KR100678760B1 - Multicolor coating compositions and method of forming patterned surface - Google Patents

Abstract

Provided are a practical underwater water-based multicolor paint capable of forming a coating film with excellent smoothness and a coating method thereof. An underwater-in-water multicolor coating composition comprising at least one flat colored gel particle dispersed in a matte transparent paint containing an aqueous resin and a extender pigment having a refractive index of 1.4 to 1.7; Reactive compound which can disperse | distribute at least 1 type of flat colored gel particle in the transparent coating containing aqueous resin, and the said flat colored gel particle can react in presence of aqueous resin (a), a coloring pigment (b), water (c), and water. The water-in-water multi-color coating composition, characterized in that the gelation derived from (d); And forming a top coat layer on the substrate of the building by forming a top coat layer with a colored matt paint coat, followed by roller coating or brush coating the water-in-water multicolor paint composition.

Multicolor, Underwater, Paint, Paint, Matte

Description

TECHNICAL FIELD [Formation of multi-color coating composition and coating film surface]

The present invention relates to a novel water-in-water multicolor paint composition.

Conventionally, when painting interior and exterior surfaces of buildings such as walls, ceilings, doors, and the like, paints generally called flat paints are often used. As a flat paint, the paint prescribed | regulated to "synthetic resin emulsion paint" of JIS K5663 is typical. Such a flat paint can express a variety of colors by adjusting the color using a pigment. However, the color obtained by the flat paint is a single color, and a pattern in which a plurality of colors are mixed cannot be expressed by one coating.

On the other hand, various coating compositions which can express several colors by one coating are proposed. The idea of the composition of such a coating starts with the patent of P. BUSCH and J.C. By ZOLA, it is represented by the oil-in-water type multicolor paint used by US Pat. No. 2591904 and Japanese Patent No. 231698. Since then, various multi-color paints have been developed by domestic and foreign paint technicians, but they are i) oil-in-water type (0 / W type), ii) water-in-oil type (W / 0 type), iii) oil-in-water type (0 / Type 0) and iv) underwater type (W / W type).

For example, Japanese Unexamined Patent Application Publication No. 9-302281 discloses a multicolor paint containing enamel dispersion particles formed by dispersing an enamel obtained by using a copolymer containing a crosslinkable functional group in an aqueous dispersion medium and then blending a crosslinking component. It is described. However, the paint described in the above publication is an oil-in-water multicolor paint containing an organic solvent in enamel dispersed particles, and a solvent odor occurs during drying. In addition, since the enamel dispersion particle | grains of the said publication have a high hardness and a substantially spherical three-dimensional shape, it is difficult to form a smooth coating film.

The water-in-water multicolor paint in which the aqueous particles are dispersed in the aqueous medium can greatly improve the problem of odor generation as described above. As such an underwater water-type multicolor paint, the paint of Unexamined-Japanese-Patent No. 2651533 is mentioned, for example. The coating material of the said publication contains flaky gel colored particle | grains manufactured from soda alginate, polyvinyl alcohol, etc., and hollow particle | grains, such as a hollow resin foam and an inorganic balloon. When the coating material of the said publication is used, a comparatively smooth coating film can also be formed. However, in the coating material of the said publication, since a hollow particle has a light scattering property, a formation coating film becomes white and finishes lacking in screening property.

As another submersible multicolor paint, the paint of Unexamined-Japanese-Patent No. 2525197 is mentioned, for example.

However, the colored particle described in the said publication is an encapsulated particle, and the particle | grain contains the liquid aqueous coating material. Therefore, depending on the coating conditions, the capsule may be broken and the desired shape may not be formed. In particular, when roller coating or brush coating is performed, problems such as color bleeding from particles tend to occur. Moreover, since the inside of a capsule is a liquid state, the coating material of the said publication also has a problem that the shape of the coating film formed by the temperature and coating pressure at the time of coating changes easily.

This invention is made | formed in view of such a point, and an object of this invention is to obtain the practical underwater-water multicolor paint and the coating method which can form the coating film excellent in smoothness.

The 1st subject of this invention is obtaining the water-in-water multicolored coating which is excellent in smoothness and lightness, and can form a matte coating film.

The 2nd subject of this invention is obtaining the water-in-water multicolor paint which can form a constant smooth multicolor, even if coating conditions, such as a coating mechanism and coating temperature, change.

The 3rd subject of this invention is obtaining the coating method which can form a colorful and smooth coating film surface by roller coating or brush coating.

In order to solve these problems, the inventors have conducted numerous experiments.

As a result, it was found that the first problem can be solved by dispersing flat colored gel particles in a matte transparent paint containing an aqueous resin and a extender pigment having a refractive index of 1.4 to 1.7.

In addition, as the flat colored gel particles, gelling derived from a reactive compound (d) capable of reacting in the presence of an aqueous resin (a), a colored pigment (b), water (c), and water solves the second problem. I found it possible.

That is, this invention has the following characteristics.

1. A water-in-water multicolor comprising a matte transparent paint containing an aqueous resin and a sieving pigment with a refractive index of 1.4-1.7 and at least one flat colored gel particle dispersed in the paint. Paint compositions.

2. A water-in-water multicolor coating composition comprising an aqueous resin and a matte transparent paint containing an extender pigment having a refractive index of 1.4 to 0.7, and at least one flat colored gel particle dispersed in the paint, wherein the flat colored gel particles are aqueous. A water-in-water type multicolor coating composition, which is a gelled product made of a resin (a), a colored pigment (b), water (c), and a reactive compound (d) capable of reacting in the presence of water.

3. A water-in-water multicolor coating composition comprising an aqueous resin and a matte transparent paint containing an extender pigment having a refractive index of 1.4 to 0.7, and at least one flat colored gel particle dispersed in the paint, wherein the flat colored gel particles are aqueous. A water-in-water multicolor coating composition, which is gelled by a mixture of an aqueous paint containing a resin (a), a colored pigment (b) and water (c) and a reactive compound (d) which can react in the presence of water.

4. A water-in-water multicolor coating composition comprising a transparent paint containing an aqueous resin and one or more flat colored gel particles dispersed in the paint, wherein the flat colored gel particles are an aqueous resin (a), a colored pigment (b), A water-in-water type multicolor coating composition, which is a gelled product made of water (c) and a reactive compound (d) capable of reacting in the presence of water.

5. A water-in-water multicolored coating composition comprising a transparent paint containing an aqueous resin and at least one flat colored gel particle dispersed in the paint, wherein the flat colored gel particles comprise an aqueous resin (a), a colored pigment (b) and A water-in-water type multicolor coating composition, which is gelled by a mixture of an aqueous paint containing water (c) and a reactive compound (d) capable of reacting in the presence of water.

6. Component (a) is an aqueous resin (a-1) having a reactive functional group, and component (d) is 2-5 which is a reactive compound (d-1) capable of reacting with component (a-1) in the presence of water. The water-in-water multicolored coating composition according to any one of the above.

7. The water-in-water multicolor coating composition according to any one of 2 to 5, wherein the component (d) is a reactive compound (d-2) capable of self-condensing in the presence of water.

8. A water-in-water multicolored coating composition comprising an aqueous resin and a matte transparent paint containing an extender pigment having a refractive index of 1.4 to 1.7 and at least one flat colored gel particle dispersed in the paint, wherein the flat colored gel particles are reactive. The gelate obtained by mixing the reactive compound (d) which can react in presence of water with the aqueous paint containing the aqueous resin (a-1) which has a functional group, a coloring pigment (b), and water (c) is a flat granular form in an aqueous dispersion medium. A water-in-water multicolored coating composition obtained by dispersing into a mixture and obtaining a reactive compound (d-1) capable of reacting with the component (a-1) in the presence of water.

9. A water-in-water multicolor coating composition comprising a transparent paint containing an aqueous resin and at least one flat colored gel particle dispersed in the paint, wherein the flat colored gel particle has a reactive functional group (a-1), A gelate obtained by mixing a reactive pigment (d) capable of reacting in the presence of water with an aqueous paint containing a colored pigment (b) and water (c) is dispersed in an aqueous dispersion medium in the form of flat particles, and in the presence of water (a- 1) A water-in-water multicolor coating composition obtained by mixing a component and a reactive compound (d-1) which can be reacted.

10. The water-in-water multicolor coating composition according to any one of 8 to 9, wherein the component (d) is a reactive compound (d-1) capable of reacting with the component (a-1) in the presence of water.

11. The water-in-water multicolor coating composition according to any one of 8 to 9, wherein the component (d) is a reactive compound (d-2) capable of self-condensing in the presence of water.

12. On the base material of a building, a undercoat is formed with a coloring matte undercoat,

Forming a top coat layer by roller-coating or brush-coating the water-in-water multicolor coating composition by any one of 1-11, and forming the top coat layer.

According to the present invention, a coating film excellent in smoothness can be formed, and a practical underwater water-based multicolor paint can be obtained.

Specifically, a flat colored gel particle can be dispersed in a matte transparent paint containing an aqueous resin and a extender pigment having a refractive index of 1.4 to 1.7 to obtain an underwater-in-water multicolored paint which can form a matte coating film having excellent smoothness and striation.

In addition, as flat colored gel particles, a gelled product made of an aqueous resin (a), a colored pigment (b), water (c) and a reactive compound (d) capable of reacting in the presence of water is employed to provide a coating mechanism, coating temperature, and the like. It is possible to obtain a submersible multicolor paint which can form a uniform smooth multicolor even when the coating conditions of the film are varied.

Moreover, according to this invention, a colorful and smooth coating film surface can be formed by roller-coating or brush-coating the said water-in-water multicolor paint.

Best Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with an Example.

(Transparent paint)

In the composition of the present invention, a transparent paint is used as the dispersion medium. This transparent paint contains aqueous resin as an essential component. The degree of transparency can visually recognize a flat colored gel particle, and should just be a grade which does not lose screening property.

The aqueous resin in a transparent coating material is a component which plays the role which fixes colored gel particle at the time of coating film formation. As such an aqueous resin, a water dispersible resin and / or a water-soluble resin can be used. Examples of the resin include acrylic resins, urethane resins, vinyl acetate resins, silicone resins, fluorine resins, acrylic vinyl acetate resins, acrylic urethane resins, acrylic silicone resins, polyvinyl alcohols, cellulose derivatives, and the like. In addition, these 1 type, or 2 or more types can also be used.

Such an aqueous resin may have a property of causing a crosslinking reaction after coating film formation. If there is such crosslinking reactivity, coating film properties, such as water resistance, weather resistance, contamination resistance, and chemical resistance, can be improved.

When forming a matte coating film, a matte transparent paint is very suitable as a dispersion medium. This matte transparent paint can be obtained by mixing the extender having a refractive index of 1.4 to 1.7 with the transparent paint. By using such a extender pigment in the matte transparent paint, a matte effect can be obtained while maintaining the clarity of the coating film. Examples of extender pigments that can be used include heavy calcium carbonate, limestone, mild calcium carbonate, white carbon, talc, kaolin, mud, clay, china mud, diatomaceous earth, barite powder, barium sulfate, precipitated barium sulfate, Silica sand, silica powder, quartz powder, resin powder, etc. (except hollow goods), These can also be used individually or in combination of 2 or more types. The refractive index is a value measured using an Abbe's refractometer.

The average particle diameter of the extender pigment is usually 20 µm or less, preferably 0.1 to 15 µm, and more preferably 0.5 to 8 µm. By using the extender pigment of such an average particle diameter, the selectivity of a coating film can be improved more. In addition, the average particle diameter here means 50% particle diameter measured by the centrifugal sedimentation type particle size distribution measuring apparatus.

The mixing ratio of the extender pigments in the matte transparent paint is usually 5 to 200 parts by weight, preferably 10 to 100 parts by weight based on 100 parts by weight of the solid content of the aqueous resin.

In addition, the term "matte" in the present invention generally includes not only matte, but also referred to as 3-part gloss, 5-part gloss, and the like. Specifically, in the present invention, the gloss can be defined by the mirror surface glossiness. The mirror surface glossiness in the above-mentioned matte transparent paint is 40 or less normally, Preferably it is 20 or less, More preferably, it is 10 or less. The glossiness of a matte transparent paint can be adjusted suitably by the kind, extender diameter, mixing ratio, etc. of the extender pigment used for a matte transparent paint.

Here, mirror surface glossiness is a value measured according to 7.6 "mirror surface glossiness" of JISK5400. Specifically, paint is applied to one surface of the glass plate using a B-type film applicator with a gap of 150 µm, the drawing is placed horizontally, dried for 48 hours at a temperature of 200 ° C. and a relative humidity of 65% or less, and the mirror surface gloss. It is a value obtained by measuring a degree (measurement angle 60 degree).

(Flat colored gel particles)

In the composition of the present invention, flat colored gel particles (hereinafter only referred to as "colored particles") are dispersed in the above-described transparent paint. In this invention, since the shape of colored particle is flat, a smooth coating film can be formed. In addition, "flat equilibrium" as used in the present invention means a state in which the ratio of the short diameter to the thickness is larger than one. Although the short diameter and long diameter of a colored particle are not specifically limited, Usually, it is 0.1-10 mm, Preferably it is 0.1-5 mm, More preferably, it is 0.7-2 mm.

Although at least 1 type of colored particles should be included, in order to express a colorful coating film, it is preferable that 2 or more types of colored particles from which a color differs are contained. The color of the colored particles can be appropriately set in accordance with the desired shape. As colored particles, transparent particles may be included.

The mixing ratio of the colored particles is usually 50 to 1000 parts by weight, preferably 100 to 900 parts by weight, and more preferably 200 to 800 parts by weight with respect to 100 parts by weight of the solid content of the aqueous resin contained in the transparent paint.

In the composition of the present invention, as the colored particles, a gelled product made of an aqueous resin (a), a colored pigment (b), water (c) and a reactive compound (d) capable of reacting in the presence of water is preferable. Such colored particles have moderate flexibility and strength, and can form a constant multicolor even when coating conditions such as a coating mechanism and coating temperature are varied. In addition, even when spray coating or roller coating or brush coating is performed, occurrence of bleeding due to pigment from colored particles can be prevented. Therefore, the water-in-water multicolor paint useful also for roller coating or brush painting can be obtained.

Specifically, such colored particles are mixed with an aqueous paint containing an aqueous resin (a), a colored pigment (b) and water (c), and a reactive compound (d) capable of reacting in the presence of water to gelate the aqueous paint. This gelation can be obtained by dispersing in a transparent paint.

The aqueous resin (hereinafter referred to as "(a) component") in the aqueous coating has a function as a colorant, and a water-dispersible resin and / or a water-soluble resin can be used. Specifically, for example, acrylic resin emulsion, urethane resin emulsion, vinyl acetate resin emulsion, silicone resin emulsion, fluorine resin emulsion, acrylic vinyl acetate resin emulsion, acrylic urethane resin emulsion, acrylic silicone resin emulsion, polyvinyl vinyl emulsion Alcohols, poly (meth) acrylic acids, polyethylene oxides, water soluble urethanes, bio gums, galactomannan derivatives, alginic acid or derivatives thereof, cellulose derivatives, gelatin, casein, albumin and the like, or oxidation, methylation, carboxymethylation, hydrides thereof And chemically modified by hydroxyethylation, hydroxypropylation, sulfation, phosphorylation, cationization, and the like, and one or two or more thereof may be used.

The mixing amount of the component (a) in the aqueous coating is usually 3 to 95% by weight, preferably 5 to 80% by weight.

As the component (a), an aqueous resin having a reactive functional group (hereinafter referred to as "(a-1)") can be used. Such a component (a-1) can be used suitably in combination with the component (d-1) described later.

As a reactive functional group of (a-1) component, a carboxyl group, an epoxy group, a hydroxyl group, a carbonyl group, a hydrazino group, an amino group, an alkoxy silyl group, etc. are mentioned, for example.

As a coloring pigment (henceforth "(b) component"), what mix | blends with a paint can generally be used. For example, titanium oxide, zinc oxide, carbon black, lamp black, bone black, graphite, black iron oxide, copper chromium black, cobalt black, copper manganese black, bengara, molybdate orange, permanent red, permanent carmine, Anthraquinone Red, Perylene Red, Quinacridone Red, Yellow Iron Oxide, Titanium Yellow, First Yellow, Ventimidazoron Yellow, Chrome Green, Cobalt Green, Phthalocyan Green, Ultramarine Blue, Royal Blue, Cobalt Blue, Phthalocyan Blue , Quinacridone violet, dioxadine violet, aluminum pigment, pearl pigment, and the like, and one or two or more of these may be used.

The mixing amount of the component (b) in the aqueous coating is usually 0.01 to 50% by weight, preferably 0.5 to 40% by weight.

As a dispersing agent of (b) component, a polymeric dispersing agent is very suitable at the point which can improve the color stability of colored particle | grains, especially the color stability at the time of high temperature storage.

The molecular weight of such a polymer dispersing agent is 2000-100000 normally, Preferably it is 5000-50000. Specifically, anionic polymer dispersants, nonionic polymer dispersants, cationic polymer dispersants, amphoteric polymer dispersants, and the like may be used. One or two or more of these may be used. Of these, cationic polymer dispersants are particularly preferred in the present invention.

It is preferable that it is 3-15, and, as for HLB of a polymer dispersing agent, it is more preferable that it is 5-10. When the polymer dispersing agent which has such HLB is used, the color stability of colored particle can be improved further. In addition, HLB is an abbreviation of hydrophilic-lipophilic balance, and shows numerically the ratio of the hydrophilicity and lipophilic intensity | strength of an amphiphilic substance.

The reactive compound (referred to as "(d) component" hereafter) which can react in presence of water is a component which gelatinizes the aqueous paint containing the above-mentioned (a)-(c) component.

In the present invention, when the component (a-1) is used as the component (a), as the component (d), a reactive compound capable of reacting with the component (a-1) in the presence of water (hereinafter referred to as "(d-1) component) Is very suitable. The combination of the component (a-1) and the reactive functional group in the component (d-1) is not particularly limited as long as gelation is possible. For example, a carboxyl group, a carbonimide group, a carboxyl group, an epoxy group, a carboxyl group and an aziridine group And a combination of a carboxyl group, an oxazoline group, a hydroxyl group, an isocyanate group, a carbonyl group, a hydrazino group, an epoxy group, a hydrazino group, an epoxy group, an amino group, an alkoxysilyl group, and an alkoxysilyl group. These combinations can also be used by 1 type, or 2 or more types.

As a specific example of a component (d-1), it is a compound containing a carbodiimide group, for example, Unexamined-Japanese-Patent No. 10-60272, Unexamined-Japanese-Patent No. 10-316930, Unexamined-Japanese-Patent No. 11-60667, etc. As described; Examples of the compound containing an epoxy group include polyethylene glycol diglycidyl ether, polyhydroxyalkane polyglycidyl ether, diglycerol polyglycidyl ether, sorbitol polyglycidyl ether and the like; As a compound containing an aziridine group, 2,2-bishydroxymethylbutanol-tris [3- (1-aziridinyl) propionate], 1,6-hexamethylenediethyleneurea, diphenylmethane-bis- 4,4'-N, N'-diethyleneeneurea etc .; As a compound containing an oxazoline group, 2-vinyl-2- oxazoline, 2-vinyl-4-methyl-2- oxazoline, 2-vinyl- Resins obtained by copolymerizing polymerizable oxazoline compounds such as 5-methyl-2-oxazoline and 2-isopropenyl-2-oxazoline with monomers copolymerizable with the above compounds; As a compound containing an isocyanate group, Tetramethylene diisocyanate, hexamethylene diisocyanate, isopron diisocyanate, these derivatives, etc .; Examples of the compound containing a hydrazino group include malonic acid dihydrazide, succinic acid dihydrazide, glutaric acid dihydrazide, adipic acid dihydrazide, sebacic acid dihydrazide, maleic acid dihydrazide, and the like.

As the component (d), a reactive compound capable of self-condensing in the presence of water (hereinafter referred to as "(d-2) component") can also be used. In the case of using the component (d-2), the component (a) is not particularly limited and may be an aqueous water other than the component (a-1).

As the component (d-2), a hydrolysis-condensation-type reactive compound containing an alkoxysilyl group is very suitable. As such a hydrolysis-type reactive compound, For example, tetramethoxysilane, tetraethoxysilane, tetran-propoxysilane, tetraisopropoxysilane, tetran-butoxysilane, tetraisobutoxysilane, tetrasec -Butoxysilane, tetrat-butoxysilane, tetraphenoxysilane, dimethoxydiethoxysilane, methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, petyl Limethoxysilane, dimethyldimethoxysilane, diethyldimethoxysilane, diphenyldimethoxysilane, γ-glycithoxypropyltrimethoxysilane, γ-glycithoxypropylmethyldimethoxysilane, γ-mercaptopropyltrimethoxy Oxysilane, γ-aminopropyltriethoxysilane, N- (βaminoethyl) -γ-aminopropyltrimethoxysilane, N- (βaminoethyl) -γ-aminopropylmethyldimethoxysilane, γ-methacryl Roxypropyltrimethoxysilane, γ-methacryl When the profile there may be mentioned such as a silane, or a condensation product with methyl dimethoxysilane, methyltrichlorosilane. Moreover, the alkoxysilane compound containing a carboxyl group, a hydroxyl group, a sulfone group, an oxy alkylene group, etc. can be used. These can also be used individually or in combination of 2 or more types.

Among these, it is preferable to use the tetraalkoxysilane compound in this invention. The tetraalkoxysilane compound is a compound represented by RO- (Si (OR) ₂ -O) _n -R (wherein R is an alkyl group and n≥1). In particular, in the present invention, a tetraalkoxysilane compound in which an alkyl group having 1 to 2 carbon atoms and an alkyl group having 3 or more carbon atoms (preferably 3 to 12) is mixed is most preferable.

The mixing amount of the component (d) is usually 0.1 to 10% by weight, preferably 0.3 to 6% by weight with respect to the aqueous paint. When there is little (d) component, since gel formation ability is not enough, there exists a possibility that a colored particle may be destroyed at the time of coating (especially at the time of roller coating or brush coating). When there are many (d) components, colored particle becomes hard and it is difficult to obtain a smooth coating film.

In order to accelerate the reaction of the component (d), the catalyst of the component (d) may be mixed as necessary. As such a catalyst, For example, inorganic acids, such as hydrochloric acid, a sulfuric acid, nitric acid, phosphoric acid; Organic acids such as acetic acid, benzene sulfonic acid and toluene sulfonic acid; Alkali catalysts such as sodium hydroxide, potassium hydroxide, ammonia and amine compounds; Organic tin compounds such as dibutyltin dilaurate, dibutyltin dioctate and dibutyltin diacetate; Organoaluminum compounds such as aluminum tris (acetylacetate) and aluminum monoacetylacetate bis (ethylacetate acetate); Organic titanium compounds such as titanium tetrakis (acetylacetonate); Organic zirconium compounds such as zirconium tetrakis (cetylacetonate); Boron compounds, such as a boric acid, etc. are mentioned.

(Manufacturing method of multicolor paint)

In the production of the composition of the present invention, first, the gelling is prepared by mixing the component (d) with an aqueous coating material containing the components (a) to (c). In addition, the gelation in this invention includes all the thing in which the gelation reaction was started by mixing of (d) component, regardless of the grade of progress of a gelation reaction.

The pH of the aqueous paint forming the gelation is not particularly limited as long as the gelling reaction can be started, but is usually 7 to 14. When the pH of the aqueous coating material is set at such a value, suitable reactivity can be obtained especially when (d-2) is used as the component (d).

Moreover, although mixing of an aqueous coating material and (d) component may be performed normally at normal temperature, you may advance at the elevated temperature in order to accelerate | stimulate a gelation reaction.

Subsequently, this gelate is added to an aqueous dispersion medium to disperse | distribute to flat granular form. The timing for adding the gelled product to the aqueous dispersion medium can be appropriately selected, but may be added immediately after mixing the aqueous coating material and the component (d), or may be added after being left for a certain time.

Here, part or all of the transparent coating material can be used as an aqueous dispersion medium. When the gelling agent is added to the aqueous dispersion medium, the aqueous resin does not have to be included in the aqueous dispersion medium, and may be mixed in the subsequent step.

To make the shape of the colored particles formed flat, the shape of the stirring blade, the size and position of the stirring blade with respect to the stirring vessel, the rotation speed of the stirring blade, the viscosity of the aqueous paint, the addition method of the gelling agent, the viscosity of the transparent paint, etc. You can select and adjust as appropriate. The particle diameter of colored particles can also be adjusted by the same method.

In this invention, since the shape of a colored particle is flat, the coating film excellent in smoothness can be formed. Although the short diameter and long diameter of a colored particle are not specifically limited, Usually, 0.01-10 mm, Preferably it is 0.1-5 mm, More preferably, it is 0.7-2 mm.

In order to disperse a gelate in an aqueous dispersion medium, a dispersion stabilizer can be used. Examples of such dispersion stabilizers include magnesium salts, calcium salts, barium salts, aluminum salts, sodium salts, potassium salts, borate salts and the like.

In addition, when the component which promotes reaction of the unreacted part in colored particle is mixed with an aqueous dispersion medium, gelation can also be advanced more reliably.

PH of an aqueous dispersion medium is 7-10 normally, Preferably it is 7-9. When using the component (d-2) especially, it is preferable to set the pH of an aqueous dispersion medium to such a range.

In the present invention, (d-1) can be mixed after the gelled dispersion is dispersed in the aqueous dispersion medium. In this case, the component (a-1) is used as the component (a).

By such a process, (a-1) component and (d-1) component react in a colored particle surface layer, and the suitability to roller coating and brush painting of a multicolor paint can be improved further. It is also possible to improve the coating film properties such as weather resistance and water resistance.

The mixing amount of the component (d-1) is usually about 0.1 to 10% by weight based on the colored particles. The mixing of the component (d-1) may be carried out at ordinary temperature, but may be carried out if necessary.

In order to obtain the composition of the present invention comprising two or more colored particles having different colors, for example,

A method of preparing a coating material in which colored particles of a single color are dispersed, and then mixing them; or

A method of dispersing two or more kinds of gelates having different colors by adding them to the dispersion medium simultaneously or sequentially;

What is necessary is just to employ | adopt such a method.

In the composition of this invention, you may mix colored particles other than a flat colored gel particle. Examples of such colored particles include natural stone pulverized products, colored aggregates, plastic pieces, rubber pieces, metal pieces, inorganic mineral pieces, and the like.

In the composition of this invention, well-known paint additives other than those mentioned above can also be used suitably. Examples of such additives include pigment dispersants, antifoaming agents, thickeners, ultraviolet absorbers, antioxidants, flavoring agents, preservatives, film forming agents, and cryoprotectants. Moreover, a coloring pigment can also be added to a transparent paint in the range which does not impair the selectivity of a coating film. A extender pigment or the like can also be used for the aqueous paint forming the colored particles.

(Painting method)

The composition of the present invention can be applied to various applications, such as for construction, building materials, civil engineering, woodworking, plastic products, metal products, and nonferrous metal products. Specifically, it can be used as surface cosmetic material of various base materials, such as concrete, a mortar, a siding board, an extrusion molded board, a gypsum board, a pearlite board, a plywood, a plastic board, a metal plate, glass, a magnetic tile. The surface of these substrates may have been subjected to any surface treatment (for example, a sealer, a spacer, a filler, etc.), may have already been formed with a coating film, or may have a wallpaper.

In this invention, it is preferable to form a undercoat layer by coloring matte undercoat (henceforth only a "undercoat") before coating of a multicolor coating composition. Such a undercoat layer has fine unevenness | corrugation about a micrometer numerical value on the surface. This fine unevenness improves the coating workability of the multicolor paint (particularly, the coating workability at the time of roller coating or brush coating), and can form a uniform, uneven coating film. What is necessary is just the grade which can hide a base material, as the grade of coloring in undercoat paint.

Specifically, the glossiness of the undercoat paint in the present invention can be defined by its mirror surface glossiness. The mirror surface glossiness of the undercoat is usually 40 or less, preferably 20 or less, and more preferably 10 or less. When the mirror surface glossiness of a paint coat is high, it becomes difficult to coat a paint coat uniformly. The glossiness of the undercoat can be appropriately adjusted depending on the kind of the extender pigment described below, the particle diameter, the mixing ratio and the like.

The undercoat can be produced by mixing an aqueous resin, a colored pigment, and an extender pigment.

As the aqueous resin, a water dispersible resin and / or a water-soluble resin can be used. Examples of the resin include acrylic resins, urethane resins, vinyl nitrate resins, silicone resins, fluorine resins, acrylic vinyl nitrate resins, acrylic urethane resins, acrylic silicone resins, polyvinyl alcohols, cellulose derivatives, and the like. In addition, these 1 type, or 2 or more types can also be used.

Such water-dispersible resin or water-soluble resin may cause crosslinking reaction after coating film formation. Use of such a crosslinking reactivity can improve the coating film properties such as water resistance and adhesion. Moreover, when cationic aqueous resin is used, when the base material contains oil, jin, etc., it can be prevented from seeping out.

As a coloring pigment, for example, titanium oxide, zinc oxide, carbon black, lamp black, bone black, graphite, black iron oxide, copper chromium black, cobalt black, copper manganese black, bengal, molybdate orange, permanent red, Permanent Carmine, Anthraquinone Red, Perylene Red, Quinacridone Red, Yellow Iron Oxide, Titanium Yellow, First Yellow, Ventimidazoron Yellow, Chrome Green, Cobalt Green, Phthalocyan Green, Ultramarine Blue, Royal Blue, Cobalt Blue, F Tallocyan blue, quinacridone violet, dioxadine violet, aluminum pigment, pearl pigment, etc. are mentioned. The undercoat can be colored in a desired color by using one kind or two or more kinds of these coloring pigments.

As the extender pigment, for example, heavy calcium carbonate, limestone, mild calcium carbonate, white carbon, talc, kaolin, mud, clay, china mud, diatomaceous earth, barite powder, barium sulfate, precipitated barium sulfate, silica sand, silicate Powder, quartz beads, resin beads, hollow balloons, and the like, and one or two or more of these may be used. The average particle diameter of the extender pigment is usually 0.1 to 500 µm, preferably 1 to 200 µm.

The mixing ratio of each component in the undercoat is 1 to 300 parts by weight (preferably 5 to 200 parts by weight) of the colored pigment and 5 to 300 parts by weight of the extender pigment (with respect to 100 parts by weight of solid content of the aqueous resin). It is preferably 10 to 200 parts by weight).

In the undercoat, in addition to the above-mentioned components, a well-known paint additive can also be used suitably. Examples of such additives include pigment dispersants, antifoaming agents, thickeners, ultraviolet absorbers, antioxidants, flavoring agents, preservatives, film forming agents and cryoprotectants.

The color of the undercoat is not particularly limited, but is preferably an index similar to at least one of the colored particles. When it is set to such a color, it can harmonize and can finish it outstandingly.

Rollers, brushes, trowels, sprays, and the like can be used for coating the undercoat, but when used indoors or the like, rollers or brushes are preferable in terms of coating workability and arrival properties. At the time of coating, it can also be diluted using water. The coating amount of the undercoat is usually 0.5 to 0.5 kg / m ² .

Although the drying after coating the undercoat is normally performed at normal temperature, it can also be heated. Drying time is 0.5 to 5 hours normally. After the undercoat is dried, the multicolor paint can be painted.

When painting a multi-color paint, various coating apparatuses, such as a spray, a roller, a brush, and a trowel, can be used. In particular, when a colored particle originates in (a)-(d) component, a roller or a brush is preferable.

If colored particle originates from (a)-(d) component, a uniform finish can also be obtained when using a different coating mechanism with respect to one to-be-painted surface. Therefore, even if it is repaired using a roller or a brush after painting with spray, it can be finished without discomfort.

At the time of coating, it can also be diluted using water. What is necessary is just to set the mixing amount of water suitably in consideration of the kind of coating mechanism, the condition of a coating base, the temperature at the time of coating, etc.

The coating amount of the composition of the present invention is usually 0.2 to 1.6 kg / m ² , preferably 0.3 to 1.2 kg / m ² . Moreover, what is necessary is just to perform drying after coating the composition of this invention at normal temperature, but can also heat. Drying time is 1 to 5 hours normally.

The top coat layer formed of the multicolor paint may be a continuous layer or a discontinuous layer. In particular, in the case where a colored matte paint is used as the undercoat layer, it is possible to form a coating film having no discomfort even if the top coat layer does not necessarily completely cover the undercoat layer.

An Example is shown below and the characteristic of this invention is made clear.

And the following raw materials were used in manufacture of paint.

Water-dispersible resin (A): Acrylic resin emulsion (styrene-methylmethacrylate-2-ethylhexyl acrylate copolymer, minimum film forming temperature of 3 degreeC, pH8.8, 50 weight% of solid content)

Water-dispersible resin (B): acrylic resin emulsion (styrene-methyl methacrylate-2-ethylhexyl acrylate copolymer, minimum film forming temperature 2 degreeC, pH6.2, solid content 50weight%)

Water-dispersible resin (C): A carboxyl group-containing acrylic resin emulsion (methyl methacrylate-butylacrylate-acrylic acid copolymer, minimum film forming temperature of 0 degreeC, pH8.2, 50 weight% of solid content)

Water dispersible resin (D): acrylic resin emulsion (styrene-butyl acrylate copolymer, minimum film forming temperature of 0 degreeC, 50 weight% of solid content)

Water-soluble resin (A): hydroxyethyl cellulose powder

Water-soluble resin (B): 3% by weight aqueous solution of galactomannan

Pigment (A): Heavy calcium carbonate (refractive index 1.50, average particle diameter 8 micrometers)

Pigment (B): silica powder (refractive index 1.55, average particle diameter 2 micrometers)

Pigment (C): Precipitated barium sulfate (refractive index 1.64, average particle diameter 4㎛)

Pigment (D): silica powder (refractive index 1.55, average particle diameter 50 micrometers)

Pigment (E): Zinc oxide (refractive index 2.01, average particle diameter 0.2 micrometer)

Pigment (F): silica powder (refractive index 1.55, average particle diameter 150 micrometers)

White pigment liquid (A): Titanium oxide 60% by weight dispersion (dispersant: carboxylic acid-based dispersant, molecular weight 1800)

White pigment liquid (B): Titanium oxide 60% by weight dispersion (dispersant: cationic polymer dispersant (alkylene oxide adduct of alkylamine, molecular weight 15000, HLB8))

Black pigment liquid (A): 15 weight% black iron oxide dispersion (dispersant: carboxylic acid-based dispersant, molecular weight 1800)

Black pigment liquid (B): Black iron oxide l5% by weight dispersion (dispersant: cationic polymer dispersant (alkylene oxide adduct of alkylamine, molecular weight 15000, HLB8))

Reactive compound (A): Butoxy modified product of tetramethoxysilane condensate

Reactive compound (B): tetramethoxysilane condensate

Reactive compound (C): 2,2-bishydroxymetalbutanol-tris [3- (1-aziridinyl) propionate]

PH regulator: Ammonia water

Antifoam: Silicone Antifoam

[Test Example 1]

(Production of multicolor paint)

Coating composition (1-A)

First, 200 parts by weight of the water-dispersible resin (A) was placed in the container, and 3 parts by weight of the water-soluble resin (A), 20 parts by weight of the pigment (A), 1 part by weight of the defoaming agent and water were stirred while rotating the stirring speed at 1800 rpm. 250 weight part was mixed uniformly and the transparent coating material (1-A) was manufactured. PH of this transparent coating material (1-A) was 8.0, and the mirror surface glossiness was 8.

Next, 90 weight part of water-dispersible resin (A) is put into another container, 180 weight part of water-soluble resins (B), 90 weight part of white pigment liquids, 5 weight part of antifoamers, and water, stirring the rotation speed of a stirring blade at 1800 rpm. 80 weight part and 5 weight part of reactive compounds (A) were mixed uniformly, and the white aqueous coating material (1-A) was produced. PH of this aqueous coating material (1-A) was 9.5.

To 474 parts by weight of the aforementioned transparent paint (1-A), 8 parts by weight of a 5% by weight aqueous solution of ammonium borate is added as a dispersion stabilizer, and the rotational speed of the stirring blade is uniformly mixed at 900 rpm. By gradually adding and dispersing 450 parts by weight of the coating (1-A), a coating composition (1-A) in which 0.8 to 1.2 mm of flat white particles were dispersed was obtained.

Coating composition (1-B)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-B) which 1.0-1.6 mm flat gray particle disperse | distributed was obtained. .

Coating composition (1-C)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-C) in which 0.8-1.2 mm flat black particles were disperse | distributed was obtained. .

Coating composition (1-D)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-D) in which the flat gray particle of 0.8-1.6 mm was disperse | distributed was obtained. .

Coating composition (1-E)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-E) which the 0.8-1.2 mm flat black particle disperse | distributed was obtained. .

Coating composition (1-F)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-F) which the 0.8-1.4 mm flat gray particle disperse | distributed was obtained. .

Coating composition (1-G)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-G) which the 0.8-1.2 mm flat black particle disperse | distributed was obtained. .

Coating composition (1-H)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-H) which 1.0-1.8 mm of flat gray particles disperse | distributed was obtained. .

Coating composition (1-I)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-I) which the 1.2-1.6 mm flat black particle disperse | distributed was obtained. .

Coating composition (1-J)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-J) in which the flat gray particle of 0.8-1.4 mm was disperse | distributed was obtained. .

Coating composition (1-K)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-K) in which 0.8-1.2 mm flat black particle was disperse | distributed was obtained. .

Coating composition (1-L)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-L) which 1.0-1.8 mm of flat gray particles disperse | distributed was obtained. .

Coating composition (1-M)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-M) which 1.0-1.6 mm flat black particle disperse | distributed was obtained. .

Coating composition (1-N)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-N) which 1.0-1.6 mm flat gray particle disperse | distributed was obtained. .

Coating composition (1-O)

Except having used each raw material in the mixing ratio shown in Table 1, the coating material was produced by the method similar to coating composition (1-A), and the coating composition (1-O) which the 0.8-1.4 mm flat black particle disperse | distributed was obtained. .

TABLE 1

(Example 1-1)

For a slate plate coated with a gray sealer in advance, a multicolored paint in which the coating composition (1-A) and the coating composition (1-B) were mixed in a weight ratio of 50:50 was used. After coating using the coating amount of 0.6kg / m ² , dried at room temperature for 24 hours, the coating film state was observed. In Example 1-1, white and gray were mixed, it was smooth, and the coating film with high sensibility could be formed. No abnormalities of the colored particles were observed.

(Example 1-2)

As the multicolored paint, Example 1-1 was used, except that the paint composition (1-A), the paint composition (1-B) and the paint composition (1-C) were mixed in a weight ratio of 80:10:10. I painted the same.

In Example 1-2, the coating film of white, gray, and black mixed, smooth, and a high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 1-3)

Coating was carried out similarly to Example 1-1 except having used the coating composition (1-D) and the coating composition (1-E) mixed in the weight ratio of 50:50 as a multicolor coating material.

In Example 1-3, gray and black were mixed, it was smooth, and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 1-4)

As a multi-color paint, it coat | covered like Example 1-1 except having used the coating composition which the coating composition (1-F) and the coating composition (1-G) mixed in the weight ratio of 50:50.

In Example 1-4, gray and black were mixed, it was smooth, and the coating film with high sensibility was able to be formed. However, gray and black bleeding occurred due to the colored particles.

(Example 1-5)

As a multi-color paint, it coat | covered like Example 1-1 except having used the coating composition in which the coating composition (1-H) and the coating composition (1-I) were mixed by the weight ratio of 50:50.

In Example 1-5, gray and black were mixed and the coating film with high sensibility was able to be formed. However, unevenness was outstanding compared with Example 1-1.

(Example 1-6)

As a multi-color coating material, it applied similarly to Example 1-1 except having used the coating composition which the coating composition (1-J) and the coating composition (1-K) mixed in the weight ratio of 50:50.

In Example 1-6, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. However, gray and black bleeding occurred due to the colored particles.

(Example 1-7)

As a multi-color paint, it coat | covered like Example 1-1 except having used the coating composition which the coating composition (1-L) and the coating composition (1-M) mixed in the weight ratio of 50:50.

In Example 1-7, gray and black were mixed and the smooth coating film could be formed. However, compared with Example 1-1, the finish was slightly inferior in screeniness.

(Reference Example 1-1)

As a multi-color paint, it coat | covered like Example 1-1 except having used the coating composition in which the coating composition (1-N) and the coating composition (1-O) were mixed by the weight ratio of 50:50.

In Reference Example 1-1, the entire coating film was whitened, and a coating film with high sensibility could not be formed.

[Test Example 2]

(Production of multicolor paint)

Coating composition (2-A)

First, 200 parts by weight of the water-dispersible resin (A) was placed in the container, and 4 parts by weight of the water-soluble resin (A), 35 parts by weight of the pigment (B), 1 part by weight of the antifoaming agent and water 380 while stirring the rotation speed of the stirring blade at 1800 rpm. The parts by weight were mixed uniformly to prepare a transparent paint (2-A). PH of this transparent paint (2-A) was 8.1 and mirror surface glossiness was 5.

Next, 85 weight part of water-dispersible resins (C) are put in another container, 250 weight part of water-soluble resins (B), 50 weight part of white pigment liquids (A), and black pigment liquid, stirring the rotation speed of a stirring blade at l800 rpm. (A) 50 weight part, 5 weight part of antifoamers, 50 weight part of water, and 3 weight part of reactive compounds (C) were mixed uniformly, and the white aqueous coating material (2-A) was produced. The pH of this aqueous paint (2-A) was 8.9.

To 620 parts by weight of the aforementioned transparent paint (2-A), 10 parts by weight of an aqueous solution of 5% by weight of ammonium borate is added as a dispersion stabilizer, and the rotational speed of the stirring blade is uniformly mixed at 900 rpm. 493 weight part of paints (2-A) were gradually added and dispersed, and the coating composition (2-A) in which the flat gray particle of 0.7-1.2 mm was disperse | distributed was obtained.

Coating composition (2-B)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-B) in which the flat black particle of 0.8-1.6 mm was disperse | distributed was obtained. .

Coating composition (2-C)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-C) in which 1.0-1.6 mm of flat gray particles were disperse | distributed was obtained. .

Coating composition (2-D)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-D) in which 0.8-1.4 mm flat black particle was disperse | distributed was obtained. .

Coating composition (2-E)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the same method as coating composition (2-A), and the coating composition (2-E) which 1.0-1.6 mm of flat gray particles disperse | distributed was obtained. .

Coating composition (2-F)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-F) in which 0.8-1.5 mm flat black particles were disperse | distributed was obtained. .

And in manufacture of coating composition (2-E) and (2-F), after adding and disperse | distributing the mixture of an aqueous paint and a reactive compound (C) to a transparent paint, the reactive compound (C) was mixed.

Coating composition (2-G)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-G) in which the flat gray particle of 0.8-1.4 mm was disperse | distributed was obtained. .

Coating composition (2-H)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-H) in which the 1.0-1.6 mm flat black particle was disperse | distributed was obtained. .

And in manufacture of coating composition (2-G) and (2-H), after adding and disperse | distributing the mixture of an aqueous paint and a reactive compound (A) to a transparent paint, the reactive compound (C) was mixed.

Coating composition (2-I)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-I) which 1.0-1.6 mm flat gray particle disperse | distributed was obtained. .

Coating composition (2-J)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-J) in which 0.8-1.5 mm flat black particles were disperse | distributed was obtained. .

Coating composition (2-K)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-K) in which the flat gray particle of 0.8-1.4 mm was disperse | distributed was obtained. .

Coating composition (2-L)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-L) in which the 1.0-1.6 mm flat black particle was disperse | distributed was obtained. .

Coating composition (2-M)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-M) in which 0.8-1.5 mm flat gray particles were disperse | distributed was obtained. .

Coating composition (2-N)

Except having used each raw material in the mixing ratio shown in Table 2, the coating material was produced by the method similar to coating composition (2-A), and the coating composition (2-N) which 1.0-1.6 mm flat black particle disperse | distributed was obtained. .

TABLE 2

(Example 2-l)

First, with respect to the slate plate coated with the gray sealer, the coating composition (2-A) and the coating composition (2-B) were mixed in a weight ratio of 50:50 by using a ribbed roller. After coating at kg / m ² , drying at room temperature for 24 hours, the state of the coating film was observed. In Example 2-1, gray and black were mixed, it was smooth, and the coating film with high sensibility could be formed. No abnormalities of the colored particles were observed.

(Example 2-2)

Coating was carried out similarly to Example 2-1 except having used the coating composition (2-C) and the coating composition (2-D) in 50:50 weight ratio as a multicolor coating material.

In Example 2-2, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 2-3)

Coating was carried out similarly to Example 2-1 except having used the coating composition (2-E) and the coating composition (2-F) mixed in the weight ratio of 50:50 as a multicolor coating material.

In Example 2-3, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 2-4)

Coating was carried out similarly to Example 2-1 except having used the mixture of coating composition (2-G) and coating composition (2-H) in the weight ratio of 50:50 as a multicolor coating material.

In Example 2-4, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 2-5)

Coating was carried out similarly to Example 2-1 except having used the coating composition in which the coating composition (2-I) and the coating composition (2-J) were mixed by the 50:50 weight ratio as a multicolor coating material.

In Example 2-5, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. However, compared with Example 2-1, the finishing was a little inferior in selectivity.

(Example 2-6)

Coating was carried out similarly to Example 2-1 except having used the coating composition in which the coating composition (2-K) and the coating composition (2-L) were mixed by the 50:50 weight ratio as a multicolor coating material.

In Example 2-6, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. However, gray and black bleeding occurred due to the colored particles.

(Reference Example 2-1)

As a multi-color paint, it coat | covered like Example 2-1 except having used the coating composition in which the coating composition (2-M) and the coating composition (2-N) were mixed by the weight ratio of 50:50.

In the reference example 2-1, the whole coating film became white and the coating film with high sensibility was not able to be formed.

[Test Example 3]

(Production of multicolor paint)

Coating composition (3-A)

200 weight part of water-dispersible resin (A) is put in a container, 3 weight part of water-soluble resin (A), 1 weight part of antifoamers, and 250 weight part of water are mixed uniformly, stirring the rotation speed of a stirring blade at 1800 rpm, and a transparent coating material ( 3-A) was prepared. PH of this transparent paint (3-A) was 8.1.

Next, 90 weight part of water-dispersible resin (A) is put into another container, 180 weight part of water-soluble resin (B), 90 weight part of white pigment liquids (A), and 5 weight of antifoamers, stirring the rotation speed of a stirring blade at 1800 rpm. Part and 80 parts by weight of water were uniformly mixed to prepare a white aqueous coating material (3-A). PH of this aqueous coating material (3-A) was 9.5.

To 454 parts by weight of the above-described transparent paint (3-A), 8 parts by weight of a 5% by weight aqueous solution of ammonium borate was added as a dispersion stabilizer, and the stirring speed was uniformly mixed at 900 rpm, while stirring was continued. A mixture of 445 parts by weight of the aqueous paint (3-A) and 5 parts by weight of the reactive compound (A) was slowly added and dispersed to obtain a coating composition (3-A) in which 0.8 to 1.2 mm flat white particles were dispersed.

Coating composition (3-B)

A coating material was prepared in the same manner as the coating composition (3-A), except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-B) in which 1.0 to 1.6 mm flat gray particles were dispersed was prepared. Got it.

Coating composition (3-C)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-C) in which 0.8 to 1.2 mm flat black particles were dispersed was prepared. Got it.

Coating composition (3-D)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and a coating composition (3-D) in which 0.8 to 0.6 mm flat gray particles were dispersed was prepared. Got it.

Coating composition (3-E)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratio shown in Table 3, and the coating composition (3-E) in which 0.8 to 1.2 mm flat black particles were dispersed was prepared. Got it.

Coating composition (3-F)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-F) having 1.0 to 1.9 mm flat gray particles dispersed therein was prepared. Got it.

Coating composition (3-G)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-G) in which the flat black particles of 1.2 to 0.6 mm were dispersed was prepared. Got it.

Coating composition (3-H)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-H) in which 0.8 to 0.5 mm flat gray particles were dispersed was prepared. Got it.

Coating composition (3-I)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratio shown in Table 3, and the coating composition (3-I) in which 1.0 to 1.6 mm flat black particles were dispersed was prepared. Got it.

Coating composition (3-J)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-J) in which 1.2 to 0.8 mm flat gray particles were dispersed was prepared. Got it.

Coating composition (3-K)

Except having used each raw material in the mixing ratio shown in Table 3, the coating material was manufactured by the method similar to coating composition (3-A), and the coating composition (3-K) which 1.0-1.6 mm flat black particles disperse | distributed Got it.

And in manufacture of coating composition (3-J) and (3-K), after adding and disperse | distributing the mixture of an aqueous paint and a reactive compound (C) to a transparent paint, the reactive compound (C) was mixed.

Coating composition (3-L)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratios shown in Table 3, and a coating composition (3-L) having 0.8 to 0.6 mm flat gray particles dispersed therein was prepared. Got it.

Coating composition (3-M)

A coating material was prepared in the same manner as the coating composition (3-A) except that the raw materials were used in the mixing ratios shown in Table 3, and the coating composition (3-M) in which 0.8 to 1.4 mm flat black particles were dispersed was prepared. Got it.

And in manufacture of coating composition (3-L) and (3-M), after adding and disperse | distributing the mixture of an aqueous paint and a reactive compound (A) to a transparent paint, the reactive compound (C) was mixed.

Coating composition (3-N)

A paint was prepared in the same manner as the paint composition (3-A), except that each raw material was used in the mixing ratios shown in Table 3, and the coating composition (3-N) in which 0.8 to 1.4 mm flat gray particles were dispersed was prepared. Got it.

Coating composition (3-O)

A coating material was prepared in the same manner as the coating composition (3-A) except that each raw material was used in the mixing ratio shown in Table 3, and the coating composition (3-O) in which 0.8 to 1.2 mm flat black particles were dispersed was prepared. Got it.

Table 3-1

Table 3-2

(Example 3-1)

About the slate plate with which the gray sealer was previously coated, the coating amount of the multicolor paint which mixed the coating composition (3-A) and the coating composition (3-B) by the weight ratio of 50:50 using a bone-shaped roller was carried out After coating at 0.6kg / m ² and drying at room temperature for 24 hours, the coating state was observed. In Example 3-1, white and gray were mixed, it was smooth, and the coating film with high sensibility could be formed. No abnormalities of the colored particles were observed.

(Example 3-2)

As a multi-color paint, Example 3-1 and the same thing except having used the coating composition (3-A), the coating composition (3-B), and the coating composition (3-C) in the weight ratio of 80:10:10. I painted the same.

In Example 3-2, white, gray, and black were mixed, and it was possible to form the coating film which was smooth and had high sensibility. No abnormalities of the colored particles were observed.

(Example 3-3)

Coating was carried out similarly to Example 3-1 except having used the coating composition (3-D) and the coating composition (3-E) mixed in the weight ratio of 50:50 as a multicolor coating material.

In Example 3-3, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 3-4)

As a multi-color paint, it coat | covered like Example 3-1 except having used the coating composition which the coating composition (3-F) and the coating composition (3-G) mixed in the weight ratio of 50:50.

In Example 3-4, the high stiffness coating film which mixed gray and black was able to be formed. However, compared with Example 3-1, the some unevenness | corrugation was finished by the outstanding shape.

(Example 3-5)

Coating was carried out similarly to Example 3-1 except having used the coating composition (3-H) and the coating composition (3-I) mixed in the weight ratio of 50:50 as a multicolor coating material.

In Example 3-5, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 3-6)

Coating was carried out similarly to Example 3-1 except having used the coating composition (3-J) and the coating composition (3-K) in the weight ratio of 50:50 as a multicolor coating material.

In Example 3-6, gray and black were mixed, it was smooth and the coating film with high sensibility was able to be formed. No abnormalities of the colored particles were observed.

(Example 3-7)

Coating was carried out similarly to Example 3-1 except having used the coating composition (3-L) and the coating composition (3-M) mixed in the weight ratio of 50:50 as a multicolor coating material.

In Example 3-7, gray and black were mixed, it was smooth and it was possible to form the coating film with high contrast. No abnormalities of the colored particles were observed.

(Reference Example 3-l)

As the multicolored paint, the coating composition (3-N) and the coating composition (3-O) were coated in the same manner as in Example 3-l, except that the coating composition mixed with a weight ratio of 50:50 was used. Due to this, gray and black bleeding occurred.

[Test Example 4]

(Production of paint coating)

Undercoat Paint (4-A)

To 200 parts by weight of the water-dispersible resin (D), 40 parts by weight of the white pigment liquid (A), 30 parts by weight of the black pigment liquid (A), 28 parts by weight of the pigment (F) and 1 part by weight of the antifoaming agent were uniformly mixed in a stirrer. , A gray undercoat (4-A) was produced. The mirror glossiness of this undercoat material (4-A) was 3.0.

Undercoat Paint (4-B)

To 200 parts by weight of the water-dispersible resin (D), 20 parts by weight of the white pigment liquid (A), 1 part by weight of the black pigment liquid (A), 5 parts by weight of the pigment (F) and 1 part by weight of the antifoaming agent were uniformly mixed with a stirrer. , A gray undercoat (4-B) was produced. The mirror glossiness of this undercoat material (4-B) was 35.

Undercoat Paint (4-C)

To 200 parts by weight of the water-dispersible resin (D), 20 parts by weight of the white pigment liquid (A), 10 parts by weight of the black pigment liquid (A) and 1 part by weight of the antifoaming agent were uniformly mixed with a stirrer to form a gray undercoat (4- C) was prepared. The mirror glossiness of this undercoat material (4-C) was 75.

(Production of multicolor paint)

Coating composition (4-A)

First, 200 parts by weight of the water-dispersible resin (A) was placed in the container, and 3 parts by weight of the water-soluble resin (A), 20 parts by weight of the pigment (B), 1 part by weight of the antifoaming agent and water 250 while stirring the rotation speed of the stirring blade at 1800 rpm. The parts by weight were mixed uniformly to prepare a transparent paint (4-A). PH of this transparent paint (4-A) was 8.2, and mirror surface glossiness was 7.

Next, 90 weight part of water-dispersible resin (A) is put into another container, 180 weight part of water-soluble resin (B), 90 weight part of white pigment liquids (A), and 5 weight of antifoamers, stirring the rotation speed of a stirring blade at 1800 rpm. Part, 80 parts by weight of water, and 5 parts by weight of the reactive compound (A) were uniformly mixed to prepare a white aqueous coating material (4-A). PH of this aqueous paint (4-A) was 9.5.

To 474 parts by weight of the aforementioned transparent paint (4-A), 8 parts by weight of a 5% by weight aqueous solution of ammonium borate was added as a dispersion stabilizer, and the rotational speed of the stirring blade was uniformly mixed at 900 rpm. By gradually adding and dispersing 450 parts by weight of the paint (4-A), a paint composition (4-A) in which 0.8 to 1.4 mm of flat white particles was dispersed was obtained.

Paint Composition 4-B

A coating composition (4-B) in which a coating composition was produced in the same manner as the coating composition (4-A) except that the raw materials were used in the mixing ratios shown in Table 4, and wherein 1.0 to 1.6 mm flat gray particles were dispersed. Got.

Paint Composition 4-C

A coating composition (4-C) in which a coating composition was produced in the same manner as the coating composition (4-A) except that the raw materials were used in the mixing ratios shown in Table 4, and the 0.8-1.2 mm flat black particles were dispersed. Got.

Paint Composition 4-D

Except having used each raw material in the mixing ratio shown in Table 4, the coating composition was manufactured by the method similar to coating composition (4-A), and the coating composition (4-D) in which 0.8-1,4m flat gray particles were disperse | distributed. Got.

Paint Composition 4-E

A paint composition was prepared in the same manner as the paint composition (4-A) except that each raw material was used in the mixing ratio shown in Table 4, and the coating composition (4-E) in which 0.8 to 1.2 mm flat black particles were dispersed. Got.

Paint Composition 4-F

A coating composition (4-F) in which a coating composition was produced in the same manner as the coating composition (4-A) except that the raw materials were used in the mixing ratios shown in Table 4, and wherein 1.0 to 1.9 mm flat gray particles were dispersed. Got.

Coating Composition 4-G

A coating composition (4-G) in which a coating composition was produced in the same manner as the coating composition (4-A) except that the raw materials were used in the mixing ratios shown in Table 4, and the flat black particles of 1.2 to 1.6 mm were dispersed. Got.

Coating Composition 4-H

A coating composition was prepared in the same manner as the coating composition (4-A), except that each raw material was used in the mixing ratios shown in Table 4, and the coating composition (4-H) in which 0.8 to 1.4 mm flat gray particles were dispersed. Got.

Paint Composition 4-I

Except having used each raw material in the mixing ratio shown in Table 4, the coating composition was manufactured by the method similar to coating composition (4-A), and the coating composition (4-I) in which the flat black particle of 0.8-1.2 mm was disperse | distributed. Got.

Paint Composition 4-J

A coating composition (4-J) in which a coating composition was prepared in the same manner as the coating composition (4-A) except that the raw materials were used in the mixing ratios shown in Table 4, and wherein 1.0 to 1.9 mm flat gray particles were dispersed. Got.

Paint Composition 4-K

A coating composition (4-K) in which a coating composition was prepared in the same manner as the coating composition (4-A) except that the raw materials were used in the mixing ratios shown in Table 4, and wherein 1.0 to 1.6 mm flat black particles were dispersed. Got.

Paint composition 4-L

Except having used each raw material in the mixing ratio shown in Table 4, the coating composition was manufactured by the method similar to coating composition (4-A), and the coating composition (4-L) in which the flat gray particle of 1.2-2.0 mm was disperse | distributed Got it.

Paint Composition 4-M

Except having used each raw material in the mixing ratio shown in Table 4, the coating composition was manufactured by the method similar to coating composition (4-A), and the coating composition (4-M) in which the flat black particles of 1.0-1.6 mm were disperse | distributed. Got.

TABLE 4

(Example 4-1)

On the slate plate, the undercoat (4-A) was coated with a coating amount of 0.3 kg / m ² using a wool roller.

After drying at room temperature for 2 hours, the coating composition (4-A) and the coating composition (4-B) were mixed in a weight ratio of 50:50, and the coating amount was 0.6kg / m ² using a bone roller. Painted by. Although the state of the colored particle of the multicolor paint was observed, nothing abnormal was found.

Subsequently, after drying at room temperature for 24 hours, the state of a coating film was observed. The coating film formed in Example 4-1 had a smooth shape in which white and gray were mixed, and was unevenly finished.

(Example 4-2)

As a multi-color paint, Example 4-1 except having used the paint composition (4-A), the paint composition (4-B), and the paint composition (4-C) mixed in the weight ratio of 80:10:10. Painted the same as.

In Example 4-2, abnormality of the colored particles was not observed. Moreover, the formed coating film was the smooth shape which mixed white, gray, and black, and was unevenly and finished uniformly.

(Example 4-3)

As a multi-color paint, it coat | covered like Example 4-1 except having used the paint which the coating composition (4-D) and the coating composition (4-E) mixed in the weight ratio of 50:50.

The coating film formed in Example 4-3 was the flat shape which gray and black mixed. However, gray and black bleeding occurred due to the colored particles.

(Example 4-4)

As a multi-color paint, it coat | covered like Example 4-1 except having used the paint which the coating composition (4-F) and the coating composition (4-G) mixed in the weight ratio of 50:50.

In Example 4-4, no abnormality of the colored particles was observed. In addition, the formed coating film was the shape which gray and black mixed. However, unevenness was outstanding compared with Example 4-1.

(Example 4-5)

As a multi-color paint, it coat | covered like Example 4-1 except having used the paint which mixed the coating composition (4-H) and the coating composition (4-I) by the weight ratio of 50:50.

The coating film formed in Example 4-5 was the flat shape which gray and black mixed. However, gray and black bleeding occurred due to the colored particles.

(Example 4-6)

Coating was carried out similarly to Example 4-1, except for using the undercoat (4-B) as the undercoat.

The coating film formed in Example 4-6 was the flat shape which gray and black mixed. However, when roller-coating a multicolored paint, colored particle | grains arrived in some nonuniformity, and the part of formation coating film | membrane generate | occur | produced.

(Example 4-7)

As a multi-color paint, it coat | covered like Example 4-1 except having used the paint which the coating composition (4-J) and the coating composition (4-K) mixed in the weight ratio of 50:50.

The coating film formed in Example 4-7 was the smooth shape which gray and black mixed. However, compared with Example 4-1, the finish was slightly inferior in screening performance.

(Reference Example 4-1)

Except having used the paint used as a paint coat (4-B), and the paint composition (4-L) and the paint composition (4-M) mixed by the weight ratio of 50:50 as a multicolor paint, it uses an Example. Coating was carried out similarly to 4-1.

In the reference example 4-1, when roller-coating a multicolored paint, colored particle | grains arrived unevenly and the remarkable unevenness | corrugation generate | occur | produced in the formed coating film.

(Reference Example 4-2)

Coating was carried out similarly to Example 4-1, except for using the undercoat (4-C) as the undercoat.

In the reference example 4-2, when multicolored paint was roller-coated, colored particles were unevenly produced and marked stains were formed in the formed coating film.

[Test Example 5]

(Production of paint coating)

Undercoat paint (5-A)

To 200 parts by weight of the water-dispersible resin (D), 40 parts by weight of the white pigment liquid (A), 30 parts by weight of the black pigment liquid (A), 28 parts by weight of the pigment (F) and 1 part by weight of the antifoaming agent were uniformly mixed with a stirrer. , A gray undercoat (5-A) was produced. The mirror glossiness of this undercoat material (5-A) was 3.0.

Undercoat paint (5-B)

To 200 parts by weight of the water-dispersible resin (D), 20 parts by weight of the white pigment liquid (A), 15 parts by weight of the black pigment liquid (A), 5 parts by weight of the pigment (F) and 1 part by weight of the antifoaming agent were uniformly mixed with a stirrer. , A gray undercoat (5-B) was produced. The mirror surface glossiness of this undercoat material (5-B) was 35.

Undercoat paint (5-C)

To 200 parts by weight of the water-dispersible resin (D), 20 parts by weight of the white pigment liquid (A), 10 parts by weight of the black pigment liquid (A) and 1 part by weight of the antifoaming agent were uniformly mixed with a stirrer to obtain a gray undercoat (5- C) was prepared. The mirror glossiness of this undercoat material (5-C) was 75.

(Production of multicolor paint)

Coating composition (5-A)

First, 200 parts by weight of the water-dispersible resin (A) was placed in the container, and 4 parts by weight of the water-soluble resin (A), 35 parts by weight of the pigment (B), 1 part by weight of the antifoaming agent and water 380 while stirring the rotation speed of the stirring blade at 1800 rpm. The parts by weight were mixed uniformly to prepare a transparent paint (5-A). PH of this transparent paint (5-A) was 8.1, and the mirror surface glossiness was 5.

Next, 85 weight part of water-dispersible resins (C) are put into another container, 250 weight part of water-soluble resins (B), 50 weight part of white pigment liquids (A), and black pigment liquid, stirring the rotation speed of a stirring blade at 1800 rpm. (A) 50 weight part, 5 weight part of antifoamers, 50 weight part of water, and 3 weight part of reactive compounds (C) were mixed uniformly, and the white aqueous coating material (5-A) was produced. PH of this aqueous paint (5-A) was 8.9.

To 620 parts by weight of the above-described transparent paint (5-A), 10 parts by weight of an aqueous solution of 5% by weight of ammonium borate was added as a dispersion stabilizer, and the rotational speed of the stirring blade was uniformly mixed at 900 rpm. 493 parts by weight of paint (5-A) was gradually added and dispersed to obtain a paint composition (5-A) in which 0.7 to 1.2 mm flat gray particles were dispersed.

Coating composition (5-B)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-B) in which the flat black particle of 0.8-1.6 mm was disperse | distributed was obtained. .

Coating composition (5-C)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-C) in which the 1.0-1.6 mm flat gray particle was disperse | distributed was obtained. .

Coating composition (5-D)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-D) in which the flat black particle of 0.8-1.4 mm was disperse | distributed was obtained. .

Coating composition (5-E)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-E) which 1.0-1.6 mm of flat gray particles disperse | distributed was obtained. .

Coating composition (5-F)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-F) in which the flat black particle of 0.8-1.5 mm was disperse | distributed was obtained. .

And in manufacture of coating composition (5-E) and (5-F), after adding and disperse | distributing the mixture of an aqueous coating material and a reactive compound (C) to a transparent coating material, the reactive compound (C) was mixed.

Coating composition (5-G)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-G) in which the flat gray particle of 0.8-1.4 mm was disperse | distributed was obtained. .

Coating composition (5-H)

Except having used each raw material by the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-H) in which the flat black particle of 1.0-1.6 mm was disperse | distributed was obtained. .

And in manufacture of coating composition (5-G) and (5-H), after adding and disperse | distributing the mixture of an aqueous paint and a reactive compound (A) to a transparent paint, the reactive compound (C) was mixed.

Coating composition (5-I)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-I) which 1.0-1.6 mm flat gray particle disperse | distributed was obtained. .

Coating composition (5-J)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-J) in which the flat black particle of 0.8-1.5 mm was disperse | distributed was obtained. .

Coating composition (5-K)

Except having used each raw material by the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-K) in which the flat gray particle of 0.8-1.4 mm was disperse | distributed was obtained. .

Coating composition (5-L)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-L) with which 1.0-1.6 mm of flat black particles was disperse | distributed. .

Coating composition (5-M)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-M) in which 1.0-1.8 mm flat gray particles were disperse | distributed was obtained. .

Coating composition (5-N)

Except having used each raw material in the mixing ratio shown in Table 5, the coating material was produced by the method similar to coating composition (5-A), and the coating composition (5-N) in which the flat black particle of 1.2-1.8 mm was disperse | distributed was obtained. .

TABLE 5

(Example 5-1)

With respect to the slate plate, the undercoat material (5-A) was coated with a coating amount of 0.3 kg / m ² using a wool roller.

After drying at room temperature for 2 hours, the coating composition (5-A) and the coating composition (5-B) were mixed in a weight ratio of 50:50 by using a bone roller to apply a coating amount of 0.6 kg / m. Painted with ² . Although the state of the colored particle of the multicolor paint was observed, in particular, no abnormality was found.

Subsequently, after drying at room temperature for 24 hours, the state of a coating film was observed. The coating film formed in Example 5-1 had a smooth shape in which white and gray were mixed, and was unevenly finished.

(Example 5-2)

As a multi-color paint, it coat | covered like Example 5-1 except having used the paint which the coating composition (5-C) and the coating composition (5-D) mixed in the weight ratio of 50:50.

In Example 5-2, no abnormality of the colored particles was observed. Moreover, the formed coating film was a smooth shape which mixed white, gray, and black, and was finished uniformly without a spot.

(Example 5-3)

As a multi-color paint, it coat | covered like Example 5-1 except having used the paint which mixed the coating composition (5-E) and the coating composition (5-F) by the weight ratio of 50:50.

In Example 5-3, no abnormality in the colored particles was observed. Moreover, the formed coating film was a smooth shape which mixed white, gray, and black, and was unevenly and uniformly finished.

(Example 5-4)

As a multi-color paint, it coat | covered like Example 5-1 except having used the paint which mixed the coating composition (5-G) and the coating composition (5-H) by the weight ratio of 50:50.

In Example 5-4, no abnormality in the colored particles was observed. Moreover, the formed coating film was a smooth shape which mixed white, gray, and black, and was finished uniformly without a spot.

(Example 5-5)

As a multi-color paint, it coat | covered like Example 5-1 except having used the paint which mixed the coating composition (5-I) and the coating composition (5-J) by the weight ratio of 50:50.

The coating film formed in Example 5-5 was the smooth shape which mixed gray and black. However, compared with Example 5-1, the finishing was slightly inferior in sedimentation.

(Example 5-6)

Coating was carried out similarly to Example 5-1, except for using the undercoat (5-B) as a undercoat.

The coating film formed in Example 5-6 was the smooth shape which gray and black mixed. However, when roller-coating a multicolored paint, the colored particle arrived a little nonuniformly, and a part of formation coating film | membrane generate | occur | produced.

(Example 5-7)

As a multi-color paint, it coat | covered like Example 5-1 except having used the paint which mixed the coating composition (5-K) and the coating composition (5-L) by the weight ratio of 50:50.

The coating film formed in Example 5-7 was the flat shape which gray and black mixed. However, gray and black bleeding occurred due to the colored particles.

(Reference Example 5-1)

Except having used the paint used as the paint coat (5-B), and the paint composition (5-M) and the paint composition (5-N) mixed by the weight ratio of 50:50 as a multicolor paint, it uses an Example. Coating was carried out similarly to 5-1.

In Reference Example 5-l, when the multicolor paint was roller-coated, the colored particles arrived unevenly, and a significant unevenness occurred in the formed coating film.

(Reference Example 5-2)

Coating was carried out in the same manner as in Example 5-l, except that the undercoat (5-C) was used as the undercoat.

In the reference example 5-2, when roller-coating a multicolored paint, colored particle | grains arrived unevenly and the remarkable unevenness | corrugation arose in the formed coating film.

The water-in-water type multicolor coating composition of this invention can form the matte coating film excellent in smoothness and striation. In addition, the water-in-water multicolor coating composition of the present invention can form a constant smooth multicolor even when coating conditions such as a coating mechanism and a coating temperature are varied. According to the present invention, the water-in-water multicolor coating composition can be roller-coated or brush-coated to form a colorful and smooth coating film surface.

Claims (12)

delete A matte transparent paint containing an aqueous resin and a extender pigment having a refractive index of 1.4 to 0.7; And At least one flat colored gel particle dispersed in said paint Including; The flat colored gel particle is an aqueous resin (a), a colored pigment (b), water (c) and a gelled derivative derived from a reactive compound (d) capable of reacting in the presence of water. A matte transparent paint containing an aqueous resin and a extender pigment having a refractive index of 1.4 to 0.7; And At least one flat colored gel particle dispersed in said paint Including; The flat colored gel particles are gelled by mixing an aqueous paint comprising an aqueous resin (a), a colored pigment (b) and water (c) with a reactive compound (d) which can react in the presence of water. Multicolor paint composition. Transparent paint containing an aqueous resin; And At least one flat colored gel particle dispersed in said paint Including; The flat colored gel particles are an aqueous resin (a), a colored pigment (b), water (c) and a gelled product made of a reactive compound (d) capable of reacting in the presence of water. Transparent paint containing an aqueous resin; And At least one flat colored gel particle dispersed in said paint Including; The flat colored gel particles are gelled by a mixture of an aqueous paint containing an aqueous resin (a), a colored pigment (b) and water (c) and a reactive compound (d) which can react in the presence of water. Multicolor paint composition. The method according to any one of claims 2 to 5, The component (a) is an aqueous resin (a-1) having a reactive functional group, and the component (d) is a reactive compound (d-1) capable of reacting with the component (a-1) in the presence of water. Water-in-water multicolor paint composition. The method according to any one of claims 2 to 5, The said (d) component is a reactive compound (d-2) which can self-condense in presence of water, The water-in-water type multicolor coating composition characterized by the above-mentioned. A matte transparent paint containing an aqueous resin and a extender pigment having a refractive index of 1.4 to 0.7; And At least one flat colored gel particle dispersed in said paint Including; Gel obtained by mixing the reactive compound (d) which can react in presence of water with the aqueous coating material which the said flat colored particle contains the reactive resin (a-1), colored pigment (b), and water (c) which has a reactive functional group. The water-in-water multicolor coating composition obtained by disperse | distributing a cargo in flat particle form in an aqueous dispersion medium, and mixing the said (a-1) component and the reactive compound (d-1) which can react. Transparent paint containing an aqueous resin; And At least one flat colored gel particle dispersed in said paint As an underwater water-based multi-color coating composition comprising, Gel obtained by mixing the reactive compound (d) which can react in presence of water with the aqueous coating material which the said flat colored particle contains the reactive resin (a-1), colored pigment (b), and water (c) which has a reactive functional group. The water-in-water multicolor coating composition obtained by disperse | distributing a cargo in flat particle form in an aqueous dispersion medium, and mixing the said (a-1) component and the reactive compound (d-1) which can react. The method according to claim 8 or 9, The water-in-water type multicolor coating composition, wherein the component (d) is a reactive compound (d-1) capable of reacting with the component (a-1) in the presence of water. The method according to claim 8 or 9, The water-in-water type multicolor coating composition, wherein the component (d) is a reactive compound (d-2) capable of self-condensing in the presence of water. On the base material of a building, a undercoat is formed as a coloring matte undercoat; A water-based multi-color coating composition according to any one of claims 2 to 5, 8 or 9, by roller coating or brush coating to form a top coat layer The method of forming a coating film surface comprising the step.