CN115725207A - Boiling-resistant environment-friendly printing ink for packaging material and preparation method thereof - Google Patents
Boiling-resistant environment-friendly printing ink for packaging material and preparation method thereof Download PDFInfo
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- CN115725207A CN115725207A CN202111013802.2A CN202111013802A CN115725207A CN 115725207 A CN115725207 A CN 115725207A CN 202111013802 A CN202111013802 A CN 202111013802A CN 115725207 A CN115725207 A CN 115725207A
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- 239000005022 packaging material Substances 0.000 title claims abstract description 46
- 238000009835 boiling Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 19
- 239000002270 dispersing agent Substances 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229920000058 polyacrylate Polymers 0.000 claims abstract description 25
- 239000000049 pigment Substances 0.000 claims abstract description 24
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000000839 emulsion Substances 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 19
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000010025 steaming Methods 0.000 claims abstract description 11
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 19
- 229920002545 silicone oil Polymers 0.000 claims description 11
- 238000010411 cooking Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- -1 polydimethylsiloxane Polymers 0.000 claims description 10
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 6
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 239000004480 active ingredient Substances 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 150000004820 halides Chemical class 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000003999 initiator Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012855 volatile organic compound Substances 0.000 abstract description 6
- 239000002253 acid Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 235000019441 ethanol Nutrition 0.000 abstract description 3
- 230000007794 irritation Effects 0.000 abstract description 3
- 150000002576 ketones Chemical class 0.000 abstract description 3
- 239000003960 organic solvent Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001035 drying Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam 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
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The invention relates to the technical field of printing ink and discloses steaming-resistant environment-friendly printing ink for a packaging material, which comprises the following raw materials in parts by weight: 60-80 parts of aqueous polyurethane solution, 25-35 parts of polyacrylate emulsion, 10-15 parts of nano aluminum oxide, 10-20 parts of pigment, 1-3 parts of dispersing agent, 0.5-1 part of flatting agent, 0.4-0.8 part of defoaming agent, 1-3 parts of cross-linking agent, 20-30 parts of absolute ethyl alcohol and 3-5 parts of photoinitiator. The boiling-resistant environment-friendly printing ink for the packaging material has the advantages of large surface tension, good firm adhesion effect, small volume and good low-temperature resistance, an ink layer does not fall off or fade and the adhesion fastness does not change even in a strong acid or strong alkali environment, during production, the waterborne polyurethane resin is used as a connecting material of the UV printing ink, and the pigment and the photoinitiator are used as auxiliary materials, so that the raw material is environment-friendly, has low irritation, does not use a solvent and Volatile Organic Compounds (VOC), can meet the requirements of environmental protection and safety, takes polyacrylate emulsion and sewage ethanol as the solvent, does not contain benzene and organic solvents with large ketone pollution, and has small environmental pollution.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to steaming-resistant environment-friendly printing ink for a packaging material and a preparation method thereof.
Background
Ink is an important material for printing, and is used for expressing patterns and characters on a printing material through printing or inkjet. The ink comprises a main component and an auxiliary component which are uniformly mixed and repeatedly rolled to form a viscous colloidal fluid. The paint consists of a binder (resin), a pigment, a filler, an auxiliary agent, a solvent and the like. The printing ink is used for various printing of books, periodicals, packaging decoration, building decoration, electronic circuit boards and the like. As social demands increase, ink varieties and yields also expand and grow accordingly.
The boiling-resistant printing ink of the packaging materials in the market is manufactured by using harmful solvents (such as benzene), volatile substances of the boiling-resistant printing ink are remained on the surface of a packaging material and can permeate to the other side of the packaging material, namely a food layer, during boiling, so that the food quality is seriously influenced, the printing ink layer is easy to generate after high-temperature boiling, does not fall off, does not fade, has unchanged adhesion fastness, and causes unqualified products, and the packaging material is loaded at the moment, so that the economic loss is serious.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the steaming-resistant environment-friendly ink for the packaging material and the preparation method thereof, and solves the problems that the steaming-resistant ink for the packaging material in the current market is manufactured by using harmful solvents (such as benzene), volatile substances of the steaming-resistant ink can remain on the surface of a packaging material and can permeate to the other side of the packaging material, namely a food layer, so that the food quality is seriously influenced, the ink layer is easy to generate without falling off, fading and adhesion fastness after high-temperature steaming, the product is unqualified, and the economic loss is serious because the packaging material is loaded at the moment.
(II) technical scheme
The invention provides the following technical scheme: the boiling-resistant environment-friendly printing ink for the packaging material comprises the following raw materials in parts by weight: 60-80 parts of aqueous polyurethane solution, 25-35 parts of polyacrylate emulsion, 10-15 parts of nano aluminum oxide, 10-20 parts of pigment, 1-3 parts of dispersing agent, 0.5-1 part of flatting agent, 0.4-0.8 part of defoaming agent, 1-3 parts of cross-linking agent, 20-30 parts of absolute ethyl alcohol and 3-5 parts of photoinitiator.
Preferably, the feed comprises the following raw materials in parts by weight: 60 parts of aqueous polyurethane solution, 25 parts of polyacrylate emulsion, 10 parts of nano aluminum oxide, 10 parts of pigment, 1 part of dispersing agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 1 part of cross-linking agent, 20 parts of absolute ethyl alcohol and 3 parts of photoinitiator.
Preferably, 60-80 parts of aqueous polyurethane solution, 30 parts of polyacrylate emulsion, 12 parts of nano aluminum oxide, 15 parts of pigment, 2 parts of dispersing agent, 0.8 part of flatting agent, 0.6 part of defoaming agent, 2 parts of cross-linking agent, 25 parts of absolute ethyl alcohol and 4 parts of photoinitiator.
Preferably, the feed comprises the following raw materials in parts by weight: 80 parts of aqueous polyurethane solution, 35 parts of polyacrylate emulsion, 15 parts of nano aluminum oxide, 20 parts of pigment, 3 parts of dispersing agent, 1 part of flatting agent, 0.8 part of defoaming agent, 3 parts of cross-linking agent, 30 parts of absolute ethyl alcohol and 5 parts of photoinitiator
Preferably, the dispersant is a nonionic type dispersant, the active ingredient is 95%, the pH is 6.0 to 8.0, and the dispersant is free of alkylphenol ethoxylates, solvents and halides.
Can effectively prevent the sedimentation and the agglomeration of solid particles, reduce the surface tension of the pigment and improve the wettability of the pigment so as to accelerate the separation between the pigment and a product.
Preferably, the defoaming agent is emulsified silicone oil, pentaerythritol stearate or dimethyl silicone oil.
The defoaming agent can reduce the surface tension of water, solution, suspension and the like and prevent the formation of foam, and the emulsified silicone oil, pentaerythritol stearate or dimethyl silicone oil has excellent thermal oxidation stability, is nontoxic, has low foamability and strong anti-foaming performance, and can play a defoaming effect
Preferably, the leveling agent is polydimethylsiloxane, polyether modified polysiloxane or polyacrylate copolymer.
The leveling agent can promote the printing ink to form a flat, smooth and uniform coating film in the drying film-forming process, can effectively reduce the surface tension of the coating liquid, and improves the leveling property and uniformity of the coating liquid. Can improve the permeability of the coating ink, reduce the possibility of generating spots and stains during brushing, increase the coverage and ensure that the film is formed uniformly and naturally. When the product is matched with a dispersant for use, the problems of flooding, blooming and the like of the product can be effectively prevented.
The invention aims to solve another technical problem of providing cooking-resistant environment-friendly printing ink for packaging materials and a preparation method thereof, wherein the cooking-resistant environment-friendly printing ink comprises the following steps:
s1, weighing the materials one by one according to parts by weight for later use;
s2, mixing the aqueous polyurethane resin, the polyacrylate emulsion, the initiator and the absolute ethyl alcohol, gradually heating to 60 ℃, and stirring and dispersing at a constant temperature of 2800-3200r/min for 1-2 hours;
s3, adding the mixture obtained in the step S2 into a sanding container, then respectively adding the pigment and the nano-alumina into the sanding container, pre-dispersing, increasing the rotating speed to 2200r/min, and performing sanding dispersion for 40-80 minutes;
s4, heating the mixture obtained in the step S3 to 70-90 ℃ from room temperature in a stirring state, simultaneously dropwise adding a dispersing agent, a leveling agent and a defoaming agent, and stirring for 2 hours at a rotating speed of 1500-1800 r/min;
s5, reducing the temperature to 30 ℃, dropwise adding the cross-linking agent, and continuously stirring for 5-10min
And S6, adding the mixture obtained in the step S5 to a three-roller machine, grinding until the fineness is less than 18 mu m, and filtering to remove impurities to obtain the cooking-resistant environment-friendly ink for the packaging material.
(III) advantageous effects
Compared with the prior art, the invention provides the steaming-resistant environment-friendly printing ink for the packaging material and the preparation method thereof, and the steaming-resistant environment-friendly printing ink has the following beneficial effects:
1. the boiling-resistant environment-friendly printing ink for the packaging material and the preparation method thereof use polyacrylate emulsion and sewage ethanol as solvents during production, do not contain organic solvents with large pollution of benzene and ketone, and have small environmental pollution
2. The boiling-resistant environment-friendly ink for the packaging material and the preparation method thereof are characterized in that the waterborne polyurethane resin is a connecting material of the UV ink, the pigment and the photoinitiator are used as auxiliary materials, the raw materials are environment-friendly and have low irritation, no solvent or Volatile Organic Compound (VOC) is used, and the environment-friendly and safety requirements can be met
3. According to the cooking-resistant environment-friendly printing ink for the packaging material and the preparation method thereof, the nano-alumina is added during production to enhance the comprehensive properties of the printing ink, including water resistance, high temperature resistance and adhesion, and the printing ink also has a color fixing effect.
4. The steam-resistant environment-friendly ink for the packaging material and the preparation method thereof are characterized in that a cross-linking agent is added during production, and in the drying process, the polyurethane emulsion is cross-linked into a net structure, so that the water resistance, high temperature resistance and bonding property of the ink can be obviously improved.
5. The boiling-resistant environment-friendly ink for the packaging material and the preparation method thereof have the advantages of reasonable component composition design of printing ink, simple and energy-saving preparation method, environmental friendliness, high drying speed, water resistance, solvent resistance and good wear resistance.
6. Compared with the traditional printing ink on the market, the boiling-resistant environment-friendly printing ink for the packaging material has the advantages of large surface tension, good firm adhesion effect, small volume and good low-temperature resistance, and the ink layer does not fall off or fade and has unchanged adhesion fastness even in the environment of strong acid or strong alkali.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The first embodiment is as follows:
the boiling-resistant environment-friendly printing ink for the packaging material is characterized by comprising the following raw materials in parts by weight: 60 parts of aqueous polyurethane solution, 25 parts of polyacrylate emulsion, 10 parts of nano aluminum oxide, 10 parts of pigment, 1 part of dispersing agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 1 part of cross-linking agent, 20 parts of absolute ethyl alcohol and 3 parts of photoinitiator.
Further, the dispersant was a nonionic type dispersant, 95% active ingredient, pH 6.0, and free of alkylphenol ethoxylate, solvent, and halide.
Further, the defoaming agent is emulsified silicone oil, pentaerythritol stearate or dimethyl silicone oil.
Further, the leveling agent is polydimethylsiloxane, polyether modified polysiloxane or polyacrylate copolymer.
Further, the method comprises the following steps:
s1, weighing the materials one by one according to parts by weight for later use;
s2, mixing the aqueous polyurethane resin, the polyacrylate emulsion, the initiator and the absolute ethyl alcohol, gradually heating to 60 ℃, and stirring and dispersing at a constant temperature of 2800r/min for 1h;
s3, adding the mixture obtained in the step S2 into a sanding container, then respectively adding the pigment and the nano-alumina into the sanding container, pre-dispersing, increasing the rotating speed to 2200r/min, and sanding and dispersing for 40 minutes;
s4, heating the mixture obtained in the step S3 to 70 ℃ from room temperature in a stirring state, simultaneously dropwise adding a dispersing agent, a leveling agent and a defoaming agent, and stirring for 2 hours at a rotating speed of 1500 r/min;
s5, reducing the temperature to 30 ℃, dropwise adding the cross-linking agent, and continuously stirring for 5min
And S6, adding the mixture obtained in the step S5 to a three-roller machine, grinding until the fineness is less than 18 mu m, and filtering to remove impurities to obtain the cooking-resistant environment-friendly ink for the packaging material.
Example two:
the boiling-resistant environment-friendly printing ink for the packaging material is characterized by comprising 60-80 parts of aqueous polyurethane solution, 30 parts of polyacrylate emulsion, 12 parts of nano aluminum oxide, 15 parts of pigment, 2 parts of dispersing agent, 0.8 part of flatting agent, 0.6 part of defoaming agent, 2 parts of cross-linking agent, 25 parts of absolute ethyl alcohol and 4 parts of photoinitiator.
Further, the dispersing agent is a nonionic dispersing agent, the active ingredient is 95%, the pH value is 6.0-8.0, and the dispersing agent does not contain alkylphenol ethoxylate, a solvent and halide.
Further, the defoaming agent is emulsified silicone oil, pentaerythritol stearate or dimethyl silicone oil.
Further, the leveling agent is polydimethylsiloxane, polyether modified polysiloxane or polyacrylate copolymer.
Further, the method comprises the following steps:
s1, weighing the materials one by one according to parts by weight for later use;
s2, mixing the waterborne polyurethane resin, the polyacrylate emulsion, the initiator and the absolute ethyl alcohol, gradually heating to 60 ℃, and stirring and dispersing at the constant temperature of 3000r/min for 1.5 hours;
s3, adding the mixture obtained in the step S2 into a sanding container, then respectively adding the pigment and the nano-alumina into the sanding container, pre-dispersing, increasing the rotating speed to 2200r/min, and performing sanding dispersion for 60 minutes;
s4, heating the mixture obtained in the step S3 to 80 ℃ from room temperature in a stirring state, simultaneously dropwise adding a dispersing agent, a leveling agent and a defoaming agent, and stirring for 2 hours at a rotating speed of 1650 r/min;
s5, reducing the temperature to 30 ℃, dropwise adding the cross-linking agent, and continuously stirring for 7.5min
S6, adding the mixture obtained in the step S5 to a three-roller machine, grinding until the fineness is less than 18 mu m, and filtering to remove impurities to obtain the steaming-resistant environment-friendly ink for the packaging material
Example three:
the boiling-resistant environment-friendly printing ink for the packaging material is characterized by comprising the following raw materials in parts by weight: 80 parts of aqueous polyurethane solution, 35 parts of polyacrylate emulsion, 15 parts of nano aluminum oxide, 20 parts of pigment, 3 parts of dispersing agent, 1 part of flatting agent, 0.8 part of defoaming agent, 3 parts of cross-linking agent, 30 parts of absolute ethyl alcohol and 5 parts of photoinitiator
Further, the dispersant is a nonionic type dispersant, has 95% of active ingredients and a pH of 8.0, and does not contain alkylphenol ethoxylates, a solvent and a halide.
Further, the defoaming agent is emulsified silicone oil, pentaerythritol stearate or dimethyl silicone oil.
Further, the leveling agent is polydimethylsiloxane, polyether modified polysiloxane or polyacrylate copolymer.
Further, the method comprises the following steps:
s1, weighing the materials one by one according to parts by weight for later use;
s2, mixing the waterborne polyurethane resin, the polyacrylate emulsion, the initiator and the absolute ethyl alcohol, gradually heating to 60 ℃, and stirring and dispersing at a constant temperature of 3200r/min for 2 hours;
s3, adding the mixture obtained in the step S2 into a sanding container, then respectively adding the pigment and the nano-alumina into the sanding container, pre-dispersing, increasing the rotating speed to 2200r/min, and sanding and dispersing for 80 minutes;
s4, heating the mixture obtained in the step S3 to 90 ℃ from room temperature in a stirring state, simultaneously dropwise adding a dispersing agent, a leveling agent and a defoaming agent, and stirring at a rotation speed of 1800r/min for 2 hours;
s5, reducing the temperature to 30 ℃, dropwise adding the cross-linking agent, and continuously stirring for 10min
S6, adding the mixture obtained in the step S5 into a three-roller machine, grinding the mixture until the fineness is less than 18 mu m, and filtering the mixture to remove impurities to obtain the steam-resistant environment-friendly ink for the packaging material,
50 parts of each of the inks prepared in examples 1 to 3 was printed on a plastic substrate such as PET, and the performance of the inks was measured by taking the average value, and 50 parts of the ink commonly available on the market was printed on a plastic substrate such as PET as a comparison list, as shown in the following table:
as can be seen from the above table, the steam-resistant environment-friendly ink for the packaging material is printed on plastic substrates such as PET and the like, compared with the traditional ink on the market, the steam-resistant environment-friendly ink has the advantages of large surface tension, good adhesion firmness effect, small volume and good low-temperature resistance, and an ink layer does not fall off or fade and has unchanged adhesion fastness even in a strong acid or strong alkali environment. The invention has the beneficial effects that: the boiling-resistant environment-friendly printing ink for the packaging material and the preparation method thereof use polyacrylate emulsion and sewage ethanol as solvents during production, do not contain organic solvents with large pollution of benzene and ketone, and have small pollution to the environment.
According to the boiling-resistant environment-friendly ink for the packaging material and the preparation method thereof, the waterborne polyurethane resin is a connecting material of the UV ink, the pigment and the photoinitiator are used as auxiliary materials, the raw materials are environment-friendly and have low irritation, no solvent or Volatile Organic Compound (VOC) is used, and the requirements of environment protection and safety can be met.
According to the cooking-resistant environment-friendly printing ink for the packaging material and the preparation method thereof, the nano-alumina is added during production to enhance the comprehensive properties of the printing ink, including water resistance, high temperature resistance and adhesion, and the printing ink also has a color fixing effect.
The steam-resistant environment-friendly ink for the packaging material and the preparation method thereof are characterized in that a cross-linking agent is added during production, and in the drying process, the polyurethane emulsion is cross-linked into a net structure, so that the water resistance, high temperature resistance and bonding property of the ink can be obviously improved.
The boiling-resistant environment-friendly ink for the packaging material and the preparation method thereof have the advantages of reasonable component composition design of printing ink, simple and energy-saving preparation method, environmental friendliness, high drying speed, water resistance, solvent resistance and good wear resistance.
Compared with the traditional printing ink on the market, the boiling-resistant environment-friendly printing ink for the packaging material has the advantages of large surface tension, good firm adhesion effect, small volume and good low-temperature resistance, and the ink layer does not fall off or fade and has unchanged adhesion fastness even in the environment of strong acid or strong alkali.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The boiling-resistant environment-friendly printing ink for the packaging material is characterized by comprising the following raw materials in parts by weight: 60-80 parts of aqueous polyurethane solution, 25-35 parts of polyacrylate emulsion, 10-15 parts of nano aluminum oxide, 10-20 parts of pigment, 1-3 parts of dispersing agent, 0.5-1 part of flatting agent, 0.4-0.8 part of defoaming agent, 1-3 parts of cross-linking agent, 20-30 parts of absolute ethyl alcohol and 3-5 parts of photoinitiator.
2. The cooking-resistant environment-friendly ink for the packaging material as claimed in claim 1, characterized by comprising the following raw materials in parts by weight: 60 parts of aqueous polyurethane solution, 25 parts of polyacrylate emulsion, 10 parts of nano aluminum oxide, 10 parts of pigment, 1 part of dispersing agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 1 part of cross-linking agent, 20 parts of absolute ethyl alcohol and 3 parts of photoinitiator.
3. The steaming-resistant environment-friendly ink for packaging materials as claimed in claim 1, wherein the ink comprises 60-80 parts of aqueous polyurethane solution, 30 parts of polyacrylate emulsion, 12 parts of nano aluminum oxide, 15 parts of pigment, 2 parts of dispersant, 0.8 part of leveling agent, 0.6 part of defoaming agent, 2 parts of cross-linking agent, 25 parts of absolute ethyl alcohol and 4 parts of photoinitiator.
4. The cooking-resistant environment-friendly ink for the packaging material as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 80 parts of aqueous polyurethane solution, 35 parts of polyacrylate emulsion, 15 parts of nano aluminum oxide, 20 parts of pigment, 3 parts of dispersing agent, 1 part of flatting agent, 0.8 part of defoaming agent, 3 parts of crosslinking agent, 30 parts of absolute ethyl alcohol and 5 parts of photoinitiator.
5. The retortable, environmentally friendly ink for packaging material as claimed in claim 1, wherein the dispersant is a nonionic dispersant, has an active ingredient of 95%, has a pH of 6.0 to 8.0, and is free of alkylphenol ethoxylates, solvents and halides.
6. The cooking-resistant environment-friendly ink for packaging materials as claimed in claim 1, wherein the defoaming agent is silicone emulsion, pentaerythritol stearate or dimethyl silicone oil.
7. The steaming-resistant environment-friendly ink for packaging materials as claimed in claim 1, wherein the leveling agent is polydimethylsiloxane, polyether modified polysiloxane or polyacrylate copolymer.
8. The boiling-resistant environment-friendly ink for the packaging material and the preparation method thereof according to the claims 1-7 are characterized by comprising the following steps:
s1, weighing the materials one by one according to parts by weight for later use;
s2, mixing the aqueous polyurethane resin, the polyacrylate emulsion, the initiator and the absolute ethyl alcohol, gradually heating to 60 ℃, and stirring and dispersing at a constant temperature of 2800-3200r/min for 1-2 hours;
s3, adding the mixture obtained in the step S2 into a sanding container, then respectively adding the pigment and the nano-alumina into the sanding container, pre-dispersing, increasing the rotating speed to 2200r/min, and performing sanding dispersion for 40-80 minutes;
s4, heating the mixture obtained in the step S3 to 70-90 ℃ from room temperature in a stirring state, simultaneously dropwise adding a dispersing agent, a leveling agent and a defoaming agent, and stirring for 2 hours at a rotating speed of 1500-1800 r/min;
s5, reducing the temperature to 30 ℃, dropwise adding the cross-linking agent, and continuously stirring for 5-10min
And S6, adding the mixture obtained in the step S5 to a three-roller machine, grinding until the fineness is less than 18 mu m, and filtering to remove impurities to obtain the cooking-resistant environment-friendly ink for the packaging material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111013802.2A CN115725207A (en) | 2021-08-31 | 2021-08-31 | Boiling-resistant environment-friendly printing ink for packaging material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111013802.2A CN115725207A (en) | 2021-08-31 | 2021-08-31 | Boiling-resistant environment-friendly printing ink for packaging material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115725207A true CN115725207A (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111013802.2A Withdrawn CN115725207A (en) | 2021-08-31 | 2021-08-31 | Boiling-resistant environment-friendly printing ink for packaging material and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN115725207A (en) |
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2021
- 2021-08-31 CN CN202111013802.2A patent/CN115725207A/en not_active Withdrawn
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Application publication date: 20230303 |