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Ink-jet printing ink prepared from mixed solvents and preparation method of ink-jet printing ink

An inkjet printing, mixed solvent technology, used in inks, household appliances, applications, etc., can solve the problems of difficult to guarantee uniformity, large restrictions, complicated processes, etc., to achieve excellent uniformity and improve the effect of inkjet state.

Active Publication Date: 2018-04-06
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Adjusting the concentration and molecular weight of the polymer can improve the inkjet state to a certain extent, but in many cases, the function of the ink needs to be guaranteed by a certain polymer concentration and molecular weight. Therefore, although this method is simple, it has great limitations.
Although it is effective to modify the surface of the polymer, inkjet can be used normally under the condition of high polymer concentration, but the process is more complicated, and the uniformity in large-scale application is difficult to guarantee

Method used

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  • Ink-jet printing ink prepared from mixed solvents and preparation method of ink-jet printing ink
  • Ink-jet printing ink prepared from mixed solvents and preparation method of ink-jet printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add polyacrylamide (weight-average molecular weight: 40,000) to ethylene glycol, stir at 45°C for more than 3 hours to fully dissolve, then add ethylene glycol methyl ether equal to the volume of ethylene glycol, and stir until the solution is clear, where The amount of polyacrylamide added is 1% of the total mass of ethylene glycol and ethylene glycol methyl ether; finally, zirconium oxychloride octahydrate with a molar concentration of 0.5M is added, magnetically stirred to dissolve it, and the mixture is obtained after aging for 24 hours. Solvent based inkjet printing inks.

[0024] In addition, an inkjet printing ink using pure ethylene glycol as a solvent was prepared as a control. The type, mass fraction and concentration of zirconium oxychloride octahydrate in the control group were the same as those of the inkjet printing ink of the above-mentioned mixed solvent.

[0025] Observation and comparison of inkjet state of gained inkjet printing ink:

[0026] Fill t...

Embodiment 2

[0031] Add polyvinyl alcohol (weight average molecular weight: 40,000) into deionized water, stir at 45°C for more than 3 hours to fully dissolve, then add ethylene glycol equal in volume to deionized water, and stir until the solution is clear, in which polyvinyl alcohol The addition amount of ethylene glycol is 1% of the total mass of water and ethylene glycol; finally, zirconium oxychloride octahydrate with a molar concentration of 0.5M is added, magnetically stirred to dissolve it, and the inkjet printing ink of the mixed solvent is obtained after aging for 24 hours .

[0032] In addition, an inkjet printing ink with pure deionized water as solvent was prepared as a control. The type, mass fraction and concentration of zirconium oxychloride octahydrate in the control group were the same as those of the inkjet printing ink of the above-mentioned mixed solvent.

[0033] Observation and comparison of inkjet state of gained inkjet printing ink:

[0034] Fill the prepared ink...

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Abstract

The invention belongs to the field of printing electronics, and discloses ink-jet printing ink prepared from mixed solvents and a preparation method of the ink-jet printing ink. The ink-jet printing ink is composed of the good solvent of a polymer, the bad solvent of the polymer, the polymer and zirconium oxychloride octahydrate, wherein the polymer is polyacrylamide or polyvinyl alcohol. The preparation method comprises the steps that the polymer is added into the good solvent of the polymer and stirred, so that the polymer is sufficiently dissolved, then the bad solvent of the polymer is added for stirring and uniform mixing, then the zirconium oxychloride octahydrate is added for stirring and dissolving, and the ink-jet printing ink is obtained after ageing. In the ink-jet printing inkand the preparation method, a mixed solvent system containing the good solvent of the polymer and the bad solvent of the polymer is selected, the ink-jet state of the ink containing the polymer is improved to a certain extent, the functionality of the ink is little affected, and the obtained ink-jet printing ink has an excellent uniformity even in high-dosage application.

Description

technical field [0001] The invention belongs to the field of printed electronics, and in particular relates to a solvent-mixed ink-jet printing ink and a preparation method thereof. Background technique [0002] Some inkjet printing inks today contain polymers, some use polymers as target products, and others use polymers as functional additives. Most of the polymer-containing solutions are non-Newtonian fluids, and have a certain degree of viscoelasticity. When they are deformed by force, they have the property of storing energy. When they are sprayed out from the nozzle, they will produce a long tail without breaking, thus producing many satellites. point, even the ink that has been squeezed out will be sucked back into the chamber. The viscoelasticity of polymer is related to its molecular weight, concentration, molecular chain structure, group and its interaction with solvent. At present, methods such as adjusting the concentration and molecular weight are used to impr...

Claims

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Application Information

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IPC IPC(8): C09D11/36C09D11/38
CPCC09D11/36C09D11/38
Inventor 宁洪龙朱镇南姚日晖蔡炜魏靖林陶瑞强陈建秋周尚雄邓宇熹彭俊彪
Owner SOUTH CHINA UNIV OF TECH
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