JPS62238395A - Formation of opaque colored film on aluminum material - Google Patents
Formation of opaque colored film on aluminum materialInfo
- Publication number
- JPS62238395A JPS62238395A JP7823186A JP7823186A JPS62238395A JP S62238395 A JPS62238395 A JP S62238395A JP 7823186 A JP7823186 A JP 7823186A JP 7823186 A JP7823186 A JP 7823186A JP S62238395 A JPS62238395 A JP S62238395A
- Authority
- JP
- Japan
- Prior art keywords
- film
- aluminum
- soln
- aqueous
- treatment
- 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
- 239000000463 material Substances 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 26
- 229910052782 aluminium Inorganic materials 0.000 title claims description 26
- 230000015572 biosynthetic process Effects 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 6
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 5
- 230000002431 foraging effect Effects 0.000 claims abstract description 5
- 238000011282 treatment Methods 0.000 claims description 32
- 239000007864 aqueous solution Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 7
- 230000032683 aging Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 9
- 239000000975 dye Substances 0.000 description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 238000000576 coating method Methods 0.000 description 8
- 239000010407 anodic oxide Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005070 ripening Effects 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- ZEYKLMDPUOVUCR-UHFFFAOYSA-N 2-chloro-5-(trifluoromethyl)benzenesulfonyl chloride Chemical compound FC(F)(F)C1=CC=C(Cl)C(S(Cl)(=O)=O)=C1 ZEYKLMDPUOVUCR-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- RSYUFYQTACJFML-DZGCQCFKSA-N afzelechin Chemical compound C1([C@H]2OC3=CC(O)=CC(O)=C3C[C@@H]2O)=CC=C(O)C=C1 RSYUFYQTACJFML-DZGCQCFKSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical group [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- ZCLVNIZJEKLGFA-UHFFFAOYSA-H bis(4,5-dioxo-1,3,2-dioxalumolan-2-yl) oxalate Chemical group [Al+3].[Al+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O ZCLVNIZJEKLGFA-UHFFFAOYSA-H 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 229940046892 lead acetate Drugs 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229940078494 nickel acetate Drugs 0.000 description 1
- -1 nickel acetate-ammonium fluoride Chemical compound 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明はアルミニウム又はアルミニウム合金材（以下、
単に「アルミニウム材」という、）の表面に不透明着色
皮膜を形成する処理方法であって、耐食性並びに耐汚染
性の優れた不透明着色皮膜を提供し得る処理方法に関す
るものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention is directed to aluminum or aluminum alloy materials (hereinafter referred to as
The present invention relates to a processing method for forming an opaque colored film on the surface of an aluminum material (simply referred to as an "aluminum material"), which can provide an opaque colored film with excellent corrosion resistance and stain resistance.
〈従来技術〉
アルミニウムの着色皮膜材は久しく透明着色皮膜のもの
が汎用されて来たが、近年になり、不透明なパステル調
の色調のものが要望されている。<Prior Art> Transparent colored coating materials for aluminum have been widely used for a long time, but in recent years, there has been a demand for opaque pastel colored coating materials.
そのため基調となる酸化皮膜を白色化し、それに染色処
理や電解着色処理を行なう方法が提案され、酸浴やアル
カリ浴中での電解処理により白色皮膜を形成する方法が
試みられたが、種々の理由で実用化に至っていない。Therefore, methods have been proposed in which the basic oxide film is whitened and then dyed or electrolytically colored, and methods of forming a white film by electrolytic treatment in acid baths or alkaline baths have been attempted, but for various reasons. It has not yet been put into practical use.
一方、特開昭６０−１９７８９７号公報や特開昭６０−
２１５７９５号公報等に予め陽極酸化皮膜処理したアル
ミニウム材をアルミニウム塩水溶液で処理した後、りん
酸或いは炭酸ソーダ溶液に浸漬処理する方法等により、
酸化皮膜のポアー中に白色化合物を生成させ白色皮膜を
形成する方法が提案されている。この方法でそれなりに
良好な皮膜が得られるが、白色皮膜の耐食性が良好でな
く、白色生成物を生成させる浴の管理が難しいなどの問
題がある。On the other hand, JP-A-60-197897 and JP-A-60-197897
No. 215795, etc., by a method such as treating an aluminum material that has been previously treated with an anodized film with an aqueous aluminum salt solution and then immersing it in a phosphoric acid or soda carbonate solution.
A method has been proposed in which a white compound is generated in the pores of an oxide film to form a white film. Although a reasonably good film can be obtained by this method, there are problems such as poor corrosion resistance of the white film and difficulty in controlling the bath in which the white product is produced.
しかるに本発明者は、硫酸アルミニウム水溶液での処理
に続いて皮膜の熟成処理を行なうことによって皮膜の白
色化を達成でき、しかも沸騰水や加圧蒸気などの高温封
孔処理を施した際の皮膜の透明化も適切に阻止し得るこ
とを見出したものである。However, the inventor of the present invention was able to achieve whitening of the film by aging the film after treatment with an aqueous aluminum sulfate solution, and furthermore, it was possible to achieve whitening of the film by aging the film after treatment with an aqueous solution of aluminum sulfate. It has been discovered that it is also possible to appropriately prevent the transparency of.
〈発明の目的〉
本発明は、予め陽極酸化処理したアルミニウム材を硫酸
アルミニウム水溶液で処理して得た皮膜に高温封孔処理
を施こした場合の皮膜の透明化を防止つつ、耐食性、耐
汚染性に優れた皮膜を提供することのできる方法を提案
するものである。<Objective of the Invention> The present invention aims to prevent the film from becoming transparent when a high-temperature sealing treatment is applied to a film obtained by treating an aluminum material that has been anodized in advance with an aluminum sulfate aqueous solution, and to improve corrosion resistance and stain resistance. This paper proposes a method that can provide a film with excellent properties.
〈発明の構成〉
本発明は、予め陽極酸化処理したアルミニウム材を硫酸
アルミニウム水溶液中で浸漬処理または交流電解処理し
た後、３０〜８０℃の酸化皮膜熟成用水溶液に浸漬処理
し、次いで封孔処理を行なう方法に関するものである。<Structure of the Invention> In the present invention, an aluminum material that has been anodized in advance is subjected to immersion treatment or AC electrolytic treatment in an aluminum sulfate aqueous solution, and then immersion treatment in an oxide film ripening aqueous solution at 30 to 80 ° C., and then a sealing treatment. It relates to a method for carrying out.
アルミニウム材は、サツシ、カーテンウオール、内装材
等の建材、道路用資材、航空機、鉄道車両等の内装材な
どのその着色材の用途に応して、各種の合金種のものが
常法Ｇこより適用されるが、陽極酸化皮膜処理により着
色皮膜が生成する自然発色材も適宜使用される。Aluminum materials are made of various alloys according to the use of coloring materials such as building materials such as sash, curtain walls, interior materials, road materials, interior materials of aircraft, railway vehicles, etc. However, a naturally coloring material that forms a colored film through anodic oxidation film treatment may also be used as appropriate.
アルミニウム材に予め施される陽極酸化処理は多孔性陽
極酸化皮膜が形成される硫酸、りん酸、蓚酸、クロム酸
等の成分からなる通常濃度の浴を用いて直流電解又は交
直重畳電解を行なうことにより、膜厚５〜２０μｍの陽
極酸化皮膜を形成する。The anodizing treatment applied to aluminum materials in advance is performed by direct current electrolysis or AC/DC superposition electrolysis using a bath of normal concentration consisting of components such as sulfuric acid, phosphoric acid, oxalic acid, chromic acid, etc., which forms a porous anodic oxide film. In this way, an anodic oxide film with a thickness of 5 to 20 μm is formed.
最適の硫酸浴による場合には、例えば硫酸濃度１０〜３
０重量％で浴温２０〜３０℃の浴を用いて、電流密度１
〜３Ａ／ｄｍ”、電解電圧１５〜１８Ｖの直流で１５〜
６０分間陽極酸化処理を行なうことによってなされ、こ
れにより通常材であれば透明皮膜が、自然始発色材であ
ればその特性に応じた透明着色皮膜が形成される。When using an optimal sulfuric acid bath, for example, a sulfuric acid concentration of 10 to 3
0% by weight, using a bath with a bath temperature of 20-30°C, and a current density of 1
~3A/dm”, 15~ with electrolytic voltage 15~18V DC
This is done by performing anodic oxidation treatment for 60 minutes, and as a result, a transparent film is formed in the case of a normal material, and a transparent colored film is formed in accordance with the characteristics of a naturally colored material.
予め陽極酸化皮膜が形成されたアルミニウム材は次いで
硫酸アルミニウム水溶液中に供される。The aluminum material on which the anodic oxide film has been formed in advance is then placed in an aqueous aluminum sulfate solution.
硫酸アルミニウム水溶液は硫酸アルミニウムを１０〜１
００ｇ／７！の範囲で含有し、ｐＨ値が３〜９のものが
適当で、所望により硫酸アルミニウムの一部をアルミン
酸ナトリウム又は蓚酸アルミニウムで代替し得る。Aluminum sulfate aqueous solution contains aluminum sulfate 10 to 1
00g/7! It is preferable that the aluminum sulfate is contained in the range of 3 to 9 and has a pH value of 3 to 9. If desired, a part of the aluminum sulfate can be replaced with sodium aluminate or aluminum oxalate.
硫酸アルミニウム水溶液での処理手段が浸漬法によると
きには、液温３０〜６０℃で５〜６０分間浸漬処理する
。この場合、液温に反比例して処理時間を選定すること
により望ましい皮膜が得られる。When the treatment with the aqueous aluminum sulfate solution is by immersion, the immersion treatment is carried out at a solution temperature of 30 to 60° C. for 5 to 60 minutes. In this case, a desired film can be obtained by selecting the treatment time in inverse proportion to the liquid temperature.
一方、交流電解処理法によるときには、浴温３０〜６０
℃、電解電圧５〜４０Ｖで５〜３０分間電解処理するが
、通常の商用交流の外に矩形波電流なども適用できる。On the other hand, when using the AC electrolytic treatment method, the bath temperature is 30 to 60°C.
The electrolytic treatment is carried out at a temperature of 5 to 40 V at an electrolytic voltage of 5 to 40 V for 5 to 30 minutes, but rectangular wave current or the like can also be applied in addition to normal commercial alternating current.
これらの処理によって陽極酸化皮膜のボアー中に水酸化
アルミニウムが析出して来ると共に皮膜自体の改質が行
なわれると思われる。It is thought that these treatments cause aluminum hydroxide to precipitate into the bores of the anodic oxide film, and at the same time, the film itself is modified.
硫酸アルミニウム水溶液処理後、アルミニウム材は熟成
処理に供される。Ｗ１成用水溶液は脱イオン水又は脱イ
オン水に染料を添加した水溶液で、好ましくはｐＨ値が
６〜９の水溶液が用いられるが、液温か３０〜８０℃と
される。液温が８０″Ｃを越えると熟成効果が発現せず
皮膜の透明化が進行してしまうので望ましくなく、一方
３０℃以下では熟成に長時間を要し、実用的でなくなる
。After the aluminum sulfate aqueous solution treatment, the aluminum material is subjected to aging treatment. The aqueous solution for forming W1 is deionized water or an aqueous solution in which a dye is added to deionized water, preferably an aqueous solution having a pH value of 6 to 9, and the liquid temperature is 30 to 80°C. If the liquid temperature exceeds 80"C, the ripening effect will not be achieved and the film will become transparent, which is undesirable. On the other hand, if the temperature is below 30"C, the ripening will take a long time, making it impractical.
脱イオン水に添加される染料は汎用されている無機染料
、有機染料のいずれでもよいが、酸化皮膜の溶解作用が
少ない濃度範囲で使用することが望ましい。The dye added to deionized water may be any commonly used inorganic or organic dye, but it is desirable to use it within a concentration range that has little effect on dissolving the oxide film.
無機染料としては、硫酸アンモニウム、硝酸バリウム、
酢酸鉛、酢酸コバルト、蓚酸第二鉄アンモニウム、硫酸
第二銅アンモニウム等を５〜５０ｇ／７！の濃度で添加
される。Inorganic dyes include ammonium sulfate, barium nitrate,
5-50g/7 of lead acetate, cobalt acetate, ferric ammonium oxalate, cupric ammonium sulfate, etc.! It is added at a concentration of
有機染料としては、水溶性染料であってｐ１１６〜９の
範囲で染色可能な染料で高温封孔処理が可能なものであ
れば特に限定されるものではない。The organic dye is not particularly limited as long as it is a water-soluble dye that can be dyed in the range of p116 to 9 and that can be subjected to high temperature sealing treatment.
例えば、” Ａｉ！Ｇｏｌｄ ＬＦ” （Ｓａｎｄｏ
ｚ社の金色染料）、“０ｘａｎａｌ Ｒｅｄ ＢＲＥ”
（Ｃｉｂａ社の赤色染料）”Ａｌｕｍｉｎａｌ Ｂ
ｉｕｅ Ｂ ” （花見化学社製の青色染料）等の染料
が１〜１０ｇ／Ａの濃度で使用される。このように脱イ
オン水のみ又は脱イオン水に染料を添加して成る熟成用
水溶液中で３０〜８０℃の液温にて１０〜６０分間硫酸
アルミニウム水溶液処理したアルミニウム材を浸漬処理
する。これにより酸化皮膜及びボアー中の水酸化アルミ
ニウムが熟成安定化し・・高温封孔処理時の透明化を防
止すると共に生成皮膜の耐食性・耐汚染性をより優れた
ものとすることができる。For example, “Ai!Gold LF” (Sando
z company's golden dye), “Oxanal Red BRE”
(Ciba's red dye) "Aluminal B"
A dye such as "Iue B" (blue dye manufactured by Hanami Kagaku Co., Ltd.) is used at a concentration of 1 to 10 g/A.In this way, in an aqueous solution for aging consisting of only deionized water or a dye added to deionized water. The aluminum material treated with an aqueous aluminum sulfate solution is immersed for 10 to 60 minutes at a liquid temperature of 30 to 80°C.As a result, the oxide film and aluminum hydroxide in the bore are aged and stabilized, making them transparent during high-temperature sealing treatment. It is possible to prevent corrosion and improve the corrosion resistance and stain resistance of the resulting film.
この場合、脱イオンのみから成る水溶液中で熟成処理し
たときに得られる皮膜は不透明白色皮膜状であり、染料
を添加した水溶液中で熟成処理したときには、その染料
に応じた着色状態での不透明着色皮膜、例えばパステル
調の各種色調を有する皮膜が得られる。また、染料を用
いる場合、酸化皮膜自体と共にボアー中の水酸化アルミ
ニウムにも吸着され、又、反応と固定化されるため、単
に陽極酸化皮膜に染料を作用させたものに比較して日光
堅ろう性も優れており、耐食性、耐汚染性にも優れてい
る皮膜が得られる。In this case, the film obtained when aged in an aqueous solution consisting only of deionized material is an opaque white film, and when aged in an aqueous solution containing a dye, the film is opaque and colored according to the dye. Coatings, for example coatings with various pastel shades, are obtained. In addition, when dye is used, it is adsorbed to the aluminum hydroxide in the bore along with the oxide film itself, and it is also reacted and fixed, so it has better sunlight fastness than when dye is simply applied to the anodic oxide film. It also has excellent corrosion resistance and stain resistance.
μｍ成処理を完了したアルミニウム材は、水洗後封孔処
理される。封孔処理法としては、生成皮膜の熱変化が無
いことから、沸騰水や加圧蒸気等による高温封孔処理法
はもとより、常温封孔剤を添加した浴での低温封孔処理
法のいすね、でも適用される。なお、沸騰水法による場
合には、常法通り、酢酸ニッケル、水ガラス、硫酸クロ
ムカリウム、オレイン酸ナトリウムなどの封孔助剤の常
用濃度（０，０１〜３ ｇ／ Ｎ ）での使用を妨げる
ものではない。The aluminum material that has undergone the μm formation treatment is washed with water and then subjected to a sealing treatment. Sealing methods include high-temperature sealing methods using boiling water or pressurized steam, as well as low-temperature sealing methods using a bath containing a room-temperature sealant, since there is no thermal change in the resulting film. Shin, but it applies. In addition, when using the boiling water method, as usual, sealing aids such as nickel acetate, water glass, chromium potassium sulfate, and sodium oleate should be used at the usual concentration (0.01 to 3 g/N). It's not a hindrance.
また、常温封孔剤としては、酢酸ニッケルーフッ化アン
モニウム系薬剤（日華産業社製商品名ハードウオール）
が適用される。In addition, as a room-temperature sealing agent, nickel acetate-ammonium fluoride type agent (trade name: Hardwall, manufactured by NICCA Sangyo Co., Ltd.)
applies.
く作 用〉
本発明は、予め陽極酸化処理したアルミニウム材の酸化
皮膜中に水酸化アルミニウムを析出させた後、それらを
共に熟成処理することにより皮膜を熱的に安定化させ、
これにより皮膜の不透明白色化をもたらし更には白色化
皮膜の染料により不透明着色皮膜とするものである。Function> The present invention precipitates aluminum hydroxide in the oxide film of an aluminum material that has been anodized in advance, and then thermally stabilizes the film by aging them together.
This causes the coating to become opaque and white, and the dye in the whitened coating further turns the coating into an opaque colored coating.
〈実施例〉
以下、本発明を実施例に詳述するが、これに限定される
ものではない。<Examples> Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited thereto.
去１１ホ１
純度９９．０％のアルミニウム板を脱脂処理した後、１
５重量％の硫酸水溶液中で浴′＆２５ ’ｃ、浴電圧１
８Ｖで１時間、直流陽極酸化処理を行ない２０μｍの陽
極酸化皮膜を形成させた。11-1 After degreasing an aluminum plate with a purity of 99.0%, 1
Bath '&25'c in 5 wt% sulfuric acid aqueous solution, bath voltage 1
Direct current anodic oxidation treatment was performed at 8 V for 1 hour to form a 20 μm anodic oxide film.
次いで、硫酸アルミニウムを３０ｇ／ｌ含有するｐｌ！
、１．０の水溶液中に酸化処理したアルミニウム板を浸
漬し、浴電圧１５Ｖ、浴温６０℃で５０Ｈｚの商用交流
を用い、１５分間電解処理した後、イオン交換樹脂層を
通して脱イオンした純水の６０℃の浴中に３０分間浸漬
し熟成処理を行ない、更に１００℃の沸騰純水中に１５
分間浸漬し封孔処理した。Then pl! containing 30 g/l of aluminum sulfate!
, an oxidized aluminum plate was immersed in an aqueous solution of 1.0, electrolyzed for 15 minutes using a commercial alternating current of 50 Hz at a bath voltage of 15 V and a bath temperature of 60°C, and then deionized pure water was passed through an ion exchange resin layer. Maturing treatment was performed by immersing in a bath at 60°C for 30 minutes, and then soaked in boiling pure water at 100°C for 15 minutes.
It was immersed for a minute and sealed.
以上の処理により、アルミニウム板上に不透明白色皮膜
が形成されたが、ＪＩＳ Ｈ８６８１規格による耐ア
ルカリ性評価試験では２００秒の耐食性を示した。一方
、油性マジックインキで文字、図を書いて１時間放置後
、アセトン綿で拭いたところ完全に消すことができ、耐
汚染性も良好であった。これらの結果から、外装パネル
建材とじて適用し得るものであった。Through the above treatment, an opaque white film was formed on the aluminum plate, which showed corrosion resistance for 200 seconds in an alkali resistance evaluation test according to the JIS H8681 standard. On the other hand, when characters and figures were written with oil-based marker ink and left for one hour, they were completely erased by wiping with acetone cotton, and the stain resistance was also good. From these results, it was found that the material could be applied as an exterior panel building material.
実施例２
純度９９．５％のアルミニウム板をアルカリによる脱膜
・水洗処理後、硫酸２０重量％水溶液（浴温２０’Ｃ）
にて浴電圧１７Ｖで直流陽極酸化処理を４０分間施した
。Example 2 An aluminum plate with a purity of 99.5% was treated with alkali for membrane removal and water washing, and then treated with a 20% by weight sulfuric acid aqueous solution (bath temperature 20'C).
Direct current anodic oxidation treatment was performed for 40 minutes at a bath voltage of 17V.
続いて、液温５０℃の硫酸アルミニウム５０ｇ／ｌ含有
水溶液中に３０分間浸漬した後、イオン交換樹脂にて脱
イオンした純水に５０ｇ／６の割合で蓚酸第二鉄アンモ
ニウムを添加した６０°Ｃに保持された浴中に２０分間
浸漬した。水洗後、更に沸騰純水中に１５分間浸漬して
封孔処理を行なったところ不透明赤褐色皮膜を有するア
ルミニウム材が得られた。Subsequently, after being immersed for 30 minutes in an aqueous solution containing 50 g/l of aluminum sulfate at a liquid temperature of 50°C, ferric ammonium oxalate was added at a ratio of 50 g/6 to pure water deionized with an ion exchange resin. immersed in a bath held at C for 20 minutes. After washing with water, the aluminum material was further immersed in boiling pure water for 15 minutes for pore sealing, and an aluminum material having an opaque reddish-brown film was obtained.
次いで、実施例１と同様な評価試験を行なったところ、
１２０秒の耐食性を示すと共に、耐汚染性も良好であり
、完全に汚れを落す、：とができた。Next, when an evaluation test similar to that in Example 1 was conducted,
In addition to exhibiting corrosion resistance for 120 seconds, it also had good stain resistance and was able to completely remove stains.
実施例３
純度９９．３％のアルミニウム、板材からなる屋内調度
品用部材について、３０″Ｃに保持された１０重量％硫
酸水溶液を使用して浴電圧１６Ｖで３０分間直流陽極酸
化処理を行なった後、硫酸アルミニウム１０ｇ／ｌ−含
有水溶液（液温４０°Ｃ）に２０分間浸漬した。Example 3 A member for indoor furniture made of 99.3% pure aluminum and plate material was subjected to DC anodization treatment for 30 minutes at a bath voltage of 16V using a 10% by weight sulfuric acid aqueous solution maintained at 30"C. Thereafter, it was immersed in an aqueous solution containing 10 g/l of aluminum sulfate (liquid temperature: 40°C) for 20 minutes.
次にスイスのサンド社製有機染料である赤色染料、青色
染料、緑色染料を各々１ ｇ／ （！の割合で溶解させ
た６０゛Ｃの水溶液に２０分間に浸漬し皮膜の熟成と染
色の同時処理を行なった後、沸騰純水中に１０分間浸漬
し封孔処理した。得られたアルミニウム部材は不透明で
パステル調の赤色、青色及び緑色に着色した皮膜が形成
され屋内調度品として好適なイメージを与えるものであ
った。Next, the film was immersed for 20 minutes in an aqueous solution at 60°C in which red, blue, and green organic dyes (organic dyes manufactured by Sandoz, Switzerland) were dissolved at a ratio of 1 g/(!) to simultaneously ripen and dye the film. After the treatment, it was immersed in boiling pure water for 10 minutes to seal the pores.The resulting aluminum member had an opaque film colored in pastel red, blue, and green colors, giving it an image suitable for indoor furnishings. It was intended to give
〈発明の効果〉
本発明は陽極酸化皮膜のボアー中に析出した水酸化アル
ミニウムに熟成処理を施すという単純な工程で、高温封
孔処理時の皮膜の透明化を防止することができ、不透明
着色皮膜を形成することができるので、現場的に優れた
方法である。<Effects of the Invention> The present invention can prevent the film from becoming transparent during high-temperature sealing treatment, and can prevent opaque coloration through a simple process of aging the aluminum hydroxide precipitated in the bore of the anodized film. It is an excellent method in the field because it can form a film.
Claims (2)
ミニウム水溶液中で浸漬処理または交流電解処理した後
、３０〜８０℃の酸化皮膜熟成用水溶液に浸漬処理し、
次いで封孔処理を行なうことを特徴とするアルミニウム
材の不透明着色皮膜処理法。(1) An aluminum material that has been anodized in advance is immersed in an aqueous aluminum sulfate solution or subjected to AC electrolysis treatment, and then immersed in an aqueous solution for oxide film aging at 30 to 80°C,
A method for treating an aluminum material with an opaque colored film, which comprises subsequently performing a pore sealing treatment.
水に染料を添加した水溶液であることを特徴とする特許
請求の範囲第１項に記載のアルミニウム材の不透明着色
皮膜処理法。(2) The method for treating an opaque colored film on an aluminum material according to claim 1, wherein the aqueous solution for aging the oxide film is deionized water or an aqueous solution in which a dye is added to deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7823186A JPS62238395A (en) | 1986-04-07 | 1986-04-07 | Formation of opaque colored film on aluminum material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7823186A JPS62238395A (en) | 1986-04-07 | 1986-04-07 | Formation of opaque colored film on aluminum material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62238395A true JPS62238395A (en) | 1987-10-19 |
| JPH0251997B2 JPH0251997B2 (en) | 1990-11-09 |
Family
ID=13656269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7823186A Granted JPS62238395A (en) | 1986-04-07 | 1986-04-07 | Formation of opaque colored film on aluminum material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62238395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11131036B2 (en) * | 2013-09-27 | 2021-09-28 | Apple Inc. | Cosmetic anodic oxide coatings |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392345A (en) * | 1977-01-25 | 1978-08-14 | Fuji Satsushi Kogyo Kk | Method of finishing surface of aluminium or aluminium alloy material |
-
1986
- 1986-04-07 JP JP7823186A patent/JPS62238395A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5392345A (en) * | 1977-01-25 | 1978-08-14 | Fuji Satsushi Kogyo Kk | Method of finishing surface of aluminium or aluminium alloy material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11131036B2 (en) * | 2013-09-27 | 2021-09-28 | Apple Inc. | Cosmetic anodic oxide coatings |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0251997B2 (en) | 1990-11-09 |
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