CN114634735A - Ink slurry for small character code spraying, preparation method thereof and ink - Google Patents
Ink slurry for small character code spraying, preparation method thereof and ink Download PDFInfo
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- CN114634735A CN114634735A CN202210452320.5A CN202210452320A CN114634735A CN 114634735 A CN114634735 A CN 114634735A CN 202210452320 A CN202210452320 A CN 202210452320A CN 114634735 A CN114634735 A CN 114634735A
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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
-
- 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 printing ink, and discloses printing ink slurry for small character code spraying, which comprises the following components: 35-45% of infrared dual-wavelength developing dye; AKN 22100.1-2%; AKN 2100.1-3%; 1-3% of titanium dioxide; 10-35% of acrylic resin; 5260 type hyperdispersant 1.5-2%; the balance being organic solvent. The slurry adopts AKN2210 and AKN210 as a composite grinding stabilizer and a slurry stabilizer, and under the action of titanium dioxide, the ground slurry has high stability and can be kept for a long time without layering in high and low temperature environments; the size is fine in code spraying, can be developed under the action of infrared rays, and has a good hidden anti-counterfeiting effect. Meanwhile, the invention also discloses a preparation method of the slurry and the ink.
Description
Technical Field
The invention relates to the field of printing ink, in particular to printing ink slurry for small character code spraying, a preparation method thereof and printing ink.
Background
The infrared invisible ink can be used for aspects of banknote anti-counterfeiting, packaging code spraying and the like, and CN2020110143473 discloses a perovskite quantum dot invisible ink-jet printing ink which comprises the following components: polymethyl methacrylate/perovskite quantum dot resin powder, resin, a defoaming agent, a surfactant and an 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 dot, so that the stability of the perovskite quantum dot is improved, and the quantum yield is improved. Compared with the traditional anti-counterfeiting ink, the invisible ink-jet printing ink prepared from polymethyl methacrylate/perovskite quantum dot resin powder has better dispersibility, adhesiveness and stability when being used as the anti-counterfeiting mark, so that the fluorescent stability is good, the color development range is wide, and the decay is not easy to occur.
The scheme is that perovskite quantum dots are subjected to coating treatment to improve stability.
Commercially available infrared dual wavelength development dyes are used by this company and the biggest problem with such dyes is delamination. Therefore, during the printing process, the ink in the ink box is often stirred or shaken to avoid deposition and delamination.
Therefore, the technical problem that the present scheme was solved is: how to improve the storage stability of the ink slurry.
Disclosure of Invention
The invention aims to provide ink slurry for code spraying of small characters, which adopts AKN2210 and AKN210 as a composite grinding stabilizer and a slurry stabilizer, under the action of titanium dioxide, the ground slurry has high stability and can be kept for a long time without layering in high and low temperature environments;
the size is fine in code spraying, can be developed under the action of infrared rays, and has a good hidden anti-counterfeiting effect.
Meanwhile, the invention also discloses a preparation method of the slurry and the ink.
In order to achieve the purpose, the invention provides the following technical scheme: an ink paste for small character code spraying comprises the following components:
35 to 45 percent of infrared developing dye
AKN2210 0.1-2％；
AKN210 0.1-3％；
1-3% of titanium dioxide;
10-35% of acrylic resin;
5260 type hyperdispersant 1.5-2%;
the balance being organic solvent.
The ink paste for spraying the small characters comprises the following components:
35 to 45 percent 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 type hyperdispersant 1.5-2%;
the balance being 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 paste for small character code spraying, the titanium dioxide is titanium dioxide according with the national standard GB/T1706-2006.
In the ink slurry for small character code spraying, the organic solvent is at least one of butanone, ethylene glycol ethyl ether, acetone, ethylene glycol butyl ether and methanol.
Meanwhile, the invention also discloses a preparation method of the ink slurry for small character code spraying, which comprises the following steps:
step 1: mixing the 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;
and step 3: grinding, and controlling the temperature to be lower than 35 ℃; the material was sampled every day for analysis of particle size and discharged when the particle size was below 1 μm or less.
Finally, the invention also discloses ink for spraying codes on small characters, which comprises the slurry, a conductive agent, an auxiliary agent and a diluent;
wherein, the slurry accounts for 20 to 30 percent;
1-5% of a conductive agent;
1-3% of an auxiliary agent;
12-17% of acrylic resin;
THIXATROL ST thixotropic agent 1.5-2.5%;
the rest of the diluent is.
In the ink for printing the small character code, the conductive agent is provided by Shengji (plunge pool) energy science and technology limited, Guangzhou city Euro Chen Qi chemical new material limited or Shenzhen city Shengtian Feng science and technology limited.
In the ink for spraying the code to the small characters, the diluent is butanone and/or acetone.
In the ink for spraying the code to the small characters, the auxiliary agent is a defoaming agent and/or a surfactant.
Compared with the prior art, the invention has the beneficial effects that:
according to the slurry, AKN2210 and AKN210 are used as a composite grinding stabilizer and a slurry stabilizer, and under the action of titanium dioxide, the ground slurry has high stability and can be kept for a long time without layering in high and low temperature environments;
the size is fine in code spraying, can be developed under the action of infrared rays, and has a good hidden anti-counterfeiting effect.
Drawings
Fig. 1 shows the final results of example 1 and comparative example 3 after the room temperature test.
FIG. 2 shows a pattern in a natural light state after ink jet printing;
fig. 3 shows an image viewed with a handheld scanner after inkjet printing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The ink slurry for spraying the code to the small characters is prepared by the following steps:
step 1: mixing the 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;
and step 3: grinding, and controlling the temperature to be lower than 35 ℃; the material was sampled every day for analysis of particle size, and discharged when particle size was below 1 μm, for about 3-5 days.
The formulation can be referred to in table 1 below.
TABLE 1 slurry formulation
| Material(s) | The dosage is weight portion |
| Infrared double-wavelength developing dye | 40 |
| AKN2210 | 0.5 |
| AKN210 | 0.5 |
| Titanium white powder | 2 |
| Acrylic resin | 20 |
| 5260 hyperdispersant | 2 |
| Butanone: acetone 1:1 | to 100 |
Examples 2 to 6
The preparation method refers to example 1, and the formulation refers to table 2 below.
TABLE 2 slurry formulations
| Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | |
| Infrared double-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 hyperdispersant | 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
The preparation method refers to example 1, and the formulation refers to table 3 below.
TABLE 3 slurry formulation
| Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Infrared double-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 hyperdispersant | 2 | 2 | 2 |
| Butanone: acetone 1:1 | to 100 | to 100 | to 100 |
The slurries of examples 1 to 6 and the slurries of comparative examples 1 and 2 are not visually distinct.
Comparative example 3 is apparent with macroscopic powder precipitation. In order to test the formula stability of each component, the normal temperature stability, the low temperature stability and the high temperature stability were tested.
The formula of the printing ink is as follows:
25 wt% of slurry;
2 wt% of a conductive agent;
1 wt% of defoaming agent;
2 wt% of a surfactant;
15% of acrylic resin;
THIXATROL ST thixotropic agent 2%;
the rest of the diluent is.
The acrylic resin of the paste and the acrylic resin of the ink are Mitsubishi thermoplastic acrylic resin BR-106.
Under the condition of stirring and dispersing, the conductive agent, the defoaming agent and the surfactant are added into the diluent, and then the slurry is slowly added and stirred uniformly.
Testing normal temperature stability, low temperature stability and high temperature stability: adding the ink into a container, stirring and dispersing uniformly, and then placing the container in an environment with the temperature of 5 ℃, 25 ℃ and 50 ℃ for testing.
The total number of samples is 9, and the samples are respectively A-H samples which correspond to examples 1-6 and comparative examples 1 and 2 in sequence; the test in this section 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 ink jet printing;
FIG. 3 shows an image viewed with a handheld scanner after ink jet 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 less than 880nm infrared spectrum, and the wavelength of the receiving window is more than 920 nm; the receiving window is provided with two layers of filters, the first filter is used for filtering wavelengths above 916nm, and the second filter is used for filtering wavelengths below 850 nm.
The stability test results are given 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 | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | 32 days | 27 days |
| At normal temperature | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days |
| High temperature | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days | More than 60 days |
It can be seen from the above tests that examples 1-6 of the present invention have significant advantages at low temperatures compared to comparative examples 1 and 2.
Claims (10)
1. The ink paste for spraying the code on the small characters is characterized by comprising the following components:
35 to 45 percent of infrared developing dye
AKN2210 0.1-2％；
AKN210 0.1-3％；
1-3% of titanium dioxide;
10-35% of acrylic resin;
5260 type hyperdispersant 1.5-2%;
the balance being organic solvent.
2. The ink paste for spraying small characters according to claim 1, comprising the following components:
35 to 45 percent 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 type hyperdispersant 1.5-2%;
the balance being organic solvent.
3. The ink paste for spraying small characters with codes according to claim 1 or 2, wherein the infrared developing dye is Cs-Pb (Cu/Sn) -Br perovskite quantum dots, and the acrylic resin is Mitsubishi thermoplastic acrylic resin BR-106.
4. The ink paste for small character code spraying according to claim 1 or 2, characterized in that the titanium dioxide is titanium dioxide according with the national standard GB/T1706-2006.
5. The ink paste for printing a code for small characters according to claim 1 or 2, wherein the organic solvent is at least one of methyl ethyl ketone, ethylene glycol ethyl ether, acetone, ethylene glycol butyl ether, and methanol.
6. A method for preparing the ink paste for spraying small characters according to any one of claims 1 to 5, comprising the steps of:
step 1: mixing the 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;
and step 3: grinding, and controlling the temperature to be lower than 35 ℃; the material was sampled every day for analysis of particle size and discharged when the particle size was below 1 μm or less.
7. An ink for printing a code for a small character, comprising the paste according to any one of claims 1 to 5, a conductive agent, an auxiliary agent, a diluent;
wherein, the slurry accounts for 20 to 30 percent;
1-5% of a conductive agent;
1-3% of an auxiliary agent;
12-17% of acrylic resin;
THIXATROL ST thixotropic agent 1.5-2.5%;
the rest of the diluent is.
8. The ink for printing the small character according to claim 7, wherein the conductive agent is provided by Sheng (Tan) energy technology Limited, Guangzhou City Auger New chemical Material Limited or Shenzhen Sheng Tianfeng technology Limited.
9. The ink for spraying small characters according to claim 7, wherein the diluent is methyl ethyl ketone and/or acetone.
10. The ink for spraying a code to small characters according to claim 7, 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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| 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 CN114634735B (en) | 2023-05-09 |
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