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Two-dimensional code waterborne stereoscopic anti-counterfeit color-changing ink

A color-changing ink and two-dimensional code technology, applied in the field of two-dimensional codes, can solve the problems of easy copying and counterfeiting, information leakage, economic loss, etc., and achieve the effect of strong adhesion, good hand feeling, and not easy to fall off

Active Publication Date: 2018-05-04
永发印务(东莞)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as a printed matter, the QR code itself is very easy to be copied and imitated, resulting in the proliferation of anti-counterfeiting and counterfeit products. In addition, due to the uncertainty of the link objects of the QR code, it is easy to be used by criminals to cause information leakage, economic losses, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a water-based three-dimensional anti-counterfeiting color-changing ink for a two-dimensional code. In terms of mass percentage, the ink includes the following components:

[0041] 39% aqueous acrylic resin solution;

[0042] Acrylic emulsion 17%;

[0043] 10% aqueous polyurethane resin solution;

[0044] Thermochromic powder 17%;

[0045] Blowing agent 15%;

[0046] Defoamer 1%;

[0047] Wetting agent 1%.

[0048] The thermochromic powder is a reversible thermochromic powder that changes from colorless to colored at 65°C, and its specific component is silver iodide with a particle size of 7-10 μm; the foaming agent is a thermally expandable microcapsule, which includes The capsule wall and capsule core, the capsule wall is an acrylamide-acrylonitrile copolymer, the capsule core is butane, and the particle size is 8-12 μm.

[0049] Among them, the aqueous acrylic resin solution is prepared by solid acrylic resin, pure water, and ammonia in a mass ratio of 39:...

Embodiment 2

[0060] This embodiment provides a water-based three-dimensional anti-counterfeiting color-changing ink for a two-dimensional code. In terms of mass percentage, the ink includes the following components:

[0061] Aqueous acrylic resin solution 44%;

[0062] Acrylic emulsion 15%;

[0063] Water-based polyurethane resin solution 5%;

[0064] Thermochromic powder 19%;

[0065] Blowing agent 14%;

[0066] Antifoaming agent 1.5%;

[0067] Wetting agent 1.5%.

[0068] The thermochromic powder is a reversible thermochromic powder that changes from colorless to colored at 65°C, and its specific composition is Cu-EDTA complex with a particle size of 7-10μm; the blowing agent is thermally expandable The microcapsule includes a capsule wall and a capsule core, the capsule wall is a vinylidene chloride-acrylonitrile copolymer, the capsule core is pentane, and the particle size is 8-12 μm.

[0069] Among them, the aqueous acrylic resin solution is prepared from solid acrylic resin, pure water, and ammon...

Embodiment 3

[0080] This embodiment provides a water-based three-dimensional anti-counterfeiting color-changing ink for a two-dimensional code. In terms of mass percentage, the ink includes the following components:

[0081] Aqueous acrylic resin solution 33.5%;

[0082] Acrylic emulsion 21%;

[0083] 9% aqueous polyurethane resin solution;

[0084] Thermochromic powder 16%;

[0085] Blowing agent 18%;

[0086] Antifoaming agent 1.3%;

[0087] Wetting agent 1.2%.

[0088] The thermochromic powder is a reversible thermochromic powder that changes from colorless to colored at 65°C, and its specific component is a compound formed by cobalt chloride and hexamethylenetetramine, with a particle size of 7-10 μm; The foaming agent is a heat-expandable microcapsule, which includes a capsule wall and a capsule core, the capsule wall is a vinylidene chloride-acrylonitrile copolymer, the capsule core is hexane, and its particle size is 8-12 μm.

[0089] Among them, the aqueous acrylic resin solution is prepared fr...

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Abstract

The invention belongs to the technical field of two-dimensional codes, and particularly relates to a two-dimensional code waterborne stereoscopic anti-counterfeit color-changing ink. The ink is prepared from the following components in mass by percentage: 30% to 50% of aqueous acrylic resin solution; 15% to 25% of acrylic emulsion; 5% to 10% of waterborne polyurethane resin solution; 15% to 25% ofthermochromic powder; 10% to 20% of foaming agent; and 1.0% to 3.0% of auxiliaries. The thermochromic powder is a reversible thermochromic powder capable of changing from colorless to colored at 55 DEG C to 75 DEG C, and the foaming agent is a heat-expandable microcapsule. An anti-counterfeiting mark of the two-dimensional code using the ink (the anti-counterfeiting mark can be letters, numbers,graphics and the like, and can be connected with a database of a production company) is not visible at a normal temperature, and presents a three-dimensional shape at a high temperature, and the colorchanges from colorless to colored, the ink is strong in three-dimension, has clear edges and good friction resistance, is not easy to fall off, and is green and environmentally friendly. The color isreversible while a bulge is irreversible, and use of two-dimensional code is avoided being stolen while maintaining fun.

Description

Technical field [0001] The invention belongs to the technical field of two-dimensional codes, and particularly relates to a water-based three-dimensional anti-counterfeiting color-changing ink for two-dimensional codes. Background technique [0002] The QR code has built a bridge between the Internet of Things and the digital world of the Internet. It has great advantages in product traceability, product information service tracking, online business, and sharing economy, and is widely used in various industries. However, the QR code itself, as a printed matter, is extremely easy to be copied and counterfeited, leading to the proliferation of anti-counterfeiting and counterfeit products. In addition, due to the uncertainty of the QR code link object, it is easy to be used by criminals to cause information leakage and economic losses. Therefore, it is important to ensure the authenticity and non-copyability of the QR code. [0003] In view of this, the present invention aims to prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/50C09D11/107
CPCC09D11/107C09D11/50
Inventor 马超肖武武军张朝忠沈海生陈倩常英王红霞杨伟栋葛纪者
Owner 永发印务(东莞)有限公司
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