Recording ink, method for ink jet recording, method for producing color filter, color filter, method for producing liquid crystal display panel, liquid crystal display panel, and yellow ink

Claim 2

A recording ink comprising: a water-soluble azopyridone dye represented by the following formula (1); wherein each of A and B is independently a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, a phosphono group, a sulfonic acid group, a sulfamide group, a carboxyl group, a trifluoromethyl group, a straight-chain or branched alkyl group, a straight-chain or branched alkoxy group, an aryl group which may have at least one substituent, or a salt of these substances; X is a straight-chain or branched alkyl group, a hydrogen atom, a carboxyl group, or a trifluoromethyl group; Y is a hydrogen atom, a cyano group, a carbamoyl group, a sulfonic acid group, a methylsulfonyl group, or a salt of these substances; and Z is a straight-chain or branched alkyl group, and wherein said water-soluble azopyridone dye has at least one sulfonic acid group or a salt thereof in its structure; a phthalocyanine dye represented by the following formula (2): wherein each of R 1 , R 2 , R 3 , and R 4 is independently a hydrogen atom, a sulfonic acid group, a sulfamide group, a carboxyl group, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, a phosphono group, a trifluoromethyl group, a straight-chain or branched alkyl group, a straight-chain or branched alkoxy group, an aryl group which may have a substituent, a phenoxy group which may have a substituent, a thiophenoxy group which may have a substituent, a phenyl group which may have a substituent, or a salt of these substances; M represents two hydrogen atoms, two Na atoms, two Li atoms, two metals, or a trivalent or tetravalent metal derivative; and wherein said phthalocyanine dye has at least two sulfonic acid groups or salts thereof in its structure; and a water-soluble organic solvent.

Claim 3

A recording ink according to claim 1 , wherein said water-soluble azopyridone dye and said phthalocyanine dye are contained in a weight ratio of 3:1 to 1:3 and said ink produces a green color.

Claim 4

A recording ink according to claim 1 , wherein said water-soluble organic solvent comprises a water-soluble organic solvent having a boiling point of 120° C. or more, which is present at 10% by weight or more of the ink.

Claim 5

A recording ink according to claim 1 , wherein X in formula (1) is a trifluoromethyl group.

Claim 6

A recording ink according to claim 4 , wherein Y in formula (1) is a sulfonic acid group or a methylsulfonyl group.

Claim 7

A recording ink according to claim 1 , further comprising a film-forming component and wherein said ink is convertible into a film by application of at least one of heat and light.

Claim 8

A recording ink according to claim 6 , wherein said film-forming component is at least one component selected from the group consisting of acrylic monomers, polymers having an acrylic monomeric unit, vinyl monomers, and polymers having a vinyl monomeric unit.

Claim 9

A recording ink according to claim 7 , wherein the acrylic monomeric unit is represented by the following formula (5): wherein R 1 is a hydrogen atom or a methyl group; and R 2 is a hydrogen atom or an alkyl group.

Claim 10

A recording ink according to claim 1 , wherein the ink is an ink for ink jet recording.

Claim 11

A method for ink jet recording, comprising the step of performing ink jet recording by using the recording ink according to claim 9 .

Claim 14

A method according to claim 11 , wherein said step of forming colored pixels comprises a step of applying the ink to a substrate with an ink jet recording system.

Claim 17

A method according to claim 13 , wherein said acrylic monomeric unit is represented by the following formula (5): wherein R 1 is a hydrogen atom or a methyl group; and R 2 is a hydrogen atom or an alkyl group.

Claim 18

A method according to claim 13 , wherein said ink receiving layer comprises a photopolymerization initiator.

Claim 19

A method according to claim 13 , wherein said ink receiving layer comprises non-colored portions, said method further comprising a step of partially curing the non-colored portions of the ink receiving layer by light irradiation or by light irradiation and heat treatment in combination prior to application of the ink to thereby reduce ink absorbency of the non-colored portions of the ink receiving layer.

Claim 22

A method according to claim 17 , wherein said recording ink is applied with an ink jet system in said step of applying the recording ink.

Claim 23

A method according to claim 17 , wherein said substrate has a wall for preventing ink color-mixing.

Claim 24

A method according to claim 18 , wherein said substrate has a wall for preventing ink color-mixing.

Claim 25

A color filter produced by the method of claim 11 .

Claim 26

A color filter produced by the method of claim 13 .

Claim 27

A color filter produced by the method of claim 17 .

Claim 28

A color filter containing a green pixel, said green pixel comprising a water-soluble azopyridone dye represented by the following formula (1) and a phthalocyanine dye represented by the following formula (2): wherein each of A and B is independently a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, a phosphono group, a sulfonic acid group, a sulfamide group, a carboxyl group, a trifluoromethyl group, a straight-chain or branched alkyl group, a straight-chain or branched alkoxy group, an aryl group which may have at least one substituent, or a salt of these substances; X is a straight-chain or branched alkyl group, a hydrogen atom, a carboxyl group, or a trifluoromethyl group; Y is a hydrogen atom, a cyano group, a carbamoyl group, a sulfonic acid group, a methylsulfonyl group, or a salt of these substances; and Z is a straight-chain or branched alkyl group, and wherein said water-soluble azopyridone dye has at least one sulfonic acid group or a salt thereof in its structure; wherein each of R 1 , R 2 , R 3 , and R 4 is independently a hydrogen atom, a sulfonic acid group, a sulfamide group, a carboxyl group, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, a phosphono group, a trifluoromethyl group, a straight-chain or branched alkyl group, a straight-chain or branched alkoxy group, an aryl group which may have a substituent, a phenoxy group which may have a substituent, a thiophenoxy group which may have a substituent, a phenyl group which may have a substituent, or a salt of these substances; M represents two hydrogen atoms, two Na atoms, two Li atoms, two metals, or a trivalent or tetravalent metal derivative, and wherein said phthalocyanine dye has at least two sulfonic acid groups or salts thereof in its structure.

Claim 29

A color filter containing a green pixel, said green pixel comprising a water-soluble azopyridone dye represented by the following formula (1) and a phthalocyanine dye represented by the following formula (2): wherein each of A and B is independently a hydrogen atom, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, a phosphono group, a sulfonic acid group, a sulfamide group, a carboxyl group, a trifluoromethyl group, a straight-chain or branched alkyl group, a straight-chain or branched alkoxy group, an aryl group which may have at least one substituent, or a salt of these substances; X is a straight-chain or branched alkyl group, a hydrogen atom, a carboxyl group, or a trifluoromethyl group; Y is a hydrogen atom, a cyano group, a carbamoyl group, a sulfonic acid group, a methylsulfonyl group, or a salt of these substances; and Z is a straight-chain or branched alkyl group, and wherein said water-soluble azopyridone dye has at least one sulfonic acid group or a salt thereof in its structure; wherein each of R 1 , R 2 , R 3 , and R 4 is independently a hydrogen atom, a sulfonic acid group, a sulfamide group, a carboxyl group, a halogen atom, a hydroxyl group, a cyano group, a nitro group, an amino group, a phosphono group, a trifluoromethyl group, a straight-chain or branched alkyl group, a straight-chain or branched alkoxy group, an aryl group which may have a substituent, a phenoxy group which may have a substituent, a thiophenoxy group which may have a substituent, a phenyl group which may have a substituent, or a salt of these substances; M represents two hydrogen atoms, two Na atoms, two Li atoms, two metals, or a trivalent or tetravalent metal derivative, and wherein said phthalocyanine dye has at least two sulfonic acid groups or salts thereof in its structure.

Claim 30

A color filter according to claim 24 , wherein said water-soluble azopyridone dye and said phthalocyanine dye are contained in a weight ratio of 3:1 to 1:3.

Claim 31

A color filter according to claim 24 , wherein X in formula (1) is a trifluoromethyl group.

Claim 32

A color filter according to claim 26 , wherein Y in formula (1) is a sulfonic acid group or a methylsulfonyl group.

Claim 34

A liquid crystal display panel comprising the color filter according to any one of claims 24 to 27 .