GB1466708A - Electrolytic colouring of anodised aluminium articles - Google Patents

Electrolytic colouring of anodised aluminium articles

Info

Publication number
GB1466708A
GB1466708A GB4844374A GB4844374A GB1466708A GB 1466708 A GB1466708 A GB 1466708A GB 4844374 A GB4844374 A GB 4844374A GB 4844374 A GB4844374 A GB 4844374A GB 1466708 A GB1466708 A GB 1466708A
Authority
GB
United Kingdom
Prior art keywords
anodised aluminium
nov
added
controlled
electrolytically
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
Application number
GB4844374A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
Schweizerische Aluminium AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alusuisse Holdings AG, Schweizerische Aluminium AG filed Critical Alusuisse Holdings AG
Publication of GB1466708A publication Critical patent/GB1466708A/en
Expired legal-status Critical Current

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
    • C25D11/20—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)
  • Electroplating And Plating Baths Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Cosmetics (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

1466708 Electrolytically colouring anodized aluminium SWISS ALUMINIUM Ltd 8 Nov 1974 [9 Nov 1973] 48443/74 Heading C7B Pre-anodized Al or Al alloy is coloured electrolytically using A.C. in an aqueous acidic bath containing at least one colour forming metallic salt and to which an amino-alcohol has been added. The metal salt may be of Ni, Co, Cu, Sn, Ag and/or Fe and the additive one or more of mono-, di- or triethanolamine. The latter may be added in amount at least 1 gpl before or during colouration to prevent a pH drop. In examples the pH of a Cu/Co/Ni sulphate bath containing H 3 BO 3 is controlled to 4À7, and the pH of a Sn/H 2 SO 4 bath is controlled to 1À4.
GB4844374A 1973-11-09 1974-11-08 Electrolytic colouring of anodised aluminium articles Expired GB1466708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1579973A CH581706A5 (en) 1973-11-09 1973-11-09

Publications (1)

Publication Number Publication Date
GB1466708A true GB1466708A (en) 1977-03-09

Family

ID=4412053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4844374A Expired GB1466708A (en) 1973-11-09 1974-11-08 Electrolytic colouring of anodised aluminium articles

Country Status (14)

Country Link
US (1) US3912602A (en)
AT (1) AT331607B (en)
BE (1) BE821899A (en)
CA (1) CA1030483A (en)
CH (1) CH581706A5 (en)
DE (1) DE2450175A1 (en)
DK (1) DK150187C (en)
ES (1) ES431704A1 (en)
FR (1) FR2250835B1 (en)
GB (1) GB1466708A (en)
IT (1) IT1025421B (en)
NL (1) NL7414354A (en)
NO (1) NO137241C (en)
SE (1) SE407084B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101737A (en) * 1975-03-05 1976-09-08 Yoshida Kogyo Kk Aruminiumumataha aruminiumugokinno denkaichakushokuho
JPS5423663B2 (en) * 1975-03-06 1979-08-15
DE4244021A1 (en) * 1992-12-24 1994-06-30 Henkel Kgaa Process for the electrolytic alternating current coloring of aluminum surfaces

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382160A (en) * 1960-03-31 1968-05-07 Asada Tahei Process for inorganically coloring aluminum
GB1241296A (en) * 1967-11-24 1971-08-04 Alcan Res & Dev Process for colouring anodised aluminium by electrolytic deposition
US3616297A (en) * 1968-09-23 1971-10-26 Alcan Res & Dev Method of producing colored coatings of aluminum
NO120248B (en) * 1969-06-25 1970-09-21 O Gedde
US3773631A (en) * 1970-10-16 1973-11-20 Blasberg Gmbh & Co Kg Friedr Aqueous electrolytic bath for coloring anodic oxide layers on aluminum and aluminum alloy substrates and process for coloring said substrates
US3798137A (en) * 1972-03-22 1974-03-19 Aluminum Co Of America Direct current pigmenting of anodized aluminum

Also Published As

Publication number Publication date
CA1030483A (en) 1978-05-02
DE2450175A1 (en) 1975-05-15
NL7414354A (en) 1975-05-13
ATA896274A (en) 1975-11-15
FR2250835B1 (en) 1978-04-28
NO137241C (en) 1978-01-25
FR2250835A1 (en) 1975-06-06
AT331607B (en) 1976-08-25
CH581706A5 (en) 1976-11-15
NO744012L (en) 1975-06-02
DK580374A (en) 1975-07-14
DK150187C (en) 1987-10-12
NO137241B (en) 1977-10-17
DK150187B (en) 1986-12-29
US3912602A (en) 1975-10-14
IT1025421B (en) 1978-08-10
SE407084B (en) 1979-03-12
ES431704A1 (en) 1976-09-16
BE821899A (en) 1975-03-03
SE7414014L (en) 1975-05-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931108