CN108300230B - Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof - Google Patents
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 229920000139 polyethylene terephthalate Polymers 0.000 title claims abstract description 44
- 239000005020 polyethylene terephthalate Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 35
- -1 polyethylene terephthalate Polymers 0.000 title claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 149
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 75
- 239000003921 oil Substances 0.000 claims abstract description 63
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 49
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 40
- 239000008213 purified water Substances 0.000 claims abstract description 37
- 239000004005 microsphere Substances 0.000 claims abstract description 35
- 229920002635 polyurethane Polymers 0.000 claims abstract description 35
- 239000004814 polyurethane Substances 0.000 claims abstract description 35
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 31
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 30
- 150000001718 carbodiimides Chemical class 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims description 68
- 238000003756 stirring Methods 0.000 claims description 62
- 239000000203 mixture Substances 0.000 claims description 33
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 9
- 239000008236 heating water Substances 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 14
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 64
- 238000007639 printing Methods 0.000 description 52
- 239000011248 coating agent Substances 0.000 description 22
- 238000000576 coating method Methods 0.000 description 22
- 230000008033 biological extinction Effects 0.000 description 16
- 238000004132 cross linking Methods 0.000 description 16
- 239000003431 cross linking reagent Substances 0.000 description 16
- 238000001035 drying Methods 0.000 description 14
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 14
- 239000002904 solvent Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000003678 scratch resistant effect Effects 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000006224 matting agent Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N propyl acetate Chemical compound CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a novel water-based environment-friendly material for replacing a PET (polyethylene terephthalate) matte film and a preparation method thereof, and the novel water-based environment-friendly material for replacing the PET matte film comprises a raw material A, a raw material B and a raw material C, wherein the raw material A comprises the following components: the water-based sanding oil comprises water-based sanding gloss oil, purified water, polyurethane wear-resistant microspheres, nano silicon dioxide, an organic flatting agent and a flatting agent, wherein the raw material B comprises the purified water, the raw material C comprises carbodiimide and polyethylenimine, and the water-based sanding oil comprises water-based polyurethane resin, ethanol and a film-forming aid; the main component of the novel water-based environment-friendly material for replacing the PET matte film prepared by the invention is a water-based substance, so that the novel water-based environment-friendly material does not harm human bodies, and has the advantages of strong adhesive force, low matte degree, good appearance effect, suitability for popularization and better product quality.
Description
Technical Field
The invention belongs to the field of printing ink, and particularly relates to a novel water-based environment-friendly material for replacing a PET (polyethylene terephthalate) matte film and a preparation method thereof.
Background
With the development of economy and the progress of science and technology, people have higher and higher requirements on the appearance effect of products, the traditional smooth surface materials cannot meet the aesthetic feeling of people, and the matte film is widely applied to various packaging manufacturers due to the characteristics of special matte effect, good leveling property, good hand feeling and the like. However, the polycyclic aromatic hydrocarbon contained in the conventional printing ink is a volatile solvent and harmful to the human body, and the volatile organic compound contained therein not only increases air pollution but also causes harm to the human body.
Chinese patent CN201510267025.2 discloses a treatment-free frosted varnish ink for gravure printing of PET films, which consists of varnish, a diluent and a curing agent, wherein the varnish comprises the following components in parts by weight: diluent agent: the weight ratio of the curing agent is 10: 4-18: 0.5, the gloss oil consists of the following components in percentage by weight: 25-40% of polyurethane resin liquid, 3-7% of butyl acetate, 8-12% of ethyl acetate, 8-25% of inorganic pigment, 1-3% of PE wax powder, 2-4% of dispersing agent, 15-20% of modifying material and 20-35% of n-propyl acetate. The ink can use a common PET optical film to realize partial matte or total matte through printing, can also adjust the matte degree of a product to be freely controlled at 2-15 degrees, but has poor matte effect and is not suitable for packaging high-grade products.
Chinese patent CN104130675A discloses scratch-resistant UV matte oil for a matte film and a preparation method thereof, wherein the scratch-resistant UV matte oil for the matte film is composed of 5-15 parts of epoxy acrylic resin, 20-35 parts of modified acrylic resin, 50-65 parts of acrylic monomer, 10-15 parts of photoinitiator, 5-15 parts of flatting agent and 1-5 parts of auxiliary agent, but more additives are added, so that the scratch-resistant UV matte oil for the matte film has great influence on production and process, namely use of downstream enterprises, and has poor environmental protection performance.
Disclosure of Invention
Aiming at the problems, the invention provides a novel water-based environment-friendly material for replacing a PET (polyethylene terephthalate) matte film. The raw material is environment-friendly and healthy, has good matte effect and simple production process.
The technical scheme adopted by the invention for solving the problems is as follows: the novel matte film aqueous environment-friendly material comprises a raw material A, a raw material B and a raw material C, wherein the raw material A comprises the following components: the water-based sanding oil comprises water-based sanding gloss oil, purified water, polyurethane wear-resistant microspheres, nano silicon dioxide, an organic flatting agent and a flatting agent, wherein the raw material B comprises the purified water, the raw material C comprises carbodiimide and polyethylenimine, and the water-based sanding oil comprises water-based polyurethane resin, ethanol and a film-forming auxiliary agent.
Further, the raw material A comprises the following components in parts by weight: 66-89 parts of water-based frosted gloss oil, 8-19 parts of purified water, 1-6 parts of polyurethane wear-resistant microspheres, 2-9 parts of nano silicon dioxide, 1-9 parts of an organic flatting agent and 1-3 parts of a flatting agent.
Further, the raw material A comprises the following components in parts by weight: 71-85 parts of water-based frosted gloss oil, 10-17 parts of purified water, 2-5 parts of polyurethane wear-resistant microspheres, 3-8 parts of nano silicon dioxide, 3-7 parts of an organic flatting agent and 1-2 parts of a flatting agent.
Further, the raw material A comprises the following components in parts by weight: 76-79 parts of water-based frosted gloss oil, 12-15 parts of purified water, 3-4 parts of polyurethane wear-resistant microspheres, 5-7 parts of nano silicon dioxide, 5-6 parts of an organic flatting agent and 1-2 parts of a flatting agent.
Furthermore, the raw material A comprises the following components in parts by weight: 77 parts of water-based frosted gloss oil, 13 parts of purified water, 3 parts of polyurethane wear-resistant microspheres, 6 parts of nano silicon dioxide, 5 parts of an organic flatting agent and 2 parts of a flatting agent.
Further, the raw material C comprises the following components in parts by weight: 0.2 to 1.0 part of carbodiimide and 0.8 to 2.0 parts of polyethylenimine.
Furthermore, the raw material C comprises the following components in parts by weight: 0.6 part of carbodiimide and 1.4 parts of polyethylenimine.
Further, the mixing ratio of the raw material A, the raw material B and the raw material C is 15: 2-10: 2 in weight ratio.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide is added, so that the dispersibility of the film-forming aid and the polyurethane wear-resistant microspheres can be improved, the color uniformity of the product is improved, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film when the silicon dioxide is added into ink, so that the light reflection is reduced, and an extinction appearance is obtained; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
the polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
And step S04, weighing the raw material A, the raw material B and the raw material C according to the weight ratio of 15: 2-10: 2 when in use, and adding the raw material C into the mixture of the raw material A and the raw material B.
Further, in the step S04, the mixing process of the raw material a and the raw material B is as follows: dividing the raw materials A and B into 2 parts respectively, adding one part of B, stirring and mixing for 2 minutes, then adding one part of A, stirring and mixing for 2 minutes, then adding one part of B, and mixing for 2 minutes, then adding one part of A.
The invention has the advantages that:
1. the main component is a water-based substance, is an environment-friendly material, is environment-friendly and healthy, and does not cause harm to human bodies;
2. according to the matte film, the organic flatting agent and the inorganic flatting agent are added, the inorganic flatting agent is uniformly dispersed in the ink to realize flatting by a physical means, the organic flatting agent can participate in crosslinking, and the wear resistance and scratch resistance of the matte film can be improved while the flatting is realized;
3. the leveling agent is added, so that the gloss oil can keep excellent smoothness and stability, and the production efficiency is effectively improved;
4. the preparation method of the novel water-based environment-friendly material for replacing the PET matte film is simple and convenient, has low manufacturing cost and is convenient for large-scale popularization.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to specific embodiments.
Detailed Description
The invention is described in detail below with reference to examples, but the invention can be implemented in many different ways as defined and covered by the claims.
Example 1
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: water-based frosted gloss oil 77, purified water 13, polyurethane wear-resistant microspheres 3, nano silicon dioxide 6, an organic flatting agent 5 and a flatting agent 2;
the raw material B comprises the following components in parts by weight: 2, purified water;
the raw material C comprises the following components in parts by weight: 0.5 of carbodiimide and 1.5 of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, in addition, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light rays and obtain an extinction appearance; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
step S04, weighing 15kg of raw material A, 4kg of raw material B and 2kg of raw material C according to the weight ratio of 15:2:2 when in use, adding 1kg of B into 7.5kg of raw material A, stirring and mixing for 2 minutes, adding 7.5kg of A, stirring and mixing for 2 minutes, adding 1kg of B, finally adding 2kg of raw material C into the mixture of raw material A and raw material B, and performing ultrasonic oscillation for 20 minutes.
The polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 200 m/min, the printing plate depth is 40 microns, and the oven temperature is 75 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 40 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Example 2
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: water-based frosted gloss oil 66, purified water 10, polyurethane wear-resistant microspheres 5, nano silicon dioxide 8, an organic flatting agent 1 and a flatting agent 2;
the raw material B comprises the following components in parts by weight: 2, purified water;
the raw material C comprises the following components in parts by weight: 0.2 parts of carbodiimide and 1.8 parts of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, in addition, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light rays and obtain an extinction appearance; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
the polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
And step S04, weighing the raw materials A, B and C according to the weight ratio of 15:2:2 when in use, wherein the raw materials A is 15kg, the raw materials B is 2kg and the raw materials C is 2kg, adding 2kg of B into A, stirring and mixing for 2 minutes, adding 2kg of C, and carrying out ultrasonic oscillation and mixing for 20 minutes.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 255 m/min, the printing plate depth is 40 microns, and the oven temperature is 75 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 40 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Example 3
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: water-based frosted gloss oil 76, purified water 12, polyurethane wear-resistant microspheres 2, nano silicon dioxide 3 and a flatting agent 1;
the raw material B comprises the following components in parts by weight: 4, purified water;
the raw material C comprises the following components in parts by weight: 0.4 of carbodiimide and 1.6 of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light so as to obtain an extinction appearance.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
step S04, weighing 15kg of raw material A, 4kg of raw material B and 2kg of raw material C according to the weight ratio of 15:4:2 when in use, adding 2kg of B into 7.5kg of raw material A, stirring and mixing for 2 minutes, adding 7.5kg of A, stirring and mixing for 2 minutes, adding 2kg of B, finally adding 2kg of raw material C into the mixture of raw material A and raw material B, and performing ultrasonic oscillation for 20 minutes.
The polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 200 m/min, the printing plate depth is 35 microns, and the oven temperature is 60 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 50 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Example 4
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: 85 parts of water-based frosted gloss oil, 15 parts of purified water, 3 parts of polyurethane wear-resistant microspheres, 7 parts of nano silicon dioxide, 3 parts of an organic flatting agent and 1 part of a flatting agent;
the raw material B comprises the following components in parts by weight: 10 parts of purified water;
the raw material C comprises the following components in parts by weight: 1.0 of carbodiimide and 1.0 of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, in addition, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light rays and obtain an extinction appearance; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
step S04, weighing 15kg of raw material A, 6kg of raw material B and 2kg of raw material C according to the weight ratio of 15:6:2 when in use, adding 3kg of raw material B into 7.5kg of raw material A, stirring and mixing for 2 minutes, adding 7.5kg of A, stirring and mixing for 2 minutes, adding 3kg of B, finally adding 2kg of raw material C into the mixture of raw material A and raw material B, and performing ultrasonic oscillation for 20 minutes.
The polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 270 m/min, the printing plate depth is 40 microns, and the oven temperature is 65 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 45 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Example 5
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: water-based frosted gloss oil 79, purified water 19, polyurethane wear-resistant microspheres 4, nano silicon dioxide 5, an organic flatting agent 7 and a flatting agent 1;
the raw material B comprises the following components in parts by weight: purified water 6;
the raw material C comprises the following components in parts by weight: 0.5 of carbodiimide and 1.5 of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, in addition, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light rays and obtain an extinction appearance; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
step S04, weighing 15kg of raw material A, 10kg of raw material B and 2kg of raw material C according to the weight ratio of 15:10:2 when in use, adding 5kg of B into 7.5kg of raw material A, stirring and mixing for 2 minutes, adding 7.5kg of A, stirring and mixing for 2 minutes, adding 5kg of B, finally adding 2kg of raw material C into the mixture of raw material A and raw material B, and performing ultrasonic oscillation for 20 minutes.
The polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 260 m/min, the printing plate depth is 35 microns, and the oven temperature is 55 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 45 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Example 6
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: water-based frosted gloss oil 89, purified water 17, polyurethane wear-resistant microspheres 6, nano silicon dioxide 2, an organic flatting agent 6 and a flatting agent 3;
the raw material B comprises the following components in parts by weight: 4, purified water;
the raw material C comprises the following components in parts by weight: 0.2 parts of carbodiimide and 1.8 parts of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, in addition, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light rays and obtain an extinction appearance; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
the polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
Step S04, weighing 15kg of raw material A, 10kg of raw material B and 2kg of raw material C according to the weight ratio of 15:10:2 when in use, adding 5kg of B into 7.5kg of raw material A, stirring and mixing for 2 minutes, adding 7.5kg of A, stirring and mixing for 2 minutes, adding 5kg of B, finally adding 2kg of raw material C into the mixture of raw material A and raw material B, and performing ultrasonic oscillation for 20 minutes.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 270 m/min, the printing plate depth is 35 microns, and the oven temperature is 55 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 45 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Example 7
Water-based environment-friendly new material for replacing PET (polyethylene terephthalate) matte film and preparation method thereof
The raw materials of the water-based environment-friendly new material for replacing the PET matte film comprise: (unit: kg)
The raw material A comprises the following components in parts by weight: water-based frosted gloss oil 71, purified water 8, polyurethane wear-resistant microspheres 1, nano silicon dioxide 9 and an organic delustering agent 9;
the raw material B comprises the following components in parts by weight: 10 parts of purified water;
the raw material C comprises the following components in parts by weight: 0.5 of carbodiimide and 1.5 of polyethylenimine.
The preparation method comprises the following steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
the nano silicon dioxide has high dispersibility, the dispersibility of a film forming aid and polyurethane wear-resistant microspheres can be improved by adding the nano silicon dioxide, the color uniformity of a product is improved, in addition, the extinction efficiency of the silicon dioxide is high, and a micro rough surface can be formed on the surface of a coating film by adding the nano silicon dioxide in printing ink to reduce the reflection of light rays and obtain an extinction appearance; the organic delustering agent is an organic delustering agent containing carbon-carbon double bonds and active hydroxymethyl groups, and the active hydroxymethyl groups can participate in crosslinking in the film forming process, promote the film to shrink and gather into a uniform concave-convex surface to generate delustering, and further improve the delustering efficiency.
Step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
the polyethylenimine crosslinking agent is a multifunctional crosslinking agent with the activity content of 100%, can realize crosslinking reaction at room temperature, and can improve the strength, hardness, water resistance and solvent resistance of the aqueous polyurethane resin and further improve the wear resistance of the matte film.
Step S04, weighing 15kg of raw material A, 10kg of raw material B and 2kg of raw material C according to the weight ratio of 15:10:2 when in use, adding 5kg of B into 7.5kg of raw material A, stirring and mixing for 2 minutes, adding 7.5kg of A, stirring and mixing for 2 minutes, adding 5kg of B, finally adding 2kg of raw material C into the mixture of raw material A and raw material B, and performing ultrasonic oscillation for 20 minutes.
Printing: placing the gloss oil mixture on a gravure high-speed printing machine for printing, wherein the printing speed is 260 m/min, the printing plate depth is 35 microns, and the oven temperature is 55 ℃; coating: the depth of the coating plate is 35 microns, the oven is divided into three sections, the temperature of the first section is 65 ℃, the temperature of the second section is 75 ℃, the temperature of the third section is 85 ℃, the temperature of the drying room is 45 ℃, and the curing time of the drying room is 15 hours.
The test data after printing are shown in table 1.
Examples of the experiments
In the experimental example, the performance detection data of the novel water-based environment-friendly material for replacing the PET matte film prepared in the embodiments 1 to 7 of the invention are shown in Table 1 through experimental tests.
TABLE 1 test results
From the experimental results, it is known that the matte degree of the example 3 is slightly lower than that of the example added with the organic matting agent due to no addition of the organic matting agent, and the matte degree of the examples 4 and 7 is obviously reduced due to the larger proportion of the diluent, and products with different matte degrees can be obtained by adjusting the dilution ratio.
The novel water-based environment-friendly material for replacing the PET matte film, which is prepared by the invention, has the advantages of strong adhesive force, low matte degree, good appearance effect and the like, and the preparation method is suitable for popularization and has better product quality.
The above description is only a preferred embodiment and an experimental example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The novel water-based environment-friendly material for replacing PET (polyethylene terephthalate) matte films is characterized by comprising a raw material A, a raw material B and a raw material C, wherein the raw material A comprises the following components: the water-based sanding oil comprises water-based sanding gloss oil, purified water, polyurethane wear-resistant microspheres, nano silicon dioxide, an organic flatting agent and a flatting agent, wherein the raw material B comprises the purified water, the raw material C comprises carbodiimide and polyethylenimine, and the water-based sanding oil comprises water-based polyurethane resin, ethanol and a film-forming aid; the raw material A comprises the following components in parts by weight: 66-89 parts of water-based frosted gloss oil, 8-19 parts of purified water, 1-6 parts of polyurethane wear-resistant microspheres, 2-9 parts of nano silicon dioxide, 1-9 parts of an organic flatting agent and 1-3 parts of a flatting agent; the raw material C comprises the following components in parts by weight: 0.2-1.0 part of carbodiimide and 0.8-2.0 parts of polyethylenimine; the mixing ratio of the raw material A, the raw material B and the raw material C is 15: 2-10: 2 in weight ratio.
2. The novel waterborne environment-friendly material for replacing the PET matte film according to claim 1, wherein the raw material A comprises the following components in parts by weight: 71-85 parts of water-based frosted gloss oil, 10-17 parts of purified water, 2-5 parts of polyurethane wear-resistant microspheres, 3-8 parts of nano silicon dioxide, 3-7 parts of an organic flatting agent and 1-2 parts of a flatting agent.
3. The novel waterborne environment-friendly material for replacing the PET matte film according to claim 2, wherein the raw material A comprises the following components in parts by weight: 76-79 parts of water-based frosted gloss oil, 12-15 parts of purified water, 3-4 parts of polyurethane wear-resistant microspheres, 5-7 parts of nano silicon dioxide, 5-6 parts of an organic flatting agent and 1-2 parts of a flatting agent.
4. The novel waterborne environment-friendly material for replacing the PET matte film according to claim 3, wherein the raw material A comprises the following components in parts by weight: 77 parts of water-based frosted gloss oil, 13 parts of purified water, 3 parts of polyurethane wear-resistant microspheres, 6 parts of nano silicon dioxide, 5 parts of an organic flatting agent and 2 parts of a flatting agent.
5. The novel waterborne environment-friendly material for replacing the PET matte film according to claim 1, wherein the raw material C comprises the following components in parts by weight: 0.6 part of carbodiimide and 1.4 parts of polyethylenimine.
6. The preparation method of the PET matte film-substituted waterborne environment-friendly material as claimed in any one of claims 1 to 5, which is characterized by comprising the following specific steps:
step S01, preparing water-based frosted gloss oil: the water-based polyurethane resin, ethanol and a film-forming assistant are prepared according to the weight parts, the water-based polyurethane resin and the ethanol are added firstly, the film-forming assistant is added while stirring, and the water-based frosted gloss oil is prepared after fast dispersion for 20 minutes;
step S02, preparation of raw material a: mixing purified water, polyurethane wear-resistant microspheres, nano-silica, an organic flatting agent and a flatting agent according to the weight parts to obtain a mixture, heating water-based frosted gloss oil to 50 ℃, adding the mixture while stirring, grinding for 15 minutes, and then continuously stirring and mixing for 30 minutes;
step S03, preparation of raw material C: mixing polyethylenimine in certain weight proportion inside a mixing kettle at temperature below 20 deg.c, adding carbodiimide while stirring, and further stirring and mixing for 10 min;
and step S04, weighing the raw material A, the raw material B and the raw material C according to the weight ratio of 15: 2-10: 2 when in use, and adding the raw material C into the mixture of the raw material A and the raw material B.
7. The preparation method according to claim 6, wherein the adding process of the raw material A and the raw material B in the step S04 is as follows: dividing the raw material A and the raw material B into 2 parts respectively, adding one part of A, stirring and mixing for 2 minutes, then adding one part of B, stirring and mixing for 2 minutes, then adding one part of A, and mixing for 2 minutes, then adding one part of B.
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Denomination of invention: A new water-based environmentally friendly material and its preparation method for replacing PET dumb film Effective date of registration: 20231022 Granted publication date: 20200320 Pledgee: Wenzhou Longgang sub branch of Zheshang Bank Co.,Ltd. Pledgor: CHENGDE TECHNOLOGY Co.,Ltd. Registration number: Y2023330002399 |