Method of producing support for planographic printing plate

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

1994-08-31

1996-05-21

Valentine, Donald R.

Electrolysis: processes, compositions used therein, and methods

Electrolytic erosion of a workpiece for shape or surface...

Simple alternating current

205661, 205674, 205685, C25F 304

Patent

active

055185894

ABSTRACT:
A method of producing a support for a planographic printing plate which comprises roughening a surface of an aluminum plate electrochemically, etching the surface by 0.01 to 20 g/m.sup.2 with alkali, and roughening the surface electrochemically in an electrolytic solution containing hydrochloric acid and/or a water-soluble hydrochloride salt which forms hydrochloride ion or nitric acid and/or a water-soluble nitrate salt which forms nitrate ion as the principle component.

REFERENCES:
patent: 4721552 (1988-01-01), Huang et al.
patent: 5141605 (1992-08-01), Nishino et al.
patent: 5186795 (1993-02-01), Hall
Patent Abstracts of Japan, Abstract of JP-A-60-190392, Feb. 14, 1986.
Derwent Abstract of JP-A-54-085802 no date.

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