EP0613786A1 - A process for obtaining security paper, in particular paper money - Google Patents

A process for obtaining security paper, in particular paper money Download PDF

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Publication number
EP0613786A1
EP0613786A1 EP94500017A EP94500017A EP0613786A1 EP 0613786 A1 EP0613786 A1 EP 0613786A1 EP 94500017 A EP94500017 A EP 94500017A EP 94500017 A EP94500017 A EP 94500017A EP 0613786 A1 EP0613786 A1 EP 0613786A1
Authority
EP
European Patent Office
Prior art keywords
background
paper
screen
security
metallised
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
EP94500017A
Other languages
German (de)
French (fr)
Other versions
EP0613786B2 (en
EP0613786B1 (en
Inventor
Vidal Juan Teodoro
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.)
Fabrica Nacional de Moneda y Timbre
Original Assignee
Fabrica Nacional de Moneda y Timbre
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
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Application filed by Fabrica Nacional de Moneda y Timbre filed Critical Fabrica Nacional de Moneda y Timbre
Publication of EP0613786A1 publication Critical patent/EP0613786A1/en
Application granted granted Critical
Publication of EP0613786B1 publication Critical patent/EP0613786B1/en
Publication of EP0613786B2 publication Critical patent/EP0613786B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • 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
    • 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
    • B42D25/355—Security threads
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting

Definitions

  • the present invention relates to a process for obtaining security paper, such as paper money, which process is aimed at achieving a greater security, i.e. making reproduction more difficult, and at the same time achieving a greater savings in the process for obtaining the same.
  • European patent 0 319 157 A is known to allow the use of a drawing having characters that are sufficiently large to be visible with the naked eye, obtained using a partially metallised strip, thereby essentially maintaining the strong optical variation impact of a continuous metallised strip.
  • This effect is in particular achieved using a waterproof and flexible substrate, with a layer of metal on either side thereof, with a continuous metallic sector lengthwise on one of its sides having non-metallic areas that take up between 10 and 50% of the surface and obtained using a stencil, design or reiterative drawing, at least part of the transverse non-metallic areas being wholly surrounded with metal.
  • the process subject of the present invention is as aforesaid designed on the one hand to improve the reliability of the document, making it more difficult to reproduce the same, and on the other providing greater savings or a cost reduction in its reproduction, without this impairing security.
  • the invention focusses on establishing a discontinuous background metallisation or print, in particular using a screen or the like, in such a way that the background is not so clearly visible and may prove more difficult to reproduce by optical means, which background can further be obtained by means of current printing techniques such as mezzotint, that are far more accessible for the manufacturer than continuous metallisation techniques, which are also much slower.
  • the fluorescence is provided on the screen dots and for the background material to be non-fluorescent, or for the background material be a different colour fluorescent material as regards the screen fluorescence, thereby to achieve a more noticeable effect.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Paper (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

Starting with the classic incorporation to the security paper of security threads or strips (1) carrying a drawing (2) or any mark that can be readily detected with the naked eye, obtained upon a metallised background (3), the process comprises rendering the said metallised background (3) discontinuous, to define a sort of screen or the like, that reduces the intensity of the background and renders the latter more difficult to reproduce by optical means and at the same time allowing the said drawing (2) to be printed using cheaper and more accessible techniques.
Furthermore, the discontinuous character of the metallised background (3) allows fluorescences to be used on either the screen dots (3) upon non-fluorescent background material or upon fluorescent background material having a colour that differs from that of the screen fluorescence.

Description

    OBJECT OF THE INVENTION
  • The present invention relates to a process for obtaining security paper, such as paper money, which process is aimed at achieving a greater security, i.e. making reproduction more difficult, and at the same time achieving a greater savings in the process for obtaining the same.
    • BACKGROUND OF THE INVENTION
  • As is well known, in manufacturing paper money and other kinds of security paper, the use of security threads or strips made of a transparent film having a layer of reflective metal, such as vacuum deposited aluminium on a sheet of polyester, is absolutely widespread, the said strips or threads being embedded in the security paper as such, the latter then undergoing the inevitable printing stage.
  • This yields a security document, for instance a banknote, in which the security threads are barely visible under reflected light and yet stand out immediately and substantially when the document is observed under transmitted light, because of the darkness of the security thread.
  • Though this is a very effective solution, it is possible to enhance the level of security of the paper by providing the security strip or thread with a drawing that the public may readily recognise, whilst retaining the aforesaid optical variation effect. This is feasible by various means, for instance by vacuum depositing aluminium through a mask, selectively eliminating aluminium from a strip comprising a mixture of a plastic base and aluminium using an excimer laser, and so forth.
  • The characters printed on the thread or band are however sometimes too small to be recognised by merely observing the document, and if their size is increased the printed characters shall stand out over-much when viewed under a reflected light, whence they will be easily copied by a counterfeiter.
  • In an attempt at overcoming this problem European patent 0 319 157 A is known to allow the use of a drawing having characters that are sufficiently large to be visible with the naked eye, obtained using a partially metallised strip, thereby essentially maintaining the strong optical variation impact of a continuous metallised strip.
  • This effect is in particular achieved using a waterproof and flexible substrate, with a layer of metal on either side thereof, with a continuous metallic sector lengthwise on one of its sides having non-metallic areas that take up between 10 and 50% of the surface and obtained using a stencil, design or reiterative drawing, at least part of the transverse non-metallic areas being wholly surrounded with metal.
    • DESCRIPTION OF THE INVENTION
  • The process subject of the present invention is as aforesaid designed on the one hand to improve the reliability of the document, making it more difficult to reproduce the same, and on the other providing greater savings or a cost reduction in its reproduction, without this impairing security.
  • More specifically and in order to achieve the above, using the same basic conventional idea of providing the security thread with a drawing that the public may readily recognise, the invention focusses on establishing a discontinuous background metallisation or print, in particular using a screen or the like, in such a way that the background is not so clearly visible and may prove more difficult to reproduce by optical means, which background can further be obtained by means of current printing techniques such as mezzotint, that are far more accessible for the manufacturer than continuous metallisation techniques, which are also much slower.
  • Screen printing further allows an easy incorporation to the paper, in particular to the security thread, of a fluorescent element, which is extremely difficult when the dark portion is continuous, i.e. when the said metallisation is continuous.
  • With the process of the invention it is possible for the fluorescence to be provided on the screen dots and for the background material to be non-fluorescent, or for the background material be a different colour fluorescent material as regards the screen fluorescence, thereby to achieve a more noticeable effect.
    • DESCRIPTION OF THE DRAWINGS
  • In order to provide a fuller description and contribute to the complete understanding of the characteristics of this invention, a single sheet of drawings is attached to the specification which, while purely illustrative and not fully comprehensive, shows in its only figure a security thread in accordance with the process for obtaining security paper, and in particular in accordance with the improvements of such process, that are the object of the present invention.
    • PREFERRED EMBODIMENT OF THE INVENTION
  • The said figure shows that the security thread (1), that can optionally be a strip or a band, is provided with an opaque background for the letters or drawings (2) that shall constitute the distinguishing feature to be recognised by the public, namely a discontinuous metallisation (3), as a screen, which, being of a discontinuous character, causes the opaque background to be less intensively opaque than a continuous metallised background which as aforesaid means that it is on the one hand more difficult to reproduce by optical means and on the other allows the same to be manufactured using printing techniques that are cheaper and hence far more accessible for security paper manufacturers than continuous metallised background techniques, that in addition to being more costly have a slower and hence more expensive process.
  • Now therefore, reproduction is with the process of the invention on the one hand more difficult and on the other much cheaper to carry out, without security being impaired, inasmuch as since a security provided within the actual security paper, i.e. inside the same, such is guaranteed for the said paper normally carries a watermark, fibril and other security elements preventing any implantation inside the same.
  • Furthermore and as aforesaid, the discontinuous screen or metallisation provided for the process of the invention allows a fluorescent element to be easily incorporated to the paper, and moreover in a twofold manner, with the fluorescence on the screen dots and the background material being non-fluorescent, or with the background material being fluorescent and having a colour that is distinct from the screen fluorescence.
  • It is also possible for the printed parts to be separated by areas where the fluorescent element can be enhanced, i.e. in the area where the microprint would be provided on a dark screen background the screen colour would prevail, which could for instance be black, in the areas between the printed letters or drawings there would be no screen and the background would prevail, and the in the said background the fluorescence could be enhanced.

Claims (2)

1.- A process for obtaining security paper, in particular paper money, specifically a process in which security strips or threads (1) are provided within the paper carrying letters or drawings (2) that an observer may readily recognise with the naked eye, defined upon a background that is metallised or printed in a dark colour, characterised in the obtention by any suitable means of a discontinuous metallised background (3) that defines a screen or the like, causing the background that is metallised or printed in a dark colour to lose intensity, being thus more difficult to reproduce by optical means, allowing the obtention to be made by speedier and cheaper printing techniques and moreover allowing the paper to be provided with fluorescent elements through the said security thread.
2.- A process for obtaining security paper, in particular paper money, as in claim 1, characterised in that the fluorescent elements are located on the screen dots upon a non-fluorescent background material, or the said background material can also be fluorescent albeit having a colour that differs from the screen fluorescence.
EP94500017A 1993-02-08 1994-02-04 A process for obtaining security paper, in particular paper money Expired - Lifetime EP0613786B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9300230 1993-02-08
ES09300230A ES2075787B1 (en) 1993-02-08 1993-02-08 IMPROVEMENTS INTRODUCED IN THE PROCEDURES FOR OBTAINING SECURITY PAPER, ESPECIALLY CURRENCY PAPER.

Publications (3)

Publication Number Publication Date
EP0613786A1 true EP0613786A1 (en) 1994-09-07
EP0613786B1 EP0613786B1 (en) 1996-07-03
EP0613786B2 EP0613786B2 (en) 2002-03-06

Family

ID=8280708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94500017A Expired - Lifetime EP0613786B2 (en) 1993-02-08 1994-02-04 A process for obtaining security paper, in particular paper money

Country Status (6)

Country Link
EP (1) EP0613786B2 (en)
CO (1) CO4890001A1 (en)
DE (1) DE69400271T2 (en)
ES (1) ES2075787B1 (en)
MA (1) MA23111A1 (en)
UY (1) UY23730A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999056964A1 (en) * 1998-04-30 1999-11-11 Giesecke & Devrient Gmbh Valuable document with a security element
WO2002101147A1 (en) * 2001-06-08 2002-12-19 Rexor Security thread or transfer film for hot process marking of bank notes, documents or other articles to be made secure
WO2004048120A1 (en) * 2002-11-25 2004-06-10 Fabriano Securities S.R.L. Security element for bank notes, security papers and documents in general
EP1652687A1 (en) * 2004-10-29 2006-05-03 Hueck Folien Ges.m.b.H Security element
EP1876032A1 (en) * 2005-04-06 2008-01-09 Fabrica Nacional De Moneda Y Timbre - Real Casa De La Moneda Security strip and security paper comprising same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004031647D1 (en) 2004-12-23 2011-04-14 Hueck Folien Gmbh Security element with a digital feature and security object or document with the same.
CN103413171B (en) * 2013-07-25 2016-04-06 北京东港安全印刷有限公司 Bank's special anti-counterfeiting printing bill count control device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279880A1 (en) * 1985-12-05 1988-08-31 Crane & Co. Security paper for currency and banknotes
EP0319157A2 (en) * 1987-12-04 1989-06-07 Portals Limited Security paper for bank notes and the like
WO1993001057A1 (en) * 1991-07-10 1993-01-21 Leonhard Kurz Gmbh & Co. Credit or security document comprising an anti-forgery device, and a carrier strip with transferable pattern for producing such a document

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3915638B4 (en) * 1989-05-12 2006-06-08 Giesecke & Devrient Gmbh Security document with embedded security element with visually and machine-checkable tags and security element for a security document
ES2016702A6 (en) * 1989-06-27 1990-11-16 Nacional Moneda Timbre Security paper and its manufacturing process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279880A1 (en) * 1985-12-05 1988-08-31 Crane & Co. Security paper for currency and banknotes
EP0319157A2 (en) * 1987-12-04 1989-06-07 Portals Limited Security paper for bank notes and the like
WO1993001057A1 (en) * 1991-07-10 1993-01-21 Leonhard Kurz Gmbh & Co. Credit or security document comprising an anti-forgery device, and a carrier strip with transferable pattern for producing such a document

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999056964A1 (en) * 1998-04-30 1999-11-11 Giesecke & Devrient Gmbh Valuable document with a security element
US6688221B1 (en) 1998-04-30 2004-02-10 Giesecke & Devrient Gmbh Valuable document with a security element
US6874414B2 (en) 1998-04-30 2005-04-05 Giesecke & Devrient Gmbh Method and apparatus for screen printing
WO2002101147A1 (en) * 2001-06-08 2002-12-19 Rexor Security thread or transfer film for hot process marking of bank notes, documents or other articles to be made secure
WO2004048120A1 (en) * 2002-11-25 2004-06-10 Fabriano Securities S.R.L. Security element for bank notes, security papers and documents in general
EP1652687A1 (en) * 2004-10-29 2006-05-03 Hueck Folien Ges.m.b.H Security element
EP1876032A1 (en) * 2005-04-06 2008-01-09 Fabrica Nacional De Moneda Y Timbre - Real Casa De La Moneda Security strip and security paper comprising same

Also Published As

Publication number Publication date
EP0613786B2 (en) 2002-03-06
CO4890001A1 (en) 2000-02-28
DE69400271D1 (en) 1996-08-08
ES2075787A2 (en) 1995-10-01
DE69400271T2 (en) 1996-10-31
EP0613786B1 (en) 1996-07-03
ES2075787R (en) 1998-01-16
UY23730A1 (en) 1994-06-16
ES2075787B1 (en) 1998-07-16
MA23111A1 (en) 1994-10-01

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