Lithographic printing plate precursor and lithographic printing method
申请人:Fuji Photo Film Co., Ltd.
公开号:EP1754614A1
公开(公告)日:2007-02-21
The invention is directed to a lithographic printing plate precursor comprising a support and an image-recording layer, wherein the image-recording layer comprises (1) an infrared absorber and (2) a photochromic compound. The invention is also directed to a method of plate making and a lithographic printing method, each method using the lithographic printing plate precursor.
Photochromism of diarylethene derivatives in rigid polymer matrix: structural dependence, matrix effect, and kinetics
作者:Doo-Hyung Kwon、Hee-Won Shin、Eunkyoung Kim、Doo Wan Boo、Yong-Rok Kim
DOI:10.1016/s0009-2614(00)00893-9
日期:2000.9
Photochromic reactions of three diarylethene derivatives embedded in three types of polymer matrices were studied using a variety of spectroscopic techniques and quantum ab initio computations. It was found that the photochromic efficiencies of diarylethene molecules depend on the structural and electronic characteristics of Franck-Condon region in the excited states, and also depend strongly on the sizes of free inner spaces of the matrices. The steady-state and time-resolved fluorescence studies revealed the detailed kinetics of the planar and twisted conformers in the excited states, The observed fluorescence lifetimes of the planar and twisted conformers were similar to 2.6 ns and 8 similar to 30 ns. (C) 2000 Published by Elsevier Science B.V.
Lithographic Printing Plate Precursor and Lithographic Printing Method
申请人:KAKINO Ryuki
公开号:US20070082291A1
公开(公告)日:2007-04-12
An image-recording material containing (A) a compound having a specific partial structure and at least one group selected from an acid group having a pKa of 11 or less, the derivative of the acid group and a group capable of generating the acid group, a lithographic printing plate precursor having an image-recording layer containing the compound (A), and a lithographic printing method using the lithographic printing plate precursor, are provided.