JP5122929B2 - Painted substrate and method for producing the coated substrate - Google Patents

Painted substrate and method for producing the coated substrate Download PDF

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JP5122929B2
JP5122929B2 JP2007316032A JP2007316032A JP5122929B2 JP 5122929 B2 JP5122929 B2 JP 5122929B2 JP 2007316032 A JP2007316032 A JP 2007316032A JP 2007316032 A JP2007316032 A JP 2007316032A JP 5122929 B2 JP5122929 B2 JP 5122929B2
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coating film
glittering material
clear coating
glittering
paint
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JP2009136779A (en
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孝之 榎本
明治 後藤
誠史 岡山
真依子 小野
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KMEW Co Ltd
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Kubota Matsushitadenko Exterior Works Ltd
KMEW Co Ltd
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Description

本発明は、窯業系サイディング材等の基材に塗装が施され、外装材等として用いられる塗装基材及び塗装基材の製造方法に関する。 The present invention relates to a coated base material used as an exterior material or the like by coating a base material such as a ceramic siding material or the like, and a method for manufacturing the coated base material .

窯業系サイディング材等の基材に塗装が施された塗装基材は、建物の外装材等に広く使用されている。近年、建物の外観の意匠性向上の要請により、前記塗装基材に種々の外観を付与することが求められている。   Background Art Painted base materials in which a base material such as a ceramic siding material is painted are widely used for building exterior materials and the like. In recent years, it has been required to give various appearances to the coating base material in response to a request for improving the design of the appearance of a building.

ところで、従来、基材に着色塗料を塗装した後、マイカ等の光輝材を含む塗料を部分的に塗布し、更にこの上にクリア塗装を施すことで、意匠性を発揮させることが図られている(特許文献1等参照)。   By the way, conventionally, after painting a colored paint on a base material, a paint containing a glittering material such as mica is partially applied, and further, a clear paint is applied thereon to exert design characteristics. (Refer to patent document 1 etc.).

しかし、上記のような塗装方法を適用して外装材等に使用される塗装基材を得る場合、光輝材を含む塗料を塗布した塗膜が不均一となったり、充分な厚みに成膜できなかったりするなどして、充分な意匠性が発揮できないものであった。
特開平7−216799号公報
However, when applying a coating method such as that described above to obtain a coated base material used for an exterior material or the like, the coating film to which a paint containing a glittering material is applied may be uneven or have a sufficient thickness. For example, there was no such thing as sufficient designability.
JP 7-216799 A

本発明は上記の点に鑑みて為されたものであり、光輝材を含む塗料を塗布成膜した塗膜を形成することにより、優れた意匠性を発揮することができる塗装基材及び塗装基材の製造方法を提供することを目的とする。 The present invention has been made in view of the above points, and by forming a coating film on which a coating material containing a glittering material is applied and formed, a coating base material and a coating base capable of exhibiting excellent design properties are provided. It aims at providing the manufacturing method of material .

請求項1に係る塗装基材Aは、基材1の表面に着色塗膜2を形成し、前記着色塗膜2の表面における、この表面面積に対して30〜70%の範囲に、光輝材を含有すると共に粘度が30〜60秒(イワタカップ)の範囲のクリア塗料を塗布成膜することで、光輝材を7〜20質量%の範囲で含有する光輝材含有クリア塗膜3を形成し、前記着色塗膜2及び光輝材含有クリア塗膜3が形成された基材1の表面にクリア塗膜4を形成して成ることを特徴とする。 The coated base material A according to claim 1 forms a colored coating film 2 on the surface of the base material 1, and the surface of the colored coating film 2 has a brightness of 30 to 70% with respect to the surface area. A clear coating film 3 containing a bright material and containing a bright material in a range of 7 to 20% by mass is formed by applying and forming a clear paint having a viscosity of 30 to 60 seconds (Iwata Cup). The clear coating film 4 is formed on the surface of the substrate 1 on which the colored coating film 2 and the glittering material-containing clear coating film 3 are formed.

請求項2に係る発明は、請求項1において、上記光輝材含有クリア塗膜3が、着色顔料を0.2〜7質量%の範囲で含有することを特徴とする。   The invention according to claim 2 is characterized in that, in claim 1, the glittering material-containing clear coating film 3 contains a color pigment in a range of 0.2 to 7% by mass.

請求項3に係る発明は、請求項1又は2において、上記光輝材含有クリア塗膜3が、フレキソ印刷により形成されたものであることを特徴とする。   The invention according to claim 3 is characterized in that, in claim 1 or 2, the glittering material-containing clear coating film 3 is formed by flexographic printing.

請求項4に係る発明は、請求項1乃至3のいずれかにおいて、上記基材1が表面に凹凸を有し、上記光輝材含有クリア塗膜3が前記基材1の凸部に設けられていることを特徴とする。
請求項5に係る塗装基材Aの製造方法は、基材1の表面に着色塗膜2を形成し、前記着色塗膜2の表面における、この表面の面積に対して30〜70%の範囲に、光輝材を含有すると共に粘度が30〜60秒(イワタカップ)の範囲のクリア塗料を塗布成膜することで、光輝材を7〜20質量%の範囲で含有する光輝材含有クリア塗膜3を形成し、前記着色塗膜2及び光輝材含有クリア塗膜3が形成された基材1の表面にクリア塗膜4を形成することを特徴とする。
請求項6に係る発明は、請求項5において、前記光輝材含有クリア塗膜3を、フレキソ版として窯変調模様を刻設したものを用いて、フレキソ印刷により形成することを特徴とする。
According to a fourth aspect of the present invention, in any one of the first to third aspects, the base material 1 has irregularities on the surface, and the glittering material-containing clear coating film 3 is provided on the convex portion of the base material 1. It is characterized by being.
The manufacturing method of the coating base material A which concerns on Claim 5 forms the colored coating film 2 in the surface of the base material 1, The range of 30 to 70% with respect to the area of this surface in the surface of the said colored coating film 2 A clear coating film containing a glittering material and containing a glittering material in a range of 7 to 20% by mass by applying a clear coating having a viscosity of 30 to 60 seconds (Iwata Cup) and containing the glittering material. 3 and the clear coating film 4 is formed on the surface of the substrate 1 on which the colored coating film 2 and the glittering material-containing clear coating film 3 are formed.
The invention according to claim 6 is characterized in that, in claim 5, the glittering material-containing clear coating film 3 is formed by flexographic printing using an engraved kiln modulation pattern as a flexographic plate.

請求項1に係る発明によれば、充分な量の光輝材を含有する光輝材含有クリア塗膜3を充分な厚みで均一且つ滑らかに形成することができると共に、光輝材含有クリア塗膜3を分散させて形成することで塗装基材Aの表面に窯変調の外観を付与するなどして意匠性の向上を図ることができ、更に、クリア塗膜4によって塗装基材Aの表面を保護すると共に光輝材含有クリア塗膜3からの光輝材の脱落を防止して、長期に亘り塗装基材Aの高い意匠性を維持することができる。   According to the first aspect of the invention, the glittering material-containing clear coating film 3 containing a sufficient amount of the glittering material can be uniformly and smoothly formed with a sufficient thickness, and the glittering material-containing clear coating film 3 is formed. By forming it in a dispersed manner, it is possible to improve the design properties by giving the appearance of kiln modulation to the surface of the coated substrate A, and further, the surface of the coated substrate A is protected by the clear coating film 4. At the same time, the glittering material-containing clear coating film 3 can be prevented from falling off, and the high designability of the coating substrate A can be maintained over a long period of time.

請求項2に係る発明によれば、光輝材含有クリア塗膜3に付与された色と、着色塗膜2の色とが重なり合うことで、更に優れた意匠性を発揮することができる。   According to the invention which concerns on Claim 2, when the color provided to the glittering material containing clear coating film 3 and the color of the colored coating film 2 overlap, the further outstanding designability can be exhibited.

請求項3に係る発明によれば、フレキソ印刷は特に水性の塗料の均一な塗布に適していると共に多品種少量生産に適しており、且つフレキソ版と着色塗膜2との間で塗料を押し付けることで光輝材を着色塗膜2と平行に配置しやすくなって光輝材による光輝性を有効に発揮させ、更に優れた意匠性を発揮させることができる。   According to the invention of claim 3, flexographic printing is particularly suitable for uniform application of water-based paints and suitable for multi-product small-volume production, and the paint is pressed between the flexographic plate and the colored coating film 2. Thus, the glittering material can be easily arranged in parallel with the colored coating film 2, and the glittering property of the glittering material can be effectively exhibited, and further excellent design properties can be exhibited.

請求項4に係る発明によれば、外部から目立たない凹部には光輝材含有クリア塗膜3を形成せずに外部から目立つ凸部にのみ光輝材含有クリア塗膜3を形成して、光輝材の使用量を削減しつつ優れた意匠性を発現させることができる。
請求項5に係る発明によれば、充分な量の光輝材を含有する光輝材含有クリア塗膜3を充分な厚みで均一且つ滑らかに形成することができると共に、光輝材含有クリア塗膜3を分散させて形成することで塗装基材Aの表面に窯変調の外観を付与するなどして意匠性の向上を図ることができ、更に、クリア塗膜4によって塗装基材Aの表面を保護すると共に光輝材含有クリア塗膜3からの光輝材の脱落を防止して、長期に亘り塗装基材Aの高い意匠性を維持することができる。
請求項6に係る発明によれば、フレキソ版として窯変調模様を刻設したものを用いることで、光輝材含有クリア塗膜3による窯変調模様を容易に形成することができる。
According to the fourth aspect of the present invention, the glittering material-containing clear coating film 3 is formed only on the convex portions that are conspicuous from the outside without forming the glittering material-containing clear coating film 3 in the concave portions that are not conspicuous from the outside. It is possible to develop excellent design properties while reducing the amount of use.
According to the invention of claim 5, the glittering material-containing clear coating film 3 containing a sufficient amount of the glittering material can be uniformly and smoothly formed with a sufficient thickness, and the glittering material-containing clear coating film 3 is formed. By forming it in a dispersed manner, it is possible to improve the design properties by giving the appearance of kiln modulation to the surface of the coated substrate A, and further, the surface of the coated substrate A is protected by the clear coating film 4. At the same time, the glittering material-containing clear coating film 3 can be prevented from falling off, and the high designability of the coating substrate A can be maintained over a long period of time.
According to the invention which concerns on Claim 6, the kiln modulation pattern by the glitter material containing clear coating film 3 can be easily formed by using what engraved the kiln modulation pattern as a flexographic plate.

以下、本発明の実施をするための最良の形態について説明する。   Hereinafter, the best mode for carrying out the present invention will be described.

基材1としては適宜のものを用いることができるが、例えば主原料としてセメント質原料及び繊維質原料を用いて板状に成形し、養生・硬化させて得られる窯業系サイディング材を用いることができる。   An appropriate material can be used as the base material 1. For example, a ceramic-based siding material obtained by molding into a plate shape using a cementitious material and a fiber material as a main material, and curing and curing can be used. it can.

基材1として窯業系サイディング材を用いる場合、その作製には、セメントと補強繊維を主成分とするセメント系成形材料を成形した湿潤シート(グリーンシート)を用いることができる。この湿潤シートは、セメント系の水性スラリーをセメント系成形材料として用いて、長網式、丸網式の各種の抄造法により抄造したり、押出成形したりするなどして得られるものである。セメント系成形材料としては、例えば水硬性のセメント成分が30〜95質量%、シリカ、珪石粉、フライアッシュ等の充填材が2〜60質量%、パルプ等の補強繊維が3〜10質量%を占める固形分からなるものとし、この固形分100質量部に対し、水20〜2000質量部程度の割合としたスラリーを用いることができる。なお、セメント成分は、普通ポルトランドセメントをはじめ、高炉セメント等の、適宜に組成調整されたものを用いることができる。補強繊維のパルプは、針葉樹パルプ、広葉樹パルプ、あるいはその混合物等を用いることができる。この湿潤シートを養生硬化することにより、基材1を得ることができる。   When a ceramic siding material is used as the substrate 1, a wet sheet (green sheet) formed from a cement-based molding material mainly composed of cement and reinforcing fibers can be used for the production. This wet sheet is obtained by making paper by various types of paper making methods such as a long mesh type and a round net type, using a cement-based aqueous slurry as a cement-based molding material, or by extrusion molding. Examples of the cement-based molding material include hydraulic cement components of 30 to 95% by mass, fillers such as silica, silica powder, and fly ash 2 to 60% by mass, and reinforcing fibers such as pulp 3 to 10% by mass. A slurry having a solid content of about 20 to 2000 parts by mass of water with respect to 100 parts by mass of the solid content can be used. In addition, as a cement component, what adjusted composition suitably, such as normal Portland cement and blast furnace cement, can be used. As the reinforcing fiber pulp, softwood pulp, hardwood pulp, or a mixture thereof can be used. The substrate 1 can be obtained by curing and curing the wet sheet.

上記基材1の養生硬化は適宜の手法で行うことができるが、オートクレーブ養生をすることが望ましく、その際の温度としては140℃以上とすることが好適である。また、実際的には、養生は、オートクレーブ養生と、これに先行しての促進前養生、つまり加温のために水蒸気が投入される前養生との二段階での養生であることが望ましい。これによって、基材1の強度が向上し、組織と性能の均一化が図られることになる。   Curing and curing of the substrate 1 can be performed by an appropriate method, but it is desirable to perform autoclave curing, and the temperature at that time is preferably 140 ° C. or higher. In practice, it is desirable that the curing is a two-stage curing of an autoclave curing and a pre-acceleration curing preceding this, that is, a pre-curing in which steam is added for heating. Thereby, the strength of the base material 1 is improved, and the structure and performance are made uniform.

この養生時には、養生前の湿潤シートの表面にシーラーを塗布することが望ましい。このシーラーを塗布することにより、養生時にエフロレッセンスが発生することを防止することができ、更にシーラーの塗膜が耐透水性を発揮することで、塗装基材Aの耐透水性を向上することができる。   During this curing, it is desirable to apply a sealer to the surface of the wet sheet before curing. By applying this sealer, it is possible to prevent efflorescence from occurring during curing, and the coating film of the sealer exhibits water resistance, thereby improving the water resistance of the coating substrate A. Can do.

シーラーは特に制限されないが、例えばアクリル系、酢酸ビニル系、エポキシ系、塩化ゴム系、ウレタン系、シリコン系、フッ素系等の水性樹脂エマルションを用いることができる。   The sealer is not particularly limited, and for example, an aqueous resin emulsion such as acrylic, vinyl acetate, epoxy, chlorinated rubber, urethane, silicon, or fluorine can be used.

また、このようなシーラー中には、重質炭酸カルシウム、沈降性炭酸カルシウム、カオリン、ベントナイト、セリサイト、ドロマイト、タルク、クレー、酸化アルミニウム、酸化マグネシウム、珪藻土等の無機粒子を混合することができる。   Further, in such a sealer, inorganic particles such as heavy calcium carbonate, precipitated calcium carbonate, kaolin, bentonite, sericite, dolomite, talc, clay, aluminum oxide, magnesium oxide, diatomaceous earth can be mixed. .

そして、このようなシーラーを湿潤シートの表面に塗布し、加熱成膜することでシーラーの塗膜を形成することができる。   And, such a sealer can be applied to the surface of the wet sheet and heated to form a film of the sealer.

このようなシーラーの塗装は、養生前に行うものであるが、上記のように促進前養生を行う場合には促進前養生後にシーラーを塗布し、次いでオートクレーブ養生を行うことが好ましく、これにより建築板Aの耐凍害性や寸法安定性を向上することができる。   Such sealer coating is performed before curing, but when performing pre-acceleration curing as described above, it is preferable to apply the sealer after pre-acceleration curing and then perform autoclave curing. The frost damage resistance and dimensional stability of the plate A can be improved.

このような養生硬化により得られた基材1(無機質基材)には、必要に応じて乾燥処理や切削加工が施される。   The base material 1 (inorganic base material) obtained by such curing is subjected to a drying process or a cutting process as necessary.

この基材1としては、表面が平坦なもののほか、目地模様等を形成することで凹凸に形成されたものを用いることができる。   As this base material 1, what was formed in the unevenness | corrugation by forming a joint pattern etc. besides the thing with a flat surface can be used.

この基材1には着色塗膜2を形成する。着色塗膜2は基材1の養生硬化後に形成することができるが、養生硬化前に形成しても良い。   A colored coating film 2 is formed on the substrate 1. Although the colored coating film 2 can be formed after curing and curing of the substrate 1, it may be formed before curing and curing.

着色塗膜2は、適宜の着色塗料を塗布成膜して形成される。着色塗料としては、例えばアクリル系、アクリルシリコン系、アクリルウレタン系等の適宜の水性のクリア塗料に着色顔料を含有させたエナメル塗料を用いることができる。また着色塗料に含有される着色顔料としては適宜の無機着色顔料や有機着色顔料を用いることができるが、例えば酸化チタン、硫化亜鉛、亜鉛華、鉛白、リトポン、カーボンブラック、油煙、紺青、フタロシアニンブルー、群青、カーミンFB、黄鉛、亜鉛黄、ハンザイエロー、オーカー、ベンガラ、不活性含有アゾ染料等が挙げられる。このような着色塗料を例えば80〜150℃で焼き付け乾燥等することにより成膜し、着色塗膜2を形成することができる。着色塗膜2の厚みや塗膜量は適宜設定されるが、例えば平均膜厚が20〜60μmの範囲であることが好ましい。   The colored coating film 2 is formed by applying and forming an appropriate colored paint. As the colored paint, for example, an enamel paint in which a color pigment is contained in an appropriate water-based clear paint such as acrylic, acrylic silicon, or acrylic urethane can be used. In addition, as the color pigment contained in the color paint, an appropriate inorganic color pigment or organic color pigment can be used. For example, titanium oxide, zinc sulfide, zinc white, lead white, lithopone, carbon black, oil smoke, bitumen, phthalocyanine Blue, ultramarine blue, Carmine FB, yellow lead, zinc yellow, Hansa yellow, ocher, bengara, inert azo dyes and the like can be mentioned. By forming such a colored paint by baking and drying at 80 to 150 ° C., for example, the colored coating film 2 can be formed. Although the thickness and the amount of the coating film 2 are appropriately set, for example, the average film thickness is preferably in the range of 20 to 60 μm.

この着色塗膜2の表面に、光輝材含有クリア塗膜3を形成する。この光輝材含有クリア塗膜3は、光輝材を含有する塗膜である。   A glittering material-containing clear coating film 3 is formed on the surface of the colored coating film 2. This glittering material-containing clear coating film 3 is a coating film containing a glittering material.

光輝材含有クリア塗膜3を形成するための塗料としては、例えばアクリル系、アクリルシリコン系、アクリルウレタン系等の適宜の水性のクリア塗料に光輝材を含有させたものが挙げられる。光輝材としてはマイカ等を挙げることができる。   Examples of the paint for forming the glittering material-containing clear coating film 3 include those obtained by adding a glittering material to an appropriate water-based clear paint such as acrylic, acrylic silicon, and acrylic urethane. Examples of the glitter material include mica.

また、この塗料中における光輝材の配合量は、光輝材含有クリア塗膜3における光輝材の含有量が、7〜20質量%の範囲となるように調整される。このような範囲で光輝材を光輝材含有クリア塗膜3に含有させることで、光輝材含有クリア塗膜3での光輝材からの光の反射による意匠性の付与を実現することができる。このとき光輝材の前記含有量が7質量%に満たないと光輝材による意匠性向上の効果が充分に得られず、また前記含有量が20質量%を超えると過剰な光輝材によって逆に意匠性を損なう事態となる。   Moreover, the compounding quantity of the glittering material in this coating material is adjusted so that content of the glittering material in the glittering material containing clear coating film 3 may become the range of 7-20 mass%. By adding the glittering material to the glittering material-containing clear coating film 3 in such a range, it is possible to achieve designability by reflecting light from the glittering material in the glittering material-containing clear coating film 3. At this time, if the content of the glittering material is less than 7% by mass, the effect of improving the design property by the glittering material cannot be sufficiently obtained. If the content exceeds 20% by mass, the design is reversed by the excessive glittering material. It becomes a situation that impairs sex.

また、この光輝材の平均粒径は5〜60μmの範囲であることが好ましい。この範囲において、光輝材による光の反射により塗装基材Aに特に優れた意匠性を付与することができる。   Moreover, it is preferable that the average particle diameter of this luster material is in the range of 5 to 60 μm. In this range, particularly excellent design can be imparted to the coated substrate A by reflection of light by the glitter material.

更に、この光輝材含有クリア塗膜3を形成するための塗料の粘度は30〜60秒(イワタカップ)の範囲となるようにする。この範囲においてクリア塗料を着色塗膜2上に充分な厚みに均一に塗布成膜することができて、塗装基材Aの意匠性を向上することができる。一方、この塗料の前記粘度が30秒に満たないと塗料の粘度が低すぎて光輝材含有クリア塗膜3を充分な厚みに形成することが困難となり、光輝材含有クリア塗膜3による意匠性の向上を充分に図ることができなくなってしまう。また前記粘度が60秒を超えると高粘度の塗料を均一に塗布することができなくなり、光輝材含有クリア塗膜3が不均一となって、やはり意匠性を損なってしまう。この塗料の粘度調整は、塗料中の水等の溶媒の含有量や、増粘剤の添加量を調整するなどして行うことができる。   Furthermore, the viscosity of the coating material for forming the glittering material-containing clear coating film 3 is set in the range of 30 to 60 seconds (Iwata Cup). In this range, the clear paint can be uniformly applied and formed on the colored coating film 2 with a sufficient thickness, and the design of the coated substrate A can be improved. On the other hand, if the viscosity of the paint is less than 30 seconds, the viscosity of the paint is so low that it is difficult to form the glittering material-containing clear coating film 3 with a sufficient thickness. It will not be possible to improve sufficiently. On the other hand, when the viscosity exceeds 60 seconds, it becomes impossible to uniformly apply a high-viscosity paint, and the glittering material-containing clear coating film 3 becomes non-uniform, which also impairs the design. The viscosity of the paint can be adjusted by adjusting the content of a solvent such as water in the paint and the amount of thickener added.

また、この光輝材含有クリア塗膜3を形成するための塗料中には着色顔料を含有させることが好ましい。着色顔料としては適宜の無機着色顔料や有機着色顔料を用いることができるが、例えば酸化チタン、硫化亜鉛、亜鉛華、鉛白、リトポン、カーボンブラック、油煙、紺青、フタロシアニンブルー、群青、カーミンFB、黄鉛、亜鉛黄、ハンザイエロー、オーカー、ベンガラ、不活性含有アゾ染料等が挙げられる。   Moreover, it is preferable to contain a color pigment in the coating material for forming the glittering material-containing clear coating film 3. As the coloring pigment, an appropriate inorganic coloring pigment or organic coloring pigment can be used. For example, titanium oxide, zinc sulfide, zinc white, lead white, lithopone, carbon black, oil smoke, bitumen, phthalocyanine blue, ultramarine blue, carmine FB, Examples thereof include yellow lead, zinc yellow, Hansa yellow, ocher, bengara, and inert azo dyes.

このように光輝材含有クリア塗膜3に着色顔料を含有させると、光輝材含有クリア塗膜3の色と着色塗膜2の色との重なり合いにより複雑な色彩を有する塗膜を形成することができる。このとき、塗料中の着色顔料の含有量は、光輝材含有クリア塗膜3中に着色顔料が0.2〜7質量%含有されるように調整することが好ましい。この場合、光輝材含有クリア塗膜3を充分に発色させて色の重なり合いによる意匠性の向上を充分に達成することができる。ここで光輝材含有クリア塗膜3中の着色顔料の含有量が0.2質量%に満たないと光輝材含有クリア塗膜3の色が薄くなって着色塗膜2の色が殆どそのまま現出することとなり、光輝材含有クリア塗膜3が発現する色による意匠性の向上を充分に達成することができなくなるおそれがある。また、この着色顔料の含有量が7質量%を超えると光輝材含有クリア塗膜3の色が濃くなり過ぎて着色塗膜2の色を隠蔽してしまい、意匠性を充分に向上できなくなるおそれがある。   When the colorant is contained in the glittering material-containing clear coating film 3 in this way, a coating film having a complex color can be formed by overlapping the color of the glittering material-containing clear coating film 3 and the color of the colored coating film 2. it can. At this time, it is preferable to adjust the content of the color pigment in the coating so that the bright pigment-containing clear coating film 3 contains 0.2 to 7% by mass of the color pigment. In this case, the glittering material-containing clear coating film 3 can be sufficiently colored to sufficiently improve the design properties by overlapping the colors. Here, if the content of the color pigment in the glittering material-containing clear coating film 3 is less than 0.2% by mass, the color of the glittering material-containing clear coating film 3 becomes light and the color of the colored coating film 2 appears almost as it is. Therefore, there is a possibility that the improvement of the design property by the color expressed by the glittering material-containing clear coating film 3 cannot be sufficiently achieved. Further, if the content of the colored pigment exceeds 7% by mass, the color of the glittering material-containing clear coating film 3 becomes too dark and the color of the colored coating film 2 is concealed, and the designability may not be sufficiently improved. There is.

光輝材含有クリア塗膜3を形成するための塗料の塗布は適宜の手法で行うことができるが、フレキソ印刷により塗装することが好ましい。このフレキソ印刷は水性塗料の均一な印刷塗布や、多品種少量生産に適しているものである。また、この場合、基材1上の着色塗膜2とフレキソ版との間でクリア塗料に適度な圧力をかけることができ、このクリア塗料中の鱗片状の光輝材が基材1表面と平行に配置されやすくなって、塗膜の光輝感が向上することとなる。   Application of the paint for forming the glittering material-containing clear coating film 3 can be performed by an appropriate method, but it is preferably applied by flexographic printing. This flexographic printing is suitable for uniform printing and application of water-based paints and for high-mix low-volume production. In this case, an appropriate pressure can be applied to the clear paint between the colored coating film 2 on the base material 1 and the flexographic plate, and the scaly glittering material in the clear paint is parallel to the surface of the base material 1. It becomes easy to arrange | position to this, and the glossiness of a coating film will improve.

このような塗料を塗装後、例えば80〜150℃で焼き付け乾燥等することにより成膜し、光輝材含有クリア塗膜3を形成することができる。光輝材含有クリア塗膜3の厚みや塗膜量は適宜設定されるが、例えば平均膜厚が3〜10μmの範囲であることが好ましい。   After such a paint is applied, the film is formed by baking and drying at 80 to 150 ° C., for example, and the glittering material-containing clear coating film 3 can be formed. The thickness and the coating amount of the glittering material-containing clear coating film 3 are appropriately set. For example, the average film thickness is preferably in the range of 3 to 10 μm.

このように光輝材含有クリア塗膜3を形成するにあたって、この光輝材含有クリア塗膜3は、基材1上の着色塗膜2の表面に分散させて設けるなどして、着色塗膜2の表面の一部に設けることが好ましい。この場合、光輝材含有クリア塗膜3を不規則に分散させて焼き物の焼きムラを表現することができ、焼き物の風合いを有する窯変調の外観を現出させることができる。このとき、光輝材含有クリア塗膜3の総面積が例えば着色塗膜2の表面の面積に対して30〜70%の範囲となるようにすることができる。このときフレキソ印刷にて塗装する場合には、フレキソ版として窯変調模様を刻設したものを用いることで、光輝材含有クリア塗膜3による窯変調模様を容易に形成することができる。   In forming the glittering material-containing clear coating film 3 in this way, the glittering material-containing clear coating film 3 is provided by being dispersed on the surface of the colored coating film 2 on the substrate 1. It is preferable to provide a part of the surface. In this case, the glittering material-containing clear coating film 3 can be irregularly dispersed to express the unevenness of baking, and the appearance of kiln modulation having the texture of the baking can be revealed. At this time, the total area of the glittering material-containing clear coating film 3 can be, for example, in the range of 30 to 70% with respect to the surface area of the colored coating film 2. When painting by flexographic printing at this time, the kiln modulation pattern by the glittering material containing clear coating film 3 can be easily formed by using what engraved the kiln modulation pattern as a flexographic plate.

また、基材1として目地模様等の凹凸模様が形成されたものを用いる場合には、この基材1の凸部の一部に光輝材含有クリア塗膜3を形成するようにし、凹部には光輝材含有クリア塗膜3を形成しないようにすることができる。この場合、目立たない目地部分等の凹部には光輝材を含有する光輝材含有クリア塗膜3を設けないようにして高価な光輝材の使用を削減しつつ、外部から目立つ凸部に光輝材を含有する光輝材含有クリア塗膜3を設けるようにして、効果的に意匠性を向上することができる。   Moreover, when using what formed uneven | corrugated patterns, such as a joint pattern, as the base material 1, it was made to form the glittering material containing clear coating film 3 in a part of convex part of this base material 1, and in a recessed part The bright material-containing clear coating film 3 can be prevented from being formed. In this case, the brilliant-containing clear coating film 3 containing the brilliant material is not provided in the concavities such as inconspicuous joint portions, and the use of an expensive brilliant material is reduced, while the brilliant material is applied to the convex portions that are conspicuous from the outside. The design property can be effectively improved by providing the bright material-containing clear coating film 3 to be contained.

光輝材含有クリア塗膜3を形成した後、着色塗膜2及び光輝材含有クリア塗膜3が形成された基材1の全面にクリア塗膜4を形成する。   After the glittering material-containing clear coating film 3 is formed, the clear coating film 4 is formed on the entire surface of the substrate 1 on which the colored coating film 2 and the glittering material-containing clear coating film 3 are formed.

クリア塗膜4は無色透明のクリア塗料を塗布成膜して形成することができる。このクリア塗料としては、適宜の有機系又は無機系のクリア塗料を用いることができる。   The clear coating film 4 can be formed by coating a colorless and transparent clear paint. As this clear paint, an appropriate organic or inorganic clear paint can be used.

有機系のクリア塗料としては、例えばアクリル系、アクリルシリコン系、アクリルウレタン系等の適宜の水性のクリア塗料を用いることができる。このような水性のクリア塗料を塗装後、例えば80〜150℃で焼き付け乾燥等することにより成膜して、クリア塗膜4を形成することができる。この場合のクリア塗膜4の厚みや塗膜量は特に制限されないが平均膜厚が10〜25μmの範囲であることが好ましい。   As the organic clear paint, for example, an appropriate water-based clear paint such as acrylic, acrylic silicon, and acrylic urethane can be used. After the application of such a water-based clear paint, the clear coating film 4 can be formed by baking and drying at 80 to 150 ° C., for example. In this case, the thickness of the clear coating film 4 and the coating amount are not particularly limited, but the average film thickness is preferably in the range of 10 to 25 μm.

また、無機系のクリア塗料としては、例えばオルガノシランのシリカ分散オリゴマー溶液に、ポリオルガノシロキサンや、アルキルチタン酸塩等の縮合反応触媒を加え、或いは更にシリカを加えたケイ素アルコキシド系塗料等を用いることができる。   In addition, as the inorganic clear paint, for example, a silicon alkoxide paint in which a condensation reaction catalyst such as polyorganosiloxane or alkyl titanate is added to a silica-dispersed oligomer solution of organosilane, or silica is further used. be able to.

具体的には、例えば下記式〔1〕で表される加水分解性オルガノシランを有機溶媒または水に分散されたコロイダルシリカ中で、X1モルに対し水0.001〜0.5モルを使用する条件下で部分加水分解してなる、オルガノシランのシリカ分散オリゴマー溶液(A成分)と、下記式〔2〕で表され、この式〔2〕中のRにフェニル基を全R基に対して1〜30モル%含有するポリオルガノシロキサン(B成分)と、このA成分とB成分との縮合反応を促進する触媒とを必須成分とし、A成分においてシリカを固形分として5〜95重量%含有し、加水分解性オルガノシランの少なくとも50モル%がn=1のオルガノシランで、A成分1〜99重量部に対してB成分99〜1重量部が配合されているものを挙げることができる。 Specifically, for example, in colloidal silica in which a hydrolyzable organosilane represented by the following formula [1] is dispersed in an organic solvent or water, 0.001 to 0.5 mol of water is used with respect to 1 mol of X. A silica-dispersed oligomer solution of organosilane (component A) obtained by partial hydrolysis under the conditions, and represented by the following formula [2], wherein R 2 in this formula [2] is all phenyl groups in R 2 The polyorganosiloxane (component B) contained in an amount of 1 to 30 mol% and a catalyst for promoting the condensation reaction between the component A and the component B are essential components, and silica is contained in the component A in an amount of 5 to 95% by weight. %, And at least 50 mol% of the hydrolyzable organosilane is an organosilane with n = 1, and 99 to 1 part by weight of the B component is blended with 1 to 99 parts by weight of the A component. it can.

SiX4−n…〔1〕
(式中、Rは同一または異種の、アルキル基、シクロアルキル基、アルケニル基、ハロゲン置換炭化水素基、γ−メタクリロキシプロピル基、γ−グリシドキシプロピル基、3,4−エポキシシクロヘキシルエチル基およびγ−メルカプトプロピル基からなる群より選ばれる、炭素数1〜8の1価炭化水素基を示し、nは0〜3の整数、Xはアルコキシ基、アセトキシ基、オキシム基、エノキシ基、アミノ基、アミノキシ基およびアミド基からなる群より選ばれる加水分解性基を示す。)
Si(OH)(4−a−b)/2…〔2〕
(式中、Rは同一または異種の、アルキル基、シクロアルキル基、アルケニル基、ハロゲン置換炭化水素基、γ−メタクリロキシプロピル基、γ−グリシドキシプロピル基、3,4−エポキシシクロヘキシルエチル基およびγ−メルカプトプロピル基からなる群より選ばれる、炭素数1〜8の1価炭化水素基を示し、aおよびbはそれぞれ0.2≦a≦2、0.0001≦b≦3、a+b<4の関係を満たす数である。)
このようなケイ素アルコキシド系塗料等を静電塗装等して塗布した後、例えば60〜120℃で焼き付け乾燥等することにより成膜して、クリア塗膜4を形成することができる。この場合のクリア塗膜4の厚みや塗膜量は特に制限されないが、例えば平均膜厚が3〜8μmの範囲であることが好ましい
このようなクリア塗膜4によって塗装基材Aの表面を保護すると共に、光輝材含有クリア塗膜3からの光輝材の脱落を防止して、塗装基材Aの優れた意匠性を長期に亘って維持することが可能となる。
R 1 n SiX 4-n (1)
Wherein R 1 is the same or different, alkyl group, cycloalkyl group, alkenyl group, halogen-substituted hydrocarbon group, γ-methacryloxypropyl group, γ-glycidoxypropyl group, 3,4-epoxycyclohexylethyl. A monovalent hydrocarbon group having 1 to 8 carbon atoms selected from the group consisting of a group and a γ-mercaptopropyl group, n is an integer of 0 to 3, X is an alkoxy group, an acetoxy group, an oxime group, an enoxy group, It represents a hydrolyzable group selected from the group consisting of an amino group, an aminoxy group and an amide group.)
R 2 a Si (OH) b O (4-a-b) / 2 ... (2)
Wherein R 2 is the same or different, alkyl group, cycloalkyl group, alkenyl group, halogen-substituted hydrocarbon group, γ-methacryloxypropyl group, γ-glycidoxypropyl group, 3,4-epoxycyclohexylethyl. A monovalent hydrocarbon group having 1 to 8 carbon atoms selected from the group consisting of a group and a γ-mercaptopropyl group, wherein a and b are 0.2 ≦ a ≦ 2, 0.0001 ≦ b ≦ 3, a + b, respectively. <A number that satisfies the relationship of 4.
After such a silicon alkoxide-based paint or the like is applied by electrostatic coating or the like, the clear coating film 4 can be formed, for example, by baking and drying at 60 to 120 ° C. In this case, the thickness and the coating amount of the clear coating film 4 are not particularly limited. For example, the average film thickness is preferably in the range of 3 to 8 μm. The clear coating film 4 protects the surface of the coating substrate A. In addition, it is possible to prevent the glitter material from falling off the glitter material-containing clear coating film 3 and maintain the excellent design properties of the coating substrate A over a long period of time.

以下、具体的な実施例を挙げて本発明を更に詳述する。   Hereinafter, the present invention will be described in more detail with reference to specific examples.

(実施例1)
基材1として455mm×3030mmの平面視寸法を有すると共に表面にタイル目地状の凹凸形状が形成された窯業系サイディング材を用いた。
Example 1
The base material 1 was a ceramic siding material having a plan view size of 455 mm × 3030 mm and having a tile joint unevenness formed on the surface.

着色塗料として関西ペイント株式会社製のアクリルエマルション塗料「IM7000」に顔料(酸化チタン、オーカー、ベンガラ、カーボンブラックの混合顔料)をPWC(顔料重量濃度)40%となるように配合したものを用い、これを上記基材1の一面の全面に塗布し、100℃、2分の加熱条件で成膜して膜厚30μmの着色塗膜2を形成した。   As a colored paint, an acrylic emulsion paint “IM7000” manufactured by Kansai Paint Co., Ltd., blended with a pigment (mixed pigment of titanium oxide, ocher, bengara and carbon black) so as to be 40% PWC (pigment weight concentration), This was applied to the entire surface of the substrate 1 and formed under a heating condition of 100 ° C. for 2 minutes to form a colored coating film 2 having a thickness of 30 μm.

光輝材含有クリア塗膜3を形成するための塗料としては、関西ペイント株式会社製のアクリルエマルション塗料「IM7000」に、光輝材である粒径10〜60μmの範囲のパールマイカ(メルク社製)を配合し、水と増粘剤により粘度調整をして樹脂固形分30質量%に調製したものを用いた。この塗料の粘度は30秒(イワタカップ)であった。   As a paint for forming the glittering material-containing clear coating film 3, pearl mica (manufactured by Merck & Co., Inc.) having a particle diameter of 10 to 60 μm as a glittering material is added to the acrylic emulsion paint “IM7000” manufactured by Kansai Paint Co., Ltd. A compound prepared by adjusting the viscosity with water and a thickener to have a resin solid content of 30% by mass was used. The viscosity of this paint was 30 seconds (Iwata Cup).

この塗料をフレキソ印刷により上記着色塗膜2上に塗布し、100℃、1分間の加熱条件で成膜して、光輝材の含有量が7質量%の光輝材含有クリア塗膜3を形成し、基材1の凸部に分散する窯変調の模様を形成した。このとき、フレキソ版としてはシリコンゴム製ロールに窯変調模様が刻設されたものを用い、アニロックスロールとしてはスクリーン線数55線/インチ、凸面積36%、深さ125μmのものを用いた。   This paint is applied onto the colored coating film 2 by flexographic printing, and film formation is performed at 100 ° C. for 1 minute to form a glittering material-containing clear coating film 3 having a glittering material content of 7% by mass. A kiln modulation pattern dispersed on the convex portions of the substrate 1 was formed. At this time, a flexo plate having a silicon rubber roll engraved with a kiln modulation pattern was used, and an anilox roll having a screen line number of 55 lines / inch, a convex area of 36%, and a depth of 125 μm was used.

次に、クリア塗料として関西ペイント株式会社製のアクリルエマルション塗料「IM7000」を用い、これを基材1上の着色塗膜2及び光輝材含有クリア塗膜3が形成された面の全面に塗布し、100℃、2分間の加熱条件で成膜して膜厚15μmのクリア塗膜4を形成した。これにより、塗装基材Aを得た。   Next, an acrylic emulsion paint “IM7000” manufactured by Kansai Paint Co., Ltd. was used as the clear paint, and this was applied to the entire surface of the base 1 on which the colored coating 2 and the glittering material-containing clear coating 3 were formed. A clear coating film 4 having a film thickness of 15 μm was formed by heating at 100 ° C. for 2 minutes. Thereby, the coating base material A was obtained.

(実施例2)
実施例1において、光輝材含有クリア塗膜3を形成するための塗料としては、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカを配合し、水と増粘剤により粘度調整をして樹脂固形分37質量%に調製したものを用いた。この塗料の粘度は60秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が7質量%の光輝材含有塗膜3を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Example 2)
In Example 1, as a coating material for forming the glittering material-containing clear coating film 3, pearl mica having a particle diameter of 10 to 60 μm as a glittering material is blended with an acrylic emulsion resin, and water and a thickener are used. What adjusted the viscosity and prepared resin solid content to 37 mass% was used. The viscosity of this paint was 60 seconds (Iwata Cup). Using this paint, a glittering material-containing coating film 3 having a glittering material content of 7% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(実施例3)
実施例1において、光輝材含有クリア塗膜3を形成するための塗料としては、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカを配合し、水と増粘剤により粘度調整をして樹脂固形分30質量%に調製したものを用いた。この塗料の粘度は30秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が20質量%の光輝材含有塗膜3を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Example 3)
In Example 1, as a coating material for forming the glittering material-containing clear coating film 3, pearl mica having a particle diameter of 10 to 60 μm as a glittering material is blended with an acrylic emulsion resin, and water and a thickener are used. What adjusted the viscosity and prepared resin solid content to 30 mass% was used. The viscosity of this paint was 30 seconds (Iwata Cup). Using this paint, a glittering material-containing coating film 3 having a glittering material content of 20% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(実施例4)
実施例1において、光輝材含有クリア塗膜3を形成するための塗料としては、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカ、及び着色顔料であるカーボンブラックを配合し、水と増粘剤により粘度調整をして樹脂固形分35質量%に調製したものを用いた。この塗料の粘度は45秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が7質量%、着色顔料の含有量が0.2質量%の光輝材含有塗膜3を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
Example 4
In Example 1, as a paint for forming the glittering material-containing clear coating film 3, blending acrylic emulsion resin with pearl mica having a particle diameter of 10 to 60 μm as a glittering material and carbon black as a coloring pigment. Then, the viscosity was adjusted with water and a thickener to prepare a resin solid content of 35% by mass. The viscosity of this paint was 45 seconds (Iwata Cup). Using this paint, a glittering material-containing coating film 3 having a glittering material content of 7% by mass and a color pigment content of 0.2% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(実施例5)
実施例1において、光輝材含有クリア塗膜3を形成するための塗料としては、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカ、及び着色顔料であるカーボンブラックを配合し、水と増粘剤により粘度調整をして樹脂固形分35質量%に調製したものを用いた。この塗料の粘度は45秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が7質量%、着色顔料の含有量が7質量%の光輝材含有塗膜3を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Example 5)
In Example 1, as a paint for forming the glittering material-containing clear coating film 3, blending acrylic emulsion resin with pearl mica having a particle diameter of 10 to 60 μm as a glittering material and carbon black as a coloring pigment. Then, the viscosity was adjusted with water and a thickener to prepare a resin solid content of 35% by mass. The viscosity of this paint was 45 seconds (Iwata Cup). Using this paint, a glittering material-containing coating film 3 having a glittering material content of 7% by mass and a color pigment content of 7% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(実施例6)
実施例1において、光輝材含有クリア塗膜3を形成するための塗料としては、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカ、及び着色顔料であるカーボンブラックを配合し、水と増粘剤により粘度調整をして樹脂固形分35質量%に調製したものを用いた。この塗料の粘度は45秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が7質量%、着色顔料の含有量が8質量%である光輝材含有塗膜3を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Example 6)
In Example 1, as a paint for forming the glittering material-containing clear coating film 3, blending acrylic emulsion resin with pearl mica having a particle diameter of 10 to 60 μm as a glittering material and carbon black as a coloring pigment. Then, the viscosity was adjusted with water and a thickener to prepare a resin solid content of 35% by mass. The viscosity of this paint was 45 seconds (Iwata Cup). Using this paint, a glittering material-containing coating film 3 having a glittering material content of 7% by mass and a color pigment content of 8% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(比較例1)
実施例1における光輝材含有クリア塗膜3を形成するための塗料に代えて、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカを配合し、水と増粘剤により粘度調整をして樹脂固形分28質量%に調製したものを用いた。この塗料の粘度は25秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が7質量%の塗膜を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Comparative Example 1)
Instead of the paint for forming the glittering material-containing clear coating film 3 in Example 1, pearl mica having a particle diameter of 10 to 60 μm, which is a glittering material, is blended in the acrylic emulsion resin with water and a thickener. What adjusted the viscosity and prepared resin solid content to 28 mass% was used. The viscosity of this paint was 25 seconds (Iwata Cup). Using this paint, a coating film having a bright material content of 7% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(比較例2)
実施例1における光輝材含有クリア塗膜3を形成するための塗料に代えて、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカを配合し、水と増粘剤により粘度調整をして樹脂固形分38質量%に調製したものを用いた。この塗料の粘度は65秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が13質量%の塗膜を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Comparative Example 2)
Instead of the paint for forming the glittering material-containing clear coating film 3 in Example 1, pearl mica having a particle diameter of 10 to 60 μm, which is a glittering material, is blended in the acrylic emulsion resin with water and a thickener. What adjusted the viscosity and prepared resin solid content to 38 mass% was used. The viscosity of this paint was 65 seconds (Iwata Cup). Using this paint, a coating film having a glittering material content of 13% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(比較例3)
実施例1における光輝材含有クリア塗膜3を形成するための塗料に代えて、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカを配合し、水と増粘剤により粘度調整をして樹脂固形分30質量%に調製したものを用いた。この塗料の粘度は30秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が5質量%の塗膜を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Comparative Example 3)
Instead of the paint for forming the glittering material-containing clear coating film 3 in Example 1, pearl mica having a particle diameter of 10 to 60 μm, which is a glittering material, is blended in the acrylic emulsion resin with water and a thickener. What adjusted the viscosity and prepared resin solid content to 30 mass% was used. The viscosity of this paint was 30 seconds (Iwata Cup). Using this paint, a coating film having a glittering material content of 5% by mass was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(比較例4)
実施例1において、光輝材含有クリア塗膜3を形成するための塗料としては、アクリルエマルション樹脂に、光輝材である粒径10〜60μmの範囲のパールマイカを配合し、水と増粘剤により粘度調整をして樹脂固形分30質量%に調製したものを用いた。この塗料の粘度は30秒(イワタカップ)であった。この塗料を用い、光輝材の含有量が23質量%である塗膜を形成した。それ以外は実施例1と同様にして、塗装基材Aを得た。
(Comparative Example 4)
In Example 1, as a coating material for forming the glittering material-containing clear coating film 3, pearl mica having a particle diameter of 10 to 60 μm as a glittering material is blended with an acrylic emulsion resin, and water and a thickener are used. What adjusted the viscosity and prepared resin solid content to 30 mass% was used. The viscosity of this paint was 30 seconds (Iwata Cup). Using this paint, a coating film having a bright material content of 23 mass% was formed. Otherwise in the same manner as in Example 1, a coated substrate A was obtained.

(評価試験)
各実施例及び比較例で得られた塗装基材Aについて、塗装面の外観を観察し、均一性、濃さ・隠蔽性、意匠性について評価した。
(Evaluation test)
About the coating base material A obtained by each Example and the comparative example, the external appearance of the coating surface was observed and the uniformity, the density / hiding property, and the design property were evaluated.

ここで均一性は光輝材含有クリア塗膜3における光輝材のムラの有無を目視に基づいて評価するものであり、光輝材が均一の場合を○、部分的に不均一な場合を△、全体的に不均一な場合を×と評価した。   Here, the uniformity is based on visual evaluation of the presence or absence of unevenness of the glittering material in the glittering material-containing clear coating film 3. The case where the glittering material is uniform is evaluated as .largecircle. The case where it was not uniform was evaluated as x.

また、濃さ・隠蔽性は、光輝材含有クリア塗膜3を介した着色塗膜2の透け具合を目視により評価するものであり、光輝材含有クリア塗膜3の色と着色塗膜2の透過色とがバランス良く混ざり合って見える場合を○、いずれかの塗膜の色に偏って見える場合を△、光輝材含有クリア塗膜3によって着色塗膜2が完全に隠蔽され、或いは着色塗膜2の透過色しか見えない場合を×と評価した。   Further, the darkness / hiding property is to visually evaluate the transparency of the colored coating film 2 through the glittering material-containing clear coating film 3. The case where the transmitted color appears to be mixed in a well-balanced manner, the case where the color appears to be biased to any of the colors of the coating film, and the colored coating film 2 is completely concealed or colored by the glittering material-containing clear coating film 3 The case where only the transmitted color of the membrane 2 was visible was evaluated as x.

また、光輝感は、全体的な外観を目視により評価するものであり、下記表1における「良好」は塗膜の光輝感が良好なもの、「やや良好」は光輝感が若干不足しているものの、充分な光輝感があるもの、「乏しい」は塗膜の光輝感が乏しいもの、「不均一」は光輝材にムラがあり光輝感が不均一なもの、「過剰」は光輝性が高すぎて意匠性を損なっているものを、それぞれ示す。   Further, the glitter feeling is to visually evaluate the overall appearance. “Good” in Table 1 below indicates that the coating film has a good glitter feeling, and “Slightly good” indicates that the glitter feeling is slightly insufficient. Although there is sufficient glitter, "poor" means that the coating film is poor, "non-uniform" means that the glitter material has unevenness and unevenness, and "excess" means high glitter. Each of them shows a design property that is too bad.

尚、実施例6で光輝感が若干不足したのは、着色顔料の含有量が多いために光輝材による光輝性が顔料の色によって隠蔽されたためと推察される。また、比較例2では塗料粘度が高いためにレベリング性が低くなり、塗膜にロービングが発生した。   The reason why the glitter feeling was slightly insufficient in Example 6 is presumed that the glittering property of the glittering material was concealed by the color of the pigment because of the large content of the colored pigment. Further, in Comparative Example 2, since the viscosity of the paint was high, the leveling property was lowered, and roving occurred in the coating film.

本発明の実施の形態の一例を示す概略の断面図である。It is a schematic sectional drawing which shows an example of embodiment of this invention.

符号の説明Explanation of symbols

1 基材
2 着色塗膜
3 光輝材含有クリア塗膜
4 クリア塗膜
DESCRIPTION OF SYMBOLS 1 Base material 2 Colored coating film 3 Bright material containing clear coating film 4 Clear coating film

Claims (6)

基材の表面に着色塗膜を形成し、前記着色塗膜の表面における、この表面面積に対して30〜70%の範囲に、光輝材を含有すると共に粘度が30〜60秒(イワタカップ)の範囲のクリア塗料を塗布成膜することで、光輝材を7〜20質量%の範囲で含有する光輝材含有クリア塗膜を形成し、前記着色塗膜及び光輝材含有クリア塗膜が形成された基材の表面にクリア塗膜を形成して成ることを特徴とする塗装基材。 A colored coating film is formed on the surface of the base material, and it contains a glittering material in a range of 30 to 70% of the surface area of the colored coating film and has a viscosity of 30 to 60 seconds (Iwata Cup). ) To form a glittering material-containing clear coating film containing the glittering material in a range of 7 to 20% by mass, and the colored coating film and the glittering material-containing clear coating film are formed. A coated base material comprising a clear coating film formed on the surface of the base material. 上記光輝材含有クリア塗膜が、着色顔料を0.2〜7質量%の範囲で含有することを特徴とする請求項1に記載の塗装基材。   2. The coated base material according to claim 1, wherein the glittering material-containing clear coating film contains a color pigment in a range of 0.2 to 7% by mass. 上記光輝材含有クリア塗膜が、フレキソ印刷により形成されたものであることを特徴とする請求項1又は2に記載の塗装基材。   The painted substrate according to claim 1 or 2, wherein the glittering material-containing clear coating film is formed by flexographic printing. 上記基材が表面に凹凸を有し、上記光輝材含有クリア塗膜が前記基材の凸部に設けられていることを特徴とする請求項1乃至3のいずれか一項に記載の塗装基材。   The coating base according to any one of claims 1 to 3, wherein the base material has irregularities on the surface, and the glittering material-containing clear coating film is provided on a convex portion of the base material. Wood. 基材の表面に着色塗膜を形成し、前記着色塗膜の表面における、この表面の面積に対して30〜70%の範囲に、光輝材を含有すると共に粘度が30〜60秒(イワタカップ)の範囲のクリア塗料を塗布成膜することで、光輝材を7〜20質量%の範囲で含有する光輝材含有クリア塗膜を形成し、前記着色塗膜及び光輝材含有クリア塗膜が形成された基材の表面にクリア塗膜を形成する塗装基材の製造方法。A colored coating film is formed on the surface of the base material, and it contains a glittering material in a range of 30 to 70% of the surface area of the colored coating film and has a viscosity of 30 to 60 seconds (Iwata Cup). ) To form a glittering material-containing clear coating film containing the glittering material in a range of 7 to 20% by mass, and the colored coating film and the glittering material-containing clear coating film are formed. The manufacturing method of the coating base material which forms a clear coating film on the surface of the made base material. 前記光輝材含有クリア塗膜を、フレキソ版として窯変調模様を刻設したものを用いて、フレキソ印刷により形成することを特徴とする請求項5に記載の塗装基材の製造方法。The method for producing a coated base material according to claim 5, wherein the glittering material-containing clear coating film is formed by flexographic printing using a flexographic printing plate having a kiln modulation pattern.
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