Ink compositions for inkjet recording
First Claim
Patent Images
1. An ink composition for inkjet recording comprising:
- an azo dye having an aromatic nitrogen-containing 6-membered heterocycle as a coupling component;
an aqueous medium; and
a surfactant, wherein the azo dye is dissolved or dispersed in the aqueous medium, herein the azo dye is represented by the following formula (A-1);
wherein A represents a 5-membered heterocyclic group;
B1 and B2 represent ═
CR1— and
—
CR2═
, respectively, or either one represents a nitrogen atom and the other one represents —
CR1═
or —
CR2═
;
R5 and R6 each independently represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkyl- or aryl-sulfonyl group or a sulfamoyl group, which may each have a further substituent;
G, R1, and R2 each independently represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a carboxyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a heterocyclic oxycarbonyl group, an acyl group, a hydroxyl group, an alkoxy group, an aryloxy group, a silyloxy group, an acyloxy group, a carbamoyloxy group, a heterocyclic oxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an amino group, an acylamino group, an ureido group, a sulfamoylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, an alkyl- or aryl-sulfonylamino group, a heterocyclic sulfonylamino group, a nitro group, an alkyl- or aryl-thio group, an alkyl- or aryl-sulfonyl group, a heterocyclic sulfonyl group, an alkyl- or aryl-sulfinyl group, a heterocyclic sulfinyl group, a sulfamoyl group, a sulfo group, or a heterocyclic thio group, which may each have a further substituent; and
a pair R1 and R5 or a pair R5 and R6 may be coupled to form a 5- or 6-membered ring.
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Abstract
An ink composition for inkjet recording comprising: an azo dye having an aromatic nitrogen-containing 6-membered heterocycle as a coupling component; an aqueous medium; and a surfactant, wherein the azo dye is dissolved or dispersed in the aqueous medium.
37 Citations
8 Claims
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1. An ink composition for inkjet recording comprising:
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an azo dye having an aromatic nitrogen-containing 6-membered heterocycle as a coupling component;
an aqueous medium; and
a surfactant, wherein the azo dye is dissolved or dispersed in the aqueous medium, herein the azo dye is represented by the following formula (A-1);
whereinA represents a 5-membered heterocyclic group;
B1 and B2 represent ═
CR1— and
—
CR2═
, respectively, or either one represents a nitrogen atom and the other one represents —
CR1═
or —
CR2═
;
R5 and R6 each independently represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkyl- or aryl-sulfonyl group or a sulfamoyl group, which may each have a further substituent;
G, R1, and R2 each independently represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a carboxyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a heterocyclic oxycarbonyl group, an acyl group, a hydroxyl group, an alkoxy group, an aryloxy group, a silyloxy group, an acyloxy group, a carbamoyloxy group, a heterocyclic oxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an amino group, an acylamino group, an ureido group, a sulfamoylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, an alkyl- or aryl-sulfonylamino group, a heterocyclic sulfonylamino group, a nitro group, an alkyl- or aryl-thio group, an alkyl- or aryl-sulfonyl group, a heterocyclic sulfonyl group, an alkyl- or aryl-sulfinyl group, a heterocyclic sulfinyl group, a sulfamoyl group, a sulfo group, or a heterocyclic thio group, which may each have a further substituent; and
a pair R1 and R5 or a pair R5 and R6 may be coupled to form a 5- or 6-membered ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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4. The ink composition according to claim 1, wherein A in the formula (A-1) represents one of the following formulae (a) to (f):
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wherein each of R7 to R20 independently represents a hydrogen atom a halogen atom, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a carboxyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a heterocyclic oxycarbonyl group, an acyl group, a hydroxyl group, an alkoxy group, an aryloxy group, a silyloxy group, an acyloxy group, a carbamoyloxy group, a heterocyclic oxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an amino group, an acylamino group, an ureido group, a sulfamoylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, an alkyl- or aryl-sulfonylamino group, a heterocyclic sulfonylamino group, a nitro group, an alkyl- or aryl-thio group, an alkyl- or aryl-sulfonyl group, a heterocyclic sulfonyl group, an alkyl- or aryl-sulfinyl group, a heterocyclic sulfinyl group, a sulfamoyl group, a sulfo group, or a heterocyclic thio group, which may each have a further substituent.
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5. The ink composition according to claim 1, wherein the dye represented by the formula (A-1) is a water soluble dye, and the ink composition is produced by a process comprising at least one of the steps of:
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dissolving the dye and the surfactant in the aqueous medium; and
dispersing the dye and the surfactant in the aqueous medium.
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6. The ink composition according to claim 1, wherein the dye represented by the formula (A-1) is an oil soluble dye, and the ink composition is produced by a process comprising the steps of:
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dissolving the dye in a high-boiling-point organic solvent; and
dispersing the organic solvent in the aqueous medium after the dissolving.
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7. An inkjet recording method, which comprises ejecting the ink composition according to claim 1.
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8. An inkjet recording method comprising:
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preparing an image receiving material which comprises a support and an image receiving layer comprising white inorganic pigment particles; and
ejecting the ink composition according to claim 1 to the image receiving material according to a recording signal.
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Specification
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Current AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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Original AssigneeFuji Photo Film Co Limited (Fujifilm Holdings Corporation)
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InventorsNishita, Nobuhiro, Yabuki, Yoshiharu, Yamanouchi, Junichi
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Primary Examiner(s)KLEMANSKI, HELENE G
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Application NumberUS10/187,604Publication NumberTime in Patent Office909 DaysField of Search106/31.48, 106/31.5, 106/31.58, 106/31.59, 347/100, 534/766, 534/767, 534/769US Class Current106/31.48CPC Class CodesC09D 11/328 characterised by dyesC09D 11/40 Ink-sets specially adapted ...
