JPH0718201A - Production of colored particle and suede-like coating composition made by using the same - Google Patents

Abstract

PURPOSE:To obtain colored particles which, when used for architectural interior or exterior coating, can prevent the spread of a fire because of the flame retardancy of the coating film and scarcely generate carbon dioxide, chlorine gas, etc., in the case of a fire without accelerating the global environmental destruction, such as making the earth warmer or the destruction of the ozone layer, and which can express a vivid novel accent, such as an appearance of a fine pepper-and-salt multicolor pattern and a feel of an appropriate degree of roughness, on the coating film. CONSTITUTION:Water-insoluble inorganic particles are dispersed in water, and the dispersion is mixed with a polycarboxylic acid resin having an acid value of 30 to 120 (solids) to form primary coated particles comprising the inorganic particles coated with a thin film of the polycarboxylic acid resin. This dispersion is then mixed with a dispersion-stable emulsion resin containing a color pigment, and a metal salt is added to this mixture to provided the colored inorganic particles of a mean particle diameter of 10-200mum having a colored film formed on the surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing colored particles and a suede-like coating composition using the colored particles. The purpose of the present invention is to obtain colored particles having flame retardancy, By using it as an interior or exterior paint, it is possible to prevent the spread of fire and to not generate a large amount of carbon dioxide gas or toxic gas, so it can contribute to global environment conservation and after painting. Coloring that combines functionality and beauty, such as the appearance of a finely frosted multicolored pattern different from conventional single-color paints and a tactile feeling with moderate roughness, etc., to express a clear accent The present invention provides a method for producing particles and a suede-like coating composition using the colored particles.

[0002]

BACKGROUND OF THE INVENTION Since around 1990, global warming problems caused by carbon dioxide (CO ₂ ) and global environmental problems such as ozone layer depletion have become very serious all over the world. Carbon dioxide released into the atmosphere during daily life and incineration is accumulated in the earth's gravity zone, extinguishing ecosystems, or forming a barrier layer that blocks heat, resulting in temperature rise. The accumulated carbon dioxide capacity up to the present time has already exceeded the purification capacity of the earth, and the rate of increase in environmental destruction has been accelerated. Against this background, in recent years, it has become an urgent task to develop industrial technology that can contribute to global environment conservation for the purpose of coexistence of the global environment and humans.

[0003]

2. Description of the Related Art In addition to paints for the purpose of anticorrosion and beauty, in recent years many paints having various functions have been created as functional paints. Flame-retardant fire-preventive paint exists in one of them. This flame retardant fireproof paint is
The coating itself is flame-retardant and has a self-extinguishing function.It is applied to the surface of combustible materials such as wood to make it difficult to ignite, or to prevent fire spread or delay fire spread. There are emulsion paints in which a large amount of an inorganic pigment is added to a binder having flammability, paints in which a flame retardant auxiliary agent such as antimony trioxide is further added to a resin binder flame-retarded with halogen, and the like.

However, in such a flame-retardant paint, since the function itself is emphasized, the design effect and the aesthetic effect are often secondary, so that the consumer's demand and taste are sufficient. Couldn't be satisfied with.
That is, as social life improves, consumers' tastes will also diversify, and the paints used on the interior and exterior surfaces of buildings will also have more than two colors than conventional single-color paints. Interest is shifting to paints that can express a wide variety of colors.

In the light of such a background, one coat of 2
"Multicolored paints" have been created that can form paint films that contain more than the distinguishable colors. This "multicolored paint" is composed of a dispersion medium and a dispersion, the two do not mix with each other, and are in a state in which they are appropriately dispersed or suspended, and a scattered pattern appears by spraying or by a roller. It was the paint that became like this. Unlike the conventional single color paint, this "multicolored paint" was a novel paint that can express variations of two or more colors, but since the diversification of consumer preferences is expanding, The “multicolored paint” having such a structure alone could not sufficiently satisfy consumers' tastes and demands.

Therefore, intensive research has been conducted on paints having a color tone different from that of the "multicolored paint", and various finer and finer colors different from the scattered colors expressed in the "multicolored paint" have been developed. Attention has been paid to paints that can be clearly expressed, and the inventors have already created paints with excellent decorative properties that allow the appearance of a fine, multicolored pattern that should be called a "marbling pattern" to appear on the paint film. (JP-A-2-41371)
issue). The coating material previously created by the present inventors mixed a mixture of a dispersion-stabilized coloring pigment and an emulsion resin with particles of a vinyl chloride-based synthetic resin containing a plasticizer, and added a metal salt to the mixed system. The average particle size is 10 ~
By the method for producing colored polymer powder of 200 μm, the colored polymer powder thus obtained has a coating of color pigment formed on the surface, and by dispersing this in a varnish,
The paint was able to visualize the colored particles as a suede-like multicolored pattern and to reveal a fine marbling-like multicolored pattern.

[0007]

However, although the paint prepared by the above-mentioned disclosed technique can express a coating film having a color different from that of the conventional single-color paint or "multicolored" paint, In recent years, there has been a problem that it is not a paint that can contribute to global environmental conservation, which has become a serious problem worldwide. In other words, due to problems such as the destruction of the global environment, the demand for safety against fires has tended to become more and more stringent in recent years, but with the above-mentioned existing paints, the paint film itself is flammable and has been painted. When a building has a fire, there is a problem that it is impossible to prevent the spread of the fire. Moreover, when a fire occurs, the coating film burns, generating carbon dioxide or toxic gases such as hydrochloric acid gas when using vinyl chloride resin, which causes a global warming phenomenon. There is a risk that the ozone layer depletion, acid rain phenomenon, etc. may be further promoted, and there is a problem that the paint is not a material that can contribute to global environmental conservation problems. Therefore, in the industry, in the event of a fire, it is highly safe, such as the ability to prevent the spread of the fire, and in addition to being able to make a significant contribution to environmental conservation, which has recently been undertaken on a global scale. It is desirable to create an excellent paint that can contribute to coexistence with humans and the global environment with excellent functionality and aesthetics, such as being able to clearly express a novel appearance that is different from the single color paint of It was rare.

[0008]

According to the present invention, water-insoluble inorganic particles are dispersed in water to prepare a dispersion liquid, and then a polycarboxylic acid having an acid value of 30 to 120 (solid content) is added to the dispersion liquid. After mixing the acid resin to form a primary coating particle in which a thin film of a polyvalent carboxylic acid resin is coated on the surface of the inorganic particles, and then mixing a dispersion-stabilized emulsion resin containing a color pigment in the dispersion liquid. , A metal salt is added to this mixed system to form a colored coating on the surface.
By providing a method for producing colored particles, which is characterized in that colored inorganic particles of μm are obtained, the above-mentioned conventional problems are alleviated.

[0009]

[Function] As a particle nucleus of colored particles, talc, kaolin,
Since inorganic particles such as calcium carbonate are used, even if a fire occurs in a painted building, the coating film itself has flame retardance and can prevent the spread of the fire. Therefore, carbon dioxide, hydrochloric acid gas, etc., which are one of the causes of promoting problems such as global warming and ozone layer depletion, by preparing paints for interior or exterior of buildings using these colored particles Emissions of toxic gas are reduced and the paint can contribute to global environmental protection. Moreover, in the paint prepared by using these colored particles, the appearance of a fine frosty multicolored pattern having a different color feeling and color tone from the conventional single color paint and multicolored paint, and flexibility and moderateness Since it is possible to obtain a coating or coating having a texture, a sharp accent different from the conventional one that can meet the diversified consumer preferences and demands as a coating for exterior or interior of buildings. Can be expressed.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The method for producing colored particles according to the present invention and the structure of a suede-like coating composition using the colored particles will be described in detail below. First, the method for producing colored particles will be described in detail. In the present invention, the surface of the inorganic particles is first coated with a thin film of a polycarboxylic acid resin to form primary coated particles. As the inorganic particles used, any water-insoluble inorganic particles such as clay, kaolin, talc, calcium carbonate, alumina and mica can be used and are not particularly limited. As the average particle size of the inorganic particles used, those selected so that the average particle size of the finally obtained colored particles is 10 to 200 μm are preferably used.

The above water-insoluble inorganic particles are dispersed in water to obtain a dispersion liquid. Here, the dispersion concentration of the inorganic particles is about 30 to 70% by weight, and more desirably 3
It is preferably from 0 to 60% by weight. The reason for this is 30
If the amount is less than 10% by weight, the weight of the primary coated particles obtained is too small and the manufacturing process becomes complicated. On the other hand, if the amount is more than 70% by weight and dispersed in water, the fluidity necessary for coating cannot be obtained. This is because neither case is preferable. A polycarboxylic acid resin is mixed in such a dispersion.

As the polycarboxylic acid resin, one having an acid value of 30 to 120, more preferably about 40 to 60 (solid content) is used. The reason for this is that if the acid value of the polycarboxylic acid resin used is less than 30, the water dilutability will be poor and it will not dissolve, while if the acid value exceeds 120, the water dilutability will be too good and the resin will This is because it does not precipitate in water and is not preferable in any case. Further, the acid value of the polycarboxylic acid resin is 4
By using about 0 to 60, it becomes possible to sufficiently coat the surface of the inorganic particles dispersed in water with the thin film of the polyvalent carboxylic acid resin. As the polycarboxylic acid resin, acrylic resin, methacrylic acid resin, acrylic resin such as glycidyl methacrylic acid resin, alkyd resin such as phthalic acid resin and maleic acid resin, water-insoluble resin such as styrene-maleic acid resin and styrene-butadiene resin. The polycarboxylic acid resin can be preferably used without any particular limitation. The mixing ratio of the polyvalent carboxylic acid resin mixed in the dispersion liquid is 100
0.2 parts by weight of polyvalent carboxylic acid resin in solid form based on parts by weight
˜200, more preferably about 10 to 100 parts by weight is desirable. The reason for this is that if the mixing ratio of the polyvalent carboxylic acid resin is less than 0.2 parts by weight with respect to the inorganic particles, the primary coated particles composed of the inorganic particles cannot be suitably formed, while the inorganic particles are On the other hand, if it is blended in an amount of more than 200 parts by weight, the particles tend to aggregate, which is not preferable in any case.

As described above, when the polyvalent carboxylic acid resin is mixed in the dispersion and left for a few minutes with appropriate stirring, the primary coated particles having the inorganic particle surface coated with a thin film of the polyvalent carboxylic acid resin. Can be obtained in the dispersion. In this way, to obtain the primary coated particles, the compatibility between the inorganic particle surface and the coloring paint described later, the wettability is poor, and it is difficult to form a coating film of the coloring paint directly on the surface of the inorganic particles. , By forming a thin film of a polyvalent carboxylic acid resin on the surface of the inorganic particles as in the present invention, the compatibility with the colored coating material, the wettability becomes good, the inorganic particles having a coating film of the colored coating material formed sufficiently This is because it is based on the experimental knowledge of the inventors that it can be suitably obtained.

In the dispersion liquid in which the primary coated particles are formed,
Next, a dispersion-stabilized emulsion resin containing a color pigment is mixed. As the color pigment, known pigments are preferably used, for example, titanium dioxide, titanium yellow,
Zinc flower, red iron oxide, dark blue, yellow lead, zinc chromate, ultramarine, barite powder, inorganic pigments such as manganese violet and carbon black, extenders such as calcium carbonate, clay, talc, Hansaello, Benzidine Yellow, Toluidine Red, Naphthol Red, Organic pigments such as phthalocyanine blue, phthalocyanine green, and fast sky blue are not particularly limited and are preferably exemplified.

As the emulsion resin, those which have their emulsion stability hindered by the presence of metal ions and which adhere to the surface of the above-mentioned primary coated particles in the form of agglomerates or gels are preferably used, for example acrylic, styrene acrylic, polyester, Polyurethane, vinyl chloride vinyl acetate copolymer,
Examples of suitable examples include synthetic resins such as vinyl chloride-acrylic copolymers and natural resins such as mastic, acaloid, benzoin, dragon blood, elemi, and sandalac. The surfactant is not particularly limited, and includes a cationic surfactant, an anionic surfactant,
Any known ones such as nonionic surfactants and amphoteric surfactants can be preferably used. The addition amount of the surfactant is 1% by weight or less with respect to the addition amount of the emulsion resin, and the grain system of the emulsion resin is
The thickness of 0.1 μm or less is preferable because the emulsion is destabilized with respect to metal ions, but is not particularly limited. Moreover, you may add a defoaming agent, a film-forming aid, etc. to emulsion resin as needed. The content of the color pigment with respect to such an emulsion resin,
It is preferably 2 to 300 parts by weight with respect to 100 parts by weight of the solid content of the emulsion resin, but is not particularly limited.

The emulsion resin containing the color pigment as described above is mixed in the dispersion liquid in which the primary coated particles are formed. As the mixing ratio, when the weight of the inorganic particles to be coated is 100 parts by weight, the amount of the emulsion resin used (solid content) is 1 to 200 parts by weight, preferably 10 to
It is preferably 100 parts by weight. The reason for this is that if the amount of emulsion resin used is less than 1 part by weight, the surface of the primary coated particles cannot be adequately coated, resulting in particles with poor colorability. This is because a fine gelled product in which only particles are aggregated is obtained, and a colorful pattern is hard to appear clearly, which is not preferable in any case.

After the mixture of the color pigment and the emulsion resin is added to the dispersion liquid in which the primary coated particles are formed, they are stirred, and then a metal salt is added to this mixed system to obtain the surface of the primary coated particles. It is possible to obtain a dispersion liquid of colored particles having a colored coating formed thereon. The metal salt used is not particularly limited, and for example, calcium chloride, barium chloride, aluminum sulfate, cuprous sulfate, ferric chloride, nitric acid source, lead acetate, etc. can be preferably used. The reason for adding the metal salt in this way is that the addition of the metal salt
This is because the emulsion resin containing the color pigment is coagulated. The addition amount of the metal salt is preferably an appropriate amount by obtaining the amount of the metal salt at which the emulsion resin and the metal salt are mixed to form an aggregated gel. Incidentally, it is also possible to add water to the metal salt to add it as an aqueous metal salt solution, in which case the weight ratio of the emulsion resin solution containing the color pigment and the aqueous metal salt solution is considered in consideration of particle stability. 7: 3 ~
3: 7, preferably 6: 4 to 5: 5,
It is not particularly limited.

The average particle diameter of the colored particles having a colored coating formed on the surface of the primary coated particles obtained as described above is 10
˜200 μm, more preferably 30 to 100 μm. The reason for this is that when colored particles of different colors are prepared and kneaded based on the method described above, and if the particle size of the colored particles is less than 10 μm, they are not individually identified by the naked eye, and therefore particles of multiple colors are not recognized. Visually, they couldn't be perfectly merged and could not be seen as a marbled multicolored pattern,
On the other hand, if the particle size exceeds 200 μm, the color distribution of the multicolored pattern will be poor, and the fine marbling pattern, the fabric with excellent decorative properties, and the suede-like appearance will not appear, and the surface of the coating after drying will not appear. This is because the surface becomes rough and a supple touch is not obtained, which is not preferable in any case. When the particle size is in the range of 30 to 100 μm, the tactile sensation is good, and the cloth-like or suede-like texture is most remarkable.

Further, the weight ratio between the inorganic particles and the colored coating formed on the surface is such that the colored coating is 0.1 to 5.0, more preferably about 1.53, relative to 100 parts by weight of the inorganic particles. Is preferred. The reason for this is that if the weight of the colored coating film is less than 0.1 with respect to 100 parts by weight of the inorganic particles, a uniform coating film cannot be obtained, which is not a preferable colored particle, but more than 5.0 parts by weight. This is because the obtained colored particles have high tackiness and agglomeration occurs in the production process, which is not preferable in any case.

Next, the constitution of the suede-like coating composition using the above-mentioned colored particles will be described in detail. The dispersion liquid of the colored particles obtained by the above-mentioned production method can be used as it is, or only the colored particles can be taken out from the dispersion liquid and kneaded with an aqueous varnish to prepare a coating composition. At this time, when the dispersion liquid of the colored particles is used as it is or when it is kneaded with the aqueous varnish, an appropriate additive such as an antifoaming agent or a thickener is optionally mixed.
Further, a known flame retardant-imparting agent such as chlorinated paraffin and antimony trioxide may be mixed in the coating composition.

When only the colored particles are taken out and kneaded with an aqueous varnish to prepare a coating composition, the aqueous varnish is not particularly limited, and an emulsion resin or a water-soluble resin such as an acrylic resin or a vinyl acetate resin is used. Others can be suitably used. By changing the hardness and flexibility of the water-based varnish or the colored particles, it is possible to obtain coatings having various tactile sensations.

Further, in the present invention, a colored mica may be mixed with the above-mentioned colored particles to prepare a coating composition. Here, the colored mica refers to a mica having a surface coated with a melamine resin for baking, and an average particle size of about 10 to 2000 μm is preferably used.
Specifically, color mica (trade name, Sanyo Kasei Co., Ltd.)
Manufactured) and the like, but are not particularly limited.

By mixing such a colored mica together with colored particles to form a coating composition, a dried coating film can be obtained.
A pearly luster is imparted along with a marbled multicolored pattern, resulting in a paint with a superior cosmetic effect.

[0024]

As described in detail above, according to the present invention, water-insoluble inorganic particles are dispersed in water to prepare a dispersion, and then the dispersion has an acid value of 30 to 120 (solid content). A carboxylic acid resin is mixed to form a primary coating particle in which a thin film of a polycarboxylic acid resin is coated on the surface of an inorganic particle, and then a dispersion-stabilized emulsion resin containing a color pigment is mixed in this dispersion liquid. After that, a metal salt was added to this mixed system to form a colored coating film on the surface.
Since the method for producing colored particles is characterized by obtaining colored inorganic particles of 0 μm, the flame retardancy of the coating film obtained by these colored particles and in combination with resins such as vinyl chloride resin paints and vinylidene chloride Yes, even if there is a fire in a painted building, it is possible to prevent the spread of the fire, and the amount of carbon dioxide and toxic gas generated is extremely small, which contributes to global warming, ozone depletion, and acid rain. It is a paint that does not promote environmental pollution and contributes to environmental conservation, and expresses clear accents such as a finely frosted multicolored appearance on the coated film and a tactile feeling with moderate roughness. Thus, it is possible to obtain an effect that it is an excellent colored particle and a paint that have both functionality and aesthetics at the same time. Furthermore, by mixing colored mica together with colored particles to form a coating composition, a pearly luster is imparted to the coating film after drying, and the effect is that the coating composition has a more beautiful appearance.

[0025]

The effects of the method for producing colored particles according to the present invention and the suede-like coating composition using the colored particles will be further clarified below with reference to Examples and Comparative Examples. However, the present invention is not limited to the following embodiments.

Example 1 Inorganic particles having an average particle size of 4
100 parts by weight of 0 μm natural small-sized pumice (Kagalite K-10, manufactured by Silver Sangyo Co., Ltd.) was dispersed in water at a concentration of 50% to obtain a dispersion liquid. Polycarboxylic acid resin [acrylic resin, acid value 47.2 (trade name: Polysol OLX 4320-13, Showa Highpolymer Co., Ltd.)] in this dispersion liquid
2.8 parts by weight were mixed and stirred to form primary coated particles having a coating of polyvalent carboxylic acid resin on the surface of the inorganic particles. Next, 26.1 parts by weight of an emulsion resin [acrylic resin (trade name: Nikazol RX876, manufactured by Nippon Carbide Industries Co., Ltd.)] containing 13.2 parts by weight of titanium dioxide as a color pigment was mixed in this dispersion liquid. Then, 0.6 parts by weight of calcium chloride as a metal salt is mixed with this mixed system to coagulate the emulsion resin,
A dispersion liquid of white colored particles having an average particle size of 45 μm was obtained.
Furthermore, a dispersion liquid of black colored particles having an average particle size of 44 μm was obtained by the same method as described above except that carbon black was used instead of titanium dioxide as the coloring pigment. 50 parts by weight of white colored particles taken out from the dispersion and 50 parts by weight of black colored particles were kneaded with 40 parts by weight of an aqueous varnish having a nonvolatile content of 55% to obtain a coating composition of Example 1.

Example 2 Average particle size of 16 as inorganic particles
The same dispersion liquid of white and black colored particles as in Example 1 was obtained, except that 0 μ of calcium carbonate (cold water # 65/50, manufactured by Nitto Koka Co., Ltd.) was used. Colored particles were taken out from this dispersion, respectively, to obtain a coating composition of Example 2 similar to Example 1.

Example 3 To 100 parts by weight of white colored particles and 10 parts by weight of black colored particles prepared in Example 1,
Furthermore, black colored mica (trade name: Color mica # 65
5, and 5 parts by weight of Sanyo Kasei Co., Ltd. were mixed, and this mixture was kneaded with 50 parts by weight of an aqueous varnish having a nonvolatile content of 55% to obtain a coating composition of Example 3.

Comparative Example 1 Inorganic particles having an average particle size of 4
100 parts by weight of 0 μm natural small-sized pumice (Kagalite K-10, manufactured by Silver Sangyo Co., Ltd.) was dispersed in water at a concentration of 50% to obtain a dispersion liquid. Emulsion resin containing 13.2 parts by weight of titanium dioxide as a color pigment in this dispersion [acrylic resin (trade name: Nicazole RX876,
Nippon Carbide Industry Co., Ltd.)] 26.1 parts by weight are mixed and stirred, and 0.6 parts by weight of calcium chloride as a metal salt is further mixed into this mixed system to coagulate the emulsion resin, and then averaged. A dispersion liquid of white colored particles having a particle size of 40 μm was obtained. Further, a dispersion liquid of black colored particles having an average particle size of 40 μm was obtained by the same method as above except that carbon black was used instead of titanium dioxide as the coloring pigment. 50 parts by weight of white colored particles taken out from the dispersion and 50 parts by weight of black colored particles were kneaded with 40 parts by weight of an aqueous varnish containing 55% of non-volatile components to obtain a coating composition of Comparative Example 1.

(Comparative Example 2) White and black colored particles were obtained in the same manner as in Example 1 except that the polycarboxylic acid resin had an acid value of 130. The colored particles were taken out to obtain a coating composition of Comparative Example 2 similar to that of Example 1.

(Comparative Example 3) Vinyl chloride polymer having an average particle size of 40 μm (trade name: ZEON 103ZXA, Nippon Zeon Co., Ltd.)
Was mixed so as to contain di-n-octyl phthalate as a plasticizer in an amount of 29% by weight to prepare 150 parts by weight of a vinyl chloride-based synthetic resin containing the plasticizer. Emulsion synthetic resin [styrene non-volatile component 47% styrene acrylic emulsion (trade name: ACRONAL YJ1210D, manufactured by Mitsubishi Yuka Birdishe Co., Ltd.)] 40 parts by weight of titanium dioxide is mixed with 80 parts by weight of the chloride containing the plasticizer. Mixed with vinyl-based synthetic resin. After adding an appropriate amount of water to this mixed system, 1.1 parts by weight of calcium chloride as a metal salt was mixed to obtain a dispersion liquid of colored polymer powder particles having an average particle diameter of 42 μm. A dispersion liquid of black colored polymer powder particles having an average particle size of 42 μm was obtained by the same method as above except that 4.4 parts by weight of carbon black was used instead of titanium dioxide as the coloring pigment. White polymer powder 50 taken out from the dispersion liquid
After mixing 50 parts by weight of black polymer powder and 50 parts by weight of black polymer powder, 50 parts by weight of an aqueous varnish having a nonvolatile content of 55% was kneaded to obtain a coating composition of Comparative Example 3.

Test Example 1 The coating compositions obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were each applied twice to the surface of a slate plate test piece, and the appearance and touch of the coating film were examined. It was
The appearance was evaluated by visually observing the color clarity 2 hours after application. The touch was evaluated 24 hours after application by touching with a fingertip and observing the presence or absence of roughness. At the time of evaluation, 20 male and 20 female panelists were randomly selected, and the one with the best evaluation was 10 points, and the one with the worst evaluation was 0 point. It was shown to. Furthermore, by observing whether the paint sufficiently covers the particles by observing with a microscope, those that are sufficiently covered are evaluated as ◯, and those that are not covered are evaluated as ×, respectively.
The results are also shown in Table 1. In addition, as the particle strength, scratches were taken with a nail 30 days after application to check whether or not the particles were crushed.
The results are shown in Table 1.

[Table 1]

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Claims (3)

[Claims] 1. A dispersion is prepared by dispersing water-insoluble inorganic particles in water, and then the acid value of the dispersion is 30 to 1.
20 (solid type) polyvalent carboxylic acid resin is mixed to form a primary coated particle in which the surface of the inorganic particle is coated with a thin film of the polyvalent carboxylic acid resin, and then a dispersion containing a color pigment in this dispersion liquid. After mixing the stabilized emulsion resin,
A method for producing colored particles, characterized in that a metal salt is added to this mixed system to obtain colored inorganic particles having an average particle size of 10 to 200 μm and having a colored coating film formed on the surface. 2. A suede-type coating composition, wherein the colored particles are dispersed as an essential component. 3. The suede paint composition according to claim 2, wherein a colored mica is mixed in the paint.