Apparatus and process for making lithographic printing plate wit

Details Apparatus and process for making lithographic printing plate wit Apparatus and process for making lithographic printing plate wit

1982-04-20

1984-05-29

Griffin, Donald A.

Photocopying

Contact printing

Machine

101467, G03B 2730, B41C 110

Patent

active

044511450

ABSTRACT:
Lithographic printing plates are made by exposing to actinic light a lithographic plate having a water soluble light sensitive layer thereon and a coating of a solvent soluble, UV curable material thereover to form an image in the light sensitive layer and adhere said layer to the overlying UV curable material. The plate is developed with water to remove light sensitive layer and overlying UV curable material in the non-image areas, and the plate is exposed to UV source having an intensity greater than the imaging light to form a press-ready plate having a durable, reinforced cured image thereon.

REFERENCES:
patent: 3145104 (1964-08-01), Oster et al.
patent: 3520606 (1970-07-01), Gush et al.
patent: 3848998 (1974-11-01), Yonekura et al.
patent: 3905815 (1975-09-01), Bonham
patent: 3981583 (1976-09-01), Tsuchida et al.
patent: 4020762 (1977-05-01), Peterson
patent: 4042613 (1977-08-01), Takanizawa et al.
patent: 4070110 (1978-01-01), Ott
patent: 4104072 (1978-08-01), Golda et al.
patent: 4232105 (1980-11-01), Shinohara et al.

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