CN109233437B - Water-based ink for PE film printing and preparation method thereof - Google Patents
Water-based ink for PE film printing and preparation method thereof Download PDFInfo
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- CN109233437B CN109233437B CN201811271494.1A CN201811271494A CN109233437B CN 109233437 B CN109233437 B CN 109233437B CN 201811271494 A CN201811271494 A CN 201811271494A CN 109233437 B CN109233437 B CN 109233437B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/103—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds of aldehydes, e.g. phenol-formaldehyde resins
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Abstract
The invention relates to the technical field of water-based ink, and particularly relates to water-based ink for PE film printing and a preparation method thereof. The water-based ink for printing the PE film comprises the following components: 30-35 parts of waterborne acrylic resin, 30-40 parts of waterborne amino resin, 5-10 parts of nano titanium dioxide, 5-10 parts of nano zinc oxide, 5-10 parts of modified nano calcium carbonate, 5-8 parts of nano silicon carbide, 5-7 parts of antioxidant, 2-3 parts of polyether modified organic silicon flatting agent, 2-5 parts of defoaming agent, 3-10 parts of pigment and 20-50 parts of deionized water. The water-based ink for printing the PE film is good in solvent resistance, wear resistance and scratch resistance; the wear resistance of the water-based ink is enhanced by adding the nano titanium dioxide, the nano zinc oxide and the nano silicon carbide; solves the problems of poor solvent resistance, wear resistance and scratch resistance of the water-based ink in the prior art.
Description
Technical Field
The invention relates to the technical field of water-based ink, and particularly relates to water-based ink for PE film printing and a preparation method thereof.
Background
The main solvent of the traditional plastic printing ink is toluene, xylene and the like, the evaporation speed is high, the printing adaptability is good, but greater potential safety hazards exist, on one hand, the benzene solvent is evaporated and discharged to the atmosphere, the atmospheric environment is polluted, the ozone layer is damaged, the space which human beings rely on to live is seriously damaged, on the other hand, the solvent residue is large, the benzene content exceeds the standard, the contents of plastic printed matters are polluted, and further, the harm is caused to the health of human bodies.
The water-based ink is water-based printing ink prepared by mixing water-based high-molecular emulsion, organic pigment, resin, surfactant and related additives through a chemical process and a physical process, and because the toxic organic solvent accounting for 30-70% of the traditional ink is replaced by water, the ink does not contain volatile organic solvent any more, so that the water-based ink has no adverse effect on the health of workers in the printing process, has no pollution to the atmospheric environment, eliminates the hidden danger of flammability and explosiveness of workplaces, and improves the safety. Meanwhile, compared with the solvent-based ink, the use cost of the water-based ink is saved by about 30 percent. The unique advantages of aqueous inks meet increasingly stringent environmental regulations, are becoming more and more favored by the packaging and printing community worldwide, and are expanding rapidly towards the journal printing industry. However, the water-based ink on the market at present has certain defects in solvent resistance, wear resistance, scratch resistance and the like.
Disclosure of Invention
The invention provides water-based ink for PE film printing and a preparation method thereof, aiming at solving the problems of poor solvent resistance, wear resistance and scratch resistance of the water-based ink in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention aims to provide water-based ink for printing PE films, which comprises the following components:
the acrylic resin is light in color, water white and transparent, the coating performance is excellent, the light resistance and the weather resistance are good, and the performances of heat resistance, excessive baking resistance, chemical resistance, corrosion resistance and the like are excellent; the water-based amino resin is used as a cross-linking agent of the water-based acrylic resin, so that a paint film of the ink has excellent gloss, color retention, hardness, chemical resistance, water resistance and weather resistance.
Preferably, the water-based ink for printing the PE film comprises the following components:
the preparation method of each part of modified nano calcium carbonate comprises the following steps:
(1) and (3) mixing the following components in percentage by mass: stirring and mixing 1 part of anhydrous ethanol solution of 20wt% of silane coupling agent with nano calcium carbonate, performing ultrasonic treatment for 20min, and performing vacuum drying to recover ethanol after the ultrasonic treatment is finished to prepare silane coupling agent modified nano calcium carbonate;
(2) adding the silane coupling agent modified nano calcium carbonate prepared in the step (1) into deionized water, adding sodium dodecyl sulfate, and performing ultrasonic dispersion for 30min to obtain an emulsion; the silane coupling agent modified nano calcium carbonate, the deionized water and the sodium dodecyl sulfate are mixed according to the mass ratio of 1: 10: 0.2;
(3) heating the emulsion prepared in the step (2) to 60 ℃ under the stirring condition, and under the nitrogen condition, according to the mass ratio of ammonium persulfate to silane coupling agent modified nano calcium carbonate of 5:1 adding ammonium persulfate;
(4) and continuously heating to 75 ℃, dropwise adding a butyl acrylate monomer according to the mass ratio of the butyl acrylate monomer to the silane coupling agent modified nano calcium carbonate of 15:1, after dropwise adding, carrying out heat preservation reaction for 1 hour, cooling, filtering, washing, drying and crushing to obtain the modified nano calcium carbonate.
The particle size of the nano calcium carbonate used in the step (1) is 100-200 nm.
The modified nano calcium carbonate is used as the filler of the ink, so that the prepared ink has good adhesive force, good printing performance and high stability; meanwhile, because the particles of the used filler are small, the product printed by the ink is smooth and has complete screen dots. When the grain diameter of the nano calcium carbonate is less than 100nm, the prepared ink has poor dispersibility and is easy to agglomerate; when the particle size of the nano calcium carbonate is larger than 200nm, the prepared ink has rough surface and insufficient smoothness.
According to the invention, butyl acrylate monomer is grafted on the surface of the nano calcium carbonate particles by adopting the method, so that the modified nano calcium carbonate with stable property and good compatibility with the water-based ink raw material is prepared, can be uniformly dispersed in a water-based ink system, and is beneficial to improving the comprehensive performance of the water-based ink. And the organic layer grafted on the surface of the nano calcium carbonate and the resin matrix form an elastic transition region to absorb impact energy when the water-based ink is impacted, so that the butyl acrylate monomer grafted on the surface of the nano calcium carbonate has the effect of synergistically increasing the scratch resistance of the water-based ink.
The particle size of the nano titanium dioxide is 50-120 nm; the particle size of the nano zinc oxide is 50-120 nm; the grain diameter of the nano silicon carbide is 50-120 nm.
The particle size of the nano titanium dioxide is 50-120 nm; the particle size of the nano zinc oxide is 50-120 nm; the grain size of the nano silicon carbide is 50-120 nm; the nano zinc oxide and the nano titanium dioxide are mixed according to the parts by weight to achieve the optimal complementary action, so that the ceramic coating has an antibacterial function.
The nano titanium dioxide, the nano zinc oxide and the nano silicon carbide are added, so that the wear resistance of the water-based ink is enhanced, the fluidity of the water-based ink is increased, the surface tension of substances is reduced, and the nano silicon dioxide, the nano zinc oxide and the nano silicon carbide are added into the water-based ink, so that the surface property of raw material particles of the water-based ink can be subjected to nano modification, and the raw material particles of the water-based ink are uniformly dispersed; can adjust the mobility of the water-based ink raw material particles, improve the dispersibility of the water-based ink raw material, shorten the dispersion time and further improve the caking property and the crack resistance of the water-based ink.
According to the invention, the nano titanium dioxide, the nano zinc oxide and the nano silicon carbide with the particle sizes are adopted, so that the compatibility of a water-based ink system is improved, and the prepared water-based ink has good wear resistance and stain resistance.
When the particle size of the nano silicon dioxide, the nano zinc oxide and the nano silicon carbide is too large, the prepared water-based ink has a rough surface, too large rigidity and reduced impact resistance, and when the particle size of the water-based ink is too small, the raw materials are easy to agglomerate when being mixed, so that the raw materials cannot be uniformly dispersed in a water-based ink system, and the wear resistance and the stain resistance of the prepared water-based ink are influenced.
Each part of the antioxidant consists of 10-20 parts of soybean oil, 5-10 parts of peanut oil and 5-10 parts of sunflower oil.
Preferably, each part of the antioxidant consists of 15 parts of soybean oil, 8 parts of peanut oil and 8 parts of sunflower oil.
The soybean oil, the peanut oil and the sunflower oil are used as antioxidants, raw materials are easy to purchase, the cost is low, and petroleum mineral oil components are not contained, so that the printing ink prepared by the method has good oxidation resistance; the antioxidant has the characteristics of easy degradation, low toxicity, low VOC and the like, and reduces the pollution to the environment.
The pigment is one or more of titanium dioxide, cobalt green, carbon black and iron oxide red.
The defoaming agent is ethylene glycol siloxane.
The invention also aims to provide a preparation method of the water-based ink for printing the PE film, which comprises the following steps:
(1) sequentially adding 30-35 parts of waterborne acrylic resin, 30-40 parts of waterborne amino resin, 5-10 parts of nano titanium dioxide, 5-10 parts of nano zinc oxide, 5-10 parts of modified nano calcium carbonate, 5-8 parts of nano silicon carbide, 5-7 parts of antioxidant, 2-3 parts of polyether modified organic silicon flatting agent, 2-5 parts of defoaming agent, 3-10 parts of pigment and 20-50 parts of deionized water into a feeding barrel, stirring at the rotating speed of 800r/min by using a high-speed dispersion machine, heating to 70 ℃, continuously stirring for 1h, and cooling to room temperature after the reaction is finished;
(2) and (2) grinding the material reacted in the step (1) by using a grinder to ensure that the particle size of the final material is less than 5 mu m, thus obtaining the water-based ink for printing the PE film.
Advantageous effects
1. The water-based ink for printing the PE film is good in solvent resistance, wear resistance and scratch resistance; the wear resistance of the water-based ink is enhanced by adding the nano titanium dioxide, the nano zinc oxide and the nano silicon carbide, and meanwhile, the water-based ink has an antibacterial function;
2. the modified nano calcium carbonate is used as the filler of the ink, so that the prepared ink has good adhesive force, good printing performance and high stability; meanwhile, because the particles of the used filler are small, the product printed by the ink is smooth and has complete screen dots. According to the invention, butyl acrylate monomer is grafted on the surface of the nano calcium carbonate particles by adopting the method, so that the modified nano calcium carbonate with stable property and good compatibility with the water-based ink raw material is prepared, can be uniformly dispersed in a water-based ink system, and is beneficial to improving the comprehensive performance of the water-based ink. And the organic layer grafted on the surface of the nano calcium carbonate and the silicone resin matrix form an elastic transition region to absorb impact energy when the water-based ink is impacted, so that the butyl acrylate monomer grafted on the surface of the nano calcium carbonate has the effect of synergistically increasing the scratch resistance of the water-based ink.
Detailed Description
The present invention will be further described with reference to the following examples for facilitating understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present invention.
Example 1
An aqueous ink comprising the following components:
the preparation method of each part of modified nano calcium carbonate comprises the following steps:
(1) and (3) mixing the following components in percentage by mass: stirring and mixing 1 part of anhydrous ethanol solution of 20wt% of silane coupling agent with nano calcium carbonate, performing ultrasonic treatment for 20min, and performing vacuum drying to recover ethanol after the ultrasonic treatment is finished to prepare silane coupling agent modified nano calcium carbonate;
(2) adding the silane coupling agent modified nano calcium carbonate prepared in the step (1) into deionized water, adding sodium dodecyl sulfate, and performing ultrasonic dispersion for 30min to obtain an emulsion; the silane coupling agent modified nano calcium carbonate, the deionized water and the sodium dodecyl sulfate are mixed according to the mass ratio of 1: 10: 0.2;
(3) heating the emulsion prepared in the step (2) to 60 ℃ under the stirring condition, and under the nitrogen condition, according to the mass ratio of ammonium persulfate to silane coupling agent modified nano calcium carbonate of 5:1 adding ammonium persulfate;
(4) and continuously heating to 75 ℃, dropwise adding a butyl acrylate monomer according to the mass ratio of the butyl acrylate monomer to the silane coupling agent modified nano calcium carbonate of 15:1, after dropwise adding, carrying out heat preservation reaction for 1 hour, cooling, filtering, washing, drying and crushing to obtain the modified nano calcium carbonate.
The particle size of the nano calcium carbonate used in the step (1) is 100 nm.
The particle size of the nano titanium dioxide is 50 nm; the particle size of the nano zinc oxide is 50 nm; the particle size of the nano silicon carbide is 50 nm;
each part of the antioxidant consists of 10 parts of soybean oil, 5 parts of peanut oil and 5 parts of sunflower oil.
The pigment is titanium dioxide.
The defoaming agent is ethylene glycol siloxane.
The preparation method of the water-based ink comprises the following steps:
(1) sequentially adding the water-based acrylic resin, the water-based amino resin, the nano titanium dioxide, the nano zinc oxide, the modified nano calcium carbonate, the nano silicon carbide, the antioxidant, the polyether modified organic silicon flatting agent, the defoaming agent, the pigment and the deionized water into a feeding barrel according to the weight parts, stirring by using a high-speed dispersion machine at the rotating speed of 800r/min, heating to 70 ℃, continuously stirring for 1h, and cooling to room temperature after the reaction is finished;
(2) and (2) grinding the material reacted in the step (1) by using a grinder to enable the particle size of the final material to be 3 mu m, thus obtaining the water-based ink for printing the PE film.
Example 2
An aqueous ink comprising the following components:
the preparation method of each part of modified nano calcium carbonate comprises the following steps:
(1) and (3) mixing the following components in percentage by mass: stirring and mixing 1 part of anhydrous ethanol solution of 20wt% of silane coupling agent with nano calcium carbonate, performing ultrasonic treatment for 20min, and performing vacuum drying to recover ethanol after the ultrasonic treatment is finished to prepare silane coupling agent modified nano calcium carbonate;
(2) adding the silane coupling agent modified nano calcium carbonate prepared in the step (1) into deionized water, adding sodium dodecyl sulfate, and performing ultrasonic dispersion for 30min to obtain an emulsion; the silane coupling agent modified nano calcium carbonate, the deionized water and the sodium dodecyl sulfate are mixed according to the mass ratio of 1: 10: 0.2;
(3) heating the emulsion prepared in the step (2) to 60 ℃ under the stirring condition, and under the nitrogen condition, according to the mass ratio of ammonium persulfate to silane coupling agent modified nano calcium carbonate of 5:1 adding ammonium persulfate;
(4) and continuously heating to 75 ℃, dropwise adding a butyl acrylate monomer according to the mass ratio of the butyl acrylate monomer to the silane coupling agent modified nano calcium carbonate of 15:1, after dropwise adding, carrying out heat preservation reaction for 1 hour, cooling, filtering, washing, drying and crushing to obtain the modified nano calcium carbonate.
The particle size of the nano calcium carbonate used in the step (1) is 150 nm.
The particle size of the nano titanium dioxide is 80 nm; the particle size of the nano zinc oxide is 80 nm; the particle size of the nano silicon carbide is 80 nm;
each part of the antioxidant consists of 15 parts of soybean oil, 8 parts of peanut oil and 8 parts of sunflower oil.
The pigment is iron oxide red.
The defoaming agent is ethylene glycol siloxane.
The preparation method of the water-based ink comprises the following steps:
(1) sequentially adding the water-based acrylic resin, the water-based amino resin, the nano titanium dioxide, the nano zinc oxide, the modified nano calcium carbonate, the nano silicon carbide, the antioxidant, the polyether modified organic silicon flatting agent, the defoaming agent, the pigment and the deionized water into a feeding barrel according to the weight parts, stirring by using a high-speed dispersion machine at the rotating speed of 800r/min, heating to 70 ℃, continuously stirring for 1h, and cooling to room temperature after the reaction is finished;
(2) and (2) grinding the material reacted in the step (1) by using a grinder to enable the particle size of the final material to be 5 mu m, thus obtaining the water-based ink for printing the PE film.
Example 3
The preparation method of each part of modified nano calcium carbonate comprises the following steps:
(1) and (3) mixing the following components in percentage by mass: stirring and mixing 1 part of anhydrous ethanol solution of 20wt% of silane coupling agent with nano calcium carbonate, performing ultrasonic treatment for 20min, and performing vacuum drying to recover ethanol after the ultrasonic treatment is finished to prepare silane coupling agent modified nano calcium carbonate;
(2) adding the silane coupling agent modified nano calcium carbonate prepared in the step (1) into deionized water, adding sodium dodecyl sulfate, and performing ultrasonic dispersion for 30min to obtain an emulsion; the silane coupling agent modified nano calcium carbonate, the deionized water and the sodium dodecyl sulfate are mixed according to the mass ratio of 1: 10: 0.2;
(3) heating the emulsion prepared in the step (2) to 60 ℃ under the stirring condition, and under the nitrogen condition, according to the mass ratio of ammonium persulfate to silane coupling agent modified nano calcium carbonate of 5:1 adding ammonium persulfate;
(4) and continuously heating to 75 ℃, dropwise adding a butyl acrylate monomer according to the mass ratio of the butyl acrylate monomer to the silane coupling agent modified nano calcium carbonate of 15:1, after dropwise adding, carrying out heat preservation reaction for 1 hour, cooling, filtering, washing, drying and crushing to obtain the modified nano calcium carbonate.
The particle size of the nano calcium carbonate used in the step (1) is 200 nm.
The particle size of the nano silicon dioxide is 120 nm; the particle size of the nano zinc oxide is 120 nm; the particle size of the nano silicon carbide is 120 nm;
each part of the antioxidant consists of 20 parts of soybean oil, 10 parts of peanut oil and 10 parts of sunflower oil.
The pigment is carbon black.
The defoaming agent is ethylene glycol siloxane.
The preparation method of the water-based ink comprises the following steps:
(1) sequentially adding the water-based acrylic resin, the water-based amino resin, the nano titanium dioxide, the nano zinc oxide, the modified nano calcium carbonate, the nano silicon carbide, the antioxidant, the polyether modified organic silicon flatting agent, the defoaming agent, the pigment and the deionized water into a feeding barrel according to the weight parts, stirring by using a high-speed dispersion machine at the rotating speed of 800r/min, heating to 70 ℃, continuously stirring for 1h, and cooling to room temperature after the reaction is finished;
(2) and (2) grinding the material reacted in the step (1) by using a grinder to enable the particle size of the final material to be 4 microns, and thus obtaining the water-based ink for printing the PE film.
Comparative example 1
Comparative example 1 differs from example 2 in that comparative example 1 does not add modified nanocalcium carbonate.
Comparative example 2
Comparative example 2 is different from example 2 in that the nano calcium carbonate used in the modification process of comparative example 2 has a particle size of 80 nm.
Comparative example 3
Comparative example 3 is different from example 2 in that the nano calcium carbonate used in the modification process of comparative example 3 has a particle size of 250 nm.
Comparative example 4 is a water-based ink of a type on the market.
Performance testing
The paint films obtained in examples 1 to 3 and comparative examples 1 to 4 were tested for adhesion, weather resistance, pencil hardness H, etc.;
as can be seen from the comparison of the table above, the paint film prepared by the water-based ink for printing the PE film has good solvent resistance, wear resistance and scratch resistance.
While there has been shown and described the fundamental principles of the invention and the principal features and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The water-based ink for printing the PE film is characterized by comprising the following components in parts by weight: comprises the following components:
30-35 parts of water-based acrylic resin
30-40 parts of water-based amino resin
5-10 parts of nano titanium dioxide
5-10 parts of nano zinc oxide
5-10 parts of modified nano calcium carbonate
5-8 parts of nano silicon carbide
5-7 parts of antioxidant
2-3 parts of polyether modified organic silicon flatting agent
2-5 parts of defoaming agent
3-10 parts of pigment
20-50 parts of deionized water;
the preparation method of each part of modified nano calcium carbonate comprises the following steps:
(1) and (3) mixing the following components in percentage by mass: stirring and mixing 1 part of anhydrous ethanol solution of 20wt% of silane coupling agent with nano calcium carbonate, carrying out ultrasonic treatment for 20min, and carrying out vacuum drying and recovering ethanol after the ultrasonic treatment to obtain silane coupling agent modified nano calcium carbonate, wherein the particle size of the nano calcium carbonate is 100-200 nm;
(2) adding the silane coupling agent modified nano calcium carbonate prepared in the step (1) into deionized water, adding sodium dodecyl sulfate, and performing ultrasonic dispersion for 30min to obtain an emulsion; the silane coupling agent modified nano calcium carbonate, the deionized water and the sodium dodecyl sulfate are mixed according to the mass ratio of 1: 10: 0.2;
(3) heating the emulsion prepared in the step (2) to 60 ℃ under the stirring condition, and under the nitrogen condition, according to the mass ratio of ammonium persulfate to silane coupling agent modified nano calcium carbonate of 5:1 adding ammonium persulfate;
(4) and continuously heating to 75 ℃, dropwise adding a butyl acrylate monomer according to the mass ratio of the butyl acrylate monomer to the silane coupling agent modified nano calcium carbonate of 15:1, after dropwise adding, carrying out heat preservation reaction for 1 hour, cooling, filtering, washing, drying and crushing to obtain the modified nano calcium carbonate.
2. The aqueous ink for printing a PE film according to claim 1, wherein: comprises the following components:
33 parts of water-based acrylic resin
35 parts of water-based amino resin
8 portions of nano titanium dioxide
8 portions of nano zinc oxide
Modified nano calcium carbonate 8 parts
7 parts of nano silicon carbide
6 portions of antioxidant
Polyether modified organic silicon flatting agent 2 parts
Defoaming agent 3 parts
6 portions of pigment
And 35 parts of deionized water.
3. The aqueous ink for printing a PE film according to claim 1, wherein: the particle size of the nano titanium dioxide is 50-120 nm; the particle size of the nano zinc oxide is 50-120 nm; the grain diameter of the nano silicon carbide is 50-120 nm.
4. The aqueous ink of claim 1, wherein: each part of the antioxidant consists of 10-20 parts of soybean oil, 5-10 parts of peanut oil and 5-10 parts of sunflower oil.
5. The aqueous ink for printing a PE film according to claim 4, wherein: each part of the antioxidant consists of 15 parts of soybean oil, 8 parts of peanut oil and 8 parts of sunflower oil.
6. The aqueous ink for printing a PE film according to claim 1, wherein: the pigment is one or more of titanium dioxide, cobalt green, carbon black and iron oxide red.
7. The aqueous ink for printing a PE film according to claim 1, wherein: the defoaming agent is ethylene glycol siloxane.
8. A method for preparing the aqueous ink for PE film printing according to any one of claims 1 to 7, comprising the steps of:
(1) sequentially adding 30-35 parts of waterborne acrylic resin, 30-40 parts of waterborne amino resin, 5-10 parts of nano titanium dioxide, 5-10 parts of nano zinc oxide, 5-10 parts of modified nano calcium carbonate, 5-8 parts of nano silicon carbide, 5-7 parts of antioxidant, 2-3 parts of polyether modified organic silicon flatting agent, 2-5 parts of defoaming agent, 3-10 parts of pigment and 20-50 parts of deionized water into a feeding barrel, stirring at the rotating speed of 800r/min by using a high-speed dispersion machine, heating to 70 ℃, continuously stirring for 1h, and cooling to room temperature after the reaction is finished;
(2) and (2) grinding the material reacted in the step (1) by using a grinder to ensure that the particle size of the final material is less than 5 mu m, thus obtaining the water-based ink for printing the PE film.
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| CN110343423B (en) * | 2019-07-19 | 2022-03-22 | 聚隆(福建)包装有限公司 | Environment-friendly water-based ink, environment-friendly high-strength damping corrugated carton and manufacturing method thereof |
| CN112795234A (en) * | 2020-12-26 | 2021-05-14 | 上海按玖印刷有限公司 | Alcohol-resistant water-based ink and preparation method thereof |
| CN113004746B (en) * | 2021-03-09 | 2022-06-07 | 邢台北人印刷有限公司 | PETG label production process for replacing OPS shrink label on special-shaped bottle |
| CN113583363B (en) * | 2021-08-10 | 2022-11-15 | 广东冠盛新材料股份有限公司 | Chlorine permeation resistant and mildew-proof membrane and preparation method and application thereof |
| CN115058150B (en) * | 2022-07-02 | 2023-04-28 | 苏州中亚油墨有限公司 | High-glossiness composite ink for film printing and preparation method thereof |
| CN115141307A (en) * | 2022-07-12 | 2022-10-04 | 南通拜森化工有限公司 | Water-based acrylic resin for PVC plastic ink and preparation method thereof |
| CN115725204A (en) * | 2022-11-29 | 2023-03-03 | 电子科技大学长三角研究院(湖州) | Nano printing and dyeing ink and processing device thereof |
| CN116554727A (en) * | 2023-03-31 | 2023-08-08 | 江西科态新材料科技有限公司 | Environment-friendly water-based ink and preparation method thereof |
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