CN104774500A - Waterborne flexographic printing scraping white ink and preparation method and application thereof - Google Patents
Waterborne flexographic printing scraping white ink and preparation method and application thereof Download PDFInfo
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- CN104774500A CN104774500A CN201510222505.7A CN201510222505A CN104774500A CN 104774500 A CN104774500 A CN 104774500A CN 201510222505 A CN201510222505 A CN 201510222505A CN 104774500 A CN104774500 A CN 104774500A
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- water
- chalk
- scrapes
- based flexo
- aqueous polyurethane
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a waterborne flexographic printing scraping white ink and a preparation method and the application thereof, and belongs to the technical field of printing. The waterborne flexographic printing scraping white ink is composed of, by mass percent, the following components of 15.0-25.0% of waterborne polyurethane A, 20.0-30.0% of waterborne polyurethane B, 40.0-50.0% of titanium dioxide, 2.0-3.0% of dispersing agents, 0.1-0.3% of defoaming agent and 10.0-20.0% of water. According to the waterborne flexographic printing scraping white ink and the preparation method and the application thereof, the solvent-free waterborne polyurethane is adopted, the titanium dioxide is added, no organic solvent exists in the full process, VOC emission is nearly zero, the environment can be effectively protected, and mixing of the different waterborne polyurethane is adopted to achieve the overall effect after printing is performed; materials which harm a human body are not contained, a workshop is free of odor and poisonous gas, and the worker health is guaranteed; even if an end consumer makes contact with scraped ink powder when the end consumer scrapes the ink, health hazards are not generated.
Description
[technical field]
The invention belongs to printing technology, particularly a kind of water-based flexo scrapes chalk and preparation method thereof and application off.
[background technology]
The technology of the present invention is mainly used in a kind of specialty products printing---and lottery ticket instant opening type scrapes chalk printing off.
Instant lottery experienced by following development course: solvent type ink silk screen printing, UV isolate oily combination solvent type silk screening ink, solvent type ink intaglio printing, alcohol dissolubility water color ink flexographic printing.No matter which kind of mode of printing, finished product instant lottery is all made up of such as lower part: from inside to outside, and 1, lottery ticket back side explanatory note; 2, lottery ticket paper; 3, anti-projection layer and false proof layer; 4, lottery data; 5, UV sealing coat; 6, scratch-off layer, scratch-off layer can be divided into two parts again, scrapes that black layer provides ageing-resistant, ply adhesion off, and scraping white off provides covering to scrape black, anti-stick, bottoming off, the performances such as printed thereon picture and text; 7, picture and text layer.In printing process, employing is successively printed, successively dry mode is carried out.
At present, because high VOC discharge, high energy consumption and production efficiency are low, and equipment is difficult to transformation, has domesticly give stricted orders superseded silk screen printing.Domestic production business based on solvent type ink intaglio printing and alcohol dissolubility water color ink flexographic printing, wherein, the complete dependence on import of alcohol dissolubility flexographic ink.Although these two kinds of modes improve production efficiency, but have that high VOC discharges, shortcoming and the risk such as inflammable and explosive.
Be limited by the secrecy technology performance of instant lottery to the particular requirement scraping chalk off, one is can not harden after accelerated deterioration, and two is that face-to-face pressing can not adhesion, and three is that scratch-off layer also wants printing figure message, and four is that hide must anti-perspective prize information.To this, solvent type ink is because its resin system is pliable and tough, surface tension is low, and fast drying is also thorough, and it is thicker that layer of ink can print, and therefore has greater advantage; And entirety selects common flexo water color ink and water-based to scrape chalk off as scraping off black, anti-stick below covering and be the function such as printed thereon picture and text bottoming, then difficulty can not meet the demands very greatly or at all, must solve with the tackling key problem of brand-new technology visual angle, finally we achieve successfully, and the water-based flexo now with environmental-protecting performance scrapes chalk off and can scrape chalk off by replace solvents type completely.
[summary of the invention]
Primary and foremost purpose of the present invention is to overcome the deficiencies in the prior art, provides a kind of water-based flexo to scrape chalk off.
Another object of the present invention is to provide described water-based flexo to scrape the preparation method of chalk off.
Another object of the present invention is to provide described water-based flexo to scrape the application of chalk off.
Object of the present invention is achieved through the following technical solutions: a kind of water-based flexo scrapes chalk off, is grouped into: 15.0-25.0% aqueous polyurethane A, 20.0-30.0% aqueous polyurethane B, 40.0-50.0% titanium dioxide, 2.0-3.0% dispersion agent, 0.1-0.3% defoamer and 10.0-20.0% water by following one-tenth by mass percentage.
Described water-based flexo scrapes particle diameter≤15 μm of chalk off.
The viscosity that described water-based flexo scrapes chalk off is 11-13 〃.
Described water-based flexo scrapes tinting strength >=98% of chalk off.
The pH value that described water-based flexo scrapes chalk off is 8.0-8.2.
Described aqueous polyurethane is the new polyurethane system using water to replace organic solvent as dispersion medium, also claims water dispersible polyurethane, aqueous polyurethane or waterbased urethane; Aqueous polyurethane take water as solvent, pollution-free, safe and reliable, good mechanical performance, consistency are good, be easy to the advantages such as modification.
Described aqueous polyurethane A is preferably PU-208 aqueous polyurethane.
Described aqueous polyurethane B is preferably leatherette paper plastic cement chemical fibre resin HMP-1302.
Described dispersion agent is preferably BYK190 dispersion agent.
Described defoamer is preferably silicone antifoam agent.
Described water is preferably pure water.
Described water-based flexo scrapes the preparation method of chalk off, comprise the steps: 15.0-25.0% aqueous polyurethane A to be poured into material cylinder, under 800rpm stirs, add 2.0-3.0% dispersion agent, 10.0-20.0% water and 40.0-50.0% titanium dioxide, after 800rpm stirs, obtain compound; Described compound is ground to particle diameter≤15 μm, obtains mill base, the pH value regulating mill base is 8.0-8.2, adds 20.0-30.0% aqueous polyurethane B and 0.1-0.3% defoamer, stirs, obtain water-based flexo and scrape chalk off in mill base; Described per-cent is mass percent.
Described grinding is preferably carried out in sand mill.
Described water-based flexo scrapes the invoice that chalk can be applicable to printed lottery tickets and needs to scrape off prize off.
Described lottery ticket is preferably welfare lottery ticket or sports lottery ticket.
The present invention has following advantage and effect relative to prior art:
(1) the present invention adopts solvent-free aqueous polyurethane, and add titanium dioxide, whole process does not have organic solvent, and VOC approximate zero is discharged, can effective protection of the environment.Use polyurethane system instead to increase ink snappiness and weathering resistance, scrape the performance of ink close to solvent-borne type off.Because urethane can accomplish characteristic that is extremely hard and dead-soft, the whole structure after therefore we adopt different aqueous polyurethane Mixed Pinyins to meet printing.Realize wettability by soft aqueous polyurethane, UV sealing coat is well sprawled, pliable and tough after drying and forming-film, scrape feel off good, not dirty hand; Surface hardness is improved, the face-to-face adhesion of printed matter by hard aqueous polyurethane.Further, use aqueous polyurethane system, the inertia close with traditional solvent-borne ink can be obtained, ensure that printing finished product is preserved stable, can not merge between genetic horizon, obtain excellent aging resistance.
(2) the present invention adopts Rutile type Titanium Dioxide and dispersant with high efficiency to prepare water-based flexo and scrapes chalk off, the particle diameter of Rutile type Titanium Dioxide is little, oil number is low and hide, cooperatively interact with dispersion agent, improve the consistency of aqueous polyurethane and titanium dioxide, provide efficient opacifying power, scrape off black with covering, effectively printing instant lottery surface picture and text.
(3) less energy-consumption and low noise: water-based flexo of the present invention scrapes chalk off and hot blast can be adopted to add infrared drying mode, adopts a small amount of high-temperature hot-air to realize drying, reduces energy consumption.Meanwhile, the air quantity needed in drying process is little, effectively can reduce the noise of blower fan, air duct.
(4) high-level efficiency: water-based flexo of the present invention scrapes chalk off and adopts flexographic printing, plate-making efficiency is high, expense is low, and production efficiency also can continue to improve with printing press drying efficiency.
(5) the present invention is not containing the material that works the mischief to human body, workshop odorlessness, without toxic gas, ensure that the health of workman; Terminal consumer contacts the ink powder scraped off when scraping ink off, can not produce Health hazard.
[embodiment]
Below in conjunction with specific embodiment, the present invention is described in further detail.
Burn-in test: 80 humidity 80 temperature accelerated deterioration 24 hours (climatic chamber), pencil hardness instrument hardness test 6B pencil 50 grams of counterweights can scrape printed matter off from sealing coat, and clean noresidue on sealing coat.
Sticky back of the body test: printing sample is face-to-face, pressurization 200-400 Kilogram Force Per Meter
2, printed matter is deposited and is not glued for 24 hours at 80 humidity 80 temperature.
Water-borne acrylic resin comprises Emulsion acrylic resin, aqueous acrylic resin dispersion (also known as water-dilutable vinylformic acid) and acrylic resin aqueous solution.Emulsion to be mainly emulsified in water under water-based free radical initiator causes synthesis by oiliness vinyl monomer, and resin water dispersion is then by free radical solution polymerization or technique synthesis that progressively solution polymerization etc. is different.From particle diameter: emulsion particle diameter > resin water dispersion particle diameter > aqueous solution particle diameter.
Aqueous polyurethane is the new polyurethane system using water to replace organic solvent as dispersion medium, also claims water dispersible polyurethane, aqueous polyurethane or waterbased urethane.Aqueous polyurethane take water as solvent, pollution-free, safe and reliable, good mechanical performance, consistency are good, be easy to the advantages such as modification.
Surface tension be liquid meter surface layer due to molecular attraction unbalanced and produce along the tension force of surface action in arbitrary boundary line.Usually, because environment is different, the molecule being in interface from be in mutually intrinsic molecule stressed be different.A water molecules of water inside be subject to the reactive force of surrounding water molecules to make a concerted effort be 0, but not like this at a water molecules on surface.Because the magnetism of upper sheaf space gas molecule in space to it is less than the magnetism of internal liquid phase molecule to it, so make a concerted effort to be not equal to zero suffered by this molecule, the vertical directional liquid of its resultant direction is inner, the trend that result causes fluid surface to have automatically reducing, and this convergent force is called surface tension.
Surface energy, is in like manner applied to solid state physics, because the bond energy of upper layer atom towards outside is not compensated, makes surperficial particle have extra potential energy than particle in body, is called surface energy.
Embodiment 1
15.0% aqueous polyurethane A (Guangzhou auspicious dimerization chemical product company limited, PU-208) is poured into material cylinder, under 800rpm stirs, add 3.0% dispersion agent (Bick chemistry, BYK190), 20.0% water and 40.0% titanium dioxide (du pont company, R902), after 800rpm stirs, obtain compound; Described compound is placed in sand mill (Kai Xike mechanical means company limited, BT4)) be ground to particle diameter≤15 μm, obtain mill base, the pH value regulating mill base is 8.0,21.7% aqueous polyurethane B (sea, Foshan is along Science and Technology Ltd., HMP-1302) and 0.3% silicone antifoam agent (Guangzhou Chen Hui trade Co., Ltd, DC65) is added in mill base, stir, obtain water-based flexo and scrape chalk off; Described per-cent is mass percent.
Described water-based flexo scrapes chalk outward appearance off for white, its particle diameter≤15 μm (50 μm of double flute Hegman grind gages), viscosity is 11-13 〃 (Japanese 4# cup), tinting strength >=98% (contrasting with standard), pH value is 8.0-8.2 (pH value tester).
Embodiment 2
20.0% aqueous polyurethane A (Guangzhou auspicious dimerization chemical product company limited, PU-208) is poured into material cylinder, under 800rpm stirs, add 3.0% dispersion agent (Bick chemistry, BYK190), 20.0% water and 35.0% titanium dioxide (du pont company, R902), after 800rpm stirs, obtain compound; Described compound is placed in sand mill (Kai Xike mechanical means company limited, BT4)) be ground to particle diameter≤15 μm, obtain mill base, the pH value regulating mill base is 8.0,21.7% aqueous polyurethane B (sea, Foshan is along Science and Technology Ltd., HMP-1302) and 0.3% silicone antifoam agent (Guangzhou Chen Hui trade Co., Ltd, DC65) is added in mill base, stir, obtain water-based flexo and scrape chalk off; Described per-cent is mass percent.Described water-based flexo scrapes chalk outward appearance off for white, its particle diameter≤15 μm (50 μm of double flute Hegman grind gages), viscosity is 11-13 〃 (Japanese 4# cup), tinting strength >=98% (contrasting with standard), pH value is 8.0-8.2 (pH value tester).
Embodiment 3
25.0% aqueous polyurethane A (Guangzhou auspicious dimerization chemical product company limited, PU-208) is poured into material cylinder, under 800rpm stirs, add 2.0% dispersion agent (Bick chemistry, BYK190), 17.0% water and 35.0% titanium dioxide (du pont company, R902), after 800rpm stirs, obtain compound; Described compound is placed in sand mill (Kai Xike mechanical means company limited, BT4)) be ground to particle diameter≤15 μm, obtain mill base, the pH value regulating mill base is 8.0,20.8% aqueous polyurethane B (sea, Foshan is along Science and Technology Ltd., HMP-1302) and 0.2% silicone antifoam agent (Guangzhou Chen Hui trade Co., Ltd, DC65) is added in mill base, stir, obtain water-based flexo and scrape chalk off; Described per-cent is mass percent.
Described water-based flexo scrapes chalk outward appearance off for white, its particle diameter≤15 μm (50 μm of double flute Hegman grind gages), viscosity is 11-13 〃 (Japanese 4# cup), tinting strength >=98% (contrasting with standard), pH value is 8.0-8.2 (pH value tester).
Embodiment 4
15.8% aqueous polyurethane A (Guangzhou auspicious dimerization chemical product company limited, PU-208) is poured into material cylinder, under 800rpm stirs, add 2.0% dispersion agent (Bick chemistry, BYK190), 17.0% water and 35.0% titanium dioxide (du pont company, R902), after 800rpm stirs, obtain compound; Described compound is placed in sand mill (Kai Xike mechanical means company limited, BT4)) be ground to particle diameter≤15 μm, obtain mill base, the pH value regulating mill base is 8.0,30.0% aqueous polyurethane B (sea, Foshan is along Science and Technology Ltd., HMP-1302) and 0.2% silicone antifoam agent (Guangzhou Chen Hui trade Co., Ltd, DC65) is added in mill base, stir, obtain water-based flexo and scrape chalk off; Described per-cent is mass percent.
Described water-based flexo scrapes chalk outward appearance off for white, its particle diameter≤15 μm (50 μm of double flute Hegman grind gages), viscosity is 11-13 〃 (Japanese 4# cup), tinting strength >=98% (contrasting with standard), pH value is 8.0-8.2 (pH value tester).
The above the specific embodiment of the present invention, does not form limiting the scope of the present invention.Any various other done by technical conceive of the present invention change and distortion accordingly, all should be included in the protection domain of the claims in the present invention.
Claims (10)
1. a water-based flexo scrapes chalk off, it is characterized in that, be grouped into by following one-tenth by mass percentage: 15.0-25.0% aqueous polyurethane A, 20.0-30.0% aqueous polyurethane B, 40.0-50.0% titanium dioxide, 2.0-3.0% dispersion agent, 0.1-0.3% defoamer and 10.0-20.0% water.
2. water-based flexo according to claim 1 scrapes chalk off, it is characterized in that, described water-based flexo scrapes particle diameter≤15 μm of chalk off.
3. water-based flexo according to claim 1 scrapes chalk off, it is characterized in that, the viscosity that described water-based flexo scrapes chalk off is 11-13 〃.
4. water-based flexo according to claim 1 scrapes chalk off, it is characterized in that, described water-based flexo scrapes tinting strength >=98% of chalk off; The pH value that described water-based flexo scrapes chalk off is 8.0-8.2.
5. water-based flexo according to claim 1 scrapes chalk off, it is characterized in that, described aqueous polyurethane A is PU-208 aqueous polyurethane.
6. water-based flexo according to claim 1 scrapes chalk off, it is characterized in that, described aqueous polyurethane B is leatherette paper plastic cement chemical fibre resin HMP-1302.
7. water-based flexo according to claim 1 scrapes chalk off, it is characterized in that, described dispersion agent is BYK190 dispersion agent; Described defoamer is silicone antifoam agent.
8. the water-based flexo described in any one of claim 1-7 scrapes the preparation method of chalk off, it is characterized in that, comprise the steps: 15.0-25.0% aqueous polyurethane A to be poured into material cylinder, under 800rpm stirs, add 2.0-3.0% dispersion agent, 10.0-20.0% water and 40.0-50.0% titanium dioxide, after 800rpm stirs, obtain compound; Described compound is ground to particle diameter≤15 μm, obtains mill base, the pH value regulating mill base is 8.0-8.2, adds 20.0-30.0% aqueous polyurethane B and 0.1-0.3% defoamer, stirs, obtain water-based flexo and scrape chalk off in mill base; Described per-cent is mass percent.
9. the water-based flexo described in any one of claim 1-7 scrapes the invoice that chalk is applied to printed lottery tickets and needs to scrape off prize off.
10. water-based flexo according to claim 9 scrapes the application of chalk off, it is characterized in that, described lottery ticket is welfare lottery ticket or sports lottery ticket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222505.7A CN104774500B (en) | 2015-05-04 | 2015-05-04 | Aqueous flexo scrapes chalk and preparation method and application off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510222505.7A CN104774500B (en) | 2015-05-04 | 2015-05-04 | Aqueous flexo scrapes chalk and preparation method and application off |
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| Publication Number | Publication Date |
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| CN104774500A true CN104774500A (en) | 2015-07-15 |
| CN104774500B CN104774500B (en) | 2017-09-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860652A (en) * | 2016-04-28 | 2016-08-17 | 佛山市恒学科技服务有限公司 | Environment-friendly water-based ink |
| CN110143074A (en) * | 2019-05-27 | 2019-08-20 | 青艺（福建）烫画科技有限公司 | Environmental friendly heat transfer printing printed film and preparation method thereof |
| CN117304444A (en) * | 2023-10-31 | 2023-12-29 | 北京中彩印制有限公司 | Water-based polyurethane and preparation method thereof, and water-based scratch-off ink and preparation method thereof |
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| CN102604478A (en) * | 2012-03-25 | 2012-07-25 | 重庆宏图油墨有限公司 | Alcohol-aqueous general composite printing ink and preparation method thereof |
| WO2013088907A1 (en) * | 2011-12-15 | 2013-06-20 | 株式会社セイコーアイ・インフォテック | Inkjet recording ink, ink cartridge, method for manufacturing inkjet recording ink, method for manufacturing ink cartridge, and recording method |
| WO2014076073A1 (en) * | 2012-11-16 | 2014-05-22 | Basf Se | Polyurethanes, dispersions thereof, their preparation and use |
| CN104419250A (en) * | 2013-09-10 | 2015-03-18 | 南雄市连邦化工石油科技有限公司 | Preparation method of water-based black scratch ink |
-
2015
- 2015-05-04 CN CN201510222505.7A patent/CN104774500B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013088907A1 (en) * | 2011-12-15 | 2013-06-20 | 株式会社セイコーアイ・インフォテック | Inkjet recording ink, ink cartridge, method for manufacturing inkjet recording ink, method for manufacturing ink cartridge, and recording method |
| CN102604478A (en) * | 2012-03-25 | 2012-07-25 | 重庆宏图油墨有限公司 | Alcohol-aqueous general composite printing ink and preparation method thereof |
| WO2014076073A1 (en) * | 2012-11-16 | 2014-05-22 | Basf Se | Polyurethanes, dispersions thereof, their preparation and use |
| CN104419250A (en) * | 2013-09-10 | 2015-03-18 | 南雄市连邦化工石油科技有限公司 | Preparation method of water-based black scratch ink |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105860652A (en) * | 2016-04-28 | 2016-08-17 | 佛山市恒学科技服务有限公司 | Environment-friendly water-based ink |
| CN110143074A (en) * | 2019-05-27 | 2019-08-20 | 青艺（福建）烫画科技有限公司 | Environmental friendly heat transfer printing printed film and preparation method thereof |
| CN117304444A (en) * | 2023-10-31 | 2023-12-29 | 北京中彩印制有限公司 | Water-based polyurethane and preparation method thereof, and water-based scratch-off ink and preparation method thereof |
| CN117304444B (en) * | 2023-10-31 | 2024-05-07 | 北京中彩印制有限公司 | Water-based polyurethane and preparation method thereof, and water-based scratch-off ink and preparation method thereof |
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| CN104774500B (en) | 2017-09-26 |
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