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AssigneeCanon Kabushiki Kaisha
InventorsMikio Sanada, Yoshihisa Takizawa, Katsuhiko Takahashi, Masashi Ogasawara, Yoichi Takada, Tomonari Watanabe, Yui Tokuda
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The present invention relates to an aqueous ink, particularly an aqueous ink suitable for ink jet recording. The ink is an aqueous ink comprising a modified pigment having organic groups chemically attached to the surface of a particle of the pigment and an aqueous medium which is as a dispersant of the pigment, wherein the above-described organic group includes a reaction product of a functional group chemically attached to the surface of the pigment directly or via another atomic group with a copolymer of an ionic monomer and a hydrophobic monomer.
An aqueous ink comprising a modified pigment having an organic group chemically attached to the surface of the pigment, and an aqueous medium as a dispersant of the pigment, wherein said organic group comprises a reaction product of a functional group chemically attached to the surface of the pigment directly or via another atomic group with a copolymer of an ionic monomer and a hydrophobic monomer.
Dependencies are inferred from the claim text.