- Patent Title: White dry ink pulverized toner composition and formulation thereof
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Application No.: US15170929Application Date: 2016-06-01
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Publication No.: US09964883B2Publication Date: 2018-05-08
- Inventor: Varun Sambhy , Kirk L. Stamp , Juan A. Morales-Tirado
- Applicant: XEROX CORPORATION
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Caesar Rivise, PC
- Main IPC: G03G9/09
- IPC: G03G9/09 ; B41M5/50 ; G03G9/08 ; G03G9/087 ; G03G9/097

Abstract:
An apparatus and method of manufacturing a white dry ink pulverized toner including a resin and 15%-45% TiO2 pigment having a mean size of 100-350 nm melt mixed with the resin in a twin screw extruder resulting in an extruded mix. The extruded mix is pulverized in a fluid bed jet mill. Fines of the pulverized extruded mix less than 5 microns may be removed from the pulverized extruded mix by classification leaving pulverized particles having a mean size of 6-12 microns. The pulverized particles are blended in a mixer with surface additives including silica and ZnSt, and the white dry ink pulverized toner has a developer charge between 5 and 50 μC/gram and a Lightness (L*) of at least 75 at a toner mass per unit area (TMA) of at most 1.2 mg/cm2.
Public/Granted literature
- US20170351190A1 WHITE DRY INK PULVERIZED TONER COMPOSITION AND FORMULATION THEREOF Public/Granted day:2017-12-07
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