EP0500726B1 - Watermarked plastic support - Google Patents

Watermarked plastic support Download PDF

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Publication number
EP0500726B1
EP0500726B1 EP19900917296 EP90917296A EP0500726B1 EP 0500726 B1 EP0500726 B1 EP 0500726B1 EP 19900917296 EP19900917296 EP 19900917296 EP 90917296 A EP90917296 A EP 90917296A EP 0500726 B1 EP0500726 B1 EP 0500726B1
Authority
EP
European Patent Office
Prior art keywords
fact
characterized
mark
opacity
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.)
Revoked
Application number
EP19900917296
Other languages
German (de)
French (fr)
Other versions
EP0500726A1 (en
Inventor
Christophe Halope
Alain Barthez
Jean-Paul Menez
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.)
Arjo Wiggins SA
Original Assignee
Arjo Wiggins SA
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
Priority to FR8914925A priority Critical patent/FR2654386B1/en
Priority to FR8914925 priority
Application filed by Arjo Wiggins SA filed Critical Arjo Wiggins SA
Priority claimed from AT90917296T external-priority patent/AT89514T/en
Publication of EP0500726A1 publication Critical patent/EP0500726A1/en
Application granted granted Critical
Publication of EP0500726B1 publication Critical patent/EP0500726B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9387387&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0500726(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Anticipated expiration legal-status Critical
Application status is Revoked legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H21/00Non-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
    • D21H21/14Non-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
    • D21H21/40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/10Watermarks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/508Supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/333Watermarks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/351Translucent or partly translucent parts, e.g. windows
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369Magnetised or magnetisable materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373Metallic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • B42D25/382Special inks absorbing or reflecting infra-red light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • B42D25/387Special inks absorbing or reflecting ultra-violet light
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24835Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/25Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/252Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/25Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/256Heavy metal or aluminum or compound thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31855Of addition polymer from unsaturated monomers

Abstract

A printable flexible synthetic support bearing at least one authenticating or security marking. The support comprises: a synthetic substrate; at least one marking on at least one of the sides of the substrate, said marking consisting of at least one layer of a composition which alters the opacity of the substrate; and at least one layer of a printable pigmentary composition deposited on the marked side, and optionally on the unmarked side, of the substrate. The marking is invisible or barely visible in reflected light, but clearly visible in transmitted light. Applications in synthetic paper security.

Description

  • La présente invention concerne un support plastique imprimable filigrané contenant des marques de sécurité présentant un effet ressemblant à celui des filigranes. The present invention relates to a plastic support printable watermarked containing security marks having an effect resembling that watermarks. Ces marques sont désignées par la suite sous le vocable pseudo filigranes. These brands are referred to hereinafter under the term pseudo watermarks.
  • Il est courant de filigraner des feuilles de papier. It is common to watermark paper sheets. Le filigranage du papier peut se faire de différentes manières selon que l'on réalise des filigranes dits "véritables" ou des filigranes artificiels appelés "pseudo filigranes". Watermarking paper can be done in different ways depending on whether it carries out so-called watermarks "genuine" or artificial watermarks called "pseudo watermarks".
  • On sait que les papiers fiduciaires et de sécurité comportent des filigranes qui sont obtenus, lors de la fabrication de la feuille de papier par des formes rondes comportant des empreintes en creux et/ou en relief ou à l'aide de rouleaux filigraneurs comportant des dessins en creux et/ou en relief associés à une table plate (machine Fourdrinier). It is known that security papers and security have watermarks that are obtained during the manufacture of the paper sheet with round shapes having indentations and / or raised or using watermarking rolls with drawings recessed and / or raised associated with a flat table (Fourdrinier machine). On obtient alors une image qui, lorsqu'on regarde la feuille de papier en transmission, apparaît soit claire, si le rouleau filigraneur comporte un dessin en relief, soit ombrée, si le rouleau filigraneur comporte un dessin en creux. An image is then obtained which, when viewed in the transfer paper, appears to be clear, if the watermark roll includes a raised design or shaded, if the watermark roll includes a hollow drawing. Les zones claires sont dues au fait que l'épaisseur de la feuille et la densité des fibres sont plus faibles que l'épaisseur de la feuille et la densité des fibres dans les zones où il n'y a pas eu empreinte par le rouleau filigraneur. The light areas are due to the fact that the thickness of the sheet and the density of the fibers are smaller than the thickness of the sheet and the fiber density in areas where there is no imprint the watermark roll . Au contraire, les zones foncées sont dues au fait que l'épaisseur de la feuille et la densité des fibres sont plus importantes. In contrast, the dark areas are due to the fact that the thickness of the sheet and the fiber density are more important.
  • Il est connu également de réaliser des pseudo filigranes par impression ou dépôt d'une composition, généralement grasse, qui transparentise la feuille de papier de façon permanente. It is also known to make pseudo watermarks by printing or deposition of a composition, usually fat, which transparentized the paper permanently. La transparentisation peut être faite également grâce à une matière thermofusible ; The transparentization may also be made by a hot melt; dans la demande de brevet EP-203499 cette matière est un polyéthylène. in EP-203499 patent application this material is polyethylene.
  • La réalisation d'un pseudo filigrane dans une feuille de papier peut aussi se faire en opacifiant des zones déterminées, grâce à l'utilisation d'un agent opacifiant. The realization of a pseudo watermark in a sheet of paper can also be clouding in certain areas, through the use of a clouding agent.
    La demande de brevet FR-2 353 676 décrit un procédé utilisant un agent modifiant l'opacité, à savoir qui augmente l'opacité ou en variante qui diminue l'opacité. Patent Application FR-2353676 describes a method using a modifier opacity, i.e. increasing opacity, or alternatively which reduces the opacity.
  • Cet agent peut être une suspension aqueuse d'un pigment ou d'une charge ou une solution d'un composé chimique, d'un composé coloré ou d'une teinture. This agent may be an aqueous suspension of a pigment or a filler or a solution of a chemical compound, a colored compound or a dye. Cet agent est appliqué pendant la fabrication de la feuille, sur la nappe fibreuse et avant son enlèvement de la toile, de sorte que ledit agent pénètre dans les interstices de la nappe et provoque une modification de l'opacité de la nappe à traiter dans les zones choisies, après séchage. This agent is applied during manufacture of the sheet, on the fibrous web and prior to removal of the fabric, so that said agent penetrates the interstices of the web and causes a change in the opacity of the web to be treated in selected zones after drying.
  • Cette technique a l'inconvénient de nécessiter des dispositifs spéciaux de rouleaux pour appliquer cet agent et d'employer de préférence un dispositif d'aspiration pour faire pénétrer l'agent dans les interstices de la nappe. This technique has the disadvantage of requiring special devices rollers for applying the agent and using preferably a suction device to penetrate the Agent in the interstices of the web.
  • Cette technique complexe donne des pseudo filigranes non homogènes, le dépôt se faisant non uniformément. This complex technique gives inhomogeneous pseudo watermarks, the deposit is not being evenly.
  • Le brevet US-4 520 063 décrit une feuille en résine synthétique contenant des marques de sécurité analogues à un filigrane. US-4,520,063 discloses a synthetic resin sheet containing similar security markings to a watermark. On applique deux colorants ayant des vitesses de migration différentes dans la feuille, la migration de celui migrant le plus vite étant arrêtée par la réticulation d'un agent de réticulation contenu dans la feuille ou ajouté au colorant. Applying two dyes having different migration rates in the sheet, the migration of migrant that the faster being stopped by the crosslinking of a crosslinking agent contained in the sheet or added to the dye. On observe, en lumière réfléchie un motif qui a la couleur de ce colorant à la surface de la feuille, et en lumière transmise on observe un motif de couleur mixte. Is observed in reflected light pattern that has the color of the dye to the surface of the sheet, and transmitted light is observed a pattern of mixed color.
  • Ce procédé de réalisation d'un pseudo filigrane dans une feuille plastique est délicat car il nécessite une sélection non évidente de colorants ayant des vitesses de migration différentes dans un matériau donné et il nécessite une opération de réticulation. This method of providing a watermark nickname in a plastic sheet is tricky because it requires non-obvious selection of dyes with different migration rates in a given material and requires a crosslinking operation.
  • Il est parfois intéressant d'employer une feuille en matière synthétique à la place d'une feuille en papier, constituée essentiellement de fibres de cellulose, par exemple pour fabriquer des documents devant être conservés longtemps ou devant résister à des conditions de manipulations néfastes. It is sometimes advantageous to employ a plastic sheet instead of a paper sheet, consisting mainly of cellulose fibers, for example to produce documents to be preserved long time or have to withstand adverse conditions manipulation. De tels documents peuvent être des diplômes, les diplômes devant durer pendant au moins toute la vie de son détenteur. Such documents can be degrees, diplomas to last at least throughout the life of the holder. Il peut s'agir aussi d'autres documents notamment de valeur comme par exemple des titres, billets de banque, cartes d'identité, passeports. These may also include other documents of value such as securities, banknotes, identity cards, passports.
  • Il est important que de tels documents portent des marques d'authentification, en particulier des filigranes comme les documents en papier. It is important that such documents are certification marks, especially watermarks like paper documents.
  • Les techniques de filigranage décrites précédemment pour le papier sont difficilement applicables aux feuilles en matière synthétique. watermarking techniques described above for the paper are difficult to apply to plastic films. Elles ne sont pas applicables notamment aux feuilles ayant pour base un film thermoplastique. They do not apply in particular to the leaves being based on a thermoplastic film.
  • Un but de l'invention est donc de fournir une feuille constituée notamment de matière synthétique qui soit imprimable et qui comporte des marques d'authentification ou de sécurité qui soient peu visibles et même invisibles en lumière réfléchie et parfaitement visibles en lumière transmise. An object of the invention is therefore to provide a particular sheet made of synthetic material which is printable and which has authentication or security marks which are hardly visible and even invisible in reflected and perfectly visible in transmitted light light.
  • Un autre but de l'invention est d'empêcher les contrefacteurs ou imitateurs de reproduire de telles marques d'authenticité. Another object of the invention is to prevent counterfeiters or imitators to reproduce such marks of authenticity.
  • Un troisième but de l'invention est de fournir un procédé de fabrication d'une telle feuille, ce procédé étant rapide et économique. A third object of the invention is to provide a method of manufacturing such a sheet, this method being rapid and economical.
  • La demanderesse a découvert de manière surprenante qu'une feuille constituée notamment de matière synthétique peut être pseudofiligranée par dépôt ou impression d'une composition modifiant l'opacité à des endroits déterminés sur un substrat en matière synthétique. The Applicant has surprisingly found that a sheet made in particular of synthetic material may be pseudofiligranée by deposition or printing opacity-altering composition at locations determined on a plastic substrate. Cette composition est ensuite recouverte par une couche pigmentée imprimable. This composition is then covered by a printable pigment layer. Il est remarquable que les marques obtenues soient pas ou peu visibles en lumière réfléchie et visibles en lumière transmise. It is remarkable that the resulting marks are not or barely visible in reflected and transmitted light visible light. Ce procédé est avantageusement simple. This process is advantageously simple. Un autre avantage notable de ce procédé est de permettre la réalisation de pseudo filigranes de plusieurs tons (dégradés de clair à foncé, par exemple ombrés) ; Another notable advantage of this process is to allow the realization of pseudo watermarks several shades (gradient from light to dark in, for example shaded); ce type de filigrane est plus difficile à imiter et présente plus de données d'authentification qu'un filigrane uni. this type of watermark is more difficult to imitate and presents more of authentication data that a united watermark.
  • De plus, le fait qu'on dépose finalement une couche pigmentée imprimable rend les marques réalisées difficilement accessibles à un contrefacteur. Moreover, the fact that finally makes a pigmented printable layer makes brands made inaccessible to a counterfeiter.
  • Dans le cas du papier, les contrefacteurs réalisent de faux filigranes en déposant une composition modifiant l'opacité aux endroits convenablement choisis à la surface d'une feuille de papier. In the case of paper, counterfeiters realize fake watermarks by depositing an opacity-altering composition at locations suitably chosen on the surface of a sheet of paper. Dans le cas de l'invention, qui concerne une feuille synthétique, cette méthode de contrefaçon n'est pas possible. In the case of the invention, which relates to a synthetic sheet, this method of counterfeiting is not possible. En effet, si le contrefacteur se fournit dans le commerce en feuille de matière synthétique revêtue d'une couche imprimable, par exemple du POLYART ® fabriqué et vendu par la société ARJOBEX, plusieurs solutions se présentent à lui. Indeed, if the infringer to provide commercially plastic sheet coated with a printable layer, eg POLYART ® manufactured and sold by the company Arjobex, several solutions are presented to it.
  • En premier lieu, il peut déposer à la surface d'une telle feuille, une composition modifiant l'opacité à certains endroits, pour tenter de reproduire le filigrane. First, it can deposit on the surface of such a sheet, an opacity-altering composition in some places, to try to reproduce the watermark. Mais alors, les marques ainsi réalisées à la surface de la feuille seront nettement visibles en lumière réfléchie. But then, brands and performed on the surface of the sheet will be clearly visible in reflected light.
  • En second lieu, le contrefacteur pourrait dissoudre la couche superficielle imprimable du POLYART ® à l'aide de solvant, puis déposer une composition modifiant l'opacité aux endroits désirés, pour ensuite déposer à nouveau la couche imprimable en surface. Secondly, the counterfeiter may dissolve the surface printable layer of POLYART ® using solvent and then depositing a opacity-altering composition at the desired locations, then resubmit the printable layer on the surface.
  • En troisième lieu, le contrefacteur pourrait se fournir en feuille de matière synthétique non revêtue de la couche imprimable puis déposer une composition modifiant l'opacité et déposer ensuite une couche superficielle imprimable. Thirdly, the counterfeiter may provide plastic sheet not coated with the printable layer and then depositing an opacity-altering composition and then depositing a surface printable layer.
  • Or, toutes ces conditions sont extrêmement difficiles à réunir et la reproduction correcte du pseudo filigrane, notamment s'il a plusieurs tons, n'est pas possible. Now all these conditions are extremely difficult to obtain and correct reproduction of the watermark nickname, especially if there are several shades, is not possible. La méthode utilisée pour sécuriser une feuille plastique selon l'invention est donc particulièrement bien adaptée à un film synthétique imprimable. The method used to secure a plastic sheet of the invention is therefore particularly well suited to a printable plastic film.
  • Ainsi l'invention vise à fournir un support synthétique souple imprimable portant au moins une marque d'authentification ou de sécurité, ledit support comprenant : Thus, the invention aims to provide a printable flexible synthetic support bearing at least one authenticating mark or security, said medium comprising:
    • un substrat en matière synthétique, a substrate of synthetic material,
    • au moins une marque déposée ou imprimée sur au moins l'une des faces du substrat, la marque étant constituée par au moins une composition modifiant l'opacité du substrat, at least one mark deposited or imprinted on at least one side of the substrate, the mark being constituted by at least one composition altering the substrate opacity,
    • au moins une couche d'une composition pigmentaire imprimable couvrant la marque, ladite couche étant déposée sur la face portant la marque et éventuellement sur la face du substrat ne portant pas de marque ; at least one layer of a printable pigment composition covering the mark, said layer being deposited on the face carrying the mark and optionally on the face of the substrate not bearing a mark; la marque étant peu à non visible en lumière réfléchie et parfaitement visible en lumière transmise. the mark being little non visible in reflected light and perfectly visible in transmitted light.
  • La marque est mono ou polychrome. The brand is mono or polychrome.
  • La composition modifiant l'opacité est une composition pigmentaire et/ou colorée, et/ou fluorescente, elle peut être réalisée en milieu aqueux, en milieu solvant non-aqueux, ou en milieu mixte eau-solvant. The opacity-altering composition is a pigment composition and / or colored and / or fluorescent, it can be prepared in aqueous medium, of non-aqueous solvent medium or in a mixed water-solvent medium. Quand cette composition est pigmentaire, elle contient de préférence une charge minérale, par exemple du dioxyde de titane. When this composition is pigment, it preferably contains an inorganic filler, for example titanium dioxide. Elle peut aussi contenir des pigments colorés. It may also contain colored pigments. La liste des colorants convenant à l'invention n'est pas limitée. The list of dyes suitable for the invention is not limited. La composition modifiant l'opacité comprend au moins une charge minérale et/ou au moins un colorant pigmentaire et/ou soluble et/ou au moins un agent fluorescent, au moins un liant ou vernis, éventuellement au moins un dispersant et éventuellement d'autres additifs. The opacity-altering composition comprises at least one inorganic filler and / or at least one pigment dye and / or soluble and / or at least one fluorescent agent, at least one binder or varnish, optionally at least one dispersant and optionally other additives.
  • La composition modifiant l'opacité est avantageusement une encre colorée et/ou fluorescente. The opacity-altering composition is advantageously a colored and / or fluorescent ink.
  • N'importe quel substrat synthétique de base est utilisable pour réaliser l'invention. Any basic synthetic substrate is used for carrying out the invention. On emploie de préférence un film ou une feuille constituée d'au moins une polyoléfine, en particulier du polyéthylène ou du polypropylène. preferably employing a film or a sheet made of at least one polyolefin, particularly polyethylene or polypropylene. Plus particulièrement, le substrat synthétique de base contient essentiellement du polyéthylène, est formé par extrusion et est biétiré. More particularly, the basic synthetic substrate consists essentially of polyethylene, is formed by extrusion and is biaxially drawn. Ce film peut avantageusement avoir subi un traitement chimique ou de décharge Corona à sa surface afin d'améliorer sa réceptivité aux diverses compositions dont il sera revêtu. This film may preferably have been subjected to chemical treatment or corona discharge on its surface in order to improve its responsiveness to various compositions which will be coated.
  • La composition pigmentaire imprimable est de préférence une composition comprenant une charge de préférence minérale, au moins un dispersant, au moins un liant, éventuellement un agent insolubilisant, éventuellement un agent antistatique, éventuellement un agent régulateur de pH et éventuellement d'autres additifs. The printable pigment composition is preferably a composition comprising a preferably inorganic filler, at least one dispersant, at least one binder, optionally an insolubilizer, optionally an anti-static agent, optionally a pH regulating agent and optionally other additives. Ces additifs peuvent par exemple être des agents anti-mousse, des agents régulateurs de la viscosité, des cires. These additives may be for example anti-foaming agents, viscosity control agents, waxes.
  • Une telle composition pigmentaire pourra par exemple être choisie parmi celles décrites dans le brevet britannique GB 2 177 413. D'autres formules permettant d'améliorer l'imprimabilité peuvent convenir. Such pigment composition can for example be selected from those described in British Patent GB 2 177 413. Other formulas to improve the printability may agree. Certaines compositions tuent la fluorescence de la sous-couche. Some compositions kill the fluorescence of the underlayment. L'homme du métier saura adapter cette composition à la sous-couche choisie. The skilled person will adapt the composition to the selected underlay.
  • Le liant de la couche modifiant l'opacité peut par exemple être choisi dans le groupe suivant non limitatif : The binder of the opacity-altering layer may for example be selected from the following group not limited to:
    • amidons, éventuellement modifiés starches, optionally modified
    • protéines de soja Soy Protein
    • dérivés de la cellulose, en particulier une carboxyméthylcellulose cellulose derivatives, especially carboxymethyl cellulose
    • alginate alginate
    • latex, notamment synthétiques, contenant : latex, especially synthetic, containing:
      • . . des copolymères styrène-butadiène, éventuellement carboxylés styrene-butadiene copolymers, optionally carboxylated
      • . . des copolymères d'acrylates copolymers of acrylates
    • alcool polyvinylique polyvinyl alcohol
    • résines vinyliques vinyl resins
    • résines epoxy epoxy resins
    • résines mélamine-phénolique et leurs mélanges melamine-phenolic resins and mixtures thereof
  • Les charges pigmentaires pour réaliser la couche modifiant l'opacité peuvent par exemple être choisies dans le groupe suivant, donné à titre indicatif : Pigmentary fillers to achieve the opacity-altering layer may for example be selected from the following group given for guidance:
    • oxydes de titane titanium oxide
    • carbonates de calcium calcium carbonates
    • argiles clays
    • hydroxydes d'aluminium aluminum hydroxides
    • sulfoaluminates de calcium (blanc de satin) calcium sulfoaluminates (satin white)
    • sulfates de baryum (blanc fixe) barium sulphate (blanc fixe)
    • talcs talcs
    • kaolins kaolin
    • silices silicas
    • autres silicates que les talcs, kaolins Other silicates as talc, kaolin
  • Ces charges sont sous forme de fines poudres (granulométrie moyenne inférieure à 10 micromètres en général). These fillers are in the form of fine powders (average particle size below 10 micrometers generally). On peut envisager également l'utilisation de pigments plastiques (poudres de copolymères acrylonitrile-vinylidène, de polystyrène par exemple). One can also consider using plastic pigments (powders of acrylonitrile-vinylidene copolymers, polystyrene for example).
  • Les pigments colorés (ou colorants pigmentaires) peuvent par exemple être choisis dans le groupe suivant non limitatif : Colored pigments (or pigments) may for example be selected from the following non-limiting group:
    • oxydes de fer (rouge, noir par exemple) iron oxides (red, black, for example)
    • oxydes de chrome chromium oxides
    • phtalocyanines (bleues, vertes) phthalocyanine (blue, green)
    • anthraquinones (violettes par exemple) anthraquinones (for example purple)
    • quinacridones quinacridones
    • noir de carbone carbon black
    • chromates de plomb, de calcium, de baryum, de strontium lead chromate, calcium, barium, strontium
    • chromomolybdates de plomb Lead chromomolybdates
    • sulfoséléniures de plomb Lead sulphoselenides
    • composés monoazoïques, dérivés naphtamide, dérivés naphta-ortho-toluidinique, dérivés acétoacétyle monoazo compounds, naphthamide derivatives derived naphtha-ortho-toluidinique derived acetoacetyl
    • composés disazoïques, dérivés benzidinique. disazo compounds derived benzidinique.
  • Comme autres colorants, on peut utiliser les colorants solubles en milieu aqueux qui sont habituellement classés en trois catégories : As other dyes, there can be used soluble dyes in aqueous media which are usually classified into three categories:
    • les colorants basiques ; basic dyes; ce sont généralement des sels chlorhydriques de bases colorantes (par exemple la fuschine, le vert malachite) ; these are generally hydrochloride salts of color bases (e.g. fuchsin, malachite green); ces colorants ont souvent les configurations triphénilméthane ou de type azoïque. these dyes often have triphénilméthane or azo configurations.
    • les colorants acides ; acid dyes; ce sont généralement des sels alcalins, en particulier de sodium ou de potassium, de combinaisons de composés diazoiques et de l'acide sulfonique. these are generally alkaline salts, particularly sodium or potassium, combinations diazo compounds and sulfonic acid.
    • les colorants directs, dits aussi substantifs, ils sont apparentés aux colorants acides ; direct dyes, also known as nouns, they are related to acid dyes; ce sont surtout des sels de sodium de combinaisons azoïques avec des groupes sulfoniques ou carboxyliques. it is especially the sodium salts of azo compounds with sulfonic or carboxylic groups.
  • On peut combiner ces divers colorants et/ou pigments. We can combine these various dyes and / or pigments. Il faut éventuellement tenir compte du pH de la couche imprimable à déposer finalement, pour choisir ces colorants ou pigments qui pourraient être instables dans certaines conditions. It may be necessary to consider the pH of the printable layer to finally drop, choose these dyes or pigments that may be unstable under certain conditions.
  • A priori, n'importe quel agent fluorescent peut convenir, cependant il est nécessaire de tester cet agent car certains agents présentent une fluorescence dans un environnement donné et pas de fluorescence dans d'autres conditions. A priori, any fluorescent agent may be suitable, however it is necessary to test the agent for some agents exhibit fluorescence in a given environment and no fluorescence under other conditions. Il peut être important aussi que ces agents présentent une bonne tenue à la lumière visible ou invisible, cela dépend de l'utilisation du produit fini. It may be important also that these agents exhibit good resistance to visible or invisible light, it depends on the use of the finished product. Des agents présentant plus particulièrement une phosphorescence ne sont pas pas exclus. Agents specifically with phosphorescence are not excluded.
  • Les agents fluorescents peuvent par exemple être choisis dans le groupe suivant, donné à titre indicatif mais non limitatif : Fluorescers may for example be selected from the following group, given as an indication but not limited to:
    • les agents d'azurage optique habituellement employés dans le papier pour augmenter sa blancheur ; optical brightening agents usually used in the paper to increase its whiteness; il peut s'agir de dérivés de l'acide diamino-stilbène-disulfonique en particulier des dérivés du 4,4'diaminostilbène-2,2' de l'acide sulfonique, de dérivés d'hétérocycles azotés it may be derived from diamino-stilbenedisulfonic acid in particular derivatives 4,4'diaminostilbène-2,2'-sulfonic acid, derivatives of nitrogen heterocycles
    • des chlélates de terres rares (par un exemple un oxysulfure d'yttrium dopé à l'Europium) ou d'autres produits dopés (fluorures de métaux alcalins dopés, ferrites dopées), des sulfures de zinc, des sulfures de zinc et de cadmium (activés par du cuivre) rare earth chlélates (for example an yttrium oxysulfide doped with europium) or other doped products (alkali metal fluorides doped ferrites doped), zinc sulfides, zinc sulphide and cadmium ( activated by copper)
    • des dérivés de la coumarine of coumarin derivatives
    • des dérives du B-naphtol disulfoné Derivatives of B-naphthol disulfonated
    • des dérivés monoazoiques derivatives monoazo
    • des dérivés disazoiques derivatives disazo
    • la fluorescéine, l'éosine fluorescein, eosin

    et leurs mélanges éventuellement. and mixtures thereof possibly.
  • On peut utiliser aussi des pigments magnétiques, métalliques, des produits luminescents aux infra-rouges. It is also possible to use magnetic pigments, metallic, luminescent products to infrared.
  • Des pigments à base de sulfure de zinc éméttant dans diverses longueurs ont été décrits dans les demandes de brevets EP-A-34059, EP-A-78538 et EP-A-91184 déposées par KASEI OPTONIX. zinc sulfide pigments of emitting various lengths have been described in patent applications EP-A-34059, EP-A-78538 and EP-A-91184 filed by Kasei OPTONIX.
  • Un procédé préféré de réalisation d'une feuille selon l'invention consiste à imprimer au moins une fois de préférence, par héliogravure, au moins l'une des faces du substrat plastique de base au moyen d'au moins une composition modificatrice d'opacité, puis à coucher sur cette ou ces faces, et éventuellement sur l'autre face, la couche pigmentée imprimable avec l'un des moyens de couchage utilisés dans le domaine de l'impression ou de l'industrie papetière. A preferred method for producing a sheet according to the invention comprises printing at least once preferably, by gravure printing, at least one of the faces of the basic plastic substrate by means of at least one modifying composition opacity and sleeping on this or these faces, and possibly on the other side, the pigmented layer printable with a sleeping means used in the field of printing or the paper industry.
  • D'autres procédés pour déposer la composition modifiant l'opacité pris notamment dans les techniques de l'impression ou des arts graphiques peuvent convenir, mais l'héliogravure est le procédé qui fournit le dépôt le plus régulier et uniforme. Other methods for depositing the opacity-altering composition taken especially in technical printing or graphic arts may agree, but gravure is the process that provides the most consistent and uniform deposition.
  • Pour réaliser un filigrane présentant plusieurs tons on dépose en une ou plusieurs fois la composition modifiant l'opacité à des endroits choisis par dessus le premier dépôt. To make a watermark having a plurality of tones is deposited in one or more times the opacity-altering composition at selected locations on top of the first deposit. On peut utiliser la même composition ou une autre composition. the same composition or a different composition can be used.
  • D'autres éléments de sécurité peuvent être incorporés au film de base et/ou dans la couche imprimable et/ou dans la composition modifiant l'opacité. Other security features may be incorporated to the base film and / or the printable layer and / or the opacity-altering composition.
  • Les marques obtenues selon l'invention forment un pseudo filigrane qui peut également être détecté avec un appareil de lecture et/ou de reconnaissance de filigranes. The marks obtained according to the invention form a pseudo watermark which can also be detected with a reading device and / or recognition of watermarks. Lorsque les marques sont fluorescentes, on peut les détecter et les observer en surface du document en utilisant une lumière UV. When the marks are fluorescent, they can be detected and observed the surface of the paper using a UV light.
  • L'invention sera mieux comprise à l'aide des exemples suivants, nullement limitatifs mais donnés à titre d'illustration. The invention will be better understood with the following examples, in no way limiting but are given by way of illustration.
  • EXEMPLES EXAMPLES
  • Dans les exemples suivants, le substrat en matière synthétique de base est un film biétiré composé essentiellement de polyéthylène haute densité commercialisé sous la marque Polyart ® par la société ARJOBEX In the following examples, the substrate base is a biaxially drawn plastic material consisting essentially of high density polyethylene film sold under the brand Polyart ® by the company Arjobex
  • Exemple 1 example 1
  • La composition suivante modifiant l'opacité est réalisée en milieu aqueux : The following opacity-altering composition is prepared in aqueous medium:
    Figure imgb0001
  • On dépose cette composition opacifiante sur le film plastique par une machine d'héliogravure de laboratoire de façon à imprimer un motif. Depositing this opacifying composition on the plastic film by a gravure printing machine laboratory so as to print a pattern.
  • On couche ensuite le film ainsi imprimé sur les deux faces avec une composition pigmentaire imprimable à l'aide d'une coucheuse à lame d'air ; Then the film layer thus printed on both sides with a printable pigment composition by using a air knife coater; la charge pigmentaire utilisée est un mélange de poudre de carbonate de calcium et de kaolin calciné. the used pigment filler is a mixture of calcium carbonate powder and calcined kaolin.
  • Le produit final présente un motif uni non visible en lumière réfléchie et visible en lumière transmise. The final product has a non-visible solid pattern in reflected visible light and in transmitted light.
  • Le produit réalisé selon l'invention est donc un support souple en matière synthétique, imprimable qui comporte un pseudo filigrane permettant de l'authentifier. The product produced according to the invention is thus a flexible support made of synthetic material, which printer comprises a watermark nickname to authenticate.
  • Exemple 2 example 2
  • On reprend l'exemple 1 ; Returning to the example 1; à la composition opacifiante on ajoute un azurant optique. the opacifying composition is added an optical brightener. L'azurant optique est commercialisé sous la marque BLANKOPHOR P, par BAYER ; The optical brightener is marketed under the brand BLANKOPHOR P, BAYER; on en ajoute 0,24 partie en poids commercial. we added 0.24 parts by commercial weight.
  • On obtient dans ce cas un pseudo filigrane fluorescent. Is obtained in this case a fluorescent pseudo watermark.
  • Le support final peut être authentifié de plus en lumière UV. The final support can be authenticated more and UV light.
  • Exemple 3 example 3
  • La composition modifiant l'opacité est réalisée en milieu solvant non aqueux, elle contient : The opacity-altering composition is carried out in non aqueous solvent medium, containing:
    Figure imgb0002
  • On réalise un support imprimable final comme dans l'exemple 1. On obtient un support comportant un pseudo filigrane sombre. It performs a final printable media as in Example 1. a support with a dark pseudo watermark.
  • Exemple 4 example 4
  • La composition modifiant l'opacité est réalisée en milieu solvant non aqueux, elle contient : The opacity-altering composition is carried out in non aqueous solvent medium, containing:
    Figure imgb0003
  • On réalise un support imprimable final comme dans l'exemple 1. On obtient un support authentifiable par un pseudo filigrane fluorescent. a final printable media is performed as in Example 1. a support authenticated by a fluorescent pseudo watermark.
  • Exemple 5 example 5
  • On reprend l'exemple 1, à la composition opacifiante on ajoute un colorant violet VISCOFIL 4 RL PATE commercialisé par SANDOZ. Returning to the example 1, the composition is added opacifying a violet dye VISCOFIL 4 RL PATE marketed by SANDOZ. On en ajoute 0,08 partie en poids commercial. We added 0.08 parts by commercial weight.
  • On obtient alors un pseudo filigrane coloré. This produces a colored pseudo watermark.
  • Exemple 6 example 6
  • On reprend la composition opacifiante de l'exemple 1 pour laquelle on remplace le colorant noir par un colorant vert UNIPERSE GP liquide commercialisé par CIBA GEIGY. Is taken opacifying the composition of Example 1 in which the black dye is replaced with a green dye UNIPERSE GP liquid marketed by CIBA GEIGY. On en ajoute 0,32 partie en poids commercial. We 0.32 part by commercial weight.
  • On dépose à l'aide d'un aérographe un premier motif. Is deposited using an airbrush a first pattern. Sur une partie de ce motif, on dépose à nouveau par aérographe de la composition opacifiante. On a part of this pattern is deposited again by airbrush the opacifying composition.
  • Finalement on dépose une couche pigmentée imprimable comme dans l'exemple 1. Finally depositing a pigmented printable layer as in Example 1.
  • On obtient alors un support avec un pseudo filigrane coloré comportant une partie claire et une partie plus foncée ; We then obtain a carrier with a pseudo colored watermark with a light portion and a darker portion; ce filigrane est donc à deux tons. this watermark is two-tone.

Claims (13)

  1. Imprintable, flexible synthetic support bearing at least one authentication or security mark, said support comprising:
    - a substrate of synthetic material,
    - at least one mark deposited or imprinted on at least one of the faces of the substrate, said mark being constituted by at least one composition altering the substrate opacity,
    - at least one layer of an imprintable pigment composition covering the mark, said layer being deposited on the face carrying the mark and optionally on the face of the substrate without the mark; the mark being barely visible in reflected light and perfectly visible in transmitted light.
  2. Support according to claim 1, characterized by the fact that the mark is monochromatic or polychromatic.
  3. Support according to one of claims 1 or 2, characterized by the fact that the opacity-altering composition contains at least one mineral filler and at least one binder.
  4. Support according to one of claims 1 to 3, characterized by the fact that the opacity-altering composition contains at least one soluble dye and/or a pigment colorant.
  5. Support according to one of claims 1 to 4, characterized by the fact that the opacity-altering composition contains a fluorescing agent.
  6. Support according to one of claims 1 to 5, characterized by the fact that the opacity-altering composition is a dyed and/or fluorescent ink.
  7. Support according to one of claims 1 to 6, characterized by the fact that the substrate in synthetic material is a film or a sheet constituted of at least one polyolefin.
  8. Support according to claim 7, characterized by the fact that the polyolefin is selected from among polyethylene or polypropylene.
  9. Support according to one of claims 7 or 8, characterized by the fact that the substrate is essentially constituted of high-density polyethylene, is formed by extrusion, is biaxially stretched and is optionally surface-treated with corona discharges.
  10. Support according to one of claims 1 to 9, characterized by the fact that the imprintable pigment composition is preferably a composition comprising a mineral filler, at least one dispersant, at least one binder, optionally an insolubilizer, optionally an anti-static agent, optionally a pH regulating agent, and optionally other additives.
  11. Method for manufacturing a support according to one of claims 1 to 10, characterized by the fact that at least one opacity-altering composition is deposited in specific areas on at least one of the faces of a substrate in synthetic material to form at least one authentication or security mark and in that an imprintable, pigmented layer is deposited on the face with the mark and optionally also on the other face, said layer covering the mark.
  12. Method according to claim 11, characterized by the fact that the opacity altering composition is deposited by photo-etching.
  13. Method according to one of claims 11 or 12, characterized by the fact that the imprintable pigmented layer has a dry specific weight comprised between 5 and 30 g/m² and preferably about 10 g/m².
EP19900917296 1989-11-14 1990-11-13 Watermarked plastic support Revoked EP0500726B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8914925A FR2654386B1 (en) 1989-11-14 1989-11-14 watermark plastic support.
FR8914925 1989-11-14

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AT90917296T AT89514T (en) 1989-11-14 1990-11-13 Kunststofftraeger with watermark.

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EP0500726A1 EP0500726A1 (en) 1992-09-02
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US10336124B2 (en) 2013-04-11 2019-07-02 Oberthur Fiduciaire Sas Security element comprising an interference pigment and a nanometric filler

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DE69001677T2 (en) 1993-10-28
US5275870A (en) 1994-01-04
ES2042314T3 (en) 1993-12-01
FR2654386A1 (en) 1991-05-17
EP0500726A1 (en) 1992-09-02
WO1991007285A1 (en) 1991-05-30
FR2654386B1 (en) 1992-01-17

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