Invisible anti-counterfeiting label and its production method and invisible anti-counterfeiting corrugated paper box

Abstract

The present invention belongs to the technical field of anti-counterfeiting label production, and particularly relates to an invisible anti-counterfeiting label and a production method thereof and an invisible anti-counterfeiting corrugated paperboard box. The production method of the invisible anti-counterfeiting label comprises the following steps: S100: coating and forming a microfibrillated cellulose layer on the surface of the corrugated paperboard; S200: printing an NFC tag on the surface of the microfibrillated cellulose layer; S300: printing a base oil layer on the surface of the NFC tag; S400: printing a color layer on the surface of the base oil layer; S500: first printing an ultraviolet fluorescent anti-counterfeiting ink layer on the surface of the color layer, and then printing a pressure-sensitive anti-counterfeiting ink layer on the surface of the ultraviolet fluorescent anti-counterfeiting ink layer, and making the invisible coding information on the pressure-sensitive anti-counterfeiting ink layer staggered with the invisible fluorescent pattern on the ultraviolet fluorescent anti-counterfeiting ink layer. In the present invention, the production of the invisible anti-counterfeiting label can be achieved by printing, which is simple and convenient, and the invisible anti-counterfeiting label after forming has high security.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-counterfeiting label production, and in particular relates to an invisible anti-counterfeiting label and a production method thereof, and an invisible anti-counterfeiting corrugated paper box. Background Art

[0002] As corrugated boxes are increasingly used in sales packaging, there is an increasing demand for their functions, among which anti-counterfeiting is a technical problem that needs to be solved. At present, QR code technology, as the core sensing technology of the Internet of Things and an important information portal of the Internet, is developing rapidly and has gradually penetrated into various fields of national economy and social life. Although QR codes are usually printed on the outside of the packaging of items nowadays, QR code anti-counterfeiting still needs to be affixed to the product in the form of a sticker. The current technology cannot be directly printed on the packaging, and the production process is complicated; moreover, the existing QR code anti-counterfeiting is easy to be copied, which poses a security risk. Summary of the invention

[0003] The purpose of the present invention is to provide an invisible anti-counterfeiting label and a production method thereof and an invisible anti-counterfeiting corrugated paper box, aiming to solve the technical problems in the prior art that the two-dimensional code anti-counterfeiting technology produced on the paper box has a complicated production process and poor security.

[0004] To achieve the above object, an embodiment of the present invention provides a method for making an invisible anti-counterfeiting label, comprising the following steps:

[0005] S100: coating a formed microfibrillated cellulose layer on the surface of the corrugated paperboard;

[0006] S200: printing an NFC tag on the surface of the microfibrillated cellulose layer;

[0007] S300: Printing a primer layer on the surface of the NFC tag;

[0008] S400: printing a color layer on the surface of the base oil layer;

[0009] S500: firstly printing an ultraviolet fluorescent anti-counterfeiting ink layer on the surface of the color layer, and then printing a pressure-sensitive anti-counterfeiting ink layer on the surface of the ultraviolet fluorescent anti-counterfeiting ink layer, and making the invisible coding information on the pressure-sensitive anti-counterfeiting ink layer staggered with the invisible fluorescent pattern on the ultraviolet fluorescent anti-counterfeiting ink layer.

[0010] Preferably, in the step S100, the thickness of the microfibrillated cellulose layer is in the range of 35 μm to 70 μm.

[0011] Preferably, after step S500, the method further includes step S600: pasting a protective film on the surface of the corrugated board through a laminating process.

[0012] Preferably, in the step S600, the thickness of the protective film is in the range of 20 μm to 40 μm.

[0013] Preferably, in the step S600, the protective film is a polypropylene film.

[0014] Preferably, in the step S500, the ultraviolet fluorescent anti-counterfeiting ink layer can present a clear and bright invisible fluorescent pattern when irradiated with ultraviolet light of a specified wavelength.

[0015] Preferably, in the step S500, the pressure-sensitive anti-counterfeiting ink layer can present invisible coded information through friction or pressing.

[0016] The above one or more technical solutions in the method for making invisible anti-counterfeiting labels provided by the embodiments of the present invention have at least one of the following technical effects: after the invisible anti-counterfeiting labels made on the surface of the corrugated cardboard present two kinds of anti-counterfeiting information, namely invisible fluorescent patterns and invisible coding information, by ultraviolet irradiation and pressing, the next step is to bring a mobile terminal such as a mobile phone with NFC function close to the anti-counterfeiting label to read the anti-counterfeiting area of ​​the NFC tag, and match and verify the invisible coding information presented by the pressure-sensitive anti-counterfeiting ink layer with the background coding information. Only when the invisible fluorescent pattern and invisible coding information appear and the invisible coding information verification is successful, it is true, otherwise it is false. In this way, the production of invisible anti-counterfeiting labels can be achieved by printing, which is simple and convenient, and the formed invisible anti-counterfeiting labels are highly secure.

[0017] Another embodiment of the present invention provides an invisible anti-counterfeiting label, which includes a microfibrillated cellulose layer, an NFC tag, a primer layer, a color layer, an ultraviolet fluorescent anti-counterfeiting ink layer and a pressure-sensitive anti-counterfeiting ink layer connected in sequence, and the invisible coded information on the pressure-sensitive anti-counterfeiting ink layer is staggered with the invisible fluorescent pattern on the ultraviolet fluorescent anti-counterfeiting ink layer.

[0018] Preferably, the microfibrillated cellulose layer has a thickness ranging from 35 μm to 70 μm.

[0019] The above one or more technical solutions in the invisible anti-counterfeiting label provided by the embodiment of the present invention have at least one of the following technical effects: in the invisible anti-counterfeiting label of the present invention, the invisible anti-counterfeiting label can only present two anti-counterfeiting information, the invisible fluorescent pattern and the invisible coding information, through ultraviolet irradiation and pressing, and it is also necessary to bring a mobile terminal such as a mobile phone with NFC function close to the anti-counterfeiting label to read the anti-counterfeiting area of ​​the NFC tag, and match and verify the invisible coding information presented by the pressure-sensitive anti-counterfeiting ink layer with the background coding information. Only when the invisible fluorescent pattern and the invisible coding information appear and the invisible coding information verification is successful, it is true, otherwise it is false, and the anti-counterfeiting security is very high.

[0020] Another embodiment of the present invention provides an invisible anti-counterfeiting corrugated paper box, comprising a box body made of corrugated paperboard, on which an invisible anti-counterfeiting label is formed by the invisible anti-counterfeiting label manufacturing method described above.

[0021] The above one or more technical solutions in the invisible anti-counterfeiting corrugated paper box provided by the embodiment of the present invention have at least one of the following technical effects: since the above invisible anti-counterfeiting label is provided on the corrugated paper board of the invisible anti-counterfeiting corrugated paper box, the anti-counterfeiting security can be greatly improved by the invisible anti-counterfeiting label; and the invisible anti-counterfeiting label can be produced on the corrugated paper board of the invisible anti-counterfeiting corrugated paper box by printing, and the production method is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A flowchart of a method for making an invisible anti-counterfeiting label provided by an embodiment of the present invention.

[0024] Figure 2 A cross-sectional view of the connection between the invisible anti-counterfeiting label and the corrugated cardboard provided by an embodiment of the present invention.

[0025] Figure 3 A schematic structural diagram of an invisible anti-counterfeit corrugated paper box provided in an embodiment of the present invention.

[0026] Among them, the reference numerals in the figure are:

[0027] 10—Box 11—Corrugated cardboard 20—Invisible anti-counterfeiting label

[0028] 21—Microfibrillated cellulose layer 22—NFC tag 23—Base oil layer

[0029] 24—color layer 25—ultraviolet fluorescent anti-counterfeiting ink layer 26—pressure-sensitive anti-counterfeiting ink layer

[0030] 27—protective film 111—corrugated inner paper layer 112—corrugated core paper layer

[0031] 113—Corrugated paper layer. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 3 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0036] In one embodiment of the present invention, Figures 1-2 As shown, a method for making an invisible anti-counterfeiting label is provided, comprising the following steps:

[0037] S100: coating and forming a microfibrillated cellulose layer 21 on the surface of the corrugated paperboard 11; wherein microfibrillated cellulose is a widely available, inexpensive and abundant, degradable nano-scale cellulose functional material, which is non-toxic and harmless to the environment and easy to recycle; in addition, microfibrillated cellulose has a high degree of crystallinity and has a good filling effect on paper. After being coated with micro-nano cellulose, the surface properties and mechanical properties of the paper are improved; specifically, coating the microfibrillated cellulose can be performed during the corrugated paper forming process;

[0038] S200: Printing the NFC tag 22 on the surface of the microfibrillated cellulose layer 21; this step can be achieved by UV printing process, because the microfibrillated cellulose layer 21 formed in step S100 can be used to enhance the surface strength, surface flatness and surface smoothness of the corrugated board 11, so that the NFC tag 22 can be better printed, solving the problem that the rough surface of the corrugated board 11 has poor printing effect and affects the performance of the NFC tag 22;

[0039] S300: Printing a primer layer 23 on the surface of the NFC tag 22; this step can be achieved by screen printing, because the microfibrillated cellulose layer 21 formed in step S100 ensures uniform transfer of ink, so that during flexographic printing, the printing plate has a more uniform contact pressure when contacting the surface paper of the corrugated board 11, which promotes more uniform ink transfer and better coloring; further, the offset plate and the NFC tag 22 screen plate can be made according to the specifications of the required printing pattern and the anti-counterfeiting invisible graphic printing area;

[0040] S400: Printing a color layer 24 on the surface of the base oil layer 23; the color layer 24 is realized by an offset printing process, which simplifies the production process and improves the production efficiency;

[0041] S500: firstly print an ultraviolet fluorescent anti-counterfeiting ink layer 25 on the surface of the color layer 24 , and then print a pressure-sensitive anti-counterfeiting ink layer 26 on the surface of the ultraviolet fluorescent anti-counterfeiting ink layer 25 , and make the invisible coding information on the pressure-sensitive anti-counterfeiting ink layer 26 staggered with the invisible fluorescent pattern on the ultraviolet fluorescent anti-counterfeiting ink layer 25 .

[0042] In the method for making the invisible anti-counterfeiting label provided by the embodiment of the present invention, after the invisible anti-counterfeiting label 20 made on the surface of the corrugated cardboard 11 presents two kinds of anti-counterfeiting information, namely, invisible fluorescent pattern and invisible coding information, by ultraviolet irradiation and pressing, the next step is to bring a mobile terminal such as a mobile phone with NFC function close to the anti-counterfeiting label to read the anti-counterfeiting area of ​​the NFC tag 22, and match and verify the invisible coding information presented by the pressure-sensitive anti-counterfeiting ink layer 26 with the background coding information. Only when the invisible fluorescent pattern and invisible coding information appear and the invisible coding information verification is successful, it is true, otherwise it is false. In this way, the production of the invisible anti-counterfeiting label 20 can be achieved by printing, which is simple and convenient, and the formed invisible anti-counterfeiting label 20 has high security.

[0043] Furthermore, after the step S500, the method further includes step S600: pasting the protective film 27 on the surface of the corrugated board 11 through a laminating process. The NFC tag 22 is directly printed on the corrugated board 11 coated with the microfibrillated cellulose layer 21 by screen printing, and a primer layer 23 is printed on the corrugated board 11 printed with the NFC tag 22 to fill the NFC tag 22 and ensure that the surface of the corrugated board 11 has a high smoothness. Then the color layer 24 and two anti-counterfeiting layers are printed. Finally, the outermost protective film 27 can well protect the integrity of the invisible image and present the image information through the physical stability, mechanical strength, good air tightness, high transparency and glossiness, toughness and wear resistance of the protective film 27. Finally, the protective film 27 is pasted on the surface of the corrugated board 11 through a laminating process.

[0044] Compared with the QR code anti-counterfeiting technology of the prior art, the invisible anti-counterfeiting label 20 produced by the method for producing the invisible anti-counterfeiting label provided in the embodiment of the present invention has a higher safety factor, is invisible to the human eye, and is very active during use, but the invisible symbol can only be read by professional equipment.

[0045] In this embodiment, in the step S100, the thickness of the microfibrillated cellulose layer 21 is in the range of 35 μm to 70 μm. Specifically, the thickness of the microfibrillated cellulose layer 21 can be 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm or 70 μm, etc. The microfibrillated cellulose layer 21 with this thickness range is sufficient to fill the rough surface on the surface of the corrugated board 11, and will not be too thick to cause the entire invisible anti-counterfeiting label 20 to protrude too much from the corrugated board 11 and easily interfere with foreign objects.

[0046] In this embodiment, in step S600, the thickness of the protective film 27 is in the range of 20 μm to 40 μm. Specifically, the thickness of the protective film 27 can be 20 μm, 25 μm, 30 μm, 35 μm or 40 μm. The provision of the protective film 27 can protect the entire anti-counterfeiting label from being damaged by friction or contact with foreign objects, thereby ensuring the integrity of the entire anti-counterfeiting label structure.

[0047] In this embodiment, in step S600, the protective film 27 is a polypropylene film. The polypropylene film is made by coextruding polypropylene particles into a sheet and then biaxially stretching in both the longitudinal and transverse directions. Due to the orientation of the stretched molecules, the film has good physical stability, mechanical strength, and air tightness, high transparency and gloss, and is tough and wear-resistant.

[0048] In this embodiment, in the step S500, the ultraviolet fluorescent anti-counterfeiting ink layer 25 can present a clear and bright invisible fluorescent pattern by irradiating ultraviolet light of a specified wavelength. Without irradiating ultraviolet light of a specified wavelength, the invisible fluorescent pattern of the ultraviolet fluorescent anti-counterfeiting ink layer 25 cannot be displayed, and the invisible anti-counterfeiting technology formed in this way will have a higher safety factor and a better protective function.

[0049] In this embodiment, in step S500, the pressure-sensitive anti-counterfeiting ink layer 26 can present invisible coded information by friction or pressing. Without friction or pressing, invisible coded information cannot be presented, and the invisible anti-counterfeiting technology formed in this way has a higher safety factor and a better protection function.

[0050] In summary, the method for making an invisible anti-counterfeit label provided in this embodiment has at least the following advantages:

[0051] First, during the forming process of the corrugated board 11, a microfibrillated cellulose layer 21 is coated on the surface paper to enhance the surface strength, surface flatness and surface smoothness of the corrugated board 11, so that the contact pressure during flexographic printing is more uniform, and the uniform transfer of ink and accurate color registration are ensured, thereby solving the problem of poor performance of the NFC tag 22 when directly printing on the corrugated box;

[0052] Second, the combination of double invisible patterns and information coding anti-counterfeiting is not easy to be copied and has a better anti-counterfeiting effect;

[0053] Third, the addition of NFC function makes it easy to verify authenticity without the need for professional equipment, making it easy to use and promote.

[0054] Fourth, all processes are basically completed by printing directly on the packaging, which improves efficiency and saves costs.

[0055] like Figure 2As shown, another embodiment of the present invention provides an invisible anti-counterfeiting label 20, which includes a microfibrillated cellulose layer 21, an NFC tag 22, a base oil layer 23, a color layer 24, an ultraviolet fluorescent anti-counterfeiting ink layer 25 and a pressure-sensitive anti-counterfeiting ink layer 26 connected in sequence, and the invisible coding information on the pressure-sensitive anti-counterfeiting ink layer 26 is staggered with the invisible fluorescent pattern on the ultraviolet fluorescent anti-counterfeiting ink layer 25. Specifically, in the invisible anti-counterfeiting label 20 of the present invention, only by ultraviolet irradiation and pressing can the invisible anti-counterfeiting label 20 present two kinds of anti-counterfeiting information, the invisible fluorescent pattern and the invisible coding information, and it is also necessary to bring a mobile terminal such as a mobile phone with an NFC function close to the anti-counterfeiting label to read the anti-counterfeiting area of ​​the NFC tag 22, and match and verify the invisible coding information presented by the pressure-sensitive anti-counterfeiting ink layer 26 with the background coding information. Only when the invisible fluorescent pattern and the invisible coding information appear and the invisible coding information verification is successful, it is true, otherwise it is false, and the anti-counterfeiting security is very high.

[0056] like Figure 3 As shown, another embodiment of the present invention provides an invisible anti-counterfeiting corrugated paper box, comprising a box body 10 made of corrugated paperboard 11, on which an invisible anti-counterfeiting label 20 is formed by the above-mentioned invisible anti-counterfeiting label manufacturing method. Specifically, since the above-mentioned invisible anti-counterfeiting label 20 is provided on the corrugated paperboard 11 of the invisible anti-counterfeiting corrugated paper box, the anti-counterfeiting security can be greatly improved by the invisible anti-counterfeiting label 20; and the invisible anti-counterfeiting label 20 can be formed on the corrugated paperboard 11 of the invisible anti-counterfeiting corrugated paper box by printing, and the manufacturing method is simple and convenient.

[0057] Furthermore, if Figure 2 As shown, the corrugated paperboard 11 includes a stacked corrugated inner paper layer 111 , a corrugated core paper layer 112 , and a corrugated face paper layer 113 , wherein the microfibrillated cellulose layer 21 is formed on the surface of the corrugated face paper layer 113 .

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for making an invisible anti-counterfeiting label, characterized in that: The following steps are involved: S100: coating a microfibrillated cellulose layer on the surface of the corrugated paperboard, wherein the coating of the microfibrillated cellulose is performed during the corrugated paper forming process; S200: printing an NFC tag on the surface of the microfibrillated cellulose layer; S300: Printing a primer layer on the surface of the NFC tag; S400: printing a color layer on the surface of the base oil layer; S500: firstly printing an ultraviolet fluorescent anti-counterfeiting ink layer on the surface of the color layer, and then printing a pressure-sensitive anti-counterfeiting ink layer on the surface of the ultraviolet fluorescent anti-counterfeiting ink layer, and making the invisible coding information on the pressure-sensitive anti-counterfeiting ink layer and the invisible fluorescent pattern on the ultraviolet fluorescent anti-counterfeiting ink layer staggered; In the step S100, the thickness of the microfibrillated cellulose layer is in the range of 35 μm to 70 μm. The microfibrillated cellulose layer in this thickness range is sufficient to fill the rough surface on the surface of the corrugated board.

2. The method for making an invisible anti-counterfeit label according to claim 1, characterized in that: After step S500, the method further includes step S600: pasting a protective film on the surface of the corrugated paperboard through a laminating process.

3. The method for making an invisible anti-counterfeit label according to claim 2, characterized in that: In the step S600 , the thickness of the protective film is in the range of 20 μm to 40 μm.

4. The method for making an invisible anti-counterfeit label according to claim 2, characterized in that: In the step S600, the protective film is a polypropylene film.

5. The method for making an invisible anti-counterfeit label according to any one of claims 1 to 4, characterized in that: In the step S500, the ultraviolet fluorescent anti-counterfeiting ink layer can present a clear and bright invisible fluorescent pattern by being irradiated with ultraviolet light of a specified wavelength.

6. The method for making an invisible anti-counterfeit label according to any one of claims 1 to 4, characterized in that: In the step S500, the pressure-sensitive anti-counterfeiting ink layer can present invisible coded information through friction or pressing.

7. An invisible anti-counterfeiting corrugated paper box, comprising a box body made of corrugated paperboard, characterized in that: The corrugated paperboard is provided with an invisible anti-counterfeiting label manufactured by the method for manufacturing the invisible anti-counterfeiting label according to any one of claims 1 to 6.

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