EP1389537A1 - Support imprime anti-falsification avec caracteristique de bascule ou de bascule de couleurs - Google Patents

Support imprime anti-falsification avec caracteristique de bascule ou de bascule de couleurs Download PDF

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Publication number
EP1389537A1
EP1389537A1 EP02714537A EP02714537A EP1389537A1 EP 1389537 A1 EP1389537 A1 EP 1389537A1 EP 02714537 A EP02714537 A EP 02714537A EP 02714537 A EP02714537 A EP 02714537A EP 1389537 A1 EP1389537 A1 EP 1389537A1
Authority
EP
European Patent Office
Prior art keywords
printed
image
region
pattern
latent image
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.)
Granted
Application number
EP02714537A
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German (de)
English (en)
Other versions
EP1389537A4 (fr
EP1389537B1 (fr
Inventor
Masanori;c/o Dokuritsugyouseihoujin NAKAI
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.)
National Printing Bureau
Original Assignee
Agency of Industrial Science and Technology
Printing Bureau Ministry of Finance
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 Agency of Industrial Science and Technology, Printing Bureau Ministry of Finance filed Critical Agency of Industrial Science and Technology
Publication of EP1389537A1 publication Critical patent/EP1389537A1/fr
Publication of EP1389537A4 publication Critical patent/EP1389537A4/fr
Application granted granted Critical
Publication of EP1389537B1 publication Critical patent/EP1389537B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes

Definitions

  • the present invention relates to anti-forgery printed matter and, more particularly, to anti-forgery printed matter having a flip-flop effect or a color flip-flop effect.
  • a pattern is formed on the printing surface of such printed matter by very fine image lines.
  • techniques used as measures against forgery and alteration of such printed matter are a technique for printing, on printed matter, a collective pattern of characters called microcharacters each having a character size of 1 mm or less and a technique for forming an unnoticeable latent image which becomes visible when predetermined processing is executed for printed matter. More specifically, latent image intaglio printing is used, or printing is executed using anti-copy image lines or functional ink whose color cannot be accurately reproduced by a copying machine.
  • the anti-forgery and anti-alteration measure using microcharacters a fine and complex pattern is formed, thereby making it difficult to create counterfeit matter having the same pattern as an authentic one.
  • the effect of the anti-forgery measure is increased by, e.g., using colors that are hard to reproduce by extraction by a photomechanical process apparatus or a copying machine.
  • a ground tint pattern that can effectively prevent any forgery or alteration can be formed.
  • a large quantity of character information that is essential in printed products can be added.
  • microcharacters are widely used all over the world in designing printed matter such as securities. Especially, in printed matter such as banknotes, stock certificates, and bonds with monetary values, microcharacters are used as a pattern.
  • a microcharacter pattern is currently an important element that adds a quality appearance.
  • microcharacters are handled as a pattern that is indispensable for a design.
  • Anti-forgery elements and printing techniques capable of obtaining new design and high anti-forgery effect are lately demanded for printed matter such as important documents that need high level of security.
  • inks or coatings containing special luminescent powder such as interference mica, oxidized flake mica, pigment-coated aluminum flakes, or optical change flakes are available. They allow production of a large quantity of printed matter which are excellent in color flip-flop effect, i.e., which can change their colors in accordance with the observation angle or printed matter having security elements such as hologram whose images change in accordance with the observation angle.
  • the color flip-flop effect means the angle dependence of colors, i.e., a characteristic representing that the light/shade and colors of a coating surface changes depending on the viewing angle. Especially, a characteristic representing a change in light/shade of colors is called a flip-flop effect, and a characteristic representing a change in hue is called a color flip-flop effect.
  • a polarizing ink layer containing a pearl pigment is solidly printed on the entire surface of a base sheet.
  • An abstract pattern or character pattern formed from an aggregate of straight lines or curved lines is printed as a color ink layer on the polarizing ink layer. Incident light from the upper surface side is periodically reflected to a predetermined direction by the pearl pigment in the polarizing ink layer to generate gloss.
  • the abstract pattern or character pattern by the color ink layer can be seen as a three-dimensional pattern (e.g., Japanese Utility Model Laid-Open No. 5-76765).
  • Anti-copy printed matter formed by a technique using a metallic luster ink is proposed (Japanese Patent Laid-Open No. 57-20395).
  • silver ink is used to print, on a base, a latent image formed from fine components as halftone dots having a resolution of 85 lines/inch and a percent dot area of 30%.
  • Dots having a higher density than the latent image, i.e., a resolution of 150 lines/inch and a percent dot area of 30% are printed on the margin portion except the latent image.
  • a pattern of lathe works or ground tints is printed on the printed surface.
  • an anti-forgery and anti-alteration information carrier is proposed (e.g., Japanese Patent Laid-Open No. 8-58224).
  • an authenticity determination identifying portion which contains transparent optical change flakes and indicates a plurality of colors in accordance with the angle of incidence is formed at an arbitrary portion on a base. At least part of the identifying portion of the base is transparent. A color indicated by reflected light from the authenticity determination identifying portion and transmitted light having the complementary color of the reflected light changes depending on the observation angle.
  • a color flip-flop metallic coating is also proposed (e.g., Japanese Patent Laid-Open No. 7-292994).
  • This color flip-flop metallic coating can form a coating that is excellent in color flip-flop effect by combining a plurality of kinds of scaly coloring pigments having different color tones or combining a scaly coloring metal pigment and an organic pigment having a color different from the metal pigment.
  • one of two images is formed using a small number of lines at a high percent dot area.
  • the other image is formed using a larger number of lines at almost the same percent dot area as the image with the small number of lines.
  • Another anti-copy technique is also proposed (e.g., Japanese Patent Laid-Open No. 6-71156), in which the latent image of a first latent image portion formed on a base is printed using halftone dots at a resolution of 150 lines/inch and a percent dot area of 10%.
  • the background around the latent image is printed using halftone dots at a resolution of 60 lines/inch and a percent dot area of 10%.
  • the latent image of a second latent image portion adjacent to the first latent image portion is printed using halftone dots at a resolution of 60 lines/inch and a percent dot area of 10%.
  • the background around it is printed using halftone dots at a resolution of 150 lines/inch and a percent dot area of 10%.
  • the anti-forgery method or authenticity determining printed matter using an ink containing a special luminescent powder increases the cost of printed matter because the luminescent powder itself is expensive.
  • such printed matter uses only the angle dependence of colors by the photoluminescence.
  • authenticity determining printed matter using an ink which contains luminescent powder and has only the angle dependence of colors can easily be forged. It is difficult for an ordinary citizen to easily and instantaneously determine the authenticity.
  • Japanese Patent Application No. 10-365279 filed by the present applicant in which an image is formed by using arbitrary luminescent inks corresponding to printing plates (C), (M), and (Y) having arbitrary tone levels and an arbitrary light absorption ink corresponding to a printing plate (K) having an arbitrary tone level.
  • C printing plates
  • M printing plates
  • Y arbitrary light absorption ink
  • K printing plate
  • an information carrier Japanese Patent Application No. 11-307052 filed by the present applicant
  • a luminescent shielding layer having a high base hiding ratio is formed in one of a first visual information image region (18) and a background image region (19).
  • a luminescent shielding layer having a low base hiding ratio is formed in the other region.
  • a luminescent shielding layer having a high base hiding ratio is formed in both of a second visual information image region (20) and a background image region (21).
  • a shielding layer having a high visible light absorptance and a very low base hiding ratio is formed at least at part of the luminescent shielding layer having the high base hiding ratio. The visible information changes when the observation angle is changed.
  • the basic image line constituent element is a tint or solid fill.
  • Security printed matter generally requires a design that sends a quality appearance into the subconscious mind, and the tint or solid fill is insufficient for this.
  • security printed matter must have the anti-forgery effect in addition to the semantic information of printed matter such as securities including banknotes, stock certificates, and bonds or various kinds of certificates.
  • the anti-forgery element preferably has a plurality of pieces of semantic information.
  • the present invention has been made in consideration of the above situation, and has as its object to provide anti-forgery printed matter which allows authenticity determination of printed matter without requiring any special apparatus and has a flip-flop effect or color flip-flop effect capable of obtaining a high anti-forgery effect.
  • anti-forgery printed matter with a flip-flop effect which has a printed image formed on a printing base, wherein the printed image has a latent image region and a background image region, the latent image region is formed by a solid printed layer containing an ink or coating containing at least one luminescent material, the background image region is formed by alternately repeating the solid printed layer containing the ink or coating containing at least one luminescent material and a halftone printed layer containing an ink or coating containing at least one luminescent material at a predetermined interval, and the latent image is more easily visually recognized when an observation angle is in a diffused or scattered light region with respect to an illumination light source than when the observation angle is in a regularly reflected light region with respect to the illumination light source.
  • the background image region may include a single line pattern including at least one of a horizontal stripe pattern, a vertical stripe pattern, a concentric circle pattern, and a concentric polygonal pattern, a check pattern, or a grid pattern.
  • anti-forgery printed matter with a color flip-flop effect which has first printed image and second printed image formed on a printing base, wherein the first printed image has a first latent image region and a first background image region, the first latent image region is formed by a solid printed layer containing an ink or coating containing at least one luminescent material, the first background image region is formed by alternately repeating the solid printed layer containing the ink or coating containing at least one luminescent material and a halftone printed layer containing an ink or coating containing at least one luminescent material at a predetermined interval, the second printed image has a second latent image region and a second background image region, the second latent image region is an unprinted region or a region where outline printing on a printed region is executed, the second background image region is formed by alternately repeating a microcharacter printed layer containing an ink and an unprinted layer at a predetermined interval, the microcharacter printed layer in the second background image region in the second printed image is super
  • Each of the first background image region and the second background image region may include a single line pattern including at least one of a horizontal stripe pattern, a vertical stripe pattern, a concentric circle pattern, and a concentric polygonal pattern, a check pattern, or a grid pattern.
  • the luminescent material may include a material selected from the group consisting of interference mica, oxidized flake mica, pigment-coated aluminum flakes, optical change flakes, and a combination thereof.
  • Anti-copy printed matter 1 according to this embodiment shown in Fig. 1A is formed by printing a first printed image 3 shown in Fig. 1B and then superposing a second printed image 5 shown in Fig. 2B on the first printed image 3.
  • the first printed image 3 is printed on a printing base using an ink containing a luminescent material.
  • a first latent image 3A is formed, as shown in Fig. 1B.
  • the second printed image 5 is printed on the first printed image 3 using a color ink.
  • a second latent image 5A is formed, as shown in Fig. 1C.
  • the first latent image 3A in the first printed image 3 changes from a visible image to an invisible image.
  • the second latent image 5A in the second printed image 5 changes from an invisible image to a visible image.
  • the first latent image 3A in the first printed image 3 changes from an invisible image to a visible image.
  • the second latent image 5A in the second printed image 5 changes from a visible image to an invisible image.
  • the first printed image 3 and second printed image 5 will be described next in detail.
  • the first printed image 3 is formed on a printing base 2 by using an ink (e.g., gold ink) containing a luminescent material.
  • an ink e.g., gold ink
  • the second printed image 5 is formed on the first printed image 3 by using a color ink.
  • the first printed image 3 has a first background image 4 and the first latent image 3A (character "I" shown in Fig. 2B).
  • the first background image 4 has a horizontal stripe pattern obtained by alternately laying out first single lines 4A formed by gold ink solid printing as single lines each having a predetermined width and gold halftone printing regions 4B formed by gold ink printing (gold halftone printing) at a high dot ratio (e.g., 70% to 80%) as single lines each having a predetermined width.
  • the first latent image 3A is formed by gold ink solid printing.
  • the gold halftone printing region 4B corresponds a halftone printing region where the percent dot area falls within the range of 0% (exclusive) to 100% (exclusive).
  • the second printed image 5 has a second background image 6 and the second latent image 5A (character "O" shown in Fig. 3B).
  • the second background image 6 is formed by printing a horizontal stripe pattern formed from microcharacters of a color ink or second single lines 6A each having a low dot ratio (e.g., 20% to 30%) and a predetermined width.
  • the second latent image 5A is formed by executing negative printing on the second background image 6 formed from a horizontal stripe pattern.
  • the second printed image 5 is to be formed using a color ink on the first printed image 3 formed using gold ink
  • printing is executed such that the second single lines (regions where microcharacters are printed by the color ink) 6A in the second printed image 5 are superposed on the first single line (regions where the gold ink is printed by solid printing) 4A in the first printed image 3, as shown in Figs. 1A and 4B.
  • the first printed image 3 has a density difference between the first latent image 3A in which the character "I" is formed by gold ink solid printing and the first background image 4 in which single lines are formed by gold ink printing at a high dot ratio. Hence, the first latent image 3A can be visually recognized.
  • the density difference between the first latent image 3A and the first background image 4 is small. Hence, the first latent image 3A cannot be visually recognized.
  • the second printed image 5 has a density difference between the second background image 6 in which the horizontal stripe pattern including the second single lines 6A at a low dot ratio is printed using a color ink and the second latent image 5A in which the character "O" is formed by negative printing on the second background image 6.
  • the second latent image 5A can be visually recognized.
  • the density difference between the second background image 6 and the second latent image 5A is small. Hence, the second latent image 5A cannot be visually recognized.
  • the first latent image 3A when the observation angle is in the diffused light (scattered light) region, the first latent image 3A is visible while the second latent image 5A is invisible. Conversely, when the observation angle is in the regularly reflected light region, the second latent image 5A is visible while the first latent image 3A is invisible. That is, an ordinary person can visually easily and clearly determine the authenticity of printed matter by a simple operation without any special apparatus, i.e., by changing the observation angle between the diffused light (scattered light) region and the regularly reflected light region.
  • latent images can be formed by different printing methods using a plurality of character patterns, like the first latent image 3A and second latent image 5A.
  • the anti-forgery element can have a plurality of pieces of semantic information, and the anti-forgery effect can be further increased.
  • the authenticity can be determined by using a simple means such as a loupe. Hence, the anti-forgery effect can be increased at a low cost.
  • the above-descried embodiment is merely an example and does not limit the present invention.
  • the first printed image 3 is formed on the printing base 2 by using an ink such as gold link containing a luminescent material.
  • the second printed image 5 is formed on the first printed image 3 by using a color ink.
  • the present invention is not limited to this. Even anti-forgery printed matter with a flip-flop effect, which has only the first printed image 3 formed on the printing base 2 by using an ink containing a luminescent material, has a sufficient anti-forgery effect and can be put into practical use. More specifically, the anti-forgery effect can be obtained only by forming the first background image 4 on the printing base 2, as described with reference to Fig. 2A, and then forming the first latent image 3A to form the first printed image 3, as shown in Figs. 2B and 4A.
  • a horizontal stripe pattern is formed in each of the first and second background images 4 and 6.
  • a single line pattern such as a vertical stripe pattern as shown in Fig. 5A, a concentric circle pattern as shown in Fig. 5B, or a concentric polygonal pattern as shown in Fig. 5C, a check pattern or grid pattern as shown in Fig. 5D, or any other pattern may be used.
  • a single line pattern such as a horizontal stripe pattern, a vertical stripe pattern, a concentric circle pattern, or a concentric polygonal pattern, a check pattern or grid pattern, or any other pattern may be formed in the first background image 4.
  • a single line formed from a collective pattern of microcharacters is used as the second single line 6A of the second background image 6.
  • the present invention is not limited to this. Instead, a single line having a low dot ratio may be used.
  • gold ink is used as the luminescent ink.
  • the present invention is not limited to this. Instead, an ink containing luminescent powder such as interference mica, oxidized flake mica, pigment-coated aluminum flakes, or optical change flakes may be used.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Pens And Brushes (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
EP02714537A 2001-04-26 2002-04-08 Support imprime anti-falsification avec caracteristique de bascule ou de bascule de couleurs Expired - Lifetime EP1389537B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001128514 2001-04-26
JP2001128514 2001-04-26
PCT/JP2002/003495 WO2002090121A1 (fr) 2001-04-26 2002-04-08 Support imprime anti-falsification avec caracteristique de bascule ou de bascule de couleurs

Publications (3)

Publication Number Publication Date
EP1389537A1 true EP1389537A1 (fr) 2004-02-18
EP1389537A4 EP1389537A4 (fr) 2006-11-02
EP1389537B1 EP1389537B1 (fr) 2007-08-29

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ID=18977191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02714537A Expired - Lifetime EP1389537B1 (fr) 2001-04-26 2002-04-08 Support imprime anti-falsification avec caracteristique de bascule ou de bascule de couleurs

Country Status (6)

Country Link
EP (1) EP1389537B1 (fr)
JP (1) JP4192233B2 (fr)
AT (1) ATE371539T1 (fr)
DE (1) DE60222113T2 (fr)
DK (1) DK1389537T3 (fr)
WO (1) WO2002090121A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1652687A1 (fr) * 2004-10-29 2006-05-03 Hueck Folien Ges.m.b.H Elément de sécurité
EP1775675A1 (fr) * 2005-10-12 2007-04-18 Trüb AG Procédé pour la réalisation d' un support de données
US20070200002A1 (en) * 2006-02-27 2007-08-30 Jds Uniphase Corporation Security Device Formed By Printing With Special Effect Inks
CN100360323C (zh) * 2005-12-23 2008-01-09 中国印钞造币总公司 凹印对印透视叠色潜影的印制方法
WO2008145369A2 (fr) * 2007-05-29 2008-12-04 Giesecke & Devrient Gmbh Support de données à caractéristique de sécurité imprimée
WO2015051237A1 (fr) * 2013-10-04 2015-04-09 3M Innovative Properties Company Articles à microsphères décoratifs
FR3044964A1 (fr) * 2015-12-14 2017-06-16 Franck Andre-Marie Guigan Marquage de securite a impressions multiples superposees
FR3046111A1 (fr) * 2015-12-29 2017-06-30 Arjowiggins Security Article securise comportant une trame de revelation et une image combinee
CN107073989A (zh) * 2014-11-12 2017-08-18 大日本印刷株式会社 信息记录体、读取装置以及程序
GB2547687A (en) * 2016-02-26 2017-08-30 De La Rue Int Ltd Methods of manufacturing security devices

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5186655B2 (ja) * 2008-05-08 2013-04-17 独立行政法人 国立印刷局 真偽判別可能な情報担持体
JP5190624B2 (ja) * 2009-03-25 2013-04-24 独立行政法人 国立印刷局 潜像画像を有する印刷物
JP7351108B2 (ja) * 2019-06-21 2023-09-27 大日本印刷株式会社 情報記録体、媒体及び冊子体

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JP3449690B2 (ja) * 1998-11-25 2003-09-22 独立行政法人 国立印刷局 偽造防止用表示体とその製法
JP3398758B2 (ja) * 1999-10-28 2003-04-21 財務省印刷局長 偽造防止用情報担持体

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO02090121A1 *

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1652687A1 (fr) * 2004-10-29 2006-05-03 Hueck Folien Ges.m.b.H Elément de sécurité
US8419069B2 (en) 2005-10-12 2013-04-16 Trüb AG Method for producing a data carrier
EP1775675A1 (fr) * 2005-10-12 2007-04-18 Trüb AG Procédé pour la réalisation d' un support de données
WO2007041882A1 (fr) * 2005-10-12 2007-04-19 Trüb AG Procede pour produire un support de donnees
CN100360323C (zh) * 2005-12-23 2008-01-09 中国印钞造币总公司 凹印对印透视叠色潜影的印制方法
US20070200002A1 (en) * 2006-02-27 2007-08-30 Jds Uniphase Corporation Security Device Formed By Printing With Special Effect Inks
US10343436B2 (en) * 2006-02-27 2019-07-09 Viavi Solutions Inc. Security device formed by printing with special effect inks
US11504990B2 (en) 2006-02-27 2022-11-22 Viavi Solutions Inc. Security device formed by printing with special effect inks
WO2008145369A3 (fr) * 2007-05-29 2009-02-12 Giesecke & Devrient Gmbh Support de données à caractéristique de sécurité imprimée
CN101765517B (zh) * 2007-05-29 2011-08-17 德国捷德有限公司 具有印刷的防伪特征的数据载体
WO2008145369A2 (fr) * 2007-05-29 2008-12-04 Giesecke & Devrient Gmbh Support de données à caractéristique de sécurité imprimée
WO2015051237A1 (fr) * 2013-10-04 2015-04-09 3M Innovative Properties Company Articles à microsphères décoratifs
CN105593709A (zh) * 2013-10-04 2016-05-18 3M创新有限公司 装饰性微球制品
US9880332B2 (en) 2013-10-04 2018-01-30 3M Innovative Properties Company Decorative microsphere articles with information layer
US10242309B2 (en) 2014-11-12 2019-03-26 Dai Nippon Printing Co., Ltd. Information recording object and reading device
CN107073989A (zh) * 2014-11-12 2017-08-18 大日本印刷株式会社 信息记录体、读取装置以及程序
EP3219505A4 (fr) * 2014-11-12 2018-06-20 Dai Nippon Printing Co., Ltd. Objet d'enregistrement d'informations, dispositif de lecture, et programme
CN107073989B (zh) * 2014-11-12 2019-10-11 大日本印刷株式会社 信息记录体、读取装置
FR3044964A1 (fr) * 2015-12-14 2017-06-16 Franck Andre-Marie Guigan Marquage de securite a impressions multiples superposees
WO2017114803A1 (fr) * 2015-12-29 2017-07-06 Arjowiggins Security Article securise comportant une trame de revelation et une image combinee
FR3046111A1 (fr) * 2015-12-29 2017-06-30 Arjowiggins Security Article securise comportant une trame de revelation et une image combinee
US10710394B2 (en) 2015-12-29 2020-07-14 Oberthur Fiduciaire Sas Secure item comprising a revealing screen and a combined image
RU2731962C2 (ru) * 2015-12-29 2020-09-09 Обертюр Фидюсьер Сас Защищенное изделие, содержащее выявляющий растр и комбинированное изображение
GB2547687A (en) * 2016-02-26 2017-08-30 De La Rue Int Ltd Methods of manufacturing security devices
US10759213B2 (en) 2016-02-26 2020-09-01 De La Rue International Limited Methods of manufacturing security devices

Also Published As

Publication number Publication date
ATE371539T1 (de) 2007-09-15
DE60222113D1 (de) 2007-10-11
JP4192233B2 (ja) 2008-12-10
WO2002090121A1 (fr) 2002-11-14
JPWO2002090121A1 (ja) 2005-04-07
EP1389537A4 (fr) 2006-11-02
DE60222113T2 (de) 2008-06-05
EP1389537B1 (fr) 2007-08-29
DK1389537T3 (da) 2007-12-27

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