Method of making a printing plate for newspaper printing

Details Method of making a printing plate for newspaper printing Method of making a printing plate for newspaper printing

1996-08-29

1998-08-18

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce printing surface

430 44, G03G 1326

Patent

active

057956898

ABSTRACT:
By increasing the printing-plate-making speed in a laser-direct-drawing-from-computer type plate making system, the plate size can be increased without large-scale expansion of the plate making facilities, and the operation time of the rotary press is thereby improved to increase the number of newspaper prints. The invention provides a printing-plate-making method for newspaper printing designed to enable figure-drawing corresponding to drawing image signals from an electronic computer by laser beam. A plurality of laser scanning heads are provided in an electrostatic charging and figure-drawing image signals from the electronic computer to draw similar or different figures on a plurality of plates in parallel. The plates thus drawn are then subjected to a developing and fixing section, an elution section, post-treatment section, etc.

REFERENCES:
patent: 4149798 (1979-04-01), McGowan et al.
patent: 5519469 (1996-05-01), Obata

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