METHOD FOR PRODUCING SELF-DISPERSING PIGMENT, SELF-DISPERSING PIGMENT, INK, INK CARTRIDGE AND INKJET RECORDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a self-dispersing pigment useful as a color material such as ink with a high reaction efficiency.SOLUTION: There is provided a method for producing a self-dispersing pigment, which comprises a step of bonding a functional group containing a hydrophilic group to the particle surface of a pigment by reacting a compound represented by the following general formula (1) (Rrepresents a halogen atom, Rrepresents an alkali metal, Rrepresents a single bond, -CO-, -CONH- or -SO-, Rrepresents a group in which a hydrophilic group such as a carboxylic acid group is substituted with a group having at least one of an aliphatic group and an aromatic group) with the particle surface of the pigment.SELECTED DRAWING: None