FR3019495A1 - Safety device capable of lighting a reduced luminosity pattern - Google Patents

Safety device capable of lighting a reduced luminosity pattern Download PDF

Info

Publication number
FR3019495A1
FR3019495A1 FR1452908A FR1452908A FR3019495A1 FR 3019495 A1 FR3019495 A1 FR 3019495A1 FR 1452908 A FR1452908 A FR 1452908A FR 1452908 A FR1452908 A FR 1452908A FR 3019495 A1 FR3019495 A1 FR 3019495A1
Authority
FR
France
Prior art keywords
pattern
shiny
zone
substrate
protection
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.)
Pending
Application number
FR1452908A
Other languages
French (fr)
Inventor
Yvonnic Morel
Gregory Simonneaux
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.)
Idemia France SAS
Original Assignee
Idemia France 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.)
Filing date
Publication date
Application filed by Idemia France SAS filed Critical Idemia France SAS
Priority to FR1452908A priority Critical patent/FR3019495A1/en
Publication of FR3019495A1 publication Critical patent/FR3019495A1/en
Application status is Pending legal-status Critical

Links

Classifications

    • 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
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23Identity cards
    • 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
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24Passports
    • 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
    • B42D25/309Photographs
    • 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
    • B42D25/324Reliefs
    • 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
    • B42D25/346Perforations
    • 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
    • B42D25/40Manufacture
    • B42D25/405Marking
    • B42D25/41Marking using electromagnetic radiation
    • 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
    • B42D25/40Manufacture
    • B42D25/405Marking
    • B42D25/43Marking by removal of material
    • B42D25/435Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/455Associating two or more layers using heat
    • 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
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/46Associating two or more layers using pressure

Abstract

Safety device comprising a plurality of plastic layers laminated together, said plurality comprising at least one substrate (1), a pattern (3) disposed above the substrate (1) and a transparent protection (4) disposed above the pattern (3), the pattern (3) being a pattern with reduced brightness and the outer surface (5) of the protection (4) having a shiny area (6) to the right of the pattern (3).

Description

The present invention relates to a security device of the type used to certify a document such as an identity document and more particularly an advantageous arrangement for improving the rendering of a pattern with reduced brightness. A security device is conventionally used to authenticate an official document, such as an identity document (identity card, passport, residence permit, etc.). The role of a security device is to be difficult to reproduce, in order to avoid counterfeiting and the production of false documents, while being very resistant in order to prevent any modification of an authentic and / or very sensitive device. to the modification to make obvious any modification or attempt to modify an authentic device. A security device may be used as such to authenticate the origin of an official document and / or may be used to protect important information. Important information may be for example personal data associated with a holder / official document holder. Such personal data may be textual (name, date of birth, etc ...) or graphic (photo, fingerprint, _). A graphical personal data conventionally used is an identity photo of the holder. Such an identity photo plays a key role in the use of an official document, for example identity, to recognize the holder. It is therefore important that this photo ID be faithful, luminous and well contrasted to provide good visibility, so that the holder can be recognized and / or identified based on this photo ID. In view of the critical importance of this photo ID, this photo ID, when affixed to an official document, should be protected against too easy reproduction / imitation or unauthorized modification. For this purpose, an identity photo, or any other critical graphic pattern, is advantageously associated with a security device that protects it by being disposed in proximity, or more intimately nested with said pattern. Thus, different embodiments of a pattern intimately related with a safety device are known. By way of illustration, a first embodiment consists in reproducing a pattern in the form of a color image obtained by laser engraving. The principle of such an embodiment uses a matrix of pixels, each pixel comprising n sub-pixels of elementary colors. The expression of the color image is performed by selectively blackening the sub-pixels of the unwanted elementary colors by means of the laser, in order to display the remaining desired elementary colors. The problem which arises is that if such a method makes it possible to produce a color image as desired, it also introduces a lot of black into said image. The method thus produces a reduced brightness image and thereby reduces the readability of said image. Still for illustrative purposes, a second embodiment is to reproduce a pattern in the form of a grayscale image by micro-perforation. The principle of such an embodiment consists, after cutting a pattern in pixels, to perform a micro-perforation for each pixel, the size of the micro-perforation being proportional to the white intensity of the pixel. Thus, when the medium thus perforated is correctly backlit or placed on a clear support, it allows to see in transparency the desired pattern. The problem that arises is that if such a method makes it possible to produce a monochrome image as desired, as soon as and to the extent that the micro-perforated support is thick relative to the average diameter of the micro-perforations, these micro-perforations form wells. that light is struggling to cross. The method thus produces a reduced brightness image and thereby reduces the readability of said image. These two examples each illustrate an embodiment reproducing a pattern, and realized by means of supports, tools and complex technologies making it difficult to reproduce and moreover very difficult to modify. This makes it a good security device that is intimately linked here with the reproduced pattern.

Also, a way is sought to make such a reduced brightness pattern brighter in order to improve its visibility. The invention relates to a safety device comprising a plurality of laminated plastic layers, said plurality comprising at least one substrate, a pattern disposed above the substrate and a transparent protection disposed above the pattern, the pattern being a pattern with reduced brightness and the outer surface of the protection having a bright area to the right of the pattern.

According to another characteristic, the reduced-brightness pattern is obtained by laser etching, selectively blackening certain elements of a matrix of color pixels. According to another feature, the reduced brightness pattern is obtained by micro-perforation. According to another characteristic, the shiny zone has a roughness surface condition of less than 0.03 μm, preferably less than 0.02 μm. According to another feature, the outer surface of the protector is matte in an area outside the bright area. According to another characteristic, the shiny zone is set back below the mean level of the external surface of the protection. According to another characteristic, the contour of the glossy zone has a progressive transition in depth. According to another characteristic, the contour of the shiny zone has a gradual transition in roughness. The invention also relates to a thin plastic card comprising such a safety device. The invention also relates to a rolling tool for assembling a plurality of plastic layers, said plurality comprising at least one substrate, a pattern disposed above the substrate and a transparent protection disposed above the pattern, the surface of tooling adapted to come into contact with the outer surface of the protection having a shiny area to the right of the pattern. According to another characteristic, the shiny zone is disposed in excess thickness above the average level of the surface of the tooling. The invention also relates to a method of manufacturing such a safety device, comprising the following steps: rolling of a plurality of plastic layers, said plurality comprising at least one substrate, a pattern that can be etched by means of a laser, disposed above the substrate and a transparent shield arranged above the pattern, to assemble them, and laser etching in said pattern to express an image, the rolling step being performed by means of rolling tool according to one of the previous embodiments, so that the outer surface of the protection has a shiny area in line with the pattern. Other features, details and advantages of the invention will emerge more clearly from the detailed description given below as an indication in connection with drawings in which: FIGS. 1-4 show, in sectional view, four embodiments of a device according to the invention, - Figure 5 shows, in profile cutaway, an embodiment of a tool according to the invention. As illustrated in FIG. 1, a security device according to the invention comprises a plurality of layers. These layers are sheets of plastic material, such as polycarbonate, PETF, PEC, PVC or others, capable of being assembled by rolling. This plurality of layers comprises at least one substrate 1, a layer 2 adapted to receive or support a pattern 3 and a protection 4. The protection 4 is necessarily the outer layer. The substrate 1 and the protection 4 frame the intermediate layer 2 comprising the pattern 3. Other intermediate layers are possible between the substrate 1 and the pattern 2 layer or between the pattern 2 layer and the protection layer 4. The protection 4, as well as any intermediate layer 5 possible between pattern layer 2 and protection 4, is preferably transparent so that the pattern 3 is visible through. The protection protects pattern 3 at least against wear, contact, moisture, and unauthorized access. It has been found, according to an ingenious feature of the invention, that a glossy finish of the outer surface of the protection makes it possible to lighten a pattern. The combination of a pattern 3 with reduced brightness and an area 6 having a glossy finish, at least to the right of said pattern 3, makes it possible to provide a pattern 3 whose luminous rendering is improved and thus to compensate for the disadvantages of a pattern with reduced brightness. Also according to the embodiment of Figure 1, is advantageously provided a bright zone 6 at least 20 over the entire surface facing the pattern 3 to lighten. The invention is applicable to any pattern 3 with reduced brightness, regardless of its origin or its embodiment. However, for most production techniques of a pattern 3, it is possible to adjust the brightness of the pattern during production. The invention is particularly advantageous when the embodiment of the pattern 3 does not increase the brightness. This is intrinsically the case for the two illustrative embodiments described below. According to a first embodiment a reduced brightness pattern is produced by a method using laser engraving to reproduce a color image forming a security device difficult to imitate and modify. According to this method, a matrix of pixels is used, each pixel comprising n subpixels each associated with at least one of n elementary colors. The pattern to be reproduced is cut into a number of pixels corresponding to the pixels of the matrix and for each pixel a hue is determined. For each pixel, its hue is decomposed on the colorimetric basis formed by the n elementary colors to obtain a component for each of the n elementary colors. Then, by means of a laser that selectively obscures all or part of a sub-pixel, a complementary portion of the previously determined component is blackened to be masked. Thus, if a component x has been determined for a hue, the subpixel of said hue will be blackened over (100 - x)% in order to leave visible a part x% of the surface of the subpixel. The operation is repeated for all pixels and subpixels to reproduce the desired pattern. It is conceivable that such a method, in that it blackens all sub-pixels not useful in expressing a hue, produces a pattern reproducing the initial pattern, but having a high proportion of black and therefore a reduced brightness. According to another embodiment, a pattern with reduced brightness is produced by a process using micro-perforation to reproduce a monochrome image forming, here again, a security device difficult to imitate and modify. According to this method, the pattern to be reproduced is cut into a matrix of pixels. For each pixel an intensity is determined. Then, by means of a perforation means, which can here also be a laser, a micro-perforation is performed for each pixel, the surface of the micro-perforation being proportional to said intensity. This results in a pattern reproducing the initial pattern, and more particularly, when backlit. However the surface of a micro-perforation being generally very small in front of the depth of the perforation, given by the thickness of the micro-perforated support, it is created wells that the light hardly has to cross, and that all the more in the presence of 'some impact. This has the effect of darkening the pattern and detrimentally producing a pattern of reduced brightness. These two embodiments also produce security devices that perform relatively well in terms of security. Also the invention which applies well to these two cases advantageously makes it possible to produce effective safety devices, while offsetting their disadvantage of reduced brightness by improving in both cases the brightness of the pattern significantly.

A spectral measurement of comparative reflectance between a pattern covered with a matte zone and the same pattern covered with a glossy zone 8, shows a gain of up to 11% for certain frequency ranges and an average gain of more than 5. %.

During manufacture, the different layers 1, 2, 4 are arranged one on the other. It is then rolled, usually hot, exerting pressure according to the thickness of the layers to assemble the layers together, in a sustainable manner. The rolling is carried out between two pressing means, flat plates or rolls, generally metal. Thus the surface state of the outer surface 5 of the protection 4 is a function of the surface condition of the presser means opposite. It is thus possible to choose the surface condition and thus the optical finish: matte, satin or gloss that is desired. It is thus possible to realize the essential characteristic of the invention, the realization of a glossy finishing area to the right of the pattern. For this, the pressing means at the right of the pattern 3 is made with a surface state corresponding to the surface state that is desired for the zone 6 of the outer surface 5 of the protection 4 facing the pattern 3. Surface state quality is typically expressed by a measure of roughness Ra. This roughness Ra is determined as an index, the average difference between the hollows and the peaks of a surface, relative to a mean surface. As an order of magnitude, a matte finish corresponds to a roughness Ra of between 0.4 and lpm, a glossy finish corresponds to a roughness Ra around 0.03 μm and a very glossy finish corresponds to a roughness Ra around 0.02 pm. Also in the device according to the invention, can we observe the lightening effect for a roughness of less than 0.03 pm with a glossy finish, or preferably for a roughness of less than 0.02 pm with a very bright finish. The roughness at one point of the outer surface 5 of the guard 4 is directly related to the roughness of the facing pressing element used for rolling. Also, this pressure element can be machined, by any means including electro erosion or chemical, it is possible to vary this surface state from one place to another of said outer surface 5. The protection 4 being made of material plastic is sensitive to wear. Wear, mainly caused by harder objects causing scratches, tends to degrade the surface condition. Also a glossy finish tends, over time, to become matte. It follows, and all the more so since the devices are intended to live for a long time, which is the case for an identity document whose lifetime is from one to several tens of years, that a finish Original mate is most often preferred. Indeed, such an original matte finish is more aesthetic than a shiny finish matified in time by wear. Also, according to an advantageous characteristic, the outer surface 5 of the protection 4 is matte, outside the glossy zone 6, either in the remaining zone or areas, or the non-facing zones of a pattern, shown (s) 7 on Figures 1-4. According to a first embodiment, more particularly illustrated in FIG. 1, the shiny zone 6 is reduced to the sole pattern 3 and exactly covers said pattern 3. Thus the outline 9 (or the border 9) of the shiny zone 6 merges with the contour 8 of the pattern 3. According to another embodiment, more particularly illustrated in FIGS. 2-4, the shiny zone 6 covers the entire surface of the pattern 3 and also comprises a margin of 0.5 to 2 mm around the pattern 3. The outline 9 of the shiny area 6 is increased by this margin over the entire outline 8 of the pattern 3. This feature is advantageous in that it ensures that the entire surface of the pattern 3 is covered by a brilliant surface, despite the positioning tolerances of the layers 1,2, 4 between them, during assembly by rolling. However, the bright zone 6, if it is flush with the same level as the rest of the outer surface 5 of the protection 5 4 remains subject to the risk of scratching. Also according to another characteristic, more particularly illustrated in FIGS. 3, 4, the shiny zone 6 is advantageously arranged recessed below the mean level of the outer surface 5 of the protection 4. Thus the shiny zone 6 is protected against most elements likely to scratch, especially when the safety device sees its outer surface 5 rub on a laying plane, such as a table. Such a recess 10 thus makes it possible to protect the glossy zone 8 against most of the contacts. According to the various embodiments described above, and combinations thereof, there is at least one bright zone 6 for each pattern 3, and at least one matte zone 7 for the remaining surface (s). The transition between bright zone 6 and matte zone 7 can be defined as a function of depth and as a function of roughness. Thus, the variation of depth at the transition, which exists in the presence of a recess 10, can be abrupt as illustrated in FIG. 3, or more progressive as illustrated in FIG. 4. A linear variation is shown in FIG. 4, but any form of connection profile is here possible. The progressivity of the connection is advantageous, in particular in that it limits the risks of snagging on the projecting edge of the recess 10. Similarly, the variation in roughness at the transition, which may exist in all the embodiments. , can be brutal or more progressive. In this case, the roughness varies from a first contour merging with the contour 8 of the pattern 3 or a more external contour 9, towards an even more external contour. The interest of a gradual change in roughness is here mainly aesthetic. The invention also relates to a plastic card of the type defined by the ISO 7816 standard comprising such a safety device. The invention also relates to a rolling tool capable of producing a safety device according to the invention. One embodiment of such a rolling tool 11 is shown in FIG. 5. Such a rolling tool 11 comprises either two coaxial rollers between which the safety device is rolled, or two substantially flat parallel plates between which the security is in a hurry. The characteristics that will be described apply to both types: roll or plate. One of the rollers or plates is in contact with the outer face of the substrate 1, while the other is in contact with the protection 4. It is this second roll or plate which is more particularly represented and described. The tool 11 is typically made of metal. Since the rolling is carried out hot and applied to plastic layers, the tool 11 has the shape, in negative, that is desired for the safety device, and the surface condition obtained for the external surface 5 of the protection 4 corresponds to the surface state of the surface 15 of the tool 11 opposite. Also, to provide a safety device, a rolling tool 11 comprises a rolling surface 15 intended to come into contact with the outer surface 5 of the safety device. So that the outer surface 5 of the protection 4 has a shiny area 6 to the right of the pattern 3, the tool 11 comprises a zone 16, adapted to come opposite the pattern 3, which is shiny. The contour 19 of the shiny zone 16 of the tool 11 is substantially superimposed with the contour 9 of the shiny zone 6 of the device. For this purpose the zone 16 is made by any means of mechanical and / or chemical machining (milling, lapping, electroerosion, chemical treatment, etc.) to obtain the desired surface state, ie roughness less than 0.03. pm, preferably less than 0.02 .mu.m. In zone 17, not facing pattern 3, the surface state of tool 11 is that corresponding to the desired surface state for zone 7 of the safety device. Thus if a matte finish is desired for the safety device in its area 7, the surface 15 of the tool 11 in the area 17 is matte. For this, this zone 17 is made by any mechanical and / or chemical machining means making it possible to obtain a surface state corresponding to a roughness greater than 0.03 μm. If the shiny area 6 of the safety device is set back below the mean level of the outer surface 5 of the guard 4, the rolling tool 11, to achieve this characteristic, comprises the complementary feature: the shiny area 16 of the tool 11 is disposed in excess thickness 20 above the average level of the surface 15 of the tooling 11.

The invention also relates to a method of manufacturing a safety device according to the invention. Such a method comprises, in addition to a rolling step, the purpose of which is to assemble together plastic layers of a plurality comprising at least one substrate 1, a pattern 3 capable of being etched by means of a laser, disposed above the substrate 1 and a transparent protection 4 disposed above the pattern 3, a laser etching step. This laser etching step is intended to form an image in the pattern 3 by expressing by means of the laser the desired graphic and / or colorimetric elements. This laser etching step benefits from the fact that the protection 4 and possibly any layer disposed between the pattern is the outer surface 5 is transparent. It advantageously allows a unitary embodiment, device by device, and is particularly suitable for personalization of the security device. In addition, this laser etching step is advantageously applied after the rolling step. Indeed, it has been noticed that the presence of a bright zone 6 at the right of the pattern 3, that is to say in the area targeted and traversed by the laser during the etching, allowed a much better efficiency of said laser etching.

Claims (12)

  1. REVENDICATIONS1. A security device comprising a plurality of laminated plastic layers, said plurality comprising at least one substrate (1), a pattern (3) disposed above the substrate (1) and a transparent cover (4) disposed above of the pattern (3), characterized in that the pattern (3) is a pattern of reduced brightness and in that the outer surface (5) of the cover (4) has a shiny area (6) in line with the pattern ( 3).
  2. The device of claim 1, wherein the reduced brightness pattern (3) is obtained by laser etching, selectively blackening certain elements of a matrix of color pixels.
  3. 3. Device according to any one of claims 1 or 2, wherein the pattern (3) reduced brightness is obtained by micro-perforation.
  4. 4. Device according to any one of claims 1 to 3, wherein the shiny zone (6) has a surface roughness of less than 0.03 pm, preferably less than 0.02 pm.
  5. 5. Device according to any one of claims 1 to 4, wherein the outer surface (5) of the protection (4) is matte in a zone (7) outside the shiny area (6).
  6. 6. Device according to any one of claims 1 to 5, wherein the shiny zone (6) is arranged recessed (10) below the average level of the outer surface (5) of the protection (4).
  7. 7. Device according to claim 6, wherein the contour (9) of the shiny zone (6) has a gradual transition in depth. 30 35
  8. 8. Device according to any one of claims 5 or 7, wherein the contour (9) of the shiny zone (6) has a gradual transition in roughness.
  9. A thin plastic card having a security device as claimed in any one of the preceding claims.
  10. 10. Rolling tool (11) for assembling a plurality of plastic layers, said plurality comprising at least one substrate (1), a pattern (3) disposed above the substrate (1) and a transparent protection (4) disposed above the pattern (3), characterized in that the surface (15) of the tool (11) adapted to come into contact with the outer surface (5) of the protection (4) has a bright area ( 16) to the right of the ground (3).
  11. 11. Tooling (11) according to claim 10, wherein the shiny area (16) is disposed in excess thickness (20) above the average level of the surface (15) of the tool (11).
  12. 12. A method of manufacturing a safety device according to any one of claims 1 to 8, comprising the following 25 steps: - rolling a plurality of plastic layers, said plurality comprising at least one substrate (1), a laser etched pattern (3) disposed above the substrate (1) and a transparent cover (4) disposed above the pattern (3) to assemble them, and - etching laser in said pattern (3) to express an image, characterized in that the rolling step is performed by means of a rolling tool (11) according to any one of claims 10 to 11, so that the outer surface (5) of the cover (4) has a shiny area (6) in line with the pattern (3).
FR1452908A 2014-04-02 2014-04-02 Safety device capable of lighting a reduced luminosity pattern Pending FR3019495A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1452908A FR3019495A1 (en) 2014-04-02 2014-04-02 Safety device capable of lighting a reduced luminosity pattern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1452908A FR3019495A1 (en) 2014-04-02 2014-04-02 Safety device capable of lighting a reduced luminosity pattern

Publications (1)

Publication Number Publication Date
FR3019495A1 true FR3019495A1 (en) 2015-10-09

Family

ID=51225680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1452908A Pending FR3019495A1 (en) 2014-04-02 2014-04-02 Safety device capable of lighting a reduced luminosity pattern

Country Status (1)

Country Link
FR (1) FR3019495A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201376A (en) * 1987-01-13 1988-09-01 Liquid Crystal Devices Ltd Security documents
WO2003096258A2 (en) * 2002-05-10 2003-11-20 Digimarc Id Systems, Llc Identification card printer-assembler for over-the-counter card issuing
WO2011124774A1 (en) * 2010-04-07 2011-10-13 Jean Pierre Lazzari Method for customizing latent embedded images and document thus produced

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201376A (en) * 1987-01-13 1988-09-01 Liquid Crystal Devices Ltd Security documents
WO2003096258A2 (en) * 2002-05-10 2003-11-20 Digimarc Id Systems, Llc Identification card printer-assembler for over-the-counter card issuing
WO2011124774A1 (en) * 2010-04-07 2011-10-13 Jean Pierre Lazzari Method for customizing latent embedded images and document thus produced

Similar Documents

Publication Publication Date Title
DK2117840T3 (en) Security element for a security document and method for producing it
JP5127704B2 (en) Security document
US6602578B1 (en) Decorative foil
EP2040934B2 (en) Security element
US9274258B2 (en) Thin-layer element having an interference layer structure
JP4930937B2 (en) Security element
CN101528474B (en) See-through security element with microstructures
JP4888545B2 (en) Display and printed information
JP4574986B2 (en) Security elements for security papers and certificates
EP2310211B1 (en) Security element and method for the production thereof
RU2428316C2 (en) Protective element with metal coating
RU2357869C2 (en) Protective element in form of multilayer film body
US7820269B2 (en) Transfer film
US4497872A (en) Sealed identification card with blocking layers
JP4961944B2 (en) Display and printed matter
US4629215A (en) Identification card and a method of producing same
JP2016531022A (en) Security device and manufacturing method thereof
RU2326004C2 (en) High-strength base for securities
CN102292219B (en) Security element for value document
US20120242075A1 (en) Gold-colored thin-film element with multilayer structure
JP2005535485A (en) Data carrier with optically variable element
EP1322480B1 (en) Recording medium
CN102089123B (en) Security element
CN100346360C (en) Valuable document
JP5124272B2 (en) Metallized security element

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

PLFP Fee payment

Year of fee payment: 5

CD Change of name or company name

Owner name: IDEMIA FRANCE, FR

Effective date: 20180618

CJ Change in legal form

Effective date: 20180618