Photochromic fluorescent oily ink and preparation method thereof

A photochromic and fluorescent technology, applied in the field of printing, can solve the problems of eye hazard and poor concealment, and achieve the effect of broadening the scope of application

Active Publication Date: 2021-03-09
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultraviolet anti-counterfeiting materials emit visible light under the irradiation of ultraviolet light (200-400nm), long-term exposure to ultraviolet light will cause certain harm to human skin and eyes; while visible light luminescent anti-counterfeiting (400-800nm) is easier to identify authenticity and concealment. Difference

Method used

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  • Photochromic fluorescent oily ink and preparation method thereof
  • Photochromic fluorescent oily ink and preparation method thereof
  • Photochromic fluorescent oily ink and preparation method thereof

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preparation example Construction

[0031] Accordingly, the present invention provides a method of preparing a fluorescent oily ink based on a lanthanide-based organic frame / screw gallic compound, which includes the following steps:

[0032] (1) Preparation of lanthanide metal organic frame

[0033] 0.1mmol lanthanide compound (specifically LNCL) 3 · 6h 2 O, ln = eu3+ Or TB 3+ ), 0.1mmol ion benzoic acid (H 3 BTC), 10-15 mL n, N-dimethylformamide and 5-10 ml of deionized water were added to the beaker evenly stir. The mixed mixture of the above-mentioned uniform mixing was transferred to the reaction kettle with polytetrafluoroethylene as the liner, and heated from 80-120 ° C in the muffle, which was good, which was good, facilitating the lanthanoid metal organic frame shape. The formation is formed, and it is also convenient to adjust the cooling rate. After the end, the reaction kettle was slowly cooled to room temperature at a temperature of 5-10 ° C / h. After the precipitation was separated by filtration, N, ...

Embodiment 1

[0042] The preparation method of photolored fluorescent oily ink according to the present invention includes the following steps:

[0043] (1) Preparation of lanthanide metal organic frame:

[0044] LNCL 3 · 6h 2 O (0.1mmol ln 3+ = EU 3+ ), Benzophenic acid (H 3 BTC 0.1 mmol), N, N-dimethylformamide (10 mL) and deionized water (5 mL) were added to the beaker evenly stirred for 1 h. The above-mentioned uniform mixed mixture was transferred to the autoclave of the polytetrafluoroethylene liner, and heated at 80 ° C for 12 hours. The reaction vessel was slowly cooled to room temperature at a temperature of 5 ° C / h. The reaction solution produced above was washed with N, N-dimethylformamide and deionized water after filtration, and dried at 50 ° C for 12 hours to obtain a white needle crystal, stored in a dryer.

[0045] (2) Lanthanide metal organic frame adsorbent copiolor compound:

[0046] The above-mentioned lanthanide organic frame (EU-MOFS) 60 mg was activated by immersing in ...

Embodiment 2

[0053] The preparation method of photolored fluorescent oily ink according to the present invention includes the following steps:

[0054] (1) Preparation of lanthanide metal organic frame:

[0055] LNCL 3 · 6h 2 O (0.1mmol ln 3+ = TB 3+ ), Benzophenic acid (H 3 BTC 0.1 mmol), N, N-dimethylformamide (12 mL) and deionized water (8 ml) were added to the beaker evenly stirred for 1 h. The above-mentioned uniformly mixed sample was transferred to a polytereonvonoethylene liner autoclave, and heated at 100 ° C for 20 hours. The reaction vessel was slowly cooled to room temperature at a temperature of 7 ° C / h. The reaction solution produced above was washed with N, N-dimethylformamide and deionized water after filtration, and dried under vacuum for 12 hours at 50 ° C for 12 hours to give a white needle crystal. The collected samples are stored in a desiccator.

[0056] (2) Lanthanide metal organic frame adsorbent copiolor compound:

[0057] The lanthanide organic frame (TB-MOFS) is ac...

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Abstract

The invention provides photochromic fluorescent oily ink and a preparation method thereof. The method comprises the following steps: step 1, dissolving lanthanide series metal chloride and trimesic acid in a mixed solution of N,N-dimethyl formamide and deionized water, carrying out hydrothermal treatment for 12-24 h at the temperature of 80-120 DEG C, then cooling to the room temperature, carryingout separation and precipitation, and drying, thereby obtaining a lanthanide metal organic framework; step 2, activating the lanthanide metal organic framework in methanol, and grinding the activatedlanthanide metal organic framework and 1-(2-hydroxyethyl)-3,3-dimethyl indole-6-nitrobenzospiropyran in a mass ratio of 2: 1 in a nitrogen atmosphere for 30-60 minutes to obtain a compound; and step3, adding the compound and a sodium dodecyl sulfate solution with the mass fraction of 10%-12% into the PU touch matt varnish, uniformly mixing to obtain a mixed system, then adding absolute ethyl alcohol into the mixed system, and uniformly mixing to obtain the photochromic fluorescent oily ink.

Description

Technical field [0001] The present invention belongs to the field of printing technology, and is specifically a photolored fluorescent oily ink and a preparation method thereof. Background technique [0002] The photoelectric discoloration material can be defined as a class of compounds which reversibly alter the color under light or electromagnetic radiation. Among the numerous photoelectric compounds, the copioli derivative is a primary photolored molecule. The photoprosive principle of the copiolor compound is based on the form of a colorless closure cylinder (indicating such a form) and the high color mercury cycling form (indicating this form of this form), such as 1- (2-hydroxyethyl) 3,3-dimethylindole-6 nitrobenzene, such as figure 1 . Under UV irradiation in stable colorless SP, C spiro The -o key is broken by a peri-ring reaction, and then the molecule is in the form of a color plane MC. Photocchaborament has been widely studied, and photocharmonic materials have receiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/50C09D11/102C09D11/03C09D11/033C08G83/00C09K9/02
CPCC09D11/50C09D11/102C09D11/03C09D11/033C08G83/008C09K9/02C09K2211/182
Inventor 张召李新平康榭娜
Owner SHAANXI UNIV OF SCI & TECH
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