Invention Grant
- Patent Title: Toner comprising colorant wax dispersion
-
Application No.: US14256941Application Date: 2014-04-19
-
Publication No.: US09639017B2Publication Date: 2017-05-02
- Inventor: Frank Ping-Hay Lee , Richard P. N. Veregin , Shigang S. Qiu , Michael J. D'Amato , Aurelian Valeriu Magdalinis , David John William Lawton
- Applicant: Xerox Corporation
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Marylou J. Lavoie, Esq. LLC
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/09 ; G03G9/08 ; G03G9/093

Abstract:
A toner including a resin; and a colorant wax comprising a plurality of colorant wax particles comprising a colorant core surrounded by a wax shell, wherein the colorant wax particles exhibit a particle size distribution of from about 150 nanometers to less than about 300 nanometers; and wherein the colorant wax is prepared by (a) melting and mixing a dry colorant with at least one wax to form a colorant concentrate, wherein the colorant concentrate contains at least 25 percent by weight of colorant; (b) milling the colorant concentrate of step (a) to form a milled colorant concentrate; (c) combining the milled colorant concentrate of (b) with water and dispersing to form the plurality of colorant wax particles; wherein the melting and mixing of step (a) and the milling of step (b) is done in an immersion media mill; and wherein the combining of step (c) is done using a piston homogenizer.
Public/Granted literature
- US20150301463A1 Toner Comprising Colorant Wax Dispersion Public/Granted day:2015-10-22
Information query