Xeroprinting with photopolymer master
AssigneeE. I. Du Pont de Nemours and Company
InventorsJames Riesenfeld, William Bindloss, Graciella Blanchet, Rolf Dessauer, Alan S. Dubin
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Abstract
Xeroprinting process involving imagewise exposing a photopolymer master, charging on a conductive support, toning with dry or liquid electrostatic toner, and transferring to another surface. Photopolymer systems comprising preferred combinations of polymeric binders, ethylenically unsaturated monomers. HABI initiators and chain transfer agents.
Claims22
A xeroprinting process which utilizes a suspension of electrostatically charged toner particles in a dispersant liquid to develop an oppositely-charged electrostatic image on a photopolymer master and which comprises the steps:
- (1) imagewise exposing to actinic radiation an electrostatic photopolymer master having a photopolymerizable resistivity in exposed areas of the layer;
- (2) without removing unexposed areas of the layer, charging the master by corona discharge while on a conductive support to form a latent image of electrostatic charge on the exposed areas;
- (3) developing the image by applying to both exposed and unexposed areas of the master the suspension of oppositely charged electrostatic toner particles;
- and
- (4) transferring the toner image to another surface.
Dependencies are inferred from the claim text.