EP0412905B2 - Sicherheitspapier - Google Patents

Sicherheitspapier Download PDF

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Publication number
EP0412905B2
EP0412905B2 EP90402264A EP90402264A EP0412905B2 EP 0412905 B2 EP0412905 B2 EP 0412905B2 EP 90402264 A EP90402264 A EP 90402264A EP 90402264 A EP90402264 A EP 90402264A EP 0412905 B2 EP0412905 B2 EP 0412905B2
Authority
EP
European Patent Office
Prior art keywords
fact
medium according
sensitive
constituted
layer
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.)
Expired - Lifetime
Application number
EP90402264A
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English (en)
French (fr)
Other versions
EP0412905A1 (de
EP0412905B1 (de
Inventor
Michel Camus
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.)
ArjoWiggins SAS
Original Assignee
ArjoWiggins SAS
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.)
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Publication date
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Application filed by ArjoWiggins SAS filed Critical ArjoWiggins SAS
Publication of EP0412905A1 publication Critical patent/EP0412905A1/de
Publication of EP0412905B1 publication Critical patent/EP0412905B1/de
Application granted granted Critical
Publication of EP0412905B2 publication Critical patent/EP0412905B2/de
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Classifications

    • 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
    • D21H21/42—Ribbons or strips
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements

Definitions

  • the invention relates to security paper, in particular a bank note paper.
  • EP-A-279 880 describes a wire transparent with metallic micro-prints obtained for example by demetallizing areas not protected by varnish. The impressions are barely visible by reflection and more visible by transparency using a magnifying device.
  • the invention aims to provide a support comprising a security element betraying falsification.
  • Document US-A-4 037 007 describes a security paper with boards comprising a substance capable of taking part to a coloring reaction, and when the document is checked with one or more reagents, the substance changes color. This substance only reacts a colorformer like those used in papers carbonless. It is an authentication process and not a process for betraying falsification.
  • Document EP-A-0 319 157 describes a safety wire which is manufactured by metallic deposit on the wire, printing using a resistant varnish and demetallization chemically. Once the wire as well realized, and this thread introduced into the paper, we don't call for demetallization to highlight falsification. The same is true in the documents US-A-4,652,015 and GB-A-2,213,908.
  • Document GB-A-1 095 286 describes a microprinted security thread. Some micro-prints may be sensitive to chemical reagents, this sensitivity allowing to appear reversibly in a given color the impressions. This brings an authentication feature more over safety but there is no way highlighting a forgery.
  • the wire can be an aluminum sheet complex between two plastic sheets. This thread is clearly visible in the paper.
  • Another object of the invention is therefore to provide a support comprising a security element which further retains some detectable security cues after attempting to whiten the surface of the support.
  • the invention therefore relates to a security support printable with betraying security features falsification. These security features are as they involve at least hidden means recognition of falsification.
  • a printable security support comprising at least one security, arranged at least partially between the faces of the support, characterized by the fact that said security element consists of a support element coated with at least partially of a layer sensitive to falsifying agents, said element security also comprising means for recognizing falsification, consisting of an agent resistant to falsification agents, cooperating with said layer sensitive to falsifying agents so as to be invisible to the naked eye in transparency and in reflection before an attempt at falsification and to become visible after attack of said sensitive layer by said falsifying agent, thus allowing this recognition of falsification, said agent resistant to falsifying agents then possibly giving rise to a design or a model.
  • the agent sensitive layer falsification is a layer sensitive to the agents chosen among the group of strong bases or solvents polar.
  • the sensitive layer is, for example, a metal layer sensitive to alkalis such as aluminum.
  • the resistant agent is, for example, an impression colorless or colored. This impression can be obtained from an ink which may contain a pigment chosen from the group of mineral pigments, organic, metallic. This impression can also be obtained by chemical deposition of a metal inert towards tampering agents.
  • the support element is flexible and is made of a material synthetic, for example polyester.
  • the security element is constituted a polyester strip comprising on one side a metallic coating with resistant prints to falsifying agents.
  • the security element may consist of a polyester strip comprising on one side a metallic coating and on the other face of prints resistant to falsifying agents.
  • the security element may consist of a polyester strip comprising on one side an impression not sensitive to polar solvents and on the opposite side or the same side an impression sensitive to polar solvents.
  • the support is for example a sheet of paper obtained by the wet method and made up of cellulosic fibers, possibly synthetic fibers, binders, fillers. It can consist of a plastic sheet, possibly coated a layer to improve the impression.
  • Figure 1 shows in cross section a security element according to the invention before introduction in the holder.
  • Figure 2 shows the appearance of a printed medium on the surface and with a security element of figure 1.
  • Figure 3 shows a support according to the figure 2, which was subjected to forgery agents.
  • Figures 4A and 4B are top views of the security element according to the invention before and after action of falsifying agents.
  • FIG. 5 shows in section another mode of the security element according to the invention.
  • the security support 1 is flat and printable. It has a security element 2 which is at least partially between the faces upper and lower of the support 1.
  • FIG 1 there is shown a security element 2 which is completely arranged inside the support 1.
  • this security element 2 is visible with the naked eye in transparency, i.e. in light transmitted. On the other hand, in reflected light, it is much less visible. So this security element 2 seems identical to a security element of the prior art, namely a covered polyester yarn of a continuous metallic layer. But this security element 2 includes recognition means 3 hidden falsification, these means being reactive to falsifying agents.
  • the support 1 having on the surface impressions 3 which indicate for example the value 4 of the cutoff.
  • the element safety 2 is an element, for example a wire or a fiber, or a confetti, or a coated board a layer sensitive to falsifying agents and provided at least partially with a protective agent the sensitive layer, this agent being resistant to falsifying agents.
  • the skilled person is capable, knowing falsifying agents, to choose a sensitive layer agents and a protective agent resistant to same agents. So if the falsifying agents are basics, those skilled in the art may choose to coating the element (wire, fiber, confetti) with a dissolving metal to the bases and to provide the element with a layer partial or total of a base resistant varnish.
  • An exemplary embodiment is to coat a wire of polyester 5 (figure 1) with a layer 6 of aluminum and to print using a colorless varnish 7 above of the aluminum layer, this varnish being resistant at the bases, we get a dark wire 8 as in the figure 4A.
  • the paper is then printed on the surface to form, by example, a bank note.
  • the counterfeiter will use a basic solution, possibly with detergent solutions, the aluminum layer will be dissolved and as the varnish is resistant at the bases, an impression 9 will appear, which will be visible transparently, while the paper becomes without surface printing.
  • the wire will therefore not visible by the counterfeiter (Figure 3), in reflection. Through against, in transparency, the counterfeiter will clearly see an impression (as shown in the figure 4B). For example, if varnish printing forms the word "false”, the infringer will be dissuaded from reprinting the ticket to change its value.
  • Another embodiment is to coat a polyester sheet entirely of aluminum, on a face, and completely of varnish on other face, this varnish being resistant to bases and being colored.
  • the varnish may include, according to another example, fluorescent dyes, resistant to bases. Thus the boards will appear gray before falsification and fluorescent after falsification.
  • the security elements according to the invention are distinguished elements of the prior art. In effect, the latter never use the layer couple sensitive to falsifying agents / resistant agent to falsifying agents.
  • Application EP-A- 319 157 describes a wire which may include metallic inks as a print or wire that has been demetallized for example by means of a laser beam. This thread, once introduced into the paper, if it is subjected to a base, loses its metallic impression, but no case, it appears after falsification a means recognition of falsification, this means being invisible before tampering.
  • Another embodiment of the invention is the deposit 10 of aluminum on one side of polyester II (figure 5) and chemical deposition (to form a pattern) of a metal resistant to bases, for example nickel.
  • a metal resistant to bases for example nickel.
  • the security element can be inserted into a support which can be paper containing more or less synthetic or mineral fibers or support may be a sheet of synthetic material printable, such as the POLYART® sold by the plaintiff.
  • the printed characters are dried at 130 ° C. These characters are transparent. We thus obtain a solid safety wire, uniform color. This thread is introduced in paper by known techniques.
  • a security thread is made as in the example 2 but using an ink consisting of a mixture of two inks: a white ink and a black ink. These inks have the particularity to resist well to chemical attacks. We can add to these inks any other mineral pigment to give them a hue special. Ink color is a function of tint characters that we want so that they become not discernible on the security thread after introduction in the paper. The attempt at falsification, as in the previous examples, will show the text printed as in example 2.
  • a safety thread according to the invention is obtained as follows: on one side of a polyester support 23 microns we print by chemical deposition of nickel by the methods known from the prior art (Bayprint process from the company BAYER for example). On the other side, a layer of aluminum is deposited (vacuum aluminization). This thread introduced into the paper seems quite common and does not appear no clue. This thread reacts as in the previous examples, attempts at falsification.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)

Claims (14)

  1. Bedruckbares Sicherheits-Trägermaterial, das mindestens ein Sicherheitselement aufweist, das mindestens teilweise zwischen den Oberflächen des Trägermaterials angeordnet ist, dadurch gekennzeichnet, daß das genannte Sicherheitselement besteht aus einem Trägerelement, das mindestens teilweise von einer Schicht bedeckt ist, die gegenüber Fälschungsmitteln empfindlich ist, und das genannte Sicherheitselement außerdem Mittel zur Erkennung der Fälschung aufweist, die bestehen aus einem gegenüber Fälschungsmitteln beständigen Agens, das mit der genannten, gegenüber den Fälschungsmitteln empfindlichen Schicht in der Weise kooperiert, daß es vor einem Fälschungsversuch im durchscheinenden Licht und im reflektierenden Licht mit bloßem Auge nicht sichtbar ist und nach dem Angriff an der genannten empfindlichen Schicht mittels des genannten Fälschungsmittels sichtbar wird, wobei das gegenüber Fälschungsmitteln beständige Agens gegebenenfalls dann eine Zeichnung oder ein Muster entstehen läßt.
  2. Trägermaterial nach Anspruch 1, dadurch gekennzeichnet, daß es sich bei der gegenüber Fälschungsmitteln empfindlichen Schicht um eine Schicht handelt, die empfindlich ist gegenüber Fälschungsmitteln, die ausgewählt werden aus der Gruppe der starken Basen und der polaren Lösungsmittel.
  3. Trägermaterial nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß es sich bei der empfindlichen Schicht um eine gegenüber Basen empfindliche Metallschicht handelt.
  4. Trägermaterial nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß es sich bei dem beständigen Agens um einen farblosen, farbigen oder fluoreszierenden Aufdruck handelt.
  5. Trägermaterial nach Anspruch 4, dadurch gekennzeichnet, daß die Druckfarbe ein Pigment enthält, das ausgewählt wird aus der Gruppe der mineralischen, organischen und metallischen Pigmente.
  6. Trägermaterial nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Trägerelement flexibel ist und aus einem synthetischen Material besteht.
  7. Trägermaterial nach Anspruch 6, dadurch gekennzeichnet, daß das Trägerelement flexibel ist und aus Polyester besteht.
  8. Trägermaterial nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Sicherheitselement besteht aus einem Polyesterstreifen, der auf einer Oberfläche einen gegenüber Basen empfindlichen Metallüberzug aufweist, der mit gegenüber Fälschungsmitteln beständigen Aufdrucken versehen ist.
  9. Trägermaterial nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Sicherheitselement besteht aus einem Polyesterstreifen, der auf einer Oberfläche einen gegenüber Basen empfindlichen Metallüberzug und auf der anderen Oberfläche gegenüber den Fälschungsmitteln beständige Aufdrucke aufweist.
  10. Trägermaterial nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Sicherheitselement besteht aus einem Polyesterstreifen, der auf einer Oberfläche einen gegenüber polaren Lösungsmitteln unempfindlichen Aufdruck und auf der gegenüberliegenden Oberfläche oder der gleichen Oberfläche einen gegenüber polaren Lösungsmitteln empfindlichen Aufdruck aufweist.
  11. Trägermaterial nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß es besteht aus einem Blatt Papier, das auf nassem Wege erhalten wurde und besteht aus Cellulosefasern, gegebenenfalls synthetischen Fasern, Bindemitteln und Füllstoffen (Beschwerungsmitteln).
  12. Trägermaterial nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß es besteht aus einer Kunststoffolie, die gegebenenfalls von einer Schicht zur Verbesserung des Aufdrucks überzogen ist.
  13. Verfahren zur Herstellung eines Trägermaterials nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß man
    eine flexible Folie mit einer gegenüber Basen empfindlichen Metallschicht bedeckt,
    eine der Oberflächen der flexiblen Folie mit einer gegenüber Fälschungsmitteln beständigen Druckfarbe bedruckt, wobei der Aufdruck in bezug auf die Metallschicht unsichtbar ist,
    die so überzogene und bedruckte flexible Folie zerschneidet zur Herstellung von Fasern, Endlosfäden oder Streifen (Brettchen), und
    die so erhaltenen Fasern, Fäden oder Streifen (Brettchen) mindestens teilweise in das Innere eines bedruckbaren Trägermaterials einführt.
  14. Verfahren zur Herstellung eines Trägermaterials nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß man
    eine flexible Folie mit einer gegenüber Basen empfindlichen Metallschicht bedeckt,
    eine der Oberflächen der flexiblen Folie durch chemische Abscheidung von Nickel bedruckt, wobei der Aufdruck in bezug auf die Metallschicht unsichtbar ist,
    die so überzogene und bedruckte flexible Folie zerschneidet zur Herstellung von Fasern, Endlosfäden oder Streifen (Brettchen), und
    die so erhaltenen Fasern, Fäden oder Streifen (Brettchen) mindestens teilweise in das Innere eines bedruckbaren Trägermaterials einführt.
EP90402264A 1989-08-11 1990-08-08 Sicherheitspapier Expired - Lifetime EP0412905B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910826 1989-08-11
FR8910826 1989-08-11

Publications (3)

Publication Number Publication Date
EP0412905A1 EP0412905A1 (de) 1991-02-13
EP0412905B1 EP0412905B1 (de) 1994-01-12
EP0412905B2 true EP0412905B2 (de) 2000-01-05

Family

ID=9384666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402264A Expired - Lifetime EP0412905B2 (de) 1989-08-11 1990-08-08 Sicherheitspapier

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EP (1) EP0412905B2 (de)
DE (1) DE69005943T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2627822A2 (de) * 2010-10-13 2013-08-21 D.W. Spinks (Embossing) Limited Planchette für ein wertpapier

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802724A (en) * 1972-09-11 1974-04-09 Burroughs Corp Protection system for computerized negotiable document printouts
GB1525383A (en) * 1974-08-02 1978-09-20 Portals Ltd Paper for printed sheets
US4652015A (en) * 1985-12-05 1987-03-24 Crane Company Security paper for currency and banknotes
IN173621B (de) * 1987-12-04 1994-06-18 Portals Ltd

Also Published As

Publication number Publication date
EP0412905A1 (de) 1991-02-13
DE69005943T3 (de) 2000-08-03
EP0412905B1 (de) 1994-01-12
DE69005943T2 (de) 1994-08-04
DE69005943D1 (de) 1994-02-24

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