WO2012108414A1 - 被覆材、被覆材層、及び、積層構造体 - Google Patents
被覆材、被覆材層、及び、積層構造体 Download PDFInfo
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- WO2012108414A1 WO2012108414A1 PCT/JP2012/052702 JP2012052702W WO2012108414A1 WO 2012108414 A1 WO2012108414 A1 WO 2012108414A1 JP 2012052702 W JP2012052702 W JP 2012052702W WO 2012108414 A1 WO2012108414 A1 WO 2012108414A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/29—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
Definitions
- the present invention relates to a novel coating material, coating material layer, and laminated (coating) structure.
- the present invention can be applied mainly to buildings, civil engineering structures, and the like.
- natural stone is often used as a surface decorative material on the walls of buildings and civil engineering structures. With such a material, it is possible to express the deep aesthetics unique to natural products.
- natural stones have disadvantages such as high cost, difficulty in processing, and high weight. In particular, the point that it is difficult to process and is heavy may adversely affect workability and safety when applied to a wall surface or the like.
- Patent Document 1 JP-A-11-130980
- Patent Document 2 JP-A-11-130980
- Patent Document 2 describes a coating material in which a colored aggregate having a uniform particle size within a range of 10 to 1000 ⁇ m is mixed and dispersed in a colorless and transparent binder.
- Patent Document 2 describes a coating material in which a colored aggregate having a uniform particle size within a range of 10 to 1000 ⁇ m is mixed and dispersed in a colorless and transparent binder.
- the specific gravity of the material is relatively large.
- a relatively large amount of coating is required, there is a limit in terms of weight reduction.
- JP-A-5-237444 Patent Document 3
- JP-A-2005-238138 Patent Document 4
- Such a method is advantageous in terms of weight reduction as compared with the methods of Patent Documents 1 and 2 above.
- Patent Documents 3 and 4 require a plurality of paints, the painting work becomes complicated and it is difficult to reproduce a predetermined pattern. Furthermore, the pattern formed is likely to give an artificial impression, and it is difficult to obtain a deep feeling peculiar to natural stone. Moreover, the pattern surface obtained by this method may cause a temperature rise due to sunlight or the like.
- the present invention has been made in view of the above-described problems, and can exhibit a transparent feeling, a deep feeling, etc., and is a coating material that is advantageous in terms of lightness and simplicity, and a beautiful appearance such as a transparent feeling, a deep feeling. It is an object of the present invention to provide a laminated (coating) structure that is excellent in properties and is advantageous in terms of lightness and temperature rise suppression.
- the present inventors have intensively studied and conceived the following coating materials, coating material layers, and laminated (coating) structures, and completed the present invention.
- the coating material of the present invention is a coating material containing two or more kinds of colored particles having different colors, and at least one of the colored particles is an aqueous resin, and a chromatic powder particle and / or a black powder particle.
- a transparent colored granule comprising a body, wherein the transparent colored granule is obtained by granulating a transparent colorant, and the transparent colorant forms a transparent colored film having a concealment rate of 80% or less. It is characterized by that.
- covering material can form the film which has aesthetics, such as a transparent feeling and a deep feeling. Further, the coating material is relatively lightweight, and such a beautiful coating can be formed from a single material. Use of the covering material is useful because it can exhibit natural stone-like aesthetics similar to various natural stones.
- At least one of the colored particles is an achromatic powder particle (excluding black powder particles) having an average particle diameter of 0.4 ⁇ m or more and a refractive index of 1.4 to 2.0. It is preferable that it is a transparent coloring granular material containing). According to the coating material, it is possible to further enhance the transparency, depth, etc. of the formed coating, and further, physical properties such as drying, adhesion, water resistance, temperature rise inhibition, non-adhesiveness, fire resistance, and strength. It is also effective for improvement.
- the coating material of the present invention is preferably such that the two or more kinds of different colored particles are dispersed in an aqueous medium.
- the coating material is effective in that it can be applied safely and efficiently.
- the covering material layer of the present invention is preferably formed of the covering material.
- the said covering material layer has aesthetics, such as a transparent feeling and a deep feeling. In addition, it is relatively lightweight and effective in expressing natural stone-like aesthetics similar to various natural stones.
- the laminated (coating) structure of the present invention preferably has the coating material layer on the colored primer layer.
- the laminated structure is effective in that it can improve aesthetics such as transparency and depth.
- the colored primer layer preferably has infrared reflectivity.
- the said laminated structure is effective at the point which can suppress the temperature rise by sunlight etc.
- the colored undercoat material layer and at least one or more transparent colored granular materials contained in the coating material layer have the same color.
- the laminated structure is effective in that it has improved aesthetics such as a sense of transparency and a sense of depth, and can also express the aesthetics of a large pattern.
- the coating material layer has a dry film thickness of 50 to 2000 ⁇ m at the convex portions thereof.
- the laminated structure is effective in that a sufficient design effect can be obtained in the sense of transparency, depth, etc. even if the coating material layer is a relatively thick film.
- the present invention has the following characteristics.
- the material includes an aqueous resin and chromatic color particles and / or black particles, and forms a film having a concealment rate of 80% or less.
- the transparent coloring material further comprising an achromatic powder particle (excluding black powder particles) having an average particle diameter of 0.4 ⁇ m or more and a refractive index of 1.4 to 2.0.
- the covering material as described in 4. 3.
- the transparent colorant and / or the aqueous medium further contains a hydrophobic solvent.
- the hydrophobic solvent includes those having a water solubility of 5 g / 100 g or less as the hydrophobic solvent.
- a coated (laminated) structure having a coating material layer on a substrate having a colored primer layer, the coating material layer including two or more different colored particles, and at least the colored particles 1 or more types are the covering (lamination
- the transparent coloring material further comprising achromatic powder particles (excluding black powder particles) having an average particle diameter of 0.4 ⁇ m or more and a refractive index of 1.4 to 2.0.
- a coated (laminated) structure having a coating material layer on a substrate having a colored primer layer, the coating material layer including two or more different colored particles, and at least the colored particles 1 or more types are water-based resin, a chromatic color granular material, and / or a black granular material
- stacking) structure characterized by being the transparent colored granular material of the same color as the said colored undercoat material layer.
- the transparent colored granular material is obtained by granulating a transparent coloring material, and the transparent coloring material contains a water-based resin, chromatic powder particles and / or black powder particles, and has a concealment rate of 80% or less. It forms a colored film.
- a coated (laminated) structure having a coating material layer on a substrate having a colored primer layer, the coating material layer including two or more different colored particles, and at least the colored particles
- One or more are aqueous resin, chromatic powder and / or black powder, and achromatic powder (black powder) having an average particle diameter of 0.4 ⁇ m or more and a refractive index of 1.4 to 2.0.
- a transparent colored granular material having the same color as the colored undercoat material layer. 4).
- the transparent colored granular material is obtained by granulating a transparent coloring material, and the transparent coloring material includes an aqueous resin, a chromatic powder particle and / or a black powder particle, and an average particle diameter of 0.4 ⁇ m or more.
- a transparent colored film having a concealment rate of 80% or less is formed, including achromatic powder particles (excluding black powder particles) having a refractive index of 1.4 to 2.0.
- the coated (laminated) structure as described. 5.
- the covering material layer has a dry film thickness of 50 to 2000 ⁇ m on its convex portions. ⁇ 4.
- the laminated structure is characterized in that at least one of the colored granules is a transparent colored granule containing an aqueous resin, a chromatic powder granule and / or a black powder granule.
- the transparent colored granular material is obtained by granulating a transparent coloring material, and the transparent coloring material contains a water-based resin, chromatic powder particles and / or black powder particles, and has a concealment rate of 80% or less. It forms a colored film.
- the colored particles are an aqueous resin, chromatic powder particles and / or black powder particles, and an achromatic powder having an average particle diameter of 0.4 ⁇ m or more and a refractive index of 1.4 to 2.0.
- the transparent colored granular material is obtained by granulating a transparent coloring material, and the transparent coloring material includes an aqueous resin, a chromatic powder particle and / or a black powder particle, and an average particle diameter of 0.4 ⁇ m or more. 2.
- a transparent colored film having a concealment rate of 80% or less is formed, including achromatic powder particles (excluding black powder particles) having a refractive index of 1.4 to 2.0.
- the covering material layer has a dry film thickness of 50 to 2000 ⁇ m on its convex portions. ⁇ 4.
- the laminated structure according to any one of the above.
- the coating material of the present invention is capable of forming a film having aesthetics (designability) such as transparency and depth. Furthermore, the coating material of the present invention is relatively lightweight, and such a beautiful coating can be formed from a single material. If the coating material of this invention is used, it is also possible to express the natural stone-like aesthetics similar to various natural stones.
- the laminated (coating) structure of the present invention has aesthetics (design properties) such as a sense of transparency and depth, and can also exhibit the aesthetics of a large pattern.
- the laminated (covered) structure of the present invention is relatively lightweight and can exhibit natural stone-like aesthetics similar to various natural stones. Furthermore, the structure of the present invention is based on sunlight or the like. The effect of suppressing the temperature rise can also be exhibited.
- the coating material of the present invention is a coating material in which two or more different colored particles are dispersed in an aqueous medium.
- This colored granular material contains at least one or more kinds of transparent colored material granulated material (transparent colored granular material).
- the transparent colorant includes an aqueous resin (a), and chromatic color granules and / or black powder (b).
- the transparent coloring material forms a transparent colored film having a concealment rate of 80% or less (preferably 5 to 70%, more preferably 10 to 60%, and further preferably 15 to 50%). Such characteristics contribute to imparting a sense of transparency, a feeling of depth, and the like. When the concealment rate of the transparent coloring material is too large, it becomes difficult to obtain sufficient transparency, depth, and the like.
- the concealment rate is obtained by applying the sample to the concealment rate test paper with a film applicator (gap 300 ⁇ m) and drying it for 48 hours in an environment of temperature 23 ° C. and humidity 50% (hereinafter referred to as “standard state”). This is a value calculated by the following equation after measuring the luminous reflectance of the test piece.
- Concealment rate (%) (luminous reflectance of coating film on black ground) / (luminous reflectance of coating film on white ground) ⁇ 100
- the aqueous resin (hereinafter also referred to as “component (a)”) in the transparent coloring material has a function as a color developing agent, and is preferably one capable of forming a transparent film.
- the type of resin in the component (a) include acrylic resin, urethane resin, vinyl acetate resin, silicon resin, fluororesin, acrylic vinyl acetate resin, acrylic urethane resin, acrylic silicon resin, and the like. Or 2 or more types can be used.
- the ratio of the component (a) in the transparent coloring material is preferably 5 to 50% by weight, more preferably 10 to 40% by weight in terms of solid content.
- the component (b) in the transparent coloring material is a chromatic powder particle and / or a black powder particle (hereinafter also referred to as “component (b)”).
- the chromatic powder particles are powder particles exhibiting chromatic colors such as yellow, orange, red, green, blue, and purple.
- chromatic powder particles examples include inorganic substances such as ferric oxide, yellow iron oxide, iron oxide, ultramarine, cobalt blue, and cobalt green, azo, naphthol, pyrazolone, anthraquinone, Examples include perylene-based, quinacridone-based, disazo-based, isoindolinone-based, benzimidazole-based, phthalocyanine-based, and quinophthalone-based organic materials.
- black powder particles are black particles, such as iron black, iron-manganese composite oxide, iron-copper-manganese composite oxide, iron-chromium-cobalt composite oxide, copper-chromium. Examples thereof include inorganic oxides such as composite oxides, copper-manganese-chromium composite oxides, and other carbon blacks.
- an inorganic material is preferable, and an inorganic oxide is particularly preferable.
- a transparent coloring material (transparent coloring granular material) can be prepared to a desired color tone by using 1 type, or 2 or more types chosen from such a chromatic color granular material and a black granular material.
- the ratio of the component (b) in the transparent coloring material is preferably 0.001 to 5% by weight, more preferably 0.005 to 3% by weight, and still more preferably 0.01 to 2% by weight. If it is such a ratio, the design effect in this invention will become easy to be acquired.
- the component (b) in the transparent coloring material those having an average particle diameter of 0.4 ⁇ m or more (more preferably 0.4 to 5 ⁇ m, still more preferably 0.5 to 2 ⁇ m) are suitable.
- aesthetics such as transparency and depth can be easily expressed, which is advantageous in terms of suppressing temperature rise.
- the component (b) having the average particle diameter is desirably contained in an amount of 20% by weight or more (more preferably 40% by weight or more, and further preferably 60% by weight or more) in the total amount of the component (b).
- a mode in which the component (b) is composed only of the component (b) having the average particle diameter is also suitable.
- the average particle diameter of (b) component is measured by the laser diffraction type particle size distribution measuring apparatus.
- the transparent coloring material contains an achromatic powder (c) (hereinafter also referred to as “component (c)”) having an average particle size of 0.4 ⁇ m or more and a refractive index of 1.4 to 2.0. It is desirable.
- component (c) component which has such a physical-property value improves a transparent feeling, a deep feeling, etc., and contributes to the design effect of this invention. Such a design effect is considered to be produced by the action of the component (c) scattered on the surface or inside of the transparent colored granular material, such as transmission, reflection, and refraction.
- component (c) is a component that can also contribute to the improvement of physical properties such as drying property, adhesion property, water resistance, temperature rise inhibition property, non-adhesiveness, fire resistance, and strength of the formed film.
- a black powder particle is not contained in (c) component.
- titanium dioxide is used as a white powder, but with colorants mainly composed of titanium dioxide, it is difficult to obtain aesthetics such as transparency and depth.
- a unique design effect different from the conventional one can be obtained by using the component (c) as an essential component.
- the average particle size of the component (c) is usually 0.4 ⁇ m or more, preferably 0.5 ⁇ m or more, more preferably 1 ⁇ m or more.
- the upper limit of the average particle diameter of component becomes like this. Preferably it is 500 micrometers or less, More preferably, it is 200 micrometers or less, More preferably, it is 100 micrometers or less.
- the average particle diameter of (c) component is measured by the laser diffraction type particle size distribution measuring apparatus.
- the refractive index of the component (c) is usually 1.4 to 2.0, preferably 1.45 to 1.7. The refractive index can be measured using an Abbe refractometer.
- the component (c) exhibits a white color in the air, but preferably exhibits transparency in a transparent aqueous resin film.
- the coating concealment rate is preferably 20% or less, more preferably Is 3 to 10%, more preferably 4 to 8%.
- this concealment rate is calculated using the above-mentioned formula for a test piece obtained by applying the above mixture to a concealment rate test paper with a film applicator (gap 300 ⁇ m) and drying in a standard state for 48 hours. Value.
- the component (c) include inorganic substances such as aluminum silicate, magnesium silicate, barium sulfate, silicon dioxide, and calcium carbonate, and organic substances such as resin particles. These are usually uncolored products. These are preferably solid.
- inorganic powder particles are preferable, and silicon dioxide or barium sulfate is particularly preferable.
- the ratio of the component (c) in the transparent coloring material is preferably 0.5 to 50% by weight, more preferably 1 to 25% by weight, and further preferably 2 to 10% by weight. If it is such a ratio, it is suitable at points, such as a design effect and a film physical property improvement effect.
- the transparent colorant preferably contains a water-soluble polymer compound in addition to the above components.
- a water-soluble polymer compound contributes to the formation and stabilization of a transparent colored granular material.
- the water-soluble polymer compound include polyvinyl alcohol, poly (meth) acrylic acid, polyethylene oxide, water-soluble urethane, bio gum, galactomannan derivative, alginic acid or a derivative thereof, cellulose derivative, gelatin, casein, albumin, and the like. Are chemically modified by oxidation, methylation, carboxymethylation, hydroxyethylation, hydroxypropylation, sulfation, phosphorylation, cationization, etc., and one or more of these can be used.
- the water-soluble polymer is a substance different from the water-dispersible resin.
- the ratio of the water-soluble polymer compound in the transparent coloring material is preferably 0.1 to 10 parts by weight, preferably 0.3 to 5 parts by weight in terms of solid content.
- aqueous medium in the transparent colorant, it is desirable to include an aqueous medium as a medium.
- the aqueous medium contains water as a main component and contains a water-soluble solvent as necessary.
- 80% by weight or more (preferably 90% by weight or more) in the aqueous medium is composed of water.
- the transparent coloring material desirably contains a hydrophobic solvent in addition to the above components.
- This hydrophobic solvent has an advantageous effect on improving the dryness and water resistance of the formed film, and is particularly effective in improving these physical properties at the initial stage of film formation.
- the hydrophobic solvent has a water solubility (at 20 ° C.) of preferably 5 g / 100 g or less, preferably 1 g / 100 g or less, more preferably 0.1 g / 100 g or less, and most preferably 0.08 g / 100 g or less. .
- hydrophobic solvent examples include ethylene glycol mono-2-ethylhexyl ether, diethylene glycol mono-2-ethylhexyl ether, diethylene glycol dibutyl ether, 2-ethyl-1-hexanol, 2,2,4-trimethyl-1,3-pentanediol mono Examples include isobutyrate and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate.
- the ratio of the hydrophobic solvent in the transparent coloring material is preferably 0.5 to 15% by weight, more preferably 1 to 10% by weight.
- the transparent coloring material is various additives such as a viscosity adjusting agent, a wetting agent, a dispersing agent, a plasticizer, a film forming aid, an antifreezing agent, a pH adjusting agent, a preservative, It may contain a glaze, an anti-algae agent, an antibacterial agent, an antifoaming agent, a light stabilizer, a fragrance, an ultraviolet absorber, a catalyst, a crosslinking agent, a flame retardant and the like.
- a viscosity adjusting agent such as a viscosity adjusting agent, a wetting agent, a dispersing agent, a plasticizer, a film forming aid, an antifreezing agent, a pH adjusting agent, a preservative
- It may contain a glaze, an anti-algae agent, an antibacterial agent, an antifoaming agent, a light stabilizer, a fragrance, an ultraviolet absorber, a catalyst, a crosslinking agent, a flame
- the ratio of titanium oxide which is a general white powder, is desirably small, and is preferably 3% by weight or less, more preferably 2% by weight or less, further preferably 1% by weight or less, most preferably in the transparent coloring material. Preferably it is 0.5 weight% or less.
- the transparent coloring material can be produced by uniformly mixing the above components by a conventional method.
- the aqueous medium in the coating material of the present invention is a medium for colored granular materials.
- this aqueous medium the same materials as those described for the transparent colorant can be used.
- the aqueous medium contains a water-soluble solvent, the ratio of the water-soluble solvent is preferably 20% by weight or less, more preferably 10% by weight or less in the total amount of water and the water-soluble solvent.
- Such an aqueous medium desirably contains a gelling agent.
- This gelling agent is a component that contributes to the stabilization of the formation of colored particulates by the action of the water-soluble polymer compound.
- a substance that can gel the water-soluble polymer compound can be used.
- Specific examples of gelling agents include magnesium, calcium, barium, aluminum, sodium, potassium, zinc, iron, zirconium, chromium, tin, silver, copper, and other metal sulfates, acetates, and organic acid salts. , Silicate, borate, nitrate, chloride, hydroxide and the like.
- inorganic salts such as hydrochloric acid, sulfuric acid, nitric acid and boric acid or salts thereof, organic acids such as citric acid, lactic acid and tannic acid or salts thereof, and the like can be mentioned.
- the gelling agent one or more of these can be used.
- the ratio of the gelling agent in the aqueous medium is preferably 0.01 to 1.5% by weight, more preferably 0.03 to 1.0% by weight, still more preferably 0.05 to 0.5% by weight. .
- the aqueous medium in the coating material of the present invention may contain an aqueous resin.
- This water-based resin enhances the fixing and protecting action of colored particles in the formed film, and contributes to improvement of physical properties such as water resistance and weather resistance.
- an aqueous resin the same thing as the said transparent coloring material can be used, and a water dispersible resin (resin emulsion) is suitable.
- the aqueous medium in the present invention more preferably contains a water-dispersible resin and a hydrophobic solvent. This hydrophobic solvent has an advantageous effect on improving the dryness and water resistance of the formed film, and is particularly effective in improving these physical properties at the initial stage of film formation.
- the hydrophobic solvent those described for the transparent coloring material can be used.
- the solubility of the hydrophobic solvent in water is preferably 5 g / 100 g or less, preferably 1 g / 100 g or less, more preferably 0.1 g / 100 g or less, and most preferably 0.08 g / 100 g or less.
- the ratio of the aqueous resin in the aqueous medium is preferably 5 to 50% by weight, more preferably 10 to 40% by weight in terms of solid content.
- the mixing ratio of the hydrophobic solvent in the aqueous medium is preferably 0.5 to 30% by weight, more preferably 1 to 25% by weight.
- the aqueous medium may contain various additives (similar to the transparent colorant) as long as the effects of the present invention are not significantly impaired.
- the aqueous medium may contain the component (c).
- the aqueous medium can be produced by uniformly mixing the components as described above by a conventional method.
- the coating material of the present invention contains at least one or more transparent colored particles as colored particles.
- a transparent colored granular material can be produced by dispersing the transparent coloring material in the aqueous medium in a granular form.
- the particle diameter of the transparent colored granular material is preferably 0.1 to 15 mm, more preferably 0.5 to 12 mm, and still more preferably 1 to 10 mm.
- the particle diameter and shape of the transparent colored granular material can be set by appropriately selecting and adjusting the type of stirring blade, the rotation speed of the stirring blade, the viscosity and addition method of the transparent coloring material, the viscosity and composition of the aqueous medium, and the like.
- Colored granules other than the transparent colored granules can be produced by dispersing a colorant containing the component (a), the component (b) and the like in an aqueous medium.
- This coloring material has a coating concealment rate of more than 80%.
- the colorant can be obtained by the same formulation as the transparent colorant.
- the same method as the said transparent coloring material is employable also about granulation of a coloring material.
- the covering material of the present invention contains at least one transparent colored granular material, but it is desirable to include two or more (preferably three or more) transparent colored granular materials having different color tones. That is, it is desirable to mix two or more (preferably three or more) different colored transparent colored particles.
- the ratio of the transparent colored granular material in the colored granular material is preferably 20 to 100% by weight, more preferably 50 to 95% by weight.
- a method of mixing after each of the dispersions in which monochromatic colored granular materials (transparent colored granular materials) are dispersed, or A method such as a method of adding and dispersing two or more colorants (transparent colorants) having different color tones in an aqueous medium at the same time or sequentially may be employed.
- the ratio of the colored particles in the aqueous medium is preferably 30 to 90% by weight, more preferably 40 to 80% by weight.
- the covering material of the present invention can be applied to surface coverings such as buildings and civil engineering structures. Specifically, for example, it can be used as a surface covering material for various substrates such as concrete, mortar, siding board, extruded board, gypsum board, pearlite board, plywood, brick, plastic board, metal plate, glass, porcelain tile, etc. .
- the surface of these base materials may have been subjected to some surface treatment (for example, a sealer, a surfacer, a filler, a putty, etc.), and has already been provided with a film, or has been applied with wallpaper. Also good.
- the coating on the surface of the substrate can be formed by painting a colored primer before painting the coating material of the present invention. Such a colored primer may be uniformly applied to the entire surface of the substrate.
- the substrate surface may be flat or may have irregularities.
- the colored undercoating material a resin in which each color powder particle is mixed can be used.
- the resin an aqueous resin similar to the transparent colorant is preferable.
- each colored powder the above-mentioned chromatic powder, black powder, achromatic powder, and the like can be used.
- the color tone of the colored primer can be prepared by appropriately setting the type and ratio of these particles.
- the concealment rate of the colored primer is preferably 80% or more, more preferably 85% or more, and further preferably 90% or more.
- Various coating tools such as sprays, rollers, brushes and the like can be used when applying the colored primer.
- the coating amount is preferably 0.05 to 0.8 kg / m 2 , more preferably 0.1 to 0.5 kg / m 2 .
- a coating can be formed by coating the above-mentioned coating material on such a substrate.
- various painting tools such as sprays, rollers, and brushes can be used.
- the coating amount of the coating material of the present invention is preferably 0.1 to 1 kg / m 2 , more preferably 0.2 to 0.8 kg / m 2 .
- drying after coating may be normally performed at normal temperature, it is also possible to heat.
- the coating film of the coating material of the present invention has some unevenness, but the dry film thickness of the convex part is preferably 50 ⁇ m or more, more preferably 100 ⁇ m or more, further preferably 300 ⁇ m or more, and particularly preferably 500 ⁇ m or more. It is.
- the upper limit of the dry film thickness of the protrusion is preferably 2000 ⁇ m or less, more preferably 1800 ⁇ m or less, and even more preferably 1500 ⁇ m or less. Even if the coating material of the present invention is a relatively thick film as described above, a sufficient design effect can be obtained in terms of transparency, depth, and the like.
- the dry film thickness of a convex part refers to the dry film (coating material layer) of a coating
- various coated (laminated) structures using the above-described coating materials can be obtained.
- a coated (laminated) structure having a coating material layer of the coating material of the present invention is obtained on a substrate having a colored primer layer.
- a coated (laminated) structure having a transparent coating material layer is obtained on the coating material layer of the coating material of the present invention.
- FIG. 1 shows an example of the coated (laminated) structure of the present invention.
- FIG. 1 is a cross-sectional view of a coated (laminated) structure.
- the present invention can be applied to surface coverings such as buildings and civil engineering structures.
- the substrate 1 in the present invention include concrete, mortar, siding board, extruded board, gypsum board, perlite board, plywood, brick, plastic plate, metal plate, glass, porcelain tile, and the like.
- the surface of these base materials 1 may have been subjected to some surface treatment (for example, a sealer, a surfacer, a filler, a putty, etc.), and has already been formed with a film or has a wallpaper attached thereto. May be.
- the base material 1 may be flat or may have unevenness.
- a colored primer layer 2 is provided on the surface of the substrate 1.
- the colored primer layer 2 can be formed by coating the substrate 1 with a colored primer. Such a colored primer may be uniformly applied to the entire surface of the substrate.
- the colored undercoat material it is possible to use a resin in which each color powder particle is mixed.
- the resin include acrylic resin, urethane resin, vinyl acetate resin, silicon resin, fluororesin, acrylic vinyl acetate resin, acrylic urethane resin, and acrylic silicon resin, and one or more of these can be used.
- the form of resin is not specifically limited, Water dispersible resin (resin emulsion) is suitable.
- the color tone of the colored primer can be prepared by appropriately setting the type and ratio of these particles.
- the ratio of the powder particles is preferably 5 to 500 parts by weight, more preferably 10 to 400 parts by weight with respect to 100 parts by weight of the resin solid content.
- the concealment rate of the colored primer is preferably 80% or more, more preferably 85% or more, and further preferably 90% or more.
- Various coating tools such as sprays, rollers, brushes and the like can be used when applying the colored primer.
- the coating amount is preferably 0.05 to 0.8 kg / m 2 , more preferably 0.1 to 0.5 kg / m 2 .
- the coated (laminated) structure of the present invention has a coating material layer 3 on a colored primer layer 2.
- This covering material layer 3 is composed of two or more kinds of colored particles having different colors, and includes transparent colored particles having the same color as the colored primer layer as the colored particles.
- the covering material layer 3 may be a discontinuous film.
- the particle diameter of the transparent colored granular material is preferably 0.1 to 15 mm, more preferably 0.5 to 12 mm, and still more preferably 1 to 10 mm.
- the “same color” in the present invention means that it can be visually recognized as substantially the same color. Specifically, the color difference between them is usually 5 or less (preferably 4 or less, more preferably 3 or less).
- This color difference ( ⁇ E) is obtained by measuring color data (L * , a * , b * ) of an object (a surface portion of a colored primer layer and a portion where a transparent colored granular material exists on the colored primer layer). By doing so, it can be calculated.
- the color difference can be measured using a color difference meter.
- “different color” means that it can be recognized as a visually different color, and the color difference is usually more than 5 (preferably 6 or more, more preferably 8 or more).
- the transparent colored granular material when included in the covering material layer 3, a feeling of transparency, a feeling of depth, and the like are imparted, and a larger pattern is obtained. Such an effect is considered to be exhibited by a visual action in which the colored granular material has transparency and has the same color as the colored primer layer.
- the covering material layer 3 can be formed by the following method (1) or (2).
- the transparent colorant in the above (1) and (2) those containing an aqueous resin (a), chromatic powder particles and / or black powder particles (b) are suitable.
- the transparent coloring material a material that forms a transparent coloring film having a concealment rate of 80% or less (preferably 5 to 70%, more preferably 10 to 60%, still more preferably 15 to 50%) is suitable. Such characteristics contribute to imparting a sense of transparency, a sense of depth, a sense of bulk, and the like. When the transparency of the transparent coloring material is insufficient, it is difficult to obtain such an effect.
- the same transparent colorants as those in the first invention group can be used.
- the colored particles other than the transparent colored particles those obtained by granulating an opaque coloring material as compared with the transparent coloring material can be used.
- a colorant can have component (a), component (b), and the like as constituent components, but the concealment ratio of the coating is preferably more than 80% (more preferably 85% or more, still more preferably). Is 90% or more). In consideration of such conditions, the colorant can be obtained by the same formulation as the transparent colorant.
- the coating material of the above (1) includes at least one or more kinds of transparent colored particles as colored particles.
- a colored granule can be produced by dispersing the colorant (transparent colorant) in an aqueous medium.
- an aqueous medium the thing similar to what was described by the said transparent coloring material can be used, A gelling agent, aqueous resin, another additive etc. may be included as needed.
- the ratio of the colored particles in the aqueous medium is preferably 30 to 90% by weight, more preferably 40 to 80% by weight.
- the particle diameter of the colored granular material is preferably 0.1 to 15 mm, more preferably 0.5 to 12 mm, and still more preferably 1 to 10 mm.
- the coating material layer 3 can be efficiently formed by one coating.
- various painting tools such as sprays, rollers, and brushes can be used.
- the coating amount of the coating material is preferably 0.1 to 1 kg / m 2 , more preferably 0.2 to 0.8 kg / m 2 .
- drying after coating may be normally performed at normal temperature, it is also possible to heat.
- a coating method capable of granulating the coloring material (transparent coloring material) at the time of painting can be employed, and spray coating is particularly suitable. These colorants may be applied simultaneously or sequentially. When simultaneously coating a plurality of types of coloring materials, a multi-head spray coating machine or the like can be used as a painting tool. The amount of the colorant applied is preferably 0.01 to 0.8 kg / m 2 .
- the covering material layer 3 has some unevenness, and the dry film thickness of the protrusion is preferably 50 ⁇ m or more, more preferably 100 ⁇ m or more, still more preferably 300 ⁇ m or more, and particularly preferably 500 ⁇ m or more.
- the upper limit of the dry film thickness of the protrusion is preferably 2000 ⁇ m or less, more preferably 1800 ⁇ m or less, and even more preferably 1500 ⁇ m or less. In the present invention, even if the coating material layer 3 is a relatively thick film, a sufficient design effect can be obtained in terms of transparency, depth, and the like.
- the dry film thickness of the convex part was measured by the method similar to the said 1st invention group.
- the coating material layer 3 includes at least one kind of transparent colored granular material, but desirably includes two or more (preferably three or more) transparent colored granular materials having different color tones. That is, it is desirable to mix two or more (preferably three or more) different colored transparent colored particles.
- the ratio of the transparent colored granular material in the colored granular material is preferably 20 to 100% by weight, more preferably 50 to 95% by weight.
- a transparent layer can be provided on the covering material layer 3 as necessary.
- This transparent layer can be formed by painting a transparent coating material. If a transparent coating material capable of forming a hydrophilic film is used, the stain resistance can be improved.
- FIG. 1 shows an example of an application example of the present invention.
- FIG. 1 is a cross-sectional view in which a laminated structure of the present invention is laminated on a substrate 1.
- Such a laminated structure can be formed by, for example, coating the base material 1 with the constituent material of each layer.
- the base material 1 constitutes the surface of a building, a civil engineering structure or the like. As such a base material 1, the thing similar to the base material 1 in the said 2nd invention group can be used.
- the laminated structure of the present invention has a coating material layer 3 on a colored primer layer 2.
- the colored primer layer 2 can be formed by coating the substrate 1 with a colored primer. Such a colored primer may be uniformly applied to the entire surface of the substrate.
- the colored primer layer 2 contributes to the temperature rise suppression effect.
- a material containing a resin, an infrared reflective powder or the like is used as the colored undercoat material.
- the resin include acrylic resin, urethane resin, vinyl acetate resin, silicon resin, fluororesin, acrylic vinyl acetate resin, acrylic urethane resin, and acrylic silicon resin, and one or more of these can be used.
- the form of resin is not specifically limited, Water dispersible resin (resin emulsion) is suitable.
- the infrared reflective powder examples include aluminum flake, titanium oxide, barium sulfate, zinc oxide, calcium carbonate, silicon oxide, magnesium oxide, zirconium oxide, yttrium oxide, indium oxide, alumina, iron-chromium composite oxide, manganese bismuth. A composite oxide, a manganese yttrium composite oxide, etc. are mentioned, These 1 type (s) or 2 or more types can be used.
- the ratio of the infrared reflecting powder is preferably 5 to 800 parts by weight, more preferably 10 to 600 parts by weight with respect to 100 parts by weight of the resin solid content.
- the colored undercoat material may further contain an infrared transmitting powder.
- an infrared transmitting powder A wide variety of color tones can be expressed by appropriately combining these infrared transmitting powders.
- the infrared transmitting powder include perylene pigment, azo pigment, yellow lead, petal, vermilion, titanium red, cadmium red, quinacridone red, isoindolinone, benzimidazolone, phthalocyanine green, phthalocyanine blue, cobalt blue, Induslen blue, ultramarine blue, bitumen and the like can be mentioned, and one or more of these can be used.
- the ratio of the infrared transmitting powder is preferably 1 to 200 parts by weight, more preferably 2 to 100 parts by weight with respect to 100 parts by weight of the resin solid content.
- the colored primer is various additives as required, for example, viscosity modifiers, wetting agents, dispersants, plasticizers, film-forming aids, antifreezing agents, pH adjusting agents, antiseptics, antifungal agents, and algaeproofing agents. , Antibacterial agents, antifoaming agents, light stabilizers, fragrances, hollow bodies, ultraviolet absorbers, catalysts, crosslinking agents, flame retardants, and the like.
- various painting tools such as sprays, coaters, rollers, and brushes can be used.
- the coating amount is preferably 0.05 to 1 kg / m 2 , more preferably 0.1 to 0.8 kg / m 2 .
- the laminated structure of the present invention has a coating material layer 3 on a colored primer layer 2.
- the covering material layer 3 is composed of two or more different colored particles, and includes transparent colored particles as the colored particles.
- the covering material layer 3 may be a discontinuous film.
- the particle diameter of the transparent colored granular material is preferably 0.1 to 15 mm, more preferably 0.5 to 12 mm, and still more preferably 1 to 10 mm. In this invention, a transparent feeling, a deep feeling, etc. are obtained by the transparent coloring granular material being contained in the coating material layer 3.
- the covering material layer 3 can be formed by the following method (1) or (2).
- the transparent coloring material in the above (1) and (2) those containing an aqueous resin (a), chromatic powder particles and / or black powder particles (b) are suitable.
- a material that forms a transparent coloring film having a concealment rate of 80% or less preferably 5 to 70%, more preferably 10 to 60%, still more preferably 15 to 50%. Such characteristics contribute to imparting a sense of transparency, a feeling of depth, and the like. When the transparency of the transparent coloring material is insufficient, it is difficult to obtain such an effect.
- the transparent colorant the same transparent colorants as those in the first invention group can be used.
- the covering material layer 3 preferably contains a transparent colored granular material having the same color as the colored primer layer 2.
- a transparent colored granular material having the same color as the colored primer layer 2.
- a large pattern feel can be obtained. Such an effect is considered to be exhibited by a visual action in which the colored granular material has transparency and has the same color as the colored primer layer.
- “same color” in the present invention means that it can be visually recognized as substantially the same color. Specifically, it is as described in the second invention group.
- the colored particles other than the transparent colored particles those obtained by granulating an opaque coloring material as compared with the transparent coloring material can be used.
- a colorant can have component (a), component (b), and the like as constituent components, but the concealment ratio of the coating is preferably more than 80% (more preferably 85% or more, still more preferably). Is 90% or more). In consideration of such conditions, the colorant can be obtained by the same formulation as the transparent colorant.
- the coating material of the above (1) includes at least one or more kinds of transparent colored particles as colored particles.
- a colored granule can be produced by dispersing the colorant (transparent colorant) in an aqueous medium.
- an aqueous medium the thing similar to what was described by the said transparent coloring material can be used, A gelling agent, aqueous resin, another additive etc. may be included as needed.
- the ratio of the colored particles in the coating material is preferably 30 to 90% by weight, more preferably 40 to 80% by weight.
- the particle diameter of the colored granular material is preferably 0.1 to 15 mm, more preferably 0.5 to 12 mm, and still more preferably 1 to 10 mm.
- the coating material (1) preferably includes the above (c) as a component other than the colored granular material.
- the colored granular material and the component (c) are dispersed in the aqueous medium, and the covering material layer 3 is a film in which these are mixed.
- the ratio of the component (c) in the coating material (excluding the component (c) in the colored granule) is preferably 2 to 50% by weight, more preferably 5 to 30% by weight.
- design effects such as a sense of transparency and a sense of depth, and further, the drying property, adhesion, water resistance, temperature rise suppression property, non-adhesiveness of the formed film Properties, fire resistance, strength and the like can be further enhanced.
- the coating material layer 3 can be efficiently formed by one coating.
- various painting tools such as spray, coater, roller and brush can be used.
- the coating amount of the coating material is preferably 0.1 to 1 kg / m 2 , more preferably 0.2 to 0.8 kg / m 2 .
- drying after coating may be normally performed at normal temperature, it is also possible to heat. It is also possible to press the surface of the coating material layer 3 with a roller or the like before the coating material is dried.
- a coating method capable of granulating the coloring material (transparent coloring material) at the time of painting can be employed, and spray coating is particularly suitable. These colorants may be applied simultaneously or sequentially. When simultaneously coating a plurality of types of coloring materials, a multi-head spray coating machine or the like can be used as a painting tool. The amount of the colorant applied is preferably 0.01 to 0.8 kg / m 2 .
- the covering material layer 3 has some unevenness, and the dry film thickness of the protrusion is preferably 50 ⁇ m or more, more preferably 100 ⁇ m or more, still more preferably 300 ⁇ m or more, and particularly preferably 500 ⁇ m or more.
- the upper limit of the dry film thickness of the protrusion is preferably 2000 ⁇ m or less, more preferably 1800 ⁇ m or less, and even more preferably 1500 ⁇ m or less. In the present invention, even if the coating material layer 3 is a relatively thick film, a sufficient design effect can be obtained in terms of transparency, depth, and the like.
- the dry film thickness of the convex part was measured by the method similar to the said 1st invention group.
- the coating material layer 3 includes at least one kind of transparent colored granular material, but desirably includes two or more (preferably three or more) transparent colored granular materials having different color tones. That is, it is desirable to mix two or more (preferably three or more) different colored transparent colored particles.
- the ratio of the transparent colored granular material in the colored granular material is preferably 20 to 100% by weight, more preferably 50 to 95% by weight.
- a transparent layer 4 can be provided on the covering material layer 3 as necessary.
- the transparent layer 4 can be formed by painting a transparent coating material. If a transparent coating material capable of forming a hydrophilic film is used, the stain resistance can be improved. Coating with the amount of the transparent coating material is preferably 0.01 ⁇ 0.5kg / m 2, more preferably 0.05 ⁇ 0.3kg / m 2.
- the transparent layer 4 one containing an acrylic component and a silicon component is particularly suitable.
- the weight ratio of the acrylic component to the silicon component is preferably 100: 10 to 100: 90, more preferably 100: 20 to 100: 70 in terms of solid content.
- Such a transparent layer 4 acts effectively for improving the temperature rise suppressing effect.
- the acrylic component can be obtained by polymerizing various (meth) acrylic monomers or copolymerizing various (meth) acrylic monomers and other monomers.
- the silicon component include silica, silicone and the like, and silica is particularly preferable.
- Silica can be produced using, for example, sodium silicate, lithium silicate, potassium silicate, or a silicate compound as a raw material.
- the particle diameter of silica is preferably 1 to 200 nm, more preferably 5 to 100 nm.
- a material containing an acrylic resin emulsion and silica is suitable.
- an acrylic resin emulsion that can react with silica is suitable.
- those having a functional group (preferably a hydrolyzable silyl group) such as a hydroxyl group and a hydrolyzable silyl group are preferable.
- a laminated structure having the colored undercoat material layer 2, the coating material layer 3, and the like can be formed into a sheet shape in advance.
- a known method may be adopted as a method for previously forming the laminated structure of the present invention into a sheet shape.
- the colored undercoating material layer 2, the coating material layer 3, and the transparent layer 4 as necessary may be applied to the support layer 5 by the above-described method.
- the above-mentioned materials can be used.
- FIG. 2 a sheet-like laminated structure in which a colored undercoat material layer 2 and a coating material layer 3 are laminated on a support layer 5 is used.
- the support layer 5 examples include woven fabric, non-woven fabric, ceramic paper, synthetic paper, glass cloth, mesh, gypsum board, plywood, slate plate, and metal plate.
- the support layer 5 may be made of two or more materials.
- FIG. 2 shows an application example in which a sheet-like laminated structure is attached to the base material 1 through the adhesive layer 6.
- the colorant concealment rate was determined by measuring the luminous reflectance of a test piece obtained by applying the colorant to a concealment rate test paper with a film applicator (gap 300 ⁇ m) and drying it for 48 hours in a standard state. Calculated.
- Each granular material is as follows.
- Yellow powder granules 1 Yellow iron oxide (average particle size 0.5 ⁇ m)
- Red powder 1 Red iron oxide (average particle size 0.6 ⁇ m)
- Black powder particle 1 Iron-manganese complex oxide (average particle size 0.6 ⁇ m)
- Black powder particle 2 carbon black (average particle size 0.1 ⁇ m)
- Achromatic powder granules 1 Titanium oxide (refractive index 2.71, average particle diameter 0.3 ⁇ m)
- Achromatic powder particle 2 silicon dioxide (refractive index 1.55, average particle diameter 4 ⁇ m)
- Achromatic powder particle 3 barium sulfate (refractive index 1.64, average particle size 28 ⁇ m)
- Achromatic powder particles 4 Silicon dioxide (refractive index 1.55, average particle size 120 ⁇ m)
- Production Example B (Production of coloring materials B1 to B4) ⁇ Production Example C (Production of coloring materials C1 to C4) ⁇ Production Example D (Production of coloring materials D1 to D4) Charge 100 parts by weight of acrylic resin emulsion 1 in a container, 6 parts by weight of solvent 2 (2,2,4-trimethyl-1,3-pentanediol diisobutyrate, solubility in water 0.04 g / 100 g), gel 80 parts by weight of forming substance 1 and 2 parts by weight of antifoaming agent 1 were mixed, and various powders were further mixed to produce each colorant. Table 2 shows the types and ratios of the powder particles and the concealment ratio of the coloring material.
- solvent 2 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, solubility in water 0.04 g / 100 g
- gel 80 parts by weight of forming substance 1 and 2 parts by weight of antifoaming agent 1 were mixed, and various powders were further mixed to produce each
- Manufacture of aqueous media ⁇ Manufacture of aqueous medium 1
- a container is charged with 75 parts by weight of acrylic resin emulsion 1 (solid content 40 wt%, water 60 wt%), and solvent 1 (propylene glycol monobutyl ether, solubility in water 6.0 g / 100 g). 4 parts by weight, 10 parts by weight of water, 10 parts by weight of gelling agent 1 (5% by weight ammonium borate aqueous solution) and 1 part by weight of antifoaming agent 1 were uniformly mixed to produce an aqueous medium 1.
- aqueous medium 2 75 parts by weight of acrylic resin emulsion 1 is charged in a container, and solvent 2 (2,2,4-trimethyl-1,3-pentanediol diisobutyrate, solubility in water 0.04 g / 100 g) 4 parts by weight, 10 parts by weight of water, 10 parts by weight of the gelling agent 1, and 1 part by weight of the antifoaming agent 1 were uniformly mixed to prepare an aqueous medium 2.
- aqueous medium 3 75 parts by weight of acrylic resin emulsion 1 is charged in a container, 12 parts by weight of solvent 2, 2 parts by weight of water, 10 parts by weight of gelling agent 1, and 1 part by weight of defoamer 1 are uniform. To prepare an aqueous medium 3.
- aqueous medium 4 75 parts by weight of acrylic resin emulsion 1 is charged in a container, 2 parts by weight of solvent 2, 12 parts by weight of water, 10 parts by weight of gelling agent 1, and 1 part by weight of defoaming agent 1 are uniform. To prepare an aqueous medium 4.
- aqueous medium 5 A container is charged with 75 parts by weight of acrylic resin emulsion 1, and solvent 3 (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, solubility in water 0.09 g / 100 g 4 parts by weight), 10 parts by weight of water, 10 parts by weight of the gelling agent 1, and 1 part by weight of the antifoaming agent 1 were uniformly mixed to prepare an aqueous medium 5.
- dispersions A2 to T6 Each dispersion was produced in the same manner as dispersion A1 except that the combination of the aqueous medium and the colorant was as shown in Table 11. As a result, dispersions (dispersions A2 to T6) respectively corresponding to the colorants A2 to T6 were obtained.
- Dispersions A1, A5, and A6 were mixed in equal amounts to obtain a coating material AB. Further, the dispersions T1, T5, and T6 were mixed in equal amounts to obtain a coating material TB.
- Test Example 1-1 Coating materials AA and TA were each spray-coated at a coating amount of 0.6 kg / m 2 on a slate plate (150 ⁇ 70 mm) coated with a gray primer, and dried in a standard state for 24 hours.
- the dry film thickness of the film projection was about 900 ⁇ m.
- the appearance of the test plate obtained by the above method was observed, and the design properties (transparency, depth, etc.) were evaluated. As a result, the coating material AA was remarkably superior in design.
- Test Example 1-2 With respect to the coating materials AB and TB, test plates were prepared in the same manner as in Test Example 1-1, and the design properties of the obtained coating films (the dry film thickness of the coating convex portions) were evaluated. As a result, the design property of the covering material AB was remarkably superior.
- Test Example 1-3 For coating materials AA to SA, test plates were prepared in the same manner as in Test Example 1-1, and the design properties were evaluated. As a result, the design properties were all good, but the coating materials AA to MA were particularly excellent.
- Test Example 1-4 Next, the following tests were performed on the coating materials AA to SA. The test results are shown in Table 12. The covering materials TA, AB, and TB are not evaluated.
- Test Example 1-1 After coating the coating material in the same manner as in Test Example 1-1, the test plate was cured for 14 days in the standard state. Next, an infrared lamp (output 250 W) was irradiated from a distance of 25 cm to the coating surface of the test plate, and the temperature of the test plate surface was measured. The evaluation was “A” when the temperature was less than 60 ° C., “B” when the temperature was 60 ° C. or more and less than 65 ° C., and “C” when the temperature was 65 ° C. or more.
- Test Example 2 A slate plate (150 x 70 mm) coated with a gray colored primer, coated with coating material AA, coated with test plate A, coated with coating material BA, coated with test plate B, coated material RA was a test plate R, a test plate S was coated with a coating material SA, and a test plate T was coated with a coating material TA. Moreover, what coated the coating material AA with respect to the slate board (150 * 70 mm) with which the white coloring undercoat was painted was made into test board A '. In the preparation of the test plate, painting was performed by spraying (application amount 0.6 kg / m 2 ), and drying was performed for 24 hours in a standard state.
- the dry film thickness of the film projection was about 900 ⁇ m.
- the test plates A, B, R, and S had transparent colored granular materials having the same color as the colored primer layer ( ⁇ E ⁇ 3). In the test plate T, the colored granular materials in the coating material were all opaque. In the test plate A ′, the colored granular materials in the coating material were all different in color from the colored primer layer ( ⁇ E> 5). The appearance of the test plate obtained by the above method was observed, and the design properties (transparency, depth, large pattern, etc.) were evaluated. As a result, the test plates A, B, R, and S were good in design, and the test plates A and B were most excellent.
- Test Example 3-1 A slate plate (150 ⁇ 70 mm) coated with an infrared reflective black primer (including acrylic resin and iron-chromium composite oxide) is coated with a test plate AA and a coating material TA. This was used as a test plate TA. Further, a test plate AA ′ was obtained by coating a coating material AA on a slate plate (150 ⁇ 70 mm) coated with an infrared-absorbing black primer (including acrylic resin and carbon black). In the preparation of the test plate, painting was performed by spraying (application amount 0.6 kg / m 2 ), and drying was performed for 24 hours in a standard state. The dry film thickness of the film projection was about 900 ⁇ m.
- the test plates AA and AA ′ had transparent colored granular materials having the same color as the colored primer layer ( ⁇ E ⁇ 3).
- the colored granular materials in the coating material were all opaque.
- the appearance of the test plate obtained by the above method was observed, and the design properties (transparency, depth, large pattern, etc.) were evaluated. As a result, the test plates AA and AA ′ were excellent.
- the coating surface of the test plate was irradiated with an infrared lamp (output 250 W) from a distance of 25 cm, and the temperature of the test plate surface was measured. As a result, the test plate AA showed less than 60 ° C., and the test plate AA ′ showed 65 ° C. or more.
- Test Example 3-2 A slate plate (150 ⁇ 70 mm) coated with an infrared-reflective gray primer (including acrylic resin, titanium oxide, and iron-chromium composite oxide) is coated with a coating material AB, a test plate AB and a coating material TB A test plate TB was prepared by coating The coating conditions for preparing the test plate are the same as in Test Example 3-1.
- the test plate AB had a transparent colored granular material having the same color ( ⁇ E ⁇ 3) as the colored primer layer. In the test plate TB, the colored granular materials in the coating material were all opaque. The appearance of the test plate obtained by the above method was observed to evaluate the design. As a result, the test plate AB was excellent.
- Example 3-3 The coating material AA and the achromatic powder particles 4 were mixed at a weight ratio of 85:15 to obtain a coating material VA. Also, the coating material BA and the achromatic powder particles 4 were mixed at a weight ratio of 85:15 to obtain a coating material WA. The coating material XA was obtained by mixing the coating material QA and the achromatic powder particles 4 at a weight ratio of 85:15.
- coating materials BA to SA, VA, WA and XA were used to obtain test plates (test plates BA to SA, VA, WA and XA), respectively.
- the appearance of the test plate obtained by the above method was observed to evaluate the design. As a result, the design properties were all good, but the coating materials AA to MA, VA, WA, and XA were particularly excellent.
- Test Example 3-4 Next, each test was performed in the same manner as in Test Example 1-4. The test results are shown in Table 13.
- Base material 2 Colored primer layer 3: Coating material layers 31, 32, 33: Transparent colored granular material 5: Support layer 6: Adhesive layer
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Abstract
Description
上記課題を解決するため、本発明者は鋭意検討の結果、水性媒体中に特定の着色粒状物が分散した被覆材に想到し、本発明を完成させるに到った。
1.2種以上の異色の着色粒状物が水性媒体中に分散した被覆材であって、当該着色粒状物の少なくとも1種以上は、透明着色材が粒状化されたものであり、当該透明着色材は、水性樹脂、並びに有彩色粉粒体及び/または黒色粉粒体を含み、隠蔽率80%以下の被膜を形成するものであることを特徴とする被覆材。
2.前記透明着色材が、更に、平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含む上記1.に記載の被覆材。
3.前記水性媒体が、水性樹脂を含む上記1.または2.に記載の被覆材。
4.前記透明着色材及び/または前記水性媒体が、更に疎水性溶剤を含む上記1.~3.のいずれかに記載の被覆材。
5.前記疎水性溶剤として、水への溶解度が5g/100g以下のものを含む上記4.に記載の被覆材。
6.基材に対し、着色下塗材を塗付した後、上記1.~5.に記載の被覆材を塗付する被覆方法。
7.着色下塗材層を有する基材上に、被覆材層を有する被覆(積層)構造体であって、当該被覆材層は、2種以上の異色の着色粒状物を含み、当該着色粒状物の少なくとも1種以上は、水性樹脂、並びに有彩色粉粒体及び/または黒色粉粒体を含む透明着色粒状物である被覆(積層)構造体。
8.前記透明着色材が、更に、平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含む上記7.に記載の被覆(積層)構造体。
また、上記課題を解決するため、本発明者は鋭意検討の結果、着色下塗材層を有する基材上に、特定の被覆材層を設けた被覆(積層)構造体に想到し、本発明を完成させるに到った。
1.着色下塗材層を有する基材上に、被覆材層を有する被覆(積層)構造体であって、当該被覆材層は、2種以上の異色の着色粒状物を含み、当該着色粒状物の少なくとも1種以上は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体を含み、前記着色下塗材層と同色の透明着色粒状物であることを特徴とする被覆(積層)構造体。
2.前記透明着色粒状物は、透明着色材が粒状化されたものであり、当該透明着色材は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体を含み、隠蔽率80%以下の透明着色被膜を形成するものである1.記載の被覆(積層)構造体。
3.着色下塗材層を有する基材上に、被覆材層を有する被覆(積層)構造体であって、当該被覆材層は、2種以上の異色の着色粒状物を含み、当該着色粒状物の少なくとも1種以上は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体、並びに平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含み、前記着色下塗材層と同色の透明着色粒状物であることを特徴とする被覆(積層)構造体。
4.前記透明着色粒状物は、透明着色材が粒状化されたものであり、当該透明着色材は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体、並びに平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含み、隠蔽率80%以下の透明着色被膜を形成するものである3.記載の被覆(積層)構造体。
5.前記被覆材層は、その凸部の乾燥膜厚が50~2000μmである1.~4.のいずれかに記載の被覆(積層)構造体。
更に、上記課題を解決するため、本発明者は鋭意検討の結果、特定着色下塗材層の上に、特定被覆材層を設けた積層(被覆)構造体に想到し、本発明を完成させるに到った。
1.着色下塗材層の上に被覆材層を有する積層構造体であって、当該着色下塗材層は、赤外線反射性を有し、当該被覆材層は、2種以上の異色の着色粒状物を含み、当該着色粒状物の少なくとも1種以上は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体を含む透明着色粒状物であることを特徴とする積層構造体。
2.前記透明着色粒状物は、透明着色材が粒状化されたものであり、当該透明着色材は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体を含み、隠蔽率80%以下の透明着色被膜を形成するものである1.記載の積層構造体。
3.着色下塗材層の上に被覆材層を有する積層構造体であって、前記着色下塗材層は、赤外線反射性を有し、前記被覆材層は、2種以上の異色の着色粒状物を含み、当該着色粒状物の少なくとも1種以上は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体、並びに平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含む透明着色粒状物であることを特徴とする積層構造体。
4.前記透明着色粒状物は、透明着色材が粒状化されたものであり、当該透明着色材は、水性樹脂、有彩色粉粒体及び/または黒色粉粒体、並びに平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含み、隠蔽率80%以下の透明着色被膜を形成するものである3.記載の積層構造体。
5.前記被覆材層は、その凸部の乾燥膜厚が50~2000μmである1.~4.のいずれかに記載の積層構造体。
本発明の被覆材は、2種以上の異色の着色粒状物が水性媒体中に分散したものである。この着色粒状物には、透明着色材の粒状化物(透明着色粒状物)が、少なくとも1種以上含まれる。
透明着色材は、水性樹脂(a)、並びに有彩色粉粒体及び/または黒色粉粒体(b)を含む。そして、この透明着色材は、隠蔽率80%以下(好ましくは5~70%、より好ましくは10~60%、さらに好ましくは15~50%)の透明着色被膜を形成するものである。このような特性は、透明感、深み感等の付与に寄与するものである。透明着色材の隠蔽率が大きすぎる場合は、十分な透明感、深み感等が得られ難くなる。
<式>隠蔽率(%)=(黒地上の塗膜の視感反射率)/(白地上の塗膜の視感反射率)×100
透明着色材中の(a)成分の比率は、固形分換算で、好ましくは5~50重量%、より好ましくは10~40重量%である。
一方、黒色粉粒体は、黒色を呈する粉粒体であり、例えば、鉄黒、鉄‐マンガン複合酸化物、鉄‐銅‐マンガン複合酸化物、鉄‐クロム‐コバルト複合酸化物、銅‐クロム複合酸化物、銅‐マンガン‐クロム複合酸化物等の無機質のもの、その他カーボンブラック等が挙げられる。
(b)成分としては、無機質のものが好適であり、特に無機酸化物が好適である。
透明着色材中の(b)成分の比率は、好ましくは0.001~5重量%、より好ましくは0.005~3重量%、さらに好ましくは0.01~2重量%である。このような比率であれば、本発明における意匠的効果が得られやすくなる。
上記平均粒子径を有する(b)成分は、(b)成分の全量中、20重量%以上(より好ましくは40重量%以上、さらに好ましくは60重量%以上)含まれることが望ましい。(b)成分が、上記平均粒子径を有する(b)成分のみからなる態様も好適である。なお(b)成分の平均粒子径は、レーザー回折式粒度分布測定装置によって測定される。
(c)成分の屈折率は、通常1.4~2.0、好ましくは1.45~1.7である。なお、屈折率はアッベ屈折計を用いて測定できる。
透明着色材中の(c)成分の比率は、好ましくは0.5~50重量%、より好ましくは1~25重量%、さらに好ましくは2~10重量%である。このような比率であれば、意匠的効果、被膜物性向上効果等の点で好適である。
透明着色材中の水溶性高分子化合物の比率は、固形分換算で、好ましくは0.1~10重量部、好ましくは0.3~5重量部である。
疎水性溶剤としては、例えば、エチレングリコールモノ2-エチルヘキシルエーテル、ジエチレングリコールモノ2-エチルヘキシルエーテル、ジエチレングリコールジブチルエーテル、2-エチル-1-ヘキサノール、2,2,4-トリメチル-1,3-ペンタンジオールモノイソブチレート、2,2,4-トリメチル-1,3-ペンタンジオールジイソブチレート等が挙げられる。
透明着色材中の疎水性溶剤の比率は、好ましくは0.5~15重量%、より好ましくは1~10重量%である。
透明着色材は、上記各成分を常法により均一に混合することで製造できる。
本発明の被覆材中の水性媒体は、着色粒状物の媒体となるものである。この水性媒体としては、上記透明着色材で述べたものと同様のものが使用できる。水性媒体中に水溶性溶剤を含む場合、水溶性溶剤の比率は、水と水溶性溶剤の総量中に好ましくは20重量%以下、より好ましくは10重量%以下とすればよい。
ゲル化剤としては、上記水溶性高分子化合物をゲル化できる物質が使用できる。具体的に、ゲル化剤としては、例えば、マグネシウム、カルシウム、バリウム、アルミニウム、ナトリウム、カリウム、亜鉛、鉄、ジルコニウム、クロム、錫、銀、銅等の金属の硫酸塩、酢酸塩、有機酸塩、珪酸塩、硼酸塩、硝酸塩、塩化物、水酸化物等が挙げられる。この他、塩酸、硫酸、硝酸、硼酸等の無機塩またはそれらの塩、クエン酸、乳酸、タンニン酸等の有機酸またはそれらの塩、等が挙げられる。ゲル化剤としては、これらの1種または2種以上が使用できる。
水性媒体中のゲル化剤の比率は、好ましくは0.01~1.5重量%、より好ましくは0.03~1.0重量%、さらに好ましくは0.05~0.5重量%である。
本発明における水性媒体は、水分散性樹脂と疎水性溶剤を含むものがより好適である。この疎水性溶剤は、形成被膜の乾燥性向上、耐水性向上等に有利に作用し、特に造膜初期段階におけるこれら物性の向上に有効である。疎水性溶剤としては、上記透明着色材で述べたものが使用できる。疎水性溶剤の水への溶解度(20℃における)は、好ましくは5g/100g以下、好ましくは1g/100g以下、さらに好ましくは0.1g/100g以下、最も好ましくは0.08g/100g以下である。
水性媒体中における水性樹脂の比率は、固形分換算で、好ましくは5~50重量%、より好ましくは10~40重量%である。
また、水性媒体中の疎水性溶剤の混合割合は、好ましくは0.5~30重量%、より好ましく、1~25重量%である。
水性媒体は、以上に述べたような成分を常法により均一に混合することで製造できる。
本発明の被覆材は、着色粒状物として、少なくとも1種以上の透明着色粒状物を含むものである。このような透明着色粒状物は、上記透明着色材を上記水性媒体中で粒状に分散させることによって、製造できる。透明着色粒状物の粒子径は、好ましくは0.1~15mm、より好ましくは0.5~12mm、さらに好ましくは1~10mmである。透明着色粒状物の粒子径や形状は、攪拌羽根の種類、攪拌羽根の回転速度、透明着色材の粘性や添加方法、水性媒体の粘性や組成等を適宜選択・調整することによって設定できる。
色調が異なる2種以上の着色粒状物を含む被覆材を得るためには、例えば、
単色の着色粒状物(透明着色粒状物)が分散した分散液をそれぞれ製造した後、これらを混合する方法、あるいは、
色調が異なる2種以上の着色材(透明着色材)を、同時または順に水性媒体に添加し分散させる方法、等の方法を採用すればよい。
水性媒体中の着色粒状物の比率は、好ましくは30~90重量%、より好ましくは40~80重量%である。
本発明の被覆材は、建築物、土木構造物等の表面被覆に適用することができる。具体的には、例えば、コンクリート、モルタル、サイディングボード、押出成形板、石膏ボード、パーライト板、合板、煉瓦、プラスチック板、金属板、ガラス、磁器タイル等の各種基材の表面被覆材として使用できる。これら基材の表面は、何らかの表面処理(例えば、シーラー、サーフェーサー、フィラー、パテ等)が施されたものでもよく、既に被膜が形成されたものや、壁紙が貼り付けられたもの等であってもよい。例えば、基材表面の被膜は、本発明の被覆材の塗装前に、着色下塗材を塗装することで形成できる。このような着色下塗材は、基材全面に均一に塗装すればよい。
また基材表面は、平坦であっても、凹凸を有するものであってもよい。
着色下塗材の塗装時には、スプレー、ローラー、刷毛等の各種塗装器具が使用できる。塗付け量は、好ましくは0.05~0.8kg/m2、より好ましくは0.1~0.5kg/m2である。
本発明の被覆材の被膜は、多少の凹凸を有するものとなるが、その凸部の乾燥膜厚は、好ましくは50μm以上、より好ましくは100μm以上、更に好ましくは300μm以上、特に好ましくは500μm以上である。凸部の乾燥膜厚の上限は、好ましくは2000μm以下、より好ましくは1800μm以下、さらに好ましくは1500μm以下である。本発明の被覆材は、このように比較的厚膜であっても、透明感、深み感等において十分な意匠的効果を得ることができる。なお、凸部の乾燥膜厚とは、被覆材の乾燥被膜(被覆材層)を指し、「凸部を含む被覆材層」の膜厚の平均値を算出したものである。具体的には、被覆材層の凸部を有する10箇所を測定対象とし、マイクロメータを用いて、「凸部を含む被覆材層」、更に「基材等」を含む場合には、「基材等」を含む「合計厚み」を測定した後、前記「合計厚み」から、前記「基材等」の厚みを差し引いた値を算出し、その平均値から求めることができる。
本発明の被覆材の塗装後、必要に応じ透明被覆材等を塗装することもできる。透明被覆材として、親水性被膜が形成できるものを使用すれば、耐汚染性を高めることもできる。
以下、本発明を実施するための形態について説明する。図1に、本発明の被覆(積層)構造体の一例を示す。図1は被覆(積層)構造体の断面図である。
本発明における基材1としては、例えば、コンクリート、モルタル、サイディングボード、押出成形板、石膏ボード、パーライト板、合板、煉瓦、プラスチック板、金属板、ガラス、磁器タイル等が挙げられる。これら基材1の表面は、何らかの表面処理(例えば、シーラー、サーフェーサー、フィラー、パテ等)が施されたものでもよく、既に被膜が形成されたものや、壁紙が貼り付けられたもの等であってもよい。また基材1は、平坦であっても、凹凸を有するものであってもよい。
着色下塗材の塗装時には、スプレー、ローラー、刷毛等の各種塗装器具が使用できる。塗付け量は、好ましくは0.05~0.8kg/m2、より好ましくは0.1~0.5kg/m2である。
これに対し「異色」とは、視覚的に異なる色として認識できることを意味し、その色差は、通常5を超える(好ましくは6以上、より好ましくは8以上)ものである。
(1)少なくとも2種以上の異色の着色粒状物(当該着色粒状物の少なくとも1種以上は、透明着色材が粒状化された透明着色粒状物である)が水性媒体中に分散した被覆材を塗付する。
(2)少なくとも2種以上の異色の着色材(当該着色材として、少なくとも1種以上の透明着色材を含む)を粒状に塗付する。
なお、前記透明着色材としては、上記第1発明群における透明着色材と同様のものが使用できる。
水性媒体中の着色粒状物の比率は、好ましくは30~90重量%、より好ましくは40~80重量%である。着色粒状物の粒子径は、好ましくは0.1~15mm、より好ましくは0.5~12mm、さらに好ましくは1~10mmである。
以下、本発明を実施するための形態について説明する。
赤外線反射性粉体の比率は、樹脂固形分100重量部に対し、好ましくは5~800重量部、より好ましくは10~600重量部である。
赤外線透過性粉体の比率は、樹脂固形分100重量部に対し、好ましくは1~200重量部、より好ましくは2~100重量部である。
着色下塗材の塗装時には、スプレー、コーター、ローラー、刷毛等の各種塗装器具が使用できる。塗付け量は、好ましくは0.05~1kg/m2、より好ましくは0.1~0.8kg/m2である。
(1)少なくとも2種以上の異色の着色粒状物(当該着色粒状物の少なくとも1種以上は、透明着色材が粒状化された透明着色粒状物である)が水性媒体中に分散した被覆材を塗付する。
(2)少なくとも2種以上の異色の着色材(当該着色材として、少なくとも1種以上の透明着色材を含む)を粒状に塗付する。
被覆材中の着色粒状物の比率は、好ましくは30~90重量%、より好ましくは40~80重量%である。着色粒状物の粒子径は、好ましくは0.1~15mm、より好ましくは0.5~12mm、さらに好ましくは1~10mmである。
着色粒状物と(c)成分とが混在する被覆材層3では、透明感、深み感等の意匠的効果、さらには形成被膜の乾燥性、密着性、耐水性、温度上昇抑制性、非粘着性、防火性、強度等を一層高めることができる。
シリコン成分としては、シリカ、シリコーン等が挙げられ、中でもシリカが好適である。シリカは、例えば、珪酸ソーダ、珪酸リチウム、珪酸カリウム、シリケート化合物を原料として製造することができる。シリカの粒子径は、好ましくは1~200nm、より好ましくは5~100nmである。
図2では、支持層5の上に、着色下塗材層2、及び被覆材層3が積層されたシート状積層構造体が用いられている。
本発明では、シート状積層構造体を用いることにより、施工現場での作業が軽減される。また、予め被膜化することで、厚み等の管理が容易となり、安定した被膜性能が発揮できる。
シート状積層構造体の厚みは特に限定されないが、好ましくは0.5~8mm程度である。
図2は、接着剤層6を介して、シート状積層構造体を基材1に貼り付けた適用例を示すものである。
○製造例A(着色材A1~A6の製造)
容器内にアクリル樹脂エマルション1(固形分40重量%、水60重量%)を100重量部仕込み、溶剤1(プロピレングリコールモノブチルエーテル、水への溶解度6.0g/100g)を6重量部、ゲル形成物質1(ガラクトマンナン3重量%水溶液)を80重量部、消泡剤1(鉱物油系)を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率(着色材中の重量%)、及び着色材の隠蔽率は表1の通りである。着色材の隠蔽率は、着色材を、隠蔽率試験紙にフィルムアプリケータ(隙間300μm)で塗付し、標準状態で48時間乾燥させて得た試験片について、視感反射率を測定して算出した。
各粉粒体は以下の通りである。
・黄色粉粒体1:黄色酸化鉄(平均粒子径0.5μm)
・赤色粉粒体1:赤色酸化鉄(平均粒子径0.6μm)
・黒色粉粒体1:鉄‐マンガン複合酸化物(平均粒子径0.6μm)
・黒色粉粒体2:カーボンブラック(平均粒子径0.1μm)
・無彩色粉粒体1:酸化チタン(屈折率2.71、平均粒子径0.3μm)
・無彩色粉粒体2:二酸化珪素(屈折率1.55、平均粒子径4μm)
・無彩色粉粒体3:硫酸バリウム(屈折率1.64、平均粒子径28μm)
・無彩色粉粒体4:二酸化珪素(屈折率1.55、平均粒子径120μm)
○製造例C(着色材C1~C4の製造)
○製造例D(着色材D1~D4の製造)
容器内にアクリル樹脂エマルション1を100重量部仕込み、溶剤2(2,2,4-トリメチル-1,3-ペンタンジオールジイソブチレート、水への溶解度0.04g/100g)を6重量部、ゲル形成物質1を80重量部、消泡剤1を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率、及び着色材の隠蔽率は表2の通りである。
○製造例F(着色材F1~F4の製造)
容器内にアクリル樹脂エマルション1を100重量部仕込み、溶剤3(2,2,4-トリメチル-1,3-ペンタンジオールモノイソブチレート、水への溶解度0.09g/100g)を6重量部、ゲル形成物質1を80重量部、消泡剤1を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率、及び着色材の隠蔽率は表2の通りである。
○製造例H(着色材H1~H4の製造)
○製造例I(着色材I1~I4の製造)
容器内にアクリル樹脂エマルション1を100重量部仕込み、溶剤3(2,2,4-トリメチル-1,3-ペンタンジオールモノイソブチレート、水への溶解度0.09g/100g)を6重量部、ゲル形成物質1を80重量部、消泡剤1を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率、及び着色材の隠蔽率は表3の通りである。
容器内にアクリル樹脂エマルション1を100重量部仕込み、溶剤2(2,2,4-トリメチル-1,3-ペンタンジオールジイソブチレート、水への溶解度0.04g/100g)を13重量部、ゲル形成物質1を80重量部、消泡剤1を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率、及び着色材の隠蔽率は表3の通りである。
容器内にアクリル樹脂エマルション1を100重量部仕込み、溶剤2(2,2,4-トリメチル-1,3-ペンタンジオールジイソブチレート、水への溶解度0.04g/100g)を3重量部、ゲル形成物質1を80重量部、消泡剤1を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率、及び着色材の隠蔽率は表3の通りである。
容器内にアクリル樹脂エマルション1を100重量部仕込み、溶剤3(2,2,4-トリメチル-1,3-ペンタンジオールモノイソブチレート、水への溶解度0.09g/100g)を6重量部、ゲル形成物質1を80重量部、消泡剤1を2重量部混合し、さらに各種粉粒体を混合して、各着色材を製造した。粉粒体の種類と比率、及び着色材の隠蔽率は表4の通りである。
粉粒体の種類と比率を表5の通りとした以外は、製造例Lと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表6の通りとした以外は、製造例Lと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表7の通りとした以外は、製造例Lと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表8の通りとした以外は、製造例Lと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表8の通りとした以外は、製造例Bと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表8の通りとした以外は、製造例Aと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表9の通りとした以外は、製造例Aと同様の方法で各着色材を製造した。
粉粒体の種類と比率を表10の通りとした以外は、製造例Aと同様の方法で各着色材を製造した。
○水性媒体1の製造
容器内にアクリル樹脂エマルション1(固形分40重量%、水60重量%)を75重量部仕込み、溶剤1(プロピレングリコールモノブチルエーテル、水への溶解度6.0g/100g)を4重量部、水を10重量部、ゲル化剤1(ホウ酸アンモニウム5重量%水溶液)を10重量部、消泡剤1を1重量部均一に混合して、水性媒体1を製造した。
容器内にアクリル樹脂エマルション1を75重量部仕込み、溶剤2(2,2,4-トリメチル-1,3-ペンタンジオールジイソブチレート、水への溶解度0.04g/100g)を4重量部、水を10重量部、ゲル化剤1を10重量部、消泡剤1を1重量部均一に混合して、水性媒体2を製造した。
容器内にアクリル樹脂エマルション1を75重量部仕込み、溶剤2を12重量部、水を2重量部、ゲル化剤1を10重量部、消泡剤1を1重量部均一に混合して、水性媒体3を製造した。
容器内にアクリル樹脂エマルション1を75重量部仕込み、溶剤2を2重量部、水を12重量部、ゲル化剤1を10重量部、消泡剤1を1重量部均一に混合して、水性媒体4を製造した。
容器内にアクリル樹脂エマルション1を75重量部仕込み、溶剤3(2,2,4-トリメチル-1,3-ペンタンジオールモノイソブチレート、水への溶解度0.09g/100g)を4重量部、水を10重量部、ゲル化剤1を10重量部、消泡剤1を1重量部均一に混合して、水性媒体5を製造した。
○分散液A1の製造
上記水性媒体1に対し、上記着色材A1を1:2で加えて攪拌・分散することにより、粒子径約3~8mmの着色粒状物の分散液A1を製造した。
水性媒体と着色材の組合せを表11に示す通りにした以外は、上記分散液A1と同様の方法で各分散液を製造した。これにより、着色材A2~T6にそれぞれ対応する分散液(分散液A2~T6)を得た。
○被覆材AAの製造
分散液A1、A2、A3、及びA4を等量で混合し、被覆材AAを得た。
表11に示す組合せにて各分散液を等量で混合し、被覆材BA~TAを得た。
分散液A1、A5、及びA6を等量で混合し、被覆材ABを得た。
また、分散液T1、T5、及びT6を等量で混合し、被覆材TBを得た。
○試験例1-1
灰色の下塗材が塗装されたスレート板(150×70mm)に、被覆材AA、TAをそれぞれ塗付け量0.6kg/m2でスプレー塗装し、標準状態で24時間乾燥した。被膜凸部の乾燥膜厚は約900μmであった。
以上の方法で得られた試験板の外観を観察し、意匠性(透明感、深み感等)を評価した。その結果、意匠性は被覆材AAのほうが格段に優れていた。
被覆材AB、TBにつき、試験例1-1と同様の方法で試験板を作製し、得られた被膜(被膜凸部の乾燥膜厚約900μm)の意匠性を評価した。その結果、意匠性は被覆材ABのほうが格段に優れていた。
被覆材AA~SAにつき、試験例1-1と同様の方法で試験板を作製し、意匠性を評価した。その結果、意匠性はいずれも良好であったが、特に被覆材AA~MAが優れていた。
次に、被覆材AA~SAについて、以下の試験を実施した。試験結果を表12に示した。なお、被覆材TA、AB、及びTBについては、評価を行っていない。
上記意匠性評価の後、被覆材を容器に密封し50℃環境下で7日間保存し、再度、同様の方法で試験板を作製した。以上の方法により、保存前後での意匠性の変化を観察した。評価は、意匠性に変化が認められなかったものを「A」、著しい変化が認められたものを「C」とする3段階(A>B>C)で行った。
試験例1-1と同様の方法で被覆材を塗装した後、試験板を5℃環境下で24時間乾燥した。次に、試験板を水に90分間浸漬した後、被膜の外観を観察した。評価は、被膜に異常が認められなかったものを「A」、著しい異常が認められたものを「C」とする3段階(A>B>C)で行った。
試験例1-1と同様の方法で被覆材を塗装した後、試験板を5℃環境下で6時間乾燥した。次に、試験板を水に90分間浸漬した後、被膜の外観を観察した。評価は、被膜に異常が認められなかったものを「A」、著しい異常が認められたものを「C」とする3段階(A>B>C)で行った。なお、上記耐水性1の評価において、B、及びC評価の被覆材AA、QA、RA、及びSAについては、評価を行っていない。
試験例1-1と同様の方法で被覆材を塗装した後、試験板を標準状態で14日間養生した。次に、この試験板の被膜面に対し、赤外線ランプ(出力250W)を25cmの距離から照射し、試験板表面の温度を測定した。評価は、温度が60℃未満であったものを「A」、60℃以上65℃未満であったものを「B」、65℃以上であったものを「C」とした。
○試験例2-1
灰色の着色下塗材が塗装されたスレート板(150×70mm)に対し、被覆材AAを塗装したものを試験板A、被覆材BAを塗装したものを試験板B、被覆材RAを塗装したものを試験板R、被覆材SAを塗装したものを試験板S、被覆材TAを塗装したものを試験板T、とした。また、白色の着色下塗材が塗装されたスレート板(150×70mm)に対し、被覆材AAを塗装したものを試験板A’とした。なお試験板作製において、塗装はスプレー(塗付け量0.6kg/m2)で行い、乾燥は標準状態で24時間とした。被膜凸部の乾燥膜厚は約900μmであった。
試験板A、B、R、及びSは、着色下塗材層と同色(△E≦3)の透明着色粒状物を有するものであった。試験板Tは、被覆材中の着色粒状物が全て不透明なものであった。試験板A’は、被覆材中の着色粒状物が全て着色下塗材層とは異色(△E>5)であった。
以上の方法で得られた試験板の外観を観察し、意匠性(透明感、深み感、大柄感等)を評価した。その結果、意匠性は試験板A、B、R、及びSが良好であり、特に試験板A及びBが最も優れていた。
○試験例3-1
赤外線反射性黒色下塗材(アクリル樹脂、鉄クロム複合酸化物を含む)が塗装されたスレート板(150×70mm)に対し、被覆材AAを塗装したものを試験板AA、被覆材TAを塗装したものを試験板TAとした。また、赤外線吸収性黒色下塗材(アクリル樹脂、カーボンブラックを含む)が塗装されたスレート板(150×70mm)に対し、被覆材AAを塗装したものを試験板AA’とした。なお試験板作製において、塗装はスプレー(塗付け量0.6kg/m2)で行い、乾燥は標準状態で24時間とした。被膜凸部の乾燥膜厚は約900μmであった。
試験板AA及びAA’は、着色下塗材層と同色(△E≦3)の透明着色粒状物を有するものであった。試験板TAは、被覆材中の着色粒状物が全て不透明なものであった。
以上の方法で得られた試験板の外観を観察し、意匠性(透明感、深み感、大柄感等)を評価した。その結果、試験板AA及びAA’が優れていた。
次に、試験板AA及びAA’を標準状態で14日間養生後、試験板の被膜面に対し、赤外線ランプ(出力250W)を25cmの距離から照射し、試験板表面の温度を測定した。その結果、試験板AAは60℃未満、試験板AA’は65℃以上を示した。
赤外線反射性灰色下塗材(アクリル樹脂、酸化チタン、鉄クロム複合酸化物を含む)が塗装されたスレート板(150×70mm)に対し、被覆材ABを塗装したものを試験板AB、被覆材TBを塗装したものを試験板TBとした。試験板作製時の塗装条件は、上記試験例3-1と同様である。
試験板ABは、着色下塗材層と同色(△E≦3)の透明着色粒状物を有するものであった。試験板TBは、被覆材中の着色粒状物が全て不透明なものであった。
以上の方法で得られた試験板の外観を観察し、意匠性を評価した。その結果、試験板ABが優れていた。
被覆材AAと無彩色粉粒体4とを重量比85:15で混合し、被覆材VAを得た。また、被覆材BAと無彩色粉粒体4とを重量比85:15で混合し、被覆材WAを得た。被覆材QAと無彩色粉粒体4とを重量比85:15で混合し、被覆材XAを得た。
以上の方法で得られた試験板の外観を観察し、意匠性を評価した。その結果、意匠性はいずれも良好であったが、特に被覆材AA~MA、VA、WA、XAが優れていた。
次に、試験例1-4と同様の方法で、各試験を実施した。試験結果を表13に示した。
2:着色下塗材層
3:被覆材層
31、32、33:透明着色粒状物
5:支持層
6:接着剤層
Claims (8)
- 2種以上の異色の着色粒状物を含む被覆材であって、
前記着色粒状物の少なくとも1種以上は、水性樹脂、並びに有彩色粉粒体及び/または黒色粉粒体を含む透明着色粒状物であり、
前記透明着色粒状物は、透明着色材が粒状化されたものであり、
前記透明着色材が、隠蔽率80%以下の透明着色被膜を形成するものであることを特徴とする被覆材。 - 更に、前記着色粒状物の少なくとも1種以上が、平均粒子径0.4μm以上、屈折率1.4~2.0の無彩色粉粒体(黒色粉粒体を除く)を含む透明着色粒状物であることを特徴とする請求項1に記載の被覆材。
- 前記2種以上の異色の着色粒状物が、水性媒体中に分散したものであることを特徴とする請求項1又は2に記載の被覆材。
- 請求項1~3のいずれかに記載の被覆材により形成されることを特徴とする被覆材層。
- 着色下塗材層の上に、請求項4に記載の被覆材層を有することを特徴とする積層構造体。
- 前記着色下塗材層は、赤外線反射性を有することを特徴とする請求項5に記載の積層構造体。
- 前記着色下塗材層と、前記被覆材層に含有される透明着色粒状物の少なくとも1種以上とが、同色であることを特徴とする請求項5又は6に記載の積層構造体。
- 前記被覆材層は、その凸部の乾燥膜厚が50~2000μmであることを特徴とする請求項5~7のいずれかに記載の積層構造体。
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CN100365089C (zh) * | 2003-01-31 | 2008-01-30 | Sk化研株式会社 | 多彩花纹涂料组合物以及花纹面的形成方法 |
TW200413488A (en) * | 2003-01-31 | 2004-08-01 | Sk Kaken Co Ltd | Multicolor coating compositions and method of forming patterned surface |
JP2005238138A (ja) * | 2004-02-27 | 2005-09-08 | Daikichi Suematsu | 塗装方法 |
KR101501863B1 (ko) * | 2011-02-07 | 2015-03-11 | 가부시키가이샤 에프 컨설턴트 | 피복재, 피복재층, 및 적층 구조체 |
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JP2000309729A (ja) * | 1999-04-26 | 2000-11-07 | Dainippon Toryo Co Ltd | 多彩模様形成用塗料 |
JP2001207126A (ja) * | 2000-01-28 | 2001-07-31 | Sk Kaken Co Ltd | 多彩模様塗料組成物 |
JP2003300009A (ja) * | 2002-02-07 | 2003-10-21 | Sk Kaken Co Ltd | 模様面の形成方法 |
JP2007029913A (ja) * | 2005-07-29 | 2007-02-08 | Kansai Paint Co Ltd | 塗装方法 |
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JP2015061908A (ja) * | 2011-02-07 | 2015-04-02 | 株式会社エフコンサルタント | 被覆材、被覆材層、及び、積層構造体 |
JP2020203387A (ja) * | 2019-06-14 | 2020-12-24 | トクラス株式会社 | 塗装物 |
Also Published As
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CN103339209A (zh) | 2013-10-02 |
JP2015061908A (ja) | 2015-04-02 |
JP5777231B2 (ja) | 2015-09-09 |
MY161606A (en) | 2017-04-28 |
HK1184806A1 (zh) | 2014-01-30 |
KR101501863B1 (ko) | 2015-03-11 |
SG192281A1 (en) | 2013-09-30 |
KR20130119470A (ko) | 2013-10-31 |
CN103339209B (zh) | 2016-09-07 |
JP5656300B2 (ja) | 2015-01-21 |
JPWO2012108414A1 (ja) | 2014-07-03 |
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