EP0544611B1 - Dispositif de fabrication de documents de sécurité et des documents de sécurité ainsi obtenu - Google Patents

Dispositif de fabrication de documents de sécurité et des documents de sécurité ainsi obtenu Download PDF

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Publication number
EP0544611B1
EP0544611B1 EP92500157A EP92500157A EP0544611B1 EP 0544611 B1 EP0544611 B1 EP 0544611B1 EP 92500157 A EP92500157 A EP 92500157A EP 92500157 A EP92500157 A EP 92500157A EP 0544611 B1 EP0544611 B1 EP 0544611B1
Authority
EP
European Patent Office
Prior art keywords
planchettes
stirring tank
nozzles
installation
security
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.)
Expired - Lifetime
Application number
EP92500157A
Other languages
German (de)
English (en)
Other versions
EP0544611A1 (fr
Inventor
Carlos Gutierrez
Javier Camacho
Victoriano Perez
José Luis Rodriguez
Liborio De La Vega
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
Application filed by Fabrica Nacional de Moneda y Timbre filed Critical Fabrica Nacional de Moneda y Timbre
Publication of EP0544611A1 publication Critical patent/EP0544611A1/fr
Application granted granted Critical
Publication of EP0544611B1 publication Critical patent/EP0544611B1/fr
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
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/06—Regulating pulp flow
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/44—Watermarking devices

Definitions

  • the present invention relates to an installation that is specifically designed to make security documents, such as paper used as a printing base to obtain banknotes, viz. paper money, and in particular security documents in which the pulp making up the paper will be provided with planchettes, or as appropriate also with fibrils that "personalize” the paper to enhance its security, which planchettes or fibrils are arranged as bands on the paper surface, in the flow direction of the sheet during production.
  • security documents such as paper used as a printing base to obtain banknotes, viz. paper money
  • planchettes or as appropriate also with fibrils that "personalize” the paper to enhance its security, which planchettes or fibrils are arranged as bands on the paper surface, in the flow direction of the sheet during production.
  • the invention also relates to the security documents that result from the practical use of the said installation.
  • planchettes and/or fibrils with special characteristics to the pulp making up the paper, in the latter's production process on the respective forming mould or cloth, in order for both the characteristics of the planchettes or fibrils and their specific apportionment to cause the document to be "personalized" as aforesaid.
  • planchettes or fibrils in bands are allowed to move down towards the papermaking mould through flexible pipes and from a constant-level box, the downward movement of the planchettes being simply due to gravity, a twofold problem arising from a large deficiency in flow control which at times leads to jamming, and to the supply of planchettes being cut off, and at others to a similarly undesirable over-apportionment.
  • the latter may only be changed or regulated by changing the concentration or dispersion of the planchettes in the water of the planchette feed tank.
  • the distribution of the planchettes on the paper is also more homogeneous and the same are better attached to the paper surface, to prevent the planchettes from becoming detached during the subsequent printing process.
  • the installation to make security documents subject of the invention is structured with a stirring tank fed by the process water and a planchette batcher and with any other alternative or supplementary additive that is deemed necessary or expedient, for instance security fibrils, the said stirring tank having a number of outlets to feed respective nozzles, that are arranged in a row and crosswise to the papermaking mould, a special feature however being that each of the ducts linking the said outlets and the relevant nozzles is provided with a drive pump, working with a pressure and flow regulator thereby to allow the flow or batching of planchettes onto the forming mould, to which the pulp fibres making up the paper are simultaneously applied, to be regulated at will, the planchettes being uniformly distributed by the likewise uniform distribution of the nozzles and the perfect flow regulation at each of them.
  • the fact that the system relies on manifold nozzles means that they can each form a band.
  • the stirring tank has a double propeller agitator, viz. two propellers at a different height, their direction of rotation causing the contents of the said tank to move towards its bottom, thereby for the homogenization conditions within the said tank to be optimal.
  • the said drive pumps located at each of the outlets from the stirring tank are membrane or diaphragm pumps to avoid the same from damaging the planchettes or security elements.
  • the nozzles batching the planchettes are positioned just where the sheet of paper begins to for, for the said planchettes to meet with the first fibres reaching the mould, and hence while most of the pulp fibres making up the paper remain under the planchette, some fibres remain above the same, to act as means holding the same and guaranteeing the stability thereof, in particular during the subsequent printing stage.
  • the figure shows that the installation subject hereof is structured with a stirring tank (1) where the level of process water arriving through a duct (2) is kept constant with the assistance of a valve (3) controlled by a float (4) or like system, the process water being provided with the planchettes with the assistance of a planchette batcher (5) and as appropriate with any other kind of adjuncts, such as the classic security fibrils.
  • the stirring tank (1) is internally fitted with an agitator (6) having a double propeller (7), the direction of rotation of the agitator (6) shaft being such that the said double propeller (7) tends to drive the mixture of water and planchettes towards the bottom of the stirring tank (1), thereby to optimally stir the mixture and hence also to optimally homogenize the same.
  • the lower tank area is provided with a number of outlets (8) for the same number of ducts (9) that link the same to respective outlet nozzles (10) arranged in a transverse row on the mould (11) to make up the security paper.
  • Each such duct (9), and in accordance with one of the essential features of the invention, is provided with a pump (12) equipped with a flow and pressure regulator (13) in order for such regulators to afford a perfect control so that batching by the various nozzles (10) along the transverse working line they define is also perfectly homogeneous, or in other words, for the distribution of the planchettes on the surface of the security paper likewise to be perfectly homogeneous.
  • planchettes are incorporated to the paper in the last place, viz. from the nozzles (10) to the papermaking mould (11), when the water flows in which the planchettes are dispersed physically drop due to simple gravity, jointly with the indraught there is from outside at the forming cloth (the effect being the same causing paper to be formed when the pulp fibres are laid on the forming mould or cloth) to be integrated in the newly formed paper mass.
  • a security document and in particular paper with which to prepare security documents is thus made, with the planchettes playing an essential role in providing paper with its security features being better attached to the same inasmuch as instead of being merely adhered to one of the faces thereof, they are held by some of the paper's pulp fibrils.

Landscapes

  • Paper (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (5)

  1. Installation pour réaliser des documents de sécurité, qui comprend une feuille de papier à laquelle sont incorporés des papiers fins rouges ou bleus et, optionnellement, d'autres types d'éléments de sécurité, tels que de petites fibres de sécurité, cette installation comprenant un moule pour la fabrication du papier (11), des moyens pour appliquer des fibres de pâte à papier sur le moule de fabrication de papier et des moyens pour alimenter à ce moule (11) un mélange d'eau et des papiers fins et, optionnellement, d'autres types d'éléments de sécurité, mélange qui se caractérise par le fait que ces moyens pour fournir au moule de fabrication de papier le mélange d'eau et de papiers fins et, optionnellement, d'autres types d'éléments de sécurité, comprennent un réservoir d'agitation (1) qui a deux hélices (7), un agitateur (6), une canalisation (2), destinée à alimenter de l'eau au réservoir d'agitation (1), un réservoir de papiers fins (5) pour les alimenter au réservoir d'agitation (1) et, optionnellement, des réservoirs pour fournir au réservoir d'agitation (1) d'autres types d'éléments de sécurité, comme par exemple de petites fibres de sécurité, le réservoir d'agitation (1) ayant une série de sorties (8), reliées, à travers des conduites respectives (9), au même nombre de buses (10) pour verser le mélange de papiers fins et d'eau sur le moule de fabrication de papier (1), chaque conduite (9) qui relie les sorties du réservoir d'agitation (8) aux buses (10) ayant une pompe (12) qui fonctionne à l'aide d'un régleur de pression et de débit (13), à travers lequel on peut régler individuellement chaque buse (10), ce qui permet de garantir que la fourniture de papiers fins soit parfaitement uniforme dans tout l'ensemble des buses (10).
  2. Installation selon la première revendication, qui se caractérise par le fait que les sorties (8) soient situées dans la partie inférieure du réservoir d'agitation (1) et par le fait que le mouvement de rotation de l'agitateur (6) permette que ses deux hélices (7) tendent à remuer le mélange de papiers fins et d'eau en direction du fond du réservoir d'agitation (1).
  3. Installation selon les première et deuxième revendications, qui se caractérise par le fait que les pompes (12), disposées dans chacune des conduites (9) qui relient les sorties (8) du réservoir d'agitation aux buses (10), soient des pompes à membrane ou à diaphragme.
  4. Installation selon l'une quelconque des revendications précédentes, qui se caractérise par le fait que les buses (10) soient placées, par rapport au moule de fabrication de papier (11), exactement là où la feuille de papier commence à se former, de sorte que les papiers fins se joignent aux premières fibres de pâte avant d'arriver au moule de fabrication de papier (11).
  5. Installation selon l'une quelconque des revendications précédentes, qui se caractérise par le fait que les buses (10) soient des buses de distribution, dont chacune provoque la formation d'une bande.
EP92500157A 1991-11-28 1992-11-27 Dispositif de fabrication de documents de sécurité et des documents de sécurité ainsi obtenu Expired - Lifetime EP0544611B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES09102661A ES2060488B1 (es) 1991-11-28 1991-11-28 Instalacion para la fabricacion de documentos de seguridad y documentos de seguridad obtenidos con dicha instalacion.
ES9102661 1991-11-28

Publications (2)

Publication Number Publication Date
EP0544611A1 EP0544611A1 (fr) 1993-06-02
EP0544611B1 true EP0544611B1 (fr) 1997-05-07

Family

ID=8274327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92500157A Expired - Lifetime EP0544611B1 (fr) 1991-11-28 1992-11-27 Dispositif de fabrication de documents de sécurité et des documents de sécurité ainsi obtenu

Country Status (6)

Country Link
EP (1) EP0544611B1 (fr)
DE (1) DE69219564T2 (fr)
ES (1) ES2060488B1 (fr)
MA (1) MA22718A1 (fr)
MX (1) MX9206877A (fr)
UY (1) UY23512A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2904835B1 (fr) 2006-08-08 2010-03-19 Arjowiggins Elements de securite de format relativement petit comprenant un trou traversant et feuille les comprenant
DE102012212529A1 (de) * 2012-07-18 2014-01-23 Voith Patent Gmbh Sicherheitspapier-Konstantteil
FR2995114B1 (fr) 2012-09-03 2015-09-04 Arjowiggins Security Procede d'authentification a partir de la teneur en matiere bio-sourcee.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229645A1 (fr) * 1986-01-16 1987-07-22 GAO Gesellschaft für Automation und Organisation mbH Procédé de production d'un papier de sécurité à élément de sécurité incorporé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123520A (en) * 1964-03-03 Werlaid sheet
BE658601A (fr) * 1964-01-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229645A1 (fr) * 1986-01-16 1987-07-22 GAO Gesellschaft für Automation und Organisation mbH Procédé de production d'un papier de sécurité à élément de sécurité incorporé

Also Published As

Publication number Publication date
MA22718A1 (fr) 1993-07-01
ES2060488R (fr) 1995-06-01
MX9206877A (es) 1993-12-01
ES2060488B1 (es) 1995-12-16
DE69219564D1 (de) 1997-06-12
EP0544611A1 (fr) 1993-06-02
DE69219564T2 (de) 1997-09-11
UY23512A1 (es) 1992-12-21
ES2060488A2 (es) 1994-11-16

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