Laser production of lithographic printing plates

Details Laser production of lithographic printing plates Laser production of lithographic printing plates

1973-12-19

1977-10-18

Coughenour, Clyde I.

Printing

Planographic

Lithographic plate making, and processes of making or using...

101455, 346 76L, B41C 110, B41M 524, B41N 114

Patent

active

040540944

ABSTRACT:
The use of a laser beam to etch the surface of a printing plate made from a polymer composition on a metal or plastic base and a thin top coating of a hard hydrophilic material produces a lithographic printing plate capable of accepting ink in the etched region and accepting water in the unetched regions.

REFERENCES:
patent: 2311047 (1943-02-01), Hagelin
patent: 2714066 (1955-07-01), Jewett et al.
patent: 3016823 (1962-01-01), Thurlow
patent: 3064562 (1962-11-01), Deal
patent: 3470013 (1969-09-01), Wagner
patent: 3506779 (1970-04-01), Brown et al.
patent: 3560994 (1971-02-01), Wolfe et al.
patent: 3574657 (1971-04-01), Burnett
patent: 3650742 (1972-03-01), Etter et al.
patent: 3650743 (1972-03-01), Hallman et al.
patent: 3773514 (1973-11-01), Fromson

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