Photocatalyst fluorescent ink and preparation method thereof

Abstract

The invention discloses photocatalyst fluorescent ink and a preparation method thereof, and relates to the technical field of ink. According to the invention, a self-made fluorescent agent is frozen into microspheres, and titanium dioxide is adsorbed on the surface of the self-made fluorescent agent by using plasma, electrostatic spraying and microwaves, so that the stability of the ink is improved; and then, through low-temperature plasma assisted radio frequency magnetron sputtering, cerium oxide is coordinated and chelated on the surfaces of the titanium dioxide microspheres, so that the visible light activity of titanium dioxide is improved, and ink can be catalytically degraded under visible light. The self-made fluorescent agent is prepared from veratone, pyrenecarboxaldehyde and boron trifluoride, so that the ink can display patterns only under infrared wavelength irradiation, is not easy to decompose by illumination under long-time infrared irradiation, and has better light stability. The photocatalyst fluorescent ink prepared by the invention has the effects of good confidentiality, light stability and degradability.

Description

technical field [0001] The invention relates to the technical field of ink, in particular to a photocatalyst fluorescent ink and a preparation method thereof. Background technique [0002] For a long time, the issue of information security has been very important to the country, enterprises and individuals, and the combination of paper and ink has been an important medium for us to transmit information since ancient times; although the current network technology is developing rapidly, many materials and information are transmitted through the network. However, on many occasions and in some special units, the important and even confidential documents kept are still paper-based printed matter or handwritten matter. [0003] How to protect the content of these paper-based confidential documents from being stolen has become an important issue. At present, the protection measures mainly adopt invisible ink and file shredding. Although the file shredding method is simple, it will...

AI Technical Summary

Problems solved by technology

At present, the protection measures mainly adopt invisible ink and file shredding. Although the file shredding method is simple, it will cause a lot of waste, increase the cost of the company, and cause certain harm to the environment; the invisible ink on the market is mainly heated, Color development under the stimulation of acid-base solution, etc., although it can achieve the effect of stealth and confidentiality, once stolen, it cannot disappear before copying and transmission. Therefore, the present invention uses photocatalyst technology to synthesize an ink that can decompose and fade with visible light. Used when writing confidential documents to minimize the possibility of information leakage

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