Other

Xerox Corporation

Macdermid Graphics Solutions, LLC

Christine Anderson

Marcel Philippe Breton

Edward Graham Zwartz

Stephan V Drappel

C Geoffrey Allen

James Daniel Mayo

Kimberly D Nosella

Raymond W Wong

T Brian McAneney

Christopher A Wagner

Vladislav Skorokhod

Ryan W Vest

T Brian Mcaneney

A method of selectively exposing a liquid photopolymer printing blank to actinic radiation to create a relief image printing plate. The printing blank is produced by (i) placing a photographic negative on a bottom glass platen and placing a coverfilm over the negative, (ii) disposing a layer of liquid photopolymer on top of the coverfilm and negative, and (iii) placing a backing sheet over the liquid photopolymer layer. The method includes the steps of scanning a light bar across an upper surface of the liquid photopolymer printing blank through the backing sheet to cure the layer of liquid photopolymer in selected areas, creating islands of cured polymer adjacent to the backing sheet, and imaging the photopolymer through the bottom of the liquid photopolymer printing blank to crosslink and cure selective portions of the liquid photopolymer and create a relief image therein. The relief image is created on the cured islands.

Method of making relief image printing plates

A method of making a phase change ink composition includes adding to a device with a stirring element at least one pigment, at least one dispersant and at least one synergist, processing the device at an elevated temperature and at a stirring rate to wet the at least one pigment to obtain an ink concentrate, and mixing the ink concentrate with an ink vehicle to obtain the ink composition. The device may be an extruder, an attritor or the like. The method allows for the reduction in the amount of dispersant to include in the ink.

Method of making a pigmented phase change ink with dispersant and synergist

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Atlanta, GA, United States of America

Christine Anderson