CN114384755A - Black pigment dispersions - Google Patents

Black pigment dispersions Download PDF

Info

Publication number
CN114384755A
CN114384755A CN202111149600.0A CN202111149600A CN114384755A CN 114384755 A CN114384755 A CN 114384755A CN 202111149600 A CN202111149600 A CN 202111149600A CN 114384755 A CN114384755 A CN 114384755A
Authority
CN
China
Prior art keywords
black
dispersant
black pigment
monomer
mass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111149600.0A
Other languages
Chinese (zh)
Inventor
野泽贵博
山本卓哉
片山和也
梶村裕人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gifu Shellac Manufacturing Co Ltd
Original Assignee
Gifu Shellac Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gifu Shellac Manufacturing Co Ltd filed Critical Gifu Shellac Manufacturing Co Ltd
Publication of CN114384755A publication Critical patent/CN114384755A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • 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
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084—Dispersions of dyes
    • 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
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084—Dispersions of dyes
    • C09B67/0085—Non common dispersing agents
    • C09B67/009—Non common dispersing agents polymeric dispersing agent
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A black pigment dispersion which, when a pigment dispersion containing a lactam black is prepared, prevents the dispersion from gelling and prevents the viscosity of the dispersion from changing during storage, thereby improving the dispersibility. A copolymer comprising a monomer A having a structure of formula 1 as a dispersant, a monomer B having a nitrogen-containing aromatic heterocyclic group as a basic functional group, and a monomer C polymerizable with the monomer A and the monomer B is used in combination with lactam black. The content of the lactam black is 5 to 25 mass%. The average particle diameter of the lactam black is preferably adjusted to 200nm or less.

Description

Black pigment dispersions
Technical Field
The present invention relates to a black pigment dispersion containing a lactam black and having excellent dispersibility.
Background
The backlight used in the liquid crystal display is currently widely used in mobile phone terminals, televisions, and the like because of the characteristics of high resolution, low cost, thin host computer specification (form factor), and the like.
Recently, in order to cope with the further improvement in precision and luminance of Color liquid crystal displays, in the field of active matrix liquid crystal displays, a Color filter On Array (COA) system in which a Color filter is provided On a TFT element substrate side, and a Black matrix On Array (BOA) system in which only a Black matrix is provided On a TFT element substrate side have been proposed. According to this aspect, compared to the case where the black matrix is formed on the color filter side, there is no need to leave a space for alignment with the active element side, and therefore the aperture ratio can be increased, and as a result, high luminance can be achieved.
In the case of such a configuration, the black matrix is required to have a black coloring agent having a volume resistivity of not less than a predetermined value and a relative permittivity of not more than a predetermined value so as not to cause a short circuit even when directly mounted on the TFT element. As such a black matrix, a black matrix using a plurality of organic coloring pigments and carbon black as a pigment has been proposed (patent document 1).
Further, a photosensitive composition for a black matrix using an organic black pigment as a pigment is known, and specifically, a photosensitive composition using aniline black (patent document 2) or Perylene black (patent document 3) is known.
Patent document 4 discloses a lactam black dispersion containing a lactam black (black pigment having a lactam structure) having a particle diameter of 314 to 551nm and a specific dispersant as a lactam black dispersion for an electrophoretic display (table 1).
Patent document 5 discloses a black pigment dispersion composition containing a lactam black, a violet pigment, a blue pigment and/or a green pigment, and carbon black, which is used for a liquid crystal display device, a solid-state imaging device, an infrared sensor, and the like, and a black resist composition containing the same.
Patent document 6 discloses a colored photosensitive resin composition for forming a separator of an organic electroluminescent element, such as Irgaphor (registered trademark) Black S0100CF, which is lactam Black, containing an organic Black pigment, an acrylic dispersant, an epoxy (meth) acrylate resin, a photopolymerizable monomer, and a photopolymerization initiator.
Prior art documents:
patent documents:
patent document 1: japanese patent laid-open publication No. 2009-75446;
patent document 2: japanese patent laid-open publication No. 8-44049;
patent document 3: japanese patent laid-open publication No. 2006-235153;
patent document 4: japanese Kohyo publication No. 2012-515240;
patent document 5: japanese patent laid-open publication Nos. 2019-81857;
patent document 6: international publication No. 2018/101314.
Disclosure of Invention
The problems to be solved by the invention are as follows:
lactam black is a black pigment having advantages such as high infrared and ultraviolet transmittances, high insulation properties, and low permittivity, but has a disadvantage that dispersibility is poor when used as a pigment dispersion. That is, when a pigment dispersion containing a lactam black is prepared, there is a problem that the dispersion is gelled and the viscosity of the dispersion changes during storage.
Means for solving the problems:
the present inventors have made extensive studies to solve the above problems and have found that when a lactam black is used as a black pigment in a pigment dispersion, the dispersibility of the lactam black is improved by using the lactam black in combination with a specific dispersant at a specific ratio, and have completed the present invention.
Specifically, the present invention relates to a black pigment dispersion,
is a black pigment dispersion containing at least a black pigment, a dispersant and a solvent;
the black pigment is lactam black;
the dispersant is a copolymer consisting of:
a monomer a having a structure of chemical formula 1;
a monomer B having a nitrogen-containing aromatic heterocyclic group as a basic functional group; and
a monomer C capable of polymerizing with the monomer A and the monomer B.
[ chemical formula 1 ]
CH2=C(R1)COO(CH2CH2O)nR2 is seeded, seeded or chemical formula 1.
(wherein R1 is hydrogen or methyl; R2 is C1-C8 alkyl; n = 4-23.).
The black pigment dispersion of the present invention is preferably such that the average particle diameter (cumulative average particle diameter) of the lactam black is 200nm or less, preferably 160nm or less, because the dispersibility of the lactam black is excellent. The black pigment dispersion of the present invention does not gel during preparation, and the viscosity change during storage is small.
The content of the black pigment is preferably 5% by mass or more and 25% by mass or less. When the content is less than 5% by mass, the coloring may be insufficient due to a low pigment concentration, and when the content exceeds 25% by mass, the viscosity becomes high, so that the handleability is liable to be deteriorated.
The black pigment dispersion of the present invention may further contain a derivative having an acidic group as a pigment derivative, for example, a derivative obtained by introducing an acidic group into a quinophthalone skeleton. By containing such a pigment derivative, the effect of further reducing the particle size and reducing the necessary amount of the dispersant can be obtained.
The black pigment dispersion of the present invention may further contain an acrylic resin having an acidic group, a polyester resin, and a resin having a cardo structure. The inclusion of such a resin has the effect of improving the development property and the adhesion property.
The black pigment dispersion of the present invention may further contain an auxiliary component such as a viscosity modifier.
The invention has the following effects:
the black pigment dispersion of the present invention is excellent in dispersibility of the lactam black, does not gel during preparation, and is less likely to change in viscosity during storage.
Detailed Description
The following describes embodiments of the present invention.
(Black pigment)
Examples of the lactam Black include Black 582 manufactured by BASF corporation and Black S0100CF (registered trademark) of Irgaphor (registered trademark).
(dispersing agent)
As the monomer A, a monomer belonging to the photo-acrylic acid ester series manufactured by Kyoeisha chemical Co., Ltd, or the New Frontier series manufactured by the first Industrial pharmaceutical Co., Ltd can be used.
Specific examples of the monomer B include 4-vinylpyridine and 2-vinylpyridine.
The monomer C is preferably a nonionic monomer from the viewpoint of not affecting the dispersibility of the pigment. The nonionic monomer is preferably an alkyl (meth) acrylate such as methyl methacrylate or butyl methacrylate.
The content of the monomers A to C in the dispersant may be suitably changed so that the total of the monomers A, B, C and C is 20 to 60 parts by mass, 10 to 40 parts by mass and 20 to 60 parts by mass, respectively, and the total of the monomers C and A to C is 100 parts by mass.
The acid value and amine value of the dispersant as the block copolymer of monomers A to C are determined by the functional group contained in the block copolymer and the content thereof. The acid number (acid number after conversion of the solid content) can be determined, for example, by the method in accordance with DIN EN ISO 2114, and the amine number (amine number after conversion of the solid content) can be determined, for example, by the method in accordance with DIN 16945. The acid value of the dispersant is preferably 1 mgKOH/g or less. The amine value of the dispersant is more preferably 50mgKOH/g or more and 200mgKOH/g or less.
(solvent)
Examples of the solvent include various organic solvents such as aromatic, ketone, ester, glycol ether, alcohol, and aliphatic solvents. The organic solvent may be only 1 kind or a combination of 2 or more kinds.
Examples of the aromatic organic solvent include aromatic hydrocarbons such as toluene, xylene, and ethylbenzene.
Examples of the ketone-based organic solvent include methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, acetylacetone, isophorone, acetophenone, and cyclohexanone.
Examples of the ester-based organic solvent include ethyl acetate, n-butyl acetate, isobutyl acetate, isopropyl acetate, methyl propionate, 3-methoxybutyl acetate, ethylene glycol acetate, propylene glycol monomethyl ether acetate (PMA), propylene glycol ethyl ether acetate, 3-methyl-3-methoxybutyl acetate, methyl chloroacetate, ethyl chloroacetate, butyl chloroacetate, methyl acetoacetate, ethyl acetoacetate, butyl carbitol acetate, butyl lactate, ethyl-3-ethoxyethyl propionate, ethylene glycol monobutyl ether acetate, ethylene glycol monomethyl ether acetate, propyl acetate, and 1, 3-butanediol diacetate.
Examples of the glycol ether-based organic solvent include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-propyl ether, ethylene glycol mono-iso-propyl ether, diethylene glycol mono-iso-propyl ether, ethylene glycol mono-n-dibutyl ether, diethylene glycol mono-n-dibutyl ether, triethylene glycol mono-n-dibutyl ether, ethylene glycol mono-t-dibutyl ether, diethylene glycol mono-t-dibutyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono-t-dibutyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-iso-propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propyl ether, water-soluble glycol ethers such as dipropylene glycol mono-iso-propyl ether, propylene glycol mono-n-dibutyl ether, and dipropylene glycol mono-n-dibutyl ether; and water-insoluble glycol ethers such as ethylene glycol monohexyl ether, ethylene glycol-2-ethylhexanoic acid ether, ethylene glycol diphenyl ether, diethylene glycol-n-hexylethyl ether, diethylene glycol-2-ethylhexanoic acid ether, propylene glycol monobutyl ethyl ether, dipropylene glycol propyl ether, and propylene glycol methyl propionate.
Examples of the alcohol-based organic solvent include alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol, and isopropanol; ethylene glycol, propylene glycol, diethylene glycol, 1, 5-pentylene glycol, propylene glycol, 2-butene-1, 4-diol, 2-ethyl-1, 3-hexanediol, 2-methyl-2, 4-pentanediol, tripropylene glycol, polyethylene glycol having a molecular weight of 2000 or less, 1, 3-propanediol, isopropylene glycol, isobutylene glycol, 1, 4-butanediol, 1, 3-butanediol, 1, 5-pentanediol, 1, 6-hexanediol, glycerol, erythrol, pentaerythritol, and the like.
Examples of the aliphatic organic solvent include aliphatic hydrocarbons such as n-pentane, n-hexane, and n-heptane.
The content of the solvent is preferably adjusted to 6 to 40% by weight of the solid content concentration of the pigment or the like, from the viewpoint of easy handling.
< preparation example of Black pigment composition >
A black pigment dispersion was produced from the following raw materials and a production method.
(Black pigment)
Irgaphor (registered trademark) Black S0100CF (BASF corporation) was used as the lactam Black.
(solvent)
Propylene glycol monomethyl ether acetate (PMA) was used as the solvent.
(dispersing agent)
The dispersants I to VI described below were used as the dispersants. The amine number, Mp (peak molecular weight), Mw/Mn (ratio of weight average molecular weight to number average molecular weight), NV (solid or non-volatile amount), and the combination of monomers (the number indicates the mass ratio of the monomers) constituting each dispersant are shown in table 1. In table 1, the structures indicated by the abbreviations in the monomer combination columns are shown in table 2.
[ TABLE 1 ]
Figure 860424DEST_PATH_IMAGE002
。
[ TABLE 2 ]
Figure 715248DEST_PATH_IMAGE003
。
(method for producing dispersant I)
A2L capacity stainless steel separation flask was prepared by extracting 287.3 mass parts of Methyl Methacrylate (MMA), 0.6 mass part of Butyl Methacrylate (BMA), 142.4 mass parts of methoxypolyethylene glycol methyl methacrylate (MPEG 9 MA), 15 mass parts of N- (tert-butyl) -N- (1-diethylphosphono-2, 2-dimethylpropyl) -O- (2-carboxypropyl-2-yl) hydroxylamine (manufactured by Arkema, product name BlocBuilder MA), 436 mass parts of propylene glycol monomethyl ether acetate (PMA) and 218 mass parts of propylene glycol monomethyl ether (PM). The flask was heated to 125 ℃ by an oil bath with stirring while bubbling nitrogen gas, and reacted for 4 hours.
Then, 199.7 parts by mass of 4-vinylpyridine (4 VPy), 196 parts by mass of PMA, and 98 parts by mass of PM were put into a flask, and the mixture was stirred while bubbling nitrogen gas therethrough, followed by a reaction at 125 ℃ for 4 hours.
The solids content of the reaction mixture was 40.5% by weight. The obtained block copolymer was subjected to GPC (gel permeation chromatography), and the peak molecular weight was 11500 and Mw/Mn was 1.24. The amine value (solid content) was 168.6 mgKOH/g.
The block copolymer (dispersant I) thus obtained had: a block having a constituent unit derived from MMA (monomer C), a constituent unit derived from BMA (monomer C), a constituent unit derived from MPEG9MA (monomer a), and a block having a constituent unit derived from 4VPy (monomer B) as a basic group-containing unit. That is, the dispersant I is a linear block polymer having a block composed of units containing basic groups at one end thereof. The dispersant I has no acidic groups in the monomer composition. The mass ratio of each constituent unit of dispersant I (MMA/BMA/MPEG 9MA/4 VPy) was 45.6/0.1/22.6/31.7.
(production of dispersant II)
Dispersant II was prepared in the same manner as dispersant I except that DM was used instead of 4 VPy. The mass ratio of each constituent unit of dispersant II (MMA/BMA/MPEG 9 MA/DM) was 35.1/0.1/17.4/47.4.
(production of dispersant III)
Dispersant III was prepared in the same manner as dispersant I, except that DE was used instead of 4 VPy. The mass ratio of the constituent units of dispersant III (MMA/BMA/MPEG 9 MA/DE) was 29.4/0.1/14.6/55.9.
(production of dispersant IV)
Dispersant IV was produced in the same manner as dispersant I except that DMAPAA was used instead of 4 VPy. The mass ratio of each constituent unit of dispersant IV (MMA/BMA/MPEG 9 MA/DMAPAA) was 35.3/0.1/17.5/47.1.
(preparation of dispersant V)
Dispersant V was produced in the same manner as dispersant I except that DMAPMA was used instead of 4 VPy. The mass ratio of each constituent unit of the dispersant V (MMA/BMA/MPEG 9 MA/DMAPMA) was 32.5/0.1/16.1/51.3.
(preparation of dispersant VI)
Dispersant VI was produced in the same manner as dispersant I except that PMPMPMMA was used instead of 4 VPy. The mass ratio of the constituent units of dispersant VI (MMA/BMA/MPEG 9 MA/PMPMPMMA) was 38.2/0.1/18.9/42.8.
[ examples ]
12 parts by mass of lactam black, 7.2 parts by mass of dispersant I in terms of solid content as a dispersant, and PMA as a solvent were extracted from a polyethylene container. The amount of PMA was adjusted so that "lactam black + dispersant + solvent" was 100 parts by mass. A300 mass part of zirconia balls (. phi.0.3 mm) was put into a container and subjected to a dispersion treatment for 90 minutes by means of a paint shaker manufactured by Kutzenkou Co., Ltd to obtain a black pigment dispersion (a lactam black concentration of 12 mass% and a dispersant concentration of 7.2 mass%) of example.
Comparative example 1
A black pigment dispersion of comparative example 1 was obtained in the same manner as in example except that 7.2 parts by mass of the dispersant II in terms of solid content was used as the dispersant. In each of the black pigment dispersions of comparative examples 1 to 5, the concentration of lactam black was 12 mass% and the concentration of the dispersant was 7.2 mass%.
Comparative example 2
A black pigment dispersion of comparative example 2 was obtained in the same manner as in example except that 7.2 parts by mass of the dispersant III in terms of solid content was used as the dispersant.
Comparative example 3
A black pigment dispersion of comparative example 3 was obtained in the same manner as in example except that 7.2 parts by mass of the dispersant IV in terms of solid content was used as the dispersant.
Comparative example 4
A black pigment dispersion of comparative example 4 was obtained in the same manner as in example except that 7.2 parts by mass of the dispersant V in terms of solid content was used as the dispersant.
Comparative example 5
A black pigment dispersion of comparative example 5 was obtained in the same manner as in example except that 7.2 parts by mass of the dispersant VI in terms of solid content was used as the dispersant.
< measurement of particle size of lactam Black >
The black pigment dispersions of examples and comparative examples 1 to 5 were diluted with PMA to a concentration of 0.001 to 10% by mass, and then measured for an average particle diameter (cumulative average particle diameter; average particle diameter obtained by cumulative analysis) using FPAR-1000 manufactured by Otsuka Denshi Co. The average particle size was measured immediately after preparation and storage in a 40 ℃ incubator for 1 week.
< measurement of viscosity of Black pigment Dispersion >
The viscosity (25 ℃) of the black pigment dispersions of examples and comparative examples 1 to 5 immediately after preparation and storage in a constant temperature storage at 40 ℃ for 1 week was measured by an E-type viscometer (TV-22) manufactured by Toyobo industries Ltd.
The results of measuring the average particle diameter and viscosity of the black pigment dispersions of examples and comparative examples 1 to 5 are shown in table 3.
[ TABLE 3 ]
Figure DEST_PATH_IMAGE005
。
The black pigment dispersions other than those of examples gelled during the preparation, and the average particle size of the lactam black and the viscosity of the dispersion could not be measured.
The average particle diameters of the black pigments of the black pigment dispersions of examples were 148nm and 146nm, and were almost unchanged. The initial viscosity was 5.06mPa ･ s, and the viscosity after storage at 40 ℃ was 5.22 mPa ･ s, and the viscosity was almost unchanged (the viscosity change rate was 5.22/5.06= 1.03).
As shown in table 3, it was confirmed that the dispersion using the lactam black as the black pigment gelled during preparation depending on the kind of the dispersant used, but when combined with a dispersant which is a copolymer of monomers a to C, the average particle diameter and viscosity of the lactam black hardly changed even during storage.
When the content (concentration) of the lactam black in the black pigment dispersion is 5 mass% or more and 25 mass% or less, the average particle diameter and viscosity of the lactam black are less likely to change during storage, as in the case of the black pigment dispersion of the example.
The average particle diameter of the lactam black is preferably 200nm or less, more preferably 160nm or less, from the viewpoint of optical density and surface smoothness.
The black pigment dispersion preferably has a viscosity change rate (viscosity after storage for 1 week in a 40 ℃ constant temperature storage/viscosity immediately after preparation (25 ℃) of 0.8 to 1.2 times, and more preferably 0.9 to 1.1 times.
Industrial applicability:
the black pigment dispersion of the present invention is useful in the technical fields of displays, solid-state imaging devices, infrared sensors, and the like.

Claims (3)

1. A black pigment dispersion characterized by containing, as a main component,
a black pigment dispersion containing at least a black pigment, a dispersant and a solvent;
the black pigment is lactam black;
the dispersant is a copolymer consisting of:
a monomer a having a structure of chemical formula 1;
a monomer B having a nitrogen-containing aromatic heterocyclic group as a basic functional group; and
a monomer C polymerizable with said A and said B;
[ chemical formula 1 ]
CH2=C(R1)COO(CH2CH2O)nR2 seeds, both new and old, chemical formula 1;
wherein R1 is hydrogen or methyl; r2 is an alkyl group having 1 to 8 carbon atoms; n =4 ~ 23.
2. The black pigment dispersion according to claim 1,
the average particle diameter of the lactam black is less than or equal to 200 nm.
3. The black pigment dispersion according to claim 1 or 2,
the content of the black pigment is 5 to 25 mass%.
CN202111149600.0A 2020-10-16 2021-09-29 Black pigment dispersions Pending CN114384755A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-174752 2020-10-16
JP2020174752A JP2022065931A (en) 2020-10-16 2020-10-16 Black pigment dispersion

Publications (1)

Publication Number Publication Date
CN114384755A true CN114384755A (en) 2022-04-22

Family

ID=81194662

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111149600.0A Pending CN114384755A (en) 2020-10-16 2021-09-29 Black pigment dispersions

Country Status (3)

Country Link
JP (1) JP2022065931A (en)
KR (1) KR20220050770A (en)
CN (1) CN114384755A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102676031B1 (en) * 2023-12-13 2024-06-19 (주)켐이 Non-solvent photocurable composition for infrared transmission

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0844049A (en) 1994-08-01 1996-02-16 Sekisui Chem Co Ltd Colored resist film
JP4794870B2 (en) 2005-02-24 2011-10-19 東京応化工業株式会社 Photosensitive resin composition for forming light shielding layer, light shielding layer and color filter
JP2009075446A (en) 2007-09-21 2009-04-09 Mitsubishi Chemicals Corp Resin black matrix, light shielding photosensitive resin composition and liquid crystal display
KR101704076B1 (en) 2009-01-19 2017-02-07 바스프 에스이 Black pigment dispersion
JP6451918B2 (en) 2016-12-02 2019-01-16 三菱ケミカル株式会社 Colored photosensitive resin composition, pigment dispersion, partition, organic electroluminescent device, image display device and illumination
JP7080618B2 (en) 2017-10-31 2022-06-06 サカタインクス株式会社 Black pigment dispersion composition and black pigment dispersion resist composition containing it

Also Published As

Publication number Publication date
JP2022065931A (en) 2022-04-28
KR20220050770A (en) 2022-04-25

Similar Documents

Publication Publication Date Title
CN106489100B (en) Photosensitive resin composition, cured product, black matrix, and image display device
TWI663221B (en) Pigment dispersion for black matrix and pigment dispersion photoresist composition containing black matrix
KR20100127844A (en) Dispersant and pigment composition, pigment dispersing substance, and inkjet ink using the dispersant
KR20090008380A (en) Non-aqueous ink-jet ink, ink composition for ink-jet recording, and color filter substrate
EP3147335A1 (en) Colorant compositions containing wettting and/or dispersing agents with low amine number
JP7235474B2 (en) Coloring composition and color filter
CN114384755A (en) Black pigment dispersions
JP2022177838A (en) Polymerization product containing block copolymer
JP7235475B2 (en) Coloring composition and color filter
KR20090065209A (en) Pigment distribution system and encapsulation method for pigment
EP3710542B1 (en) Block co-polymer
EP3710505B1 (en) Block co-polymer
KR101959155B1 (en) Block copolymer, dispersant and pigment dispersion composition
JP7217680B2 (en) Block copolymers, dispersants, coloring compositions and color filters
JP7299895B2 (en) Dispersant composition, coloring composition, and color filter
JP7299894B2 (en) Dispersant composition, coloring composition, and color filter
CN115521638A (en) Black pigment dispersion and color pigment dispersion
CN115505298A (en) Black pigment dispersions
JP7148488B2 (en) Pigment dispersant, method for producing pigment dispersant, and pigment dispersion
CN114539807A (en) Pigment dispersion liquid composition and colored photosensitive resin composition containing same
KR20100020172A (en) Printing ink composition for color filter, color filter, and liquid crystal display device having the same
JP2018172530A (en) Block copolymer, dispersant, coloring composition and color filter

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination