CN115558402B - UV (ultraviolet) photocuring coating for tin printing and preparation process thereof - Google Patents
UV (ultraviolet) photocuring coating for tin printing and preparation process thereof Download PDFInfo
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- CN115558402B CN115558402B CN202210135858.3A CN202210135858A CN115558402B CN 115558402 B CN115558402 B CN 115558402B CN 202210135858 A CN202210135858 A CN 202210135858A CN 115558402 B CN115558402 B CN 115558402B
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- 238000000576 coating method Methods 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 title claims abstract description 39
- 238000007639 printing Methods 0.000 title claims abstract description 17
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 238000000016 photochemical curing Methods 0.000 title abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 43
- 239000011347 resin Substances 0.000 claims description 33
- 229920005989 resin Polymers 0.000 claims description 33
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 25
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims description 25
- 239000000178 monomer Substances 0.000 claims description 24
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 22
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 17
- 230000003678 scratch resistant effect Effects 0.000 claims description 17
- QNODIIQQMGDSEF-UHFFFAOYSA-N (1-hydroxycyclohexyl)-phenylmethanone Chemical compound C=1C=CC=CC=1C(=O)C1(O)CCCCC1 QNODIIQQMGDSEF-UHFFFAOYSA-N 0.000 claims description 15
- -1 acrylic ester Chemical class 0.000 claims description 15
- 150000001412 amines Chemical class 0.000 claims description 15
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 12
- 239000004925 Acrylic resin Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 7
- ZDQNWDNMNKSMHI-UHFFFAOYSA-N 1-[2-(2-prop-2-enoyloxypropoxy)propoxy]propan-2-yl prop-2-enoate Chemical group C=CC(=O)OC(C)COC(C)COCC(C)OC(=O)C=C ZDQNWDNMNKSMHI-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 10
- 239000003973 paint Substances 0.000 description 9
- 238000001723 curing Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 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 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229940096522 trimethylolpropane triacrylate Drugs 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 239000004812 Fluorinated ethylene propylene Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920009441 perflouroethylene propylene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000009736 wetting Methods 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated 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)
- Paints Or Removers (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to a coating (IPC (industrial personal computer) classification number: C09D 163/10), in particular to an iron printing UV (ultraviolet) photo-curing coating and a preparation process thereof. The invention relates to a coating (IPC (industrial personal computer) classification number: C09D 163/10), in particular to an iron printing UV (ultraviolet) photo-curing coating and a preparation process thereof. The UV light-cured coating for the seal iron prepared by the invention can realize the film forming efficiency of 20-23 s, and the coating after film forming has excellent high hardness, high glossiness, excellent adhesive force, good ink protection property, controllable smoothness and friction resistance, low odor or no odor and good machining property.
Description
Technical Field
The invention relates to a coating (IPC (industrial personal computer) classification number: C09D 163/10), in particular to an iron printing UV (ultraviolet) photo-curing coating and a preparation process thereof.
Background
Metallic materials, particularly steel materials, play an important role in economic life. As a material commonly used in the packaging industry, steel materials are also increasingly requiring the performance of coatings. Most of the metal anti-corrosion baking paint used in the factory at present is a solvent type product, and even the water-based paint also contains partial solvent, so that the environment is possibly polluted in the construction process. Along with the development of market economy, the field of the coating is greatly changed, wherein the ultraviolet light curing coating (UV coating for short) has the advantages of high curing speed, energy conservation, normal-temperature curing, excellent performance, environmental protection and the like, and is widely paid attention to the industry. In addition, most of the current water-based paint consumes more energy to improve the curing rate and increases the energy consumption and time because of excessive water in the system and difficult volatilization of the water.
One of the key issues in the design of UV-curable coating formulations is how to improve adhesion between the coating film and various substrates, especially to metal substrates. This is because: on the one hand, the photo-curing coating has high curing speed, and the volume shrinkage is too large when the acrylic monomer is polymerized, so that the internal stress generated by a paint film is not released in time when the photo-curing coating is cured; on the other hand, the formation of the physical and chemical actions between the metal substrate and the paint is difficult, and the non-metal substrate is not easy.
Patent application CN201511020225.4 prepares ultraviolet light curing water-based polyurethane acrylate, the preparation method is simple and easy for industrial production, but the prepared polyurethane acrylate is quite strong in touch sense.
The UV light-cured coating for the seal iron prepared by the invention can realize the film forming efficiency of 20-23 s, and the coating after film forming has excellent high hardness, high glossiness, excellent adhesive force, good ink protection property, controllable smoothness and friction resistance, low odor or no odor and good machining property.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention provides an iron printing UV light-curable coating material, which comprises, in parts by weight, at least: 55-65 parts of UV resin, 5-10 parts of active amine, 20-30 parts of hydroxyl-containing acrylic monomer, 4-7 parts of photoinitiator, 0.1-0.5 part of flatting agent and 3-5 parts of scratch resistant agent.
As a preferable scheme, the tin printing UV light-cured coating comprises the following raw materials in parts by weight: 57-62 parts of UV resin, 6-9 parts of active amine, 22-28 parts of hydroxyl-containing acrylic monomer, 4-7 parts of photoinitiator, 0.1-0.5 part of flatting agent and 3-5 parts of scratch resistant agent.
As a preferred embodiment, the UV resin is one or more of urethane acrylate, polyester acrylate, epoxy acrylate resin.
As a preferred embodiment, the UV resin is a mixture of urethane acrylate and epoxy acrylate resins.
As a preferable scheme, the weight ratio of the urethane acrylate to the epoxy acrylate resin is (30-35) to (25-30).
As a preferred embodiment, the epoxy acrylate resin is bisphenol a epoxy acrylate.
As a preferred embodiment, the urethane acrylate is an aliphatic urethane acrylate.
As a preferable scheme, the functionality of the bisphenol A epoxy acrylate is more than or equal to 2, and the refractive index of the bisphenol A epoxy acrylate is 1.5-1.6.
As a preferred embodiment, the bisphenol A epoxy acrylate is commercially available, such as B-113 from Jining Bai Yi chemical Co., ltd.
As a preferred embodiment, the aliphatic urethane acrylate is purchased from KA119-5, a company of Guangdong Shunfu coatings Co.
As a preferred scheme, the hydroxyl-containing acrylic monomer is one or more of tripropylene glycol diacrylate, propoxylated neopentyl glycol diacrylate and trimethylol propane triacrylate.
As a preferred embodiment, the hydroxyl group-containing acrylate monomer is tripropylene glycol diacrylate.
As a preferable embodiment, the UV resin comprises (2.3 to 2.5) hydroxyl group-containing acrylate monomers in a weight ratio: 1.
the applicant found in experiments that hydroxyl group-containing acrylates are more likely to adhere to the substrate than hydroxyl group-free acrylates, and that the weight ratio of hydroxyl group-containing acrylate monomers is (2.3 to 2.5) when UV resin: 1, the adhesive force of the paint is better.
As a preferred embodiment, the photoinitiator is a mixture of photoinitiator 184 and photoinitiator TPO.
As a preferred embodiment, the weight ratio of the photoinitiator 184 to the photoinitiator TPO is (1 to 3): 1.
the applicant has found that when the photoinitiator 184, the weight ratio of the photoinitiator TPO is (1-3): 1, the UV resin has higher light absorption efficiency and higher free radical quantum yield in the spectrum range of a UV light source, and meanwhile, the UV resin in the system has good solubility and weather resistance, and does not generate yellowing after long-time storage.
As a preferable scheme, the leveling agent is one or more of modified organosilicon leveling agent and acrylic leveling agent,
as a preferred embodiment, the leveling agent is a modified silicone leveling agent, commercially available, such as Dow Corning DC-57.
As a preferred embodiment, the scratch resistant agent is one or more of polyvinylidene fluoride, fluorinated ethylene propylene, ethylene tetrafluoroethylene copolymer, polyvinylidene fluoride-hexafluoropropylene copolymer.
As a preferred embodiment, the scratch resistant agent is polyvinylidene fluoride-hexafluoropropylene copolymer, commercially available, for example, from Wuhan Hua Xiangke Biotechnology Inc.
The second aspect of the invention provides a process for preparing an iron printing UV light-cured coating, which mainly comprises the following steps:
(1) Uniformly mixing and stirring the UV resin, and uniformly dispersing;
(2) Then adding hydroxyl-containing acrylic monomer, leveling agent and scratch-resistant agent into the step (1), and uniformly dispersing;
(3) And finally adding the photoinitiator and the active amine, and uniformly stirring.
The beneficial effects are that:
1. according to the invention, the polyurethane acrylic ester is limited, and the weight ratio of the epoxy acrylic ester resin is (30-35) to (25-30), so that the wear resistance and the adhesive force of the product are improved, and the alcohol resistance of the coating is also improved.
2. The invention limits the UV resin, and the weight ratio of the acrylate monomer containing hydroxyl is (2.3-2.5): 1, the flexibility of the product is improved, and the penetration and wetting capacity of the paint to steel is improved, so that the adhesive force of the paint is improved.
3. By defining the photoinitiator 184, the weight ratio of the photoinitiator TPO is (1-3): 1, the curing rate of the coating is improved, and meanwhile, the coating has good solubility and weather resistance in a system of polyurethane acrylic ester and epoxy acrylic ester resin, and does not generate yellowing after long-time storage.
4. The invention improves the toughness of the coating and the glossiness of the product by limiting the functionality of bisphenol A epoxy acrylate to be more than or equal to 2 and the refractive index to be 1.5-1.6.
5. The UV light-cured coating for the seal iron prepared by the invention can realize the film forming efficiency of 20-23 s, and the coating after film forming has excellent high hardness, high glossiness, excellent adhesive force, good ink protection property, controllable smoothness and friction resistance, low odor or no odor and good machining property.
Detailed Description
Examples
Example 1
The embodiment 1 of the invention provides an iron printing UV light-cured coating, which comprises the following raw materials in parts by weight: 60 parts of UV resin, 8 parts of active amine, 25 parts of hydroxyl-containing acrylate monomer, 5 parts of photoinitiator, 0.3 part of flatting agent and 4 parts of scratch resistant agent.
The UV resin is a mixture of polyurethane acrylic ester and epoxy acrylic ester resin. The weight ratio of the urethane acrylate to the epoxy acrylate resin is 32:27.
the epoxy acrylate resin is bisphenol A epoxy acrylate, and is purchased from B-113 of Jining Baiyi chemical industry Co. The urethane acrylate was KA119-5, which was purchased from Guangdong Shunfu coatings Co., ltd.
The reactive amine was purchased from P115 of the bio-technology limited of wuhan Hua Xiangke.
The hydroxyl-containing acrylic monomer is tripropylene glycol diacrylate and is purchased from Jinan Quanzing New Material Co.
The photoinitiator is a mixture of photoinitiator 184 and photoinitiator TPO. The weight ratio of the photoinitiator 184 to the photoinitiator TPO is 2:1.
the photoinitiator 184 was purchased from Nanjing Wareweighe technology.
The photoinitiator TPO was purchased from Nanjing Milan chemical Co.
The leveling agent is a modified organosilicon leveling agent purchased from Dow Corning DC-57.
The scratch resistant agent is polyvinylidene fluoride-hexafluoropropylene copolymer purchased from the company of the Jiesu biotechnology of Wuhan Hua Xiangke.
The embodiment provides a preparation method of an iron printing UV light-cured coating, which comprises the following steps:
(1) Uniformly mixing and stirring the UV resin, and uniformly dispersing;
(2) Then respectively adding hydroxyl-containing acrylic monomers, a leveling agent and a scratch resistant agent into the step (1), and uniformly dispersing;
(3) And finally adding the photoinitiator and the active amine, and uniformly stirring.
Example 2
The embodiment 2 of the invention provides an iron printing UV light-cured coating, which comprises the following raw materials in parts by weight: 65 parts of UV resin, 10 parts of active amine, 30 parts of hydroxyl-containing acrylate monomer, 7 parts of photoinitiator, 0.5 part of flatting agent and 5 parts of scratch resistant agent.
The UV resin is a mixture of polyurethane acrylic ester and epoxy acrylic ester resin. The weight ratio of the urethane acrylate to the epoxy acrylate resin is 32:27.
the epoxy acrylate resin is bisphenol A epoxy acrylate, and is purchased from B-113 of Jining Baiyi chemical industry Co. The urethane acrylate was KA119-5, which was purchased from Guangdong Shunfu coatings Co., ltd.
The reactive amine was purchased from P115 of the bio-technology limited of wuhan Hua Xiangke.
The hydroxyl-containing acrylic monomer is tripropylene glycol diacrylate and is purchased from Jinan Quanzing New Material Co.
The photoinitiator is a mixture of photoinitiator 184 and photoinitiator TPO. The weight ratio of the photoinitiator 184 to the photoinitiator TPO is 2:1.
the photoinitiator 184 was purchased from Nanjing Wareweighe technology.
The photoinitiator TPO was purchased from Nanjing Milan chemical Co.
The leveling agent is a modified organosilicon leveling agent purchased from Dow Corning DC-57.
The scratch resistant agent is polyvinylidene fluoride-hexafluoropropylene copolymer purchased from the company of the Jiesu biotechnology of Wuhan Hua Xiangke.
The embodiment provides a preparation method of an iron printing UV light-cured coating, which comprises the following steps:
(1) Uniformly mixing and stirring the UV resin, and uniformly dispersing;
(2) Then adding hydroxyl-containing acrylic monomer, leveling agent and scratch-resistant agent into the step (1), and uniformly dispersing;
(3) And finally adding the photoinitiator and the active amine, and uniformly stirring.
Example 3
The embodiment 3 of the invention provides an iron printing UV light-cured coating, which comprises the following raw materials in parts by weight: 55 parts of UV resin, 5 parts of active amine, 20 parts of hydroxyl-containing acrylate monomer, 4 parts of photoinitiator, 0.1 part of flatting agent and 3 parts of scratch resistant agent.
The UV resin is a mixture of polyurethane acrylic ester and epoxy acrylic ester resin. The weight ratio of the urethane acrylate to the epoxy acrylate resin is 32:27.
the epoxy acrylate resin is bisphenol A epoxy acrylate, and is purchased from B-113 of Jining Baiyi chemical industry Co. The urethane acrylate was KA119-5, which was purchased from Guangdong Shunfu coatings Co., ltd.
The reactive amine was purchased from P115 of the bio-technology limited of wuhan Hua Xiangke.
The hydroxyl-containing acrylic monomer is tripropylene glycol diacrylate and is purchased from Jinan Quanzing New Material Co.
The photoinitiator is a mixture of photoinitiator 184 and photoinitiator TPO. The weight ratio of the photoinitiator 184 to the photoinitiator TPO is 2:1.
the photoinitiator 184 was purchased from Nanjing Wareweighe technology.
The photoinitiator TPO was purchased from Nanjing Milan chemical Co.
The leveling agent is a modified organosilicon leveling agent purchased from Dow Corning DC-57.
The scratch resistant agent is polyvinylidene fluoride-hexafluoropropylene copolymer purchased from the company of the Jiesu biotechnology of Wuhan Hua Xiangke.
The embodiment provides a preparation method of an iron printing UV light-cured coating, which comprises the following steps:
(1) Uniformly mixing and stirring the UV resin, and uniformly dispersing;
(2) Then adding hydroxyl-containing acrylic monomer, leveling agent and scratch-resistant agent into the step (1), and uniformly dispersing;
(3) And finally adding a photoinitiator and active amine, and uniformly stirring to obtain the iron printing photo-curing coating.
Comparative example 1
The embodiment of comparative example 1 is the same as example 1; in contrast, the UV resin described in comparative example 1 was an epoxy acrylate resin.
Comparative example 2
The embodiment of comparative example 2 is the same as example 1; in contrast, the hydroxyl group-containing acrylic monomer described in comparative example 2 was trimethylolpropane triacrylate.
Performance test:
the coatings obtained in examples 1-3 and comparative examples 1-2 were diluted with n-butanol to a solids content of 40%, and then uniformly coated on an iron article (148 mm. Times.210 mm) with a 14 μm coater to a thickness of 22. Mu.m. The metal product is cured and dried for 20s by ultraviolet irradiation at 60 ℃ (the UV energy is 700 mJ/cm) 2 ) The coated iron article was obtained and the following performance tests were performed:
(1) Gloss level: the gloss of the iron article was tested according to standard GB/T9754-2007 using a general purpose photometer (angle of incidence 60 ℃).
(2) Adhesion force: adhesion force: the test was carried out in accordance with GB/T9286-1998.
(3) Alcohol resistance: alcohol is dipped in the cotton cloth, and the cotton cloth is rubbed back and forth on the coating layer for a plurality of times by using a force of 1kg until the paint on the cotton cloth is observed to be rubbed out, wherein the back and forth rubbing times are more than 55 times of A, 50-55 times of B and less than 50 times of C.
(4) Impact resistance: the sample was subjected to a forward flushing test of 50cm/N to see if the sample was intact.
Performance test results:
table 1 shows the results of performance tests of UV-curable coatings for tin printing prepared in examples 1 to 3 and comparative examples 1 to 3.
TABLE 1
| Gloss level | Adhesion force | Alcohol resistance/time | Impact resistance | |
| Example 1 | 99 | 0 | A | No crack |
| Example 2 | 98 | 0 | A | No crack |
| Example 3 | 98 | 0 | A | No crack |
| Comparative example 1 | 102 | 1 | A | Slight cracking |
| Comparative example 2 | 92 | 2 | A | Slight cracking |
Claims (5)
1. The UV light-cured coating for the seal iron is characterized by comprising the following raw materials in parts by weight: 55-65 parts of UV resin, 5-10 parts of active amine, 20-30 parts of hydroxyl-containing acrylate monomer, 4-7 parts of photoinitiator, 0.1-0.5 part of flatting agent and 3-5 parts of scratch resistant agent;
the UV resin is polyurethane acrylic ester and epoxy acrylic ester resin mixture; the weight ratio of the polyurethane acrylic ester to the epoxy acrylic ester resin is (30-35) to (25-30);
the epoxy acrylate resin is bisphenol A epoxy acrylate;
the hydroxyl-containing acrylic monomer is tripropylene glycol diacrylate; the weight ratio of the UV resin to the hydroxyl-containing acrylic monomer is (2.3-2.5): 1, a step of;
the photoinitiator is a mixture of a photoinitiator 184 and a photoinitiator TPO;
the weight ratio of the photoinitiator 184 to the photoinitiator TPO is (1-3): 1, a step of;
the epoxy acrylate resin is bisphenol A epoxy acrylate; the functionality of the bisphenol A epoxy acrylate is more than or equal to 2, and the refractive index of the bisphenol A epoxy acrylate is 1.5-1.6.
2. The tin printing UV light-curable coating according to claim 1, wherein the raw materials in parts by weight are as follows: 57-62 parts of UV resin, 6-9 parts of active amine, 22-28 parts of hydroxyl-containing acrylate monomer, 4-7 parts of photoinitiator, 0.1-0.5 part of flatting agent and 3-5 parts of scratch resistant agent.
3. The stamp-pad UV light-curable coating according to claim 2, wherein the urethane acrylate is an aliphatic urethane acrylate.
4. The stamp-pad UV light-curable coating according to any one of claims 1-2, wherein the leveling agent is one or more of a modified silicone leveling agent, an acrylic leveling agent.
5. A process for preparing an ink UV light-curable coating according to any one of claims 1 to 4, characterized in that it comprises the steps of:
(1) Uniformly mixing and stirring the UV resin, and uniformly dispersing;
(2) Then adding hydroxyl-containing acrylic monomer, leveling agent and scratch-resistant agent into the step (1), and uniformly dispersing;
(3) And finally adding the photoinitiator and the active amine, and uniformly stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135858.3A CN115558402B (en) | 2022-02-15 | 2022-02-15 | UV (ultraviolet) photocuring coating for tin printing and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210135858.3A CN115558402B (en) | 2022-02-15 | 2022-02-15 | UV (ultraviolet) photocuring coating for tin printing and preparation process thereof |
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| Publication Number | Publication Date |
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| CN115558402A CN115558402A (en) | 2023-01-03 |
| CN115558402B true CN115558402B (en) | 2024-01-12 |
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| CN202210135858.3A Active CN115558402B (en) | 2022-02-15 | 2022-02-15 | UV (ultraviolet) photocuring coating for tin printing and preparation process thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010074405A2 (en) * | 2008-12-23 | 2010-07-01 | 주식회사 포스코 | Ultraviolet curable resin composition for transparent color-painted steel sheet, and steel sheet using same |
| CN107227100A (en) * | 2017-04-05 | 2017-10-03 | 杭州中粮包装有限公司 | A kind of operplate printing UV gloss oil and its coating methods |
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2022
- 2022-02-15 CN CN202210135858.3A patent/CN115558402B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010074405A2 (en) * | 2008-12-23 | 2010-07-01 | 주식회사 포스코 | Ultraviolet curable resin composition for transparent color-painted steel sheet, and steel sheet using same |
| CN107227100A (en) * | 2017-04-05 | 2017-10-03 | 杭州中粮包装有限公司 | A kind of operplate printing UV gloss oil and its coating methods |
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| Publication number | Publication date |
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| CN115558402A (en) | 2023-01-03 |
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