GB1098180A - Printing plates and method of manufacture thereof - Google Patents

Printing plates and method of manufacture thereof

Info

Publication number
GB1098180A
GB1098180A GB22041/65A GB2204165A GB1098180A GB 1098180 A GB1098180 A GB 1098180A GB 22041/65 A GB22041/65 A GB 22041/65A GB 2204165 A GB2204165 A GB 2204165A GB 1098180 A GB1098180 A GB 1098180A
Authority
GB
United Kingdom
Prior art keywords
copper
layer
electro
chromium
bath
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
GB22041/65A
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.)
Metalgamica S A
Original Assignee
Metalgamica S A
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 Metalgamica S A filed Critical Metalgamica S A
Publication of GB1098180A publication Critical patent/GB1098180A/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
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
    • B41N1/10—Printing plates or foils; Materials therefor metallic for lithographic printing multiple
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/605—Surface topography of the layers, e.g. rough, dendritic or nodular layers
    • C25D5/611—Smooth layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/615—Microstructure of the layers, e.g. mixed structure
    • C25D5/617—Crystalline layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/623—Porosity of the layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance

Landscapes

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

Abstract

A lithographic printing plate comprises a base sheet, a sublayer on the base-plate, a copper ink-receptive layer electro-plated on the sublayer from an acid bath containing a crystal-growth reducing agent, and a non-porous water-receptive chromium layer on the copper layer. The chromium is etched away to expose the parts of the copper layer corresponding to the matter to be printed. The base sheet may be paper, synthetic plastic, aluminium or preferably steel. The steel base is degreased and a copper or nickel sublayer is electro-plated thereon, an alkaline bath being used for the copper layer. If a bright finish is required for the printing plate, a commercial brightener is included in the nickel electro-plating bath. The acid bath for producing the copper ink-receptive layer comprises copper sulphate and sulphuric acid. If a bright finish is desired, crystal growth reducing agents such as animal glue or agar, or a commercial brightener are added. For a matte finish, the crystal growth reducing agent used is a double metal salt such as aluminium potassium sulphate or sodium potassium tartrate. The final chromium layer is applied by electro-plating in a bath containing chromic acid (CrO3) and sulphuric acid, and will have a matte or bright surface depending on the surface of the copper layer underneath the chromium.
GB22041/65A 1964-06-08 1965-05-25 Printing plates and method of manufacture thereof Expired GB1098180A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
MX7750464 1964-06-08
MX7750564 1964-06-08
MX8129265 1965-02-26

Publications (1)

Publication Number Publication Date
GB1098180A true GB1098180A (en) 1968-01-10

Family

ID=27350869

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22041/65A Expired GB1098180A (en) 1964-06-08 1965-05-25 Printing plates and method of manufacture thereof

Country Status (8)

Country Link
US (1) US3280736A (en)
CH (1) CH456659A (en)
CS (1) CS149576B2 (en)
DE (1) DE1496161B2 (en)
FR (1) FR1547360A (en)
GB (1) GB1098180A (en)
NL (1) NL155760B (en)
SE (1) SE333941B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478684A (en) * 1965-11-22 1969-11-18 Schafler Armando B Planographic printing plates
US3459642A (en) * 1966-11-18 1969-08-05 Schafler Armando B Process for preparing a planographic plate
CA964223A (en) * 1969-06-19 1975-03-11 Udylite Corporation (The) Process for acid copper plating of steel
US3869535A (en) * 1969-09-15 1975-03-04 Stauffer Chemical Co Embossing rollers and method of embossing
CA898183A (en) * 1970-05-25 1972-04-18 R. Bharucha Nanabhai Method of plating copper on aluminum
CA1001581A (en) * 1971-11-10 1976-12-14 Canada Wire And Cable Limited Plating copper on aluminum
US4445998A (en) * 1981-12-02 1984-05-01 Toyo Kohan Co., Ltd. Method for producing a steel lithographic plate
US4603634A (en) * 1985-02-04 1986-08-05 Rockwell International Corporation Copper and nickel layered ink metering roller
US4567827A (en) * 1985-02-04 1986-02-04 Rockwell International Corporation Copper and nickel layered ink metering roller
DE3543704A1 (en) * 1985-12-11 1987-06-19 Md Papierfabrik Pasing Nicolau DEVICE AND METHOD FOR PRINTING A TRAIN
DE3636129A1 (en) * 1986-10-23 1988-05-05 Man Technologie Gmbh PRINT FORM FOR FLAT PRINTING
US4996131A (en) * 1987-12-28 1991-02-26 Nouel Jean Marie Offset plate with thin chromium layer and method of making
US4857436A (en) * 1987-12-28 1989-08-15 Nouel Jean Marie Offset plates with two chromium layers
CA2384085C (en) * 1999-09-09 2008-01-08 Universal Engraving, Inc. Non-ferrous/ferromagnetic laminated graphic arts impression dies and method of producing same
US6928926B2 (en) * 2001-03-01 2005-08-16 Creo Il Ltd. Process and material for producing IR imaged gravure cylinders
DE10354760A1 (en) * 2003-11-21 2005-06-23 Enthone Inc., West Haven Process for depositing nickel and chromium (VI) free metallic matte layers
TW200602520A (en) * 2004-07-09 2006-01-16 Stonewell Internat Corp Method of combining wheel hub surface coating and electroplating technique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US758599A (en) * 1897-02-23 1904-04-26 Aluminum Compound Plate Company Printing-plate.
US748004A (en) * 1900-01-27 1903-12-29 American Lithographic Co Printing-form.
US1680097A (en) * 1926-08-31 1928-08-07 William s
IT349271A (en) * 1936-07-11
US2291854A (en) * 1940-02-28 1942-08-04 Interchem Corp Lithographic plate and method of producing it
US2250556A (en) * 1940-11-26 1941-07-29 United Chromium Inc Electrodeposition of copper and bath therefor
US2678909A (en) * 1949-11-05 1954-05-18 Westinghouse Electric Corp Process of electrodeposition of metals by periodic reverse current
US2800438A (en) * 1955-07-26 1957-07-23 Metal & Thermit Corp Chromium plating

Also Published As

Publication number Publication date
CH456659A (en) 1968-07-31
DE1496161B2 (en) 1973-12-20
NL155760B (en) 1978-02-15
SE333941B (en) 1971-04-05
US3280736A (en) 1966-10-25
DE1496161A1 (en) 1969-12-04
NL6507217A (en) 1965-12-09
FR1547360A (en) 1968-11-29
CS149576B2 (en) 1973-07-25

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