Process for the electrophotographic production of printing plates
AssigneeHoechst Aktiengesellschaft
InventorErwin Lind
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Abstract
This invention relates to an electrophotographic process for the production of a printing form which comprises electrostatically charging a supported photoconductive and photopolymerizable layer, exposing the charged layer to light under a master, developing the resulting latent image with an electroscopic material, again exposing the layer to light, and removing the developed image areas from the support.
Claims4
A negative-working reproduction process for the production of a printing form which comprises charging a supported homogeneous layer, exposing the charged layer to light under a master, developing the resulting latent image with an electroscopic material, again exposing the layer to light for not more than about 2 minutes, and removing the developed image areas from the support, said layer consisting essentially of a simultaneously photoconductive and photopolymerizable compound of the formula ##EQU2## in which R.sub.1 is dialkylaminophenyl and R.sub.2 is selected from the group consisting of phenyl or chlorophenyl.
Dependencies are inferred from the claim text.