GB1351795A - Process for preparing aluminium support base for lithographic printing plate - Google Patents

Process for preparing aluminium support base for lithographic printing plate

Info

Publication number
GB1351795A
GB1351795A GB1141371A GB1141371A GB1351795A GB 1351795 A GB1351795 A GB 1351795A GB 1141371 A GB1141371 A GB 1141371A GB 1141371 A GB1141371 A GB 1141371A GB 1351795 A GB1351795 A GB 1351795A
Authority
GB
United Kingdom
Prior art keywords
anodizing
printing plate
lithographic printing
solution
zrf
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
GB1141371A
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.)
Polychrome Corp
Original Assignee
Polychrome Corp
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 Polychrome Corp filed Critical Polychrome Corp
Publication of GB1351795A publication Critical patent/GB1351795A/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
    • 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
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids

Landscapes

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

Abstract

1351795 Anodizing aluminium POLYCHROME CORP 26 April 1971 [3 Aug 1970] 11413/71 Addition to 1235863 Heading C7B A lithographic printing plate comprising an Al supporting base and a light-sensitive coating thereon is made by graining a surface of an Al sheet with a wet mass of hard abrasive particles, anodizing the grained surface to form a hard, dark, steel-grey, lustreless surface, and treating the anodized surface with an undercoating bonding substance prior to coating a lightsensitive composition. The abrasive may be silicate (of Al, K, Na), oxide (of Al, Si) or sulphate (of Mg), e.g. pumice or quartz. Graining may be by machine or hand rubbing using moistened abrasive particles or a slurry or suspension thereof. The Al sheet may be initially degreased and cleaned in NaOH solution. Anodizing may be effected in 8-22% H 2 SO 4 solution at 10-20 volts and C.D. of 10-20 A.S.F. The anodized layer may be sealed.. The undercoating substance may be a solution of alkali metal silicate, silicic acid, alkali metal (e.g. K 2 ) ZrF 6 or H 2 ZrF 6 . The light-sensitive composition may be a condensation product of paraformaldehyde and p-diazo-diphenylamine with tetrahydroxybenzophenone.
GB1141371A 1970-08-03 1971-04-26 Process for preparing aluminium support base for lithographic printing plate Expired GB1351795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6062570A 1970-08-03 1970-08-03

Publications (1)

Publication Number Publication Date
GB1351795A true GB1351795A (en) 1974-05-01

Family

ID=22030712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1141371A Expired GB1351795A (en) 1970-08-03 1971-04-26 Process for preparing aluminium support base for lithographic printing plate

Country Status (6)

Country Link
JP (1) JPS5146003B1 (en)
CA (1) CA971809A (en)
DE (1) DE2130391A1 (en)
FR (1) FR2103826A6 (en)
GB (1) GB1351795A (en)
SE (1) SE371780B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19929716B4 (en) * 1998-06-29 2006-07-06 Okamoto Chemical Industry Co. Ltd. Process for preparing an aluminum substrate for a lithographic printing plate and for producing a presensitized lithographic printing plate

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148649A (en) * 1977-02-09 1979-04-10 Polychrome Corporation Method for producing lithographic printing plates
US4183788A (en) * 1978-02-28 1980-01-15 Howard A. Fromson Process for graining an aluminum base lithographic plate and article thereof
DE3012135C2 (en) * 1979-03-29 1986-10-16 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Support for lithographic printing plates, process for its manufacture and its use in the manufacture of presensitized printing plates
DE3910213A1 (en) * 1989-03-30 1990-10-11 Hoechst Ag METHOD AND DEVICE FOR Roughening A SUPPORT FOR LIGHT-SENSITIVE LAYERS
DE19859216A1 (en) 1998-12-21 2000-06-29 Agfa Gevaert Ag Method and device for roughening a support for photosensitive layers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19929716B4 (en) * 1998-06-29 2006-07-06 Okamoto Chemical Industry Co. Ltd. Process for preparing an aluminum substrate for a lithographic printing plate and for producing a presensitized lithographic printing plate

Also Published As

Publication number Publication date
DE2130391A1 (en) 1972-02-10
JPS5146003B1 (en) 1976-12-07
SE371780B (en) 1974-12-02
FR2103826A6 (en) 1972-04-14
CA971809A (en) 1975-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years