JP2009051879A - Decorative material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative material comprising colored inorganic particles having a deep color. <P>SOLUTION: The decorative material encapsulates a plurality of closed cells having ≤100 μm diameter as an aggregate and comprises the colored inorganic particles composed of a particle inner layer part having 1-50% porosity and a particle outer layer part having transparency. The colored inorganic particles are fixed with a binder so that at least a part of the particles can visually be checked. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a multicolored decorative material including colored inorganic particles having a deep color.

Conventionally, colored aggregates are widely used for the purpose of imparting aesthetics in the fields of decorative materials, paints, building materials, civil engineering materials, plastic materials, equipment, etc., and the colored aggregates are fixed with a binder. As a result, a decorative decorative material is obtained.
As such a colored aggregate, natural stone particles, or processed particles obtained by coloring substrate particles such as silica sand, cryogenic stone, mica, glass beads, and resin substrates such as colored film pieces and plastic pieces are colored. Artificial particles and the like are generally used (for example, Patent Document 1 and Patent Document 2).

However, since natural stone grains are of natural origin, the hue of the material itself varies, and those having some gloss are very expensive. On the other hand, artificial particles have a constant hue, but are often monotonous in color, and even if these particles are fixed with a binder as an aggregate, there is a risk that the monotonous design will be dotted or assembled. In addition, there is a problem that it is difficult to give a deep and versatile feeling to the resulting decorative material. Further, it is difficult to harmonize the texture and hue of the artificial particles and the binder, and there is a possibility that the different textures of the artificial particles may stand out, and the aesthetic appearance is liable to be impaired.

Japanese Patent Laid-Open No. 7-269062 Japanese Patent Laid-Open No. 2002-179999

  The present invention has been made in view of the above problems, and an object thereof is to obtain a decorative material having a deep color.

As a result of intensive studies to achieve the above object, the present inventor has included a plurality of closed cells having a diameter of 100 μm or less, a particle inner layer portion having a porosity of 1% to 50%, and a particle outer layer having transparency. The inventors have conceived a decorative material using colored inorganic particles composed of parts as an aggregate, and have completed the present invention.
That is, the multicolored pattern decoration material of the present invention has the following characteristics.

1. A decorative material including a binder and aggregate,
The aggregate includes colored inorganic particles including a plurality of closed cells having a diameter of 100 μm or less, a particle inner layer portion having a porosity of 1% to 50%, and a particle outer layer portion having transparency, and the colored inorganic particles A decorative material characterized in that it is fixed with a binding material so that at least a part of the material can be visually recognized.

  In the decorative material of the present invention, the specific colored inorganic particles are arranged on the surface, thereby giving the decorative material partly or entirely the glossiness, depth, and depth of versatility that the colored inorganic particles themselves have. be able to.

  Hereinafter, the best mode for carrying out the present invention will be described in detail.

  The decorative material of the present invention includes a binder and an aggregate. The aggregate includes a plurality of closed cells having a diameter of 100 μm or less as the aggregate, and has a particle inner layer portion having a porosity of 1% to 50%, and has transparency. It includes colored inorganic particles (hereinafter referred to as “colored inorganic particles”) composed of particle outer layer portions, and is fixed with a binder so that at least a part of the colored inorganic particles can be visually recognized.

  The binding material of the present invention is not particularly limited as long as the aggregate can be fixed. For example, acrylic resin, polyester resin, polyether resin, vinyl resin, polyamide resin, phenol resin, urethane resin, epoxy resin, fluororesin, Vinyl acetate resin, acrylic-styrene resin, vinyl acetate-vinyl versatic acid ester resin, polyvinylpyrrolidone resin, polyvinylcaprolactam resin, polyvinyl alcohol resin, polycarbonate resin, ABS resin, AS resin, cellulose resin, acrylic-silicone resin, silicone resin, Binders such as alkyd resin, melamine resin, amino resin and the like in water dispersion type, water soluble type, NAD type, solvent soluble type and solventless type can be used.

  In the present invention, colored inorganic particles are included as the aggregate. Such colored inorganic particles can cause light reflection (diffuse reflection) and refraction due to a plurality of closed cells present in the inner layer of the particle, thereby concentrating the hue of the particle and imparting a deep and deep color. Therefore, it is particularly preferable as an aggregate of the decorative material of the present invention.

Specifically, the ratio of closed cells in the inner layer portion of the particles present in the colored inorganic particles is such that the void ratio is 1% to 50% (preferably 2% to 40%, more preferably 3% to 30%). ). By being in such a range, a hue can be emphasized and a deep color can be provided. When the porosity is less than 1%, the transparency of the inner layer portion of the particle becomes high, and it is difficult to obtain a light reflection / refraction effect, resulting in a monotonous color. When the porosity is larger than 50%, the strength of the particles decreases.
Further, when the number of closed cells in the inner layer of the particle is 1 or less, it is difficult to obtain light reflection (diffuse reflection) / refractive effect, resulting in a monotonous color.

  The diameter of such closed cells is not particularly limited, but is preferably 100 μm or less, more preferably 0.1 μm or more and 80 μm or less, and further preferably 0.2 μm or more and 50 μm or less. If such closed cells having a diameter of 100 μm or less are present at a porosity of 1% or more and 50% or less, closed cells having a diameter of more than 100 μm may be present to such an extent that the effects of the present invention are not impaired. However, when there are too many closed cells having a diameter of more than 100 μm, the light reflection / refraction effect cannot be obtained effectively, and it is difficult to obtain a deep color.

  The thickness of the inner layer portion of the particles is preferably 40.0% or more and 99.8% or less (more preferably 50.0% or more and 99.0% or less) of the thickness of the particles. If it exceeds 99.8%, the hue of the outer layer part of the particle becomes unclear and the strength may be inferior. If it is less than 40.0%, a monotonous hue may occur. In addition, the thickness of a particle | grain is a surface space | interval when the particle | grains set | placed on the horizontal surface with the most stable attitude | position are pinched | interposed into a horizontal surface.

  The particle inner layer portion has closed cells, but communication bubbles may exist to the extent that the effects of the present invention are not impaired. However, if there are too many communicating bubbles, the light reflection / refraction effect cannot be obtained effectively, and it is often difficult to obtain a deep and deep color, and the strength of the particles may also be reduced.

The particle outer layer part in the colored inorganic particles of the present invention is characterized by having transparency. Such an outer layer part of particles facilitates the passage of incident light to the inner layer part of the particle, and also makes the hue of the particles stand out by allowing the reflected light and refracted light from passing through the inner layer part or inner surface layer part of the particle. , Deep and deep colors.
Such transparency of the outer layer portion of the particle is not limited as long as the inner layer portion of the particle can be visually recognized. Specifically, the light transmittance with respect to light having a wavelength of 550 nm is 20% or more and 99% or less (further, 30% or more and 98% or less).
In addition, the light transmittance of an outer layer part of a particle | grain is the value which measured the peeling piece of the outer layer part with the spectrophotometer (the Shimadzu Corporation make, UV-3100).

Furthermore, it is preferable that the outer layer portion of the colored inorganic particles has fewer closed cells than the inner layer portion of the particle. The particle outer layer portion has excellent strength due to fewer closed cells than the particle inner layer portion. Therefore, even if it mixes and stirs, it is hard to be destroyed and it can have the outstanding intensity | strength though it is lightweight as a whole.
Specifically, the porosity of the particle outer layer portion is preferably 10% or less, more preferably 5% or less, and further preferably 1% or less. When the porosity exceeds 10%, the strength may be inferior, the transparency is lowered, and it is disadvantageous in terms of color depth, depth, and the like.

  The thickness of the particle outer layer portion is not particularly limited as long as a deep color can be obtained, but it is 0.1% to 30% (more preferably 0.5% to 25%) of the thickness of the colored inorganic particles. Preferably there is. If it is thinner than 0.1%, it is difficult to obtain the hue of the outer layer part of the particle, and the strength may be inferior. If it is thicker than 30%, a monotonous hue may occur.

  Examples of the shape of the colored inorganic particles include a spherical shape, an elliptical shape, a flake shape, a plate shape, a disc shape, a hemispherical shape, a star shape, a petal shape, a ribbon shape, a starfish shape, an indefinite shape, a polygonal plate shape, and an elliptical plate. Other examples include a flat shape such as a shape, and a rod shape, a needle shape, a spindle shape, and the like. Among these, in the case of a flat shape such as a flake shape or a plate shape, a variety of feelings are more effectively expressed. In the colored inorganic particles of the present invention, it is usually preferable that the particle outer layer part completely covers the particle inner layer part. However, as long as the effects of the present invention are obtained, the particle outer layer part does not necessarily completely cover the particle inner layer part. It is not necessary and may be provided on the front and / or back of the particle.

  The particle diameter of the colored inorganic particles is 0.1 to 10 mm in the case of a spherical shape, 0.1 to 10 mm or less in the case of a flat shape, and further 0.5 to 5 mm in thickness. Is preferred. By having such a particle diameter or thickness, a deep color is easily developed. When the particle diameter or thickness is smaller than 0.1 mm, the deep color unique to the colored inorganic particles of the present invention is hardly expressed effectively. When the particle diameter or thickness is larger than 10 mm, it is difficult to handle as an aggregate. Further, the flat minor axis and major axis are preferably 0.1 mm or more and 50 mm or less, and more preferably 0.3 mm or more and 30 mm or less. In such a case, a unique color can be produced.

  The specific gravity of the colored inorganic particles of the present invention is preferably 0.5 or more and 2.7 or less, although it depends on the components used. The specific gravity of the inorganic particles having no normal closed cells is about 2.0 or more and 4.5 or less. However, since the colored inorganic particles of the present invention have closed cells, they have normal closed cells. It is lighter than inorganic particles that do not. For this reason, the weight load concerning a base material can be reduced and omission, a slip-off, etc. can be suppressed. In addition, costs such as transportation costs can be reduced.

  The specific gravity is a value measured according to JIS Z 8807-1976 Solid Specific Gravity Measurement Method “6. Measurement Method from Volume”.

  The porosity of the colored inorganic particles of the present invention is preferably 0.1% to 50%, more preferably 1% to 40%. Such colored inorganic particles exhibit a deep and deep color and can have excellent strength while being lightweight.

  The components constituting such colored inorganic particles are not particularly limited, and known materials can be used. For example, titanium, aluminum, cerium, neodymium, tungsten, vanadium, lead, zinc, nickel, bismuth Metal elements such as tin and scandium, metalloid elements such as silicon, boron, germanium, arsenic and tellurium, alkali metals such as lithium, sodium, potassium, rubidium, cesium and francium, magnesium, calcium, strontium, barium and radium Metals such as alkaline earth metals, or oxides, chlorides, sulfides, carbonates, silicates, phosphates, nitrates, sulfates, and composites of these metals. Can be mentioned.

In the present invention, color is imparted to the inorganic particles by light reflection (irregular reflection) / refractive effect. However, if necessary, the inorganic particles can be colored by adding a coloring component.
Examples of such coloring components include gold, platinum, silver, iron, copper, manganese, nickel, cobalt, chromium, titanium, zinc, vanadium, zirconium, aluminum, tin, neodymium, cerium, erbium, praseodymium, holmium, and the like. Metals, metal colloids, etc., or oxides, chlorides, sulfides, selenides, carbonates, silicates, phosphates, nitrates, sulfates and composites of these metals, and non-phosphorous, selenium, etc. Examples include metal elements.
Such a coloring component can be applied to the particle inner layer part and / or the particle outer layer part, but in the present invention, it is preferable to apply to the particle outer layer part.

  The colored inorganic particles of the present invention are not particularly limited as long as they have the particle inner layer portion of the present invention inside the particle and the particle outer layer portion of the present invention outside the particle inner layer portion of the present invention. For example, as long as the effect of the present invention is not impaired, some protective layer may be laminated on the outside of the particle outer layer portion.

  As the protective layer, for example, performance such as water resistance, acid resistance, base resistance, light resistance, weather resistance, wear resistance, antibacterial property, etc. can be imparted. Examples include inorganic binders such as water glass, low-melting glass, silicon resin, alkoxysilane, and silane coupling materials, and organic binders such as acrylic resin, acrylic silicon resin, and fluororesin. , Antioxidants, antiseptics, antifungal agents, algae inhibitors, antibacterial agents, flame retardants, insecticides, chemical adsorbents, hygroscopic substances, fragrances, catalysts, photocatalysts, phosphorescent agents, fluorescent agents, glitter pigments Etc. can also be mixed.

The particle diameter (thickness, long diameter, short diameter), porosity, closed cell diameter, and particle outer layer thickness are values observed and calculated with a scanning electron microscope (manufactured by JEOL Ltd .: JSM5301LV).
Specifically, the diameter of the closed cell and the thickness of the outer layer portion of the particle are values obtained by observing the cross section of the particle with a scanning electron microscope (JEOL: JSM5301LV), and the porosity is the closed cell in the observed micrograph. It is a value calculated from the area. However, the porosity is a value obtained by measuring and calculating a closed cell having a diameter of 0.1 μm or more.

  Such colored inorganic particles can be obtained, for example, by a method in which the surface of porous inorganic particles having a plurality of closed cells is coated with an inorganic binder to form a transparent particle outer layer portion.

Examples of porous inorganic particles used in such a method include metal elements such as titanium, aluminum, cerium, neodymium, tungsten, vanadium, lead, zinc, nickel, bismuth, tin, scandium, silicon, boron, germanium, and arsenic. Metalloid elements such as tellurium, alkali metals such as lithium, sodium, potassium, rubidium, cesium and francium, metals such as alkaline earth metals such as magnesium, calcium, strontium, barium and radium, or oxides of these metals Porous inorganic particles mainly composed of chlorides, sulfides, carbonates, silicates, phosphates, nitrates, sulfates, and composites thereof, or natural or synthetic clay minerals.
The shape is flat, for example, spherical, elliptical, flake-shaped, plate-shaped, disc-shaped, hemispherical, star-shaped, petal-shaped, ribbon-shaped, starfish-shaped, irregular-shaped, polygonal-plate-shaped, elliptical-plate-shaped, etc. In addition, a rod shape, a needle shape, a spindle shape, and the like are included.
The particle diameter of the porous inorganic particles is 0.1 to 10 mm in the case of a spherical shape, and 0.1 to 10 mm in thickness in the case of a flat shape (preferably 0.5 to 5 mm). The minor axis and major axis may be about 0.1 mm to 50 mm, preferably about 0.3 mm to 30 mm.

  Such porous inorganic particles include, for example, metal-containing fine particles such as the above metals, or oxides, chlorides, sulfides, carbonates, silicates, phosphates, nitrates, sulfates, and aluminates of the above metals. Metal-containing solutions, metal alkoxides, etc. can be obtained by applying heat treatment methods, drying methods, sol-gel methods, hydration curing methods, hydrothermal synthesis methods, gas phase methods, etc., and commercially available products can also be used. it can.

  As a heat treatment method, porous inorganic particles can be obtained by heat treatment usually at 200 ° C. or more and 1500 ° C. or less.

For example, in the method using the metal-containing fine particles as a heat treatment method, the metal-containing fine particles, the fixing material, and the solvent are mixed to form a particle aggregate of the metal-containing fine particles, and the particle aggregate is 200 ° C. or higher and 1500 ° C. or lower. Can be obtained by heat treatment. Furthermore, in addition to the metal-containing fine particles, the fixing material, and the solvent, additives such as a flux, a curing agent, an oxidizing agent, a reducing agent, a dispersing agent, a complexing agent, and a coloring component may be mixed. Examples of the method for forming the particle aggregate include a granulation method, a dropping method, and a mold forming method. In particular, a dropping method and a mold forming method are preferable. Furthermore, the aggregate formed as needed can be crushed and cut. The shape of the particles thus produced is, for example, spherical or elliptical, flake shaped, plate-shaped, disc-shaped, hemispherical, star-shaped, petal-shaped, ribbon-shaped, starfish-shaped, indefinite-shaped, polygonal-plate-shaped, In addition to a flat shape such as an elliptical plate shape, a rod shape, a needle shape, a spindle shape and the like can be mentioned, and the shape can be adjusted to a desired shape.
In the method using such metal-containing fine particles, closed cells are generated by the adhering material, the solvent, etc. that have entered the particle gap, and closed cells are generated by the voids that exist between the particles of the particle aggregate. In some cases, desired porous inorganic particles can be produced by appropriately selecting the size of the metal-containing fine particles and additives such as a fixing material and a solvent.
The size of the metal-containing fine particles is preferably 200 μm or less, more preferably 150 μm or less, and even more preferably 100 μm or less. In such a case, closed cells are likely to be generated due to gaps between particles or the like. In addition, closed cells with a high porosity and a size of 50 μm or less tend to be generated. The particle aggregate has a particle diameter of 0.1 to 10 mm when it is spherical, and a thickness of 0.1 to 10 mm when flat, preferably 0.5 to 5 mm. The minor axis and the major axis are preferably 0.1 mm or more and 50 mm or less (preferably 0.3 or more and 30 mm or less).
The treatment temperature is usually 200 ° C. or more and 1500 ° C. or less, more preferably 400 ° C. or more and 1300 ° C. or less. The treatment time is usually 1 minute to 120 minutes or less to obtain porous inorganic particles. Can do.

Examples of the fixing material include starch, modified starch, casein, soy protein, cellulose derivative, guar gum, gati gum, tragacanth gum, xanthan gum, pullulan, cassia gum, arabinogalactan, sclerogum, carrageenan, agar, locust bean gum, tara gum, gum arabic , Tamarind gum, gellan gum, agar, gelatin, pectin, locust bean gum, xanthan gum, alginic acid, sodium alginate, polyacrylamide resin, polyvinyl alcohol resin, polyvinyl pyrrolidone resin, acrylic resin, vinyl resin, vinyl acetate resin, urethane resin, epoxy resin Etc.
Examples of the solvent include water, alcohols, polyols, ketones, polyethers, esters, carboxylic acids, polycarboxylic acids, celluloses, saccharides, sulfonic acids, amino acids, amines, etc. In the invention, in particular, aliphatic alcohols such as water, methanol, ethanol, propanol, butanol, pentanol and hexanol, and aliphatic polyhydric alcohols such as ethylene glycol, propanediol, butanediol, glycerin, polyethylene glycol and polypropylene glycol are used. It is preferable.

  In the drying method, for example, as a method using the above-mentioned metal-containing solution, a metal-containing solution and, if necessary, an acid, a solvent, a fixing material, a curing agent, an oxidizing agent, a reducing agent, a complexing agent, a catalyst, a coloring component, etc. Porous inorganic particles can be obtained by mixing and processing at a temperature of usually 20 ° C. or higher and 200 ° C. or lower. In addition, the treatment time may be appropriately set depending on the selected metal-containing solution and the like, and is usually about 1 minute to 24 hours.

  In the sol-gel method, porous inorganic particles are obtained by drying a solid component formed by adding an acid, a solvent, a curing agent, a catalyst, a coloring component, or the like to a metal-containing solution, a metal alkoxide, or the like as necessary. Can do.

Examples of the inorganic binder to be coated to form the particle outer layer having transparency include silicon resin, glass, water glass, low melting glass, glaze, alkoxysilane, silane coupling material, and the like. Depending on the case, a mixture of coloring components and the like may be used. In particular, in the present invention, it is preferable to use glass, glaze, or the like as the inorganic binder.
Other inorganic binders include UV absorbers, antioxidants, antiseptics, antifungal agents, anti-algae agents, antibacterial agents, insecticides, flame retardants, chemical adsorbents, hygroscopic substances, fragrances, catalysts, You may mix components, such as a photocatalyst, a luminous agent, a fluorescent agent, a luster pigment, a thickener, and an organic binder.

The method for coating the porous inorganic particles with the inorganic binder is not particularly limited, and for example, the porous inorganic particles can be coated by a treatment such as a heat treatment method, a drying method, a sol-gel method, or a vapor deposition method.
In the heat treatment method, an inorganic binder can be mixed with porous inorganic particles and heat treated at 200 ° C. or higher and 1500 ° C. or lower, more preferably 400 ° C. or higher and 1300 ° C. or lower. As such an inorganic material, commonly used colored glass or glaze may be used.
In the drying method, the inorganic binder can be obtained by coating the surface of the porous inorganic particles and drying and curing at about 20 ° C. or more and 200 ° C. or less.
In the sol-gel method, an inorganic binder can be mixed with porous inorganic particles and processed by a conventional method.
In this invention, it is preferable to process by the heat processing method from viewpoints, such as ease of manufacture, provision of a color, and intensity | strength of the colored inorganic particle obtained.

  Moreover, in this invention, the process of manufacturing a porous inorganic particle (particle inner layer part) and the process of manufacturing a particle outer layer part can also be processed simultaneously.

For example, in a method using metal-containing fine particles as a heat treatment method, an aggregate of metal-containing fine particles is formed, an inorganic binder is deposited on the surface of the metal-containing fine particle aggregate, and heat treatment is performed at 200 ° C. or higher and 1500 ° C. or lower. And the like.
Specifically, first, metal-containing fine particles, a fixing material, and a solvent are mixed to form a particle aggregate of metal-containing fine particles. Here, additives such as a fluxing agent, a curing agent, an oxidizing agent, a reducing agent, a dispersing agent, a complexing agent, and a coloring component may be mixed as necessary.
The size of the metal-containing fine particles is preferably 200 μm or less, more preferably 150 μm or less, and even more preferably 100 μm or less. In such a case, closed cells are more likely to be generated than the gaps between the particles. In addition, closed cells with a high porosity and a size of 50 μm or less tend to be generated.
Examples of the method for forming the particle aggregate include a granulation method, a dropping method, and a mold forming method. In particular, a dropping method and a mold forming method are preferable. Furthermore, the aggregate formed as needed can be further crushed and cut. The shape of the particles thus produced is, for example, spherical or elliptical, flake shaped, plate-shaped, disc-shaped, hemispherical, star-shaped, petal-shaped, ribbon-shaped, starfish-shaped, indefinite-shaped, polygonal-plate-shaped, In addition to a flat shape such as an elliptical plate shape, a rod shape, a needle shape, a spindle shape and the like can be mentioned, and the shape can be adjusted to a desired shape. As the particle diameter, in the case of a spherical shape, the particle diameter is 0.1 to 10 mm, and in the case of a flat shape, the thickness is 0.1 mm to 10.0 mm (preferably 0.5 mm to 5 mm), short. The diameter and major axis are preferably about 0.1 mm to 50 mm, preferably about 0.3 mm to 30 mm.
Next, colored inorganic particles can be obtained by depositing an inorganic binder on the surface of the metal-containing fine particle aggregate and heat-treating it at 200 ° C. or higher and 1500 ° C. or lower. The treatment temperature is usually 200 ° C. or more and 1500 ° C. or less, more preferably 400 ° C. or more and 1300 ° C. or less, and the treatment time is usually 1 minute to 120 minutes to obtain colored inorganic particles. Can do.

  In the method using a metal-containing solution as a drying method, a metal-containing solution and, if necessary, an acid, a solvent, a fixing material, a curing agent, an oxidizing agent, a reducing agent, a complexing agent, a catalyst, a coloring component, and the like are mixed. Inorganic precursors are further mixed with the precursor obtained in this way, and colored inorganic particles can be obtained by processing at a temperature of usually 20 ° C. or higher and 200 ° C. or lower. In addition, the treatment time may be appropriately set depending on the selected metal-containing solution and the like, and is usually about 1 minute to 24 hours.

  In such a method, the manufacturing process of the colored inorganic particles of the present invention can be shortened, and the inner layer portion of the particle and the outer layer portion of the particle can be combined to give a deeper color. In particular, the heat treatment method is preferable because colored inorganic particles having higher strength can be obtained.

  In the present invention, as the aggregate other than the colored inorganic particles, at least one selected from a pulverized natural stone, a pulverized ceramic, and a colored aggregate can be used. By using such an aggregate in combination with colored inorganic particles, the versatility of the decorative material can be enhanced. The hue of the aggregate may be an achromatic color or a chromatic color, and may have transparency as long as the effect of the present invention is not impaired. Specifically, for example, marble, granite, serpentine, granite, fluorite, cryolite, feldspar, quartzite, silica sand, etc. , Resin beads, resin chips, metal grains, wood powder, etc., and those whose surfaces are colored and coated.

  The decorative material of the present invention can be manufactured, for example, by the following methods. According to this method, the target decorative material can be stably produced, and it is also preferable from the standpoint of effect.

1. A method of applying a binder and a composition containing colored inorganic particles to a substrate and drying the composition,
2. A method of applying a binder and a composition containing colored inorganic particles to a substrate, and then partially removing the composition so that the colored inorganic particles can be visually recognized, followed by drying;
3. A method of applying a composition containing a binder to a substrate and then dispersing colored inorganic particles;
4). A method of applying a binder, a composition containing colored inorganic particles to a substrate, and further dispersing colored inorganic particles;
5). A method of applying a binder and a composition containing colored inorganic particles in a mold and drying the composition, followed by demolding,
6). A method in which colored inorganic particles are scattered on the bottom surface in a mold, and a composition containing a binder is applied to the entire mold and dried, and then demolded.
Etc. can be manufactured.

  The above 1. ~ 4. As the base material, gypsum board, plywood, concrete, mortar, porcelain tile, fiber mixed cement board, cemented calcium silicate board, slag cement perlite board, ALC board, siding board, extrusion board, steel sheet, plastic board, synthetic paper And fiber cloth or nonwoven fabric made of fibers such as glass fiber, polyester fiber, and vinylon fiber, ceramic paper, glass cloth, and mesh. The surface of these base materials may have been subjected to some surface treatment (for example, putty, filler, etc.), or may already have a coating film formed thereon, or have already been pasted with wallpaper or the like. Good.

In addition, the above 5. ~ 6. For example, a mold made of silicon resin, urethane resin, metal or the like, or a mold provided with a release paper can be used. In the above method, since the mold frame side is the surface of the decoration material, a desired uneven pattern can be imparted to the surface of the decoration material by adjusting the shape inside the mold frame. When the colored inorganic glass particles are scattered on the bottom surface in the mold, a known or commercially available spreader or the like may be used.

  Above 1. ~ 6. When the composition is applied, a method using means such as spray, roller, trowel, reciprocator, coater, and pouring can be employed. In addition to the above-described components, the composition includes, for example, fibers, thickeners, film-forming aids, leveling agents, wetting agents, plasticizers, antifreeze agents, pH adjusters, preservatives, An antifungal agent, an anti-algae agent, an antibacterial agent, a dispersant, an antifoaming agent, an adsorbent, a crosslinking agent, an ultraviolet absorber, an antioxidant, a catalyst, an antiblocking agent and the like may be contained.

  2. The removal of the composition and the like may be performed before or after the composition is cured, but in the present invention, it is preferably performed before the composition is cured. The removal method can be performed in the same manner as known washing out, and can be appropriately used according to the hardness (cured state) of the composition, such as a roller, a trowel, a file, or sandpaper. At this time, if the composition is removed so that a part of the colored inorganic particles is exposed, a decorative material having a deeper color can be obtained.

3. above. After the colored inorganic aggregate is dispersed, the colored inorganic aggregate can be pressure-bonded within a range not impairing the effects of the present invention. The colored inorganic aggregate can be more firmly fixed by pressure bonding. Examples of the pressure bonding method include a method using a roller, a trowel, a press machine and the like.

  When producing the decorative material, for example, a reinforcing material (woven fabric, non-woven fabric, ceramic paper, synthetic paper, glass cloth, mesh, etc.) can be laminated as long as the effects of the present invention are not impaired. In addition, various changes can be made based on the knowledge of those skilled in the art.

  Specifically, the decorative material of the present invention can be applied to finishing walls, partitions, doors, ceilings, etc. in houses, condominiums, schools, hospitals, stores, offices, factories, warehouses, canteens, and the like.

  Examples are given below to clarify the features of the present invention.

(Manufacture of colored inorganic particles)
(Production Example 1)
An aqueous solution containing 50% by weight of glass powder (particle diameter: 15 μm, porosity: 0%, specific gravity: 2.7) and 1% by weight of sodium alginate is dropped into a solution containing 5% by weight of calcium chloride, and obtained after filtration. The obtained particles were dried at 50 ° C. for 3 hours to obtain spherical glass particles having a particle diameter of 3.5 mm. 100 parts by weight of the glass particles, 0.6 parts by weight of carboxymethyl cellulose, 50 parts by weight of a transparent green glaze (coloring component: chromium oxide), and 20 parts by weight of water are mixed and baked for 15 minutes at 800 ° C. Particle 1 was obtained.
The obtained colored inorganic particles 1 showed a deep and deep color in which the particle outer layer portion had a transparent green color.
The colored inorganic particles 1 have a porosity of 9% (a porosity of the inner layer portion of the particle: 15% (a plurality of closed cells having an average size of 2 μm), a porosity of the outer layer portion of the particle: 1%), a specific gravity of 2.3, and an average. The particle size was 2.6 mm. Further, the particle outer layer portion had a thickness of 0.16 mm (6% of the average particle diameter) and a light transmittance of 66%.

The average particle diameter, porosity, closed cell diameter, and particle outer layer thickness are values measured with a scanning electron microscope (JEOL: JSM5301LV).
The specific gravity is a value measured according to JIS Z 8807-1976 Solid Specific Gravity Measurement Method “6. Measurement Method from Volume” (solution: isopropyl alcohol).
The light transmittance of the particle outer layer portion is a value obtained by measuring the peeled piece of the outer layer portion with a spectrophotometer (manufactured by Shimadzu Corporation, UV-3100).

(Production Example 2)
An aqueous solution containing 50% by weight of glass powder (particle diameter: 15 μm, porosity: 0%, specific gravity: 2.7) and 1% by weight of sodium alginate is dropped into a solution containing 5% by weight of calcium chloride, and obtained after filtration. The obtained particles were dried at 50 ° C. for 3 hours to obtain spherical glass particles having a particle diameter of 3.5 mm. 100 parts by weight of the glass particles, 0.6 parts by weight of carboxymethyl cellulose, 300 parts by weight of transparent green glaze (coloring component: chromium oxide), and 20 parts by weight of water are mixed and baked at 800 ° C. for 15 minutes, and colored inorganic Particle 2 was obtained.
The obtained colored inorganic particles 2 showed a deep and deep color in which the outer layer portion of the particles had a transparent green color.
The colored inorganic particles 2 have a porosity of 4% (a porosity of the inner layer part of the particle: 13% (a plurality of closed cells having an average size of 2 μm), a porosity of the outer part of the particle: 1%), a specific gravity of 2.5, and an average. The particle diameter was 3.0 mm. Further, the particle outer layer portion had a thickness of 0.6 mm (20% of the average particle diameter) and a light transmittance of 47%.

(Production Example 3)
A mixed solution of 50 parts by weight of glass powder (particle diameter: 15 μm, porosity: 0%, specific gravity: 2.7) and 100 parts by weight of No. 3 water glass solution was dropped into 1M hydrochloric acid, and obtained after filtration. The particles were dried at 50 ° C. for 3 hours to obtain spherical glass particles having a particle diameter of 4.4 mm. 100 parts by weight of the glass particles, 0.6 parts by weight of carboxymethylcellulose, 40 parts by weight of a transparent green glaze (coloring component: chromium oxide), and 20 parts by weight of water are mixed and baked at 800 ° C. for 15 minutes. Particle 3 was obtained.
The obtained colored inorganic particles 3 showed a deep and deep color in which the particle outer layer portion had a transparent green color.
The colored inorganic particles 3 have a porosity of 8% (a porosity of the inner layer portion of the particle: 11% (a plurality of closed cells having an average size of 4 μm), a porosity of the outer portion of the particle: 1%), a specific gravity of 2.4, and an average. The particle diameter was 4 mm. The particle outer layer portion had a thickness of 0.2 mm (5% of the average particle diameter) and a light transmittance of 66%.

(Production Example 4)
An aqueous solution containing 50% by weight of glass powder (particle diameter: 15 μm, porosity: 0%, specific gravity: 2.7) and 1% by weight of sodium alginate is dropped into a solution containing 5% by weight of calcium chloride, and obtained after filtration. The obtained particles were dried at 50 ° C. for 3 hours to obtain spherical glass particles having a particle size of 5.5 mm. 100 parts by weight of this glass grain, 0.6 parts by weight of carboxymethyl cellulose, 25 parts by weight of transparent blue glaze (coloring component: cobalt oxide), 30 parts by weight of transparent green glaze (coloring component: chromium oxide), water 20 Weight parts were mixed and baked at 800 ° C. for 15 minutes to obtain colored inorganic particles 4.
The obtained colored inorganic particles 4 showed a deep and deep color in which the outer layer portion of the particles had a clear blue-green color.
The colored inorganic particles 4 have a porosity of 9% (a porosity of the inner layer portion of the particle: 13% (a plurality of closed cells having an average size of 2 μm), a porosity of the outer portion of the particle: 1%), a specific gravity of 2.3, and an average. The particle diameter was 4.8 mm. The outer layer portion of the particle had a thickness of 0.29 mm (6% of the average particle diameter) and a light transmittance of 56%.

(Production Example 5)
An aqueous solution containing 50% by weight of glass powder (particle diameter: 15 μm, porosity: 0%, specific gravity: 2.7) and 1% by weight of sodium alginate is dropped into a solution containing 5% by weight of calcium chloride, and obtained after filtration. The obtained particles were dried at 50 ° C. for 3 hours to obtain spherical glass particles having a particle size of 5.5 mm. 100 parts by weight of the glass particles, 0.6 parts by weight of carboxymethylcellulose, 50 parts by weight of a transparent blue glaze (coloring component: cobalt oxide), and 20 parts by weight of water are mixed and baked at 800 ° C. for 15 minutes, and colored inorganic matter Particles 5 were obtained.
The obtained colored inorganic particles 5 showed a deep and deep color in which the particle outer layer portion had a transparent blue color.
The colored inorganic particles 5 have a porosity of 10% (a porosity of the inner layer portion of the particle: 13% (a plurality of closed cells having an average size of 2 μm), a porosity of the outer layer portion of the particle: 1%, a diameter (average) Size) 2 μm with a plurality of closed cells), specific gravity 2.3, average particle diameter 4.8 mm, outer particle layer thickness 0.27 mm (6% of average particle diameter) and light transmittance 55% It was.

(Production Example 6)
An aqueous solution containing 50% by weight of glass powder (particle size: 160 μm, porosity: 0%, specific gravity 2.7) and 1% by weight of sodium alginate was dropped into a solution containing 5% by weight of calcium chloride, and after filtration, obtained The obtained particles were dried at 50 ° C. for 3 hours to obtain spherical glass particles having a particle size of 6.5 mm. 100 parts by weight of the glass particles, 0.6 parts by weight of carboxymethyl cellulose, 50 parts by weight of a transparent green glaze (coloring component: chromium oxide), and 20 parts by weight of water are mixed and baked for 15 minutes at 800 ° C. Particle 6 was obtained.
The obtained colored inorganic particles 6 showed a deep and deep color in which the outer layer portion of the particles had a transparent green color.
The colored inorganic particles 6 have a porosity of 10% (a porosity of the inner layer part of the particle: 15% (a plurality of closed cells having an average size of 26 μm), a porosity of the outer layer part of the particle: 1%), a specific gravity of 2.2, an average The particle diameter was 4.9 mm. Further, the particle outer layer portion had a thickness of 0.3 mm (6% of the average particle diameter) and a light transmittance of 54%.

(Production Example 7)
100 parts by weight of silicon oxide (particle diameter: 5 μm, porosity: 0%, specific gravity 2.2), 40 parts by weight of aluminum oxide (particle diameter: 5 μm, porosity: 0%, specific gravity 4.0), iron oxide 4 weights Parts (particle size: 1 μm, porosity: 0%, specific gravity 5.2), potassium carbonate 8 parts by weight (particle size: 3 μm, porosity: 0%, specific gravity 2.3), bentonite 6 parts by weight (particle size: 1 μm, porosity 0%, specific gravity 3.5) and 100 parts by weight of water were kneaded to form spherical particles of 5 mm. 100 parts by weight of the obtained spherical particles, 0.6 parts by weight of carboxymethylcellulose, 55 parts by weight of a transparent green glaze (coloring component: chromium oxide), 20 parts by weight of water are mixed and baked at 1200 ° C. for 15 minutes, Colored inorganic particles 7 were obtained.
The obtained colored inorganic particles 7 showed a deep and deep color in which the outer layer portion of the particles had a transparent green color.
The colored inorganic particles 7 have a porosity of 12% (a porosity of the inner layer portion of the particle: 19% (a plurality of closed cells having an average size of 5 μm), a porosity of the outer layer portion of the particle: 1%), a specific gravity of 2.3, and an average. The particle diameter was 4.2 mm. The particle outer layer portion had a thickness of 0.3 mm (7% of the average particle diameter) and a light transmittance of 54%.

(Production Example 8)
After mixing 100 parts by weight of tetraethoxysilane with 45 parts by weight of ethanol and 25 parts by weight of 5M hydrochloric acid, the mixture was stirred at 50 ° C. for 30 minutes, dried at 50 ° C. for 2 hours, then at 100 ° C. for 1 hour, and then 200 ° C. Was fired for 1 hour to obtain a silica gel powder having a particle diameter of 2 mm, a porosity of 40% (closed cells: 35%, open cells: 65%), and a specific gravity of 1.3.
100 parts by weight of the obtained silica gel powder, 1.5 parts by weight of carboxymethyl cellulose, 200 parts by weight of a transparent green glaze (coloring component: chromium oxide) and 150 parts by weight of water are mixed and baked at 800 ° C. for 15 minutes. Colored inorganic particles 8 were obtained.
The obtained colored inorganic particles 8 showed a deep color in which the particle outer layer portion had a transparent green color.
The colored inorganic particles 8 have a porosity of 21% (a porosity of the inner layer part of the particle: 40% (a plurality of closed cells having an average size of 0.2 μm), a porosity of the outer layer part of the particle: 1%), and a specific gravity of 2. The average particle size was 0 and 2.4 mm. The particle outer layer portion had a thickness of 0.24 mm (10% of the average particle diameter) and a light transmittance of 59%.

(Production Example 9) An aqueous solution containing 50% by weight of glass powder (particle size: 15 μm, porosity: 0%, specific gravity 2.7) and 1% by weight of sodium alginate is a mold having a thickness of 1 mm, a major axis of 7 mm, and a minor axis of 4 mm. After casting into a frame and forming into a plate shape, a solution containing 5% by weight of calcium chloride was sprayed and dried at 50 ° C. for 3 hours to obtain flake shaped glass particles. 100 parts by weight of the glass particles, 0.6 parts by weight of carboxymethylcellulose, 30 parts by weight of a transparent green glaze (coloring component: chromium oxide), and 20 parts by weight of water are mixed and baked at 800 ° C. for 15 minutes to give colored inorganic Particles 9 were obtained.
The obtained colored inorganic particles 9 showed a deep and deep color in which the particle outer layer portion had a transparent green color.
The colored inorganic particles 9 have a porosity of 4% (a porosity of the inner layer part of the particle: 13% (a plurality of closed cells having an average size of 2 μm), a porosity of the outer part of the particle: 1%), a specific gravity of 2.5, and a thickness. The thickness was 0.7 mm, the particle major axis was 5.0 mm, and the minor axis was 3 mm. The particle outer layer portion had a thickness of 0.1 mm (14% of the thickness) and a light transmittance of 68%.

(Production Example 10) 100 parts by weight of silicon oxide (particle diameter: 5 μm, porosity: 0%, specific gravity 2.2), 40 parts by weight of aluminum oxide (particle diameter: 5 μm, porosity: 0%, specific gravity 4.0) , 4 parts by weight of iron oxide (particle size: 1 μm, porosity: 0%, specific gravity 5.2), 8 parts by weight of potassium carbonate (particle size: 3 μm, porosity: 0%, specific gravity 2.3), bentonite 6 weights Parts (particle diameter: 1 μm, porosity: 0%, specific gravity: 3.5) and 300 parts by weight of water were mixed, poured into a mold having a thickness of 1.5 mm, a major axis of 7 mm, and a minor axis of 4 mm, and molded into a plate shape. Drying at 3 ° C. for 3 hours gave flake shaped particles. 100 parts by weight of the particles, 0.6 parts by weight of carboxymethylcellulose, 50 parts by weight of a transparent green glaze (coloring component: chromium oxide), and 20 parts by weight of water are mixed and fired at 1200 ° C. for 15 minutes to give colored inorganic particles. 10 was obtained.
The obtained colored inorganic particles 10 showed a deep and deep color in which the particle outer layer portion had a transparent green color.
The colored inorganic particles 10 have a porosity of 12% (a porosity of the inner layer part of the particle: 19% (a plurality of closed cells having an average size of 5 μm), a porosity of the outer layer part of the particle: 1%), a specific gravity of 2.3, and a thickness. Was 0.8 mm, the particle major axis was 5 mm, and the minor axis was 3 mm. The particle outer layer portion had a thickness of 0.13 mm (16% of the thickness) and a light transmittance of 67%.

(Manufacture of decorative materials)
(Example 1)
A decorative material composition prepared by adding 200 parts by weight of a cryolite with an average particle diameter of 50 μm and 50 parts by weight of colored inorganic particles 1 as an aggregate to 100 parts by weight of an acrylic styrene resin emulsion is applied to a slate plate with a thickness of 3 mm. It was applied so that Next, the colored inorganic particles 1 are dispersed so as to be 300 g / m ^2, and the colored inorganic particles are immediately embedded in the coating liquid using a roller until the particle tops remain on the surface, and then dried. A decorative material 1 was obtained. Since the decorative material 1 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, it was possible to obtain a sense of depth (three-dimensional effect) in the entire decorative material.

(Example 2)
A decorative material 2 was obtained in the same manner as in Example 1 except that the colored inorganic particles 2 were used in place of the colored inorganic particles 1 and the coating thickness of the decorative material composition was 5 mm. Since the decorative material 2 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained on the entire decorative material.

(Example 3)
A decorative material 3 was obtained in the same manner as in Example 1 except that the colored inorganic particles 3 were used in place of the colored inorganic particles 1 and the coating thickness of the decorative material composition was 5 mm. Since the decorative material 3 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained on the entire decorative material.

Example 4
A decorative material 4 was obtained in the same manner as in Example 1 except that the colored inorganic particles 4 were used in place of the colored inorganic particles 1 and the coating thickness of the decorative material composition was 5 mm. Since the decorative material 4 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained in the entire decorative material.

(Example 5)
A decorative material 5 was obtained in the same manner as in Example 1 except that the colored inorganic particles 5 were used in place of the colored inorganic particles 1 and the coating thickness of the decorative material composition was 5 mm. Since the decorative material 4 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained in the entire decorative material.

(Example 6)
A decorative material 6 was obtained in the same manner as in Example 1 except that the colored inorganic particles 6 were used in place of the colored inorganic particles 1 and the coating thickness of the decorative material composition was 5 mm. Since the decorative material 4 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained in the entire decorative material.

(Example 7)
A decorative material 7 was obtained in the same manner as in Example 1 except that the colored inorganic particles 7 were used in place of the colored inorganic particles 1 and the coating thickness of the decorative material composition was 5 mm. Since the decorative material 7 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, it was possible to obtain a sense of depth (three-dimensional effect) on the entire decorative material.

(Example 8)
A decorative material 8 was obtained in the same manner as in Example 1 except that the colored inorganic particles 8 were used in place of the colored inorganic particles 1. Since the decorative material 8 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained on the entire decorative material.

Example 9
A decorative material 9 was obtained in the same manner as in Example 1 except that the colored inorganic particles 9 were used in place of the colored inorganic particles 1. Since the decorative material 9 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, it was possible to obtain a sense of depth (three-dimensional effect) in the entire decorative material.

(Example 10)
A decorative material 10 was obtained in the same manner as in Example 1 except that the colored inorganic particles 10 were used in place of the colored inorganic particles 1. Since the decorative material 10 can visually recognize the glossiness, depth, and depth of the particle portion exposed on the surface, and the pattern of the embedded particles from the surface, a feeling of depth (three-dimensional effect) can be obtained on the entire decorative material.

(Example 11)
A decorative material composition prepared by adding 200 parts by weight of a cryolite with an average particle diameter of 50 μm and 50 parts by weight of colored inorganic particles 1 as an aggregate to 100 parts by weight of an acrylic styrene resin emulsion is applied to a slate plate with a thickness of 3 mm. It was applied so that Before the decorative composition was dried, the surface of the coating solution was washed away with a urethane roller containing water, thereby removing the resin emulsion and cryogenic stone covering the colored inorganic particles in the decorative composition. Then, the moisture of the surface was removed immediately using the dried roller, and the decoration material 11 was obtained by making it dry. The decorative material 11 had a glossy, deep, and deep variety of particle portions exposed on the surface. Moreover, since the pattern of the buried particles can be visually recognized from the surface, a feeling of depth (three-dimensional effect) can be obtained in the entire decoration material.

Example 12
A decorative material 12 was obtained in the same manner as in Example 11 except that the colored inorganic particles 9 were used in place of the colored inorganic particles 1. The decorative material 12 had the glossiness, depth, and depth of the particle portion exposed on the surface. Moreover, since the pattern of the buried particles can be visually recognized from the surface, a feeling of depth (three-dimensional effect) can be obtained in the entire decoration material.

(Example 13)
A decorative material composition prepared by adding 200 parts by weight of a cryolite with an average particle diameter of 50 μm and 50 parts by weight of colored inorganic particles 1 as an aggregate to 100 parts by weight of an acrylic styrene resin emulsion is applied to a slate plate with a thickness of 3 mm. The decorative material 13 was obtained. The decorative material 13 was able to obtain a sense of depth (three-dimensional effect) in the entire decorative material by the embedded particle pattern that was visible from the surface.

(Example 14)
A decorative material 14 was obtained in the same manner as in Example 13 except that the colored inorganic particles 9 were used in place of the colored inorganic particles 1. The decorative material 14 was able to obtain a sense of depth (three-dimensional effect) in the entire decorative material by the embedded particle pattern that was visible from the surface.

(Example 15)
A resin composition prepared by adding 200 parts by weight of silica sand as an aggregate to 100 parts by weight of an acrylic styrene resin emulsion was applied to a slate plate to a thickness of 3 mm, and then the resin composition was not dried. Then, 20 parts by weight of the colored inorganic particles 1 are sprayed on the resin composition based on 100 parts by weight of the resin composition, and the colored inorganic particles 1 are immediately attached to the resin composition by using a roller. After embedding to the extent that remains on the surface, the decorative material 15 was obtained by drying. The decorative material 15 had a glossy, deep, and deep variety of particle portions exposed on the surface.

(Example 16)
100 parts by weight of epoxy resin, 200 parts by weight of cryogenic stone with an average particle diameter of 50 μm as aggregate, and 50 parts by weight of colored inorganic particles 1 on the inner surface of a silicone resin mold (length 300 mm × width 300 mm × depth 5 mm) The composition for decoration material produced by adding was poured and smoothed using a trowel. After drying at 23 ° C. for 24 hours, the decorative material 16 was obtained by demolding. This decoration material 16 was able to obtain a sense of depth (three-dimensional effect) in the entire decoration material due to the embedded particle pattern that was visible from the surface.

(Example 17)
Colored inorganic particles 9 are dispersed on the inner surface of a silicone resin mold (length 300 mm × width 300 mm × depth 5 mm) using a spreader, and 100 parts by weight of epoxy resin is a cryogenic stone having an average particle diameter of 50 μm as an aggregate. The composition for a decorative material produced by adding 200 parts by weight of No. was poured and smoothed using a trowel. After drying at 23 ° C. for 24 hours, the mold was removed to obtain a decorative material 17. The decorative material 17 had a glossy, deep, and deep variety of particle portions exposed on the surface. Moreover, the depth of the decoration material (three-dimensional effect) was able to be obtained by the pattern of the embedded particle | grains visible from the surface.

(Comparative Example 1)
A decorative material composition prepared by adding 200 parts by weight of cryogenic stone as an aggregate and 50 parts by weight of spherical transparent red glass particles (diameter 2 mm) to 100 parts by weight of an acrylic styrene resin emulsion was applied to the slate. Before the decorative composition is dried, the resin emulsion and cold water stone (or / and / or stones) covering the colored glass particles in the decorative composition by washing the surface of the decorative composition with a urethane roller containing water. And silica sand) were removed. Then, the decorative material 18 was obtained by removing the water | moisture content of the coating liquid surface immediately using the dried roller, and making it dry.
The decorative material 18 was only dotted with monotonous colored particles, and a colorful design with a sense of depth and depth could not be obtained.

(Comparative Example 2)
A composition for a decorative material produced by adding 200 parts by weight of cold water stone and 50 parts by weight of gravel (diameter 3 mm) as an aggregate to 100 parts by weight of an acrylic styrene resin emulsion was applied to the slate. A resin emulsion and chlorite (or / and quartz sand) covering the gravel in the composition for decorative material by washing the surface of the composition for decorative material with a urethane roller containing water before the composition for decorative material is dried. ) Was removed. Then, the decorative material 19 was obtained by removing the water | moisture content of the coating liquid surface immediately using the dried roller, and making it dry.
The decoration material 19 as a whole has a low coloration, and a variety of designs having a sense of depth and depth cannot be obtained.

Claims (1)

A decorative material including a binder and aggregate,
The aggregate includes colored inorganic particles including a plurality of closed cells having a diameter of 100 μm or less, a particle inner layer portion having a porosity of 1% to 50%, and a particle outer layer portion having transparency, and the colored inorganic particles A decorative material characterized in that it is fixed with a binding material so that at least a part of the material can be visually recognized.