JPS63210296A - Colored aluminum or aluminum alloy material and production thereof - Google Patents
Colored aluminum or aluminum alloy material and production thereofInfo
- Publication number
- JPS63210296A JPS63210296A JP4498987A JP4498987A JPS63210296A JP S63210296 A JPS63210296 A JP S63210296A JP 4498987 A JP4498987 A JP 4498987A JP 4498987 A JP4498987 A JP 4498987A JP S63210296 A JPS63210296 A JP S63210296A
- Authority
- JP
- Japan
- Prior art keywords
- film
- colored
- aluminum
- paint
- satin
- 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
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 31
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000003973 paint Substances 0.000 claims abstract description 37
- 238000004070 electrodeposition Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 39
- 238000004040 coloring Methods 0.000 claims description 31
- 238000011282 treatment Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 13
- 238000007743 anodising Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- 239000010407 anodic oxide Substances 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000010422 painting Methods 0.000 abstract description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 3
- 238000011109 contamination Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 35
- 229910000906 Bronze Inorganic materials 0.000 description 14
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 239000010974 bronze Substances 0.000 description 14
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 14
- 230000000694 effects Effects 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000004925 Acrylic resin Substances 0.000 description 7
- 229920000178 Acrylic resin Polymers 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 7
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 7
- 235000019341 magnesium sulphate Nutrition 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 6
- 239000004327 boric acid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000011975 tartaric acid Substances 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 5
- 239000004640 Melamine resin Substances 0.000 description 5
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 5
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 5
- 235000002906 tartaric acid Nutrition 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 2
- 229940044175 cobalt sulfate Drugs 0.000 description 2
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 1
- FYZUENZXIZCLAZ-UHFFFAOYSA-N 2-methylhept-2-enoic acid Chemical compound CCCCC=C(C)C(O)=O FYZUENZXIZCLAZ-UHFFFAOYSA-N 0.000 description 1
- UIERETOOQGIECD-UHFFFAOYSA-N Angelic acid Natural products CC=C(C)C(O)=O UIERETOOQGIECD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- RCIVOBGSMSSVTR-UHFFFAOYSA-L stannous sulfate Chemical compound [SnH2+2].[O-]S([O-])(=O)=O RCIVOBGSMSSVTR-UHFFFAOYSA-L 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- UIERETOOQGIECD-ONEGZZNKSA-N tiglic acid Chemical compound C\C=C(/C)C(O)=O UIERETOOQGIECD-ONEGZZNKSA-N 0.000 description 1
- 229910000375 tin(II) sulfate Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/20—Electrolytic after-treatment
- C25D11/22—Electrolytic after-treatment for colouring layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、建材、家具等として利用され、梨地状の無機
質的な質感を持つ独特な色調を有し、かつ耐汚染性等に
優れた着色アルミニウム又はアルミニウム合金材及びそ
の製造方法に関する。[Detailed description of the invention] [Field of industrial application] The present invention is used as building materials, furniture, etc., and has a unique color tone with a satin-like inorganic texture and excellent stain resistance. The present invention relates to a colored aluminum or aluminum alloy material and a method for producing the same.
従来、着色アルミニウム又はアルミニウム合金材を形成
する方法としては、アルミニウム又はアルミニウム合金
基材に陽極酸化処理を施し、次いでＮｉ＋Ｃｏ、Ｓｎ、
Ｃｕ等を主成分とする金属塩水溶液を用いて電解着色処
理を施し、陽極酸化皮膜の微細孔に金属粒子を析出させ
、着色した後、水溶性アクリル樹脂塗料浴を用いて陽極
電着塗装を行なって、前記着色皮膜上に艷有り又は艶消
しの透明塗膜を形成する方法が一般に採用されている。Conventionally, as a method for forming colored aluminum or aluminum alloy materials, an aluminum or aluminum alloy base material is anodized, and then Ni+Co, Sn,
Electrolytic coloring is performed using an aqueous metal salt solution containing Cu as a main component, and metal particles are precipitated into the micropores of the anodic oxide film. After coloring, anodic electrodeposition is applied using a water-soluble acrylic resin paint bath. Generally, a method is employed in which a transparent coating film with a matte finish is formed on the colored film.
しかしながら、従来のこのような着色陽極酸化皮膜と艷
有り又は艶消し樹脂塗膜との複合皮膜は、冷たい軽金属
的質感力回１周された外観を呈し、暖みのある無機質的
な質感を与えることができない。However, conventional composite coatings of colored anodized coatings and coated or matte resin coatings have a cold, light metallic texture and a rounded appearance, giving them a warm, inorganic texture. I can't.
また、特に従来法による艶消しの複合皮膜は、しみ、指
紋、加工時の油分等が付着し易く、しかも清掃しても除
去し難いものである上、ダイスマークや圧延マーク等が
目立ち易い傾向があり、外観不良が発生し易いなど、品
質性能面においても問題が多い。In addition, matte composite films made using conventional methods are particularly prone to stains, fingerprints, oils from processing, etc., which are difficult to remove even when cleaned, and die marks, rolling marks, etc. tend to be noticeable. There are many problems in terms of quality and performance, such as poor appearance.
なお従来、顔料入り塗膜を利用して着色アルミニウム又
はアルミニウム合金材を得ることも提案されている（特
公昭５６−３４３９号公報）が、このような方法は工業
的には殆んど利用されていないのが現状である。It has also been proposed to obtain colored aluminum or aluminum alloy materials using pigmented coatings (Japanese Patent Publication No. 56-3439), but this method has hardly been used industrially. The current situation is that this is not the case.
本発明は上記事情に鑑みなされたもので、陽極酸化皮膜
の電解着色処理膜に対し従来にない優れた特性の半透明
梨地状乳白色塗膜を複合化することにより、これら下地
の電解着色皮膜と塗膜との独特の複合色調を有し、かつ
暖みのある無機質的質感を与え、しかも耐汚染性に優れ
、素地のダイスマークや圧延マークが隠蔽された着色ア
ルミニウム又はアルミニウム合金材及びその製造方法を
提供することを目的とする。The present invention has been made in view of the above circumstances, and by combining a translucent satin-like milky white coating with unprecedented characteristics to the electrolytically colored anodized coating, it is possible to combine the electrolytically colored coating with the underlying electrolytically colored coating. Colored aluminum or aluminum alloy material that has a unique composite color tone with the paint film, gives a warm inorganic texture, has excellent stain resistance, and hides die marks and rolling marks on the base material, and its production. The purpose is to provide a method.
〔問題点を解決するための手段及び作用〕本発明者らは
、上記目的を達成するため鋭意検討を行った結果、アル
ミニウム又はアルミニウム合金基材に陽極酸化処理、次
いで電解着色処理を施すことによって得られた電解着色
皮膜に対し、水溶性樹脂分に水難溶性もしくは水不溶性
樹脂分を添加した陽極電着塗装用塗料浴を用いて陽極電
着塗装を行なった場合、」二足電解着色皮膜上に細かい
地紋状の１〜３０μｍ程度の凹凸が均一に無数に形成さ
れた半透明の梨地状乳白色塗膜が得られ、この塗膜と下
地の電解着色皮膜との複合効果により下地の着色皮膜の
色調と異なる独特の色調を有すると共に、暖みのある無
機質的質感を有する複合皮膜が得られ、しかもこの複合
皮膜はしみ、指紋、加工時の油分等が付着し難く、また
付着しても容易に清掃除去し得、耐汚染性、汚垢除去性
に優れ、かつアルミニウム又はアルミニウム合金のダイ
スマークや圧延マーク等を消す効果を有すること、特に
かかる効果は半透明梨地状乳白色塗膜の６０°鏡面光沢
度が１０％以下の場合に優れて発揮されることを知見し
、本発明をなすに至ったものである。[Means and effects for solving the problem] As a result of intensive studies to achieve the above object, the present inventors found that by subjecting an aluminum or aluminum alloy base material to anodizing treatment and then electrolytic coloring treatment. When the obtained electrolytically colored film is subjected to anodic electrodeposition using a paint bath for anodic electrodeposition in which a poorly water-soluble or water-insoluble resin is added to the water-soluble resin, the result is that the electrolytically colored film has two legs. A translucent, satin-like, milky-white paint film is obtained, in which numerous irregularities of approximately 1 to 30 μm in the form of a fine ground pattern are evenly formed. A composite film that has a unique color tone that is different from the original color tone and a warm, inorganic texture can be obtained. Moreover, this composite film is difficult to attract stains, fingerprints, oils from processing, etc., and even if it does, it is easy to adhere to it. It has excellent stain resistance and dirt removability, and has the effect of erasing die marks, rolling marks, etc. of aluminum or aluminum alloy. In particular, this effect is effective when cleaning a translucent satin-like milky white coating film at 60°. It was discovered that the specular gloss is excellent when the degree of gloss is 10% or less, and the present invention was developed based on this finding.
従って、本発明は、アルミニウム又はアルミニウム合金
基材の表面に着色皮膜が形成されていると共に、この着
色皮膜上に６０°鏡面光沢度が１０％以下の半透明の梨
地状乳白色塗膜が形成されてなることを特徴とする着色
アルミニウム又はアルミニウム合金材、並びにアルミニ
ウム又はアルミニウム合金基材に陽極酸化処理を施し、
次いで電解着色処理を施した後、水溶性樹脂分に水＠溶
性もしくは水不溶性樹脂分が添加されてなる陽極電着塗
装用塗料浴を用いて陽極電着塗装を施して、上記電解着
色処理による着色皮膜上に半透明の梨地状乳白色塗膜を
形成することを特徴とする着色アルミニウム又はアルミ
ニウム合金材の製造方法を提イハするものである。Therefore, in the present invention, a colored film is formed on the surface of an aluminum or aluminum alloy base material, and a translucent satin-like milky white coating having a 60° specular gloss of 10% or less is formed on this colored film. colored aluminum or aluminum alloy material, and aluminum or aluminum alloy base material subjected to anodizing treatment,
Next, after performing electrolytic coloring treatment, anodic electrodeposition coating is performed using a paint bath for anodic electrodeposition coating in which a water @ soluble or water-insoluble resin component is added to a water-soluble resin component, and the above-mentioned electrolytic coloring treatment is performed. The present invention proposes a method for producing a colored aluminum or aluminum alloy material, which is characterized by forming a translucent matte-like milky white coating on a colored coating.
以下、本発明につき更に詳しく説明する。The present invention will be explained in more detail below.
本発明に係る着色アルミニウム又はアルミニウム合金材
の製造方法は、まずアルミニウム又はアルミニうム合金
基材に陽極酸化処理を施し、陽極酸化皮膜を形成するも
のである。In the method for producing colored aluminum or aluminum alloy material according to the present invention, first, an aluminum or aluminum alloy base material is anodized to form an anodized film.
この場合、アルミニウム、アルミニウム合金基材として
は、用途等に応じて選択され、また陽極酸化処理は常法
に従って行なうことができるが、陽極酸化皮膜は耐食性
の観点から９μｍ以上形成することが好ましい。In this case, the aluminum or aluminum alloy base material is selected depending on the intended use, and the anodic oxidation treatment can be carried out according to a conventional method, but from the viewpoint of corrosion resistance, it is preferable to form an anodic oxide film with a thickness of 9 μm or more.
次に、本発明の方法においては、この陽極酸化皮膜に対
し電解着色処理を施し、該陽極酸化皮膜を着色する。Next, in the method of the present invention, this anodic oxide film is subjected to electrolytic coloring treatment to color the anodic oxide film.
この電解着色処理は常法によって行なうことができ、例
えばＮｉ、Ｃｏ、Ｓｎ、Ｃｕ等を主成分とするる金属塩
水溶液中で陽極酸化皮膜材と対極との間に交流、直流若
しくはパルス波形等の電流を用いて陽極酸化皮膜に電解
着色処理を施す方法を採用し得る。This electrolytic coloring treatment can be carried out by a conventional method, for example, by applying alternating current, direct current, or pulse waveform between the anodized film material and the counter electrode in a metal salt aqueous solution containing Ni, Co, Sn, Cu, etc. as the main components. A method may be adopted in which the anodic oxide film is subjected to electrolytic coloring using a current of .
このような電解着色処理液及び処理条件を例示すると下
記の通りである。Examples of such an electrolytic coloring treatment solution and treatment conditions are as follows.
（１）硫酸ニッケル １００ｇ／βホウ酸
４５ 〃
硫酸マグネシウム １４０ 〃
酒石酸 ３ 〃
ｐＨ５，０／／
電解着色条件
ＡＣ１５〜１７Ｖ
通電時間 ２〜２０分
対極 ニッケル板
浴温 ２０℃
着色膜 ゴールド色乃至ブラック色（２）硫酸コバ
ルト ＬＯＯｇ／（！ホウ酸 ４０
〃
酒石酸 １０ 〃
硫酸マグネシウム １７５ 〃
ｐＨ４，３
電解着色条件
ＡＣ１９Ｖ
通電時間 ２０分
対極 ステンレススチール
浴温 ２０℃
着色膜 ？ｌＡ黒色
（３）硫酸銅 ３５ｇ／β硫酸マグネシ
ウム ２０ 〃
硫酸 ５〜６ 〃
ｐＨ１，３
電解着色条件
対極 ステンレススチール
浴温 ２０℃
着色膜 濃黒色
（４）硫酸第１錫 ５ｇ／Ｉｔ硫酸
５ 〃
硫酸アンモニウム ５０ 〃
フェノールスルフォン酸１０ 〃
クエン酸 １５ 〃ｐＨ１，０
電解着色条件
ＡＣ１５Ｖ
通電時間 １５分
対極 ステンレススチール
浴温 ２０℃
電解着色処理液及び条件は勿論上記の組成及び条件に限
定されるものではなく、また交流法による以外に被処理
物を陰極とし、ニッケル等の対極板を陽極とする直流電
解着色法等を採用することができ、その着色膜も処理法
９条件等を変えることにより上記のもの以外に種々の色
調の着色膜を得ることができる。(1) Nickel sulfate 100g/β boric acid
45 〃 Magnesium sulfate 140 〃 Tartaric acid 3 〃 pH 5,0// Electrolytic coloring conditions AC15-17V Current application time 2-20 minutes Counter electrode Nickel plate Bath temperature 20℃ Colored film Gold color to black color (2) Cobalt sulfate LOOg/(!Ho acid 40
〃 Tartaric acid 10 〃 Magnesium sulfate 175 〃 pH 4.3 Electrolytic coloring conditions AC19V Current application time 20 minutes Counter electrode Stainless steel bath temperature 20℃ Colored film ? 1A black (3) Copper sulfate 35g/β magnesium sulfate 20 〃 Sulfuric acid 5-6 〃 pH 1,3 Electrolytic coloring conditions Counter electrode Stainless steel bath temperature 20℃ Colored film Dark black (4) Stannous sulfate 5g/It sulfuric acid
5 Ammonium sulfate 50 phenolsulfonic acid 10 Citric acid 15 pH 1.0 Electrolytic coloring conditions AC15V Current application time 15 minutes Counter electrode Stainless steel bath temperature 20°C The electrolytic coloring solution and conditions are of course limited to the above composition and conditions. In addition to the AC method, it is also possible to use a DC electrolytic coloring method in which the object to be treated is used as a cathode and a counter electrode plate made of nickel or the like is used as an anode. Colored films with various tones other than those described above can be obtained.
なお、着色処理を施した後は十分水洗し、次いで８０°
Ｃ以上の熱湯水中で湯洗処理を行なうことが好ましい。In addition, after applying the coloring process, wash thoroughly with water and then heat at 80°.
It is preferable to carry out the hot water washing treatment in hot water of C or higher.
本発明方法においては、このようにして形成された電解
着色処理膜に半透明の梨地状乳白色の塗膜形成が可能な
陽極電着塗装用塗料浴を用いて陽極電着塗装を施す。In the method of the present invention, the electrolytically colored film thus formed is subjected to anodic electrodeposition using a paint bath for anodic electrodeposition that is capable of forming a translucent satin-like milky white coating.
ここで、この陽極電着塗装用塗料浴は、水溶性樹脂分に
これと相溶性の異なる水難溶性もしくは水不溶性樹脂分
を添加してなるもので、例えば通常の水溶性アクリルメ
ラミン樹脂に対して相溶性の異なるアクリル樹脂を配合
したもの、特に分子量２万〜５万程度のメチルメタアク
リル酸、ブチルメタアクリル酸などを重合してなるアク
リル樹脂と分子量３５０〜１０００程度の１及び２量体
に適宜３量体を添加して構成したメラミン樹脂とからな
る水溶性アクリルメラミン樹脂に分子量を１０万〜１５
万とした水難溶性アクリルメラミン樹脂を添加した変性
アクリル樹脂塗料浴が使用し得る。Here, this paint bath for anodic electrodeposition is made by adding a poorly water-soluble or water-insoluble resin component that is different in compatibility to a water-soluble resin component, for example, for ordinary water-soluble acrylic melamine resin. Compounds of acrylic resins with different compatibility, especially acrylic resins made by polymerizing methyl methacrylic acid, butyl methacrylic acid, etc. with molecular weights of about 20,000 to 50,000, and mono and dimers with molecular weights of about 350 to 1,000. A water-soluble acrylic melamine resin with a molecular weight of 100,000 to 15
A modified acrylic resin paint bath to which a slightly water-soluble acrylic melamine resin has been added may be used.
この場合、水難溶性もしくは水不溶性樹脂分の添加量は
、水溶性樹脂分１００重量部に対し１〜３０重量部とす
ることができる。また、全樹脂分濃度は浴全体の８〜１
２％程度とすることが好適である。In this case, the amount of the poorly water-soluble or water-insoluble resin added can be 1 to 30 parts by weight per 100 parts by weight of the water-soluble resin. In addition, the total resin concentration is 8 to 1% of the entire bath.
It is preferable to set it to about 2%.
また、陽極電着塗装条件は、通常の処理条件と同様であ
り、被処理物を陽極とし、ステンレススチール等を陰極
として１２０〜２５０Ｖ、より好ましくは１４０〜１８
０Ｖ程度の直流電圧を印加し、浴温１９〜２１℃にて１
〜１０分、より好ましくは３〜４分程度の処理時間とす
ることができるが、最良な梨地状乳白色塗膜を形成する
点からは１５０Ｖ程度で３〜４分間の通電時間がよい。The conditions for anodic electrodeposition coating are the same as those for normal treatment, with the object being treated as the anode and stainless steel or the like as the cathode at 120 to 250 V, more preferably 140 to 18 V.
Applying a DC voltage of about 0 V, 1 at a bath temperature of 19 to 21°C.
The treatment time can be about 10 minutes, more preferably about 3 to 4 minutes, but in order to form the best satin-like milky white coating, a current application time of about 150 V and 3 to 4 minutes is preferable.
更に、この電着塗装においては、得られる半透明梨地状
乳白色塗膜は、６０°鏡面光沢廣として１０％以下、よ
り好ましくは２〜５％となる塗膜を形成することが好ま
しく、また塗膜厚さは７μｍ以上とすることが好ましい
。Furthermore, in this electrodeposition coating, it is preferable that the resulting translucent satin-like milky white coating form a coating film having a 60° specular gloss width of 10% or less, more preferably 2 to 5%. The film thickness is preferably 7 μm or more.
電着塗装処理後は、過剰に付着した塗料骨を水洗除去し
、次いで風乾、乾燥硬化するもので、その条件としては
例えば常温で５〜１０分間程度風乾し、１５０〜２００
℃程度の温度で３０〜４０分間焼付は硬化する条件を採
用することができ、最適条件は１８０℃、３０分間程度
の焼付けがよい。After the electrodeposition coating process, excess paint bones are washed away with water, then air-dried and dried to harden.
Baking for 30 to 40 minutes at a temperature of about .degree. C. can be used to harden the material, and the optimum condition is baking at 180.degree. C. for about 30 minutes.
このような方法により形成した梨地状乳白色塗膜は、塗
膜自体は半透明で乳白色を呈し、曇りガラス的質感と外
観を有し、塗膜表面部は微細な地紋状の凹凸が無数に形
成されているものである。The satin-like milky white paint film formed by this method is translucent and milky white, and has the texture and appearance of frosted glass, and the surface of the paint film has countless irregularities in the form of a fine tint pattern. This is what is being done.
即ち、本塗膜は参考図１に示したような１〜３０μｍ程
度、特に５〜１５μｍ程度の微細な凹凸が均一に無数形
成されているもので、従来の艶消し塗膜が参考図２に示
したように大きな凹凸がかなりの間隔（５〜７０μｍ程
度）で形成された大きなうねりを持っているものとは相
違する。なお、参考図１は本発明による半透明梨地状乳
白色塗膜、参考図２は従来の透明艶消し塗膜の５０倍の
顕微鏡写真であり、図中の１目盛は３．３μｍである。In other words, this coating film is uniformly formed with numerous fine irregularities of about 1 to 30 μm, especially about 5 to 15 μm, as shown in Reference Figure 1, whereas the conventional matte coating is shown in Reference Figure 2. As shown, this is different from the one having large undulations in which large irregularities are formed at considerable intervals (about 5 to 70 μm). Note that Reference Figure 1 is a micrograph of a translucent satin-like milky white coating film according to the present invention, and Reference Figure 2 is a 50 times magnified micrograph of a conventional transparent matte coating film, and one scale in the figure is 3.3 μm.
また、本発明の塗膜は、しみ、指紋、機械油等の非付着
性及び清掃除去性に良好である上、アルミニウム又はア
ルミニウム合金基材のダイスマークや圧延マーク等の隠
蔽性に優れているという特性を有し、特に６０°鏡面光
沢度が１０％以下、より好ましくは２〜５％の塗膜がか
かる特性に優れているものである。In addition, the coating film of the present invention has good non-adherence and cleaning removability for stains, fingerprints, machine oil, etc., and is also excellent in hiding die marks, rolling marks, etc. on aluminum or aluminum alloy substrates. In particular, a coating film with a 60° specular gloss of 10% or less, more preferably 2 to 5%, is excellent in this property.
而して、上述した処理により、電解着色皮膜上に半透明
の梨地状乳白色塗膜が積層、一体化された複合皮膜が形
成されるもので、下層の着色皮膜と上層の塗膜との複合
効果により、梨地状で暖みのある無機質的質感を持ち、
着色皮膜と異なった独特な色調の複合皮膜が得られる。Through the above-mentioned treatment, a composite film is formed in which a translucent matte-like milky white paint film is laminated and integrated on the electrolytically colored film, and the composite film is a composite film of the lower layer colored film and the upper layer paint film. The effect has a satin-like, warm, inorganic texture,
A composite film with a unique color tone different from colored films can be obtained.
即ち、本発明のアルミニウム又はアルミニウム合金基材
に形成された複合皮膜は、下層の着色皮膜自体では軽金
属的質感を有するが、上層の半透明梨地状乳白色塗膜に
半ば隠蔽され、両膜の複合化により暖みのある無機質的
質感の独特な色調が得られ、下記のように下地の電解着
色皮膜の色調が変化する。That is, the composite film formed on the aluminum or aluminum alloy base material of the present invention has a light metallic texture in the lower layer colored film itself, but it is partially hidden by the upper layer translucent satin-like milky white paint film, and the composite film of both films has a light metallic texture. As a result, a unique color tone with a warm, inorganic texture is obtained, and the color tone of the underlying electrolytically colored film changes as shown below.
電解着色皮膜 本発明複合皮膜ゴールド □
−明るい灰黄色
ライトブロンズ□→ カーキ色
ブロンズ □→ バーンアンバー色
ダークブロンズ□→ 焦茶色
ブラック □−グレーブランク色
この場合、下地の電解着色皮膜の色調が濃色である程、
暖みのある無機質的質感を有するという効果が発揮され
、また６０°鏡面光沢度で１０％以下、より好ましくは
２〜５％の半透明梨地状乳白色塗膜を形成することによ
り、かかる効果がより強調される。Electrolytically colored film Composite film of the present invention Gold □
- Bright gray-yellow light bronze □ → Khaki bronze □ → Burnt umber dark bronze □ → Dark brown black □ - Gray blank color In this case, the darker the color of the underlying electrolytically colored film, the more
The effect of having a warm inorganic texture is exhibited, and this effect is achieved by forming a translucent satin-like milky white coating with a 60° specular gloss of 10% or less, more preferably 2 to 5%. more emphasized.
このような効果は、上述した半透明梨地状乳白色塗膜自
体の特質に依存しているもので、従来法において電解着
色皮膜上に形成される塗膜は、艷有り、艶消しのいずれ
にも完全な透明性を持ち、下地の着色皮膜の質感をむし
ろ生かすものであり、従ってこのような塗膜を着色皮膜
上に複合しても、下地の着色皮膜の色調及び質感がその
まま再現されるのみであり、色調そのものは何ら変化し
ないものであるが、半透明梨地状乳白色塗膜、特に６０
°鏡面光沢度で１０％以下、より好ましくは２〜５％の
塗膜の形成により、冷たい軽金属質感の着色皮膜が暖か
な無機質質感に質感変化し、かつ着色皮膜の色調が上述
したように変化するものである。Such an effect depends on the characteristics of the translucent satin-like milky-white coating film itself mentioned above, and the coating film formed on the electrolytically colored coating in the conventional method has both a matte and a matte finish. It is completely transparent and makes the most of the texture of the underlying colored film, so even if such a coating is composited onto a colored film, the color tone and texture of the underlying colored film will only be reproduced as is. The color tone itself does not change at all, but the translucent satin-like milky white coating, especially 60
° By forming a coating film with a specular gloss of 10% or less, more preferably 2 to 5%, the texture of the colored film changes from a cold light metallic texture to a warm inorganic texture, and the color tone of the colored film changes as described above. It is something to do.
更に詳述すると、梨地状乳白色塗膜は上記のように塗膜
自体が半透明乳白色で、塗膜の質感が曇りガラス的な質
感であるため、本塗膜が着色皮膜表面に密着形成される
ことにより、光学特性（光の透過及び屈折特性）が大き
く変化し、着色皮膜の色調及び質感を変えるもので、本
塗膜は微細な地紋状の凹凸が無数に形成されているため
、光が塗膜表面に当ると細かく散乱し、散乱光を目視す
ることにより下地の着色皮膜の軽金属的質感が打ち消さ
れ、更に塗膜の乳白色と下地着色皮膜の色調とが相乗さ
れることにより、暖みのある無機質的質感を持つ独特な
色調及び質感の外観が得られるものであり、更に、従来
の着色皮膜と艶消し透明塗膜の組合せでは塗膜表面に大
きなうねりがあるため、見る角度によっては色調変化を
起こすことがあるが、本発明塗膜では微細な地紋状凹凸
が均一に形成されているため、見る角度による色調変化
を起こさないものである。To explain in more detail, as mentioned above, the satin-like milky white paint film itself is translucent milky white, and the texture of the paint film is like cloudy glass, so the main paint film is formed in close contact with the surface of the colored film. As a result, the optical properties (light transmission and refraction properties) change significantly, and the color tone and texture of the colored film change.This coating film is formed with countless irregularities in the form of fine background patterns, so light When it hits the paint film surface, it is scattered finely, and by visually observing the scattered light, the light metallic texture of the underlying colored film is canceled out, and the milky white color of the paint film and the color tone of the underlying colored film are synergized, creating a warm feeling. A unique color tone and textured appearance with a certain inorganic texture can be obtained.Furthermore, the combination of a conventional colored film and a matte transparent film has large undulations on the surface of the film, so depending on the viewing angle, However, since the coating film of the present invention has fine background pattern-like irregularities formed uniformly, the color tone does not change depending on the viewing angle.
また、本発明による梨地状塗膜においては、しみ、指紋
、加工時の油分等が付着し難く、耐汚染性に優れている
ものであり、しかもこのような汚染が生しても容易に清
掃除去し得る特性を有していると共に、アルミニウム又
はアルミニウム合金基材を形成した時のダイスマークや
圧延マークを消す作用があり、レベリング性が優れてい
るもので、このようなダイスマークや圧延マークは従来
の塗膜においてはそのまま顕出されていたものである。In addition, the satin-like coating film according to the present invention is resistant to stains, fingerprints, oils from processing, etc., and has excellent stain resistance, and even if such stains occur, they can be easily cleaned. In addition to having the property of being removable, it also has the effect of erasing die marks and rolling marks when forming aluminum or aluminum alloy base materials, and has excellent leveling properties. were exposed as they were in conventional coatings.
それ故、このような点からしても暖かな質感を与え得る
ものである。更にこの本発明の梨地状塗膜は耐沸騰水性
にも優れ、例えば沸騰水中に２４時間浸漬しても６０゛
光沢保持率は殆ど変化がなく、長期に亘りその特性を良
好に発揮する。Therefore, from this point of view as well, it can give a warm texture. Furthermore, the satin-like coating film of the present invention has excellent boiling water resistance; for example, even when immersed in boiling water for 24 hours, there is almost no change in the 60° gloss retention rate, and it exhibits its properties well over a long period of time.
従って、本発明に係る電解着色皮膜と半透明梨地状乳白
色塗膜との複合皮膜は、上述したように外観的に優れて
いると共に、皮膜特性も従来の複合皮膜より優れている
ものである。Therefore, the composite film of the electrolytically colored film and the translucent satin-like milky white paint film according to the present invention is superior in appearance as described above, and the film properties are also superior to conventional composite films.
本発明によれば、アルミニウム又はアルミニウム合金基
材上に梨地状の無機質的な質感を有する独特の色調の電
解着色膜−塗膜の複合皮膜が形成され、しかもこの複合
皮膜はアルミニウム又はアルミニウム合金基材のダイス
マークや圧延マーク等を隠蔽し得るので、非常に外観が
良好である上、耐汚垢汚染性、汚垢除去性に優れ、皮膜
特性が良好であるため、表面状態が改善された着色アル
ミニウム又はアルミニウム合金材を得ることができる。According to the present invention, a composite film of an electrolytically colored film and a coating film having a unique color tone and having a satin-like inorganic texture is formed on an aluminum or aluminum alloy base material, and furthermore, this composite film is formed on an aluminum or aluminum alloy base material. Since it can hide die marks and rolling marks on the material, it has a very good appearance, and has excellent stain resistance and dirt removability, and has good film properties, so the surface condition has been improved. Colored aluminum or aluminum alloy materials can be obtained.
従って、本発明の着色アルミニウム又はアルミニラム合
金材は建材、その他の用途に好適に用いられ、また本発
明方法によれば、かかる有用な着色アルミニウム又はア
ルミニウム合金材を簡単かつ確実に、しかも経済的に製
造することができる。Therefore, the colored aluminum or aluminum alloy material of the present invention can be suitably used for building materials and other purposes, and according to the method of the present invention, such useful colored aluminum or aluminum alloy materials can be produced easily, reliably, and economically. can be manufactured.
以下、実施例と比較例を示し、本発明を具体的に説明す
るが、本発明は下記の実施例に制限されるものではない
。EXAMPLES Hereinafter, the present invention will be specifically explained by showing examples and comparative examples, but the present invention is not limited to the following examples.
〔実施例１〕
Ａ−６０６３のアルミニウム合金材を１５％硫酸水溶液
（２０℃）中で電流密度１．５ Ａ／ ｄ ｍ２におい
て３０分間直流電解し、陽極酸化皮膜（膜厚１４μｍ）
を生成し、水洗後、次の浴組成及び条件で対極にニッケ
ル板を用いて交流電解着色処理し、濃黒色に着色した。[Example 1] A-6063 aluminum alloy material was subjected to direct current electrolysis in a 15% sulfuric acid aqueous solution (20°C) at a current density of 1.5 A/d m2 for 30 minutes to form an anodized film (film thickness 14 μm).
was produced, washed with water, and then subjected to alternating current electrolytic coloring using a nickel plate as a counter electrode under the following bath composition and conditions, resulting in deep black coloring.
硫酸ニッケル １００ｇ／ｌホウ酸
４５ｇ／β硫酸マグネシウム
１４０ ｇ’／β酒石酸
３ ｇ／ｊ！ｐ Ｈ５，０
ＡＣ１７Ｖ、室温、２５分間の条件で通電処処理した。Nickel sulfate 100g/l boric acid
45g/β magnesium sulfate
140 g'/β-tartaric acid
3 g/j! Electrical treatment was carried out under the conditions of pH 5.0 AC17V, room temperature, and 25 minutes.
次いで、上述した変性アクリル樹脂の不揮発分１０ｗｔ
％の塗料水溶液を用い、下記条件によりステンレススチ
ール板を対極として用いて陽極電着塗装を施した。Next, 10 wt of non-volatile content of the above-mentioned modified acrylic resin
% paint solution and a stainless steel plate was used as a counter electrode to perform anodic electrodeposition under the following conditions.
浴濃度 １０ｉｙｔ％
浴温度 ２０°Ｃ
印加電圧 １５０■
通電時間 ３分間
膜厚 １）μｍ
次に、十分に水洗処理を施し、風乾後、１８０℃で３０
分間焼付処理を行い、着色皮膜と塗膜との複合皮膜を形
成した。Bath concentration: 10 iyt% Bath temperature: 20°C Applied voltage: 150 ■ Current application time: 3 minutes Film thickness: 1) μm Next, thoroughly wash with water, air dry, and heat at 180°C for 30 minutes.
A baking treatment was performed for a minute to form a composite film of a colored film and a paint film.
このようにして得られた複合皮膜は、６０°鏡面光沢度
２％を有し、暖みの有る無機質的質感を持つグレーブラ
ンク色からなる外観であった。The composite film thus obtained had a 60° specular gloss of 2% and an appearance consisting of a gray blank color with a warm mineral texture.
なお、前記着色浴中で通電時間を変えてゴールド、ライ
トブロンズ、ブロンズ、ダークブロンズの着色処理を施
し、次いで上記電着塗装用塗料浴中で電着塗装を行ない
、焼付は処理を行った結果、暖みの有る無機質的質感を
持つ、それぞれの色調に対応した明るい灰黄色、カーキ
ー色、バーンアンバー色、黒茶色からなる外観の複合皮
膜が得られた。In addition, coloring of gold, light bronze, bronze, and dark bronze was performed by changing the energization time in the coloring bath, and then electrodeposition was performed in the electrodeposition paint bath, and baking was performed. A composite film with a warm, inorganic texture and an appearance consisting of bright gray-yellow, khaki, burnt umber, and black-brown colors corresponding to each color tone was obtained.
〔実施例２〕
Ａ−１）００のアルミニウム板材を１５％硫酸水溶液（
２０℃）中で電流密度１５Ａ／ｄｍ２において３０分間
直流電解し、陽極酸化皮膜（膜厚１４μｍ）を生成し、
水洗後、次の浴組成及び条件でステンレススチールを対
極に用いて交流電解着色処理し、ダークブロンズ色に着
色した。[Example 2] A-1)00 aluminum plate was treated with a 15% sulfuric acid aqueous solution (
20°C) at a current density of 15 A/dm2 for 30 minutes to generate an anodized film (film thickness 14 μm),
After washing with water, alternating current electrolytic coloring treatment was performed using stainless steel as a counter electrode under the following bath composition and conditions to give a dark bronze color.
硫酸コバルト １００ｇ／β 硼酸 ４０〜 酒石酸 １０ 〃 硫酸マグネシウム １７５ 〜 ＡＣ１９Ｖで室温において１５分間通電処型処理した。Cobalt sulfate 100g/β Boric acid 40~ Tartaric acid 10 Magnesium sulfate 175 ~ Electrical treatment was carried out at AC19V at room temperature for 15 minutes.
次いで、実施例１と同様の変性水溶性アクリル樹脂塗料
を用い、下記条件により陽極電着塗装を施した。Next, using the same modified water-soluble acrylic resin paint as in Example 1, anodic electrodeposition was applied under the following conditions.
浴濃度 ＩＯ匈ｔ％
浴温度 ２０℃
印加電圧 １８０Ｖ
通電時間 ２分間
膜厚 １）μｍ
次に、十分に水洗処理を施し、風乾後１８０℃で３０分
間焼付処理を行ない、複合皮膜を形成した。Bath concentration: IO t% Bath temperature: 20°C Applied voltage: 180V Current application time: 2 minutes Film thickness: 1) μm Next, the film was thoroughly washed with water, air-dried, and then baked at 180°C for 30 minutes to form a composite film.
このようにして得られた複合皮膜は、６０°鏡面光沢度
５％を有し、暖みの有る無機質的質感を持つ黒茶色から
なる外観であった。The composite film thus obtained had a 60° specular gloss of 5% and had a black-brown appearance with a warm mineral texture.
なお、前記着色浴中で通電時間を変えてゴールド、ライ
トブロンズ、ブロンズ、ブラック色にそれぞれ着色処理
を施し、次いで上記電着塗装用塗料浴中で電着塗装を行
い、焼付は処理を施した結果、暖みの有る無機質的質感
を持つ、それぞれの色調に対応した明るい灰黄色、カー
キ色、グレーブランク色からなる外観の複合皮膜が得ら
れた。In addition, coloring treatments were applied to gold, light bronze, bronze, and black colors by changing the energization time in the coloring bath, and then electrodeposition was performed in the electrodeposition paint bath described above, and baking was performed. As a result, a composite film with a warm, inorganic texture and an appearance consisting of bright gray-yellow, khaki, and gray-blank colors corresponding to each color tone was obtained.
〔実施例３〕
Ａ−５００５のアルミニウム板材を１５％硫酸水溶液（
２０°Ｃ）中で電流密度１．５ Ａ／ ｄ ｍ２におい
て３０分間直流電解し、陽極酸化皮膜（膜厚１４μｍ）
を生成し、水洗後、次の浴組成及び条件で直流陰極電解
着色処理し、ゴールド色に着色した。[Example 3] A-5005 aluminum plate material was treated with a 15% sulfuric acid aqueous solution (
Direct current electrolysis was carried out for 30 minutes at a current density of 1.5 A/d m2 at 20°C) to form an anodized film (thickness: 14 μm).
was produced, washed with water, and then subjected to direct current cathode electrolysis coloring using the following bath composition and conditions, resulting in a gold color.
硫酸ニッケル ５０ｇ／ｊｌ！ホウ酸
３０ｇ／ｌ
上記陽極酸化皮膜を陰極とし、ニッケル板を陽極として
、定電流密度０．５Ａ／ｄｍ”で室温において１分間通
電処理した。Nickel sulfate 50g/jl! Boric acid
30 g/l The above anodic oxide film was used as a cathode, and the nickel plate was used as an anode, and current was applied at a constant current density of 0.5 A/dm'' at room temperature for 1 minute.
〔実施例４〕
次いで、実施例１と同様の変性水溶性アクリル樹脂塗料
を用い、下記条件で陽極電着塗装を施した。[Example 4] Next, using the same modified water-soluble acrylic resin paint as in Example 1, anodic electrodeposition painting was performed under the following conditions.
浴濃度 ｌ Ｑｗｔ％浴温度
２０℃
印加電圧 １６０Ｖ
通電時間 ３分間
膜厚 ９μｍ
次に１、十分水洗処理を施し、風乾後１８０°Ｃで３０
分間焼付処理を行い、複合皮膜を形成した。Bath concentration l Qwt% Bath temperature
20°C Applied voltage: 160V Current application time: 3 minutes Film thickness: 9μm Next, 1. Thoroughly wash with water, air dry, and heat at 180°C for 30 minutes.
A baking treatment was performed for a minute to form a composite film.
このようにして得られた複合皮膜は６０°鏡面光沢度１
０％を有し、暖みのある無機質的質感を持つ明るい灰黄
色からなる外観であった。The composite film thus obtained has a 60° specular gloss of 1
The appearance was a bright gray-yellow color with a warm mineral texture.
なお、前記着色浴中で通電時間を変えてライトブロンズ
、ブロンズ、ダークブロンズ、ブラック色にそれぞれ着
色処理を施し、次いで上記電着塗装用塗料浴中で電着塗
装を行い、焼付は処理を施した結果、暖かみのある無機
質的質感を持ちそれぞれの色調に対応した、カーキ色、
パーンアンバー色、黒茶色、グレーブランク色からなる
外観の複合皮膜が得られた。In addition, coloring treatments were applied to light bronze, bronze, dark bronze, and black by changing the energization time in the coloring bath, and then electrodeposition was performed in the electrodeposition paint bath, and baking was not performed. The result is a khaki color that has a warm, inorganic texture and corresponds to each color tone.
A composite film with an appearance consisting of burnt umber, black-brown, and gray-blank colors was obtained.
〔比較例１〕
Ａ−６０６３のアルミニウム合金材を１５％硫酸水溶液
（２０℃）中で電流密度１５Ａ／ｄｍ２において３０分
間直流電解して陽極酸化皮膜（膜厚１４μｍ）を生成し
、水洗後、次の浴組成及び条件で交流電解着色処理し、
濃黒色に着色した。[Comparative Example 1] A-6063 aluminum alloy material was subjected to direct current electrolysis in a 15% sulfuric acid aqueous solution (20°C) at a current density of 15 A/dm2 for 30 minutes to form an anodized film (film thickness 14 μm), and after washing with water, AC electrolytic coloring treatment with the following bath composition and conditions,
Colored deep black.
硫酸ニッケル １００ ｇ／ｎホウ酸
４５ 〃
硫酸マグネシウム １４０ 〃
酒石酸 ３〜
ｐｒ＋ ５．０ＡＣ］７Ｖ、
室温２５分間の条件で通電型処処理した。Nickel sulfate 100 g/n boric acid
45 〃 Magnesium sulfate 140 〃 Tartaric acid 3~ pr+ 5.0AC] 7V,
Electrical treatment was performed at room temperature for 25 minutes.
次いで、水溶性艷有りアクリルメラミン樹脂塗料として
ハニー化成（株）製バニライトＡＬ−８０ＯＮなる電着
塗装用塗料浴中において着色皮膜に対して下記条件で陽
極電着塗装を施した。Next, the colored film was subjected to anodic electrodeposition in a water-soluble acrylic melamine resin paint bath called Vanillite AL-80ON manufactured by Honey Kasei Co., Ltd. under the following conditions.
浴濃度 ＩＱｗｔ％
浴温度 ２０℃
印加電圧 １８０■
通電時間 ４分間
膜厚 １）μｍ
次に、十分に水洗し、風乾後、１８０℃で３０分間焼付
処理を行い、複合皮膜を形成した。Bath concentration: IQwt% Bath temperature: 20°C Applied voltage: 180cm Current application time: 4 minutes Film thickness: 1) μm Next, the film was thoroughly washed with water, air-dried, and baked at 180°C for 30 minutes to form a composite film.
このようにして得られた複合皮膜は、６０°鏡面光沢度
９５％で軽金属的質感を持つ濃黒色の外観を有しており
、複合皮膜の質感及び色調は、電着塗装以前の電解着色
皮膜の質感及び色調とまったく同一の外観であった。The composite film thus obtained has a 60° specular gloss of 95% and a dark black appearance with a light metallic texture, and the texture and color tone of the composite film is similar to that of the electrolytically colored film before electrodeposition coating. The texture and color tone were exactly the same in appearance.
〔比較例２〕
Ａ−１）００のアルミニウム材を１５％硫酸水溶液中で
電流密度１５ Ａ ／ ｄ ｍ ”において３０分間直
流電解して陽極酸化皮膜（膜厚１４μｍ）を生成し、水
洗後火の浴組成及び条件で交流電解着色処理し、ダーク
ブロンズ色に着色した。[Comparative Example 2] A-1)00 aluminum material was electrolyzed with direct current for 30 minutes at a current density of 15 A/dm'' in a 15% sulfuric acid aqueous solution to form an anodic oxide film (thickness: 14 μm), and after washing with water, it was ignited. AC electrolytic coloring treatment was carried out under the following bath composition and conditions, resulting in a dark bronze color.
硫酸ニッケル １００ ｇ／Ｉｔホウ酸
４５ 〃
硫酸マグネシウム １４０ 〃
酒石酸 ３〜
ｐＨ５，０
ＡＣ１７Ｖ、室温、１５分間の条件で通電処理した。Nickel sulfate 100 g/It boric acid
45〃Magnesium sulfate 140〃Tartaric acid 3~pH5.0 Electrical treatment was carried out under the conditions of AC17V, room temperature, and 15 minutes.
次いで、水溶性艶消しアクリルメラミン樹脂塗料として
ハニー化成（株）製ハニヒルＤＸなる電着塗装用塗料浴
中で上記着色皮膜に対して下記条件で陽極電着塗装を施
した。Next, the above-mentioned colored film was subjected to anodic electrodeposition as a water-soluble matte acrylic melamine resin paint in an electrodeposition paint bath named Honeyhill DX manufactured by Honey Kasei Co., Ltd. under the following conditions.
浴濃度 １０ｗｔ％
浴温度 ２０℃
印加電圧 １８０■
通電時間 ４分
膜厚 １）μｍ
次に、十分水洗し、風乾した後、１８０℃で３０分間焼
付処理を行い、複合皮膜を形成した。Bath concentration: 10 wt% Bath temperature: 20° C. Applied voltage: 180 μm Current application time: 4 minutes Film thickness: 1) μm Next, after thoroughly washing with water and air drying, baking treatment was performed at 180° C. for 30 minutes to form a composite film.
このようにして得られた複合皮膜は６０°鏡面光沢度２
５％で軽金属的質感を持つダークブロンズ色の外観の艶
消し複合皮膜であり、この複合皮膜の質感及び色調は電
着塗装以前の電解着色皮膜の質感及び色調と全＜１−Ｌ
−の外観であった。The composite film thus obtained has a 60° specular gloss level of 2
At 5%, it is a matte composite film with a dark bronze appearance with a light metallic texture, and the texture and color tone of this composite film are totally < 1-L
It had the appearance of -.
なお、上記実施例により得られた複合皮膜と比較例２の
艶消し複合皮膜の特性を比較した結果を第１表に示す。Table 1 shows the results of comparing the properties of the composite film obtained in the above example and the matte composite film of Comparative Example 2.
第１表の結果より、本発明による複合皮膜が優れた皮膜
特性を有していることが認められる。From the results in Table 1, it is recognized that the composite film according to the present invention has excellent film properties.
Claims (3)
着色皮膜が形成されていると共に、この着色皮膜上に６
０°鏡面光沢度が１０％以下の半透明の梨地状乳白色塗
膜が形成されてなることを特徴とする着色アルミニウム
又はアルミニウム合金材。(1) A colored film is formed on the surface of the aluminum or aluminum alloy base material, and 6
A colored aluminum or aluminum alloy material comprising a translucent satin-like milky white coating having a 0° specular gloss of 10% or less.
化処理を施し、次いで電解着色処理を施した後、水溶性
樹脂分に水難溶性もしくは水不溶性樹脂分が添加されて
なる陽極電着塗装用塗料浴を用いて陽極電着塗装を施し
て、上記電解着色処理による着色皮膜上に半透明の梨地
状乳白色塗膜を形成することを特徴とする着色アルミニ
ウム又はアルミニウム合金材の製造方法。(2) After anodizing the aluminum or aluminum alloy base material and then electrolytically coloring it, a paint bath for anodic electrodeposition is prepared by adding a slightly water-soluble or water-insoluble resin to the water-soluble resin. A method for producing a colored aluminum or aluminum alloy material, characterized in that a translucent matte-like milky-white coating is formed on the colored film obtained by the electrolytic coloring treatment by applying anodic electrodeposition using the above-mentioned electrolytic coloring treatment.
０％以下のものである特許請求の範囲第２項記載の方法
。(3) Translucent satin-like milky white coating with 60° specular gloss of 1
3. The method according to claim 2, wherein the content is 0% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4498987A JPS63210296A (en) | 1987-02-26 | 1987-02-26 | Colored aluminum or aluminum alloy material and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4498987A JPS63210296A (en) | 1987-02-26 | 1987-02-26 | Colored aluminum or aluminum alloy material and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63210296A true JPS63210296A (en) | 1988-08-31 |
Family
ID=12706855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4498987A Pending JPS63210296A (en) | 1987-02-26 | 1987-02-26 | Colored aluminum or aluminum alloy material and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63210296A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56103261A (en) * | 1980-01-22 | 1981-08-18 | Honny Chem Ind Co Ltd | Forming of matte electrodeposition coating film |
| JPS6014839A (en) * | 1983-07-05 | 1985-01-25 | 東芝テック株式会社 | Suction port body of electric cleaner |
| JPS6040520A (en) * | 1983-08-15 | 1985-03-02 | Hitachi Electronics Eng Co Ltd | Adjusting device of head position for floppy disk device |
| JPS61145265A (en) * | 1984-12-19 | 1986-07-02 | Honny Chem Ind Co Ltd | Resin composition for matted ectrodeposition coating |
-
1987
- 1987-02-26 JP JP4498987A patent/JPS63210296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56103261A (en) * | 1980-01-22 | 1981-08-18 | Honny Chem Ind Co Ltd | Forming of matte electrodeposition coating film |
| JPS6014839A (en) * | 1983-07-05 | 1985-01-25 | 東芝テック株式会社 | Suction port body of electric cleaner |
| JPS6040520A (en) * | 1983-08-15 | 1985-03-02 | Hitachi Electronics Eng Co Ltd | Adjusting device of head position for floppy disk device |
| JPS61145265A (en) * | 1984-12-19 | 1986-07-02 | Honny Chem Ind Co Ltd | Resin composition for matted ectrodeposition coating |
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