WHITE DRY INK PULVERIZED TONER COMPOSITION AND FORMULATION THEREOF

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...

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Bibliographic Details
Main Authors SAMBHY Varun, STAMP Kirk L, MORALES-TIRADO Juan A
Format Patent
LanguageEnglish
Published 07.12.2017
Subjects
CINEMATOGRAPHY
COLOUR PRINTING
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
LINING MACHINES
MAGNETOGRAPHY
PERFORMING OPERATIONS
PHOTOGRAPHY
PHYSICS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary: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.
Bibliography:Application Number: US201615170929