CN117210061A - High-fidelity anti-counterfeiting water-based ink - Google Patents
High-fidelity anti-counterfeiting water-based ink Download PDFInfo
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- CN117210061A CN117210061A CN202311134335.8A CN202311134335A CN117210061A CN 117210061 A CN117210061 A CN 117210061A CN 202311134335 A CN202311134335 A CN 202311134335A CN 117210061 A CN117210061 A CN 117210061A
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- water
- counterfeiting
- based ink
- ink
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical class O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 claims abstract description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 28
- 238000003756 stirring Methods 0.000 claims description 26
- XXKOQQBKBHUATC-UHFFFAOYSA-N cyclohexylmethylcyclohexane Chemical compound C1CCCCC1CC1CCCCC1 XXKOQQBKBHUATC-UHFFFAOYSA-N 0.000 claims description 15
- -1 2-hydroxyethoxy Chemical group 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 9
- KJIOQYGWTQBHNH-UHFFFAOYSA-N undecanol Chemical compound CCCCCCCCCCCO KJIOQYGWTQBHNH-UHFFFAOYSA-N 0.000 claims description 8
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 239000013530 defoamer Substances 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229940057402 undecyl alcohol Drugs 0.000 claims description 4
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 3
- GCYHRYNSUGLLMA-UHFFFAOYSA-N 2-prop-2-enoxyethanol Chemical compound OCCOCC=C GCYHRYNSUGLLMA-UHFFFAOYSA-N 0.000 claims description 3
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 3
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 3
- CDOUZKKFHVEKRI-UHFFFAOYSA-N 3-bromo-n-[(prop-2-enoylamino)methyl]propanamide Chemical compound BrCCC(=O)NCNC(=O)C=C CDOUZKKFHVEKRI-UHFFFAOYSA-N 0.000 claims description 2
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 2
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 claims description 2
- 239000004147 Sorbitan trioleate Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 2
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 2
- 235000019337 sorbitan trioleate Nutrition 0.000 claims description 2
- 229960000391 sorbitan trioleate Drugs 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 125000005375 organosiloxane group Chemical group 0.000 claims 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- 238000007641 inkjet printing Methods 0.000 claims 1
- 238000000016 photochemical curing Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000576 coating method Methods 0.000 abstract description 14
- 229920002635 polyurethane Polymers 0.000 abstract description 6
- 239000004814 polyurethane Substances 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004132 cross linking Methods 0.000 abstract description 2
- 230000002209 hydrophobic effect Effects 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 29
- 230000000052 comparative effect Effects 0.000 description 10
- 239000002518 antifoaming agent Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- YEYKMVJDLWJFOA-UHFFFAOYSA-N 2-propoxyethanol Chemical compound CCCOCCO YEYKMVJDLWJFOA-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical class OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to the technical field of anti-counterfeiting ink, in particular to high-fidelity anti-counterfeiting water-based ink. The water resistance of the coating after the water-based fluorescent ink is solidified is poor. Aiming at the problems, the invention provides high-fidelity anti-counterfeiting water-based ink, and the water-based ink system is added with modified fluorescein, wherein the modified fluorescein is composed of two modified polyurethanes, one modified polyurethane structure contains a hydrophobic long carbon chain, and the existence of the long carbon chain can obviously improve the water resistance of a cured coating; the other modified polyurethane structure contains double bonds, and can participate in photopolymerization reaction under the irradiation of LED ultraviolet light, and after the double bonds in the modified fluorescein structure participate in photopolymerization, on one hand, the tinting strength and high glossiness of the whole ink coating can be improved, and the crosslinking density of the coating can be increased to further improve the water resistance of the ink coating.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting ink, in particular to high-fidelity anti-counterfeiting water-based ink.
Background
The fluorescent ink has the anti-counterfeiting function realized by adding a functional material with fluorescent property into a common ink material system. The fluorescent ink is white or light in sunlight, and can emit visible light of 400-800 nm under the irradiation of light sources such as ultraviolet light with the wavelength of 200-400 nm. Fluorescent inks are functional luminescent pigments, which differ from the general pigments in that: when the external light irradiates, fluorescent substances in the material system can absorb ultraviolet band or visible light energy and convert the energy into visible light with longer wavelength to be released, so that high-brightness fluorescent visible light with different colors from common ink is generated.
The solvent type fluorescent ink can generate a large amount of VOC in the preparation and use processes, does not meet the requirements of green and environment protection, and the development of the water-based fluorescent ink is receiving more and more attention. Most of the current water-based fluorescent ink is prepared by adding a proper amount of fluorescent dye into an ink system, and the fluorescent ink obtained by the method has an anti-counterfeiting function, but the coating formed after curing has poor wear resistance, waterproof property and adhesive force on a plastic packaging material, is easy to fall off from the surface of a base material, and loses the anti-counterfeiting mark function.
Disclosure of Invention
The problems in the prior art are: the water resistance of the coating after the water-based fluorescent ink is solidified is poor. Aiming at the problems, the invention provides high-fidelity anti-counterfeiting water-based ink which comprises the following components in parts by weight:
specifically, the anti-counterfeiting material is modified fluorescein, and the preparation method of the modified fluorescein comprises the following steps:
heating 150mL of acetone to 70-80 ℃, adding 4, 4-diisocyanate dicyclohexylmethane, wherein the mass concentration of the 4, 4-diisocyanate dicyclohexylmethane in acetone is 10g/L, stirring uniformly, adding 6-carboxyl di-O-acetylfluorescein, wherein the molar ratio of the 6-carboxyl di-O-acetylfluorescein to the 4, 4-diisocyanate dicyclohexylmethane is 1:1, adopting FITR to monitor the reaction, stirring at constant temperature until the-NCO in the reaction system is reduced to half of the original molar amount, then reducing the temperature of the reaction system to 50-55 ℃, continuously dropwise adding an acetone solution with the mass concentration of 10mg/mL undecyl alcohol while stirring, stirring until the-NCO in the reaction system is reduced to 1/4 of the original molar amount, stopping dropwise adding, adding a proper amount of ethylene glycol monoallyl ether into the reaction system, stirring until the-NCO absorption peak in the reaction system disappears on the FITR, cooling the reaction solution to 3-5 ℃ after the reaction, adding a 1/2 volume spectrogram, dispersing uniformly, standing, removing a layered solvent, and removing a layered solvent layer after the solution is removed.
Specifically, the ultraviolet light absorber comprises at least one of a, a-dimethoxy-a-phenylacetophenone, 2-diethoxy-1-phenylhexanone, 1-hydroxycyclohexylphenylketone, 2-hydroxy-4- (2-hydroxyethoxy) -2-methylpropenone, 2-methyl-1- (4-methylthiophenyl) -2-morpholin-1-one.
Specifically, the surfactant comprises at least one of sodium stearate, sodium dodecyl benzene sulfonate, dioctyl sodium sulfosuccinate, fatty glyceride, sorbitan trioleate and polyoxyethylene sorbitan fatty acid ester.
Specifically, the aqueous defoaming agent comprises at least one of polyether defoaming agent, organic silicon defoaming agent and polysiloxane defoaming agent.
Specifically, the water-based leveling agent comprises at least one of polydimethyl siloxane, polyether modified organic siloxane, end group type polyether modified organic silicon and acrylic ester.
Specifically, the high-fidelity anti-counterfeiting water-based ink is prepared according to the following steps:
and under the condition of avoiding light, mixing and stirring the components uniformly according to the formula amount to obtain the light-shielding composite material.
Advantageous effects
(1) The modified fluorescein is added into the water-based ink system, and consists of two modified polyurethanes, wherein one modified polyurethane structure contains a hydrophobic long carbon chain, and the existence of the long carbon chain can obviously improve the water resistance of a cured coating; the other modified polyurethane structure contains double bonds, and can participate in photopolymerization reaction under the irradiation of LED ultraviolet light, and after the double bonds in the modified fluorescein structure participate in photopolymerization, on one hand, the tinting strength and high glossiness of the whole ink coating can be improved, and the crosslinking density of the coating can be increased to further improve the water resistance and wear resistance of the ink coating and the adhesive force between the ink coating and a plastic substrate;
(2) The modified fluorescein structure also contains a ring structure, so that the wear resistance of the ink coating and the adhesive force between the ink coating and the plastic substrate can be improved.
Detailed Description
The aqueous urethane acrylates of the following examples of the present invention were purchased from Shanghai Ind, utility Co., ltd., brand: SWA8038.
The anti-counterfeiting material in the following embodiment of the invention is prepared according to the following steps: heating 150mL of acetone to 80 ℃, adding 4, 4-diisocyanate dicyclohexylmethane, wherein the mass concentration of the 4, 4-diisocyanate dicyclohexylmethane in acetone is 10g/L, stirring uniformly, adding 6-carboxyl di-O-acetylfluorescein, wherein the molar ratio of the 6-carboxyl di-O-acetylfluorescein to the 4, 4-diisocyanate dicyclohexylmethane is 1:1, adopting FITR monitoring reaction, stirring at constant temperature until the-NCO in the reaction system is reduced to half of the original molar amount, then reducing the temperature of the reaction system to 50 ℃, continuously dropwise adding an acetone solution of undecyl alcohol with the mass concentration of 10mg/mL while stirring, stirring until the-NCO in the reaction system is reduced to 1/4 of the original molar amount, stopping dropwise adding, adding a proper amount of ethylene glycol propyl ether into the reaction system, stirring until the-NCO absorption peak in the reaction system is on the FITR, ending the reaction, cooling the reaction solution to 5 ℃ by ice bath, adding deionized water with the volume of 1/2, stirring uniformly, removing a layering, removing a solvent layer by distillation, and removing a layering, namely removing a solvent layer by layering, and removing a layering, namely removing a fluorescent layer.
The ultraviolet light absorber used in the following examples of the present invention was 1-hydroxycyclohexyl phenyl ketone.
The aqueous defoamer used in the following examples of the present invention was the silicone based defoamer BYK028.
The aqueous leveling agent used in the following examples of the present invention is BYK333.
Example 1
The high-fidelity anti-counterfeiting water-based ink comprises the following components in parts by weight:
example 2
The high-fidelity anti-counterfeiting water-based ink comprises the following components in parts by weight:
example 3
The high-fidelity anti-counterfeiting water-based ink comprises the following components in parts by weight:
example 4
The high-fidelity anti-counterfeiting water-based ink comprises the following components in parts by weight:
example 5
The high-fidelity anti-counterfeiting water-based ink comprises the following components in parts by weight:
example 6
The high-fidelity anti-counterfeiting water-based ink comprises the following components in parts by weight:
comparative example 1 the same as example 1 was different in that the security material in comparative example 1 was prepared according to the following steps: heating 150mL of acetone to 80 ℃, adding 4, 4-diisocyanate dicyclohexylmethane, wherein the mass concentration of the 4, 4-diisocyanate dicyclohexylmethane in the acetone is 10g/L, stirring uniformly, adding 6-carboxyl di-O-acetylfluorescein, wherein the molar ratio of the 6-carboxyl di-O-acetylfluorescein to the 4, 4-diisocyanate dicyclohexylmethane is 1:1, adopting FITR monitoring reaction, stirring at constant temperature to react until the-NCO in the reaction system is reduced to half of the original one, then reducing the temperature of the reaction system to 50 ℃, adding a proper amount of ethylene glycol monoallyl ether into the reaction system, stirring until the-OH absorption peak in the reaction system disappears on the FITR spectrogram, cooling the reaction solution to 5 ℃ after the reaction is completed, adding deionized water with the volume of 1/2 of the reaction solution, stirring uniformly, standing and layering, removing the lower layering solution, and distilling the upper layer solution under reduced pressure to remove the solvent to obtain the product.
Comparative example 2 the same as example 1 was different in that the security material in comparative example 2 was prepared according to the following steps:
heating 150mL of acetone to 80 ℃, adding 4, 4-diisocyanate dicyclohexylmethane, wherein the mass concentration of the 4, 4-diisocyanate dicyclohexylmethane in the acetone is 10g/L, stirring uniformly, adding 6-carboxyl di-O-acetylfluorescein, wherein the molar ratio of the 6-carboxyl di-O-acetylfluorescein to the 4, 4-diisocyanate dicyclohexylmethane is 1:1, adopting FITR monitoring reaction, stirring at constant temperature, reacting until the-NCO in the reaction system is reduced to half of the original molar amount, then reducing the temperature of the reaction system to 50 ℃, continuously dropwise adding an acetone solution with the mass concentration of 10mg/mL undecyl alcohol while stirring, reacting until the-NCO absorption peak in the reaction system disappears on a FITR spectrogram, cooling the reaction solution to 5 ℃ in an ice bath, adding deionized water with the volume of 1/2 of the reaction solution, standing for layering after stirring uniformly, removing the lower layering solution, and distilling the upper layer solution under reduced pressure to remove the solvent, thus obtaining the product.
Comparative example 3 the same as example 1 was different in that the anti-counterfeiting material used in comparative example 3 was 6-carboxydi-O-acetylfluorescein.
Performance testing
The aqueous inks obtained in examples 1 to 6 and comparative examples 1 to 2 of the present invention were subjected to the relevant performance test, the test standard was QB/T2024-2012, and the specific test results are shown in Table 1.
TABLE 1
| Test item | Tinting strength (%) | Gloss (60 degree) | Water resistance |
| Example 1 | 97 | 61 | Does not change color and fall off |
| Example 2 | 95 | 63 | Does not change color and fall off |
| Example 3 | 96 | 62 | Does not change color and fall off |
| Example 4 | 97 | 63 | Does not change color and fall off |
| Example 5 | 94 | 59 | Does not change color and fall off |
| Example 6 | 93 | 58 | Does not change color and fall off |
| Comparative example 1 | 96 | 62 | Shedding off |
| Comparative example 2 | 95 | 57 | Shedding off |
| Comparative example 3 | 90 | 50 | Shedding off |
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (8)
1. The high-fidelity anti-counterfeiting water-based ink is characterized by comprising the following components in parts by weight:
2. the high-fidelity anti-counterfeiting water-based ink according to claim 1, wherein the anti-counterfeiting material is modified fluorescein, and the preparation method of the modified fluorescein comprises the following steps:
heating 150mL of acetone to 70-80 ℃, adding 4, 4-diisocyanate dicyclohexylmethane, wherein the mass concentration of the 4, 4-diisocyanate dicyclohexylmethane in acetone is 10g/L, stirring uniformly, adding 6-carboxyl di-O-acetylfluorescein, wherein the molar ratio of the 6-carboxyl di-O-acetylfluorescein to the 4, 4-diisocyanate dicyclohexylmethane is 1:1, adopting FITR to monitor the reaction, stirring at constant temperature until the-NCO in the reaction system is reduced to half of the original molar amount, then reducing the temperature of the reaction system to 50-55 ℃, continuously dropwise adding an acetone solution with the mass concentration of 10mg/mL undecyl alcohol while stirring, stirring until the-NCO in the reaction system is reduced to 1/4 of the original molar amount, stopping dropwise adding, adding a proper amount of ethylene glycol monoallyl ether into the reaction system, stirring until the-NCO absorption peak in the reaction system disappears on the FITR, cooling the reaction solution to 3-5 ℃ after the reaction, adding a 1/2 volume spectrogram, dispersing uniformly, standing, removing a layered solvent, and removing a layered solvent layer after the solution is removed.
3. The high-fidelity anti-counterfeiting water-based ink according to claim 1, wherein the ultraviolet light absorber comprises at least one of a, a-dimethoxy-a-phenylacetophenone, 2-diethoxy-1-phenylhexanone, 1-hydroxycyclohexyl phenyl ketone, 2-hydroxy-4- (2-hydroxyethoxy) -2-methylpropenone, 2-methyl-1- (4-methylthiophenyl) -2-morpholin-1-one.
4. The high-fidelity anti-counterfeiting water-based ink according to claim 1, wherein the surfactant comprises at least one of sodium stearate, sodium dodecyl benzene sulfonate, dioctyl sodium sulfosuccinate, fatty acid glyceride, sorbitan trioleate and polyoxyethylene sorbitan fatty acid ester.
5. The high-fidelity anti-counterfeiting water-based ink according to claim 1, wherein the water-based defoamer comprises at least one of polyether defoamer, organosilicon defoamer and polysiloxane defoamer.
6. The high-fidelity anti-counterfeiting water-based ink according to claim 1, wherein the water-based leveling agent comprises at least one of polydimethylsiloxanes, polyether modified organosiloxanes, end group polyether modified organosiloxanes and acrylic esters.
7. The high-fidelity anti-counterfeiting water-based ink according to any one of claims 1 to 6, wherein the ink is prepared according to the following steps:
and under the condition of avoiding light, mixing and stirring the components uniformly according to the formula amount to obtain the light-shielding composite material.
8. The high-fidelity anti-counterfeiting water-based ink according to any one of claims 1 to 6, which is used for LED photo-curing digital ink-jet printing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311134335.8A CN117210061B (en) | 2023-09-05 | 2023-09-05 | High-fidelity anti-counterfeiting water-based ink |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311134335.8A CN117210061B (en) | 2023-09-05 | 2023-09-05 | High-fidelity anti-counterfeiting water-based ink |
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| CN117210061A true CN117210061A (en) | 2023-12-12 |
| CN117210061B CN117210061B (en) | 2024-02-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040023397A1 (en) * | 2002-08-05 | 2004-02-05 | Rakesh Vig | Tamper-resistant authentication mark for use in product or product packaging authentication |
| JP2004189850A (en) * | 2002-12-10 | 2004-07-08 | Dainippon Toryo Co Ltd | Fluorescent ink composition for jet printing use |
| CN103172829A (en) * | 2013-03-21 | 2013-06-26 | 中国科学技术大学 | Preparation method of fluorescent waterborne polyurethane emulsion based on chromophore in diisocyanate |
| CN108034303A (en) * | 2017-11-28 | 2018-05-15 | 湖南互力达涂料科技有限公司 | A kind of water-based LED light cures digital multiple anti-fake ink-jet and preparation method thereof |
| CN111234601A (en) * | 2020-03-31 | 2020-06-05 | 浙江材华科技有限公司 | Water-based macromolecular fluorescent anti-counterfeiting ink and preparation method thereof |
-
2023
- 2023-09-05 CN CN202311134335.8A patent/CN117210061B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040023397A1 (en) * | 2002-08-05 | 2004-02-05 | Rakesh Vig | Tamper-resistant authentication mark for use in product or product packaging authentication |
| JP2004189850A (en) * | 2002-12-10 | 2004-07-08 | Dainippon Toryo Co Ltd | Fluorescent ink composition for jet printing use |
| CN103172829A (en) * | 2013-03-21 | 2013-06-26 | 中国科学技术大学 | Preparation method of fluorescent waterborne polyurethane emulsion based on chromophore in diisocyanate |
| CN108034303A (en) * | 2017-11-28 | 2018-05-15 | 湖南互力达涂料科技有限公司 | A kind of water-based LED light cures digital multiple anti-fake ink-jet and preparation method thereof |
| CN111234601A (en) * | 2020-03-31 | 2020-06-05 | 浙江材华科技有限公司 | Water-based macromolecular fluorescent anti-counterfeiting ink and preparation method thereof |
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