Back to results
US 8,282,725 B2Granted
Self-dispersion pigment, production process of self-dispersion pigment, ink set and ink jet recording method
AssigneeCanon Kabushiki Kaisha
InventorsNaofumi Shimomura, Ai Shinohara, Eri Watanabe, Yutaka Kurabayashi
Life of this patent
Estimating the term…
Abstract
The invention provides a self-dispersion pigment including a pigment, an ionic group directly bonded to the pigment and a nonionic molecular chain bonded to the pigment through an amide bond.
Claims14
A self-dispersion pigment comprising:
- a pigment;
- an ionic group directly bonded to the pigment;
- and
- a nonionic molecular chain bonded to the pigment through an amide bond,
- wherein a molecular chain of the nonionic molecular chain is an alkyl ether.
2 more elements
A process for producing a self-dispersion pigment, comprising causing a pigment to which a carboxyl group or sulfonic group is directly bonded, a condensing agent, and an amine compound to react with one another,
- wherein the self-dispersion pigment includes a nonionic molecular chain bonded to the pigment through an amide bond, and
- wherein a molecular chain of the nonionic molecular chain is an alkyl ether.
Dependencies are inferred from the claim text.