JPH0941194A - Colored aluminum material - Google Patents
Colored aluminum materialInfo
- Publication number
- JPH0941194A JPH0941194A JP8623096A JP8623096A JPH0941194A JP H0941194 A JPH0941194 A JP H0941194A JP 8623096 A JP8623096 A JP 8623096A JP 8623096 A JP8623096 A JP 8623096A JP H0941194 A JPH0941194 A JP H0941194A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum material
- electrodeposition coating
- colored
- feeling
- coating film
- 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.)
- Granted
Links
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Abstract
(57)【要約】
【課題】立体感、メタリック感、落着き感、暖かみ感等
の質感や高級感が付与されているとともに、調色が簡単
で明度の高いグレー塗膜を有する着色アルミニウム材を
提供すること。
【解決手段】電解着色した又はしていない酸化皮膜を有
する陽極酸化アルミニウム素材に、艶消し黒色カラーク
リアー電着塗膜を被覆させてなることを特徴とする着色
アルミニウム材。(57) [Abstract] [PROBLEMS] A colored aluminum material having a gray coating film with a high lightness, which is provided with a texture and a high-grade feeling such as a three-dimensional effect, a metallic feeling, a calm feeling, and a warm feeling. To provide. SOLUTION: The colored aluminum material is characterized in that an anodized aluminum material having an electrolytically colored or unelectrolyzed oxide film is coated with a matte black color clear electrodeposition coating film.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表面が艶消しで、
かつ陽極酸化皮膜及び着色電着塗膜との複合色調を有す
る新規な着色アルミニウム材に関する。TECHNICAL FIELD The present invention has a matte surface,
The present invention also relates to a novel colored aluminum material having a complex color tone with an anodized film and a colored electrodeposition coating film.
【０００２】[0002]
【従来の技術】従来、陽極酸化処理したアルミニウム素
材は軽量で強度が強いこと及び耐蝕性等に優れることか
らサッシ等の建材関係に多く使用されている。また、該
アルミニウム素材には耐モルタル性、耐汚染性等の性能
を付与させるために、通常、クリアー上塗り電着塗膜が
被覆されている。2. Description of the Related Art Conventionally, anodized aluminum materials have been widely used for building materials such as sashes because of their light weight, high strength, and excellent corrosion resistance. Further, the aluminum material is usually coated with a clear topcoat electrodeposition coating film in order to impart performances such as mortar resistance and stain resistance.
【０００３】近年、社会環境が大きく変化するのに伴
い、塗料が、単に美観を与え、素材を保護するといった
目的だけではなく、従来イメージから脱却した感性、高
級感等を付与した素材が消費者ニーズから要望されてい
るのが現状である。[0003] In recent years, as the social environment has changed drastically, paints are used not only for the purpose of merely providing aesthetics and protecting materials, but also for materials that give a feeling, a sense of luxury, etc. The current situation is that there is a demand from the needs.
【０００４】アルミニウムサッシ等の建材分野において
も、アルミニウム素材によるメタリック感は単調な色感
から需要家から飽きられアルミニウム素材に電解着色し
た陽極酸化皮膜を施した着色アルミニウム材が開発され
多く使用されるようになってきている。しかしながら、
該電解着色皮膜による色調のみでは消費者ニーズを満足
させるには至っていない。Also in the field of building materials such as aluminum sashes, the metallic feeling due to the aluminum material is tired of the customers due to the monotonous color feeling, and colored aluminum materials having an anodized film electrolytically colored on the aluminum material have been developed and often used. Is starting to appear. However,
Consumers' needs have not been satisfied only by the color tone of the electrolytically colored film.
【０００５】また、ブロンズ色調に電解着色した陽極酸
化皮膜を有する陽極酸化アルミニウム素材に青等の有彩
色顔料を含むカラークリアー電着塗料を塗装して電解着
色皮膜とカラークリアー電着塗膜との複合色調によりグ
レートーン仕上げにしたものが知られている。Further, a color clear electrodeposition paint containing a chromatic color pigment such as blue is applied to an anodized aluminum material having an anodized film electrolytically colored in bronze color to form an electrolytic colored film and a color clear electrodeposition coating film. It is known to have a gray tone finish with a complex color tone.
【０００６】しかしながら、従来のグレートーン仕上げ
においては、電解着色皮膜の色調に応じて電着塗膜の色
調を選択し微妙に調整する必要があるため、調色が煩わ
しいこと及び明度の高い塗膜を形成することが難しく、
明るい色やアルミニウム素材感がなくなってしまうとい
った問題点がある。また、このような方法によって形成
された塗膜は、一般的には表面光沢が高いものでありア
ルミニウム材に落着き感、暖かみ感等の質感や高級感を
与えるものではなかった。However, in the conventional gray tone finish, since it is necessary to select and finely adjust the color tone of the electrodeposition coating film according to the color tone of the electrolytically colored film, it is troublesome to adjust the color tone and the coating film with high brightness. Difficult to form,
There is a problem that the bright colors and the feeling of aluminum texture are lost. Further, the coating film formed by such a method generally has a high surface gloss, and does not give the aluminum material a feeling of calmness, warmth or the like or a high-grade feeling.
【０００７】[0007]
【発明が解決しようとする課題】本発明の目的は、着色
アルミニウム材として、立体感、メタリック感、落着き
感、暖かみ感等の質感や高級感が付与されているととも
に、調色が簡単で明度の高いグレー塗膜を有する着色ア
ルミニウム材を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a colored aluminum material with a texture, such as a three-dimensional effect, a metallic feeling, a calm feeling, a warm feeling, and a high-class feeling, and at the same time, a simple toning and lightness. To provide a colored aluminum material having a high gray coating.
【０００８】[0008]
【課題を解決するための手段】本発明者は、上記目的を
達成すべく鋭意研究を重ねた結果、特に、電解着色した
又はしていない陽極酸化皮膜を有する陽極酸化アルミニ
ウム素材の該皮膜表面に、カラークリアー電着塗料とし
て艶消し黒色カラークリアー電着塗料を使用することに
より、アルミニウム材表面に立体感、メタリック感、落
着き感、暖かみ感等の質感や高級感を与えることができ
るとともに、陽極酸化皮膜の色調に応じて電着塗膜の色
調を選択する必要がないので調色が簡単でかつ明度の高
い塗膜を容易に提供できることを見出し、本発明を完成
するに至った。Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventor has found that, in particular, the surface of an anodized aluminum material having an anodized film which is electrolytically colored or not. By using a matt black color clear electrodeposition paint as the color clear electrodeposition paint, it is possible to give the surface of the aluminum material a three-dimensional, metallic, calm, warmth, etc. texture and a high-grade feeling. The present invention has been completed based on the finding that it is not necessary to select the color tone of the electrodeposition coating film depending on the color tone of the oxide film, and thus a coating film with easy toning and high brightness can be easily provided.
【０００９】即ち、本発明は、電解着色した又はしてい
ない陽極酸化皮膜を有する陽極酸化アルミニウム素材
に、艶消し黒色カラークリアー電着塗膜を被覆させてな
ることを特徴とする着色アルミニウム材に係る。That is, the present invention provides a colored aluminum material characterized by comprising an anodized aluminum material having an anodized film which is or is not electrolytically colored and coated with a matte black color clear electrodeposition coating film. Pertain.
【００１０】[0010]
【発明の実施の形態】本発明において使用する陽極酸化
アルミニウム素材は、陽極酸化したアルミニウム素材の
陽極酸化皮膜を電解着色したもの又は電解着色していな
いものである。電解着色する方法としては、従来から公
知の着色技術の方法を採用できる。例えば、陽極酸化を
行った後、金属塩を含む電解液中で２次電解することに
より酸化皮膜を着色させるか、又は陽極酸化するときの
電解液中に金属塩を含ませておき、陽極酸化処理と同時
に酸化皮膜を着色させることができる。BEST MODE FOR CARRYING OUT THE INVENTION The anodized aluminum material used in the present invention is an anodized aluminum material which is electrolytically colored or not electrolytically colored. As a method of electrolytic coloring, a conventionally known coloring technique can be adopted. For example, after anodizing, the oxide film is colored by secondary electrolysis in an electrolytic solution containing a metal salt, or the electrolytic solution used for anodizing contains a metallic salt, and the anodizing is performed. The oxide film can be colored at the same time as the treatment.
【００１１】上記金属塩としては、例えば、ニッケル
塩、銅塩、錫塩、コバルト塩、鉛塩、マンガン塩、金
塩、銀塩、モリブデン塩、セレン塩等が挙げられる。塩
の形としては、硫酸塩等の無機酸塩、酢酸塩、酸素酸塩
等の有機酸塩が包含される。Examples of the metal salts include nickel salts, copper salts, tin salts, cobalt salts, lead salts, manganese salts, gold salts, silver salts, molybdenum salts and selenium salts. Examples of the salt form include inorganic acid salts such as sulfates and organic acid salts such as acetates and oxyacid salts.
【００１２】本発明における上記アルミニウム素材の陽
極酸化皮膜の色調は、ＪＩＳ Ｚ８７２９のＬ*ａ*ｂ*
表色系による物体色において、明度Ｌ*＝２５〜９５、
色相ａ*＝−２〜６、彩度ｂ*＝−１〜１８の範囲内であ
ることが好ましい。明度Ｌ＊が約９５を上回るとアルミ
ニウム素材のメタリック感が強くなりすぎる傾向にあ
り、一方、明度Ｌ＊が約２５を下回るとアルミニウム素
材のメタリック感がなくなる傾向にあるので好ましくな
い。また、色相ａ*及び彩度ｂ*が上記した範囲をはずれ
るとグレーのメタリック感を得ることが困難になるので
好ましくない。The color tone of the anodic oxide film of the aluminum material in the present invention is L * a * b * of JIS Z8729 .
In the object color according to the color system, the lightness L * = 25 to 95,
It is preferable that the hue a * is in the range of −2 to 6 and the saturation b * is in the range of −1 to 18. When the lightness L * exceeds about 95, the metallic feeling of the aluminum material tends to be too strong, while when the lightness L * is less than about 25, the metallic feeling of the aluminum material tends to disappear, which is not preferable. Further, if the hue a * and the saturation b * deviate from the above ranges, it is difficult to obtain a gray metallic feeling, which is not preferable.
【００１３】本発明では、上記陽極酸化皮膜を有する陽
極酸化アルミニウム素材表面に、艶消し黒色カラークリ
アー電着塗膜が被覆される。In the present invention, the surface of the anodized aluminum material having the above anodized film is coated with a matte black color clear electrodeposition coating film.
【００１４】艶消し黒色カラークリアー電着塗膜は、そ
れ自体無彩色である黒色に着色されているとともに透明
性のある艶消し塗膜であり、該塗膜を拡散、透過した光
線が特に下地の陽極酸化皮膜表面で反射又は吸収された
光線と重なり合ってアルミニウム材に特有のグレー色調
を表現するものである。即ち、塗膜表面に入射される光
線は艶あり塗膜表面と比較して塗膜表面で反射された光
線量の違いによる単なる光沢感の差だけではなく、艶消
し塗膜の場合には入射光線が無秩序に塗膜中に拡散す
る、そのために拡散したその光線が黒色カラークリアー
電着塗膜及び陽極酸化皮膜層で艶あり塗膜よりも無秩序
に透過、反射が行われるので艶あり塗膜とは異なった特
有の色調を有するものと考えられる。The matte black color clear electrodeposition coating film is a matte coating film which is colored in black which is achromatic in itself and which is transparent, and the light rays diffused and transmitted through the coating film are especially the background. By overlapping the light rays reflected or absorbed on the surface of the anodic oxide film, the gray color tone peculiar to the aluminum material is expressed. That is, the light rays incident on the coating surface are not only glossy due to the difference in the amount of light rays reflected on the coating surface compared to the glossy coating surface, but also in the case of a matte coating. Light rays diffuse randomly in the coating film, so the diffused light rays are glossy in the black color clear electrodeposition coating and the anodic oxide coating layer, and are more randomly transmitted and reflected than the coating film. It is considered to have a unique color tone different from.
【００１５】該電着塗膜は、硬化膜厚２０μｍにおいて
光線透過率（測定波長４００ｎｍ）約３０〜７０％の範
囲のものであるのが好ましい。更には、該光線透過率約
３５〜６５％の範囲のものであるのがより好ましい。光
線透過率が約３０％を下回るとアルミニウム素材による
メタリック感がなくなり外観が劣る傾向にあり、一方、
光線透過率が約７０％を上回るとアルミニウム素材によ
るメタリック感が強くなりすぎる傾向にあるために好ま
しくない。また、同一素材に形成した電着塗膜の光線透
過率は、測定波長を４００〜７００ｎｍ域で変化させた
場合でもその光線透過率の変動が少ない方が良く、特に
約±１０％、好ましくは約±５％の範囲が一層好まし
い。通常、光線透過率は膜厚によって異なるが、本発明
においては膜厚に応じて上記した光線透過率の範囲に入
るように調整すれば良い。The electrodeposition coating film preferably has a light transmittance (measurement wavelength 400 nm) of about 30 to 70% in a cured film thickness of 20 μm. More preferably, the light transmittance is in the range of about 35 to 65%. When the light transmittance is less than about 30%, the aluminum material tends to lose the metallic feeling and the appearance tends to be inferior.
If the light transmittance exceeds about 70%, the metallic feeling of the aluminum material tends to be too strong, which is not preferable. Regarding the light transmittance of the electrodeposition coating film formed on the same material, it is better that the fluctuation of the light transmittance is small even when the measurement wavelength is changed in the 400 to 700 nm range, and it is particularly preferably about ± 10%, preferably A range of about ± 5% is more preferable. Usually, the light transmittance varies depending on the film thickness, but in the present invention, the light transmittance may be adjusted so as to fall within the above range of the light transmittance.
【００１６】該電着塗膜は、６０°鏡面光沢度が約３〜
３０％の範囲のものであるのが好ましく、約５〜２５％
の範囲のものであるのがより好ましい。鏡面光沢度が約
３％を下回ると摩擦等により艶消し表面が艶有りとなっ
て塗膜外観が悪くなることがあり、一方、鏡面光沢度が
約３０％を上回ると落着き感、暖かみ感等の質感や高級
感が劣る傾向にあるので好ましくない。The electrodeposition coating film has a 60 ° specular gloss of about 3 to.
It is preferably in the range of 30%, about 5-25%
More preferably, it is in the range of. If the specular gloss is less than about 3%, the matte surface may become glossy due to friction and the appearance of the coating film may deteriorate, while if the specular gloss exceeds about 30%, a feeling of calmness, warmth, etc. It is not preferable because the texture and quality of the product tend to be inferior.
【００１７】上記陽極酸化皮膜を有する陽極酸化アルミ
ニウム素材表面に、艶消し黒色カラークリアー電着塗膜
を被覆する方法としては、例えば、艶消し黒色カラーク
リアーアニオン型電着塗料浴（例えば、固形分約５〜２
０重量％、好ましくは約６〜１５重量％）中で硬化膜厚
が約１０〜３０μｍになるようにアニオン電着塗装を行
い、次いで水洗後、焼付ける（例えば、約１６０〜２０
０℃で約２０〜４０分間）ことにより行うことができる
艶消し黒色カラークリアー電着塗料としては、アルコキ
シシリル基を有する水性アクリル系共重合体樹脂及びメ
ラミン樹脂を艶消し硬化性樹脂成分として含有し、更に
着色剤として黒顔料を配合してなる電着塗料が好まし
い。特に該アクリル系共重合体は樹脂中にアルコキシシ
リル基を有しているため、このものを水分散化させる際
に加水分解してシラノール基を生成し、また該シラノー
ル基同志の縮合によりシロキサン結合を生成して粒子内
ゲル構造を有する微細なディスパーション粒子を形成す
る。そしてこのものを電着塗装、焼付けることによって
得られる塗膜は微細な粗面を形成するので塗膜表面は艶
消し状態となり、更に塗膜中にシロキサン結合によるゲ
ル粒子構造を含みこのゲル粒子構造部分とそれ以外の部
分とを透過する光線の屈折率が異なるために、従来から
艶消し剤として広く使用されている硫酸バリウム微粉末
等の無機質艶消し剤を使用した塗膜では表現できない特
有の色調が形成できたものと考えられる。A method for coating the surface of the anodized aluminum material having the above anodized film with a matte black color clear electrodeposition coating film is, for example, a matte black color clear anion type electrodeposition coating bath (for example, solid content). About 5 to 2
Anion electrodeposition coating is performed so that the cured film thickness is about 10 to 30 μm in 0% by weight, preferably about 6 to 15% by weight, followed by washing with water and baking (eg, about 160 to 20).
The matte black color clear electrodeposition coating composition which can be carried out at 0 ° C. for about 20 to 40 minutes) contains an aqueous acrylic copolymer resin having an alkoxysilyl group and a melamine resin as a matting curable resin component. However, an electrodeposition coating composition containing a black pigment as a colorant is preferable. In particular, since the acrylic copolymer has an alkoxysilyl group in the resin, it hydrolyzes when it is dispersed in water to form a silanol group, and the silanol group is condensed to form a siloxane bond. To form fine dispersion particles having an intra-particle gel structure. The coating film obtained by electrodeposition coating and baking of this product forms a fine rough surface so that the coating film surface becomes matte and the coating film contains a gel particle structure due to a siloxane bond. Since the refractive index of light rays that pass through the structural part and other parts is different, it is not possible to express with a coating film that uses an inorganic matting agent such as barium sulfate fine powder that has been widely used as a matting agent. It is considered that the color tone was formed.
【００１８】上記のアルコキシシリル基を有する水性ア
クリル系共重合体樹脂及びメラミン樹脂を用いた電着塗
料としては、例えば、特公昭６２−２４５１９号公報に
記載されたアルコキシシリル基を側鎖に有する水溶性又
は水分散性のアクリル共重合体とメラミン樹脂からなる
アニオン性電着塗料や、特開平２−２５５８７１号公報
に記載された酸価15-150mgKOH/g、水酸基価30-200mgKOH
/gのアルコキシシリル基を側鎖に有する水分散性ビニル
共重合体及びメラミン樹脂水性分散体を含有してなる水
性艶消し塗料を使用することができる。An electrodeposition coating composition using the above-mentioned aqueous acrylic copolymer resin having an alkoxysilyl group and a melamine resin has, for example, an alkoxysilyl group described in JP-B No. 62-24519 in its side chain. Anionic electrodeposition coating composition comprising a water-soluble or water-dispersible acrylic copolymer and a melamine resin, and an acid value of 15-150 mgKOH / g and a hydroxyl value of 30-200 mgKOH described in JP-A-2-255871.
A water-based matte coating containing a water-dispersible vinyl copolymer having an alkoxysilyl group of / g in its side chain and a melamine resin aqueous dispersion can be used.
【００１９】また、着色剤として使用される黒顔料とし
ては、例えばカーボンブラック、ランプブラック、ボー
ンブラック、グラファイト等が挙げられる。該黒顔料の
中でも、平均粒子径約５ｍμ〜１００ｍμ、好ましくは
約１０ｍμ〜２０ｍμの範囲のカーボンブラックが、着
色力、耐久性等の点から一層好ましい。Examples of black pigments used as colorants include carbon black, lamp black, bone black, graphite and the like. Among the black pigments, carbon black having an average particle size of about 5 mμ to 100 mμ, preferably about 10 mμ to 20 mμ is more preferable from the viewpoint of coloring power and durability.
【００２０】黒顔料の配合割合は着色顔料の着色力、比
重等や要求される隠蔽性等によって異なるが、例えばカ
ーボンブラック顔料においては電着塗料樹脂固形分１０
０重量部に対して、約０．１〜３重量部程度、好ましく
は約０．１〜２重量部の範囲であるのが好適であると考
えられる。The blending ratio of the black pigment varies depending on the coloring power, specific gravity and the like of the color pigment and the required hiding property. For example, in the case of carbon black pigment, the electrodeposition coating resin solid content is 10%.
It is considered that a range of about 0.1 to 3 parts by weight, preferably about 0.1 to 2 parts by weight, is suitable for 0 part by weight.
【００２１】艶消し黒色カラークリアー電着塗料にはア
ルミニウム素材のグレーメタリック感が薄れない程度に
黒顔料以外の着色顔料（例えば、青顔料、緑顔料、赤顔
料、パール顔料等）を配合することができる。また、上
記した顔料以外にも必要に応じて有機溶剤、界面活性
剤、塗面調整剤、充填剤等を配合することができる。The matte black color clear electrodeposition paint may be mixed with a coloring pigment other than a black pigment (for example, blue pigment, green pigment, red pigment, pearl pigment, etc.) to the extent that the gray metallic feeling of the aluminum material is not diminished. it can. In addition to the above-mentioned pigments, an organic solvent, a surfactant, a coating surface adjusting agent, a filler and the like can be blended if necessary.
【００２２】本発明によって得られた着色アルミニウム
材は、特に、サッシ等のアルミニウム建材分野において
有用なものである。The colored aluminum material obtained by the present invention is particularly useful in the field of aluminum building materials such as sashes.
【００２３】[0023]
【実施例】本発明の実施例及び比較例を挙げて、更に具
体的に説明する。但し、本発明は提供した実施例に限定
されるものではない。EXAMPLES The present invention will be described more specifically with reference to Examples and Comparative Examples of the present invention. However, the invention is not limited to the examples provided.
【００２４】実施例１ 電解着色していない陽極酸化皮膜厚約１０μｍのアルミ
ニウム素材（色調は明度Ｌ*＝９０、色相ａ*＝−１．
２、彩度ｂ*＝−０．２である、形状は長さ100mm×幅10
mm×高さ2000mmのホロー材である）を、艶消しアニオン
電着塗料（熱硬化性樹脂成分としてメトキシシリル基を
側鎖に含有するアクリル系樹脂（酸価約６０mgKOH/g、
水酸基価約７０mgKOH/g、数平均分子量約２万）７０重
量％にメラミン樹脂架橋剤（「サイメル３０３」、三井
東圧株式会社製、商品名）３０重量％を配合したもの
で、更に顔料成分としてカーボンブラック顔料を電着塗
料樹脂固形分１００重量部当り約１．５重量部を配合し
分散混合したものをトリエチルアミンで中和し水に分散
させたもの）を固形分約７重量％に希釈した塗料を電着
浴とし、該電着浴中で硬化膜厚が約２０μｍになるよう
に電着塗装を行い、水洗後、１７０℃で３０分間焼付け
て実施例１の着色アルミニウム材を得た。Example 1 An aluminum material having an anodized film thickness of about 10 μm which was not electrolytically colored (color tone: lightness L * = 90, hue a * = − 1.
2. Saturation b * =-0.2, the shape is 100mm long x 10 wide
mm x 2000 mm height hollow material, matte anion electrodeposition coating (acrylic resin containing methoxysilyl group in the side chain as a thermosetting resin component (acid value about 60 mgKOH / g,
70% by weight of hydroxyl value about 70 mgKOH / g, number average molecular weight of about 20,000) and 30% by weight of a melamine resin cross-linking agent ("Cymel 303", Mitsui Toatsu Co., Ltd., trade name) are mixed. As a carbon black pigment, about 1.5 parts by weight per 100 parts by weight of the solid content of electrodeposition coating resin is mixed and dispersed, and the mixture is neutralized with triethylamine and dispersed in water) to dilute the solid content to about 7% by weight. The obtained coating material was used as an electrodeposition bath, and electrodeposition coating was performed in the electrodeposition bath so that the cured film thickness was about 20 μm, followed by washing with water and baking at 170 ° C. for 30 minutes to obtain the colored aluminum material of Example 1. .
【００２５】得られた着色アルミニウム材は、６０°鏡
面光沢度約１０％で淡薄色グレー色調の立体感、メタリ
ック感、落着き感、暖かみ感等の質感や高級感のある優
れたものであった。電着塗膜の光線透過率（測定波長４
００ｎｍ）は約４５％であった。また、該電着塗膜の光
線透過率の測定波長を４００〜７００ｎｍの可視光線域
で測定した結果、約４５±２％で変動は少なく良好であ
った。The colored aluminum material thus obtained was excellent in that it had a specular gloss of 60 ° and a light gray color tone of 3%, a metallic feeling, a calm feeling, a warm feeling, etc. and a high-class feeling. . Light transmittance of electrodeposition coating (measurement wavelength 4
00 nm) was about 45%. The light transmittance of the electrodeposition coating film was measured in the visible light region of 400 to 700 nm, and the result was about 45 ± 2%, which was good with little fluctuation.
【００２６】実施例２ 実施例１において、アルミニウム素材として薄色ブラウ
ンアルミニウム材（陽極酸化皮膜厚約１０μｍのアルミ
ニウム素材を硫酸ニッケル、硫酸錫の電解浴中で電解着
色をおこなったもの、色調は明度Ｌ*＝７５、色相ａ*＝
０．５、彩度ｂ*＝５．０である、形状は長さ100mm×幅
10mm×高さ2000mmのホロー材である）を使用した以外は
実施例１と同様にして、実施例２の着色アルミニウム材
を得た。Example 2 In Example 1, as the aluminum material, a light brown aluminum material (an aluminum material having an anodized film thickness of about 10 μm was electrolytically colored in an electrolytic bath of nickel sulfate and tin sulfate, the color tone was lightness. L * = 75, hue a * =
0.5, saturation b * = 5.0, shape is 100 mm length x width
A colored aluminum material of Example 2 was obtained in the same manner as in Example 1 except that a hollow material having a size of 10 mm and a height of 2000 mm was used.
【００２７】得られた着色アルミニウム材は、６０°鏡
面光沢度約１０％で薄色グレー色調の立体感、メタリッ
ク感、落着き感、暖かみ感等の質感や高級感のある優れ
たものであった。電着塗膜の光線透過率（測定波長４０
０ｎｍ）は約４５％であった。また、該電着塗膜の光線
透過率の測定波長を４００〜７００ｎｍの可視光線域で
測定した結果、約４５±２％で変動は少なく良好であっ
た。The colored aluminum material thus obtained was excellent in that it had a specular gloss of 60 ° and a glossiness of about 10%, a light gray tone, a three-dimensional effect, a metallic feeling, a calm feeling, a warm feeling, and a high-class feeling. . Light transmittance of electrodeposition coating (measurement wavelength 40
0 nm) was about 45%. The light transmittance of the electrodeposition coating film was measured in the visible light region of 400 to 700 nm, and the result was about 45 ± 2%, which was good with little fluctuation.
【００２８】実施例３ 実施例１において、アルミニウム素材として濃色ブラウ
ンアルミニウム材（陽極酸化皮膜厚約１０μｍのアルミ
ニウム素材を硫酸ニッケル、硫酸錫の電解浴中で電解着
色をおこなったもの、色調は明度Ｌ*＝３５、色相ａ*＝
５．０、彩度ｂ*＝９．５である、形状は長さ100mm×幅
10mm×高さ2000mmのホロー材である）を使用した以外は
実施例１と同様にして、実施例３の着色アルミニウム材
を製造した。得られた着色アルミニウム材は、６０°鏡
面光沢度約１５％で濃色グレー色調の立体感、メタリッ
ク感、落着き感、暖かみ感等の質感や高級感のある優れ
たものであった。電着塗膜の光線透過率（測定波長４０
０ｎｍ）は約４５％であった。また、該電着塗膜の光線
透過率の測定波長を４００〜７００ｎｍの可視光線域で
測定した結果、約４５±２％で変動は少なく良好であっ
た。Example 3 In Example 1, a dark brown aluminum material as an aluminum material (an aluminum material having an anodized film thickness of about 10 μm was electrolytically colored in an electrolytic bath of nickel sulfate and tin sulfate, and the color tone was lightness. L * = 35, hue a * =
5.0, saturation b * = 9.5, the shape is 100 mm in length x width
A colored aluminum material of Example 3 was manufactured in the same manner as in Example 1 except that a hollow material having a size of 10 mm and a height of 2000 mm was used. The colored aluminum material thus obtained was excellent in that it had a 60 ° specular gloss of about 15%, a deep gray tone, a three-dimensional effect, a metallic feeling, a calm feeling, a warm feeling, and a high-grade feeling. Light transmittance of electrodeposition coating (measurement wavelength 40
0 nm) was about 45%. The light transmittance of the electrodeposition coating film was measured in the visible light region of 400 to 700 nm, and the result was about 45 ± 2%, which was good with little fluctuation.
【００２９】比較例１ 実施例２において艶消しアニオン電着塗料としてカーボ
ンブラック顔料を全く配合しない以外は実施例２と同様
のものを使用して電着塗料を製造し、そして実施例２と
同様の方法で電着塗装し比較例１の着色アルミニウム材
を得た。得られた着色アルミニウム材は、電解着色皮膜
による色調だけで従来と同様に、立体感、暖かみ感及び
高級感のない通常のものであった。また、メタリック感
が強すぎて冷たい感じを与えるものであった。Comparative Example 1 An electrodeposition coating composition was prepared in the same manner as in Example 2 except that no carbon black pigment was blended as the matte anion electrodeposition coating composition, and the same as Example 2. The colored aluminum material of Comparative Example 1 was obtained by electrodeposition coating by the method described in 1. The obtained colored aluminum material was a normal one having no three-dimensional effect, warmth feeling and high-class feeling as in the past, only in the color tone of the electrolytically colored film. Moreover, the metallic feeling was too strong and gave a cold feeling.
【００３０】[0030]
【発明の効果】本発明によれば、陽極酸化アルミニウム
素材が有する陽極酸化皮膜の色調と艶消し黒色カラーク
リアー電着塗膜による色調とが重なりあってお互いに単
独膜によっては得られない特有のグレー色調感があり、
かつアルミニウム素材のメタリック感を失うことがな
く、当該素材に立体感、メタリック感、落着き感、暖か
み感等の質感や高級感が付与できるといった顕著な効果
が発揮されるものである。また、調色が簡単で明度の高
いグレー塗膜を有するものである。更に、本発明によっ
て得られた着色アルミニウム材は、チタン白及びカーボ
ンブラック等の着色顔料を使用してグレー色調に仕上げ
たものと比べて耐候性が著しく優れるものである。According to the present invention, the color tone of the anodic oxide film of the anodized aluminum material and the color tone of the matte black color clear electrodeposition coating film are overlapped with each other, and thus they cannot be obtained by independent films. There is a gray color tone,
Moreover, the metallic effect of the aluminum material is not lost, and the material can exert a remarkable effect such as giving a three-dimensional effect, a metallic feeling, a calm feeling, a feeling of warmth and the like and a high-class feeling. Further, it has a gray coating film which is easy in color adjustment and has high brightness. Furthermore, the colored aluminum material obtained according to the present invention has remarkably excellent weather resistance as compared with a colored aluminum material finished with a gray color tone by using coloring pigments such as titanium white and carbon black.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 広瀬 光治 神奈川県川崎市中原区中丸子135番地 不 二サッシ株式会社内 (72)発明者 綾 康博 神奈川県川崎市中原区中丸子135番地 不 二サッシ株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Koji Hirose, 135 Nakamaruko, Nakahara-ku, Kawasaki City, Kanagawa Fuji Sash Co., Ltd. Within
Claims (5)
を有する陽極酸化アルミニウム素材に、艶消し黒色カラ
ークリアー電着塗膜を被覆させてなることを特徴とする
着色アルミニウム材。1. A colored aluminum material comprising an anodized aluminum material having an anodized film which is or is not electrolytically colored and coated with a matte black color clear electrodeposition coating film.
８７２９のＬ*ａ*ｂ*表色系による物体色においてＬ*＝
２５〜９５、ａ*＝−２〜６、ｂ*＝−１〜１８の範囲の
ものである請求項１に記載の着色アルミニウム材。2. The color tone of the anodized film is JIS Z
8729 of L * a * b * color system in the object color L * =
The colored aluminum material according to claim 1, which has a range of 25 to 95, a * = -2 to 6, and b * = -1 to 18.
て光線透過率（測定波長４００ｎｍ）３０〜７０％の範
囲のものである請求項１に記載の着色アルミニウム材。3. The colored aluminum material according to claim 1, wherein the electrodeposition coating film has a light transmittance (measurement wavelength of 400 nm) of 30 to 70% at a cured film thickness of 20 μm.
０％の範囲のものである請求項１に記載の着色アルミニ
ウム材。4. The electrodeposition coating film has a 60 ° specular gloss of 3 to 3
The colored aluminum material according to claim 1, which is in a range of 0%.
る水性アクリル系共重合体及びメラミン樹脂を硬化性樹
脂成分として含有するアニオン電着塗料で形成されたも
のである請求項１に記載の着色アルミニウム材。5. The anionic electrodeposition coating composition according to claim 1, wherein the electrodeposition coating film is formed by an anionic electrodeposition coating composition containing an aqueous acrylic copolymer having an alkoxysilyl group and a melamine resin as a curable resin component. Colored aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08623096A JP3205792B2 (en) | 1995-05-19 | 1996-04-09 | Colored aluminum material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12192195 | 1995-05-19 | ||
| JP7-121921 | 1995-05-19 | ||
| JP08623096A JP3205792B2 (en) | 1995-05-19 | 1996-04-09 | Colored aluminum material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0941194A true JPH0941194A (en) | 1997-02-10 |
| JP3205792B2 JP3205792B2 (en) | 2001-09-04 |
Family
ID=26427386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08623096A Expired - Lifetime JP3205792B2 (en) | 1995-05-19 | 1996-04-09 | Colored aluminum material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3205792B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4624637A4 (en) * | 2023-03-06 | 2026-04-29 | Uacj Corp | METAL ELEMENT AND METHOD FOR PRODUCING IT |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6224519B2 (en) | 2013-05-20 | 2017-11-01 | 花王株式会社 | Oil composition |
-
1996
- 1996-04-09 JP JP08623096A patent/JP3205792B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4624637A4 (en) * | 2023-03-06 | 2026-04-29 | Uacj Corp | METAL ELEMENT AND METHOD FOR PRODUCING IT |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3205792B2 (en) | 2001-09-04 |
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