WO2019082967A1 - 顔料分散剤、顔料組成物、及び顔料着色剤 - Google Patents
顔料分散剤、顔料組成物、及び顔料着色剤Info
- Publication number
- WO2019082967A1 WO2019082967A1 PCT/JP2018/039662 JP2018039662W WO2019082967A1 WO 2019082967 A1 WO2019082967 A1 WO 2019082967A1 JP 2018039662 W JP2018039662 W JP 2018039662W WO 2019082967 A1 WO2019082967 A1 WO 2019082967A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pigment
- black
- parts
- group
- pigment dispersant
- Prior art date
Links
- 0 **(C=CC=C1)C=C1NC(c1cc(ccc2c3[n]c4c2cccc4)c3c(N=N*)c1O)=O Chemical compound **(C=CC=C1)C=C1NC(c1cc(ccc2c3[n]c4c2cccc4)c3c(N=N*)c1O)=O 0.000 description 2
- GSUBYAXHHQJDLJ-QOLNFUTBSA-N CC(C(C=C1)/N=N\c(c2c3[nH]c(cccc4)c4c3ccc2cc2C(Nc(cc3)ccc3OC)=O)c2O)C=C1Nc1nc(NCCCN(C)C)nc(NCCCN(C)C)n1 Chemical compound CC(C(C=C1)/N=N\c(c2c3[nH]c(cccc4)c4c3ccc2cc2C(Nc(cc3)ccc3OC)=O)c2O)C=C1Nc1nc(NCCCN(C)C)nc(NCCCN(C)C)n1 GSUBYAXHHQJDLJ-QOLNFUTBSA-N 0.000 description 1
- IROLBZASHFGRJF-OKULSNQLSA-N Cc(cc(cc1)OC)c1NC(c1cc2ccc(c(cccc3)c3[nH]3)c3c2c(/N=N\c(c2c3cccc2)ccc3S(O)(=O)=O)c1O)=O Chemical compound Cc(cc(cc1)OC)c1NC(c1cc2ccc(c(cccc3)c3[nH]3)c3c2c(/N=N\c(c2c3cccc2)ccc3S(O)(=O)=O)c1O)=O IROLBZASHFGRJF-OKULSNQLSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/006—Preparation of organic pigments
- C09B67/0066—Aqueous dispersions of pigments containing only dispersing agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0003—Monoazo dyes prepared by diazotising and coupling from diazotized anilines
- C09B29/0011—Monoazo dyes prepared by diazotising and coupling from diazotized anilines from diazotized anilines directly substituted by a heterocyclic ring (not condensed)
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3608—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered heterocyclic ring with only one nitrogen as heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0046—Mixtures of two or more azo dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/6426—Heterocyclic compounds
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
Definitions
- the present invention relates to pigment dispersants, pigment compositions, and pigment colorants. More specifically, printing ink (offset ink, gravure ink, etc.), various paints, plastics, pigment printing agents, dry toner for electrophotography, liquid toner for electrophotography, ink for inkjet recording, ink for thermal transfer recording, resist for color filter And a pigment dispersant blended in an ink for writing instruments and the like.
- printing ink offset ink, gravure ink, etc.
- various paints, plastics, pigment printing agents dry toner for electrophotography, liquid toner for electrophotography, ink for inkjet recording, ink for thermal transfer recording, resist for color filter And a pigment dispersant blended in an ink for writing instruments and the like.
- pigment particles in a stable state in a vehicle such as paint, gravure ink, or offset ink.
- a vehicle such as paint, gravure ink, or offset ink.
- fine pigment particles once dispersed in a vehicle, tend to aggregate in the vehicle.
- the viscosity of the vehicle increases.
- various problems such as decrease in coloring power of ink and paint and decrease in gloss of a coating film tend to occur.
- pigments it is particularly difficult to mix and disperse a black pigment in a stable state.
- black pigments used for coloring agents for paints, printing inks, plastics, etc.
- carbon black pigments, iron oxide pigments and the like are generally used. These black pigments exhibit a black color by absorbing all light rays including the visible light region of sunlight.
- Sunlight is an electromagnetic wave, and light in a wavelength range of approximately 380 nm to 780 nm is visible light. For this reason, even if it absorbs all visible light, it exhibits black.
- Carbon black pigments also absorb this near infrared light.
- In the wavelength region of sunlight it is considered that light in a wavelength region of 800 nm to 1,400 nm among the near infrared rays is particularly likely to contribute to heat.
- black pigments such as carbon black pigments also absorb near infrared rays in the wavelength range of 800 nm to 1,400 nm that contribute to heat greatly. For this reason, there is a problem that an article colored with a black pigment is easily heated by being exposed to sunlight.
- a black matrix hereinafter also simply referred to as "BM”
- CF color filter
- Patent Document 1 discloses a black azo pigment having an azomethine group that absorbs visible light to exhibit black and reflects infrared light. In addition, since infrared rays are reflected, it is proposed to obtain an article which is not excessively heated by direct sunlight or the like by coloring with this black azo pigment.
- LCD liquid crystal color displays
- each pixel of R (red), G (green), and B (blue) is arranged in a stripe, mosaic, or triangle, and around each pixel to shield unnecessary light.
- a lattice-like BM is formed on the Then, light is irradiated from the back surface by back light, and color development is performed by additive color mixing of the transmitted light of each pixel of R, G, and B to form an image.
- chromatic color (RGB) pixel a red pigment, a green pigment, a blue pigment, a yellow pigment, a purple pigment, and the like are used, and they are improved.
- the conventional metal chromium film is being transferred to a resin film using a black pigment.
- the light-shielding black pigment used in BM is also improved.
- an in-plane switching method (IPS method) has been proposed in which an electric field is applied parallel to the substrate to convert a liquid crystal layer to display a pixel.
- IPS method in-plane switching method
- a black matrix on array system (BOA system) in which a BM is formed on a thin film transistor (TFT), and a color filter on array system (COA system) have been proposed.
- the pixel area can be expanded because the aperture ratio is high.
- the efficiency of the bonding process is improved, the working process can be rationalized.
- Methods such as the IPS method, the BOA method, and the COA method are methods in which a BM is formed on an active element such as a TFT, so the active element may malfunction if the BM is not electrically insulating.
- Carbon black pigments conventionally used as black pigments having a light-shielding property have low electrical resistance, and therefore can not be said to be suitable as black pigments to be applied to the above-mentioned system. Therefore, there is a demand for a light-shielding black pigment which is more excellent in electrical insulation.
- Patent Document 4 a black pigment for BM, in which carbon black having a defined oxygen content is coated with a highly insulating resin film to improve the electrical insulation.
- Patent Document 5 it has been proposed to apply BM formed using insulating carbon black, which is selected by measuring volume resistance value, or carbon black coated with a resin to improve electrical insulation, to the COA method.
- the carbon black pigment is essentially a material having conductivity, it has been difficult to secure sufficient insulation even when resin-coated or the like.
- Patent Document 6 the black azo pigment having an azomethine group proposed in Patent Document 1 (Patent Document 6).
- Patent Document 6 it has been difficult to mix and disperse the black azo pigment proposed in Patent Document 1 in a stable state in a vehicle. Fine pigment particles, once dispersed in a vehicle, tend to agglomerate in the vehicle. Then, the viscosity of the vehicle in which the pigment particles are aggregated is increased.
- the coloring power of the ink or the paint decreases, the gloss of the coating film decreases, or the optical density is insufficient as a light shielding material forming a BM, etc.
- the present invention has been made in view of the problems of the prior art, and the problem to be solved is that the liquid such as ink or paint containing pigment particles such as black azo pigment in a dispersed state
- the liquid such as ink or paint containing pigment particles such as black azo pigment in a dispersed state
- a pigment dispersant which can significantly improve the flowability, can suppress the aggregation of pigment particles, and can prevent the generation of foreign matter, and can produce a colored article having an excellent optical density.
- Another object of the present invention is to provide a pigment composition and a pigment colorant obtained by using the above-mentioned pigment dispersant.
- a pigment dispersant which is a compound represented by the following general formula (1) (hereinafter, also referred to as "first pigment dispersant").
- R 1 and R 2 independently of each other contain a basic nitrogen atom and may contain a hetero atom other than a nitrogen atom, a chain of 2 to 30 carbon atoms or R 3 and R 4 independently of one another represent a hydrogen atom, a halogen atom, or a group obtained by removing one hydrogen atom from the amino group of an amine compound having a cyclic aliphatic hydrocarbon group or an aromatic hydrocarbon group. Represents an alkyl group, an alkoxy group or a hydroxyl group)
- * represents a bonding position to a triazine ring
- X independently represents an alkylene group having 1 to 4 carbon atoms
- R 5 and R 6 represent Each other independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R 5 and R 6 may combine to form a cyclic structure, and the cyclic structure may contain a hetero atom
- a pigment dispersant shown below is provided.
- a pigment dispersant which is a compound represented by the following general formula (4) (hereinafter, also referred to as "second pigment dispersant").
- X represents an aromatic group having one or more sulfonic acid groups
- R 1 and R 2 are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or Show hydroxyl group
- * represents a bonding position to a nitrogen atom
- Y independently represents a halogen atom
- n represents a number of 0 to 2
- a pigment composition shown below is provided.
- [5] A pigment composition containing a pigment and the pigment dispersant according to any one of the above [1] to [4].
- [6] The pigment composition according to [5], wherein the content of the pigment dispersant is 0.5 to 40 parts by mass with respect to 100 parts by mass of the pigment.
- the pigment colorants shown below are provided.
- the pigment colorant according to the above [7] which is for image display, image recording, for gravure printing ink, for writing ink, for plastic, for pigment printing, for paint, or for black matrix of color filter .
- the present invention it is possible to remarkably improve the fluidity of a liquid such as an ink or a paint containing pigment particles such as a black azo pigment in a dispersed state, and to suppress aggregation of the pigment particles, and It is possible to provide a pigment dispersant capable of producing a colored article excellent in optical density while preventing the generation of foreign matter. Further, according to the present invention, it is possible to provide a pigment composition and a pigment colorant obtained by using the above-mentioned pigment dispersant.
- pigment dispersant (first pigment dispersant)
- the compound is a compound represented by the following general formula (1).
- the pigment dispersant of the present invention having such characteristics has excellent affinity to various pigments, and is suitable as a pigment dispersant for dispersing various pigments, whether organic or inorganic. It can be used for
- the pigment dispersant of the present invention has an excellent pigment dispersion effect, and thus can be used as a material for preparing pigment colorants for various uses.
- R 1 and R 2 independently of each other contain a basic nitrogen atom and may contain a hetero atom other than a nitrogen atom, a chain of 2 to 30 carbon atoms or R 3 and R 4 independently of one another represent a hydrogen atom, a halogen atom, or a group obtained by removing one hydrogen atom from the amino group of an amine compound having a cyclic aliphatic hydrocarbon group or an aromatic hydrocarbon group. Represents an alkyl group, an alkoxy group or a hydroxyl group)
- R 1 and R 2 each independently represent a group obtained by removing one hydrogen atom from the amino group of a particular amine compound.
- This particular amine compound contains a basic nitrogen atom and may contain a hetero atom other than a nitrogen atom, and a linear or cyclic aliphatic hydrocarbon group or aromatic hydrocarbon group having 2 to 30 carbon atoms It is a compound which it has.
- Specific examples of the specific amine compound include N, N-dimethylaminomethylamine, N, N-diethylaminomethylamine, N, N-dipropylaminomethylamine, N, N-dibutylaminomethylamine, N, N- Dimethylaminoethylamine, N, N-diethylaminoethylamine, N, N-dipropylaminoethylamine, N, N-dibutylaminoethylamine, N, N-dimethylaminopropylamine, N, N-diethylaminopropylamine, N, N-diethylaminopropylamine Propylaminopropylamine, N, N-dimethylaminobutylamine, N, N-diethylaminobutylamine, N, N-dipropylaminobutylamine, N, N-dibutylaminobutylamine, N, N-dimethylamino
- R 1 and R 2 are preferably each independently a group represented by the following general formula (2) or (3).
- * represents a bonding position to a triazine ring
- X independently represents an alkylene group having 1 to 4 carbon atoms
- R 5 and R 6 represent Each other independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R 5 and R 6 may combine to form a cyclic structure, and the cyclic structure may contain a hetero atom
- the groups represented by R 3 and R 4 are preferably, independently of each other, a hydrogen atom, an alkyl group or an alkoxy group, and a hydrogen atom or an alkyl group having 1 to 3 carbon atoms More preferably, it is an alkoxy group having 1 to 3 carbon atoms.
- the pigment dispersant of the present invention exhibits excellent action as a pigment dispersant even in a small amount.
- the pigment composition and the pigment colorant prepared using the pigment dispersant of the present invention are less likely to cause thickening or gelation during storage, and foreign matter is generated in the coating film formed using them. Hateful.
- Specific examples of the pigment dispersant of the present invention include compounds represented by the following formulas (A) to (F).
- pigment dispersant of the present invention compounds represented by the following formulas (1-1) to (1-8) can be mentioned.
- the compound (first pigment dispersant) represented by the general formula (1) can be synthesized, for example, as follows. First, cyanuric chloride and 4'-aminoacetoanilide are reacted at 0-10 ° C in acetic acid-acid water. Then, after reacting at 70 to 80 ° C. with the specific amine compound described above, deacetylation is performed at 90 to 100 ° C. under hydrochloric acid acidity. Then, it is cooled to 0-10 ° C. and diazotized with sodium nitrite.
- the compound represented by the general formula (1) is obtained by coupling reaction with a specific coupler such as N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide
- a specific coupler such as N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide
- a first pigment dispersant can be obtained.
- the pigment dispersant of the present invention may contain a small amount of unreacted starting materials and byproducts, some of these unreacted starting materials and byproducts may be included as long as the effects of the present invention can be obtained. It may be included.
- Specific couplers used in the above synthesis method include N-phenyl-2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a And carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide and the like.
- pigment dispersant One of the main features of the pigment dispersant (second pigment dispersant) of the present invention is that the compound is a compound represented by the following general formula (4).
- the pigment dispersant of the present invention having such characteristics has excellent affinity to various pigments, and is suitable as a pigment dispersant for dispersing various pigments, whether organic or inorganic. It can be used for
- the pigment dispersant of the present invention has an excellent pigment dispersion effect, and thus can be used as a material for preparing pigment colorants for various uses.
- X represents an aromatic group having one or more sulfonic acid groups
- R 1 and R 2 are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or Show hydroxyl group
- the aromatic group represented by X may have a substituent other than a sulfonic acid group.
- substituents other than the sulfonic acid group include halogen atoms, alkyl groups, alkoxy groups, and hydroxyl groups.
- a halogen atom a fluorine atom (F), a chlorine atom (Cl), a bromine atom (Br) etc. can be mentioned.
- X is preferably a group represented by any one of the following general formulas (5) to (7).
- * represents a bonding position to a nitrogen atom
- Y independently represents a halogen atom
- n represents a number of 0 to 2
- halogen atom represented by Y in the general formulas (5) to (7) include fluorine atom (F), chlorine atom (Cl), bromine atom (Br) and the like.
- the pigment dispersant of the present invention exhibits excellent action as a pigment dispersant even in a small amount.
- the pigment composition and the pigment colorant prepared using the pigment dispersant of the present invention are less likely to cause thickening or gelation during storage, and foreign matter is generated in the coating film formed using them. Hateful.
- compounds represented by the following formulas (H) to (M) can be mentioned.
- pigment dispersant of the present invention compounds represented by the following formulas (4-1) to (4-8) can be mentioned.
- the compound (second pigment dispersant) represented by the general formula (4) can be synthesized, for example, as follows. First, an aromatic amine having one or more sulfonic acid groups is diazotized by a conventional method. Then, the compound represented by the general formula (4) is produced by coupling reaction with a specific coupler such as N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide A second pigment dispersant can be obtained.
- the pigment dispersant of the present invention may contain a small amount of unreacted starting materials and byproducts, some of these unreacted starting materials and byproducts may be included as long as the effects of the present invention can be obtained. It may be included.
- Specific couplers used in the above synthesis method include N-phenyl-2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a And carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide and the like.
- the target pigment dispersion effect can be obtained by any method.
- the pigment and the pigment dispersant are mixed in advance by a known method, and the obtained pigment composition is added to a vehicle or the like to disperse the pigment in the vehicle.
- the pigment and the pigment dispersant are separately added to the vehicle or the like at a predetermined ratio to disperse the pigment in the vehicle.
- the pigment and the pigment dispersant are separately dispersed in a vehicle or the like, and the resulting dispersions are mixed at a predetermined ratio to disperse the pigment in the vehicle.
- a pigment dispersant is added at a predetermined ratio to a dispersion obtained by dispersing a pigment in a vehicle or the like to disperse the pigment in the vehicle.
- the pigment composition of the present invention contains a pigment and the above-mentioned pigment dispersant.
- the content of the pigment dispersant relative to 100 parts by mass of the pigment is preferably 0.5 to 40 parts by mass, and more preferably 1 to 20 parts by mass. If the content of the pigment dispersant is less than the above range, the desired effects of the dispersant may not be obtained sufficiently. On the other hand, when the content of the pigment dispersant is larger than the above range, the effect of the dispersant becomes flat and no further effect can be expected, and the cost of the material is increased, which is disadvantageous in productivity. May be Furthermore, in a paint or ink using a pigment composition containing such a pigment dispersant in excess, various physical properties of the vehicle decrease, or the color of the pigment largely changes depending on the color of the pigment dispersant itself. Sometimes.
- a pigment having a black hue when used for a pigment having a black hue, a more remarkable effect is obtained, which is preferable.
- a pigment having such a black hue 1- [4-[(4,5,6,7-tetrachloro-3-oxoisoindoline-1], which is an azomethine azo black pigment (black azo pigment), is used.
- the method for producing the pigment composition of the present invention is not particularly limited.
- the pigment composition of the present invention can be obtained by mixing a pigment and a pigment dispersant by a conventionally known method.
- the following methods (1) to (4) can be mentioned as specific examples of the method for producing the pigment composition of the present invention.
- (1) A method of mixing pigment powder and pigment dispersant powder without using a dispersing machine.
- (2) A method of mechanically mixing the pigment and the pigment dispersant with various dispersers such as a kneader, a roll, an attritor, a horizontal bead mill, and the like.
- a method of uniformly depositing the pigment dispersant on the surface of the pigment by adding and mixing a solution in which the pigment dispersant is dissolved or finely dispersed in a suspension of a pigment in an aqueous or organic solvent system.
- a pigment and a pigment dispersant are dissolved in a solvent having strong solvency such as sulfuric acid and then coprecipitated with a poor solvent such as water.
- the nature of the pigment dispersant used to prepare the pigment composition may be any of solution, slurry, paste and powder. Even when a pigment dispersant of any nature is used, a desired effect can be obtained.
- the pigment composition to be used contains a black azo pigment having an optical property of well transmitting light in the infrared region, particularly light in the near infrared region, and substantially blocking light in the visible light region, and the above-mentioned pigment dispersant.
- the pigment composition to be used will be described.
- This pigment composition can be suitably used, for example, as an infrared filter mounted on an electronic device using infrared radiation.
- this pigment composition transmits printed printing without absorbing near-infrared rays, for example, printed printing on an aluminum packaging material does not become an obstacle for foreign matter detection, even to PTP (press through pack) packaging ink It can be used suitably.
- the above-mentioned black azo pigment has excellent electrical insulation unlike conductive materials such as carbon black.
- the pigment composition containing this black azo pigment and the above-mentioned pigment dispersant is suitable also as a material for forming the black matrix (BM) of a color filter (CF), for example.
- the pigment colorant of the present invention contains the above-mentioned pigment composition and a film-forming material.
- the pigment colorant of the present invention can be used in a wide range of fields as an image display, an image recording, a gravure printing ink, a writing ink, a plastic, a pigment printing, a paint coloring agent, etc. .
- the pigment colorant of the present invention is suitable as a colorant for the black matrix of a color filter.
- the pigment colorant of the present invention is particularly useful as a material for an image recording agent such as a gravure printing ink.
- the amount of the pigment composition in the pigment colorant of the present invention is preferably 5 to 500 parts by mass, more preferably 50 to 250 parts by mass, with respect to 100 parts by mass of the film-forming material.
- the pigment colorant of the present invention can be prepared, for example, by mixing a finely divided pigment with a film-forming material such as a resin ((co) polymer), an oligomer, or a monomer.
- the pigment colorant of the present invention can also be prepared by mixing a pigment composition and a liquid containing the above film-forming material.
- a solution containing a film-forming material a solution containing a photosensitive film-forming material, a solution containing a non-photosensitive film-forming material, or the like can be used.
- the liquid containing a photosensitive film-forming material include a liquid containing a photosensitive film-forming material used for ultraviolet curable ink, electron beam curable ink and the like.
- specific examples of the liquid containing the non-photosensitive film-forming material include varnishes used for printing inks such as letterpress inks, lithographic inks, gravure inks, screen inks, etc. varnishes used for normal temperature drying or baking paints; Examples include varnishes used for coating and varnishes used for thermal transfer ribbons.
- the photosensitive film-forming material include photosensitive cyclic rubber resin, photosensitive phenolic resin, photosensitive polyacrylate resin, photosensitive polyamide resin, photosensitive polyimide resin, unsaturated polyester resin And photosensitive resins such as polyester acrylate resins, polyepoxy acrylate resins, polyurethane acrylate resins, polyether acrylate resins, and polyol acrylate resins.
- photosensitive resins such as polyester acrylate resins, polyepoxy acrylate resins, polyurethane acrylate resins, polyether acrylate resins, and polyol acrylate resins.
- Various monomers may be added as reactive diluents to the liquid containing these photosensitive resins.
- a photocurable photosensitive pigment dispersion is obtained by adding a photopolymerization initiator such as benzoin ether or benzophenone to a pigment colorant containing a photosensitive resin as a film-forming material, and milling by a conventionally known method. be able to. If a thermal polymerization initiator is used instead of the above-mentioned photopolymerization initiator, a thermosetting pigment dispersion can be obtained.
- a photopolymerization initiator such as benzoin ether or benzophenone
- non-photosensitive film-forming material examples include styrene- (meth) acrylate copolymers, soluble polyamide resins, soluble polyimide resins, soluble polyamideimide resins, soluble polyesterimide resins, water soluble Amino polyester resins, their water-soluble salts, water-soluble salts of styrene-maleic acid ester copolymers, water-soluble salts of (meth) acrylic acid ester- (meth) acrylic acid copolymers, etc. it can.
- the pigment colorant of the present invention may further contain a polymer dispersant.
- a polymer dispersant an acidic polymer dispersant and a basic polymer dispersant can be used.
- the compounding amount of the polymer dispersant is preferably 2 to 100 parts by mass, and more preferably 10 to 50 parts by mass with respect to 100 parts by mass of the pigment.
- pigment colorant for BM pigment colorant for BM
- BM photoresist
- the above-mentioned pigment composition containing a black pigment such as a black azo pigment is added to a solution containing a film-forming material and premixed.
- dispersion treatment can obtain a pigment colorant for BM.
- a pigment colorant for BM can be obtained.
- a solution obtained by dissolving a black azo pigment and a pigment dispersant in sulfuric acid or the like and water are mixed, and a pigment composition containing the black azo pigment and a pigment dispersant is precipitated as a solid solution or a coprecipitate.
- the separated pigment composition is added to and mixed with a liquid containing a film-forming material, a polymer dispersant and the like, then grinding and dispersion may be carried out using a horizontal type wet medium disperser (bead mill) such as Dyno mill,
- a horizontal type wet medium disperser such as Dyno mill
- a solution of a film-forming polymer contained in a conventionally known pigment dispersion for color filters can be used.
- a liquid medium used for the liquid containing a film formation material the liquid mixture of an organic solvent, water, and an organic solvent and water etc. can be mentioned.
- conventionally known additives such as a dispersion aid, a leveling agent, an adhesion agent and the like can be added, as necessary.
- BM pigment colorant containing a black azo pigment dispersed with a pigment dispersant By using the above-described BM pigment colorant containing a black azo pigment dispersed with a pigment dispersant, it is possible to form a black matrix (BM) for a CF substrate that is substantially electrically insulating.
- BM can be formed on a CF substrate by a method such as photolithography, laser ablation, ink jet printing, printing, transfer, or application using, for example, a pigment colorant for BM. .
- the film thickness of the BM may be, for example, 0.5 to 3 ⁇ m, and usually 1 to 2 ⁇ m.
- BM of sufficient optical density can be formed by using said pigment colorant for BM.
- the optical density of the formed BM is, for example, 1.6 or more, preferably 2.0 or more.
- a specific method for causing the BM to have a function as a spacer a method of forming the BM itself thickly; a method of stacking pixels on the BM; a method of stacking a colorless resin film on the BM ;and so on. In any method, it is preferable to set the film thickness to about 5 to 10 ⁇ m. Thereafter, if a known colorant for forming a chromatic color pixel is used, it is possible to further form a chromatic color pixel on the CF substrate on which the BM is formed.
- Example 1-1 To 100 parts of water, 14.8 parts of cyanuric chloride, 12 parts of 4′-aminoacetoanilide, and 9.6 parts of acetic acid were added, and reacted at 0 to 10 ° C. for 1 hour. After 24.5 parts of N, N-dimethylaminopropylamine was added and allowed to react at 70-80 ° C. for 2 hours, 33 parts of concentrated hydrochloric acid was further added. After deacetylation by reaction at 90 to 100 ° C. for 1 hour, the reaction solution is cooled to 0 to 10 ° C., 6 parts of sodium nitrite is added and diazotized to obtain a diazonium salt solution.
- a solution was prepared by dissolving 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide and 26 parts of sodium hydroxide in 800 parts of methanol.
- a solution of diazonium salt was added to the prepared solution, and coupling reaction was performed at 20 to 30 ° C. for 5 hours. After filtration and washing with water, it was dried to obtain 49 parts of a blue-violet pigment dispersant (A) represented by the following formula (A).
- a peak with a molecular weight of 780.94 was detected by mass spectrometry using MALDI (matrix-assisted laser desorption / ionization).
- MALDI matrix-assisted laser desorption / ionization
- the purity measured using high performance liquid chromatography (MODEL 860-CO (manufactured by JASCO Corporation), column: YMC Pack Pro C 18 (manufactured by YMC)) was 91%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 1-2 In the same manner as in Example 1-1 above except that 31 parts of N, N-diethylaminopropylamine was used instead of 24.5 parts of N, N-dimethylaminopropylamine, 53 parts of a violet-colored pigment dispersant (B) are obtained.
- the peak of molecular weight 837.05 was detected by mass spectrometry using MALDI.
- the purity measured using high performance liquid chromatography was 91%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 1-3 The following formula (C) is prepared in the same manner as in Example 1-1 above, except that 45 parts of N, N-dibutylaminopropylamine is used instead of 24.5 parts of N, N-dimethylaminopropylamine. 61 parts of blue-violet pigment dispersant (C) represented by
- the peak of molecular weight 949.27 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 92%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 1-4 Instead of 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H
- the peak of molecular weight 794.97 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 93%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 1-5 Instead of 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H Except that 31.7 parts of 4-benzo [a] carbazole-3-carboxamide were used, and 31 parts of N, N-diethylaminopropylamine was used instead of 24.5 parts of N, N-dimethylaminopropylamine In the same manner as in Example 1-1 described above, 55 parts of a blue-violet pigment dispersant (E) represented by the following formula (E) was obtained.
- E blue-violet pigment dispersant
- the peak of molecular weight 851.08 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 94%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 1-6 Instead of 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H Using 31.7 parts of 4-benzo [a] carbazole-3-carboxamide, and using 45 parts of N, N-dibutylaminopropylamine instead of 24.5 parts of N, N-dimethylaminopropylamine Except for the above, in the same manner as in Example 1-1 described above, 62 parts of a blue-violet pigment dispersant (F) represented by the following formula (F) was obtained.
- F blue-violet pigment dispersant
- the peak of molecular weight 963.29 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 93%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- the resulting milled product was placed in 3,000 parts of water heated to 80 ° C., stirred for 1 hour, filtered and washed with water to remove sodium chloride and diethylene glycol, to obtain a press cake.
- a nonionic surfactant (amount of 200% with respect to the pigment) was added to the obtained press cake and diluted with water, and then subjected to ultrasonic dispersion treatment to prepare a pigment dispersion.
- the average particle size of the fine particles in the pigment dispersion measured using a particle size measurement apparatus (trade name "Model N-4", manufactured by Coulter, Inc.) was about 90 nm.
- the press cake was dried and crushed to obtain a finely divided powder of black pigment.
- Examples 1-8 to 1-12 Black pigment dispersion (Examples 1-8 to 1-) in the same manner as in Example 1-7 described above except that pigment dispersants (B) to (F) were used instead of the pigment dispersant (A). I got 12).
- a black pigment dispersion was spread on a polypropylene film using a gloss bar coater (a winding thickness of 0.45 mm) of a spread color surface to form a spread color surface. While observing the gloss of the formed extended surface visually, it observed using the gloss meter and evaluated the "gloss of extended surface" according to the evaluation criteria shown below. In addition, it can be determined that the higher the gloss of the developed color surface, the better. :: very good ⁇ : good ⁇ : bad
- the transmittance of light around 580 to 625 nm was extremely low, less than 5%.
- the volume resistivity of the formed black coating film was 10 ⁇ 14 > ohm * cm or more, and it turned out that it is a highly insulating coating film.
- BM Pattern A photosensitive black resist ink was applied on a glass substrate using a spin coater and then prebaked at 80 ° C. for 10 minutes to form a black coating film with a thickness of 2 ⁇ m. It was exposed with a light quantity of 100 mJ / cm through a negative photomask pattern of a BM pattern using an extra-high pressure mercury lamp. After developing with an alkaline developer, the resultant was washed with water and dried to form a BM pattern (BM film). Since the formed BM film is a highly insulating coating film, for example, it can be used as a BM film that holds the thickness of the liquid crystal layer instead of a spacer, and liquid crystals of the IPS system or COA system can be constructed. . Moreover, in order to fully absorb visible light to a long wavelength area, it can be conveniently used as BM of LCD panel which adopted LED back light.
- a pigment dispersion using PG 36 and a pigment dispersion using PY 185 were blended at a ratio of 6: 4 to obtain a blend.
- a photosensitive green resist ink was prepared in the same manner as in the case of the photosensitive black resist ink described above, except that the formulation obtained instead of the black pigment dispersion was used.
- a pigment dispersion using PB 15: 6 and a pigment dispersion using PV 23 were blended at a ratio of 8: 2 to obtain a blend.
- a photosensitive blue resist ink was prepared in the same manner as in the case of the photosensitive black resist ink described above, except that the formulation obtained in place of the black pigment dispersion was used.
- Example 1-14 10.5 parts of a finely divided powder of the black pigment obtained in Example 1-7, 0.5 parts of the pigment dispersant (A) obtained in Example 1-1, and a polyurethane obtained by chain-lengthening an isocyanate-terminated polyester with a diamine Thirty parts of a 40% methyl ethyl ketone: toluene (1: 3) mixed solvent solution of the resin was mixed.
- a black gravure printing ink was prepared by dispersing the pigment using a horizontal continuous media disperser with glass beads as the dispersing medium.
- the prepared gravure printing ink was applied to a polyamide film, a polyester film, and a polypropylene film using a gravure printer, and printing was performed to obtain a black film. All obtained black films were capable of shielding visible light and sufficiently transmitting near-infrared light.
- Example 1-15 Using a Henschel mixer, 20 parts of the finely divided powder of the black pigment obtained in Example 1-7, 1 part of the pigment dispersant (A) obtained in Example 1-1, and 80 parts of the polycarbonate resin powder are sufficiently mixed did. Then, they were mixed and kneaded using a twin-screw extruder to obtain a masterbatch containing 20% of a black pigment. After mixing 2 parts of the obtained masterbatch and 100 parts of polycarbonate resin pellets using a Henschel mixer, they were kneaded using a twin-screw extruder to obtain black resin pellets.
- the resin pellet obtained by using an in-line screw injection molding machine was molded to obtain a black polycarbonate resin molded plate (black plate) excellent in pigment dispersibility.
- the obtained black plate shields visible light and transmits near infrared rays sufficiently, and can be used for applications such as an infrared transmission filter.
- Example 1-16 20 parts of a finely divided powder of the black pigment obtained in Example 1-7, 1 part of the pigment dispersant (A) obtained in Example 1-1, and 80 parts of an acrylic resin (polymethyl methacrylate) powder, Used to mix well. Then, they were mixed and kneaded using a twin-screw extrusion kneader to obtain a masterbatch containing 20% of a black pigment. After mixing 2 parts of the obtained masterbatch and 100 parts of acrylic resin pellets using a Henschel mixer, they were kneaded using an extruder to obtain black resin pellets.
- the resin pellet obtained by using an in-line screw injection molding machine was molded to obtain a black acrylic resin molded plate (black plate) excellent in pigment dispersibility.
- the obtained black plate shields visible light and transmits near infrared rays sufficiently, and can be used for applications such as an infrared transmission filter.
- Example 1-17 Preparation and Evaluation of Polyurethane Coating Agent (1)> (Example 1-17)
- Preparation of Polyurethane Coating Agent (Liquid) 40 parts of a finely divided powder of the black pigment obtained in Example 1-7, 2 parts of the pigment dispersant (A) obtained in Example 1-1, and an adipate ester system 60 parts of the plasticizer was sufficiently kneaded using a three-roll kneader to obtain a plasticizer-dispersed paste of black pigment (black pigment toner).
- a white polyurethane coating solution was prepared in the same manner as described above except that only the white pigment toner was used without using the black pigment toner. Furthermore, a black polyurethane coating liquid was prepared in the same manner as described above except that only the black pigment toner was used without using the white pigment toner.
- a gray polyurethane coating solution was applied to the surface of a nylon woven fabric tent so as to be about 200 g / m 2 and then dried to produce a gray processed woven fabric.
- the fabricated processed woven fabric reflects the heat rays of direct sunlight, and could be used for applications such as tents that prevent temperature rise.
- the prepared black polyurethane coating liquid was top-coated to obtain a polyurethane synthetic leather having a two-layer structure.
- the resulting synthetic leather reflects heat rays and could be used for applications such as car interiors.
- Example 1-18 50 parts of a finely divided powder of the black pigment obtained in Example 1-7, 2.5 parts of the pigment dispersant (A) obtained in Example 1-1, and 50 parts of a lubricant (ethylene bis-stearic acid amide powder) The mixture was mixed using a Henschel mixer to obtain a 50% pigment content powder colorant (dry color). After mixing 1 part of the obtained dry color and 99 parts of polypropylene resin pellets using a Henschel mixer, they are kneaded using a vent type 40 m / m extruder, and 0.5% of black pigment is 0.5%. A resin pellet was obtained.
- the obtained resin pellet was spun using a melt spinning machine to obtain a clear black polypropylene fiber (stock solution colored fiber) having a fineness of 10 denier excellent in pigment dispersibility.
- the woven fabric produced using the obtained undiluted solution colored fiber is capable of reflecting the heat rays of direct sunlight, and could be used for applications such as parasols and curtains that avoid temperature rise.
- Example 1-19 5 parts of a finely divided powder of the black pigment obtained in Example 1-7, 0.1 parts of the pigment dispersant (A) obtained in Example 1-1, 20 parts of a titanium oxide white pigment, and 75 parts of a polyethylene resin powder Mix using a Henschel mixer to obtain a dry color.
- One part of the obtained dry color and 100 parts of polybutylene terephthalate (PBT) resin pellets were mixed using a Henschel mixer and then kneaded using an extruder to obtain black resin pellets.
- the resin pellet obtained by using an in-line screw injection molding machine was molded to obtain a black resin molded plate excellent in pigment dispersibility.
- the obtained resin molded board was capable of reflecting the heat rays of direct sunlight, and could be used as a resin molded article for avoiding temperature rise.
- Example 1-20 71 parts of a press cake containing 25 parts of a finely divided powder of the black pigment obtained in Example 1-7, 1.5 parts of the pigment dispersant (A) obtained in Example 1-1, 10 parts of a nonionic pigment dispersant 1 part of the antifoam and 18 parts of water were thoroughly premixed. Next, the pigment was dispersed using a horizontal continuous medium disperser using glass beads as a dispersion medium to prepare a high concentration dispersion (black color base) of black pigment.
- Example 2-1 A solution was prepared by dissolving 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide and 6.4 parts of sodium hydroxide in 800 parts of methanol. On the other hand, 13.9 parts of o-aminobenzenesulfonic acid was diazotized by a conventional method to obtain a solution of diazonium salt. A solution of diazonium salt was added to the prepared solution, and coupling reaction was performed at 20 to 30 ° C. for 5 hours. After filtration and washing with water, it was dried to obtain 43 parts of a blue-violet pigment dispersant (H) represented by the following formula (H).
- H blue-violet pigment dispersant
- a peak with a molecular weight of 566.60 was detected by mass spectrometry using MALDI (matrix-assisted laser desorption / ionization). Further, the purity measured using high performance liquid chromatography (MODEL 860-CO (manufactured by JASCO Corporation), column: YMC Pack Pro C18 (manufactured by YMC)) was 96%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- MALDI matrix-assisted laser desorption / ionization
- Example 2-2 In the same manner as in Example 2-1, except that 13.9 parts of m-aminobenzenesulfonic acid was used instead of 13.9 parts of o-aminobenzenesulfonic acid, a table of the following formula (I) was used. 42 parts of blue-violet pigment dispersant (I) were obtained.
- the peak of molecular weight 566.60 was detected by mass spectrometry using MALDI. Moreover, the purity measured using high performance liquid chromatography was 95%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 2-3 The following formula (J) was prepared in the same manner as in Example 2-1, except that 17.9 parts of 4-amino-1-naphthalenesulfonic acid was used instead of 13.9 parts of o-aminobenzenesulfonic acid. 46 parts of a blue-violet pigment dispersant (J) represented by
- the peak of molecular weight 616.66 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 94%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- the peak of molecular weight 580.62 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 94%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 2-5 Instead of 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H Except that 31.7 parts of 4-benzo [a] carbazole-3-carboxamide were used, and 13.9 parts of m-aminobenzenesulfonic acid was used instead of 13.9 parts of o-aminobenzenesulfonic acid In the same manner as in Example 2-1 described above, 45 parts of a blue-violet pigment dispersant (L) represented by the following formula (L) was obtained.
- L blue-violet pigment dispersant
- the peak of molecular weight 580.62 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 94%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- Example 2-6 Instead of 30.5 parts of N- (4-methoxyphenyl) -2-hydroxy-11H-benzo [a] carbazole-3-carboxamide, N- (2-methyl-4-methoxyphenyl) -2-hydroxy-11H 31.7 parts of 4-benzo [a] carbazole-3-carboxamide were used, and 17.9 parts of 4-amino-1-naphthalenesulfonic acid was used in place of 13.9 parts of o-aminobenzenesulfonic acid Except for the above, in the same manner as in Example 2-1 described above, 48 parts of a blue-violet pigment dispersant (M) represented by the following formula (M) was obtained.
- M blue-violet pigment dispersant
- the peak of molecular weight 630.68 was detected by mass spectrometry using MALDI. Also, the purity measured using high performance liquid chromatography was 94%. From the raw materials used, the results of mass spectrometry, and the results of high performance liquid chromatography, it was confirmed that the compound having the desired structure was obtained.
- the resulting milled product was placed in 3,000 parts of water heated to 80 ° C., stirred for 1 hour, filtered and washed with water to remove sodium chloride and diethylene glycol, to obtain a press cake.
- a nonionic surfactant (amount of 200% with respect to the pigment) was added to the obtained press cake and diluted with water, and then subjected to ultrasonic dispersion treatment to prepare a pigment dispersion.
- the average particle size of the fine particles in the pigment dispersion measured using a particle size measurement apparatus (trade name "Model N-4", manufactured by Coulter, Inc.) was about 90 nm.
- the press cake was dried and crushed to obtain a finely divided powder of black pigment.
- Examples 2-8 to 2-12 A black pigment dispersion (Examples 2-8 to 2--2) in the same manner as in Example 2-7 above, except that pigment dispersants (I) to (M) were used instead of the pigment dispersant (H). I got 12).
- Example 2-2 The same as Example 2-7 described above except that a pigment dispersant (N) (a phthalocyanine sulfonate (trade name "SOLSPERS-12000", manufactured by Lubrizol)) is used instead of the pigment dispersant (H) Thus, a black pigment dispersion (Comparative Example 2-2) was obtained.
- N a pigment dispersant
- SOLSPERS-12000 phthalocyanine sulfonate
- a black pigment dispersion was spread on a polypropylene film using a gloss bar coater (a winding thickness of 0.45 mm) of a spread color surface to form a spread color surface.
- the gloss of the formed spread surface was visually observed and also observed using a gloss meter, and the "gloss of the spread surface" was evaluated according to the criteria shown below. In addition, it can be determined that the higher the gloss of the developed color surface, the better. :: very good ⁇ : good ⁇ : bad
- the transmittance of light around 580 to 625 nm was extremely low, less than 5%.
- the volume resistivity of the formed black coating film was 10 ⁇ 14 > ohm * cm or more, and it turned out that it is a highly insulating coating film.
- BM Pattern A photosensitive black resist ink was applied on a glass substrate using a spin coater and then prebaked at 80 ° C. for 10 minutes to form a black coating film with a thickness of 2 ⁇ m. It was exposed with a light quantity of 100 mJ / cm through a negative photomask pattern of a BM pattern using an extra-high pressure mercury lamp. After developing with an alkaline developer, the resultant was washed with water and dried to form a BM pattern (BM film). Since the formed BM film is a highly insulating coating film, for example, it can be used as a BM film that holds the thickness of the liquid crystal layer instead of a spacer, and liquid crystals of the IPS system or COA system can be constructed. . Moreover, in order to fully absorb visible light to a long wavelength area, it can be conveniently used as BM of LCD panel which adopted LED back light.
- a pigment dispersion using PG 36 and a pigment dispersion using PY 185 were blended at a ratio of 6: 4 to obtain a blend.
- a photosensitive green resist ink was prepared in the same manner as in the case of the photosensitive black resist ink described above, except that the formulation obtained instead of the black pigment dispersion was used.
- a pigment dispersion using PB 15: 6 and a pigment dispersion using PV 23 were blended at a ratio of 8: 2 to obtain a blend.
- a photosensitive blue resist ink was prepared in the same manner as in the case of the photosensitive black resist ink described above, except that the formulation obtained in place of the black pigment dispersion was used.
- Example 2-14 10.5 parts of a finely divided powder of the black pigment obtained in Example 2-7, 0.5 parts of the pigment dispersant (H) obtained in Example 2-1, and a polyurethane obtained by chain-lengthening an isocyanate-terminated polyester with a diamine Thirty parts of a 40% methyl ethyl ketone: toluene (1: 3) mixed solvent solution of the resin was mixed.
- a black gravure printing ink was prepared by dispersing the pigment using a horizontal continuous media disperser with glass beads as the dispersing medium.
- the prepared gravure printing ink was applied to a polyamide film, a polyester film, and a polypropylene film using a gravure printer, and printing was performed to obtain a black film. All obtained black films were capable of shielding visible light and sufficiently transmitting near-infrared light.
- Example 2-15 Using a Henschel mixer, 20 parts of the finely divided powder of the black pigment obtained in Example 2-7, 1 part of the pigment dispersant (H) obtained in Example 2-1, and 80 parts of the polycarbonate resin powder are sufficiently mixed did. Then, they were mixed and kneaded using a twin-screw extruder to obtain a masterbatch containing 20% of a black pigment. After mixing 2 parts of the obtained masterbatch and 100 parts of polycarbonate resin pellets using a Henschel mixer, they were kneaded using a twin-screw extruder to obtain black resin pellets.
- the resin pellet obtained by using an in-line screw injection molding machine was molded to obtain a black polycarbonate resin molded plate (black plate) excellent in pigment dispersibility.
- the obtained black plate shields visible light and transmits near infrared rays sufficiently, and can be used for applications such as an infrared transmission filter.
- Example 2-16 20 parts of a finely divided powder of the black pigment obtained in Example 2-7, 1 part of the pigment dispersant (H) obtained in Example 2-1, and 80 parts of an acrylic resin (polymethyl methacrylate) powder, Used to mix well. Then, they were mixed and kneaded using a twin-screw extrusion kneader to obtain a masterbatch containing 20% of a black pigment. After mixing 2 parts of the obtained masterbatch and 100 parts of acrylic resin pellets using a Henschel mixer, they were kneaded using an extruder to obtain black resin pellets.
- the resin pellet obtained by using an in-line screw injection molding machine was molded to obtain a black acrylic resin molded plate (black plate) excellent in pigment dispersibility.
- the obtained black plate shields visible light and transmits near infrared rays sufficiently, and can be used for applications such as an infrared transmission filter.
- Example 2-1-7 Preparation of Polyurethane Coating Agent (Liquid) 40 parts of a finely divided powder of the black pigment obtained in Example 2-7, 2 parts of the pigment dispersant (H) obtained in Example 2-1, and an adipate ester system 60 parts of the plasticizer was sufficiently kneaded using a three-roll kneader to obtain a plasticizer-dispersed paste of black pigment (black pigment toner).
- a white polyurethane coating solution was prepared in the same manner as described above except that only the white pigment toner was used without using the black pigment toner. Furthermore, a black polyurethane coating liquid was prepared in the same manner as described above except that only the black pigment toner was used without using the white pigment toner.
- a gray polyurethane coating solution was applied to the surface of a nylon woven fabric tent so as to be about 200 g / m 2 and then dried to produce a gray processed woven fabric.
- the fabricated processed woven fabric reflects the heat rays of direct sunlight, and could be used for applications such as tents that prevent temperature rise.
- the prepared black polyurethane coating liquid was top-coated to obtain a polyurethane synthetic leather having a two-layer structure.
- the resulting synthetic leather reflects heat rays and could be used for applications such as car interiors.
- Example 2-18 50 parts of a finely divided powder of the black pigment obtained in Example 2-7, 2.5 parts of the pigment dispersant (H) obtained in Example 2-1, and 50 parts of a lubricant (ethylene bis-stearic acid amide powder) The mixture was mixed using a Henschel mixer to obtain a 50% pigment content powder colorant (dry color). After mixing 1 part of the obtained dry color and 99 parts of polypropylene resin pellets using a Henschel mixer, they are kneaded using a vent type 40 m / m extruder, and 0.5% of black pigment is 0.5%. A resin pellet was obtained.
- the resin pellet obtained was spun using a melt spinning machine to obtain a clear black polypropylene fiber (stock solution colored fiber) having a fineness of 10 denier excellent in pigment dispersibility.
- the woven fabric produced using the obtained undiluted solution colored fiber is capable of reflecting the heat rays of direct sunlight, and could be used for applications such as parasols and curtains that avoid temperature rise.
- Example 2-19 5 parts of a finely divided powder of the black pigment obtained in Example 2-7, 0.1 parts of the pigment dispersant (H) obtained in Example 2-1, 20 parts of a titanium oxide white pigment, and 75 parts of a polyethylene resin powder Mix using a Henschel mixer to obtain a dry color.
- One part of the obtained dry color and 100 parts of polybutylene terephthalate (PBT) resin pellets were mixed using a Henschel mixer and then kneaded using an extruder to obtain black resin pellets.
- the resin pellet obtained by using an in-line screw injection molding machine was molded to obtain a black resin molded plate excellent in pigment dispersibility.
- the obtained resin molded board was capable of reflecting the heat rays of direct sunlight, and could be used as a resin molded article for avoiding temperature rise.
- Example 2-20 71 parts of a press cake containing 25 parts of a finely divided powder of the black pigment obtained in Example 2-7, 1.5 parts of the pigment dispersant (H) obtained in Example 2-1, 10 parts of a nonionic pigment dispersant 1 part of the antifoam and 18 parts of water were thoroughly premixed. Next, the pigment was dispersed using a horizontal continuous medium disperser using glass beads as a dispersion medium to prepare a high concentration dispersion (black color base) of black pigment.
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Abstract
Description
[1]下記一般式(1)で表される化合物である顔料分散剤(以下、「第1の顔料分散剤」とも記す)。
[3]下記一般式(4)で表される化合物である顔料分散剤(以下、「第2の顔料分散剤」とも記す)。
[5]顔料と、前記[1]~[4]のいずれかに記載の顔料分散剤と、を含有する顔料組成物。
[6]前記顔料100質量部に対する、前記顔料分散剤の含有量が、0.5~40質量部である前記[5]に記載の顔料組成物。
[7]前記[4]又は[5]に記載の顔料組成物と、皮膜形成材料と、を含有する顔料着色剤。
[8]画像表示用、画像記録用、グラビア印刷インキ用、筆記用インキ用、プラスチック用、顔料捺染用、塗料用、又はカラーフィルターのブラックマトリックス用である前記[7]に記載の顔料着色剤。
(第1の顔料分散剤)
以下、好ましい実施形態を例に挙げて本発明の詳細について説明する。本発明の顔料分散剤(第1の顔料分散剤)は、下記一般式(1)で表される化合物であることを主要な特徴の一つとする。このような特徴を有する本発明の顔料分散剤は、種々の顔料に対して優れた親和性を有しており、有機・無機を問わず、様々な顔料を分散させるための顔料分散剤として好適に使用することができる。また、本発明の顔料分散剤は、優れた顔料分散効果を有しているので、種々の用途の顔料着色剤を調製するための材料として使用することができる。
本発明の顔料分散剤(第2の顔料分散剤)は、下記一般式(4)で表される化合物であることを主要な特徴の一つとする。このような特徴を有する本発明の顔料分散剤は、種々の顔料に対して優れた親和性を有しており、有機・無機を問わず、様々な顔料を分散させるための顔料分散剤として好適に使用することができる。また、本発明の顔料分散剤は、優れた顔料分散効果を有しているので、種々の用途の顔料着色剤を調製するための材料として使用することができる。
本発明の顔料分散剤の使用方法は特に制限されないが、以下に示すような使用方法が例示される。いずれの方法であっても、目的とする顔料分散効果を得ることができる。
(1)顔料と顔料分散剤とを予め公知の方法で混合し、得られた顔料組成物をビヒクルなどに添加して顔料をビヒクル中に分散させる。
(2)ビヒクルなどに顔料と顔料分散剤を所定の割合で別々に添加して、顔料をビヒクル中に分散させる。
(3)顔料と顔料分散剤をそれぞれビヒクルなどに別々に分散させた後、得られた各分散液を所定の割合で混合し、顔料をビヒクル中に分散させる。
(4)ビヒクルなどに顔料を分散させて得られた分散液に、顔料分散剤を所定の割合で添加して、顔料をビヒクル中に分散させる。
本発明の顔料組成物は、顔料と、前述の顔料分散剤とを含有する。顔料100質量部に対する顔料分散剤の含有量は、0.5~40質量部であることが好ましく、1~20質量部であることがさらに好ましい。顔料分散剤の含有量が上記した範囲内よりも少ないと、目的とする分散剤の効果が十分に得られなくなる場合がある。一方、上記した範囲内よりも顔料分散剤の含有量が多いと、分散剤の効果が頭打ちになり、それ以上の効果が期待できず、材料がコスト高になるなど、生産性の面で不利になる場合がある。さらには、このような顔料分散剤を過剰に含有する顔料組成物を用いた塗料やインキにおいて、ビヒクルの諸物性が低下したり、顔料分散剤自体の色によって、顔料のもつ色相が大きく変化したりする場合もある。
(1)顔料の粉末と顔料分散剤の粉末とを、分散機を使用せずに混合する方法。
(2)顔料と顔料分散剤とを、ニーダー、ロール、アトライター、横型ビーズミルなどの各種分散機で機械的に混合する方法。
(3)顔料の水系又は有機溶剤系のサスペンションに、顔料分散剤を溶解又は微分散させた液を添加及び混合し、顔料の表面に顔料分散剤を均一に沈着させる方法。
(4)硫酸などの強い溶解力を持った溶媒に顔料及び顔料分散剤を溶解させた後、水などの貧溶媒によって共析出させる方法。
本発明の顔料着色剤は、前述の顔料組成物と、皮膜形成材料とを含有する。本発明の顔料着色剤は、画像表示用、画像記録用、グラビア印刷インキ用、筆記用インキ用、プラスチック用、顔料捺染用、及び塗料用の着色剤等として、広範な分野で用いることができる。特に、本発明の顔料着色剤は、カラーフィルターのブラックマトリックス用の着色剤として好適である。さらに、本発明の顔料着色剤は、グラビア印刷インキなどの画像記録剤用の材料としても特に有用である。本発明の顔料着色剤を用いれば、高品位な画像を提供しうる画像記録剤用の材料を調製することができる。
(実施例1-1)
水100部に、塩化シアヌル14.8部、4’-アミノアセトアニリド12部、及び酢酸9.6部を加え、0~10℃で1時間反応させた。N,N-ジメチルアミノプロピルアミン24.5部を加えて70~80℃で2時間反応させた後、濃塩酸33部をさらに加えた。90~100℃で1時間反応させて脱アセチル化した後、0~10℃に冷却し、亜硝酸ナトリウム6部を加えてジアゾ化してジアゾニウム塩の溶液を得た。一方、N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部及び水酸化ナトリウム26部をメタノール800部に溶解させて溶液を調製した。調製した溶液にジアゾニウム塩の溶液を加え、20~30℃で5時間カップリング反応させた。ろ過及び水洗した後、乾燥して、下記式(A)で表される青紫色の顔料分散剤(A)49部を得た。
N,N-ジメチルアミノプロピルアミン24.5部に代えて、N,N-ジエチルアミノプロピルアミン31部を用いたこと以外は、前述の実施例1-1と同様にして、下記式(B)で表される青紫色の顔料分散剤(B)53部を得た。
N,N-ジメチルアミノプロピルアミン24.5部に代えて、N,N-ジブチルアミノプロピルアミン45部を用いたこと以外は、前述の実施例1-1と同様にして、下記式(C)で表される青紫色の顔料分散剤(C)61部を得た。
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部に代えて、N-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド31.7部を用いたこと以外は、前述の実施例1-1と同様にして、下記式(D)で表される青紫色の顔料分散剤(D)51部を得た。
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部に代えて、N-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド31.7部を用いたこと、及びN,N-ジメチルアミノプロピルアミン24.5部に代えて、N,N-ジエチルアミノプロピルアミン31部を用いたこと以外は、前述の実施例1-1と同様にして、下記式(E)で表される青紫色の顔料分散剤(E)55部を得た。
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部に代えて、N-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド31.7部を用いたこと、及びN,N-ジメチルアミノプロピルアミン24.5部に代えて、N,N-ジブチルアミノプロピルアミン45部を用いたこと以外は、前述の実施例1-1と同様にして、下記式(F)で表される青紫色の顔料分散剤(F)62部を得た。
(実施例1-7)
[黒色顔料の微細化粉末の調製]
加圧蓋を装着したニーダーに、黒色顔料(黒色アゾ顔料、商品名「クロモファインブラックA1103」、大日精化工業社製)100部、塩化ナトリウム粉末500部、及びジエチレングリコール50部を仕込んだ。均一に湿潤された塊ができるまで予備混合した後、加圧蓋を閉じ、圧力6kg/cm2で押さえ込みながら、92~98℃となるように温度管理しながら内容物を2時間混練及び摩砕した。得られた摩砕物を80℃に加温した水3,000部に入れ、1時間撹拌した後、ろ過及び水洗して塩化ナトリウムとジエチレングリコールを除去し、プレスケーキを得た。得られたプレスケーキにノニオン性界面活性剤(顔料に対して200%の量)を添加するとともに水で希釈した後、超音波分散処理して顔料分散液を調製した。粒度測定機器(商品名「ModelN-4」、コールター社製)を使用して測定した顔料分散液中の微粒子の平均粒子径は、約90nmであった。プレスケーキを乾燥及び粉砕して、黒色顔料の微細化粉末を得た。
黒色顔料の微細化粉末25部、実施例1-1で得た顔料分散剤(A)1.5部、ベンジルメタクリレート/メタクリル酸/2-ヒドロキシエチルメタクリレート共重合体(モル比:60/20/20、重量平均分子量30,000)10部、酸性の高分子顔料分散剤(商品名「DISPERBYK-110」、ビックケミー社製、固形分52%)5部、及びプロピレングリコール-1-モノメチルエーテル-2-アセテート65部を混合した。プレミキシングした後、横型ビーズミルを用いて分散処理し、黒色顔料分散液(実施例1-7)を得た。
顔料分散剤(A)に代えて顔料分散剤(B)~(F)を用いたこと以外は、前述の実施例1-7と同様にして黒色顔料分散液(実施例1-8~1-12)を得た。
顔料分散剤(A)を用いなかったこと以外は、前述の実施例1-7と同様にして黒色顔料分散液(比較例1-1)を得た。
顔料分散剤(A)に代えて、特許文献7に記載のジ(4-メチル-ピペリジノ-1-スルホニル)銅フタロシアニン(顔料分散剤(G))を用いたこと以外は、前述の実施例1-7と同様にして黒色顔料分散液(比較例1-2)を得た。
得られた各黒色顔料分散液について、(1)流動性(貯蔵安定性)、(2)展色面のグロス、及び(3)塗膜中の異物を評価した。評価方法を以下に示す。また、評価結果を表1に示す。
E型粘度計を使用し、調製直後(初期)と、25℃で1ヶ月間放置した後(放置後)の黒色顔料分散液の粘度(mPa・s)を測定した。測定条件は、温度:室温(25℃)、ローターの回転数:6rpmとした。そして、「放置後粘度/初期粘度(%)」を算出し、以下に示す評価基準にしたがって「貯蔵安定性」を評価した。
○:「放置後粘度/初期粘度」が110%以下
×:「放置後粘度/初期粘度」が110%超
バーコーター(巻線の太さ0.45mm)を使用して黒色顔料分散液をポリプロピレンフィルムに展色し、展色面を形成した。形成された展色面のグロスを目視により観察するとともに、グロスメーターを使用して観察し、以下に示す評価基準にしたがって「展色面のグロス」を評価した。なお、展色面のグロスが高いものほど良好であると判定することができる。
◎:非常に良好
○:良好
×:不良
スピンナーを使用して黒色顔料分散液をガラス基板に塗布した。90℃で2分間乾燥後、230℃で30分間加熱して塗膜を形成した。顕微鏡(200倍)を使用して形成された塗膜の表面(塗布面)を観察して異物の有無を確認し、以下に示す評価基準にしたがって「塗膜中の異物」を評価した。
◎:異物なし
○:わずかに異物あり
×:異物あり
(実施例1-13)
(1)感光性黒色レジストインクの調製
実施例1-7で得た黒色顔料分散液40部、アクリル化アクリルポリオール感光性樹脂60%プロピレングリコール-1-モノメチルエーテル-2-アセテート溶液5部、トリメチロールプロパントリアクリレート2部、ジペンタエリスリトールヘキサアクリレート3部、光重合開始剤(エタノン-1-[9-エチル-6-(2-メチルベンゾイル)-9H-カルバゾール-3-イル]-1-(O-アセチルオキシム)、商品名「イルガキュアOXE02」、BASF社製)1部、及びプロピレングリコール-1-モノメチルエーテル-2-アセテート51部を配合した。高速撹拌機を用いて均一になるように十分撹拌した後、孔径3μmのフィルターでろ過して、感光性黒色レジストインクを調製した。
スピンコーターを用いて感光性黒色レジストインクをガラス基板上に塗布した。60℃で予備乾燥した後、プリベークした。超高圧水銀灯を用いて400mJ/cmの光量で露光した後、230℃で30分間ポストベークして、厚さ2μmの黒色塗膜を形成した。形成した黒色塗膜の可視光領域の長波長側から670nm付近までの光の透過率は20%以下であり、780nmの光の透過率は82%に達し、その後、なだらかに上昇して平衡状態となった。特に、580~625nm付近の光の透過率は極めて低く、5%以下であった。また、形成した黒色塗膜の体積抵抗率は1014Ω・cm以上であり、高絶縁性の塗膜であることがわかった。
スピンコーターを用いて感光性黒色レジストインクをガラス基板上に塗布した後、80℃で10分間プリベークして、厚さ2μmの黒色塗膜を形成した。超高圧水銀灯を使用し、BMパターンのネガのフォトマスクパターンを介して100mJ/cmの光量で露光した。アルカリ現像液で現像した後、水洗及び乾燥してBMパターン(BM膜)を形成した。形成したBM膜は高絶縁性の塗膜であることから、例えば、スペーサーの代わり液晶層の厚みを保持するBM膜として用いることができ、IPS方式やCOA方式などの液晶を構築することができる。また、長波長領域までの可視光を十分に吸収するため、LEDバックライトを採用したLCDパネルのBMとして好適に使用することができる。
クロモファインブラックA1103に代えて、PR254(ジケトピロロピロールレッド顔料)、PR177(アントラキノン系レッド顔料)、PG36(銅フタロシアニングリーン顔料)、PB15:6(ε型銅フタロシアニンブルー顔料)、PY185(黄色顔料)、及びPV23(ジオキサジンバイオレット顔料)をそれぞれ用いるとともに、スルホン基を有する公知の顔料誘導体を用いたこと以外は、前述の実施例1-7と同様にして各色の顔料分散液を調製した。
PR254を用いた顔料分散液と、PR177を用いた顔料分散液とを、8:2の比で配合して配合物を得た。黒色顔料分散液に代えて得られた配合物を用いたこと以外は、前述の感光性黒色レジストインクの場合と同様にして、感光性赤色レジストインクを調製した。
BMが形成されたガラス基板をスピンコーターにセットした。調製した感光性赤色レジストインクをガラス基板上にスピンコートした後、80℃で10分間プリベークした。超高圧水銀灯を備えたプロキシミティー露光機を使用し、モザイク状のパターンを有するフォトマスクを介して100mJ/cm2の光量で露光した。専用現像液及び専用リンスを用いて現像及び洗浄した後、乾燥して、モザイク状の赤色のパターンをガラス基板上に形成した。感光性赤色レジストインクに代えて、感光性緑色レジストインク及び感光性青色レジストインクをそれぞれ用いたこと以外は上記と同様にして、モザイク状の緑色のパターン及び青色のパターンを形成した。これにより、BM及びRGB画素が形成されたCFを得た。得られたCFは優れたCF特性を示すものであった。
(実施例1-14)
実施例1-7で得た黒色顔料の微細化粉末10.5部、実施例1-1で得た顔料分散剤(A)0.5部、及びイソシアネート末端ポリエステルをジアミンで鎖長延長したポリウレタン樹脂の40%メチルエチルケトン:トルエン(1:3)混合溶媒溶液30部を混合した。カチオン性ポリマー分散剤2部、トリレンジイソシアネートを用いて得たポリカルボジイミド化合物の40%トルエン溶液2.5部、及びメチルエチルケトン:トルエン:イソプロピルアルコール(50:30:20)混合溶媒54.5部を加えた後、高速撹拌機を使用して十分に混合した。ガラスビーズを分散メディアとする横型連続媒体分散機を使用して顔料を分散させて、黒色のグラビア印刷インキを調製した。グラビア印刷機を使用して、ポリアミドフィルム、ポリエステルフィルム、及びポリプロピレンフィルムに調製したグラビア印刷インキを付与して印刷し、黒色フィルムを得た。得られた黒色フィルムは、いずれも可視光を遮蔽するとともに、近赤外線を十分に透過することが可能なものであった。
(実施例1-15)
実施例1-7で得た黒色顔料の微細化粉末20部、実施例1-1で得た顔料分散剤(A)1部、及びポリカーボネート樹脂粉末80部を、ヘンシェルミキサーを使用して十分混合した。次いで、二軸押出機を使用して混合及び混練し、黒色顔料を20%含有するマスターバッチを得た。得られたマスターバッチ2部及びポリカーボネート樹脂ペレット100部を、ヘンシェルミキサーを使用して混合した後、二軸押出機を使用して混練し、黒色の樹脂ペレットを得た。インラインスクリュー射出成型機を使用して得られた樹脂ペレットを成形し、顔料分散性に優れた黒色のポリカーボネート樹脂成形板(黒色プレート)を得た。得られた黒色プレートは可視光を遮蔽するとともに、近赤外線を十分に透過するものであり、赤外線透過フィルターなどの用途に使用可能なものであった。
(実施例1-16)
実施例1-7で得た黒色顔料の微細化粉末20部、実施例1-1で得た顔料分散剤(A)1部、及びアクリル樹脂(ポリメチルメタクリレート)粉末80部を、ヘンシェルミキサーを使用して十分混合した。次いで、二軸押出混練機を使用して混合及び混練し、黒色顔料を20%含有するマスターバッチを得た。得られたマスターバッチ2部及びアクリル樹脂ペレット100部を、ヘンシェルミキサーを使用して混合した後、押出機を使用して混練し、黒色の樹脂ペレットを得た。インラインスクリュー射出成型機を使用して得られた樹脂ペレットを成形し、顔料分散性に優れた黒色のアクリル樹脂成形板(黒色プレート)を得た。得られた黒色プレートは可視光を遮蔽するとともに、近赤外線を十分に透過するものであり、赤外線透過フィルターなどの用途に使用可能なものであった。
(実施例1-17)
(1)ポリウレタンコーティング剤(液)の調製
実施例1-7で得た黒色顔料の微細化粉末40部、実施例1-1で得た顔料分散剤(A)2部、及びアジピン酸エステル系可塑剤60部を、三本ロール混練機を使用して十分混練し、黒色顔料の可塑剤分散ペースト(黒色顔料トナー)を得た。また、酸化チタン白色顔料60部及びアジピン酸エステル系可塑剤40部を、三本ロール混練機を使用して十分混練し、白色顔料の可塑剤分散ペースト(白色顔料トナー)を得た。一方、カルボキシ基を有するポリエーテルポリオール・ジフェニルメタンジイソシアネート系ポリウレタンのメチルエチルケトン分散液(固形分:30%)100部、ポリエーテルポリオール・ジフェニルメタンジイソシアネート系ポリウレタンのメチルエチルケトン溶液(固形分:50%)5部、及びポリカルボジイミド系架橋剤(固形分:20%)2.5部を十分混合して混合物を得た。得られた混合物に黒色顔料トナー1部及び白色顔料トナー6部を添加した後、十分混合して、灰色(グレー)のポリウレタンコーティング液を調製した。
ナイロン織布テント地の表面に調製したグレーのポリウレタンコーティング液を約200g/m2となるように塗布した後、乾燥して、グレーの加工織布を作製した。作製した加工織布は直射日光の熱線を反射するものであり、昇温を防ぐテントなどの用途に使用することができた。また、調製した白色のポリウレタンコーティング液を下地塗布した後、調製した黒色のポリウレタンコーティング液をトップコートして、二層構造を有するポリウレタン合成皮革を得た。得られた合成皮革は熱線を反射するものであり、自動車の内装などの用途に使用することができた。
(実施例1-18)
実施例1-7で得た黒色顔料の微細化粉末50部、実施例1-1で得た顔料分散剤(A)2.5部、及び滑剤(エチレンビスステアリン酸アミド粉末)50部を、ヘンシェルミキサーを使用して混合し、顔料分50%の粉末着色剤(ドライカラー)を得た。得られたドライカラー1部及びポリプロピレン樹脂ペレット99部を、ヘンシェルミキサーを使用して混合した後、ベント式40m/m押出機を使用して混練し、0.5%黒色顔料を0.5%含有する樹脂ペレットを得た。溶融紡糸機を使用して得られた樹脂ペレットを紡糸し、顔料分散性に優れた繊度10デニールの鮮明な黒色のポリプロピレン繊維(原液着色繊維)を得た。得られた原液着色繊維を用いて作製した織布は直射日光の熱線を反射することが可能なものであり、昇温を避ける日傘やカーテンなどの用途に使用することができた。
(実施例1-19)
実施例1-7で得た黒色顔料の微細化粉末5部、実施例1-1で得た顔料分散剤(A)0.1部、酸化チタン白色顔料20部、及びポリエチレン樹脂粉末75部を、ヘンシェルミキサーを使用して混合し、ドライカラーを得た。得られたドライカラー1部及びポリブチレンテレフタレート(PBT)樹脂ペレット100部を、ヘンシェルミキサーを使用して混合した後、押出機を使用して混練し、黒色の樹脂ペレットを得た。インラインスクリュー射出成型機を使用して得られた樹脂ペレットを成形し、顔料分散性に優れた黒色の樹脂成形板を得た。得られた樹脂成形板は直射日光の熱線を反射することが可能なものであり、昇温を避ける樹脂成形品として使用することができた。
(実施例1-20)
実施例1-7で得た黒色顔料の微細化粉末25部を含むプレスケーキ71部、実施例1-1で得た顔料分散剤(A)1.5部、ノニオン系顔料分散剤10部、消泡剤1部、及び水18部を十分に予備混合した。次いで、ガラスビーズを分散メディアとする横型連続媒体分散機を使用して顔料を分散させて、黒色顔料の高濃度分散液(黒色カラーベース)を調製した。調製した黒色カラーベース20部、反応性アクリル酸アルキルエステルラテックス(固形分40%)25部、消泡剤0.5部、分散剤1部、水中油滴型乳化用分散安定剤3部、ミネラルターペン38部、及び水12.5部を、ホモジナイザー(強力乳化分散機)を使用して乳化分散させ、水中油滴型の黒色エマルジョンペーストを得た。得られた黒色エマルジョンペーストにカルボジイミド系の架橋剤(固形分40%)2部を添加して十分に混合し、黒色捺染糊を得た。ポリエステル-綿混紡布上に得られた黒色捺染糊を全面プリントした後、120℃で15分間キュアーして黒色の無地捺染布を得た。得られた無地捺染布は熱線を反射することが可能なものであった。
(実施例2-1)
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部及び水酸化ナトリウム6.4部をメタノール800部に溶解させて溶液を調製した。一方、o-アミノベンゼンスルホン酸13.9部を常法によりジアゾ化してジアゾニウム塩の溶液を得た。調製した溶液にジアゾニウム塩の溶液を加え、20~30℃で5時間カップリング反応させた。ろ過及び水洗した後、乾燥して、下記式(H)で表される青紫色の顔料分散剤(H)43部を得た。
o-アミノベンゼンスルホン酸13.9部に代えて、m-アミノベンゼンスルホン酸13.9部を用いたこと以外は、前述の実施例2-1と同様にして、下記式(I)で表される青紫色の顔料分散剤(I)42部を得た。
o-アミノベンゼンスルホン酸13.9部に代えて、4-アミノ-1-ナフタレンスルホン酸17.9部を用いたこと以外は、前述の実施例2-1と同様にして、下記式(J)で表される青紫色の顔料分散剤(J)46部を得た。
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部に代えて、N-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド31.7部を用いたこと以外は、前述の実施例2-1と同様にして、下記式(K)で表される青紫色の顔料分散剤(K)44部を得た。
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部に代えて、N-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド31.7部を用いたこと、及びo-アミノベンゼンスルホン酸13.9部に代えて、m-アミノベンゼンスルホン酸13.9部を用いたこと以外は、前述の実施例2-1と同様にして、下記式(L)で表される青紫色の顔料分散剤(L)45部を得た。
N-(4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド30.5部に代えて、N-(2-メチル-4-メトキシフェニル)-2-ヒドロキシ-11H-ベンゾ[a]カルバゾール-3-カルボアミド31.7部を用いたこと、及びo-アミノベンゼンスルホン酸13.9部に代えて、4-アミノ-1-ナフタレンスルホン酸17.9部を用いたこと以外は、前述の実施例2-1と同様にして、下記式(M)で表される青紫色の顔料分散剤(M)48部を得た。
(実施例2-7)
[黒色顔料の微細化粉末の調製]
加圧蓋を装着したニーダーに、黒色顔料(黒色アゾ顔料、商品名「クロモファインブラックA1103」、大日精化工業社製)100部、塩化ナトリウム粉末500部、及びジエチレングリコール50部を仕込んだ。均一に湿潤された塊ができるまで予備混合した後、加圧蓋を閉じ、圧力6kg/cm2で押さえ込みながら、92~98℃となるように温度管理しながら内容物を2時間混練及び摩砕した。得られた摩砕物を80℃に加温した水3,000部に入れ、1時間撹拌した後、ろ過及び水洗して塩化ナトリウムとジエチレングリコールを除去し、プレスケーキを得た。得られたプレスケーキにノニオン性界面活性剤(顔料に対して200%の量)を添加するとともに水で希釈した後、超音波分散処理して顔料分散液を調製した。粒度測定機器(商品名「ModelN-4」、コールター社製)を使用して測定した顔料分散液中の微粒子の平均粒子径は、約90nmであった。プレスケーキを乾燥及び粉砕して、黒色顔料の微細化粉末を得た。
黒色顔料の微細化粉末25部、実施例2-1で得た顔料分散剤(H)1.5部、ベンジルメタクリレート/メタクリル酸/2-ヒドロキシエチルメタクリレート共重合体(モル比:60/20/20、重量平均分子量30,000)10部、塩基性の高分子分散剤(商品名「DISPERBYK-2001」、ビックケミー社製、固形分46%)5.5部及びプロピレングリコール-1-モノメチルエーテル-2-アセテート65部を混合した。プレミキシングした後、横型ビーズミルを用いて分散処理し、黒色顔料分散液(実施例2-7)を得た。
顔料分散剤(H)に代えて顔料分散剤(I)~(M)を用いたこと以外は、前述の実施例2-7と同様にして黒色顔料分散液(実施例2-8~2-12)を得た。
顔料分散剤(H)を用いなかったこと以外は、前述の実施例2-7と同様にして黒色顔料分散液(比較例2-1)を得た。
顔料分散剤(H)に代えて、顔料分散剤(N)(フタロシアニンスルホン化物(商品名「SOLSPERS-12000」、Lubrizol社製))を用いたこと以外は、前述の実施例2-7と同様にして黒色顔料分散液(比較例2-2)を得た。
得られた各黒色顔料分散液について、(1)流動性(貯蔵安定性)、(2)展色面のグロス、及び(3)塗膜中の異物を評価した。評価方法を以下に示す。また、評価結果を表2に示す。
E型粘度計を使用し、調製直後(初期)と、25℃で1ヶ月間放置した後(放置後)の黒色顔料分散液の粘度(mPa・s)を測定した。測定条件は、温度:室温(25℃)、ローターの回転数:6rpmとした。そして、「放置後粘度/初期粘度(%)」を算出し、以下に示す基準にしたがって「貯蔵安定性」を評価した。
○:「放置後粘度/初期粘度」が110%以下
×:「放置後粘度/初期粘度」が110%超
バーコーター(巻線の太さ0.45mm)を使用して黒色顔料分散液をポリプロピレンフィルムに展色し、展色面を形成した。形成された展色面のグロスを目視により観察するとともに、グロスメーターを使用して観察し、以下に示す基準にしたがって「展色面のグロス」を評価した。なお、展色面のグロスが高いものほど良好であると判定することができる。
◎:非常に良好
○:良好
×:不良
スピンナーを使用して黒色顔料分散液をガラス基板に塗布した。90℃で2分間乾燥後、230℃で30分間加熱して塗膜を形成した。顕微鏡(200倍)を使用して形成された塗膜の表面(塗布面)を観察して異物の有無を確認し、以下に示す基準にしたがって「塗膜中の異物」を評価した。
◎:異物なし
○:わずかに異物あり
×:異物あり
(実施例2-13)
(1)感光性黒色レジストインクの調製
実施例2-7で得た黒色顔料分散液40部、アクリル化アクリルポリオール感光性樹脂60%プロピレングリコール-1-モノメチルエーテル-2-アセテート溶液5部、トリメチロールプロパントリアクリレート2部、ジペンタエリスリトールヘキサアクリレート3部、光重合開始剤(エタノン-1-[9-エチル-6-(2-メチルベンゾイル)-9H-カルバゾール-3-イル]-1-(O-アセチルオキシム)、商品名「イルガキュアOXE02」、BASF社製)1部、及びプロピレングリコール-1-モノメチルエーテル-2-アセテート51部を配合した。高速撹拌機を用いて均一になるように十分撹拌した後、孔径3μmのフィルターでろ過して、感光性黒色レジストインクを調製した。
スピンコーターを用いて感光性黒色レジストインクをガラス基板上に塗布した。60℃で予備乾燥した後、プリベークした。超高圧水銀灯を用いて400mJ/cmの光量で露光した後、230℃で30分間ポストベークして、厚さ2μmの黒色塗膜を形成した。形成した黒色塗膜の可視光領域の長波長側から670nm付近までの光の透過率は20%以下であり、780nmの光の透過率は82%に達し、その後、なだらかに上昇して平衡状態となった。特に、580~625nm付近の光の透過率は極めて低く、5%以下であった。また、形成した黒色塗膜の体積抵抗率は1014Ω・cm以上であり、高絶縁性の塗膜であることがわかった。
スピンコーターを用いて感光性黒色レジストインクをガラス基板上に塗布した後、80℃で10分間プリベークして、厚さ2μmの黒色塗膜を形成した。超高圧水銀灯を使用し、BMパターンのネガのフォトマスクパターンを介して100mJ/cmの光量で露光した。アルカリ現像液で現像した後、水洗及び乾燥してBMパターン(BM膜)を形成した。形成したBM膜は高絶縁性の塗膜であることから、例えば、スペーサーの代わり液晶層の厚みを保持するBM膜として用いることができ、IPS方式やCOA方式などの液晶を構築することができる。また、長波長領域までの可視光を十分に吸収するため、LEDバックライトを採用したLCDパネルのBMとして好適に使用することができる。
クロモファインブラックA1103に代えて、PR254(ジケトピロロピロールレッド顔料)、PR177(アントラキノン系レッド顔料)、PG36(銅フタロシアニングリーン顔料)、PB15:6(ε型銅フタロシアニンブルー顔料)、PY185(黄色顔料)、及びPV23(ジオキサジンバイオレット顔料)をそれぞれ用いるとともに、スルホン基を有する公知の顔料誘導体を用いたこと以外は、前述の実施例2-7と同様にして各色の顔料分散液を調製した。
PR254を用いた顔料分散液と、PR177を用いた顔料分散液とを、8:2の比で配合して配合物を得た。黒色顔料分散液に代えて得られた配合物を用いたこと以外は、前述の感光性黒色レジストインクの場合と同様にして、感光性赤色レジストインクを調製した。
BMが形成されたガラス基板をスピンコーターにセットした。調製した感光性赤色レジストインクをガラス基板上にスピンコートした後、80℃で10分間プリベークした。超高圧水銀灯を備えたプロキシミティー露光機を使用し、モザイク状のパターンを有するフォトマスクを介して100mJ/cm2の光量で露光した。専用現像液及び専用リンスを用いて現像及び洗浄した後、乾燥して、モザイク状の赤色のパターンをガラス基板上に形成した。感光性赤色レジストインクに代えて、感光性緑色レジストインク及び感光性青色レジストインクをそれぞれ用いたこと以外は上記と同様にして、モザイク状の緑色のパターン及び青色のパターンを形成した。これにより、BM及びRGB画素が形成されたCFを得た。得られたCFは優れたCF特性を示すものであった。
(実施例2-14)
実施例2-7で得た黒色顔料の微細化粉末10.5部、実施例2-1で得た顔料分散剤(H)0.5部、及びイソシアネート末端ポリエステルをジアミンで鎖長延長したポリウレタン樹脂の40%メチルエチルケトン:トルエン(1:3)混合溶媒溶液30部を混合した。カチオン性ポリマー分散剤2部、トリレンジイソシアネートを用いて得たポリカルボジイミド化合物の40%トルエン溶液2.5部、及びメチルエチルケトン:トルエン:イソプロピルアルコール(50:30:20)混合溶媒54.5部を加えた後、高速撹拌機を使用して十分に混合した。ガラスビーズを分散メディアとする横型連続媒体分散機を使用して顔料を分散させて、黒色のグラビア印刷インキを調製した。グラビア印刷機を使用して、ポリアミドフィルム、ポリエステルフィルム、及びポリプロピレンフィルムに調製したグラビア印刷インキを付与して印刷し、黒色フィルムを得た。得られた黒色フィルムは、いずれも可視光を遮蔽するとともに、近赤外線を十分に透過することが可能なものであった。
(実施例2-15)
実施例2-7で得た黒色顔料の微細化粉末20部、実施例2-1で得た顔料分散剤(H)1部、及びポリカーボネート樹脂粉末80部を、ヘンシェルミキサーを使用して十分混合した。次いで、二軸押出機を使用して混合及び混練し、黒色顔料を20%含有するマスターバッチを得た。得られたマスターバッチ2部及びポリカーボネート樹脂ペレット100部を、ヘンシェルミキサーを使用して混合した後、二軸押出機を使用して混練し、黒色の樹脂ペレットを得た。インラインスクリュー射出成型機を使用して得られた樹脂ペレットを成形し、顔料分散性に優れた黒色のポリカーボネート樹脂成形板(黒色プレート)を得た。得られた黒色プレートは可視光を遮蔽するとともに、近赤外線を十分に透過するものであり、赤外線透過フィルターなどの用途に使用可能なものであった。
(実施例2-16)
実施例2-7で得た黒色顔料の微細化粉末20部、実施例2-1で得た顔料分散剤(H)1部、及びアクリル樹脂(ポリメチルメタクリレート)粉末80部を、ヘンシェルミキサーを使用して十分混合した。次いで、二軸押出混練機を使用して混合及び混練し、黒色顔料を20%含有するマスターバッチを得た。得られたマスターバッチ2部及びアクリル樹脂ペレット100部を、ヘンシェルミキサーを使用して混合した後、押出機を使用して混練し、黒色の樹脂ペレットを得た。インラインスクリュー射出成型機を使用して得られた樹脂ペレットを成形し、顔料分散性に優れた黒色のアクリル樹脂成形板(黒色プレート)を得た。得られた黒色プレートは可視光を遮蔽するとともに、近赤外線を十分に透過するものであり、赤外線透過フィルターなどの用途に使用可能なものであった。
(実施例2-17)
(1)ポリウレタンコーティング剤(液)の調製
実施例2-7で得た黒色顔料の微細化粉末40部、実施例2-1で得た顔料分散剤(H)2部、及びアジピン酸エステル系可塑剤60部を、三本ロール混練機を使用して十分混練し、黒色顔料の可塑剤分散ペースト(黒色顔料トナー)を得た。また、酸化チタン白色顔料60部及びアジピン酸エステル系可塑剤40部を、三本ロール混練機を使用して十分混練し、白色顔料の可塑剤分散ペースト(白色顔料トナー)を得た。一方、カルボキシ基を有するポリエーテルポリオール・ジフェニルメタンジイソシアネート系ポリウレタンのメチルエチルケトン分散液(固形分:30%)100部、ポリエーテルポリオール・ジフェニルメタンジイソシアネート系ポリウレタンのメチルエチルケトン溶液(固形分:50%)5部、及びポリカルボジイミド系架橋剤(固形分:20%)2.5部を十分混合して混合物を得た。得られた混合物に黒色顔料トナー1部及び白色顔料トナー6部を添加した後、十分混合して、灰色(グレー)のポリウレタンコーティング液を調製した。
ナイロン織布テント地の表面に調製したグレーのポリウレタンコーティング液を約200g/m2となるように塗布した後、乾燥して、グレーの加工織布を作製した。作製した加工織布は直射日光の熱線を反射するものであり、昇温を防ぐテントなどの用途に使用することができた。また、調製した白色のポリウレタンコーティング液を下地塗布した後、調製した黒色のポリウレタンコーティング液をトップコートして、二層構造を有するポリウレタン合成皮革を得た。得られた合成皮革は熱線を反射するものであり、自動車の内装などの用途に使用することができた。
(実施例2-18)
実施例2-7で得た黒色顔料の微細化粉末50部、実施例2-1で得た顔料分散剤(H)2.5部、及び滑剤(エチレンビスステアリン酸アミド粉末)50部を、ヘンシェルミキサーを使用して混合し、顔料分50%の粉末着色剤(ドライカラー)を得た。得られたドライカラー1部及びポリプロピレン樹脂ペレット99部を、ヘンシェルミキサーを使用して混合した後、ベント式40m/m押出機を使用して混練し、0.5%黒色顔料を0.5%含有する樹脂ペレットを得た。熔融紡糸機を使用して得られた樹脂ペレットを紡糸し、顔料分散性に優れた繊度10デニールの鮮明な黒色のポリプロピレン繊維(原液着色繊維)を得た。得られた原液着色繊維を用いて作製した織布は直射日光の熱線を反射することが可能なものであり、昇温を避ける日傘やカーテンなどの用途に使用することができた。
(実施例2-19)
実施例2-7で得た黒色顔料の微細化粉末5部、実施例2-1で得た顔料分散剤(H)0.1部、酸化チタン白色顔料20部、及びポリエチレン樹脂粉末75部を、ヘンシェルミキサーを使用して混合し、ドライカラーを得た。得られたドライカラー1部及びポリブチレンテレフタレート(PBT)樹脂ペレット100部を、ヘンシェルミキサーを使用して混合した後、押出機を使用して混練し、黒色の樹脂ペレットを得た。インラインスクリュー射出成型機を使用して得られた樹脂ペレットを成形し、顔料分散性に優れた黒色の樹脂成形板を得た。得られた樹脂成形板は直射日光の熱線を反射することが可能なものであり、昇温を避ける樹脂成形品として使用することができた。
(実施例2-20)
実施例2-7で得た黒色顔料の微細化粉末25部を含むプレスケーキ71部、実施例2-1で得た顔料分散剤(H)1.5部、ノニオン系顔料分散剤10部、消泡剤1部、及び水18部を十分に予備混合した。次いで、ガラスビーズを分散メディアとする横型連続媒体分散機を使用して顔料を分散させて、黒色顔料の高濃度分散液(黒色カラーベース)を調製した。調製した黒色カラーベース20部、反応性アクリル酸アルキルエステルラテックス(固形分40%)25部、消泡剤0.5部、分散剤1部、水中油滴型乳化用分散安定剤3部、ミネラルターペン38部、及び水12.5部を、ホモジナイザー(強力乳化分散機)を使用して乳化分散させ、水中油滴型の黒色エマルジョンペーストを得た。得られた黒色エマルジョンペーストにカルボジイミド系の架橋剤(固形分40%)2部を添加して十分に混合し、黒色捺染糊を得た。ポリエステル-綿混紡布上に得られた黒色捺染糊を全面プリントした後、120℃で15分間キュアーして黒色の無地捺染布を得た。得られた無地捺染布は熱線を反射することが可能なものであった。
Claims (8)
- 顔料と、請求項1~4のいずれか一項に記載の顔料分散剤と、を含有する顔料組成物。
- 前記顔料100質量部に対する、前記顔料分散剤の含有量が、0.5~40質量部である請求項5に記載の顔料組成物。
- 請求項5又は6に記載の顔料組成物と、皮膜形成材料と、を含有する顔料着色剤。
- 画像表示用、画像記録用、グラビア印刷インキ用、筆記用インキ用、プラスチック用、顔料捺染用、塗料用、又はカラーフィルターのブラックマトリックス用である請求項7に記載の顔料着色剤。
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