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A kind of preparation method of rare earth fluorescent logo anti-counterfeiting ink

An anti-counterfeiting ink and rare earth fluorescence technology, applied in the field of ink printing, can solve the problems of no industrial practicability, too simple anti-counterfeiting measures, high production cost, etc., and achieve a product with good quality stability, strong environmental protection and narrow emission spectrum. Effect

Inactive Publication Date: 2016-05-11
ZHEJIANG GREAT SHENGDA PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of these new inventions and new technologies have anti-counterfeiting measures that are too simple and featureless, some are expensive to produce, and some are difficult to carry out industrial mass production, so they are not industrially applicable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: a kind of preparation method of rare earth fluorescent LOGO anti-counterfeiting ink, carry out according to the following steps:

[0025] (1), EUCL 3 Preparation of:

[0026] will EU 2 o 3 Add it to dilute hydrochloric acid, the concentration of dilute hydrochloric acid is 2.0mol / L, and there is 350g of EU in every 2L of dilute hydrochloric acid 2 o 3 , and then stirred, the solution changed from turbid to transparent liquid after stirring, adding a weak base to adjust the pH value to 6.5, and obtained EUCL 3 aqueous solution;

[0027] (2), Eu(BA)(TTA) 2 Preparation of Phen Quaternary Complexes:

[0028] will produce EuCl 3 The aqueous solution and TTA are mixed according to the ratio of substances of 1:2, then Phen and BA are added dropwise to the mixture, filtered with 30um medium-speed industrial filter paper, washed with 25°C warm water after filtration, and the industrial filter paper The solid substance on the surface was dried at a constant...

Embodiment 2

[0035] Embodiment 2: a kind of preparation method of rare earth fluorescent LOGO anti-counterfeit ink, carry out according to the following steps:

[0036] (1), EUCL3 Preparation of:

[0037] will EU 2 o 3 Add it to dilute hydrochloric acid, the concentration of dilute hydrochloric acid is 2.5mol / L, and there is 350g of EU in every 2.5L of dilute hydrochloric acid 2 o 3 , and then stirred, the solution changed from turbid to transparent liquid after stirring, adding a weak base to adjust the pH value to 6.8, and obtained EUCL 3 aqueous solution;

[0038] (2), Eu(BA)(TTA) 2 Preparation of Phen Quaternary Complexes:

[0039] will produce EuCl 3 The aqueous solution and TTA are mixed according to the ratio of substances 1:2, then Phen and BA are added dropwise to the mixture, filtered with 40um medium-speed industrial filter paper, washed with 30°C warm water after filtration, and the industrial filter paper The solid substance on the surface was dried at a constant tempe...

Embodiment 3

[0046] Embodiment 3: a kind of preparation method of rare earth fluorescent LOGO anti-counterfeiting ink, carry out according to the following steps:

[0047] (1), EUCL 3 Preparation of:

[0048] will EU 2 o 3 Add it to dilute hydrochloric acid, the concentration of dilute hydrochloric acid is 3.0mol / L, and there is 350g of EU in every 3L of dilute hydrochloric acid 2 o 3 , and then stirred, the solution changed from turbid to transparent liquid after stirring, adding a weak base to adjust the pH value to 7, and obtained EUCL 3 aqueous solution;

[0049] (2), Eu(BA)(TTA) 2 Preparation of Phen Quaternary Complexes:

[0050] will produce EuCl 3 The aqueous solution and TTA are mixed according to the ratio of substances of 1:2, then Phen and BA are added dropwise to the mixture, filtered with 50um medium-speed industrial filter paper, and washed with warm water at 25°C to 35°C after filtration. The solid matter on the industrial filter paper was dried at a constant tempe...

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PUM

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Abstract

The invention relates to anti-forgery ink, particularly relates to a preparation method of rare earth florescent LOGO anti-forgery ink, and belongs to the technical field of ink printing. The preparation method comprises the steps of EUCL3 preparation, Eu(BA)(TTA)2Phen quaternary complex preparation and synthesis treatment. The preparation method of the rare earth florescent LOGO anti-forgery ink has the advantages of narrow emission spectrum, high color purity, good monochromaticity, high luminous intensity, high fluorescence efficiency, good product quality stability and good environmental protection property.

Description

technical field [0001] The invention relates to an anti-counterfeit ink, in particular to a preparation method of a rare earth fluorescent LOGO anti-counterfeit ink, and belongs to the technical field of ink printing. Background technique [0002] Corrugated packaging cartons have mechanical properties such as light weight, compression resistance, puncture resistance, tear resistance and cushioning, shock resistance, and easy processing and molding. At the same time, they have good adaptability to decoration and printing, can be recycled, and have no pollution to the environment. Economical, lightweight and easy to stack. Its scope of use is getting wider and wider, and its development speed is getting faster and faster. It is the most widely used packaging container in modern packaging, and it is also one of the most important packaging forms used by countries all over the world today. [0003] At present, China's packaging industry plays an important role in the national ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/03C09D11/105C09D11/50
Inventor 胡开堂黄煜琪胡力萌王召霞
Owner ZHEJIANG GREAT SHENGDA PACKING CO LTD