Color image-forming material and lithographic printing plate...

Details Color image-forming material and lithographic printing plate... Color image-forming material and lithographic printing plate...

2007-05-15

2007-05-15

Schilling, Richard L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S292000, C430S302000, C430S334000, C430S339000, C430S964000

Reexamination Certificate

active

11209696

ABSTRACT:
A color image-forming material capable of drawing an image by infrared laser exposure and excellent in image visibility, storage stability and white light stability, and an on-press development or non-processing (non-development) type lithographic printing plate precursor ensuring high sensitivity and high press life and being excellent in image visibility, on-press developability and the like, are provided, which are a color image-forming material comprising an image recording layer capable of drawing an image by infrared laser exposure, the color image-forming material forming a color image without passing through a development processing step after image recording, wherein the image recording layer comprises (A) an infrared absorbent, (B) a cyclic color-forming compound having a cyclic structure within the molecule and forming a dye by a ring opening, and (C) a dye stabilizer which is a compound interacting with the cyclic color-forming compound to stabilize the ring-opened dye body and cause color formation and which is released from the interaction upon laser exposure to decrease in the color formation; and a lithographic printing plate precursor using this color image-forming material.

REFERENCES:
patent: 6110646 (2000-08-01), Urano et al.
patent: 6399279 (2002-06-01), Urano et al.
patent: 6596457 (2003-07-01), Hidaka et al.
patent: 2938397 (1999-06-01), None
patent: 11-277927 (1999-10-01), None
patent: 2001-277740 (2001-10-01), None
patent: 2002-287334 (2002-10-01), None

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