CN108564153A - Security code label and anti-counterfeiting system - Google Patents

Abstract

This invention relates to an anti-counterfeiting code label and anti-counterfeiting system. The anti-counterfeiting code label includes: 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, wherein the standard code and the interference code appear as a single entity under visible light, and the interference code produces visible fluorescence under illumination by an excitation light source. The anti-counterfeiting code label of this invention facilitates the identification of authenticity and is inexpensive.

Description

Anti-counterfeiting code label and anti-counterfeiting system

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 technique

Existing two-dimensional codes and barcodes have increasingly entered people's lives. Many products will provide two-dimensional codes or barcodes to provide corresponding product information. Therefore, people can scan the two-dimensional code or Barcodes are used to obtain product information, and even to determine the authenticity of the product.

For example, the cards of some popular games have high value and can be obtained through games or purchased in game stores. Of course, these game cards can also be repurchased by game stores. Usually, two-dimensional codes are printed on these cards to confirm the relevant information of the cards. However, due to the high value of the cards, counterfeiting by criminals may occur, and the existing two-dimensional codes are also easy to be imitated .

Therefore, in this type of application, there is an urgent need for a simple, effective and low-cost anti-counterfeiting method to prevent imitation by criminals.

Contents of the invention

In view of the above problems, the present invention provides a new anti-counterfeiting code label and anti-counterfeiting system.

One embodiment of the present invention provides an anti-counterfeit code label, comprising: a base layer and an anti-counterfeit 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 appear as one under visible light, and the interference code produces visible fluorescence under the illumination of an exciting light source.

In the above-mentioned anti-counterfeiting 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 is Visible fluorescence is produced when illuminated by 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 interference code is formed by black infrared ink including infrared excitation phosphor powder and/or black ultraviolet ink including ultraviolet excitation phosphor powder.

In the aforementioned anti-counterfeit code label, the particle diameter of the infrared-excited phosphor or the ultraviolet-excited phosphor is 100-200 nm.

In the above anti-counterfeiting code label, the weight percentage of the infrared excitation fluorescent powder in the black infrared ink is 10-40%.

In the above anti-counterfeit code label, the particle diameter of the infrared excitation fluorescent powder is 150-180nm; the weight percentage of the infrared excitation fluorescence in the black infrared ink is 30-35%.

In the above anti-counterfeit code label, the black infrared ink includes polyurethane resin used as a film-forming resin.

In the above anti-counterfeit code label, the weight percentage of the polyurethane resin in the black infrared ink is 5-20%.

In the aforementioned anti-counterfeit code label, the anti-counterfeit code label is a two-dimensional code label or a barcode label.

Another embodiment of the present invention provides an anti-counterfeiting system, including: an anti-counterfeiting code label and an excitation light irradiation device;

The anti-counterfeiting code label includes 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, and the standard code and the interference code appear as one under visible light, and the interference code Visible fluorescence is produced under the excitation light source;

The excitation light irradiation device includes an infrared emitter and/or an ultraviolet emitter.

In the above anti-counterfeiting system, the excitation light irradiation device includes an infrared emitter, and the anti-counterfeiting system further includes a visible light emitter, and the color of the light emitted by the visible light emitter is consistent with the color of the visible fluorescent light.

The anti-counterfeiting code label and the anti-counterfeiting system of the present invention have low production cost, and can identify the authenticity of corresponding commodities simply and quickly.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as It is regarded as limiting the protection scope of the present invention. In the respective drawings, similar components are given similar reference numerals.

Fig. 1 shows a schematic diagram of an example of a normal two-dimensional code.

FIG. 2 shows a schematic diagram of an example of an anti-counterfeiting two-dimensional code including the normal two-dimensional code shown in FIG. 1 .

FIG. 3 shows a schematic diagram of an interference code in the anti-counterfeiting 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 ways

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them.

The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Hereinafter, the terms "comprising", "having" and their cognates that may be used in various embodiments of the present invention are only intended to represent specific features, numbers, steps, operations, elements, components or combinations of the foregoing, And it should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing or adding one or more features, numbers, steps, operations, elements, components or a combination of the foregoing possibilities.

In various embodiments of the present invention, the expression "A or/and B" includes any or all combinations of words listed at the same time, may include A, may include B, or may include both A and B.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific 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 stipulated and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an internal connection between two components. The connection of the above-mentioned terms can be directly connected or indirectly connected through an intermediary, and those skilled in the art can understand the specific meanings of the above terms according to specific situations. Unless otherwise defined, all terms (including technical terms 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) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning, Unless clearly defined in various embodiments of the present invention.

One embodiment of the present invention provides an anti-counterfeit code label, which may include a base layer and an anti-counterfeit code printed on the base layer.

The anti-counterfeiting label referred to in the present invention can be a label formed by printing an anti-counterfeiting code directly on the product itself or on the outer packaging of the product. At this time, the product itself or the outer packaging of the product is the above-mentioned base layer; it can also be formed on, for example, a label sticker code, and then an independent label sticker can be adhered to the product or product packaging. At this time, the label sticker is the above-mentioned base layer.

The anti-counterfeiting code of the present invention can be various identification codes including characters and/or images such as two-dimensional codes and bar codes. Two-dimensional codes and bar codes are more commonly used. The following mainly uses two-dimensional codes as an example to illustrate. Obviously, these The description also applies to identifiers such as barcodes.

The anti-counterfeiting code of the present invention includes a standard code and an interference code, the standard code and the interference code are integrated under visible light, and the interference code produces visible fluorescence under the illumination of an exciting light source.

Referring to Fig. 1 to Fig. 4, Fig. 1 shows an example of a normal two-dimensional code. When the two-dimensional code is scanned by a scanning tool such as a mobile terminal, relevant information of the two-dimensional code can be obtained normally. The anti-counterfeiting code of the present invention includes a standard code, such as a normal two-dimensional code as shown in FIG. 1 , after reading, specific information of related commodities, such as manufacturer, specification, model, etc., can be obtained.

In addition, it also includes an interference code, such as the interference point shown in FIG. 3 , which is combined with the standard code shown in FIG. 1 to form the anti-counterfeiting two-dimensional code of the present invention, 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, fluorescent light, LED light), the picture is shown in black, so the naked eye or two-dimensional code reader cannot distinguish the color of the anti-counterfeit code. Which are normal QR codes and which are interference points. Therefore, under visible light irradiation, relevant information cannot be obtained.

The interference code of the present invention emits visible fluorescence under the illumination of an exciting light source, as shown in FIG. 4 . Therefore, on the two-dimensional code reader, not only the reflected light can be obtained from the blank area inside and outside the two-dimensional code, but also the excited fluorescence can be obtained from the interference code, thus, the two-dimensional code reader such as a mobile terminal can Read the QR code normally to obtain relevant information.

The interference code may include 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 produces visible fluorescence under the illumination of an exciting light source.

The black ink layer can be formed by conventional ink used for printing standard codes, and the colorless ink layer can be formed by invisible infrared ink or invisible ultraviolet ink.

The invisible ultraviolet ink can be an ink that emits visible light (400-800nm) when excited by ultraviolet (200-400nm) irradiation. Invisible UV ink is colorless and transparent under normal conditions, and can display red, yellow, green, blue and other colors under the irradiation of ultraviolet light. For example, you can use Y4-100 ultraviolet ink from Guanchuang Yijia Technology Co., Ltd., its appearance is colorless, and it will show green when irradiated with 365nm fluorescent light; Y4-101 ultraviolet ink, its appearance is colorless, when irradiated with 365nm fluorescent lamp , can display red.

Invisible infrared excitation ink is colorless and invisible under normal conditions, and can present different colors such as red, green, blue, yellow, etc. under the illumination of the excitation light source. The dyes in the ink need to have strong absorption of infrared light, and also have good color fastness, heat resistance, and chemical resistance. Phthalocyanine, naphthalene phthalocyanine, aromatic amines, and methine dyes all have compounds suitable for configuring invisible infrared inks. The solvents for preparing invisible infrared inks can be ethane, tetrachloroethylene, toluene, chlorobenzene, cyclohexanone, ethanol or their mixtures. Some additives can also be added, for example, linseed oil and tung oil, which can improve the rheological properties of the ink (such as viscosity), and can control the drying speed of the ink, and can also add plasticizers, surfactants, catalysts and antioxidants, etc. .

In addition, for example, you can use Y0-102 infrared ink from Guanchuang Yijia Technology Co., Ltd., which is colorless in appearance and can display blue when irradiated with a 980nm laser light; Y0-101 infrared ink, which is colorless in appearance When 980nm laser light is irradiated, it can display red.

UV ink can also be used if the UV exposure time is very short when reading the security code or if the security code is read in a closed space. Because long-term exposure or strong ultraviolet rays are harmful to the human body, infrared excitation inks are preferably used.

When the interference code includes a black ink layer and a colorless ink layer, it is preferable to print the black ink layer of the standard code and the interference code with the same ink, and then use the above-mentioned invisible infrared ink or ultraviolet ink at the position of the interference code to form. The thickness of the colorless ink layer is very thin, and even if it is covered on the black ink layer, people cannot perceive the thickness difference with other areas.

In addition, a variety of invisible dyes can be employed in the colorless ink layer, allowing printed images to be detected in a versatile manner. For example, metal phthalocyanine infrared fluorescent dye is used as the first stealth dye, which can emit fluorescence under infrared light irradiation; coumarin, quinolone or pyrene is used as the second dye, and this dye, under ultraviolet light irradiation, Can also fluoresce. Therefore, the anti-counterfeit code including the composite invisible ink can be detected under the irradiation of the infrared light system, and can also be detected under the ultraviolet light irradiation system to obtain relevant information.

In the above example, the interference code part is divided into a black ink layer and a colorless ink layer, however, the interference code may also be formed of black infrared ink including infrared excitation phosphor or black ultraviolet ink including ultraviolet excitation phosphor.

The particle size of the infrared excitation phosphor or the ultraviolet excitation phosphor can be 10-1000nm, such as 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, preferably 100-200nm.

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. When the particle size is larger than 1000nm, generally speaking, the relative fluorescence intensity decreases, and it is difficult to obtain enough fluorescence from the interference code, resulting in failure to read QR code information.

The jamming code is preferably formed from black infrared ink including infrared excited phosphors.

The weight percentage of the infrared excitation fluorescent powder in the black infrared ink can be 10-40%, for example, it can be 15%, 20%, 25%, 30% or 35%. Within a certain range, as the phosphor content increases, the percentage of pigment particles in the medium increases, and the relative fluorescence intensity of the infrared fluorescent ink also gradually increases. The percentage by weight of the infrared excitation fluorescent powder in the black infrared ink is 10-40%, which can satisfy the reading of standard barcode information. When the content of phosphor powder exceeds 40%, the dispersion of phosphor powder in the ink system is not good, which leads to the phenomenon of quenching when the concentration of fluorescent molecules is high, resulting in a decrease in relative fluorescence intensity and a decrease in fluorescence lifetime.

In the present invention, it is preferred that the particle diameter of the infrared excitation fluorescent powder is 150-180nm; the weight percentage of the infrared excitation fluorescence in the described black infrared ink is 30-35%. The powder has good dispersibility and relatively high fluorescence intensity. In this way, not only can the relevant information of the two-dimensional code be easily obtained during infrared excitation, but also the long service life of the two-dimensional code can be ensured.

As the carrier of black infrared ink, the function of film-forming resin is to connect the powdery solid pigment particles and make them finally adhere to the substrate.

Polyurethane resin is preferably used as the film-forming resin. This is because the molecular structure of polyurethane resin contains urethane bonds, and there is a strong hydrogen bond force between the molecules. It is easy to form hydrogen with the phosphor in the ground state before receiving infrared excitation. bond, so that the molar absorptivity coefficient increases, that is, the absorption is enhanced, so the relative fluorescence intensity of the prepared infrared fluorescent ink is higher. However, in molecular structures such as acrylic resins, there are carboxylic acid groups, which are fluorescent achromatic groups, which can offset or inhibit the generation of fluorescence, so the relative fluorescence intensity of the prepared infrared fluorescent ink is low.

The content of different film-forming resins also has a great influence on the relative fluorescence intensity of infrared fluorescent inks. This is because as the content of film-forming resins increases, the viscosity of the ink system will increase, reducing the vibration and rotation rates of excited state molecules, thereby reducing The collision rate with other pigment particles is improved, and the relative fluorescence intensity of 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%, and the fluorescence intensity at this time is maximum. When the film-forming resin content exceeds 20%, as its content increases, the relative fluorescence intensity presents a region where the relative fluorescence intensity gradually decreases, because the film-forming resin hinders the absorption of light by the fluorescent substance, thereby weakening the relative fluorescence intensity.

The weight percent of the black ink in infrared fluorescent ink is 30-55%, for example is 35%, 40%, 45% or 50%, can also comprise ink quick-drying agent, ink thinner etc., the content of ink quick-drying agent Can be 1-2%, ink thinner 1-5%.

In addition, TiO ₂ with a particle size of 20-60nm, such as 30, 40 or 50nm, can be added to the infrared fluorescent ink, and the weight percentage in the infrared fluorescent ink can be 0.1-0.5%, which can greatly improve the quick-drying property of the ink , so that the infrared fluorescent ink and ordinary ink can simultaneously print the interference code and the standard code at high speed. Therefore, compared with the black ink layer and the colorless ink layer used for the interference code, the interference code is preferably formed of black infrared ink including infrared-excited 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-counterfeit code label includes a base layer and an anti-counterfeit code printed on the base layer; the anti-counterfeit code includes a standard code and an interference code, and the standard code and the interference code appear as one under visible light, and the interference code is activated Produces visible fluorescence under light irradiation. The various preferred items mentioned above are applicable to the anti-counterfeiting code label in the anti-counterfeiting system. The excitation light irradiation device may be an infrared and/or ultraviolet emitter.

Since infrared emitters are used in many scanning devices, the use of infrared emitters is preferred.

In addition, the anti-counterfeiting system preferably further includes a visible light emitter, and the color of the light emitted by the visible light emitter is consistent with the color of the visible fluorescent light. Since the interference code produces colored and visible fluorescence under the irradiation of the laser light source, there may be obvious differences between the interference code and the reflected light of the blank area when the anti-counterfeiting code is irradiated to identify it. Therefore, in order to improve anti-counterfeiting, it is preferable to also include a visible light emitter, and the color of the light emitted by the visible light emitter is consistent with the color of the visible fluorescent light. The reflected colors are consistent, and it is difficult for criminals to find the difference between the standard code area and the interference code area, which increases the difficulty of imitation.

In addition, a special closed code scanning device can be set up, that is, the infrared emitter or ultraviolet emitter and the code scanning device are set in a closed space, and the anti-counterfeiting label that needs to be scanned is placed in the closed space. When scanning the code, the operator or Other personnel cannot see the reflected light and excitation light on the anti-counterfeiting label, further enhancing the anti-counterfeiting performance.

The anti-counterfeiting code label and the anti-counterfeiting system of the present invention have low production cost, and can easily and quickly identify the authenticity of corresponding commodities. Even if criminals print out labels with the same pattern after photographing relevant anti-counterfeiting codes, they cannot pretend to be real anti-counterfeiting labels.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention.

Claims (10)

1. A kind of anti-counterfeit code label, it is characterized in that, comprises: the anti-counterfeit code printed on the base layer and the base layer; The anti-counterfeiting code includes a standard code and an interference code, the standard code and the interference code appear as one under visible light, and the interference code produces visible fluorescence under the illumination of an exciting light source. 2. The anti-counterfeit code label according to claim 1, wherein the interference code comprises a black ink layer and a colorless ink layer, and the black ink layer and the colorless ink layer are sequentially stacked on the base layer , and the colorless ink layer produces visible fluorescence under the illumination of an exciting light source. 3. The anti-counterfeiting code label according to claim 2, characterized in that, the colorless ink layer is formed by invisible infrared ink and/or invisible ultraviolet ink. 4 . The anti-counterfeit code label according to claim 1 , wherein the interference code is formed by black infrared ink including infrared excitation phosphor powder and/or black ultraviolet ink including ultraviolet excitation phosphor powder. 5 . The anti-counterfeit code label according to claim 4 , wherein the particle diameters of the infrared-excited phosphor powder and the ultraviolet-excited phosphor powder are 100-200 nm. 6 . The anti-counterfeit code label according to claim 4 , wherein the weight percentage of the infrared-excited fluorescent powder in the black infrared ink is 10-40%. 7. The anti-counterfeiting code label according to claim 4, characterized in that, the particle diameter of the infrared excitation fluorescent powder is 150-180nm; the weight percentage of the infrared excitation fluorescence in the black infrared ink is 30-35 %. 8. The anti-counterfeiting code label according to claim 4, characterized in that, the black infrared ink comprises polyurethane resin used as a film-forming resin. 9. An anti-counterfeiting system, comprising: an anti-counterfeiting code label and an excitation light irradiation device; The anti-counterfeiting code label includes 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, and the standard code and the interference code appear as one under visible light, and the interference code Visible fluorescence is produced under the excitation light source; The excitation light irradiation device includes an infrared emitter and/or an ultraviolet emitter. 10. The anti-counterfeiting system according to claim 9, wherein the excitation light irradiation device includes an infrared emitter, and the anti-counterfeiting system also includes a visible light emitter, and the color of the light emitted by the visible light emitter is consistent with the The color of the visible fluorescence is consistent with the above.