Planographic printing method and planographic printing plate...

Details Planographic printing method and planographic printing plate... Planographic printing method and planographic printing plate...

2007-12-11

2007-12-11

Gilliam, Barbara L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S281100, C430S286100, C430S288100, C430S309000, C430S494000, C430S944000, C430S945000, C430S138000

Reexamination Certificate

active

11050037

ABSTRACT:
A planographic printing method including: providing a planographic printing plate precursor including a substrate and an image recording layer which is disposed on the substrate and contains (A) an infrared absorber, (B) a polymerization initiator and (C) a polymerizable compound; imagewise exposing the planographic printing plate precursor with an infrared laser; and supplying oil-based ink and an aqueous component to the exposed planographic printing plate precursor without any development treatment, so as to print an image. A region of the planographic printing plate precursor that has not been exposed with an infrared laser is removed during the printing. The polymerizable compound of (C) is represented by the following formula (1):wherein Ar1, R1, Z and n are as defined in the claims and the specification.

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