Xerox Corporation

Daniel Lafontaine

Biby Esther Abraham

Santiago Faucher

Enno Eric Agur

Frank Ping-Hay Lee

Aurelian Valeriu Magdalinis

Karina Lopez

Jonathan Lisk

A process for preparing a pigment dispersion including melting a phase change ink carrier and an optional dispersant at a temperature of from about 100&#xb0; C. to about 170&#xb0; C. in a jacketed vessel comprising a jacket surrounding an immersion mill or basket mill attachment and a dispersion blade attachment disposed within the jacketed vessel; mixing the melted phase change ink carrier and optional dispersant with a dispersion blade in the jacketed vessel; adding a pigment to the melted, mixed phase change ink carrier and optional dispersant in the jacketed vessel; wetting the pigment; after pigment wetting, reducing the pigment particle size using an immersion mill or basket mill attachment in the jacketed vessel; and discharging the pigment dispersion.

Phase change ink pigment dispersion process

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Calgary, Canada

Daniel Lafontaine