CN114634735B - Ink paste for small character code spraying, preparation method thereof and ink - Google Patents
Ink paste for small character code spraying, preparation method thereof and ink Download PDFInfo
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- CN114634735B CN114634735B CN202210452320.5A CN202210452320A CN114634735B CN 114634735 B CN114634735 B CN 114634735B CN 202210452320 A CN202210452320 A CN 202210452320A CN 114634735 B CN114634735 B CN 114634735B
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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
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
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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
- C09D11/30—Inkjet printing inks
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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
- C09D11/50—Sympathetic, colour changing or similar inks
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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)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention belongs to the field of ink, and discloses ink slurry for small character code spraying, which comprises the following components: 35-45% of infrared dual-wavelength developing dye; AKN2210 2210.1-2%; AKN210, 0.1-3%; 1-3% of titanium dioxide; 10-35% of acrylic resin; 5260 hyperdispersant 1.5-2%; the balance of organic solvent. The slurry adopts AKN2210 and AKN210 as a composite grinding stabilizer and a slurry stabilizer, and the ground slurry has high stability under the action of titanium dioxide, and can be kept from layering for a long time under high and low temperature environments; the paste is fine in code spraying, can be developed under the action of infrared rays, and has a particularly good hidden anti-counterfeiting effect. Meanwhile, the invention also discloses a preparation method of the sizing agent and the printing ink.
Description
Technical Field
The invention relates to the field of ink, in particular to ink slurry for small character code spraying, a preparation method thereof and ink.
Background
The infrared invisible ink can be used for banknote anti-counterfeiting, packaging code spraying and other aspects, and CN2020110143473 discloses perovskite quantum dot invisible ink-jet printing ink which comprises the following components: polymethyl methacrylate/perovskite quantum dot resin powder, resin, defoamer, surfactant and ink solvent. The polymethyl methacrylate/perovskite quantum dot resin powder prepared by the method is of a core-shell structure, and the polymethyl methacrylate is coated outside the perovskite quantum dots, so that the stability of the perovskite quantum dots is improved, and the quantum yield is improved. Compared with the traditional anti-counterfeit ink, the invisible ink-jet printing ink prepared by using the polymethyl methacrylate/perovskite quantum dot resin powder has better dispersibility, adhesiveness and stability when being used as the anti-counterfeit mark, so that the fluorescent ink has good fluorescence stability, wide color development range and difficult decay.
The scheme is to coat perovskite quantum dots to improve stability.
The most serious problem faced by this company is delamination, which is a commercially available infrared dual wavelength developing dye. Therefore, in the printing process, the ink in the ink box is often stirred or rocked to avoid deposition layering.
Therefore, the technical problem solved by the scheme is as follows: how to improve the storage stability of the ink paste.
Disclosure of Invention
The invention aims to provide ink slurry for small character code spraying, which adopts AKN2210 and AKN as a composite grinding stabilizer and a slurry stabilizer, and the ground slurry has high stability under the action of titanium dioxide and can keep long-term delamination under high and low temperature environments;
the paste is fine in code spraying, can be developed under the action of infrared rays, and has a particularly good hidden anti-counterfeiting effect.
Meanwhile, the invention also discloses a preparation method of the sizing agent and the printing ink.
In order to achieve the above purpose, the present invention provides the following technical solutions: an ink paste for small character code spraying comprises the following components:
35-45% of infrared developing dye
AKN2210 0.1-2％；
AKN210 0.1-3％；
1-3% of titanium dioxide;
10-35% of acrylic resin;
5260 hyperdispersant 1.5-2%;
the balance of organic solvent.
The ink paste for small character code spraying comprises the following components:
35-45% of infrared developing dye
AKN2210 0.1-0.5％；
AKN210 0.1-0.5％；
2-3% of titanium dioxide;
15-25% of acrylic resin;
5260 hyperdispersant 1.5-2%;
the balance of organic solvent.
In the ink paste for small character code spraying, the infrared developing dye is Cs-Pb (Cu/Sn) -Br perovskite quantum dots, and the acrylic resin is Mitsubishi thermoplastic acrylic resin BR-106.
In the ink slurry for small character code spraying, the titanium dioxide is titanium dioxide conforming to national standard GB/T1706-2006.
In the ink paste for small character code spraying, the organic solvent is at least one of butanone, ethylene glycol diethyl ether, acetone, ethylene glycol butyl ether and methanol.
Meanwhile, the invention also discloses a preparation method of the ink paste for small character code spraying, which comprises the following steps:
step 1: mixing other raw materials except the infrared developing dye, and uniformly dispersing;
step 2: adding an infrared developing dye and alumina grinding beads, wherein the volume ratio of the solution to the alumina grinding beads is 1:1;
step 3: grinding, wherein the temperature is controlled to be lower than 35 ℃; the particle size of the analyzed material was sampled every day, and discharged when the particle size was less than 1 μm or less.
Finally, the invention also discloses ink for small character code spraying, which comprises any one of the sizing agent, a conductive agent, an auxiliary agent and a diluent;
wherein, the slurry is 20-30%;
1-5% of a conductive agent;
1-3% of an auxiliary agent;
12-17% of acrylic resin;
1.5 to 2.5 percent of THIXATROL ST thixotropic agent;
the balance of the diluent.
In the ink for small character code spraying, the conductive agent is provided by Shenghe (pudding) energy science and technology limited company, guangzhou, eugenia chemical new material limited company or Shenzhen Shengtan Feng science and technology limited company.
In the ink for small character code spraying, the diluent is butanone and/or acetone.
In the ink for small character code spraying, the auxiliary agent is an antifoaming agent and/or a surfactant.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, AKN2210 and AKN are adopted as composite grinding stabilizers and slurry stabilizers, and the ground slurry has high stability under the action of titanium dioxide, and can be kept from layering for a long time under high and low temperature environments;
the paste is fine in code spraying, can be developed under the action of infrared rays, and has a particularly good hidden anti-counterfeiting effect.
Drawings
Fig. 1 shows the final results of example 1 and comparative example 3 after the normal temperature test.
Fig. 2 shows a pattern in a natural light state after inkjet printing;
fig. 3 shows an image observed by means of a hand-held scanner after inkjet printing.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The ink paste for small character code spraying comprises the following preparation method:
step 1: mixing other raw materials except the infrared developing dye, and uniformly dispersing;
step 2: adding an infrared developing dye and alumina grinding beads, wherein the volume ratio of the solution to the alumina grinding beads is 1:1;
step 3: grinding, wherein the temperature is controlled to be lower than 35 ℃; the analyzed material was sampled every day for particle size, and discharged when the particle size was less than 1 μm or less, for about 3 to 5 days.
The formulation is referred to in Table 1 below.
Table 1 slurry formulation
| Material | Weight portion of the dosage |
| Infrared dual wavelength developing dye | 40 |
| AKN2210 | 0.5 |
| AKN210 | 0.5 |
| Titanium white powder | 2 |
| Acrylic resin | 20 |
| 5260 type hyper-dispersant | 2 |
| Butanone: acetone=1:1 | to 100 |
Examples 2 to 6
Preparation method referring to example 1, the formulation is referred to in table 2 below.
Table 2 slurry formulation
| Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Infrared dual wavelength developing dye | 40 | 40 | 45 | 35 | 35 |
| AKN2210 | 0.2 | 0.1 | 1 | 3 | 1 |
| AKN210 | 0.1 | 0.2 | 2 | 3 | 1 |
| Titanium white powder | 2.7 | 2.7 | 3 | 3 | 3 |
| Acrylic resin | 21 | 25 | 20 | 30 | 35 |
| 5260 type hyper-dispersant | 2 | 2 | 1.8 | 1.5 | 1.6 |
| Butanone: acetone=1:1 | to 100 | to 100 | to 100 | to 100 | to 100 |
Comparative example 1
Preparation method referring to example 1, the formulation is referred to in table 3 below.
Table 3 slurry formulation
| Comparative example1 | Comparative example 2 | Comparative example 3 | |
| Infrared dual wavelength developing dye | 40 | 40 | 40 |
| AKN2210 | 1 | 0 | 0 |
| |
0 | 1 | 0 |
| Titanium white powder | 2 | 2 | 3 |
| Acrylic resin | 20 | 20 | 20 |
| 5260 type hyper-dispersant | 2 | 2 | 2 |
| Butanone: acetone=1:1 | to 100 | to 100 | to 100 |
The slurries of examples 1-6 and the slurries of comparative examples 1 and 2 were not clearly different from each other in appearance.
Comparative example 3 is apparent with a macroscopic powder deposit. For the experiment of the formula stability of each component, the test of normal temperature stability, low temperature stability and high temperature stability was performed respectively.
The ink comprises the following components:
25wt% of slurry;
2wt% of a conductive agent;
1wt% of defoaming agent;
2wt% of a surfactant;
15% of acrylic resin;
THIXATROL ST thixotropic agent 2%;
the balance of the diluent.
The acrylic resin of the sizing agent and the printing ink is Mitsubishi thermoplastic acrylic resin BR-106.
Under the condition of stirring and dispersing, adding the conductive agent, the defoaming agent and the surfactant into the diluent, slowly adding the slurry, and stirring uniformly.
Testing normal temperature stability, low temperature stability and high temperature stability: adding the ink into a container, stirring and dispersing, and then placing the container in an environment of 5 ℃, 25 ℃ and 50 ℃ for testing.
The samples were 9 total samples, A-H samples, corresponding to examples 1-6, comparative examples 1 and 2 in order; this part of the test was not performed since delamination was clearly visible in comparative example 3.
Fig. 1 shows the final results of example 1 (right side) and comparative example 3 (left side) after the room temperature test.
Fig. 2 shows a pattern in a natural light state after inkjet printing;
FIG. 3 shows an image viewed by means of a hand-held scanner after inkjet printing; the scanning end of the handheld scanner is provided with a light source and a receiving window; the wavelength of the light source is infrared spectrum less than 880nm, and the wavelength of the receiving window is more than 920nm; the receiving window is provided with two layers of filter plates, the first-stage filter plate is used for filtering wavelengths with the wavelength of 916nm or more, and the second-stage filter plate is used for filtering wavelengths with the wavelength of 850nm or less.
The stability test results are shown in the following table:
table 4 test results
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example 1 | Comparative example 2 | |
| Low temperature | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | For 32 days | For 27 days |
| Normal temperature | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 |
| High temperature | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 | Day > 60 |
As can be seen from the above test, examples 1 to 6 of the present invention have significant advantages at low temperatures as compared with comparative examples 1 and 2.
Claims (9)
1. An ink paste for small character code spraying, which is characterized by comprising the following components:
35-45% of infrared developing dye
AKN2210 0.1-2％；
AKN210 0.1-3％；
1-3% of titanium dioxide;
10-35% of acrylic resin;
5260 hyperdispersant 1.5-2%;
the balance of organic solvent;
the infrared developing dye is Cs-Pb (Cu/Sn) -Br perovskite quantum dots, and the acrylic resin is Mitsubishi thermoplastic acrylic resin BR-106.
2. The ink paste for small character code spraying according to claim 1, comprising the following components:
35-45% of infrared developing dye
AKN2210 0.1-0.5％；
AKN210 0.1-0.5％；
2-3% of titanium dioxide;
15-25% of acrylic resin;
5260 hyperdispersant 1.5-2%;
the balance of organic solvent.
3. The ink paste for small character code spraying according to claim 1 or 2, wherein the titanium white powder is titanium white powder conforming to national standard GB/T1706-2006.
4. The ink paste for small character code spraying according to claim 1 or 2, wherein the organic solvent is at least one of butanone, ethylene glycol diethyl ether, acetone, ethylene glycol butyl ether, and methanol.
5. A method for preparing the ink paste for small character code spraying according to any one of claims 1 to 4, comprising the steps of:
step 1: mixing other raw materials except the infrared developing dye, and uniformly dispersing;
step 2: adding an infrared developing dye and alumina grinding beads, wherein the volume ratio of the solution to the alumina grinding beads is 1:1;
step 3: grinding, wherein the temperature is controlled to be lower than 35 ℃; the particle size of the analyzed material was sampled every day, and discharged when the particle size was less than 1 μm or less.
6. An ink for small character code spraying, which is characterized by comprising the slurry, a conductive agent, an auxiliary agent and a diluent according to any one of claims 1-4;
wherein, the slurry is 20-30%;
1-5% of a conductive agent;
1-3% of an auxiliary agent;
12-17% of acrylic resin;
1.5 to 2.5 percent of THIXATROLST thixotropic agent;
the balance of the diluent.
7. The ink for small character code spraying according to claim 6, wherein the conductive agent is provided by Shenghe pudding energy science and technology limited, guangzhou, euchen chemical New material limited or Shenzhen Shengtan Feng science and technology limited.
8. The ink for small character code spraying according to claim 6, wherein the diluent is butanone and/or acetone.
9. The ink for small character code spraying according to claim 6, wherein the auxiliary agent is an antifoaming agent and/or a surfactant.
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| CN202210452320.5A CN114634735B (en) | 2022-04-27 | 2022-04-27 | Ink paste for small character code spraying, preparation method thereof and ink |
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| CN114634735B true CN114634735B (en) | 2023-05-09 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532235A (en) * | 2003-03-25 | 2004-09-29 | 中国印钞造币总公司 | Friction color changing infrared hidden anti-fake ink |
| CN101225265B (en) * | 2007-01-16 | 2011-04-27 | 中国印钞造币总公司 | False-proof ink having obvious contrast for absorption/reflection of different-waveband infrared lights |
| CN103509407A (en) * | 2013-10-25 | 2014-01-15 | 张家港市威迪森油墨有限公司 | Blue fluorescent ink |
| CN103589243A (en) * | 2013-11-04 | 2014-02-19 | 张家港市威迪森油墨有限公司 | Fluorescent ink |
| CN103627251A (en) * | 2013-11-20 | 2014-03-12 | 张家港任发化工材料有限公司 | Anti-forgery ink |
| CN103819961B (en) * | 2014-02-08 | 2015-12-02 | 江苏唐彩油墨科技有限公司 | A kind of ethanol-soluble type intaglio plate light becomes, infrared rays anti-forgery ink |
| CN104194490A (en) * | 2014-09-26 | 2014-12-10 | 苏州中亚油墨有限公司 | Novel fluorescent ink |
| CN108912843A (en) * | 2018-08-15 | 2018-11-30 | 芜湖扬展新材料科技服务有限公司 | Infrared or Fluorescent Falsification-resistant Ink of one kind and preparation method thereof |
| JP7195413B2 (en) * | 2019-03-29 | 2022-12-23 | 富士フイルム株式会社 | Inkjet ink for infrared absorption imaging, infrared absorption imaging method, and image forming method |
| IT201900005354A1 (en) * | 2019-04-08 | 2020-10-08 | Epta Inks S P A | Anti-counterfeiting security ink absorbing radiation in the part of the electromagnetic spectrum from 700nm to 1100nm |
| CN111040513A (en) * | 2019-12-03 | 2020-04-21 | 深圳市华星光电半导体显示技术有限公司 | Ink, manufacturing method thereof and display device |
| CN112126280B (en) * | 2020-09-24 | 2022-10-04 | 苏州昭慧防伪科技有限公司 | Perovskite quantum dot invisible ink-jet printing ink |
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2022
- 2022-04-27 CN CN202210452320.5A patent/CN114634735B/en active Active
Non-Patent Citations (2)
| Title |
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| Abou-Melha.《Preparation of photoluminescent nanocomposite ink toward dual-mode secure anti-counterfeiting stamps》.《Arabian Journal of Chemistry》.2021,第15卷(第2期),第1-10页. * |
| 汤伟冲.《浅谈防伪油墨技术的现状与发展》.《中国防伪报道》.2021,(第12期),第102-104页. * |
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