CN108564153B - Anti-counterfeiting code labels and anti-counterfeiting systems - Google Patents
Anti-counterfeiting code labels and anti-counterfeiting systems Download PDFInfo
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- CN108564153B CN108564153B CN201810386111.9A CN201810386111A CN108564153B CN 108564153 B CN108564153 B CN 108564153B CN 201810386111 A CN201810386111 A CN 201810386111A CN 108564153 B CN108564153 B CN 108564153B
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/0614—Constructional details the marking being selective to wavelength, e.g. color barcode or barcodes only visible under UV or IR
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Abstract
本发明涉及一种防伪码标签和防伪系统，该防伪码标签包括：基层和印刷在所述基层上的防伪码；所述防伪码包括标准码和干扰码，所述标准码和所述干扰码在可见光下呈现为一体，并且所述干扰码在激发光源照射下产生可见荧光。本发明的防伪码标签方便识别真伪，成本低廉。
The invention relates to an anti-counterfeiting code label and an anti-counterfeiting system. The anti-counterfeiting code label comprises: a base layer and an anti-counterfeiting code printed on the base layer; the anti-counterfeiting code includes a standard code and an interference code, the standard code and the interference code It appears as a whole under visible light, and the interference code produces visible fluorescence under the illumination of the excitation light source. The anti-counterfeiting code label of the invention is convenient to identify authenticity and has low cost.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting code label and an anti-counterfeiting system.
Background
The existing two-dimensional codes, bar codes and the like increasingly enter the lives of people, and the two-dimensional codes or the bar codes are provided on a plurality of products to provide corresponding product information, so that people can obtain the product information by scanning the two-dimensional codes or the bar codes, and even can determine the authenticity of the products.
Such as those of popular games that have a high value and are available for purchase through a game or at a game store, or of course, are repurchased by the game store. The cards are usually printed with two-dimensional codes to confirm the information related to the cards, however, due to the high value of the cards, the cards may be counterfeited by lawless persons, and the existing two-dimensional codes are also easy to be counterfeited.
Therefore, there is an urgent need for a simple, effective, and cost-effective anti-counterfeiting method to prevent counterfeiting by illegal molecules in such applications.
Disclosure of Invention
In view of the above, the present invention provides a new anti-counterfeit code label and an anti-counterfeit system.
One embodiment of the present invention provides an anti-counterfeit code label, including: a base layer and an anti-counterfeiting code printed on the base layer;
the anti-counterfeiting code comprises a standard code and an interference code, the standard code and the interference code are integrated under visible light, and the interference code generates visible fluorescence under the irradiation of an excitation light source.
In the above anti-counterfeit code label, the interference code includes a black ink layer and a colorless ink layer, the black ink layer and the colorless ink layer are sequentially stacked on the base layer, and the colorless ink layer generates visible fluorescence under irradiation of an excitation light source.
In the above anti-counterfeit code label, the colorless ink layer is formed by invisible infrared ink and/or invisible ultraviolet ink.
In the above-mentioned anti-counterfeit code label, the scrambling code is formed of black infrared ink including infrared-excited phosphor and/or black ultraviolet ink including ultraviolet-excited phosphor.
In the above anti-counterfeit code label, the particle size of the infrared excitation fluorescent powder or the ultraviolet excitation fluorescent powder is 100-200 nm.
In the anti-counterfeiting code label, the weight percentage of the infrared excitation fluorescent powder in the black infrared ink is 10-40%.
In the anti-counterfeiting code label, the particle size of the infrared excitation fluorescent powder is 150-180 nm; the weight percentage of the infrared excitation fluorescence in the black infrared ink is 30-35%.
In the above-described anti-counterfeit code label, the black infrared ink includes a urethane resin as a film-forming resin.
In the anti-counterfeiting code label, the weight percentage of the polyurethane resin in the black infrared ink is 5-20%.
In the above anti-counterfeit code label, the anti-counterfeit code label is a two-dimensional code label or a bar code label.
Another embodiment of the present invention provides an anti-counterfeiting system, comprising: the anti-counterfeiting code label and the exciting light irradiation device;
the anti-counterfeiting code label comprises a base layer and an anti-counterfeiting code printed on the base layer; the anti-counterfeiting code comprises a standard code and an interference code, the standard code and the interference code are integrated under visible light, and the interference code generates visible fluorescence under the irradiation of an excitation light source;
the excitation light irradiation device comprises an infrared ray emitter and/or an ultraviolet ray emitter.
In the above anti-counterfeiting system, the excitation light irradiation device comprises an infrared emitter, and the anti-counterfeiting system further comprises a visible light emitter, wherein the color of light emitted by the visible light emitter is consistent with the color of the visible fluorescence.
The anti-counterfeiting code label and the anti-counterfeiting system have low production cost, and can simply and quickly identify the authenticity of the corresponding commodity.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention. Like components are numbered similarly in the various figures.
Fig. 1 shows a schematic diagram of an example of a normal two-dimensional code.
Fig. 2 is a schematic diagram illustrating an example of an anti-counterfeit two-dimensional code including the normal two-dimensional code shown in fig. 1.
Fig. 3 is a schematic diagram illustrating an interference code in the anti-counterfeit two-dimensional code shown in fig. 2.
Fig. 4 shows a schematic diagram of the anti-counterfeiting two-dimensional code shown in fig. 2 under infrared irradiation.
Detailed Description
In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Hereinafter, the terms "including", "having", and their derivatives, which may be used in various embodiments of the present invention, are only intended to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be construed as first excluding the existence of, or adding to, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, which may include a, may include B, or may include both a and B.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "lateral", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are used in a broad sense, and for example, they may be mechanically connected, they may be connected through the inside of two elements, they may be directly connected, they may be indirectly connected through an intermediate, and those skilled in the art may understand the specific meaning of the above terms according to specific situations. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
One embodiment of the present invention provides an anti-counterfeiting code label, which may include a base layer and an anti-counterfeiting code printed on the base layer.
The anti-counterfeiting label can be a label formed by directly printing an anti-counterfeiting code on the product or the outer package of the product, and the product or the outer package of the product is the base layer; it is also possible to form the anti-counterfeiting code on, for example, a label sticker, which is then a substrate as described above, and then to adhere the individual label sticker to the product or product packaging.
The anti-counterfeiting code can be various identification codes comprising characters and/or images, such as two-dimensional codes, bar codes and the like, the two-dimensional codes and the bar codes are more commonly used, the two-dimensional codes are mainly taken as an example for explanation, and obviously, the explanation is also suitable for the identification codes such as the bar codes.
The anti-counterfeiting code comprises a standard code and an interference code, wherein the standard code and the interference code are integrated under visible light, and the interference code generates visible fluorescence under the irradiation of an excitation light source.
Referring to fig. 1 to 4, fig. 1 shows an example of a normal two-dimensional code. When the two-dimensional code is scanned by using code scanning tools such as a mobile terminal, the related information of the two-dimensional code can be normally acquired. The anti-counterfeiting code comprises a standard code, for example, a normal two-dimensional code shown in fig. 1, and specific information of related commodities, such as manufacturers, specifications, models and the like, can be obtained after reading.
In addition, an interference code, such as the interference point shown in fig. 3, is also included, and the anti-counterfeiting two-dimensional code of the invention is formed by combining the standard code shown in fig. 1, as shown in fig. 2. Since the standard code and the interference code have the same color under the irradiation of visible light (such as sunlight, sunlight light and LED light), which is shown as black in the figure, naked eyes or a two-dimensional code reader cannot distinguish which of the anti-counterfeiting codes are normal two-dimensional codes and which are interference points. Therefore, under irradiation of visible light, the relevant information cannot be acquired.
The interference code of the present invention emits visible fluorescence under the irradiation of the excitation light source, as shown in fig. 4. Therefore, the two-dimensional code reader can not only acquire reflected light from blank areas in and around the two-dimensional code, but also acquire excited fluorescence from the interference code, so that the two-dimensional code reader such as a mobile terminal can normally read the two-dimensional code to acquire related information.
The interference code can comprise a black ink layer and a colorless ink layer, wherein the black ink layer and the colorless ink layer are sequentially stacked on the base layer, and the colorless ink layer generates visible fluorescence under the irradiation of an excitation light source.
The black ink layer can be formed by using conventional ink for printing standard codes, and the colorless ink layer can be formed by using invisible infrared ink or invisible ultraviolet ink.
The invisible ultraviolet ink can be ink which emits visible light (400-800nm) by irradiation excitation of ultraviolet (200-400 nm). The invisible ultraviolet ink is colorless and transparent in normal state, and can display red, yellow, green, blue and other colors under the irradiation of an ultraviolet lamp. For example, Y4-100 UV ink from Guanchuangyi scientific and technical Co., Ltd, which is colorless in appearance and exhibits green color when irradiated with 365nm fluorescence or the like, may be used; the Y4-101 ultraviolet ink is colorless in appearance and can show red color when irradiated with 365nm fluorescent lamp.
The invisible infrared excitation ink is colorless and invisible in a normal state, and can show different colors such as red, green, blue, yellow and the like under the irradiation of an excitation light source. Dyes in inks need to be strongly absorbing to infrared light and also have good color fastness, heat resistance, and chemical resistance. The phthalocyanine, naphthalocyanine, aromatic amine and methine dyes are all compounds suitable for preparing the invisible infrared ink, and the solvent for preparing the invisible infrared ink can adopt ethane, tetrachloroethylene, toluene, chlorobenzene, cyclohexanone, ethanol or a mixture of the ethane, the tetrachloroethylene, the toluene, the chlorobenzene, the cyclohexanone and the ethanol. Additives such as linseed oil and tung oil, which improve the rheological properties (e.g., viscosity) of the ink and control the drying rate of the ink, plasticizers, surfactants, catalysts, antioxidants, and the like may also be added.
In addition, for example, Y0-102 infrared ink available from Guangxi Kogyo technologies, Inc., which is colorless in appearance and exhibits blue color when irradiated with a 980nm laser lamp; the Y0-101 infrared ink is colorless in appearance and exhibits red color when irradiated with a 980nm laser lamp.
Ultraviolet ink may also be used if the ultraviolet exposure time is short when reading the anti-counterfeiting code or if the anti-counterfeiting code is read in a closed space. Since long-term irradiation or strong ultraviolet rays are harmful to the human body, it is preferable to use infrared-excited ink.
When the dry scrambling code comprises a black ink layer and a colorless ink layer, the black ink layers of the standard code and the dry scrambling code are preferably printed by using the same ink, and then the invisible infrared ink or the ultraviolet ink is used for forming the position of the dry scrambling code. The thickness of the colorless ink layer is very thin, and even if the colorless ink layer covers the black ink layer, people cannot perceive that the thickness of the colorless ink layer is different from that of other areas.
In addition, multiple invisible dyes can be used in the colorless ink layer so that the printed image can be detected in a versatile manner. For example, a metal phthalocyanine infrared fluorescent dye is taken as a first invisible dye, and the dye can emit fluorescence under the irradiation of infrared light; coumarin, quinolone or pyrene is used as a second dye, and the dye can also emit fluorescence under the irradiation of ultraviolet light. Therefore, the anti-counterfeiting code comprising the composite invisible ink can be detected under the irradiation of an infrared light system and can also be detected under an ultraviolet light irradiation system to acquire related information.
In the above example, the interference code is partially divided into the black ink layer and the colorless ink layer, however, the interference code may be formed of black infrared ink including infrared excited phosphor or black ultraviolet ink including ultraviolet excited phosphor.
The particle size of the infrared-excited phosphor or the ultraviolet-excited phosphor may be 10 to 1000nm, and for example, may be 20nm, 30nm, 40nm, 50nm, 60nm, 70nm, 80nm, 90nm, 100nm, 110nm, 120nm, 130nm, 140nm, 150nm, 160nm, 170nm, 180nm, 190nm, 200nm, 300nm, 400nm, 500nm, 600nm, 700nm, 800nm or 900nm, and preferably 100nm or 200 nm.
The particle size of the fluorescent powder in the ink phase is reduced, and the luminous efficiency of the fluorescent ink is improved. When the particle size is less than 20nm, the fine fluorescent powder is easy to re-aggregate or flocculate, and when the particle size is more than 1000nm, the relative fluorescence intensity is generally reduced, and sufficient fluorescence is not easy to obtain from the interference code, so that the two-dimensional code information cannot be read.
The dry scrambling code is preferably formed from a black infrared ink comprising an infrared-excited phosphor.
The weight percentage of the infrared excited phosphor in the black infrared ink may be 10-40%, for example, 15%, 20%, 25%, 30%, or 35%. Within a certain range, as the content of the fluorescent powder is increased, the percentage of pigment particles in the medium is increased, and the relative fluorescence intensity of the infrared fluorescent ink is gradually increased. The weight percentage of the infrared excitation fluorescent powder in the black infrared ink is 10-40%, which can meet the reading of standard bar code information. When the content of the fluorescent powder exceeds 40%, the dispersibility of the fluorescent powder in an ink system is poor, so that quenching phenomenon is easy to occur when the concentration of fluorescent molecules is high, the relative fluorescence intensity is reduced, and the fluorescence life is shortened.
In the invention, the particle size of the infrared excitation fluorescent powder is preferably 150-180 nm; the weight percentage of the infrared excitation fluorescence in the black infrared ink is 30-35%, and the fluorescent powder has good dispersibility and relatively large fluorescence intensity within the range of the particle size of 150-180nm and the weight content. Therefore, the related information of the two-dimensional code can be easily acquired during infrared excitation, and the long service life of the two-dimensional code can be ensured.
As a carrier for black infrared inks, the film-forming resin serves to link the solid pigment particles in powder form and to finally adhere them to the substrate.
Polyurethane resin is preferably used as the film-forming resin, because the molecular structure of the polyurethane resin contains amine ester bonds, strong hydrogen bond acting force exists among molecules, and hydrogen bonds are easily formed with the fluorescent body under the ground state before infrared excitation is received, so that the molar absorption coefficient is increased, namely, the absorption is enhanced, and the relative fluorescence intensity of the prepared infrared fluorescent ink is higher. And carboxylic acid groups are contained in the molecular structure of acrylic resin, and are fluorescence achromatic groups, which can counteract or inhibit the generation of fluorescence, so that the relative fluorescence intensity of the prepared infrared fluorescent ink is low.
The relative fluorescence intensity of the infrared fluorescent ink is greatly influenced by different film-forming resin contents, because the viscosity of an ink system is increased along with the increase of the film-forming resin content, and the vibration and rotation speed of excited molecules is reduced, so that the collision rate of the excited molecules with other pigment particles is reduced, and the relative fluorescence intensity of the infrared fluorescent ink is improved.
The infrared fluorescent ink also contains black pigment particles, and the weight percentage of the polyurethane resin in the black infrared ink is preferably 5-20%, more preferably 15-18%, when the fluorescence intensity is maximum. When the content of the film-forming resin exceeds 20%, the relative fluorescence intensity shows a region of gradually decreasing as the content thereof increases, because the film-forming resin hinders the absorption of light by the fluorescent substance, thereby weakening the relative fluorescence intensity.
The weight percentage of the black ink in the infrared fluorescent ink is 30-55%, for example, 35%, 40%, 45% or 50%, and may further include an ink quick-drying agent, an ink diluent, etc., and the content of the ink quick-drying agent may be 1-2%, and the content of the ink diluent is 1-5%.
In addition, TiO with the particle size of 20-60nm can be added into the infrared fluorescent ink2For example, 30, 40 or 50nm, the weight percentage of the fluorescent ink in the infrared fluorescent ink can be 0.1-0.5%, the quick drying property of the ink can be greatly improved, and the ink can be greatly driedThe infrared fluorescent ink and the common ink can simultaneously carry out high-speed printing on the interference code and the standard code. Therefore, compared with a colorless ink layer, the dry scrambling code is preferably formed by black infrared ink containing infrared excitation fluorescent powder, so that the production efficiency can be improved, and the cost can be reduced.
Another embodiment of the present invention provides an anti-counterfeiting system, which includes an anti-counterfeiting code label and an excitation light irradiation device.
The anti-counterfeiting code label comprises a base layer and an anti-counterfeiting code printed on the base layer; the anti-counterfeiting code comprises a standard code and an interference code, the standard code and the interference code are integrated under visible light, and the interference code generates visible fluorescence under the irradiation of an excitation light source. The various preferences described above are applicable to anti-counterfeiting code labels in anti-counterfeiting systems. The excitation light irradiation means may be an infrared and/or ultraviolet emitter.
Since infrared emitters are used in many scanning devices, infrared emitters are preferably used.
In addition, the anti-counterfeiting system preferably further comprises a visible light emitter, and the color of the light emitted by the visible light emitter is consistent with the color of the visible fluorescence light. Because colored visible fluorescence is generated by the interference code under the irradiation of the laser light source, the interference code and the reflected light of the blank area have obvious difference when the identification anti-counterfeiting code is irradiated. Therefore, in order to improve the anti-counterfeiting performance, the anti-counterfeiting device preferably further comprises a visible light emitter, and the color of light emitted by the visible light emitter is consistent with the color of the visible fluorescence, in this case, because the color of light emitted by the interference code is consistent with the color reflected by the blank area, an illegal person can hardly find the difference between the standard code area and the interference code area, and the difficulty of imitation is increased.
In addition, can set up dedicated sealing and sweep a yard device, be about to infrared emitter or ultraviolet emitter with sweep a yard device setting in the enclosure space, will need to sweep the antifalsification label of sign indicating number and place this enclosure space in, when sweeping the sign indicating number, reflection light and exciting light on the antifalsification label can't be seen to operating personnel or other personnel, further reinforcing antifalsification.
The anti-counterfeiting code label and the anti-counterfeiting system have low production cost, can simply and quickly identify the authenticity of the corresponding commodity, and cannot falsify as a real anti-counterfeiting label even if a lawbreaker prints the label with the same pattern after shooting the relevant anti-counterfeiting code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (8)
1. An anti-counterfeiting code label, comprising: a base layer and an anti-counterfeiting code printed on the base layer;
the anti-counterfeiting code comprises a standard code and an interference code, the standard code and the interference code are integrated under visible light, and the interference code generates visible fluorescence under the irradiation of an excitation light source;
the interference code comprises a black ink layer and a colorless ink layer, the black ink layer and the colorless ink layer are sequentially stacked on the base layer, and the colorless ink layer generates visible fluorescence under the irradiation of an excitation light source;
the anti-counterfeiting code further comprises a blank area;
under the irradiation of a visible light emitter, the color reflected by the blank area is consistent with the color of the visible fluorescence of the interference code, wherein the color of the light emitted by the visible light emitter is consistent with the color of the visible fluorescence.
2. The anti-counterfeiting code label according to claim 1, wherein the colorless ink layer is formed from invisible infrared ink and/or invisible ultraviolet ink.
3. The anti-counterfeiting code label according to claim 1, wherein the dry scrambling code is formed of black infrared ink comprising infrared-excited phosphor and/or black ultraviolet ink comprising ultraviolet-excited phosphor.
4. The anti-counterfeiting code label according to claim 3, wherein the particle size of the infrared excitation fluorescent powder and the particle size of the ultraviolet excitation fluorescent powder are 100-200 nm.
5. The anti-counterfeiting code label according to claim 3, wherein the weight percentage of the infrared excited phosphor in the black infrared ink is 10-40%.
6. The anti-counterfeiting code label according to claim 3, wherein the particle size of the infrared excitation fluorescent powder is 150-180 nm; the weight percentage of the infrared excitation fluorescence in the black infrared ink is 30-35%.
7. The anti-counterfeiting code label according to claim 3, wherein the black infrared ink comprises a polyurethane resin as a film-forming resin.
8. An anti-counterfeiting system, comprising: the anti-counterfeiting code label and the exciting light irradiation device;
the anti-counterfeiting code label comprises a base layer and an anti-counterfeiting code printed on the base layer; the anti-counterfeiting code comprises a standard code and an interference code, the standard code and the interference code are integrated under visible light, and the interference code generates visible fluorescence under the irradiation of an excitation light source;
the excitation light irradiation device comprises an infrared emitter and/or an ultraviolet emitter;
the interference code comprises a black ink layer and a colorless ink layer, the black ink layer and the colorless ink layer are sequentially stacked on the base layer, and the colorless ink layer generates visible fluorescence under the irradiation of an excitation light source;
the anti-counterfeiting code further comprises a blank area;
the anti-counterfeiting system further comprises a visible light emitter, under the irradiation of the visible light emitter, the color reflected by the blank area is consistent with the color of the visible fluorescence of the interference code, wherein the color of the light emitted by the visible light emitter is consistent with the color of the visible fluorescence.
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| CN109754042A (en) * | 2018-12-21 | 2019-05-14 | 北京信息科技大学 | Anti-counterfeiting method for invisible identification of trademark images |
| CN109766975A (en) * | 2018-12-21 | 2019-05-17 | 北京印刷学院 | Two-dimensional code covering infrared complementary identification anti-counterfeiting method |
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