Method for improving ink deposition uniformity of inkjet printing

An inkjet printing and uniformity technology, applied in printing, ink, household utensils, etc., can solve the problems that affect the uniformity of the final graphics, slow-drying ink can not meet the process requirements, etc., to shorten the printing time and reduce the overall level , to solve the effect of uneven deposition

Inactive Publication Date: 2019-01-04
SOUTH CHINA UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, in the actual process, the slow-drying ink cannot meet all the process requirements. For example, in some processes, in order to avoid the influence of the ink flow process on the shape of the final printed graphics, the ink is required to be quickly cured or semi-cured during deposition to fix its shape
In this case, the above problems will seriously affect the uniformity of the final graphics

Method used

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  • Method for improving ink deposition uniformity of inkjet printing
  • Method for improving ink deposition uniformity of inkjet printing

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Embodiment 1

[0015] 1. Drug and reagent preparation

[0016] Preparation of raw materials for solution preparation: zirconium oxychloride octahydrate, analytically pure, content ≥ 99.0%; polyvinylpyrrolidone, K30; ethylene glycol; ethylene glycol methyl ether.

[0017] 2. Substrate and container cleaning

[0018] Finger bottle cleaning: Unscrew the bottle cap of the finger bottle to be washed, sink it into a large beaker filled with isopropanol, and put the bottle cap together. The bottle is completely filled with isopropanol without air bubbles, and then Ultrasonic vibration for 10 to 30 minutes, and then change to deionized water and the same ultrasonic vibration for 10 to 30 minutes. When using tweezers to transfer the bottle, avoid contacting the inner wall of the bottle with the tweezers. After cleaning, put the bottle in the oven to dry.

[0019] Magnetic rotor cleaning: Put the magnetic rotor to be washed into a beaker containing isopropanol, tetrahydrofuran, alkaline washing sol...

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Abstract

The invention belongs to the field of printing electronics, relates to the inkjet printing preparation process of an oxide film, and particularly relates to a method for improving ink deposition uniformity of inkjet printing. The method comprises the following steps: a printer substrate is kept at 50-60 DEG C, the ink droplet speed is 10m / s, the nozzles are not heated, the ink droplet spacing is 30-40 mum, multi-nozzle inkjet printing is performed on the substrate, and the number of the nozzles is 3-4; annealing is performed for 1h after printing; the ink solvent used in inkjet printing is ethylene glycol and ethylene glycol methyl ether mixed in the volume ratio of 1 / 2-2 / 1, and the ink contains polyvinylpyrrolidone equivalent to 3-5% by mass of the solvent and zirconium oxychloride octahydrate with the concentration of 0.1-1.0 M. Compared with the conventional gel template method, the problem of non-uniform deposition of the non-Newtonian fluid ink in the quick drying printing processcan be solved through simple improvement of the printer parameters.

Description

technical field [0001] The invention belongs to the field of printed electronics, and relates to an inkjet printing preparation process of an oxide film, in particular to a method for improving the ink deposition uniformity of inkjet printing. Background technique [0002] Nowadays, some inkjet printing inks contain polymers. Most of these polymer-containing solutions are non-Newtonian fluids, and have certain viscoelasticity. When they are deformed by force, they have the property of storing energy. Long tail without breaking, the inkjet state is relatively unstable, and this instability will become more serious with time, which leads to the difference between the ink deposition state in the early stage of inkjet printing and the later stage, that is, the upper and lower parts of the entire graphic Ink distribution is uneven. In theory, this situation does not have much impact on slow-drying inks, because the ink does not solidify quickly after deposition, but can flow to ...

Claims

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Application Information

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IPC IPC(8): B41J2/01C09D11/033C09D11/03
CPCB41J2/01C09D11/03C09D11/033
Inventor 宁洪龙朱镇南姚日晖蔡炜魏靖林周尚雄袁炜健李志航史沐杨彭俊彪
Owner SOUTH CHINA UNIV OF TECH
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