JPS57207196A - Formation of opaque colored film on aluminum surface - Google Patents
Formation of opaque colored film on aluminum surfaceInfo
- Publication number
- JPS57207196A JPS57207196A JP9080581A JP9080581A JPS57207196A JP S57207196 A JPS57207196 A JP S57207196A JP 9080581 A JP9080581 A JP 9080581A JP 9080581 A JP9080581 A JP 9080581A JP S57207196 A JPS57207196 A JP S57207196A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- product
- treatment
- subjected
- electrolytic
- 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
Landscapes
- Electrochemical Coating By Surface Reaction (AREA)
Abstract
PURPOSE: To form an opaque colored film of mild color tones by subjecting the Al formed with an anodized film to a DC electrolytic treatment in a phosphoric acid soln. then to an electrolytic coloring treatment by an aq. metallic salt soln. and electrophoretic painting.
CONSTITUTION: After an Al product is formed with an anodized film on the surface by an ordinary method, it is subjected to an AC electrolytic treatment in an aq. acidic soln. of 0.3W3.5pH contg. 10g/lW a satd. amt. ≥1 kind of phosphoric acid, phosphorous acid or their salts or with the Al product as the anode, it is subjected to a DC electrolytic treatment, whereby the surface is converted to a transparent silver white color having a tinge of slight white color. This product is subjected to an AC electrolytic treatment in an aq. soln. contg. salts of Ni, Co, Sn and other coloring metals, so that the surface is colored. Finally, the product is subjected to electrophoretic painting by using a soln. prepd. by dissolving various kinds of resins for paint in water or an org. solvent. The opaque colored film of elegant and mild color tones having no cold metallic feeling is formed on the surface of the Al product. The treatment by the aq. phosphate soln. and the electrolytic coloring treatment may be accomplished simultaneously or in reverse order.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9080581A JPS57207196A (en) | 1981-06-15 | 1981-06-15 | Formation of opaque colored film on aluminum surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9080581A JPS57207196A (en) | 1981-06-15 | 1981-06-15 | Formation of opaque colored film on aluminum surface |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57207196A true JPS57207196A (en) | 1982-12-18 |
Family
ID=14008798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9080581A Pending JPS57207196A (en) | 1981-06-15 | 1981-06-15 | Formation of opaque colored film on aluminum surface |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57207196A (en) |
-
1981
- 1981-06-15 JP JP9080581A patent/JPS57207196A/en active Pending
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