GB1532304A - Printing plates and a process for their manufacture - Google Patents

Printing plates and a process for their manufacture

Info

Publication number
GB1532304A
GB1532304A GB3503176A GB3503176A GB1532304A GB 1532304 A GB1532304 A GB 1532304A GB 3503176 A GB3503176 A GB 3503176A GB 3503176 A GB3503176 A GB 3503176A GB 1532304 A GB1532304 A GB 1532304A
Authority
GB
United Kingdom
Prior art keywords
aluminium
manufacture
solution
printing plates
produced
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
GB3503176A
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of GB1532304A publication Critical patent/GB1532304A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Flat-bed printing plate carriers made of aluminium are produced by graining the aluminium surface in an agitated aqueous electrolyte solution. The electrolyte solution contains at least one water-soluble aluminium salt in a concentration of from 200 g/l up to the saturation limit of the solution in terms of the salt. The solution has a pH of from 1 to 5. Only small amounts of the electrolytes used are consumed by the process. The aluminium which has been removed is produced as a precipitate and can easily be removed.
GB3503176A 1975-08-25 1976-08-23 Printing plates and a process for their manufacture Expired GB1532304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752537725 DE2537725C3 (en) 1975-08-25 1975-08-25 Use of a process for the electrochemical roughening of aluminum in the production of planographic printing plate carriers

Publications (1)

Publication Number Publication Date
GB1532304A true GB1532304A (en) 1978-11-15

Family

ID=5954763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3503176A Expired GB1532304A (en) 1975-08-25 1976-08-23 Printing plates and a process for their manufacture

Country Status (11)

Country Link
JP (1) JPS60236B2 (en)
AT (1) AT352150B (en)
BE (1) BE845431A (en)
BR (1) BR7605510A (en)
CA (1) CA1077434A (en)
CH (1) CH622466A5 (en)
DE (1) DE2537725C3 (en)
FR (1) FR2322015A1 (en)
GB (1) GB1532304A (en)
NL (1) NL187107C (en)
SE (1) SE7609309L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268790A2 (en) 1986-10-17 1988-06-01 Hoechst Aktiengesellschaft Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201836A (en) * 1978-08-28 1980-05-06 Polychrome Corporation Aluminum substrates grained with a saturated solution of aluminum salts of mineral acids
US4242417A (en) * 1979-08-24 1980-12-30 Polychrome Corporation Lithographic substrates
DE3222967A1 (en) * 1982-06-19 1983-12-22 Hoechst Ag, 6230 Frankfurt METHOD FOR REMOVING MODIFICATION OF ELECTROCHEMICALLY Roughened SUPPORT MATERIALS MADE OF ALUMINUM AND THE USE THEREOF IN THE PRODUCTION OF OFFSET PRINTING PLATES
DE3118151A1 (en) * 1981-05-07 1982-12-02 Siemens AG, 1000 Berlin und 8000 München METHOD FOR ETCHING A RECRYSTALLIZED ALUMINUM FILM FOR ELECTROLYTE CAPACITORS
JPH028640U (en) * 1988-06-30 1990-01-19

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756216C (en) * 1936-12-19 1952-10-13 Siemens & Halske A G Electrolytic process for roughening the surface of an electrode, especially for electrolytic capacitors
US2209712A (en) * 1937-05-06 1940-07-30 Joseph B Brennan Method of treating aluminum
GB896563A (en) * 1959-12-10 1962-05-16 Algraphy Ltd Improvements in or relating to the graining of lithographic plates
US3193485A (en) * 1960-09-20 1965-07-06 Plessey Co Ltd Electrolytic treatment of aluminium for increasing the effective surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0268790A2 (en) 1986-10-17 1988-06-01 Hoechst Aktiengesellschaft Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates
US4786381A (en) * 1986-10-17 1988-11-22 Hoechst Aktiengesellschaft Process for electrochemically modifying support materials of aluminum or aluminum alloys, which have been grained in a multi-stage process and use of these materials in the manufacture of offset-printing plates

Also Published As

Publication number Publication date
FR2322015A1 (en) 1977-03-25
JPS5226905A (en) 1977-02-28
NL7609348A (en) 1977-03-01
DE2537725A1 (en) 1977-03-10
DE2537725B2 (en) 1980-06-19
NL187107C (en) 1991-06-03
AT352150B (en) 1979-09-10
JPS60236B2 (en) 1985-01-07
DE2537725C3 (en) 1981-02-19
SE7609309L (en) 1977-02-26
CA1077434A (en) 1980-05-13
BR7605510A (en) 1977-08-16
CH622466A5 (en) 1981-04-15
ATA623576A (en) 1979-02-15
FR2322015B1 (en) 1982-10-22
BE845431A (en) 1977-02-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920823