JP2022100294A - Film formation method - Google Patents

Film formation method Download PDF

Info

Publication number
JP2022100294A
JP2022100294A JP2021208507A JP2021208507A JP2022100294A JP 2022100294 A JP2022100294 A JP 2022100294A JP 2021208507 A JP2021208507 A JP 2021208507A JP 2021208507 A JP2021208507 A JP 2021208507A JP 2022100294 A JP2022100294 A JP 2022100294A
Authority
JP
Japan
Prior art keywords
weight
parts
water
pigment
topcoat material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2021208507A
Other languages
Japanese (ja)
Inventor
遼典 五呂
Ryosuke Goro
浩直 守本
Hironao Morimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beck Co Ltd
Original Assignee
Beck Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beck Co Ltd filed Critical Beck Co Ltd
Publication of JP2022100294A publication Critical patent/JP2022100294A/en
Pending legal-status Critical Current

Links

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

To provide a method for easily forming a coated surface having such natural texture in which different color tones are mixed and having high beauty appearance.SOLUTION: A film formation method includes a step (1) of coating at least two aqueous coating materials to a coated surface, and forming a coating surface, a step (2) of supplying water and/or a hydrophilic solvent to the coating surface, and uniformizing the coating surface using a pressing tool, and a step (3) of drying the coating surface, in which the aqueous coating materials each contains an aggregate, an extender pigment, an aqueous resin, and a hydrophobic solvent, and at least the one aqueous coating material further contains a coloring pigment.SELECTED DRAWING: None

Description

本発明は、建築物内外壁や土木構築物等の表面化粧に適用可能な被膜面の形成方法に関するものである。 The present invention relates to a method for forming a coated surface applicable to surface makeup of inner and outer walls of buildings and civil engineering structures.

従来、建築物、土木構造物等の壁面に対し、種々の模様を有する被膜を形成することが行われている。このような被膜の一例として、複数の上塗材を用いて、異なる色調が混在する模様を形成したものが挙げられる。 Conventionally, a coating having various patterns has been formed on the wall surface of a building, a civil engineering structure, or the like. As an example of such a coating, a pattern in which different color tones are mixed is formed by using a plurality of topcoat materials.

特許文献1には、色調の異なる2色以上の着色エマルション塗料を、順次塗り重ねた後、その被膜が流動状態の内に、被膜を押圧して模様被膜を形成する方法が開示されている。 Patent Document 1 discloses a method in which two or more colored emulsion paints having different color tones are sequentially applied and then the film is pressed to form a pattern film while the film is in a flowing state.

特開2002-263565号公報JP-A-2002-263565

しかしながら、特許文献1では、樹脂エマルションと着色顔料を主成分とする着色エマルション塗料を用いている。そのため、形成被膜の色彩は、ペンキ調の発色に基づくものとなり、質感の点では改善の余地がある。また、特許文献1の方法では、2色以上の着色エマルション塗料が流動状態である内は、これらが相互に混ざりやすく、形成被膜が単色化するおそれがある。さらに、特許文献1の方法では、被膜を押圧する際、被膜に糸引き等が生じ、美観性が損なわれるおそれがある。 However, Patent Document 1 uses a colored emulsion paint containing a resin emulsion and a colored pigment as main components. Therefore, the color of the formed film is based on the paint-like color development, and there is room for improvement in terms of texture. Further, in the method of Patent Document 1, while the colored emulsion paints of two or more colors are in a fluid state, they are easily mixed with each other, and the formed film may become monochromatic. Further, in the method of Patent Document 1, when the coating film is pressed, stringing or the like may occur in the coating film, and the aesthetic appearance may be impaired.

本発明は、このような課題に鑑みなされたものであり、異なる色調が混在する自然な質感を備えた美観性の高い被膜面を容易に形成できる方法を提供することを目的とする。 The present invention has been made in view of such a problem, and an object of the present invention is to provide a method capable of easily forming a highly aesthetically pleasing coated surface having a natural texture in which different color tones are mixed.

本発明者は、上記課題を解決するため鋭意検討の結果、少なくとも2種の特定上塗材を塗付して塗面を形成する工程、当該塗面に水及び/又は親水性溶剤を供給し、押圧具を用いて当該塗面を均す工程等を行う被膜形成方法に想到し、本発明を完成するに至った。 As a result of diligent studies to solve the above problems, the present inventor has applied at least two kinds of specific topcoat materials to form a coated surface, and supplied water and / or a hydrophilic solvent to the coated surface. We came up with a film forming method that performs a step of leveling the coated surface using a pressing tool, and completed the present invention.

すなわち、本発明は以下の特徴を有するものである。
1.異なる色調が混在する被膜面を形成する被膜形成方法であって、
被塗面に対し、
(1)少なくとも2種の水性上塗材を塗付して塗面を形成する工程、
(2)当該塗面に水及び/又は親水性溶剤を供給し、押圧具を用いて当該塗面を均す工程、
(3)当該塗面を乾燥させる工程、
を行うものであり、
上記水性上塗材は、それぞれ、骨材、体質顔料、水性樹脂、及び疎水性溶剤を含み、
上記水性上塗材のうち、少なくとも1種は、さらに着色顔料を含むものであることを特徴とする被膜形成方法。
2.上記水性上塗材は、それぞれ、骨材100重量部に対し、体質顔料20~500重量部、水性樹脂3~30重量部、及び疎水性溶剤0.1~50重量部を含み、
上記水性上塗材のうち、少なくとも1種は、さらに着色顔料1~100重量部を含むものであることを特徴とする1.記載の被膜形成方法。
3.上記(1)工程において、コテを用いて塗面を形成することを特徴とする1.または2.に記載の被膜形成方法。
4.上記(2)工程において、コテを用いて塗面を均すことを特徴とする1.~3.のいずれかに記載の被膜形成方法。
That is, the present invention has the following features.
1. 1. It is a film forming method for forming a film surface in which different color tones are mixed.
For the surface to be coated
(1) A step of applying at least two kinds of water-based topcoat materials to form a coated surface.
(2) A step of supplying water and / or a hydrophilic solvent to the coated surface and leveling the coated surface using a pressing tool.
(3) The process of drying the coated surface,
Is to do
The water-based topcoat material contains an aggregate, an extender pigment, a water-based resin, and a hydrophobic solvent, respectively.
A method for forming a film, wherein at least one of the above-mentioned water-based topcoat materials further contains a coloring pigment.
2. 2. The water-based topcoat material contains 20 to 500 parts by weight of the extender pigment, 3 to 30 parts by weight of the water-based resin, and 0.1 to 50 parts by weight of the hydrophobic solvent with respect to 100 parts by weight of the aggregate.
1. Among the above-mentioned water-based topcoat materials, at least one of them further contains 1 to 100 parts by weight of a coloring pigment. The film forming method according to the above.
3. 3. 1. The step (1) is characterized in that a coated surface is formed using a trowel. Or 2. The film forming method according to.
4. 1. The step (2) is characterized in that the coated surface is leveled using a trowel. ~ 3. The film forming method according to any one of.

本発明によれば、異なる色調が混在する自然な質感を備えた美観性の高い被膜面を容易に形成できる。 According to the present invention, it is possible to easily form a highly aesthetically pleasing coated surface having a natural texture in which different color tones are mixed.

以下、本発明を実施するための形態について詳細に説明する。 Hereinafter, embodiments for carrying out the present invention will be described in detail.

本発明は、異なる色調が混在する被膜面を形成する被膜形成方法である。本発明では、被塗面に対し、特定の水性上塗材を用いて被膜面を形成する。 The present invention is a film forming method for forming a film surface in which different color tones are mixed. In the present invention, a coated surface is formed on the surface to be coated by using a specific water-based topcoat material.

[被塗面]
被塗面としては、例えば、建築物内外壁や土木構造物等を構成するものが挙げられる。被塗面を構成する基材としては、例えば、コンクリート、モルタル、磁器タイル、繊維混入セメント板、セメント珪酸カルシウム板、スラグセメントパーライト板、セメント板、ALC板、サイディング板、石膏ボード、合板、押出成形板、鋼板、プラスチック板等が挙げられる。これら基材の表面は、何らかの表面処理(例えば、パテ、シーラー、サーフェーサー、フィラー等による処理)が施されたものでもよく、既に塗膜が形成されたものや、壁紙等が貼着されたもの等であってもよい。
[Applied surface]
Examples of the surface to be coated include those constituting an inner / outer wall of a building, a civil engineering structure, and the like. Examples of the base material constituting the surface to be coated include concrete, mortar, porcelain tile, fiber-mixed cement board, cement calcium silicate board, slag cement pearlite board, cement board, ALC board, siding board, gypsum board, plywood, and extrusion. Examples include molded plates, steel plates, and plastic plates. The surface of these base materials may be subjected to some kind of surface treatment (for example, treatment with putty, sealer, surfacer, filler, etc.), one having a coating film already formed, or one having wallpaper or the like attached. And so on.

[水性上塗材]
本発明では、少なくとも2種の水性上塗材、すなわち水性上塗材セットを用いる。これら水性上塗材は、それぞれ、骨材、体質顔料、水性樹脂、及び疎水性溶剤を含み、これら水性上塗材のうち、少なくとも1種は着色顔料を含む。本発明では、このような少なくとも2種の異色の上塗材を使用することにより、異なる色調が混在する自然の質感を備えた美観性の高い被膜面を容易に形成することができる。
[Aqueous topcoat material]
In the present invention, at least two kinds of water-based topcoat materials, that is, a water-based topcoat material set are used. Each of these water-based topcoat materials contains an aggregate, an extender pigment, a water-based resin, and a hydrophobic solvent, and at least one of these water-based topcoat materials contains a coloring pigment. In the present invention, by using at least two kinds of different color topcoat materials, it is possible to easily form a highly aesthetically pleasing coated surface having a natural texture in which different color tones are mixed.

本発明における水性上塗材は、主成分として骨材を含む。このような骨材は、自然な質感の付与、単色化の抑制等に寄与する成分である。骨材としては、例えば、大理石、御影石、蛇紋岩、花崗岩、蛍石、寒水石、長石、珪石、珪砂等の粉砕物、陶磁器粉砕物、セラミック粉砕物、ガラス粉砕物、ガラスビーズ、樹脂粉砕物、樹脂ビーズ、金属粒等、あるいは、これらの表面を着色コーティングしたもの等が挙げられる。これらは、1種または2種以上で使用できる。 The water-based topcoat material in the present invention contains an aggregate as a main component. Such an aggregate is a component that contributes to imparting a natural texture and suppressing monochromaticization. Aggregates include, for example, crushed materials such as marble, granite, serpentine, granite, fluorite, cold water stone, long stone, silica stone, and silica sand, crushed ceramics, crushed ceramics, crushed glass, glass beads, and crushed resin. , Resin beads, metal particles, etc., or those whose surface is colored and coated, and the like. These can be used alone or in combination of two or more.

水性上塗材は、骨材として着色骨材を含むことができる。着色骨材としては、何らかの色が視認できる骨材が使用できる。着色骨材の色は、例えば、天然由来のものであってもよいし、人工的に付与されたものであってもよい。本発明では、このような着色骨材の使用により、着色顔料と着色骨材による複合的な発色が可能となり、質感、自然感、きめ細やかさ等を高めることができ、単色化抑制等の効果を高めることもできる。 The water-based topcoat material can include colored aggregate as the aggregate. As the colored aggregate, an aggregate in which some color can be visually recognized can be used. The color of the colored aggregate may be, for example, naturally derived or artificially applied. In the present invention, by using such a colored aggregate, it is possible to develop a complex color by the colored pigment and the colored aggregate, and it is possible to enhance the texture, natural feeling, fineness and the like, and the effect of suppressing monochromaticization and the like. Can also be increased.

骨材は、後述の体質顔料や着色顔料よりも、平均粒子径が大であることが望ましい。骨材の平均粒子径は、好ましくは0.05~3mm、より好ましくは0.06~1mm、さらに好ましくは0.07~0.5mm、特に好ましくは0.075~0.2mmである。骨材がこのような平均粒子径を有することにより、比較的少ない塗付け量で美観性の高い被膜面を形成することができ、被膜の薄膜化、軽量化等を図ることもできる。なお、骨材の平均粒子径は、JIS Z8801-1:2000に規定される金属製網ふるいを用いてふるい分けを行い、その重量分布の平均値を算出することによって得られる値である。なお、本発明において、「α~β」は「α以上β以下」と同義である。 It is desirable that the aggregate has a larger average particle size than the extender pigment and the coloring pigment described later. The average particle size of the aggregate is preferably 0.05 to 3 mm, more preferably 0.06 to 1 mm, still more preferably 0.07 to 0.5 mm, and particularly preferably 0.075 to 0.2 mm. Since the aggregate has such an average particle size, it is possible to form a highly aesthetically pleasing coating surface with a relatively small amount of coating, and it is also possible to reduce the thickness and weight of the coating. The average particle size of the aggregate is a value obtained by sieving using a metal net sieve specified in JIS Z8801-1: 2000 and calculating the average value of the weight distribution. In the present invention, "α to β" is synonymous with "α or more and β or less".

水性上塗材における体質顔料は、自然な質感の付与、濃淡変化の付与、単色化の抑制、塗装作業性向上化等に寄与する成分である。体質顔料としては、例えば、重質炭酸カルシウム、軽微性炭酸カルシウム、カオリン、クレー、陶土、チャイナクレー、珪藻土、含水微粉珪酸、タルク、バライト粉、硫酸バリウム、沈降性硫酸バリウム、炭酸バリウム、炭酸マグネシウム、シリカ粉、水酸化アルミニウム等が挙げられ、これらの1種または2種以上を使用することができる。体質顔料の平均粒子径は、好ましくは50μm未満、より好ましくは0.5~45μm、さらに好ましくは1~40μmである。体質顔料の平均粒子径は、レーザー回折式粒度分布測定装置によって測定される値である。 The extender pigment in the water-based topcoat material is a component that contributes to imparting a natural texture, imparting a change in shade, suppressing monochromaticization, improving coating workability, and the like. Examples of the extender pigment include heavy calcium carbonate, light calcium carbonate, kaolin, clay, porcelain clay, China clay, diatomaceous earth, hydrous fine powder silicic acid, talc, barite powder, barium sulfate, precipitated barium sulfate, barium carbonate, and magnesium carbonate. , Silica powder, aluminum hydroxide and the like, and one or more of these can be used. The average particle size of the extender pigment is preferably less than 50 μm, more preferably 0.5 to 45 μm, and even more preferably 1 to 40 μm. The average particle size of the extender pigment is a value measured by a laser diffraction type particle size distribution measuring device.

体質顔料の混合比率は、骨材100重量部に対し20~500重量部とすることができ、好ましくは70~350重量部、より好ましくは90~300重量部、さらに好ましくは100~250重量部である。体質顔料の混合比率が、上記下限以上であることにより、自然な質感の付与、濃淡変化の付与、単色化の抑制、塗装作業性向上化等の点で好適である。体質顔料の混合比率が、上記上限以下であることにより、自然な質感の付与、塗装作業性向上化、被膜割れ抑制等の点で好適である。 The mixing ratio of the extender pigment can be 20 to 500 parts by weight, preferably 70 to 350 parts by weight, more preferably 90 to 300 parts by weight, and further preferably 100 to 250 parts by weight with respect to 100 parts by weight of the aggregate. Is. When the mixing ratio of the extender pigment is at least the above lower limit, it is suitable in terms of imparting a natural texture, imparting a change in shade, suppressing monochromaticization, improving coating workability, and the like. When the mixing ratio of the extender pigment is not more than the above upper limit, it is suitable in terms of imparting a natural texture, improving coating workability, suppressing film cracking, and the like.

本発明では、少なくとも1種の水性上塗材が、着色顔料を含む。着色顔料は、被膜面の発色に寄与する成分である。着色顔料としては、例えば、酸化チタン、酸化亜鉛、カーボンブラック、黒鉛、黒色酸化鉄、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、銅-マグネシウム複合酸化物、ビスマス-マンガン複合酸化物、弁柄、モリブデートオレンジ、パーマネントレッド、パーマネントカーミン、アントラキノンレッド、ペリレンレッド、キナクリドンレッド、黄色酸化鉄、チタンイエロー、ファーストイエロー、ベンツイミダゾロンイエロー、クロムグリーン、コバルトグリーン、フタロシアニングリーン、群青、紺青、コバルトブルー、フタロシアニンブルー、キナクリドンバイオレット、ジオキサジンバイオレット、アルミニウム顔料、パール顔料等が挙げられる。これらは、1種または2種以上で使用できる。着色顔料の平均粒子径は、好ましくは2μm以下、より好ましくは0.01~1μmである。着色顔料の平均粒子径は、レーザー回折式粒度分布測定装置によって測定される値である。 In the present invention, at least one water-based topcoat material contains a color pigment. The coloring pigment is a component that contributes to the color development of the film surface. Examples of the coloring pigment include titanium oxide, zinc oxide, carbon black, graphite, black iron oxide, iron-manganese composite oxide, iron-copper-manganese composite oxide, iron-chromium composite oxide, and iron-chromium-cobalt. Composite oxide, copper-chromium composite oxide, copper-manganese-chromium composite oxide, copper-magnesium composite oxide, bismuth-manganese composite oxide, petals, molybdate orange, permanent red, permanent carmine, anthraquinone red, Perylene Red, Kinacridon Red, Yellow Iron Oxide, Titanium Yellow, First Yellow, Benzimidazolone Yellow, Chrome Green, Cobalt Green, Phthalocyanin Green, Ultramarine, Navy Blue, Cobalt Blue, Phtalussinin Blue, Kinacridone Violet, Dioxazine Violet, Aluminum Pigment, Examples include pearl pigments. These can be used alone or in combination of two or more. The average particle size of the coloring pigment is preferably 2 μm or less, more preferably 0.01 to 1 μm. The average particle size of the coloring pigment is a value measured by a laser diffraction type particle size distribution measuring device.

水性上塗材が着色顔料を含む場合、着色顔料の混合比率は、骨材100重量部に対し、固形分換算で1~100重量部とすることができ、好ましくは2~80重量部、より好ましくは3~60重量部、さらに好ましくは4~40重量部である。着色顔料の混合比率が、上記下限以上であることにより、発色性、隠蔽性、濃淡変化の付与等の点で好適である。着色顔料の混合比率が、上記上限以下であることにより、自然な質感の付与、被膜割れ抑制等の点で好適である。2種以上の水性上塗材が着色顔料を含む場合は、少なくとも1種(好ましくは2種以上)の水性上塗材が、上記の着色顔料混合比率の条件を満たせばよい。 When the water-based topcoat material contains a coloring pigment, the mixing ratio of the coloring pigment can be 1 to 100 parts by weight in terms of solid content with respect to 100 parts by weight of the aggregate, preferably 2 to 80 parts by weight, more preferably. Is 3 to 60 parts by weight, more preferably 4 to 40 parts by weight. When the mixing ratio of the coloring pigment is at least the above lower limit, it is suitable in terms of color development, hiding power, imparting shading change, and the like. When the mixing ratio of the coloring pigment is not more than the above upper limit, it is suitable in terms of imparting a natural texture, suppressing film cracking, and the like. When two or more kinds of water-based topcoat materials contain a coloring pigment, at least one kind (preferably two or more kinds) of water-based topcoating material may satisfy the above-mentioned condition of the coloring pigment mixing ratio.

水性上塗材における水性樹脂は、骨材、体質顔料、着色顔料等を固定化する役割等を担う成分である。水性樹脂としては、水溶性樹脂及び/または水分散性樹脂(樹脂エマルション)が使用でき、とりわけ水分散性樹脂を含む態様が好適である。水溶性樹脂及び/または水分散性樹脂の使用により、水性上塗材を得ることができる。樹脂の種類としては、例えば、セルロース、ポリビニルアルコール、エチレン樹脂、酢酸ビニル樹脂、ポリエステル樹脂、アルキッド樹脂、塩化ビニル樹脂、エポキシ樹脂、アクリル樹脂、ウレタン樹脂、アクリルシリコン樹脂、フッ素樹脂等、あるいはこれらの複合系等を挙げることができる。これらは1種または2種以上で使用することができる。また、これら水性樹脂は、架橋反応性を有するもの、架橋反応性を有さないもののいずれであってもよい。水性樹脂のガラス転移温度は、好ましくは-30~70℃、より好ましくは-20~50℃である。ガラス転移温度は、Foxの計算式により求めることができる。 The water-based resin in the water-based topcoat material is a component that plays a role of immobilizing aggregates, extender pigments, coloring pigments and the like. As the water-based resin, a water-soluble resin and / or a water-dispersible resin (resin emulsion) can be used, and an embodiment containing a water-dispersible resin is particularly preferable. A water-based topcoat material can be obtained by using a water-soluble resin and / or a water-dispersible resin. Examples of the type of resin include cellulose, polyvinyl alcohol, ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, acrylic silicon resin, fluororesin, and the like, or these. A complex system or the like can be mentioned. These can be used alone or in combination of two or more. Further, these aqueous resins may be either those having a cross-linking reactivity or those having no cross-linking reactivity. The glass transition temperature of the aqueous resin is preferably −30 to 70 ° C., more preferably −20 to 50 ° C. The glass transition temperature can be obtained by the Fox calculation formula.

水性樹脂として、架橋反応性を有する結合材を使用した場合は、被膜の耐久性、耐候性等を高めることができ、割れ、剥れ、膨れ等の不具合発生を防止し、長期にわたり初期の美観性を保つことが可能となる。このような水性樹脂としては、例えば、反応性官能基含有水性樹脂とその架橋剤とで架橋反応するもの、あるいは、反応性官能基含有水性樹脂どうしで架橋反応するもの等が挙げられる。 When a cross-linking reactive binder is used as the water-based resin, the durability and weather resistance of the coating can be improved, defects such as cracking, peeling, and swelling can be prevented, and the initial aesthetic appearance for a long period of time. It becomes possible to maintain the sex. Examples of such an aqueous resin include those that undergo a cross-linking reaction between a reactive functional group-containing aqueous resin and a cross-linking agent thereof, and those that undergo a cross-linking reaction between reactive functional group-containing aqueous resins.

このような反応性官能基の組み合わせとしては、例えば、カルボキシル基とカルボジイミド基、カルボキシル基とエポキシ基、カルボキシル基とアジリジン基、カルボキシル基とオキサゾリン基、ヒドロキシル基とイソシアネート基、カルボニル基とヒドラジド基、エポキシ基とヒドラジド基、エポキシ基とアミノ基、アルド基とセミカルバジド基、ケト基とセミカルバジド基、アルコキシシリル基どうし、カルボキシル基と金属化合物等の組み合わせが挙げられる。これらは1種または2種以上で使用できる。 Examples of such a combination of reactive functional groups include a carboxyl group and a carbodiimide group, a carboxyl group and an epoxy group, a carboxyl group and an aziridine group, a carboxyl group and an oxazoline group, a hydroxyl group and an isocyanate group, and a carbonyl group and a hydrazide group. Examples thereof include a combination of an epoxy group and a hydrazide group, an epoxy group and an amino group, an ald group and a semicarbazide group, a keto group and a semicarbazide group, an alkoxysilyl group, a carboxyl group and a metal compound, and the like. These can be used in one type or two or more types.

水性樹脂の混合比率は、骨材100重量部に対し、固形分換算で3~30重量部とすることができ、好ましくは4~25重量部、より好ましくは5~20重量部、さらに好ましくは6~19重量部である。水性樹脂の混合比率が、上記下限以上であることにより、塗装作業性向上化、被膜割れ抑制等の点で好適である。水性樹脂の混合比率が、上記上限以下であることにより、塗装作業性向上化、自然な質感の付与等の点で好適である。 The mixing ratio of the aqueous resin can be 3 to 30 parts by weight in terms of solid content with respect to 100 parts by weight of the aggregate, preferably 4 to 25 parts by weight, more preferably 5 to 20 parts by weight, still more preferably. 6 to 19 parts by weight. When the mixing ratio of the water-based resin is at least the above lower limit, it is suitable in terms of improving coating workability and suppressing film cracking. When the mixing ratio of the water-based resin is not more than the above upper limit, it is suitable in terms of improving coating workability and imparting a natural texture.

水性上塗材における疎水性溶剤は、塗装作業性向上化、被膜割れ抑制等、ひいては被膜の美観性向上化に寄与する成分である。 The hydrophobic solvent in the water-based topcoat material is a component that contributes to the improvement of coating workability, suppression of film cracking, and the improvement of the aesthetic appearance of the film.

疎水性溶剤としては、20℃における水への溶解度が10g/100gHO以下(より好ましくは8g/100gHO以下、さらに好ましくは6g/100gHO以下、特に好ましくは5g/100gHO以下)の疎水性溶剤を含むことが好ましい。なお、20℃における水への溶解度は、対象溶剤が水100gに溶解し得る最大質量(g)のことである。 As the hydrophobic solvent, the solubility in water at 20 ° C. is 10 g / 100 gH 2 O or less (more preferably 8 g / 100 gH 2 O or less, still more preferably 6 g / 100 gH 2 O or less, and particularly preferably 5 g / 100 gH 2 O or less. ) Is preferably contained. The solubility in water at 20 ° C. is the maximum mass (g) at which the target solvent can be dissolved in 100 g of water.

疎水性溶剤の具体例としては、例えば、エチレングリコールモノヘキシルエーテル、エチレングリコール-2-エチルヘキシルエーテル、エチレングリコールモノブチルエーテルアセテート、エチレングリコールジブチルエーテル、ジエチレングリコールモノヘキシルエーテル、ジエチレングリコールモノブチルエーテルアセテート、ジエチレングリコールジブチルエーテル、プロピレングリコールモノブチルエーテル、プロピレングリコールフェニルエーテル、プロピレングリコールジアセテート、ジプロピレングリコールモノブチルエーテル、ジプロピレングリコールターシャリーブチルエーテル、トリプロピレングリコールモノブチルエーテル、オクチレングリコール、2-エチルヘキシレングリコール、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、ベンジルアルコール等が挙げられる。これらは1種または2種以上で使用することができる。 Specific examples of the hydrophobic solvent include, for example, ethylene glycol monohexyl ether, ethylene glycol-2-ethylhexyl ether, ethylene glycol monobutyl ether acetate, ethylene glycol dibutyl ether, diethylene glycol monohexyl ether, diethylene glycol monobutyl ether acetate, diethylene glycol dibutyl ether, and the like. Propylene glycol monobutyl ether, propylene glycol phenyl ether, propylene glycol diacetate, dipropylene glycol monobutyl ether, dipropylene glycol tertiary butyl ether, tripropylene glycol monobutyl ether, octylene glycol, 2-ethylhexylene glycol, 2,2,4 -Methyl-1,3-pentanediol monoisobutyrate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, benzyl alcohol and the like can be mentioned. These can be used alone or in combination of two or more.

疎水性溶剤の混合比率は、骨材100重量部に対し0.1~50重量部とすることができ、好ましくは0.5~40重量部、より好ましくは0.8~30重量部、さらに好ましくは1~20重量部である。疎水性溶剤の混合比率が、上記下限以上であることにより、塗装作業性向上化、被膜割れ抑制等の点で好適である。疎水性溶剤の混合比率が、上記上限以下であることにより、水性上塗材の安定性確保等の点で好適であり、塗装作業性向上化、被膜割れ抑制等の効果を十分に得ることができる。 The mixing ratio of the hydrophobic solvent can be 0.1 to 50 parts by weight with respect to 100 parts by weight of the aggregate, preferably 0.5 to 40 parts by weight, more preferably 0.8 to 30 parts by weight, and further. It is preferably 1 to 20 parts by weight. When the mixing ratio of the hydrophobic solvent is at least the above lower limit, it is suitable in terms of improving coating workability and suppressing film cracking. When the mixing ratio of the hydrophobic solvent is not more than the above upper limit, it is suitable in terms of ensuring the stability of the aqueous topcoat material, and it is possible to sufficiently obtain effects such as improvement of coating workability and suppression of film cracking. ..

水性上塗材は、それぞれ、本発明の効果を著しく損なわない限り、上記以外の成分を含むこともできる。このような成分としては、例えば、増粘剤、造膜助剤、レベリング剤、湿潤剤、可塑剤、凍結防止剤、pH調整剤、防腐剤、防黴剤、防藻剤、抗菌剤、分散剤、消泡剤、吸着剤、繊維、撥水剤、親水化剤、架橋剤、カップリング剤、親水性溶剤、紫外線吸収剤、光安定剤、酸化防止剤、触媒等が挙げられる。 Each of the water-based topcoat materials may contain components other than the above as long as the effects of the present invention are not significantly impaired. Examples of such components include thickeners, film-forming aids, leveling agents, wetting agents, plasticizers, antifreeze agents, pH adjusters, preservatives, fungicides, algae-proofing agents, antibacterial agents, and dispersions. Examples thereof include agents, antifoaming agents, adsorbents, fibers, water repellents, hydrophilic agents, cross-linking agents, coupling agents, hydrophilic solvents, ultraviolet absorbers, light stabilizers, antioxidants, catalysts and the like.

本発明の水性上塗材は、上述の骨材、体質顔料、着色顔料、水性樹脂、疎水性溶剤、及び必要に応じ上記各成分等を常法により均一に混合することで製造できる。 The water-based topcoat material of the present invention can be produced by uniformly mixing the above-mentioned aggregate, extender pigment, coloring pigment, water-based resin, hydrophobic solvent, and if necessary, each of the above-mentioned components and the like by a conventional method.

水性上塗材の粘度は、それぞれ、好ましくは5~150Pa・s、より好ましくは15~100Pa・s、さらに好ましくは25~75Pa・sである。水性上塗材がこのような粘度であることにより、水性上塗材の塗装作業性を確保しつつ、形成被膜の単色化抑制、濃淡変化の付与、美観性向上化等の効果を高めることができる。なお、ここに言う粘度は、温度23℃において、BH型粘度計で測定した20rpmにおける粘度(4回転目の指針値)である。 The viscosity of the water-based topcoat material is preferably 5 to 150 Pa · s, more preferably 15 to 100 Pa · s, and even more preferably 25 to 75 Pa · s, respectively. When the water-based topcoat material has such a viscosity, it is possible to enhance the effects such as suppressing the monochromaticization of the formed film, imparting a change in shade, and improving the aesthetic appearance while ensuring the coating workability of the water-based topcoat material. The viscosity referred to here is the viscosity at 20 rpm (guideline value at the 4th rotation) measured by a BH type viscometer at a temperature of 23 ° C.

本発明の水性上塗材セットは、少なくとも2種の異色の水性上塗材からなる。本発明において、少なくとも2種の水性上塗材の色調は、その違いが視認できる程度あればよく、互いの色差(△E)は、好ましくは1以上、より好ましくは2以上である。各水性上塗材の色調は、例えば、骨材、着色顔料等の配合により適宜設定することができる。水性上塗材セットが2種の水性上塗材からなる場合は、相互の色調が異色であればよい。水性上塗材セットが3種以上の水性上塗材からなる場合は、基準となる1種の水性上塗材に対し、他の水性上塗材のうち少なくとも1種が異色であればよい。 The water-based topcoat material set of the present invention comprises at least two different colored water-based topcoat materials. In the present invention, the color tones of at least two kinds of water-based topcoat materials may be such that the difference can be visually recognized, and the color difference (ΔE) between them is preferably 1 or more, more preferably 2 or more. The color tone of each water-based topcoat material can be appropriately set by blending, for example, an aggregate, a coloring pigment, or the like. When the water-based topcoat material set consists of two types of water-based topcoat materials, the mutual color tones may be different. When the water-based topcoat material set consists of three or more kinds of water-based topcoat materials, at least one of the other water-based topcoat materials may be different in color from one kind of reference water-based topcoat material.

本発明では、各水性上塗材の色差を比較的小さめ(例えば、色差1~10)に設定することにより、色合いが微妙に変化した被膜面を形成することができる。一方、各水性上塗材の色差を比較的大きめ(例えば、色差10超)に設定することにより、色の濃淡等が明確に視認可能な被膜面を形成することができる。 In the present invention, by setting the color difference of each water-based topcoat material to be relatively small (for example, color difference 1 to 10), it is possible to form a coated surface in which the hue is slightly changed. On the other hand, by setting the color difference of each water-based topcoat material to be relatively large (for example, a color difference of more than 10), it is possible to form a film surface in which the shade of color and the like are clearly visible.

なお、本発明における色差(△E)は、各水性上塗材の乾燥塗膜(標準白紙上に乾燥厚み1mmで形成)について、色彩色差計を用いて測定される値であり、各乾燥塗膜のL値、a値、b値(測定点10箇所以上の平均値)より下記式にて算出することができる。
<式>△E={(L 1-L 2+(a 1-a 2+(b 1-b 20.5
(式中、L 1、a 1、b 1は基準となる1種の上塗材のL、a、b。L 2、a 2、b 2は他の上塗材のL、a、b
The color difference (ΔE) in the present invention is a value measured by using a color difference meter for the dry coating film (formed on standard blank paper with a dry thickness of 1 mm) of each water-based topcoat material, and each dry coating film. It can be calculated by the following formula from the L * value, a * value, and b * value (average value of 10 or more measurement points) of.
<Equation> △ E = {(L * 1 -L * 2 ) 2 + (a * 1 -a * 2 ) 2 + (b * 1 -b * 2 ) 2 } 0.5
(In the formula, L * 1 , a * 1 , b * 1 are the standard topcoat materials L * , a * , b * .L * 2 , a * 2 , b * 2 are the other topcoat materials. L * , a * , b * )

本発明の水性上塗材セットは、上述の条件を満たす少なくとも2種の水性上塗材からなる。これら水性上塗材のうち、少なくとも1種は、着色顔料を含むものである。このような水性上塗材セットが2種の水性上塗材からなる場合、その態様としては、
・1種の水性上塗材が着色顔料を含み、他の水性上塗材は着色顔料を含まない態様
・2種の水性上塗材がいずれも着色顔料を含む態様
等が挙げられる。
The water-based topcoat material set of the present invention comprises at least two kinds of water-based topcoat materials satisfying the above conditions. At least one of these water-based topcoat materials contains a coloring pigment. When such a water-based topcoat material set consists of two types of water-based topcoat materials, as an embodiment thereof,
-One type of water-based topcoat material contains a coloring pigment, and the other water-based topcoating material does not contain a coloring pigment.-The two types of water-based topcoating materials both contain a coloring pigment.

また、水性上塗材セットが3種以上の上塗材からなる場合、その態様としては、
・1種の水性上塗材が着色顔料を含み、他の水性上塗材は着色顔料を含まない態様
・2種以上の水性上塗材が着色顔料を含み、他の水性上塗材は着色顔料を含まない態様
・3種以上の水性上塗材がいずれも着色顔料を含む態様
等が挙げられる。
In addition, when the water-based topcoat material set consists of three or more types of topcoat materials, as an embodiment thereof,
-One type of water-based topcoat material contains a coloring pigment, and the other water-based topcoating material does not contain a coloring pigment.-Two or more types of water-based topcoating materials contain a coloring pigment, and the other water-based topcoating material does not contain a coloring pigment. Aspects-Aspects in which three or more kinds of water-based topcoat materials all contain a coloring pigment and the like can be mentioned.

本発明の水性上塗材セットでは、各水性上塗材に含まれる骨材の平均粒子径が同程度であることが望ましい。各水性上塗材に含まれる骨材は、それら平均粒子径の差の絶対値が、好ましくは0.1mm以下、より好ましくは0.05mm以下である。 In the water-based topcoat material set of the present invention, it is desirable that the average particle size of the aggregate contained in each water-based topcoat material is about the same. The aggregate contained in each water-based topcoat material has an absolute value of the difference in average particle diameters of preferably 0.1 mm or less, more preferably 0.05 mm or less.

[被膜形成方法]
本発明では、被塗面に対し、
(1)少なくとも2種の水性上塗材を塗付して塗面を形成する工程、
(2)当該塗面に水及び/又は親水性溶剤を供給し、押圧具を用いて当該塗面を均す工程、
(3)当該塗面を乾燥させる工程、
を行う。
[Film formation method]
In the present invention, with respect to the surface to be coated
(1) A step of applying at least two kinds of water-based topcoat materials to form a coated surface.
(2) A step of supplying water and / or a hydrophilic solvent to the coated surface and leveling the coated surface using a pressing tool.
(3) The process of drying the coated surface,
I do.

本発明では、(1)工程の前に、下塗材を塗付して下塗被膜を形成することができる。 In the present invention, an undercoat material can be applied to form an undercoat film before the step (1).

下塗材としては、例えば、結合材、及び顔料成分を含むものが使用できる。顔料成分としては、着色顔料、体質顔料、骨材等が挙げられる。 As the undercoat material, for example, a binder material and a material containing a pigment component can be used. Examples of the pigment component include colored pigments, extender pigments, aggregates and the like.

結合材としては、各種樹脂が使用できる。樹脂の種類としては、例えば、セルロース、ポリビニルアルコール、エチレン樹脂、酢酸ビニル樹脂、ポリエステル樹脂、アルキッド樹脂、塩化ビニル樹脂、エポキシ樹脂、アクリル樹脂、ウレタン樹脂、アクリルシリコン樹脂、フッ素樹脂等、あるいはこれらの複合系等を挙げることができる。これらは1種または2種以上で使用することができる。結合材の形態としては、例えば、水溶性樹脂、水分散性樹脂(樹脂エマルション)、溶剤可溶形樹脂、無溶剤形樹脂、非水分散形樹脂、粉末樹脂等が挙げられ、この中でも水溶性樹脂及び/または水分散性樹脂が好ましく、とりわけ水分散性樹脂を含む態様が好適である。水溶性樹脂及び/または水分散性樹脂の使用により、水性下塗材を得ることができる。また、これら結合材は、架橋反応性を有するもの、架橋反応性を有さないもののいずれであってもよい。結合材として、架橋反応性を有する結合材を使用した場合は、被膜の密着性、耐久性等を高めることができ、割れ、剥れ、膨れ等の不具合発生を防止し、長期にわたり初期の美観性を保つことが可能となる。 Various resins can be used as the binder. Examples of the type of resin include cellulose, polyvinyl alcohol, ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, acrylic silicon resin, fluororesin, and the like, or these. A complex system or the like can be mentioned. These can be used alone or in combination of two or more. Examples of the form of the binder include water-soluble resin, water-dispersible resin (resin emulsion), solvent-soluble resin, solvent-free resin, non-water-dispersed resin, powder resin and the like, and among them, water-soluble. A resin and / or a water-dispersible resin is preferable, and an embodiment containing a water-dispersible resin is particularly preferable. A water-based undercoat material can be obtained by using a water-soluble resin and / or a water-dispersible resin. Further, these binders may be either those having a cross-linking reactivity or those having no cross-linking reactivity. When a cross-linking reactive binder is used as the binder, the adhesion and durability of the coating film can be improved, defects such as cracking, peeling and swelling can be prevented, and the initial aesthetic appearance for a long period of time. It becomes possible to maintain the sex.

着色顔料としては、例えば、酸化チタン、酸化亜鉛、カーボンブラック、黒鉛、黒色酸化鉄、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、銅-マグネシウム複合酸化物、ビスマス-マンガン複合酸化物、弁柄、モリブデートオレンジ、パーマネントレッド、パーマネントカーミン、アントラキノンレッド、ペリレンレッド、キナクリドンレッド、黄色酸化鉄、チタンイエロー、ファーストイエロー、ベンツイミダゾロンイエロー、クロムグリーン、コバルトグリーン、フタロシアニングリーン、群青、紺青、コバルトブルー、フタロシアニンブルー、キナクリドンバイオレット、ジオキサジンバイオレット、アルミニウム顔料、パール顔料等が挙げられる。これらは、1種または2種以上で使用できる。着色顔料の平均粒子径は、好ましくは2μm以下、より好ましくは0.01~1μmである。着色顔料の平均粒子径は、レーザー回折式粒度分布測定装置によって測定される値である。 Examples of the coloring pigment include titanium oxide, zinc oxide, carbon black, graphite, black iron oxide, iron-manganese composite oxide, iron-copper-manganese composite oxide, iron-chromium composite oxide, and iron-chromium-cobalt. Composite oxide, copper-chromium composite oxide, copper-manganese-chromium composite oxide, copper-magnesium composite oxide, bismuth-manganese composite oxide, petals, molybdate orange, permanent red, permanent carmine, anthraquinone red, Perylene Red, Kinacridon Red, Yellow Iron Oxide, Titanium Yellow, First Yellow, Benzimidazolone Yellow, Chrome Green, Cobalt Green, Phthalocyanin Green, Ultramarine, Navy Blue, Cobalt Blue, Phtalussinin Blue, Kinacridone Violet, Dioxazine Violet, Aluminum Pigment, Examples include pearl pigments. These can be used alone or in combination of two or more. The average particle size of the coloring pigment is preferably 2 μm or less, more preferably 0.01 to 1 μm. The average particle size of the coloring pigment is a value measured by a laser diffraction type particle size distribution measuring device.

体質顔料としては、例えば、重質炭酸カルシウム、軽微性炭酸カルシウム、カオリン、クレー、陶土、チャイナクレー、珪藻土、含水微粉珪酸、タルク、バライト粉、硫酸バリウム、沈降性硫酸バリウム、炭酸バリウム、炭酸マグネシウム、シリカ粉、水酸化アルミニウム等が挙げられ、これらの1種または2種以上を使用することができる。体質顔料の平均粒子径は、好ましくは50μm未満、より好ましくは0.5~45μm、さらに好ましくは1~40μmである。体質顔料の平均粒子径は、レーザー回折式粒度分布測定装置によって測定される値である。 Examples of the extender pigment include heavy calcium carbonate, light calcium carbonate, kaolin, clay, porcelain clay, China clay, diatomaceous earth, hydrous fine powder silicic acid, talc, barite powder, barium sulfate, precipitated barium sulfate, barium carbonate, and magnesium carbonate. , Silica powder, aluminum hydroxide and the like, and one or more of these can be used. The average particle size of the extender pigment is preferably less than 50 μm, more preferably 0.5 to 45 μm, and even more preferably 1 to 40 μm. The average particle size of the extender pigment is a value measured by a laser diffraction type particle size distribution measuring device.

骨材としては、例えば、大理石、御影石、蛇紋岩、花崗岩、蛍石、寒水石、長石、珪石、珪砂等の粉砕物、陶磁器粉砕物、セラミック粉砕物、ガラス粉砕物、ガラスビーズ、樹脂粉砕物、樹脂ビーズ、金属粒等、あるいは、これらの表面を着色コーティングしたもの等が挙げられる。これらは、1種または2種以上で使用できる。骨材の平均粒子径は、好ましくは0.05~3mm、より好ましくは0.06~1mmである。なお、骨材の平均粒子径は、JIS Z8801-1:2000に規定される金属製網ふるいを用いてふるい分けを行い、その重量分布の平均値を算出することによって得られる値である。 Aggregates include, for example, crushed materials such as marble, granite, serpentine, granite, fluorite, cold water stone, long stone, silica stone, and silica sand, crushed ceramics, crushed ceramics, crushed glass, glass beads, and crushed resin. , Resin beads, metal particles, etc., or those whose surface is colored and coated, and the like. These can be used alone or in combination of two or more. The average particle size of the aggregate is preferably 0.05 to 3 mm, more preferably 0.06 to 1 mm. The average particle size of the aggregate is a value obtained by sieving using a metal net sieve specified in JIS Z8801-1: 2000 and calculating the average value of the weight distribution.

下塗材は、顔料成分として、少なくとも体質顔料及び/または骨材を含むものが好ましい。下塗材が体質顔料及び/または骨材を含むことにより、下塗被膜の表面に微細な凹凸構造が付与されやすくなり、本発明の効果発現の点で好適である。また、下塗材が着色顔料を含むことにより、下塗被膜を所望の色調に設定することができ、上塗材の近似色に設定することもできる。 The undercoat material preferably contains at least an extender pigment and / or an aggregate as a pigment component. When the undercoat material contains an extender pigment and / or an aggregate, a fine uneven structure is likely to be imparted to the surface of the undercoat film, which is preferable in terms of exhibiting the effect of the present invention. Further, when the undercoat material contains a coloring pigment, the undercoat film can be set to a desired color tone, and can be set to an approximate color of the topcoat material.

下塗材としては、例えば、顔料体積濃度20%以上の下塗材が使用できる。このような下塗材を用いて下塗被膜を形成することにより、(1)工程での上塗材の塗装作業(塗着ないし塗り広げ)を安定的に効率良く行うことができ、美観性向上化等の点で好適である。このような効果は、下塗被膜の表面に微細な凹凸構造が付与されること等によって奏されるものと考えられる。 As the undercoat material, for example, an undercoat material having a pigment volume concentration of 20% or more can be used. By forming the undercoat film using such an undercoat material, the coating work (coating or spreading) of the topcoat material in the step (1) can be performed stably and efficiently, and the aesthetics can be improved. It is suitable in that respect. It is considered that such an effect is exerted by imparting a fine uneven structure to the surface of the undercoat film.

下塗材の顔料体積濃度は20%以上とすることができ、好ましくは30~90%、より好ましくは40~80%である。下塗材の顔料体積濃度は、下塗材の乾燥被膜中に含まれる顔料成分の体積百分率であり、下塗材を構成する結合材及び顔料成分の配合量から計算により求められる値である。結合材の比重は1とする。 The pigment volume concentration of the undercoat material can be 20% or more, preferably 30 to 90%, and more preferably 40 to 80%. The pigment volume concentration of the undercoat material is a volume percentage of the pigment component contained in the dry film of the undercoat material, and is a value obtained by calculation from the blending amount of the binder and the pigment component constituting the undercoat material. The specific gravity of the binder is 1.

下塗材は、本発明の効果を著しく損なわない限り、上記以外の成分を含むこともできる。このような成分としては、例えば、増粘剤、造膜助剤、レベリング剤、湿潤剤、可塑剤、凍結防止剤、pH調整剤、防腐剤、防黴剤、防藻剤、抗菌剤、分散剤、消泡剤、吸着剤、繊維、撥水剤、親水化剤、架橋剤、カップリング剤、紫外線吸収剤、光安定剤、酸化防止剤、触媒等が挙げられる。 The undercoat material may contain components other than the above as long as the effects of the present invention are not significantly impaired. Examples of such components include thickeners, film-forming aids, leveling agents, wetting agents, plasticizers, antifreeze agents, pH regulators, preservatives, fungicides, algae-proofing agents, antibacterial agents, and dispersions. Examples thereof include agents, antifoaming agents, adsorbents, fibers, water repellents, hydrophilic agents, cross-linking agents, coupling agents, ultraviolet absorbers, light stabilizers, antioxidants, catalysts and the like.

下塗材は、上述の結合材、顔料成分、及び必要に応じ上記各成分等を常法により均一に混合することで製造できる。 The undercoat material can be produced by uniformly mixing the above-mentioned binder, pigment component, and if necessary, each of the above-mentioned components by a conventional method.

下塗材の塗装方法としては、例えば、スプレー塗り、ローラー塗り、こて塗り、刷毛塗り等を採用することができる。下塗材の塗付け量は、好ましくは0.05~1kg/m、より好ましくは0.1~0.5kg/mである。このような塗付け量の範囲内で、複数回に分けて塗装することも可能である。下塗材の塗装ないし乾燥は、好ましくは常温(0~40℃)で行えばよい。 As a coating method of the undercoat material, for example, spray coating, roller coating, trowel coating, brush coating and the like can be adopted. The amount of the undercoat material applied is preferably 0.05 to 1 kg / m 2 , more preferably 0.1 to 0.5 kg / m 2 . Within the range of such a coating amount, it is possible to apply the coating in a plurality of times. The undercoat material may be coated or dried preferably at room temperature (0 to 40 ° C.).

下塗材の顔料体積濃度が20%以上である場合、その下塗材によって形成される下塗被膜は、艶消し被膜とすることができる。その場合、下塗被膜の鏡面光沢度(測定角度60度)は、好ましくは40以下、より好ましくは20以下、さらに好ましくは10以下、特に好ましくは6以下である。このような下塗材は、本発明の効果向上化の点で好適である。なお、下塗被膜の鏡面光沢度は、ガラス板の片面に、すき間150μmのフィルムアプリケータを用いて下塗材を塗り、塗面を水平に置いて標準状態下(気温23℃、相対湿度50%)で48時間乾燥後、鏡面光沢度計を用いて幾何角度60度の鏡面光沢度を測定することにより得られる値である。 When the pigment volume concentration of the undercoat material is 20% or more, the undercoat film formed by the undercoat material can be a matte film. In that case, the mirror gloss (measurement angle 60 degrees) of the undercoat film is preferably 40 or less, more preferably 20 or less, still more preferably 10 or less, and particularly preferably 6 or less. Such an undercoat material is suitable in terms of improving the effect of the present invention. The mirror gloss of the undercoat film is such that the undercoat material is applied to one side of the glass plate using a film applicator with a gap of 150 μm, and the coated surface is placed horizontally under standard conditions (temperature 23 ° C, relative humidity 50%). It is a value obtained by measuring the mirror glossiness at a geometric angle of 60 degrees using a mirror surface gloss meter after drying for 48 hours.

本発明では、被塗面に対し、必要に応じ上記下塗材の塗装等を行った後、(1)工程として水性上塗材を塗装する。下塗材を用いる場合、水性上塗材の塗装は、下塗材の被膜が乾燥した後に行うことが望ましい。 In the present invention, the surface to be coated is coated with the undercoat material as necessary, and then the water-based topcoat material is applied as the step (1). When an undercoat material is used, it is desirable that the water-based topcoat material be applied after the film of the undercoat material has dried.

(1)工程では、少なくとも2種の水性上塗材を塗付して塗面を形成する。(1)工程では、上述のような水性上塗材セットを用いて塗装を行う。(1)工程では、各水性上塗材が被塗面上に混在する状態となるように、各水性上塗材を被塗面に塗着させ、これらを塗り広げることによって塗面を形成する。これにより、異なる色調が混在する被膜面を形成することができる。水性上塗材の塗付け量(各水性上塗材合計の塗付け量)は、好ましくは0.1~3kg/m、より好ましくは0.2~2kg/m、さらに好ましくは0.3~1kg/m、特に好ましくは0.4~0.9kg/mである。本発明では、比較的少ない塗付け量で美観性の高い被膜面を形成することができ、被膜の薄膜化、軽量化等を図ることもできる。 In the step (1), at least two kinds of water-based topcoat materials are applied to form a coated surface. In the step (1), painting is performed using the above-mentioned water-based topcoat material set. In the step (1), each water-based topcoat material is applied to the surface to be coated so that each water-based topcoat material is mixed on the surface to be coated, and the coated surface is formed by spreading these. This makes it possible to form a coated surface in which different color tones are mixed. The amount of the water-based topcoat material applied (the total amount of each water-based topcoat material applied) is preferably 0.1 to 3 kg / m 2 , more preferably 0.2 to 2 kg / m 2 , and even more preferably 0.3 to. It is 1 kg / m 2 , particularly preferably 0.4 to 0.9 kg / m 2 . In the present invention, it is possible to form a highly aesthetically pleasing film surface with a relatively small amount of coating, and it is also possible to reduce the thickness and weight of the film.

各水性上塗材を被塗面に塗着させる際には、例えば、スプレー、ローラー、コテ、ヘラ等の器具を用いることができる。各水性上塗材の被塗面への塗着は、乾燥前の各水性上塗材が同一被塗面上に混在して塗着されるように行えばよい。例えば、各水性上塗材が被塗面上に散在した状態、隣接した状態、一部混ざった状態、あるいは重なった状態等で塗着させることができる。各水性上塗材を被塗面に塗着させたときの形状や量は、所望の仕上り状態、美観性等に応じて適宜設定することができる。 When applying each water-based topcoat material to the surface to be coated, for example, an instrument such as a spray, a roller, a trowel, or a spatula can be used. The coating of each water-based topcoat material on the surface to be coated may be performed so that the water-based topcoat materials before drying are mixed and coated on the same surface to be coated. For example, each water-based topcoat material can be applied in a state of being scattered on the surface to be coated, a state of being adjacent to each other, a state of being partially mixed, a state of being overlapped, or the like. The shape and amount of each water-based topcoat material when it is applied to the surface to be coated can be appropriately set according to a desired finished state, aesthetic appearance, and the like.

水性上塗材を塗り広げる際には、例えば、コテ、ヘラ、ローラー等の器具を用いることができる。このうち、水性上塗材を塗り広げる際に、コテ、ヘラ等を使用した場合は、塗面を均すことで平坦な塗面が得られやすくなる。 When spreading the water-based topcoat material, for example, an instrument such as a trowel, a spatula, or a roller can be used. Of these, when a trowel, spatula, or the like is used when spreading the water-based topcoat material, a flat coated surface can be easily obtained by leveling the coated surface.

本発明では、(1)工程において、コテを用いて塗面を形成することが望ましい。具体的には、少なくとも水性上塗材を塗り広げる際に、コテを用いることが望ましく、水性上塗材を被塗面に塗着させる際及び水性上塗材を塗り広げる際に、コテを用いることがより望ましい。 In the present invention, it is desirable to form a coated surface using a trowel in the step (1). Specifically, it is desirable to use a trowel at least when spreading the water-based topcoat material, and it is more preferable to use a trowel when applying the water-based topcoat material to the surface to be coated and when spreading the water-based topcoat material. desirable.

本発明では、(2)工程において、水性上塗材の塗面に、水及び/又は親水性溶剤(以下単に「水等」ともいう)を供給し、押圧具を用いて当該塗面を均す。この(2)工程は、(1)工程で得られた塗面の一部ないし全体を対象に行うことができ、水等の供給は、少なくとも、押圧具によって均す領域を対象に行えばよい。 In the present invention, in the step (2), water and / or a hydrophilic solvent (hereinafter, also simply referred to as “water or the like”) is supplied to the coated surface of the aqueous topcoat material, and the coated surface is leveled using a pressing tool. .. This step (2) can be performed on a part or the whole of the coated surface obtained in the step (1), and the supply of water or the like may be performed on at least the area leveled by the pressing tool. ..

塗面に水等を供給するには、例えば、霧吹き等の手段を用いる方法、あるいは、押圧具(例えば、コテ、ヘラ、ローラー等)に水等を付ける方法、等を採用することができる。後者の場合は、塗面に水等を供給する作業と、塗面を均す作業を同時に行うことができる。 In order to supply water or the like to the coated surface, for example, a method using a means such as a sprayer, or a method of applying water or the like to a pressing tool (for example, a trowel, a spatula, a roller, etc.) can be adopted. In the latter case, the work of supplying water or the like to the coated surface and the operation of leveling the coated surface can be performed at the same time.

本発明では、このような(2)工程を行うことにより、自然な濃淡変化等の色彩効果を十分に付与することができ、美観性等をいっそう高めることができる。このような効果は、乾燥前の塗面において、着色顔料の滲み作用等がはたらき、異色の水性上塗材同士の境界が視覚的にぼかされた状態になりやすくなることで奏されるものと考えられる。 In the present invention, by performing the step (2) as described above, it is possible to sufficiently impart a color effect such as a natural change in shade, and it is possible to further enhance the aesthetic appearance and the like. Such an effect is exhibited by the fact that the bleeding action of the coloring pigment works on the coated surface before drying, and the boundary between the water-based topcoat materials of different colors tends to be visually blurred. Conceivable.

塗面に供給する水及び/又は親水性溶剤の種類は、使用する水性上塗材に応じて適宜選定すればよい。親水性溶剤としては、例えば、20℃における水への溶解度が10g/100gHO超(好ましくは20g/100gHO以上、より好ましくは∞)である、アルコール系溶剤、エーテル系溶剤、エステル系溶剤等から選ばれる1種以上が使用できる。(2)工程では、水、または、水と親水性溶剤の混合液を好ましく使用することができる。塗面に供給する水等の量は、塗面の乾燥性、美観性等を考慮して適宜設定すればよい。 The type of water and / or hydrophilic solvent to be supplied to the coated surface may be appropriately selected according to the aqueous topcoat material to be used. Examples of the hydrophilic solvent include an alcohol solvent, an ether solvent, and an ester solvent having a solubility in water at 20 ° C. of more than 10 g / 100 gH 2 O (preferably 20 g / 100 gH 2 O or more, more preferably ∞). One or more selected from solvents and the like can be used. In the step (2), water or a mixed solution of water and a hydrophilic solvent can be preferably used. The amount of water or the like supplied to the coated surface may be appropriately set in consideration of the dryness, aesthetics, etc. of the coated surface.

塗面に水等を供給するタイミングは、(1)工程の後、塗面が乾燥する前までの間であればよい。具体的には、(1)工程の終了後(水性上塗材を塗り広げた後)、30分以内(より好ましくは15分以内)に、塗面に水等を供給することが望ましい。 The timing of supplying water or the like to the coated surface may be after the step (1) and before the coated surface dries. Specifically, it is desirable to supply water or the like to the coated surface within 30 minutes (more preferably within 15 minutes) after the completion of the step (1) (after spreading the water-based topcoat material).

押圧具としては、例えば、コテ、ヘラ、ローラー等から選ばれる1種以上を使用することができる。押圧具を用いて塗面を均す際には、押圧具で塗面を軽く押える方法等を採用することができる。押圧具を用いて塗面を均す作業は、塗面の一部ないし全体を対象に行うことができる。塗面に残った水等は、適宜除去すればよい。 As the pressing tool, for example, one or more selected from a trowel, a spatula, a roller and the like can be used. When leveling the coated surface with the pressing tool, a method of lightly pressing the coated surface with the pressing tool or the like can be adopted. The work of leveling the coated surface using the pressing tool can be performed on a part or the whole of the coated surface. Water or the like remaining on the coated surface may be appropriately removed.

(3)工程では、上述の方法で得られた塗面を乾燥させる。乾燥温度は、好ましくは0℃以上40℃以下(常温)であり、必要に応じ加温することもできる。乾燥時間は、好ましくは2時間以上である。 In the step (3), the coated surface obtained by the above method is dried. The drying temperature is preferably 0 ° C. or higher and 40 ° C. or lower (normal temperature), and can be heated if necessary. The drying time is preferably 2 hours or more.

以上の方法により、本発明では、異なる色調が混在し、自然な質感を備えた美観性に優れた被膜面を容易に得ることができる。本発明により形成される被膜面の色調は、少なくとも2種の水性上塗材の色調に基づくものであるが、水性上塗材同士の部分的な混ざり合い、着色顔料の滲み等により、階調、ぼかし等の色彩的効果が生じ、自然な濃淡変化等を付与することができる。水性上塗材同士の境界付近では、被膜割れが十分に抑制され、シームレス状の被膜を形成することもできる。例えば、水性上塗材として白色ないし灰色のものを用いることにより、モルタル調、コンクリート調等の美観性を呈する被膜面を形成することができる。 By the above method, in the present invention, it is possible to easily obtain a coated surface having a natural texture and excellent aesthetics by mixing different color tones. The color tone of the coating surface formed by the present invention is based on the color tone of at least two kinds of water-based topcoat materials, but due to partial mixing of the water-based topcoat materials, bleeding of the coloring pigment, etc., gradation and blurring occur. It is possible to give a natural shade change or the like by producing a color effect such as. In the vicinity of the boundary between the water-based topcoat materials, cracking of the film is sufficiently suppressed, and a seamless film can be formed. For example, by using a white or gray material as the water-based topcoat material, it is possible to form a coated surface exhibiting aesthetic appearance such as mortar-like or concrete-like.

また本発明では、形成される被膜面を平坦化することができ、例えば、形成される被膜面の全体を平坦化することができ、被膜面が種々の凹凸模様を有する場合は、その一部を平坦化することもできる。このような水性上塗材被膜の乾燥膜厚は、好ましくは0.03~2mm、より好ましくは0.05~1mm、さらに好ましくは0.1~0.5mmである。 Further, in the present invention, the formed coated surface can be flattened, for example, the entire formed coated surface can be flattened, and if the coated surface has various uneven patterns, a part thereof can be flattened. Can also be flattened. The dry film thickness of such an aqueous topcoat material film is preferably 0.03 to 2 mm, more preferably 0.05 to 1 mm, and even more preferably 0.1 to 0.5 mm.

本発明において、上述の効果が奏される理由は、以下に限定されるものではないが、複数の水性上塗材を塗り付けて塗面を形成する際、疎水性溶剤等を含む水性上塗材の特性に基づいて、塗面に供給した水等の被膜内へのしみ込みが抑えられ、これにより、塗面上の水等を活用して、押圧具による均しを効率良く行うことができ、しかも、水等に起因する被膜割れを抑制することができるものと考えられる。さらに、骨材や体質顔料等の作用によって、形成被膜面では単色化が抑制され、自然な質感を有する複数の着色領域が混在して表出されると共に、水性上塗材同士の境界付近では、着色顔料の滲み作用等によって色変化が緩和され、境界が視覚的にぼかされた状態となる。本発明では、このような視覚的効果によって自然な濃淡変化等が表出され、被膜の平坦化効果や割れ抑制効果等も相俟って、美観性が高められるものと考えられる。 In the present invention, the reason why the above-mentioned effect is exhibited is not limited to the following, but when a plurality of water-based topcoat materials are applied to form a coated surface, the water-based topcoat material containing a hydrophobic solvent or the like is used. Based on the characteristics, the water supplied to the coated surface is suppressed from seeping into the coating film, which makes it possible to efficiently perform leveling with the pressing tool by utilizing the water or the like on the coated surface. Moreover, it is considered that the film cracking caused by water or the like can be suppressed. Furthermore, due to the action of aggregates and extender pigments, monochromaticization is suppressed on the formed coating surface, and a plurality of colored regions having a natural texture are mixed and expressed, and coloring is performed near the boundary between the water-based topcoat materials. The color change is alleviated by the bleeding action of the pigment, and the boundary is visually blurred. In the present invention, it is considered that such a visual effect expresses a natural shading change and the like, and the effect of flattening the film and the effect of suppressing cracking are combined to enhance the aesthetic appearance.

本発明では、上記工程の後、研磨工程、及び/または、クリヤー塗装工程等を行うことができる。 In the present invention, after the above steps, a polishing step and / or a clear coating step can be performed.

研磨処理は、被膜面の平滑性向上等の目的で行うことができる。研磨処理は、研磨布紙等を用いて公知の方法により行えばよい。研磨布紙の粒度は、所望の平滑度合に応じて適宜選択することができる。2種以上の研磨布紙を使用して処理を行うこともできる。また、研磨処理においては、必要に応じ水等で被膜表面を湿潤させながら研磨を行うこともできる。研磨によって発生した粉は、エアブローやウエス等で除去すればよい。 The polishing treatment can be performed for the purpose of improving the smoothness of the coated surface. The polishing treatment may be performed by a known method using a polishing cloth or the like. The particle size of the abrasive cloth can be appropriately selected according to the desired degree of smoothness. The treatment can also be performed using two or more types of abrasive cloth. Further, in the polishing treatment, polishing can be performed while moistening the surface of the coating film with water or the like, if necessary. The powder generated by polishing may be removed by an air blow or a waste cloth.

クリヤー塗装工程は、例えば表面保護、耐候性向上、耐汚染性向上、仕上り性向上等の目的で行うことができる。クリヤー塗装に供する仕上材としては、例えば、アクリル樹脂、ウレタン樹脂、エポキシ樹脂、アクリルシリコン樹脂、フッ素樹脂等を結合材とするクリヤー仕上材が挙げられる。クリヤー仕上材は、水系、溶剤系のいずれであってもよく、無色透明、着色透明のいずれであってもよく、また艶有り、艶消し(7分艶、5分艶、3分艶等を含む)のいずれであってもよい。 The clear coating step can be performed for the purpose of, for example, surface protection, improvement of weather resistance, improvement of stain resistance, improvement of finish, and the like. Examples of the finishing material to be used for clear coating include a clear finishing material having an acrylic resin, a urethane resin, an epoxy resin, an acrylic silicon resin, a fluororesin or the like as a binder. The clear finishing material may be either water-based or solvent-based, and may be colorless and transparent or colored and transparent, and may be glossy or matte (7-minute gloss, 5-minute gloss, 3-minute gloss, etc.). Including).

クリヤー仕上材の塗装方法としては、例えば、刷毛塗り、スプレー塗装、ローラー塗装等種々の方法を採用することができる。塗付け量は、好ましくは0.01~0.5kg/m、より好ましくは0.03~0.4kg/mである。このような塗付け量の範囲内で、複数回に分けて塗装することも可能である。 As a method for coating the clear finishing material, for example, various methods such as brush coating, spray coating, and roller coating can be adopted. The coating amount is preferably 0.01 to 0.5 kg / m 2 , more preferably 0.03 to 0.4 kg / m 2 . Within the range of such a coating amount, it is possible to apply the coating in a plurality of times.

以下に実施例を示し、本発明の特徴をより明確にするが、本発明はこの実施例に限定されない。 Examples are shown below to further clarify the features of the present invention, but the present invention is not limited to this example.

上塗材の製造には、以下の原料を用いた。
・骨材A:白色珪砂(平均粒子径150μm)
・骨材B:灰色珪砂(平均粒子径100μm)
・体質顔料A:重質炭酸カルシウム(平均粒子径15μm)
・体質顔料B:重質炭酸カルシウム(平均粒子径28μm)
・体質顔料C:タルク(平均粒子径8μm)
・水性樹脂A:アクリル樹脂エマルション(固形分50重量%、ガラス転移温度30℃)
・水性樹脂B:アルコキシシリル基含有アクリル樹脂エマルション(固形分50重量%、ガラス転移温度22℃)
・疎水性溶剤A: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(20℃における水への溶解度0.04g/100gHO)
・疎水性溶剤B:ジプロピレングリコールモノブチルエーテル(20℃における水への溶解度5g/100gHO)
・親水性溶剤A:エチレングリコールモノブチルエーテル(20℃における水への溶解度∞)
・親水性溶剤B:ジプロピレングリコールモノプロピルエーテル(20℃における水への溶解度19g/100gHO)
・着色顔料A:黒色顔料分散液(カーボンブラック(平均粒子径0.05μm)の20重量%分散液)
・着色顔料B:黄色顔料分散液(黄色酸化鉄(平均粒子径0.5μm)の50重量%分散液)
・着色顔料C:赤色顔料分散液(弁柄(平均粒子径0.2μm)の50重量%分散液)
・着色顔料D:白色顔料分散液(酸化チタン(平均粒子径0.3μm)の60重量%分散液)
・繊維:無機系繊維(平均繊維長0.1mm)
・凍結防止剤:エチレングリコール
・分散剤:ポリカルボン酸系分散剤
・増粘剤:ヒドロキシエチルセルロース3重量%水溶液
・消泡剤:シリコーン系消泡剤
The following raw materials were used for the production of the topcoat material.
-Aggregate A: White silica sand (average particle size 150 μm)
-Aggregate B: Gray silica sand (average particle size 100 μm)
-Constituent pigment A: Heavy calcium carbonate (average particle size 15 μm)
-Constituent pigment B: Heavy calcium carbonate (average particle size 28 μm)
-Constituent pigment C: talc (average particle size 8 μm)
Aqueous resin A: Acrylic resin emulsion (solid content 50% by weight, glass transition temperature 30 ° C)
Aqueous resin B: Acrylic resin emulsion containing an alkoxysilyl group (solid content 50% by weight, glass transition temperature 22 ° C.)
Hydrophobic solvent A: 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (solubility in water at 20 ° C. 0.04 g / 100 gH 2 O)
Hydrophobic solvent B: Dipropylene glycol monobutyl ether (solubility in water at 20 ° C. 5 g / 100 gH 2 O)
Hydrophilic solvent A: Ethylene glycol monobutyl ether (solubility in water at 20 ° C ∞)
Hydrophilic solvent B: Dipropylene glycol monopropyl ether (solubility in water at 20 ° C. 19 g / 100 gH 2 O)
-Coloring pigment A: Black pigment dispersion (20% by weight dispersion of carbon black (average particle diameter 0.05 μm))
-Coloring pigment B: Yellow pigment dispersion (50% by weight dispersion of yellow iron oxide (average particle diameter 0.5 μm))
-Coloring pigment C: Red pigment dispersion (50% by weight dispersion of red ocher (average particle diameter 0.2 μm))
-Coloring pigment D: White pigment dispersion (60% by weight dispersion of titanium oxide (average particle diameter 0.3 μm))
-Fiber: Inorganic fiber (average fiber length 0.1 mm)
-Anti-freezing agent: Ethylene glycol-Dispersant: Polycarboxylic acid-based dispersant-Thickening agent: Hydroxyethyl cellulose 3% by weight aqueous solution-Defoaming agent: Silicone-based defoaming agent

(実施例1)
・上塗材1の製造
骨材A100重量部に対し、体質顔料A150重量部、水性樹脂A32重量部(固形分換算16重量部)、疎水性溶剤A3重量部、着色顔料A0.03重量部、着色顔料B0.03重量部、着色顔料C0.01重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水10重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材1(淡灰色、粘度48Pa・s)を製造した。
(Example 1)
-Manufacture of topcoat material 1 150 parts by weight of extender pigment A, 32 parts by weight of aqueous resin A (16 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent, 0.03 parts by weight of coloring pigment, coloring with respect to 100 parts by weight of aggregate A 0.03 part by weight of pigment B, 0.01 part by weight of colored pigment C, 11 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 10 parts by weight of water, 1 part by weight of defoaming agent. , Was mixed and stirred by a conventional method to produce a topcoat material 1 (light gray, viscosity 48 Pa · s).

・上塗材2の製造
骨材A100重量部に対し、体質顔料A150重量部、水性樹脂A32重量部(固形分換算16重量部)、疎水性溶剤A3重量部、着色顔料A3重量部、着色顔料B3重量部、着色顔料C1重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水10重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材2(濃灰色、粘度47Pa・s)を製造した。
-Manufacture of topcoat material 2 150 parts by weight of extender pigment A, 32 parts by weight of aqueous resin A (16 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent, 3 parts by weight of colored pigment, B3 of colored pigment with respect to 100 parts by weight of aggregate A By weight, 1 part by weight of coloring pigment C, 6 parts by weight of coloring pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 10 parts by weight of water, and 1 part by weight of defoaming agent are mixed by a conventional method. -The topcoat material 2 (dark gray, viscosity 47 Pa · s) was produced by stirring.

以上より、上塗材1と上塗材2からなる上塗材セットを得た。上塗材1と上塗材2との色差は17であった。 From the above, a topcoat material set composed of the topcoat material 1 and the topcoat material 2 was obtained. The color difference between the topcoat material 1 and the topcoat material 2 was 17.

被塗面として、予めシーラー塗装を施したスレート板を用意した。この被塗面上に、灰色の下塗材1{アクリル樹脂エマルション(樹脂比重1.0)、酸化チタン(平均粒子径0.3μm、比重4.2)、カーボンブラック(平均粒子径0.05μm、比重1.8)、タルク(平均粒子径8μm、比重2.7)、及び重質炭酸カルシウム(平均粒子径5μm、比重2.6)を主成分とする水性下塗材。顔料体積濃度50%、鏡面光沢度2(測定角度60度)}を塗付け量0.2kg/mにてウールローラーで塗装し、3時間乾燥させ、下塗被膜を形成した。次いで、この下塗被膜上に、上塗材1と上塗材2が隣接しつつ一部重なり合った状態で混在するように、コテで塗着させ、直ちにこれらをコテで塗り広げて均すことにより塗面を形成した(上塗材1の塗付け量0.3kg/m、上塗材2の塗付け量0.3kg/m)。次いで、塗面の表面に、霧吹きで水を吹き付け、再度コテで塗面を均し、その後24時間乾燥させた。以上の方法により、淡灰色と濃灰色の領域が混在し、さらにこれらの中間的な色調による濃淡変化が視認されるモルタル調の平坦な被膜面(乾燥膜厚0.3mm)が形成された。被膜面に割れ発生は認められず、シームレス状の外観であった。 A slate plate coated with a sealer was prepared as the surface to be coated. On this coated surface, gray undercoat material 1 {acrylic resin emulsion (resin specific gravity 1.0), titanium oxide (average particle diameter 0.3 μm, specific gravity 4.2), carbon black (average particle diameter 0.05 μm, A water-based undercoat material whose main components are specific gravity 1.8), talc (average particle diameter 8 μm, specific gravity 2.7), and heavy calcium carbonate (average particle diameter 5 μm, specific gravity 2.6). A pigment volume concentration of 50% and a mirror glossiness of 2 (measurement angle of 60 degrees)} were applied with a wool roller at a coating amount of 0.2 kg / m 2 and dried for 3 hours to form an undercoat film. Next, the topcoat material 1 and the topcoat material 2 are coated on the undercoat film with a trowel so that they are adjacent to each other and partially overlapped with each other, and immediately spread and leveled with a trowel to smooth the coated surface. (Applying amount of topcoat material 1 0.3 kg / m 2 ; coating amount of top coat material 2 0.3 kg / m 2 ). Then, the surface of the coated surface was sprayed with water, the coated surface was leveled again with a trowel, and then dried for 24 hours. By the above method, a mortar-like flat film surface (dry film thickness 0.3 mm) was formed in which light gray and dark gray regions were mixed and a change in light and shade due to these intermediate color tones was visually recognized. No cracks were observed on the coated surface, and the appearance was seamless.

(実施例2)
・上塗材3の製造
骨材A100重量部に対し、体質顔料A120重量部、水性樹脂A28重量部(固形分換算14重量部)、疎水性溶剤A3重量部、着色顔料B0.2重量部、着色顔料C0.3重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水10重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材3(淡橙色、粘度47Pa・s)を製造した。
(Example 2)
-Manufacture of topcoat material 3 With respect to 100 parts by weight of aggregate A, 120 parts by weight of extender pigment A, 28 parts by weight of aqueous resin A (14 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent A, 0.2 parts by weight of coloring pigment B, coloring. 0.3 parts by weight of pigment C, 11 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 10 parts by weight of water, 1 part by weight of defoaming agent are mixed and stirred by a conventional method. The topcoat material 3 (light orange, viscosity 47 Pa · s) was produced.

・上塗材4の製造
骨材A100重量部に対し、体質顔料A120重量部、水性樹脂A28重量部(固形分換算14重量部)、疎水性溶剤A3重量部、着色顔料A0.2重量部、着色顔料B6重量部、着色顔料C10重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水10重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材4(濃橙色、粘度46Pa・s)を製造した。
-Manufacture of topcoat material 4 With respect to 100 parts by weight of aggregate A, 120 parts by weight of extender pigment A, 28 parts by weight of aqueous resin A (14 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent A, 0.2 parts by weight of coloring pigment, coloring. 6 parts by weight of pigment B, 10 parts by weight of colored pigment C, 6 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 10 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 4 (dark orange, viscosity 46 Pa · s) was produced by mixing and stirring.

以上より、上塗材3と上塗材4からなる上塗材セットを得た。上塗材3と上塗材4との色差は22であった。 From the above, a topcoat material set composed of the topcoat material 3 and the topcoat material 4 was obtained. The color difference between the topcoat material 3 and the topcoat material 4 was 22.

被塗面として、予めシーラー塗装を施したスレート板を用意した。この被塗面上に、橙色の下塗材2{アクリル樹脂エマルション(樹脂比重1.0)、カーボンブラック(平均粒子径0.05μm、比重1.8)、黄色酸化鉄(平均粒子径0.5μm、比重4.0)、弁柄(平均粒子径0.2μm、比重5.0)、酸化チタン(平均粒子径0.3μm、比重4.2)、タルク(平均粒子径8μm、比重2.7)、及びクレー(平均粒子径4μm、比重2.6)を主成分とする水性下塗材。顔料体積濃度58%、鏡面光沢度1.5(測定角度60度)}を塗付け量0.2kg/mにてウールローラーで塗装し、3時間乾燥させ、下塗被膜を形成した。次いで、この下塗被膜上に、上塗材3と上塗材4が隣接しつつ一部重なり合った状態で混在するように、コテで塗着させ、直ちにこれらをコテで塗り広げて均すことにより塗面を形成した(上塗材3の塗付け量0.3kg/m、上塗材4の塗付け量0.3kg/m)。次いで、塗面の表面に、霧吹きで水を吹き付け、再度コテで塗面を均し、その後24時間乾燥させた。以上の方法により、淡橙色と濃橙色の領域が混在し、さらにこれらの中間的な色調による濃淡変化が視認される橙色系の平坦な被膜面(乾燥膜厚0.3mm)が形成された。被膜面に割れ発生は認められず、シームレス状の外観であった。 A slate plate coated with a sealer was prepared as the surface to be coated. On this surface to be coated, orange undercoat material 2 {acrylic resin emulsion (resin specific density 1.0), carbon black (average particle diameter 0.05 μm, specific density 1.8), yellow iron oxide (average particle diameter 0.5 μm) , Specific gravity 4.0), valve handle (average particle diameter 0.2 μm, specific gravity 5.0), titanium oxide (average particle diameter 0.3 μm, specific gravity 4.2), talc (average particle diameter 8 μm, specific gravity 2.7) ) And clay (average particle diameter 4 μm, specific density 2.6) as the main components of the water-based undercoat material. A pigment volume concentration of 58% and a mirror glossiness of 1.5 (measurement angle of 60 degrees)} were applied with a wool roller at a coating amount of 0.2 kg / m 2 and dried for 3 hours to form an undercoat film. Next, the topcoat material 3 and the topcoat material 4 are coated on the undercoat film with a trowel so that they are adjacent to each other and partially overlapped with each other, and immediately spread and leveled with a trowel to smooth the coated surface. (Applying amount of topcoat material 3 0.3 kg / m 2 ; coating amount of top coat material 4 0.3 kg / m 2 ). Then, the surface of the coated surface was sprayed with water by spraying, the coated surface was leveled again with a trowel, and then dried for 24 hours. By the above method, a flat orange-colored film surface (dry film thickness 0.3 mm) was formed in which light-orange and dark-orange regions were mixed and a change in shade due to an intermediate color tone was visually recognized. No cracks were observed on the coated surface, and the appearance was seamless.

(実施例3)
・上塗材5の製造
骨材A100重量部に対し、体質顔料A210重量部、水性樹脂A35重量部(固形分換算17.5重量部)、疎水性溶剤A3重量部、着色顔料A0.03重量部、着色顔料B0.03重量部、着色顔料C0.01重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤26重量部、水14重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材5(淡灰色、粘度52Pa・s)を製造した。
(Example 3)
-Manufacture of topcoat material 5 With respect to 100 parts by weight of aggregate A, 210 parts by weight of extender pigment A, 35 parts by weight of aqueous resin A (17.5 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent A, 0.03 parts by weight of colored pigment. , 0.03 part by weight of coloring pigment B, 0.01 part by weight of coloring pigment C, 11 parts by weight of coloring pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 26 parts by weight of thickener, 14 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 5 (light gray, viscosity 52 Pa · s) was produced by mixing and stirring parts by weight by a conventional method.

・上塗材6の製造
骨材A100重量部に対し、体質顔料A210重量部、水性樹脂A35重量部(固形分換算17.5重量部)、疎水性溶剤A3重量部、着色顔料A3重量部、着色顔料B3重量部、着色顔料C1重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤26重量部、水14重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材6(濃灰色、粘度50Pa・s)を製造した。
-Manufacture of topcoat material 6 With respect to 100 parts by weight of aggregate A, 210 parts by weight of extender pigment A, 35 parts by weight of aqueous resin A (17.5 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent, 3 parts by weight of coloring pigment, coloring. 3 parts by weight of pigment B, 1 part by weight of colored pigment C, 6 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 26 parts by weight of thickener, 14 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 6 (dark gray, viscosity 50 Pa · s) was produced by mixing and stirring.

以上より、上塗材5と上塗材6からなる上塗材セットを得た。上塗材5と上塗材6との色差は16であった。 From the above, a topcoat material set composed of the topcoat material 5 and the topcoat material 6 was obtained. The color difference between the topcoat material 5 and the topcoat material 6 was 16.

上塗材1及び2に替えて上塗材5及び6を用い、実施例1と同様の方法で被膜面を形成したところ、淡灰色と濃灰色の領域が混在し、さらにこれらの中間的な色調による濃淡変化が視認されるモルタル調の平坦な被膜面(乾燥膜厚0.3mm)が得られた。被膜面に割れ発生は認められず、シームレス状の外観であった。 When the coating surface was formed by the same method as in Example 1 using the topcoating materials 5 and 6 instead of the topcoating materials 1 and 2, light gray and dark gray regions were mixed, and the color tone was intermediate between them. A mortar-like flat film surface (dry film thickness 0.3 mm) in which the change in shade was visually recognized was obtained. No cracks were observed on the coated surface, and the appearance was seamless.

(実施例4)
・上塗材7の製造
骨材A100重量部に対し、体質顔料A100重量部、水性樹脂A20重量部(固形分換算10重量部)、疎水性溶剤A3重量部、着色顔料A0.03重量部、着色顔料B0.03重量部、着色顔料C0.01重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水6重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材7(淡灰色、粘度46Pa・s)を製造した。
(Example 4)
-Manufacture of topcoat material 7 With respect to 100 parts by weight of aggregate A, 100 parts by weight of extender pigment A, 20 parts by weight of aqueous resin A (10 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent A, 0.03 parts by weight of coloring pigment, coloring. 0.03 part by weight of pigment B, 0.01 part by weight of colored pigment C, 11 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 6 parts by weight of water, 1 part by weight of defoaming agent. , Was mixed and stirred by a conventional method to produce a topcoat material 7 (light gray, viscosity 46 Pa · s).

・上塗材8の製造
骨材A100重量部に対し、体質顔料A100重量部、水性樹脂A20重量部(固形分換算10重量部)、疎水性溶剤A3重量部、着色顔料A3重量部、着色顔料B3重量部、着色顔料C1重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水6重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材8(濃灰色、粘度46Pa・s)を製造した。
-Manufacture of topcoat material 8 With respect to 100 parts by weight of aggregate A, 100 parts by weight of extender pigment A, 20 parts by weight of aqueous resin A (10 parts by weight in terms of solid content), 3 parts by weight of hydrophobic solvent A, 3 parts by weight of colored pigment, and B3 of colored pigment. By weight, 1 part by weight of coloring pigment C, 6 parts by weight of coloring pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 6 parts by weight of water, and 1 part by weight of defoaming agent are mixed by a conventional method. -The topcoat material 8 (dark gray, viscosity 46 Pa · s) was produced by stirring.

以上より、上塗材7と上塗材8からなる上塗材セットを得た。上塗材7と上塗材8との色差は17であった。 From the above, a topcoat material set composed of the topcoat material 7 and the topcoat material 8 was obtained. The color difference between the topcoat material 7 and the topcoat material 8 was 17.

上塗材1及び2に替えて上塗材7及び8を用い、実施例1と同様の方法で被膜面を形成したところ、淡灰色と濃灰色の領域が混在し、さらにこれらの中間的な色調による濃淡変化が視認されるモルタル調の平坦な被膜面(乾燥膜厚0.3mm)が得られた。被膜面に割れ発生は認められず、シームレス状の外観であった。 When the coating surface was formed by the same method as in Example 1 using the topcoating materials 7 and 8 instead of the topcoating materials 1 and 2, light gray and dark gray regions were mixed, and the color tone was intermediate between them. A mortar-like flat film surface (dry film thickness 0.3 mm) in which the change in shade was visually recognized was obtained. No cracks were observed on the coated surface, and the appearance was seamless.

(実施例5)
・上塗材9の製造
骨材A100重量部に対し、体質顔料A100重量部、体質顔料B70重量部、水性樹脂B38重量部(固形分換算19重量部)、疎水性溶剤B4重量部、着色顔料A0.03重量部、着色顔料B0.03重量部、着色顔料C0.01重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水6重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材9(淡灰色、粘度53Pa・s)を製造した。
(Example 5)
-Manufacture of topcoat material 9 With respect to 100 parts by weight of aggregate A, 100 parts by weight of extender pigment A, 70 parts by weight of extender pigment B, 38 parts by weight of aqueous resin B (19 parts by weight in terms of solid content), 4 parts by weight of hydrophobic solvent, and 0 parts by weight of coloring pigment. .03 parts by weight, coloring pigment B 0.03 parts by weight, coloring pigment C 0.01 parts by weight, coloring pigment D 11 parts by weight, fiber 3 parts by weight, dispersant 1 part by weight, thickener 30 parts by weight, water 6 parts by weight, The topcoat material 9 (light gray, viscosity 53 Pa · s) was produced by mixing and stirring 1 part by weight of the defoaming agent by a conventional method.

・上塗材10の製造
骨材A100重量部に対し、体質顔料A100重量部、体質顔料B70重量部、水性樹脂B38重量部(固形分換算19重量部)、疎水性溶剤B4重量部、着色顔料A3重量部、着色顔料B3重量部、着色顔料C1重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤30重量部、水6重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材10(濃灰色、粘度52Pa・s)を製造した。
-Manufacture of topcoat material 10 With respect to 100 parts by weight of aggregate A, 100 parts by weight of extender pigment A, 70 parts by weight of extender pigment B, 38 parts by weight of aqueous resin B (19 parts by weight in terms of solid content), 4 parts by weight of hydrophobic solvent, and 3 parts by weight of coloring pigment A3. By weight, 3 parts by weight of coloring pigment B, 1 part by weight of coloring pigment C, 6 parts by weight of coloring pigment, 3 parts by weight of fiber, 1 part by weight of dispersant, 30 parts by weight of thickener, 6 parts by weight of water, 1 part by weight of defoaming agent , Was mixed and stirred by a conventional method to produce a topcoat material 10 (dark gray, viscosity 52 Pa · s).

以上より、上塗材9と上塗材10からなる被覆材セットを得た。上塗材9と上塗材10との色差は18であった。 From the above, a dressing set composed of the topcoat material 9 and the topcoat material 10 was obtained. The color difference between the topcoat material 9 and the topcoat material 10 was 18.

上塗材1及び2に替えて上塗材9及び10を用い、実施例1と同様の方法で被膜面を形成したところ、淡灰色と濃灰色の領域が混在し、さらにこれらの中間的な色調による濃淡変化が視認されるモルタル調の平坦な被膜面(乾燥膜厚0.3mm)が得られた。被膜面に割れ発生は認められず、シームレス状の外観であった。 When the coating surface was formed by the same method as in Example 1 using the topcoating materials 9 and 10 instead of the topcoating materials 1 and 2, light gray and dark gray regions were mixed, and the color tone was intermediate between them. A mortar-like flat film surface (dry film thickness 0.3 mm) in which the change in shade was visually recognized was obtained. No cracks were observed on the coated surface, and the appearance was seamless.

(実施例6)
・上塗材11の製造
骨材B100重量部に対し、体質顔料B110重量部、体質顔料C20重量部、水性樹脂A16重量部(固形分換算8重量部)、疎水性溶剤B2重量部、着色顔料B0.1重量部、着色顔料C0.03重量部、着色顔料D38重量部、繊維3重量部、凍結防止剤0.5重量部、分散剤1重量部、増粘剤38重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材11(淡灰色、粘度52Pa・s)を製造した。
(Example 6)
-Manufacture of topcoat material 11 With respect to 100 parts by weight of aggregate B, 110 parts by weight of extender pigment B, 20 parts by weight of extender pigment C, 16 parts by weight of aqueous resin A (8 parts by weight in terms of solid content), 2 parts by weight of hydrophobic solvent, and 0 parts by weight of coloring pigment. .1 part by weight, color pigment C 0.03 part by weight, color pigment D 38 part by weight, fiber 3 part by weight, antifreeze agent 0.5 part by weight, dispersant 1 part by weight, thickener 38 part by weight, defoaming agent 1 The topcoat material 11 (light gray, viscosity 52 Pa · s) was produced by mixing and stirring parts by weight by a conventional method.

・上塗材12の製造
骨材B100重量部に対し、体質顔料B110重量部、体質顔料C20重量部、水性樹脂A16重量部(固形分換算8重量部)、疎水性溶剤B2重量部、着色顔料D2重量部、繊維3重量部、凍結防止剤0.5重量部、分散剤1重量部、増粘剤22重量部、水8重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材12(濃灰色、粘度50Pa・s)を製造した。
-Manufacture of topcoat material 12 With respect to 100 parts by weight of aggregate B, 110 parts by weight of extender pigment B, 20 parts by weight of extender pigment C, 16 parts by weight of aqueous resin A (8 parts by weight in terms of solid content), 2 parts by weight of hydrophobic solvent, and D2 of colored pigment. By weight, 3 parts by weight of fiber, 0.5 part by weight of antifreeze agent, 1 part by weight of dispersant, 22 parts by weight of thickener, 8 parts by weight of water, and 1 part by weight of defoaming agent are mixed and stirred by a conventional method. As a result, the topcoat material 12 (dark gray, viscosity 50 Pa · s) was produced.

以上より、上塗材11と上塗材12からなる被覆材セットを得た。上塗材11と上塗材12との色差は25であった。 From the above, a dressing set composed of the topcoat material 11 and the topcoat material 12 was obtained. The color difference between the topcoat material 11 and the topcoat material 12 was 25.

上塗材1及び2に替えて上塗材11及び12を用い、実施例1と同様の方法で被膜面を形成したところ、淡灰色と濃灰色の領域が混在し、さらにこれらの中間的な色調による濃淡変化が視認されるモルタル調の平坦な被膜面(乾燥膜厚0.3mm)が得られた。被膜面に割れ発生は認められず、シームレス状の外観であった。 When the coating surfaces were formed by the same method as in Example 1 using the topcoat materials 11 and 12 instead of the topcoat materials 1 and 2, light gray and dark gray regions were mixed, and the color tone was intermediate between them. A mortar-like flat film surface (dry film thickness 0.3 mm) in which the change in shade was visually recognized was obtained. No cracks were observed on the coated surface, and the appearance was seamless.

(比較例1)
・上塗材13の製造
骨材A100重量部に対し、体質顔料A210重量部、水性樹脂A35重量部(固形分換算17.5重量部)、親水性溶剤A3重量部、着色顔料A0.03重量部、着色顔料B0.03重量部、着色顔料C0.01重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤26重量部、水14重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材13(淡灰色、粘度50Pa・s)を製造した。
(Comparative Example 1)
-Manufacture of topcoat material 13 With respect to 100 parts by weight of aggregate A, 210 parts by weight of extender pigment A, 35 parts by weight of aqueous resin A (17.5 parts by weight in terms of solid content), 3 parts by weight of hydrophilic solvent A, 0.03 parts by weight of colored pigment. , 0.03 part by weight of coloring pigment B, 0.01 part by weight of coloring pigment C, 11 parts by weight of coloring pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 26 parts by weight of thickener, 14 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 13 (light gray, viscosity 50 Pa · s) was produced by mixing and stirring parts by weight by a conventional method.

・上塗材14の製造
骨材A100重量部に対し、体質顔料A210重量部、水性樹脂A35重量部(固形分換算17.5重量部)、親水性溶剤A3重量部、着色顔料A3重量部、着色顔料B3重量部、着色顔料C1重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤26重量部、水14重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材14(濃灰色、粘度49Pa・s)を製造した。
-Manufacture of topcoat material 14 With respect to 100 parts by weight of aggregate A, 210 parts by weight of extender pigment A, 35 parts by weight of aqueous resin A (17.5 parts by weight in terms of solid content), 3 parts by weight of hydrophilic solvent, 3 parts by weight of coloring pigment, coloring. 3 parts by weight of pigment B, 1 part by weight of colored pigment C, 6 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 26 parts by weight of thickener, 14 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 14 (dark gray, viscosity 49 Pa · s) was produced by mixing and stirring with the above.

以上より、上塗材13と上塗材14からなる上塗材セットを得た。上塗材13と上塗材14との色差は16であった。 From the above, a topcoat material set composed of the topcoat material 13 and the topcoat material 14 was obtained. The color difference between the topcoat material 13 and the topcoat material 14 was 16.

上塗材1及び2に替えて上塗材13及び14を用い、実施例1と同様の方法で被膜面を形成したところ、被膜面に割れ発生が認められた。 When the coated surfaces were formed by the same method as in Example 1 using the topcoat materials 13 and 14 instead of the topcoat materials 1 and 2, cracks were observed on the coated surface.

(比較例2)
・上塗材15の製造
骨材A100重量部に対し、体質顔料A210重量部、水性樹脂A35重量部(固形分換算17.5重量部)、親水性溶剤B3重量部、着色顔料A0.03重量部、着色顔料B0.03重量部、着色顔料C0.01重量部、着色顔料D11重量部、繊維3重量部、分散剤1重量部、増粘剤26重量部、水14重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材15(淡灰色、粘度51Pa・s)を製造した。
(Comparative Example 2)
-Manufacture of topcoat material 15 parts by weight of extender pigment A, 35 parts by weight of aqueous resin A (17.5 parts by weight in terms of solid content), 3 parts by weight of hydrophilic solvent B, 0.03 parts by weight of colored pigment A with respect to 100 parts by weight of aggregate A , 0.03 part by weight of coloring pigment B, 0.01 part by weight of coloring pigment C, 11 parts by weight of coloring pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 26 parts by weight of thickener, 14 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 15 (light gray, viscosity 51 Pa · s) was produced by mixing and stirring parts by weight by a conventional method.

・上塗材16の製造
骨材A100重量部に対し、体質顔料A210重量部、水性樹脂A35重量部(固形分換算17.5重量部)、親水性溶剤B3重量部、着色顔料A3重量部、着色顔料B3重量部、着色顔料C1重量部、着色顔料D6重量部、繊維3重量部、分散剤1重量部、増粘剤26重量部、水14重量部、消泡剤1重量部、を常法により混合・攪拌することによって上塗材16(濃灰色、粘度50Pa・s)を製造した。
-Manufacture of topcoat material 16 With respect to 100 parts by weight of aggregate A, 210 parts by weight of extender pigment A, 35 parts by weight of aqueous resin A (17.5 parts by weight in terms of solid content), 3 parts by weight of hydrophilic solvent B, 3 parts by weight of coloring pigment, coloring. 3 parts by weight of pigment B, 1 part by weight of colored pigment C, 6 parts by weight of colored pigment D, 3 parts by weight of fiber, 1 part by weight of dispersant, 26 parts by weight of thickener, 14 parts by weight of water, 1 part by weight of defoaming agent. The topcoat material 16 (dark gray, viscosity 50 Pa · s) was produced by mixing and stirring.

以上より、上塗材15と上塗材16からなる上塗材セットを得た。上塗材15と上塗材16との色差は16であった。 From the above, a topcoat material set composed of the topcoat material 15 and the topcoat material 16 was obtained. The color difference between the topcoat material 15 and the topcoat material 16 was 16.

上塗材1及び2に替えて上塗材15及び16を用い、実施例1と同様の方法で被膜面を形成したところ、被膜面に割れ発生が認められた。
When the coated surfaces were formed by the same method as in Example 1 using the topcoat materials 15 and 16 instead of the topcoat materials 1 and 2, cracks were observed on the coated surface.

Claims (4)

異なる色調が混在する被膜面を形成する被膜形成方法であって、
被塗面に対し、
(1)少なくとも2種の水性上塗材を塗付して塗面を形成する工程、
(2)当該塗面に水及び/又は親水性溶剤を供給し、押圧具を用いて当該塗面を均す工程、
(3)当該塗面を乾燥させる工程、
を行うものであり、
上記水性上塗材は、それぞれ、骨材、体質顔料、水性樹脂、及び疎水性溶剤を含み、
上記水性上塗材のうち、少なくとも1種は、さらに着色顔料を含むものであることを特徴とする被膜形成方法。
It is a film forming method for forming a film surface in which different color tones are mixed.
For the surface to be coated
(1) A step of applying at least two kinds of water-based topcoat materials to form a coated surface.
(2) A step of supplying water and / or a hydrophilic solvent to the coated surface and leveling the coated surface using a pressing tool.
(3) The process of drying the coated surface,
Is to do
The water-based topcoat material contains an aggregate, an extender pigment, a water-based resin, and a hydrophobic solvent, respectively.
A method for forming a film, wherein at least one of the above-mentioned water-based topcoat materials further contains a coloring pigment.
上記水性上塗材は、それぞれ、骨材100重量部に対し、体質顔料20~500重量部、水性樹脂3~30重量部、及び疎水性溶剤0.1~50重量部を含み、
上記水性上塗材のうち、少なくとも1種は、さらに着色顔料1~100重量部を含むものであることを特徴とする請求項1記載の被膜形成方法。
The water-based topcoat material contains 20 to 500 parts by weight of the extender pigment, 3 to 30 parts by weight of the water-based resin, and 0.1 to 50 parts by weight of the hydrophobic solvent with respect to 100 parts by weight of the aggregate.
The film forming method according to claim 1, wherein at least one of the water-based topcoat materials further contains 1 to 100 parts by weight of a coloring pigment.
上記(1)工程において、コテを用いて塗面を形成することを特徴とする請求項1または2に記載の被膜形成方法。 The film forming method according to claim 1 or 2, wherein a coated surface is formed by using a trowel in the step (1). 上記(2)工程において、コテを用いて塗面を均すことを特徴とする請求項1~3のいずれかに記載の被膜形成方法。
The film forming method according to any one of claims 1 to 3, wherein in the step (2), the coated surface is leveled using a trowel.
JP2021208507A 2020-12-23 2021-12-22 Film formation method Pending JP2022100294A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020213540 2020-12-23
JP2020213540 2020-12-23

Publications (1)

Publication Number Publication Date
JP2022100294A true JP2022100294A (en) 2022-07-05

Family

ID=82269416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021208507A Pending JP2022100294A (en) 2020-12-23 2021-12-22 Film formation method

Country Status (1)

Country Link
JP (1) JP2022100294A (en)

Similar Documents

Publication Publication Date Title
JP7428749B2 (en) Method of forming decorative coating surface
JP5325735B2 (en) Coating method
JP5166336B2 (en) Coating method
JP2023112021A (en) Method for forming decorative coating surface
JP5215021B2 (en) Painting method
JP2022100294A (en) Film formation method
JP6456755B2 (en) Film formation method
JP2022100295A (en) Film formation method
JP2022096648A (en) Coating formation method and coating material set
JP2022097160A (en) Coating formation method
JP4877719B2 (en) Pattern formation method
JP4731824B2 (en) Base adjustment coating material
JP5215023B2 (en) Painting method
JP7064959B2 (en) How to form a decorative coating surface
JP2020121237A (en) Film formation method
JP2022131722A (en) Coating laminate and method for forming the same
JP4895494B2 (en) Pattern surface formation method
JP7091145B2 (en) How to form a decorative coating surface
JP7161310B2 (en) Method for forming decorative film surface
JP2022131723A (en) Coating material
JP7128325B2 (en) Coating method
JP6839590B2 (en) Film formation method
JP2021053634A (en) Coat forming method, set of coating materials
JP2022010748A (en) Formation method of decorative coating and decorative coating
JPH0665531A (en) Method of coating with stone-like coloring and finishing