EP3245074B1 - Document d'identité - Google Patents

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Publication number
EP3245074B1
EP3245074B1 EP16705562.3A EP16705562A EP3245074B1 EP 3245074 B1 EP3245074 B1 EP 3245074B1 EP 16705562 A EP16705562 A EP 16705562A EP 3245074 B1 EP3245074 B1 EP 3245074B1
Authority
EP
European Patent Office
Prior art keywords
layer
excitation
assembly
structurable
deposited
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.)
Active
Application number
EP16705562.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3245074A1 (fr
Inventor
Antoine DHÔME
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.)
Surys SA
Original Assignee
Surys 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
Application filed by Surys SA filed Critical Surys SA
Publication of EP3245074A1 publication Critical patent/EP3245074A1/fr
Application granted granted Critical
Publication of EP3245074B1 publication Critical patent/EP3245074B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—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
    • 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
    • B42D25/324—Reliefs
    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/445—Marking by removal of material using chemical means, e.g. etching

Definitions

  • the present invention relates to the field of securing by multilayer films.
  • Such multilayer films also called optical security components, are said to be security in that they are used for securing identity documents, in particular such as passports and identity cards; for securing fiduciary documents in particular such as banknotes; or for securing precious goods; hereinafter "documents" for the sake of brevity.
  • a multilayer film is affixed to the document or integrated into the document.
  • the multilayer film is integrated into a security label which is affixed to said precious goods or to their packaging.
  • the present invention aims to provide an alternative and secure documents using a multilayer film comprising fluorescent pigments by UV-B and / or UV-C excitation, regardless of the presence or absence of fluorescent ink 107 under lighting in UV-A.
  • the present invention provides a new control effect for a transparent security component via perfect identification between the areas of high optical index, observable under visible lighting (spectral band 400 - 800 nm), and the areas comprising fluorescent pigments in the visible under excitation in UVB and / or UVC.
  • Document D1 discloses an identity document with a multilayer optical component.
  • the invention relates, according to a first of its objects, to an identity document as defined in claim 1.
  • a detachment layer (109) can also be provided, deposited between the structuring layer (102) and the support film (101), and which makes it possible by hot activation to subsequently separate the structuring layer (102) from the support film (101). .
  • the step consisting in depositing said assembly (1040) of at least one layer (1042) comprising fluorescent pigments when they are subjected to a light source emitting in the UV spectrum on the reflective dielectric layer (103) and in contact with it comprises the deposition of at least one layer (1042) comprising fluorescent pigments when they are subjected to a light source emitting in the UV-B or UV-C spectrum.
  • an optical component is described here as being planar. Depending on its constituent materials, it can nevertheless have a certain flexibility, in particular when the optical component is in the form of a self-adhesive label.
  • UV-A is meant the spectrum 315-400 nm, by UV-B the spectrum 280-315 nm and by UV-C the spectrum 100-280 nm.
  • a multilayer security film is intended to be observed at least in reflection. It includes a front face and a rear face ( figure 1 ).
  • the face by which the optical component can be illuminated in reflection is defined by “front face” and by “rear face” that which is intended to be in contact with a so-called “destination” support, for example paper, polycarbonate, pvc, or plastic, for example by an adhesive.
  • the destination medium can also have less transparency or opacity than that of the optical component.
  • the relative position of certain layers can influence the optical effects of said component.
  • at least certain layers are therefore deposited in a predetermined order in order to give the optical safety component its optical properties, as described later.
  • a cross section of the optical component is oriented so that the bottom of the optical component corresponds to the front face, that is to say the structuring layer 102 or the film. support 101, and that the top of the optical component corresponds to the rear face, that is to say the layer 104 or the assembly 1040, described later.
  • the term “deposited on” means that the layer A is situated above the layer B in cross section, without necessarily being in contact with this one. In terms of manufacturing process, this means, unless otherwise specified, that layer A is deposited later on layer B.
  • the figure 1 illustrates a cross section of a conventional multilayer film, intended to be affixed to a document 300 comprising a destination support 301. Its manufacturing process is as follows.
  • a structuring layer 102 is deposited on a support film 101 made of plastic, essentially allowing the manufacture of the optical component and typically of polyethylene terephthalate (PET) or equivalent.
  • the support film 101 is used essentially for the manufacture of the optical component.
  • the layer 102 is said to be “structurable” in that it is capable of locally comprising structures, that is to say reliefs and hollows, the dimensions of which (in particular the height) are typically between the nanometer and the micrometer, and which influence the reflection, diffraction or scattering of an incident electromagnetic wave.
  • Layer 102 is said to be “structured” when it includes such structures.
  • the structuring layer can be structured by hot stamping of a thermoformable varnish or by cold molding and UV crosslinking of an ad hoc varnish (casting varnish) to give the layer 102.
  • the support film 101 and the structuring layer 102 can be adjacent to or separated from each other by a set of at least one layer called the "technical layer” such as a layer called the "release” layer 109 allowing during hot activation, to subsequently separate the support film 101 from the structuring layer 102.
  • a layer of zinc sulphide (ZnS) 103 of thickness between 10 and 500 nm is deposited by thermal evaporation under vacuum or by any other suitable mode (electron beam, etc.).
  • This layer 103 of ZnS uniformly covers the entire surface of the component, that is to say the entire surface of the structuring layer 102.
  • Certain multilayer films also include the local deposition by zones of a fluorescent ink 107 by UV-A excitation.
  • the areas of a fluorescent ink 107 by UV-A excitation can be deposited not on the multilayer film but on the destination support 301, as illustrated figure 1 .
  • the fluorescent ink zones typically allow an observable pattern to be drawn in reflection.
  • the technical layer 104 is coated over the entire layer of ZnS 103.
  • the component comprises areas of fluorescent ink 107, these are also covered by the technical layer 104.
  • the technical layer 104 may be an adhesive layer, comprising an adhesive material; and / or a protective layer, comprising for example a varnish.
  • the absolute value of the variation in optical index between the structuring layer 102 and the reflective dielectric layer 103 is greater than or equal to 0.5.
  • the reflective dielectric layer 103 advantageously with a high optical index, has a relative transmission in the UV-B and / or UV-C range at most equal to 40%, is discontinuous in the plane of the component, so to make dielectric zones allowing to draw patterns. Provision is then made to coat this reflective layer of dielectric 103 with a set 1040 of at least one layer 1042 comprising fluorescent pigments by UV excitation, and in particular UV-B or UV-C, as described below.
  • fluorescent is used for brevity.
  • fluorescent should be understood as “photo luminescent”, that is to say also encompassing phosphorescence.
  • a structuring layer 102 to be deposited on a support film 101, in this case made of plastic.
  • the structuring layer 102 and the support film 101 can be directly in contact with one another, as illustrated. It is also possible to provide an assembly of at least one technical layer between the structuring layer 102 and the support film 101. For example a layer 109 called “detachment” allowing by hot activation to subsequently separate the structuring layer 102 from the support film 101 is deposited between the structuring layer 102 and the support film 101, as illustrated figure 1 .
  • a first embodiment is illustrated on the Figures 2A to 2D .
  • soluble varnish 108 for example an ink based on polyvinyl alcohol
  • selective deposition in the form of areas of soluble varnish 108 makes it possible to draw patterns 201 when they are observed at least in reflection.
  • a reflective layer of dielectric 103 typically ZnS or TiO2
  • the reflective dielectric layer 103 has been deposited by any known means, provision is made to disintegrate the layer 108, for example by immersing the optical component in a suitable bath, that is to say a bath comprising a solution which disintegrates the soluble varnish 108 in contact with it.
  • the destruction of the layer 108 has the consequence of locally removing the reflective dielectric layer 103 at the locations of each zone of soluble varnish 108, as illustrated figure 2C .
  • Such techniques are known, for example from the document US 6,896,938 .
  • the pattern 201 drawn by the disaggregated areas of the reflective dielectric layer 103 reproduces the pattern 201 drawn by the varnish areas 108 before their dissolution, which is why these two patterns here bear the same reference numeral.
  • the pattern 201 is observable by fluorescence when it is lit by a light source emitting in the UV spectrum, but less visible when it is lit by a light source emitting in the visible spectrum.
  • the layer 1042 of UV fluorescence ink can be applied selectively to the optical component, which creates zones of UV fluorescence ink making it possible to draw patterns when they are observed in reflection under UV lighting.
  • a combination of the pattern drawn by the layer 1042 of UV fluorescent ink and of the pattern 201 drawn by the disaggregated areas of the reflective dielectric layer 103 is observed under UV lighting, where the fluorescence is only observable in the zones printed in UV fluorescence ink which are not covered by the zones of reflective layer of reflective dielectric 103.
  • De-metallization or partial metallization, is known for example from the document US5145212 .
  • a partial layer of soluble varnish 108 for example an ink based on polyvinyl alcohol
  • selective deposition in the form of areas of soluble varnish 108 makes it possible to draw patterns when they are observed at least in reflection.
  • dielectric 103 typically ZnS or titanium dioxide (TiO2)
  • the pattern drawn by the zones of the disaggregated dielectric reflective layer 103 reproduces the pattern drawn by the varnish zones 108 before their dissolution (by disregarding the metallized zones).
  • the assembly 1040 can be produced by at least one of the following variants.
  • the assembly 1040 is composed of a layer 1042 of UV fluorescence ink in the visible by UV excitation, coated with a layer of glue 1043.
  • the assembly 1040 is composed of a first adhesive layer 1041, a layer 1042 of UV fluorescence ink in the visible by UV excitation (for example a protective coating layer), then a second layer adhesive 1043.
  • the assembly 1040 is composed of a single and same layer 1042 of UV fluorescence ink in the visible by UV excitation also comprising adhesive properties (see figure 4F ).
  • the assembly 1040 is applied uniformly to the optical component, in which case the pattern appearing under observation under UV light corresponds to the pattern formed by the zones of the reflective layer of disaggregated dielectric 103, the pattern of which corresponds advantageously on the grounds of the dissolved dissolving 108 ( figure 4F ), excluding metallized areas.
  • the lower face (reflection side) of the zones of the metal layer 105 is in contact with the structuring layer 102.
  • the third embodiment advantageously makes it possible, with respect to the second embodiment, to locally invert the position of the zones of the reflective dielectric layer 103 relative to the stack of zones of the metal layer 105 in direct contact with the layer protection 106, which makes it possible not to subject the dielectric deposition to the step of de-metallization of the metal which may cause deterioration of the layer.
  • the secure documents 200 have a destination medium in the form of paper or plastic which incorporates patterns 203 visible only under lighting by a light source emitting in the UV-A ( figure 5B ).
  • the decrease in transmission as a function of the thickness illustrates the filter effect exerted by the ZnS layer.
  • the fluorescence emitted by the pigments under UV-C is lower than that of the pigments under UV-B, itself lower than that of the pigments under UV-A.
  • said layer 103 is indeed a spectral filter blocking the fluorescence of the pigments of layer 1042 under UV-B or UV-C while the fluorescence of any pigments of the ink 107 remain observable.
  • a destination medium comprises an ink 107 with fluorescent pigments under UV-A lighting and that the optical component according to the invention is locally superimposed with at least one partial layer 107, the presence of dielectric 103 according to the invention does not does not prevent reading of the pattern drawn by the ink zones 107 under UV-A lighting. the optical component according to the invention is therefore compatible with the presence of such inks in a destination medium or in said optical component.
  • the areas or patterns 201 correspond to the areas of the optical component for which the dielectric 103 has been removed locally and the areas or patterns 202 correspond to the areas of the optical component for which the dielectric 103 has been kept.
  • the manufacturer of the proposed optical component has no control over the position of the patterns 203 visible under UV-A lighting
  • the creation of a pattern visible in UV-C and / or UV-B advantageously makes it possible not to hinder the reading of said patterns 203 under UV-A lighting, and vice versa, that the patterns 203 visible under UV-A lighting do not disturb the reading of patterns 201 visible under UV-C and / or UV-B lighting.
  • the multilayer film further comprises a surface having an optically variable image, also called a hologram or holographic image 205, that is to say a set of microstructured zones of the structuring layer 102 designed to produce an optically visual effect variable also known as DOVID (Diffractive Optical Variable Image Device) which in itself increases the security of the optical component.
  • an optically variable image also called a hologram or holographic image 205
  • DOVID diffractive Optical Variable Image Device
  • the DOVID commonly called “hologram” (not illustrated), observable in visible light, is generated by stamping the structuring layer 102 and is visible on the finished product only in the areas comprising a reflective layer (metal 105 or high optical index 103), that is to say in one of the zones 202.
  • hologram observable in visible light
  • the invention allows perfect trimming of the hologram in UV-C and / or UV-B by the generation of the hologram and of the pattern 201 visible in UV during the same manufacturing process, which increases the level of the optical component.
  • the lateral extension D2 of the hologram 205 prefferably in this case provision is made for the lateral extension D2 of the hologram 205 to be less than the lateral extension D1 of the structured area of the structuring layer 102 capable of carrying said hologram.
  • ink 108 can be partially deposited on the structured area of layer 102 ( figure 7A ), which gives after deposition of the dielectric layer 103 and disintegration of the ink 108, a hologram 205 whose outline is fluorescent ( figure 7B ) when illuminated by a UV-B or UV-C source, by zones 201.
  • steps can be provided which consist of lighting the document in visible light and recording the position of the hologram in a memory, lighting the document in UV-C and / or UV-B and recording the position of the pattern 201 in a memory, then compare the two images, in particular compare their position.
  • the protective layer 106 may be deposited on the metal layer 105 selectively so as to create islands whose shape, the spacing between two adjacent islands and the dimensions are predetermined, which typically makes it possible to generate a screening effect on the areas 202 comprising dielectric.
  • the dielectric layer 103 is screened, that is to say deposited in a selective manner so as to create islands whose shape, the spacing between two adjacent islands and the dimensions are predetermined, which allows to create very small insignificant surfaces in visible light which form a significant pattern under UV-B or UV-C lighting.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Laminated Bodies (AREA)
  • Optical Filters (AREA)
EP16705562.3A 2015-01-16 2016-01-15 Document d'identité Active EP3245074B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1550354A FR3031697B1 (fr) 2015-01-16 2015-01-16 Composant optique de securite.
PCT/FR2016/050083 WO2016113517A1 (fr) 2015-01-16 2016-01-15 Composant optique de securite

Publications (2)

Publication Number Publication Date
EP3245074A1 EP3245074A1 (fr) 2017-11-22
EP3245074B1 true EP3245074B1 (fr) 2020-05-20

Family

ID=52627521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16705562.3A Active EP3245074B1 (fr) 2015-01-16 2016-01-15 Document d'identité

Country Status (8)

Country Link
US (1) US9962987B2 (pt)
EP (1) EP3245074B1 (pt)
CN (1) CN107405942B (pt)
BR (1) BR112017015096B1 (pt)
FR (1) FR3031697B1 (pt)
MX (1) MX361360B (pt)
PH (1) PH12017501286A1 (pt)
WO (1) WO2016113517A1 (pt)

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
FR3031697B1 (fr) 2015-01-16 2020-12-18 Hologram Ind Composant optique de securite.
US10386848B2 (en) * 2017-02-28 2019-08-20 Blackberry Limited Identifying a sensor in an autopilot vehicle
US10539807B1 (en) * 2017-10-16 2020-01-21 SoliDDD Corp. Ambient-light-visible, floating hologram display
CN112572018B (zh) * 2019-09-29 2022-06-14 中钞特种防伪科技有限公司 多层体光学防伪元件及其制作方法
CN110936751B (zh) * 2019-12-18 2021-04-27 中国人民银行印制科学技术研究所 光学防伪元件、光学防伪产品以及光学防伪元件检测方法
CN113147216B (zh) * 2021-05-24 2022-09-13 中钞印制技术研究院有限公司 光学防伪元件及其检测、制造方法和装置、安全物品

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WO2002002301A1 (en) * 2000-06-30 2002-01-10 Verification Technologies Inc. Copy-protected optical media and method of manufacture thereof
JP2004510610A (ja) 2000-10-09 2004-04-08 ヒューエック　フォリエン　ゲゼルシャフト　エム．ベー．ハー． 金属被覆されたフィルム及びその製造方法並びに利用法
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JP2007072188A (ja) * 2005-09-07 2007-03-22 Dainippon Printing Co Ltd ホログラム、ホログラムラベル及びホログラム転写箔
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Also Published As

Publication number Publication date
PH12017501286A1 (en) 2018-01-15
MX2017009316A (es) 2017-12-11
US20180029402A1 (en) 2018-02-01
MX361360B (es) 2018-12-04
CN107405942A (zh) 2017-11-28
FR3031697B1 (fr) 2020-12-18
BR112017015096A2 (pt) 2018-04-17
US9962987B2 (en) 2018-05-08
BR112017015096B1 (pt) 2022-07-12
WO2016113517A1 (fr) 2016-07-21
FR3031697A1 (fr) 2016-07-22
CN107405942B (zh) 2018-08-03
EP3245074A1 (fr) 2017-11-22

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