NL2004015C2 - Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment. - Google Patents

Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment. Download PDF

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Publication number
NL2004015C2
NL2004015C2 NL2004015A NL2004015A NL2004015C2 NL 2004015 C2 NL2004015 C2 NL 2004015C2 NL 2004015 A NL2004015 A NL 2004015A NL 2004015 A NL2004015 A NL 2004015A NL 2004015 C2 NL2004015 C2 NL 2004015C2
Authority
NL
Netherlands
Prior art keywords
substrate
laser
irradiation
heating
flat
Prior art date
Application number
NL2004015A
Other languages
Dutch (nl)
Inventor
Johannes Ignatius Marie Cobben
Original Assignee
Iai Bv
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 Iai Bv filed Critical Iai Bv
Priority to NL2004015A priority Critical patent/NL2004015C2/en
Priority to KR1020127019536A priority patent/KR20120107505A/en
Priority to PCT/NL2010/050884 priority patent/WO2011078674A1/en
Application granted granted Critical
Publication of NL2004015C2 publication Critical patent/NL2004015C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • B26F1/31—Perforating by non-mechanical means, e.g. by fluid jet by radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B23K26/382—Removing material by boring or cutting by boring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • 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
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • 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
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/30—Organic material
    • B23K2103/42—Plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • 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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24—Passports
    • 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
    • B42D25/346—Perforations

Abstract

The invention relates to a method and an apparatus for applying a perforation in a flat laminated substrate, such as a card having a thickness of at least 0.2 mm by irradiating the substrate by laser. When a perforation is applied by laser to such a card, it is often warped, leading to handling problems in the next processing steps. The invention may relate to a substrate which forms part of the booklet such as a passport. According to the invention the substrate is flat after the irradiation and a possible post treatment. According to a first embodiment the properties of the laser irradiation process are chosen such that the substrate is flat after the irradiation. According to a second embodiment the substrate is flattened after the irradiating by laser, for instance by heating the substrate.

Description

Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment.
5 The present invention relates to a method and an apparatus for applying a perforation in an initially flat laminated substrate having a thickness of at least 0,2 mm by irradiating the substrate by laser.
The last years increasing use of laser has been made to personalize identification 10 documents like passports and driving licences. This personalization may relate to the application of a personalised number into the identification document or the application of a perforation pattern representing the passport photograph of the bearer, hence making the falsification of these documents more difficult. This improves the safety and reliability of these documents. EP-A-0 936 975 discloses documents provided with such 15 features and the apparatuses and methods for personalising these documents.
Often the perforations are applied in a card of laminated material, having a thickness of at least 0.2 mm. This card is also provided with other personalized features like the name, address, date and place of birth and a passport photograph of the bearer. This 20 card may form the personalized document on itself, but it may also form part of a bigger document, like a passport booklet comprising several pages of which the personalized card is one of the pages. It is noted that such a laminated card can be protected against falsification and forgery by applying personalized features in the card in the form of perforations. When a perforation is applied by laser to a card, the cards are often 25 warped, leading to handling problems in the next processing steps of the card. Also, a deformed warped card is not considered to be a high quality product which conflicts with the very nature of identification documents.
The aim of the invention is to provide a method and an apparatus to avoid these 30 problems.
This aim is reached by a method for applying a perforation in an initially flat laminated substrate having a thickness of at least 0.2 mm by irradiating the substrate by laser, 2 wherein after the irradiation and a possible post treatment the substrate is flat and by a corresponding apparatus.
A first possibility for reaching this aim is by application of a laser irradiation process 5 wherein the properties of the laser are chosen such that the substrate is flat after the irradiation and by a corresponding apparatus.
An alternative possibility is to use a method wherein the substrate is flattened after the irradiating by laser. This embodiment also refers to a corresponding apparatus.
10
According to a preferred embodiment the substrate is flattened by heating the substrate.
Another preferred embodiment provides the feature that the heating member comprises two flat, temperature controlled plates, which are moveable between an inactive 15 position and a heating position and in which a substrate is clamped between both plates Yet another preferred embodiment provides the feature that transport means are adapted for transporting the substrate from the support to the heating location and that the holding means are adapted to maintain the pages of the booklet not being the substrate folded over when the substrate is in the heating location such that the substrate is 20 accessible for the heating plates from both sides.
Subsequently the present invention will be elucidated with the help of the following drawings wherein:
Figure 1: shows a cross-sectional view of a laser perforating apparatus according 25 to the prior art;
Figure 2: shows an elevated view of a laser perforating apparatus is depicted in figure 1, to which a heating apparatus according to the invention is added;
Figure 3: shows a side view of the apparatus depicted in figure 2; and
Figure 4: shows a cross sectional view of the apparatus depicted in figures 2 and 3.
30
The apparatus depicted in figure 1 shows a longitudinal support 1 over which documents 2 to be provided with a laser perforation are transported in the longitudinal direction of the support 1. To drive these documents 2, a pair of driving belts 3 is provided over the longitudinal support 2. These driving belts 3 are each wrapped around 3 two pulleys 4, of which at least one is driveable by an electric motor not depicted in the drawings. By driving the belts 3, the documents 2 are driven along the longitudinal support. The apparatus further comprises a laser unit 5, which is depicted by a rectangle. It will be clear to a skilled man that the laser unit 5 comprises both a laser source and 5 means for deflecting and control of a laser beam 6 emerging from the laser source 5. Further the apparatus comprises a control unit not depicted in the drawings, but which is adapted to control the movement of the belts 3 and hence of the document 2 and the laser unit 5.
10 The apparatus so far belongs to the prior art. Hence the problem arises that the document 2 after being perforated by laser is not completely flat anymore. Expressed otherwise it may be forced to a flat shape, but it may incorporate internal stresses which make the document return to a warped shape when the document 2 is not submitted to external forces. These stresses are generated by the thermal energy supplied by the laser 15 to the document during the perforation by the laser.
According to a first embodiment, the properties and the control of the laser are amended such that the transfer of heat to the document is minimised, so that only the energy needed to make the actual perforation is transferred to the document. This may be 20 implied by using a laser with a wavelength which is optimally absorbed by the material to be processed. For instance, when using a polycarbonate substrate the wavelength of 9.3 pm is far better absorbed than the more common wavelength of 10.6 pm. As a result the 9.3 pm wavelength does not warp the substrate whereas the 10.6 pm does.
25 Further the document can be a single card, for instance a driving licence, but it may also be formed by a card being part of a booklet, like a passport. In such a case the transport means, comprising the longitudinal support, and the belts must be adapted to the transport of the document of the booklet type. In particular the pages of the booklet different from the card, will be folded over to allow the laser to reach the card for 30 perforation, so that the transport means must be adapted to transport such a document.
Yet another solution for the problem of the warped card, resides in the application of heat to the card to release the stresses in the card. Therefore a second embodiment of the 4 invention comprises a heating member to heat the card to smooth out the stresses caused by the local application of heat of the perforating laser.
A corresponding embodiment is shown in figure 2. Herein the support 1 appears to 5 consist of three support rails la, lb and lc, over which the document 2 can be transported. Herein the outer rails have a substantial L-shape to allow a proper guiding of the document 2. Further the document 2 is composed of the actual document 2a, which is to be provided with a personalized perforation and pages 2b, which are folded over to allow the card 2a to be reached by the laser beam 6. Further three belts 3a, 3b , 10 3 c are located over the rails 2 to transport the documents in the longitudinal direction of the support. Herein the location of the belts 3a, 3b, 3c in the width of the support is chosen to make the card 2 accessible for the laser beam 6. After the laser perforation has taken place the folded document 2 is further transported along the support 1 in its longitudinal direction. Although it is possible to stop the document during the laser 15 perforation, it is also possible to execute the laser treatment during movement of the document 2.
Subsequently to the laser perforation the document is moved to a heating member, comprising two heating plates 10, of which only the upper heating plate 10a is visible in 20 figure 2. In figure 3 both heating plates 10a 10b are visible, together with a document 2 located between the two heating plates 10a, 10b.
As visible from figure 4, the lower heating plate 10b is fixed relative to the support 1, but the upper heating plate 10a is swivably connected to the support 1. This swivable 25 connection allows the upper heating plate 10a to swivel between its inactive position wherein movement of the document 2 is possible and a an active, heating position wherein the document 2 is enclosed between the two heating plates 10a, 10b to allow intimate contact between the document 2 and each of the heating plates 10a, 10b. As stated before the laser perforated document 2 is transported to the location in between 30 the two heating plates, when the heating plate 10a is in its upper, inactive position.
When the document has arrived in this position, the upper heating plate 10a is moved to its lower position and the document is clamped between the heating plates 10a, 10b The heating plates are constantly kept at a certain adjustable temperature which is controlled by a control loop consisting of a temperature sensor, a heating element and control 5 electronics. The heating and subsequent cooling of the document 2 leads to a release of the internal mechanical stresses in the material of the document 2, so that it retakes its flat shape. After the heating of the document, the upper heating plate is raised to its upper, inactive position and the document 2 is transported further for further processing. 5 During this further transport it is cooled down.
You attention is drawn to the fact that the heating takes place by contact between heated bodies 10 and the document 2. It is conceivable that the same effect can be achieved by other means of transfer of heat, for instance by radiation or by convection. However an 10 advantage of the method using contact heat, is the fact that the application of heat coincides with the pressing of the document 2 in the required flat shape, so that flattening of the document is promoted.

Claims (14)

1. Werkwijze voor het aanbrengen van een perforatie in een aanvankelijk vlak gelamineerd substraat met een dikte van tenminste 0.2 mm door het met laser bestralen 5 van het substraat, met het kenmerk, dat na het bestralen en een mogelijke nabehandeling het substraat vlak is.Method for providing a perforation in an initially flat laminated substrate with a thickness of at least 0.2 mm by laser irradiating the substrate, characterized in that after the irradiation and a possible after-treatment the substrate is flat. 2. Werkwijze volgens conclusie 1, met het kenmerk, dat de werkwijze wordt toegepast op een substraat dat deel uitmaakt van een boekje en dat de rest van het 10 boekje is omgevouwen opdat het substraat van tenminste één zijde toegankelijk is.2. Method as claimed in claim 1, characterized in that the method is applied to a substrate that forms part of a booklet and that the rest of the booklet is folded over so that the substrate is accessible from at least one side. 3. Werkwijze volgens conclusie 1 of 2, met het kenmerk, dat de eigenschappen van het laserbestralingsproces zodanig zijn dat het substraat na de bestraling vlak is.Method according to claim 1 or 2, characterized in that the properties of the laser irradiation process are such that the substrate is flat after the irradiation. 4. Werkwijze volgens conclusie 3, met het kenmerk, dat de golflengte van de laser hoofdzakelijk 9,3 urn is wanneer het substraat polycarbonaat is.The method according to claim 3, characterized in that the wavelength of the laser is essentially 9.3 µm when the substrate is polycarbonate. 5. Werkwijze volgens conclusie 4, met het kenmerk, dat het substraat na de bestraling door de laser vlak wordt gemaakt. 20Method according to claim 4, characterized in that the substrate is flattened after the irradiation by the laser. 20 6. Werkwijze volgens conclusie 5, met het kenmerk, dat het substraat door verwarming vlak wordt gemaakt.Method according to claim 5, characterized in that the substrate is flattened by heating. 7. Werkwijze volgens conclusie 6, met het kenmerk, dat het substraat wordt 25 verwarmd door het substraat aan weerszijden in contact te brengen met een verwarmd lichaam.7. Method according to claim 6, characterized in that the substrate is heated by bringing the substrate into contact with a heated body on either side. 8. Werkwijze volgens conclusie 6 of 7, met het kenmerk, dat het substraat tussen de bestraling en het verwarmen wordt getransporteerd. 30Method according to claim 6 or 7, characterized in that the substrate is transported between the irradiation and the heating. 30 9. Inrichting voor het aanbrengen van een perforatie in een aanvankelijk vlak gelamineerd substraat met een dikte van tenminste 0.2 mm, omvattende een bestralings-steunorgaan voor het gedurende het bestralen ondersteunen van het substraat, een lasereenheid voor het met laser bestralen van het substraat voor het aanbrengen van de perforatie, met het kenmerk, dat de inrichting is ingericht voor het afleveren van een vlak substraat.9. Device for applying a perforation in an initially flat laminated substrate with a thickness of at least 0.2 mm, comprising an irradiation support member for supporting the substrate during irradiation, a laser unit for laser irradiating the substrate for the applying the perforation, characterized in that the device is adapted to deliver a flat substrate. 10. Inrichting volgens conclusie 1, met het kenmerk, dat de inrichting is ingericht 5 voor het perforeren van een substraat dat deel uitmaakt van een boekje en dat de inrichting houdmiddelen omvat voor het omgevouwen houden van de resterende pagina’s van het boekje opdat het substraat van tenminste één zijde toegankelijk is.Device as claimed in claim 1, characterized in that the device is adapted to perforate a substrate that forms part of a booklet and that the device comprises holding means for keeping the remaining pages of the booklet folded over so that the substrate of at least one side is accessible. 11. Inrichting volgens conclusie 9 of 10, met het kenmerk dat de laser een 10 golflengte heeft van hoofdzakelijk 9,3 pm terwijl the substraat polycarbonaat is.11. Device as claimed in claim 9 or 10, characterized in that the laser has a wavelength of substantially 9.3 µm while the substrate is polycarbonate. 12. Inrichting volgens conclusie 9, 10 of 11, met het kenmerk dat de inrichting een verwarmingselement omvat dat is ingericht voor het verwarmen van het substraat nadat het substraat is bestraald. 15Device as claimed in claim 9, 10 or 11, characterized in that the device comprises a heating element which is adapted to heat the substrate after the substrate has been irradiated. 15 13. Inrichting volgens conclusie 12, met het kenmerk dat het verwarmingselement twee platen waarvan de temperatuur beheersbaar is omvat, die beweegbaar zijn tussen een inactieve positie en een verwarmingspositie en die zijn ingericht om tussen de twee platen een substraat te klemmen. 20Device as claimed in claim 12, characterized in that the heating element comprises two plates, the temperature of which is controllable, which are movable between an inactive position and a heating position and which are adapted to clamp a substrate between the two plates. 20 14. Inrichting volgens conclusie 13, gekenmerkt door transportmiddelen voor het transporteren van het substraat van het steunorgaan naar de verwarmingsplaats en dat de houdmiddelen zijn ingericht voor het omgevouwen houden van de resterende pagina’s van het boekje wanneer het substraat zich in de verwarmingspositie bevindt een van 25 beide zijden toegankelijk voor de verwarmingsplaten.14. Device as claimed in claim 13, characterized by transporting means for transporting the substrate from the support member to the heating place and in that the holding means are adapted to keep the remaining pages of the booklet folded over when the substrate is in the heating position one of 25 both sides accessible to the heating plates.
NL2004015A 2009-12-24 2009-12-24 Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment. NL2004015C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL2004015A NL2004015C2 (en) 2009-12-24 2009-12-24 Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment.
KR1020127019536A KR20120107505A (en) 2009-12-24 2010-12-23 Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment
PCT/NL2010/050884 WO2011078674A1 (en) 2009-12-24 2010-12-23 Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2004015A NL2004015C2 (en) 2009-12-24 2009-12-24 Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment.
NL2004015 2009-12-24

Publications (1)

Publication Number Publication Date
NL2004015C2 true NL2004015C2 (en) 2011-06-27

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NL2004015A NL2004015C2 (en) 2009-12-24 2009-12-24 Method and apparatus for applying a perforation in an initially flat laminated substrate wherein the substrate is flat after irradiation and a possible posttreatment.

Country Status (3)

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KR (1) KR20120107505A (en)
NL (1) NL2004015C2 (en)
WO (1) WO2011078674A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015112105A1 (en) * 2014-01-21 2015-07-30 Общество С Ограниченной Ответственностью "Специализированное Предприятие "Голография"" Method for producing a perforated integral stack of polycarbonate sheets

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936975A1 (en) * 1996-11-05 1999-08-25 Industrial Automation Integrators (Iai) B.V. Security feature comprising a perforation pattern
WO2002033652A1 (en) * 2000-10-20 2002-04-25 Datacard Corporation Method for verifying a perforation pattern serving as a security characteristic
DE102004055495A1 (en) * 2004-11-17 2006-05-24 Bundesdruckerei Gmbh Personnel document in booklet form
WO2006066803A1 (en) * 2004-12-17 2006-06-29 Giesecke & Devrient Gmbh Card-shaped data carrier
DE102007018450A1 (en) * 2007-04-19 2008-10-30 Bundesdruckerei Gmbh Laminated safety document e.g. identity card, has inner layers connected with overlaying foils by lamination process, and document group with lamination temperature resistance greater than or equal to specific degree Celsius

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936975A1 (en) * 1996-11-05 1999-08-25 Industrial Automation Integrators (Iai) B.V. Security feature comprising a perforation pattern
WO2002033652A1 (en) * 2000-10-20 2002-04-25 Datacard Corporation Method for verifying a perforation pattern serving as a security characteristic
DE102004055495A1 (en) * 2004-11-17 2006-05-24 Bundesdruckerei Gmbh Personnel document in booklet form
WO2006066803A1 (en) * 2004-12-17 2006-06-29 Giesecke & Devrient Gmbh Card-shaped data carrier
DE102007018450A1 (en) * 2007-04-19 2008-10-30 Bundesdruckerei Gmbh Laminated safety document e.g. identity card, has inner layers connected with overlaying foils by lamination process, and document group with lamination temperature resistance greater than or equal to specific degree Celsius

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WO2011078674A1 (en) 2011-06-30
KR20120107505A (en) 2012-10-02

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