Apparatus for making lithographic printing plates

Details Apparatus for making lithographic printing plates Apparatus for making lithographic printing plates

1982-04-20

1983-08-02

Griffin, Donald A.

Photocopying

Contact printing

Machine

1014631, 430156, G03B 2730, G03C 152, G03F 708

Patent

active

043962840

ABSTRACT:
Lithographic printing plates are made by exposing to actinic light a lithographic plate having a water soluble light sensitive layer thereon to form an image in said layer. A solvent soluble, UV curable material is adhered to the image in said layer. The plate is developed before or after applying the UV curable material. 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: 3936853 (1976-02-01), Mart
patent: 3981583 (1976-09-01), Tsuchida et al.
patent: 4020762 (1977-05-01), Peterson
patent: 4042613 (1977-08-01), Takamizawa 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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