| CPC C09D 11/328 (2013.01) [B41J 2/1433 (2013.01); C08L 71/02 (2013.01); C09B 47/063 (2013.01); C09D 11/322 (2013.01)] | 5 Claims |
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1. An ink jet ink set comprising:
an aqueous dye ink; and
an aqueous pigment ink,
wherein the ink jet ink set is an ink set to be used for an ink jet recording apparatus which includes a first ejection port to eject the aqueous dye ink, a second ejection port to eject the aqueous pigment ink, and a cap to collectively cap the first ejection port and the second ejection port, the cap being composed of the same member as that forming the first ejection port and the second ejection port,
the aqueous dye ink contains a dye and a poly(oxyalkylene) alkyl ether,
the poly(oxyalkylene) alkyl ether is either polyethylene glycol 2-ethylhexyl ether or polyethylene glycol oleyl ether,
the dye includes a copper phthalocyanine compound having two or less benzene ring structures other than a phthalocyanine skeleton,
the aqueous pigment ink contains a self-dispersible pigment,
the aqueous dye ink contains monovalent cations at an amount of 1400 ppm or less,
wherein the copper phthalocyanine compound is a compound represented by the following formula (C-1):
 where in the formula (C-1), each q independently represents an integer of one to three: each Z independently represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted monoalkylamino group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and at least one Z has an ionic hydrophilic group as a substituent: each R independently represents a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxyl group, a nitro group, an amino group, an alkylamino ureido group, a sulfamoylamino group, an amide group, an arylamino group, an alkoxycarbonylamino group, a sulfonamino group, a carboxyl group, a sulfamoyl group, an alkoxycarbonyl group, a heterocyclic oxy group, an azo group, an acyloxy group, a carbamoloxy group, a siloxy group, an aryloxycarbonyl group, an aryloxycarbonylamino group, an imide group, a heterocyclic thio group, a phosphoryl group, an acyl group, or an ionic hydrophilic group, and those groups each further have no substituents or at least one substituent: n represents an Integer of one to four; m represents an integer of zero to four; p represents an integer of zero to eight; and n+m+p represents an integer of 1 to 12, and
wherein S(O)qZ in the formula (C-1) represents at least one group represented by the following formula (C1-3):
 in the formula (C1-3), RM31 represents a divalent hydrocarbon group having one to six carbon atoms, XM31 represents a chlorine atom, a hydroxyl group, an alkoxygroup, an amino group, or a dialkylamino group, r represents an integer of one to three, * represents a bonding site, and the alkyl group of the alkoxygroup or the dialkylamino has no substituents or at least one substituent.
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