Lithography plate with a chromium surface and method for imaging

Details Lithography plate with a chromium surface and method for imaging Lithography plate with a chromium surface and method for imaging

1989-09-21

1990-09-25

Crowder, Clifford D.

Printing

Planographic

Lithographic printing plates

101467, B41N 108, B41C 110

Patent

active

049585630

ABSTRACT:
A printing member for a press with dampening made by forming on a substrate a chromium layer having an exposed surface with pores or capillaries which render that surface hydrophilic and melting the layer surface at selected image points thereon without contacting the surface so that molten chromium is free to flow to and fill the pores or capillaries at the image points thereby rendering the image points hydrophobic.

REFERENCES:
patent: 3920873 (1975-11-01), Diamond
patent: 4082902 (1978-09-01), Suzuki et al.
patent: 4596760 (1986-06-01), Ballarini et al.
patent: 4718340 (1988-01-01), Love, III

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