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Printing ink for inkjet printing, and preparation method thereof

A printing ink and inkjet printing technology, which is applied in the field of printing ink, can solve the problem that the surface tension of printing ink cannot meet the requirements, and achieve the effect of meeting the film-forming requirements

Inactive Publication Date: 2018-10-16
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a printing ink for inkjet printing and a preparation method thereof, aiming at solving the problem that the surface tension of the printing ink for existing inkjet printing cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The mixed solvent is composed of 1-methylnaphthalene and 3-(trimethoxysilyl)propyl-2-methyl-2-acrylate, and all solvents are purified by corresponding methods to remove water and oxygen to a purity greater than 99.9%.

[0058] Add the following components to about 500mL single-necked flask, under the condition of stirring, the addition order is: 15wt% oleylamine stabilized red CdSe / ZnS quantum dots, 67wt% 1-methylnaphthalene solvent, 18wt% 3-( Trimethoxysilyl)propyl-2-methyl-2-acrylate solvent, and the mixture was stirred for 30 minutes to obtain a quantum dot ink.

[0059] Inject the quantum dot ink into the inkjet printer ink cartridge, adjust the corresponding parameters, and print a red quantum dot layer of 20×30um with a resolution of 200×200ppi.

[0060] Place the printed substrate on a hot stage and heat it to 180°C, nitrogen flow vacuum 1×10 -6 Volatilize and dry under Torr for 30 minutes to obtain a monochromatic quantum dot light-emitting layer.

Embodiment 2

[0062] The mixed solvent is composed of o-dimethoxybenzene and dimethyloctylchlorosilane, and all solvents are purified by corresponding methods to remove water and oxygen to a purity greater than 99.9%.

[0063] Add the following components to an approximately 500 mL high-density polyethylene bottle with stirring in the following order: 10 wt% oleylamine-stabilized green CdZnSe / CdZnS, 85 wt% o-dimethoxybenzene, 5 wt% dimethyl octylchlorosilane solvent, the mixture was stirred for 30 minutes to obtain quantum dot ink.

[0064] Print a green quantum dot layer of 20×30um with a resolution of 200×200ppi by an inkjet printer.

[0065] Heat to 100°C on a hot plate, vacuum 1×10 -6 Volatilize and dry under Torr for 30 minutes to obtain a monochromatic quantum dot light-emitting layer.

Embodiment 3

[0067] The mixed solvent is composed of dodecane, decahydronaphthalene, acetophenone and 3-glycidyl propyl trimethoxysilane, and all solvents are purified by corresponding methods to remove water and oxygen to a purity greater than 99.9%.

[0068] Add the following components to an approximately 500 mL HDPE bottle with stirring in the following order: 29.95 wt% dodecane, 40 wt% decahydronaphthalene, 10 wt% oleylamine-stabilized blue CdS / CdZnS , (green CdZnSe / CdZnS, red CdSe / ZnS quantum dots), 20wt% acetophenone, 0.05wt% 3-glycidylpropyltrimethoxysilane, stirred the mixture for 30 minutes to obtain quantum dot ink.

[0069] Through an inkjet printer, it is printed into a blue, green and red parallel quantum dot layer of 20×30um and a resolution of 200×200ppi.

[0070] Heat to 160°C on a hot plate, vacuum 1×10 -6 Volatilize and dry under Torr for 30 minutes to obtain a three-color quantum dot light-emitting layer.

[0071] In summary, the present invention provides a printing ...

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PUM

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Abstract

The invention discloses a printing ink for inkjet printing, and a preparation method thereof, wherein the components comprise, by weight, 0.01-20.0% of an inorganic nanometer material, and 80.00-99.99% of a solvent, wherein the solvent contains at least an alkane and / or aromatic hydrocarbon organic solvent and at least a silane organic solvent, and the silane organic solvent accounts for 0.01-99.99% of the total weight of the solvent. According to the present invention, the prepared printing ink has advantages of appropriate surface tension, good dispersing property, uniform dispersion and stable storage, and can meet the film forming requirements of printers; and through the inkjet printing method, the printing ink can achieve characteristics of stable ink discharge, stable spreading, uniform drying and uniform film formation, and can deposit to form the inorganic nanometer material luminescent layer having a pixel lattice.

Description

technical field [0001] The invention relates to the technical field of printing ink, in particular to a printing ink for inkjet printing and a preparation method thereof. Background technique [0002] In recent years, quantum dot (QD) luminescent materials have played a great role in LED lighting, liquid crystal display and other fields. Quantum dots replace traditional phosphors, effectively improving the color gamut of LED and liquid crystal display. Recently, quantum dot light-emitting diodes (QLEDs) with luminescent materials as the light-emitting layer have broad application prospects in solid-state lighting, flat panel display and other fields, and have attracted extensive attention from academia and industry. [0003] The solution processing characteristics of quantum dots make the quantum dot light-emitting layer can be prepared by various methods such as spin coating, scraping coating, spraying, and inkjet printing. Compared with the previous methods, the inkjet pr...

Claims

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Application Information

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IPC IPC(8): C09D11/30C09D11/36
CPCC09D11/30C09D11/36
Inventor 李雪
Owner TCL CORPORATION
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