Classifications

• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
  • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
  • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
  • G03H1/024—Hologram nature or properties
  • G03H1/0244—Surface relief holograms
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
  • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
  • G03H1/0005—Adaptation of holography to specific applications
  • G03H1/0011—Adaptation of holography to specific applications for security or authentication
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
  • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
  • G03H1/04—Processes or apparatus for producing holograms
  • G03H1/18—Particular processing of hologram record carriers, e.g. for obtaining blazed holograms
  • G03H2001/187—Trimming process, i.e. macroscopically patterning the hologram
  • G03H2001/188—Demetallisation, i.e. removing the enhancing metallic layer
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
  • G03H2210/00—Object characteristics
  • G03H2210/50—Nature of the object
  • G03H2210/54—For individualisation of product
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
  • G03H2250/00—Laminate comprising a hologram layer
  • G03H2250/36—Conform enhancement layer
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
  • G03H2250/00—Laminate comprising a hologram layer
  • G03H2250/40—Printed information overlapped with the hologram

Definitions

• the present invention relates to the design of a holographic element and to a method for its manufacture.
• the i-Met holographic element is equipped with features that complicate its falsification, as well as interchangeable information, the use of which is necessary, in particular, when numbering and individualizing holograms on documents of certain individuals or products, in order to protect against marking various documents, including identity cards, banknotes, checks, excise stamps, tickets, etc.
• the holographic element that contains the base in the form of a polymer or polycarbonate metallized film on which there is an optically transparent demetallized region — a region with a removed metal layer and an optically opaque metallized region with a hologram formed in in the form of a holographic microrelief of protrusions and grooves on a metal layer, and the boundaries of the demetallized area and metallized area with a hologram coincide with the boundaries of the holographic relief [Ukrainian Patent Ne 83449 for invention, IPC (2006) B23D15 / 08 (2006.01), B42D15 / 00, B42D15 / 10 (2006.01), G01 H1 / 04 (2006.01), G03H1 / 00, Publ. 07/10/2008, bull. Ns 13].
• a holographic element which includes the operation of forming on the surface of a base made of a metallized polymer film, a section with a hologram in the form of a holographic microrelief from alternating protrusions and grooves, and a demetallized section - area with the removed metal layer, while previously on the surface of the base form at least two sections with with a holographic microrelief, one of the sections is impregnated with a protective liquid, for example, paint, the area impregnated with a protective liquid is held until the protective liquid has cured, the surface of the metallized film is treated with a chemical reagent on the side of
• the disadvantage of the described method is the lack of operations for applying to the holographic element and storing on it replaceable information protected from fakes or unauthorized intrusions, the use of which is necessary, in particular, for numbering and individualization of holograms of certain persons or products.
• the basis of the proposed inventions is the task of developing such a holographic element and a method for its manufacture, which would allow creating a section on the holographic element for removable information, for example, such as numbering and individualization of holograms for documents of certain persons or products, protected against forgery or unauthorized intrusion and at the same time one that does not would interfere with the visual perception of the hologram of the holographic element.
• the problem is solved by creating additional metallized areas in the form of letters and / or numbers, or patterns, intended for use as replaceable information.
• the proposed one like the well-known holographic element, contains a base in the form of a polymer or polycarbonate metallized film on which there is an optically transparent demetallized region — a region with a removed metal layer, and an optically opaque metallized region with a hologram formed in the form of a holographic microrelief of protrusions and grooves on a metal layer, and the boundaries of the demetallized portion and the metallized portion with the hologram coincide with the boundaries of the holographic elefa, and according to the invention, the holographic element is formed on an additional metallized portion.
• a feature of the proposed holographic element is that the additional metallized area is completely located within the boundaries of the demetallized area.
• a feature of the proposed holographic element is that the additional metallized portion and the metallized portion with a holographic relief partially overlap each other.
• a feature of the proposed holographic element is that the additional metallized area is made in the form of letters and / or numbers.
• a feature of the proposed holographic element is that the additional metallized area is made in the form of an encoded image with the ability to read it using appropriate devices.
• a feature of the proposed holographic element is the fact that the additional metallized area is - made - in the form of a picture.
• a feature of the proposed holographic element is that the additional metallized area is made in the form of a trademark of the manufacturer or customer.
• the proposed, as well as the known method of manufacturing a holographic element includes forming on the surface of a base made of a metallized polymer film, from the metal layer side, a section with a hologram in the form of a holographic microrelief from alternating protrusions and grooves, and a demetallized section - a section with a removed metal layer, this previously formed on the surface of the base, at least two sections with a holographic microrelief, one of the sections is impregnated with a protective with a liquid, for example, with paint, a section impregnated with a protective liquid is held until the protective liquid is cured, the surface of the metallized polymer film on the metal surface side is subjected to chemical treatment to etch the metal layer from the base surface free of the protective liquid, and a holographic element is obtained in which the boundaries of demetallized plot and metallized plot with a hologram coincide with the boundaries of the holographic relief, and, according to the invention, in the
• a feature of the proposed method is the fact that an additional metallized area is created by offset printing on the metal layer of the film.
• An additional metallized area is removable information, for example, such as numbering or individualization of holograms for documents of certain persons or products, made by metallization in the form of letters, letters or numbers, or coded numbering, or graphic image, or data specified by the customer.
• the holographic image is above this marking and is not distorted by it, does not block or destroy the hologram, but makes it possible to add additional replaceable information to a specific holographic element, for example, sequential numbering, during the manufacture of a series of holographic elements. If you try to remove or change such markings, both the metallization layer and the hologram will be damaged, which means this action will not go unnoticed.
• the presence of such an additional metallized area significantly increases the protective properties of the holographic element and at the same time provides, in particular, the opportunity to create a mechanism for accounting and control of products or documents protected by holographic elements.
• the proposed holographic element contains a set of essential features - structural elements of the device, each of which is known today, and the method - manufacturing a holographic element - a set of essential features of the proposed method - technological methods, means and materials, - each of which is famous today.
• the holographic element and the method of its manufacture can be used in many sectors of the national economy, in particular, to protect against forgery of bank and credit cards or identity cards, passes, tickets, letterheads of securities, you can do the conclusion that the proposed solutions meet the criteria of the invention of "industrial applicability".
• a new result obtained by using the proposed solutions is to complicate the possibility of falsification or unauthorized reproduction of a holographic element by creating an unconventional visually perceptible sign on it - an additional metallized area observed by the controller simultaneously with the hologram and made in the form of a letter (letter) and ⁇ or number , or drawing,
• FIG. 1-6 show examples of the implementation of the additional metallized area.
• FIG. 7-10 sequentially shown the stages of manufacturing the proposed holographic element.
• the proposed holographic element contains a base 1 in the form of a polymer or polycarbonate metallized film, on which there is an optically transparent demetallized portion 2 with a removed metal layer and an optically opaque metallized portion 3 with a hologram formed in the form of a holographic microrelief of alternating protrusions and grooves on the metal base layer.
• a base 1 in the form of a polymer or polycarbonate metallized film, on which there is an optically transparent demetallized portion 2 with a removed metal layer and an optically opaque metallized portion 3 with a hologram formed in the form of a holographic microrelief of alternating protrusions and grooves on the metal base layer.
• An additional metallized portion 4 is formed on the holographic element.
• the additional metallized portion 4 can be used to apply exchangeable information in the form of a number or image.
• the polymer film 1 which is the base of the proposed holographic element
• a polymer film made by API Foils / cm can be used. website www.apigroup.com/.
• aluminum foil is used as a metal layer on the base 1.
• the optimal geometrical parameters of the hologram microrelief in the metallized area 3 are as follows: height is 0.1-0.3 micrometers, and the period of alternation of protrusions or grooves is 0.3-4.0 micrometers. Only with With such geometric parameters of section 3, the holographic relief becomes a hologram - when observed, it shimmers with rainbow colors.
• FIG. 1-6 show examples of additional metallized section 4 on the proposed holographic element. Namely, in FIG.
• FIG. 1 shows an additional metallized portion 4 completely located within the boundaries of the demetallized portion 2.
• FIG. 2 shows an additional metallized portion 4 and a metallized portion 3 with a holographic relief that partially overlap each other.
• FIG. 3 shows an additional metallized section 4 made in the form of letters and numbers.
• FIG. 4 shows an additional metallized section 4, made in the form of letters and numbers, which is partially blocked by a holographic relief.
• FIG. 5 shows an additional metallized section 4 made in the form of a pattern.
• FIG. 6 shows an additional metallized section 4, made in the form of a trademark of the manufacturer.
• An additional metallized section 4 can also be made in the form of a coded image of a QR code or barcode, made with the possibility of reading it using a smartphone.
• position 5 shows a layer of protective liquid on the surface of the manufactured holographic element, and position 6 - a protective mask.
• the proposed holographic element is made as follows.
• the holographic element may include an image and / or inscription made by demetallization, which correspond, for example, to the aesthetic requirements of the customer.
• An image or an inscription can be invisible when observed, with the naked eye — and so — that can be observed with a microscope, or be visible and can be observed with the naked eye, depending on size images or labels.
• the encoded image can be used for automatic hologram authentication.
• the designer creates the desired hologram image.
• a metal matrix is made with the desired hologram created.
• Reproduction of a hologram on a polymer film is carried out on traditional equipment - a mechanical press by pressure with a nickel matrix with a holographic image on a polymer film, which is the base of 1 holographic element and a hologram.
• the hologram was coated on the metal side with a layer 5 of protective liquid — nitro-paint or nitro-lacquer, which, due to the capillary effect, impregnated section 3 with the hologram micro-relief.
• the excess protective fluid was removed from the surface.
• the protective fluid layer 5 was held in the areas of the hologram microrelief 3.
• the film was held for a certain time in calm air to cure the protective fluid layer 5 on the microrelief of the metallized area 3.
• Image formation of the additional metallized area 4 was carried out using the standard technology of offset printing using the metal layer films - on the basis of 1.
• a protective mask 6 was obtained, which covered the metallized portion 3 with the hologram micro-relief, and the additional metallized portion 4 in the form of fine elements. Then the film was immersed in an etching solution, where a thin layer of metal was etched from the surface of the base 1, which was not covered by a protective liquid. The film was dried and a heterojunction was obtained, which contained an optically transparent demetallized region 2 with a removed metal layer, an optically opaque metallized region 3 with a hologram formed of a holographic microrelief of alternating protrusions and a ditch on a metal base — and an additional — metallized region 4. The boundaries were demetallized section 2 and metallized section 3 with a hologram coincided with the boundaries of the holographic relief.
• the obtained holographic element has enhanced protective properties, because it contains new features in the additional metallized area 4, which can be used for accounting and control and cannot be discreetly changed, since such an attempt will damage the holographic image on the metallized area 3.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Credit Cards Or The Like (AREA)
• Holo Graphy (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=50685671

Family Applications (1)

Country Status (1)

Citations (3)

• 2012
  • 2012-11-06 WO PCT/UA2012/000101 patent/WO2014027983A1/fr not_active Ceased

Patent Citations (3)

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