Process and arrangement for production of printing plate support

Details Process and arrangement for production of printing plate support Process and arrangement for production of printing plate support

1988-05-03

1990-01-30

Valentine, Donald R.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412975, 204DIG9, 2041295, C25F 304

Patent

active

048971685

ABSTRACT:
The present invention relates to a roughened printing plate support of aluminum or an alloy thereof, which shows equally distributed tubular depressions. Furthermore, a process for the production of the printing plate-support is disclosed, in which roughening is performed in an acidic electrolyte by means of a pulsed direct current. The invention also relates to arrangements which are suitable for carrying out the process.

REFERENCES:
patent: 2755238 (1956-07-01), Turner
patent: 3477929 (1969-11-01), Mamikata et al.
patent: 3935080 (1976-01-01), Gumbinner et al.
patent: 4087341 (1978-05-01), Takahashi et al.
patent: 4301229 (1981-11-01), Sakaki et al.
patent: 4502925 (1985-03-01), Walls
patent: 4714528 (1987-12-01), Takeuchi et al.

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