阅读说明：本技术 一种全息防伪膜及其制备方法 (Holographic anti-counterfeiting film and preparation method thereof ) 是由 张惠荣 李建云 刘杉 于 2020-06-05 设计创作，主要内容包括：本申请提供一种全息防伪膜,所述全息防伪膜中包括数据信息,所述数据信息尺寸小,可被识读设备正确识读,从而提高防伪的可靠性,本申请还提供一种制备所述全息防伪膜的方法,所述方法通过加镀非金属镀层对图文树脂层进行保护,从而使得图文树脂层在热缩合过程中图像不发生变形,从而获得具有可读数据信息的全息防伪膜。(The application provides a holographic anti-counterfeiting film, including data information in the holographic anti-counterfeiting film, data information size is little, can be read by the correct recognition of recognition equipment to improve anti-fake reliability, the application still provides a preparation holographic anti-counterfeiting film's method, the method protects the picture and text resin layer through adding the non-metallic coating that plates, thereby makes the picture and text resin layer not take place to warp at the thermal condensation in-process image, thereby obtains the holographic anti-counterfeiting film that has readable data information.)

1. The holographic anti-counterfeiting film is characterized by comprising a base material layer (1), a separation layer (2), an image-text resin layer (3), a non-metal coating (4), a metal coating (5) and a hot melt adhesive layer (6) which are laminated in sequence.

2. The holographic anti-counterfeiting film according to claim 1,

the thickness of the substrate layer (1) is 10 to 30 μm, preferably 12 to 20 μm, for example, 15 μm; and/or

The above-mentionedThe dry weight of the separation layer (2) was 0.8g/m²～2.0g/m²Preferably 1.0g/m²～1.5g/m²For example, 1.2g/m²(ii) a And/or

The thickness of the image-text resin layer (3) is 0.5-2 μm, preferably 0.8-1.5 μm, for example, 1.2 μm; and/or

The thickness of the non-metal plating layer (4) is 100 nm to 300 nm, preferably 150 nm to 250 nm, for example, 200 nm; and/or

The thickness of the metal coating (5) is 250-650 nm, preferably 300-450 nm, for example 350 nm; and/or

The dry weight of the hot melt adhesive layer (6) is 1g/m²～2g/m²Preferably 1.2g/m²～1.8g/m²For example, 1.5g/m²。

3. Holographic anti-counterfeiting film according to claim 1 or 2, wherein the image-text resin layer (3) comprises an anti-counterfeiting data information area (31) and a non-data image-text information area (32).

4. The holographic anti-counterfeiting film according to claim 3, wherein the anti-counterfeiting data information area (31) comprises a laminated data information digital sublayer (311), a key digital sublayer (312), a de-noising anti-counterfeiting digital sublayer (313) and a physical carrier replication verification model sublayer (314).

5. The holographic anti-counterfeiting film according to claim 3 or 4, wherein the size of the anti-counterfeiting data information area (31) can be 10mm x 10mm to 3mm x 3mm, and the anti-counterfeiting data information area (31) comprises a plurality of color blocks, and the side length of each color block is 0.01mm to 0.1 mm.

6. The holographic anti-counterfeiting film according to any one of claims 1 to 5, wherein the material for preparing the non-metal coating (4) comprises silicon dioxide or zinc sulfide.

7. The holographic anti-counterfeiting film according to any one of claims 1 to 6, wherein the light transmittance of the non-metal plating layer (4) is 90 to 95 percent; and/or a refractive index of 1.43 to 1.47.

8. The holographic anti-counterfeiting film according to any one of claims 1 to 7, wherein the non-metal plating layer (4) has a Mohs hardness of 6 to 7.

9. A method of making the holographic anti-counterfeiting film of any one of claims 1 to 8, the method comprising:

preparing a graph-text printing roller according to the holographic anti-counterfeiting graph and text, and performing extinction processing on the data information area;

coating a separation layer coating on the substrate to form a separation layer;

coating resin paint on the separation layer to form an image-text resin layer;

presetting pictures and texts on the picture and text resin layer in a mould pressing way by using the picture and text roller;

preparing a non-metal coating layer on the image-text resin layer;

preparing a metal coating layer on the nonmetal coating layer;

and preparing a hot melt adhesive layer on the metal coating layer.

10. The method of claim 9 wherein said step of forming a non-metallic coating on said graphic resin layer is carried out under a vacuum of 1 x 10^-2～1×10^-3Pa, heating the non-metallic substance to 1000-3000 ℃.

Technical Field

The application belongs to the field of anti-counterfeiting materials, and particularly relates to a holographic anti-counterfeiting film and a preparation method thereof.

Background

At present, most of anti-counterfeiting films take physical characteristics as anti-counterfeiting elements, and the characteristics are distinguished by visual sense, touch sense or simple identification instruments. For example, a specific pattern is made on the anti-counterfeiting film, whether the specific pattern has preset characteristics is observed through naked eyes or special equipment, and the specific image does not have data information. The anti-counterfeiting film can improve the anti-counterfeiting function by matching with data information such as the two-dimensional code and the like. At present, data information is mainly added to a package or a mark through a printing or code spraying mode, a processing procedure needs to be additionally added in the mode of adding the data information, the processing technology difficulty is increased, and the added data information does not have an anti-counterfeiting function and is very easy to be copied and counterfeited by lawbreakers.

Therefore, the trend of anti-counterfeiting technology is to add and prepare data information with anti-counterfeiting information on the holographic anti-counterfeiting film. However, taking a two-dimensional code as an example, the data information bears information by a set of collected light and dark points, and since the light and dark points are small in size and are collected, the difficulty of engraving the data information on the holographic film is high, and in addition, the data information is lost due to the thermal deformation of the holographic film in the process of thermal condensation of the holographic film, so that the information code cannot be effectively loaded in the holographic film at present.

Disclosure of Invention

In order to solve the problems, the application provides a holographic anti-counterfeiting film which comprises data information, wherein the data information is small in size and can be correctly read by reading equipment, so that the anti-counterfeiting reliability is improved.

The present application aims to provide the following aspects:

in a first aspect, the application provides a holographic anti-counterfeiting film, which comprises a substrate layer 1, a separation layer 2, an image-text resin layer 3, a non-metal coating layer 4, a metal coating layer 5 and a hot melt adhesive layer 6 which are laminated in sequence.

In a realisable manner, the thickness of the substrate layer 1 is between 10 μm and 30 μm, preferably between 12 μm and 20 μm, for example 15 μm; and/or the dry weight of the separation layer 2 is 0.8g/m²～2.0g/m²Preferably 1.0g/m²～1.5g/m²For example, 1.2g/m²(ii) a And/or the thickness of the image-text resin layer 3 is 0.5 μm to 2 μm, preferably 0.8 μm to 1.5 μm, for example, 1.2 μm; and/or the thickness of the non-metal plating layer 4 is 100 nm to 300 nm, preferably 150 nm to 250 nm, for example, 200 nm; and/or the thickness of the metal plating layer 5 is 250 nm to 650 nm, preferably 300 nm to 450 nm, for example, 350 nm; and/or the dry weight of the hot melt adhesive layer 6 is 1g/m²～2g/m²Preferably 1.2g/m²～1.8g/m²For example, 1.5g/m²。

In an achievable mode, the substrate layer 1 is a polymer film layer, and optionally, the material for preparing the substrate layer 1 includes BOPET, BOPP, and the like.

In one realizable approach, the material from which the separation layer 2 is made includes an aqueous wax or a solvent wax.

In one realisable form, the material from which the image-text resin layer 3 is made comprises rosin or acrylic resin.

Optionally, the image-text resin layer 3 comprises a security data information area 31 and a non-data image-text information area 32.

Further, the anti-counterfeiting data information area 31 comprises a laminated data information digital sublayer 311, a key digital sublayer 312, a de-noising anti-counterfeiting digital sublayer 313 and a physical carrier copy verification model sublayer 314.

Furthermore, the size of the anti-counterfeiting data information area 31 can be 10mm × 10mm to 3mm × 3mm, wherein a large number of color blocks are included, and the side length of each color block can be 0.01mm to 0.1 mm.

In an achievable manner, the material from which the non-metallic coating 4 is made comprises silicon dioxide or zinc sulphide.

Optionally, the light transmittance of the non-metal plating layer 4 is 90% to 95%; the refractive index is 1.43 to 1.47.

Further, the Mohs hardness of the non-metal plating layer 4 is 6-7.

In one realizable manner, the material from which the metallization 5 is made includes aluminum, copper, silver, and the like.

In one implementable manner, the material from which the hot melt adhesive layer 6 is made comprises a nitrile rubber modified phenolic resin.

It is also an object of the present application to provide a method of preparing the holographic anti-counterfeiting film of the first aspect, the method comprising:

preparing a graph-text printing roller according to the holographic anti-counterfeiting graph and text, and performing extinction processing on the data information area;

coating a separation layer coating on the substrate to form a separation layer;

coating resin paint on the separation layer to form an image-text resin layer;

presetting pictures and texts on the picture and text resin layer in a mould pressing way by using the picture and text roller;

preparing a non-metal coating layer on the image-text resin layer;

preparing a metal coating layer on the nonmetal coating layer;

and preparing a hot melt adhesive layer on the metal coating layer.

In an achievable mode, the temperature of the step of using the image-text roller to mold the preset image-text on the image-text resin layer is 90-160 ℃, preferably 110-140 ℃, for example, 125 ℃; the indentation depth is less than or equal to 1 μm.

In an realizable mode, in the step of preparing the non-metal coating layer on the image-text resin layer, the coating condition is that the vacuum degree is 1 multiplied by 10^-2～1×10^-3Pa, heating the non-metallic substance to 1000-3000 ℃. Under the above conditions, the non-metallic substance can boil and evaporate, and is converted into a gaseous state, and the gaseous state is non-metallicThe material is deposited and cooled on the surface of the continuously moving picture and text resin layer to form a continuous and transparent film layer, namely a non-metal film coating layer.

Optionally, the surface of the non-metal coating layer can be subjected to surface treatment such as corona treatment, so that the surface tension of the non-metal coating layer is greater than or equal to 38dyn/cm, and the firmness of later-stage coating is ensured.

Compared with the prior art, the holographic anti-counterfeiting film provided by the application adds the password data into the laser holographic printing plate through the laser holographic plate making technology in the form of an image, a novel code assigning technology is created, the code assigning is not limited to the traditional printing or digital printing mode, but data information such as passwords is made in the anti-counterfeiting film in advance, and the processes such as laminating, hot stamping, compounding and the like are combined with materials such as other paper and films, so that the data information is added on the surface of a printed matter, so that in subsequent processing, when the anti-counterfeiting performance of a product is effectively improved, the code assigning is enabled to be anti-counterfeiting and more practical. Because the data information in the holographic anti-counterfeiting film is extremely tiny in size, the data information is difficult to read by using conventional reading software and equipment, and the data information needs to be read by special equipment and software, so that misjudgment caused by fuzzy identification of anti-counterfeiting characteristics is avoided. Because the loaded data information is secret and has a small size, a large amount of data information can be lost by a counterfeiter in the scanning and copying process, and therefore the data information cannot be copied through printing or other modes, and the safety of the data information is ensured. Further, the data information is not a simple secret mark or a watermark, but contains a large amount of data information, such as product information, traceability information, logistics information, brand information and the like, so that the anti-counterfeiting film not only can be used as an anti-counterfeiting material, but also can be used as a data information carrier. In addition, the holographic anti-counterfeiting film provided by the application can be produced, transported, stored and used at normal temperature, and has good stability.

The method for preparing the holographic anti-counterfeiting film adopts multiple evaporation modes, a non-metal coating layer is evaporated on the image-text resin layer, and then the metal coating layer is evaporated on the non-metal coating layer, so that the micro structure of the image-text resin layer of the holographic anti-counterfeiting film in the high-temperature condensation process cannot deform, the anti-counterfeiting information of the holographic anti-counterfeiting film is prevented from being lost due to the damage of the micro structure of the image-text resin layer in the later film covering and hot stamping processes, and the completeness and accuracy of data carried by the anti-counterfeiting film are improved.

Drawings

FIG. 1 is a schematic cross-sectional view of a holographic anti-counterfeiting film shown in this example;

FIG. 2 is a diagram showing an object of an anti-counterfeit film according to the present example;

fig. 3 shows an explosion structure diagram of the anti-counterfeiting data information area in the embodiment.

Description of the reference numerals

1-a substrate layer, 2-a separation layer, 3-an image-text resin layer, 31-an anti-counterfeiting data information area, 311-a data information digital sublayer, 312-a key digital sublayer, 313-a denoising anti-counterfeiting digital sublayer, 314-a physical carrier replication verification model sublayer, 32-a non-data image-text information area, 4-a non-metal coating, 5-a metal coating and 6-a hot melt adhesive layer.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of methods consistent with certain aspects of the invention, as detailed in the appended claims.

The holographic anti-counterfeiting film and the preparation method thereof provided by the application are explained in detail by specific examples below.

The following presents a simplified summary of the present scenario.

How to load data information into the holographic anti-counterfeiting film without increasing the application difficulty is always the focus of research and development in the field. The existing technology is a method for producing two-dimensional code hot stamping foil through an aluminum washing process, which is characterized in that an aluminum plating layer of a hot stamping film is corroded through the aluminum washing process, and a two-dimensional code graph is formed on a residual part.

Fig. 1 shows a schematic cross-sectional structure diagram of a holographic anti-counterfeiting film shown in this example, and as shown in fig. 1, the holographic anti-counterfeiting film comprises a substrate layer 1, a separation layer 2, an image-text resin layer 3, a non-metal plating layer 4, a metal plating layer 5 and a hot melt adhesive layer 6 which are laminated in sequence.

In this example, the substrate layer 1 may be any material that can be used as a holographic film substrate in the prior art, for example, a polymer thin film layer, alternatively, the material for preparing the substrate layer 1 may be BOPET or BOPP, and may also be other substrates that can be used for holographic films. The applicant finds that the base material of the material has good affinity effect on the separation coating, the separation coating can be stably combined on the base material and is not easy to peel off, and the base material has good tensile property and high temperature resistance and is suitable for later processing and using conditions.

Alternatively, the substrate layer 1 may have a thickness of 10 μm to 30 μm, preferably 12 μm to 20 μm, for example 15 μm, and the applicant has found that a thickness of the substrate layer 1 in the above range provides sufficient support for the remaining film layers and is also prone to peeling during peeling of the holographic film.

In the present example, the material from which the separation layer 2 is made comprises an aqueous wax or a solvent wax, i.e. the separation layer 2 may be a wax layer.

Optionally, the dry weight of the separation layer 2 is 0.8g/m²～2.0g/m²Preferably 1.0g/m²～1.5g/m²For example, 1.2g/m²In the present example, the separation layer 2 is formed by coating the substrate layer 1 with a fluid material, and the applicant has found that the dry weight of the separation layer 2 in the above range provides sufficient separation between the substrate layer 1 and the image-text resin layer 3 so that the image-text resin layer 3 is not damaged by the substrate layer 1And the holographic film is damaged, and in the process of peeling off the holographic film from the substrate layer 1, the peeling tightness is moderate, so that the image-text resin layer is not damaged, and the image-text information displayed by the image-text resin layer 3 is protected from being lost.

In this example, the material for forming the image-text resin layer 3 may be any one of the materials used for forming the image-text resin layer 3 in the prior art, including rosin or acrylic resin.

Optionally, the thickness of the image-text resin layer 3 is 0.5 μm to 2 μm, preferably 0.8 μm to 1.5 μm, for example 1.2 μm, the applicant has found that the thickness of the image-text resin layer 3 is within the above range, and sufficiently exhibits image-text information after being molded.

Fig. 2 shows a real object diagram of the anti-counterfeiting film of the embodiment, as shown in fig. 2, the image-text resin layer 3 includes an anti-counterfeiting data information area 31 and a non-data image-text information area 32, further, a plurality of anti-counterfeiting data information areas 31 and non-data image-text information areas 32 are alternately distributed on one anti-counterfeiting film, preferably, each anti-counterfeiting data information area 31 and an adjacent non-data image-text information area 32 form an anti-counterfeiting image-text combination, the anti-counterfeiting image-text combination and the adjacent non-data image-text information area 32 can be combined to perform anti-counterfeiting inquiry, and in the actual use process, one anti-counterfeiting image-text combination can be cut into a piece of film and then transferred and attached to a corresponding commodity.

Fig. 3 shows an explosion structure diagram of the anti-counterfeiting data information area 31 of the present embodiment, as shown in fig. 3, the anti-counterfeiting data information area 31 includes a data information digital sublayer 311, a key digital sublayer 312, a de-noising anti-counterfeiting digital sublayer 313 and a physical carrier replication verification model sublayer 314, which are laminated, wherein the sizes of the layers are the same and the layers overlap each other.

Further, the size of the anti-counterfeiting data information area 31 is not particularly limited, and may be 10mm × 10mm to 3mm × 3mm, wherein each anti-counterfeiting data information area 31 includes a large number of color blocks, the side length of each color block may be 0.01mm to 0.1mm, and the color blocks are controlled by an algorithm to be distributed in a three-dimensional space of the anti-counterfeiting data information area 31. The applicant finds that the size of the anti-counterfeiting data information area 31 and the size of the color block are in the ranges, and the data anti-counterfeiting information is difficult to copy through copying and other means, so that the anti-counterfeiting performance is improved.

In this example, the data anti-counterfeit code may use the mobile phone APP or a dedicated device to recognize and read corresponding data information, such as product information, logistics information, supplier information, related links, and the like.

In this embodiment, the anti-counterfeit data information area 31 is an extinction area, so as to avoid reading failure caused by light reflection during reading, i.e., to ensure reading stability.

Further, the non-data image-text information area 32 is a non-light-extinction area, so that anti-counterfeiting can be performed according to the physical characteristics of the image-text information carried by the non-data image-text information area 32.

In this example, the material for preparing the non-metal plating layer 4 includes silicon dioxide or zinc sulfide. The applicant finds that the non-metal coating 4 prepared by the material has a relatively large heat conduction coefficient and can insulate heat in the condensation process, so that the image-text structure of the image-text resin is prevented from being deformed due to heating, the non-metal coating 4 prepared by the material has relatively strong binding force with the image-text resin layer 3, and the non-metal coating 4 cannot deform at the condensation temperature, so that the image-text structure in the image-text resin layer 3 is further protected.

In the present example, the thickness of the non-metal plating layer 4 is 100 nm to 300 nm, preferably 150 nm to 250 nm, for example, 200 nm, and the present applicant found that when the thickness of the non-metal plating layer 4 is within the above range, it can provide sufficient protection for the image-text resin layer, and the color of the anti-counterfeiting film is relatively positive, and if the thickness of the non-metal plating layer 4 is further increased, yellowing of the anti-counterfeiting film is easily caused.

Optionally, the light transmittance of the non-metal plating layer 4 is 90% to 95%; the refractive index is 1.43 to 1.47. The applicant finds that the light transmittance of the non-metal coating 4 is within the above range, and the refractive index is within the above range, the non-metal coating 4 can protect the image-text resin layer 3, and the reading of the data information is not affected.

Further, the Mohs hardness of the non-metal coating 4 is 6-7. The applicant has found that the thickness of the non-metallic coating 4, which is within the above range, provides sufficient protection and support for the image-text resin layer 3.

In this example, the material for preparing the metal plating layer 5 includes aluminum, silver, copper, and the like. The applicant has found that the use of the above-mentioned metals for the preparation of the metallic coating 5 has a very good reflection effect.

In the present example, the thickness of the metal coating 5 is 250 nm to 650 nm, preferably 300 nm to 450 nm, for example, 350 nm, and the applicant found that the metal coating 5 has a good light reflection performance in the above range, and can sufficiently display the graphic and text information.

In this example, the material from which the hot melt adhesive layer 6 is made includes a nitrile rubber modified phenolic resin.

Optionally, the dry weight of the hot melt adhesive layer 6 is 1g/m²～2g/m²Preferably 1.2g/m²～1.8g/m²For example, 1.5g/m². The applicant has found that the dry weight of the hot melt adhesive layer 6 is within the above range, and the thickness of the adhesive layer is moderate, so that the hot melt adhesive layer is suitable for most paper and printing stocks with various surface characteristics.

The application also provides a method for preparing the glued holographic anti-counterfeiting film, which comprises the following steps of 1 to 7:

step 1, preparing a graph-text plate roller according to the holographic anti-counterfeiting graph and text, and performing extinction processing on a data information area.

In this example, holographic non-data image-text information can be designed through computer software, and the data information digital code, the key digital code, the denoising anti-counterfeiting digital code and the physical carrier copy verification model are superposed and compounded by the computer software to generate an anti-counterfeiting data information image, and then the anti-counterfeiting data information image and the non-data image-text information are made into a comprehensive image, wherein the anti-counterfeiting data information and the non-data image-text information are alternately distributed, and the information contained in at least two anti-counterfeiting data information images is different.

In this example, the plate roller with the condensed image is manufactured by the holographic plate making technology, and the background of the anti-counterfeiting data information image area is subjected to extinction processing, so as to ensure that the plate roller cannot be read due to reflection in the reading process.

And 2, coating a separating layer coating on the base material to form a separating layer.

And uniformly coating a separation coating with a release force on the substrate layer by using a printing roller to form a separation layer, wherein the separation coating is as described above and is not described in detail herein.

The substrate layer is as described above and will not be described herein.

And 3, coating resin paint on the separation layer to form an image-text resin layer.

The image-text resin layer is as described above and will not be described herein.

In this example, the coating parameters are not particularly limited, and the image-text resin layer as described above may be obtained.

For example, a resin for generating laser hologram interference fringes may be coated on the separation layer using a 200-mesh coater to form an image-text resin layer having a thickness of 1 μm.

And 4, performing mould pressing on the image-text resin layer by using the image-text plate roller to preset images and texts.

In this example, the temperature may be set to 90 to 160 ℃, and the pattern-patterned resin layer prepared in step 3 may be embossed using the plate roll prepared in step 1, and the indentation depth of the embossed grating may be less than or equal to 1 μm, so that the laser interference fringes having the predetermined pattern may be formed on the surface of the pattern-patterned resin layer.

And 5, preparing a non-metal coating layer on the image-text resin layer.

In this embodiment, the non-metal coating layer is as described above and will not be described herein.

In this example, the plating condition was a degree of vacuum of 1X 10^-2～1×10^-3Pa, heating the non-metallic substance to 1000-3000 ℃. Under the above conditions, the non-metal substance can be boiled and evaporated, and converted into gas state, and the gas state non-metal substance is deposited and cooled on the surface of the continuously moving image-text resin layer to form a continuous and transparent film layerI.e., a non-metallic coating.

Optionally, the surface of the non-metal coating layer can be subjected to surface treatment such as corona treatment, so that the surface tension of the non-metal coating layer is greater than or equal to 38dyn/cm, and the firmness of later-stage coating is ensured.

And 6, preparing a metal coating layer on the nonmetal coating layer.

In this example, the metal coating is as described above and will not be described herein.

The method for producing the metal plating layer is not particularly limited in this example, and the foregoing metal plating layer can be produced preferably. For example, a metal aluminum film layer can be deposited on the surface of the silicon dioxide layer by vacuum metal plating machine, and the thickness of the metal aluminum film layer is 350 nanometers.

And 7, preparing a hot melt adhesive layer on the metal coating layer.

In this example, a coater may be used to coat an adhesive on the surface of the metal-plated layer, thereby forming a hot-melt adhesive layer.

In this example, the hot-melt adhesive layer was applied in a dry coating amount of 1g/m²～2g/m²The drying temperature is 100-150 ℃, for example, 125 ℃, thereby obtaining the thermoprinting film which is suitable for hot stamping and has the password and laser effects.

In this example, after step 7, the product may also be trimmed and rewound.

The application provides a holographic anti-counterfeiting film fuses visual identification's anti-fake image and anti-fake code information as an organic whole, adopts the holographic mould pressing technique of laser to make specific anti-fake image and the data information that has the password in holographic film material, and, data information can be read through specific recognition software and recognition equipment to be applied to anti-fake field. The preparation method provided by the application has the advantages of stable production process, convenience and quickness in product application and wide application prospect.

The utility model provides a mode processing that anti-fake membrane can thermoprint is to anti-fake package, on products such as antifalsification label, not only for the product increases visual anti-fake function, the consumer distinguishes true and false according to sign image characteristic, can also scan through cell-phone APP or special recognition equipment and read, distinguish true and false through the analytic accuracy of system software operation, the corresponding data information is read out in the while discernment, for example, product information, logistics information, supplier's information and relevant link etc. thereby avoid because artifical discrimination error through naked eye or touch identification area, avoid because the economic dispute that the true and false caused, and provide the basis for data application.

Examples

Example 1

(1) Designing holographic non-data image-text information through computer software, superposing and compounding data information digital codes, key digital codes, denoising anti-counterfeiting digital codes and a physical carrier copying verification model by utilizing the computer software to generate an anti-counterfeiting data information image, and manufacturing the anti-counterfeiting data information image and the non-data image-text information into a comprehensive image, wherein the anti-counterfeiting data information and the non-data image-text information are alternately distributed, and the information contained in at least two anti-counterfeiting data information images is different;

(2) the plate roller with the condensed image is manufactured by a holographic plate making technology, and extinction processing is carried out on the background of the anti-counterfeiting data information image area so as to ensure that the plate roller cannot be read due to reflection in the reading process;

(3) uniformly coating a separation coating with a release force on a substrate layer by using a 200-mesh printing roller to form a separation layer, wherein the separation coating is an emulsified water-based wax layer, and the dry coating weight is 1.2g/m²The base material layer is made of a polyester film (BOPET) and has the thickness of 15 mu m;

(4) coating a resin for generating laser holographic interference fringes on the separation layer by using a coater with a 200-mesh screen to form an image-text resin layer, wherein the thickness of the image-text resin layer is 1 mu m;

(5) setting the temperature to be 90-160 ℃, carrying out mould pressing on the image-text resin layer prepared in the step (4) by using the plate roller prepared in the step (2), wherein the indentation depth of the mould pressing grating is less than or equal to 1 mu m, and forming laser interference fringes with preset images and texts on the surface of the image-text resin layer;

(6) SiO is put into a vacuum coating machine₂A solid, is prepared byEvaporating at high temperature, and evaporating a layer of silicon dioxide film, namely a non-metal film coating, on the surface of the image-text resin layer, wherein the thickness of the silicon dioxide layer is 300 nanometers;

(7) evaporating a metal aluminum film layer on the surface of the silicon dioxide layer by using a vacuum metal coating machine, wherein the thickness of the metal aluminum film layer is 350 nanometers;

(8) and coating a layer of hot melt adhesive on the surface of the metal aluminum layer by using a coating machine to form a hot melt adhesive layer.

After step (8), the product may be trimmed and rewound.

The anti-counterfeiting film prepared according to the embodiment comprises a substrate layer, a separation layer, a graphic resin layer, a metal aluminum coating and a hot melt adhesive layer.

Example 2

(1) Designing holographic non-data image-text information through computer software, superposing and compounding data information digital codes, key digital codes, denoising anti-counterfeiting digital codes and a physical carrier copying verification model by using the computer software to generate an anti-counterfeiting data information image, and manufacturing the anti-counterfeiting data information image and the non-data image-text information into a comprehensive image, wherein the anti-counterfeiting data information and the non-data image-text information are alternately distributed, and the information contained in all the anti-counterfeiting data information images is the same;

(2) the plate roller with the condensed image is manufactured by a holographic plate making technology, and extinction processing is carried out on the background of the anti-counterfeiting data information image area so as to ensure that the plate roller cannot be read due to reflection in the reading process;

(3) uniformly coating a separation coating with a release force on a substrate layer by using a 200-mesh printing roller to form a separation layer, wherein the separation coating is an emulsified water-based wax layer, and the dry coating weight is 2.0g/m²The base material layer is a polyester film (BOPET) with the thickness of 30 mu m;

(4) coating a resin for generating laser holographic interference fringes on the separation layer by using a coater with a 200-mesh screen to form an image-text resin layer, wherein the thickness of the image-text resin layer is 2 mu m;

(5) setting the temperature to be 90-160 ℃, carrying out mould pressing on the image-text resin layer prepared in the step (4) by using the plate roller prepared in the step (2), wherein the indentation depth of the mould pressing grating is less than or equal to 1 mu m, and forming laser interference fringes with preset images and texts on the surface of the image-text resin layer;

(6) putting zinc sulfide solid into a vacuum coating machine, evaporating at high temperature to form a zinc sulfide film, namely a non-metal film coating, on the surface of the image-text resin layer by evaporation, wherein the thickness of the zinc sulfide layer is 200 nanometers;

(7) evaporating a metal aluminum film layer on the surface of the silicon dioxide layer by using a vacuum metal coating machine, wherein the thickness of the metal aluminum film layer is 650 nanometers;

(8) and coating a layer of hot melt adhesive on the surface of the metal aluminum layer by using a coating machine to form a hot melt adhesive layer.

After step (8), the product may be trimmed and rewound.

The anti-counterfeiting film prepared according to the embodiment comprises a substrate layer, a separation layer, a graphic resin layer, a metal aluminum coating and a hot melt adhesive layer.

The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.