GB488952A - Process for the colouration of artificially produced oxide films on aluminium and its alloys - Google Patents
Process for the colouration of artificially produced oxide films on aluminium and its alloysInfo
- Publication number
- GB488952A GB488952A GB152637A GB152637A GB488952A GB 488952 A GB488952 A GB 488952A GB 152637 A GB152637 A GB 152637A GB 152637 A GB152637 A GB 152637A GB 488952 A GB488952 A GB 488952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- parts
- alloys
- oxide films
- minutes
- 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
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
Landscapes
- Chemical & Material Sciences (AREA)
- General 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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
488,952. Colouring aluminium. HILL, F., RADLEY, J. A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 18, 1937, No. 1526. [Class 93] Oxide films produced artificially on aluminium and its alloys are coloured by treatment with a dyebath containing a sulphuric ester salt of a leuco vat dyestuff of the anthraquinone series and developing the shade by treatment with a suitable oxidizing-agent. In examples : (1) 5 parts of Soledon Jade Green paste are dissolved in 100 parts of water and 0À5 part of acetic acid is added. The temperature is adjusted to 60‹ C., and anodized aluminimn is immersed in the bath for 10 minutes. The colour is developed by immersing for 5 minutes at ordinary temperature in a bath containing 1 part sodium nitrite and 1 part hydrochloric acid per 1000 parts water ; (2) a bright violet shade is obtained by substituting Soledon Brilliant Purple 2R for the paste used in example 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB152637A GB488952A (en) | 1937-01-18 | 1937-01-18 | Process for the colouration of artificially produced oxide films on aluminium and its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB152637A GB488952A (en) | 1937-01-18 | 1937-01-18 | Process for the colouration of artificially produced oxide films on aluminium and its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB488952A true GB488952A (en) | 1938-07-18 |
Family
ID=9723506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB152637A Expired GB488952A (en) | 1937-01-18 | 1937-01-18 | Process for the colouration of artificially produced oxide films on aluminium and its alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB488952A (en) |
-
1937
- 1937-01-18 GB GB152637A patent/GB488952A/en not_active Expired
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