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A double anti-counterfeit material, anti-counterfeit label, preparation method and anti-counterfeit detection method

An anti-counterfeit label, double technology, applied in the direction of identification devices, instruments, seals, etc., to achieve the effect of shape memory anti-counterfeiting function, easy recycling, excellent mechanical properties

Active Publication Date: 2019-08-13
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the rapid development of science and technology, the high profits brought by counterfeit and shoddy products make the counterfeit technology more able to confuse the real ones, which brings great challenges to anti-counterfeiting materials.

Method used

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  • A double anti-counterfeit material, anti-counterfeit label, preparation method and anti-counterfeit detection method
  • A double anti-counterfeit material, anti-counterfeit label, preparation method and anti-counterfeit detection method
  • A double anti-counterfeit material, anti-counterfeit label, preparation method and anti-counterfeit detection method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Take 9.5 g of dimethyl sebacate and 3.7 g of 1,3 diamino-2-propanol and mix them uniformly at 70°C, add 250 μL of sodium methoxide solution (concentration: 5 mol / L), seal and heat at 70°C for 12 hours. Connect the water pump to evacuate and heat to 100°C for 2 hours until there is no liquid in the reaction system. Replace the water pump with an oil pump to evacuate and heat to 150°C for 1 hour. Finally, the oil pump is vacuumed and heated to 220°C for 1 hour to obtain a double anti-counterfeiting material.

[0036] The glass transition temperature of the double anti-counterfeiting material is 50°C, and the degradation temperature is 280°C; the breaking strength of the material is 70MPa, the elongation at break is 8%, and the toughness after moisture absorption is 45MJ / m 3 .

[0037] Using a tablet press, the tablet press mold is designed with a variety of shapes or characters, and a certain distance is set between the shapes or characters (the distance is set according ...

example 2

[0039] Take 13.5 g of dimethyl malonate and 9.3 g of 1,3 diamino-2-propanol and mix them uniformly at 70°C, add 650 μL of sodium methoxide solution (concentration: 5 mol / L), seal and heat at 70°C for 10 hours. Connect the water pump to evacuate and heat to 100°C for 1 hour until there is no liquid in the reaction system. Replace the water pump with an oil pump to evacuate and heat to 150°C for 0.8 hours. Finally, the oil pump vacuumizes and heats to 220°C for 1 hour to prepare a double anti-counterfeiting material .

[0040] The glass transition temperature of the double anti-counterfeiting material is 120°C, and the degradation temperature is 300°C; the breaking strength of the material is 110MPa, the elongation at break is 5%, and the toughness after moisture absorption is 52MJ / m 3 .

[0041]Using a tablet press, the tablet press mold is designed with a variety of shapes or characters, and a certain distance is set between the shapes or characters (the distance is set accor...

example 3

[0043] Take 5.9 g of dimethyl terephthalate and 2.8 g of 1,3 diamino-2-propanol and mix them uniformly at 70°C, add 190 μL of sodium methoxide solution (concentration: 5 mol / L), seal and heat at 70°C for 10 hours. Connect the water pump to evacuate and heat to 100°C for 1.5h until there is no liquid in the reaction system. Replace the water pump with an oil pump to evacuate and heat to 150°C for 0.5h. Finally, the oil pump is evacuated and heated to 220°C for 0.8h to prepare a double Anti-counterfeiting material.

[0044] The glass transition temperature of the double anti-counterfeiting material is 90°C, and the degradation temperature is 290°C; the breaking strength of the material is 100MPa, the elongation at break is 7%, and the toughness after moisture absorption is 43MJ / m 3 .

[0045] Using a tablet press, the tablet press mold is designed with a variety of shapes or characters, and a certain distance is set between the shapes or characters (the distance is set accordin...

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Abstract

The invention relates to a dual anti-counterfeit material, an anti-counterfeit label and a preparation method and an anti-counterfeit detection method. The material has a fluorescence effect under ultraviolet irradiation, and also has a shape memory effect under the condition of 50-120 DEG C. The structural formula is as shown in the description. In the formula, R is any one or a combination of several of hydrocarbyl, alkyl, naphthenic base and aryl; R1 is any one or a combination of several of alkyl, alkenyl and aryl; n is more than or equal to 5 and less than or equal to 1000; n is an integer. The anti-counterfeit label is prepared by the following steps: pressing the material into a plate of which the surface is provided with patterns or characters of set bulges by a tablet press underthe conditions of vacuum supply and 180-240 DEG C, rolling the plate in an environment of which the temperature is slightly higher than a glass-transition temperature of the material, and forming theanti-counterfeit label which has flat surface and has the thickness of 0.1-1.5mm after rolling. The dual anti-counterfeit material and the anti-counterfeit label disclosed by the invention have dual anti-counterfeit effects of fluorescence anti-counterfeit and shape memory anti-counterfeit, and the anti-counterfeit effect is excellent. In addition, the preparation method and detection method are simple.

Description

technical field [0001] The invention belongs to the technical field of anti-counterfeiting materials, and in particular relates to a double anti-counterfeiting material, an anti-counterfeiting label, a preparation method and an anti-counterfeiting detection method. Background technique [0002] With the continuous progress of society and the development of industry and agriculture, a variety of commodities of different grades not only promote the rapid development of the commodity economy, but also meet the needs of people's continuously improving material living standards. However, nasty fakes have also entered the circulation market in a mixed manner. Counterfeit coins, counterfeit notes, counterfeit products under the cover of counterfeit trademarks and counterfeit certificates often make people deceived and suffer losses. Anti-counterfeiting materials have been widely used in certificates, currency, labels and important documents. The essence of anti-counterfeiting mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/26C08G69/28G09F3/02
CPCC08G69/26C08G69/28G09F3/02
Inventor 汪钟凯周江骏胡志国
Owner ANHUI AGRICULTURAL UNIVERSITY
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