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US 12,110,405 B2Granted
Aqueous dispersion, method of manufacturing aqueous dispersion, and ink
AssigneeRicoh Company, Ltd.
InventorsRyo Miyakoshi, Takuya Yamazaki, Chikako Hatta
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Abstract
An aqueous dispersion contains emulsion resin particles that contains pigment enclosing emulsion resin particles enclosing an inorganic pigment, wherein the pigment enclosing emulsion resin particles have a 50 percent cumulative volume particle diameter (D50) of from 40 to 300 nm as measured by laser diffraction scattering method, wherein the pigment enclosing emulsion resin particles have an average aspect ratio of from 1.0 to 1.5.
Claims9
An aqueous dispersion comprising:
- emulsion resin particles comprising:
- pigment enclosing emulsion resin particles each comprising:
- a resin;
- and
- an inorganic pigment enclosed in the resin,
- wherein the pigment enclosing emulsion resin particles have a 50 percent cumulative volume particle diameter (D50) of from 40 to 300 nm as measured by a laser diffraction scattering method,
- wherein the pigment enclosing emulsion resin particles have an average aspect ratio of from 1.0 to 1.5.
4 more elements
Dependencies are inferred from the claim text.