Actinically imageable and infrared heated printing plate

Details Actinically imageable and infrared heated printing plate Actinically imageable and infrared heated printing plate

2005-04-26

2005-04-26

Chu, John S. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

C430S175000, C430S287100, C430S288100, C430S302000

Reexamination Certificate

active

06884561

ABSTRACT:
A negative-working lithographic printing plate has a coating which is imaged by heating an area of the coating with an infrared laser and actinically reacting the coating in the heated area with ultraviolet or visible radiation. The coating contains an infrared absorber but the coating is not imageable by infrared radiation or by the heat generated. The imaging time is reduced since the actinic reaction rate is increased at the elevated temperature.

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