GB489926A - A method of producing an acid-proof and alkali-proof coloured layer on the surface of aluminium or its alloys - Google Patents
A method of producing an acid-proof and alkali-proof coloured layer on the surface of aluminium or its alloysInfo
- Publication number
- GB489926A GB489926A GB2966036A GB2966036A GB489926A GB 489926 A GB489926 A GB 489926A GB 2966036 A GB2966036 A GB 2966036A GB 2966036 A GB2966036 A GB 2966036A GB 489926 A GB489926 A GB 489926A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- aluminium
- glutinous
- proof
- per cent
- 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.)
- Expired
Links
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
489,926. Electrolytic surface treatment of aluminium and its alloys; ornamenting. NAGATA, K. Oct. 31, 1936, No. 29660. [Class 41] [Also in Group XV] Aluminium or an aluminium alloy is treated anodically to form an oxidized film consisting in part of glutinous aluminium hydroxide and is then treated with an acidic or direct dyestuff, the glutinous aluminium hydroxide forming a mordant; the dyed article is then subjected to superheated steam at 40-70 lb. per sq. inch pressure for about half an hour. Acetic acid may be added to the dye-bath ; this increases the absorptive capacity of the coating by the further formation of glutinous aluminium hydroxide. As direct dyestuffs there may be employed Toluylene Red, Paramime Blue, Sirius Yellow and Pluto Blacks, and as acid dyestuffs Supramine Red, Milling Blue, Milling Yellow and Paratine Chrome Black A. The anodizing bath may consist of an aqueous solution containing 2-3 per cent of oxalic acid or 3-4 per cent of ammonium oxalate or 3-4 per cent of chromic acid ; solutions of aqueous solutions of sulphuric acid, boric acid or silicic acid or their salts may also be employed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2966036A GB489926A (en) | 1936-10-31 | 1936-10-31 | A method of producing an acid-proof and alkali-proof coloured layer on the surface of aluminium or its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2966036A GB489926A (en) | 1936-10-31 | 1936-10-31 | A method of producing an acid-proof and alkali-proof coloured layer on the surface of aluminium or its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB489926A true GB489926A (en) | 1938-08-02 |
Family
ID=10295087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2966036A Expired GB489926A (en) | 1936-10-31 | 1936-10-31 | A method of producing an acid-proof and alkali-proof coloured layer on the surface of aluminium or its alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB489926A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297105A (en) * | 2015-11-17 | 2016-02-03 | 惠州市泽宏科技有限公司 | Ceramic anodizing process for frosted glaze of aluminum alloy |
-
1936
- 1936-10-31 GB GB2966036A patent/GB489926A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297105A (en) * | 2015-11-17 | 2016-02-03 | 惠州市泽宏科技有限公司 | Ceramic anodizing process for frosted glaze of aluminum alloy |
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