MANUFACTURE OF LITHOGRAPHIC PRINTING PLATE BY ELECTROPLATING

PROBLEM TO BE SOLVED: To enable a lipophilic metallic image to a formed and also a lithographic printing plate to be operated for a long time by applying an lipophilic metallic ion solution to the surface of a hydrophilic metallic layer using an ink jet as per an image and reducing this ion by elect...

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Bibliographic Details
Main Author VAN ROMPUY LUDO
Format Patent
LanguageEnglish
Published 25.01.2000
Edition7
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
LINING MACHINES
MAGNETOGRAPHY
PERFORMING OPERATIONS
PHOTOGRAPHY
PHYSICS
PRINTING
PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PROBLEM TO BE SOLVED: To enable a lipophilic metallic image to a formed and also a lithographic printing plate to be operated for a long time by applying an lipophilic metallic ion solution to the surface of a hydrophilic metallic layer using an ink jet as per an image and reducing this ion by electroplating. SOLUTION: An lipophilic metallic ion solution is applied to the surface of a hydrophilic metallic layer using an ink jet as per an image, and this ion is reduced by electroplating to obtain a lipophilic metallic image. The lipophilic metallic ion solution is preferably copper pyrrolinate or copper nitrate. The hydrophilic metallic layer is preferably an aluminum support which has a surface roughed electrochemically and is anodized. The lipophilic metallic ion solution is supplied to an ink jet head and microdots of the solution are jetted to the surface of a hydrophilic metallic base in accordance with a pattern which is preset and issued by a computer. After that, the lipophilic metallic ion is reduced by electroplating.
Bibliography:Application Number: JP19990063229