Preparation of relief copies by heating an irradiated...

Details Preparation of relief copies by heating an irradiated... Preparation of relief copies by heating an irradiated...

G - Physics

03

F

96/219

G03F 7/26 (2006.01) G03F 7/38 (2006.01)

Patent

CA 1164712

-21- ABSTRACT OF THE DISCLOSURE Disclosed is a process for the preparation of relief copies, comprising the steps of imagewise irradiating a radiation-sensitive copying materlal comprising a layer support and a radiation-sensitive layer comprising a) a compound which upon irradiation splits off acid, and b) a compound possessing at least one acid-cleavable C-O-C group; heating the imagewise irradiated copying material to a temperature above room temperature for a period of time sufficient to produce an increase in radiation sensitivity of the radiation-sensitive layer; and washing out the irradiated layer areas by means of a developer.

387598

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