Recording liquid and ink-jet recording method

Claim 2

A recording liquid containing a solvent and at least one dye represented by formula (I): wherein A represents a substituted or unsubstituted phenyl, or naphthyl group; B represents a substituted or unsubstituted phenylene or naphthylene group; C represents an organic group selected from the group consisting of wherein ℓ is a number of 0 or 1 and m is a number of 1 or 2, provided that ℓ+m=2; M represents an alkali metal, ammonium group, or an organic amine salt; and n is a number of 0 or 1.

Claim 3

A recording liquid as claimed in claim 1, wherein the content of said dye represented by formula (I) is from 0.5 to 8% by weight based on the total amount of the recording liquid.

Claim 4

A recording liquid as claimed in claim 1, wherein said solvent is a mixed solvent composed of water and a water-soluble organic solvent.

Claim 5

A recording liquid as claimed in claim 3, wherein the content of said water-soluble organic solvent is from 10 to 50% by weight based on the total amount of the recording liquid.

Claim 6

An ink-jet recording method which comprises recording an image by use of recording liquid on a recording material comprising a substrate having provided thereon an ink-receiving layer containing a silicon-containing pigment and a binder resin by means of an ink-jet recording technique, said recording liquid containing a solvent and at least one dye represented by formula (I): wherein A represents a substituted or unsubstituted phenyl, or naphthyl group; B represents a substituted or unsubstituted phenylene or naphthylene group; C represents an organic group selected from the group consisting of wherein ℓ is a number of 0 or 1 and m is a number of 1 or 2, provided that ℓ+m=2; M represents an alkali metal, ammonium group, or an organic amine salt; and n is a number of 0 or 1.

Claim 7

An ink-jet recording method which comprises recording an image by use of recording liquid on a recording material comprising a substrate having provided thereon an ink-receiving layer containing a silicon-containing pigment and a binder resin by means of an ink-jet recording technique, said recording liquid containing a solvent and at least one dye represented by formula (I): wherein A represents a substituted or unsubstituted phenyl, or naphthyl group; B represents a substituted or unsubstituted phenylene or naphthylene group; C represents an organic group selected from the group consisting of wherein ℓ is a number of 0 or 1 and m is a number of 1 or 2, provided that ℓ+m=2; M represents an alkali metal, ammonium group, or an organic amine salt; and n is a number of 0 or 1.

Claim 8

An ink-jet recording method as claimed in claim 5, wherein said binder resin in the ink-receiving layer of the recording material comprises a hydrophilic resin.

Claim 9

An ink-jet recording method as claimed in any of claim 5 or 6, wherein said silicon-containing pigment in the ink-receiving layer of the recording material is a pigment selected from the group consisting of silica, calcium silicate, and aluminum silicate.

Claim 10

An ink-jet recording method as claimed in any of claims 5 to 7, wherein said ink-receiving layer has been provided in an amount of from 5 to 50 g/m².