CN116445033A - Printing ink for gold stamping transfer and preparation method thereof - Google Patents
Printing ink for gold stamping transfer and preparation method thereof Download PDFInfo
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- CN116445033A CN116445033A CN202310358442.2A CN202310358442A CN116445033A CN 116445033 A CN116445033 A CN 116445033A CN 202310358442 A CN202310358442 A CN 202310358442A CN 116445033 A CN116445033 A CN 116445033A
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- 238000012546 transfer Methods 0.000 title claims abstract description 55
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000010931 gold Substances 0.000 title claims abstract description 52
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title abstract description 52
- 239000004113 Sepiolite Substances 0.000 claims abstract description 93
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 93
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 92
- 229960000892 attapulgite Drugs 0.000 claims abstract description 63
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 63
- 238000002156 mixing Methods 0.000 claims abstract description 56
- -1 acrylic ester Chemical class 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 34
- 239000000945 filler Substances 0.000 claims abstract description 31
- 239000003085 diluting agent Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000002270 dispersing agent Substances 0.000 claims abstract description 22
- 239000004814 polyurethane Substances 0.000 claims abstract description 22
- 229920002635 polyurethane Polymers 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000010677 tea tree oil Substances 0.000 claims abstract description 18
- 229940111630 tea tree oil Drugs 0.000 claims abstract description 18
- 239000004593 Epoxy Substances 0.000 claims abstract description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 92
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 41
- 239000007822 coupling agent Substances 0.000 claims description 40
- 229920001661 Chitosan Polymers 0.000 claims description 27
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 26
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 20
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 claims description 20
- 238000005576 amination reaction Methods 0.000 claims description 18
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 16
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- 235000002906 tartaric acid Nutrition 0.000 claims description 15
- 239000011975 tartaric acid Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 229940010698 activated attapulgite Drugs 0.000 claims description 14
- 229960001701 chloroform Drugs 0.000 claims description 14
- 239000000413 hydrolysate Substances 0.000 claims description 14
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 14
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 14
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 14
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 10
- 244000028419 Styrax benzoin Species 0.000 claims description 10
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 10
- 235000008411 Sumatra benzointree Nutrition 0.000 claims description 10
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 10
- GUCYFKSBFREPBC-UHFFFAOYSA-N [phenyl-(2,4,6-trimethylbenzoyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C(=O)C1=C(C)C=C(C)C=C1C GUCYFKSBFREPBC-UHFFFAOYSA-N 0.000 claims description 10
- 229960002130 benzoin Drugs 0.000 claims description 10
- 235000019382 gum benzoic Nutrition 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 108010009736 Protein Hydrolysates Proteins 0.000 claims description 7
- 230000003213 activating effect Effects 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 abstract description 10
- 230000001070 adhesive effect Effects 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 239000000976 ink Substances 0.000 description 84
- 230000000052 comparative effect Effects 0.000 description 42
- 239000000243 solution Substances 0.000 description 42
- 239000000758 substrate Substances 0.000 description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 229920000136 polysorbate Polymers 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002966 varnish 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
- C09D11/101—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
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The application relates to the technical field of printing ink, and particularly discloses printing ink for gold stamping transfer and a preparation method thereof. The printing ink for gold stamping transfer comprises the following raw materials in parts by weight: 50-80 parts of polyurethane acrylic ester, 40-50 parts of epoxy acrylic ester, 30-40 parts of reactive diluent, 4-7 parts of photoinitiator, 6-10 parts of filler, 1.2-3.6 parts of tea tree oil and 1-3 parts of dispersing agent; the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite in a mass ratio of 4-8:5; the formula is simple and the proportion is strict; the preparation method of the printing ink for gold stamping transfer comprises the following steps: firstly, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil to obtain a mixed material; and then adding a photoinitiator and a dispersing agent into the mixed material, and stirring uniformly, so that the obtained printing ink has obvious adhesive force, is green and environment-friendly, and can meet the high requirements of a gold stamping transfer process.
Description
Technical Field
The application relates to the technical field of printing ink, in particular to printing ink for gold stamping transfer and a preparation method thereof.
Background
The cold stamping transfer process is to use a flexible plate to locally or fully print UV ink on a paper tape, compound the UV ink with a transfer film, instantly solidify the ink by irradiation of a UV lamp, and peel off the ink, so that a laser layer on the transfer film can be transferred to the paper tape according to a pattern on a printing plate to form a gorgeous packaging effect. Compared with the traditional hot stamping process, the cold stamping gold transfer process has the advantages that a common flexible plate can be used, a metal plate does not need to be manufactured, the plate making speed is high, the period is short, the cost is low, the online stamping speed is high, heating is not needed, and the applicable substrates for stamping are wide, such as films and thermosensitive materials.
The UV ink is prepared by taking ultraviolet light as an energy source, and after the photoinitiator in the ink is irradiated by the ultraviolet light, free radicals or cations are generated to initiate the polymer to cure, so that the curing time is short, and the problem of lower adhesive force of the UV ink on the surface of a substrate can be caused; at present, the surface tension of the substrate film itself can be increased by corona treatment on the surface of the substrate to further increase the wettability of the UV ink, but the corona effect gradually decreases with the passage of time due to unstable tension of the corona treated substrate surface. Therefore, it is needed to provide an ink for gold stamping transfer and a preparation method thereof, so that the ink has outstanding adhesive force, more excellent comprehensive performance and further improved gold stamping transfer effect.
Disclosure of Invention
In order to solve the problem of poor adhesive force of the existing printing ink for gold stamping transfer, the application provides the printing ink for gold stamping transfer and a preparation method thereof.
In a first aspect, the present application provides an ink for gold stamping transfer, which adopts the following technical scheme:
the printing ink for gold stamping transfer comprises the following raw materials in parts by weight: 50-80 parts of polyurethane acrylic ester, 40-50 parts of epoxy acrylic ester, 30-40 parts of reactive diluent, 4-7 parts of photoinitiator, 6-10 parts of filler, 1.2-3.6 parts of tea tree oil and 1-3 parts of dispersing agent;
the filler is prepared by mixing modified sepiolite and chitosan-attapulgite composite in a mass ratio of 4-8:5.
By adopting the technical scheme, the printing ink takes polyurethane acrylic ester and epoxy acrylic ester as main raw materials, and adds the reactive diluent and the photoinitiator, under the irradiation of ultraviolet rays, the photoinitiator can absorb energy to generate free radicals, the free radicals collide with the polyurethane acrylic ester and the epoxy acrylic ester under the high-speed movement, the energy is transferred to the polyurethane acrylic ester and the epoxy acrylic ester, and then double bond fracture containing polymerizable unsaturated double bond atomic groups is excited to carry out a crosslinking reaction, so that network macromolecules are generated, and the solidified printing ink is firmly attached to the surface of a base material; the reactive diluent can reduce the viscosity of the ink, so that the ink has good penetrability; meanwhile, a filler is added, and the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite, and the modified sepiolite and the chitosan-attapulgite composite cooperate to weaken the absorption degree of UV radiation by the ultraviolet light assimilation ink, reduce the curing speed of the ultraviolet light curing ink and improve the adhesive force of the curing ink; the stability, glossiness and saturation of the ink can be enhanced, and the anti-pollution capability of the ink is improved; tea tree oil can play a role in lubrication and dilution; the printing ink disclosed by the application is excellent in comprehensive performance, the adhesive force and stability of the printing ink are effectively improved, the printing ink is suitable for a gold stamping transfer process, and the gold stamping effect is excellent.
Preferably, the modified sepiolite comprises the following raw materials in parts by weight: 10-20 parts of nano sepiolite, 4-10 parts of tartaric acid, 1-3 parts of polyvinylpyrrolidone, 30-50 parts of water, 20-30 parts of an aminosilane coupling agent hydrolysate, 0.5-2.5 parts of azobisisobutyronitrile, 8-12 parts of methacrylate and 30-50 parts of trichloromethane.
Preferably, the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, uniformly stirring, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction, filtering, washing and drying to obtain the aminated sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 60-80 ℃ under the protection of nitrogen, reacting for 2-4 hours, filtering, washing and drying to obtain the modified sepiolite.
By adopting the technical scheme, the modified sepiolite is acidified by tartaric acid, then is coupled by an aminosilane coupling agent, and is cooperated with ultrasonic action, so that the surface of the nano sepiolite is loaded with amino groups; then, under the action of azodiisobutyronitrile, the amination sepiolite reacts with methyl of methacrylate to enable an acrylate skeleton to be successfully grafted onto the surface of the amination sepiolite; the modified sepiolite not only can enable the cured ink to obtain hardness, but also enables the cured ink to be firmly attached to the surface of the substrate; and the compatibility between the modified sepiolite and polyurethane acrylic ester and between the modified sepiolite and epoxy acrylic ester can be improved, so that the ink keeps good stability.
Preferably, the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:2-6:7-15.
Preferably, the aminosilane coupling agent is obtained by mixing KH550 and KH792 in a mass ratio of 2:3-6.
Through adopting above-mentioned technical scheme, the application uses KH550 and KH 792's mixture as amino silane coupling agent, and the mixed mass ratio of control two, and the two has different molecular structure, adopts the nano-sepiolite after the two treatment acidizing, and the amino silane coupling agent of different structure is loaded on nano-sepiolite's surface, has increased the roughness on amination sepiolite surface, and then has increased the area of contact of amination sepiolite and methacrylate, has improved grafting effect, obtains the excellent modified sepiolite of performance.
Preferably, the chitosan-attapulgite composite comprises the following raw materials in parts by weight: 10-20 parts of nano attapulgite, 20-40 parts of hydrochloric acid solution and 30-50 parts of chitosan hydrochloric acid solution.
Preferably, the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 2-3 hours, and then calcining and activating for 1-2 hours at 400-600 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 1-2 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
Preferably, the mass fraction of the hydrochloric acid solution is 20-30%; the chitosan hydrochloric acid solution is prepared by mixing chitosan with the mass ratio of 6-10:50 and hydrochloric acid solution with the mass fraction of 10%.
By adopting the technical scheme, the chitosan-attapulgite composite has the advantages that after the nano attapulgite is acidified, calcined and activated, a large number of active groups appear on the surface, and then the active groups are compounded with chitosan molecules to form the chitosan-nano attapulgite with excellent performance; the chitosan-nano attapulgite clay is not only uniformly dispersed in an ink system, but also can increase the crosslinking density and improve the adhesive force, wear resistance and toughness of the cured ink.
Preferably, the photoinitiator is prepared by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:2-5.
Through adopting above-mentioned technical scheme, the photoinitiator of this application adopts benzoin dimethyl ether and the mixture of bis (2, 4, 6-trimethylbenzoyl) -phenyl phosphine oxide, and the two interact has low migration, high heat stability's characteristics, not only can effectively solidify polyurethane acrylic ester and epoxy acrylic ester, has good compatibility with other components moreover for the performance of printing ink is more stable.
Preferably, the reactive diluent is obtained by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 1-5:3.
Through adopting above-mentioned technical scheme, the reactive diluent of this application is mixed by trimethylolpropane triacrylate and tripropylene glycol diacrylate of specific proportion and gets, not only guarantees that the viscosity of printing ink is moderate, can participate in the curing reaction of printing ink moreover, improves the crosslink density for the printing ink of solidification firmly bonds on the surface of substrate.
In a second aspect, the present application provides a method for preparing an ink for gold stamping transfer, which adopts the following technical scheme: the preparation method of the printing ink for gold stamping transfer comprises the following steps:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 40-60 ℃, and stirring for 0.5-1h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring at the rotating speed of 1000-2000r/min for 1-2 hours at the temperature of 30-40 ℃ to obtain the printing ink for gold stamping transfer.
By adopting the technical scheme, in the process of preparing the ink, the components are uniformly mixed by controlling the technological parameters, so that the components interact to form the ink with stable performance; the preparation method is simple, the preparation cost is low, and the comprehensive performance of the ink is optimized.
In summary, the present application has the following beneficial effects:
1. the raw materials of the printing ink for gold stamping transfer comprise polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, photoinitiator, filler, tea tree oil, dispersing agent and the like, the filler is obtained by mixing modified sepiolite with a chitosan-attapulgite composite, the components interact to form printing ink with stable performance, and the printing ink can be solidified to generate network macromolecules under the condition of ultraviolet irradiation, so that the printing ink is firmly attached to the surface of a base material, has strong adhesive force, is not easy to fall off, and can be widely applied in a cold stamping gold cold transfer process.
2. The modified sepiolite is prepared by firstly acidizing nano sepiolite and then using an aminosilane coupling agent to obtain the amination sepiolite; the amination sepiolite and the methyl acrylic ester undergo free radical polymerization reaction, so that the acrylic ester skeleton is grafted to the nano sepiolite, and the modified sepiolite has good compatibility in an ink system.
3. The preparation method of the printing ink is simple, the preparation cost is low, the printing ink is suitable for industrial production, the obtained printing ink is excellent in comprehensive performance, the printing ink is cured by UV, the printing ink is environment-friendly, and the high requirements of a gold stamping transfer process are better met.
Detailed Description
The present application is described in further detail below with reference to examples.
Preparation examples 1-5 and comparative preparation examples 1, 2 provide modified sepiolites and methods of making the same.
Preparation example 1
The modified sepiolite comprises the following raw materials: 100g of nano sepiolite, 40g of tartaric acid, 10g of polyvinylpyrrolidone, 300g of water, 200g of aminosilane coupling agent hydrolysate, 5g of azobisisobutyronitrile, 80g of methacrylate and 300g of chloroform;
the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:2:7; the aminosilane coupling agent is prepared by mixing KH550 and KH792 in a mass ratio of 2:3;
the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, stirring for 80min at the rotating speed of 200r/min, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction for 2h, filtering, washing and drying to obtain the amination sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 60 ℃ under the protection of nitrogen, reacting for 4 hours, filtering, washing and drying to obtain the modified sepiolite.
Preparation example 2
The modified sepiolite comprises the following raw materials: 120g of nano sepiolite, 50g of tartaric acid, 15g of polyvinylpyrrolidone, 350g of water, 20-30g of aminosilane coupling agent hydrolysate, 10g of azobisisobutyronitrile, 90g of methacrylate and 350g of chloroform;
the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:3:8; the aminosilane coupling agent is prepared by mixing KH550 and KH792 in a mass ratio of 1:2;
the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, stirring for 70min at the rotating speed of 300r/min, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction for 2.3h, filtering, washing and drying to obtain the amination sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 65 ℃ under the protection of nitrogen, reacting for 3.5 hours, filtering, washing and drying to obtain the modified sepiolite.
Preparation example 3
The modified sepiolite comprises the following raw materials: 150g of nano sepiolite, 60g of tartaric acid, 20g of polyvinylpyrrolidone, 400g of water, 250g of an aminosilane coupling agent hydrolysate, 15g of azobisisobutyronitrile, 100g of methacrylate and 400g of chloroform;
the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:4:10; the aminosilane coupling agent is prepared by mixing KH550 and KH792 in a mass ratio of 2:5;
the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, stirring for 60min at the rotation speed of 400r/min, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction for 2.5h, filtering, washing and drying to obtain the amination sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 70 ℃ under the protection of nitrogen, reacting for 3 hours, filtering, washing and drying to obtain the modified sepiolite.
Preparation example 4
The modified sepiolite comprises the following raw materials: 150g of nano sepiolite, 60g of tartaric acid, 25g of polyvinylpyrrolidone, 450g of water, 280g of aminosilane coupling agent hydrolysate, 20g of azobisisobutyronitrile, 110g of methacrylate and 450g of chloroform;
the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:5:12; the aminosilane coupling agent is prepared by mixing KH550 and KH792 in a mass ratio of 2:5.5;
the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, stirring for 50min at the rotation speed of 500r/min, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction for 2.8h, filtering, washing and drying to obtain the amination sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 75 ℃ under the protection of nitrogen, reacting for 2.5 hours, filtering, washing and drying to obtain the modified sepiolite.
Preparation example 5
The modified sepiolite comprises the following raw materials: 200g of nano sepiolite, 100g of tartaric acid, 30g of polyvinylpyrrolidone, 500g of water, 300g of aminosilane coupling agent hydrolysate, 25g of azobisisobutyronitrile, 120g of methacrylate and 500g of chloroform;
the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:6:15; the aminosilane coupling agent is prepared by mixing KH550 and KH792 in a mass ratio of 1:3;
the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, stirring for 40min at the rotating speed of 600r/min, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction for 2h, filtering, washing and drying to obtain the amination sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 80 ℃ under the protection of nitrogen, reacting for 2 hours, filtering, washing and drying to obtain the modified sepiolite.
Comparative preparation example 1
Comparative preparation 1 differs from preparation 1 only in that: the aminosilane coupling agent was KH550 alone.
Comparative preparation example 2
Comparative preparation 2 differs from preparation 1 only in that: the aminosilane coupling agent was KH792 alone.
Preparation examples 6-10 provide chitosan-attapulgite composites and methods of preparing the same.
Preparation example 6
The chitosan-attapulgite composite comprises the following raw materials: 100g of nano attapulgite, 200g of hydrochloric acid solution and 300g of chitosan hydrochloric acid solution;
the mass fraction of the hydrochloric acid solution is 20%; the hydrochloric acid solution of the chitosan is prepared by mixing chitosan with the mass ratio of 6:50 and hydrochloric acid solution with the mass fraction of 10%;
the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 2 hours, and then calcining and activating for 2 hours at 400 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 2 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
Preparation example 7
The chitosan-attapulgite composite comprises the following raw materials: 120g of nano attapulgite, 250g of hydrochloric acid solution and 350g of chitosan hydrochloric acid solution;
the mass fraction of the hydrochloric acid solution is 22%; the hydrochloric acid solution of the chitosan is prepared by mixing chitosan with the mass ratio of 7:50 and hydrochloric acid solution with the mass fraction of 10%;
the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 2.3 hours, and then calcining and activating for 1.8 hours at 450 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 1.2 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
Preparation example 8
The chitosan-attapulgite composite comprises the following raw materials: 150g of nano attapulgite, 300g of hydrochloric acid solution and 400g of chitosan hydrochloric acid solution;
the mass fraction of the hydrochloric acid solution is 25%; the chitosan hydrochloric acid solution is prepared by mixing chitosan with the mass ratio of 4:25 and hydrochloric acid solution with the mass fraction of 10%;
the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 2.5 hours, and then calcining and activating for 1.5 hours at 500 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 1.5 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
Preparation example 9
The chitosan-attapulgite composite comprises the following raw materials: 180g of nano attapulgite, 350g of hydrochloric acid solution and 450g of chitosan hydrochloric acid solution;
the mass fraction of the hydrochloric acid solution is 28%; the hydrochloric acid solution of the chitosan is prepared by mixing chitosan with the mass ratio of 9:50 and hydrochloric acid solution with the mass fraction of 10%;
the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 2.8 hours, and then calcining and activating for 1.2 hours at 550 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 1.8 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
Preparation example 10
The chitosan-attapulgite composite comprises the following raw materials: 200g of nano attapulgite, 400g of hydrochloric acid solution and 500g of chitosan hydrochloric acid solution;
the mass fraction of the hydrochloric acid solution is 30%; the chitosan hydrochloric acid solution is prepared by mixing chitosan with the mass ratio of 1:5 and hydrochloric acid solution with the mass fraction of 10%;
the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 3 hours, and then calcining and activating for 1 hour at 600 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 2 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
Examples 1-5 provide a gold stamping transfer ink and a preparation method thereof.
Example 1
An ink for gold stamping transfer comprises the following raw materials: 500g of polyurethane acrylate, 400g of epoxy acrylate, 300g of reactive diluent, 40g of photoinitiator, 60g of filler, 12g of tea tree oil and 10g of dispersing agent;
the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite in a mass ratio of 4:5; and the modified sepiolite was prepared from preparation example 1; the chitosan-attapulgite composite was prepared in preparation example 6; the photoinitiator is prepared by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:2; the reactive diluent is prepared by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 1:3; the dispersing agent is Tween.
The preparation method of the printing ink for gold stamping transfer comprises the following steps:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 40 ℃, and stirring for 1h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring at the rotating speed of 1000r/min for 2 hours at the temperature of 30 ℃ to obtain the printing ink for gold stamping transfer.
Example 2
An ink for gold stamping transfer comprises the following raw materials: 550g of polyurethane acrylate, 430g of epoxy acrylate, 320g of reactive diluent, 50g of photoinitiator, 70g of filler, 16g of tea tree oil and 10g of dispersing agent;
the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite in a mass ratio of 1:1; and the modified sepiolite was prepared from preparation example 2; the chitosan-attapulgite composite was prepared in preparation example 7; the photoinitiator is prepared by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:3; the reactive diluent is prepared by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 2:3; the dispersing agent is Tween.
The preparation method of the printing ink for gold stamping transfer comprises the following steps:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 45 ℃, and stirring for 0.9h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring at the speed of 1200r/min for 1.8 hours at the temperature of 32 ℃ to obtain the printing ink for gold stamping transfer.
Example 3
An ink for gold stamping transfer comprises the following raw materials: 600g of polyurethane acrylate, 450g of epoxy acrylate, 350g of reactive diluent, 60g of photoinitiator, 80g of filler, 20g of tea tree oil and 15g of dispersing agent;
the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite in a mass ratio of 6:5; and the modified sepiolite was prepared from preparation example 3; the chitosan-attapulgite composite was prepared in preparation example 8; the photoinitiator is prepared by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:4; the reactive diluent is prepared by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 1:1; the dispersing agent is Tween.
The preparation method of the printing ink for gold stamping transfer comprises the following steps:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 50 ℃, and stirring for 0.7h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring at the rotating speed of 1500r/min for 1.5 hours at the temperature of 35 ℃ to obtain the printing ink for gold stamping transfer.
Example 4
An ink for gold stamping transfer comprises the following raw materials: 700g of polyurethane acrylate, 480g of epoxy acrylate, 380g of reactive diluent, 65g of photoinitiator, 90g of filler, 30g of tea tree oil and 25g of dispersing agent;
the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite in a mass ratio of 7:5; and modified sepiolite was prepared from preparation 4; the chitosan-attapulgite composite was prepared in preparation example 9; the photoinitiator is prepared by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:4.5; the reactive diluent is prepared by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 4:3; the dispersing agent is span.
The preparation method of the printing ink for gold stamping transfer comprises the following steps:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 55 ℃, and stirring for 0.6h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring for 1.2 hours at the speed of 1800r/min at the temperature of 38 ℃ to obtain the printing ink for gold stamping transfer.
Example 5
An ink for gold stamping transfer comprises the following raw materials: 800g of polyurethane acrylate, 500g of epoxy acrylate, 400g of reactive diluent, 70g of photoinitiator, 100g of filler, 36g of tea tree oil and 30g of dispersing agent;
the filler is prepared by mixing modified sepiolite and a chitosan-attapulgite composite in a mass ratio of 8:5; and modified sepiolite was prepared from preparation 5; the chitosan-attapulgite composite was prepared from preparation example 10; the photoinitiator is prepared by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:5; the reactive diluent is prepared by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 5:3; the dispersing agent is span.
The preparation method of the printing ink for gold stamping transfer comprises the following steps:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 60 ℃, and stirring for 0.5h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring at the rotating speed of 2000r/min for 1h at the temperature of 40 ℃ to obtain the printing ink for gold stamping transfer.
To verify the performance of the ink for gold stamping transfer provided in the present application, the applicant set comparative examples 1 to 10 in which: comparative example 1
Comparative example 1, which differs from example 1 only in that: modified sepiolite was prepared from comparative preparation 1.
Comparative example 2
Comparative example 2, which differs from example 1 only in that: modified sepiolite was prepared from comparative preparation 2.
Comparative example 3
Comparative example 3, which differs from example 1 only in that: the modified sepiolite is replaced by the nano sepiolite with the same amount.
Comparative example 4
Comparative example 4, which differs from example 1 only in that: the chitosan-attapulgite composite is replaced by the same amount of nano attapulgite.
Comparative example 5
Comparative example 5, which differs from example 1 only in that: the filler was only modified sepiolite (preparation 1).
Comparative example 6
Comparative example 6, which differs from example 1 only in that: the filler was only a chitosan-attapulgite composite (preparation 6).
Comparative example 7
Comparative example 7, which differs from example 1 only in that: the photoinitiator was only benzoin dimethyl ether.
Comparative example 8
Comparative example 8, which differs from example 1 only in that: the photoinitiator was only bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide.
Comparative example 9
Comparative example 9, which differs from example 1 only in that: the reactive diluent is only trimethylolpropane triacrylate.
Comparative example 10
Comparative example 10, which differs from example 1 only in that: the reactive diluent is only tripropylene glycol diacrylate.
The main properties of the bronzing transfer inks in examples 1 to 5 and comparative examples 1 to 10 were respectively given as the following parameters, specifically shown in table 1:
adhesion force: testing by referring to GBT9286-1998 'cross-cut test of paint film', observing test results, and evaluating the adhesive force grade; hardness: hardness testing is carried out by referring to GB/T6739-2006 paint film hardness determination by a colored paint and varnish pencil method; abrasion resistance: according to the RCA paper tape abrasion test, loading 175g force and 300 circles, observing whether the ink film is fallen off or incomplete; storage stability: storing the ink at 50+ -2deg.C for 30-90 days, and recording whether precipitation and layering occur;
table 1:
as can be seen from the data shown in table 1: the ink for gold stamping transfer obtained in the embodiment 1-5 is far better than the ink for gold stamping transfer obtained in the comparative example 1-10 in comprehensive performance, the adhesive force, the hardness and the wear resistance of the ink are obviously improved, and the storage stability is excellent.
From example 1 and comparative examples 1 and 2, it is understood that: the modified sepiolite in example 1 was prepared in preparation example 1, and the amino coupling agent used was obtained by mixing KH550 with KH792, and the ink obtained in example 1 had a higher adhesion rating, a higher hardness, and no precipitation or delamination after 90 days of storage, as compared with comparative examples 1 and 2.
As can be seen from example 1 and comparative example 3: the modified sepiolite used in example 1 showed significantly improved adhesion and storage stability of the ink obtained in example 1, compared to the nano sepiolite used in comparative example 3.
As can be seen from example 1 and comparative example 4: the combination properties of the ink obtained in example 1 were more excellent than those of the ink obtained in comparative example 4, using chitosan-attapulgite and nano-attapulgite in example 1.
As can be seen from example 1 and comparative examples 5 and 6: the filler used in example 1 was obtained by mixing modified sepiolite and chitosan-attapulgite, and the ink obtained in example 1 was not only excellent in adhesion and abrasion resistance, but also stable in performance, and convenient for long-term storage, as compared with comparative examples 5 or 6 in which modified sepiolite or chitosan-attapulgite was used alone.
As can be seen from example 1 and comparative examples 7 and 8: the photoinitiator used in example 1 was obtained by mixing benzoin dimethyl ether with bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide, and the adhesion and hardness of the ink obtained in example 1 were significantly better than those of comparative examples 7 and 8 in terms of abrasion resistance.
As can be seen from example 1 and comparative examples 9 and 10: the reactive diluent used in example 1 was obtained by mixing trimethylolpropane triacrylate with tripropylene glycol diacrylate, and the ink obtained in example 1 was better in adhesion and hardness than comparative examples 9 and 10.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (10)
1. The printing ink for gold stamping transfer is characterized by comprising the following raw materials in parts by weight: 50-80 parts of polyurethane acrylic ester, 40-50 parts of epoxy acrylic ester, 30-40 parts of reactive diluent, 4-7 parts of photoinitiator, 6-10 parts of filler, 1.2-3.6 parts of tea tree oil and 1-3 parts of dispersing agent;
the filler is prepared by mixing modified sepiolite and chitosan-attapulgite composite in a mass ratio of 4-8:5.
2. The ink for gold stamping transfer according to claim 1, wherein the modified sepiolite comprises the following raw materials in parts by weight: 10-20 parts of nano sepiolite, 4-10 parts of tartaric acid, 1-3 parts of polyvinylpyrrolidone, 30-50 parts of water, 20-30 parts of an aminosilane coupling agent hydrolysate, 0.5-2.5 parts of azobisisobutyronitrile, 8-12 parts of methacrylate and 30-50 parts of trichloromethane.
3. The ink for gold stamping transfer according to claim 2, wherein the modified sepiolite is prepared by the following method:
s11, firstly adding nano sepiolite, tartaric acid and polyvinylpyrrolidone into water, uniformly stirring, then adding an aminosilane coupling agent hydrolysate for ultrasonic reaction, filtering, washing and drying to obtain the aminated sepiolite;
s12, adding the amination sepiolite, the azodiisobutyronitrile and the methacrylate obtained in the step S11 into chloroform, heating to 60-80 ℃ under the protection of nitrogen, reacting for 2-4 hours, filtering, washing and drying to obtain the modified sepiolite.
4. The gold stamping transfer ink according to claim 2, wherein the aminosilane coupling agent hydrolysate is prepared by mixing an aminosilane coupling agent, water and ethanol in a mass ratio of 1:2-6:7-15.
5. The ink for gold stamping transfer according to claim 4, wherein the aminosilane coupling agent is obtained by mixing KH550 and KH792 in a mass ratio of 2:3-6.
6. The ink for gold stamping transfer according to claim 1, wherein the chitosan-attapulgite composite comprises the following raw materials in parts by weight: 10-20 parts of nano attapulgite, 20-40 parts of hydrochloric acid solution and 30-50 parts of chitosan hydrochloric acid solution.
7. The ink for gold stamping transfer according to claim 6, wherein the chitosan-attapulgite composite is prepared by the following method:
s21, soaking nano attapulgite in a hydrochloric acid solution, acidifying for 2-3 hours, and then calcining and activating for 1-2 hours at 400-600 ℃ to obtain activated attapulgite;
s22, adding the activated attapulgite obtained in the step S22 into a hydrochloric acid solution of chitosan, performing ultrasonic reaction for 1-2 hours, adjusting pH to be neutral, filtering, washing and drying to obtain the chitosan-attapulgite compound.
8. The ink for gold stamping transfer according to claim 1, wherein the photoinitiator is obtained by mixing benzoin dimethyl ether and bis (2, 4, 6-trimethylbenzoyl) -phenylphosphine oxide in a mass ratio of 1:2-5.
9. The ink for gold stamping transfer according to claim 1, wherein the reactive diluent is obtained by mixing trimethylolpropane triacrylate and tripropylene glycol diacrylate in a mass ratio of 1-5:3.
10. A method for preparing the ink for gold stamping transfer according to any one of claims 1 to 9, comprising the steps of:
s1, mixing polyurethane acrylic ester, epoxy acrylic ester, reactive diluent, filler and tea tree oil, heating to 40-60 ℃, and stirring for 0.5-1h to obtain a mixed material;
s2, adding a photoinitiator and a dispersing agent into the mixed material obtained in the step S1, and stirring at the rotating speed of 1000-2000r/min for 1-2 hours at the temperature of 30-40 ℃ to obtain the printing ink for gold stamping transfer.
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| CN113462042A (en) * | 2021-07-26 | 2021-10-01 | 桂林电子科技大学 | Amino modified sepiolite/graphene oxide/natural rubber composite latex and preparation method thereof |
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| CN101987929A (en) * | 2009-08-06 | 2011-03-23 | 中国科学院兰州化学物理研究所 | Attapulgite clay suspension agent |
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