A hidden pattern information anti-counterfeiting label, a manufacturing method and an identification method

Abstract

The application belongs to the technical field of anti-counterfeiting, and particularly relates to a hidden pattern information anti-counterfeiting label, a manufacturing method and an identification method. The anti-counterfeiting label comprises an information layer, the information layer comprises a plurality of arranged microstructures, one side of the microstructure is provided with a flat reflection unit, the other side of the microstructure is provided with a secondary etching laser encryption information unit, the secondary etching laser encryption information unit is arranged on the reflection surface of the flat reflection unit, the flat reflection unit forms a micro-relief texture, the secondary etching laser encryption information unit forms a hidden information texture, and the hidden information is presented through the hidden information texture. Therefore, the anti-counterfeiting label can carry hidden information, can also display any other holographic technology in the same area, and does not affect the effect display of other holographic technologies. The manufacturing method of the hidden pattern information anti-counterfeiting label can be used to manufacture the anti-counterfeiting label disclosed in the application, and the anti-counterfeiting label can be identified by means of a laser pen.

Description

Technical Field

[0001] This application belongs to the field of anti-counterfeiting technology, and in particular relates to an anti-counterfeiting label with hidden pattern information, its manufacturing method and identification method. Background Technology

[0002] Laser embossing holographic anti-counterfeiting technology has been introduced to my country for nearly 40 years. When it was first introduced, it did play a certain role in preventing counterfeiting due to its high production threshold. However, as time has passed, laser holographic anti-counterfeiting technology has spread and has now been mastered by counterfeiters, making it easy for them to produce fake labels.

[0003] To address this, some anti-counterfeiting companies have begun using optical image encoding encryption technologies such as laser encryption, random interference fringes, and moiré fringes. These technologies can be embedded in specific areas of the laser label, revealing the hidden information when detected using special tools. However, because laser encryption technology is predominantly white, lacking vibrant color and aesthetic appeal, it is typically used as an accent on labels and not applied over large areas. Therefore, there is an urgent need for a hidden laser encryption technology that balances both aesthetics and anti-counterfeiting capabilities. Summary of the Invention

[0004] In order to solve the above problems, this application provides a hidden pattern information anti-counterfeiting label, a manufacturing method and an identification method.

[0005] The primary objective of this application is to provide a hidden pattern information anti-counterfeiting label, which not only carries hidden information but also displays any other holographic technology in the same area without affecting the display of other holographic technologies.

[0006] A hidden pattern information anti-counterfeiting label includes an information layer, a PET layer at the top of the information layer, an aluminum-plated layer at the bottom of the information layer, and several arranged microstructures. One side of each microstructure has a flat reflective unit, and the other side of each microstructure has a secondary overprinted laser-encrypted information unit. The secondary overprinted laser-encrypted information unit is arranged on the reflective surface of the flat reflective unit. The flat reflective unit forms a micro-relief texture, and the secondary overprinted laser-encrypted information unit forms a hidden information texture. The hidden information is presented through the hidden information texture.

[0007] Furthermore, the thickness of the information layer is 1-2 micrometers.

[0008] Furthermore, the microstructure linewidth is less than 10 micrometers, the periodic interval of the micro-relief texture is less than 2 micrometers, and the periodic interval of the hidden information texture is less than 0.5 micrometers.

[0009] Furthermore, the micro-relief texture creates one or more of the following five effects: Fresnel lens, crystal relief, color grating, true color, and two-dimensional background.

[0010] Furthermore, the overlay error between the micro-relief texture and the hidden information texture is less than 0.2 micrometers.

[0011] Furthermore, the hidden information can be text, patterns, or any custom graphic.

[0012] The second objective of this application is to provide a method for producing anti-counterfeiting labels with hidden pattern information, which can be used to produce the anti-counterfeiting labels disclosed in this application.

[0013] A method for producing a hidden pattern information anti-counterfeiting label includes the following steps:

[0014] S1. Create the information layer, controlling its thickness to be 1-2 micrometers;

[0015] S2. The information layer is transferred to the PET layer through molding and UV transfer processes, and the thickness of the PET layer is less than 50 micrometers.

[0016] S3. An aluminum-plated layer is arranged on the side of the information layer away from the PET layer.

[0017] Furthermore, in step S1, a micro-relief texture is formed on the microstructure of the information layer by photolithography, and a hidden information texture is formed on the reflective surface of the flat reflective unit of the microstructure by photolithography and then by overlay.

[0018] Furthermore, the microstructure linewidth is controlled to be less than 10 micrometers, the periodic interval of the micro-relief texture is less than 2 micrometers, the periodic interval of the hidden information texture is less than 0.5 micrometers, and the overlay error between the micro-relief texture and the hidden information texture is less than 0.2 micrometers.

[0019] The third objective of this application is to provide a method for identifying anti-counterfeiting labels using a handheld point light source device, in order to obtain hidden information in the anti-counterfeiting labels.

[0020] A laser pointer is shone onto the aforementioned hidden pattern information anti-counterfeiting label. A piece of white paper is placed diagonally above the label to receive the hidden information in the reflected light. The hidden information is compared with reference information to determine the authenticity of the label.

[0021] Compared with the prior art, the beneficial effects of this application are as follows:

[0022] 1. The anti-counterfeiting label of this application has a microstructure in the information layer consisting of micro-embossed texture and hidden information texture. When the anti-counterfeiting label is observed from the surface, its appearance is no different from that of an ordinary laser holographic label. However, when the holographic area on the surface of the label is illuminated with a laser pointer, the hidden information is revealed. Consumers can identify the authenticity of the label by identifying the hidden information. Unlike ordinary laser encryption technology, the technology of this application can not only carry hidden information, but also display any other holographic technology in the same area without affecting the effect of other holographic technologies.

[0023] 2. The anti-counterfeiting label of this application can hide laser encryption technology in the entire label, which does not affect the aesthetics of the anti-counterfeiting label, but also achieves the function of laser encryption. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] Figure 1 This is a schematic diagram of the overall structure of this application.

[0026] In the picture:

[0027] 1. PET layer, 2. Information layer, 3. Flat reflective unit, 4. Secondary overlay laser-encrypted information unit. Detailed Implementation

[0028] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] In this application, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this application and do not specifically refer to any part or element in this application. They should not be construed as limiting this application.

[0031] Example 1

[0032] This embodiment is a hidden pattern information anti-counterfeiting label. This anti-counterfeiting label can not only carry hidden information, but also display any other holographic technology in the same area without affecting the display effect of other holographic technologies. From the macroscopic structure of the composite layer, the anti-counterfeiting label of this embodiment includes an information layer 2, a PET layer 1 arranged on the upper end of the information layer 2, an aluminum-plated layer arranged on the lower end of the information layer 2, and an adhesive layer arranged on the lower end of the aluminum-plated layer, and a silicone paper layer arranged on the lower end of the adhesive layer.

[0033] From the microstructure perspective of the composite layer, information layer 2 comprises several arranged microstructures. For example, in this embodiment, the microstructures are shaped like triangular prisms or triangular pyramids, such as... Figure 1 As shown, from the cross-section of the microstructure, the microstructure has two sides. One side of the microstructure has a flat reflective unit 3, and the other side has a secondary overprinted laser encryption information unit 4. The secondary overprinted laser encryption information unit 4 is arranged on the reflective surface of the flat reflective unit 3. The flat reflective unit 3 is used to form a micro-relief texture, and the secondary overprinted laser encryption information unit 4 is used to form a hidden information texture. The hidden information is presented through the hidden information texture. From the pattern perspective, the information layer 2 of this embodiment is a micro-relief pattern, a micro-line pattern, or a concentric circle structure, or a combination thereof. As a more specific implementation, the micro-relief texture of this embodiment can form any one or more of five effects: Fresnel lens, crystal relief, color grating, true color, and two-dimensional background. The hidden information is text, pattern, or any customized graphic, which can be set according to customer needs and consumer preferences. From the thickness of the composite layer perspective, the thickness of the PET layer 1 in this embodiment does not exceed 50 micrometers. Generally, the thickness of the PET layer 1 is 30-50 micrometers. The thickness of information layer 2 is 1-2 micrometers. In a preferred embodiment, the thickness of information layer 2 does not exceed 1.5 micrometers. The microstructure linewidth is less than 10 micrometers, that is, the length of the projection of the microstructure on the aluminum plating layer is less than 10 micrometers. The periodic interval of the micro-relief texture is less than 2 micrometers, that is, the interval between adjacent micro-relief textures is less than 2 micrometers. In a preferred embodiment, the interval is generally between 0.6 micrometers and 1.5 micrometers. The periodic interval of the hidden information texture is less than 0.5 micrometers, that is, the interval between adjacent hidden information textures is less than 0.5 micrometers. In a preferred embodiment, the interval is generally between 0.3-0.4 micrometers. The overprinting error between the micro-relief texture and the hidden information texture is less than 0.2 micrometers, so that the hidden information texture can be accurately overprinted on the reflective surface of the micro-relief texture. The hidden information texture does not affect the reflective performance and effect of the micro-relief texture. The hidden information texture is a stripe after digital holographic algorithm, containing hidden information. When illuminated with a laser pointer, the hidden information is presented through the hidden information texture. The aluminum plating layer is used to enhance the intensity of the reflected light.

[0034] In this embodiment, the anti-counterfeiting label needs to be mass-produced. This embodiment discloses a method for producing an anti-counterfeiting label with hidden pattern information, including the following steps:

[0035] S1. Fabricate information layer 2, and control the thickness of information layer 2 to be 1 micrometer-2 micrometers. Preferably, in this embodiment, the thickness of information layer 2 can be controlled to not exceed 1.5 micrometers.

[0036] S2. The information layer 2 is transferred to the PET layer 1 through molding and UV transfer processes. The thickness of the PET layer 1 is less than 50 micrometers. Preferably, the thickness of the PET layer 1 is 30-50 micrometers.

[0037] S3. An aluminum-plated layer is arranged on the side of information layer 2 away from PET layer 1.

[0038] More specifically, in this embodiment, an adhesive layer is arranged at the lower end of the aluminum plating layer, and a silicone paper layer is arranged at the lower end of the adhesive layer.

[0039] In step S1, a micro-relief texture is formed on the microstructure of information layer 2 by photolithography. Then, a hidden information texture is formed on the reflective surface of the flat reflective unit 3 of the microstructure by photolithography and overlay. This makes information layer 2 a holographic diffraction stripe layer with encoded information and contains a grating structure with hidden encoded information. When identifying the label, a laser pointer is used to illuminate the label surface, and the hidden information is revealed. Consumers can identify the authenticity of the label by identifying the hidden information.

[0040] In step S1, the microstructure linewidth is controlled to be less than 10 micrometers, the periodic interval of the micro-relief texture is less than 2 micrometers, and as a preferred embodiment, the interval is generally between 0.6 micrometers and 1.5 micrometers. The periodic interval of the hidden information texture is less than 0.5 micrometers, and as a preferred embodiment, the interval is generally between 0.3 and 0.4 micrometers. The overlay error between the micro-relief texture and the hidden information texture is less than 0.2 micrometers.

[0041] Based on the characteristics of the anti-counterfeiting label described above, this embodiment provides a method for identifying anti-counterfeiting labels using a handheld point light source device. A laser pointer is shone on the aforementioned hidden pattern information anti-counterfeiting label, and a piece of white paper is placed diagonally above the label to receive the hidden information in the reflected light. The hidden information is compared with reference information to determine the authenticity of the label. When the anti-counterfeiting label of this embodiment is observed from the surface, its appearance is no different from that of an ordinary laser holographic label. However, when the label surface is shone with a laser pointer, the hidden information is revealed.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0043] While the specific embodiments of this application have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this application. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this application are still within the scope of protection of this application.

Claims

1. A hidden pattern information anti-counterfeiting label, characterized in that, It includes an information layer (2), with a PET layer (1) at the top and an aluminum-plated layer at the bottom. From the microstructure of the composite layer, the information layer (2) includes several arranged microstructures. The microstructures are triangular prisms or triangular pyramids. From the cross-section of the microstructure, the microstructure has two sides. One side of the microstructure has a flat reflective unit (3), and the other side of the microstructure has a secondary overprinted laser encryption information unit (4). The secondary overprinted laser encryption information unit (4) is arranged on the reflective surface of the flat reflective unit (3). The flat reflective unit (3) is used to form a micro-relief texture, and the secondary overprinted laser encryption information unit (4) is used to form a hidden information texture. The hidden information is presented through the hidden information texture. From the pattern perspective, the information layer (2) is a micro-relief pattern, micro-line pattern, or concentric circle structure, or a combination thereof. The micro-relief texture forms any one or more of the following five effects: Fresnel lens, crystal relief, color grating, true color, and two-dimensional background. The hidden information is text, pattern, or any customized graphic. The overprinting error between the micro-relief texture and the hidden information texture is less than 0.2 micrometers, so that the hidden information texture can be accurately overprinted on the reflective surface of the micro-relief texture without affecting the reflective performance and effect of the micro-relief texture.

2. The hidden pattern information anti-counterfeiting label as described in claim 1, characterized in that, The thickness of the information layer (2) is 1 micrometer to 2 micrometers.

3. The hidden pattern information anti-counterfeiting label as described in claim 1, characterized in that, The microstructure linewidth is less than 10 micrometers, the periodic interval of the micro-relief texture is less than 2 micrometers, and the periodic interval of the hidden information texture is less than 0.5 micrometers.

4. A method for producing a hidden pattern information anti-counterfeiting label, used to produce the hidden pattern information anti-counterfeiting label as described in claim 1, characterized in that: Includes the following steps: S1. Create information layer (2) and control the thickness of information layer (2) to be 1 micrometer-2 micrometers; S2. The information layer (2) is transferred to the PET layer (1) by molding and UV transfer processes. The thickness of the PET layer (1) is less than 50 micrometers. S3. An aluminum plating layer is arranged on the side of the information layer (2) away from the PET layer (1).

5. The method for producing a hidden pattern information anti-counterfeiting label as described in claim 4, characterized in that, In step S1, a micro-relief texture is formed on the microstructure of the information layer (2) by photolithography, and a hidden information texture is formed on the reflective surface of the flat reflective unit (3) of the microstructure by photolithography and then by overlay.

6. The method for producing a hidden pattern information anti-counterfeiting label as described in claim 5, characterized in that, The microstructure linewidth is controlled to be less than 10 micrometers, the periodic interval of the micro-relief texture is less than 2 micrometers, the periodic interval of the hidden information texture is less than 0.5 micrometers, and the overlay error between the micro-relief texture and the hidden information texture is less than 0.2 micrometers.

7. A method for identifying anti-counterfeiting labels using a handheld point light source device, characterized in that, A laser pointer is shone onto a hidden pattern information anti-counterfeiting label as described in any one of claims 1-3. A piece of white paper is placed diagonally above the label to receive the hidden information in the reflected light. The hidden information is compared with reference information to determine the authenticity of the label.

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