WO1998003348A1 - Method for protecting a paper security document or identification document - Google Patents

Method for protecting a paper security document or identification document Download PDF

Info

Publication number
WO1998003348A1
WO1998003348A1 PCT/NL1997/000401 NL9700401W WO9803348A1 WO 1998003348 A1 WO1998003348 A1 WO 1998003348A1 NL 9700401 W NL9700401 W NL 9700401W WO 9803348 A1 WO9803348 A1 WO 9803348A1
Authority
WO
WIPO (PCT)
Prior art keywords
document
identification mark
identification
thickness
paper
Prior art date
Application number
PCT/NL1997/000401
Other languages
French (fr)
Inventor
Karel Johan Schell
Original Assignee
Lean B.V.
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 Lean B.V. filed Critical Lean B.V.
Priority to JP10506822A priority Critical patent/JP2000514741A/en
Priority to AU33619/97A priority patent/AU3361997A/en
Priority to EP97929598A priority patent/EP0918649B1/en
Priority to DE69701810T priority patent/DE69701810T2/en
Priority to US09/230,104 priority patent/US6395191B1/en
Publication of WO1998003348A1 publication Critical patent/WO1998003348A1/en

Links

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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • 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
    • B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
    • 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
    • B42D25/29—Securities; Bank notes
    • B42D2035/08—
    • B42D2035/50—

Definitions

  • the invention relates to a method for protecting a paper-thin valuable document or identification document on which an identification mark has been placed.
  • the object of the invention is to provide a method of the type mentioned in the preamble which leads to banknotes or identification documents whose abovementioned unique number or mark, or part thereof, is very difficult to counterfeit.
  • the method referred to in the preamble is characterized in that at least part of said identification mark is repeated at another point by changing the thickness of the document locally.
  • the repeat of said identification mark or part thereof is preferably carried out by reducing the thickness of the document by means of laser etching.
  • Laser etching which is carried out by local removal of, for example, slightly less than half the thickness of the paper or plastic, clearly links the identification mark or part thereof to the paper substrate.
  • security which is linked to the identification mark is provided. No hologram, film or kinoform image is therefore added, but only substrate material is removed to a certain depth.
  • Oxidizing bleaching agents are for instance peroxides, hypochlorides , persalts such as potasiumpermanganate (KNMO / .), potasiumpersulphate (K 2 S 2 0 8 ) , sodium perborate (NAB0 3 ) , sodium percarbonate (NA 2 C0- * ,) and ozon (0 3 ) . It is not excluded that the substrate itself comprises an oxidizing bleaching agent, in which case the treatment with a bleaching agent immediately after the laser edging can be omitted.
  • the invention can be successfully used on a banknote, where the identification mark is the banknote number, and the repeated part oi' the identification mark obtained by changing the thickness of the document locally is the so-called check digit of the banknote number.
  • the invention also relates to a valuable document or identification document on which an identification mark has been placed, at least part of which is repeated by means of the method described above by changing the thickness of the document locally.
  • This figure shows a copy of a banknote, on a slightly enlarged scale .
  • the unique identification number 3681209 ⁇ 30 is produced on the paper of the banknote by means of a printing technique.
  • the last two digits, 30, which are known by the term "check digit" are repeated at another point on the banknote by removing the paper over part of the paper thickness, preferably no more than half the paper thickness, by laser etching. Therefore, by local thinning, additional protection which is linked to the existing mark is achieved. This local thinning constitutes an extremely great complication for a counterfeiter. The protection against counterfeiting has therefore been greatly improved by a simple trick.
  • the banknote or the document can be made of plastic with the thickness and flexibility of paper.
  • the identification number concerned it is quite possible for the identification number concerned to be applied by laser etching all the way through the paper, instead of by printing.

Abstract

In order to protect a paper-thin valuable document or identification document on which an identification mark has been placed, for example by means of a printing technique or by a laser technique, in such a way that counterfeiting is extremely difficult, at least part of said identification mark is repeated at another point by changing the thickness of the document locally. At least part of the identification mark is thus clearly linked to the paper substrate.

Description

METHOD FOR PROTECTING A PAPER SECURITY DOCUMENT OR IDENTIFICATION DOCUMENT
The invention relates to a method for protecting a paper-thin valuable document or identification document on which an identification mark has been placed.
The fact that all kinds of copying techniques have become available to the public means that it is becoming increasingly important to protect banknotes and documents permitting the identification of persons. Counterfeiting must become increasingly difficult, and protection must always be ahead of the equipment available to the counterfeiter. Banknotes and passports or other identification documents always have a number or other specific mark by means of which they can be recognized as unique notes or documents.
The object of the invention is to provide a method of the type mentioned in the preamble which leads to banknotes or identification documents whose abovementioned unique number or mark, or part thereof, is very difficult to counterfeit.
According to the invention, the method referred to in the preamble is characterized in that at least part of said identification mark is repeated at another point by changing the thickness of the document locally.
The repeat of said identification mark or part thereof is preferably carried out by reducing the thickness of the document by means of laser etching. Laser etching, which is carried out by local removal of, for example, slightly less than half the thickness of the paper or plastic, clearly links the identification mark or part thereof to the paper substrate. By local thinning of the paper or paper-thin plastic, security which is linked to the identification mark is provided. No hologram, film or kinoform image is therefore added, but only substrate material is removed to a certain depth.
As a consequence of laser etching the part of the document having the locally reduced thickness, gets a brown colour, most likely caused by the fact that the energy rich laser beam burns the substrate a little bit. The brown coloured marks, which are dark with respect to the surrounding substrate, do not have the appearance of a water mark. Comparing the printed marks with the repeated marks becomes difficult.
By exposing the part of the document on which the repeated part of the identification mark has been placed, to bleaching or decolouring, the brown colour vanishes. A pre-treatment with a bleaching or decolourizing agent, for instance by an impregnated pad, may take place immediately after the laser etching. Oxidizing bleaching agents are for instance peroxides, hypochlorides , persalts such as potasiumpermanganate (KNMO/.), potasiumpersulphate (K2S208) , sodium perborate (NAB03) , sodium percarbonate (NA2C0-*,) and ozon (03) . It is not excluded that the substrate itself comprises an oxidizing bleaching agent, in which case the treatment with a bleaching agent immediately after the laser edging can be omitted.
The invention can be successfully used on a banknote, where the identification mark is the banknote number, and the repeated part oi' the identification mark obtained by changing the thickness of the document locally is the so-called check digit of the banknote number.
The invention also relates to a valuable document or identification document on which an identification mark has been placed, at least part of which is repeated by means of the method described above by changing the thickness of the document locally. The invention will now be explained further with reference to the figure. This figure shows a copy of a banknote, on a slightly enlarged scale .
It can be seen in the figure that on the lower right-hand side the unique identification number 3681209^30 is produced on the paper of the banknote by means of a printing technique. The last two digits, 30, which are known by the term "check digit", are repeated at another point on the banknote by removing the paper over part of the paper thickness, preferably no more than half the paper thickness, by laser etching. Therefore, by local thinning, additional protection which is linked to the existing mark is achieved. This local thinning constitutes an extremely great complication for a counterfeiter. The protection against counterfeiting has therefore been greatly improved by a simple trick. Instead of being made of paper, the banknote or the document can be made of plastic with the thickness and flexibility of paper. Furthermore, it is quite possible for the identification number concerned to be applied by laser etching all the way through the paper, instead of by printing.
Methods other than laser etching for changing the thickness of the document locally, and repeating at least part of the identification mark in this way, also fall within the scope of the inventive idea.

Claims

Claims
1. Method for protecting a paper-thin valuable document or identification document on which an identification mark has been placed, characterized in that at least part of said identification mark is repeated at another point by changing the thickness of the document locally.
2. Method according to Claim 1, characterized in that the repeat of said identification mark or part thereof is carried out by reducing the thickness of the document by means of laser etching.
3- Method according to claim 2, characterized in that said part of the document on which the repeated part of the identification mark has been placed, is exposed to bleaching or decolouring.
4. Method according to one of the preceding claims, characterized in that the document is a banknote, in that the identification mark is the banknote number, and in that the repeated part of the identification mark obtained by changing the thickness of the document locally is the so-called check digit of the banknote number.
5. Valuable document or identification document on which an identification mark has been placed, at least part of which identification mark is repeated by means of the method according to one of the preceding claims by changing the thickness of the document locally.
PCT/NL1997/000401 1996-07-23 1997-07-09 Method for protecting a paper security document or identification document WO1998003348A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP10506822A JP2000514741A (en) 1996-07-23 1997-07-09 How to protect banknotes or identity documents
AU33619/97A AU3361997A (en) 1996-07-23 1997-07-09 Method for protecting a paper security document or identification document
EP97929598A EP0918649B1 (en) 1996-07-23 1997-07-09 Method for protecting a paper security document or identification document
DE69701810T DE69701810T2 (en) 1996-07-23 1997-07-09 METHOD FOR PROTECTING A PAPER SECURITY OR IDENTIFICATION DOCUMENT
US09/230,104 US6395191B1 (en) 1996-07-23 1997-07-09 Method for protecting a paper security document or identification document

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1003663 1996-07-23
NL1003663A NL1003663C1 (en) 1996-07-23 1996-07-23 Method of securing a paper-thin value or identification document.

Publications (1)

Publication Number Publication Date
WO1998003348A1 true WO1998003348A1 (en) 1998-01-29

Family

ID=19763257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1997/000401 WO1998003348A1 (en) 1996-07-23 1997-07-09 Method for protecting a paper security document or identification document

Country Status (7)

Country Link
US (1) US6395191B1 (en)
EP (1) EP0918649B1 (en)
JP (1) JP2000514741A (en)
AU (1) AU3361997A (en)
DE (1) DE69701810T2 (en)
NL (1) NL1003663C1 (en)
WO (1) WO1998003348A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6372394B1 (en) 1997-02-20 2002-04-16 Securency Pty Ltd Laser marking of articles
EP1661729A2 (en) 2004-11-30 2006-05-31 MERCK PATENT GmbH Laser marking of valuable documents
AU2003257466B2 (en) * 2002-07-18 2007-08-02 Giesecke & Devrient Gmbh Security document
EP2143565A1 (en) 2005-05-12 2010-01-13 Giesecke & Devrient GmbH Safety paper and method for its production
US8083894B2 (en) 2005-07-12 2011-12-27 Giesecke & Devrient Gmbh Method for manufacturing a security paper
WO2012007420A1 (en) * 2010-07-12 2012-01-19 Bundesdruckerei Gmbh Method for producing a security document having raised customized haptic markings and security document
US8256683B2 (en) 2002-07-25 2012-09-04 Orell Fussli Sicherheitsdruck Ag Security document and verification method

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20011889A1 (en) * 2001-09-10 2003-03-10 Elmiva S A S Di Walter Mantega PROCEDURE AGAINST COUNTERFEITING AND COUNTERFEITING OF VALUABLE DOCUMENTS, IN PARTICULAR BANKNOTES
GB0303051D0 (en) * 2003-02-11 2003-03-19 William Sinclair & Sons Statio Identifiable documents
DE10346633A1 (en) * 2003-10-08 2005-05-12 Giesecke & Devrient Gmbh value document
RU2381906C2 (en) 2004-05-05 2010-02-20 Гизеке Унд Девриент Гмбх Valuable document
US7588817B2 (en) * 2005-03-11 2009-09-15 Jds Uniphase Corporation Engraved optically variable image device
JP5441317B2 (en) 2006-06-20 2014-03-12 キヤノン株式会社 Stamping apparatus and image forming apparatus
GB0613707D0 (en) 2006-07-10 2006-08-16 Rue De Int Ltd Data identification document
EP2174796B1 (en) 2008-10-07 2012-07-25 European Central Bank Method for laser-marking a document, the document showing a fixed colour in a surrounding with a colour shift effect
EP2174797A1 (en) 2008-10-07 2010-04-14 European Central Bank Laser-marked document showing a colour-shift effect
FR2942334B1 (en) * 2009-02-18 2011-02-18 Att METHOD AND DEVICE FOR SECURING DOCUMENTS AGAINST COUNTERFEITING
US9876941B2 (en) * 2014-09-22 2018-01-23 Kabushiki Kaisha Toshiba Image forming apparatus, decoloring apparatus and image forming method
PL440024A1 (en) 2021-12-29 2023-07-03 Polska Wytwórnia Papierów Wartościowych Spółka Akcyjna Method for producing a watermarked paper substrate and a security paper substrate, in particular a security paper, obtained by such method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634098A1 (en) * 1985-10-11 1987-04-16 Oesterr Nationalbank METHOD AND DEVICE FOR PRODUCING REALITY (CODING) CHARACTERISTICS ON SECURITIES
EP0388090A1 (en) * 1989-03-10 1990-09-19 THOMAS DE LA RUE & COMPANY LIMITED Sheet with security device
DE4334847A1 (en) * 1993-10-13 1995-04-20 Kurz Leonhard Fa Value document with window
WO1995026274A1 (en) * 1994-03-29 1995-10-05 Industrial Automation Integrators (Iai) B.V. Carrier representing value and comprising patterns applied by a laser beam

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IN173621B (en) * 1987-12-04 1994-06-18 Portals Ltd
US5324200A (en) * 1988-08-25 1994-06-28 American Dental Technologies, Inc. Method for enlarging and shaping a root canal
US5284364A (en) * 1992-06-10 1994-02-08 Anvik Corporation Increased-security identification card system
DE4436897A1 (en) * 1994-10-15 1996-04-18 Elastogran Gmbh Method for labeling shaped articles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634098A1 (en) * 1985-10-11 1987-04-16 Oesterr Nationalbank METHOD AND DEVICE FOR PRODUCING REALITY (CODING) CHARACTERISTICS ON SECURITIES
EP0388090A1 (en) * 1989-03-10 1990-09-19 THOMAS DE LA RUE & COMPANY LIMITED Sheet with security device
DE4334847A1 (en) * 1993-10-13 1995-04-20 Kurz Leonhard Fa Value document with window
WO1995026274A1 (en) * 1994-03-29 1995-10-05 Industrial Automation Integrators (Iai) B.V. Carrier representing value and comprising patterns applied by a laser beam

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6372394B1 (en) 1997-02-20 2002-04-16 Securency Pty Ltd Laser marking of articles
AU2003257466B2 (en) * 2002-07-18 2007-08-02 Giesecke & Devrient Gmbh Security document
US8827314B2 (en) * 2002-07-18 2014-09-09 Giesecke & Devrient Gmbh Security document
US8256683B2 (en) 2002-07-25 2012-09-04 Orell Fussli Sicherheitsdruck Ag Security document and verification method
EP1661729A2 (en) 2004-11-30 2006-05-31 MERCK PATENT GmbH Laser marking of valuable documents
EP2143565A1 (en) 2005-05-12 2010-01-13 Giesecke & Devrient GmbH Safety paper and method for its production
US8083894B2 (en) 2005-07-12 2011-12-27 Giesecke & Devrient Gmbh Method for manufacturing a security paper
WO2012007420A1 (en) * 2010-07-12 2012-01-19 Bundesdruckerei Gmbh Method for producing a security document having raised customized haptic markings and security document

Also Published As

Publication number Publication date
EP0918649B1 (en) 2000-04-26
DE69701810T2 (en) 2000-11-09
EP0918649A1 (en) 1999-06-02
NL1003663C1 (en) 1998-01-28
AU3361997A (en) 1998-02-10
DE69701810D1 (en) 2000-05-31
US6395191B1 (en) 2002-05-28
JP2000514741A (en) 2000-11-07

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