CN113072840A - Thermal sublimation ink based on compound disperse black dye and preparation method thereof - Google Patents
Thermal sublimation ink based on compound disperse black dye and preparation method thereof Download PDFInfo
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- CN113072840A CN113072840A CN202110278766.6A CN202110278766A CN113072840A CN 113072840 A CN113072840 A CN 113072840A CN 202110278766 A CN202110278766 A CN 202110278766A CN 113072840 A CN113072840 A CN 113072840A
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- black dye
- disperse
- sublimation ink
- disperse black
- thermal sublimation
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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
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/328—Inkjet printing inks characterised by colouring agents characterised by 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/30—Ink jet printing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides a thermal sublimation ink based on a compound disperse black dye and a preparation method thereof. The thermal sublimation ink based on the compound disperse black dye comprises, by weight, 35% -75% of color paste, 0.5% -5% of a leveling agent, 5% -25% of a solvent and 40% -75% of water, wherein the total mass of the thermal sublimation ink based on the compound disperse black dye is 100%; the color paste comprises the following raw materials in parts by weight: 15-30 parts of disperse black dye, 5-30 parts of dispersing agent, 5-10 parts of surfactant, 1-10 parts of wetting agent and 40-70 parts of water. The invention also provides a preparation method of the thermal sublimation ink based on the compound disperse black dye. The thermal sublimation ink based on the compound disperse black dye is high in coloring rate and stability and more environment-friendly.
Description
Technical Field
The invention belongs to the technical field of thermal sublimation ink, and particularly relates to thermal sublimation ink which is based on compound disperse black dye and has high tinting rate, high stability and more environmental protection, and a preparation method thereof.
Background
With the rapid development of printing technology, the wide application of nano-grinding technology, the design and customization of personalized clothes and the investment of novel digital painting mechanical equipment, digital textile ink has also been developed unprecedentedly, and the sublimation ink is applied to the customization of personalized products, such as cups, crystals, T-shirts and the like with various patterns by transfer printing, due to bright color, high resolution and flexible operation. With the improvement of the requirements of people on digital printing, the nozzles used by the ink-jet printer are further updated, and the nozzles with smaller apertures and higher printing precision are developed. The corresponding requirement on the stability of the dispersed ink is higher, the particle size of the dye is required to be finer, and the printing smoothness is more stable.
Disclosure of Invention
In order to solve the problems of the prior art, an object of the present invention is to provide a sublimation ink having high stability and being more environmentally friendly, and a method for preparing the same.
In order to achieve the purpose, the invention provides thermal sublimation ink based on a compound disperse black dye, and the thermal sublimation ink based on the compound disperse black dye comprises, by taking the total mass of the thermal sublimation ink based on the compound disperse black dye as 100%, 35-75% of color paste, 0.5-5% of a leveling agent, 5-25% of a solvent and 40-75% of water; the color paste comprises the following raw materials in parts by weight: 15-30 parts of disperse black dye, 5-30 parts of dispersing agent, 5-10 parts of surfactant, 1-10 parts of wetting agent and 40-70 parts of water.
In one embodiment of the present invention, the dispersant used is a commercially available solid acrylic resin or acrylic resin liquid. Wherein, the solid acrylic resin needs to be dissolved into solution before being used.
In one embodiment of the present invention, the surfactant is one or more selected from lignosulfonate, alkylnaphthalene sulfonate, sodium naphthalene sulfonate formaldehyde polycondensate and anionic sulfonate.
In a specific embodiment of the present invention, the disperse black dye is a compound disperse black dye of disperse brown 27, disperse blue 360 and disperse yellow 54. Wherein the mass ratio of the disperse brown 27 to the disperse blue 360 to the disperse yellow 54 is 52:39: 9.
In one embodiment of the present invention, the solvent used is a mixture of one or more selected from polyhydric alcohols; preferred polyhydric alcohols include diethylene glycol, ethylene glycol, 1, 3-propanediol, 1, 4-butanediol, 1, 6-hexanediol, glycerol, D-sorbitol, 1,2, 6-hexanetriol, and trimethylolpropane.
In one embodiment of the invention, the wetting agent is BYK346, BYK3455, BYK 3410; the leveling agent is TEGO FLOW 370.
The invention also provides a preparation method of the high-stability thermal sublimation ink based on the disperse black dye, which comprises the following steps:
(a) shearing and dispersing a wetting agent, a surfactant, a dispersing agent and water; adding a disperse black dye, and carrying out shear dispersion;
(b) grinding the product obtained in the step (a) by using zirconia beads, and stopping grinding after the particle size is qualified;
(c) filtering the slurry obtained in the step (b) to obtain a finished product of color paste;
(d) and mixing the color paste with a flatting agent, a solvent and water to obtain the thermal sublimation ink.
In one embodiment of the invention, in the step (b), zirconia beads with the specification of 0.6-0.8mm, 0.25-0.35mm and 0.1-0.2mm are sequentially used for grinding, and the grain diameter after grinding is D50 ≤ 70 nm.
In one embodiment of the present invention, in the step (d), the dye content in the thermal sublimation ink is 5% to 9%.
Compared with the traditional aqueous dispersant, the thermal sublimation ink based on the compound disperse black dye has more obvious help on the stability of the disperse dye ink. The acrylic resin is a generic name of polymers of acrylic acid, methacrylic acid and derivatives thereof, is a polymer prepared by polymerizing acrylic acid or acrylic acid derivatives as monomers or copolymerizing the acrylic acid or acrylic acid derivatives with other unsaturated compounds mainly, and can synthesize acrylic resins with different types, different performances and different application occasions by selecting different resin structures, different formulas, different production processes and solvent compositions. The dispersing agent is used in the color paste for dispersing the ink, so that the grinding efficiency of the color paste can be improved, the power consumption is saved, the cost is reduced, and the stability of the color paste is better.
Detailed Description
The thermal sublimation ink based on the compound disperse black dye comprises the following components in percentage by mass: 35-75% of color paste, 0.5-5% of flatting agent, 5-25% of solvent and 40-75% of deionized water; the color paste comprises the following raw materials in parts by weight: 15-30 parts of disperse black dye, 5-30 parts of dispersant, 5-10 parts of surfactant, 1-10 parts of wetting agent and 40-70 parts of deionized water. The disperse black dye is a compound disperse black dye of disperse brown 27, disperse blue 360 and disperse yellow 54.
The dispersing agent is selected from commercial solid acrylic resin or acrylic resin liquid, and the solid acrylic resin needs to be dissolved into solution before use. Mixing the solid acrylic resin and deionized water according to a certain proportion, heating, stirring and dissolving, and adding monoethanolamine, diethanolamine, triethanolamine or ammonia water to regulate pH value of the solution to 6-8. Such as Indrez SR 20, Indrez SR 100, Basff Joncryl 8383 and Basff Joncryl 7660.
The surfactant is one or more selected from lignosulfonate, alkyl naphthalene sulfonate, sodium naphthalene sulfonate formaldehyde polycondensate and anionic sulfonate, preferably the mixture of the naphthalene sulfonate formaldehyde polycondensate and the anionic sulfonate. Such as MORCET D-450, MORCET D-500.
The solvent is one or more selected from polyhydric alcohols including diethylene glycol, ethylene glycol, 1, 3-propanediol, 1, 4-butanediol, 1, 6-hexanediol, glycerol, D-sorbitol, 1,2, 6-hexanetriol, and trimethylolpropane.
Wetting agents such as BYK346, BYK3455, BYK 3410; leveling agents, such as TEGO FLOW370 and the like.
The invention also provides a preparation method of the thermal sublimation ink based on the compound disperse black dye, which comprises the following steps:
(a) adding wetting agent, surfactant, dispersant and deionized water into a container in a formula amount in sequence, and shearing and dispersing; continuously adding the disperse black dye with the formula amount into the container, and shearing and dispersing;
(b) grinding the product obtained in the step (a) by adopting zirconia beads with different particle sizes, and stopping grinding after the particle size is qualified;
(c) filtering the slurry obtained in the step (b) by a filter element to obtain a finished product of color paste;
(d) and mixing the color paste, the flatting agent, the solvent and the deionized water in proportion to obtain the thermal sublimation ink.
In the step (b), zirconia beads with the specifications of 0.6-0.8mm, 0.25-0.35mm and 0.1-0.2mm are used for grinding so that the particle size of the dye particles is D50 not more than 70 nm. In the step (d), the content of the dye in the thermal sublimation ink is 5-9%.
The following detailed description of preferred embodiments of the invention will be made.
Examples 1 to 10 and comparative examples 1 to 3
Examples 1 to 10 and comparative examples 1 to 3 each provide a thermal sublimation ink based on a disperse black dye, and in order to compare the influence of color paste on the performance of the thermal sublimation ink during preparation, the thermal sublimation ink is prepared by adopting the following fixed mass ratio: 35% of color paste, 5% of flatting agent (TEGO FLOW370), 50% of water and 10% of solvent. The color paste has the composition shown in Table 1;
the specific preparation method comprises the following steps:
(1) shearing and dispersing a wetting agent, a surfactant, a dispersing agent and water; adding disperse black dye (the mass ratio of disperse brown 27, disperse blue 360 and disperse yellow 54 is 52:39:9), and performing shear dispersion; sequentially using zirconia beads with the diameters of 0.6-0.8mm, 0.25-0.35mm and 0.1-0.2mm in a sand mill, and rotating at the speed of 2200-; (2) filtering the color paste by using a three-level online filter; (3) and preparing the filtered finished color paste, the flatting agent, the solvent and the water into the thermal sublimation ink according to a proportion.
TABLE 1 color paste formulation ratios of thermal sublimation inks in examples 1 to 12 and comparative examples 1 to 3
Comparative example 4
This comparative example is essentially the same as example 1, except that:
the composition comprises the following components in percentage by mass: 20% of color paste, 5% of flatting agent, 30% of solvent and 45% of deionized water; the color paste comprises the following raw materials in parts by weight: 35 parts of disperse black dye, 3 parts of dispersant, 10 parts of surfactant, 2 parts of wetting agent and 50 parts of deionized water.
Comparative example 5
This comparative example is essentially the same as example 1, except that:
the disperse black dye is prepared by mixing disperse brown 27, disperse blue 360 and disperse yellow 54 at a ratio of 55:37: 8.
Comparative example 6
This comparative example is essentially the same as example 1, except that: the dispersant is barium stearate.
And (3) stability testing: the stability of the ink was measured after aging in an oven at 60 ℃ for 7 days, and the results of the measurements including the particle size D99 of the ink and the difference in absorbance between the upper and lower layers are shown in Table 2.
TABLE 2 results of performance tests of the sublimation inks based on the pastes of examples 1 to 10 and comparative examples 1 to 6
| Aging time | Particle size D99(nm) | Up and downDifference in absorbance of layer | |
| Example 1 | 7d | 405 | 0.034 |
| Example 2 | 7d | 378 | 0.037 |
| Example 3 | 7d | 290 | 0.023 |
| Example 4 | 7d | 288 | 0.016 |
| Example 5 | 7d | 270 | 0.027 |
| Example 6 | 7d | 356 | 0.034 |
| Example 7 | 7d | 340 | 0.038 |
| Example 8 | 7d | 363 | 0.038 |
| Example 9 | 7d | 390 | 0.039 |
| Example 10 | 7d | 402 | 0.037 |
| Comparative example 1 | 7d | 411 | 0.044 |
| Comparative example 2 | 7d | 434 | 0.040 |
| Comparative example 3 | 7d | 396 | 0.042 |
| Comparative example 4 | 7d | 472 | 0.054 |
| Comparative example 5 | 7d | 439 | 0.049 |
| Comparative example 6 | 7d | 452 | 0.050 |
As can be seen from Table 2, the inks of examples 3 to 5 had better stability, and the particle diameter D99 value of the ink after 7D aging and the absorbance difference between the upper and lower layers of the ink were more stable than those of the other examples, indicating that the stability of the ink was better. The comparison result shows that the content of the dye is more beneficial to the improvement of the grinding efficiency of the color paste when being 20 percent, the dye is too high or too low to be beneficial to the improvement of the grinding efficiency, the stability of the product is better compared with that of the acrylic resin liquid, the addition amount of the surfactant is better between 5 and 8 percent, and the system is more easy to generate bubbles along with the increase of the addition amount, so that the grinding coating of the color paste and the stability of the ink are not beneficial.
Example 11
The embodiment provides a preparation method of high-stability thermal sublimation ink based on disperse black dye, which comprises the following steps:
(a) adding wetting agent, surfactant, dispersant and deionized water in formula amount into a container in sequence according to the component content in the embodiment 10, and carrying out shearing dispersion; continuously adding the dye with the formula amount into the container, and shearing and dispersing;
(b) grinding the product of the step (a) for 0.5 to 5 hours by sequentially using zirconia beads of 0.6 to 0.8mm, 0.25 to 0.35mm and 0.1 to 0.2mm respectively so that the particle size of the dye particles is D50 which is less than or equal to 70 nm;
(c) filtering the slurry obtained in the step (b) by using a three-stage online filter to obtain color paste;
(d) preparing the color paste, the flatting agent, the solvent and the water into the thermal sublimation ink according to the proportion, which comprises the following steps: 35-75% of color paste, 0.5-5% of flatting agent, 5-25% of solvent and 40-75% of deionized water.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The thermal sublimation ink based on the compound disperse black dye comprises, by taking the total mass of the thermal sublimation ink based on the compound disperse black dye as 100%, 35-75% of color paste, 0.5-5% of flatting agent, 5-25% of solvent and 40-75% of water; the color paste comprises the following raw materials in parts by weight: 15-30 parts of disperse black dye, 5-30 parts of dispersing agent, 5-10 parts of surfactant, 1-10 parts of wetting agent and 40-70 parts of water.
2. The thermal sublimation ink based on the built disperse black dye according to claim 1, wherein the dispersant is a commercially available solid acrylic resin or acrylic resin liquid.
3. The thermal sublimation ink based on the built and dispersed black dye according to claim 1, wherein the surfactant is one or a mixture of lignosulfonate, alkyl naphthalene sulfonate, sodium naphthalene sulfonate formaldehyde polycondensate and anionic sulfonate.
4. The thermal sublimation ink based on the built disperse black dye, according to claim 1, wherein the disperse black dye is a built disperse black dye of disperse brown 27, disperse blue 360 and disperse yellow 54.
5. The thermal sublimation ink based on the built disperse black dye according to claim 4, wherein the mass ratio of the disperse brown 27 to the disperse blue 360 to the disperse yellow 54 is 52:39: 9.
6. The thermal sublimation ink based on the built disperse black dye according to claim 1, wherein the solvent is a mixture of one or more selected from polyhydric alcohols;
preferably, the polyhydric alcohol includes diethylene glycol, ethylene glycol, 1, 3-propanediol, 1, 4-butanediol, 1, 6-hexanediol, glycerol, D-sorbitol, 1,2, 6-hexanetriol, and trimethylolpropane.
7. The sublimation thermal ink based on built black disperse dye according to claim 1, wherein the wetting agent is BYK346, BYK3455, BYK 3410; the leveling agent is TEGO FLOW 370.
8. A method for preparing a highly stable thermal sublimation ink based on disperse black dye according to any one of claims 1 to 7, the method comprising the steps of:
(a) shearing and dispersing a wetting agent, a surfactant, a dispersing agent and water; adding a disperse black dye, and carrying out shear dispersion;
(b) grinding the product obtained in the step (a) by using zirconia beads, and stopping grinding after the particle size is qualified;
(c) filtering the slurry obtained in the step (b) to obtain a finished product of color paste;
(d) and mixing the color paste with a flatting agent, a solvent and water to obtain the thermal sublimation ink.
9. The method for preparing highly stable sublimation ink containing dispersed black dye according to claim 8, wherein the step (b) is carried out by grinding using zirconia beads of 0.6-0.8mm, 0.25-0.35mm and 0.1-0.2mm in this order, and the particle size after grinding is D50 ≤ 70 nm.
10. The method for preparing high-stability disperse black dye-based sublimation ink according to claim 8, wherein the dye content of the sublimation ink in the step (d) is 5% -9%.
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Cited By (1)
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