CN112778830A - High-adhesion UV offset printing ink for PET (polyethylene terephthalate) film and preparation method thereof - Google Patents
High-adhesion UV offset printing ink for PET (polyethylene terephthalate) film and preparation method thereof Download PDFInfo
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- CN112778830A CN112778830A CN202110199403.3A CN202110199403A CN112778830A CN 112778830 A CN112778830 A CN 112778830A CN 202110199403 A CN202110199403 A CN 202110199403A CN 112778830 A CN112778830 A CN 112778830A
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- printing ink
- offset printing
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- photoinitiator
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- 238000007645 offset printing Methods 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 title description 4
- 239000005020 polyethylene terephthalate Substances 0.000 title description 4
- -1 polyethylene terephthalate Polymers 0.000 title description 2
- 229920002799 BoPET Polymers 0.000 claims abstract description 28
- 229920000728 polyester Polymers 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 16
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 16
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 16
- 239000000049 pigment Substances 0.000 claims abstract description 11
- 239000003085 diluting agent Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims description 13
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000013530 defoamer Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000007781 pre-processing Methods 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 239000000976 ink Substances 0.000 description 51
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000003359 percent control normalization Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000012856 weighed raw material Substances 0.000 description 3
- 238000003848 UV Light-Curing Methods 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
- C09D11/104—Polyesters
-
- 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
-
- 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
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses high-adhesion UV offset printing ink for a PET film, which is characterized by comprising the following raw material components in percentage by mass: 30-45% of polyester acrylic resin, 10-20% of polyurethane resin, 8-15% of reactive diluent, 5-10% of photoinitiator, 15-20% of pigment and filler and 0.5-2% of auxiliary agent. The invention also discloses a preparation method of the UV offset printing ink. According to the UV offset printing ink, polyester acrylic resin and polyurethane resin are compounded in the raw material components, so that stress with uniform size can be generated in the printing ink film, and the polyester acrylic resin can effectively reduce the hardening of the polyurethane resin, so that the adhesive force of the UV offset printing ink on a PET film can be comprehensively and effectively improved, the comprehensive performance of the printing ink is improved, and the printing ink has good scratch resistance, high and low temperature circulation resistance, bright color and good printing adaptability.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to high-adhesion UV offset printing ink for a PET film and a preparation method thereof.
Background
The UV offset printing ink is dried and cured by ultraviolet radiation and by means of free radicals or cations formed after the photoinitiator absorbs the radiation to initiate polymerization and crosslinking reaction of monomers and oligomers to form a high polymer surface with a crosslinked three-dimensional network structure. The surface of the PET film is very smooth, and the adhesion of the conventional UV offset printing ink is very poor if the conventional UV offset printing ink is directly used for the PET film, so that the UV offset printing ink is used for printing after the surface of the PET film is generally pretreated in the prior art, and the adhesion of the UV offset printing ink on the surface of the PET film can be greatly improved. However, the method for using the UV offset ink after the pretreatment of the PET film has complicated process and is very inconvenient to use, so how to improve the adhesion of the UV offset ink on the PET film becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the problem of poor adhesion performance of UV offset printing ink on a PET film in the prior art, and provides high-adhesion UV offset printing ink for the PET film and a preparation method thereof.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the high-adhesion UV offset printing ink for the PET film is characterized by comprising the following raw material components in percentage by mass: 30-45% of polyester acrylic resin, 10-20% of polyurethane resin, 8-15% of reactive diluent, 5-10% of photoinitiator, 15-20% of pigment and filler and 0.5-2% of auxiliary agent.
Preferably, the reactive diluent is an acrylic reactive diluent.
Preferably, the photoinitiator is one of a cleavage type photoinitiator, a hydrogen abstraction type photoinitiator, or a tertiary amine type co-photoinitiator.
Preferably, the mass ratio of the pigment to the filler is 4:1-5: 1.
Preferably, the filler is one or more of nano-silica, talcum powder, calcium carbonate, barium sulfate and kaolin.
Preferably, the auxiliary agent comprises a dispersing agent, a leveling agent and an antifoaming agent, and the mass ratio of the dispersing agent to the leveling agent to the antifoaming agent is 1: 0.5: 0.5.
further preferably, the dispersant is a polyester-based multi-chain high molecular polymer dispersant.
Further preferably, the defoaming agent is a polyether modified silicone defoaming agent.
A preparation method of high-adhesion UV offset printing ink for PET film comprises the following steps:
s1, weighing: weighing the raw material components according to the formula;
s2, preprocessing: uniformly mixing the raw materials of the components weighed in the step S1 at the temperature of 70 ℃ and the stirring speed of 300-500r/min to obtain a raw material mixture;
s3: grinding: and (5) grinding the raw material mixture obtained in the step S2 into powder of 4-8um, and discharging to obtain a finished product.
The raw material components of the UV offset printing ink are compounded by using the polyester acrylic resin and the polyurethane resin, and because the shrinkage rates of the polyester acrylic resin and the polyurethane resin are basically consistent, when the polyester acrylic resin and the polyurethane resin are mixed and cured, the stress generated by the polyester acrylic resin and the polyurethane resin is basically consistent, the phenomenon of uneven stress in the interior of an ink film layer is avoided, and the adhesive force of the ink on the surface of a PET film is obviously improved; meanwhile, the molecular weight of the polyester acrylic resin is basically the same as that of the polyurethane resin, and the polyester acrylic resin can effectively reduce the hardening property of the polyurethane resin, so that the printing ink can be attached to the PET film flexibly, and the adhesive force of the printing ink on the PET film is further improved.
The invention has the following beneficial effects:
firstly), polyester acrylic resin and polyurethane resin are compounded in the raw material components of the UV offset printing ink, so that stress with uniform size can be generated in an ink film layer, and the polyester acrylic resin can effectively reduce the hardenability of the polyurethane resin, so that the adhesion property of the UV offset printing ink can be effectively improved, and the UV offset printing ink has very good adhesion when being directly printed on a PET film.
Secondly), the ink disclosed by the invention also has the advantages of good scratch resistance, high and low temperature cycle resistance, bright color, good printing adaptability and excellent comprehensive performance.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
Weighing raw material components according to a formula, 45kg of polyester acrylic resin, 19kg of polyurethane resin, 10kg of acrylic reactive diluent, 7kg of hydrogen abstraction photoinitiator, 14.4kg of pigment, 3.6kg of calcium carbonate, 0.5kg of polyester multi-chain polymer dispersant, 0.25kg of flatting agent and 0.25kg of polyether modified organic silicon defoamer. The ratio of pigment to filler was 4: 1.
Adding the weighed raw materials into a mixing and heating device, keeping the temperature at 70 ℃, and uniformly mixing at a stirring speed of 400r/min to obtain a raw material mixture; and (3) feeding the raw material mixture into a three-roller grinding machine for grinding, grinding into powder of 5um, and discharging to obtain a finished product.
Example 2
Weighing 40kg of polyester acrylic resin, 15kg of polyurethane resin, 8kg of acrylic acid reactive diluent, 17kg of cracking photoinitiator, 15kg of pigment, 3kg of nano silicon dioxide and talcum powder, 1kg of polyester multi-chain polymer dispersant, 0.5kg of flatting agent and 0.5kg of polyether modified organic silicon defoamer according to a formula. The ratio of pigment to filler is 5: 1.
Adding the weighed raw materials into a mixing and heating device, keeping the temperature at 70 ℃, and uniformly mixing at a stirring speed of 300r/min to obtain a raw material mixture; and (3) feeding the raw material mixture into a three-roller grinding machine for grinding, grinding into powder of 4um, and discharging to obtain a finished product.
Example 3
The preparation method comprises the following steps of weighing 39kg of polyester acrylic resin, 20kg of polyurethane resin, 15kg of acrylic reactive diluent, 8.5kg of tertiary amine assistant photoinitiator, 12.8kg of pigment, 3.2kg of kaolin, 0.75kg of polyester multi-chain high molecular polymer dispersant, 0.375kg of flatting agent and 0.375kg of polyether modified organic silicon defoamer according to a formula. The ratio of pigment to filler was 4: 1.
Adding the weighed raw materials into a mixing and heating device, keeping the temperature at 70 ℃, and uniformly mixing at a stirring speed of 500r/min to obtain a raw material mixture; and (3) feeding the raw material mixture into a three-roller grinding machine for grinding, grinding into powder of 8um, and discharging to obtain a finished product.
Adhesion test of UV curing offset printing ink on PET film
Test materials: the test substrate is a PET film; 3M 800 test tape; a hundred grid knife. The experimental set of inks was A, B, C three sets of UV curable offset inks prepared according to examples 1, 2 and 3, respectively, of the present invention; the control groups are three groups a, b and c, and three types of UV curing offset printing ink of different brands are randomly purchased in the market respectively.
The test method comprises the following steps: the adhesion of the ink on the PET film was tested by the one-hundred-grid test method. A test area with 6 areas being the same in size is prepared on a PET film, the test ink A, B, C and the control inks a, b and c are respectively used for directly printing on the 6 test areas, then each test area is divided into small grids of 3 multiplied by 3cm by a hundred grid knife, a 3M 800 test adhesive tape is tightly stuck on the test area, one end of the adhesive tape is grasped by hands after 5 minutes, force is applied in a direction forming an angle of 45 degrees with the printing surface, and the adhesive tape is rapidly torn off. The same test area was repeated 2 times, and then the proportion of the area of the peeled ink in the area of the test area was examined.
This test was repeated 3 times and the test results averaged. The test results are shown in Table 1.
TABLE 1 adhesion test results of inks on PET films
| Grouping | Ink dropout rate |
| Test set ink A | 2％ |
| Test set ink B | 3％ |
| Test set ink C | 2％ |
| Control ink a | 41％ |
| Control ink b | 42％ |
| Control ink c | 40％ |
The test results in table 1 show that the ink drop rate of the test set was around 3% in the adhesion test; the dropping rate of the ink of the control group is about 40%, and the dropping rate of the ink of the control group is more than ten times of that of the ink of the test group, which fully indicates that the adhesive force of the ink of the test group on the PET film is obviously higher than that of the ink of the control group on the PET film, and the strong adhesive force ensures that the ink of the test group is not easy to drop after being directly printed on the PET film. The test result shows that the invention can obviously improve the adhesion property of the UV offset printing ink, so that the UV offset printing ink has very good adhesion when being directly printed on a PET film, and simultaneously improves the comprehensive performance of the ink, so that the ink has good scratch resistance, high and low temperature cycle resistance, bright color and good printing adaptability.
The present description is to be considered as illustrative and not restrictive, and it is within the scope of the present invention that certain changes and modifications may be made in the details of the invention without departing from the spirit and scope of the invention.
Claims (9)
1. The high-adhesion UV offset printing ink for the PET film is characterized by comprising the following raw material components in percentage by mass: 30-45% of polyester acrylic resin, 10-20% of polyurethane resin, 8-15% of reactive diluent, 5-10% of photoinitiator, 15-20% of pigment and filler and 0.5-2% of auxiliary agent.
2. The high adhesion UV flexographic ink according to claim 1, characterized in that said reactive diluent is an acrylic reactive diluent.
3. The high adhesion UV flexographic ink according to claim 1, wherein said photoinitiator is one of a cleavage-type photoinitiator, a hydrogen abstraction-type photoinitiator, or a tertiary amine-type co-photoinitiator.
4. The high adhesion UV offset printing ink according to claim 1, wherein the mass ratio of the pigment to the filler is 4:1 to 5: 1.
5. The high adhesion UV offset printing ink according to claim 1 or 4, wherein the filler is one or more of nano silica, talcum powder, calcium carbonate, barium sulfate and kaolin.
6. The high-adhesion UV offset printing ink as claimed in claim 1, wherein the auxiliary agent comprises a dispersing agent, a leveling agent and a defoaming agent, and the mass ratio of the dispersing agent to the leveling agent to the defoaming agent is 1: 0.5: 0.5.
7. the high adhesion UV flexographic ink according to claim 6, characterized in that said dispersant is a polyester-based multi-chain high molecular polymer dispersant.
8. The high adhesion UV flexographic ink according to claim 6, characterized in that said defoamer is a polyether modified silicone defoamer.
9. A preparation method of high-adhesion UV offset printing ink for PET films is characterized by comprising the following steps:
s1, weighing: weighing the raw material components according to the formula;
s2, preprocessing: uniformly mixing the raw materials of the components weighed in the step S1 at the temperature of 70 ℃ and the stirring speed of 300-500r/min to obtain a raw material mixture;
s3: grinding: and (5) grinding the raw material mixture obtained in the step S2 into powder of 4-8um, and discharging to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110199403.3A CN112778830A (en) | 2021-02-23 | 2021-02-23 | High-adhesion UV offset printing ink for PET (polyethylene terephthalate) film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110199403.3A CN112778830A (en) | 2021-02-23 | 2021-02-23 | High-adhesion UV offset printing ink for PET (polyethylene terephthalate) film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112778830A true CN112778830A (en) | 2021-05-11 |
Family
ID=75761760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110199403.3A Pending CN112778830A (en) | 2021-02-23 | 2021-02-23 | High-adhesion UV offset printing ink for PET (polyethylene terephthalate) film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112778830A (en) |
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