Abstract

The present application provides an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate; and a microstructure layer, wherein the microstructure layer is located on at least one side surface of the substrate; at least one feature straight line is arranged in a plane where the microstructure layer is located; in the extension direction of the feature straight line, the microstructure layer comprises a plurality of reflection structures; the side of the reflection structure distant from the substrate is provided with a reflective surface; the plane angle of a dihedral angle formed by the reflective surface and the surface of the substrate is an angle of inclination; the angles of inclination of all the reflection structures in the direction of the feature straight line at least comprise a change cycle; in one change cycle, the changes of all angles of inclination are formed by superposing primary changes and secondary changes; and when the optical anti-counterfeiting element rotates along a rotating axis in the plane where the optical anti-counterfeiting element is located, the optical anti-counterfeiting element presents global shifting visual features and localized shifting visual features due to the primary changes and the secondary changes. The present application solves the problem in the prior art that the shifting visual features of an optical anti-counterfeiting element are not easy to identify.

IPC Classes  ?

• B42D 25/324 - Reliefs

Abstract

An optical anti-counterfeiting element (130), an optical anti-counterfeiting product (50), and a manufacturing method. The optical anti-counterfeiting element (130) comprises: a substrate; a microstructure forming layer (10), wherein the microstructure forming layer (10) is provided on the surface at one side of the substrate, the microstructure forming layer (10) is provided with a microstructure (20), and the longitudinal section of the microstructure (20) has a preset shape; and a coating (30), wherein the coating (30) is arranged on the microstructure forming layer (10), the microstructure (20) is plated with the coating (30) to form a plated microstructure, and the height of the plated microstructure changes continuously. If the microstructure (20) has a suddenly changed position, the coating (30) has a hollow area (34), and if the height of the microstructure (20) changes continuously, the coating (30) does not have any hollow area (34).

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/20 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose
• B42D 25/40 - Manufacture
• B42D 25/00 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof
• B42D 25/373 - Metallic materials
• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms

Abstract

Provided in the present application is an anti-counterfeiting element. The anti-counterfeiting element comprises: a base material; and a plurality of reflective curved mirrors, wherein at least some of the reflective curved mirrors are provided with independent micro graphic structures, which are divided into a plurality of micro graphic areas from a center position of the base material to an edge position thereof by taking the period of the reflective curved mirrors as a unit; the duty cycles of the micro graphic areas located at the center position of the base material are greater than the duty cycles of the micro graphic areas located at the edge position of the base material; the reflective curved mirrors perform sampling synthesis on the micro graphic structures which have coupling effects therewith, and then the micro graphic structures are displayed as three-dimensional patterns, which have depths of field; and the minimum unit radian of each reflective curved mirror, which has the micro graphic structure, corresponds to one projection angle, so that only a side surface of the three-dimensional pattern can be seen when a user views the three-dimensional pattern at one angle. The present application solves the problem of anti-counterfeiting elements not being well viewed with a person's eyes in the prior art.

IPC Classes  ?

• B42D 25/324 - Reliefs

Abstract

An encoding element and an anti-counterfeiting product. The encoding element includes a printing stock, wherein the printing stock has an encoding area thereon; the encoding area is provided with at least one group of markers, and at least one of the attributes of markers in the same group is the same; and the markers are randomly distributed, such that encoding information of the encoding element is random. By means of the disclosure, an encoding system of “one object, one code” is realized, and the uniqueness of encoding is realized by means of random encoding information, which cannot be preset.

IPC Classes  ?

• G06K 7/14 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
• B42D 25/23 - Identity cards
• B42D 25/29 - Securities Bank notes
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/342 - Moiré effects
• B42D 25/369 - Magnetised or magnetisable materials
• B42D 25/378 - Special inks
• G06K 19/06 - 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

Abstract

An optical anti-counterfeit element includes an undulating structure layer (2); the undulating structure layer includes a first area (A) with a first microstructure and a second area (B) with a second microstructure; a structural parameter of the second microstructure is greater than a structural parameter of the first microstructure; the undulating structure layer also includes a third area (C) with a third microstructure; a structural parameter of the third microstructure is greater than the structural parameter of the second microstructure; a first plating layer (3) is arranged on the first area; a second plating layer (5) is arranged on the second area; the third area is not provided with a first plating layer or a second plating layer; and viewed from one side of the optical anti-counterfeit element, the first area has an optical feature of a combination of the first microstructure and the first plating layer, the second area has an optical feature of a combination of the second microstructure and the second plating layer, and the third area has hollow features. The optical anti-counterfeit element has excellent anti-counterfeit performance.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/373 - Metallic materials
• B42D 25/45 - Associating two or more layers
• G02B 5/18 - Diffracting gratings

Abstract

Provided are an optical anti-counterfeiting element and a product thereof, the optical anti-counterfeiting element includes: a substrate; a reflective curved mirror array, located on a surface of the substrate; and a micro graphic-text array, formed on the reflective curved mirror array, the micro graphic-text array and the reflective curved mirror array are located in a same plane and are overlapped without an interval, and after the reflective curved mirror array samples to synthesize the micro graphic-text array with a coupling effect with the same, a dynamic effect is formed.

IPC Classes  ?

• B42D 25/378 - Special inks
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/369 - Magnetised or magnetisable materials
• B42D 25/373 - Metallic materials
• G02B 5/10 - Mirrors with curved faces
• G02B 17/00 - Systems with reflecting surfaces, with or without refracting elements

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element comprises a substrate (1) and a plurality of reflecting mirror surface sections (2). The reflecting mirror surface sections are arranged on the surface of one side of the substrate according to a preset rule, the plurality of reflecting mirror surface sections being spaced apart from each other to form gaps (5). The reflecting mirror surface sections and/or the gaps provide pixels of a macroscopic image, thereby forming a macroscopic dynamic and three-dimensional image. The problem of low yields of optical anti-counterfeiting elements in the prior art is solved.

IPC Classes  ?

• B42D 25/00 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof

Abstract

Disclosed are an optical anti-counterfeiting element and an anti-counterfeiting product. The optical anti-counterfeiting element includes a substrate; and a sampling layer formed on a first surface of the substrate, wherein the sampling layer is a sampling unit array composed of sampling units distributed according to a preset graphic-text information, the sampling unit array is aligned, in a preset manner, with a light-emitting pixel array positioned on a second surface side of the substrate and composed of light-emitting pixels, and the sampling unit array is configured for sampling the light-emitting pixel array, so as to show the preset graphic-text information of a single color or comprehensive colors of a plurality of colors among colors of the light-emitting pixels, wherein the light-emitting pixels of the single color or the comprehensive colors of the plurality of colors show a moire magnification effect.

IPC Classes  ?

• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/342 - Moiré effects
• G02B 3/00 - Simple or compound lenses

Abstract

Disclosed are a multi-optical-color optically-variable printing device (10) and a printing method thereof, and a readable storage medium. The multi-optical-color optically-variable printing device comprises: a conveying unit (100); a screen printing unit (110), used for printing an ink or a varnish containing a magnetic substance on a printing stock (500); and a plurality of optical-color optically-variable pattern forming units. Each optical-color optically-variable pattern forming unit comprises: magnetizing rollers (130), magnetic orientation components (132) being arranged on each magnetizing roller and used for performing magnetic orientation on the printing stock; and pre-drying and curing devices (160), used for pre-drying and curing the printing stock, each pre-drying and curing device comprising optical mask curing devices (230), the optical mask curing device being fixedly arranged and used for projecting dynamically refreshable variable optical field image-text, and the variable optical field image-text and the printing stock synchronously moving a predetermined distance. The multi-optical-color optically-variable printing device can complete omni-directional splicing, i.e., splicing in any direction, of fixed and variable multi-optical-color optically-variable image-text.

IPC Classes  ?

• B41F 15/12 - Machines with auxiliary equipment, e.g. for drying printed articles
• B41F 15/14 - Screen printers Details
• B41F 33/00 - Indicating, counting, warning, control or safety devices
• G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
• G02F 1/11 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
• G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
• H01F 13/00 - Apparatus or processes for magnetising or demagnetising

Abstract

The present application provides an optical anti-counterfeiting element, an anti-counterfeiting product, and a manufacturing method for the optical anti-counterfeiting element. The optical anti-counterfeiting element, comprising a substrate layer and an optical layer. The optical layer is provided on one side of the substrate layer and connected to the substrate layer, the optical layer comprises a microstructure layer, and the microstructure layer comprises: a first region, the first region being provided with a plurality of first microstructures; and a second region, the second region being provided with a plurality of second microstructures. Observed from one side of the optical anti-counterfeiting element, the first region has white features, the second region has interference optical color-changing features, and a specific volume of the second microstructure is greater than a specific volume of the first microstructure. The present application solves the problem of poor anti-counterfeiting performance of the optical anti-counterfeiting element in the prior art.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/40 - Manufacture

Abstract

Disclosed are an anti-counterfeiting element and an anti-counterfeiting product. The anti-counterfeiting element comprises: a substrate (1), the substrate comprising a first surface and a second surface opposite to each other; a microlens array layer (2), the microlens array layer being located at the first surface of the substrate; a micrographic array layer (3), the micrographic array layer being located at the second surface of the substrate, a side surface of the micrographic array layer distant from the substrate comprising at least a micrographic areas and a micrographic background areas, there being multiple micrographic areas and multiple micrographic background areas, said areas being alternately arranged; a second color layer (6), the second color layer being located at the side surface of the micrographic array layer distant from the substrate; and a first color layer (4), the first color layer being located between the micrographic array layer and the second color layer, there being multiple first color layers, the multiple first color layers being in one-to-one correspondence with the multiple micrographic areas, one of the first color layer and the second color layer being a metal plating layer and the other being an interference light variable layer. The problem of poor anti-counterfeiting performance of anti-counterfeiting elements in the prior art is solved.

IPC Classes  ?

• B42D 25/29 - Securities Bank notes
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

Embodiments of the present application provide an anti-counterfeiting image element and an anti-counterfeiting product, and belong to the technical field of anti-counterfeiting. The anti-counterfeiting image element comprises: a light-transmissive substrate layer, which comprises a first surface and a second surface that are opposite one another; a microstructure layer, which is located on the first surface, the microstructure layer comprising a plurality of microstructures, each microstructure comprising a flat region and/or a non-flat region, the pitch angles of the microstructures comprising the flat regions being smaller than the pitch angles of the microstructures comprising the non-flat regions; a reflective structure layer, which is located on the microstructure layer, the reflective structure layer covering at least a portion of the non-flat regions; and an anti-counterfeiting image layer, which is provided with an anti-counterfeiting image, the anti-counterfeiting image being located on the reflective structure layer or on the second surface. According to the embodiments of the present application, an anti-counterfeiting image can appear during front observation and a dynamic feature can appear during side observation, thus the technical problem that existing anti-counterfeiting products are easily forge can be solved.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/21 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose for multiple purposes

Abstract

Provided are a customizable anti-counterfeiting element and an anti-counterfeiting product. The anti-counterfeiting element comprises a graphic-text layer (2) and a shielding layer (1); the shielding layer (1) comprises micro masks (11) and a sampling system (13); the micro masks (11) are used for shielding the graphic-text layer (2); and the sampling system (13) can perform sampling and synthesis on the shielded graphic-text layer (2) to form a reproduced image, and the reproduced images presented at different observation positions are different. The anti-counterfeiting element uses a micro structure to achieve directional shielding, so that a customizable graphic-text has an optically variable anti-counterfeiting feature, thereby improving the anti-counterfeiting capability.

IPC Classes  ?

• B42D 25/21 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose for multiple purposes
• B42D 25/324 - Reliefs
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

Disclosed are an anti-counterfeiting element, a product, and a method for manufacturing an anti-counterfeiting element. The anti-counterfeiting element comprises: a translucent substrate (100); and an image layer (200), which is located on a surface of the substrate or located in the substrate, wherein the image layer includes a transparent region (201) and opaque regions (202) for visible light; the reflection property of the opaque regions is the same as or similar to the reflection property of the substrate; and the image layer is invisible during reflection observation, and is visible during transmission observation. Since the image layer comprises a transparent region with higher light transmittance and opaque regions with lower light transmittance, the anti-counterfeiting element may present a high-contrast image during transmission observation. Since the reflection property of the opaque regions is the same as or similar to the reflection property of the substrate, the image layer can be hidden well during reflection observation. The anti-counterfeiting element has a better degree of identification and better reliability.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/40 - Manufacture

Abstract

A platemaking apparatus (100) using laser engraving, a control system, a platemaking method, and a storage medium, which belong to the field of laser beam machining. The platemaking apparatus (100) using laser engraving comprises: a base (10); an XY motion platform (20), which is arranged on the base (10) so as to move transversely and is used for bearing a printing plate; a support platform (30), which is disposed on the base (10), a movement space being provided between the support platform (30) and the base (10) and allowing for transverse movement of the XY motion platform (20); a plurality of laser machining assemblies (40), the laser machining assemblies (40) being connected to the support platform (30), and at least a portion of the laser machining assemblies (40) being adapted to move relative to the support platform (30) and being used to perform laser engraving on the printing plate. The plurality of laser machining assemblies (40) are provided, such that laser engraving operations can be performed simultaneously so as to increase the platemaking speed. At the same time, the laser machining assemblies (40) are configured as movable structures, so that each laser machining assembly (40) can work independently, and different image or text content may be engraved on the printing plate in respective corresponding areas, thus allowing for completion of engraving of the entire printing plate.

IPC Classes  ?

• B23K 26/362 - Laser etching
• B23K 26/08 - Devices involving relative movement between laser beam and workpiece
• B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
• B23K 26/70 - Auxiliary operations or equipment
• B23K 26/142 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor for the removal of by-products

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element includes: a substrate, wherein the substrate includes a first surface and a second surface opposite each other; a micrographic layer formed on the second surface of the substrate, wherein the micrographic layer includes a micro-graphic-text region showing a preset graphic-text information and a background region, at least part of the micro-graphic-text region or the background region is covered with a small reflection surface, and the small reflection surface is covered with a color modulation structure; and a sampling layer formed on the first surface of the substrate, wherein the sampling layer is configured for sampling the micro-graphic-text layer and composing, with sampled graphics, the preset graphic-text information of a preset color showing a moire magnification effect. A colored anti-counterfeiting feature with a color varying effect showing a moire magnification effect can be generated without coloring.

IPC Classes  ?

• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials

Abstract

Disclosed in the present application is a multi-optical-color optically variable printing apparatus. The multi-optical-color optically variable printing apparatus comprises a conveying portion, a silk-screen printing unit, a first optical-color optically variable pattern forming unit, a second optical-color optically variable pattern forming unit and a transmission system, wherein the conveying portion is used for conveying a base material to be printed; the silk-screen printing unit is in the next procedure of the conveying portion, and is used for imprinting ink or varnish onto said base material that is conveyed by the conveying portion, so as to form a semi-finished product; the first optical-color optically variable pattern forming unit is in the next procedure of the silk-screen printing unit, and is used for forming a first optical-color optically variable pattern on a first region of the semi-finished product; and the second optical-color optically variable pattern forming unit is in the next procedure of the first optical-color optically variable pattern forming unit, and is used for forming a second optical-color optically variable pattern on a second region of the semi-finished product. By means of the present application, for the same silk-screen printing pattern, multi-optical-color optically variable technology with a plurality of effects can be realized, and the stitching of a plurality of effect patterns can also be realized.

IPC Classes  ?

• B41F 11/02 - Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
• B41M 3/06 - Veined printingsFluorescent printingsStereoscopic imagesImitated patterns, e.g. tissues, textiles

Abstract

A laser plate making device and a plate making system. The laser plate making device comprises: a base (1); a roller (4) movably provided on the base, wherein the roller is rotatable relative to the base, moves along the axial direction of the roller, and is provided with a printing plate (5); at least one optical path platform (2) movably provided on the base, wherein each optical path platform is provided with at least one laser machining assembly (3), the processing range of the laser machining assembly covers the moving range of the printing plate in the axial direction, and the laser machining assembly is capable of machining, on the printing plate, gravure plates and/or screen plates. By means of the technical solution of the present application, the laser plate making device is capable of simultaneously machining, on one or more printing plates, gravure plate patterns and screen plate patterns.

IPC Classes  ?

• B41C 1/05 - Heat-generating engraving heads, e.g. laser beam, electron beam
• B23K 26/362 - Laser etching

Abstract

Provided are an optical anti-counterfeiting element and an anti-counterfeiting product, the optical anti-counterfeiting element comprises: a substrate (1); and a plurality of Fresnel structures (2) with preset lateral dimensions formed on the substrate (1), the plurality of Fresnel structures (2), when illuminated by a preset light source, being used to form preset graphic information in the transmission direction, and to present the preset graphic information with a relief effect in the reflection direction. The optical anti-counterfeiting element, when illuminated, reproduces a preset pattern from the transmission direction, and presents a relief effect from the reflection direction. The element improves anti-counterfeiting ability and recognition, and has a simple identification process.

IPC Classes  ?

• B42D 25/324 - Reliefs
• G02B 3/08 - Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Abstract

Provided are an optical anti-counterfeiting element and a design method therefor, an anti-counterfeiting product, and a data carrier. The optical anti-counterfeiting element (1) has a diffuse reflection region (2); the diffuse reflection region can reflect incident light into the range of at least a preset observation angle set Ωv; the diffuse reflection region comprises a plurality of reflection facets (3); the plurality of reflection facets comprise modified reflection facets that are globally or locally modified, and unmodified reflection facets; the modified reflection facets and the unmodified reflection facets have different reflection characteristics, wherein the modified reflection facets correspond to a pattern region (71, 81); and when the diffuse reflection region is irradiated by the incident light, the modified reflection facets are collectively presented as a pattern of a dynamic feature, and the unmodified reflection facets are collectively presented as a background (72, 82) of the dynamic feature. The optical anti-counterfeiting element is simple in manufacturing process, and can flexibly implement a dynamic feature such as color and/or light-dark contrast.

IPC Classes  ?

• B42D 25/324 - Reliefs

Abstract

The present application provides an optical anti-counterfeiting element, a design method therefor, and an anti-counterfeiting product. The optical anti-counterfeiting element has a substantially smooth diffuse reflective curved surface. Incident light is reflected by the diffuse reflective curved surface and then may form a substantially uniform brightness distribution in a range no less than a preset observation angle set Ωv. The diffuse reflective curved surface comprises modified curved regions and unmodified curved regions. The modified curved regions and the unmodified curved regions have different reflective properties, and the modified curved regions correspond to pattern regions of an animation frame. When the diffuse reflective curved surface is irradiated by the incident light, the modified curved regions collectively appear as a pattern of dynamic features, and the unmodified curved regions collectively appear as a background of the dynamic features. The fabrication process therefor is simple, and dynamic features such as color and/or bright and dark contrast can be flexibly achieved.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

A thin film element, a transparent anti-counterfeiting element, and a data carrier, which belong to the technical field of anti-counterfeiting. The thin film element comprises: at least two low refractive index dielectric layers (11), at least two high refractive index dielectric layers (12), and at least one translucent reflective layer (13). The at least two high refractive index dielectric layers (12) are located between the at least two low refractive index dielectric layers (11), the at least one translucent reflective layer (13) is located between the two high refractive index dielectric layers (12), and the thin film element has at least two colors after light is reflected on one surface and reflected on and transmitted through the other surface. The thin film element can be used as an anti-counterfeiting element, so as to achieve more practical and more difficult re-engraving.

IPC Classes  ?

• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters

Abstract

Provided in the embodiments of the present application are an encoding element and an anti-counterfeiting product. The encoding element comprises: a printing stock, wherein the printing stock has an encoding area thereon; the encoding area is provided with at least one group of markers, and at least one of the attributes of markers in the same group is the same; and the markers are randomly distributed, such that encoding information of the encoding element is random. By means of the present application, an encoding system of "one object, one code" is realized, and the uniqueness of encoding is realized by means of random encoding information, which cannot be preset.

IPC Classes  ?

• G06K 19/06 - 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

Abstract

The disclosure provides an optical anti-counterfeiting element (1) and an optical anti-counterfeiting product (0), which belong to the technical field of optical anti-counterfeiting. The optical anti-counterfeiting element includes: a substrate (2) having a first surface (21) and a second surface (22) opposite each other, at least a partial region of the substrate is transparent; and a first transflective coating (31), a dielectric layer (32) and a second transflective coating (33) which are sequentially deposited on the first surface, wherein a ratio of a refractive index to an extinction coefficient of the first transflective coating is different from a ratio of a refractive index to an extinction coefficient of the second transflective coating. When observed from the first surface, the optical anti-counterfeiting element appears in a relatively bright first color; when observed from the second surface, the optical anti-counterfeiting element appears in a relatively bright second color.

IPC Classes  ?

• B42D 25/373 - Metallic materials
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/324 - Reliefs
• G02B 5/08 - Mirrors

Abstract

The disclosure provides an optical anti-counterfeiting element and an optical anti-counterfeiting product, the optical anti-counterfeiting element includes: a substrate (2) having a first surface and a second surface opposite to each other; a microstructure formation layer (3) formed on the first surface, the microstructure formation layer (3) includes at least a first region (41), the first region (41) includes at least a first microstructure (5), the first microstructure (5) includes a convex portion and/or a concave portion; and optically variable coatings (4a, 4b) homomorphically covering on the first microstructure (5), the optically variable coatings (4a, 4b) include reflective layers (4a1, 4b1), dielectric layers (4a2, 4b2) and absorption layers (4a3, 4b3) which are stacked in sequence, wherein the reflective layers (4a1, 4b1) or the absorption layers (4a3, 4b3) are in contact with the first microstructure (5), and the dielectric layers (4a2, 4b2) are obtained by coating or printing.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials
• G02B 1/10 - Optical coatings produced by application to, or surface treatment of, optical elements

Abstract

An anti-counterfeiting element and a manufacturing method therefor, and an anti-counterfeiting product. The anti-counterfeiting element comprises a substrate (6); the substrate (6) comprises a first surface and a second surface; the manufacturing method comprises: producing a diffuse reflection structure (2) on the first surface of the substrate (6); covering the surface of the diffuse reflection structure (2) with a reflective layer (3) in a same type; and forming a corresponding micro-hollow sub-region (4) according to a presentation angle of a dynamic feature presented with the change of an observation angle and angle distribution information of the diffuse reflection structure (2). An optically variable anti-counterfeiting element (1) presents a multi-color dynamic feature, and has a layout rule that cannot be directly identified, thereby enhancing the counterfeiting difficulty in multiple dimensions such as microstructure design and manufacturing processes, and improving the anti-counterfeiting resistance.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/40 - Manufacture
• B42D 25/20 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose

Abstract

An anti-counterfeiting element (1, 2). The anti-counterfeiting element (1, 2) comprises a spacer layer, wherein the spacer layer comprises: a first surface, which comprises a micro-focusing unit (12, 22, 32, 50), a partial region of a surface of the micro-focusing unit (12, 22, 32, 50) including a color rendering structure (54), and the micro-focusing unit (12, 22, 32, 50) being used for sampling, magnifying and displaying a micro-image-text unit (63, 64), so as to present a colored dynamic feature on at least one of the first surface and a second surface; and a second surface, which comprises at least one micro-image-text unit (63, 64). By means of an optically variable anti-counterfeiting element capable of presenting a dynamic feature, a stereoscopic impression that is obviously located on a surface can be produced, and is difficult to replicate and imitate, thereby improving the anti-counterfeiting resistance of the anti-counterfeiting element.

IPC Classes  ?

• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• G02B 3/00 - Simple or compound lenses

Abstract

The embodiments of the present application belong to the technical field of pigments. Provided are a flaky optical pigment and a preparation method therefor, and an anti-counterfeiting element. At least part of an area of the flaky optical pigment comprises a sub-wavelength structure, the surface of the sub-wavelength structure is covered with at least one metal layer and at least one dielectric supporting layer, and the metal layer and the dielectric supporting layer are in a structure in which the metal layer and the dielectric supporting layer are alternately arranged one below the other, so that the flaky pigment generates different colors in reflection and transmission directions. The flaky optical pigment provided in the embodiments of the present application has a plurality of color features, such as reflection and transmission, is an optical anti-counterfeiting pigment with an attractive visual appearance, and has a low manufacturing cost.

IPC Classes  ?

• C09C 1/62 - Metallic pigments or fillers
• B42D 25/20 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose
• B42D 25/324 - Reliefs

Abstract

The disclose provides an optical anti-counterfeiting element and a manufacturing method of the optical anti-counterfeiting element, the optical anti-counterfeiting element includes: a substrate, the substrate has a first surface and a second surface which are opposite to each other; and an interference color layer located on the first surface of the substrate, the interference color layer is located in a non-hollow area of the optical anti-counterfeiting element and is not located in a hollow area, the interference color layer is a Fabry-Perot filter structure, an absorbing layer of the Fabry-Perot filter structure is in contact with the substrate, and a material of the absorbing layer is an alloy.

IPC Classes  ?

• B42D 25/373 - Metallic materials
• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/45 - Associating two or more layers
• B42D 25/445 - Marking by removal of material using chemical means, e.g. etching
• G02B 5/28 - Interference filters
• G02B 5/18 - Diffracting gratings

Abstract

An optical anti-counterfeiting element and manufacturing methods of the optical anti-counterfeiting element are provided. The optical anti-counterfeiting element includes an undulating structure layer provided with a first area, a second area and a third area; the first area has a first microstructure; the second area has a second microstructure; the third area is an unstructured flat area; a specific volume of the second microstructure is greater than a specific volume of the first microstructure; the first area and the third area are respectively provided with a reflecting layer, a dielectric layer and an absorbing layer which are overlapped, and the second area is not provided with a reflecting layer; and a surface appearance of one side, far away from the undulating structure layer, of the dielectric layer of the first area is obviously different from a surface appearance of the undulating structure layer.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/373 - Metallic materials
• B42D 25/45 - Associating two or more layers
• G02B 5/18 - Diffracting gratings

Abstract

Provided are an optical anti-counterfeiting element and product. The optical anti-counterfeiting element comprises a base material (1); a reflective curved mirror array (21) located on one surface of the substrate; and a micro image-text array (22) formed on the reflective curved mirror array, wherein the micro image-text array and the reflective curved mirror array are located in the same plane and are overlapped without an interval, and after the sampling and synthesis of the micro image-text array, which has a coupling effect, with the reflective curved mirror array, a dynamic effect is formed.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/29 - Securities Bank notes

Abstract

Provided are an optical anti-counterfeiting element and a product thereof, the optical anti-counterfeiting element includes: a substrate (1); a reflective curved mirror array (21), located on a surface of the substrate; and a micro graphic-text array (22), formed on the reflective curved mirror array, the micro graphic-text array and the reflective curved mirror array are located in a same plane and are overlapped without an interval, and after the reflective curved mirror array samples to synthesize the micro graphic-text array with a coupling effect with the same, a dynamic effect is formed.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/29 - Securities Bank notes

Abstract

Provided are an optical anti-counterfeiting element, a manufacturing method therefor, and an anti-counterfeiting product. The optical anti-counterfeiting element comprises a relief structure layer (2) comprising a first surface and a second surface opposite to each other, the second surface comprising a first area A and a second area B, the first area A having a first microstructure, the second area B having a second microstructure, and the first microstructure being different from the second microstructure; a first reflective layer (3) located in the first area A; and a second reflective layer (5) located at least in the second area B, when viewed from the side of the first surface, the first area A and the second area B having visual features respectively presented by the first reflective layer (3) and the second reflective layer (5). The present optical anti-counterfeiting element is partitioned by the relief structure layer, and different reflective layers are correspondingly provided in respective areas, such that when a user observes from the other side of the relief structure layer, different areas present visual features of corresponding reflective layers, thereby improving anti-counterfeiting capability.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/324 - Reliefs
• B42D 25/40 - Manufacture

Abstract

An optical anti-counterfeiting element and a manufacturing method therefor, and an anti-counterfeiting product. The optical anti-counterfeiting element comprises a microlens array layer (2) and a micrographic-text array layer (3). The micrographic-text array layer (3) comprises micrographic-text areas (A) and micrographic-text background areas (B); surface undulation shapes of the micrographic-text areas (A) and the micrographic-text background areas (B) are different; and/or height differences are set between the micrographic-text areas (A) and the micrographic-text background areas (B), so that under sampling synthesis, in the microlens array layer (2) and the micrographic-text array layer (3), the imaged graphic-text areas and/or graphic-text background areas have different visual characteristics. In particular, graphic-text and/or a graphic-text background changes from one color to another color as the viewing angle changes, thereby improving the anti-counterfeiting capability.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

An optical anti-counterfeiting element and an anti-counterfeiting product comprising an optical anti-counterfeiting element, the optical anti-counterfeiting element comprising: a substrate (1); a first light gathering element array, which is formed in a first region of a first surface (11) of the substrate (1), the first light element gathering array comprising one or more light gathering elements having a first focal length; and a second light gathering element array, which is formed in a second region of the first surface (11) of the substrate (1), the second light gathering element array comprising one or more light gathering elements having a second focal length that is different from the first focal length. The optical anti-counterfeiting element employs a plurality of light gathering element arrays to implement imaging on receiving screens (2, 3) of different focal lengths, thereby achieving the reproduction of hidden images.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• G02B 3/00 - Simple or compound lenses

Abstract

Disclosed are an optical anti-counterfeiting element and an anti-counterfeiting product. The optical anti-counterfeiting element includes: a substrate, the substrate including a first surface and a second surface opposite each other; a first micro-embossment structure at least partially covering the first surface, the first micro-embossment structure including a first micro-lens array and a first micro-graph array; and a second micro-embossment structure at least partially covering the second surface, the second micro-embossment structure including a second micro-lens array and a second micro-graph array; and wherein the first micro-lens array is configured to sample and synthesize the second micro-graph array, so as to form a first reproduced image, and the second micro-lens array is configured to sample and synthesize the first micro-graph array, so as to form a second reproduced image. According to the anti-counterfeiting element, a sampled and enlarged reproduced image may be observed from both sides of the substrate separately.

IPC Classes  ?

• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/324 - Reliefs
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product utilizing the same, the optical anti-counterfeiting element comprising: a substrate (12) including a first surface and a second surface opposite to each other; micro-sampling tools (11) on the first surface; and one or more micro graphic and text units formed on the second surface, wherein the micro graphic and text unit includes micro graphic and text strokes, the micro graphic and text strokes are arranged in a non-periodic and non-fixed-geometry manner, and when the second surface is observed through the micro-sampling tools, a stereoscopic animated anti-counterfeiting feature can be seen.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/373 - Metallic materials
• G02B 3/00 - Simple or compound lenses
• G02B 3/06 - Simple or compound lenses with non-spherical faces with cylindrical or toric faces
• G02B 30/27 - Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer’s left and right eyes of the autostereoscopic type involving lenticular arrays
• G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting
• G06T 3/60 - Rotation of whole images or parts thereof
• B42D 25/29 - Securities Bank notes
• B42D 25/328 - Diffraction gratingsHolograms

Abstract

An optical anti-counterfeiting element and an anti-counterfeiting product, comprising: a substrate (1); and a sampling layer (2) formed on a first surface (11) of the substrate (1), wherein the sampling layer (2) is a sampling unit array composed of sampling units distributed according to preset graphic information, the sampling unit array is aligned in a preset manner with a light-emitting pixel array composed of light-emitting pixels located on the second surface (12) side of the substrate (1), the sampling unit array is used to sample the light-emitting pixel array so as to present preset graphic information of a single color or a combination of multiple colors among the colors of the light-emitting pixels, and the light-emitting pixels of a single color or a combination of multiple colors appear as having a moiré magnification effect. With the help of display screens such as mobile phones, preset graphic information of the preset color that appears as having a moiré magnification effect is achieved, and the portable reading capabilities of the optical anti-counterfeiting feature is improved.

IPC Classes  ?

• B42D 25/328 - Diffraction gratingsHolograms

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate (1), the substrate comprising a first surface (11) and a second surface (12) which are opposite each other; a micro image layer (2) formed on the second surface of the substrate, the micro image layer comprising a micro image-text area (21) presenting preset image-text information and a background area (22), with the micro image-text area or the background area being at least partially covered with a small reflection surface (3), and the small reflection surface being covered with a color modulation structure (4); and a sampling layer (5) formed on the first surface of the substrate for carrying out sampling on the micro image layer and combining the sampled images into preset image-text information of a preset color presenting a moiré magnification effect. The anti-counterfeiting feature with colors and color changes presenting a moiré magnification effect can be generated without performing a coloring process, thereby improving the anti-counterfeiting capability and recognizability.

IPC Classes  ?

• B42D 25/328 - Diffraction gratingsHolograms

Abstract

Provided in the present invention are a printing apparatus and a printing method. The printing apparatus comprises an inkjet system. The inkjet system directly supplies ink to a printing plate system, the inkjet system can provide ink in at least two colors, the printing plate system is connected to an impression cylinder, a substrate is arranged between the printing plate system and the impression cylinder, and the impression cylinder and the printing plate system match for rolling. A continuous image-text on a printed product can appear in at least one continuous ink color without dots, or a dot-free continuous transition change between two or more ink colors, or a dot-free and seamless splicing effect between two or more ink colors.

IPC Classes  ?

• B41F 31/08 - Ducts, containers, supply or metering devices with ink-ejecting means, e.g. pumps, nozzles
• B41J 2/01 - Ink jet

Abstract

Provided are an optical anti-counterfeiting element and an anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate (1), which comprises a first surface (11) and second surface (12) that are opposite one another; and a surface micro-structure layer (2) that is formed on at least part of the first surface (11) of the substrate (1). At least part of the surface micro-structure layer (2) comprises a first set of at least a micro-prism (21), and the micro-prism (21) is simultaneously provided with a refractive and a reflective function. Each pixel of a first pattern corresponds to one or more micro-prism refractive illumination spots in the first set of micro-prisms (21) so that, when one side of an optical anti-counterfeiting element illuminates the optical anti-counterfeiting element, a reproduced first pattern can be observed by means of a receiving carrier at a specific distance on the other side, and a floating or sunken virtual image of the first pattern can be directly observed from both sides of the optical anti-counterfeiting element, respectively. The described optical anti-counterfeiting element can provide various anti-counterfeiting effects and improve the anti-counterfeiting performance of the anti-counterfeiting element.

IPC Classes  ?

• B42D 15/00 - Printed matter of special format or style not otherwise provided for

Abstract

Disclosed are an optical anti-counterfeiting element and an anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate (2); a plurality of reflective facets (3) formed on the substrate and used for reflecting and/or transmitting incident light to a pre-set position so as to present pre-set graphic and textural information at the pre-set position; and a color modulation structure (4) formed on the reflective facets and used for modulating the color of the light reflected and/or transmitted by the reflective facets, so that the pre-set graphic and textural information presents a pre-set color. The present invention can reproduce a color pre-set pattern under the irradiation of white light, improving the anti-counterfeiting capability and the recognition degree.

IPC Classes  ?

• B42D 25/309 - Photographs

Abstract

Provided are an optical anti-counterfeiting element and an anti-counterfeiting product, the optical anti-counterfeiting element comprises: a substrate (1); and a plurality of Fresnel structures (2) with preset lateral dimensions formed on the substrate (1), the plurality of Fresnel structures (2), when illuminated by a preset light source, being used to form preset graphic information in the transmission direction, and to present the preset graphic information with a relief effect in the reflection direction. The optical anti-counterfeiting element, when illuminated, reproduces a preset pattern from the transmission direction, and presents a relief effect from the reflection direction. The element improves anti-counterfeiting ability and recognition, and has a simple identification process.

IPC Classes  ?

• B42D 25/20 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose

Abstract

Provided are an optical anti-counterfeiting element and a fabrication method therefor. The optical anti-counterfeiting element comprising: an undulating structure layer (2), which comprises: a first region (A) having a first microstructure and a second region (B) having a second microstructure, the specific volume of the second microstructure being greater than the specific volume of the first microstructure; and a first plating layer (31), a dielectric layer (32), a second plating layer (33) and a protective layer (4) which are sequentially stacked on one side of the undulating structure layer (2), the first plating layer (31) and the dielectric layer (32) being located in the first region (A) and the second region (B), while the second plating layer (33) and the protective layer (4) are located in the first region (A) but not in the second region (B). The first plating layer (31), the dielectric layer (32) and the second plating layer (33) constitute a functional plating layer group (3), and the functional plating layer group (3) and the first microstructure have combined optical features in the first region (A), and the first plating layer (31) and the second microstructure have combined optical features in the second region (B).

IPC Classes  ?

• B42D 25/328 - Diffraction gratingsHolograms

Abstract

An optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element comprises: a substrate (2) having a first surface and a second surface opposite to each other; a phase microstructure formation layer (3) formed on the first surface, the microstructure formation layer (3) comprising at least a first region (41), the first region comprising at least a first microstructure (5), the first microstructure (5) comprising a raised portion and/or a recessed portion; and phase optically-variable platings (4a, 4b) covering the first microstructure (5) in the same shape, the optically-variable platings (4a, 4b) comprising phase reflective layers (4a1, 4b1), dielectric layers (4a2, 4b2), and absorption layers (4a3, 4b3) which are successively stacked, wherein the reflective layers (4a1, 4b1) or the absorption layers (4a3, 4b3) are in contact with the first microstructure (5), and the dielectric layers (4a2, 4b2) are obtained by coating or printing. The optical anti-counterfeiting element can realize different optically-variable color phase effects in different regions and different dynamic or relief feature regions.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/40 - Manufacture

Abstract

An optical anti-counterfeiting element (1) and an optical anti-counterfeiting product (0), relating to the optical anti-counterfeiting field. The optical anti-counterfeiting element comprises: a substrate (2), wherein the substrate has a first surface (21) and a second surface (22) that are opposite to each other, and at least a part of the region of the substrate is transparent; and a first semi-reflective and semi-transmissive coating (31), a medium layer (32), and a second semi-reflective and semi-transmissive coating (33) that are sequentially deposited on the first surface, wherein a ratio of the refractive index to the extinction coefficient of the first semi-reflective and semi-transmissive coating is different from that of the refractive index to the extinction coefficient of the second semi-reflective and semi-transmissive coating. When viewed from the first surface, the optical anti-counterfeiting element displays a bright first color; when viewed from the second surface, the optical anti-counterfeiting element displays a bright second color; when looked through, the optical anti-counterfeiting element displays a third color; when the optical anti-counterfeiting element is separately viewed from the first surface and the second surface and is tilted, a color change effect is displayed.

IPC Classes  ?

• B42D 25/20 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials
• B42D 25/324 - Reliefs

Abstract

An optical anti-counterfeit element, comprising: an undulating structure layer (2); the undulating structure layer comprises: a first area (A) having a first microstructure and a second area (B) having a second microstructure; the structural parameters of the second microstructure are greater than the structural parameters of the first microstructure; the undulating structural layer also comprises a third area (C) having a third microstructure; the structural parameters of the third microstructure are greater than the structural parameters of the second microstructure; a first plating layer (3) is arranged on the first area; a second plating layer (5) is arranged on the second area; and neither the first plating layer nor the second plating layer is arranged on the third area; viewed from one side of the optical anti-counterfeit element, the first area has the optical features of a combination of the first microstructure and the first plating layer, the second area has the optical features of a combination of the second microstructure and the second plating layer, and the third area has hollow features. The present optical anti-counterfeit element has excellent anti-counterfeit performance.

IPC Classes  ?

• B42D 25/40 - Manufacture
• B42D 25/324 - Reliefs

Abstract

An optical anti-counterfeiting element, and a manufacturing method thereof. The optical anti-counterfeiting element comprises: a substrate (2) having a first surface (21) and an opposite second surface (22); and an interference-type reflective coating located on the first surface (21) of the substrate (2). The interference-type reflective coating is located at a non-hollowed-out region (32), and not at a hollowed-out region (31), of the optical anti-counterfeiting element, and has a Fabry-Perot interferemeter structure. An absorbing layer (41) in the Fabry-Perot interferemeter structure is in contact with the substrate (2), and a material of the absorbing layer (41) is an alloy material. The invention uses an alloy material as the absorbing layer, such that the optical anti-counterfeiting element maintains a high color saturation level while achieving complete hollowing of an optically variable film, thereby solving the problem of the prior art in which the color saturation level compromises a hollowing operation, and enabling combinations of various optical anti-counterfeiting effects.

IPC Classes  ?

• B42D 25/40 - Manufacture
• B42D 25/324 - Reliefs

Abstract

Disclosed are an optical anti-counterfeiting element and a manufacturing method therefor. The optical anti-counterfeiting element comprises: a fluctuating structure layer (2), wherein the fluctuating structure layer (2) is provided with a first area (A), a second area (B) and a third area (C); the first area (A) is provided with a first micro-structure, the second area (B) is provided with a second micro-structure, and the third area (C) is a flat area without a structure; the specific volume of the second micro-structure is greater than that of the first micro-structure; the first area (A) and the third area (C) are each provided with a reflecting layer (31), a dielectric layer (32) and an absorbing layer (33) overlapping with each other, and the second area (B) is not provided with the reflecting layer; and a surface appearance of the side, away from the fluctuating structure layer, of the dielectric layer located on the first area (A) is obviously different from the surface appearance of the fluctuating structure layer. During reflecting observation on one side of the optical anti-counterfeiting element, the first area has a weak interference light variation effect or no interference light variation effect, and the third area has an obvious interference light variation effect; and during perspective observation, the second area has a hollowed-out effect.

IPC Classes  ?

• B42D 25/40 - Manufacture
• B42D 25/324 - Reliefs

Abstract

Provided are an optical anti-counterfeiting element and an optical anti-counterfeiting product including same. The optical anti-counterfeiting element (1) comprises: a substrate (2), the substrate (2) comprising a first surface (31) and a second surface (32) which are arranged in a mutually opposing manner; a sampling and compositing layer (21) formed on at least a portion of the first surface (31) of the substrate (2); a micro-image layer (22) formed on at least a portion of the second surface (32) of the substrate (2), the micro-image layer (22) comprising a surface micro-structure and a reflective layer (223) at least isomorphically covering the surface micro-structure, the surface micro-structure being an interference-type surface micro-structure (221) and/or a light absorption-type surface micro-structure (224). The sampling and compositing layer (21) can perform sampling and compositing on the micro-image layer (22) so as to form one or more macro composite images. The optical anti-counterfeiting element has the advantages of being easy to identify, and difficult to forge.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms
• G02B 5/18 - Diffracting gratings

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product comprising same. The optical anti-counterfeiting element (1) comprises: a base layer (101), with a surface of the base layer (101) comprising a first region; a first micro-relief structure (102) covering at least the first region and being at least semi-transparent; a plating (104) conformed to and covering at least one portion of the first micro-relief structure (102); and a first coating (103) at least partially covering the plating (104) and being at least translucent, wherein the refractive index of the first micro-relief structure (102) is different from the refractive index of the first coating (103), and the depth of the at least one portion of the first micro-relief structure (102) satisfies the following condition: when a light beam irradiates the at least one portion of the first micro-relief structure (102) at an incident angle, after the light beam passes through the at least one portion of the first micro-relief structure (102), the light with a wavelength or within a wavelength range in the light beam is constructively interfered with in a reflected light direction, such that a first color is presented in the reflected light direction for at least one portion of the optical anti-counterfeiting element. The optical anti-counterfeiting element has the advantages of being high reliable, easy to identify and hard to counterfeit.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/40 - Manufacture
• G02B 5/18 - Diffracting gratings
• B44F 1/04 - Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces after passage through surface layers, e.g. pictures with mirrors on the back

Abstract

Provided are an optical anti-counterfeiting element and an optical anti-counterfeiting product including same. The optical anti-counterfeiting element (1) comprises: a base layer (101); a colour function layer (103) located on the base layer; a first micro-relief structure (102) covering at least a portion of a first area (B) of the colour function layer, the first area being a partial area of the colour function layer; a plating layer (104) only covering the surface of the first micro-relief structure. The first micro-relief structure is defined such that when a light beam irradiates the first micro-relief structure at an incident angle, light of a wavelength or wavelength range in the light beam interferes constructively on a reflection direction. In addition, the colour function layer and the first micro-relief structure can provide optical characteristics having different colour characteristics. The optical anti-counterfeiting element has the advantages of being highly reliable, easy to identify, and difficult to forge.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B44F 1/08 - Designs or pictures characterised by special or unusual light effects characterised by colour effects

Abstract

Disclosed are an optical anti-counterfeiting element and an anti-counterfeiting product. The optical anti-counterfeiting element comprises: a base material (2), the base material (2) comprising a first surface and a second surface which are opposite each other; a first micro-relief structure at least partially covering the first surface, the first micro-relief structure comprising a first micro-lens array (3) and a first micro-graphics array (4); and a second micro-relief structure at least partially covering the second surface, the second micro-relief structure comprising a second micro-lens array (5) and a second micro-graphics array (6), wherein the first micro-lens array (3) can sample and synthesize the second micro-graphics array (6) so as to form a first reproduced image, and the second micro-lens array (5) can sample and synthesize the first micro-graphics array (4) so as to form a second reproduced image. By means of the anti-counterfeiting element, a sampled and enlarged reproduced image can be respectively observed from two sides of a base material.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

An optical anti-counterfeiting element (OCE) that can simultaneously present image effects and optically variable effects when observed from two opposite sides and that has a hollowed-out effect when observed through transmission. The OCE comprises: a transparent undulating structure layer that has a first undulating structure (FUS) and a second undulating structure (SUS). The depth-to-width ratio of the FUS is less than that of the SUS, and/or the specific volume of the FUS is less than that of the SUS. The FUS has formed thereon an interference optically variable coating (IOVC). The IOVC can comprise dielectric layers and a reflection layer interposed between two different partially transparent layers. When the IOVC is observed from the two sides, optically variable effects are presented at the two sides, and when the OCE is observed through transmission, an image defined by the boundary of the second undulating structure is presented.

IPC Classes  ?

• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

An optical anti-counterfeiting element and a manufacturing method therefor. The optical anti-counterfeiting element comprises: a transparent fluctuating structural layer (2), comprising a first fluctuating structure and a second fluctuating structure, the first fluctuating structure and the second fluctuating structure satisfying the following conditions: the depth-to-width ratio of the first fluctuating structure is smaller than that of the second fluctuating structure, and/or the specific volume of the first fluctuating structure is smaller than that of the second fluctuating structure; and an interference light variable coating (3) formed on the first fluctuating structure, wherein the interference light variable coating (3) presents an optically color-variable effect when being observed from two sides, and the optical anti-counterfeiting element presents an image formed by the boundary of the second fluctuating structure when being observed transmittingly. In this way, the optical anti-counterfeiting element is able to present an image effect and an optically color-variable effect when being observed from two sides, and presents a hollow effect when be observed transmittingly.

IPC Classes  ?

• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

An anti-counterfeiting pattern having an optically variable structure, comprising lithographic lines and gravure blind embossed relief lines printed on a carrier. The lithographic lines are a set of lithographic curve lines having a curvature, the widths of the lithographic curve lines changing from thick to thin, or thin to thick. The gravure blind embossed relief lines are a set of curve lines corresponding to the lithographic lines, and having the same curvature. The relief lines are overprinted on the lithographic lines with a width variation identical to that of said lithographic lines. Accurate overprinting of the two printing types forms a curved relief structure wherein the width of the lines changes continuously. When a printed product is rotated and observed, a continuously variable optical effect will be seen, which is visual, readily to identify, anti-copying and difficult to forgery.

IPC Classes  ?

• B42D 25/324 - Reliefs
• B42D 25/337 - Guilloche patterns
• B42D 25/425 - Marking by deformation, e.g. embossing
• B41M 3/00 - Printing processes to produce particular kinds of printed work, e.g. patterns
• D21H 21/48 - Elements suited for physical verification, e.g. by irradiation
• B41M 3/14 - Security printing
• D21H 21/40 - Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
• B42D 25/29 - Securities Bank notes
• B41M 1/10 - Intaglio printing
• B41M 1/06 - Lithographic printing

Abstract

A paper preparation method capable of controlling watermark brightness and a paper product with a high-brightness watermark. In the method, hole size and hole distribution of a mesh of a watermark mesh are adjusted to control retention of pulp fibers in a corresponding area during the papermaking process and thus control the brightness of a watermark in a paper obtained by the papermaking. The method is implemented by means of mesh pressing, and watermark plates used in the mesh pressing are divided into male and female molds. The watermark mesh is subjected to pressing in the mold such that the mesh surface becomes curved, and such that the extent of water-removal of the mesh surface in a high-brightness watermark area is different from that in other areas in a cylinder mold; primarily, at the web surface, water-removal at the web surface is reduced in a brighter area of the watermark, to the extent that there is no water removal in individual areas having the highest brightness.

IPC Classes  ?

• D21F 1/44 - Watermarking devices

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product utilizing the same, the optical anti-counterfeiting element comprising: a substrate (2) having a first surface (31) and a second surface (32) that are opposed to each other, a sampling and synthesizing layer (21) on a first surface (31) of the substrate (2); and a micro-image layer (22) on a second surface (32) of the substrate (2), the micro-image layer (22) including a first region at least partially covered with a coating (221) and a second region comprising at least two sub-regions each at least partially covered with a color function layer (222, 223), the color function layers (222, 223) in respective sub-regions and the coating (221) in the first region have different color characteristics, respectively, and the micro-image layer (22) can be sampled and synthesized by the sampling and synthesizing layer (21) to form an image. Such optical anti-counterfeiting element and optical anti-counterfeiting product are easy to identify and difficult to counterfeit.

IPC Classes  ?

• B42D 25/342 - Moiré effects
• B42D 25/21 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose for multiple purposes
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/364 - Liquid crystals
• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B44F 1/00 - Designs or pictures characterised by special or unusual light effects

Abstract

Disclosed are an optical security component and an optical security product utilizing the same. The optical security component comprises: a substrate (12) comprising a first surface and a second surface arranged opposite to each other; a micro-sampling tool (11) formed on the first surface; and one or more micro-pattern units formed on the second surface. The micro-pattern unit comprises micro-pattern components arranged in a manner of irregular and non-fixed geometric shapes. The micro-sampling tool (11) is utilized to observe a three-dimensional dynamic security feature on the second surface.

IPC Classes  ?

• B42D 25/324 - Reliefs

Abstract

Disclosed are an optical anti-counterfeiting component and an optical anti-counterfeiting product. The optical anti-counterfeiting component comprises: an at least partially translucent substrate (2) having a first surface (31) and a second surface (32) which are opposite to each other; a security image (22) formed at the second surface (32) of the substrate (2) and comprising a plurality of imaging pixel groups, the plurality of imaging pixel groups being arranged aperiodically and/or asymmetrically; and a sampling synthesis layer (21) with optical characteristics formed at the first surface (31) of the substrate (2), wherein a translucent portion of the substrate (2) and the sampling synthesis layer (21) are configured to present a target visual image corresponding to the imaging pixel groups. The present invention can at least solve a technical problem in the prior art in which periodically arranged micrographic arrays have poor anti-counterfeit performance and can be cracked easily.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

Disclosed are an anti-counterfeiting element and an anti-counterfeiting product. The anti-counterfeiting element comprises: a base material; and one or more magnetic units located on the base material, wherein the measurement width a1 of a magnetic code generated by at least a first magnetic unit in the one or more magnetic units is less than the visual width c1 of the first magnetic unit.

IPC Classes  ?

• G06K 19/06 - 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

Abstract

An anti-counterfeiting element and an anti-counterfeiting product. The anti-counterfeiting element comprises: a base material (10); and a magnetic region in a continuous state, which is constituted by one material and is arranged on the base material (10), wherein the magnetic region has multiple first regions (1) and second regions (2) arranged at intervals, and the residual magnetism of the first regions (1) is greater than that of the second regions (2). The anti-counterfeiting element can effectively hide magnetic encoding regions, and the manufacturing process is simple and is of low cost.

IPC Classes  ?

• G06K 19/06 - 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

Abstract

A double-sided satellite printing press, comprising a first satellite printing assembly for implementing multi-color overprinting on one surface of a paper sheet and a second satellite printing assembly for implementing both multi-color overprinting and multi-color line structure printing on the other surface of the paper sheet. The first satellite printing assembly and the second satellite printing assembly fit each other and simultaneously act on the paper sheet to complete double-sided printing on the paper sheet. A line structure plate cylinder (9) is disposed on the periphery of a second blanket cylinder (7), and an ink-collecting cylinder (8) having a color-collecting and ink-transferring function is used for providing ink to the line structure plate cylinder; the line structure plate cylinder transfers patterns to the second blanket cylinder, so as to implement line structure printing while completing overprinting on the paper sheet by means of the second blanket cylinder, thereby completing overprinting on one surface of the paper sheet and both overprinting and line structure printing on the other surface of the paper sheet by means of one printing.

IPC Classes  ?

• B41F 7/14 - Rotary lithographic machines for offset printing with two or more impression cylinders coacting with a single transfer cylinder

Abstract

A sheet-fed flexo printing machine comprises a first printing unit and a second printing unit for respectively printing on two surfaces of a material to be printed. The first printing unit comprises a first stamping roller (1), a first printing sheet transfer roller I (2), and a first printing sheet transfer roller II (3); the second printing unit comprises a second stamping roller (4), a second printing sheet transfer roller I (5), and a second printing sheet transfer roller II (6). The first printing sheet transfer roller I (2), the first printing sheet transfer roller II (3), the second printing sheet transfer roller I (5), and the second printing sheet transfer roller II (6) are configured as rollers with temperature control or quality inspection means. An even number of printing sheet transfer rollers are separately provided between and after the printing units corresponding to two surfaces of a material to be printed. On the one hand, printing on the two surfaces of the material to be printed is ensured by means of an even number of sheet transfer procedures, and on the other hand, by additionally endowing the printing sheet transfer rollers with a temperature control function and a borne material quality inspection function, the heat accumulation problem and the timeliness problem in quality control of a material to be printed are solved.

IPC Classes  ?

• B41F 5/16 - Rotary letterpress machines for printing on webs for multicolour printing

Abstract

Disclosed are an optical anti-counterfeiting element and an optical anti-counterfeiting product using the optical anti-counterfeiting element. The optical anti-counterfeiting element comprises: a substrate (2), where the substrate (2) comprises a first surface (31) and a second surface (32) opposite each other; a sampling and composing layer (21) arranged on the first surface (31) of the substrate (2); and a micro-image layer (22) arranged on the second surface (32) of the substrate (2). The micro-image layer (22) comprises a first area and a second area. The first area is at least partly covered with a coating layer (221). The second area comprises at least two subareas. The subareas are each at least partly covered with color function layers (222 and 223). The color function layers (222 and 223) in the subareas and the coating layer (221) in the first area respectively are provided with different color features. Also, the micro-image layer (22) can be sampled and composed by the sampling and composing layer (21) to form an image. This is characterized in being easy to identify and difficult to counterfeit.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B44F 1/00 - Designs or pictures characterised by special or unusual light effects

Abstract

Disclosed are a printing plate for an opposite intaglio printing process and a manufacturing method therefor. The printing plate for the opposite intaglio printing process is installed on a transfer printing or impression cylinder. The printing plate comprises a surface layer (1) and a bottom plate (2). The surface layer (1) comprises a first flexible film layer (11) and a second flexible film layer (12). The first flexible film layer (11), the second flexible film layer (12) and the bottom plate (2) are thermally laminated into a whole from top to bottom. The printing plate for the opposite intaglio printing process can prolong the service life of the printing materials for the opposite intaglio printing process, and accordingly the production efficiency of the opposite intaglio printing process is improved, and the printing cost is saved.

IPC Classes  ?

• B41N 1/22 - Curved printing plates, especially cylinders made of other substances
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind

Abstract

Disclosed are a pattern for enhancing a dynamic optical variable anti-counterfeiting effect and a manufacturing method therefor. The pattern for enhancing a dynamic optical variable anti-counterfeiting effect is composed of a full-version colored printing body and a colored printing body with high and narrow three-dimensional line patterns; the colored printing body with the high and narrow three-dimensional line patterns is stacked and printed on the full-version colored printing body; the colored printing body with the high and narrow three-dimensional line patterns is in a shape of combined lines comprising curved lines, straight lines, a dot matrix or a combination thereof; a line clearance is 100 to 300% of a line width, and a line height is 10 to 100% of the line width; and the color of the colored printing body with the high and narrow three-dimensional line patterns and the color of the full-version colored printing body are gamut-space complementary colors or are obvious in visual difference. The pattern tilts or rotates along with printing products and generates a bright color change along with a visual continuous dynamic optical variable effect namely inclination. A strong color drifting effect is generated by horizontal rotation. The pattern is visible, easy to recognize, resistant to copying, difficult to counterfeit, and suitable for industrial application.

IPC Classes  ?

• B41M 3/14 - Security printing

Abstract

An anti-counterfeiting element having a multi-branch anti-counterfeiting structure. The multi-branch anti-counterfeiting structure comprises at least one node. Each node has at least three anti-counterfeiting branches, and a part of the at least one anti-counterfeiting branch has at least two layers of anti-counterfeiting composite structures. The method for manufacturing the anti-counterfeiting element comprises: providing a thermoplastic tubular material, conducting extrusion deformation and/or adhesive shaping processing on the thermoplastic tubular material, and cutting the processed material in the length direction. The anti-counterfeiting element can be distributed in the whole safety paper or distributed in a preset region of the safety paper.

IPC Classes  ?

• D21H 21/40 - Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
• B32B 27/00 - Layered products essentially comprising synthetic resin
• B42D 25/355 - Security threads
• B42D 25/36 - Identification or security features, e.g. for preventing forgery comprising special materials

Abstract

An optical anti-counterfeiting element and an optical anti-counterfeiting product. The optical anti-counterfeiting element (1) comprises: a substrate (101); a sub-wavelength surface micro-structure (1021) and an optical reflection small surface (1022) formed on an upper surface (102) of the substrate; and a multilayered structure plating (103) formed on the sub-wavelength surface micro-structure (1021) and the optical reflection small surface(1022). In the case where the same multilayered structure plating (103) is used, contrasting optical characteristics are formed at the region where the sub-wavelength surface micro-structure (1021) and the multilayered structure plating (103) are, and the region where the optical reflection small surface (1022) and the multilayered structure plating (103) are, such that the optical anti-counterfeiting element or the optical anti-counterfeiting product with the anti-counterfeiting element can be easily identified and has a relatively strong anti-counterfeiting capability.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

An odd-form coin. The odd-form coin is polygonal and is made of a solid metal material. The diameters of the circumcircles of the odd-form coin have a tolerance value being ±0.04 mm, and have the diameter differences being smaller than or equal to 0.06 mm. The surface of the odd-form coin is provided with a protruding portion along the circumference. The protruding portion has internal and external clear edges, and the phase tolerance of the internal and external clear edges is ±1°. Patterns are formed on the side wall of the edge of the odd-form coin, and the patterns are pits.

IPC Classes  ?

• A44C 21/00 - CoinsEmergency moneyBeer or gambling coins or tokens, or the like

Abstract

An optical anti-counterfeiting element with a full parallax diffraction optical variable image. The optical anti-counterfeiting element comprises: a base layer (101); and an optical component (102) at least partially covering a surface of the base layer (101), the optical component (102) having a micro relief structure, so that when a beam of white light is irradiated onto the optical component (102), the optical component (102) presents a full parallax image under the effect of the micro relief structure. A micro relief structure is obtained with a phase plate, so that a full parallax diffraction optical variable image can be reproduced under the condition of white light illumination.

IPC Classes  ?

• B42D 25/29 - Securities Bank notes
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

Security threads or stripes include a substrate and i) a first optically variable layer imparting a first different color impression at different viewing angles, ii) a second optically variable layer imparting a second different color impression at different viewing angles, iii) a first color constant layer having a color matching the color impression of the first or second optically variable layer at a first viewing angle, iv) a second color constant layer having a color matching the color impression of the first or second optically variable layer at a second viewing angle, and v) one or more material-free regions, wherein the first optically variable layer, the second optically variable layer, the first color constant layer, the second color constant layer and the one or more material-free regions are jointly visible from one side of the security thread or stripe.

IPC Classes  ?

• B42D 25/00 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/355 - Security threads
• B42D 25/40 - Manufacture
• D21H 21/42 - Ribbons or strips
• D21H 21/44 - Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
• D21H 21/48 - Elements suited for physical verification, e.g. by irradiation

Abstract

A waste liquid circulation plate wiping apparatus and an implementation method therefor. The device comprises a plate wiping roller (7), at least one piece of cleaning substrate (6), two spray nozzles (5a, 5b), i.e. a front spray nozzle and a rear spray nozzle, a water retaining device (2), a new-old liquid separation device (3), a waste liquid circulation device, a liquid level detection device (11), a new plate wiping liquid back flush device and a soft water back flush device. The device and method achieve the purposes of saving water and reducing energy in a manner of "separation - collection - circulation - reuse", thereby having relatively high social and economic benefits.

IPC Classes  ?

• B41F 35/02 - Cleaning arrangements or devices for forme cylinders

Abstract

In the field of protection of value documents and value commercial goods, the present disclosure relates to the field of security threads or stripes to be incorporated into or onto security documents, and security documents having security threads or stripes. The security threads or stripes include i) first optically variable layer imparting a first different color impression at different viewing angles, ii) second optically variable layer imparting a second different color impression at different viewing angles, iii) first color constant layer having a color matching color impression of the first or second optically variable layer at a first viewing angle, iv) second color constant layer having a color matching color impression of the first or second optically variable layer at a second viewing angle, and v) a substrate. The layers are jointly visible from one side of the security thread or stripe.

IPC Classes  ?

• B42D 25/00 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof
• B42D 25/351 - Translucent or partly translucent parts, e.g. windows
• B42D 25/355 - Security threads
• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B41M 3/14 - Security printing
• G09F 19/14 - Advertising or display means not otherwise provided for using special optical effects displaying different signs depending upon the view-point of the observer
• G09F 3/00 - Labels, tag tickets, or similar identification or indication meansSealsPostage or like stamps
• B42D 25/45 - Associating two or more layers

Abstract

An optical anti-counterfeiting element comprises a base material (11). The base material (11) has a first surface and a second surface which are opposite to each other. The first surface is covered thereon with a micro-sampling tool (12); one part of the second surface is a micro image-text formed by a micro relief structure (13), and the other part thereof is a flat structure which does not form a micro image-text and/or a micro relief structure (14) which is different from the micro relief structure forming the micro image-text. The flat structure which does not form the micro image-text and the micro relief structure (14) different from the micro relief structure forming the micro image-text are homomorphically covered thereon with a first plating (15), the micro relief structure (13) forming the micro image-text is homomorphically covered thereon with a second plating (16), and the micro image-text is sampled by the micro sampling tool (12). Also provided is an anti-counterfeiting product using the optical anti-counterfeiting element and a preparation method therefor.

IPC Classes  ?

• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/328 - Diffraction gratingsHolograms
• B42D 25/29 - Securities Bank notes
• B42D 25/324 - Reliefs
• B42D 25/40 - Manufacture
• G02B 3/00 - Simple or compound lenses
• G02B 5/18 - Diffracting gratings
• G07D 7/12 - Visible light, infrared or ultraviolet radiation
• B42D 25/45 - Associating two or more layers
• B42D 25/373 - Metallic materials
• G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency

Abstract

An anti-counterfeiting pattern having an optically variable structure, comprising lithographic lines (1) and gravure blind embossed relief lines (2) printed on a carrier. The lithographic lines (1) are a set of lithographic curve lines having a curvature, the widths of the lithographic curve lines changing from thick to thin, or thin to thick. The gravure blind embossed relief lines (2) are a set of curve lines corresponding to the lithographic lines, and having the same curvature. The relief lines (2) are overprinted on the lithographic lines (1) with a width variation identical to that of said lithographic lines (1). Accurate overprinting of the two printing types forms a curved relief structure wherein the width of the lines changes continuously. When a printed product is rotated and observed, a continuously variable optical effect is seen.

IPC Classes  ?

• B41M 3/14 - Security printing
• B41M 3/06 - Veined printingsFluorescent printingsStereoscopic imagesImitated patterns, e.g. tissues, textiles
• B42D 25/29 - Securities Bank notes
• B42D 25/30 - Identification or security features, e.g. for preventing forgery

Abstract

Provided are an anti-counterfeit fiber, a preparation method therefor and a safety paper and a safety article using same. The anti-counterfeit fiber has a multilayered structure in the length direction, wherein any two adjacent layers of the multilayered structure are fixedly bonded, and at least one layer of which has different chemical components from the adjacent layer thereof, and at least one layer of which contains an additive having anti-counterfeit information inside. The method for producing the anti-counterfeit fiber is as follows: a sheet having a multilayered structure in the thickness direction is firstly prepared; then the sheet is processed into an anti-counterfeit fiber having a multilayered structure in the length direction through cutting. The anti-counterfeit characteristic of the anti-counterfeit fiber of a safety paper using the anti-counterfeit fiber and a safety article produced with the safety paper cannot be reproduced using methods of printing and the like, enhancing the anti-counterfeit ability.

IPC Classes  ?

• D21H 21/42 - Ribbons or strips
• B42D 25/00 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof

Abstract

An optical anti-counterfeiting element and products using same. The optical anti-counterfeiting element (1) comprises a base material (2), a face mirror (3) is at least partially covered on an upper surface (21) of the base material (2), a cross-section of the face mirror (3) is an arbitrary curved surface structure or a combination thereof that is capable of regulating incident light beams, a plating layer (4) is covered on a surface of the face mirror (3), and the plating layer (4) and the face mirror (3) cooperate with each other to obtain an expected optical effect. The optical anti-counterfeiting element and products using same overcome defects that in the prior art, the fabrication process is complex, special devices of high costs are required, and the appearance is difficult to control.

IPC Classes  ?

• G02B 5/10 - Mirrors with curved faces

Abstract

The invention relates to the technical field of coinage, and particularly relates to electroplating liquid of multi-layer cyanide-free electroplated copper-tin alloy plating, an electroplating technology and a coin produced by the technology. The pyrophosphate electroplating solution of multi-layer cyanide-free electroplated copper-tin alloy plating provided by the invention comprises a cyanide-free brass tin major brightening agent consisting of solutes brightener A and brightener B, wherein the concentration of the brightener A in the major brightening agent is 1-10g/L, and the concentration of the brightener B in the major brightening agent is 0.05-0.5g/L. By adopting the pyrophosphate electroplating solution and the electroplating technology of multi-layer cyanide-free electroplated copper-tin alloy plating, a coin product of which the plating thickness is over 20 microns and the plating is uniform and dense can be obtained. After high-temperature thermal treatment, the coil plating is of a single-layer structure; the content of tin in the single-layer plating is 11- 14% by weight; the plating appearance is in uniform golden yellow color without chromatic aberration, and the problem acknowledged by the electroplating section at present that a single- layer cyanide-free electroplated alloy plating is relatively thin is solved.

IPC Classes  ?

• C25D 3/58 - ElectroplatingBaths therefor from solutions of alloys containing more than 50% by weight of copper
• C25D 3/10 - ElectroplatingBaths therefor from solutions of chromium characterised by the organic bath constituents used
• C25D 3/26 - ElectroplatingBaths therefor from solutions of cadmium

Abstract

The present invention relates to the technical field of coinage, and particularly to a plating solution and a plating process for a multi-layer cyanide-free plating copper-tin alloy coating, and coins made by the process. The pyrophosphate plating solution for a multilayer cyanide-free plating copper-tin alloy coating of the present invention comprises a cyanide-free main brightener based on tin-brass consisting of brighteners A and B, and the concentration of the brightener A in the main brightener is 1-10 g/L; the concentration of the brightener B in the main brightener is 0.05-0.5 g/L. With this pyrophosphate plating solution and the plating process for a multi-layer cyanide-free plating copper-tin alloy coating, the thickness of the coating of more than 20 μm can be achieved, and coin products with a dense and uniform coating can be obtained. A coating on a coin formed after high-temperature heat treatment has a single-layer structure, the content of tin in the single-layer coating by weight is 11% to 14%; the appearance of the coating is even and golden without chromatic aberration. Therefore, the well-recognized difficult problem in the plating industry that a single-layer cyanide-free plating alloy coating is thin is solved.

IPC Classes  ?

• C25D 3/58 - ElectroplatingBaths therefor from solutions of alloys containing more than 50% by weight of copper
• C25D 3/10 - ElectroplatingBaths therefor from solutions of chromium characterised by the organic bath constituents used
• C25D 3/26 - ElectroplatingBaths therefor from solutions of cadmium

Abstract

A more sophisticated optically variable security thread or stripe was provided. It could be used in the field of anti-counterfeiting, and comprised: a substrate and i ) a first optically variable layer (1) imparting a first different color impression at different viewing angles, ii )a second optically variable layer (2) imparting a second different color impression at different viewing angles, iii)a first color constant layer (4) having a color matching the color impression of the first or second optically variable layer at a first viewing angle, iv) a second color constant layer (5) having a color matching the color impression of the first or second optically variable layer at a second viewing angle, and v ) one or more material-free regions (0), wherein the first optically variable layer (l), the second optically variable layer (2), the first color constant layer (4), the second color constant layer (5) and the one or more material-free regions (0) are jointly visible from one side of the security thread or stripe. A process for making said security thread or stripe was also disclosed.

IPC Classes  ?

• D21H 21/42 - Ribbons or strips
• D21H 21/44 - Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods

Abstract

The present invention discovers a security thread or stripe. The security thread or stripe comprises i) a first optically variable layer (1,8) imparting a first different color impression at different viewing angles, ii) a second optically variable layer (2,9) imparting a second different color impression at different viewing angles, iii) a first color constant layer (4,6) having a color matching the color impression of the first or second optically variable layer at a first viewing angle, iv) a second color constant layer (5,7) having a color matching the color impression of the first or second optically variable layer at a second viewing angle, and v) a substrate, wherein the first optically variable layer, the second optically variable layer, the first color constant layer and the second color constant layer are jointly visible from one side of the security thread or stripe.

IPC Classes  ?

• B42D 15/00 - Printed matter of special format or style not otherwise provided for
• G09F 3/02 - Forms or constructions
• B44F 1/08 - Designs or pictures characterised by special or unusual light effects characterised by colour effects
• B41M 3/14 - Security printing

Abstract

An optical anti-counterfeiting element (1) and an anti-counterfeiting product using the optical anti-counterfeiting element (1). The optical anti-counterfeiting element (1) comprises a base material (2), a surface relief structure layer (3) and a color function layer (4). The base material (2) comprises a first surface (21) and a second surface (22) opposite to each other, and the surface relief structure layer is capable of modulating directions of incident light and light from the color function layer (4). The base material (2), the surface relief structure layer (3) and the color function layer (4) are arranged under one of the following conditions: the first surface (21) of the base material (2) is at least partially covered with the surface relief structure layer (3), and the second surface (22) of the base material (2) is at least partially covered with the color function layer (4); or the first surface (21) of the base material (2) is at least partially covered with the color function layer (4), and a surface of the color function layer (4) is at least partially covered with the surface relief structure layer (3); or the first surface (21) and the second surface (22) of the base material (2) are both at least partially covered with the color function layer (4), and a surface, of the color function layer (4), located on the first surface (21) is at least partially covered with the surface relief structure layer (3).

IPC Classes  ?

• B42D 15/00 - Printed matter of special format or style not otherwise provided for
• G02B 5/18 - Diffracting gratings
• G02B 5/28 - Interference filters
• G09F 3/02 - Forms or constructions

Abstract

An optical anti-counterfeit element comprises a base material (3). The base material (3) comprises a first surface (31) and a second surface (32). A part of areas on the first surface (31) are of a sub-wavelength relief structure, and a part of the areas are of a flat surface structure. A first dielectric layer (101), a second dielectric layer (102), and a third dielectric layer (103) are successively stacked on the sub-wavelength relief structure and the flat surface structure. From a specific observing angle, the color of areas of the sub-wavelength relief structure is the same as that of areas of the flat surface structure, and from another observing angle, the color of the areas of the sub-wavelength relief structure is different from that of the areas of the flat surface structure. Also provided is a method for preparing an optical anti-counterfeit element. The optical anti-counterfeit element overcomes the defects that the process is complex and a coating thickness is difficult to be accurately controlled for two coating structures to implement color matching in the prior art.

IPC Classes  ?

• B44F 1/12 - Securities or banknotes as far as the design or protection against forgery is of importance
• G02B 5/18 - Diffracting gratings

Abstract

An optical anti-counterfeiting element comprises a base material (11). The base material (11) has a first surface and a second surface which are opposite to each other. The first surface is covered thereon with a micro-sampling tool (12); one part of the second surface is a micro image-text formed by a micro relief structure (13), and the other part thereof is a flat structure which does not form a micro image-text and/or a micro relief structure (14) which is different from the micro relief structure forming the micro image-text. The flat structure which does not form the micro image-text and the micro relief structure (14) different from the micro relief structure forming the micro image-text are homomorphically covered thereon with a first plating (15), the micro relief structure (13) forming the micro image-text is homomorphically covered thereon with a second plating (16), and the micro image-text is sampled by the micro sampling tool (12). Also provided is an anti-counterfeiting product using the optical anti-counterfeiting element and a preparation method therefor.

IPC Classes  ?

• B42D 15/00 - Printed matter of special format or style not otherwise provided for
• B42D 25/30 - Identification or security features, e.g. for preventing forgery
• B42D 25/378 - Special inks
• G09F 3/02 - Forms or constructions

Abstract

An associated printing apparatus (100) is disclosed. The printing apparatus (100) comprises a screen printing unit (4), an orientation unit (2) for an inked magnetic sheet, a relief printing unit (1), and at least a set of ink light-cure unit (3). The screen printing unit (4), the orientation unit (2) for and inked magnetic sheet and the relief printing unit (1) are arranged in order. The connection among the said units is implemented by a sheet transferring system. Since the units are located in one printing apparatus, the sheet only needs to be transferred once to finish such procedures as screen printing, magnetic orientation, and relief printing in succession, thereby reducing the manufacturing cost. Compared to the production with single machine, the associated printing apparatus (100) occupies a smaller area and enables a shorter production line.

IPC Classes  ?

• B41F 19/02 - Apparatus or machines for carrying out printing operations combined with other operations with embossing
• B41F 13/22 - Means for cooling or heating forme or impression cylinders
• B41F 13/193 - Transfer cylindersOffset cylinders
• B41F 21/10 - Combinations of transfer drums and grippers

Abstract

An optical anti-counterfeiting element (1) comprises a base material (2), a micro relief structure that is located on a first surface of the base material and at least partially covers the first surface of the base material, and a reflection layer (5) that is located on a second surface of the base material and at least partially covers the second surface of the base material. The micro relief structure comprises a microlens array (3) and a micro image-text array (4). The micro image-text array is nested in the microlens array, and is located at the same plane with the microlens array, but does not coincide with the microlens array. The microlens array can perform sampling and synthesizing on the micro image-text array through the reflection layer, so as to form a reproduced image. The optical anti-counterfeiting element overcomes the defects of highly difficult manufacturing, a complex process, low process controllability, and the incapability of ensuring strict alignment between the micro image-text array and the microlens array. Further provided is a product using the optical anti-counterfeiting element.

IPC Classes  ?

• G02B 27/10 - Beam splitting or combining systems
• B42D 15/00 - Printed matter of special format or style not otherwise provided for
• B44F 1/12 - Securities or banknotes as far as the design or protection against forgery is of importance

Abstract

Disclosed are a method and device for ink transfer and feed, and a printing apparatus comprising the device. The device for ink transfer and feed comprises: at least one set of ink feed mechanisms, each set comprising at least an ink supply device, a colour mould roller and an ink transfer roller; the ink transfer roller is connected to a plate cylinder; the ink feed mechanism and the plate cylinder are driven by first and second driving systems, respectively. During a stipulated period, the plate cylinder rotates at a constant speed, and the ink transfer roller can rotate at a variable speed with respect to the plate cylinder, such that the ink transfer roller is offset from the ink transfer position of the plate cylinder by a set spacing, and the offset spacing can be adjusted according to the web requirements of the product to be printed, without the need to exchange the colour mould roller, ink transfer roller and plate cylinder, etc. Hence, the present invention can ensure sufficient ink supply from the ink feed mechanism to the paper to be printed and meet the requirements for printing various products very well, greatly improving the printing quality and productive efficiency.

IPC Classes  ?

• B41F 31/00 - Inking arrangements or devices
• B41F 5/00 - Rotary letterpress machines

Abstract

The present invention provides a security functional thin film and a security product containing such a thin film. The security functional thin film is of an amorphous structure, and possesses soft magnetic characteristics. Large Barkhausen effect can be detected along the in-plane preferred direction of magnetization; and the Large Barkhausen effect significantly attenuates, or no such signal can be detected, in a direction perpendicular to the in-plane preferred direction of magnetization. The thin film has a thickness of 20-300 nm, and the thin film also possesses element encoding characteristics that can be authenticated by experts. The security functional thin film of the present invention can be fabricated by magnetron sputtering web coating process. The security product provided by the present invention has a security information layer formed of the security functional thin film, and can be combined with other security characteristics for use in fabricating security materials such as security threads, security tapes, paper security strip-like inserts, or security labels, and others. Compared with conventional anti-counterfeiting technologies, the instant security functional thin film has more hidden security information, and facilitates enhancement of safety performance of security products.

IPC Classes  ?

• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance

Abstract

An anti-forge film with multi-layers for paper currency, securities, certifications and the like is a kind of magnetic coding film. A magnetic coding layer of the film comprises a metallic chrome layer which is provided with coding patterns and an amorphous membrane layer which is deposited on the meteallic layer. The electromagnetic characteristics of the area of the magnetic coding layer in which the chrome layer exists is notably different from that of the area of the magnetic coding layer in which the chrome layer do not exist. A solution of coding by 0 and 1 is suggested, and the covertness of the anti-forge film has improved. A complex product that makes from said magnetic coding film having one or more lines of anti-forge labels is also suggested.

IPC Classes  ?

• G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
• H01F 10/00 - Thin magnetic films, e.g. of one-domain structure
• G09F 3/00 - Labels, tag tickets, or similar identification or indication meansSealsPostage or like stamps

Abstract

Disclosed herein are a counterfeit-proof functional film (20) and a counterfeit-proof product including the same. The film (20) possesses an amorphous structure and it has a character of soft-magnetic. A large barkhausen can be examined in the film along its easy direction of magnetization, but it obviously weakens or can not be examined in the film in a direction perpendicular to the direction of the easy axis. The film (20) has a thickness of 20-300nm. The film (20) also comprises an element code characteristics for expert identification. This film (20) may be produced by magnetic-control sputtering coiling film coating process.

IPC Classes  ?

• H01F 10/13 - Amorphous metallic alloys, e.g. glassy metals
• G11B 5/02 - Recording, reproducing or erasing methodsRead, write or erase circuits therefor
• B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatingsLayered products designed for particular purposes not covered by another single class
• G09F 3/00 - Labels, tag tickets, or similar identification or indication meansSealsPostage or like stamps

Abstract

Anti-falsification watermark paper, a method of making the same and the apparatus for performing the method is disclosed. The method comprises the following steps. The moist paper is predried after shaping step. The predried paper is pressed by a dandy roll or a plate which comprising concave, bulgy or scraggy patterns in part or in full to form watermarks. The moist paper is redried after the pressing step.

IPC Classes  ?

• D21F 1/44 - Watermarking devices
• D21F 1/46 - Dandy rolls