JP2003245598A - Method for coating metal material, coated article, distribution board and control panel - Google Patents
Method for coating metal material, coated article, distribution board and control panelInfo
- Publication number
- JP2003245598A JP2003245598A JP2002045599A JP2002045599A JP2003245598A JP 2003245598 A JP2003245598 A JP 2003245598A JP 2002045599 A JP2002045599 A JP 2002045599A JP 2002045599 A JP2002045599 A JP 2002045599A JP 2003245598 A JP2003245598 A JP 2003245598A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- metal material
- water
- epoxy resin
- resin
- 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
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金属材の塗装方法
及び塗装物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal material coating method and a coated article.
【０００２】[0002]
【従来の技術】従来の金属製被塗物の塗装方法は、特願
平８−２９４６６２号公報にも記載されているように、
前処理実施後にエポキシ樹脂系カチオン電着塗料又は、
有機溶剤型エポキシ樹脂系やメラミン樹脂系下塗り塗料
で塗膜を形成後、有機溶剤型メラミン樹脂系やアクリル
樹脂系上塗り塗料で塗膜を形成していた。2. Description of the Related Art A conventional method for coating an article to be coated with metal is disclosed in Japanese Patent Application No. 8-294662.
Epoxy resin-based cationic electrodeposition coating after pretreatment, or
After forming a coating film with an organic solvent-based epoxy resin-based or melamine resin-based undercoating paint, a coating film was formed with an organic solvent-based melamine resin-based or acrylic resin-based topcoating paint.
【０００３】[0003]
【発明が解決しようとする課題】エポキシ樹脂系カチオ
ン電着塗料又は、有機溶剤型エポキシ樹脂系やメラミン
樹脂系下塗り塗料で塗装後、有機溶剤型メラミン樹脂系
やアクリル樹脂系上塗り塗料で塗装を実施すると、消防
法、労働安全法等の法規制を受けることになり、前処理
〜下塗り〜上塗りの自動塗装ラインで塗装を行なう場
合、ライン全体の設置場所が対象となる。金属被塗装物
について組立て後の塗装は熱硬化型塗装ができないの
で、耐候性の優れた熱硬化型アクリル樹脂系塗膜上に常
温乾燥型塗料による塗装を施す。この場合、熱硬化型メ
ラミン樹脂系塗膜上の常温乾燥型塗料による塗装と同じ
方法で塗装を実施すると付着を生じるため、物理的に研
磨を行なわなければならなかった。また、有機溶剤型メ
ラミン樹脂系塗料とアクリル樹脂系塗料の熱硬化温度条
件が異なっており、一定条件で乾燥ができなかった。さ
らに、一般的な水性上塗り塗料で塗装を実施しても、耐
候性を有するものは温度が高く、一定条件で乾燥ができ
なかった。本発明は、消防法、労働安全法等の法規制を
受けず、優れた塗膜性能を有する塗装方法及びその塗装
方法で塗装された塗装物を提供することを目的とする。[Problems to be Solved by the Invention] After coating with an epoxy resin-based cationic electrodeposition paint or an organic solvent-based epoxy resin-based or melamine resin-based undercoating paint, an organic solvent-based melamine resin-based or acrylic resin-based topcoating paint is applied. Then, it becomes subject to legal regulations such as the Fire Service Law and the Industrial Safety Law, and when coating is performed in an automatic coating line of pretreatment-primer coating-top coating, the installation location of the entire line is targeted. Since the thermosetting coating cannot be applied to the metal coated object after assembly, the room temperature drying type coating is applied on the thermosetting acrylic resin type coating film with excellent weather resistance. In this case, if the coating is performed by the same method as the coating of the thermosetting melamine resin-based coating film with the room-temperature-drying type coating, adhesion occurs, so that physical polishing must be performed. In addition, the organic solvent-based melamine resin-based paint and the acrylic resin-based paint were different in thermosetting temperature conditions, and could not be dried under certain conditions. Further, even if the coating was carried out with a general water-based top coating, those having weather resistance were high in temperature and could not be dried under certain conditions. An object of the present invention is to provide a coating method having excellent coating film performance without being subject to laws and regulations such as the Fire Service Law and the Labor Safety Law, and a coated article coated by the coating method.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に本発明においては、金属材に、エポキシ樹脂系カチオ
ン電着塗料を塗装し、エポキシ樹脂系カチオン電着塗料
を加熱硬化させ、加熱硬化されたエポキシ樹脂系カチオ
ン電着塗料の塗面にアクリル変性アルキド樹脂、水溶性
メラミン樹脂及びエポキシ樹脂を含有する水性上塗り塗
料を塗装し、水性上塗り塗料を加熱硬化させて金属材の
塗装する。アクリル変性アルキド樹脂、水溶性メラミン
樹脂及びエポキシ樹脂を含有する水性塗料で上塗り塗装
を行なうので、消防法、労働安全法等の法規制を受けず
に塗装することができる。To achieve the above object, in the present invention, a metal material is coated with an epoxy resin-based cationic electrodeposition coating, and the epoxy resin-based cationic electrodeposition coating is heat-cured and then heat-cured. A water-based topcoat containing an acrylic-modified alkyd resin, a water-soluble melamine resin and an epoxy resin is coated on the coated surface of the thus-prepared epoxy resin-based cationic electrodeposition coating, and the water-based topcoat is heat-cured to coat a metal material. Since the overcoating is performed with an aqueous paint containing an acrylic-modified alkyd resin, a water-soluble melamine resin and an epoxy resin, it can be applied without being subject to legal regulations such as the Fire Service Law and the Labor Safety Law.
【０００５】[0005]
【発明の実施の形態】以下本発明の実施形態について説
明する。
（実施形態１）図1は、本発明の実施形態１における金
属材への塗装系を示す断面図である。金属材料１に下塗
り塗料（Ａ）の電着塗膜２を形成し、その塗面に上塗り
塗料（Ｂ）の上塗り塗膜３を形成する。下塗り塗料
（Ａ）として、非常に優れた防食性能（特にエッジ部や
合わせ目部）を得るためにエポキシ樹脂系カチオン電着
塗料（日本ペイント製、パワートップＵ−６００ＴＦ
用）を使用した。上塗り塗料（Ｂ）は、アクリル変性ア
ルキド樹脂ワニス、水溶性メラミン樹脂ワニス、水性エ
ポキシ樹脂ワニス、着色顔料、添加剤及び希釈剤より構
成された上塗り水性塗料（関西ペイント社製、商品名、
アスカベーク（Ｔ）５Ｙ７／１ グロス４０）であり、
消防法、労働安全法等の規制を受けない塗料である。上
塗り塗料（Ｂ）の成分は表１に示す。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. (Embodiment 1) FIG. 1 is a sectional view showing a coating system for a metal material according to Embodiment 1 of the present invention. An electrodeposition coating film 2 of an undercoat paint (A) is formed on a metal material 1, and an overcoat paint film 3 of an overcoat paint (B) is formed on the coated surface. As an undercoat paint (A), an epoxy resin-based cationic electrodeposition paint (manufactured by Nippon Paint Co., Ltd., Power Top U-600TF) is used in order to obtain extremely excellent anticorrosion performance (particularly at the edges and joints).
Used). Topcoat paint (B) is a topcoat water-based paint (manufactured by Kansai Paint Co., Ltd., a trade name,
Asuka Bake (T) 5Y7 / 1 gloss 40),
It is a paint that is not subject to regulations such as the Fire Defense Law and the Industrial Safety Law. The components of the topcoat paint (B) are shown in Table 1.
【０００６】[0006]
【表１】
上塗り水性塗料（Ｂ）は、アクリルで変性されたアルキ
ド樹脂により、優れた耐候性を有し、メラミン樹脂の組
合せにより、１３０〜１５０℃で２０〜３０分の低温で
硬化し、更に、エポキシ樹脂を添加することにより、耐
候性に悪影響を与えることなく非常に優れた付着力を有
するようになる。図２は、本発明における金属材の塗装
方法のフローチャートである。まず、ステップＳ１０１
において、金属材料１に下塗り塗料（Ａ）の電着塗膜２
を１８〜２２μｍ形成する。ここで、金属材料１である
酸洗鋼板やＳＰＣＣ材に対して、塗装に適した表面状態
にするため、りん酸亜鉛被膜といった化学的処理やサン
ドブラスト処理といった機械的前処理を実施する。次
に、ステップＳ１０２において、加熱硬化させる。次
に、ステップＳ１０３において、上塗り塗料（Ｂ）の上
塗り塗膜３を形成する。次に、ステップＳ１０４におい
て、加熱硬化させる。次に、ステップＳ１０５におい
て、物理的に凹凸をつけ付着面積を拡大することにより
付着力を向上させるペーパー研磨はしないで、常温乾燥
型エポキシ樹脂系塗料（Ｃ）の塗膜を形成する。
（実施形態２）図３は、本発明の実施形態２における金
属材への塗装系を示す断面図である。金属材料１に下塗
り塗料（Ａ）の下塗り塗膜４を形成し、その塗面に上塗
り塗料（Ｂ）の上塗り塗膜３を形成する。[Table 1] The top coating water-based paint (B) has excellent weather resistance due to the alkyd resin modified with acrylic, and is cured at a low temperature of 130 to 150 ° C. for 20 to 30 minutes by the combination of the melamine resin, and further, the epoxy resin. The addition of the compound (1) makes it possible to have a very excellent adhesive force without adversely affecting the weather resistance. FIG. 2 is a flowchart of the method for coating a metal material according to the present invention. First, step S101
In, the metal material 1 and the electrodeposition coating film 2 of the undercoat paint (A)
18 to 22 μm is formed. Here, the pickled steel sheet or SPCC material which is the metal material 1 is subjected to a chemical treatment such as a zinc phosphate coating or a mechanical pretreatment such as a sandblasting treatment in order to obtain a surface state suitable for coating. Next, in step S102, heat curing is performed. Next, in step S103, the top coat film 3 of the top coat paint (B) is formed. Next, in step S104, heat curing is performed. Next, in step S105, a coating film of a room temperature dry type epoxy resin-based coating material (C) is formed without performing paper polishing for physically increasing the adhesion area to increase the adhesion area. (Embodiment 2) FIG. 3 is a sectional view showing a coating system for a metal material according to Embodiment 2 of the present invention. An undercoat coating film 4 of the undercoat paint (A) is formed on the metal material 1, and an overcoat coating film 3 of the topcoat paint (B) is formed on the coated surface.
【０００７】下塗り塗料（Ａ）として、優れた防食性能
を得るためにアクリル変性アルキド樹脂ワニス、水溶性
メラミン樹脂ワニス、水性エポキシ樹脂ワニス、着色顔
料、添加剤及び希釈剤より構成され、消防法、労働安全
法等の規制を受けない下塗り水性塗料（関西ペイント社
製、商品名、アスカベーク（Ｔ）ＥＬＴ サフェーサ）
を使用した。下塗り塗料（Ａ）の成分は表２に示す。The undercoat paint (A) is composed of an acrylic-modified alkyd resin varnish, a water-soluble melamine resin varnish, an aqueous epoxy resin varnish, a color pigment, an additive and a diluent in order to obtain an excellent anticorrosion property. Undercoating water-based paint that is not subject to regulations such as the Industrial Safety Act (Kansai Paint Co., Ltd., trade name, Asuka Bake (T) ELT Surfacer)
It was used. The components of the undercoat paint (A) are shown in Table 2.
【０００８】[0008]
【表２】
下塗り塗料（Ａ）は、アクリル変性アルキド樹脂、メラ
ミン樹脂の組合せにより、１３０〜１５０℃で２０〜３
０分の低温で硬化し、また水分及び酸素の透過性を抑制
できる緻密な塗膜を形成し、更にエポキシ樹脂を配合す
ることにより、優れた防錆力及び付着力を有するように
なる。上塗り塗料（Ｂ）は、アクリルで変性されたアル
キド樹脂により、優れた耐候性を有し、メラミン樹脂の
組合せにより、１３０〜１５０℃で２０〜３０分の低温
（下塗り塗料と同じ条件）で硬化し、更に、エポキシ樹
脂を添加することにより、耐候性に悪影響を与えること
なく非常に優れた付着力を有する上塗り水性塗料であ
る。図２は、本発明における金属材の塗装方法のフロー
チャートである。まず、ステップＳ１０１において、金
属材料１に下塗り塗料（Ａ）の下塗り塗膜４を１０〜６
０μｍ形成する。ここで、金属材料１である酸洗鋼板や
ＳＰＣＣ材に対して、塗装に適した表面状態にするた
め、りん酸亜鉛被膜といった化学的処理やサンドブラス
ト処理といった機械的前処理を実施する。次に、ステッ
プＳ１０２において、加熱硬化させる。次に、ステップ
Ｓ１０３において、上塗り塗料（Ｂ）の上塗り塗膜３を
形成する。[Table 2] The undercoat paint (A) is 20 to 3 at 130 to 150 ° C. depending on the combination of the acrylic modified alkyd resin and the melamine resin.
By curing at a low temperature for 0 minutes, forming a dense coating film capable of suppressing moisture and oxygen permeability, and further incorporating an epoxy resin, excellent rust prevention and adhesion can be obtained. The top coat (B) has excellent weather resistance due to the alkyd resin modified with acrylic, and is cured at a low temperature (same conditions as the bottom coat) at 130 to 150 ° C. for 20 to 30 minutes by the combination of the melamine resins. In addition, the addition of an epoxy resin is a top-coating water-based paint having very excellent adhesion without adversely affecting weather resistance. FIG. 2 is a flowchart of the method for coating a metal material according to the present invention. First, in step S101, 10 to 6 of the undercoat coating film 4 of the undercoat paint (A) is applied to the metal material 1.
0 μm is formed. Here, the pickled steel sheet or SPCC material which is the metal material 1 is subjected to a chemical treatment such as a zinc phosphate coating or a mechanical pretreatment such as a sandblasting treatment in order to obtain a surface state suitable for coating. Next, in step S102, heat curing is performed. Next, in step S103, the top coat film 3 of the top coat paint (B) is formed.
【０００９】次に、ステップＳ１０４において、加熱硬
化させる。次に、ステップＳ１０５において、物理的に
凹凸をつけ付着面積を拡大することにより付着力を向上
させるペーパー研磨はしないで、常温乾燥型エポキシ樹
脂系塗料（Ｃ）の塗膜を形成する。
（実施形態３）図４は、本発明の実施形態３における金
属材への塗装系を示す断面図である。下塗り塗装した金
属材料１に上塗り塗料（Ｂ）の上塗り塗膜３を形成し、
その塗面に常温乾燥型エポキシ樹脂系塗料（Ｃ）の常温
乾燥塗膜５を形成する。上塗り塗料（Ｂ）は、エポキシ
樹脂を添加することにより、下塗り塗膜の付着力が向上
するだけでなく、この上に塗膜を形成する場合にも物理
的な研磨なしで付着力を向上させることができる上塗り
水性塗料である。常温乾燥型エポキシ樹脂系塗料（Ｃ）
として、常温乾燥型エポキシ樹脂系塗料（付着向上バイ
ンダー塗料、関西ペイント社製、商品名、ＦＫバインダ
ー、またはトウペ社製、商品名、ＸＸクリヤ）を使用し
た。尚、被塗装材に上塗り塗料（Ｂ）の上塗り塗膜を形
成する場合にも物理的な研磨なしで付着力を向上させる
ことができる上塗り水性塗料である。図２は、本発明に
おける金属材の塗装方法のフローチャートである。ま
ず、ステップＳ１０１において、金属材料１に下塗り塗
料（Ａ）の塗膜を形成する。例えば下塗り塗料（Ａ）と
しては、実施形態１の下塗り塗料であるエポキシ樹脂系
カチオン電着塗料であってもいいし、実施形態２のアク
リル変性アルキド樹脂ワニス、水溶性メラミン樹脂ワニ
ス、水性エポキシ樹脂ワニス、着色顔料、添加剤及び希
釈剤より構成される下塗り水性塗料であってもいい。Next, in step S104, heat curing is performed. Next, in step S105, a coating film of the room temperature dry type epoxy resin coating material (C) is formed without performing paper polishing for physically increasing the adhesion area to increase the adhesion area. (Embodiment 3) FIG. 4 is a sectional view showing a coating system for a metal material according to Embodiment 3 of the present invention. Form the top coat film 3 of the top coat paint (B) on the undercoated metal material 1,
A room temperature dry coating film 5 of a room temperature dry type epoxy resin coating material (C) is formed on the coated surface. By adding an epoxy resin, the top coat paint (B) not only improves the adhesion of the undercoat coating film, but also improves the adhesion force without physical polishing when the coating film is formed thereon. It is a topcoat water-based paint that can be applied. Room temperature dry type epoxy resin paint (C)
A room temperature dry type epoxy resin-based paint (adhesion-improving binder paint, manufactured by Kansai Paint Co., Ltd., trade name, FK binder, or manufactured by Toupe Co., trade name, XX clear) was used. It is to be noted that this is a water-based top-coating paint capable of improving the adhesive force without physical polishing even when the top-coating paint film of the top-coating paint (B) is formed on the material to be coated. FIG. 2 is a flowchart of the method for coating a metal material according to the present invention. First, in step S101, a coating film of the undercoat paint (A) is formed on the metal material 1. For example, the undercoat paint (A) may be an epoxy resin-based cationic electrodeposition paint that is the undercoat paint of Embodiment 1, or an acrylic-modified alkyd resin varnish, a water-soluble melamine resin varnish, or an aqueous epoxy resin of Embodiment 2. It may be an undercoating water-based paint composed of a varnish, a coloring pigment, an additive and a diluent.
【００１０】ここで、金属材料１である酸洗鋼板やＳＰ
ＣＣ材に対して、塗装に適した表面状態にするため、り
ん酸亜鉛被膜といった化学的処理やサンドブラスト処理
といった機械的前処理を実施する。次に、ステップＳ１
０２において、加熱硬化させる。次に、ステップＳ１０
３において、上塗り塗料（Ｂ）の上塗り塗膜３を形成す
る。次に、ステップＳ１０４において、加熱硬化させ
る。次に、ステップＳ１０５において、物理的に凹凸を
つけ付着面積を拡大することにより付着力を向上させる
ペーパー研磨はしないで、常温乾燥型エポキシ樹脂系塗
料（Ｃ）の常温乾燥塗膜５を３〜４０μｍ形成する。そ
の後、一般的に使用されているラッカー系塗料、レタン
系塗料で１０〜４０μｍの塗膜を形成する。これらの3
通りについて、以下のような試験を行った。
１．物性試験
（１）初期及び２次付着力試験：ＪＩＳ Ｋ−５４００
付着試験（碁盤目＋粘着テープ試験）
（２）初期及び２次硬度試験：ＪＩＳ Ｋ−５４００鉛
筆引っかき試験（手かき法）
（３）初期及び２次耐衝撃試験：ＪＩＳ Ｋ−５４００
耐衝撃試験（デュポン式）
２．耐久性試験
（１）塩水噴霧試験：ＪＩＳ Ｋ−５４００塩水噴霧試
験１５００時間（実施例２、実施例３は５００時間）実
施後の外観判定及び２次物性試験
（２）耐湿試験：ＪＩＳ Ｋ−５４００耐湿試験（結露
発生５０℃、９８％ＲＨ）１５００時間（実施例２、実
施例３は５００時間）実施後の外観判定及び２次物性試
験
（３）亜硫酸ガス試験：２０ｐｐｍ、４０℃、９０％Ｒ
Ｈ１０００時間（実施例２は５００時間）実施後の外観
判定及び２次物性試験。Here, the pickled steel sheet or SP which is the metal material 1
The CC material is subjected to a chemical treatment such as a zinc phosphate coating and a mechanical pretreatment such as a sandblasting treatment in order to obtain a surface state suitable for coating. Next, step S1
At 02, heat cure. Next, step S10
3, the top coat film 3 of the top coat paint (B) is formed. Next, in step S104, heat curing is performed. Next, in step S105, the room temperature dry coating film 5 of the room temperature dry type epoxy resin-based coating material (C) 3 to 40 μm is formed. After that, a coating film having a thickness of 10 to 40 μm is formed with a commonly used lacquer-based paint or retan-based paint. These three
The following tests were performed on the street. 1. Physical property test (1) Initial and secondary adhesion test: JIS K-5400
Adhesion test (cross-cut + adhesive tape test) (2) Initial and secondary hardness test: JIS K-5400 Pencil scratch test (hand scraping method) (3) Initial and secondary impact resistance test: JIS K-5400
Impact resistance test (DuPont type) 2. Durability test (1) Salt spray test: JIS K-5400 Salt spray test 1500 hours (500 hours for Examples 2 and 3) Appearance judgment and secondary physical property test (2) Moisture resistance test: JIS K- 5400 Humidity resistance test (condensation generation 50 ° C., 98% RH) 1500 hours (500 hours in Examples 2 and 3) Appearance determination and secondary physical property test (3) Sulfurous acid gas test: 20 ppm, 40 ° C., 90 % R
Appearance judgment and secondary physical property test after H1000 hours (Example 2 was 500 hours).
【００１１】（４）塩素ガス試験：１ｐｐｍ、４０℃、
９０％ＲＨ１０００時間（実施例２は５００時間）実施
後の外観判定及び２次物性試験。
（５）耐候試験：ＪＩＳ Ｋ−５４００促進耐候性（サ
ンシャインカーボンアーク灯式）５００時間実施後の外
観判定、初期状態に対する色差、光沢度保持率及び２次
物性試験。
これらの試験結果を表３に示す。表３から実施例１〜３
において、非常に優れた塗膜性能が得られることがわか
る。(4) Chlorine gas test: 1 ppm, 40 ° C.
Appearance determination and secondary physical property test after 90% RH for 1000 hours (Example 2 is 500 hours). (5) Weather resistance test: JIS K-5400 accelerated weather resistance (sunshine carbon arc lamp type) appearance determination after 500 hours, color difference from initial state, gloss retention rate and secondary physical property test. The results of these tests are shown in Table 3. From Table 3 Examples 1-3
In, it is understood that very excellent coating film performance can be obtained.
【００１２】[0012]
【表３】
これらのことから、アクリル変性アルキド樹脂、水溶性
メラミン樹脂、エポキシ樹脂、着色顔料、添加剤及び希
釈剤より構成された水性塗料で上塗り塗装を行なうの
で、消防法、労働安全法等の法規制を受けずに塗装する
ことができる。前処理〜下塗り〜上塗りの自動塗装ライ
ンで塗装を実施する場合、ライン全体の設置場所の制約
を受けずに塗装を行なうことができる。また、上塗り水
性塗料は優れた耐候性を有するアクリル樹脂系の特性を
保有し、かつ一般レベルのメラミン樹脂系の熱硬化条件
（１３０〜１５０℃で２０〜３０分）で適切な塗膜性能
を得ることができる。
（他の実施例）アクリル変性アルキド樹脂、水溶性メラ
ミン樹脂、エポキシ樹脂、着色顔料、添加剤及び希釈剤
より構成された水性塗料は、中塗り塗料としても使用で
きる。膜厚１０〜４０μｍ程度形成させると、塗膜の肌
が一般の有機溶剤塗料及び粉体塗料で形成された塗膜と
比較して非常に平滑（ゆず肌のような塗膜の凹凸がほと
んど生じない）で美しい下地塗膜が形成されるため、特
に美観を重視する塗装品の中塗り塗料として適してい
る。適用できる上塗り塗料は、メラミン樹脂系、ポリエ
ステル樹脂系、アクリル樹脂系、レタン樹脂系、ラッカ
ー系と一般に用いられるものである。[Table 3] For these reasons, the water-based paint composed of acrylic-modified alkyd resin, water-soluble melamine resin, epoxy resin, coloring pigment, additives and diluent is used as the top coat, so the Fire and Industrial Safety Act, etc. Can be painted without receiving. When performing the coating in the automatic coating line of pretreatment, undercoating, and topcoating, the coating can be performed without being restricted by the installation location of the entire line. In addition, the top coating water-based coating material has the properties of an acrylic resin system having excellent weather resistance, and has an appropriate coating performance under the general level of melamine resin system thermosetting conditions (20 to 30 minutes at 130 to 150 ° C). Obtainable. (Other Examples) A water-based paint composed of an acrylic modified alkyd resin, a water-soluble melamine resin, an epoxy resin, a coloring pigment, an additive and a diluent can also be used as an intermediate paint. When a film thickness of about 10 to 40 μm is formed, the skin of the coating film is very smooth as compared with a coating film formed by a general organic solvent paint or powder paint (almost any unevenness of the coating film such as yuzu skin occurs. Since it forms a beautiful undercoating film, it is suitable as an intermediate coating material for painted products where aesthetics are important. Applicable top coatings are generally used melamine resin type, polyester resin type, acrylic resin type, retan resin type and lacquer type.
【００１３】以上のような方法で塗装された金属材は、
耐候性に優れるなどの優れた塗膜性能を有し、消防法、
労働安全法等の法規制を受けずに塗装することができる
ため、塗装を実施する場所の制約を受けることがない。
尚、金属材への塗装方法は配電盤・制御盤の金属材料で
ある鋼板やＳＰＣＣ材部品に対して適用することができ
るし、車両を構成する鋼板、ＳＰＣＣ材、アルミ材及び
ステンレス材にも適用できる。The metal material coated by the above method is
It has excellent coating performance such as excellent weather resistance,
Since the paint can be applied without being subject to the Industrial Safety Act and other legal regulations, there is no restriction on the place where the paint is applied.
The coating method for metal materials can be applied to steel plates and SPCC material parts that are metal materials for switchboards and control boards, and also to steel plates, SPCC materials, aluminum materials and stainless steel materials that make up vehicles. it can.
【００１４】[0014]
【発明の効果】本発明によれば、消防法、労働安全法等
の法規制を受けないアクリル変性アルキド樹脂、水溶性
メラミン樹脂、エポキシ樹脂、着色顔料、添加剤及び希
釈剤より構成された水性塗料で塗装を行なうので、前処
理〜下塗り〜上塗りの自動塗装ラインを制約を受けるこ
となく設置することができる。EFFECTS OF THE INVENTION According to the present invention, an aqueous solution composed of an acryl-modified alkyd resin, a water-soluble melamine resin, an epoxy resin, a coloring pigment, an additive and a diluent, which is not subject to legal regulations such as the Fire Defense Law and the Industrial Safety Law. Since the paint is applied, it is possible to set up an automatic coating line for pretreatment, undercoating, and topcoating without any restrictions.
【図１】本発明の実施形態１における金属材への塗装系
を示す断面図。FIG. 1 is a sectional view showing a coating system for a metal material according to a first embodiment of the present invention.
【図２】本発明の金属材の塗装方法のフローチャート。FIG. 2 is a flowchart of a metal material coating method of the present invention.
【図３】本発明の実施形態２における金属材の塗装系を
示す断面図。FIG. 3 is a cross-sectional view showing a coating system for metal materials according to Embodiment 2 of the present invention.
【図４】本発明の実施形態３における金属材の塗装系を
示す断面図。FIG. 4 is a cross-sectional view showing a coating system for metal materials according to a third embodiment of the present invention.
１…金属材料 ２…電着塗膜 ３…上塗り塗膜 ４…下塗り塗膜 ５…常温乾燥塗膜 1 ... Metal material 2 ... Electrodeposition coating 3 ... Top coating film 4 ... Undercoat 5 ... Room temperature dry coating
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０９Ｄ 163/00 Ｃ０９Ｄ 163/00 167/08 167/08 Ｃ２５Ｄ 13/00 ３０８ Ｃ２５Ｄ 13/00 ３０８Ｃ Ｆターム(参考） 4D075 AE03 AE07 AE09 AE10 BB26Z BB93Z CA32 CA33 CA44 CA47 DA23 DB02 DB05 DC50 EA06 EA07 EB22 EB32 EB33 EB36 4J038 DA161 DB001 DD121 DD181 MA08 MA10 PA04 PA19 PC02─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C09D 163/00 C09D 163/00 167/08 167/08 C25D 13/00 308 C25D 13/00 308C F term ( Reference) 4D075 AE03 AE07 AE09 AE10 BB26Z BB93Z CA32 CA33 CA44 CA47 DA23 DB02 DB05 DC50 EA06 EA07 EB22 EB32 EB33 EB36 4J038 DA161 DB001 DD121 DD181 MA08 MA10 PA04 PA19 PC02
Claims (9)
料を塗装するステップと、前記エポキシ樹脂系カチオン
電着塗料を加熱硬化させるステップと、前記加熱硬化さ
れたエポキシ樹脂系カチオン電着塗料の塗面にアクリル
変性アルキド樹脂、水溶性メラミン樹脂及びエポキシ樹
脂を含有する水性上塗り塗料を塗装するステップと、前
記水性上塗り塗料を加熱硬化させるステップとからなる
ことを特徴とする金属材の塗装方法。1. A step of applying an epoxy resin-based cationic electrodeposition coating material to a metal material, a step of heating and curing the epoxy resin-based cationic electrodeposition coating material, and a step of applying the heat-cured epoxy resin-based cationic electrodeposition coating material. A method for coating a metal material, which comprises a step of coating a water-based top coating composition containing an acrylic modified alkyd resin, a water-soluble melamine resin and an epoxy resin on a coating surface, and a step of heating and curing the water-based top coating composition.
溶性メラミン樹脂及びエポキシ樹脂を含有する水性下塗
り塗料を塗装するステップと、前記水性下塗り塗料を加
熱硬化させるステップと、前記加熱硬化された水性下塗
り塗料の塗面にアクリル変性アルキド樹脂、水溶性メラ
ミン樹脂及びエポキシ樹脂を含有する水性上塗り塗料を
塗装するステップと、前記水性上塗り塗料を加熱硬化さ
せるステップからなることを特徴とする金属材の塗装方
法。2. A step of applying a water-based undercoat paint containing an acrylic modified alkyd resin, a water-soluble melamine resin and an epoxy resin to a metal material, a step of heat-curing the water-based undercoat paint, and a heat-cured aqueous solution. Coating of a metal material, which comprises a step of coating a water-based top coating containing an acrylic modified alkyd resin, a water-soluble melamine resin and an epoxy resin on the coating surface of the base coating, and a step of heating and curing the water-based top coating. Method.
水溶性メラミン樹脂及びエポキシ樹脂を含有する水性上
塗り塗料と塗装するステップと、前記水性上塗り塗料を
加熱硬化させるステップと、前記加熱硬化された水性上
塗り塗料の塗面に有機溶剤型塗料を塗装するステップか
らなることを特徴とする金属材の塗装方法。3. The material to be coated is an acrylic modified alkyd resin,
A step of coating with an aqueous topcoat containing a water-soluble melamine resin and an epoxy resin, a step of heating and curing the aqueous topcoat, and a step of applying an organic solvent-based coating on the coating surface of the heat-cured aqueous topcoat A method for coating a metal material, which comprises:
変性アルキド樹脂、水溶性メラミン樹脂及びエポキシ樹
脂を含有する水性上塗り塗料と塗装するステップと、前
記水性上塗り塗料を加熱硬化させるステップと、前記加
熱硬化された水性上塗り塗料の塗面に有機溶剤型塗料を
塗装するステップからなることを特徴とする金属材の塗
装方法。4. A step of coating a metal material coated with an undercoating material with an aqueous topcoating material containing an acrylic modified alkyd resin, a water-soluble melamine resin and an epoxy resin, a step of heating and curing the aqueous topcoating material, and A method for coating a metal material, which comprises the step of coating an organic solvent-based coating material on the surface of a heat-cured water-based top coating material.
変性アルキド樹脂、水溶性メラミン樹脂及びエポキシ樹
脂を含有する水性中塗り塗料と塗装するステップと、前
記水性中塗り塗料を加熱硬化させるステップと、前記加
熱硬化された水性中塗り塗料の塗面に上塗り塗料を塗装
するステップからなることを特徴とする金属材の塗装方
法。5. A step of coating a metallic material coated with an undercoating material with an aqueous intermediate coating material containing an acrylic modified alkyd resin, a water-soluble melamine resin and an epoxy resin, and a step of heating and curing the aqueous intermediate coating material. A method for coating a metal material, which comprises a step of applying a topcoat paint on the surface of the heat-cured water-based intermediate coat paint.
を特徴とする請求項１乃至請求項６のいずれかに記載の
金属材の塗装方法。6. The method for coating a metal material according to claim 1, wherein the coating is carried out by heating at 130 ° C. to 150 ° C.
の金属材の塗装方法で塗装されたことを特徴とする塗装
物。7. A coated article coated with the method for coating a metal material according to any one of claims 1 to 6.
載の金属材の塗装方法で塗装されたことを特徴とする配
電盤。8. A switchboard coated by the method for coating a metal material according to any one of claims 1 to 6.
載の金属材の塗装方法で塗装されたことを特徴とする制
御盤。9. A control panel coated with the method for coating a metal material according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002045599A JP2003245598A (en) | 2002-02-22 | 2002-02-22 | Method for coating metal material, coated article, distribution board and control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002045599A JP2003245598A (en) | 2002-02-22 | 2002-02-22 | Method for coating metal material, coated article, distribution board and control panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003245598A true JP2003245598A (en) | 2003-09-02 |
Family
ID=28659352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002045599A Pending JP2003245598A (en) | 2002-02-22 | 2002-02-22 | Method for coating metal material, coated article, distribution board and control panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003245598A (en) |
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|---|---|---|---|---|
| JP2006088066A (en) * | 2004-09-24 | 2006-04-06 | Toshiba Corp | Coating method of metallic material and coated material |
| JP2006169331A (en) * | 2004-12-15 | 2006-06-29 | Nissan Motor Co Ltd | Undercoat coating composition and undercoat coating film |
| JP2006169332A (en) * | 2004-12-15 | 2006-06-29 | Nissan Motor Co Ltd | Colored topcoat coating composition and colored topcoat coating film |
| JP2006169335A (en) * | 2004-12-15 | 2006-06-29 | Nissan Motor Co Ltd | Coating composition for non-exposed surface and coating film for non-exposed surface |
| KR100668176B1 (en) | 2005-07-22 | 2007-01-11 | 유니온스틸 주식회사 | Board for aqua pen combinable as surface-scattering type screen |
| JP2008143982A (en) * | 2006-12-07 | 2008-06-26 | Toshiba Corp | Thermosetting coating material and coating method |
| CN103990588A (en) * | 2014-05-07 | 2014-08-20 | 河海大学 | Long-acting protection multi-layer epoxy heavy-corrosion-prevention coating for sea steel structure and manufacturing method thereof |
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2002
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006088066A (en) * | 2004-09-24 | 2006-04-06 | Toshiba Corp | Coating method of metallic material and coated material |
| JP4568061B2 (en) * | 2004-09-24 | 2010-10-27 | 株式会社東芝 | How to paint metal |
| JP2006169331A (en) * | 2004-12-15 | 2006-06-29 | Nissan Motor Co Ltd | Undercoat coating composition and undercoat coating film |
| JP2006169332A (en) * | 2004-12-15 | 2006-06-29 | Nissan Motor Co Ltd | Colored topcoat coating composition and colored topcoat coating film |
| JP2006169335A (en) * | 2004-12-15 | 2006-06-29 | Nissan Motor Co Ltd | Coating composition for non-exposed surface and coating film for non-exposed surface |
| JP4674793B2 (en) * | 2004-12-15 | 2011-04-20 | 日産自動車株式会社 | Undercoat paint composition and undercoat coating film |
| JP4674796B2 (en) * | 2004-12-15 | 2011-04-20 | 日産自動車株式会社 | Non-exposed surface coating composition and non-exposed surface coating |
| KR100668176B1 (en) | 2005-07-22 | 2007-01-11 | 유니온스틸 주식회사 | Board for aqua pen combinable as surface-scattering type screen |
| JP2008143982A (en) * | 2006-12-07 | 2008-06-26 | Toshiba Corp | Thermosetting coating material and coating method |
| CN103990588A (en) * | 2014-05-07 | 2014-08-20 | 河海大学 | Long-acting protection multi-layer epoxy heavy-corrosion-prevention coating for sea steel structure and manufacturing method thereof |
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