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Screen recognition liquid crystal anti-counterfeiting mark and preparation method thereof

An anti-counterfeiting mark and liquid crystal technology, which is applied in the field of anti-counterfeiting marks, can solve the problems that identification tools cannot be well popularized, affect the convenience of authenticity identification, etc., and achieve the effects of preventing secondary use, good anti-transfer effect, and stable performance.

Pending Publication Date: 2019-08-16
CHINA COMMERCE NETWORKS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of technology has good concealment, and some high-level technologies can obtain good anti-counterfeiting effects, but there is always a problem in the second-line anti-counterfeiting technology, that is, the identification tools cannot be popularized well, which affects the convenience of authenticity identification

Method used

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  • Screen recognition liquid crystal anti-counterfeiting mark and preparation method thereof
  • Screen recognition liquid crystal anti-counterfeiting mark and preparation method thereof
  • Screen recognition liquid crystal anti-counterfeiting mark and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] The screen recognition liquid crystal anti-counterfeit mark includes a plastic film layer 1, a color layer 2, an orientation layer 3, a liquid crystal layer 4, an adhesive layer 5, a printing layer 6, a substrate layer 7 and a pressure-sensitive adhesive arranged in sequence from top to bottom Layer 8, where,

[0084] The alignment layer 3 is a layer of coating that induces the alignment of liquid crystal molecules, and it includes at least two regions with different optical anisotropy, and the two regions have the same phase retardation difference nλ / 2, where n is an odd number;

[0085] The logo contains hidden information that cannot be directly recognized by the naked eye, and the hidden information is displayed under polarized light irradiation, and a yin-yang complementary pattern is displayed when the direction is changed by 90°.

[0086] The plastic film layer 1 is a PET transparent film with a thickness of 40 μm.

[0087] The information on the printing layer ...

Embodiment 2

[0117] The screen recognition liquid crystal anti-counterfeit mark includes a plastic film layer 1, a color layer 2, an orientation layer 3, a liquid crystal layer 4, an adhesive layer 5, a printing layer 6, a substrate layer 7 and a pressure-sensitive adhesive arranged in sequence from top to bottom Layer 8, where,

[0118] The alignment layer 3 is a layer of coating that induces the alignment of liquid crystal molecules, and it includes at least two regions with different optical anisotropy, and the two regions have the same phase retardation difference nλ / 2, where n is an odd number;

[0119] The logo contains hidden information that cannot be directly recognized by the naked eye, and the hidden information is displayed under polarized light irradiation, and a yin-yang complementary pattern is displayed when the direction is changed by 90°.

[0120] The plastic film layer 1 is a PP transparent film with a thickness of 16 μm.

[0121] The information on the printing layer 6...

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Abstract

The invention relates to an anti-counterfeiting mark, in particular to a screen recognition liquid crystal anti-counterfeiting mark and a preparation method thereof. The screen recognition liquid crystal anti-counterfeiting mark comprises a plastic film layer, a color layer, an orientation layer, a liquid crystal layer, an adhesive layer, a printing layer, a base material layer and a pressure-sensitive adhesive layer which are arranged in sequence from top to bottom, wherein the orientation layer is a coating inducing the directional arrangement of liquid crystal molecules, and comprises at least two areas with different optical anisotropies, and the two areas have a same phase delay difference n lambda / 2, wherein n is odd number; the mark contains hidden information which cannot be directly identified by the naked eye, the hidden information is displayed under the irradiation of polarized light, a complementary pattern of yin and yang is displayed when the direction changes by 90 degrees. The mark contains the hidden information which cannot be directly identified by the naked eye, the information can be observed by the polarized light emitted by a mobile phone screen or a computer screen, the identification is simple, the anti-counterfeiting effect is good, and secondary use can be effectively prevented; the preparation method is scientific, reasonable, simple and easy to perform.

Description

technical field [0001] The invention relates to an anti-counterfeiting mark, in particular to a screen recognition liquid crystal anti-counterfeiting mark and a preparation method thereof. Background technique [0002] Anti-counterfeiting products are products made of anti-counterfeiting technology for the purpose of anti-counterfeiting and have anti-counterfeiting functions. Due to the continuous popularization of color copiers and imaging systems and the continuous development of various printing technologies, there has been an increasing phenomenon of counterfeit anti-counterfeiting products. The anti-counterfeiting anti-counterfeiting technology is divided into first-line anti-counterfeiting and second-line anti-counterfeiting according to whether it needs the assistance of identification tools. First-line anti-counterfeiting generally refers to anti-counterfeiting technology that can be judged directly by naked eyes without any tools. Second-line anti-counterfeiting r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/02G02F1/1337
CPCG09F3/0294G02F1/133753G02F1/133757
Inventor 程祥峰王立江宋庆涛徐文娟田亮
Owner CHINA COMMERCE NETWORKS SHANGHAI
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