A kind of ink-jet printing ink of mixed solvent and preparation method thereof

A technology of inkjet printing and mixed solvents, applied in ink, household utensils, applications, etc., can solve the problems of difficult to guarantee uniformity, large restrictions, complicated process, etc., achieve excellent uniformity and improve the effect of inkjet state

Active Publication Date: 2021-02-19
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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  • A kind of ink-jet printing ink of mixed solvent and preparation method thereof
  • A kind of ink-jet printing ink of mixed solvent and preparation method thereof

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 printed electronics, and discloses a solvent-mixed ink-jet printing ink and a preparation method thereof. The ink-jet printing ink is composed of a good solvent for the polymer, a non-good solvent for the polymer, a polymer and zirconium oxychloride octahydrate; the polymer is polyacrylamide or polyvinyl alcohol. The preparation method is as follows: add the polymer into the good solvent of the polymer, stir to make it fully dissolved, then add the non-good solvent of the polymer, stir and mix evenly, then add zirconium oxychloride octahydrate and stir to dissolve, and obtain the described Inkjet printing ink. The present invention improves the inkjet state of the polymer-containing ink to a certain extent by selecting a mixed solvent system of a good solvent for the polymer and a non-good solvent for the polymer, and does not have much influence on the functionality of the ink. The resulting inkjet inks also exhibit excellent uniformity in high-volume applications.

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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Patent Type & Authority Patents(China)
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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