Patent ID: 7172847
Filing Date: 2007-02-06
Classification: B41C,B41M

Abstract:
1. A planographic printing plate precursor comprising a substrate and a negative image recording layer provided on the substrate containing: a compound that generates a radical or an acid by light or heat; a polymerizable compound or a crosslinking compound; and an infrared ray absorbing agent, wherein a dynamic friction coefficient of the outermost surface of the planographic printing plate precursor, at the side of the negative image recording layer being provided toward an inserting paper inserted between the planographic printing plate precursors when the planographic printing plate precursors are laminated, is within a range from 0.2 to 0. 7, and wherein an additive is present on the inserted paper or the negative image recording layer which provides the dynamic friction coefficient of the outermost surface of the planographic printing plate precursor.