JP2011215537A - Colored composition for color filter, and color filter using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colored composition for a color filter with a low viscosity; and a heat-resistant color filter using the composition.SOLUTION: The colored composition contains squarylium compound ions expressed by general formulae (A)-(D), and a squarylium compound made of hydrogen ions or transition metal ions. The color filter using the colored composition is also provided.

Description

  The present invention relates to a coloring composition for a color filter containing a squarylium compound and a color filter using the same.

Since color filters are required to have high transparency, a dyeing method for coloring with a dye has been performed. For example, a color filter can be produced by sequentially repeating a method of forming a pattern by pattern-exposing and developing a dyeable photoresist and then dyeing a filter color dye for all filter colors.
In addition to the dyeing method, a color filter can be produced by a method using a positive resist. The color filter produced by these methods has high transmittance and excellent optical properties because it uses a dye, but has limitations in light resistance and heat resistance.
In addition, a color filter using a pigment has a drawback that it is difficult to obtain optical characteristics such as a pigment and is inferior in viscosity and heat resistance (Patent Document 1).

JP 2008-088200 A

  An object of the present invention is to provide a coloring composition for a color filter having a low viscosity and a color filter having excellent heat resistance using the same.

  As a result of intensive studies, the present inventors have found that a coloring composition for a color filter using a squarylium compound and a color filter can solve the above problems, and have completed the present invention.

  That is, the present invention is as follows.

  1st invention is a coloring composition characterized by including the squarylium compound which consists of a squarylium compound ion represented by the following general formula (A)-(D), and a hydrogen ion or a transition metal ion.

（式（Ａ）中、Ｒ_１〜Ｒ_６は、同一又は異なってもよい水素、ハロゲン原子、置換基を有してもよいアルキル基、ハロゲン化アルキル基、シアノアルキル基、アルコキシ基、フェニルアルキル基、アルキルスルホン酸基を示し、Ｒ_２とＲ_３、Ｒ_３とＲ_４、Ｒ_５とＲ_６、Ｒ_６とＲ_１は連結して炭化水素環を形成してもよい。）

(In formula (A), R _{1 to} R ₆ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. And R ₂ and R ₃ , R ₃ and R ₄ , R ₅ and R ₆ , and R ₆ and R ₁ may be linked to form a hydrocarbon ring.

（式（Ｂ）中、Ｒ_７は、水素又は置換基を有してもよいアルキル基であり、Ｒ_８〜Ｒ_１１は、同一又は異なってもよい水素、ハロゲン原子、置換基を有してもよいアルキル基、ハロゲン化アルキル基、シアノアルキル基、アルコキシ基、フェニルアルキル基、アルキルスルホン酸基を示し、Ｒ_８とＲ_９、Ｒ_１０とＲ_１１は連結して炭化水素環を形成してもよい。）

(In Formula (B), R ₇ is hydrogen or an alkyl group that may have a substituent, and R _{8 to} R ₁₁ have the same or different hydrogen, halogen atom, and substituent. Represents an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an alkoxy group, a phenylalkyl group, an alkylsulfonic acid group, and R ₈ and R ₉ , R ₁₀ and R ₁₁ are linked to form a hydrocarbon ring. May be good.)

（式（Ｃ）中、Ｒ_１２〜Ｒ_１４は、同一又は異なってもよい水素、ハロゲン原子、置換基を有してもよいアルキル基、ハロゲン化アルキル基、シアノアルキル基、アルコキシ基、フェニルアルキル基、アルキルスルホン酸基を示す。）

(In the formula (C), R _{12 to} R ₁₄ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. Group represents an alkylsulfonic acid group.)

（式（Ｄ）中、Ｒ_１５〜Ｒ_１９は、同一又は異なってもよい水素、ハロゲン原子、置換基を有してもよいアルキル基、ハロゲン化アルキル基、シアノアルキル基、アルコキシ基、フェニルアルキル基、アルキルスルホン酸基を示し、ＸはＯ、Ｓ、Ｎ−Ｒ_２０、Ｃ−Ｒ_２１Ｒ_２２（Ｒ_２０〜Ｒ_２２は同一又は異なってもよい水素、ハロゲン原子、置換基を有してもよいアルキル基、ハロゲン化アルキル基、シアノアルキル基、アルコキシ基、フェニルアルキル基、アルキルスルホン酸基を示す。）を示す。）

(In the formula (D), R _{15 to} R ₁₉ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. Group, an alkylsulfonic acid group, X is O, S, N—R ₂₀ , C—R ₂₁ R ₂₂ (R _{20 to} R ₂₂ may be the same or different and each has a hydrogen atom, a halogen atom or a substituent. An alkyl group, a halogenated alkyl group, a cyanoalkyl group, an alkoxy group, a phenylalkyl group, or an alkylsulfonic acid group.

  2nd invention is a coloring composition for color filters as described in 1st invention characterized by containing a binder component.

  3rd invention is a color filter provided with the layer containing the coloring composition for color filters as described in 1st or 2nd invention.

  ADVANTAGE OF THE INVENTION According to this invention, the coloring composition for color filters which is excellent in a viscosity, and the color filter which is excellent in heat resistance using the same can be provided.

  The coloring composition for color filters will be described.

The coloring composition for a color filter of the present invention is obtained by using a squarylium compound represented by the general formulas (A) to (D) as a coloring pigment and dispersing the squarylium compound in an organic solvent. Can do.
The coloring composition for a color filter of the present invention may contain a binder component, silica particles, an additive and the like in addition to the organic solvent.

  A coloring pigment | dye is a squarylium compound which consists of a squarylium compound represented by general formula (A)-(D), and a hydrogen ion or a transition metal ion.

In general formula (A), R _{1 to} R ₆ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. R ₂ and R ₃ , R ₃ and R ₄ , R ₅ and R ₆ , R ₆ and R ₁ may be linked to form a hydrocarbon ring.

In general formula (B), R ₇ is hydrogen or an alkyl group which may have a substituent, and R _{8 to} R ₁₁ have the same or different hydrogen, halogen atom and substituent. Represents an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an alkoxy group, a phenylalkyl group, an alkylsulfonic acid group, and R ₈ and R ₉ , R ₁₀ and R ₁₁ are linked to form a hydrocarbon ring. Also good.

In general formula (C), R _{12 to} R ₁₄ may be the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. Group, an alkylsulfonic acid group.

In the general formula (D), R _{15 to} R ₁₉ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. Group, an alkylsulfonic acid group, X is O, S, N—R ₂₀ , C—R ₂₁ R ₂₂ (R _{20 to} R ₂₂ may be the same or different and each has a hydrogen atom, a halogen atom, or a substituent. An alkyl group, a halogenated alkyl group, a cyanoalkyl group, an alkoxy group, a phenylalkyl group, or an alkylsulfonic acid group.

  Examples of transition metal ions include nickel ions, iron ions, copper ions, cobalt ions, zinc ions, magnesium ions and the like, with nickel ions being particularly preferred.

  As said halogen atom, a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom are mentioned, Preferably a fluorine atom is mentioned.

  Examples of the alkyl group which may have a substituent include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, tert-butyl group, sec-butyl group, n-pentyl group, n- Examples thereof include straight-chain or branched alkyl groups having 1 to 20 carbon atoms such as hexyl group, n-heptyl group, n-octyl group, n-decyl group, n-dodecyl group and n-octadecyl group. Preferred are 10 linear or branched alkyl groups.

  The halogenated alkyl group is a linear or branched halogenated alkyl group having 1 to 12 carbon atoms. The halogen atom of the halogenated alkyl group is particularly preferably a fluorine atom, that is, a fluorinated alkyl group, from the viewpoint of excellent effects of improving the sensitivity of the squarylium compound and the compatibility with the resin.

  Examples of the fluorinated alkyl group include trifluoromethyl group, 2,2,2-trifluoroethyl group, 3,3,3-trifluoropropyl group, 4,4,4-trifluorobutyl group, 5,5,5, 5-trifluoropentyl group, 6,6,6-trifluorohexyl group, 8,8,8-trifluorooctyl group, 2-methyl-3,3,3-trifluoropropyl group, perfluoroethyl group, perfluoropropyl Group, perfluorobutyl group, perfluorohexyl group, perfluorooctyl group, 2-trifluoromethyl-perfluoropropyl group and the like.

  The cyanoalkyl group is preferably a linear or branched cyanoalkyl group having 1 to 10 carbon atoms, and the number of substituted cyano groups is preferably 1 to 3. Particularly preferred are propionitrile group, butyronitrile group, pentylnitrile group, 1-methylpropionitrile group, 1-methylbutyronitrile group and the like.

  As the alkoxy group, methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, 2-methoxyethoxy group, pentyloxy group, hexyloxy group, octyloxy group, decyloxy group, methoxymethyl group, methoxyethyl group , Methoxypropyl group, methoxybutyl group, methoxyhexyl group, methoxyoctyl group, ethoxyethyl group, ethoxyethyl group, ethoxypropyl group, ethoxybutyl group, ethoxyhexyl group, ethoxyoctyl group, propoxymethyl group, propoxypropyl group, propoxy C1-C18 linear or branched alkoxy groups, such as a hexyl group and a butoxyethyl group, are mentioned.

  As said phenylalkyl group, the C1-C8 thing of an alkyl group is preferable, and a phenyl group may have a substituent, an alkyl group, a hydroxyl group, a sulfonic acid group, an alkylsulfonic acid group, a nitro group, You may have an at least 1 sort (s) of substituent from the group which consists of an amino group, an alkoxy group, a halogenated alkyl group, and a halogen. Examples of the phenylalkyl group include benzyl group, phenethyl group, phenylpropyl group, phenyl-α-methylpropyl group, phenyl-β-methylpropyl group, phenylbutyl group, and phenylpentyl group.

  As said alkylsulfonic acid group, a C1-C6 alkylsulfonic acid group is preferable. Specific examples include a methyl sulfonic acid group, an ethyl sulfonic acid group, and a propyl sulfonic acid group.

  Specific examples of the squarylium compound ions (chemical formulas (1) to (24)) are shown below.

  Since the maximum absorption wavelength of the squarylium compound of the present invention is 380 to 450 nm, it is preferably used as a yellow color among the three primary colors.

  The colored composition of the present invention includes a colored dye, an organic solvent, silica particles, and a binder containing a squarylium compound ion composed of a squarylium compound ion represented by general formulas (A) to (D) and a hydrogen ion or a transition metal ion. You may contain a component, an additive, etc.

  Examples of the binder component include an acrylic resin or a polyester resin.

As acrylic resin, acrylic acid, methyl acrylate, ethyl acrylate, n-butyl acrylic acid, 2-ethyl acrylic acid, 2-hydroxyethyl acrylic acid, methacrylic acid, methyl methacrylate, ethyl methacrylate, styrene An acrylic polymer composed of maleic acid or phthalic acid.
The average molecular weight of the acrylic resin is preferably 1000 to 100,000, and more preferably 1000 to 10,000.

Examples of the polyester resin include polymerized polyester, polyester amide acid, polyester-based acrylic graft polyester, and polyester urethane.
The average molecular weight of the polyester resin is preferably from 1,000 to 100,000, more preferably from 1,000 to 10,000.

  1-50 mass% is preferable, as for content of the binder component in a coloring composition, 5-45 mass% is more preferable, and 10-40 mass% is mentioned especially preferably.

Examples of the silica particles include precipitated silica, fumed silica, colloidal silica, and the like. All of these have hydrophilicity because silanol groups exist on the surface.
Since silica particles have different organic solvents depending on the coloring pigments to be used, it is necessary to adjust the dispersion state of the silica particles in the coloring composition in accordance with the organic solvent to be used.
The silica particles are preferably prepared by hydrophobizing at least a part of the silanol groups on the surface. As a method of hydrophobizing the surface of silica particles, the silanol groups on the surface of silica particles can be converted to alkylsilyl groups by reacting silica with a silylating agent such as a disiloxane compound, an alkylalkoxysilane compound, or an organic silicon halide compound. And a method of modifying with a hydrophobic group.

  The average particle diameter of the silica particles is preferably 1 to 50 nm, more preferably 3 to 40 nm, and particularly preferably 3 to 30 nm.

  0.01-5.0 mass% is preferable and, as for the compounding quantity of the silica particle in a coloring composition, 0.01-3.0 mass% is mentioned more preferably.

As the organic solvent, those that dissolve the binder component to be used are preferably used. For example, amide polar solvents such as N-methyl-2-pyrrolidone, N, N-dimethylacetamide, N, N-dimethylformamide, β -Lactones such as propolactone, γ-butyrolactone, γ-valerolactone, δ-valerolactone, γ-caprolactone, ethylene such as methyl cellosolve, ethyl cellosolve, methyl carbitol, ethyl carbitol, propylene glycol, monoethylene glycol Examples include glycol or propylene glycol derivatives, aliphatic esters such as ethyl acetoacetate, methyl-3-methoxypropionate, and 3-methyl-3-methoxybutanol, ethanol, cyclopentanone, and cyclohexanone.
An organic solvent may be individual and may be used in mixture of 2 or more types.

  The total amount of the organic solvent is preferably 60 to 95% by mass, more preferably 65 to 95% by mass, and particularly preferably 70 to 95% by mass.

Examples of the additive include a surfactant, an antioxidant, a light stabilizer, and a processing stabilizer.
As the surfactant, a silicon surfactant, an acrylic surfactant, a fluorine surfactant, or the like can be used. As the antioxidant, a hindered phenol compound or the like can be used. As the light stabilizer, hindered amine compounds, diimonium compounds, and aminium compounds can be used. A phosphorus compound can be used as the processing stabilizer.

<Color filter>
The color filter of the present invention will be described.

The color filter of the present invention can be produced by using the colored composition and applying the colored composition onto a substrate.
As a method of applying the coloring composition on the substrate, a method of applying to the substrate by a spin coater, a bar coater, a blade coater, a roll coater, a die coater, an ink jet printing method, a screen printing method, or the like, or immersing the substrate in a solvent The method and the method of spraying a solution on a substrate can be used. As the substrate, a transparent substrate such as soda glass, alkali-free glass, borosilicate glass, or quartz glass is used.

  After apply | coating the coloring composition of this invention on a transparent substrate by the said method, it is made to dry and the coating film of a coloring composition is produced. In the case of heat drying, it is preferable to use an oven, a hot plate, etc., and perform it in the range of 50-180 degreeC for 1 minute-3 hours.

  It can also be obtained by applying a coloring composition to the surface of a substrate provided with a black matrix, curing by heat or polymerizing by light and then curing by heat.

  In addition, as a method for producing a color filter, there are a method of forming a pattern with a photoresist and then dyeing the pattern, and a method of forming a pattern with a photoresist added with a colorant. When the squarylium compound of the present invention is used, it can be produced in any case. Preferably, a positive resist composition containing a thermosetting resin, a quinonediazide compound, a crosslinking agent, a coloring compound, and an organic solvent is formed on the substrate. After the coating, the film is exposed through a mask to form an exposed positive resist pattern, the entire surface of the positive resist pattern is exposed, and the exposed positive resist pattern is cured to produce a color filter.

  A black matrix is formed and an RGB primary color system or Y.I. M.M. A C-complementary color filter can be obtained. The black matrix is preferably a resin black matrix in which a light shielding material such as carbon black or titanium black is dispersed in the resin.

  The color filter produced using the coloring composition for a color filter of the present invention has a high heat resistance.

  Hereinafter, the present invention will be described in more detail based on examples. In addition, this invention is not limited at all by this Example. “%” In the examples represents “% by mass”.

<Synthesis of squarylium compound>
The squarylium compounds (compounds (a) to (j)) used in this example are summarized in Table 1.

(Production of squarylium compound (a))
In a three-necked flask equipped with a condenser tube, 5.0 parts of 3,4-dichloro-3-cyclobutene-1,2-dione and 4.6 parts of N, N-dibutylaniline are placed, and 80 parts of dehydrated toluene are added thereto. And stirred at room temperature for 24 hours. After completion of the reaction, the mixture was washed with an aqueous NaHCO ₃ solution, extracted with toluene, and the solvent was distilled off under reduced pressure. The obtained solid was collected by filtration under reduced pressure, washed with hexane, and dried under reduced pressure to give 3-chloro-4- [4- (N, N-dibutylamino) phenyl] 3-cyclobutene-1,2-dione 5 .5 parts were obtained.

  In a three-necked flask equipped with a condenser, 5.5 parts of 3-chloro-4- [4- (N, N-dibutylamino) phenyl] 3-cyclobutene-1,2-dione and acetic acid: water = 4: 50 parts of 1 mixed solution was added and stirred with heating at 100 ° C. for 5 hours. After the reaction, the reaction mixture was cooled to room temperature, and the precipitated solid was collected by filtration under reduced pressure. After washing with water and drying under reduced pressure, 4.1 parts of squarylium compound (a) was obtained.

(Production of squarylium compound (b))
The squarylium compound (b) was prepared in the same manner as the squarylium compound (a) except that N, N-dibutylaniline was replaced with N, N-dimethyl-1-naphthylamine in the method of producing the squarylium compound (a). Obtained.

(Production of squarylium compound (c))
In a three-necked flask equipped with a condenser tube, 12.3 parts of 3,4-dichloro-3-cyclobutene-1,2-dione and 10.9 parts of anhydrous aluminum chloride are placed, and 100 ml of anhydrous chloroform is placed therein, and nitrogen is added. Stir at room temperature under atmosphere. Thereto, 10.0 parts of anisole dissolved in 20 ml of anhydrous chloroform was added dropwise at room temperature. After completion of dropping, the mixture was stirred with heating for 10 hours. After completion of the reaction, 100 ml of water was added in a state cooled to 10 ° C. or lower, the organic layer was washed with water, and the solvent was distilled off under reduced pressure. The resulting solid was collected by filtration under reduced pressure, washed with toluene, and dried under reduced pressure to give 11.6 parts of 3-chloro-4- (p-methoxy-phenyl) -cyclobut-3-ene-1,2-dione. Got.
In a three-necked flask equipped with a condenser, 11.6 parts of 3-chloro-4- (p-methoxy-phenyl) -cyclobut-3-ene-1,2-dione and acetic acid: water = 1: 1 mixed solution 200 parts were added and stirred with heating at 100 ° C. for 8 hours. After the reaction, the mixture was cooled to room temperature, the solvent was removed under reduced pressure, and the precipitated solid was collected by filtration under reduced pressure. After washing with water and drying under reduced pressure, 8.6 parts of squarylium compound (c) was obtained.

(Production of squarylium compound (d))
In a three-necked flask, 6.2 parts of 3,4-dimethoxy-3-cyclobutene-1,2-dione and 7.6 parts of 3-methyl-1- (3-propyl) -5-pyrazolone (manufactured by Lancaster) Then, 500 ml of methanol was added thereto and stirred at room temperature. Thereto, 5.9 parts of anhydrous potassium carbonate was added and stirred at room temperature for 5 hours. After completion of the reaction, the solid was filtered and washed with methanol. To the obtained solid, 200 ml of water and 2.7 parts of potassium carbonate were added, and the mixture was heated and stirred at 50 ° C. for 2 hours. After completion of the reaction, the solution was poured into 500 ml of 1M hydrochloric acid and the precipitated solid was filtered. After washing with water, it was dried under reduced pressure to obtain 4.3 parts of squarylium compound (d).

(Production of squarylium compound (e))
The squarylium compound (e) was obtained in the same manner as the squarylium compound (d) except that the method for producing the squarylium compound (d) was replaced with N-ethyl-2-methylthiazolium iodide.

(Production of squarylium compound (f))
Put 4.1 parts of squarylium compound (a) and 4.0 parts of nickel acetate tetrahydrate in a three-necked flask equipped with a condenser, add 100 parts of THF, and heat and stir at 60 ° C. for 4 hours. did. After the reaction, the reaction mixture was cooled to room temperature, and the precipitated solid was collected by filtration under reduced pressure. After washing with water and drying under reduced pressure, 8.3 parts of 3-hydroxy-4- [4- (N-dibutylamino) phenyl] 3-cyclobutene-1,2-dione-nickel complex (squarylium compound (f)) was added. Obtained.

(Production of squarylium compound (g))
A squarylium compound (g) was obtained by the same method as the squarylium compound (f) except that the squarylium compound (a) was replaced with (b).

(Production of squarylium compound (h))
The squarylium compound (h) was obtained by the same method as the squarylium compound (f) except that the squarylium compound (a) was replaced with (c).

(Production of squarylium compound (i))
The squarylium compound (i) was obtained by the same method as the squarylium compound (f) except that the squarylium compound (a) was replaced by (d).

(Production of squarylium compound (j))
A squarylium compound (j) was obtained by the same method as the squarylium compound (f) except that the squarylium compound (a) was replaced by (e).

  Examples 1 to 10 use squarylium (a) to (j) as coloring dyes, and Comparative Examples 1 and 2 use PY138 (“Pariotor Yellow” D0960 manufactured by BASF) and PY185 (manufactured by BASF Corporation) as coloring dyes. Paliotor Yellow "D1155) was used.

Example 1
(Adjustment of coloring composition)
10 parts of squarylium compound (a), 12.5 parts of cationic polymer PB-814 (solid content 40%) manufactured by Ajinomoto Fine Techno Co., 41.2 parts of propylene glycol monomethyl ether acetate, 5 parts of organosilica gel are stirred. A colored composition was obtained by mixing uniformly.
(Production of color filter)
The obtained colored composition was spin-coated on a glass substrate, and then the organic solvent was evaporated. The glass substrate was then exposed through a mask. Thereafter, heating was performed at 100 ° C., and then the exposed portion was removed by alkali development to obtain a positive colored pattern having a resolution of 0.8 μm. After the entire surface was exposed, it was heated at 150 ° C. for 15 minutes to obtain a color filter.

(Examples 2 to 10, Comparative Examples 1 and 2)
In Examples 2 to 10 and Comparative Examples 1 and 2, in the same manner as in Example 1, color filters corresponding to Table 2 were used instead of squarylium (a) to produce color filters.

(Evaluation method for measuring viscosity of color composition and spectrum of color filter)
Table 2 shows the viscosity of the coloring composition and the spectral maximum peak of the color filter.

(Evaluation method of heat resistance of color filter)
The color filter was heated at 250 ° C. for 1 hour, and then evaluated by the residual film and color difference with respect to the film thickness and color purity. The case where the remaining film ratio was 97% or more was rated as ○, and the case where it was less than 97% was rated as ×. The case where the color difference was less than 1 was marked with ◯, and the case where the color difference was above was marked with ×. The measurement results are shown in Table 2.

  From Table 3, it was found that Examples 1 to 10 had low viscosity and excellent heat resistance.

  Since the colored composition using the squarylium compound of the present invention has a yellow color, it can be applied to paints, plastics, printing inks, rubbers, lasers, electrophotographic toners, jet inks, thermal transfer inks and the like in addition to color filter applications.

Claims (3)

A coloring composition for a color filter comprising a squarylium compound consisting of a squarylium compound ion represented by the following general formulas (A) to (D) and a hydrogen ion or a transition metal ion.

(In formula (A), R _{1 to} R ₆ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. And R ₂ and R ₃ , R ₃ and R ₄ , R ₅ and R ₆ , and R ₆ and R ₁ may be linked to form a hydrocarbon ring.

(In Formula (B), R ₇ is hydrogen or an alkyl group that may have a substituent, and R _{8 to} R ₁₁ have the same or different hydrogen, halogen atom, and substituent. Represents an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an alkoxy group, a phenylalkyl group, an alkylsulfonic acid group, and R ₈ and R ₉ , R ₁₀ and R ₁₁ are linked to form a hydrocarbon ring. May be good.)

(In the formula (C), R _{12 to} R ₁₄ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. Group represents an alkylsulfonic acid group.)

(In the formula (D), R _{15 to} R ₁₉ are the same or different hydrogen, halogen atom, optionally substituted alkyl group, halogenated alkyl group, cyanoalkyl group, alkoxy group, phenylalkyl. Group, an alkylsulfonic acid group, X is O, S, N—R ₂₀ , C—R ₂₁ R ₂₂ (R _{20 to} R ₂₂ may be the same or different and each has a hydrogen atom, a halogen atom or a substituent. An alkyl group, a halogenated alkyl group, a cyanoalkyl group, an alkoxy group, a phenylalkyl group, or an alkylsulfonic acid group.   The coloring composition for a color filter according to claim 1, further comprising a binder component.   A color filter comprising a layer containing the color filter coloring composition according to claim 1.