EP0007234A3 - A process for the anodic treatment of a continuous web of aluminium foil, foil so obtained and its application as a lithographic printing plate - Google Patents

A process for the anodic treatment of a continuous web of aluminium foil, foil so obtained and its application as a lithographic printing plate Download PDF

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Publication number
EP0007234A3
EP0007234A3 EP79301378A EP79301378A EP0007234A3 EP 0007234 A3 EP0007234 A3 EP 0007234A3 EP 79301378 A EP79301378 A EP 79301378A EP 79301378 A EP79301378 A EP 79301378A EP 0007234 A3 EP0007234 A3 EP 0007234A3
Authority
EP
European Patent Office
Prior art keywords
foil
printing plate
lithographic printing
application
continuous web
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.)
Granted
Application number
EP79301378A
Other versions
EP0007234B1 (en
EP0007234A2 (en
Inventor
Alan Thomas
David Philip Rowlands
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10498400&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0007234(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BICC PLC filed Critical BICC PLC
Priority to AT79301378T priority Critical patent/ATE885T1/en
Publication of EP0007234A2 publication Critical patent/EP0007234A2/en
Publication of EP0007234A3 publication Critical patent/EP0007234A3/en
Application granted granted Critical
Publication of EP0007234B1 publication Critical patent/EP0007234B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/03—Chemical or electrical pretreatment
    • B41N3/034—Chemical or electrical pretreatment characterised by the electrochemical treatment of the aluminum support, e.g. anodisation, electro-graining; Sealing of the anodised layer; Treatment of the anodic layer with inorganic compounds; Colouring of the anodic layer
    • 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
    • C25D11/12—Anodising more than once, e.g. in different baths

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

Aluminium web (1) is passed through a first bath (2) containing phosphate ions and a socond bath (3) containing sulphate ions and is anodised by passing alternating current between electrodes (4, 5) immersed one in each bath. The product is especially suitable for use as a base for a presensitised lithographic printing plate.
EP79301378A 1978-07-13 1979-07-12 A process for the anodic treatment of a continuous web of aluminium foil, foil so obtained and its application as a lithographic printing plate Expired EP0007234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79301378T ATE885T1 (en) 1978-07-13 1979-07-12 PROCESS FOR THE CONTINUOUS ANODISING OF ALUMINUM FOIL, ALUMINUM FOIL OBTAINED IN THIS WAY AND ITS USE AS A LITHOGRAPHIC PLATE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2970678 1978-07-13
GB7829706 1978-07-13

Publications (3)

Publication Number Publication Date
EP0007234A2 EP0007234A2 (en) 1980-01-23
EP0007234A3 true EP0007234A3 (en) 1980-02-06
EP0007234B1 EP0007234B1 (en) 1982-04-21

Family

ID=10498400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79301378A Expired EP0007234B1 (en) 1978-07-13 1979-07-12 A process for the anodic treatment of a continuous web of aluminium foil, foil so obtained and its application as a lithographic printing plate

Country Status (4)

Country Link
EP (1) EP0007234B1 (en)
AT (1) ATE885T1 (en)
DE (1) DE2962554D1 (en)
ES (1) ES482399A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2088901B (en) * 1980-10-23 1983-12-07 Vickers Ltd Anodised aluminium sheet for lithographic printing plate production
DE3206470A1 (en) * 1982-02-23 1983-09-01 Hoechst Ag, 6230 Frankfurt METHOD FOR THE PRODUCTION OF CARRIER MATERIALS FOR OFFSET PRINTING PLATES
DE3206469A1 (en) * 1982-02-23 1983-09-01 Hoechst Ag, 6230 Frankfurt METHOD FOR THE PRODUCTION OF CARRIER MATERIALS FOR OFFSET PRINTING PLATES
DE3312497A1 (en) * 1983-04-07 1984-10-11 Hoechst Ag, 6230 Frankfurt TWO-STAGE METHOD FOR THE PRODUCTION OF ANODICALLY OXIDIZED FLAT MATERIALS FROM ALUMINUM AND THE USE THEREOF IN THE PRODUCTION OF OFFSET PRINTING PLATES
DE3328048A1 (en) * 1983-08-03 1985-02-21 Hoechst Ag, 6230 Frankfurt METHOD FOR THE TWO-STAGE ANODIC OXIDATION OF CARRIER MATERIALS MADE OF ALUMINUM FOR OFFSET PRINTING PLATES
CN105803505B (en) * 2016-03-18 2018-01-05 西安交通大学 A kind of frequency-changing AC anodizing of aluminium electrolutic capacitor anode aluminium foil
CN105624757B (en) * 2016-03-18 2018-01-05 西安交通大学 A kind of industrial frequency AC anodizing of aluminium electrolutic capacitor anode aluminium foil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1224226A (en) * 1967-10-17 1971-03-03 Ano Coil Ltd Method of, and apparatus for, electrolytically roughening and oxidizing foils or strips of aluminium
US3929591A (en) * 1974-08-26 1975-12-30 Polychrome Corp Novel lithographic plate and method
FR2331630A1 (en) * 1975-11-13 1977-06-10 Hokusei Aluminium Co Ltd PROCESS FOR TREATING AN ALUMINUM OR ALUMINUM ALLOY SURFACE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1224226A (en) * 1967-10-17 1971-03-03 Ano Coil Ltd Method of, and apparatus for, electrolytically roughening and oxidizing foils or strips of aluminium
US3929591A (en) * 1974-08-26 1975-12-30 Polychrome Corp Novel lithographic plate and method
FR2331630A1 (en) * 1975-11-13 1977-06-10 Hokusei Aluminium Co Ltd PROCESS FOR TREATING AN ALUMINUM OR ALUMINUM ALLOY SURFACE

Also Published As

Publication number Publication date
ATE885T1 (en) 1982-05-15
EP0007234B1 (en) 1982-04-21
DE2962554D1 (en) 1982-06-03
ES482399A1 (en) 1980-04-01
EP0007234A2 (en) 1980-01-23

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