CN111234610B - Water-based ink-jet pigment color paste and preparation method and application thereof - Google Patents
Water-based ink-jet pigment color paste and preparation method and application thereof Download PDFInfo
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- CN111234610B CN111234610B CN202010179595.7A CN202010179595A CN111234610B CN 111234610 B CN111234610 B CN 111234610B CN 202010179595 A CN202010179595 A CN 202010179595A CN 111234610 B CN111234610 B CN 111234610B
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- pigment
- water
- color paste
- structured acrylic
- solution
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- 239000000049 pigment Substances 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 69
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000000178 monomer Substances 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000007614 solvation Methods 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 239000000243 solution Substances 0.000 claims description 45
- 239000003960 organic solvent Substances 0.000 claims description 32
- 239000007864 aqueous solution Substances 0.000 claims description 24
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 21
- 238000002156 mixing Methods 0.000 claims description 21
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 18
- 239000001052 yellow pigment Substances 0.000 claims description 15
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 14
- 239000001055 blue pigment Substances 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 13
- 239000001054 red pigment Substances 0.000 claims description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 101000614399 Homo sapiens Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit beta Proteins 0.000 claims description 8
- 102100040471 Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit beta Human genes 0.000 claims description 8
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000006184 cosolvent Substances 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- 239000000080 wetting agent Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- PJAKWOZHTFWTNF-UHFFFAOYSA-N (2-nonylphenyl) prop-2-enoate Chemical compound CCCCCCCCCC1=CC=CC=C1OC(=O)C=C PJAKWOZHTFWTNF-UHFFFAOYSA-N 0.000 claims description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- DCONPFOUURUOHW-UHFFFAOYSA-N C(C=C)(=O)OC1=C(C=C(C=C1)CCCCCCCCC)OCC Chemical compound C(C=C)(=O)OC1=C(C=C(C=C1)CCCCCCCCC)OCC DCONPFOUURUOHW-UHFFFAOYSA-N 0.000 claims description 3
- FQZIORTZCBTBBM-UHFFFAOYSA-N [2-(1-ethoxynonan-2-yl)phenyl] prop-2-enoate Chemical compound CCCCCCCC(COCC)C1=CC=CC=C1OC(=O)C=C FQZIORTZCBTBBM-UHFFFAOYSA-N 0.000 claims description 3
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- PPRQWSMMIDEZMO-UHFFFAOYSA-N [2-[9-(3-ethoxypropoxy)nonyl]phenyl] prop-2-enoate Chemical compound CCOCCCOCCCCCCCCCC1=CC=CC=C1OC(=O)C=C PPRQWSMMIDEZMO-UHFFFAOYSA-N 0.000 claims description 2
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 claims description 2
- 229940011051 isopropyl acetate Drugs 0.000 claims description 2
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 description 20
- 239000002245 particle Substances 0.000 description 19
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000000976 ink Substances 0.000 description 11
- 239000008367 deionised water Substances 0.000 description 8
- 229910021641 deionized water Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 229910014314 BYK190 Inorganic materials 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 150000007529 inorganic bases Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- -1 polyoxyethylene Polymers 0.000 description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- IWOSANAKNVFCKO-UHFFFAOYSA-N (2-nonyl-3-propoxyphenyl) prop-2-enoate Chemical compound C(C=C)(=O)OC1=C(C(=CC=C1)OCCC)CCCCCCCCC IWOSANAKNVFCKO-UHFFFAOYSA-N 0.000 description 1
- LXOFYPKXCSULTL-UHFFFAOYSA-N 2,4,7,9-tetramethyldec-5-yne-4,7-diol Chemical compound CC(C)CC(C)(O)C#CC(C)(O)CC(C)C LXOFYPKXCSULTL-UHFFFAOYSA-N 0.000 description 1
- MTLWTRLYHAQCAM-UHFFFAOYSA-N 2-[(1-cyano-2-methylpropyl)diazenyl]-3-methylbutanenitrile Chemical compound CC(C)C(C#N)N=NC(C#N)C(C)C MTLWTRLYHAQCAM-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- ZQMHJBXHRFJKOT-UHFFFAOYSA-N methyl 2-[(1-methoxy-2-methyl-1-oxopropan-2-yl)diazenyl]-2-methylpropanoate Chemical compound COC(=O)C(C)(C)N=NC(C)(C)C(=O)OC ZQMHJBXHRFJKOT-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012430 stability testing Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- C09D17/001—Pigment pastes, e.g. for mixing in paints in aqueous medium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/322—Pigment inks
-
- 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
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/324—Inkjet printing inks characterised by colouring agents containing carbon black
- C09D11/326—Inkjet printing inks characterised by colouring agents containing carbon black characterised by the pigment dispersant
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Abstract
The invention provides an aqueous ink-jet pigment color paste and a preparation method and application thereof, belonging to the technical field of aqueous color pastes. The invention provides a water-based ink-jet pigment color paste which comprises the following preparation raw materials in parts by mass: 5-20 parts of a structured acrylic dispersing agent; 50-90 parts of water; 10-50 parts of pigment; 0-25 parts of an auxiliary agent; the structured acrylic dispersing agent contains a main chain formed by pigment-philic monomers and a solvation chain formed by hydrophilic monomers. The water-based ink-jet pigment color paste provided by the invention uses the structured acrylic dispersing agent, the main chain of the water-based ink-jet pigment color paste is formed by pigment-philic monomers, the water-based ink-jet pigment color paste has a strong adsorption effect on the pigment, is not easy to fall off and replace, and can effectively reduce the surface energy of the pigment; meanwhile, the solvation chain is formed by hydrophilic monomers, has good compatibility with water, and can be smoothly spread to form steric hindrance or electrostatic repulsion. Therefore, the aqueous ink-jet pigment color paste provided by the invention has excellent dispersibility and stability.
Description
Technical Field
The invention relates to the technical field of aqueous color paste, in particular to aqueous ink-jet pigment color paste and a preparation method and application thereof.
Background
The traditional water-based ink-jet dye ink has the characteristics of low toxicity, good environmental affinity, bright and vivid color, low price and the like, and is widely applied to various places needing printing output. However, the aqueous ink-jet dye ink has two fatal defects, the first is that the ink is not water-resistant and can be dyed and dissolved in water; secondly, the film is not light-resistant, and ultraviolet rays and ozone can degrade dyes under the irradiation of sunlight, so that the fading distortion of images is caused.
To address these problems, aqueous inkjet pigment inks have been developed. The pigment is not dissolved in water, so that the water resistance is good; and the pigment has stable chemical property, is not easy to be corroded by ultraviolet rays and ozone, has strong optical rotation resistance and is not easy to fade. But the pigment is insoluble in water, and is dispersed in the ink in the form of fine particles. In order to ensure that the pigment particles are stably dispersed in the ink, the preparation of the water-based ink-jet pigment color paste with strong dispersion and high stability is required. The traditional method is to use non-structured dispersing agent, such as traditional small molecular dispersing agent (such as nonylphenol polyoxyethylene ether, molecular weight Mw is 800) or high molecular dispersing agent (such as polyacrylic acid sulfonate or fatty acid polyoxyethylene), the adsorption point of its anchoring group to the pigment is too little or too weak, and the solvation chain is too short or too long, the affinity to water is too poor, and it is unable to generate enough steric hindrance or electrostatic repulsion, so it is unable to obtain strong dispersion, high stability aqueous ink-jet pigment paste, and it is easy to cause the pigment to precipitate and settle to block the nozzle. Earlier multi-pass printing methods that generally used multiple scans to compensate for insertion points were used to overcome the problem of line breaks due to nozzle clogging. However, with the demand for fast printing, high-speed printers have changed to single-pass (one-pass) printing, and aqueous inkjet pigment inks that are completely stable and do not settle out are required.
Disclosure of Invention
The invention aims to provide an aqueous inkjet pigment color paste, a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the water-based ink-jet pigment color paste comprises the following preparation raw materials in parts by mass:
the structured acrylic dispersing agent contains a main chain formed by pigment-philic monomers and a solvation chain formed by hydrophilic monomers.
Preferably, the pigment philic monomer comprises (ethoxy)4Nonyl phenol acrylate, (ethoxy)8Nonyl phenol acrylate, (propoxy)2At least one of nonylphenol acrylate and ethoxypropoxynonylphenol acrylate.
Preferably, the hydrophilic monomer includes at least one of polyethylene glycol acrylate and methacrylic acid.
Preferably, the polyethylene glycol acrylate has a weight average molecular weight of 200 to 10000.
Preferably, the mass ratio of the pigment-philic monomer to the hydrophilic monomer is 1-4: 1-15.
Preferably, the pigment includes at least one of a red pigment, a yellow pigment, a blue pigment, and a black pigment.
Preferably, the red pigment includes red pigment PR48: 1. PR48: 2. PR57: 1. at least one of PR146, PR122, PR254, PR269, and PV 19;
the yellow pigment comprises at least one of yellow pigments PY12, PY17, PY74, PY150, PY151, PY155 and PY 180;
the blue pigment comprises blue pigment PB15: 1. PB15: 2. PB15:3 and PB15: 4;
the black pigment is carbon black.
Preferably, the adjuvant comprises at least one of a co-solvent and a wetting agent.
The invention provides a preparation method of the water-based ink-jet pigment color paste, which comprises the following steps:
the preparation method comprises the steps of mixing the preparation raw materials of the water-based ink-jet pigment color paste, grinding and filtering to obtain the water-based ink-jet pigment color paste.
The invention provides application of the water-based ink-jet pigment color paste prepared by the technical scheme or the water-based ink-jet pigment color paste prepared by the preparation method in the technical scheme in preparation of water-based ink-jet pigment ink.
The invention provides water-based ink-jet pigment color paste which comprises the following preparation raw materials in parts by mass: 5-20 parts of a structured acrylic dispersing agent; 50-90 parts of water; 10-50 parts of pigment; 0-25 parts of an auxiliary agent; the structured acrylic dispersing agent contains a main chain formed by pigment-philic monomers and a solvation chain formed by hydrophilic monomers. The water-based ink-jet pigment color paste provided by the invention uses the structured acrylic dispersing agent, the main chain of the water-based ink-jet pigment color paste is formed by pigment-philic monomers, the water-based ink-jet pigment color paste has a strong adsorption effect on the pigment, is not easy to fall off and replace, and can effectively reduce the surface energy of the pigment; meanwhile, the solvation chain is formed by hydrophilic monomers, has good compatibility with water, and can be smoothly spread to form steric hindrance or electrostatic repulsion. Therefore, the aqueous ink-jet pigment color paste provided by the invention has excellent dispersibility and stability. The results of the examples show that the aqueous inkjet pigment paste using the structured acrylic dispersant provided by the invention has good stability, and the particle size, viscosity, surface tension and filterability are still good after aging for 7 days.
Detailed Description
The invention provides water-based ink-jet pigment color paste which comprises the following preparation raw materials in parts by mass:
the structured acrylic dispersing agent contains a main chain formed by pigment-philic monomers and a solvation chain formed by hydrophilic monomers.
The raw materials for preparing the water-based ink-jet pigment color paste comprise 5-20 parts by mass of a structured acrylic dispersing agent, preferably 6-15 parts by mass; the structured acrylic dispersing agent contains a main chain formed by pigment-philic monomers and a solvation chain formed by hydrophilic monomers.
In the present invention, the pigment-philic monomer preferably comprises (ethoxy)4Nonyl phenol acrylate (i.e. CH)2＝CHCO2(CH2CH2O)4(C6H4)C9H19) , (ethoxy)8Nonyl phenol acrylate (i.e. CH)2＝CHCO2(CH2CH2O)8(C6H4)C9H19) , (propoxy)2Nonyl phenol acrylate (i.e. CH)2＝CHCO2(CH2CH2CH2O)2(C6H4)C9H19) And ethoxypropoxypropylnonylphenol propeneAcid ester (i.e. CH)2＝CHCO2(CH2CH2O)n(CH2CH2CH2O)m(C6H4)C9H19N is 1 to 8, m is 1 to 8), more preferably (propoxy group)2Nonylphenol acrylate. The invention preferably adopts the pigment-philic monomer containing the nonyl phenol structure, and the main chain formed by the monomer has an anchoring structure which is strongly adsorbed with the surface of the pigment, so that the high-compatibility strong adsorption can be carried out on the surface of the pigment, and the dispersibility and the stability of the water-based ink-jet pigment color paste can be improved.
In the present invention, the hydrophilic monomer preferably includes at least one of polyethylene glycol acrylate and methacrylic acid, more preferably polyethylene glycol acrylate or methacrylic acid; the weight average molecular weight of the polyethylene glycol acrylate is preferably 200-10000, more preferably 500-5000, and further preferably 1000-3000. The function of the solvation chain in the structured acrylic dispersing agent is to generate steric hindrance or electrostatic repulsion so that pigment particles are not easy to agglomerate; in particular, methacrylic acid is preferably adopted as a hydrophilic monomer, and the carboxylic acid group dissociation of the monomer is utilized to generate electrostatic repulsion, so that the pigment particles can be kept in a stable dispersion state; the invention preferably adopts polyethylene glycol acrylate as a hydrophilic monomer, and utilizes a polyethylene glycol structure with selectable chain length to keep the stable dispersion state among pigment particles, if the molecular weight of the polyethylene glycol acrylate is too small, the solvation chain is too short to generate enough steric hindrance, and if the molecular weight is too large, the solvation chain is too long to easily cause molecule winding flocculation.
In the present invention, the structured acrylic dispersant is preferably used in the form of a structured acrylic dispersant aqueous solution, and the preparation method of the structured acrylic dispersant aqueous solution preferably comprises the following steps:
adding a first organic solvent into a reactor under a protective gas atmosphere, and preheating to a polymerization reaction temperature;
mixing a pigment-philic monomer and a hydrophilic monomer to obtain a first premixed solution;
mixing an initiator and a second organic solvent to obtain a second premixed solution;
adding the first premixed solution and the second premixed solution into a reactor for polymerization reaction to obtain a structured acrylic dispersant organic solution;
and mixing the organic solution of the structured acrylic dispersant with 2-pyrrolidone, then heating to remove the first organic solvent and the second organic solvent, mixing the obtained remainder with water, and adjusting the pH value of the obtained system to be alkaline to obtain the aqueous solution of the structured acrylic dispersant.
In the invention, under the atmosphere of protective gas, a first organic solvent is added into a reactor and preheated to the polymerization reaction temperature. In the invention, protective gas is preferably introduced into a reaction bottle provided with a condensing reflux device, the first organic solvent is placed into the reaction bottle, and the temperature required by the polymerization reaction is heated. In the present invention, the first organic solvent preferably includes at least one of ethanol, propanol, isopropanol, butanone, methyl isobutyl ketone, ethyl acetate, isopropyl acetate, dichloromethane, acetone, dichloroethane, toluene, xylene, tetrahydrofuran, and cyclohexanone, and may be a mixture of butanone and isopropanol or a mixture of ethyl acetate and isopropanol, where when the first organic solvent is a mixture, the ratio of each component is not particularly limited.
The pigment-philic monomer and the hydrophilic monomer are mixed to obtain a first premixed liquid. In the invention, the mass ratio of the pigment-philic monomer to the hydrophilic monomer is preferably 1-4: 1-15, and more preferably 1-3: 1-10.
The invention mixes the initiator and the second organic solvent to obtain the second premixed liquid. In the present invention, the initiator preferably includes at least one of azobisisoheptonitrile (Vazo52), azobisisobutyronitrile (Vazo64), azobisisovaleronitrile (Vazo67), dimethyl azobisisobutyrate, azobisisobutyramidine hydrochloride (Vazo56), azobisisobutyroline hydrochloride (Vazo44), azobisisobutyronitrile formamide and azobiscyclohexylcarbonitrile (Vazo88), more preferably azobisisoheptonitrile or azobisisobutyronitrile; the amount of the initiator used is not particularly limited in the present invention, and the polymerization reaction can be smoothly carried out by using an amount known to those skilled in the art. In the present invention, the selectable range of the second organic solvent is preferably the same as that of the first organic solvent, and is not described herein again; the dosage of the second organic solvent is not specially limited, and the initiator is fully dissolved.
After the first premixed liquid and the second premixed liquid are obtained, the first premixed liquid and the second premixed liquid are added into a reactor for polymerization reaction, and the structured acrylic dispersant organic solution is obtained. In the invention, the effective part of the structured acrylic dispersant organic solution is preferably 40-60%, and more preferably 45-55%. The total dosage of the organic solvent is the sum of the dosage of the first organic solvent added into the reaction bottle and the dosage of the second organic solvent in the second premixed solution; the total amount of the organic solvent is preferably based on the effective component of the organic solution of the structured acrylic dispersant being 40-60%.
In the invention, the temperature of the polymerization reaction is preferably 60-90 ℃, and more preferably 70-80 ℃; the time is preferably 4-7 h, specifically, the content of the acrylate group in the system is detected in the reaction process, and the reaction is terminated when the content of the residual acrylate group in the system is less than 5%.
After the polymerization reaction is finished, the organic solution of the structured acrylic dispersant is mixed with 2-pyrrolidone, then the first organic solvent and the second organic solvent are removed by heating, the obtained remainder is mixed with water, and the pH value of the obtained system is adjusted to be alkaline, so that the aqueous solution of the structured acrylic dispersant is obtained. In the present invention, the addition amount of the 2-pyrrolidone is preferably consistent with the total amount of the organic solvent, and the total amount of the organic solvent is the sum of the amounts of the first organic solvent and the second organic solvent. In the present invention, the heating temperature is preferably not lower than the boiling point of the organic solvent, and the heating time is preferably up to the total amount of the organic solvent to be distilled off.
After the first organic solvent and the second organic solvent are removed by heating, the invention preferably cools the obtained residue to room temperature, mixes the cooled residue with water, and adjusts the pH value of the obtained system to be alkaline to obtain the water solution of the structured acrylic dispersant. According to the invention, the pH value of an inorganic base or organic base adjusting system is preferably 8-10, the inorganic base can be potassium hydroxide, and the organic base can be monoethanolamine. In the invention, the solid content of the structural acrylic dispersant aqueous solution is preferably 20-50%, and more preferably 30-40%. In the invention, when the remainder is mixed with water after being cooled to room temperature, the amount of the water is preferably based on the solid content of the structural acrylic dispersant aqueous solution being in the range of 30-40%.
In the invention, the structured acrylic dispersant aqueous solution comprises a structured acrylic dispersant, 2-pyrrolidone and water, and the content of the 2-pyrrolidone in the structured acrylic dispersant aqueous solution is preferably 10-50%.
In the invention, the mass parts of the structured acrylic dispersant in the aqueous inkjet pigment paste are specifically calculated based on the structured acrylic dispersant in the aqueous solution of the structured acrylic dispersant, but not based on the aqueous solution of the structured acrylic dispersant.
By taking the mass parts of the structured acrylic dispersing agent as a reference, the raw material for preparing the water-based ink-jet pigment color paste comprises 50-90 parts of water, preferably 60-85 parts of water; in the invention, the water specifically refers to water in the aqueous solution of the structured acrylic dispersant and water added separately. In the present invention, the water is preferably deionized water.
The raw materials for preparing the water-based ink-jet pigment color paste comprise 10-50 parts of pigment, preferably 15-40 parts of pigment by mass based on the mass part of the structured acrylic dispersing agent. In the present invention, the pigment preferably includes at least one of a red pigment, a yellow pigment, a blue pigment and a black pigment, and more preferably a red pigment, a yellow pigment, a blue pigment or a black pigment. In the present invention, the red pigment preferably includes red pigment PR48: 1. PR48: 2. PR57: 1. at least one of PR146, PR122, PR254, PR269, and PV19, more preferably a color pigment PR48: 1. PR48: 2. PR57: 1. PR146, PR122, PR254, PR269 or PV 19; the yellow pigment preferably includes at least one of yellow pigments PY12, PY17, PY74, PY150, PY151, PY155 and PY180, more preferably a yellow pigment PY12, PY17, PY74, PY150, PY151, PY155 or PY 180; the blue pigments include blue pigment PB15: 1. PB15: 2. PB15:3 and PB15:4, more preferably blue pigment PB15: 1. PB15: 2. PB15:3 or PB15: 4; the black pigment is preferably carbon black.
The raw materials for preparing the water-based ink-jet pigment color paste comprise 0-25 parts of an auxiliary agent, preferably 0-15 parts, and more preferably 1-5 parts by mass of a structured acrylic dispersing agent. In the invention, the auxiliary agent preferably comprises at least one of a cosolvent and a wetting agent, the cosolvent preferably comprises at least one of an alcohol cosolvent, an ether cosolvent and an alcohol ether cosolvent, and specifically can be isopropanol, propylene glycol, glycerol or propylene glycol methyl ether; the wetting agent preferably comprises at least one of BYK154, BYK190, BYK306, BYK333, BYK346, BYK378, DYNFET 800N, Evonik SURFYNOL104E, Evonik SURFYNOL420, Evonik SURFYNOL465, DYNOL604, and DYNOL 607. The invention can wet the pigment or preserve moisture by using the auxiliary agent, is beneficial to pigment dispersion and avoids drying and caking of the spray head caused by water evaporation.
The invention provides a preparation method of the water-based ink-jet pigment color paste, which comprises the following steps:
the preparation method comprises the steps of mixing the preparation raw materials of the water-based ink-jet pigment color paste, grinding and filtering to obtain the water-based ink-jet pigment color paste.
Preferably, the water solution of the structured acrylic dispersant is prepared according to the technical scheme, and then the water solution of the structured acrylic dispersant is mixed with the residual water (namely the water except the water in the water solution of the structured acrylic dispersant) to obtain an aqueous pre-solution; mixing a pigment with the aqueous pre-solution until the pigment is completely wetted to obtain an aqueous pre-dispersion liquid; and sequentially grinding and filtering the aqueous pre-dispersion liquid to obtain the aqueous inkjet pigment color paste. In the present invention, the grinding is preferably carried out in a sand mill; the specific operation conditions for the grinding are not particularly limited, and the average particle size of the particulate matter in the system is 100-200 nm. The invention has no special limitation on the filtration, and can remove colloid and large-particle-size substances; the invention preferably adopts a filter membrane with the aperture of 0.22-1 mu m for filtration.
The invention provides application of the water-based ink-jet pigment color paste prepared by the technical scheme or the water-based ink-jet pigment color paste prepared by the preparation method in the technical scheme in preparation of water-based ink-jet pigment ink. The invention is not particularly limited to this application and may be practiced in a manner well known to those skilled in the art.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Introducing nitrogen into a reaction bottle provided with a condensing reflux device, adding 317g of butanone and 163g of isopropanol serving as solvents, and heating to 80 ℃; then 40g of methacrylic acid and 410g (propoxy)2Mixing nonyl phenol acrylate to obtain a first premixed liquid; mixing and stirring 60g of butanone and 10g of azobisisoheptonitrile until the butanone and the azodiisoheptanonitrile are dissolved to obtain a second premixed solution; then slowly adding the first premixed solution and the second premixed solution into a reaction bottle at the same time, reacting for 5 hours at 80 ℃, detecting that the content of the residual acrylate group is less than 5%, and stopping the reaction to obtain a 45% effective part of the structured acrylic dispersant organic solution; then adding 540g of 2-pyrrolidone, uniformly mixing, heating to 100 ℃ to remove butanone and isopropanol in the solution, cooling to room temperature, then adding deionized water until the total mass of the system is 1286g, and adjusting the pH value of the obtained system to 9 by using KOH to obtain a structured acrylic dispersant aqueous solution SA1 with the solid content of 35%;
mixing 429g of the structural acrylic dispersant aqueous solution SA1 with 1271g of deionized water, and stirring until the mixture is completely dissolved to obtain an aqueous pre-solution; then 300g of blue pigment PB15:3 with the aqueous pre-solution and stirred to give blue pigment PB15:3, completely wetting to obtain an aqueous pre-dispersion liquid; introducing the aqueous pre-dispersion liquid into a sand mill for grinding until the average particle size is 100-200 nm; filtering with a filter membrane with the aperture of 0.22 mu m to remove colloids and large-particle-size substances, and obtaining the water-based blue color paste with stable dispersion (the effective part of the structured acrylic dispersant is 7.5%).
Example 2
Introducing nitrogen into a reaction bottle provided with a condensing reflux device, adding 278g of ethyl acetate and 146g of isopropanol serving as solvents, and heating to 75 ℃; 210g of polyethylene glycol acrylate (molecular weight Mw 1000) and 240g (propoxy) were then added2Mixing nonyl phenol acrylate to obtain a first premixed liquid; mixing and stirring 108g of ethyl acetate and 18g of azobisisobutyronitrile until the ethyl acetate and the azobisisobutyronitrile are dissolved to obtain a second premixed solution; then slowly adding the first premixed solution and the second premixed solution into a reaction bottle at the same time, reacting for 6 hours at 75 ℃, detecting that the content of the residual acrylate group is less than 5%, and stopping the reaction to obtain a 45% effective part of the structured acrylic dispersant organic solution; then adding 540g of 2-pyrrolidone, uniformly mixing, heating to 100 ℃ to remove ethyl acetate and isopropanol in the solution, cooling to room temperature, then adding deionized water until the total mass of the system is 1286g, and adjusting the pH value of the obtained system to be 9 by adopting monoethanolamine to obtain a structured acrylic dispersant aqueous solution SA2 with the solid content of 35%;
mixing 343g of a structured acrylic dispersing agent aqueous solution SA2, 6g of a wetting agent SURFYNOL420 and 1351g of deionized water, and stirring until the mixture is completely dissolved to obtain an aqueous pre-solution; then 300g of carbon black pigment is mixed with the aqueous pre-solution, and the mixture is stirred to completely wet the carbon black pigment to obtain aqueous pre-dispersion liquid; introducing the aqueous pre-dispersion liquid into a sand mill for grinding until the average particle size is 100-200 nm; filtering with a filter membrane with the aperture of 0.22 mu m to remove colloids and large-particle-size substances, and obtaining the water-based black color paste with stable dispersion (the effective part of the structured acrylic dispersant is 6%).
Example 3
514g of the aqueous solution SA1 of the structured acrylic dispersant prepared in example 1, 343g of the aqueous solution SA2 of the structured acrylic dispersant prepared in example 2 and 843g of deionized water are mixed and stirred until the aqueous solution is completely dissolved to obtain an aqueous pre-solution; then 300g of red pigment PR122 is mixed with the aqueous pre-solution, and the mixture is stirred to completely wet the red pigment PR122 to obtain aqueous pre-dispersion liquid; introducing the aqueous pre-dispersion liquid into a sand mill for grinding until the average particle size is 100-200 nm; filtering with a filter membrane with the aperture of 0.22 mu m to remove colloids and large-particle-size substances, and obtaining the water-based red color paste with stable dispersion (the total effective part of the structured acrylic dispersant is 15%).
Example 4
571g of the structural acrylic dispersant aqueous solution SA2 prepared in example 2 (equivalent to 10% of the effective component), 100g of the wetting agent BYK190 and 1029g of deionized water are mixed and stirred until the components are completely dissolved to obtain an aqueous pre-solution; then 300g of yellow pigment PY74 was mixed with the aqueous pre-solution and stirred to completely wet yellow pigment PY74 to obtain an aqueous pre-dispersion; introducing the aqueous pre-dispersion liquid into a sand mill for grinding until the average particle size is 100-200 nm; filtering with a filter membrane with the aperture of 0.22 mu m to remove colloids and large-particle-size substances, and obtaining the stably dispersed water-based yellow color paste (the effective part of the structured acrylic dispersant is 10%).
Comparative example 1
Mixing 200g of low molecular weight dispersant (nonylphenol polyoxyethylene ether, molecular weight Mw is 800) with 1500g of deionized water, and stirring until the mixture is completely dissolved to obtain an aqueous pre-solution; then 300g of yellow pigment PY74 was mixed with the aqueous pre-solution and stirred to completely wet yellow pigment PY74 to obtain an aqueous pre-dispersion; introducing the aqueous pre-dispersion liquid into a sand mill for grinding until the average particle size is 100-200 nm; filtering with a filter membrane with the aperture of 0.22 mu m to remove colloids and large-particle-size substances to obtain the aqueous yellow color paste (the effective part of the dispersant is 10%).
Stability test
Taking the color pastes prepared in the examples 1-4 and the comparative example 1, and respectively diluting the color pastes by 5 times by using a 15 wt% glycerol aqueous solution to obtain an ink combined liquid sample; and then carrying out particle size, viscosity, surface tension, filterability and aging tests on the ink combined liquid sample, wherein:
and (3) particle size detection: detecting by using a British Marvern (Malvern) Nano S90 nanometer particle size instrument;
and (3) viscosity detection: detection was performed using a Brookfield Wells cone and plate viscometer;
surface tension test: the test was carried out using a Japanese synergy (KYOWA) CBVP type surface tensiometer.
And (3) testing filterability: the test was performed by filtration with a 1.0 μm pore glass fiber filter and a 0.45 μm pore PP filter.
And (3) stability testing: the particles were aged at 60 ℃ for 7 days and the particle size, viscosity, surface tension and filterability after aging were tested as described above.
The test results are shown in table 1, wherein the QC evaluation criteria: the average particle diameter is 100-200 nm, the viscosity is 2-6 cp, and the surface tension is 35-45 dyan/cm2The filtering property is less than 15min/1 kg; and (4) aging for 7 days at 60 ℃ in a stability test, wherein the change of the particle size is less than 10%, the change of the surface tension is less than 5%, the change of the viscosity is less than 10%, the filterability is less than 15min/1kg, the product is qualified OK, and otherwise, the product is NG.
TABLE 1 stability of pigment pastes obtained in examples 1 to 4 and comparative example 1
As can be seen from the test results in Table 1: the water-based ink-jet pigment color paste using the structured acrylic dispersing agent provided by the invention has good stability, and the particle size, viscosity, surface tension and filterability are still good in stability after the water-based ink-jet pigment color paste is aged for 7 days.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The water-based ink-jet pigment color paste is characterized by comprising the following preparation raw materials in parts by mass:
5-20 parts of a structured acrylic dispersing agent;
50-90 parts of water;
10-50 parts of pigment;
0-25 parts of an auxiliary agent;
the structured acrylic dispersing agent contains a main chain formed by pigment-philic monomers and a solvation chain formed by hydrophilic monomers, the hydrophilic monomers are polyethylene glycol acrylate, and the weight average molecular weight of the polyethylene glycol acrylate is 200-10000; the pigment-philic monomer comprises (ethoxy)4Nonyl phenol acrylate, (ethoxy)8Nonyl phenol acrylate (propoxy)2At least one of nonylphenol acrylate and ethoxypropoxynonylphenol acrylate; the mass ratio of the pigment-philic monomer to the hydrophilic monomer is 1-4: 1-15; the structured acrylic dispersant is used in the form of a structured acrylic dispersant aqueous solution, and the preparation method of the structured acrylic dispersant aqueous solution comprises the following steps:
adding a first organic solvent into a reactor under a protective gas atmosphere, and preheating to a polymerization reaction temperature;
mixing a pigment-philic monomer and a hydrophilic monomer to obtain a first premixed liquid;
mixing an initiator and a second organic solvent to obtain a second premixed solution;
adding the first premixed solution and the second premixed solution into a reactor for polymerization reaction to obtain a structured acrylic dispersant organic solution; the effective component of the structured acrylic dispersant organic solution is 40-60%; the temperature of the polymerization reaction is 60-90 ℃, and the time is 4-7 h;
mixing the organic solution of the structured acrylic dispersant with 2-pyrrolidone, then heating to remove a first organic solvent and a second organic solvent, mixing the obtained remainder with water, and adjusting the pH value of the obtained system to be alkaline to obtain an aqueous solution of the structured acrylic dispersant; the solid content of the structural acrylic dispersant aqueous solution is 20-50%;
the first organic solvent and the second organic solvent are at least one selected from ethanol, propanol, isopropanol, butanone, methyl isobutyl ketone, ethyl acetate, isopropyl acetate, dichloromethane, acetone, dichloroethane, toluene, xylene, tetrahydrofuran and cyclohexanone.
2. The aqueous inkjet pigment paste according to claim 1 wherein the pigment comprises at least one of a red pigment, a yellow pigment, a blue pigment and a black pigment.
3. The aqueous inkjet pigment paste according to claim 2 wherein the red pigment comprises at least one of red pigments PR48:1, PR48:2, PR57:1, PR146, PR122, PR254, PR269 and PV 19;
the yellow pigment comprises at least one of yellow pigments PY12, PY17, PY74, PY150, PY151, PY155 and PY 180;
the blue pigment comprises at least one of blue pigment PB15:1, PB15:2, PB15:3 and PB15: 4;
the black pigment is carbon black.
4. The aqueous inkjet pigment paste according to claim 1 wherein the additive comprises at least one of a co-solvent and a wetting agent.
5. The preparation method of the aqueous inkjet pigment paste according to any one of claims 1 to 4, which is characterized by comprising the following steps:
the preparation method comprises the steps of mixing the preparation raw materials of the water-based ink-jet pigment color paste, grinding and filtering to obtain the water-based ink-jet pigment color paste.
6. Use of the aqueous inkjet pigment paste according to any one of claims 1 to 4 or the aqueous inkjet pigment paste prepared by the preparation method according to claim 5 for preparing an aqueous inkjet pigment ink.
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| JP2019011446A (en) * | 2017-06-30 | 2019-01-24 | 花王株式会社 | Aqueous dispersion of water-insoluble dye |
| CN110054736A (en) * | 2019-04-11 | 2019-07-26 | 上海是大高分子材料有限公司 | A kind of polycarboxylate salt dispersant and preparation method thereof |
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| CN107880648A (en) * | 2017-12-07 | 2018-04-06 | 珠海华彩打印耗材有限公司 | A kind of waterborne digital printing dye sublimation ink-jet ink |
| CN108795158A (en) * | 2018-06-28 | 2018-11-13 | 传美讯电子科技（珠海）有限公司 | A kind of mill base and the preparation method and application thereof, a kind of piezoelectric type ink-jet ink |
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