ORIGINAL PLATE FOR LITHOGRAPHIC PRINTING

Title:

ORIGINAL PLATE FOR LITHOGRAPHIC PRINTING

Document Type and Number:

Japanese Patent JP2006267290

Kind Code:

A

Abstract:

To provide an original plate for infrared laser-sensitive lithographic printing having good chemical resistance, capable of realizing excellent dissolution discrimination, and excellent in image reproducibility.

The original plate for lithographic printing has on a support a positive recording layer containing a polymer having a urea bond in a side chain and an acid-coloring dye represented by formula (1) wherein rings A, B and C each independently represents a mono- to trinuclear aromatic hydrocarbon group or aromatic heterocyclic group, at least one of the rings B and C has at least one substituent selected from the group consisting of amino, alkoxy, aryloxy, alkylthio and arylthio. W1 represents carbonyl, thiocarbonyl or the like; Q1 represents O, S or imino; R11-R14 each independently represents H or a hydrocarbon group; and m and n each independently represents 0 or 1.

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Inventors:

NAGASHIMA AKIRA

Application Number:

JP2005082767A

Publication Date:

October 05, 2006

Filing Date:

March 22, 2005

Export Citation:

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Assignee:

FUJI PHOTO FILM CO LTD

International Classes:

G03F7/004; G03F7/00; G03F7/033

Attorney, Agent or Firm:

Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda

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