GB2460716A - A method and apparatus for validating printed matter - Google Patents

A method and apparatus for validating printed matter Download PDF

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Publication number
GB2460716A
GB2460716A GB0810551A GB0810551A GB2460716A GB 2460716 A GB2460716 A GB 2460716A GB 0810551 A GB0810551 A GB 0810551A GB 0810551 A GB0810551 A GB 0810551A GB 2460716 A GB2460716 A GB 2460716A
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GB
United Kingdom
Prior art keywords
printed
substrate
visible
digits
ink
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.)
Granted
Application number
GB0810551A
Other versions
GB0810551D0 (en
GB2460716B (en
Inventor
James Crowther
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.)
SECURITY PRINT SOLUTIONS Ltd
Original Assignee
SECURITY PRINT SOLUTIONS Ltd
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 SECURITY PRINT SOLUTIONS Ltd filed Critical SECURITY PRINT SOLUTIONS Ltd
Priority to GB0810551.2A priority Critical patent/GB2460716B/en
Publication of GB0810551D0 publication Critical patent/GB0810551D0/en
Publication of GB2460716A publication Critical patent/GB2460716A/en
Application granted granted Critical
Publication of GB2460716B publication Critical patent/GB2460716B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B42D25/382—Special inks absorbing or reflecting infrared light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
    • B42D15/0013—
    • 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
    • G07D7/0006—
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/004—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
    • G07D7/0047—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip using checkcodes, e.g. coded numbers derived from serial number and denomination
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/005—Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations
    • G07D7/0053—Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations involving markings added to a pattern, e.g. interstitial points
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/202—Testing patterns thereon using pattern matching
    • G07D7/206—Matching template patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B42D2035/08—
    • B42D2035/50—

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Accounting & Taxation (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)

Abstract

A method and apparatus for validating printed matter, particularly cheques or documents, is disclosed. This is achieved by comparing a visible sequence of digits, marks or a code 106 printed on a substrate 100 with a hidden sequence of digits, marks or a code 102 also printed on the substrate 100 which becomes visible when the substrate 100 is viewed with non-visible radiation, such as infrared light. The hidden sequence of digits 102 may be formed by printing the digits, marks or code as a visible first printed portion that absorbs both visible and invisible radiation then printing a second printed portion 104 visible digits, marks or code over the hidden code 102 at least partially obscuring it. The second printed portion 104 should absorb visible radiation but should not absorb non-visible radiation. When exposed to non-visible radiation, the hidden digits, marks or code 102 can be discerned and compared to the visible digits, marks or code 106 to validate the printed matter. The colour of the inks used to print the hidden sequence 102 and the cover layer 104 is preferably the same. In another embodiment the visible digits, marks or code 106 could also be invisible, perhaps being discernable under ultraviolet radiation. The printed matter may be a document or a cheque.

Description

--
HIDING INFORMATION ON A DOCUMENT FOR USE IN VALIDATION
The present invention relates to the validation of documents and relates particularly but not exclusively, to validating cheques.
Cheques, which are commonly used to provide payment, have the problem that they can be easily forged. A method currently used in an attempt to prevent such forgery is to print a sequence of digits on each cheque using magnetic ink. Such digits are illustrated on the cheque shown in figure 1. When a cheque 10 is validated, the number sequence 12 on the cheque is read by a magnetic ink character recognition device. This number sequence is then compared to a list of number sequences held by the bank for which the cheque was manufactured or to a list of number sequences which have already been printed on cheques by the manufacturer. If a forger has printed the number sequence on a forged cheque using ink which is not magnetic, the cheque is immediately identified to have been forged. If the number sequence on a forged cheque is infact printed in magnetic ink but the number sequence does not match a valid number sequence held by the bank or cheque manufacturer, the cheque is also deemed to have been forged.
A problem with this method is that the number sequence used in cheque validation is clearly printed on the surface of the cheque allowing a skilled forger to easily forge a valid cheque. A particular problem associated with cheque forgery is that of cloning. In this technique a forger obtains bank account details of a person or company known to have money in their account. An account is then opened by the forger using this name. In order to extract money from the person or companies account it is only necessary to change the account numbers to produce a cheque matching those of the account containing the funds.
Once the account has been opened in the person or company name, in order to clone a cheque similar to that in figure 1, all that is required is for a forger to obtain a quantity of magnetic ink, to copy the number sequence printed on a valid cheque and print it on the forged cheque using magnetic ink.
Preferred embodiments of the present invention seek to
overcome the above disadvantages of the prior art.
According to an aspect of the present invention, there is provided a printed material comprising:-a substrate; at least one first printed portion printed on said substrate using a first ink, said first printed portion containing at least one first shape; at least one second printed portion printed on said substrate using a second ink at least partially obscuring said first printed portion; and at least one third printed portion printed on said substrate and containing at least one second shape corresponding to at least one said first shape; wherein at least one of said first and second ink absorbs visible radiation in a first range of frequencies and absorbs non-visible radiation in a second range of frequencies and the other of said first and second ink absorbs visible radiation in a range of frequencies substantially corresponding to said first range and substantially does not absorb radiation in said second range. -3-.
By hiding a first printed portion, which may be printed in the form of a sequence of characters and/or numbers, provides the advantage that information conveyed by such characters and/or numbers is non-visible to a person viewing the substrate under normal conditions using visible radiation. If the substrate is a cheque or a document, the hidden information may be used in validation purposes, wherein if a forger is unaware that such hidden information is present, a forged cheque on which such hidden information is printed has a higher chance of being recognised as having been so forged.
A further advantage associated with the hiding of information in accordance with an aspect of the present invention, is that a cheque or document becomes more difficult to clone.
This is because in order to forge a cheque a person is required to remove a portion of ink from both the first and second printed portions and reapply it, as opposed to the removal and reapplication of a single type of ink as in the
case of the prior art.
The use of micro numismatics, as disclosed in UK Patent Number GB2411862 which is incorporated herein by reference, further increases the difficulty of forging a cheque. When information is hidden on a cheque in accordance with the present invention, the cheque incorporating micro numismatics, when a forger removes the ink of the first and second printed portions in an attempt to alter the information printed on the cheque, they also remove the micro numismatics on the surface of the cheque. Therefore the forger is required to reapply the micro numismatics and the inks of the first and second printed portions in order to alter the cheque. The removal and reapplication of three types of ink is substantially more difficult the removal and reapplication of a single type of ink as in the prior art providing the advantage that a cheque is more difficult to forge.
In a preferred embodiment at least one said shape is a digit.
In another preferred embodiment at least one said shape is a character.
In a further preferred embodiment said substrate is a cheque.
In a preferred embodiment said substrate is a document.
According to another aspect of the present invention, there is provided a method of printing on a substrate, comprising the steps:-printing at least one first printed portion printed on a substrate using a first ink, said first printed portion containing at least one first shape; printing at least one second printed portion printed on said substrate using a second ink at least partially obscuring said first printed portion; and printing at least one third printed portion printed on said substrate and the third printed portion containing at least one second shape corresponding to at least one said first shape; wherein at least one of said first and second ink absorbs visible radiation in a first range of frequencies and absorbs non-visible radiation in a second range of frequencies and the other of said first and second ink absorbs visible radiation in a range of frequencies substantially corresponding to said first range and substantially does not absorb radiation in said second range.
In a preferred embodiment said second printed portion is printed on said substrate before said first printed portion.
In a preferred method at least one shape is a digit.
In another preferred method at least one said shape is a character.
In a further preferred method said substrate is a cheque.
In a preferred method said substrate is a document.
According to a further aspect of the present invention there is provided a method of validating the authenticity of a printed material, comprising the steps of:-receiving a printed material as previously discussed; illuminating at least part of the first and second printed portions using radiation of a frequency in said second range; displaying an image representing radiation in said second range reflected from said substrate; and comparing said image with said second shape of said third printed portion.
Preferred embodiments of the invention will now be described, by way of example only and not in any limitative sense, with reference to the accompanying drawings in which:-Figure 1 illustrates a cheque commonly used by banks; Figure 2 illustrates a cheque on which information has been hidden in accordance with the present invention; Figure 3 illustrates a range of shapes in which the second printed portion used to obscure the first printed portion, may be printed; and Figure 4 illustrates an imaging device for revealing hidden information printed on a substrate in accordance with the present invention.
Figure 2 illustrates a substrate 100, and in particular a cheque, on which a first printed portion 102 has been printed uing a first ink in the shape of a sequence of digits. The first ink is a standard ink, coloured for example black, and absorbs radiation in a range of visible frequencies and in a non-visible range of frequencies e.g. infra red. Figure 2 also illustrates a second printed portion 104 which has been printed on the cheque 100 over the sequence of digits of the first printed portion 102 using a second ink, such that the sequence of digits is obscured from view. The second ink is also coloured for example black, and absorbs visible radiation but unlike the first ink, transmits radiation in at least a part of the non-visible range of frequencies in which the first ink absorbs. The second ink will be familiar to persons skilled in the art as having been used on bank notes.
The second printed portion may be printed in any shape provided that it obscures at least part of and preferably all of the first printed portion. A possible selection of shapes which may be used is illustrated in figure 3. The second printed portion would also be part of the branding or some other printed feature of a document. Figure 2 further illustrates a third printed portion 106 printed on the cheque having a shape corresponding to the sequence of digits of the first printed portion 102. The third printed portion is not obscured by ink of the second printed portion 104 and is printed in a third ink. The third ink can be any form of ink, including being the same as the first and second inks or could be an ink that can only be viewed under certain light such as UV light.
To view the sequence of digits of the first printed portion 102 an imaging device 108, illustrated in figure 4 is utilised. The imaging device 108 comprises a variable frequency radiation source 110 for illuminating a cheque on which information has been hidden in accordance with an aspect of the present invention. In order to reveal the hidden sequence of digits of the first printed portion, radiation with a frequency in the non-visible frequency range in which the first ink absorbs but the second ink does not is to be directed onto the second printed portion 104 covering the sequence of digits of the firs-t printed portion 102. The radiation reflected from the cheque 100 is then captured by a camera 112 and imaged by processor 114, wherein the image is displayed on a screen 116. As the ink in which the sequence of digits of the first printed portion 102 are printed absorbs such radiation, the image will display such digits.
The cheque 100 is then validated by comparing the sequence of digits of the third printed portion 106 with the sequence of digits of the first printed portion 102.
It will be appreciated by persons skilled in the art that the above embodiments have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departure from the scope of the invention as defined by the appended claims. For example a sequence of characters or a sequence of characters and digits may also be used to validate a cheque. A shape as opposed to a sequence of characters and/or digits may also be used to validate a cheque. The validation technique outlined in this application may be applied to any document e.g. a purchase order or official letter, and is not exclusively related to the validation of cheques. The first printed portion may also be printed on top of the second printed portion and vice versa. The second printed portion may be printed in the shape of a regular polygon or even a straight line of no particular thickness. The camera of the imaging device may also provide magnification capability to provide a magnified image on the screen of a cheque. Also the inks in which the first and second printed portions are printed need not necessarily be the same colour.

Claims (13)

  1. Claims 1. A printed material comprising:-a substrate; at least one first printed portion printed on said substrate using a first ink, said first printed portion containing at least one first shape; at least one second printed portion printed on said substrate using a second ink at least partially obscuring said first printed portion; and at least one third printed portion printed on said substrate and containing at least one second shape corresponding to at least one said first shape; wherein at least one of said first and second ink absorbs visible radiation in a first range of frequencies and absorbs non-visible radiation in *a second range of frequencies and the other of said first and second ink absorbs visible radiation in a range of frequencies substantially corresponding to said first range and substantially does not absorb radiation in said second range.
  2. 2. A printed material according to claim 1, wherein at least one said shape is a digit.
  3. 3. A printed material according to claim 1, wherein at least one said shape is a character.
  4. 4. A printed material according to any of claims 1 to 3, wherein said substrate is a cheque.
  5. 5. A printed material according to any of claims 1 to 3, wherein said substrate is a document.
  6. 6. A printed material as herein before described with reference to the accompanying drawings in figures 2 and 3.
  7. 7. A method of printing on a substrate, comprising the steps:-printing at least one first printed portion printed on a substrate using a first ink, said first printed portion containing at least one first shape; printing at least one second printed portion printed on said substrate using a second ink at least partially obscuring said first printed portion; and printing at least one third printed portion printed on said substrate and the third printed portion containing at least one second shape corresponding to at least one said first shape; wherein at least one of said first and second ink absorbs visible radiation in a first range of frequencies and absorbs non-visible radiation in a second range of frequencies and the other of said first and second ink absorbs visible radiation in a range of frequencies substantially corresponding to said first range and substantially does not absorb radiation in said second range.
  8. 8. The method of claim 7, wherein said second printed portion is printed on said substrate before said first printed portion.
  9. 9. The method of claim 7 or 8, wherein at least one shape is a digit.
  10. 10. The method of claim 7 or 8, wherein at least one said shape is a character.
  11. 11. The method according to any of claims 7 to 10, wherein said substrate is a cheque.
  12. 12. The method according to any of claims 7 to 10, wherein said substrate is a document.
  13. 13. A method of validating the authenticity of a printed material, comprising the steps of:-receiving a printed material according any one of claims 1 to 5, illuminating at least part of the first and second printed portions using radiation of a frequency in said second range; displaying an image representing radiation in said second range reflected from said substrate; and comparing said image with said second shape of said third printed portion.
GB0810551.2A 2008-06-10 2008-06-10 Hiding information on a document for use in validation Active GB2460716B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0810551.2A GB2460716B (en) 2008-06-10 2008-06-10 Hiding information on a document for use in validation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0810551.2A GB2460716B (en) 2008-06-10 2008-06-10 Hiding information on a document for use in validation

Publications (3)

Publication Number Publication Date
GB0810551D0 GB0810551D0 (en) 2008-07-16
GB2460716A true GB2460716A (en) 2009-12-16
GB2460716B GB2460716B (en) 2012-10-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219525A (en) * 1988-06-08 1989-12-13 Bdk Ind Prod Ltd Adhesive packaging tape
WO1995013597A2 (en) * 1993-11-12 1995-05-18 Thomas De La Rue Limited Preventing unauthorized copying of documents
EP1267311A1 (en) * 2001-06-12 2002-12-18 Kam Fu Wong Barcoded banknote and associated apparatus for processing such a banknote
US20030183695A1 (en) * 2001-12-18 2003-10-02 Brian Labrec Multiple image security features for identification documents and methods of making same
US20060131425A1 (en) * 2003-06-12 2006-06-22 Giesecke & Devrient Gmbh Value document comprising a machine-readable authenticity mark
US20080119258A1 (en) * 2006-11-21 2008-05-22 La Francaise Des Jeux Gaming ticket comprising validation data, security method and optical reader for such a gaming ticket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219525A (en) * 1988-06-08 1989-12-13 Bdk Ind Prod Ltd Adhesive packaging tape
WO1995013597A2 (en) * 1993-11-12 1995-05-18 Thomas De La Rue Limited Preventing unauthorized copying of documents
EP1267311A1 (en) * 2001-06-12 2002-12-18 Kam Fu Wong Barcoded banknote and associated apparatus for processing such a banknote
US20030183695A1 (en) * 2001-12-18 2003-10-02 Brian Labrec Multiple image security features for identification documents and methods of making same
US20060131425A1 (en) * 2003-06-12 2006-06-22 Giesecke & Devrient Gmbh Value document comprising a machine-readable authenticity mark
US20080119258A1 (en) * 2006-11-21 2008-05-22 La Francaise Des Jeux Gaming ticket comprising validation data, security method and optical reader for such a gaming ticket

Also Published As

Publication number Publication date
GB0810551D0 (en) 2008-07-16
GB2460716B (en) 2012-10-10

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