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WO2009014506A1 - Élément holographique et procédé de production correspondant - Google Patents

Élément holographique et procédé de production correspondant Download PDF

Info

Publication number
WO2009014506A1
WO2009014506A1 PCT/UA2007/000047 UA2007000047W WO2009014506A1 WO 2009014506 A1 WO2009014506 A1 WO 2009014506A1 UA 2007000047 W UA2007000047 W UA 2007000047W WO 2009014506 A1 WO2009014506 A1 WO 2009014506A1
Authority
WO
WIPO (PCT)
Prior art keywords
hologram
base
holographic
demetallized
metallized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/UA2007/000047
Other languages
English (en)
Russian (ru)
Inventor
Ignat Pohan
Andrii Ivanovskyi
Andrii Tymoshenko
Yuriy Sidorenko
Georgiy Beylin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
'specialized Enterprise 'holography' LLC
Original Assignee
'specialized Enterprise 'holography' LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 'specialized Enterprise 'holography' LLC filed Critical 'specialized Enterprise 'holography' LLC
Publication of WO2009014506A1 publication Critical patent/WO2009014506A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • G03H1/0236—Form or shape of the hologram when not registered to the substrate, e.g. trimming the hologram to alphanumerical shape
    • 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
    • G03H1/02—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
    • G03H1/04—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
    • 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

Definitions

  • the present invention relates to a topographic element and a method for its manufacture.
  • the proposed holographic element can be used for marking, in order to protect against counterfeit, a variety of documents, in particular, such as banknotes, checks, excise stamps, etc.
  • a holographic element containing a base in the form of a metallized polymer film, a portion with a hologram formed in the form of a holographic microrelief of protrusions and grooves, and a portion with a removed metal layer / information from the website htt.V / www. vera.com.pl/go.live.php/html default / PrintHTML / 61.html, received on July 6, 2007 /.
  • a section with a removed metal layer is created by treating the base with a laser beam.
  • the characteristics of the laser beam are chosen such that during the laser beam treatment the polymer lining of the metallized film remains intact, and only a fragment of the metal layer is removed from the surface of the metallized film.
  • an aluminum layer is used as the metal layer in the described construction.
  • the optimal geometric parameters of the hologram microrelief are: height - 0.1-0.3 microns, and the period of alternation of protrusions and grooves - 0.3-4.0 microns. These parameters are optimal for creating a hologram designed for visual perception with the naked eye when illuminated with visible light. With such geometric parameters of a site with a topographic relief, the hologram, when considered, is brightly iridescent with rainbow colors. An increase or decrease in the geometric parameters of the holographic relief leads to a loss of topographic effects and brightness. In the described device, in the process of demetallization, a part of the holographic image is lost, since the process is carried out with certain capabilities of the equipment, work tolerance.
  • the described holographic element has limitations on the reproduction of the design of the hologram, since the laser allows you to demetallize the lines with accuracy the coincidence of the demetallization and hologram sections is not less than 0.3 mm, which is much more than the geometric parameters of the hologram microrelief: height - 0.1-0.3 microns and the period of alternation of protrusions or grooves - 0.3-4.0 microns .
  • a method of manufacturing a holographic element including 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 of alternating protrusions and grooves, and a demetallized section - section with a removed metal layer / information from the site http://www.vera.com.pl/go.live.php/html default / PrintHTML / 61.httl, received on July 6, 2007 /.
  • a section with a removed metal layer is created by dimensionally processing the substrate with a laser beam.
  • the characteristics of the laser beam are chosen such that during processing the polymer lining of the metallized film remains intact, and only a fragment of the metal layer on the surface of the metallized film is removed.
  • a metal layer in the described metallized film aluminum foil is used as a metal layer in the described metallized film.
  • the described method does not allow to demetallize a hologram with an accuracy of coincidence of demetallization and hologram sections higher than 0.3 millimeters, which is much more than the geometric parameters of the hologram microrelief: height - 0.1-0 , 3 microns and the alternation period of the protrusions or grooves is 0.3-4.0 microns.
  • the basis of the proposed inventions is the task of creating such a holographic element and such a method of its manufacture that would make it possible to obtain a holographic element with enhanced protective properties, which would significantly complicate their fake.
  • the problem is solved by the proposed device due to the use in its design of an optically opaque portion with a hologram and an optically transparent demetallized portion, the boundaries of which coincide with the boundaries of the hologram.
  • the problem is solved by the proposed method through the use of the capillary effect of the topographic relief in the process of selective demetallization (metal removal) from the surface of a metallized film on which a holographic relief is applied.
  • the proposed, like the well-known holographic element, contains a base in the form of a polymer metallized film, on the base there is a demetallized area with a removed metal layer and a metallized area with a hologram formed in the form of a topographic microrelief of protrusions and grooves on the metal surface of the base, and, in accordance with by the invention, the demetallized portion is optically transparent, the hologram portion is optically opaque, and the boundaries of the demetallized portion and the c the hologram coincides with the boundaries of the topographic relief.
  • the proposed, as well as the known method of manufacturing a holographic element includes the operation of forming on the surface of the base, made of metallized polymer film, a section with a hologram in the form of a holographic microrelief of alternating protrusions and grooves, and a demetallized section - a section with a removed metal layer, and in accordance with the invention, previously on the metal surface of the base, made of metallized polymer film, form at least two sections with a topograph With a microrelief, the height of which is 0.1-0.3 microns, and the period of alternation of protrusions and grooves is 0.3-4.0 microns, one of the sections is saturated with a protective liquid, for example, paint, and the section saturated with a protective liquid is held until the protective liquid has hardened , the surface of the metallized film from the side of the metal surface is subjected to chemical etching to remove from the base, free from the layer of hardened protective liquid, the metal layer of the metal
  • holographic elements are replicated on a polymer film with a sprayed metal coating by embossing with a matrix with topographic relief.
  • the authors experimentally revealed that the hologram - a microrelief of alternating protrusions and grooves - after applying liquid to it, due to the capillary effect, “sucks” the liquid onto the entire surface of the hologram.
  • the protective fluid does not go beyond the hologram, that is, the protective fluid, such as paint, covers only the surface strictly limited by the surface with the hologram.
  • the proposed method allows to obtain a demetallized area, the boundaries of which exactly (without tolerances) coincide with the boundaries of the holographic relief.
  • the prototype method allows you to get a demetallized area, which can coincide with the holographic relief only with an accuracy (tolerance) of up to 0.3 millimeters, which necessarily leads to the loss of hologram fragments.
  • Using the proposed method allows you to create a new visual sign of the reproduction, for example, of a control holographic image against the background of a demetallized structure, which will be inherent only to a specific document or product marked with such a holographic element.
  • a holographic element it is necessary to use not only holographic technologies, but also a new demetallization technology. All this complicates the process of falsification or imitation of the proposed protective element, and therefore increases its protective properties.
  • the method is carried out as follows.
  • the customer proposes the idea of an image and / or words to be reproduced on a holographic element.
  • the holographic element may contain an image and / or inscription made using the demetallization process, which corresponds, for example, to the aesthetic needs of the customer. So, at the customer’s choice, the image and / or inscription can be invisible when observed with the naked eye and can be observed with a microscope or be visible and can be observed with the naked eye depending on the size of the proposed image and / or inscription.
  • the holographic element may contain an encoded image that can be used to automatically verify the authenticity of the holographic element. The essence of the invention is illustrated using schematic drawings.
  • Figure 1, 2, 3 shows general views of samples of the proposed holographic element.
  • Figure 4 for comparison shows holographic elements of traditional and proposed designs.
  • the proposed holographic element contains a base 1 made in the form of a metallized film.
  • a hologram 2 in the form of a microrelief of alternating protrusions and grooves that recreate the image and text is reproduced on a thin metal layer of the base 1.
  • the area with the hologram 2 is saturated with a pre-protective liquid — paint — after the paint layer 4 has dried, the latter protects the metal layer of the base 1 from the action of the etching solution, and the metal is removed in places unprotected by the hardened paint layer.
  • Figure 4 shows for comparison the traditional non-metalized hologram 6, the demetallized hologram, where the metal is removed from areas without relief 7 and the demetallized hologram, where the metal is removed from sites without relief 8.
  • the proposed holographic element was made as follows. The designer, by order of the owner or customer of the product, created an image and / or text, including a hologram 2 in the form of a microrelief from alternating protrusions and grooves, and a demetallized section 5, which corresponded to a single integral design concept. A metal matrix was made with the created hologram 2 and the future demetallized section 5. The metal matrix was used to reproduce the hologram 2 and the future demetallized section 5.
  • the mechanical reproduction of the hologram 2 and the future demetallized section 5 on the basis of 1 was performed on traditional equipment - a mechanical press for embossing holograms by embossed with a nickel matrix with a holographic relief on the basis of 1 - metallized aluminum foil 50 mm thick lavsan film ikrometrov.
  • the base 1 after its treatment with a nickel matrix with a holographic relief was covered with a layer of protective liquid 4.
  • An acrylic aqueous dispersion was used as a protective liquid.
  • the protective liquid was impregnated through the use of the capillary effect sections of the base 1 with a microrelief of the hologram 2.
  • the protective fluid layer 4 was retained only in areas with a microrelief of hologram 2.
  • the protective layer 4 was dried by heating the film to a temperature of +60 ... + 70 0 C.
  • the film was immersed in an etching solution - a solution based on caustic soda, where etching took place a thin layer of metal from the surface of the base 1, which was not protected by the hardened layer 4 of the protective fluid.
  • the resulting film was washed with running water, immersed in a solvent of the protective layer and washed off the film.
  • a holographic element containing a base 1 with an optically opaque section 2 made in the form of a hologram on the side of the metal surface of the base 1 and an optically transparent demetallized section 5 with a removed metal layer, the boundaries of which coincided with the boundaries of the holographic relief with an accuracy commensurate with with the geometric parameters of the hologram microrelief 2.
  • an etching solution was added to the protective liquid, which etched the metal layer oh base 1 in areas with topographic topography 2 (Fig. 3).
  • the manufactured holographic element with enhanced protective properties which significantly complicate its fake or imitation, was used for marking, in order to protect documents from falsification, in particular, such as banknotes, checks or excise stamps.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
  • Credit Cards Or The Like (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

La présente invention concerne un élément holographique pouvant être utilisé pour le marquage anti-contrefaçon. Cet élément comprend une base se présentant sous la forme d'un film métallisé polymère. Cette base comprend une zone démétallisée de laquelle une couche de métal a été retirée et une zone métallisée comportant un hologramme se présentant sous la forme d'un microrelief holographique composé de protubérances et de gorges. La zone démétallisée est optiquement transparente, tandis que la zone comportant l'hologramme est optiquement opaque. Le procédé de cette invention consiste à former, sur la surface métallique de la base, au moins deux zones comportant le microrelief holographique, à saturer l'une des deux zones avec un fluide protecteur, par exemple un colorant, à laisser durcir le fluide protecteur, puis à attaquer chimiquement la surface du film métallisé jusqu'à ce que la couche de métal dudit film métallisé soit éliminée de la base dépourvue de couche de fluide protecteur durci. Cette invention permet d'améliorer les propriétés de protection.
PCT/UA2007/000047 2007-07-26 2007-08-10 Élément holographique et procédé de production correspondant Ceased WO2009014506A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAA200708588 2007-07-26
UAA200708588A UA83449C2 (uk) 2007-07-26 2007-07-26 Голографічний елемент та спосіб його виготовлення

Publications (1)

Publication Number Publication Date
WO2009014506A1 true WO2009014506A1 (fr) 2009-01-29

Family

ID=40281601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/UA2007/000047 Ceased WO2009014506A1 (fr) 2007-07-26 2007-08-10 Élément holographique et procédé de production correspondant

Country Status (3)

Country Link
RU (1) RU2354558C1 (fr)
UA (1) UA83449C2 (fr)
WO (1) WO2009014506A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA019121B1 (ru) * 2010-07-13 2014-01-30 Закрытое Акционерное Общество "Голографическая Индустрия" Защитная метка и способ изготовления таких меток
WO2014027983A1 (fr) * 2012-08-14 2014-02-20 Общество С Ограниченной Ответственностью "Специализированное Предприятие "Голография" Élément holographique i-met et procédé de fabrication

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758296A (en) * 1983-06-20 1988-07-19 Mcgrew Stephen P Method of fabricating surface relief holograms
SU1455335A1 (ru) * 1987-07-13 1989-01-30 Институт Физики Ан Усср Способ получени стационарных голограмм
RU2035762C1 (ru) * 1992-07-28 1995-05-20 Предприятие "Спекл" Способ изготовления голографических этикеток
RU2127197C1 (ru) * 1998-01-20 1999-03-10 Смык Александр Федорович Защитная голографическая метка
RU9542U1 (ru) * 1998-08-27 1999-03-16 Золотухин Максим Олегович Информационно-защитная этикетка

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH690067A5 (de) * 1995-08-10 2000-04-14 Ovd Kinegram Ag Verfahren zur Herstellung teilmetallisierter Gitterstrukturen.
RU2195400C1 (ru) * 2001-07-10 2002-12-27 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Способ нанесения голографической метки

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758296A (en) * 1983-06-20 1988-07-19 Mcgrew Stephen P Method of fabricating surface relief holograms
SU1455335A1 (ru) * 1987-07-13 1989-01-30 Институт Физики Ан Усср Способ получени стационарных голограмм
RU2035762C1 (ru) * 1992-07-28 1995-05-20 Предприятие "Спекл" Способ изготовления голографических этикеток
RU2127197C1 (ru) * 1998-01-20 1999-03-10 Смык Александр Федорович Защитная голографическая метка
RU9542U1 (ru) * 1998-08-27 1999-03-16 Золотухин Максим Олегович Информационно-защитная этикетка

Also Published As

Publication number Publication date
RU2354558C1 (ru) 2009-05-10
UA83449C2 (uk) 2008-07-10

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