Ultraviolet-curable white character jet-ink and preparation method thereof

An ultraviolet light and white technology, which is applied in the chemical industry, can solve the problems of titanium dioxide, such as large specificity, poor dispersion, and high viscosity, and achieve the effects of scientific components, efficient preparation methods, and excellent comprehensive indicators

Inactive Publication Date: 2012-09-05
东莞上海大学纳米技术研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been patent reports on UV-cured white inkjet. WO0246323 relates to a UV-cured white character ink applied to PCB boards. The ink is composed of titanium dioxide, oligomers, active monomers, dispersants, photoinitiators, etc. The viscosity at 25°C is 40-200cps, and at 50-80°C it is 10-20cps. The main disadvantage of this ink is its high viscosity. Inkjet printing needs to be carried out at a higher temperature, and the requirements for equipment Relatively high, it is difficult to ensure the stability of ink ejection
An important problem of white ink is to solve its dispersibility, because the dispersibility of most white inks is not very good. For inkjet printing technology, poor dispersibility will lead to problems such as nozzle plugging
US7635504 relates to a UV-curable white ink, which contains two dispersants to solve the problem of di

Method used

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  • Ultraviolet-curable white character jet-ink and preparation method thereof
  • Ultraviolet-curable white character jet-ink and preparation method thereof
  • Ultraviolet-curable white character jet-ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A UV-curable white character inkjet, which is made of the following components by weight percentage:

[0045]

[0046]

[0047] Wherein, the oligomer is one of epoxy acrylate, polyester acrylate, polyether acrylate and polyurethane acrylate;

[0048] The reactive monomer is a mixture of monofunctional monomers, bifunctional monomers, trifunctional monomers or multifunctional monomers;

[0049] The titanium dioxide is surface-modified rutile titanium dioxide with a particle size of 100 nm to 500 nm, or one selected from silica, aluminum oxide, and zirconia with a particle size of 150 to 300 nm, coated and modified with organic matter.

[0050] The photoinitiator is selected from one of radical polymerization photoinitiators or cationic polymerization photoinitiators;

[0051] The dispersant is a wetting and dispersing agent for solvent-based systems;

[0052] The surface active agent is selected from one of fluorine surface active agents or organic silicon surface active agents.

[...

Embodiment 2

[0075] Embodiment 2: The UV-curable white character inkjet provided in this embodiment and the preparation method thereof, the basic components and steps are the same as those of Embodiment 1, and the difference lies in:

[0076]

[0077] Among them, the components are specifically selected from titanium dioxide, polyester acrylate, dispersant ANFCNA-4046, surfactant FC4430, white carbon black, and photoinitiator selected from free radical polymerization photoinitiators. The active monomers are as follows in weight percentage Mixture of monomers:

[0078]

[0079] The specific preparation method includes the following steps: (1) Preliminarily put the corresponding formula amount of dispersant and the corresponding formula amount of active monomer into the shaker, shake for 10 minutes to prepare a solution; (2) Add the corresponding formula amount to the solution The titanium dioxide is dispersed in a shaker for 30-60 minutes; (3) Transfer the above mixture to the grinder, start the...

Embodiment 3

[0080] Embodiment 3: The UV-cured white character inkjet provided in this embodiment and its preparation method have the same basic components and steps as Embodiments 1 and 2, and the difference lies in:

[0081]

[0082] The specific components are: titanium dioxide, polyester acrylate, epoxy acrylate, active monomer, cationic polymerization photoinitiator, dispersant ANFCNA-4046, surfactant DC-57, white carbon black. Among them, the titanium dioxide has a surface-modified rutile titanium dioxide with a particle size of 100 nm to 500 nm.

[0083] The reactive monomer is a mixture of the following monomers in weight percentage:

[0084]

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Abstract

The invention discloses an ultraviolet-curable white character jet-ink which is prepared from the following components: oligomers, active monomers, titanium pigment, a photoinitiator, a dispersing agent and a surfactant. The invention also discloses a method for preparing the white character jet-ink, which comprises the following steps of: (1) raw material preparation, (2) high-speed shocking dispersion, (3) high-speed grinding, and (4) filtering. The ultraviolet-curable white character jet-ink disclosed by the invention is small in particle size, low in viscosity, good in inkjet performance, capable of being cured rapidly under ultraviolet light, high in hardness of film, and good in adhesion. The preparation method provided by the invention is scientific and reasonable in components, efficient and stable. The jet-ink disclosed by the invention can be widely used for printing various graphics and characters, and is especially suitable to be applied to electronic circuit boards.

Description

Technical field [0001] The present invention relates to the technical field of chemical industry, in particular to a UV-curable white character inkjet and a preparation method thereof, in particular to a UV-curable inkjet printing on electronic circuit boards (PCB) with excellent comprehensive performance The composition and preparation method of white character ink. Background technique [0002] Printed circuit boards are a fast-growing high-tech industry today, and the rapid development of inkjet printing technology has injected new vitality into this industry and brought major changes to the electronics industry. Inkjet printing is a printing technology that does not require contact, pressure, and printing plates. You only need to input the information stored in the computer into the inkjet printer to print. It also has the common features of plateless digital printing and can realize variable data printing. Compared with traditional methods, inkjet technology will bring fas...

Claims

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Application Information

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IPC IPC(8): C09D11/10C09D11/30
Inventor 施利毅程银银黄雷张美红李婕
Owner 东莞上海大学纳米技术研究院
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