Identification information carrier, anti-counterfeiting structure and manufacturing method

Abstract

The present invention relates to the technical field of anti-counterfeiting products, and specifically to an identification information carrier, an anti-counterfeiting structure and a manufacturing method. The identification information carrier is used to combine with the interior and / or surface of a target object to form an identification object of the target object, and the material on the surface of the identification information carrier includes a material containing a polar group. Depending on the distribution position of the identification information carrier inside or on the surface of the paper, the anti-counterfeiting paper can present different visual or other effects, such as fully or partially exposing the surface, or completely hiding inside the paper, so that the public can easily distinguish the authenticity. This effect cannot be achieved by printing and other methods, and the imitation cost is very high, and it has a good anti-counterfeiting effect. The identification information carrier and the anti-counterfeiting structure can be applied to items such as banknotes, securities, document certificates, tickets, trademarks and product packaging.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-counterfeiting products, and in particular to an identification information carrier, an anti-counterfeiting structure and a manufacturing method. Background Art

[0002] Anti-counterfeiting technology refers to measures taken to achieve the purpose of anti-counterfeiting. It can accurately identify the authenticity within a certain range and is not easily imitated or copied. Simply put, it is a technology to prevent counterfeiting and imitation. Anti-counterfeiting technology products are products made with anti-counterfeiting technology for the purpose of anti-counterfeiting and have anti-counterfeiting functions. In common use, "anti-counterfeiting" and "anti-counterfeiting technology" can be used interchangeably. In different environments, "anti-counterfeiting technology products" can also be simply referred to as anti-counterfeiting products, anti-counterfeiting products or anti-counterfeiting items.

[0003] There are many types of anti-counterfeiting technologies, mainly including printing anti-counterfeiting technology, chemical material anti-counterfeiting technology, physical anti-counterfeiting technology, digital information anti-counterfeiting technology, structure and packaging anti-counterfeiting technology, human body and biometric anti-counterfeiting technology, etc. In the field of paper anti-counterfeiting technology, watermark anti-counterfeiting, security thread anti-counterfeiting and color fiber anti-counterfeiting and other technical means have been widely used, but the information contained in the anti-counterfeiting marks used by these technical means is too single and cannot meet more stringent anti-counterfeiting requirements.

[0004] Therefore, a technical problem that needs to be solved urgently by those skilled in the art is to provide a more reliable paper anti-counterfeiting method. Summary of the invention

[0005] In order to solve the above technical problem or at least partially solve the above technical problem, the present invention provides an identification information carrier, an anti-counterfeiting structure and a manufacturing method.

[0006] In a first aspect, an identification information carrier is provided, which is used to combine inside and / or on the surface of a target object to form an identification object of the target object, and the material on the surface of the identification information carrier includes a material containing polar groups.

[0007] In a first possible implementation manner, the identification information carrier is made of a material containing polar groups.

[0008] In combination with the above possible implementation manners, in a second possible implementation manner, the material containing polar groups is a polymer resin containing polar groups.

[0009] In combination with the above possible implementations, in a third possible implementation, the polymer resin containing polar groups is one or a combination of two or more of water-based acrylic, carboxyl-modified water-based nitrile latex, styrene-butadiene latex, water-based styrene-acrylic latex, water-based polyurethane, water-based polyamide resin and rosin-modified water-based resin.

[0010] In combination with the above possible implementations, in a fourth possible implementation, the identification information carrier contains anti-counterfeiting material.

[0011] In combination with the above possible implementations, in a fifth possible implementation, the anti-counterfeiting material includes one or more of fluorescent material, infrared material, laser material, magnetic material, pearlescent powder, light-variable material, temperature-variable material and microchip.

[0012] In combination with the foregoing possible implementation manners, in a sixth possible implementation manner, the identification information carrier is transparent or translucent.

[0013] In combination with the above possible implementations, in a seventh possible implementation, the material of the identification information carrier includes one or more of calcium carbonate, titanium dioxide, barium sulfate, silicon dioxide, kaolin, lithopone, pigments and dyes.

[0014] In combination with the foregoing possible implementation manners, in an eighth possible implementation manner, an information mark is provided on the surface of the identification information carrier.

[0015] In combination with the foregoing possible implementations, in a ninth possible implementation, the identifier corresponding to the predetermined information is a graphic, a symbol, a text, a letter, a number, a QR code or a computer code.

[0016] In combination with the foregoing possible implementation manners, in a tenth possible implementation manner, the identification information carrier is a sheet-shaped structure and / or includes at least two sheet layers.

[0017] In combination with the above possible implementations, in an eleventh possible implementation, the thickness of the sheet structure is 15 to 200 μm, and / or the area of ​​the sheet structure is 0.1 to 400 mm 2 Preferably, the thickness of the sheet structure is 30 to 100 μm, and / or the area of ​​the sheet structure is 0.5 to 100 mm 2 .

[0018] In a second aspect, a method for manufacturing an identification information carrier is provided, wherein the identification information carrier is used to combine with a target object to form an identification object, and the material on the surface of the identification information carrier includes a material containing polar groups. The method includes: making a slurry from a mixture of the material containing polar groups and a filler; applying the slurry to a carrier surface to form a coating; drying the coating; cutting the dried coating into a predetermined shape and separating it from the carrier surface.

[0019] In a first possible implementation, an isolation layer is provided on the surface of the bearing surface, and the slurry is coated on the isolation layer so that the coating layer can be easily separated from the isolation layer.

[0020] In combination with the above possible implementation manners, in a second possible implementation manner, the isolation layer is a silicone oil layer, a wax layer or a water-soluble resin layer.

[0021] In combination with the above possible implementations, in a third possible implementation, it further includes printing information labels on the dried coating.

[0022] In combination with the above possible implementations, in a fourth possible implementation, the step of applying the slurry to the bearing surface to form a coating includes: applying the slurry to the bearing surface at least twice to form a coating.

[0023] In combination with the above possible implementations, in a fifth possible implementation, at least two coating operations use slurries of the same or different compositions.

[0024] In a third aspect, an anti-counterfeiting structure is provided, comprising a substrate having a predetermined thickness and width, wherein a plurality of identifiers are randomly distributed in the substrate, and the identifiers are any one of the identification information carriers described in the first aspect.

[0025] In a first possible implementation manner, a plurality of markers are distributed in the thickness direction of the substrate.

[0026] In combination with the above possible implementation manners, in a second possible implementation manner, the substrate includes at least two layers, and the plurality of markers are distributed in the at least two layers of the substrate.

[0027] In combination with the above possible implementations, in a third possible implementation, surfaces of some of the multiple markers are exposed on the substrate.

[0028] In combination with the foregoing possible implementations, in a fourth possible implementation, the multiple markers include at least two markers of different colors and / or at least two markers with different transparencies.

[0029] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the anti-counterfeiting paper can present different visual or other effects due to the different distribution positions of the identification information carrier inside or on the surface of the paper, such as fully or partially exposing the surface, or completely hiding inside the paper, making it extremely easy for the public to distinguish the authenticity. This effect cannot be achieved through printing and other methods, and the imitation cost is very high, and it has a good anti-counterfeiting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an identification information carrier in one embodiment of the present invention;

[0031] Figure 2 A schematic diagram of an anti-counterfeiting structure in one embodiment of the present invention;

[0032] Figure 3 for Figure 2 Schematic diagram of the front structure of the anti-counterfeiting structure;

[0033] Figure 4 for Figure 3 A schematic diagram of a cross section of the structure;

[0034] Figure 5 for Figure 4 A local enlarged schematic diagram in FIG.

[0035] Reference numerals:

[0036] 10, 10a, 10b, 10c-identification information carrier, 11-upper layer, 12-lower layer;

[0037] 100 - anti-counterfeiting structure, 110 - first layer, 111 - upper surface, 120 - second layer, 121 - lower surface. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0039] The identification information carrier provided by the present invention can be made into a variety of shapes. In the production process of a target object (anti-counterfeiting product) such as wrapping paper, multiple identification information carriers are added to the inside and / or surface of the target object to form a marker of the target object. The marker is randomly distributed inside and / or on the surface of the target object to form a unique arrangement, which can be used as a unique identifier in anti-counterfeiting measures. The identification information carrier provided by the present invention has a material containing polar groups on its surface, which is also called a hydrophilic group (group), including carboxylic acid group, sulfonic acid group, phosphoric acid group, amino group, quaternary ammonium group, hydroxyl group, carboxylate and block polyether. The polar groups in the material are hydrophilic, so that the carrier surface and the fibers in the target object are tightly and stably bonded. The overall insolubility of the identification information carrier and the hydrophilic surface contribute to the surface of the target object being flat and smooth, and the information carried by the identification information carrier is more stably maintained.

[0040] refer to Figure 1 , Figure 1It is a schematic diagram of the structure of the identification information carrier 10 in one embodiment of the present invention. In this embodiment, the identification information carrier 10 is a hexagonal sheet structure, and in some optional embodiments, it can also be a triangle, a quadrilateral, a star or an irregular shape. The identification information carrier 10 includes an upper layer 11 and a lower layer 12. The upper layer 11 includes a water-based acrylic resin and other fillers, and the lower layer 12 includes a carboxyl-modified water-based nitrile latex and fillers. Therefore, the entire outer surface of the identification information carrier 10 is hydrophilic, and can form a close contact with the pulp in the pulp, and it is not easy to generate bubbles between the pulp and the pulp. After drying, it can still be firmly combined with the pulp fibers and is not easy to wrinkle. In this embodiment, the upper layer 11 and the lower layer 12 are all made of hydrophilic materials, and in some optional embodiments, the upper layer 11 and the lower layer 12 can be the same substrate, and the surface of the substrate is coated with the same or different hydrophilic materials to form a hydrophilic coating, which can also achieve the above-mentioned technical effects.

[0041] In this embodiment, the thickness of the identification information carrier 10 is 100 μm, and the surface area of ​​one side is 200 mm 2 Of course, its thickness and area are not limited to the above values. Its thickness can also be any value between 15 and 200 μm, and its area can be 0.1 to 400 mm. 2 The preferred value range of thickness is 30 to 100 μm, and the preferred value range of area is 0.5 to 100 mm. 2 For example, its thickness can be 15 μm, 50 μm, 85 μm, 100 μm and 200 μm, and its area can be 0.1 mm 2 , 0.5mm 2 , 1mm 2 , 10mm 2 , 50mm 2 、155mm 2 、300mm 2 and 400mm 2 Equal values.

[0042] The polymer resin is insoluble in water, while the polymer resin with polar groups is hydrophilic and insoluble in water. When the surface material of the identification information carrier 10 is a hydrophilic polymer resin, the identification information carrier 10 can be better combined with paper fibers. In some other embodiments, the identification information carrier 10 can be made of one or a combination of two or more of styrene-butadiene latex, water-based styrene-acrylic latex, water-based polyurethane, water-based polyamide resin and rosin-modified water-based resin to make the identification information carrier 10 or to coat the surface of the identification information carrier 10.

[0043] Figure 1The identification information carrier 10 shown in the figure is a double-layer structure including an upper layer 11 and a lower layer 12. In some optional embodiments, the identification information carrier 10 can also be a single-layer structure, that is, the main body of the identification information carrier 10 is composed of only one mixed material, such as the whole is made of a mixture of carboxyl-modified water-based nitrile latex and a filler, or the paper-based main body is coated with carboxyl-modified water-based nitrile latex.

[0044] In some optional embodiments, the identification information carrier 10 contains anti-counterfeiting materials. When manufacturing the identification information carrier 10, anti-counterfeiting materials can also be added to the mixture of water-based polymer resins, and the identification information carrier 10 after molding contains anti-counterfeiting materials. For example, when the identification information carrier 10 contains fluorescent materials, the identification information carrier 10 can fluoresce under ultraviolet light; when the identification information carrier 10 contains temperature-variable materials, the identification information carrier 10 presents different colors at different temperatures. Of course, the choice of anti-counterfeiting materials is not limited to this, and can also be one or more of infrared materials, laser materials, magnetic materials, pearlescent powder, optically variable materials and microchips.

[0045] In other embodiments or optional embodiments, the identification information carrier 10 is transparent, semi-transparent or opaque. When the identification information carrier 10 is transparent, semi-transparent or opaque, it can form a watermark effect in a target object such as anti-counterfeiting paper, and a semi-transparent or opaque window can be seen through the paper. In addition, the watermark effect formed by the identification information carrier 10 is different from an ordinary watermark, because the position of the identification information carrier 10 on the paper is random and cannot be reproduced by printing or copying, and has a better anti-counterfeiting effect when applied to anti-counterfeiting products.

[0046] In other embodiments or optional embodiments, the hardness, transparency, color, specific gravity and strength of the identification information carrier 10 can be set according to actual needs, and the desired state can be obtained by changing the corresponding filler components in its ingredients. The filler includes, but is not limited to, one or more of calcium carbonate, titanium dioxide, barium sulfate, silicon dioxide, kaolin, lithopone, pigments and dyes. For example, when the identification information carrier 10 of different colors, transparencies and sizes is added to the anti-counterfeiting product of anti-counterfeiting paper, the difficulty and cost of imitation will be greatly increased, and the anti-counterfeiting effect will be better.

[0047] In other embodiments or optional embodiments, an information mark is provided on the surface of the identification information carrier 10. The information mark may correspond to predetermined information and may be read by general equipment, special equipment or directly manually, such as graphics, symbols, text, letters, numbers, QR codes, bar codes or computer codes.

[0048] The present invention also provides a method for manufacturing an identification information carrier, wherein the identification information carrier is used to combine with a target object to form an identification object, and the material on the surface of the identification information carrier includes a material containing a polar group. The target object may be banknotes, securities, document certificates, tickets, trademarks, and paper for product packaging.

[0049] Embodiment 1: Manufacturing of fluorescent marking information carrier.

[0050] Step 1: Add ammonia water and water to a solid water-based modified rosin resin with an acid value of 140-180 mgKOH / g, heat to 80° C. and keep warm until the solid water-based modified rosin resin is completely dissolved, cool and filter the solution, and finally prepare the product for use.

[0051] Step 2: Select water-based nitrile latex with a solid content of 40%, add defoamer and leveling agent, stir evenly, and set the product aside.

[0052] Step 3: Take 500 g of the water-based modified rosin resin liquid prepared in step 1, add 300 g of water, add 200 g of calcium carbonate with a fineness of 800-1000 μm, and stir evenly; add 1 kg of the water-based nitrile latex prepared in step 2, add an appropriate amount of water-based thickener, and adjust the viscosity to 40-50 seconds (apply to cup No. 4).

[0053] Step 4: an isolation layer is provided on the surface of the PET film, and the raw material prepared in step 3 is coated twice on the surface of the isolation layer by a coating machine to form a film with a thickness of 40 to 50 μm. In this embodiment, the isolation layer is a silicone oil layer, and the surface of the silicone oil layer is a bearing surface that can be coated with resin. The isolation layer can make it easier to separate the coating from the PET film and prevent adhesion from damaging the coating.

[0054] Step 5: After the coating layer applied on the PET film is dried, a pre-designed pattern is printed on the coating layer using colorless fluorescent ink. For example, a pattern, symbol, text, letter, number, QR code or computer code is printed on the coating layer. The printing method can be screen printing, offset printing, gravure printing, letterpress printing and flexible letterpress printing, and the ink used for printing is ordinary ink or anti-counterfeiting ink.

[0055] Step 6: Use a die-cutting machine to cut off the portion of the coating on which the pattern is printed, to obtain an identification information carrier, i.e., a sheet with an anti-counterfeiting function.

[0056] Embodiment 2: Manufacturing of temperature-variable identification information carrier.

[0057] Step 1: Select water-based polyurethane with a solid content of 40%, add defoamer and leveling agent, stir evenly and set aside.

[0058] Step 2: Select solid water-based acrylic resin, add ammonia and water, and stir the mixture until the resin is completely dissolved; then add polyacrylic acid emulsion, add water to adjust the viscosity, filter and set aside.

[0059] Step 3: Take 600g of the acrylic resin liquid prepared in step 2, add 200g of water and 200g of the temperature-change material, and disperse evenly with a disperser; then add 2kg of the water-based polyurethane prepared in step 1, add an appropriate amount of water-based thickener, and adjust the viscosity to 40-50 seconds (apply to cup No. 4).

[0060] Step 4: On the PET film with the prepared isolation layer, the material prepared in step 3 is coated on the isolation layer surface by a coating machine, the coating speed is 10m / s, the temperature is 80-90°C, the coating is repeated 2 times, and the film thickness is 50-60μm. In this embodiment, the isolation layer is a wax layer.

[0061] Step 5: After the coating on the PET film is dried, a pre-designed pattern is transferred onto the coating. The transfer method may be laser holographic film transfer, vacuum aluminum film transfer, polarization film transfer, and diffraction grating film transfer.

[0062] Step 6: Cut the patterned portion of the anti-counterfeiting film into a desired shape to obtain an identification information carrier, that is, a sheet with an anti-counterfeiting function. Specifically, a die-cutting machine or a roller cutter can be used for cutting.

[0063] In some optional embodiments, the isolation layer may also be a water-soluble resin layer.

[0064] In other optional embodiments, the dried coating can be directly cut into a predetermined shape without printing information labels.

[0065] In some other optional embodiments, coating is performed only once on the carrier surface to form a coating layer, the coating layer has a smaller thickness, and the identification information carrier finally produced has a smaller thickness.

[0066] In some other optional embodiments, two coating operations use two glues with different components, and the surface of the obtained identification information carrier can have different hydrophilicity.

[0067] The embodiment of the present invention further provides an anti-counterfeiting structure 100, referring to Figures 2 to 5 , Figure 2 and Figure 3 is a schematic diagram of an anti-counterfeiting structure 100 in one embodiment of the present invention; Figure 4 for Figure 3 A schematic diagram of a cross section of the structure; Figure 5 for Figure 4The anti-counterfeiting structure can be a multi-layer composite anti-counterfeiting paper, or a valuable paper such as a ticket and bill. In this embodiment, a double-layer composite anti-counterfeiting paper is used as an example for explanation.

[0068] In this embodiment, the anti-counterfeiting structure 100 includes a substrate and a plurality of identifiers. The substrate has a predetermined thickness and width. The plurality of identifiers are randomly distributed in the substrate. The identifiers may be any one or more of the identification information carriers in the aforementioned embodiments.

[0069] Specifically, the substrate includes a first sheet 110 and a second sheet 120, and the width and thickness thereof can be set according to actual needs. In the present embodiment, the thickness of the two sheets is the same, and in some optional embodiments, the two sheets can also have different thicknesses. A plurality of identification information carriers 10 are embedded in the first sheet 110 and the second sheet 120. The identification information carriers 10 are randomly distributed in the first sheet 110 and the second sheet 120, and are randomly arranged in the width and length directions of the substrate.

[0070] The thickness of the identification information carrier 10 is smaller than that of the first sheet layer 110 and the second sheet layer 120, and the identification information carrier 10 is also randomly arranged in the sheet layer thickness direction. Figure 5 In the first sheet 110, one surface of the identification information carrier 10a is flush with the upper surface 111 of the first sheet 110. In the second sheet 120, the identification information carrier 10b is completely surrounded by the structure of the first sheet 110, and one surface of the identification information carrier 10c is flush with the lower surface 121 of the second sheet 120. Of course, other identification information carriers in the first sheet 110 can also be completely embedded in the sheet. In addition, the identification information carrier shown in the figure is parallel to the paper surface. In some optional embodiments, the identification information carrier can also have a certain angle with the paper surface.

[0071] In this embodiment, the identification information carrier has different colors; in some optional embodiments, the identification information carrier has different transparencies; in other optional embodiments, the identification information carrier has different colors and different transparencies. In other optional embodiments, the identification information carrier has the same color, but the position of the identification information carrier in the thickness direction of the substrate is different, that is, different identification information carriers are at different distances from the surface of the substrate, so from the appearance, the color depth of the identification information carrier of the same color is also different.

[0072] In this embodiment, the identification objects formed by the multiple identification information carriers are distributed in the thickness direction of the substrate. In some optional embodiments, the identification objects can also be located on the same layer in the thickness direction.

[0073] In some optional embodiments, the substrate only includes the first sheet 110 and the identification information carrier therein. In some optional embodiments, the identification objects are completely embedded in the sheet.

[0074] Manufacturing process of anti-counterfeiting paper: Soak the prepared identification information carrier in water in a container for 2 hours, add it to the pulp, stir it evenly, put it into the headbox of the paper machine, and then paper containing the identification information carrier can be made. The identification information carrier is randomly distributed.

[0075] Application Example 1: Application of identification information carrier in multi-layer composite anti-counterfeiting paper

[0076] On a papermaking machine with three or more rotary screens, a pulp containing pearlescent anti-counterfeiting sheets is added to the headbox of the last rotary screen; a pulp containing a colorless fluorescent identification information carrier is added to the headbox of the middle rotary screen; a pulp containing a temperature-variable identification information carrier is added to the headbox of the first rotary screen, so that each layer of the paper produced contains anti-counterfeiting information with different effects.

[0077] Application Example 2: Application of anti-counterfeiting paper in anti-counterfeiting printing

[0078] By using the anti-counterfeiting paper prepared in Application Example 1 to print tickets and other documents, the public can easily see the anti-counterfeiting information therein, which is an effect that cannot be achieved by printing.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An identification information carrier, used to combine inside and / or on the surface of a target object to form a target object identification object, characterized in that: The material on the surface of the identification information carrier includes a material containing polar groups; The material containing polar groups is a polymer resin containing polar groups; Wherein, the polymer resin containing polar groups is one or a combination of two or more of water-based acrylic acid, carboxyl-modified water-based nitrile latex, styrene-butadiene latex, water-based styrene-acrylic latex, water-based polyurethane, water-based polyamide resin and rosin-modified water-based resin; The identification information carrier is a sheet-like structure and / or comprises at least two sheets; The thickness of the sheet structure is 15-200 μm, and / or the area of ​​the sheet structure is 0.1-400 mm 2 ; The method for manufacturing the identification information carrier comprises: Forming the polar group-containing material and filler mixture into a slurry; Applying the slurry to a bearing surface to form a coating; drying the coating; Cutting the dried coating into a predetermined shape and separating it from the surface of the bearing surface; Wherein, an isolation layer is provided on the surface of the bearing surface, and the slurry is coated on the isolation layer so that the coating layer can be easily separated from the isolation layer; Wherein, the step of applying the slurry to the bearing surface to form a coating comprises: applying the slurry to the bearing surface at least twice to form the coating; The method further comprises printing information on the dried coating.

2. The identification information carrier according to claim 1, characterized in that: The identification information carrier is made of the material containing polar groups.

3. The identification information carrier according to claim 1, characterized in that: The identification information carrier contains anti-counterfeiting material.

4. The identification information carrier according to claim 3, characterized in that: The anti-counterfeiting material includes one or more of fluorescent material, infrared material, laser material, magnetic material, pearlescent powder, light-variable material, temperature-variable material and microchip.

5. The identification information carrier according to claim 1, characterized in that In the present invention, the identification information carrier is transparent, translucent or opaque.

6. The identification information carrier according to claim 2, characterized in that In the invention, the material of the identification information carrier includes one or more of calcium carbonate, titanium dioxide, barium sulfate, silicon dioxide, kaolin, lithopone, pigment and dye.

7. The identification information carrier according to claim 1, characterized in that: An information mark is arranged on the surface of the mark information carrier.

8. The identification information carrier according to claim 7, characterized in that: The identifier corresponding to the predetermined information is a graphic, a symbol, a text, a letter, a number, a QR code or a computer code.

9. The identification information carrier according to claim 1, characterized in that: The thickness of the sheet structure is 30-100 μm, and / or the area of ​​the sheet structure is 0.5-100 mm 2 .

10. A method for manufacturing an identification information carrier, characterized in that: The identification information carrier is used to combine with the target object to form an identification object, and the material on the surface of the identification information carrier includes a material containing a polar group. The method comprises: Forming the polar group-containing material and filler mixture into a slurry; Applying the slurry to a bearing surface to form a coating; drying the coating; Cutting the dried coating into a predetermined shape and separating it from the surface of the bearing surface; Wherein, an isolation layer is provided on the surface of the bearing surface, and the slurry is coated on the isolation layer so that the coating layer can be easily separated from the isolation layer; The step of applying the slurry to the bearing surface to form a coating comprises: applying the slurry to the bearing surface at least twice to form the coating; The method further comprises printing information identification on the dried coating; The material containing polar groups is a polymer resin containing polar groups; The polymer resin containing polar groups is one or a combination of two or more of water-based acrylic acid, carboxyl-modified water-based nitrile latex, styrene-butadiene latex, water-based styrene-acrylic latex, water-based polyurethane, water-based polyamide resin and rosin-modified water-based resin.

11. The method according to claim 10, characterized in that The isolation layer is a silicone oil layer, a wax layer or a water-soluble resin layer.

12. The method according to claim 10, characterized in that The at least two coating operations use slurries of the same or different compositions.

13. An anti-counterfeiting structure, comprising a substrate, characterized in that: The substrate has a predetermined thickness and width, and a plurality of identifiers are randomly distributed in the substrate, and the identifiers are identification information carriers as described in any one of claims 1-9.

14. The anti-counterfeiting structure according to claim 13, characterized in that: The plurality of markers are distributed in the thickness direction of the substrate.

15. The anti-counterfeiting structure according to claim 14, characterized in that: The substrate includes at least two layers, and the plurality of markers are distributed within the at least two layers of the substrate.

16. The anti-counterfeiting structure according to claim 14, characterized in that: Some of the markers have surfaces exposed on the substrate.

17. The anti-counterfeiting structure according to claim 13, characterized in that: The multiple markers include at least two markers of different colors and / or at least two markers of different transparencies.

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