Light sensitive materials for lithographic printing plates

US4770961A · kind A · utility

Assignee

• MITSUBISHI PAPER MILLS LIMITED · JP

Inventors

• Akira Tanaka · Osaka, JP
• Eiji Kanada · Tokyo, JP
• Yoshikazu Takaya · Nagaokakyo, JP
• Masahiko Saikawa · Tokyo, JP
• Hidetoshi Miura · Nagaokakyo, JP

Key dates

• Filing date: Oct 30, 1986
• Grant date: Sep 13, 1988
• Expiry date: Oct 30, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/145
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Disclosed is a light sensitive material for lithographic printing plate which comprises a support and at least a silver halide emulsion layer and a surface physical development nuclei layer provided on said support wherein said silver halide emulsion layer contains at least one of the sensitizing dyes represented by the following general formulas (I), (II), (III), (IV) and (V): PA0 General formula (I) ##STR1## General formula (II) ##STR2## General formula (III) ##STR3## General formula (IV) ##STR4##