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US 2010/0143835 A1Published application
Electrophotographic toner and method of preparing the same
AssigneeSamsung Electronics Co., Ltd.
InventorsYo-Da Shin, Jun-Young Lee, Jae-Hwan Kim, Tae-Hoe Koo
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Abstract
Provided are an electrophotographic toner and a method of preparing the same. The toner includes a latex, a coloring agent, and a release agent, and has a selected amount of wax exposed on the surface of the toner.
Claims17
An electrophotographic toner comprising a latex, a coloring agent and a release agent,
- wherein the area of a region protruding by a distance of about 100 nm or more in height from the surface of the toner (R) is in the range of about 5 to about 15% of the total surface area of the toner when an image projection plane of the electrophotographic toner is analyzed using a scanning electron microscope (SEM).
A method of preparing an electrophotographic toner, the method comprising:
- preparing a mixture by mixing first latex particles comprising a wax with a pigment dispersion;
- preparing a first agglomerated toner by adding an agglomerating agent to the mixture;
- and
- preparing a second agglomerated toner by coating a second latex on the first agglomerated toner,
- wherein the area of a region protruding by a distance of about 100 nm or more in height from the surface of the toner (R) is in the range of about 5 to about 15% of the total surface area of the toner when an image projection plane of the electrophotographic toner is analyzed using a scanning electron microscope (SEM).
2 more elements
Dependencies are inferred from the claim text.