Ink jet recording device and cartridge therefore

Claim 2

An ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR9## wherein Q1 is a phenyl group substituted with a lower alkycarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 3

An ink jet device according to claim 1, wherein said ink storing member is an ink absorber or an ink bag.

Claim 4

An ink jet device according to claim 1, wherein said head has a heating head to provide heat energy to said ink for discharging ink droplets.

Claim 5

An ink jet device according to claim 1, wherein said compound represented by the general formulas (I) has the following formula: ##STR10##

Claim 6

An ink jet device according to claim 1, wherein said compound represented by the general formula (II) has the following formula: ##STR11## wherein M is an alkaline metal or an ammonium cation.

Claim 7

An ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, a urea compound selected from the group consisting of urea or thiourea, said urea compound being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of said recording liquid, an aliphatic monohyric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR12## wherein Q1 is a phenyl group substituted with a lower alkycarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 8

An ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, a urea compound selected from the group consisting of urea or thiourea, said urea compound being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of said recording liquid, an aliphatic monohyric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR12## wherein Q1 is a phenyl group substituted with a lower alkycarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 9

An ink jet device according to claim 6, wherein said ink storing member is an ink absorber or an ink bag.

Claim 10

An ink jet device according to claim 6, wherein said head has a heating head to provide to said ink a heat energy for discharging ink droplets.

Claim 11

An ink jet device according to claim 6, wherein said compound represented by the general formula (I) has the following formula: ##STR13## wherein M is an alkaline metal or an ammonium cation.

Claim 12

An ink jet device according to claim 6, wherein said compound represented by the general formula (II) has the following formula: ##STR14## wherein M is an alkaline metal or an ammonium cation.

Claim 13

An ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, thiodiglycol, said thiodiglycol being present in said recording liquid in an amount between 1 wt. % and 30 wt. % based on the total weight of the recording liquid, urea, said urea being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of the recording liquid, isopropyl alcohol, said isopropyl alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of the recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR15## wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 14

An ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, thiodiglycol, said thiodiglycol being present in said recording liquid in an amount between 1 wt. % and 30 wt. % based on the total weight of the recording liquid, urea, said urea being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of the recording liquid, isopropyl alcohol, said isopropyl alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of the recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR15## wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 15

An ink jet device according to claim 11, wherein said ink storing member is an ink absorber or an ink bag.

Claim 16

An ink jet device according to claim 11, wherein said head has a heating head to provide to said ink a heat energy for discharging ink droplets.

Claim 17

An ink jet device according to claim 11, wherein said compound represented by the general formula (I) has the following formula: ##STR16## wherein M is an alkaline metal or an ammonium cation.

Claim 18

An ink jet device according to claim 11, wherein said compound represented by the general formula (II) has the following formula: ##STR17## wherein M is an alkaline metal or an ammonium cation.

Claim 19

An ink jet recording apparatus comprising an ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR18## wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 20

An ink jet recording apparatus comprising an ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR18## wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 21

An ink jet recording apparatus according to claim 16, wherein said ink storing member is an ink absorber or an ink bag.

Claim 22

An ink jet recording apparatus according to claim 16, wherein said head was a heating head to provide to said ink a heat energy for discharging ink droplets.

Claim 23

An ink jet recording apparatus according to claim 16, wherein said compound represented by the general formula (I) has the following formula: ##STR19## wherein M is an alkaline metal or an ammonium cation.

Claim 24

An ink jet recording apparatus according to claim 16, wherein said compound represented by the general formula (II) has the following formula: ##STR20## wherein M is an alkaline metal or an ammonium cation.

Claim 25

An ink jet recording apparatus comprising an ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, a urea compound selected from the group consisting of urea or thiourea, said urea compound being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR21## wherein Q1 is a phenyl group substituted with a lower alkycarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 26

An ink jet recording apparatus comprising an ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, a urea compound selected from the group consisting of urea or thiourea, said urea compound being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR21## wherein Q1 is a phenyl group substituted with a lower alkycarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 27

An ink jet recording apparatus according to claim 21, wherein said ink storing member is an ink absorber or an ink bag.

Claim 28

An ink jet recording apparatus according to claim 21, wherein said head was a heating head to provide to said ink a heat energy for discharging ink droplets.

Claim 29

An ink jet recording apparatus according to claim 21, wherein said compound represented by the general formula (I) has the following formula: ##STR22## wherein M is an alkaline metal or an ammonium cation.

Claim 30

An ink jet recording apparatus according to claim 21, wherein said compound represented by the general formula (II) has the following formula: ##STR23## wherein M is an alkaline metal or an ammonium cation.

Claim 31

An ink jet recording apparatus comprising an ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, thiodiglycol, said thiodiglycol being present in said recording liquid in an amount between 1 wt. % and 30 wt. % based on the total weight of the recording liquid, urea, said urea being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of the recording liquid, isopropyl alcohol, said isopropyl alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR24## wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 32

An ink jet recording apparatus comprising an ink jet device comprising an ink storing member impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, thiodiglycol, said thiodiglycol being present in said recording liquid in an amount between 1 wt. % and 30 wt. % based on the total weight of the recording liquid, urea, said urea being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of the recording liquid, isopropyl alcohol, said isopropyl alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR24## wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation; wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8; and a head having a plurality of orifices for discharging said ink as ink droplets.

Claim 33

An ink jet recording apparatus according to claim 26 wherein said ink storing member is an ink absorber or an ink bag.

Claim 34

An ink jet recording apparatus according to claim 26, wherein said head was a heating head to provide to said ink a heat energy for discharging ink droplets.

Claim 35

An ink jet recording apparatus according to claim 26, wherein said compound represented by the general formula (I) has the following formula: ##STR25## wherein M is an alkaline metal or an ammonium cation.

Claim 36

An ink jet recording apparatus according to claim 26, wherein said compound represented by the general formula (II) has the following formula: ##STR26## wherein M is an alkaline metal or an ammonium cation.

Claim 37

An ink cartridge comprising an ink bag impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR27## wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation, wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8.

Claim 38

An ink cartridge comprising an ink bag impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR27## wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation, wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8.

Claim 39

An ink cartridge according to claim 31, wherein said compound represented by the general formula (I) has the following formula: ##STR28## wherein M is an alkaline metal or an ammonium cation.

Claim 40

An ink cartridge according to claim 31, wherein said compound represented by the general formula (II) has the following formula: ##STR29## wherein M is an alkaline metal or an ammonium cation.

Claim 41

An ink cartridge comprising an ink bag impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, a urea compound selected from the group consisting of urea or thiourea, said urea compound being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR30## wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation, wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8.

Claim 42

An ink cartridge comprising an ink bag impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, a urea compound selected from the group consisting of urea or thiourea, said urea compound being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of said recording liquid, an aliphatic monohydric alcohol, said aliphatic monohydric alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR30## wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation, wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8.

Claim 43

An ink cartridge according to claim 34, wherein said compound represented by the general formula (I) has the following formula: ##STR31## wherein M is an alkaline metal or an ammonium cation.

Claim 44

An ink cartridge according to claim 34, wherein said compound represented by the general formula (II) has the following formula: ##STR32## wherein M is an alkaline metal or an ammonium cation.

Claim 45

An ink cartridge comprising an ink bag impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, thiodiglycol, said thiodiglycol being present in said recording liquid in an amount between 1 wt. % and 30 wt. % based on the total weight of the recording liquid, urea, said urea being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of the recording liquid, isopropyl alcohol, said isopropyl alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR33## wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation, wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8.

Claim 46

An ink cartridge comprising an ink bag impregnated with a recording liquid comprising: a dye, glycerine, said glycerine being present in said recording liquid in an amount between about 1 wt. % and 30 wt. % based on the total weight of said recording liquid, thiodiglycol, said thiodiglycol being present in said recording liquid in an amount between 1 wt. % and 30 wt. % based on the total weight of the recording liquid, urea, said urea being present in said recording liquid in an amount between 0.5 wt. % and 20 wt. % based on the total weight of the recording liquid, isopropyl alcohol, said isopropyl alcohol being present in said recording liquid in an amount between 0.1 wt. % and 10 wt. % based on the total weight of said recording liquid and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas (I) and (II): ##STR33## wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO 3 M group, Q2 is a naphthyl group substituted with a SO 3 M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO 3 M group or a naphthyl group substituted with a SO 3 M group, R 1 and R 2 are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R 3 is a hydrogen or a phenyl group substituted with a SO 3 M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation, wherein said Food Black 2 and said at least one compound represented by said general formula [I] and [II] are mixed in a weight ratio from 8:2 to 2:8.

Claim 47

An ink cartridge according to claim 37, wherein said compound represented by the general formula (I) has the following formula: ##STR34## wherein M is an alkaline metal or an ammonium cation.

Claim 48

An ink cartridge according to claim 37, wherein said compound represented by the general formula (II) has the following formula: ##STR35## wherein M is an alkaline metal or an ammonium cation.