Aqueous ink, ink cartridge using the same, inkjet printing method and recorded matter
First Claim
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1. An aqueous ink comprising micromicelles comprised of:
- two or more surfactants forming micelles in an opaque or translucent dispersed state in water when used in conjunction, wherein the two or more surfactants comprise a first surfactant having an HLB equal to or greater than 6 and less than 10 and a second surfactant having an HLB of 10 to 15, wherein the first and second surfactants have the structurally same hydrophobic group unit, and wherein each of the first and second surfactants has an ethylene oxide unit or propylene oxide unit; and
a compound having an alkyl group which is different from the hydrophobic group unit of the first and second surfactants and is less hydrophobic than the hydrophobic group unit of the first and second surfactants,wherein the compound has only a hydroxyl group as a water-soluble group,wherein the first surfactant comprises a compound represented by formula (I) and the second surfactant comprises a compound represented by formula (I), wherein formula (I) is as follows;
A—
C≡
C—
B
(I)wherein A and B are each independently selected from the group consisting of a hydrogen atom, and groups expressed by the following general formulae (IIA) and (IIB)
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Abstract
The invention provides an ink which has a higher fixation of a recorded matter, is more excellent in stability and reliability of the ink, and allows a recorded matter of high image quality to be obtained stably, a recorded image, an inkjet recording method, and devices using such an ink. The invention provides an aqueous ink including micromicelles which are dispersed in a transparent single phase in water, characterized in that the micromicelles are comprised of a combination of two or more surfactants which exhibit an opaque or translucent dispersed state in water and a compound having an alkyl group and having only a hydroxyl group as a water-soluble group, and an inkjet recording method, devices and a recorded image, using the aqueous ink.
42 Citations
15 Claims
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1. An aqueous ink comprising micromicelles comprised of:
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two or more surfactants forming micelles in an opaque or translucent dispersed state in water when used in conjunction, wherein the two or more surfactants comprise a first surfactant having an HLB equal to or greater than 6 and less than 10 and a second surfactant having an HLB of 10 to 15, wherein the first and second surfactants have the structurally same hydrophobic group unit, and wherein each of the first and second surfactants has an ethylene oxide unit or propylene oxide unit; and a compound having an alkyl group which is different from the hydrophobic group unit of the first and second surfactants and is less hydrophobic than the hydrophobic group unit of the first and second surfactants, wherein the compound has only a hydroxyl group as a water-soluble group, wherein the first surfactant comprises a compound represented by formula (I) and the second surfactant comprises a compound represented by formula (I), wherein formula (I) is as follows;
A—
C≡
C—
B
(I)wherein A and B are each independently selected from the group consisting of a hydrogen atom, and groups expressed by the following general formulae (IIA) and (IIB) - View Dependent Claims (2, 8, 9, 12, 13, 14, 15)
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3. An aqueous ink having a coloring material, comprising micromicelles comprised of:
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two or more surfactants forming micelles in an opaque or translucent dispersed state in water when used in conjunction, wherein the two or more surfactants comprise a first surfactant having an HLB equal to or greater than 6 and less than 10 and a second surfactant having an HLB of 10 to 15, wherein the first and second surfactants have the structurally same hydrophobic group unit, and wherein each of the first and second surfactants has an ethylene oxide unit or propylene oxide unit; and a compound having an alkyl group which is different from the hydrophobic group unit of the first and second surfactants and is less hydrophobic than said hydrophobic group unit of the first and second surfactants, wherein the compound has only a hydroxyl group as a water-soluble group, wherein the first surfactant comprises a compound represented by formula (I) and the second surfactant comprises a compound represented by formula (I), wherein formula (I) is as follows;
A—
C≡
C—
B
(I)wherein A and B are each independently selected from the group consisting of a hydrogen atom, and groups expressed by the following general formulae (IIA) and (IIB) - View Dependent Claims (4, 5, 6, 7, 10, 11)
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Specification
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Current AssigneeCanon Kabushiki Kaisha (Canon Inc.)
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Original AssigneeCanon Kabushiki Kaisha (Canon Inc.)
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InventorsNagashima, Akira, Hakamada, Shinichi
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Primary Examiner(s)Lorengo; Jerry
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Assistant Examiner(s)FAISON, VERONICA F
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Application NumberUS11/141,239Publication NumberTime in Patent Office1,847 DaysField of Search106/31.59, 106/31.89, 106/31.58, 106/31.86US Class Current106/31.59CPC Class CodesC09D 11/38 characterised by non-macrom...
