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
  • D21H21/44—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
• • 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
  • B42D25/351—Translucent or partly translucent parts, e.g. windows
• • 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
  • B42D25/373—Metallic materials
• • 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
  • B42D25/378—Special inks
  • B42D25/387—Special inks absorbing or reflecting ultraviolet light

Definitions

• Safety structure and article incorporating such a structure particularly relates to a safety structure and an article incorporating such a structure.
• Patent EP-B-0 319 157 discloses a valuable document such as a bank note, incorporating a demetallized security thread, the wire possibly containing a fluorescent material.
• the subject of the invention is a security structure intended to be incorporated or fixed at least partially in or on an article, for example a security and / or value document, the structure comprising: at least a first fluorescent zone capable of fluorescently emitting, under a predefined illumination condition, a visible light of a first color, at least a second fluorescent zone capable of emitting by fluorescence, under the predefined illumination condition , a visible light of a second color, different from the first, the first and second fluorescent zones being respectively observable from opposite faces of the structure.
• the color of the structure may vary from one face to the other, the structure appearing for example at least partially in blue on one side and at least partially in yellow on the other.
• Authentication and / or identification of an article comprising such a structure can thus use two observation steps from respectively two opposite faces of the article, which reinforces the protection of the article against forgery.
• the invention makes it possible, because of the presence of fluorescent zones of different colors, to create new optical effects.
• the predefined lighting condition may correspond to ultraviolet illumination, in particular of near-visible wavelength, for example around 365 nm.
• the predefined lighting condition corresponds to infrared illumination.
• At least one of the first and second fluorescent zones are substantially colorless in color.
• the first and second zones are superimposed at least partially so that, in the predefined lighting condition, the superposition of the two fluorescent zones appears in transmitted light of a third color, different from the first and second colors.
• the authentication and / or identification of an article or document incorporating such a structure may comprise, in addition to two observation steps, in the predefined lighting condition, in reflection, first and second colors, at least one observation step in transmitted light to observe the third color.
• the first and second fluorescent zones have absorption spectra chosen so that, in the predefined lighting condition, their superposition appears in transmitted light of a third or fourth color, each different from the first ones. and second colors, according to the order of the fluorescent zones traversed by the incident light.
• the difference ⁇ E between the third and fourth colors, in the CIEL * C * h 1976 color space, may be at least 2, especially at least 5, which makes it easily observable.
• Authentication and / or identification of an article or document can thus pass through the detection of four different colors, which further enhances security.
• the first fluorescent zone appears yellow and the second blue fluorescent zone, and, observed in transmitted light, the structure has a violet color when it is observed from a first face and appears substantially white when it is observed from a second side, opposite to the first.
• the colors and their number may be different from those described above.
• the first and second fluorescent zones have absorption spectra chosen so that, in the predefined lighting condition, the superposition of the two fluorescent zones appears in transmitted light of substantially the same color, whatever the observation side.
• the structure comprises at least a third fluorescent zone having a color different from the first fluorescent zone and observable on the same face, in the predefined lighting condition.
• the structure advantageously comprises: at least one third fluorescent zone appearing from the aforementioned second color, in the predefined lighting condition, the first and third zones being observable from a first face of the structure, at least one fourth fluorescent zone appearing from the first color mentioned above, in the predefined lighting condition, the second and fourth zones being observable from a second face of the structure, opposite to the first, each fluorescent zone of a face overlapping at least partially, preferably substantially exactly , with a fluorescent zone of different color of the other face.
• the structure When the order of superposition of the fluorescent zones is not without effect on the result produced during the observation in transmitted light, it is possible to observe on each side of the structure, in transmitted light, in the predefined lighting condition, an alternation of fluorescent zones appearing respectively of the third and fourth colors.
• the structure generally has the same appearance in the predefined lighting condition, which can facilitate authentication and / or identification.
• the third fluorescent zone, respectively the fourth fluorescent zone is adjacent to the first zone, respectively the second zone, these zones overlapping preferably substantially exactly.
• the structure is advantageously non-opaque in a junction region of the first and third fluorescent zones, respectively of the second and fourth fluorescent zones.
• the structure has at least one face, in particular two opposite fully fluorescent faces.
• the structure has at least one face, in particular two opposite faces, not entirely fluorescent (s), for example with fluorescent zones alternating with non-fluorescent areas.
• the structure comprises a support at least partially, in particular entirely, transparent or translucent, and carrying the fluorescent zones.
• the support may be flexible, being in particular made of plastic, for example polyester.
• At least one of the fluorescent zones may be formed by depositing a fluorescent composition on one side of the support.
• the structure for example the support, comprises at least first and second adjacent portions, the first portion having an ability to oppose the passage of light, under a given light, greater than that of the second portion.
• the first portion may be substantially opaque and / or reflective at least in the predefined lighting condition, for example under UV illumination and / or at least in ambient lighting.
• the second portion may be substantially transparent and / or translucent at least in the predefined lighting condition, for example under UV illumination and / or at least in ambient lighting.
• the aforesaid second portion is superimposed at least partially with at least one fluorescent zone or, where appropriate, with the superposition of two fluorescent zones, so that, in the predefined lighting condition, in transmitted light, the second portion appears with a color corresponding to the fluorescent zone or the superposition of the fluorescent zones.
• the second portion has a shape chosen to define a pattern, which appears, in transmitted light, brighter than adjacent regions of the structure.
• the second portion may, where appropriate, be entirely surrounded by the first.
• the first portion has a shape chosen to define a pattern, which appears, in transmitted light, darker than adjacent regions of the structure.
• the first portion may, where appropriate, be entirely surrounded by the second.
• the pattern can be chosen from one of the following elements: a letter, a drawing, a symbol, a logo, this list not being limiting.
• the aforementioned first portion is formed by a metal layer, in particular a metal deposit, and the second portion mentioned above by a demetallization of this layer.
• the structure comprises a negative or positive printing of an ink, the first portion comprising the ink and the second portion being devoid of it.
• the aforesaid second portion and the fluorescent zone at least partially covering it are non-opaque in white light so as to allow the observation, in ambient light, by transparency, of patterns present on the structure, thus providing additional security.
• the invention can thus make it possible to have, for a document, the following levels of security: first level: observation in ambient lighting, by transparency, of the second portion or portions, with recognition of the corresponding pattern (s), second level: observation fluorescent zones, by reflection, in the predefined lighting condition, third level: observation, in transmitted light, in the predefined lighting condition, of the second portion or portions, with recognition of the pattern (s) and, where appropriate , colors formed by the superposition of the fluorescent zones.
• the second portion extends over a junction region between adjacent first and third adjacent fluorescent zones, respectively second and fourth adjacent fluorescent zones.
• the first portion opaque and / or reflective above may optionally comprise a composition containing or not fluorescent pigments or dyes.
• the aforementioned first and second portions form a plurality of patterns or groups of patterns repeating, regularly or randomly, in a predetermined direction.
• the structure may comprise one of the following elements: an electronic chip, a holographic or diffractive element, a magnetic or crystalline coating, liquid crystals, a printing of a varnish, a marker, in particular biological, mineral or synthetic, an ink or a luminescent substance, a thermochromic pigment and / or piezochromic.
• the structure can be in various forms, for example strip, and constitute for example a security thread.
• the structure may have a width for example greater than 0.7 mm and preferably less than 60 mm, in particular between 1 mm and 40 mm.
• the structure is arranged to be fully incorporated in or on the security article and / or value.
• the structure comprises a support forming a carrier strip arranged to be separated from at least one fluorescent layer after application of the structure to an article, in particular a security and / or value document, the structure possibly comprising, where appropriate between the support and the fluorescent layer, at least one release layer.
• the structure may constitute for example a security patch.
• the invention further relates, in another of its aspects, an article, for example a security document and / or value, comprising a security structure as mentioned above.
• the structure may be at least partially embedded in a layer of the article, and may comprise for example alternately zones embedded in a layer of the article and exposed portions.
• the structure may alternatively come flush with one face of the article or be entirely embedded therein.
• the article may comprise, in contact with the structure, at least one fibrous layer, for example containing paper fibers, in particular cellulose fibers and / or fibers of synthetic nature.
• the article may comprise, in contact with the structure, at least one non-fibrous layer, for example plastic.
• the security structure extends from a first edge of the article to a second edge, opposite the first.
• the article may be intended to receive an impression, in particular to form a document.
• the item may be one of the following: a bank note, security paper, passport slip or cover, visa, coupon, valuable document other than a bank note for example a check or a credit card, a protection and / or authentication label, a traceability label, an optical disc, a ticket.
• the article preferably comprises a region of sufficiently transparent and / or translucent fluorescent zones so that at least a portion of the fluorescent zones is visible through said region when the article is observed, by transparency.
• the aforementioned region may correspond, for example, to an opening in the article or to at least one layer of a transparent and / or translucent material.
• the invention further relates, in another of its aspects, to a method of manufacturing an article, comprising the following steps: providing a structure as mentioned above, incorporating or at least partially transferring the structure into or onto the article .
• the method may comprise the following steps: forming the fibrous layer by deposition of fibers on a surface immersed in a dispersion of fibrous material, - bringing the structure into contact with the fibrous layer in formation.
• the method may comprise the following steps: bringing a support of at least one fluorescent layer into contact with a face of an article, transferring the fluorescent layer, after the transfer, separating the support from the fluorescent layer.
• the subject of the invention is also a method for authenticating and / or identifying an article comprising a structure as defined above, the method comprising the following steps: exposing the article in the predefined lighting condition, verify the authenticity and / or the identity of the article from the color or colors revealed by the fluorescent zones.
• the method advantageously comprises the following steps: observing the first fluorescent zone in reflected light, in the predefined lighting condition , observe the second fluorescent zone in reflected light, in the predefined lighting condition, observe the transmitted light structure, in the predefined lighting condition, - check the authenticity and / or the identity of the article from colors observed in the steps above.
• the method advantageously comprises the following steps: to observe the structure in transmitted light, in the predefined lighting condition, from a first face of the article, - to observe the structure in transmitted light, in the predefined lighting condition, from a second face of the article, opposite to the first, check the authenticity and / or the identity of the article from the colors observed in the steps above.
• FIG. 1 represents, schematically and partially, an example of article made according to the invention
• Figures 2 and 3 show, schematically and partially, in section, the structure incorporated in the article of Figure 1, according to two examples of implementation of FIGS. 4 to 13 show, schematically and partially, further examples of implementation of the structure
• FIGS. 14 to 16 show, schematically and partially, in cross-section, respectively compliant articles with various examples of the structure
• FIG. 17 schematically illustrates a step of a method of manufacturing the article of FIG. 1
• FIG. 18 represents, schematically and partially.
• Figure 19 shows, schematically and partially, in cross section, an article incorporating the structure of Figure 18, and Figure 20. schematically illustrates a step of the manufacturing method of the article of Figure 19, according to an exemplary implementation of the invention.
• the relative proportions of the various elements represented have not always been respected, the views being schematic.
• FIG. 1 shows an article 1, for example a bank note, comprising a fibrous layer 2, in which a security structure 3 according to the invention is incorporated.
• Section 1 may still be a security paper, a passport slip or cover, a visa, a coupon, a document of value other than a ticket bank, for example a check or a credit card, a protection and / or authentication label, a traceability label or an optical disc.
• Article 1 may be constituted by the structure itself, if necessary, for example in the case of a plastic banknote.
• the structure 3 is in the form of a longitudinal axis strip X, with a width smaller than that of the article 1, for example being about 15 mm or less.
• the structure 3 can be completely embedded in the article 1, as can be seen in Figure 14.
• the structure 3 is flush with a face 4 thereof.
• the structure 3 is partially embedded in the fibrous layer 2, so as to present alternately embedded and uncovered portions.
• the fibrous layer 2 may include recesses 5 leaving portions of the structure 3 discovered.
• the fibrous layer 2 may comprise, if necessary, bosses 7, shown in dashed lines in FIG. 16, situated between the recesses 5.
• Article 1 may have, where appropriate, openings facilitating observation in transmitted light.
• the structure 3 comprises for example a support 10 of transparent plastic material, in particular polyester, as shown in Figure 2.
• the structure 3 comprises a first portion 13 substantially opaque and / or reflective surrounding second portions 12 substantially transparent.
• the second portions 12 form groups of patterns 11 such as texts, as illustrated in FIGS. 6 and 7, repeating in the longitudinal direction of the structure 3.
• the patterns may alternatively represent a drawing, a symbol or a logo.
• the first portion 13 may be formed by a metal deposit and the portions 12 by a demetallization of this deposit.
• the first portion 13 is formed by a deposit of an ink obtained by negative printing and the second portions 12 correspond to the zones that are devoid of ink.
• the portions 12 and 13 may be made on only one side of the support 10, as illustrated in FIG. 2, or, alternatively, on two opposite faces of the support 10, as illustrated in FIG.
• the support 10 with the portions 13 is covered on at least one of its faces with at least one fluorescent composition.
• the support 10 and the portions 13 are covered by fluorescent compositions 15 and 16 appearing respectively in fluorescence of a first color C 1 and a second color C 2 , in a condition of predefined illumination, for example under UV light, in particular with a wavelength close to 365 nm.
• the fluorescent compositions 15 and 16 have absorption spectra chosen so that, in the predefined lighting condition, their superposition appears from a third color C 3 or a fourth color C 4 , different first and second colors C 1 and C 2 , according to the order of the fluorescent compositions traversed by the incident light.
• the fluorescent compositions 15 and 16 are, for example, those marketed by HONEYWELL.
• compositions 15 and 16 are non-opaque, so that the second portions 12 can be observed in daylight, by transparency. With reference to FIGS. 4 to 7, various steps will now be described making it possible to authenticate and / or identify article 1.
• the structure 3 When the article 1 is observed from the face 18 of the structure 3, in the predefined lighting condition, in reflection, the structure 3 appears with the first color C 1 , as illustrated in FIG. 4. By observing the article 1 from the opposite face 19, still in the predefined lighting condition, in reflection, the structure 3 appears with the second color C 2 , as illustrated in FIG.
• the structure 3 has on each face 18 or 19 a single color, in the predefined lighting condition. It is not beyond the scope of the present invention when the security structure comprises on each face fluorescent zones of different colors.
• FIGS. 8 and 9 show a structure 3 'according to the invention, presenting on opposite faces 20 and 23 an alternation of adjacent fluorescent zones
• the zones 21 and 22, respectively 24 and 25 are capable of fluorescently emitting a light of a first color C 1 , respectively of a second color C 2 , under the condition of predefined lighting.
• the fluorescent zones 21, 22, 24 and 25 have a rectangular shape. Of course, these fluorescent zones may have a different shape, for example trapezoidal. Each zone 21, respectively 22, is exactly superimposed with a zone
• each pair of fluorescent zones 21, 24 and 22 completely covers a group of portions 12.
• the color C 3 or C 4 produced by the observation in transmitted light of the fluorescent zones depends on the order in which the light passes through them.
• the authentication and / or identification of an article comprising the structure 3 ' may thus comprise the following steps: to observe the structure 3' from the face 20, respectively 23, in the predefined lighting condition, in reflection, of in order to detect the alternation of colors C1 and C2 on the face 20, respectively 23, as illustrated in FIGS. 8 and 9, - to observe the face 20, respectively the face 23, of the structure 3 'in the lighting condition predefined, by transparency, as illustrated in Figures 10 and 11, to detect the succession of groups of portions 12 having alternately colors C3 and C4.
• the intermediate portions 27 each have the colors C 3 and C 4 .
• the intermediate portion 27 would not only the two colors C 3 and C 4 , but also a portion with the color C 2 corresponding to the superposition of the zone 22 with the neighboring zone 24, which involves the falsification of the structure 3 '.
• the intermediate portions 27 may form patterns 28, for example drawings, revealing the junction between two adjacent fluorescent zones 21 and 22, respectively 24 and 25, as shown in FIG. 13. Diagrammatically and partially, in the figure 17, a paper machine of round shape.
• This machine comprises a tank 40 comprising a suspension 41 of fibers, for example cellulose fibers and / or cotton linters and / or synthetic and / or artificial fibers in which is partially immersed a cylinder of rotating fabric 42 defining a surface 43 in contact with which the fibrous layer 2 is formed.
• a suspension 41 of fibers for example cellulose fibers and / or cotton linters and / or synthetic and / or artificial fibers in which is partially immersed a cylinder of rotating fabric 42 defining a surface 43 in contact with which the fibrous layer 2 is formed.
• the structure 3 may be incorporated in the fibrous layer 2 when it is formed.
• the fibrous layer 2 comprises bosses 7, as described above, the cylinder 42 comprises reliefs 44, shown in dashed lines in FIG. 17, these reliefs 44 being constituted for example by bosses on the cylinder 42 or by one or more masks.
• FIG. 18 shows a security structure 50, in accordance with another exemplary implementation of the invention.
• This structure 50 also called “foil” or “patch”
• a support 51 for example polyester
• a release layer 52 for example wax
• optionally a layer of varnish 53 for example wax
• a first layer of a first fluorescent composition 54 the layers 53 and 54 being able to be merged together
• a layer in which one or more portions 13 are produced for example a partially demetallized metal layer
• a second layer of a second fluorescent composition 55 the layers 55 and 56 possibly being merged.
• the optional layer of varnish 53, the first fluorescent composition 54, the layer defining the portion or portions 13 and the second fluorescent composition 55 form an assembly 60 to be transferred to a fibrous layer 2, for example on the surface thereof as illustrated in Figure 19.
• the assembly 60 can in particular be transferred hot to the fibrous layer 2, as illustrated in FIG.
• the layer 2 and the structure 50 are then driven in displacement in the same direction by means of a machine comprising first 61 and second 62 rotating cylinders. After this passage, the support 51 and the release layer 52 are separated from the assembly 60, which remains integral with the layer 2.
• the layer 2 has a relatively small thickness making it possible to observe, by transparency, the assembly 60 from the face of the layer 2 opposite to the assembly 60.
• the layer 2 may for example be made of a transparent material, for example a transparent plastic material.
• the structure according to the invention may be made otherwise than in band, for example in the form of a patch.
• the structure according to the invention may comprise compositions having a fluorescence other than in the UV, for example in the infrared.
• the structures 3 and 3 'and the "foil” 50 may comprise, if desired, one of the following elements: an electronic chip, a holographic or diffractive element, a magnetic or crystalline coating, liquid crystals, a printing of a varnish, a marker, in particular a biological, mineral or synthetic marker, an ink or a phosphor, a thermochromic and / or piezochromic pigment.

Landscapes

• Credit Cards Or The Like (AREA)
• Inspection Of Paper Currency And Valuable Securities (AREA)
• Burglar Alarm Systems (AREA)
• Printing Methods (AREA)
• Road Signs Or Road Markings (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (2)

Family

ID=34952114

Family Applications (1)

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Family Cites Families (16)

• 2004
  • 2004-11-08 FR FR0452558A patent/FR2877609B1/fr not_active Expired - Fee Related
• 2005
  • 2005-10-26 BR BRPI0517712-0A patent/BRPI0517712A/pt active Search and Examination
  • 2005-10-26 AT AT05815536T patent/ATE524610T1/de not_active IP Right Cessation
  • 2005-10-26 SI SI200531405T patent/SI1831461T1/sl unknown
  • 2005-10-26 US US11/666,864 patent/US8118231B2/en not_active Expired - Fee Related
  • 2005-10-26 EP EP05815536A patent/EP1831461B1/de active Active
  • 2005-10-26 PL PL05815536T patent/PL1831461T3/pl unknown
  • 2005-10-26 WO PCT/FR2005/050903 patent/WO2006051231A2/fr active Application Filing
  • 2005-10-26 CA CA2586414A patent/CA2586414C/fr not_active Expired - Fee Related

Non-Patent Citations (1)

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