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Aqueous rare-earth coordination compound composite microsphere fluorescence ink and preparation process thereof

A technology of rare earth complexes and composite microspheres, used in the preparation of microspheres, inks, microcapsule preparations, etc., can solve the problems of the dispersion stability of toxic inks, narrow luminescence spectrum, etc., and achieve bright colors, high color purity, and use. long life effect

Inactive Publication Date: 2016-12-21
GUANGDONG ZHUANGLI COLOR PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a water-based rare earth complex composite microsphere fluorescent ink, which has a narrow luminous spectrum, high color purity, good light and heat stability, and is environmentally friendly; it also provides A preparation process for making the aforementioned ink. The process uses coating technology to coat rare earth complexes to prepare rare earth complex composite microspheres, which are then applied to water-based inks. The prepared inks make up for organic fluorescent formulations. Ink fluorescent color has defects such as low purity, toxicity, and poor ink dispersion stability, while absorbing the advantages of water-based inks, which are more environmentally friendly than solvent-based inks

Method used

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  • Aqueous rare-earth coordination compound composite microsphere fluorescence ink and preparation process thereof
  • Aqueous rare-earth coordination compound composite microsphere fluorescence ink and preparation process thereof
  • Aqueous rare-earth coordination compound composite microsphere fluorescence ink and preparation process thereof

Examples

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Effect test

specific Embodiment 1

[0065] 1mol Eu 2 o 3 Add it into 3L of dilute hydrochloric acid, the concentration of dilute hydrochloric acid is 2mol / L, then fully stir until it becomes a transparent liquid, and use 28% ammonia water to adjust the pH value to 6.5-7 to obtain EuCl 3 Aqueous solution; dissolve 3mol of dibenzoylmethane in 1L of absolute ethanol, add 1mol of 1,10-phenanthroline into 2L of absolute ethanol, fully stir until clear, and obtain their ethanol solutions respectively; in EuCl 3 The solution is added to the prepared dibenzoylmethane ethanol solution, and the pH value is adjusted to 6-7 while stirring; then the prepared 1,10-phenanthroline ethanol solution is added, fully stirred, and the obtained precipitate is filtered. Then wash 3 to 4 times, and dry at room temperature under air to obtain Eu(DBM) 3 Phen. Eu(DBM) obtained above 3 Phen was dissolved in 2L of acetone solution, then 2L of absolute ethanol and 3mol of deionized water were added, and the pH was adjusted to 7-8 with am...

specific Embodiment 2

[0067] 1mol Eu 2 o 3 Add it into 3L of dilute hydrochloric acid, the concentration of dilute hydrochloric acid is 2mol / L, then fully stir until it becomes a transparent liquid, and use 28% ammonia water to adjust the pH value to 6.5-7 to obtain EuCl 3 Aqueous solution: Dissolve 3mol of dibenzoylmethane in 2L of absolute ethanol, add 1mol of 1,10-phenanthroline into 3L of absolute ethanol, stir well until it becomes clear, and obtain its ethanol solution respectively; add the prepared solution to the EuCl3 solution Dibenzoylmethane ethanol solution, adjust the pH value to 6-7 while stirring; then add the prepared 1,10-phenanthroline ethanol solution, stir well, filter the obtained precipitate, and then carry out 3-4 washed once, and dried at room temperature under air to obtain Eu(DBM) 3 Phen. Eu(DBM) obtained above 3 Phen was dissolved in 4L of acetone solution, then 2L of absolute ethanol and 4mol of deionized water were added, and the pH was adjusted to 7-8 with ammonia ...

specific Embodiment 3

[0069] 1mol Eu 2 o 3 Add it into 3L of dilute hydrochloric acid, the concentration of dilute hydrochloric acid is 2mol / L, then fully stir until it becomes a transparent liquid, and use 28% ammonia water to adjust the pH value to 6.5-7 to obtain EuCl 3 Aqueous solution; Dissolve 3mol of dibenzoylmethane in 1L of absolute ethanol, add 1mol of 1,10-phenanthroline into 3L of absolute ethanol, fully stir until clear, and obtain their ethanol solutions respectively; in EuCl 3 The solution is added to the prepared dibenzoylmethane ethanol solution, and the pH value is adjusted to 6-7 while stirring; then the prepared 1,10-phenanthroline ethanol solution is added, fully stirred, and the obtained precipitate is filtered. Then wash 3 to 4 times, and dry at room temperature under air to obtain Eu(DBM) 3 Phen. Eu(DBM) obtained above 3 Phen was dissolved in 3L of acetone solution, then 2L of absolute ethanol and 3mol of deionized water were added, and the pH was adjusted to 7-8 with am...

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Abstract

The invention discloses an aqueous rare-earth coordination compound composite microsphere fluorescence ink, which is prepared from the following raw materials by weight: 5-15 parts of rare-earth coordination compound composite microspheres, 35-60 parts of an acrylic resin aqueous solution, 0.1-0.5 part of a coupling agent, 0.8-3 parts of a dispersant, 0.1-1 part of a defoaming agent, 10-35 parts of deionized water, 1-5 parts of a cosolvent, 1-5 parts of a film forming auxiliary agent, 1-3 parts of a thickening agent, and 0-30 parts of a filler. The process steps comprise: preparing a mixture A, preparing powder, carrying out mixing grinding, and carrying out a filtration stirring treatment. According to the present invention, the ink has characteristics of narrow light emitting spectrum, high color purity, good photothermal stability and green environmental protection; and the rare-earth coordination compound composite microsphere prepared through the cladding technology is used for the aqueous ink, such that the defects of low fluorescent color purity, toxicity, poor ink dispersion stability and the like of the organic fluorescent agent type ink are overcome, the advantages of the aqueous ink are absorbed, and the obtained aqueous rare-earth coordination compound composite microsphere fluorescence ink is more environmentally friendly compared to the solvent type ink.

Description

technical field [0001] The invention relates to the technical field of printing inks, in particular to a water-based rare earth complex composite microsphere fluorescent ink and a preparation process thereof. Background technique [0002] Fluorescent ink (fluorescent ink) is an ink made of fluorescent pigments, which has the property of converting short-wave ultraviolet light into longer visible light and reflecting more dazzling colors. It is one of the inks that are widely used in ticket printing. Its main The ingredients are fluorescent pigments. Fluorescent pigments are functional luminescent pigments. The difference from ordinary pigments is that when external light (including ultraviolet light) is irradiated, it can absorb a certain form of energy, and excite photons to release the absorbed energy in the form of low visible light, thus producing different colors. Hue fluorescence phenomenon. Different colors of light combine to form extremely bright colors, and when ...

Claims

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Application Information

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IPC IPC(8): C09D11/50C09D11/107C09D11/037B01J13/02
Inventor 段华伟曾繁鑫汤树海郭清霞曾丽丽
Owner GUANGDONG ZHUANGLI COLOR PRINTING
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