Anti-counterfeiting gilding film

Abstract

The utility model belongs to the technical field of anti-counterfeit labels, and particularly relates to an anti-counterfeit gold stamping film which comprises a base film, a separation layer, a color layer, an aluminum plating layer and an adhesive layer, the separation layer is arranged above the base film, the color layer is arranged above the separation layer, the aluminum plating layer is arranged above the color layer, the adhesive layer is arranged above the aluminum plating layer, and the adhesive layer is arranged above the aluminum plating layer. By arranging the DNA marks in the aluminum-plated layer, a highly safe anti-counterfeiting means can be provided, the DNA marks are randomly distributed, so that counterfeiting is very difficult, and due to the fact that a replicator is very difficult to accurately copy the randomly distributed mode, the anti-counterfeiting technology can remarkably improve the safety of products and prevent circulation of counterfeit and shoddy products.

Description

Technical Field

[0001] This utility model belongs to the field of anti-counterfeiting label technology, specifically an anti-counterfeiting hot stamping film. Background Technology

[0002] Anti-counterfeiting hot stamping film has a wide range of applications in many industries. In the paper industry, it is used for book covers, high-end packaging boxes, etc.; in the plastics industry, it is used for cosmetic packaging, electronic product casings, etc.; in the artificial leather and textile industry, it is used for clothing hang tags, leather product labels, etc.; and it is also widely used in the credit card industry and bookbinding industry.

[0003] Existing hot stamping foils are mainly simple electroplated aluminum foils, made by coating a release layer and a color layer on a thin film substrate, vacuum-plating aluminum, and then coating an adhesive layer. These hot stamping foils mainly serve a decorative purpose and have weak anti-counterfeiting functions, making them easy to counterfeit. Existing hot stamping foils that apply single anti-counterfeiting technologies, such as laser anti-counterfeiting hot stamping foils, achieve a certain anti-counterfeiting effect by creating laser patterns on the film. However, as laser pattern making technology has become more widespread, its anti-counterfeiting effect has been affected to some extent, resulting in poor practicality.

[0004] Therefore, this utility model provides an anti-counterfeiting hot stamping film. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The anti-counterfeiting hot stamping adhesive layer of this utility model includes a base film, a release layer, a color layer, an aluminum plating layer, and an adhesive layer. The release layer is disposed above the base film, the color layer is disposed above the release layer, the aluminum plating layer is disposed above the color layer, and the adhesive layer is disposed above the aluminum plating layer.

[0007] Preferably, the color layer contains nano-metal particles, which are uniformly dispersed within the color layer.

[0008] Preferably, the aluminum plating layer contains DNA markers, which are randomly distributed within the aluminum plating layer.

[0009] Preferably, the base film is a polyethylene naphthalate film.

[0010] Preferably, the adhesive layer has anti-counterfeiting labels inside, and the anti-counterfeiting labels are symmetrically distributed in the adhesive layer.

[0011] Preferably, a heat-resistant layer is provided between the aluminum plating layer and the adhesive layer, and the heat-resistant layer is composed of heat-resistant silicone oil.

[0012] Preferably, the adhesive layer is a thermoplastic resin.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The anti-counterfeiting hot stamping film of this utility model provides a highly secure anti-counterfeiting method by setting DNA markers inside the aluminum plating layer. The DNA markers are randomly distributed, which makes counterfeiting very difficult because it is difficult for counterfeiters to accurately replicate this randomly distributed pattern. This anti-counterfeiting technology can significantly improve product security and prevent the circulation of counterfeit and shoddy products.

[0015] 2. The anti-counterfeiting hot stamping film of this utility model improves the stability and durability of the color layer by uniformly dispersing nano-metal particles in the color layer. The nano-metal particles inside the color layer can provide unique visual effects, such as changes in gloss and color, which can enhance the aesthetics and attractiveness of the product. This visual effect can make the product stand out more on the shelf and attract consumers' attention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0018] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a distribution diagram of the nano-metal particles of this invention within the color layer;

[0020] Figure 4 This is a diagram showing the distribution of the anti-counterfeiting lettering inside the adhesive layer of this utility model.

[0021] In the diagram: 1. Base film; 2. Release layer; 3. Color layer; 4. Aluminum plating layer; 5. Adhesive layer; 6. Anti-counterfeiting label; 7. Nano-metal particles; 8. DNA marker; 9. Heat-resistant layer. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 4As shown in the embodiment of this utility model, an anti-counterfeiting hot stamping film includes a base film 1, a release layer 2, a color layer 3, an aluminum plating layer 4, and an adhesive layer 5. The release layer 2 is disposed above the base film 1, and the color layer 3 is disposed above the release layer 2. Nano-metal particles 7 are disposed inside the color layer 3 and are uniformly dispersed in the color layer 3. The aluminum plating layer 4 is disposed above the color layer 3, and DNA markers 8 are disposed inside the aluminum plating layer 4 and are randomly distributed in the aluminum plating layer 4. The adhesive layer 5 is disposed above the aluminum plating layer 4.

[0024] Specifically, the release layer 2 is disposed above the base film 1, and the color layer 3 is disposed above the release layer 2. Nano-metal particles 7 are disposed inside the color layer 3, uniformly dispersed within it. The nano-metal particles 7 can be uniformly dispersed within the color layer 3 using existing chemical dispersion methods, which are existing technologies and will not be elaborated upon here. The visibility of the nano-metal particles 7 within the color layer 3 is primarily based on their optical properties, specifically their surface plasmon resonance (SPR) effect. The nano-metal particles 7 exhibit a significant SPR effect in the visible light range. When the frequency of the incident light matches the vibration frequency of the free electrons on the surface of the nano-metal particles 7, resonant absorption and scattering occur, making the particles visible under an optical microscope or through spectral detection. The uniform dispersion of the nano-metal particles 7 within the color layer 3 improves its stability and durability. The nano-metal particles 7 within the color layer 3 can provide... Unique visual effects, such as variations in gloss and color, enhance the product's aesthetics and appeal, making it stand out on shelves and attracting consumer attention. An aluminum-plated layer 4 is positioned above the color layer 3, with DNA markers 8 randomly distributed within it. These markers can be randomly distributed using existing physical dispersion methods, which are existing technologies and will not be elaborated upon here. Operators can directly observe the DNA markers 8 within the aluminum-plated layer 4 using a scanning electron microscope (SEM) or a transmission electron microscope (TEM). By placing DNA markers 8 within the aluminum-plated layer 4, a highly secure anti-counterfeiting measure is provided. The random distribution of DNA markers 8 makes counterfeiting extremely difficult, as it is hard for counterfeiters to accurately replicate this random distribution pattern. This anti-counterfeiting technology significantly improves product security and prevents the circulation of counterfeit and substandard products.

[0025] like Figure 1 As shown, base film 1 is a polyethylene naphthalate film.

[0026] Specifically, the base film 1 is a polyethylene naphthalate film, which can withstand high temperatures and adapt to the high-temperature environment during the hot stamping process. This prevents the base film 1 from changing its own properties or separating from other layers due to temperature changes, ensuring that the adhesive layer 5 can be firmly attached to the hot stamped item, while also ensuring the stability of functional layers such as the color layer 3 and the aluminum plating layer 4 at high temperatures.

[0027] like Figures 1 to 4 As shown, anti-counterfeiting labels 6 are provided inside the adhesive layer 5, and the anti-counterfeiting labels 6 are symmetrically distributed in the adhesive layer 5.

[0028] Specifically, the symmetrical distribution of the anti-counterfeiting label 6 increases the difficulty of counterfeiting. The symmetrical distribution of the anti-counterfeiting label 6 can improve the recognition of the hot stamping film and can be identified by automated inspection equipment, which helps to quickly detect and ensure product quality during the production process and improve production efficiency.

[0029] like Figures 1 to 2 As shown, a heat-resistant layer 9 is provided between the aluminum plating layer 4 and the adhesive layer 5. The heat-resistant layer 9 is composed of heat-resistant silicone oil.

[0030] Specifically, the heat-resistant layer 9 is composed of heat-resistant silicone oil, which has excellent high-temperature resistance and can remain stable in high-temperature environments. A surface pretreatment method is used to pretreat the surface of the aluminum plating layer 4 to enhance the adhesion of the silicone oil. For example, plasma treatment technology can be used to activate the surface of the aluminum plating layer 4, which can significantly improve the bonding force between the silicone oil and the aluminum plating layer 4. After the silicone oil is attached, appropriate heat treatment (such as 100-200℃) can make the silicone oil stably react and adhere on the surface of the aluminum plating layer 4, while avoiding the oxidation and volatilization of the silicone oil in high-temperature environments. The addition of the heat-resistant layer 9 can reduce the thermal stress between the aluminum plating layer 4 and the adhesive layer 5, improve the overall stability of the hot stamping film, and reduce the risk of delamination, peeling and other phenomena at high temperatures.

[0031] like Figures 1 to 2 As shown, adhesive layer 5 is a thermoplastic resin.

[0032] Specifically, thermoplastic resins have excellent flexibility and resistance to high and low temperatures, which allows the adhesive layer 5 to maintain good adhesion under different temperature conditions. The thermoplastic resin composition does not contain a curing agent, has good high-temperature fluidity, and can meet the requirements of low-temperature pressing. This provides convenience for the processing and application of adhesives, making them easier to coat and cure, thereby improving production efficiency.

[0033] Working principle: A release layer 2 is positioned above the base film 1, and a color layer 3 is positioned above the release layer 2. Nano-metal particles 7 are uniformly dispersed within the color layer 3. These nano-metal particles 7 can be uniformly dispersed within the color layer 3 using existing chemical dispersion methods, which are existing technologies and will not be elaborated upon here. The visibility of the nano-metal particles 7 within the color layer 3 is primarily based on their optical properties, specifically their surface plasmon resonance (SPR) effect. The nano-metal particles 7 exhibit a significant SPR effect in the visible light range. When the frequency of the incident light matches the vibration frequency of the free electrons on the surface of the nano-metal particles 7, resonant absorption and scattering occur, making the particles visible under an optical microscope or through spectral detection. The uniform dispersion of the nano-metal particles 7 within the color layer 3 improves its stability and durability. The nano-metal particles 7 within the color layer 3 can provide... Unique visual effects, such as variations in gloss and color, enhance the product's aesthetics and appeal, making it stand out on shelves and attracting consumer attention. An aluminum-plated layer 4 is positioned above the color layer 3, with DNA markers 8 randomly distributed within it. These markers can be randomly distributed using existing physical dispersion methods, which are existing technologies and will not be elaborated upon here. Operators can directly observe the DNA markers 8 within the aluminum-plated layer 4 using a scanning electron microscope (SEM) or a transmission electron microscope (TEM). By placing DNA markers 8 within the aluminum-plated layer 4, a highly secure anti-counterfeiting measure is provided. The random distribution of DNA markers 8 makes counterfeiting extremely difficult, as it is hard for counterfeiters to accurately replicate this random distribution pattern. This anti-counterfeiting technology significantly improves product security and prevents the circulation of counterfeit and substandard products.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A type of anti-counterfeiting hot stamping film, comprising a base film (1), a release layer (2), a color layer (3), an aluminum plating layer (4), and an adhesive layer (5), characterized in that: A release layer (2) is provided above the base film (1), a color layer (3) is provided above the release layer (2), an aluminum plating layer (4) is provided above the color layer (3), and an adhesive layer (5) is provided above the aluminum plating layer (4).

2. The anti-counterfeiting hot stamping film according to claim 1, characterized in that: The color layer (3) contains nano-metal particles (7), which are uniformly dispersed in the color layer (3).

3. The anti-counterfeiting hot stamping film according to claim 1, characterized in that: DNA markers (8) are disposed inside the aluminum plating layer (4), and the DNA markers (8) are randomly distributed in the aluminum plating layer (4).

4. The anti-counterfeiting hot stamping film according to claim 1, characterized in that: The base film (1) is a polyethylene naphthalate film.

5. The anti-counterfeiting hot stamping film according to claim 1, characterized in that: The adhesive layer (5) is provided with anti-counterfeiting strips (6) inside, and the anti-counterfeiting strips (6) are symmetrically distributed in the adhesive layer (5).

6. The anti-counterfeiting hot stamping film according to claim 1, characterized in that: A heat-resistant layer (9) is provided between the aluminum plating layer (4) and the adhesive layer (5), and the heat-resistant layer (9) is composed of heat-resistant silicone oil.

7. The anti-counterfeiting hot stamping film according to claim 1, characterized in that: The adhesive layer (5) is a thermoplastic resin.

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