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Dry toner comprising wax

A toner, drying technology, applied in the direction of developer, instrument, electrography, etc., can solve the problem of non-reusable and so on

Inactive Publication Date: 2006-05-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This electrostatic receptor is not photosensitive and generally cannot be reused

Method used

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  • Dry toner comprising wax

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0159] A 190-L reactor equipped with a condenser, a thermocouple connected to a digital temperature controller, a nitrogen feed line connected to a dry nitrogen source, and a mixer was thoroughly cleaned with heptane reflux, then at 100 °C under vacuum Dry thoroughly. A nitrogen blanket was applied and the reactor was allowed to cool to ambient temperature. 88.45kg Norpar TM 12 Fluid was put into the reactor under vacuum, then the vacuum was released and a nitrogen flow of 28.32 liters / hour was applied, and agitation was started at 70 RPM. Then add 30.12kg TCHMA, the container with 1.23kg Norpar TM 12 fluid flushing, add 0.95kg 98% (w / w) HEMA, the container with 0.62kg Norpar TM 12 fluid flush. Finally add 0.39kg V-601 and fill the container with 0.09kg Norpar TM 12 fluid flush. Apply full vacuum for 10 minutes, then remove the nitrogen blanket. Apply a second vacuum for 10 minutes, then stop stirring to confirm that no bubbles are escaping from the solution. The vacuu...

Embodiment 2

[0163] A 190-L reactor equipped with a condenser, a thermocouple connected to a digital temperature controller, a nitrogen feed line connected to a dry nitrogen source, and a mixer was thoroughly cleaned with heptane reflux, then at 100 °C under vacuum Dry thoroughly. A nitrogen blanket was applied and the reactor was allowed to cool to ambient temperature. 88.45kg Norpar TM 12 Fluid was put into the reactor under vacuum, then the vacuum was released and a nitrogen flow of 28.32 liters / hour was applied, and agitation was started at 70 RPM. Then add 30.12kg TCHMA, the container with 1.23kg Norpar TM 12 fluid flushing, add 0.95kg 98% (w / w) HEMA, the container with 0.62kg Norpar TM 12 fluid flush. Finally add 0.39kg V-601 and fill the container with 0.09kg Norpar TM 12 fluid flush. Apply full vacuum for 10 minutes, then remove the nitrogen blanket. Apply a second vacuum for 10 minutes, then stop stirring to confirm that no bubbles are escaping from the solution. The vacuu...

Embodiment 3

[0167] A 190-L reactor equipped with a condenser, a thermocouple connected to a digital temperature controller, a nitrogen feed line connected to a dry nitrogen source, and a mixer was thoroughly cleaned with heptane reflux, then at 100 °C under vacuum Dry thoroughly. A nitrogen blanket was applied and the reactor was allowed to cool to ambient temperature. 91.6kg Norpar TM 12 Fluid was put into the reactor under vacuum, then the vacuum was released and a nitrogen flow of 28.32 liters / hour was applied, and agitation was started at 70 RPM. Then add 30.12kg TCHMA, the container with 1.23kg Norpar TM 12 fluid flushing, add 0.95kg 98% (w / w) HEMA, the container with 0.62kg Norpar TM 12 fluid flush. Finally add 0.39kg V-601 and fill the container with 0.09kg Norpar TM 12 fluid flush. Apply full vacuum for 10 minutes, then remove the nitrogen blanket. Apply a second vacuum for 10 minutes, then stop stirring to confirm that no bubbles are escaping from the solution. The vacuum...

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Abstract

A dry electrophotographic toner composition is provided comprising a plurality of dry toner particles comprising a polymeric binder comprising at least one amphiphilic copolymer comprising one or more S A material part and one or more D material parts. Dry electrophotographic toner compositions include wax associated with dry toner particles, wherein a majority of the wax is entrapped within the toner particle and a majority of the wax is associated with the toner particle on its surface. A method of preparing an electrophotographic toner composition comprising preparing polymeric binder particles comprising at least one amphiphilic copolymer comprising one or more S material fractions and one or more D materials part, and the particles are ground with wax in a liquid carrier before or after formulation into toner particles, and then dried to form a dry toner composition. The toner composition provides an image having excellent durability and erasure resistance at a low melting temperature and having low undesired offset.

Description

technical field [0001] This invention relates to dry toner compositions having utility in electrophotography. The present invention more particularly relates to dry toner compositions comprising an amphiphilic copolymer binder and additionally comprising a wax. Background technique [0002] In electrophotographic and xerographic processes (collectively referred to as electrographic processes), an electrostatic image is formed on the surface of a photoreceptive element or a dielectric element, respectively. The photoreceptive or dielectric element may be an intermediate transfer drum or belt, or the substrate for the final toned image itself, as described by Schmidt, S.P. and Larson, J.R. in Handbook of Imaging Materials Diamond, A, S., Ed: Marcel Dekker: New York; Chapter 6, pp. 227-252 and as described in US Patent Nos. 4,728,983, 4,321,404, and 4,268,598. [0003] Electrophotography forms the technical basis for various well-known methods of imagi...

Claims

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Application Information

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IPC IPC(8): G03G9/087G03G9/08
CPCG03G9/0804G03G9/08711G03G9/08782G03G9/08786G03G9/08795G03G9/08797G03G9/08
Inventor 查尔斯·W·辛普森罗纳德·J·莫德赖伦纳德·斯塔尔克詹姆斯·A·贝克兹比格纽·托卡斯基A·克里斯汀·福达尔盖伊·L·赫曼
Owner SAMSUNG ELECTRONICS CO LTD