Ink, ink set, ink cartridge, printing unit, image printing apparatus, ink-jet printing method, and coloring material
AssigneeCanon Kabushiki Kaisha
InventorsShinya Mishina, Shinichi Sato, Mikio Sanada, Koichi Osumi
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Abstract
An ink is provided which is capable of giving higher density of the printed image and has improved color developability with the light fastness and image stability maintained, and suppressing occurrence of bleeding in color image formation. The ink contains a capsuled coloring material constituted of a water-insoluble coloring material and an organic polymer covering the coloring material, the capsuled coloring material containing the organic polymer at a content ranging from 1% by weight to 20% by weight.
Claims25
An aqueous ink comprising a water insoluble coloring material encapsulated with an organic polymer, wherein the coloring material encapsulated with the organic polymer contains the organic polymer in an amount of from 1 to 20% by weight to the water insoluble coloring material.
An aqueous ink comprising a coloring material encapsulated with an organic polymer, wherein a part of the coloring material's surface is substantially exposed.
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the encapsulated pigment or encapsulated carbon black contains the organic polymer in an amount of from 1 to 20% by weight to the pigment or the carbon black.
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein a part of the self-dispersible pigment's surface or the self-dispersible carbon black's surface is substantially exposed.
An aqueous ink comprising a self-dispersible organic pigment or a self-dispersible carbon black encapsulated with an organic polymer, wherein the pigment or the carbon black encapsulated with an organic polymer has an absorption peak in an infrared absorption spectrum, the peak being assigned to a functional group attached to the surface of the self-dispersible pigment or the self-dispersible carbon black.
An aqueous ink comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the self-dispersible organic pigment or the self-dispersible carbon black encapsulated with an organic polymer has an absorption peak in an infrared absorption spectrum, and no new peaks appear even when the organic polymer encapsulating the self-dispersible polymer or the self-dispersible carbon black is removed.
A capsulated coloring material comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the capsulated coloring material has a peak in an infrared absorption spectrum, the peak being assigned to a functional group attached to the surface of the self-dispersible pigment or the self-dispersible carbon black.
A capsulated coloring material comprising a self-dispersible organic pigment or self-dispersible carbon black encapsulated with an organic polymer, wherein the capsulated coloring material has an absorption peak in an infrared absorption spectrum, and no new absorption peak appears even when the organic polymer encapsulating the self-dispersible organic pigment or the self-dispersible carbon black is removed.
Dependencies are inferred from the claim text.