing flake-like aluminum (leafing type) which is oriented almost uniformly is formed, and the first metallic coating has a strong affinity with the paint on the first metallic coating. A coated article provided with a metallic coating in which a second metallic coating containing flake-like aluminum (non-leafing type) that has settled and is unevenly oriented has been proposed. However, this metallic coating forms a metallic coating layer containing leafing scaled aluminum under the non-leafing metallic base coating in order to prevent the unevenness of the metallic base coating. It does not form a decorative coating film.

[0004] In addition, Japanese Patent No. 2555252 discloses that after coating a base coat paint containing a leafing type aluminum pigment, and then drying it naturally or forcibly,
As a metallic finishing method in which a clear paint is applied repeatedly, a metallic finishing method in which at least one of a base coat paint and a clear paint contains a zircoaluminate-based coupling agent has been proposed. However, this metallic finishing method improves the interlayer adhesion between the base coat film and the clear coat film, and does not form a dense design film having a strong glitter.

[0005] Conventionally, as a method of forming a base coat film containing the above-mentioned brilliant pigment,
After applying the basecoat paint, wet-on-wet, semi-cured at about 80 ° C. × 5 minutes to 140 ° C. × 15 minutes, or completely cured by baking at about 140 ° C. × 30 minutes, then as a top coat It is a general method to apply a clear top paint and to perform a baking finish.

[0006] On the other hand, it has been known that the content of a brilliant pigment in a base coat film should be increased in order to obtain a shining and dense coating film. However, in practice, the content of the brilliant pigment contained in the base coat coating film is limited to 30% by weight based on the total solid content of the base coat coating film. It was unsuitable for use.

[0007]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a brilliant coating film having a high brilliantness, denseness, and flip-flop sensation suitable for topcoating for various furniture, home appliances, automobiles and the like. It is an object of the present invention to provide a forming method and a coated article coated thereby.

[0008]

Under such circumstances, the present inventors have made intensive studies and as a result, by forming a base coat coating film containing a brilliant pigment at a low solid content, it is possible to obtain a brilliant, dense and flip-flop sensation. It has been found that a brilliant coating film having a high gloss can be obtained, and the present invention has been completed.
That is, in the present invention, when a base paint containing a glitter pigment is applied on a substrate to be applied, the total solid content of the base coat paint is 5 to 25% by weight at the time of application. Another object of the present invention is to provide a method for forming a brilliant coating film in which the brilliant pigment concentration is 5 to 100% by weight of the total solid content in the base coat coating film.

[0009] The present invention also provides a coated article coated by the method for forming a glittering coating film.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The glittering coating film forming method of the present invention comprises:
On the substrate to be coated, a base coat paint containing a brilliant pigment is to be applied at a low solid content, and as a component constituting the base coat paint, except for containing a brilliant pigment as an essential component, particularly It is not limited, and is composed of the same components as those usually used in this type of paint. Specifically, a film-forming resin, a coloring pigment, an organic solvent and / or a water solvent, and various additives are included. No.

The brilliant pigment is not particularly restricted but includes aluminum flake pigments and flake pigments other than aluminum flake pigments. Examples of the aluminum flake pigment include a leafing type aluminum flake pigment (hereinafter abbreviated as leafing type aluminum) and a non-leafing type aluminum flake pigment (hereinafter abbreviated as non-leafing type aluminum). The particle size of the aluminum flake pigment is not particularly limited. For example, the thickness is 0.1 μm to 2.0 μm, and the average particle size (major axis) is 1 μm to 25 μm, preferably
The thickness is preferably 5 μm to 20 μm. The leafing type aluminum is obtained by subjecting aluminum flakes to a surface treatment by ball milling in the presence of a fatty acid lubricant such as stearic acid, and is manufactured by a known technique. Commercially available products include, for example, Sap110 and 120 (all manufactured by Showa Aluminum Powder Co., Ltd.) and Alpaste 0100M, 0200M and 0620MS (all manufactured by Toyo Aluminum Co., Ltd.). Since the leafing type aluminum has a large surface tension and a low affinity for solvents and paints, it floats on the surface side (upper side) of the base coat film and is almost uniformly oriented, thereby exhibiting excellent substrate hiding properties. It is. On the other hand, non-leafing type aluminum is surface-treated with oleic acid, and has low surface tension and strong affinity with solvents and paints. And thereby exhibit excellent gloss. As a commercial product, for example, aluminum paste MC
-666 and MH-8801 (all manufactured by Asahi Kasei Metals), aluminum paste 1700NAL, 7160N and 7680NS (all manufactured by Toyo Aluminum).

The leafing type aluminum and the non-leafing type aluminum may be used alone or in combination. In the case of mixed use, the mixing ratio is not particularly limited, but is preferably 9/1 to 5/5 by weight ratio of leafing type aluminum and non-leafing type aluminum.

The flake pigments other than the aluminum flake pigment include titanium flake, stainless flake, plate-like iron oxide, phthalocyanine flake, graphite, mica coated with titanium dioxide, colored mica, metal-plated mica, and metal-plated glass flake. Can be mentioned. Flake pigments other than the aluminum flake pigment may be used alone or as a mixture. When these are used in combination with the aluminum flake pigment, they are used in such an amount as not to hinder the glitter of the aluminum flake pigment.

Examples of the resin for forming a coating film include acrylic resins, polyester resins, alkyd resins, and fluororesins, and are usually used by mixing with a crosslinking agent such as an amino resin or a block polyisocyanate compound. Is done. These coating film forming resins can be used alone or in combination of two or more.

As the above-mentioned coloring pigments, those which have been conventionally used for paints are used. For example, as the organic pigments, azo lake pigments, phthalocyanine pigments, indigo pigments, perinone pigments, perylene pigments, quinophthalone pigments are used. Pigments, dioxazine-based pigments, quinacridone-based pigments, isoindolinone-based pigments, metal complex pigments, and the like can be given, and examples of inorganic-based pigments include graphite, yellow iron oxide, red iron oxide, and titanium dioxide. The addition amount of the coloring pigment is arbitrarily set according to the hue of the coating color.

Representative examples of the organic solvent include hydrocarbons such as toluene and xylene, ketones such as acetone and methyl ethyl ketone, esters such as ethyl acetate, butyl acetate, cellosolve acetate and butyl cellosolve, and alcohols. Can be

Examples of various additives include a curing catalyst such as dodecylbenzenesulfonic acid, a benzotriazole-based ultraviolet absorber, a benzophenol-based antioxidant, a surface conditioner such as silicone and an organic polymer, and a sagging agent. Stoppers, thickeners, crosslinkable polymer particles (microgels) and the like are appropriately used. These components can generally improve the performance of paints and coatings in amounts of 5 parts by weight or less based on 100 parts by weight of the resin for forming a coating.

The base coat paint composed of the above-mentioned components constitutes a paint in various forms such as an organic solvent type, a non-aqueous dispersion type, an aqueous solution type and an aqueous type such as an aqueous dispersion type. From a regulatory point of view, an aqueous system is preferred. In the case of an aqueous system, an appropriate amount of a hydrophilic organic solvent can be contained.

The substrate to be coated includes metals including iron, aluminum, copper or alloys thereof, inorganic materials such as glass, cement and concrete, polyethylene, polypropylene and ethylene-vinyl acetate. Polymer, polyamide, polyacryl, polyester, ethylene-polyvinyl alcohol copolymer, vinyl chloride resin, vinylidene chloride resin, polycarbonate,
Examples include resin molded products such as polyurethane, plastic materials such as various FRPs, wood, and fiber materials.

As the substrate to be coated, a substrate on which a base coat is formed can also be used. Examples of such an undercoating film include a clear coating film, a solid coating film, and a glitter coating film, and among them, a clear coating film is preferable. The coating composition for forming at least one layer of the coating film is not particularly limited, but those having the same composition as the base coat coating composition are also preferable because of their close solubility parameters. The clear coating film is not particularly limited, and is composed of the same components as those conventionally used in this type of coating material.Specifically, as long as the transparent resin and its transparency are not impaired, for example, Organic solvents, water, pigments, modifiers,
It is composed of various additives such as an ultraviolet absorber, a leveling agent, a dispersant, and an antifoaming agent. As the components, the same components as those of the base coat paint can be used.
The solid coating film or the glitter coating film is not particularly limited, and may be composed of the same components as those conventionally used in this type of coating. In addition, the undercoat film, in addition to the case of newly forming a coating film on the electrodeposition paint and intermediate coating film applied to the substrate to be coated, a solid coating film as the intermediate coating film or The bright coating film may be used as a base coating film.

In the method for forming a glitter coating film of the present invention, when the base coat paint containing a glitter pigment is applied on the substrate to be coated, the total solid content of the base coat paint is 5 to 25 at the time of coating. %, Preferably 5 to 20% by weight, more preferably 5 to 10% by weight, and the concentration of the brilliant pigment in the base coat film is 5 to 100% by weight of the total solids, preferably 15% by weight. To 100% by weight, particularly preferably 15 to 80% by weight, more preferably 30% by weight.
Paint at ~ 80% by weight. According to this method, since the solid content at the time of application of the base coat paint is low, the viscosity at the time of application is low, and the glittering pigment is easily oriented horizontally with respect to the coating film,
Brightness and denseness can be obtained.

In the present invention, when a substrate having a base coat formed thereon is used as the base material to be coated, a base coat is formed on the base coat by wet-on-wet (hereinafter sometimes abbreviated as W / W). It is preferable to form a coating film. The method of coating with W / W means that the undercoating film is applied in a semi-cured state or an uncured state. Preferably, after applying the undercoating material, the undercoating film is dried by air-drying. Thereafter, it is preferable to apply the base coat paint from the viewpoint that a finished coating film having a brilliant feeling and a dense feeling can be obtained.

The above-mentioned total solid content refers to a nonvolatile component in a paint,
That is, it refers to a coating film forming component, and as a method of measuring the total solid content, a known method is used, for example, JIS
K5407-4 It may be performed in accordance with the heating residue.

In the present invention, it is preferable that at least one clear top coating film is further formed on the base coat coating film. Further, when the total solid content of the base coat paint is 5 to 10% by weight at the time of application, and when the glittering pigment is applied at 30 to 80% by weight of the total solid content in the base coat coating film, after the base coat application, It is preferable to form at least two clear top coating films. When the content of the glitter pigment is large, the surface glitter is improved by forming two or more clear top coatings. As the clear top coating film, a coating film having the same components as the clear coating film forming the base coating film can be used.

Further, as a method of forming a clear coating film on the base coating film, a glitter pigment contained in the base coating film may be a mixture of leafing aluminum or a mixture of leafing aluminum and non-refining aluminum. In this case, it is preferable to perform the preheating (3 coats 1 bake, 2 coats 1 bake), semi-cured (3 coats 1.5 bake, 2 coats 1.5 bake) or cured (3 coats 2 bake, 2 coats 2 bake). In the state of W / W,
It is difficult to obtain a bright and dense coating film.
The preheating is performed, for example, in a temperature range of 80 to 100 ° C.
Obtained by heating for about 1 to 10 minutes, the semi-cured
For example, it is obtained by heating in a temperature range of 120 to 140 ° C. for about 5 to 15 minutes, and the curing is performed by, for example,
It can be obtained by baking at 140 to 160 ° C. for about 30 minutes.

In the case of flake pigments other than non-leafing type aluminum and aluminum flake pigments, W /
W or preheat (3 coats 1 bake, 2 coats 1 bake), semi-cured (3 coats 1.5 bake, 2 coats 1.5 bake) or cured (3 coats 2 bake, 2 coats 2 bake)
Preferably, the W / W is the same as the W / W state when the base coat film is formed on the undercoat film, and the preheating is performed, for example, at 80 to 100 ° C.
Is obtained by heating for about 1 to 10 minutes in a temperature range of, for example, the semi-cured state is obtained by heating for about 5 to 15 minutes in a temperature range of 120 to 140 ° C. For example, by heating at 140 to 160 ° C. for about 30 minutes. When the top clear coating film is applied a plurality of times, the final clear coating film may be cured, and W / W, preheating, semi-curing or curing can be appropriately selected for drying the lower clear coating film.

In the present invention, the coating can be applied directly to the substrate to be coated. However, for example, in the case of coating the body of an automobile, etc., usually, after the surface conversion treatment, an undercoating or an intermediate coating with an electrodeposition paint or the like is applied. After the coating is cured, it is applied. The coating operation is performed by air spray coating, electrostatic coating or the like using an atomizing type coating machine. However, as described above, when the intermediate coating film is used as the base coating film of the present invention, the base coating material is applied in a semi-cured or W / W state without curing the intermediate coating film. You may.

The glitter coating film formed by the above method is
When the undercoat is a clear coat, the thickness of the undercoat is 5
30 to 30 μm, preferably 5 to 20 μm. When the undercoat is a solid coating or a glitter coating, the thickness of the undercoat is 10
５０50 μm, preferably 15-40 μm, the thickness of the base coat film is 2-30 μm, preferably 5-20 μm
m, the thickness of the top clear coating film is 10 to 80 μm, preferably 20 to 50 μm.

[0029]

According to the glittering coating film forming method of the present invention,
Even if a large amount of brilliant pigment is contained in the base coat coating film,
The finished skin does not deteriorate, and in the case of metal flake pigments and metal plating flake pigments, a metallic-like glitter and dense coating film is obtained. With a plate-like iron oxide, graphite, or the like, a coating film having a strong luster and a dense coating can be formed. Therefore, it is extremely useful when used for various fixtures, home appliances, automobiles and parts thereof, etc., which require a brilliant feeling.

[0030]

EXAMPLES Next, the present invention will be described more specifically with reference to examples, but this is merely an example and does not limit the present invention. Examples 1 to 38 The base paint, base coat paint and clear top paint shown below were prepared, and a glittering coating film was formed through the following steps. However, Examples 14 to 18 and Examples 35 to 38
Is an example without a base coat. (Preparation of substrate to be coated) Dull steel plate (length 300mm, width 100m, thickness 0.8mm) was treated with zinc phosphate treatment agent (Nippon Paint Co., Ltd.
After a chemical conversion treatment with “Surfdine SD2000”), a cationic electrodeposition paint (Nippon Paint Co., Ltd., “Power Top U-30” epoxy urethane / cationic resin system) was applied to dry the coated film to a thickness of 20 μm. I painted. Then, an intermediate coating (Nippon Paint Co., Ltd., Olga P-2
Gray "polyester melamine resin) was applied by air spraying so that the dried coating film became 35 .mu.m, and baked to form an intermediate coating film.

(Formation of brilliant coating film) First, an undercoating material is applied on the prepared base material so as to have a dry film thickness of 10 μm, and is in a state of W / W (room temperature, left for 3 minutes). Bottom, from above, thinner (component system; ethyl acetate (50 parts by weight)
/ Toluene (25 parts by weight) / Solvesso-150 (25
(Parts by weight)) and air spray coating was performed while setting (coating viscosity: 9 seconds / No. 4 ford cup; 20 ° C.) under the conditions shown in Table 1 to form a base coat film. A clear top coating was applied to the surface of the base coat under the conditions shown in Table 1 to form a glitter coating. The brilliant feeling, dense feeling and flip-flop feeling of this brilliant coating film were evaluated according to the following methods. The results are shown in Tables 1 to 6.
In the table, the brilliant pigment content (wt%) indicates the ratio to the total solid content. In the table, W / W in the method of drying the base coat film was performed at room temperature for 3 minutes.

(Undercoat) Acrylic resin (copolymer of styrene / methyl methacrylate / ethyl acrylate / hydroxyethyl methacrylate / methacrylic acid, number average molecular weight: about 20,000, hydroxyl value: 45, acid value: 15, solid content:
80% by weight of 50%) and 20 parts by weight of a melamine resin (trade name “Uban 20SE” manufactured by Mitsui Toatsu Chemicals, Inc., solid content: 60%) were mixed to prepare a base coating material (clear coating material).

(Basecoat paint) Alpaste 7680NS as non-leafing type aluminum was added to the base paint,
A base coat is prepared by blending Alpaste 0620MS (all manufactured by Toyo Aluminum Co., Ltd.) as a leafing type aluminum so that the aluminum pigment content (weight solid content) shown in Tables 1 to 6 in the total solid content in the coating film. A paint was prepared.

(Clear top paint) Acrylic / melamine resin clear paint ("Super Luck 0-150")
Nippon Paint Co., Ltd.).

(Glitter) The glitter was evaluated by visual observation according to the following criteria. Design with sharp glitter: ○ Design with glitter that lacks a little sharpness: 意 Design with brilliant glitter: × (Dense feeling) The dense feeling was evaluated by visual observation according to the following criteria. Smooth, shiny, dense design… ○ Slight flakes remain, but dense design… △ Designs with flakes remaining and lacking in density… × (Flip-flop feeling) Was evaluated. Strong flip-flop property: ○ Slightly strong flip-flop property: Poor flip-flop property: × (Surface glossiness) The state of the coating film on the surface was evaluated by visual observation according to the following criteria. Glossy with strong clarity… ○ Glossy with a slight foreign object sensation… △ Glossy with low clarity… ×

[0036]

[Table 1]

[0037]

[Table 2]

[0038]

[Table 3]

[0039]

[Table 4]

[0040]

[Table 5]

[0041]

[Table 6]

As shown in Tables 1 to 6, when a base coat paint containing non-leafing type aluminum (Tables 1 to 3) or leafing type aluminum (Tables 4 to 6) of the product of the present invention was used, the aluminum flake pigment The formed coating film exhibited excellent glitter, denseness, and flip-flop feeling even in a wide range of contents up to a high concentration.

Examples 39 and 40 Bright metallic (silver) paints and solid paints having the following compositions were obtained. Next, in the same manner as in Example 6 or 2, respectively, except that the metallic paint (Example 39) or the solid paint (15 μm in thickness; (Example 40)) was used as the base paint instead of the clear paint. went. Table 7 shows the results.

(Metallic paint composition) In the clear paint used as the base paint in Example 1, Alpaste 7680NS (manufactured by Toyo Aluminum Co., Ltd.) as a non-leafing type aluminum was contained at 10% by weight of the total solids in the coating film. A metallic paint was prepared by blending so as to be as follows. (Solid paint composition) CR-97 titanium (manufactured by Ishihara Sangyo Co., Ltd.) as a titanium pigment was added to the clear paint used as the base paint in Example 1 so that the paint film contained 50% by weight of the total solids. A white enamel was prepared by blending.

[0045]

[Table 7]

Example 41 A water-based paint (Super Nix M200; manufactured by Nippon Paint Co.) was used in place of the base paint (clear paint) and the flake pigment of the base coat paint, and the drying method of the base coat paint was set to 80 ° × 5 minutes. The procedure was performed in the same manner as in Example 2 except for the above. Table 8 shows the results.

Example 42 A water-based paint (Super Nicks M200; manufactured by Nippon Paint Co.) was used instead of the base paint (clear paint) and the flake pigment of the base coat paint, and the drying method of the base coat film was changed to 140 ° C. × 15 minutes. The procedure was performed in the same manner as in Example 20 except for the above. Table 8 shows the results.

[0048]

[Table 8]

Example 43 A base coat paint (containing mica or the like) having the following composition was prepared, and performed in the same manner as in Example 2. Table 9 shows the results. (Basecoat paint (containing mica etc.)) Alpaste 7680NS (manufactured by Toyo Aluminum Co., Ltd.) as a non-leafing type aluminum pigment was added to the clear paint used as the base paint in Example 1, 10% by weight of the total solids in the coating film. And Iriodin 103W as a mica pigment.
II (manufactured by Merck) at 10% by weight of the total solids in the coating film
And further added Shanin Blue G-314 (manufactured by Sanyo Dyeing Co., Ltd.) as a color pigment in the coating to obtain a solid content of 3%.
% By weight to prepare a coating composition with a combination of blue metallic mica.

Example 44 A mixture of 10% of non-leafing type aluminum and 10% of leafing type aluminum pigment was used instead of 20% of leafing type aluminum, and the method of drying the base coat film was 140 ° C. × 15.
The procedure was performed in the same manner as in Example 20, except that the time was changed to minutes. Table 9 shows the results.

[0051]

[Table 9]

Examples 45-47 Instead of the non-leafing type aluminum of Example 2, Table 10
Example 2 was carried out in the same manner as in Example 2 except that the flake pigments shown in Table 2 were used. Table 10 shows the results.

[0053]

[Table 10]

As shown in Tables 7 to 10, whether the undercoating was a metallic coating or a solid coating, or the undercoating and basecoat coatings were water-based coatings,
Regardless of whether mica and a coloring pigment are contained in the base coat coating film, a mixture of non-leafing and leafing types is used for the aluminum flake pigment, and a glittering pigment other than the aluminum flake pigment is used, any of the formed coatings is used. The film exhibited good glitter, fineness and flip-flop feeling.

Examples 48 to 55 As shown in Tables 11 to 13, the clear top coating was
Examples 3, 4, 9, 16, 21, 2 except for the first coating
Performed in the same manner as in 2, 23 and 24. However, Example 5
Sample No. 2 was carried out in the same manner as in Example 21, except that the drying method of the base coat film was changed to 140 ° C. for 15 minutes. The results are shown in Tables 11 to 1.
3 is shown.

[0056]

[Table 11]

[0057]

[Table 12]

[0058]

[Table 13]

As shown in Tables 11 to 13, when the content of the brilliant pigment is large, the surface glossiness is improved by forming two layers of the top clear coating film.

Comparative Examples 1 to 8 Examples 1 to 14 and 22 except that the conditions shown in Table 14 were used.
Or 35. The results are shown in Table 14.

[0061]

[Table 14]

From Table 14, it can be seen that in the case of a coating system in which the solid content of the coating film is out of the range of the present invention, regardless of the concentration of the glittering pigment,
In any case, the glittering feeling, the dense feeling, or the flip-flop feeling were inferior.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Eizou Niimi, Inventor Tokyo Paint Works Co., Ltd. 4-1-1-15 Minamishinagawa, Shinagawa-ku, Tokyo (72) Inventor Akiyuki Yoneda Off Niho, Minami-ku, Hiroshima-shi, Hiroshima 1-30, Nippon Paint Co., Ltd. Hiroshima Office

Claims (9)

[Claims] When a base paint containing a brilliant pigment is applied on a substrate to be coated, the total solid content of the base coat paint is 5 to 25% by weight at the time of application. The brilliant pigment concentration is 5 to 5% of the total solids in the base coat film.
A method for forming a glittering coating film, characterized in that the coating is performed at 100% by weight. 2. The base coat paint according to claim 1, wherein the total solid content is 5 to 10% by weight at the time of application, and the glitter pigment is 15 to 80% by weight of the total solid content in the base coat film. The method for forming a brilliant coating film. 3. The method according to claim 1, further comprising:
3. The method for forming a glittering coating film according to claim 1, wherein at least one clear top coating film is formed. 4. The base coat paint according to claim 1, wherein the total solid content of the base coat paint is 5 to 10% by weight at the time of application, and the glitter pigment is 30 to 80% by weight of the total solid content in the base coat coating film. At least 2 clear top coatings
The method for forming a glittering coating film according to claim 1, wherein a layer is formed. 5. The brilliancy according to claim 1, wherein the substrate to be coated has a base coating film selected from a clear coating film, a solid coating film and a brilliant coating film. Coating method. 6. The brilliant pigment according to claim 1, wherein the brilliant pigment is at least one member selected from leafing type aluminum flake pigments, non-leafing type aluminum flake pigments and flake pigments other than aluminum flake pigments. The method for forming a glittering coating film according to claim 1. 7. The method for forming a glittering coating film according to claim 5, wherein a base coat coating film is applied on the base coating film on a wet-on-wet basis. 8. The base coat film of 80 to 100
The method for forming a glittering coating film according to any one of claims 3 to 7, wherein at least one clear coating film is formed after preheating at 1C for 1 to 10 minutes. 9. A coated article coated by the glittering coating film forming method according to claim 1.