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Screen identifying liquid crystal film belt and preparation method thereof

A liquid crystal film and screen technology, which is applied in the field of screen recognition liquid crystal film and its preparation, can solve the problems of easy falling off and weak combination of anti-counterfeiting marks, and achieve the effects of firm combination, increased aesthetics, and high anti-counterfeiting strength

Inactive Publication Date: 2019-08-27
SHANDONG TAIBAO PREVENTING COUNTERFEIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If an anti-counterfeit film tape that can be identified by the screen is prepared and hot stamped on the substrate, the convenience of authenticity identification can be greatly improved, and its application range can be broadened, and it can solve the problem of weak combination of anti-counterfeit marks adhered by adhesives. easy shedding problem

Method used

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  • Screen identifying liquid crystal film belt and preparation method thereof
  • Screen identifying liquid crystal film belt and preparation method thereof
  • Screen identifying liquid crystal film belt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The screen recognition liquid crystal film belt includes a plastic film layer 1, a release layer 2, a color layer 3, an alignment layer 4, a liquid crystal layer 5 and a hot stamping glue layer 6 arranged in sequence from top to bottom, wherein,

[0074] The alignment layer 4 is a layer of coating that induces the alignment of liquid crystal molecules, which 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;

[0075] The film tape 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°.

[0076] The plastic film layer 1 is a PET transparent film with a thickness of 16 μm.

[0077] Its preparation method steps are as follows:

[0078] 1) Coating release layer 2 on one side of pla...

Embodiment 2

[0104] The structure and preparation method of the screen recognition liquid crystal film tape are the same as in Example 1.

[0105] The difference is:

[0106] The plastic film layer 1 is a PC transparent film with a thickness of 40 μm.

[0107] Described alignment layer 4 material formula is:

[0108]

[0109] in,

[0110] The mixed liquid crystal is a mixture of RM257, C6M and LC242, and the mass ratio of the three is 1:1:1.

[0111] The photosensitive alignment agent is a mixture of polyvinyl alcohol and cinnamate, and the mass ratio of the two is 2:1.

[0112] Described initiator is Irgacure784.

[0113] Described solvent is acetone.

[0114] The solid content of the paint is 20%.

[0115] Described liquid crystal macromolecule paint is made of the raw material of following percentage by weight:

[0116]

[0117] The thickness of the liquid crystal layer 5 is 0.5g / m 2 .

[0118] The hot stamping glue is a composite hot-melt adhesive film, and the amount of...

Embodiment 3

[0120] The structure and preparation method of the screen recognition liquid crystal film tape are the same as in Example 1.

[0121] The difference is:

[0122] The plastic film layer 1 is a PP transparent film with a thickness of 80 μm.

[0123] Described alignment layer 4 material formula is:

[0124]

[0125] The mixed liquid crystal is a mixture of RM257, C6M and LC242, and the mass ratio of the three is 3:2:1.

[0126] The photosensitive alignment agent is a mixture of polyvinyl alcohol and cinnamate, and the mass ratio of the two is 3:1.

[0127] Described initiator is Irgacure907.

[0128] The solids content of the paint is 30%.

[0129] Described liquid crystal macromolecule paint is made of the raw material of following percentage by weight:

[0130]

[0131] The thickness of the liquid crystal layer 5 is 2g / m 2 .

[0132] The hot stamping glue is a coating solvent glue, and the coating glue amount is 13g / m 2 , the drying temperature is 85°C, and the ve...

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Abstract

The invention relates to an anti-fake product, in particular to a screen identifying liquid crystal film belt and preparation method thereof. The screen identifying liquid crystal film belt comprisesa plastic film layer, a releasing layer, a color layer, an alignment layer, a liquid crystal layer and a thermoprint glue layer which are sequentially arranged from the top to the bottom, wherein thealignment layer is a coating layer inducing directional alignment of liquid crystal molecules, and at least comprises two areas with different optical anisotropy, and the two areas have the same phasedelay n lambada / 2, and n is an odd number; and the film belt comprises hidden information which cannot be identified directly by naked eyes, the hidden information is displayed under polarized lightilluminating, and direction is changed by 90 degrees, and a yin and yang complementary pattern is displayed. According to the screen identifying liquid crystal film belt, the hidden information whichcannot be directly identified by the naked eyes is contained, the information can be observed through polarized light illuminated by a phone screen or a computer screen, identifying is simple, the degree of anti-fake is high, the screen identifying liquid crystal film belt can be thermoprinted to various base materials, combination is firm, the application range is widened, the performance of anti-transferring is good, and secondary use can be effectively prevented; and the preparation method is easy to operate.

Description

technical field [0001] The invention relates to an anti-counterfeiting product, in particular to a screen recognition liquid crystal film strip 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 refers to an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/02G02F1/1337
CPCG02F1/133753G09F3/0294G02F1/133757
Inventor 徐立宣程祥峰宋庆涛徐文娟田亮万杰
Owner SHANDONG TAIBAO PREVENTING COUNTERFEIT
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