Method of manufacturing support for planographic printing plate

Details Method of manufacturing support for planographic printing plate Method of manufacturing support for planographic printing plate

1997-06-10

2000-01-18

Chapman, Mark

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430300, 205214, 205646, 205704, 216102, 216103, G03C 152, C25F 102

Patent

active

06015649&

ABSTRACT:
A method of manufacturing a support of a presensitized planographic printing plate is disclosed, the method comprising electrolytically surface-roughening an aluminum plate or an aluminum alloy plate in an acidic electrolyte solution, the surface-roughening step comprising plural pairs of first high surface-roughening rate steps and second low or zero surface-roughening rate steps, the first step and the second step being carried out alternately, wherein an average quantity of electricity of 100 C/dm.sup.2 or less is applied at one of the first steps.

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Derwent Abstract of JP 880071629 Sep. 1989.

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