Image formation process and planographic printing plate...

Details Image formation process and planographic printing plate... Image formation process and planographic printing plate...

2007-10-30

2007-10-30

Schilling, Richard L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Readily visible image formation

C430S271100, C430S278100, C430S302000, C430S964000

Reexamination Certificate

active

11435244

ABSTRACT:
Disclosed is an image forming method possessing the steps of producing a planographic printing plate via a development treatment of exposing a hydrophilic surface of an aluminum support by removing a thermosensitive image formation layer provided on the hydrophilic surface, that is not imagewise heated on a printing press, after imagewise heating a planographic printing plate material having the thermosensitive image formation layer provided on the hydrophilic surface of the aluminum support, and of treating the planographic printing plate with an ink cleaning agent after printing, wherein the hydrophilic surface is colored by a colorant having a solubility of 5-100 g, based on 1 liter of n-decane, and the colorant on the hydrophilic surface exposed after removing the thermosensitive image formation layer is removed in the above step of treating the planographic printing plate with an ink cleaning agent.

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patent: 2002-211150 (2002-07-01), None

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