Directly imageable waterless planographic printing plate...

Details Directly imageable waterless planographic printing plate... Directly imageable waterless planographic printing plate...

2005-11-15

2005-11-15

Gilliam, Barbara 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

C430S272100, C430S278100, C430S280100, C101S454000

Reexamination Certificate

active

06964841

ABSTRACT:
The invention is a directly imageable waterless planographic printing plate precursor comprising: at least a heat insulating layer, a heat sensitive layer, and an ink repellent layer that are provided in that order on a substrate, wherein a transmittance of the heat insulating layer for a light having a wavelength within a range of 400 to 650 nm is at most 15% over the entire range of the wavelength. The invention provides a directly imageable waterless planographic printing plate precursor that allows measurement of the dot area ratio on the printing plate with a densitometer or the like.

REFERENCES:
patent: 5919600 (1999-07-01), Huang et al.
patent: 6284433 (2001-09-01), Ichikawa et al.
patent: 6344306 (2002-02-01), Fujiyoshi et al.
patent: 2002/0045131 (2002-04-01), Nagase et al.
patent: 1038669 (2000-09-01), None
European Search Report dated May 17, 2005.

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