Ink, and ink-jet recording method and instrument using the same
AssigneeCanon Kabushiki Kaisha
InventorsMasahiro Haruta, Shoji Koike, Koromo Shirota, Tomoya Yamamoto, Mariko Suzuki
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Abstract
Disclosed herein is an ink comprising a coloring material and a liquid medium dissolving or dispersing the coloring material therein, wherein the ink comprises a compound represented by the general formula ##STR1## wherein R denotes H or CH.sub.3, n is an integer of 1 to 3, m is an integer of 1 to 3, and n+m is within a range of from 1 to 4, or bis(2-hydroxyethyl)sulfone.
Claims51
An ink comprising a coloring material and a liquid medium dissolving or dispersing the coloring material therein, wherein the ink comprises a compound represented by the general formula ##STR4## wherein R denotes H or CH.sub.3, n is an integer of 1 to 3, m is an integer of 1 to 3, and n+m is within a range of from 2 to 4, in an amount of from 0.1 to 30% by weight based on the total weight of the ink.
An ink comprising a water-insoluble coloring material and a liquid medium dispersing the coloring material therein,
- wherein the ink comprises bis(2-hydroxyethyl)sulfone in an amount of from 0.1 to 30% by weight based on the total weight of the ink.
Dependencies are inferred from the claim text.