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GB1440733A - Electrolytic colouration of anodic oxide film on aluminium - Google Patents

Electrolytic colouration of anodic oxide film on aluminium

Info

Publication number
GB1440733A
GB1440733A GB3725174A GB3725174A GB1440733A GB 1440733 A GB1440733 A GB 1440733A GB 3725174 A GB3725174 A GB 3725174A GB 3725174 A GB3725174 A GB 3725174A GB 1440733 A GB1440733 A GB 1440733A
Authority
GB
United Kingdom
Prior art keywords
colouration
anodic
bath
anodized
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.)
Expired
Application number
GB3725174A
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB1440733A publication Critical patent/GB1440733A/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)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Cookers (AREA)
  • Laminated Bodies (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

1440733 Electrolytically colouring anodized aluminium SUMITOMO CHEMICAL CO Ltd 23 Aug 1974 [24 Aug 1973] 37251/74 Heading C7B Anodized Al or Al alloy bearing an oxide layer of thickness at least 6Á is coloured electrolytically by D.C. cathode treatment in an aqueous metal salt solution, followed by at least one pair of alternate D.C. anodic and cathodic treatments in the same or different baths. The Al substrate may be cleaned with NaOH and HNO 3 and anodized in H 2 SO 4 , sulphophthalic acid or sulphosalicylic acid. Colouration may involve a solution of a Ni, Cu, Co, Sn, or Fe salt e.g. Ni sulphate, chloride or acetate, the bath optionally containing H 3 BO 3 or H 2 SO 4 as pH/conductivity regulator and an NH 4 salt. A c.d. of 0.05-3 A/dm<SP>2</SP> for 2 sec-3 min at 10-40"C is specified. The anodic treatment, which may use the same or a different bath, preferably in a separate cell, may use a c.d. of 0À2-1À5 A/dm<SP>2</SP> for 5 sec-2 min. The second cathodic treatment may involve similar conditions to the colouration. Repeated anodic/cathodic treatments deepen the colour. The process overcomes the effects of impurities e.g. Na<SP>+</SP> in the colouring bath. The coloured oxide may be sealed in boiling water.
GB3725174A 1973-08-24 1974-08-23 Electrolytic colouration of anodic oxide film on aluminium Expired GB1440733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9550073A JPS5339865B2 (en) 1973-08-24 1973-08-24

Publications (1)

Publication Number Publication Date
GB1440733A true GB1440733A (en) 1976-06-23

Family

ID=14139305

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3725174A Expired GB1440733A (en) 1973-08-24 1974-08-23 Electrolytic colouration of anodic oxide film on aluminium

Country Status (9)

Country Link
US (1) US3878056A (en)
JP (1) JPS5339865B2 (en)
CA (1) CA1034900A (en)
CH (1) CH588568A5 (en)
DE (1) DE2440540C3 (en)
FR (1) FR2241634B1 (en)
GB (1) GB1440733A (en)
IT (1) IT1019085B (en)
NO (1) NO139693C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056478A1 (en) * 1981-01-16 1982-07-28 Ronain, S.A. Process for electrolytically colouring a piece of aluminium or aluminium alloy
GB2187760A (en) * 1986-02-21 1987-09-16 Kinki Yakuhin Kogyo Kk Electrolytic colouring of chromium alloy

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334107B2 (en) * 1974-04-23 1978-09-19
JPS5129328A (en) * 1974-08-29 1976-03-12 Sumitomo Chemical Co Aruminiumu mataha aruminiumugokin no hyomenniseiseisaseta yokyokusankahimaku no denkaichakushokuhoho
JPS5423664B2 (en) * 1975-03-06 1979-08-15
US4090880A (en) * 1977-03-03 1978-05-23 Polychrome Corporation Lithographic printing plate and method of making same
JPS5521503A (en) * 1978-07-28 1980-02-15 Canon Inc Coloring of aluminium
JPS5852037B2 (en) * 1979-09-20 1983-11-19 株式会社 日本軽金属総合研究所 Manufacturing method of colored aluminum material
JPS5852038B2 (en) * 1980-03-26 1983-11-19 株式会社 日本軽金属総合研究所 Manufacturing method of colored aluminum material
US4526671A (en) * 1982-09-24 1985-07-02 Pilot Man-Nen-Hitsu Kabushiki Kaisha Surface treatment of aluminum or aluminum alloys
CN109280950A (en) * 2018-10-19 2019-01-29 肇庆亚洲铝厂有限公司 The method and aluminum profile of production black aluminum profile are coloured using anodic oxidation single nickel salt
CN118064950B (en) * 2024-04-25 2024-06-28 深圳市欣茂鑫实业有限公司 A rare earth-based electrolytic coloring method, electrolyte and alloy product

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1150882A (en) * 1965-07-14 1969-05-07 Alcan Res & Dev Anodising Treatment For Aluminium And Its Alloys
DE1521941A1 (en) * 1966-07-18 1969-06-12 Riken Almite Industry Company Process for coloring anodic coatings on aluminum and aluminum alloys with metal salts
DE1902983C3 (en) * 1968-06-21 1978-06-22 Keller, Eberhard, 7121 Freudental Process for the electrolytic coloring of anodic oxide layers on aluminum or aluminum alloys
US3622471A (en) * 1968-07-02 1971-11-23 Alcan Res & Dev Production of inorganically colored coatings on aluminum
US3616297A (en) * 1968-09-23 1971-10-26 Alcan Res & Dev Method of producing colored coatings of aluminum
DE1948552B2 (en) * 1968-09-26 1971-04-22 PROCESS FOR THE ELECTROLYTIC PRODUCTION OF COLORED OXIDE COATINGS ON ALUMINUM
FR1596808A (en) * 1968-12-06 1970-06-22
US3654100A (en) * 1969-05-31 1972-04-04 Riken Almite Industry Co Ltd Process of forming colored anode oxidized film on aluminummaterial
FR2052100A5 (en) * 1969-07-16 1971-04-09 Cegedur Gp
US3751350A (en) * 1972-03-03 1973-08-07 Aiden Kk Process for coloring an aluminum anodic oxide film
US3798137A (en) * 1972-03-22 1974-03-19 Aluminum Co Of America Direct current pigmenting of anodized aluminum

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056478A1 (en) * 1981-01-16 1982-07-28 Ronain, S.A. Process for electrolytically colouring a piece of aluminium or aluminium alloy
GB2187760A (en) * 1986-02-21 1987-09-16 Kinki Yakuhin Kogyo Kk Electrolytic colouring of chromium alloy
GB2187760B (en) * 1986-02-21 1990-08-22 Kinki Yakuhin Kogyo Kk Electrolytic coloring method for chromium alloy

Also Published As

Publication number Publication date
DE2440540A1 (en) 1975-03-06
FR2241634B1 (en) 1979-01-05
DE2440540B2 (en) 1976-09-30
NO139693B (en) 1979-01-15
FR2241634A1 (en) 1975-03-21
CA1034900A (en) 1978-07-18
CH588568A5 (en) 1977-06-15
DE2440540C3 (en) 1979-06-13
JPS5044939A (en) 1975-04-22
IT1019085B (en) 1977-11-10
NO139693C (en) 1979-04-25
NO743024L (en) 1975-03-24
US3878056A (en) 1975-04-15
JPS5339865B2 (en) 1978-10-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee