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EP2032372A2 - Motifs de contrôle pour la protection contre la contrefaçon - Google Patents

Motifs de contrôle pour la protection contre la contrefaçon

Info

Publication number
EP2032372A2
EP2032372A2 EP07733259A EP07733259A EP2032372A2 EP 2032372 A2 EP2032372 A2 EP 2032372A2 EP 07733259 A EP07733259 A EP 07733259A EP 07733259 A EP07733259 A EP 07733259A EP 2032372 A2 EP2032372 A2 EP 2032372A2
Authority
EP
European Patent Office
Prior art keywords
planchette
regions
planchettes
coloured
substrate
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
EP07733259A
Other languages
German (de)
English (en)
Other versions
EP2032372B1 (fr
EP2032372B8 (fr
Inventor
Gary D. Spinks
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.)
DW Spinks Embossing Ltd
Original Assignee
DW Spinks Embossing Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36775709&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2032372(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DW Spinks Embossing Ltd filed Critical DW Spinks Embossing Ltd
Publication of EP2032372A2 publication Critical patent/EP2032372A2/fr
Publication of EP2032372B1 publication Critical patent/EP2032372B1/fr
Application granted granted Critical
Publication of EP2032372B8 publication Critical patent/EP2032372B8/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369—Magnetised or magnetisable materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation

Definitions

  • the present invention relates to planchettes for inclusion in paper products for anti-counterfeiting purposes.
  • counterfeit protection measures include watermarks, holograms, the provision of metallic strips through the paper, the use of fluorescent particles and the use of optically variable inks and coatings.
  • counterfeit protection measures include the expense of some options and the ease with which some options can be overcome, for example by utilizing methods including digital or laser printing, scanning, photography and xerography. Another problem is the difficulty in raising public awareness of some of the measures, especially in relation to counterfeit protection for bank notes.
  • planchettes a number of small discs of coloured paper, known as planchettes, into a paper product and to use the visual effect generated by the planchettes as an anti-counterfeiting measure.
  • planchettes a number of small discs of coloured paper
  • Such arrangements offer many advantages, but suffer from problems including the ease with which some schemes can be replicated by printing, and the need to educate users to check for the presence of the planchettes .
  • the present invention provides a planchette for inclusion in a paper product, the planchette comprising one or more regions, wherein said regions are coloured and the colours are visible only under ultra-violet light, and wherein said planchette has a complex shape.
  • the present invention also provides a method of manufacturing planchettes, the method comprising the steps of forming (for example by printing) one or more regions on a paper or other substrate (such as polymer, cellulose or combination of thin laminar materials) , wherein said regions are coloured and the colours are visible only under ultra-violet light, the method further comprising the step of forming the substrate into a plurality of planchettes, each having a complex shape.
  • the substrate may be formed into a plurality of planchettes by- punching or stamping.
  • the planchettes may be formed by cutting, for example micro-cut planchettes may be generated.
  • the planchettes may be formed by- printing or foiling onto a transparent substrate.
  • the complex shape of the planchettes may take many different forms.
  • the planchette has the shape of a maple leaf.
  • the planchette has the shape of other multi- sided symbols.
  • the term "complex shape" excludes simple shapes such as squares, rectangles and circles and is intended to encompass more complex shapes that might, for example, include one or more projections, one or more indentations, and/or one or more lobes.
  • the present invention also provides a planchette for inclusion in a paper product, the planchette comprising one or more regions, wherein said regions are coloured and the colours are visible only under ultra-violet light, and wherein said planchette has a shape having one or more indentations, protections and/or lobes.
  • the present invention further provides a method of manufacturing planchettes, the method comprising the steps of forming (for example printing) one or more regions on a paper or other substrate (such as polymer, cellulose or combination of thin laminar materials) , wherein said regions are coloured and the colours are visible only under ultra-violet light, the method further comprising the step of forming the substrate into a plurality of planchettes, each having one or more indentations, protections or lobes.
  • the substrate may be formed into a plurality of planchettes by punching or stamping.
  • the planchettes may be formed by cutting, for example micro-cut planchettes may be generated.
  • the planchettes may be formed by printing or foiling onto a transparent substrate.
  • the present invention further provides a planchette for inclusion in a paper product, the planchette comprising one or more regions, wherein said regions are coloured and the colours are visible only under ultra-violet light, and wherein said planchette has the shape of a multi-sided symbol .
  • the present invention also provides a method of manufacturing planchettes, the method comprising the steps of forming (for . example printing) one or more regions on a paper or other substrate (such as polymer, cellulose or combination of thin laminar materials), wherein said regions are coloured and the colours are visible only under ultra-violet light, the method further comprising the step of forming the substrate into a plurality of multi-sided symbols.
  • the substrate may be formed into a plurality of planchettes by punching or stamping.
  • the planchettes may be formed by cutting, for example micro-cut planchettes may be generated.
  • the planchettes may be formed by printing or foiling onto a transparent substrate.
  • planchettes in the form of a multi-side symbol
  • the planchette can be made readily identifiable to a lay person.
  • a problem with some prior art anti- counterfeiting measures is the difficulty in raising public awareness of some of the measures, especially in relation to counterfeit protection for bank notes.
  • the present invention addresses this problem by providing planchettes in the form of symbols that are readily recognisable by members of the public.
  • Planchettes which can be readily seen by a lay person can provide an effective overt security feature. It is also possible to provide planchettes in accordance with the present invention that are difficult to see with the naked eye and therefore provide a covert security feature.
  • planchettes which are not visible under normal lighting conditions may be considered to provide a covert security feature.
  • planchettes in the various aspects of the invention described above may be non-rectilinear, non- circular and/or irregular.
  • the shape of the planchettes is both non- rectilinear and non-circular.
  • the shape of the planchettes is non- rectilinear, non-circular and irregular.
  • the planchette may take one of many forms.
  • the symbol is associated with a country, such as a maple leaf for Canada, or a fern for New Zealand. This is particularly useful for banknotes. Adding planchettes in the shape of a maple leaf to Canadian bank notes, for example, provides an anti-counterfeiting measure that is readily identifiable by the general public.
  • the shape of the planchette could take the form of the outline of a country.
  • Other exemplary shapes include heart shapes, star shapes, coats of arms and abstract shapes.
  • the planchette may comprise a plurality of regions, such as a repeating pattern of regions. Further, said regions may be striped regions, which may form a repeating pattern. In one form of the invention, said striped regions are diagonal striped regions. In forms of the invention in which the shape of the planchette can be considered to be a symbol, the striped regions may be diagonal relative to that symbol.
  • the coloured regions can be made, in effect, to define the shape of the planchette. This is relatively easy to generate if the colours are printed onto a substrate and the planchette formed from the substrate, for example by stamping or cutting. However, this effect is difficult to replicate by printing alone, since the precision required to print coloured regions that define the shape of the symbols required is not trivial. Accordingly, the provision of a plurality of coloured regions on the planchette provides significant protection against counterfeiting by printing.
  • the colour may be selected to match the shape in some way, for example in order to aid recognition by the general public.
  • the colours of the coloured regions can be chosen so that they relate to the symbols.
  • the colours may be the national colours of the relevant countries .
  • the regions or stripes may be placed at about 1mm gradations.
  • the width of the stripes can be more or less than lmm, but it has been found that lmm results in a particularly effective optical effect when the planchettes are incorporated into a paper product.
  • a width of the order of lmm (0.5 to 1.5 mm) may advantageously be chosen since it offers good counterfeit protection.
  • the regions are printed on the front and rear sides of the planchette such that regions on the front and rear sides are in register with one another and have the same colour. This ensures that, if the planchettes are incorporated into a paper product, the printed regions will be visible, given the appropriate light conditions, regardless of the orientation of the planchette in the paper product.
  • the regions are printed on one side of the planchette in such a way that the print is visible on both sides of the planchette. By way of example, this effect may be achieved by forming the planchette from sufficiently thin paper.
  • the said colours may include a plurality of different colours.
  • the regions may abut one another with no overlap of colour at the boundaries of the regions.
  • the pigments used for generating the printed stripes do not generally combine well, hence the desire to prevent the printed stripes from overlapping.
  • planchettes are incorporated into a paper product, the provision of fluorescent printed stripes that abut against one another exactly results in a pattern that is difficult to replicate, thereby offering good counterfeit protection.
  • planchettes in accordance with the invention may include thermochromic, photochromic, magnetic and/or infra-red coatings.
  • said one or more regions are formed on said substrate in a manner other than printing.
  • the regions may be formed from different coloured foils.
  • the planchettes may have a combination or layered security comprising of covert, forensic and overt features.
  • the shape is cut from an opaque material such that when it is viewed in transmitted light, i.e. held up to the light, then the shape is clearly visible in what is called the ⁇ look through' .
  • the intricate detail of the shape is seen in a similar manner to a watermark.
  • the shape may contain intricate cut-outs, voids and graduated opacity to provide a distinct visual characteristic which is different from a watermark.
  • the substrate can then be printed with, for example, fluorescent inks which will only be visible under ultraviolet light or thermochromic inks, which react to temperature so that they either appear or disappear, photochromic inks which appear or disappear when exposed to light or other inks which provide a forensic check whereby a more sophisticated means of detection is required, for instance infra-red and anti-stokes pigments.
  • fluorescent inks which will only be visible under ultraviolet light or thermochromic inks, which react to temperature so that they either appear or disappear
  • photochromic inks which appear or disappear when exposed to light or other inks which provide a forensic check whereby a more sophisticated means of detection is required, for instance infra-red and anti-stokes pigments.
  • the said planchette may have a maximum dimension of 5mm. However other dimensions, such as maximum dimensions of 2mm, 3mm, 4mm or 6mm, are possible.
  • the planchette has a different density to the paper into which it is intended to be incorporated. This allows the planchette to be seen in the so-called "look through” of the paper. The effect is similar to viewing a watermark and is not possible to replicate by printing.
  • the planchette may be a multi-layered material such that the outer faces are made from paper or some other material compatible with papermaking, whilst the inner layer is made of an opaque material so that in transmitted light, the planchette appears as a type of watermark in the base paper or other substrate.
  • the outer layer of the planchette described above is omitted so that just the opaque material is provided. In such an arrangement, the opaque material will need to be compatible with the papermaking process such that the material forms part of the final paper product.
  • planchettes that are incorporated into a paper product in accordance with the principles of present invention are invisible in reflected light, but visible in transmitted and/or ultra-violet light.
  • the planchette may be tissue paper or an alternative thin paper.
  • the paper may be provided without optical brighteners .
  • a planchette in accordance with the present invention may have a layer of varnish applied to the outer surface of the planchette.
  • the layer of varnish may be applied to protect the printed stripes or regions against abrasion and/or to improve the affinity of the planchettes with a paper product into which the planchette is incorporated.
  • the present invention also provides a method of manufacturing a paper product, the method comprising the steps of mixing one or more planchettes as described above with slurry paper pulp and forming the paper pulp and planchette mix into a continuous web of paper.
  • Figure 1 shows a planchette in accordance with an embodiment of the invention
  • FIG. 2 shows a planchette in accordance with an embodiment of the invention
  • Figure 3 shows a planchette in accordance with an embodiment of the invention
  • Figure 4 shows a planchette in accordance with an embodiment of the invention
  • Figure 5 is a cross-section of a planchette in accordance with an embodiment of the invention.
  • Figure 6 shows a planchette in accordance with a further embodiment of the invention.
  • FIG. 1 shows a planchette, indicated generally by the reference numeral 2, in accordance with an embodiment of the present invention.
  • the planchette 2 is in the shape of a maple leaf, the national symbol of Canada.
  • the planchette includes stripes 4, 6 and 8 each extending diagonally across the planchette 2.
  • the planchette 2 is small, typically having a maximum dimension of between 2mm and 5mm.
  • Each of the stripes 4, 6 and 8 has a fluorescent colouring that is only visible under ultra-violet light.
  • the stripes 4 and 8 are coloured red; the stripe 6 is coloured white. Red and white are, of course, the colours of the Canadian flag.
  • the colours are visible when ultraviolet light having a wavelength between 245nm and 365nm is shone at the planchette.
  • the wavelengths at which the colours are visible are dependent on the pigments used to generate the prints .
  • planchettes such as the planchette 2
  • the coloured stripes are printed onto the paper prior to the planchettes being cut.
  • the coloured stripes are printed on both sides of the planchette and are exactly in register such that each colour appears exactly over the corresponding colour on the other side of the planchette. Further, the coloured stripes abut one another such that there is no overlap of colours at the boundary of the stripes .
  • planchettes in accordance with the present invention are intended to be incorporated into a paper product, such as a bank note, as a counterfeit protection device.
  • Paper products in accordance with the present invention are made by mixing slurry paper pulp with the planchettes described above.
  • the planchettes form a hydrogen bond with the cellulose fibres in the paper pulp and when the pulp is formed into a continuous web of paper, the planchettes in the pulp become an integral part of the web or sheet of paper.
  • the coloured stripes or regions of the planchettes can only be seen under ultra-violet light, thereby providing a security feature that cannot be seen in normal light conditions .
  • the planchettes are made from a material with a different density and structure to the base paper with which it is to be used. This allows the planchette to be seen in the so-called "look through” of the paper. The effect is similar to viewing a watermark.
  • the maple leaf shown in Figure 1 is, of course, only one of many possible shapes for a planchette in accordance with the present invention. For example, there are many other national symbols that could be chosen, such as a fern for New Zealand.
  • the present invention is not limited to planchettes having the shape of a national symbol. Indeed, there is an unlimited variety of shapes that could be used.
  • Figures 2 to 4 show three exemplary planchettes in accordance with embodiments of the present invention.
  • Figure 2 shows a heart-shaped planchette 2' , having stripes 4' , 6' and 8' similar to the striped regions 4, 6 and 8 of the planchette 2.
  • Figure 3 shows a star-shaped planchette 2' ' , having stripes 4'', 6'' and 8'' similar to the striped regions 4, 6 and 8 of the planchette 2.
  • Figure 4 shows a planchette 2' ' ' having an abstract shape and having stripes 4' ' ' , ⁇ ' ' ' and 8''' similar to the striped regions 4, 6 and 8 of the planchette 2.
  • planchettes of the embodiments of the invention described above are manufactured from tissue or thin paper without optical brighteners.
  • the optimum paper is a high porosity, high wet strength tissue paper with a nominal basis weight of 25 grams per square metre.
  • the substance of the paper is significant since the ability to print and cut a thin material provides a technical barrier to duplicating the planchettes.
  • Planchettes in accordance with the present invention could be manufactured using paper having the properties listed below. These properties have been developed with the intention of providing a planchette that works well but are only one example. Other papers could be used.
  • the target Bensten porosity (defined by ISO standard 5636/3) is 1500 ml/mm, the minimum Bensten value is 700 ml/mm.
  • the planchettes of the present invention are mixed with the paper, the planchettes are coated with a varnish.
  • the varnish protects the print against abrasion and also improves the affinity of the planchettes in the finished paper.
  • the varnish used is a 4% solution of Solvitose NX in acrylic water based binder that is applied to both sides of the printed material.
  • planchettes 2, 2' , 2'' and 2' ' ' offer a number of advantages when incorporated into a paper product as an anti- counterfeiting feature.
  • the planchettes are small and have intricate shapes.
  • the coloured regions of the planchettes define the planchettes as they are viewed. The precision of this effect is created by punching the planchettes from a larger piece of paper and is extremely difficult to recreate by printing alone.
  • the features are invisible in reflected light but become visible in transmitted light.
  • the print is applied to both sides of the planchette. This is advantageous since, in this finished paper product, the orientation of each individual planchette is unknown. If both sides of the planchette include the print, this will be visible regardless of the orientation of the planchette.
  • a similar effect can be achieved by printing on one side of the planchette in such a way that the print is visible on both sides of the planchettes.
  • This effect can be easily achieved, for example, by using sufficiently thin paper.
  • the printed stripes or regions abut one another and do not overlap. Further, the pigments are selected so that there is no migration of colours into one another and no leeching or migration of the pigments into the surrounding paper.
  • FIG. 5 shows a cross-section of a planchette, indicated generally by the reference numeral 10, in accordance with an alternative form of the invention.
  • the planchette 10 is a multi-layered material comprising an outer later 12 and an inner layer 14.
  • the outer layer 12 is made from paper or some other material compatible with papermaking, whilst the inner layer 14 is made of an opaque material so that in transmitted light, the planchette appears as a type of watermark in the base paper or other substrate.
  • the opaque layer can be generated by selectively de-metallising or metal foiling a specific design. This can be very intricate in itself and then the piece itself is cut or punched to a different shape which encompasses this design.
  • the outer layer 12 of the planchette 10 is omitted.
  • the opaque material will need to be compatible with the papermaking process such that the material forms part of the final paper product.
  • planchettes in accordance with the invention may be formed by stamping and cutting. This is not essential.
  • Figure 6 shows a planchette 20 that is formed on a substrate 22.
  • striped regions 24, 26 and 28 are formed on the substrate 22 in order to form a maple leaf figure.
  • the regions 24, 26 and 28 may be formed from different coloured foils, different coloured print with tonal variations or optical effects such as iridescence which can be viewed in transmitted light.
  • the resultant combination of opaque and semi transparent regions or printed regions forms the complex shape.
  • the substrate 22 has a simple form (a square in this example) .
  • the substrate 22 may be transparent so that the when the planchette 20 is incorporated into a paper product, the substrate 22 is not visible such that only the complex shape generated by the regions 24, 26 and 28 is visible. Furthermore, in some embodiments of the invention, the regions 24, 26 and 28 are visible in transmitted light but not in reflected light. Further, a "window” may be punched from the paper or other substrate in the form of an intricate shape, such as the shape shown in Figure 6. In effect, this "reversed out” shape gives a "negative” watermark with the surrounding regions visible in the "look through” and the inner region transparent. Another version of this embodiment comprises the punched out window which is then laminated with an optical film which can be iridescent, pearlescent or holographic such that an interesting effect is produced in transmitted light, which effect is difficult to counterfeit.
  • the planchettes incorporated into paper products are not visible in ordinary light conditions.
  • the normal appearance of the paper product is not affected by the incorporation of the planchettes into the paper.
  • the planchettes are visible in transmitted light, but are not visible in reflected light.
  • the coloured regions of the planchette are visible in lighting conditions other than ultra-violet light, for example, the coloured regions may be visible in all light conditions and in some forms of this variant, the coloured regions are visible in both transmitted and reflected light.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Paper (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Tents Or Canopies (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Abstract

L'invention concerne des motifs de contrôle destinés à être incorporés dans des produits en papier, tels que des billets de banque. Les motifs de contrôle comprennent une ou plusieurs zones colorées qui ne sont visibles qu'à la lumière ultraviolette. Ces motifs de contrôle ont des formes complexes, ou présentent des caractéristiques telles que des indentations, des reliefs et des lobes. Dans certaines formes, les motifs de contrôle forment des symboles à plusieurs côtés, tels que des symboles nationaux.
EP07733259.1A 2006-06-15 2007-06-15 Motifs de contrôle pour la protection contre la contrefaçon Not-in-force EP2032372B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0611874.9A GB0611874D0 (en) 2006-06-15 2006-06-15 Planchette for use in counterfeit protection
PCT/GB2007/002255 WO2007144657A2 (fr) 2006-06-15 2007-06-15 Motifs de contrôle pour la protection contre la contrefaçon

Publications (3)

Publication Number Publication Date
EP2032372A2 true EP2032372A2 (fr) 2009-03-11
EP2032372B1 EP2032372B1 (fr) 2014-07-23
EP2032372B8 EP2032372B8 (fr) 2014-10-08

Family

ID=36775709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07733259.1A Not-in-force EP2032372B8 (fr) 2006-06-15 2007-06-15 Motifs de contrôle pour la protection contre la contrefaçon

Country Status (3)

Country Link
EP (1) EP2032372B8 (fr)
GB (1) GB0611874D0 (fr)
WO (1) WO2007144657A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2531584B (en) * 2014-10-23 2019-07-10 Portals De La Rue Ltd Improvements in security papers and documents

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010077837A2 (fr) 2008-12-16 2010-07-08 Sun Chemical Corporation Planchettes contenant un pigment ou un colorant variable pour article sécurisé
WO2012049514A2 (fr) 2010-10-13 2012-04-19 D.W. Spinks (Embossing) Limited Motif de contrôle pour un papier de sécurité
WO2019058392A1 (fr) 2017-09-22 2019-03-28 Council Of Scientific & Industrial Research Objets mis en forme destinés à être utilisés dans des applications de sécurité
GB202017778D0 (en) 2020-11-11 2020-12-23 Security Fibres Uk Ltd Authentication of security documents
US20230264504A1 (en) * 2022-02-23 2023-08-24 The Government of the United States of America, as represented by the Secretary of Homeland Security System and method of using planchettes to detect unauthorized copying or counterfeiting in articles of manufacture

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GB1525383A (en) * 1974-08-02 1978-09-20 Portals Ltd Paper for printed sheets
GB1585533A (en) * 1976-12-07 1981-03-04 Portals Ltd Security papers
FR2669948B1 (fr) * 1990-11-29 1993-01-22 Arjomari Europ Document de securite comportant un element de securite ayant des proprietes photochromiques.
DE4101301A1 (de) * 1991-01-17 1992-07-23 Gao Ges Automation Org Sicherheitsdokument und verfahren zu seiner herstellung
IT1275558B (it) * 1995-07-14 1997-08-07 Mantegazza A Arti Grafici Foglio di sicurezza in particolare del tipo incorporante un elemento conduttore dell'elettricita'
HK1047810B (en) * 1999-09-07 2006-08-11 Iii Holdings 1, Llc Transparent transaction card with infrared blocking layer

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Title
See references of WO2007144657A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2531584B (en) * 2014-10-23 2019-07-10 Portals De La Rue Ltd Improvements in security papers and documents

Also Published As

Publication number Publication date
EP2032372B1 (fr) 2014-07-23
WO2007144657A2 (fr) 2007-12-21
EP2032372B8 (fr) 2014-10-08
WO2007144657A3 (fr) 2008-02-28
GB0611874D0 (en) 2006-07-26

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