Title:
AQUEOUS DISPERSION BODY, METHOD FOR PRODUCING AQUEOUS DISPERSION BODY, AND INK
Document Type and Number:
Japanese Patent JP2022084348
Kind Code:
A
Abstract:
To provide an aqueous dispersion body containing pigment composite resin particles which enables provision of an image excellent in image density.SOLUTION: An aqueous dispersion body contains emulsion resin particles as a dispersoid, in which the emulsion resin particles contain pigment-including emulsion resin particles including a carbon black as a pigment, the pigment-including emulsion resin particles have 50% cumulative volume particle diameter (D50) obtained by a laser diffraction scattering method of 40 nm or more and 300 nm or less and an average aspect ratio of 1.0 or more and 1.5 or less, and a number average primary particle diameter of the carbon black of 10 nm or more and 50 nm or less.SELECTED DRAWING: None
Inventors:
YAMAZAKI TAKUYA
MIYAKOSHI AKIRA
HATTA SHUKO
MIYAKOSHI AKIRA
HATTA SHUKO
Application Number:
JP2020196166A
Publication Date:
June 07, 2022
Filing Date:
November 26, 2020
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
C09D11/324; B41J2/01
Attorney, Agent or Firm:
Masami Sakai
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