CN116554727A - Environment-friendly water-based ink and preparation method thereof - Google Patents
Environment-friendly water-based ink and preparation method thereof Download PDFInfo
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- CN116554727A CN116554727A CN202310332789.XA CN202310332789A CN116554727A CN 116554727 A CN116554727 A CN 116554727A CN 202310332789 A CN202310332789 A CN 202310332789A CN 116554727 A CN116554727 A CN 116554727A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 114
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 57
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 43
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 43
- 239000002270 dispersing agent Substances 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 30
- 239000000049 pigment Substances 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims abstract description 20
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 20
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims abstract description 20
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims abstract description 20
- 239000011734 sodium Substances 0.000 claims abstract description 20
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 20
- PYIDGJJWBIBVIA-UYTYNIKBSA-N lauryl glucoside Chemical compound CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O PYIDGJJWBIBVIA-UYTYNIKBSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 66
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims description 37
- 239000011259 mixed solution Substances 0.000 claims description 35
- 239000002105 nanoparticle Substances 0.000 claims description 35
- 239000005543 nano-size silicon particle Substances 0.000 claims description 33
- 235000012239 silicon dioxide Nutrition 0.000 claims description 33
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 31
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 31
- 239000008367 deionised water Substances 0.000 claims description 31
- 229910021641 deionized water Inorganic materials 0.000 claims description 31
- 229920001661 Chitosan Polymers 0.000 claims description 30
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 28
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 26
- 229920000858 Cyclodextrin Polymers 0.000 claims description 21
- 239000001116 FEMA 4028 Substances 0.000 claims description 21
- 229920001046 Nanocellulose Polymers 0.000 claims description 21
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims description 21
- 229960004853 betadex Drugs 0.000 claims description 21
- 239000006185 dispersion Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 19
- IBVAQQYNSHJXBV-UHFFFAOYSA-N adipic acid dihydrazide Chemical compound NNC(=O)CCCCC(=O)NN IBVAQQYNSHJXBV-UHFFFAOYSA-N 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 18
- -1 glycerin fatty acid ester Chemical class 0.000 claims description 16
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 14
- 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 claims description 14
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 14
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 14
- 239000002202 Polyethylene glycol Substances 0.000 claims description 14
- 229960000583 acetic acid Drugs 0.000 claims description 14
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 14
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 14
- 239000000194 fatty acid Substances 0.000 claims description 14
- 229930195729 fatty acid Natural products 0.000 claims description 14
- 239000012362 glacial acetic acid Substances 0.000 claims description 14
- 235000011187 glycerol Nutrition 0.000 claims description 14
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 claims description 14
- 229920001223 polyethylene glycol Polymers 0.000 claims description 14
- 239000000661 sodium alginate Substances 0.000 claims description 14
- 235000010413 sodium alginate Nutrition 0.000 claims description 14
- 229940005550 sodium alginate Drugs 0.000 claims description 14
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 7
- 230000001804 emulsifying effect Effects 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 73
- 239000002904 solvent Substances 0.000 description 9
- 238000001035 drying Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000014101 wine Nutrition 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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses environment-friendly water-based ink and a preparation method thereof, and relates to the technical field of ink, wherein the environment-friendly water-based ink comprises the following raw materials in parts by weight: 30-50 parts of modified aqueous acrylic resin, 1-5 parts of modified nano calcium carbonate, 2-8 parts of hydroxypropyl cellulose sodium, 1-5 parts of dodecyl glucoside, 10-20 parts of pigment, 1-5 parts of dispersing agent and 10-30 parts of water. The preparation method comprises the following steps: s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 30-60 min at 1500-2000 r/min; s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing. The ink has the beneficial effects of good stability, good transparency, high gloss, good ink tinting strength, ink adhesion fastness and wear resistance.
Description
Technical Field
The invention relates to the technical field of ink, in particular to environment-friendly water-based ink and a preparation method thereof.
Background
The maximum use amount of the printing and packaging food is chlorinated polypropylene ink, polyurethane ink and polyacrylate ink, and the solvent type ink contains a large amount of benzene, toluene, butanone, ethyl acetate and other organic solvents, so that the volatilized solvents pollute the air in the use process of the solvent type ink, the physical health of operators is endangered, and the residual solvents in packaging products can seriously pollute the food in the packaging, so that the development of environment-friendly ink is imperative.
Among the many environmental-friendly inks, aqueous inks are a more promising class. The water-based ink is simply called water ink, and is mainly prepared by carrying out compound grinding processing on water-soluble resin, pigment, solvent and related auxiliary agents. The main difference between the water-based ink and the solvent-based ink is that: the solvent-based ink uses an organic solvent as a solvent, and the water-based ink uses water (45-50% of the total mass) as a solvent. The water-based ink contains no volatile organic solvent, so that the emission of organic volatile matters is greatly reduced, the atmospheric pollution is reduced, the environment of printing operators is improved, the operators are safe and healthy and nontoxic in the use process, the water has conductivity and can not accumulate static electricity, and the production site is very safe. Compared with solvent-based ink, the water-based ink has incomparable advantages in environmental protection, health and safety, is particularly suitable for packaging printed products with strict sanitary requirements such as cigarettes, wines, foods, beverages, medicines, children toys and the like, and is a real green product.
However, with the rapid development of the printing industry, the performance requirements of water-based inks are also increasing, such as low temperature performance, high gloss, water resistance, heat resistance, extreme environmental printability, and the like. The binder of the ink 'heart' plays a critical role in the water-based ink, and is a base material of grinding toner, a main mobile phase and a film forming substance of the ink after drying in the ink manufacturing process, so that the service performance and printing effect of the ink, such as viscosity, adhesive force, glossiness and dryness, are directly determined.
The ink binder in the prior art usually adopts water-based acrylic resin, water-based polyurethane resin and epoxy resin. The aqueous acrylic resin has remarkable advantages in gloss, weather resistance, heat resistance, pollution resistance and the like as an ink binder, and has good performance compared with other resins, and the ink prepared from the resin has good quality, but has the problems of general ink tinting strength and adhesion fastness and poor continuous film forming property.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides environment-friendly water-based ink and a preparation method thereof.
The technical scheme of the invention is as follows:
an environment-friendly water-based ink comprises the following raw materials in parts by weight:
30-50 parts of modified aqueous acrylic resin, 1-5 parts of modified nano calcium carbonate, 2-8 parts of hydroxypropyl cellulose sodium, 1-5 parts of dodecyl glucoside, 10-20 parts of pigment, 1-5 parts of dispersing agent and 10-30 parts of water.
Preferably, the material comprises the following raw materials in parts by weight: 35-45 parts of modified water-based acrylic resin, 2-4 parts of modified nano calcium carbonate, 3-7 parts of hydroxypropyl cellulose sodium, 2-4 parts of dodecyl glucoside, 12-18 parts of pigment, 2-4 parts of dispersing agent and 15-25 parts of water.
Preferably, the preparation method of the modified aqueous acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water, performing ultrasonic dispersion for 30-60 min, adding chitosan and glacial acetic acid, and stirring for 20-30 min to obtain a modified nano particle-chitosan solution;
(2) Dissolving beta-cyclodextrin in sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin;
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, continuously adding modified nanoparticle-chitosan solution and modified beta-cyclodextrin, stirring and emulsifying to obtain a mixed solution I;
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II;
(5) Heating the first mixed solution to 50-60 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 80-100 ℃, and reacting for 2-8 hours to obtain the modified aqueous acrylic resin.
Preferably, the preparation method of the modified nanoparticle comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water to form a dispersion liquid; adding a silane coupling agent into ethanol, and adding nanocellulose for high-speed dispersion; continuously adding the dispersion liquid, heating and reacting for 1-3 hours at 50-70 ℃, and cooling to obtain the modified nano particles.
Preferably, the mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 2-4:1-2:1-2, and the addition amount of the silane coupling agent is 1-3% of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
Preferably, the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 2-4:1-2:1.5-3, and the mass ratio of the beta-cyclodextrin to the sodium hydroxide solution to the polyethylene glycol is 1:2-4:1-2.
Preferably, the mass ratio of the acrylic acid to the hydroxypropyl methacrylate, the methyl methacrylate, the diacetone acrylamide, the glycerin fatty acid ester, the adipic acid dihydrazide and the azodiisobutyronitrile is 2-6:2-6:4-8:0.4-0.8:0.8-1.2:0.4-0.6:0.4-0.6, and the addition amounts of the nano silicon dioxide and the beta-cyclodextrin are 3-7% and 5-9% of the mass of the acrylic acid respectively.
Preferably, the preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 5-15 min to obtain modified nano calcium carbonate.
Preferably, the mass ratio of the nano calcium carbonate to the vinyl triethoxysilane to the sodium alginate is 4-6:0.1-0.2:1-2.
The preparation method of the environment-friendly water-based ink comprises the following steps:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 30-60 min at 1500-2000 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
The invention has at least one of the following beneficial effects:
according to the invention, the modified aqueous acrylic resin, the modified nano calcium carbonate, the hydroxypropyl cellulose sodium, the dodecyl glucoside, the pigment, the dispersing agent and the water are used as raw materials, on one hand, the aqueous acrylic resin is modified, and the modified nano particles, the chitosan and the modified beta-cyclodextrin are added, so that the binding property with the aqueous acrylic resin is improved, and the performance of the aqueous acrylic resin is improved. The modified nano particles not only can keep good fluidity and fineness of the ink and prevent pigment sedimentation, but also can improve the wear resistance, corrosion resistance and adhesive force of the ink; the chitosan and the modified beta-cyclodextrin are environment-friendly, so that the viscosity and the surface tension of the liquid are increased, the components interact with each other, the stability of the ink is improved, and the performances of adhesive force, hardness, water resistance and the like of the ink are improved. The nano calcium carbonate is modified, so that the nano calcium carbonate has the characteristics of small particle size, uniform particle distribution, good compatibility of ink resin and the like, and the color, concentration, consistency and the like of the ink can be adjusted. Therefore, through the collocation and the synergistic effect of the components, the ink disclosed by the invention is good in stability, good in transparency and high in gloss, and has good ink tinting strength, ink adhesion fastness and wear resistance.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples, but the present invention is not limited to the following specific examples.
Example 1
Weighing the following raw materials in parts by weight:
30 parts of modified aqueous acrylic resin, 1 part of modified nano calcium carbonate, 2 parts of hydroxypropyl cellulose sodium, 1 part of dodecyl glucoside, 10 parts of pigment, 1 part of dispersing agent and 10 parts of water.
The preparation method of the modified aqueous acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water with the weight being 5 times that of the modified nano particles, performing ultrasonic dispersion for 30min, adding chitosan and glacial acetic acid, and stirring for 20min to obtain a modified nano particle-chitosan solution; the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 2:1:1.5.
The preparation method of the modified nanoparticle comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water with the weight being 5 times that of the nano titanium dioxide and the nano silicon dioxide to form a dispersion liquid; adding a silane coupling agent into ethanol with the weight being 10 times that of the silane coupling agent, and adding nanocellulose for high-speed dispersion; and continuously adding the dispersion liquid, heating at 50 ℃ for reaction for 1h, cooling and drying to obtain the modified nano particles. The mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 2:1:1, and the addition amount of the silane coupling agent is 1% of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
(2) Dissolving beta-cyclodextrin in 10% sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin; the mass ratio of the beta-cyclodextrin to the sodium hydroxide solution to the polyethylene glycol is 1:2:1.
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, wherein the mass ratio of the acrylic acid to the hydroxypropyl methacrylate to the methyl methacrylate to the diacetone acrylamide to the glycerin fatty acid ester is 2:2:4:0.4:0.8, and the adding amount of the deionized water is 10 times of the mass of the acrylic acid; continuously adding the modified nanoparticle-chitosan solution and the modified beta-cyclodextrin, stirring and emulsifying to obtain a first mixed solution; the addition amounts of the nano silicon dioxide and the beta-cyclodextrin are respectively 3% and 5% of the mass of the acrylic acid.
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II; the mass ratio of the acrylic acid to the adipic acid dihydrazide to the azodiisobutyronitrile is 2:0.4:0.4; the deionized water was added 3 times the amount of adipic acid dihydrazide.
(5) And heating the first mixed solution to 50 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 80 ℃, and reacting for 2 hours to obtain the modified aqueous acrylic resin.
The preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water with the weight being 10 times that of the nano calcium carbonate, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 5 minutes to obtain the modified nano calcium carbonate. The mass ratio of the nano calcium carbonate to the vinyl triethoxysilane to the sodium alginate is 4:0.1:1.
The dispersant is SRE-4760W aqueous dispersant.
The pigment is golden red.
The preparation method of the environment-friendly water-based ink comprises the following steps:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 30min at 1500 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
Example 2
Weighing the following raw materials in parts by weight:
35 parts of modified aqueous acrylic resin, 2 parts of modified nano calcium carbonate, 3 parts of hydroxypropyl cellulose sodium, 2 parts of dodecyl glucoside, 12 parts of pigment, 2 parts of dispersing agent and 15 parts of water.
The preparation method of the modified aqueous acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water with the weight being 5 times that of the modified nano particles, performing ultrasonic dispersion for 40min, adding chitosan and glacial acetic acid, and stirring for 25min to obtain a modified nano particle-chitosan solution; the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 2.5:1.2:2.
The preparation method of the modified nanoparticle comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water with the weight being 5 times that of the nano titanium dioxide and the nano silicon dioxide to form a dispersion liquid; adding a silane coupling agent into ethanol with the weight being 10 times that of the silane coupling agent, and adding nanocellulose for high-speed dispersion; and continuously adding the dispersion liquid, heating at 55 ℃ for reaction for 1.5 hours, cooling and drying to obtain the modified nano particles. The mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 2.5:1.2:1.2, and the addition amount of the silane coupling agent is 1.5 percent of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
(2) Dissolving beta-cyclodextrin in 10% sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin; the mass ratio of the beta-cyclodextrin, the sodium hydroxide solution and the polyethylene glycol is 1:2.5:1.2.
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, wherein the mass ratio of the acrylic acid to the hydroxypropyl methacrylate to the methyl methacrylate to the diacetone acrylamide to the glycerin fatty acid ester is 3:3:5:0.5:0.9, and the adding amount of the deionized water is 12 times of the mass of the acrylic acid; continuously adding the modified nanoparticle-chitosan solution and the modified beta-cyclodextrin, stirring and emulsifying to obtain a first mixed solution; the addition amounts of the nano silicon dioxide and the beta-cyclodextrin are respectively 4% and 6% of the mass of the acrylic acid.
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II; the mass ratio of the acrylic acid to the adipic acid dihydrazide to the azodiisobutyronitrile is 3:0.45:0.45; the deionized water was added in an amount of 4 times that of adipic acid dihydrazide.
(5) And heating the first mixed solution to 52 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 85 ℃, and reacting for 3 hours to obtain the modified aqueous acrylic resin.
The preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water with the weight being 10 times that of the nano calcium carbonate, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 10 minutes to obtain the modified nano calcium carbonate. The mass ratio of the nano calcium carbonate to the vinyl triethoxysilane to the sodium alginate is 4.5:0.12:1.2.
The dispersant is SRE-4760W aqueous dispersant.
The pigment is golden red.
The preparation method of the environment-friendly water-based ink comprises the following steps:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 30min at 1500 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
Example 3
Weighing the following raw materials in parts by weight:
40 parts of modified aqueous acrylic resin, 3 parts of modified nano calcium carbonate, 5 parts of hydroxypropyl cellulose sodium, 3 parts of dodecyl glucoside, 15 parts of pigment, 3 parts of dispersing agent and 20 parts of water.
The preparation method of the modified aqueous acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water with the weight being 5 times that of the modified nano particles, performing ultrasonic dispersion for 45min, adding chitosan and glacial acetic acid, and stirring for 25min to obtain a modified nano particle-chitosan solution; the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 3:1.5:2.5.
The preparation method of the modified nanoparticle comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water with the weight being 5 times that of the nano titanium dioxide and the nano silicon dioxide to form a dispersion liquid; adding a silane coupling agent into ethanol with the weight being 10 times that of the silane coupling agent, and adding nanocellulose for high-speed dispersion; and continuously adding the dispersion liquid, heating at 60 ℃ for reaction for 2 hours, cooling and drying to obtain the modified nano particles. The mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 3:1.5:1.5, and the addition amount of the silane coupling agent is 2% of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
(2) Dissolving beta-cyclodextrin in 10% sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin; the mass ratio of the beta-cyclodextrin, the sodium hydroxide solution and the polyethylene glycol is 1:3:1.5.
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, wherein the mass ratio of the acrylic acid to the hydroxypropyl methacrylate to the methyl methacrylate to the diacetone acrylamide to the glycerin fatty acid ester is 4:4:6:0.6:1, and the adding amount of the deionized water is 15 times of the mass of the acrylic acid; continuously adding the modified nanoparticle-chitosan solution and the modified beta-cyclodextrin, stirring and emulsifying to obtain a first mixed solution; the addition amounts of the nano silicon dioxide and the beta-cyclodextrin are respectively 5% and 7% of the mass of the acrylic acid.
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II; the mass ratio of the acrylic acid to the adipic acid dihydrazide to the azodiisobutyronitrile is 4:0.5:0.5; the addition amount of deionized water is 5 times that of adipic acid dihydrazide.
(5) And heating the first mixed solution to 55 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 90 ℃, and reacting for 5 hours to obtain the modified aqueous acrylic resin.
The preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water with the weight being 10 times that of the nano calcium carbonate, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 5-15 min to obtain the modified nano calcium carbonate. The mass ratio of the nano calcium carbonate to the vinyl triethoxysilane to the sodium alginate is 5:0.15:1.5.
The dispersant is SRE-4760W aqueous dispersant.
The pigment is golden red.
The preparation method of the environment-friendly water-based ink comprises the following steps:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 50min at 2000 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
Example 4
Weighing the following raw materials in parts by weight:
45 parts of modified aqueous acrylic resin, 4 parts of modified nano calcium carbonate, 7 parts of hydroxypropyl cellulose sodium, 4 parts of dodecyl glucoside, 18 parts of pigment, 4 parts of dispersing agent and 25 parts of water.
The preparation method of the modified aqueous acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water with the weight being 5 times that of the modified nano particles, performing ultrasonic dispersion for 50min, adding chitosan and glacial acetic acid, and stirring for 25min to obtain a modified nano particle-chitosan solution; the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 3.5:1.8:2.5.
The preparation method of the modified nanoparticle comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water with the weight being 5 times that of the nano titanium dioxide and the nano silicon dioxide to form a dispersion liquid; adding a silane coupling agent into ethanol with the weight being 10 times that of the silane coupling agent, and adding nanocellulose for high-speed dispersion; and continuously adding the dispersion liquid, heating at 65 ℃ for reaction for 2.5 hours, cooling and drying to obtain the modified nano particles. The mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 3.5:1.8:1.8, and the addition amount of the silane coupling agent is 2.5 percent of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
(2) Dissolving beta-cyclodextrin in 10% sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin; the mass ratio of the beta-cyclodextrin, the sodium hydroxide solution and the polyethylene glycol is 1:3.5:1.8.
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, wherein the mass ratio of the acrylic acid to the hydroxypropyl methacrylate to the methyl methacrylate to the diacetone acrylamide to the glycerin fatty acid ester is 5:5:7:0.7:1.1, and the adding amount of the deionized water is 18 times of the mass of the acrylic acid; continuously adding the modified nanoparticle-chitosan solution and the modified beta-cyclodextrin, stirring and emulsifying to obtain a first mixed solution; the addition amounts of the nano silicon dioxide and the beta-cyclodextrin are respectively 6% and 8% of the mass of the acrylic acid.
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II; the mass ratio of the acrylic acid to the adipic acid dihydrazide to the azodiisobutyronitrile is 5:0.5:0.5; the deionized water was added in an amount of 6 times that of adipic acid dihydrazide.
(5) And heating the first mixed solution to 58 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 95 ℃, and reacting for 7 hours to obtain the modified aqueous acrylic resin.
The preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water with the weight being 10 times that of the nano calcium carbonate, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 10 minutes to obtain the modified nano calcium carbonate. The mass ratio of the nano calcium carbonate to the vinyl triethoxysilane to the sodium alginate is 5:0.15:1.5.
The dispersant is SRE-4760W aqueous dispersant.
The pigment is golden red.
The preparation method of the environment-friendly water-based ink comprises the following steps:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 50min at 1800 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
Example 5
Weighing the following raw materials in parts by weight:
50 parts of modified aqueous acrylic resin, 5 parts of modified nano calcium carbonate, 8 parts of hydroxypropyl cellulose sodium, 5 parts of dodecyl glucoside, 20 parts of pigment, 5 parts of dispersing agent and 30 parts of water.
The preparation method of the modified aqueous acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water with the weight being 5 times that of the modified nano particles, performing ultrasonic dispersion for 60 minutes, adding chitosan and glacial acetic acid, and stirring for 30 minutes to obtain a modified nano particle-chitosan solution; the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 4:2:3.
The preparation method of the modified nanoparticle comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water with the weight being 5 times that of the nano titanium dioxide and the nano silicon dioxide to form a dispersion liquid; adding a silane coupling agent into ethanol with the weight being 10 times that of the silane coupling agent, and adding nanocellulose for high-speed dispersion; and continuously adding the dispersion liquid, heating at 70 ℃ for reaction for 3 hours, cooling and drying to obtain the modified nano particles. The mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 4:2:2, and the addition amount of the silane coupling agent is 3% of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
(2) Dissolving beta-cyclodextrin in 10% sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin; the mass ratio of the beta-cyclodextrin to the sodium hydroxide solution to the polyethylene glycol is 1:4:2.
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, wherein the mass ratio of the acrylic acid to the hydroxypropyl methacrylate to the methyl methacrylate to the diacetone acrylamide to the glycerin fatty acid ester is 6:6:8:0.8:1.2, and the adding amount of the deionized water is 20 times of the mass of the acrylic acid; continuously adding the modified nanoparticle-chitosan solution and the modified beta-cyclodextrin, stirring and emulsifying to obtain a first mixed solution; the addition amounts of the nano silicon dioxide and the beta-cyclodextrin are respectively 7% and 9% of the mass of the acrylic acid.
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II; the mass ratio of the acrylic acid to the adipic acid dihydrazide to the azodiisobutyronitrile is 6:0.6:0.6; the deionized water was added in an amount 7 times that of adipic acid dihydrazide.
(5) And heating the first mixed solution to 60 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 100 ℃, and reacting for 8 hours to obtain the modified aqueous acrylic resin.
The preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water with the weight being 10 times that of the nano calcium carbonate, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 15min to obtain the modified nano calcium carbonate. The mass ratio of the nano calcium carbonate to the vinyl triethoxysilane to the sodium alginate is 6:0.2:2.
The dispersant is SRE-4760W aqueous dispersant.
The pigment is golden red.
The preparation method of the environment-friendly water-based ink comprises the following steps:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 60min at 2000 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
Comparative example 1
The difference from example 1 is that: the procedure of example 1 was repeated except that the modified nano calcium carbonate was not added.
Comparative example 2
The difference from example 1 is that: the procedure of example 1 was repeated except that the "modified aqueous acrylic resin" was changed to "aqueous acrylic resin", that is, a commercially available aqueous acrylic resin was used.
Performance testing
The inks prepared in examples 1 to 5 and comparative examples 1 to 2 were subjected to performance tests, respectively, as follows:
(1) Ink color Change Performance test before and after drying
And (3) checking the color of the printing ink by using a GB/T13217.1-2009 liquid ink color checking method, continuously comparing the dried ink with a color card again after the ink is dried, and grading according to the difference of color change, wherein the color change is sequentially 0-10 minutes from large to small.
(2) Ink tinting strength performance test
The tinting strength of the printing ink was checked by using a GB/T13217.6-2008 liquid ink tinting strength test method, and data were recorded.
(3) Ink adhesion fastness Performance test
The attachment fastness of the printing ink is checked by using a GB/T13217.7-2008 liquid ink attachment fastness checking method, and the attachment force data is recorded.
The test results are shown in Table 1.
TABLE 1
As can be seen from Table 1, the inks of examples 1 to 5 were good in color score, ink tinting strength, and ink adhesion, and met the national standards. As can be seen from comparing examples 1 to 5 with comparative examples 1 to 3, the ink color score, ink tinting strength and ink adhesion fastness of examples 1 to 5 are all higher than those of comparative examples 1 to 2, so that it is demonstrated whether the ink color score, ink tinting strength and ink adhesion fastness are affected by using the modified aqueous acrylic resin and the modified nano calcium carbonate, and therefore, the ink color score, ink tinting strength and ink adhesion fastness of the ink can be improved by matching the modified aqueous acrylic resin and the modified nano calcium carbonate with sodium hydroxypropyl cellulose, dodecyl glucoside, pigment and dispersant, and the prepared ink meets the national standard, and is green and environment-friendly.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The environment-friendly water-based ink is characterized by comprising the following raw materials in parts by weight:
30-50 parts of modified aqueous acrylic resin, 1-5 parts of modified nano calcium carbonate, 2-8 parts of hydroxypropyl cellulose sodium, 1-5 parts of dodecyl glucoside, 10-20 parts of pigment, 1-5 parts of dispersing agent and 10-30 parts of water.
2. The environment-friendly water-based ink as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 35-45 parts of modified water-based acrylic resin, 2-4 parts of modified nano calcium carbonate, 3-7 parts of hydroxypropyl cellulose sodium, 2-4 parts of dodecyl glucoside, 12-18 parts of pigment, 2-4 parts of dispersing agent and 15-25 parts of water.
3. The environment-friendly water-based ink as claimed in claim 1, wherein the preparation method of the modified water-based acrylic resin comprises the following steps:
(1) Adding the modified nano particles into deionized water, performing ultrasonic dispersion for 30-60 min, adding chitosan and glacial acetic acid, and stirring for 20-30 min to obtain a modified nano particle-chitosan solution;
(2) Dissolving beta-cyclodextrin in sodium hydroxide solution, and continuously adding polyethylene glycol to obtain modified beta-cyclodextrin;
(3) Mixing acrylic acid, hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester and deionized water, continuously adding modified nanoparticle-chitosan solution and modified beta-cyclodextrin, stirring and emulsifying to obtain a mixed solution I;
(4) Dissolving adipic acid dihydrazide and azodiisobutyronitrile in deionized water to prepare a mixed solution II;
(5) Heating the first mixed solution to 50-60 ℃, dripping the second mixed solution into the first mixed solution, continuously heating to 80-100 ℃, and reacting for 2-8 hours to obtain the modified aqueous acrylic resin.
4. The environment-friendly water-based ink according to claim 3, wherein the preparation method of the modified nano particles comprises the following steps: dispersing nano titanium dioxide and nano silicon dioxide in water to form a dispersion liquid; adding a silane coupling agent into ethanol, and adding nanocellulose for high-speed dispersion; continuously adding the dispersion liquid, heating and reacting for 1-3 hours at 50-70 ℃, and cooling to obtain the modified nano particles.
5. The environment-friendly water-based ink according to claim 4, wherein the mass ratio of the nano silicon dioxide to the nano titanium dioxide to the nano cellulose is 2-4:1-2:1-2, and the addition amount of the silane coupling agent is 1-3% of the total mass of the nano titanium dioxide, the nano silicon dioxide and the nano cellulose.
6. The environment-friendly water-based ink according to claim 3, wherein the mass ratio of the modified nano particles to the chitosan to the glacial acetic acid is 2-4:1-2:1.5-3, and the mass ratio of the beta-cyclodextrin to the sodium hydroxide solution to the polyethylene glycol is 1:2-4:1-2.
7. The environment-friendly water-based ink according to claim 3, wherein the mass ratio of acrylic acid to hydroxypropyl methacrylate, methyl methacrylate, diacetone acrylamide, glycerin fatty acid ester, adipic acid dihydrazide and azodiisobutyronitrile is 2-6:2-6:4-8:0.4-0.8:0.8-1.2:0.4-0.6:0.4-0.6, and the addition amounts of nano silicon dioxide and beta-cyclodextrin are 3-7% and 5-9% of the mass of acrylic acid respectively.
8. The environment-friendly water-based ink as claimed in claim 3, wherein the preparation method of the modified nano calcium carbonate comprises the following steps: adding nano calcium carbonate into water, adding vinyl triethoxysilane, continuously adding sodium alginate, and performing ultrasonic dispersion for 5-15 min to obtain modified nano calcium carbonate.
9. The environment-friendly water-based ink as claimed in claim 8, wherein the mass ratio of nano calcium carbonate, vinyl triethoxysilane and sodium alginate is 4-6:0.1-0.2:1-2.
10. The preparation method of the environment-friendly water-based ink is characterized by comprising the following steps of:
s1, mixing modified aqueous acrylic resin, modified nano calcium carbonate and water, and stirring for 30-60 min at 1500-2000 r/min;
s2, continuously adding the hydroxypropyl cellulose sodium, the pigment and the dispersing agent, and continuously stirring and uniformly mixing.
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