JP5686381B2 - Method for producing asymmetric polyazo dye and coloring agent - Google Patents

Description

  The present invention relates to an asymmetric polyazo dye, a method for producing the same, a colorant, and a coloring method. More specifically, the asymmetric polyazo dye is an asymmetric polyazo dye having two or more monoazo dye residues having different structures in one molecule, a production method for making the asymmetric type, a colorant thereof, and It relates to a coloring method using the same.

  Conventionally, when coloring an article using a pigment, in order to adjust to a desired color tone, a pigment having an appropriate color tone is selected in consideration of the required performance, and a method of blending while looking at the color, i.e., adjusting the color tone. Implemented in color. Specifically, toning is performed by a method of appropriately selecting from powder pigments and high-concentration processed products of pigments according to the use and mixing them. In this case, simple pigment mixtures may have different pigment properties such as the density of individual pigments, coarse particle hardness, particle size distribution, etc., and differences in dispersibility in the preparation of liquid pigment dispersions. In some cases, there was a difference in storage stability. In such a case, in order to solve the problem by integrating a plurality of kinds of mixed pigments, the integration has been achieved by the following method. For example, by mixing multiple types of pigments that you want to use, dissolving the pigment molecules in a solvent that can be dissolved together without degrading or changing them, a method called eutectoid or coprecipitation, or even at the molecular level There is a method of making a mixed crystal shape integrated with each other. Since the only common solvent that can be used in this case is sulfuric acid or the like, the above-mentioned method is robust, such as phthalocyanine, anthraquinone, quinacridone, perinone / perylene, and dioxazine, which are mainly classified as polycyclic pigments. Used for pigments of various molecular structures.

  In addition, in the case of azo pigments, a production method in which one or more kinds of diazo components and one or more kinds of coupling components are mixed or sequentially subjected to a coupling reaction is employed. Various coupling methods have been put to practical use. For example, for one type of diazo component or coupling component, multiple types of components that react with the coupling are used, generally referred to as “mixed coupling method”, and as a special case, prevention of crystallinity and particle growth For this purpose, there is a method generally called “accessory coupling method” in which a small amount of an ionic or nonionic diazo component or a coupling component is mixed.

  However, since the pigment constituting these devices is a different molecule, it is a mixture of pigment particles, and it cannot be avoided that it is a mixture of pigment molecules even when mixed crystals. Therefore, development of pigments having two or more kinds of coloring molecular structures in one molecule is expected.

  Structures such as sulfonic acid groups and tertiary amino groups that are effective as additives for suppressing crystal transition and crystal growth of pigments, as in the case of pigments obtained by the accessory coupling method using the ionic components described above. There is also a demand for the development of pigment derivatives that have improved performance such as improved pigment dispersibility, dispersibility of dispersed color pigments, reduced viscosity, dispersion stability, and storage stability.

As described above, conventional pigments have been improved in pigment physical properties such as hue adjustment, crystallinity, and stability of micronization in the form of toning, coprecipitation, or mixed crystals of a plurality of different pigments. However, in any case, defects due to the constituent pigment being a mixture of different pigment molecules are inevitable. Therefore, a new pigment coloring system that provides pigment properties such as a new hue, new crystallinity, and particle property by using dyes having different color developing molecular structures within the same molecule is expected. In addition, the use of an ionic diazo component or a coupling component can improve the performance of additives such as additives for suppressing crystal transition and growth of pigments and the reduction in viscosity and stability of solvent-based pigment dispersion colors. Development of a novel ionic derivative of a pigment is expected.
Accordingly, an object of the present invention is to make it possible to provide the above-described new pigment coloring system, as well as an ionic derivative of a novel pigment.

  Conventionally, as a pigment having a plurality of chromophores in the same molecule, an azo-based highly fast pigment, a pigment called a high molecular weight azo pigment or simply a polyazo pigment (bisazo pigment) has been used. For example, as a representative pigment, C.I. I. Pigment Red (hereinafter abbreviated as “PR”) 144, PR166, PR221, PR214, PR242, and orange pigment C.I. I. Pigment Orange (hereinafter abbreviated as “PO”) 31, C.I. I. Pigment Brown (hereinafter abbreviated as “PBr”) 23 and the like. As methods for synthesizing these polyazo pigments, there are a condensation method and a coupling method. When synthesizing by a condensation method, first, a diazo component is coupled with hydroxynaphthoic acid to form a carboxylic acid of a monoazo dye, then an amide bond with an aromatic diamine and linked to form a polyazo dye (bisazo dye) It is synthesized by the method.

  As a result of intensive studies to achieve the object of the present invention, the present inventors have further developed the molecular structure of the above polyazo pigment having two identical azo dye residues in the same molecule. By using different diazo components or coupling components, it is possible to synthesize azo pigments having two or more different color forming molecular structures in the same molecule, and if the dye has such a molecular structure, The present inventors have found that the above problems can be solved and have completed the present invention.

That is, the present invention is an asymmetric polyazo dye in which different monoazo dye residues (A) and monoazo dye residues (B) are linked by an arylene poly (carboxamide) group, and each monoazo dye residue is a residual coupler. it was coupled the group and a diazo component, to provide a production method of the following (1) to asymmetric polyazo dye molecular structure selected from the group consisting of (3) One of the non-symmetric polyazo dye.
(1) Each of the coupler residue monoazo dye residue (A) and in a monoazo dye residue (B) is the residue of identical couplers (C), and, as diazo components, different diazo component (E ) and each of the coupler residues in the diazo component (F) coupling the polyazo dye molecular structure (2) a monoazo dye residue (a) and a monoazo dye residue (B), different coupler (C) and coupler ( D) and a polyazo dye molecular structure coupled with the same diazo component (E) as the diazo component (3) each of the monoazo dye residue (A) and the monoazo dye residue (B) coupler residue, a residue of different coupler (C) and coupler (D), and, as diazo components, different diazo component (E) and the diazo component (F) cup Packaging the polyazo dye molecule structure
(I) The asymmetric polyazo dye having the above structure (1) is a “coupler nitro compound” which is a coupler having a nitro group by reacting a carboxy group of the coupler (C) with a nitroarylamine. [2] Reduction of the nitro group into a “coupler amino form”, [3] “Monoazo dye carboxylic acid or acid obtained by coupling the diazo component (E) to the coupler (C) separately prepared The “halide derivative” is condensed with the “coupler amino compound” obtained in [2] above to obtain a “dye coupler” which is a coupler having a monoazo dye, and [4] the diazo component (F) is cupped on the dye coupler. It is characterized by ring,
(II) The asymmetric polyazo dye having the structure of (2) above is a “coupler nitro compound” which is a coupler having a nitro group by reacting a carboxy group of the coupler (C) with a nitroarylamine. [2] The nitro group is reduced to a “coupler amino form”, and [3] a carboxy group or acid halide derivative of the coupler (D) prepared separately is condensed to form an “asymmetric coupler dimer”. [4] The diazo component (E) is coupled to both coupler residues of the dimer,
(III) The asymmetric polyazo dye having the structure of (3) above is a “coupler nitro body” which is a coupler having a nitro group by reacting a carboxy group of [1] coupler (C) with a nitroarylamine. [2] Reduction of the nitro group into a “coupler amino form”, [3] “monoazo dye carboxylic acid or acid obtained by coupling the diazo component (F) to the coupler (D) separately prepared The “halide derivative” is condensed with the “coupler amino compound” obtained in [2] above to obtain a “dye coupler” which is a coupler having a monoazo dye, and [4] the diazo component (E) is cupped on the dye coupler. It is made to ring .

Preferred examples of the asymmetric polyazo dye of the present invention include the following.
The coupler used for forming the coupler (C) or the residue of the coupler (D) has a carboxyl group, and the coupler is 3-hydroxy-2-naphthoic acid or 6-hydroxy-2-naphthoic acid. 2-hydroxy-3-anthracenecarboxylic acid, 2-hydroxy-3-dibenzofurancarboxylic acid, 2-hydroxy-1-carbazolecarboxylic acid and 2-hydroxy-11H-benzo [a] -carbazole-3-carboxylic acid The same or different couplers, each selected from the group consisting of:
The ants over Renpori (carbamide) group, to no or have a substituent, phenylenediamine, diaminonaphthalene, diaminobiphenyl, bis (aminophenyl) ether, methylene - bis (aminophenyl), bis (aminophenyl) sulfide, bis (aminophenyl) sulfonyl and be the residue of ants over diamine selected from the group consisting of diaminopyridine;
The ants over diamine has one or two or more substituents, the substituent is an alkyl (carbon number: 1-10) groups, alkoxy (carbon number: 1-10) group, a trifluoromethyl group An alkyloxycarbonyl group, an alkylsulfonyl group, an aminosulfonyl group, an alkylsulfoamide group, a phenylsulfamide group, an alkylaminosulfonyl group, an anilinosulfonyl group, an aminocarbonyl group, a benzamide group, an alkylaminocarbonyl group, an anion. Linocarbonyl group; carboxyl group, sulfone group, sulfate ester group, phosphate ester group; consisting of amino group, alkylimino group, hydroxyalkylimino group, dialkylamino group, bis (hydroxyalkyl) amino group and quaternary alkylammonium group Any group selected from the group, and It is the same or different two or more groups selected from said group.

The diazo component (E) or the diazo component (F) is, to have no or have a substituent group, to have the skeleton of the skeleton or molecules from heterocyclic amine of molecules from ants over triethanolamine;
The ants over triethanolamine or heterocyclic amine, to no or have a substituent, aniline, naphthylamine, amino-anthracene, amino anthraquinone, where any selected from the group consisting of amino dibenzofuran and amino carbazole, the substituents The substituent in the case of having an alkyl (carbon number: 1-10) group, alkoxy (carbon number: 1-10) group, trifluoromethyl group, halogen group, nitro group; alkyloxycarbonyl group, alkylsulfonyl group, amino group Sulfonyl group, alkylsulfamido group, phenylsulfamido group, alkylaminosulfonyl group, anilinosulfonyl group, aminocarbonyl group, benzamide group, alkylaminocarbonyl group, anilinocarbonyl group; carboxyl group, sulfone group, sulfuric acid ester A group selected from the group consisting of an amino group, an alkylimino group, a hydroxyalkylimino group, a dialkylamino group, a bis (hydroxyalkyl) amino group and a quaternary alkylammonium group; Or two or more identical or different groups selected from the group.

The present invention also provides a colorant comprising the asymmetric polyazo dye as a coloring material. The colorant further includes a liquid medium, a diluent medium of either a polymerizable liquid medium or a resin medium, and / or a thermoplastic polymer, a reactive polymer, a reactive oligomer, a polymerizable monomer, and a crosslinking agent. One or more film-forming materials selected from the group consisting of:
The colorant only needs to contain the asymmetric polyazo dye of the present invention as a colorant, and can further contain a known pigment as necessary; an organic solvent-based, aqueous-based or water-hydrophilic as a diluent medium; Liquid medium composed of organic solvent mixed solvent system; can contain either polymerizable oligomer or polymerizable liquid medium composed of polymerizable monomer; uses resin medium composed of plasticizer, oligomer, synthetic resin, and / or The coating film forming material may contain one or more materials selected from the group consisting of thermoplastic polymers, reactive polymers, reactive oligomers, polymerizable monomers and crosslinking agents; necessary Depending on the case, it may further contain additives such as a polymer dispersant, a low molecular dispersant, a curing catalyst, and a polymerization catalyst.

  The present invention also provides a colorant comprising the asymmetric polyazo dye as a coloring material, wherein the dye has a hydrophobic diazo component (E) and an anionic or cationic ionic group. The asymmetric polyazo dye having an asymmetric polyazo dye molecular structure according to the above (1) or (3) comprising an ionic pigment derivative coupled with a diazo component (F), and further, the diazo component ( There is provided a colorant comprising a compound having a cationic or anionic group which becomes ionic and counterionic in F) and an organic solvent as a diluent medium.

  The colorant is a dyeing agent, a printing agent, a paint, a printing ink, a stationery, a paint, a resin coloring agent, an ink for inkjet printing, a developer for electrophotographic printing, a developer for electrostatic printing, or an ink for forming a color filter pixel. Either is preferable.

  Further, the present invention contains, as a coloring material, an asymmetric polyazo dye and pigment obtained by coupling a hydrophobic diazo component (E) and a diazo component (F) having an anionic or cationic ionic group, Further, a coloring agent characterized by containing a polymeric dispersant having a cationic or anionic group that becomes ionic and counterionic as an asymmetric polyazo dye as a dispersion aid, and using an organic solvent as a diluent medium Provide the agent.

In addition, the present invention is selected from dyeing, textile printing, painting, printing, writing, drawing, resin coloring, ink jet printing, electrophotographic printing, electrostatic printing or color filter pixel forming method using the above-described colorant. Provided is a coloring method of an article characterized by coloring with any coloring method. Further, the color filter pixel forming method, and provide the color filter on a substrate, the photoresist method, inkjet Tsu footprint method, a printing method, a coloring method of the article is the pixel formed by either transfer method or sticking method Furthermore, a colored article characterized by being colored by these methods is provided.

  When a pigment is used in the present invention, the pigment includes anthraquinone pigment, quinacridone pigment, diketopyrrolopyrrole pigment, indigo / thioindigo pigment, perinone pigment, perylene pigment, phthalocyanine pigment, indoline. Organic pigments composed of pigments, isoindoline pigments, isoindolinone pigments, dioxazine pigments, quinophthalone pigments, nickel azo pigments, metal complex pigments, insoluble azo pigments, soluble azo pigments, high molecular weight azo pigments, and the like It must be at least one pigment selected from the group consisting of inorganic pigments such as carbon black pigments, composite oxide pigments, iron oxide pigments, titanium oxide pigments, or a mixture of two or more pigments or a mixed crystal pigment. Said pigment is C.I. I. Pigment Red (hereinafter abbreviated as “PR”) 5, PR9, PR122, PR123, PR146, PR166, PR168, PR171, PR177, PR216, PR224, PR226, PR242, PR254, C.I. I. Pigment Yellow (hereinafter abbreviated as “PY”) 20, PY24, PY62, PY74, PY93, PY109, PY110, PY113, PY114, PY117, PY125, PY138, PY139, PY150, PY154, PY155, PY180, PY185, C . I. Pigment Blue (hereinafter abbreviated as “PB”) 15: 3, PB15: 6, PB60, C.I. I. Pigment Green (hereinafter abbreviated as “PG”) 7, PG36, PG58, poly (12-16) bromocopper phthalocyanine, C.I. I. It is preferably at least one selected from pigment violet (hereinafter abbreviated as “PV”) 19 and PV23.

  According to the present invention having the above-described configuration, a novel dye that is an asymmetric polyazo dye in which different monoazo dye components are bonded in one molecule is provided. As a result, with conventional pigments, improvements in pigment properties such as hue adjustment, crystallinity, and stability of micronization achieved in the form of toning, coprecipitation, or mixed crystals of different pigments can be achieved within the same molecule. Coloring method that can be applied to various uses using new pigments that provide pigment properties such as new hue, new crystallinity, and particle properties by using new dyes with different color developing molecular structures Can be expected.

Further, by combining the asymmetric azo dyes obtained by introducing an ionic group at one monoazo component, by treating it to other pigments, as an additive for the control of crystal transition or crystal growth of pigment It can be used as an effective pigment derivative or a pigment derivative with improved performance such as improved dispersibility of pigments of solvent-based pigment dispersion color, reduced viscosity of dispersion, dispersion stability, and long-term storage stability.

Next, the present invention will be described in more detail with reference to the best mode for carrying out the invention.
The molecular structure of the asymmetric polyazo dye characterizing the present invention is an asymmetric molecular structure in which the constituent monoazo dyes are different, and different monoazo dye residues (A) (shown as “AzA” in the following general formula). monoazo dye residue (B) (in the general formula shown as "AzB".) was ligated to the ant alkarylene group by carboxamide group, in asymmetric polyazo dye represented by formula (I) shown below is there. Incidentally, "Ar" in formula (I) represents the ants over skeleton ants over diamine which will be described later, below the -CONH-Ar-NHCO- referred to as "ant over Renpori (carbamide) group".
[AzA] -CONH-Ar-NHCO- [AzB] (I)

  The asymmetric polyazo dyes described above can have the following asymmetric molecular structures (1) to (3) depending on the combination of the coupler component and the diazo component of the constituent monoazo dye. In the following general formula, the residue of the coupler (C) is indicated as “CpC”, the residue of the coupler (D) as “CpD”, the residue of the diazo component (E) as “DzE”, the diazo component ( The residue of F) is indicated as “DzF”.

(1) Each coupler residue in the monoazo dye residue (A) and the monoazo dye residue (B) is a residue of the same coupler (C), and different diazo components (E) as diazo components A polyazo dye molecular structure represented by the following general formula (II) in which a diazo component (F) is coupled.
[DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpC] -N = N- [DzF] (II)

(2) The respective coupler residues in the monoazo dye residue (A) and the monoazo dye residue (B) are different couplers (C) and (D) residues [CpC] and [CpD], and A polyazo dye molecular structure represented by the following general formula (III) in which the same diazo component (E) is coupled as the diazo component.
[DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpD] -N = N- [DzE] (III)

(3) The respective coupler residues in the monoazo dye residue (A) and the monoazo dye residue (B) are different coupler (C) and coupler (D) residues, and different diazo components are used as diazo components. Polyazo dye molecular structure in which component (E) and diazo component (F) are coupled.
[DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpD] -N = N- [DzF] (IV)

Next, components constituting the asymmetric polyazo dye and a synthesis method thereof will be described.
As the coupler (C) or (D) used for forming the residue, those having a coupling position constituting a conventionally known coupling component are used. Specifically, 3-hydroxy-2-naphthoic acid, 6-hydroxy-2-naphthoic acid, 2-hydroxy-3-anthracene carboxylic acid, 2-hydroxy-3-dibenzofuran carboxylic acid, 2-hydroxy-1- A carbazole carboxylic acid or one having a carboxyl group such as 2-hydroxy-11H-benzo [a] -carbazole-3-carboxylic acid may be used. Carboxylic acid group possessed by these couplers have, by reacting with a polyamine such as ants over diamine which will be described later, becomes the coupler residue is carbamide coupled to Ali alkarylene backbone. As described in the above (1) to (3), the coupler (C) or (D) uses a different coupler (C) and (D) from the case where the same coupler (C) is used. There is a case.

Further, in the reaction of coupler (C) and (D) and polyamines shown above, polyamine to form a carbamide group reacts with the carboxyl group of the coupler (hereinafter, collectively referred to as "ant over diamine".) As Include the following. For example, aromatic diamines include phenylenediamine, diaminonaphthalene, benzidine, bis (aminophenyl) ether, methylene-bis (aminophenyl), bis (aminophenyl) sulfide, bis (aminophenyl) sulfonyl, diaminopyridine, and the like. Examples include diamines selected from the group. Further, when the diamine has a substituent, examples of the substituent include an alkyl (carbon number: 1-10) group, an alkoxy (carbon number: 1-10) group, a trifluoromethyl group, a halogen group, a cyano group, and the like. At least one selected from the group consisting of In addition, when there are two or more substituents, diamines introduced with the same or different substituents can also be used.

Examples of the molecular structures of the asymmetric polyazo dyes and their synthesis methods are shown below.
(1) A method for synthesizing an asymmetric polyazo dye represented by the above general formula (II) having the same coupler residue [CpC] and different diazo components from (E) and (F) is, for example, The method which consists of these processes is mentioned.

[1] coupler in (C) (its residues [CpC]) carboxylic acid (hereinafter referred to as "coupler carboxylic acid"), a coupler having a nitro group by reacting nitroaryl over triethanolamine (hereinafter "coupler nitro compound" Called).
_{[CpC] -COX + NH 2 -Ar} -NO 2 → [CpC] -CONH-Ar-NO 2
(In the present invention, “X” represents a halogen residue of an acid halide.)

[2] The nitro group is reduced to convert the “coupler nitro form” to the “coupler amino form”.
[CpC] -CONH-Ar-NO 2 → [CpC] -CONH-Ar-NH 2

[3] Separately, a “monoazo dye carboxylic acid” (hereinafter simply referred to as “dye”) obtained by coupling a diazo component E (part which forms [DzE] after reaction) to a coupler (C) (the residue is [CpC]) A carboxylic acid ”may be prepared).
_{[DzE] -N 2 X + [} CpC] -COOH → [DzE] -N = N- [CpC] -COOH

[4] A “monoazo dye carboxylic acid” is converted to an acid halide derivative and subjected to a condensation reaction with the above “coupler amino compound” to form a coupler having a monoazo dye (“dye coupler”).
[DzE] -N = N- [CpC ] -COX + [CpC] -CONH-Ar-NH 2
→ [DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpC]

[5] The dye coupler is coupled with the diazo component F (the part that forms [DzF] after the reaction).
[DzE] -N = N- [CpC ] -CONH-Ar-NHCO- [CpC] + [DzF] -N 2 X
→ [DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpC] -N = N- [DzF]

Below, an example is given and the outline | summary of the reaction scheme of the said general formula (II) is shown.

(2) Examples of a method for synthesizing an asymmetric polyazo dye represented by the above general formula (III) having different coupler components and the same diazo component include a method comprising the following steps.
[1] A “coupler amino form” of the coupler (C) (residue is [CpC]) is subjected to a condensation reaction of an acid halide derivative of the coupler (D) (residue is [CpD]) carboxylic acid. Asymmetric coupler dimer ”.
[CpC] -CONH-Ar-NH 2 + [CpD] -COX → [CpC] -CONH-Ar-NHCO- [CpD]

[2] The diazo component E (the part that forms DzE after the reaction) is coupled to both coupler residues.
[CpC] -CONH-Ar-NHCO- [CpD] +2 [DzE] -N 2 X
→ [DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpD] -N = N- [DzE]

Below, an example is given and the outline | summary of the reaction scheme of the said general formula (III) is shown.

(3) Examples of methods for synthesizing asymmetric polyazo dyes represented by the above general formula (IV) in which both the coupler component and the diazo component are different include the following methods.
[1] A “monoazo dye carboxylic acid” in which a diazo component (F) (part which forms [DzF] after reaction) is coupled to a coupler (D) (the residue is [CpD]) is prepared.
_{[DzF] -N 2 X + [} CpD] -COOH → [DzF] -N = N- [CpD] -COOH

[2] The “coupler amino form” of the coupler (C) (the residue is [CpC]) is condensed with an acid halide derivative of “monoazo dye carboxylic acid” to form a “dye coupler”.
[DzF] -N = N- [CpD ] -COX + [CpC] -CONH-Ar-NH 2
→ [DzF] -N = N- [CpD] -CONH-Ar-NHCO- [CpC]

[3] The diazo component E (the part that forms DzE after the reaction) is coupled to the “dye coupler”.
[DzF] -N = N- [CpD ] -CONH-Ar-NHCO- [CpC] + [DzE] -N 2 X
→ [DzE] -N = N- [CpC] -CONH-Ar-NHCO- [CpD] -N = N- [DzF]
And the like.

Below, an example is given and the outline | summary of the reaction scheme of the said general formula (IV) is shown.

The nitroaryl over triethanolamine used in the synthesis of a coupler nitro of the "coupler carbonitrile (nitro) ant over Ruamido", for example, 4-nitroaniline, 2-chloro-4-nitroaniline, 2,5-dichloro -4-nitroaniline, 2-methyl-4-nitroaniline, 2-methoxy-4-nitroaniline, 2,5-dimethoxy-4-nitroaniline, 2,5-diethoxy-4-nitroaniline, 2,6- Dimethoxy-4-nitroaniline, 2-cyano-4-nitroaniline, 6-chloro-2-cyano-4-nitroaniline, 4-amino-5-bromo-3-cyano-nitrobenzene, 2-nitro-1-naphthylamine 4-nitro-1-naphthylamine, 2-amino-5-nitrobenzophenone, 4-amino-4′-nitro-diphe Nyl sulfide, 2-amino-5-nitropyridine and the like.

By reducing the nitro group of the "coupler carbonitrile (nitro) ant over Ruamido" above and "coupler carbonitrile (amino) ant over Ruamido", it is subsequently reacted to form the asymmetric polyazo dye. The ants over diamine residues forming Jikaruboamido the polyazo dye, corresponding to the nitroaryl over triethanolamine acids mentioned above, p- phenylenediamine, 2-chloro-1,4-phenylenediamine, 2,5-dichloro - 1,4-phenylenediamine, 2-methyl-1,4-phenylenediamine, 2,5-dimethyl-1,4-phenylenediamine, 2-methoxy-1,4-phenylenediamine, 2,5-dimethoxy-1, 4-phenylenediamine, 2,5-diethoxy-1,4-phenylenediamine, 2-chloro-1,4-phenylenediamine, 2-chloro-5-methyl-1,4-phenylenediamine, 2,6-dichloro- 1,4-phenylenediamine, 2-cyano-1,4-phenylenediamine, 6-chloro-2-cyano-1,4-pheny Diamine, 5-bromo-3-cyano-1,4-phenylenediamine, 1,4-diaminonaphthalene, 1,2-diaminonaphthalene, 2,5-diamino-benzophenone, bis (4-aminophenyl) sulfide, 2, 5-diaminopyridine, 3,4-diaminopyridine and the like.

The diazo component constituting the polyazo dye will be described. As the diazo component E (the part that forms [DzE] after the reaction) and the diazo component F (the part that forms [DzF] after the reaction), conventionally known diazo components are used. The thing which has a structure is mentioned. For example, an aromatic amine or a heterocyclic amine selected from the group consisting of aniline, naphthylamine, aminoanthracene, aminoanthraquinone, aminodibenzofuran, aminocarbazole, and the like. You may have. For example, examples of the nonionic substituent include an alkyl (carbon number: 1-10) group, an alkoxy (carbon number: 1-10) group, a trifluoromethyl group, a halogen group, a nitro group; an alkylsulfonyl group, an aminosulfonyl group. Group, alkylsulfamido group, phenylsulfamido group, alkylaminosulfonyl group, anilinosulfonyl group, aminocarbonyl group, benzamide group, anilinocarbonyl group, etc., anionic substituents include carboxyl group, sulfone group, Sulfate groups, phosphate groups, and the like, and examples of cationic substituents include amino groups, alkylimino groups, hydroxyalkylimino groups, dialkylamino groups, bis (hydroxyalkyl) amino groups, and quaternary alkylammonium groups. Etc. Same or different substituents one to two or more selected introduced the ants over triethanolamine or heterocyclic amine also used, use of the same as shown in the synthesis method of the asymmetric polyazo dye You may use a different one.

  A conventionally known diazo component is used as the hydrophobic diazo component having no ionic group. For example, aniline, toluidine (o-, m- or p-), 2,4-xylidine, 3,4-xylidine, p-cresidine, anisidine (o-, m- or p-), aminophenol (o-, m- or p-), nitroaniline (o-, m- or p-), chloroaniline (o-, m- or p-), 2,5-dichloroaniline, 3,4-dichloroaniline, 3,5 -Dichloroaniline, 2,4,5-trichloroaniline, 2-chloro-4-nitroaniline, 5-chloro-2-nitroaniline, 2,6-dichloro-4-nitroaniline, o-fluoroaniline, 2,4 -Difluoroaniline, m-trifluoromethylaniline, 2-chloro-5-trifluoromethylaniline, 2-aminothiophenol, 2-amino-5-nitrobenzonitrile 2-amino-3-bromo-5-nitrobenzonitrile, diphenylamine, 1-naphthylamine, 2-naphthylamine, 3-amino-9-ethylcarbazole, 2-aminothiazole, 2-amino-5-nitrothiazole, 2- Aminobenzothiazole, 2-amino-6-methoxybenzothiazole, 1-aminoanthraquinone, 2-aminoanthraquinone, o- (phenylsulfonyl) aniline, 2-ethylsulfonyl-5-trifluoromethylaniline, 4-benzylsulfonyl-o -Anisidine, o-anisidine-4-sulfone diethylamide, o-anisidine-4-sulfoneethyl, 6-benzamide-m-4-xylidine, 4,4-dichloro-2-aminodiphenyl ether, 4-benzamide-2,5 -Dimethoxyanili , 9-amino acridine, such as 6-aminoindazole, and the like. In the present invention, an asymmetric polyazo dye obtained by coupling only a hydrophobic diazo component having no ionic group is referred to as an “asymmetric polyazo pigment”.

  Examples of the diazo component having an ionic group include o-aminobenzenesulfonic acid, m-aminobenzenesulfonic acid, sulfanilic acid, 2-chloroaniline-3-sulfonic acid, and 4-chloroaniline-2-sulfonic acid. 4-chloroaniline-3-sulfonic acid, 2,5-dichloroaniline-4-sulfonic acid, 2-nitroaniline-4-sulfonic acid, o-anisidine-5-sulfonic acid, p-anisidine-5-sulfonic acid O-toluidine-4-sulfonic acid, m-toluidine-4-sulfonic acid, p-toluidine-2-sulfonic acid, 2-chloro-p-toluidine-3-sulfonic acid, 2-chloro-p-toluidine-5 -Sulfonic acid, 4-chloro-m-toluidine-2-sulfonic acid, 3-amino-6-chlorotoluene-4-sulfonic acid, 3-amino- -Chloro-4-sulfobenzoic acid, 1-amino-8-naphthalenesulfonic acid, 2-amino-1-naphthalenesulfonic acid, 4-amino-1-naphthalenesulfonic acid, 5-amino-1-naphthalenesulfonic acid, 6 -Amino-1-naphthalenesulfonic acid, 5-amino-3-naphthalenesulfonic acid, 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid, 1-amino-2-hydroxy-4-naphthalenesulfonic acid, 6 -Amino-4-hydroxy-2-naphthalenesulfonic acid, 7-amino-4-hydroxy-2-naphthalenesulfonic acid, 1-amino-2-anthraquinonesulfonic acid, 1-amino-5-anthraquinonesulfonic acid, 1-amino -8-anthraquinone sulfonic acid, aminocarbazole sulfonic acid, 9-aminoacridine sulfonic acid , Anthranilic acid, p- aminobenzoic acid.

Further, when a diazo component having an ionic group is used, the ionic group of the obtained asymmetric polyazo dye is also used in the form of a salt. For example, when the ionic group is a sulfonic acid group, examples of the base serving as a counter ion include alkali metal hydroxides such as lithium, sodium, and potassium; calcium, aluminum, zinc, magnesium, nickel, iron, and the like. Polyhydric metal hydroxides; ammonia; (mono, di or tri) alkyl (C ₁ -C ₂₀ ) amines, alkanol (C ₁ -C ₁₀ ) amines and alkyl (C ₁ -C ₂₀ ) ammonium chloride, etc. Is mentioned. In the present invention, these asymmetric polyazo dyes having an ionic group are referred to as “ionic pigment derivatives”.

The above asymmetric polyazo pigments are used in the same manner as conventionally known pigments, such as dyeing, printing, painting, printing, writing, drawing, resin coloring, ink jet printing, electrophotographic printing, electrostatic printing. Used for printing or color filter pixel forming method.
These colorants are conventionally known in accordance with each application, such as dyeing agents, printing agents, paints, printing inks, stationery, paints, resin coloring agents, ink jet printing inks, electrophotographic printing developers, electrostatic printing. It can be used as a developer or color filter pixel forming ink.

  In addition, the ionic pigment derivative using the diazo component having an ionic group described above is useful not only for the above-described coloring materials but also for the following uses. For example, in the production of pigment crystals, fine particles, etc., or organic solvent dispersions such as paints, printing inks, solvent-type and UV-curable inkjet inks, color filter resist inks and thermosetting acrylic inks When a pigment is used in applications such as a colorant or a colorant for plastics, it is preferable to add a pigment separately used for the purpose of suppressing crystal transition, suppressing crystal growth, improving dispersibility, improving heat resistance, and the like. In particular, an ionic pigment derivative is effective to be added to a pigment crude (coarse pigment) or a coarse particle pigment in the pigmentation process (pigmentation process). Combined use of an ionic pigment derivative brings excellent effects such as improved dispersion performance and improved storage stability. When used as a pigment crystal growth inhibitor or a dispersion stabilizing aid, it is desirable that the ionic pigment derivative is insoluble in the organic solvent medium, and is approximately 1 or less, preferably the pigment derivative. It is good to use what was introduce | transduced by the average number of 0.5-0.1 with respect to the whole pigment component containing. In addition, in organic solvent-based colorants such as paints and gravure inks or resist inks for forming color filter pixels, in addition to pigments, film forming materials, and dilution media, a parent having the above ionic pigment derivative and its counter ionic group. A water-soluble polymer can be used as a dispersant for the pigment.

  The colorant of the present invention preferably contains the asymmetric polyazo dye of the present invention described above as a pigment. Although it depends on the application, it contains an asymmetric polyazo pigment, and if necessary, further contains a known pigment. Further, as a dilution medium, an organic solvent-based, aqueous-based or water-hydrophilic organic solvent mixed solvent A liquid medium comprising a system; a polymerizable liquid medium comprising a polymerizable oligomer, a polymerizable monomer; a resin medium comprising a plasticizer, an oligomer and a synthetic resin; and / or a thermoplastic polymer as a coating film forming material; Contains one or more materials selected from the group consisting of reactive polymers, reactive oligomers, polymerizable monomers and cross-linking agents, and if necessary, polymer system dispersants, low molecular dispersants A colorant prepared by containing a curing catalyst, a polymerization catalyst and the like is preferable.

  Further, when preparing a colorant comprising the asymmetric polyazo pigment described above, a high-concentration pigment processed product in which a pigment to be used is finely dispersed in a dispersion medium is prepared in advance and used. Thus, the production of the colorant can be facilitated. Liquid high-concentration pigment dispersions are called "base colors" or "base inks", and high-concentration dye dispersions for coloring plastics are called "masterbatches" or "master powders" depending on their forms. (Hereinafter, these may be collectively referred to as “base color”). These base colors preferably contain an asymmetric polyazo dye, if necessary, and further include a necessary pigment. Also, as a medium, a known liquid medium, a polymerizable liquid medium, or a resin suitable for the colorant is used. It is preferable to use a medium and, if necessary, further use a polymer dispersant or a low molecular dispersant as a dispersion aid.

  In the present invention, any known resin dispersants conventionally used for colorants can be used as the resin dispersant for dispersing the pigment, and is not particularly limited. As the dispersion medium, an appropriate solvent or an aqueous medium is used. In addition, the colorant of the present invention can be appropriately used by adding conventionally known additives such as a dispersion aid, a smoothing agent, and an adhesion agent as necessary.

  As a resin binder as a coating film forming material (sometimes referred to as “vehicle” or “varnish” depending on the application), a room temperature drying type or baking type resin binder and a photosensitive resin binder are used. Examples of the room temperature drying type or baking type resin binder include resin binders used for image recording materials such as printing agents, paints or printing inks, stationery, ink jet printing, electrophotographic printing, and electrostatic printing. On the other hand, examples of the photosensitive resin binder include photosensitive resin binders used for various ultraviolet curable or electron beam curable paints, coating agents, printing inks, inkjet inks, and the like.

  Specific examples of room temperature drying type or baking type resin binders include, for example, synthetic rubber resins, acrylic resins, styrene (co) polymers, vinyl resins such as polyvinyl butyral resins, polyester resins, and amino resin modified polyester resins. Resin, polyurethane resin, acrylic polyol-retane resin, soluble polyamide resin, soluble polyimide resin, soluble polyamideimide resin, soluble polyesterimide resin, alkyd resin, aminoalkyd resin, epoxy resin, chlorinated rubber resin, Silicone resin, fluororesin, cellulose acetate resin, nitrocellulose resin, hydroxyethyl cellulose, water-soluble salt of styrene-maleic acid ester copolymer, water-soluble salt of (meth) acrylic acid ester (co) polymer, Water-soluble Noarukiddo resins, and the like water-soluble amino polyester resin and a water-soluble polyamide resins, which are used in combination or alone or in combination.

  The film-forming material may or may not have a reactive group. Examples of the reactive group include a methylol group, an alkylmethylol group, an isocyanate group, a masked isocyanate group, and an epoxy group. Depending on the application, oligomers and monomers may be used, and cross-linking agents such as methylol melamine-based, isocyanate-based, and epoxy-based cross-linking agents may be used in combination.

  Specific examples of energy ray curable coating film forming materials such as ultraviolet curable resin systems and electron beam curable resin systems include, for example, photosensitive cyclized rubber resins, photosensitive phenolic resins, and photosensitive polyacrylate resins. , Photosensitive polyamide resins, photosensitive polyimide resins, and binders such as unsaturated polyester resins, polyester acrylate resins, polyepoxy acrylate resins, polyurethane acrylate resins, polyether acrylate resins, polyol acrylate resins Or a binder in which a monomer is further added as a reactive diluent.

  When the colorant of the present invention is used for color filter pixel formation, a colorant appropriate for the formation method is used, and a known photoresist method, printing method, transfer method, and the like on the color filter substrate. Pixels are formed by the pasting method. In a coloring composition for image display such as a color filter for a liquid crystal display and an advertising display, examples of the coloring object of the composition include a glass substrate and a plastic plate substrate.

  The asymmetric polyazo dye of the present invention is also used as a colorant for plastics. Examples of the plastic to be colored include conventionally known thermoplastic plastics and thermosetting plastics. As thermoplastics, polyethylene, ethylene copolymers, polyolefins such as polypropylene, polystyrene, ABS, AS, styrene copolymers, vinyl chloride resins, methacrylic resins, polycarbonates, polyamides, polyacetals, thermoplastic polyesters, cellulosic plastics, phenylene oxide resins , Fluororesins, thermoplastic elastomers and the like. Examples of the thermosetting plastic include unsaturated polyester resin, epoxy resin, silicon resin, polyurethane resin, melamine resin, phenol resin and the like. Also in this plastic colorant, as described above, a high-concentration pigment fine dispersion in which the asymmetric polyazo dye to be used and the pigment to be used in combination are finely dispersed in a dispersion medium in which the pigment is used at a high concentration in advance as a “master batch”. Can be prepared and used to facilitate the production of colorants.

Next, the present invention will be described in more detail with specific production examples and examples. In the text, “parts” and “%” are based on mass unless otherwise specified.
[Synthesis Example 1: Synthesis of “coupler amino compound”]
(A) Synthesis of “Coupler Nitro Compound” According to a conventional method, 188.1 parts (1.0 mol) of 3-hydroxy-2-naphthoic acid (hereinafter abbreviated as “BONA”) was added with 138. 4-nitroaniline. 1 part (1.0 mol) was suspended in toluene, phosphorus trichloride was added dropwise, and the mixture was boiled in reverse flow. Then, it poured into water, made alkaline with sodium carbonate, and toluene was steam distilled. Thereafter, it was filtered off, washed with water and dried. The obtained product was added to methanol, neutralized with sodium hydroxide and dissolved, the insoluble matter was filtered off, and acetic acid was added to cause precipitation. The precipitate was filtered, washed with methanol, washed with water, and dried to obtain 283.6 parts of 3-hydroxy-4′-nitro-2-naphthanilide. The yield was 92%. Hereinafter, the obtained coupler having a nitro group is referred to as “coupler nitro body-1”.

Similarly, the carboxylic acid of coupler according to column 1 of Table 1 (hereinafter, referred to as "coupler carboxylic acid") and 2 by condensation of nitroaryl over triethanolamine listed in the column "coupler nitro described in column 3 "Body" was obtained respectively.

(B) Synthesis of “coupler amino compound” In 4,000 ml of methanol, 308.2 parts (1.0 mol) of “coupler nitro compound-1” obtained in (a) above was charged, and sodium hydroxide was added. After dissolution, concentrated hydrochloric acid was added dropwise to precipitate and finely dispersed. According to a conventional method for reducing iron powder, 344 parts of reduced iron was added, concentrated hydrochloric acid was added dropwise, and the mixture was stirred and refluxed for 10 hours for reduction. After cooling to room temperature, concentrated hydrochloric acid was further added dropwise and stirred for 30 minutes. The product was filtered and washed with methanol to obtain an amino hydrochloride hydrochloride paste. Next, add 8,500 ml of methanol to the container, add the amino acid hydrochloride paste obtained above while stirring, dissolve with sodium hydroxide, add concentrated hydrochloric acid, acidify, filter did. Disperse the amino acid hydrochloride paste in the liquid of the container, neutralize with 28% aqueous ammonia to adjust the pH to 9.0 to 9.5, and then add 3-hydroxy-4′-amino-2-naphthoani 256.0 parts of ride were obtained. The yield was 92%. Hereinafter, the obtained coupler having an amino group is referred to as “coupler amino body-1”.
Similarly, the “coupler nitro compound” described in the first column of Table 2 obtained in the above (a) was reduced to obtain the “coupler amino compound” described in the second column.

[Synthesis Example 2: Synthesis of “Dye Carboxylic Acid”]
(A) Diazotization of 2,5-dichloroaniline According to a conventional method, 32.41 parts (0.20 mol) of 2,5-dichloroaniline and 260 ml of water were added to a diazotization reactor, and 74.7% concentrated hydrochloric acid was added. Part was an acidic suspension. Under cooling, 15.2 parts (0.22 mol) of sodium nitrite was added to proceed the diazotization reaction. After confirming the completion of the diazotization reaction, excess sodium nitrite was decomposed, and insoluble matter was filtered to prepare a diazo solution of 2,5-dichloroaniline.

(B) Synthesis of “Dye Carboxylic Acid” According to a conventional method, 2,000 ml of water was charged into a coupling reactor, and 37.62 parts (0.20 mol) of BONA was added. Cool to 5 ° C. or less, gradually add the diazo solution of 2,5-dichloroaniline obtained in (a) above, and adjust the pH to 7.0-7.5 with 10% aqueous sodium hydroxide solution. The coupling reaction proceeded. The completion of the coupling reaction was confirmed, filtered, washed with water, and dried to obtain 68.6 parts of carboxylic acid as an azo dye. The yield was 95%. Hereinafter, the carboxylic acid (4-((2,5-dichlorophenyl) -azo) -3-hydroxy-2-naphthoic acid) of the obtained azo dye is referred to as “chromic acid-1”.
Similarly, the “coupler carboxylic acid” described in the first column of Table 3 and the diazo component described in the second column were coupled to obtain “dye carboxylic acid” described in the third column.

[Synthesis Example 3: Synthesis of “Dye Coupler”]
In the same manner as in Synthesis Example 1 (a), 2,000 ml of chlorobenzene was charged into the reactor, and then 72.23 parts (0.20 mol) of “chromic acid-1” obtained in Synthesis Example 2 (b) and 55.65 parts (0.20 mol) of “coupler amino body-1” obtained in Synthesis Example 1 (b) was charged, and phosphorus trichloride was added dropwise. Thereafter, the temperature was raised to 110 ° C., and the mixture was stirred for 8 hours to cause a condensation reaction. Cool to room temperature, filter, and wash with chlorobenzene and methanol. Subsequently, the obtained reaction product was added to 4,000 ml of methanol, and further sodium hydroxide was added to dissolve it, and the insoluble matter was separated by filtration. Thereafter, an acid was added for precipitation, followed by filtration, washing with methanol and water, and then drying to obtain 94.5 parts of a coupler having an azo dye bonded thereto. The yield was 76%. Hereinafter, the obtained azo dye-coupled coupler is referred to as “dye coupler-1”.
Similarly, the “dye carboxylic acid” described in the first column of Table 4 was condensed with the “coupler amino compound” described in the second column to obtain the “dye coupler” described in the third column.

[Synthesis Example 4: Synthesis of “Asymmetric Coupler Dimer”]
In the same manner as in Synthesis Example 3, 2,000 ml of chlorobenzene was charged into the reactor, and then 55.46 parts (0.2 mol) of 2-hydroxy-11H-benzo [a] carbazole-3-carboxylic acid (HBCA) and 55.65 parts (0.20 mol) of the “coupler amino compound-1” obtained in Synthesis Example 1 (b) was charged, phosphorus trichloride was added dropwise, the temperature was raised to 110 ° C., and the mixture was stirred for 8 hours and condensed. Reacted. Cool to room temperature, filter, and wash with chlorobenzene and methanol. Furthermore, it melt | dissolved in alkali methanol, an acid was added and precipitated, it wash | cleaned with methanol and water, and it dried, and obtained 96.8 parts of dimers which connected the different coupler. The yield was 90%. Hereinafter, the obtained heterogeneous coupler dimer is referred to as “asymmetric coupler dimer-1”.

Synthesis Example 5 Synthesis of “Asymmetric Polyazo Dye”
(A) Diazotization of 2-chloroaniline A diazotization reaction of 12.76 parts (0.10 mol) of 2-chloroaniline was advanced in a diazotization reaction apparatus according to a conventional method. After confirming the completion of the diazotization reaction, excess sodium nitrite was decomposed with sulfamic acid and filtered to prepare a diazo liquid of 2-chloroaniline.

(B) Synthesis of “Asymmetric Polyazo Dye” In a coupling reactor, 1,400 ml of nitrobenzene and 62.14 parts (0.10 mol) of “Dye Coupler-1” obtained in Synthesis Example 2 were charged to 5 ° C. or less. After cooling, the diazo solution of 2-chloroaniline obtained in (a) above was gradually added to proceed the coupling reaction. After confirming the completion of the coupling reaction, filtration, washing with water and drying were performed to obtain 72.2 parts of a disazo pigment having a different diazo component. The yield was 95% and the color tone was red. Hereinafter, the obtained disazo pigment is referred to as “asymmetric polyazo pigment-1”.
Similarly, the “dye coupler” described in the first column of Table 5 and the diazo component described in the second column were diazotized and subjected to a coupling reaction to obtain the “asymmetric polyazo pigment” described in the third column.

Synthesis Example 6 Synthesis of “Asymmetric Dye Derivative”
(A) Diazotization of sulfanilic acid A diazotization reaction of 17.32 parts (0.10 mol) of sulfanilic acid was advanced in a diazotization reaction apparatus according to a conventional method. After confirming the completion of the diazotization reaction, excess sodium nitrite was decomposed with sulfamic acid and filtered to prepare a diazo solution of sulfanilic acid.

(B) Synthesis of “Asymmetric Dye Derivative” According to a conventional method, 4,600 ml of methanol and 66.7 parts (0.10 mol) of “Dye Coupler-6” were charged into a coupling reactor, and cooled to 5 to 10 ° C. The diazo solution of sulfanilic acid obtained in (a) above was gradually added to proceed the coupling reaction. After confirming the completion of the coupling reaction, it was acidified with dilute hydrochloric acid, filtered, washed with water, and dried to obtain 81.9 parts of an asymmetric disazo dye derivative having a sulfo group in one azo dye residue. The yield was 96% and the color tone was red. Hereinafter, the obtained asymmetric disazo dye derivative having a sulfone group on one side is referred to as “asymmetric pigment derivative-1”.
Similarly, the “dye coupler” described in the first column of Table 6 and the diazo component described in the second column were coupled to obtain an “asymmetric dye derivative” described in the third column.

The chemical names of the “asymmetric polyazo dyes” obtained in the above examples are shown below.
(1) Asymmetric polyazo pigment-1
N, N ′-(1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2,5-dichlorophenyl) azo) -3 '-Hydroxy-2'-naphthalenecarboxamide)
(2) Asymmetric polyazo pigment-2
N, N ′-(1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2-chloro-5-trifluoromethylphenyl) ) Azo) -3'-hydroxy-2'-naphthalenecarboxamide)

(3) Asymmetric polyazo pigment-3
N, N ′-(2-chloro-1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2,5-dichlorophenyl) Azo) -3'-hydroxy-2'-naphthalenecarboxamide)
(4) Asymmetric polyazo pigment-4
N, N ′-(2,5-dichloro-1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2,5- Dichlorophenyl) azo) -3'-hydroxy-2'-naphthalenecarboxamide)

(5) Asymmetric polyazo pigment-5
N, N ′-(2-methyl-1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2,5-dichlorophenyl) Azo) -3'-hydroxy-2'-naphthalenecarboxamide)
(6) Asymmetric polyazo pigment-6
N, N ′-(2-methyl-1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2-chloro-5- Trifluoromethylphenyl) azo) -3'-hydroxy-2'-naphthalenecarboxamide)

(7) Asymmetric polyazo pigment-7
N, N ′-(1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -1 ′-((4-nitrophenyl) azo) -2 ′ -Hydroxy-11'H-benzo [a] carbazole-3'-carboxamide (8) Asymmetric polyazo pigment-8
N, N ′-(1,4-phenylene) -4-((2-chlorophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -1 ′-((2-chlorophenyl) azo) -2′- Hydroxy-11′H-benzo [a] carbazole-3′-carboxamide)

(9) Asymmetric dye derivative-1
N, N ′-(2-methyl-1,4-phenylene) -4-((4-sulfophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2-chloro- 5-trifluoromethylphenyl) azo) -3'-hydroxy-2'-naphthalenecarboxamide)
(10) Asymmetric dye derivative-2
N, N ′-(1,4-phenylene) -4-((4-sulfophenyl) azo) -3-hydroxy-2-naphthalenecarboxamide) -4 ′-((2,5-dichlorophenyl) azo) -3′-hydroxy-2′-naphthalenecarboxamide)

[Example 1: Baking paint for metal products]
Ethyl acetate solution of a reactive acrylic styrene resin comprising a methacrylic acid alkyl ester-styrene copolymer having 5 parts of “asymmetric polyazo pigment-1” obtained in Synthesis Example 5 (solid content: 50%) Forty-five parts were added with glass beads according to a conventional method and dispersed using a paint shaker. Next, 5 parts of a methoxymethylmelamine cross-linking agent (solid content: 50%), 0.1 part of a color separation inhibitor and 44.9 parts of xylene were added and further dispersed to prepare a red acrylic styrene paint for metal products. . The resulting paint was spray-coated on a metal product and baked to give a beautiful red coating on the metal product. In combination with aluminum powder, it was beautiful as an acrylic baked paint for metal products, and a red coating with excellent weather resistance was achieved.

[Example 2: Textile printing paste]
An aqueous pigment dispersion was obtained using 25 parts of the “asymmetric polyazo pigment-2” obtained in Synthesis Example 5, 10 parts of a nonionic pigment dispersant, 1 part of an antifoaming agent, and 64 parts of water. Then, 25 parts of reactive alkyl acrylate ester latex (solid content 40%), 0.5 part of antifoaming agent, 1 part of dispersant, 3 parts of dispersion stabilizer for oil-in-water emulsion, 38 parts of mineral terpene, water 12 In 5 parts, 20 parts of the aqueous pigment dispersion obtained above was used to obtain a pasty red paste in which an azo pigment was dispersed. The resulting red paste was combined with 1% of an epoxy-based crosslinking agent to prepare a red printing paste. This red printing paste was printed on a polyester-cotton blended cloth with a silk screen and cured at 120 ° C. for 15 minutes to obtain a red printed matter.

[Example 3: Polyurethane coating agent]
100 parts of milky white methyl ethyl ketone dispersion (solid content: 30%) of polyether polyol diphenylmethane diisocyanate polyurethane having carboxyl group, 5 parts of methyl ethyl ketone solution (solid content: 50%) of polyether polyol diphenylmethane diisocyanate polyurethane and polycarbodiimide 2.5 parts of a crosslinking agent (solid content: 20%) was sufficiently mixed. To this, 1 part of an asymmetric polyazo pigment paste obtained by kneading 0.5 part of the “asymmetric polyazo pigment-3” obtained in Synthesis Example 5 and 1.0 part of an adipate ester plasticizer was added and mixed well. A red polyurethane coating solution was prepared. It was applied to the surface of the polyester woven fabric at about 200 g / m ² and dried to obtain a red fiber processed product.

[Example 4: Aqueous gravure ink]
15 parts of “asymmetric polyazo pigment-4” obtained in Synthesis Example 5, 60 parts of polyurethane aqueous resin (solid content: 30%) containing carboxyl group obtained from polycarbonate polyol and aliphatic isocyanate, water dispersible wax ( 5 parts of solid content (30%), 1 part of antifoaming agent, 5 parts of polycarbodiimide crosslinking agent (solid content: 50%) and 14 parts of water were blended to prepare a red aqueous gravure ink.

  Similarly, PB15: 3 (phthalocyanine blue pigment), PY74 (monoazo yellow pigment), and PBK7 (carbon black pigment) were used to prepare blue, yellow, and black aqueous gravure inks, respectively. Using the obtained four-color printing ink, printing was performed on a transparent colorless plastic film such as polyethylene, polypropylene, polyester, and nylon. A beautiful printed film was obtained.

[Example 5: Resin molding]
5 parts of “asymmetric polyazo pigment-5” obtained in Synthesis Example 5, 20 parts of titanium oxide white pigment, and 75 parts of polyethylene resin powder as a pigment dispersant are mixed with a Henschel mixer (high-speed powder mixer), and powdered An agent (dry color) was obtained. Next, 1.0 part of the obtained powder colorant was blended with 100 parts of polybutylene terephthalate (PBT) resin pellets, mixed with a Henschel mixer, and red resin pellets were obtained with an extruder. The obtained red pellet was molded with an in-line screw injection molding machine to obtain a red PBT resin molded plate excellent in pigment dispersibility.

[Example 6: Transparent resin molded plate]
2 parts of acrylic resin (polymethylmethacrylate) red masterbatch containing 20% of “asymmetric polyazo pigment-6” obtained in Synthesis Example 5 is blended with 100 parts of acrylic resin pellets, mixed with a Henschel mixer, and then extruded. Red resin pellets were obtained. The obtained red pellet was molded with an in-line screw injection molding machine to obtain a red transparent acrylic resin molded plate excellent in pigment dispersibility.
In the same manner, instead of the acrylic resin, the polycarbonate resin pellets were colored with a polycarbonate resin red master batch pellet and molded to obtain a red transparent polycarbonate molded plate excellent in pigment dispersibility.

[Example 7: Stock solution colored spinning]
50 parts of “asymmetric polyazo pigment-7” obtained in Synthesis Example 5 and 50 parts of ethylenebisstearic acid amide powder as a pigment dispersant were mixed with a Henschel mixer to obtain a dry color having a pigment content of 50%. Next, 1.0 part of the obtained dry color was blended with 99.0 parts of polypropylene resin pellets, mixed with a Henschel mixer, and kneaded with a vent type 40 m / m extruder to obtain 0.5% red resin pellets. The obtained red resin pellets were spun by a melt spinning machine to obtain a clear red polypropylene undiluted colored yarn having a fineness of 10 denier and excellent pigment dispersibility.

[Example 8: Digital electronic printing]
(1) (Preparation of high pigment content resin composition)
30 parts of “asymmetric polyazo pigment-4” obtained in Synthesis Example 5 as a red pigment and 70 parts of bisphenol A-bis (propylene glycol ether) and terephthalic acid polyester resin (average molecular weight: about 15,000) and two rolls A polyester master batch of red pigment was prepared by kneading. A black pigment polyester masterbatch was prepared in the same manner as described above except that the “asymmetric polyazo pigment-8” obtained in Synthesis Example 5 was used as the black pigment. Furthermore, a blue and yellow polyester masterbatch was obtained in the same manner as above except that PB15: 3 was used as the blue pigment and PY74 was used as the yellow pigment.

(2) Preparation of colored composition for image recording and printing of full-color electrophotography Next, according to the composition (part) of Table 7 below, the polyester masterbatch of each color obtained above, the above polyester resin, and the chromium complex salt negative charge The control agent was kneaded according to a conventional method, cooled and coarsely crushed, then finely pulverized with a jet mill, and a fine powder of a coloring composition for image recording having a size of 5 to 7 μm was obtained with a classifier. Colloidal silica as a fluidizing agent was added and mixed with magnetic iron powder as a carrier to obtain a cyan, magenta, yellow and black electrophotographic dry developer. Printing was performed with an electrophotographic full-color laser printer to obtain a clear full-color electrophotographic printed matter.

[Example 9: Formation of color filter pixels]
(1) (Preparation of pigment dispersion for color filter)
(Preparation of red pigment dispersion)
20 parts of “asymmetric polyazo pigment-2” and 2 parts of “asymmetric dye derivative-1”, benzyl methacrylate-methacrylic acid- (2-hydroxyethyl) methacrylate copolymer (molar ratio: 60:20:20, weight average) 15 parts of molecular weight (30,000) (hereinafter referred to as “BzMA-MAc-HEMA copolymer”), 4 parts of a cationic polymer dispersant and 59 parts of PGMA are dispersed with a continuous horizontal medium disperser, and a red pigment dispersion is obtained. Got. (Hereinafter referred to as “red pigment dispersion-1”.)
As in (1) above, PR254 (diketopyrrolopyrrole red pigment) is used in place of the asymmetric polyazo pigment-2, and “asymmetric dye derivative-2” is used in place of “asymmetric dye derivative-1”. To obtain a red pigment dispersion. (Hereinafter referred to as “red pigment dispersion-2”.)

(Preparation of green, blue, yellow and purple pigment dispersions)
In the same manner as in the above (1), in place of the asymmetric polyazo pigment-2, PG36 (copper phthalocyanine green pigment), PB15: 6 (ε-type copper phthalocyanine blue pigment), PY150 (nickel complex yellow pigment) and PV23 (dioxazine) Using a pigment composition in which a pigment derivative having a known sulfone group was added to each of the violet pigments, pigment dispersions each having a pigment content of 20% were obtained in the same manner as in (1) above. Hereinafter, these are referred to as “green pigment dispersion-1”, “blue pigment dispersion-1”, “yellow pigment dispersion-1”, and “purple pigment dispersion-1”.

(2) (Preparation of photosensitive resist ink for each pigment)
In order to form red (R), green (G), and blue (B) pixels on the glass substrate of the color filter, two red pigment dispersions prepared in the above (1) and green, blue, yellow, purple Using the pigment dispersion, photosensitive red resist ink, photosensitive green resist ink, and photosensitive blue resist ink were obtained according to the composition (parts) shown in Table 8 below.

(3) (Formation of RGB pixels for color filter)
The glass substrate was set on a spin coater, and the above-described photosensitive red resist ink was first spin-coated at 300 rpm for 5 seconds and then at 1,200 rpm for 5 seconds. Next, prebaking was performed at 80 ° C. for 10 minutes, and a photomask having a mosaic pattern was exposed on the coated surface of the glass substrate with an ultrahigh pressure mercury lamp at a light amount of 100 mJ / cm ² using a proximity exposure machine. Next, development and washing were performed with a dedicated developer and a dedicated rinse to form a red mosaic pattern on the glass substrate.

Subsequently, a green mosaic pattern and a blue mosaic pattern were formed by applying and baking according to the above method using the photosensitive green resist ink and the photosensitive blue resist ink shown in Table 8, and RGB color filters Got.
The obtained color filter has excellent spectral curve characteristics, excellent fastness such as light resistance and heat resistance, and excellent light transmission properties, and is excellent as a color filter for liquid crystal color displays. Showed the nature.

  According to the present invention described above, a novel dye is provided which is an asymmetric polyazo dye in which different monoazo dye components are bonded in one molecule. In conventional pigments, improvements in pigment properties such as hue adjustment, crystallinity, and stability of micronization, which have been achieved in the form of toning, coprecipitation, or mixed crystals of a plurality of different pigments, can be achieved with the same molecule of the present invention. A new pigment system that provides pigment properties such as a new hue, a new crystallinity, and a particle property using a dye having a different coloring molecular structure is expected.

  Also, treating a pigment with an asymmetric azo dye (pigment derivative) in which an ionic group is introduced into one monoazo component is effective as a pigment modifier for controlling the crystal transition and crystal growth of the pigment, Further, it is preferable as a performance improver such as an improvement in dispersibility of a pigment of an organic solvent-based pigment dispersion color, a decrease in viscosity of the dispersion, a dispersion stability, and a long-term storage stability.

Claims (7)

An asymmetric polyazo dye in which different monoazo dye residues (A) and monoazo dye residues (B) are linked by an arylene poly (carboxamide) group, each monoazo dye residue comprising a coupler residue and a diazo component it was coupled to a process for the preparation of the following (1) to asymmetric polyazo dye molecular structure selected from the group consisting of (3) One of the non-symmetric polyazo dyes,
(1) Each of the coupler residue monoazo dye residue (A) and in a monoazo dye residue (B) is the residue of identical couplers (C), and, as diazo components, different diazo component (E ) and each of the coupler residues in the diazo component (F) coupling the polyazo dye molecular structure (2) a monoazo dye residue (a) and a monoazo dye residue (B), different coupler (C) and coupler ( D) and a polyazo dye molecular structure coupled with the same diazo component (E) as the diazo component (3) each of the monoazo dye residue (A) and the monoazo dye residue (B) coupler residue, a residue of different coupler (C) and coupler (D), and, as diazo components, different diazo component (E) and the diazo component (F) cup Packaging the polyazo dye molecule structure
(I) The asymmetric polyazo dye having the above structure (1) is a “coupler nitro compound” which is a coupler having a nitro group by reacting a carboxy group of the coupler (C) with a nitroarylamine. [2] Reduction of the nitro group into a “coupler amino form”, [3] “Monoazo dye carboxylic acid or acid obtained by coupling the diazo component (E) to the coupler (C) separately prepared The “halide derivative” is condensed with the “coupler amino compound” obtained in [2] above to obtain a “dye coupler” which is a coupler having a monoazo dye, and [4] the diazo component (F) is cupped on the dye coupler. It is characterized by ring,
(II) The asymmetric polyazo dye having the structure of (2) above is a “coupler nitro compound” which is a coupler having a nitro group by reacting a carboxy group of the coupler (C) with a nitroarylamine. [2] The nitro group is reduced to a “coupler amino form”, and [3] a carboxy group or acid halide derivative of the coupler (D) prepared separately is condensed to form an “asymmetric coupler dimer”. [4] The diazo component (E) is coupled to both coupler residues of the dimer,
(III) The asymmetric polyazo dye having the structure of (3) above is a “coupler nitro body” which is a coupler having a nitro group by reacting a carboxy group of [1] coupler (C) with a nitroarylamine. [2] Reduction of the nitro group into a “coupler amino form”, [3] “monoazo dye carboxylic acid or acid obtained by coupling the diazo component (F) to the coupler (D) separately prepared The “halide derivative” is condensed with the “coupler amino compound” obtained in [2] above to obtain a “dye coupler” which is a coupler having a monoazo dye, and [4] the diazo component (E) is cupped on the dye coupler. A method for producing an asymmetric polyazo dye, characterized by comprising ringing. The coupler used for forming the coupler (C) or the residue of the coupler (D) has a carboxyl group, and the coupler is 3-hydroxy-2-naphthoic acid or 6-hydroxy-2-naphthoic acid. 2-hydroxy-3-anthracenecarboxylic acid, 2-hydroxy-3-dibenzofurancarboxylic acid, 2-hydroxy-1-carbazolecarboxylic acid and 2-hydroxy-11H-benzo [a] -carbazole-3-carboxylic acid The method for producing an asymmetric polyazo dye according to claim 1, wherein the couplers are the same or different couplers selected from the group consisting of : The arylene poly (carboxamide) group may or may not have a substituent, phenylenediamine, diaminonaphthalene, diaminobiphenyl, bis (aminophenyl) ether, methylene-bis (aminophenyl), bis (aminophenyl) sulfide, bis ( The method for producing an asymmetric polyazo dye according to claim 1, wherein the residue is an arylenediamine residue selected from the group consisting of (aminophenyl) sulfonyl and diaminopyridine. The arylene diamine has 1 to 2 or more substituents, and the substituents are alkyl (carbon number: 1-10) group, alkoxy (carbon number: 1-10) group, trifluoromethyl group, halogen. Group: alkyloxycarbonyl group, alkylsulfonyl group, aminosulfonyl group, alkylsulfamide group, phenylsulfamide group, alkylaminosulfonyl group, anilinosulfonyl group, aminocarbonyl group, benzamide group, alkylaminocarbonyl group, anilinocarbonyl Group: carboxyl group, sulfone group, sulfate ester group, phosphate ester group; from the group consisting of amino group, alkylimino group, hydroxyalkylimino group, dialkylamino group, bis (hydroxyalkyl) amino group and quaternary alkylammonium group Any group chosen, or The method of asymmetric polyazo dye according to claim 3 which is the same or different two or more groups selected from said group. 2. The asymmetric polyazo compound according to claim 1, wherein the diazo component (E) or the diazo component (F) has an arylamine-derived molecular skeleton or a heterocyclic amine-derived molecular skeleton, which has or does not have a substituent. A method for producing a pigment. The arylamine or heterocyclic amine is any one selected from the group consisting of aniline, naphthylamine, aminoanthracene, aminoanthraquinone, aminodibenzofuran and aminocarbazole, which has or does not have a substituent, and has the above substituent. In this case, the substituent is an alkyl (carbon number: 1-10) group, alkoxy (carbon number: 1-10) group, trifluoromethyl group, halogen group, nitro group; alkyloxycarbonyl group, alkylsulfonyl group, aminosulfonyl Group, alkylsulfamide group, phenylsulfamide group, alkylaminosulfonyl group, anilinosulfonyl group, aminocarbonyl group, benzamide group, alkylaminocarbonyl group, anilinocarbonyl group; carboxyl group, sulfone group, sulfuric acid ester A group selected from the group consisting of an amino group, an alkylimino group, a hydroxyalkylimino group, a dialkylamino group, a bis (hydroxyalkyl) amino group and a quaternary alkylammonium group; 6. The method for producing an asymmetric polyazo dye according to claim 5, wherein the two or more groups are the same or different groups selected from the group. As a coloring material, a monoazo dye residue (A) and a monoazo dye residue (B), which are different from each other, are asymmetric polyazo dyes connected by an arylene poly (carboxamide) group, and each monoazo dye residue is a coupler residue A colorant comprising an asymmetric polyazo dye having an asymmetric polyazo dye molecular structure selected from the group consisting of the following (1) to (3) :
Before SL dye, under Symbol consisting ionic pigment derivative diazo component (F) is coupled with a hydrophobic diazo component (E) and an anionic or cationic ionic group (1) or (3) An asymmetric polyazo dye having a molecular structure, and a diazo component having a cationic or anionic group that becomes counterionic with the ionicity of the diazo component (F) as a dispersion aid. It comprises an asymmetric polyazo dye having an asymmetric polyazo dye molecular structure selected from the group consisting of the following ionic pigment derivatives (1) to (3), and an organic solvent as a dilution medium: Coloring agent.
(1) Each coupler residue in the monoazo dye residue (A) and the monoazo dye residue (B) is a residue of the same coupler (C), and different diazo components (E) as diazo components Molecular structure of polyazo dyes coupled with diazo component (F)
(2) The coupler residues in the monoazo dye residue (A) and the monoazo dye residue (B) are different coupler (C) and coupler (D) residues, and the same as the diazo component Polyazo dye molecular structure coupled with diazo component (E)
(3) The respective coupler residues in the monoazo dye residue (A) and the monoazo dye residue (B) are different coupler (C) and coupler (D) residues, and different diazo components are used as diazo components. Polyazo dye molecular structure coupling component (E) and diazo component (F)