Title:
LIQUID COMPOSITION, IMAGE FORMING METHOD AND IMAGE FORMING DEVICE
Document Type and Number:
Japanese Patent JP2006342307
Kind Code:
A
Abstract:
To provide an ink composition with slight color blurs and density unevenness to paper and excellent in printing density.
The invention relates to the ink composition comprising a colorant, a solvent and a polymer compound, wherein the average density N of a dissociating groups in a surface charge layer of the colorant is ≥0.005 M and the parameter 1/λ indicating mobility of the surface charge layer is 0.5 to 5.00 nm in a solution dispersing the ink composition in an aqueous solution of an electrolyte in a pH range of 5-8, and the content of the polymer compound not including the colorant to the colorant and the polymer compound including the colorant, is ≤0.1% by mass.
Inventors:
NAKAHAMA KAZUMICHI
SATO KOICHI
AZUMA TAKASHI
TSUBAKI KEIICHIRO
SUDA SAKAE
IKEGAMI MASAYUKI
SATO KOICHI
AZUMA TAKASHI
TSUBAKI KEIICHIRO
SUDA SAKAE
IKEGAMI MASAYUKI
Application Number:
JP2005171428A
Publication Date:
December 21, 2006
Filing Date:
June 10, 2005
Export Citation:
Assignee:
CANON KK
International Classes:
C09D17/00; B41J2/01; B41M5/00; C09D11/00; C09D11/322; C09D11/328
Attorney, Agent or Firm:
Tokuhiro Watanabe
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