Ink-jet recording ink, ink-jet recording process, and ink-jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorsShoji Koike, Ryota Kato
Life of this patent
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Abstract
An ink-jet recording ink which contains water, a coloring material and a surfactant, wherein the surfactant is in a content of from 0.6 to 5% by mass in the ink, and the ink further contains a block compound represented by the following formula (I): HO—(EO)a—(PO)b—(EO)c—H (I) wherein EOs each represent an ethylene oxide moiety; PO represents a propylene oxide moiety; a, b and c satisfy a≧0, 2≦b≦12, c≧0 and 1≦a+c≦60; and the ethylene oxide moiety/-ies in one molecule is/are in a proportion of from 20 to 80% on the basis of mass. Also disclosed are an ink-jet recording process and an ink-jet recording apparatus which make use of this ink.
Claims9
An ink-jet recording ink comprising water, a coloring material and a surfactant, wherein;
- said surfactant is in a content of from 0.6 to 5% by mass in the ink, and said ink further comprises a block compound represented by the following formula (I):
- HO—(EO)a—(PO)b—(EO)c—H (I)
- wherein EOs each represent an ethylene oxide moiety;
- PO represents a propylene oxide moiety;
- a, b and c satisfy a≧0, 2≦b≧12, c≧0 and 1≦a+c≦60;
- and the ethylene oxide moiety/-ies in one molecule is/are in a proportion of from 20 to 80% on the basis of mass.
An ink-jet recording process comprising the step of applying an ink to a cellulose-containing recording medium to perform recording by using an ink-jet recording head, wherein;
- the recording area of said recording medium is 15 cm2 or more, and said ink is in an ink application amount of from 0.03 to 30 mg/cm2;
- and
- said ink comprises water, a coloring material and a surfactant, said surfactant is in a content of from 0.6 to 5% by mass in the ink, and said ink further comprises a block compound represented by the following formula (I):
- HO—(EO)a—(PO)b—(EO)c—H (I)
- wherein EOs each represent an ethylene oxide moiety;
- PO represents a propylene oxide moiety;
- a, b and c satisfy a≧0, 2≦b≦12, c≧0 and 1≦a+c≦60;
- and the ethylene oxide moiety/-ies in one molecule is/are in a proportion of from 20 to 80% on the basis of mass.
Dependencies are inferred from the claim text.