Method for producing planographic printing plate

Details Method for producing planographic printing plate Method for producing planographic printing plate

1999-01-06

2000-07-04

Baxter, Janet

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430331, 430435, G03F 7004

Patent

active

060836644

ABSTRACT:
A method for producing a planographic printing plate comprising the steps of: producing an original planographic printing plate which comprises a substrate, and a first layer and an ink-repellent layer having an ink-repellent surface in that order on said substrate, wherein the first layer converts laser light to heat and enables peeling of upper layers disposed on said first layer; exposing said original planographic printing plate by laser light; and rubbing the surface of said original planographic printing plate, which is the surface of said ink-repellent layer, with a rubbing member in the presence of an aqueous solution containing a nonionic surfactant to physically remove laser-exposed portions of said ink-repellent layer, thereby forming the planographic plate, is provided.

REFERENCES:
patent: 4963472 (1990-10-01), Schlosser et al.
patent: 5260167 (1993-11-01), Sasa et al.
patent: 5334486 (1994-08-01), Abe et al.
patent: 5786125 (1998-07-01), Tsuchiya et al.
patent: 5871883 (1999-02-01), Hirano et al.
patent: 5958652 (1999-09-01), Suezawa et al.

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