EP1204795B1 - Papier d'enregistrement avec une combinaison de plusieurs caracteristiques de securite - Google Patents

Papier d'enregistrement avec une combinaison de plusieurs caracteristiques de securite Download PDF

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Publication number
EP1204795B1
EP1204795B1 EP00953098A EP00953098A EP1204795B1 EP 1204795 B1 EP1204795 B1 EP 1204795B1 EP 00953098 A EP00953098 A EP 00953098A EP 00953098 A EP00953098 A EP 00953098A EP 1204795 B1 EP1204795 B1 EP 1204795B1
Authority
EP
European Patent Office
Prior art keywords
recording paper
dye
paper according
recording
layer
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
EP00953098A
Other languages
German (de)
English (en)
Other versions
EP1204795A1 (fr
Inventor
Volker Hiller
Karsten SÜSSENBACH
Gerhard Stork
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.)
Mitsubishi HiTech Paper Flensburg GmbH
Stora Spezialpapiere GmbH
Original Assignee
Mitsubishi HiTech Paper Flensburg GmbH
Stora Spezialpapiere GmbH
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 Mitsubishi HiTech Paper Flensburg GmbH, Stora Spezialpapiere GmbH filed Critical Mitsubishi HiTech Paper Flensburg GmbH
Publication of EP1204795A1 publication Critical patent/EP1204795A1/fr
Application granted granted Critical
Publication of EP1204795B1 publication Critical patent/EP1204795B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
    • 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
    • B41M3/10—Watermarks
    • 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
    • B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes
    • 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
    • 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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation

Definitions

  • the invention relates to a recording paper with a combination of several Security features. Furthermore, the invention describes in terms of a security feature a method for authenticating a inventive Recording paper.
  • Recording papers determine the daily life in the society and within the professional life. For use, for example, as transfer forms or checks, diploma, certificates, pharmaceutical leaflets Products, lottery tickets, stamps or generally as printouts or copies, their justified production by the use of for this Purpose of certified and characteristic paper in the past already different solutions for recording papers proposed with security features. In addition to the authenticity check exists in a large number of such papers, too, the interest in them before retrospective ones To protect counterfeits.
  • DE 195 01 289 A 1 provides for a heat-sensitive recording paper, the use of colored and under ultraviolet irradiation fluorescent fibers, which are added to the paper pulp before sheet formation in small quantities before, but this is associated with significant production technical disadvantages prolonged cleaning downtime on the paper machine , At the same time, the scrap of paper produced in this way can only be recycled to a very limited extent due to the eye-catching synthetic fibers.
  • DE 25 18 871 A 1 is disclosed for coated papers as a security feature that two gleichgeartete substances containing at least one color former as an azo compound and at least one dye or pigment are applied in or on the carrier paper.
  • a reagent can be applied to the paper for authenticity testing by means of a stamp, felt-tip pen or roller device, the substance reacting in or on the carrier paper together with the reagent in the form of color formation.
  • the security feature thus described can be combined with a watermark as another security element.
  • EP 0 072 481 B1 provides for a forgery-proof paper an admixture of 2- (4'-amino-3'-sulfophenyl) -6-methylbenzothiazole-7-sulfonic acid or salts thereof, wherein a fastness test with dilute potassium permanganate solution is provided is.
  • DE 27 47 349 C2 discloses for forgery-proof papers, which are to be used in particular as to be filled out by hand payment instructions, the use of pyrensulfonic acids or their metal salts in the pulp or on the paper surface.
  • DE 298 15 121 U 1 for the coating of inkjet printing papers discloses a coating color whose pigment mixture of precipitated silica and at least one excitation radiation from the ultraviolet or visible spectral absorption absorber pigment.
  • a heat-sensitive recording material which has, as a first security feature, a latent image printed on its rear side, produced by means of a security ink containing a fluorescent reagent.
  • the security ink contains a water-repellent agent.
  • the fluorescent ink containing the fluorescent reagent used as the pigment or dye and the water-repellent-containing security ink is contained or dispersed in an aqueous vehicle which may contain a binder other than these components.
  • a disadvantage of this proposal is the fact that the arrangement of Preprints by means of the water-repellent character of the security ink is made difficult by the usual printing process.
  • a security paper for the production of documents is known in which for producing a color marking a color developer is added as the one component of a two-component system the pulp before the web formation or the paper (useful on both sides) the color developer is coated or impregnated.
  • a color former is contacted with the developer as the other component, a color change is produced confirming the authenticity of the document.
  • the paper may additionally be provided with watermarks or with unspecified fluorescent inserts.
  • FR-A-2 539 533 relates to a method for identifying pressure-sensitive and heat-sensitive security papers.
  • a suitable titration dye for example based on pyrensulfone or a dye mixture is added to the paper pulp. If the surface of a paper sheet containing such a dye is contacted with a felt-tip pen or ball-point pen containing an organic solvent or solvent mixture, in particular a mixture of benzyl alcohol and diethanolamine, a color visible with the naked eye is produced.
  • the mixture of benzyl alcohol and diethanolamine is also suitable for the development of encapsulated color reaction components in self-copying recording papers or thermosensitive recording papers.
  • the object of the present invention is for recording papers to create a combination of several security features, which on the one hand the implementation of simple authenticity checks is realized and with what On the other hand, effective protection against counterfeiting attempts has been created which, as it were, is used to carry out cross checks to ascertain the authenticity can be used. At the same time, they are to be made available Recording papers on the front and back easily with so-called preprints can be provided.
  • doping and type of dyes (A) as a security feature (1) is both an authenticity check, as it is defined in more detail in the subclaims and among which an authenticity check the recording paper according to the invention is to be understood, as well as enables the detection of counterfeits attempted on recordings.
  • Dye (A) can be an azine or Anthrachinonfarbstoff be used.
  • An irregular pattern formation with regard to the security feature (2) applied dye (B) preferably corresponds to a fine-grained Structure, which, in other words, can be called mottling, while the regular pattern is preferably a striped structure equivalent.
  • the side loaded with the dye (B) sees which is opposite to the page intended for recording the recording, viewed with the naked eye slightly colored.
  • a suitable coating weight is in the range of a basis weight of 0.01 to 40 mg / m 2, in particular in the range of 0.05 to 7.5 mg / m 2. It is further preferred that the pattern formed from the dye (B) is fluorescent under UV irradiation. Particularly suitable as the dye (B) has proved such a pyrensulfonate-based.
  • pulp for the feature (C) a one-year-old plant Pulp or a softwood pulp are used, preferably unground is.
  • the recording paper according to the invention preferably comprises 0.005 to 3% by weight, in particular 0.05 to 0.5% by weight, of its pulp content fluorescent pulp.
  • Suitable spacers are inhibited starch and / or cellulose powder.
  • pressure as a reaction of the color former with the Acceptors produced in the SC layer is preferably in one Contrast to the color of the SC layer.
  • the combinations of security features according to the invention are preferably used for an inkjet printing paper, in particular for a Ink jet printing paper comprising a receiving layer for ink jet printing having.
  • Another preferred embodiment provides the inventive Combinations of security features in a heat-sensitive Recording layer having recording layer.
  • Most notably the introduction of a pigment-containing layer between is preferred Paper and heat-sensitive recording layer.
  • the heat-sensitive recording layer has a Protective layer is applied.
  • the embodiments specified in the subclaims 8 to 10 - Has proven to be a method in which the surface the side opposite the page intended for recording with a mixture of a primary alcohol, a secondary Alcohol and an acid is wetted.
  • the wetting is preferably carried out using a test pen, sponge or stamp.
  • security feature (3) is in the sense the invention produced on the paper machine in the wet paper web genuine Watermarks, embossed into the moist paper web so-called molettes or printed marks, so-called pseudo watermarks.
  • Azinfarbstoffen in the context of the present invention are characterized by the Pyrazine ring (paradiazine ring) with attached aromatic nuclei Understand dyes.
  • preprints are in the description of the present invention, for example by means of flexo or offset printing, in particular dry or waterless offset printing, applied imprints, such as form captions to understand, in which at the later intended use the filling of the form fields, for example by means of inkjet printers or thermal printer.
  • inkjet pressure receiving layers can be used: DE 32 37 381 A1; EP 0 524 635 A1; EP 0 602 230 A1; EP 0 602 400 A1.
  • a second pulper is an unground, bleached softwood pulp with the under UV irradiation yellowish fluorescence causing styryl dye Pergasol F-6G® (Ciba Specialty Chemicals GmbH) for the production of a treated second mixture (b).
  • a consistency of 2% is set.
  • a paper web (II) is made using the same mixture (s) having a basis weight of 87 g / m 2 while using a dandy maker producing a watermark.
  • This paper web (II) has the security features (1), (3) and (4).
  • a paper web (III) having 87 g / m 2 of area-related mass and having the security feature (1) is produced on a four-wire paper machine.
  • paper web (V) having 87 g / m 2 of area-related mass is produced on a four-wire paper machine.
  • the paper webs (I) to (VI) are provided on one side with a starch preparation of 0.5 g / m 2 .
  • the paper webs (I) to (V) are first applied on the side opposite to the starch-provided side with an intermediate layer containing an oil-absorbing pigment and then provided with a heat-sensitive recording layer.
  • the heat-sensitive recording papers are provided with an aqueous solution of a pyrensulfonate-based dye so as to form an irregular pattern in the manner of a fine-grained structure extending over the entire surface of this paper web side.
  • the heat-sensitive recording papers thus obtained from the paper webs (I) to (IV) are given as Examples 1 to 4 with their security features in Table 1.
  • the paper web (V) provided with a heat-sensitive recording layer is provided in places with an SC layer having a coating weight of 5 g / m 2 and then over the entire surface with the dye solution specified in Examples 1-4.
  • This heat-sensitive recording paper given in Example 5 contains the security features shown in Table 1.
  • the recording papers produced from the paper webs (III) and (IV) for the ink jet printing is given as in Example 5, lines 1-3, at the back in places with a SC coating. applied.
  • the security features The recording papers thus prepared are shown in Table 2.
  • a web of the recording paper made of paper web (IV) becomes as indicated in Example 5, back in both places with an SC layer as well as additionally over the entire area with a dye solution according to Examples 1-5 acted upon.
  • the recording paper contains the in Table 2 security features.
  • a web of the recording paper made of paper web (VI) becomes as indicated in Example 5, back in both places with an SC layer as well as additionally over the entire area with a dye solution according to Examples 1-5 acted upon.
  • the recording paper contains the in Table 2 security features.

Landscapes

  • Paper (AREA)
  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Facsimile Transmission Control (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Claims (25)

  1. Papier d'enregistrement avec une combinaison de plusieurs attributs de sécurité, caractérisé par les combinaisons suivantes des attributs de sécurité (1), (2), (3), (4) et (5) : a) 1+2 1+5 2+5 b) 1+2+4 1+2+5 1+4+5 2+4+5 c) 1+2+4+5 d) 1+2+3 1+3+5 2+3+5 e) 1+2+3+4 1+2+3+5 1+3+4+5 2+3+4+5 f) 1+2+3+4+5
    et les attributs de sécurité étant :
    (1) un colorant (A) insoluble dans l'eau, intégré dans le papier, invisible à l'oeil nu, lequel, en cas de mouillage de la surface avec un solvant organique ou un acide, provoque une coloration voyante au moins sur la face qui est opposée à la face destinée à recevoir l'enregistrement,
    (2) un colorant (B) dans le domaine de pH acide ou neutre seulement faiblement visible à la lumière du jour, lequel est appliqué selon un dessin régulier ou irrégulier sur la totalité de la surface de la face opposée à la face destinée à recevoir l'enregistrement, et lequel, en contact avec une substance alcaline, engendre une réaction colorante, qui génère une couleur stable fluorescente à la lumière du jour,
    (3) un filigrane intégré dans le papier ou imprimé sur celui-ci,
    (4) une cellulose intégrée dans le papier, colorée avec un colorant (C) et/ou traitée avec un agent d'azurage optique, laquelle est fluorescente sous un rayonnement UV,
    (5) une couche autonome (selfcontained), qui est appliquée sur la face opposée à la face destinée à recevoir l'enregistrement et qui contient des accepteurs et des microcapsules avec des agents chromogènes encapsulés dans celles-ci, les agents chromogènes générant une réaction colorante avec les accepteurs sous l'effet de l'application d'une pression.
  2. Papier d'enregistrement selon la revendication 1, caractérisé en ce que le papier d'enregistrement, au moins sur sa face destinée à recevoir l'enregistrement, comporte une couche de réception pour le procédé d'impression à jet d'encre ou, au moins sur sa face destinée à recevoir l'enregistrement, comporte une couche thermosensible.
  3. Papier d'enregistrement selon la revendication 1 ou 2, caractérisé en ce que le dessin formé par le colorant (B) est fluorescent sous un rayonnement UV.
  4. Papier d'enregistrement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le colorant (B) est appliqué selon un grammage dans le domaine de 0,01 à 40 mg/m2.
  5. Papier d'enregistrement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le colorant (B) est appliqué selon un grammage dans le domaine de 0,05 à 7,5 mg/m2.
  6. Papier d'enregistrement selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le colorant (B) est soluble à l'eau.
  7. Papier d'enregistrement selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le colorant (B) est appliqué sans liant.
  8. Papier d'enregistrement selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le colorant (B) est un colorant à base de pyrène sulfonate.
  9. Papier d'enregistrement selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le colorant (A) est incorporé dans le papier dans une quantité de 0,005 à 0,1 % en poids, par rapport à la teneur en matière fibreuse absolument sèche.
  10. Papier d'enregistrement selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le colorant (A) est incorporé dans le papier dans une quantité de 0,01 à 0,03 % en poids, par rapport à la teneur en matière fibreuse absolument sèche.
  11. Papier d'enregistrement selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le colorant (A) est un colorant azine ou anthraquinone.
  12. Papier d'enregistrement selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la fluorescence de la cellulose colorée avec le colorant (C) est en couleur sous un rayonnement UV.
  13. Papier d'enregistrement selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la cellulose colorée avec le colorant (C) est formée par une plante annuelle.
  14. Papier d'enregistrement selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la cellulose colorée avec le colorant (C) est réalisée dans une pâte de résineux.
  15. selon l'une quelconque des revendications 1 à 14, caractérisé en ce que la cellulose est à l'état non moulu.
  16. Papier d'enregistrement selon l'une quelconque des revendications 1 à 15, caractérisé en ce que le papier contient 0,005 à 3 % en poids de cellulose fluorescente par rapport à sa teneur en cellulose.
  17. Papier d'enregistrement selon l'une quelconque des revendications 1 à 16, caractérisé en ce que le papier contient 0,05 à 0,5 % en poids de cellulose fluorescente par rapport à sa teneur en cellulose.
  18. Papier d'enregistrement selon l'une quelconque des revendications 1 à 17, caractérisé en ce que le grammage de la couche autonome se situe entre 1 et 10 g/m2.
  19. Papier d'enregistrement selon l'une quelconque des revendications 1 à 18, caractérisé en ce que le grammage de la couche autonome se situe entre 4 et 7 g/m2.
  20. Papier d'enregistrement selon l'une quelconque des revendications 1 à 19, caractérisé en ce que la couche autonome n'est appliquée que par zones.
  21. Papier d'enregistrement selon l'une des revendications 1 et 3 à 20, caractérisé en ce que le papier d'enregistrement est un papier destiné à l'impression par jet d'encre.
  22. Papier d'enregistrement selon la revendication 2 ou 20, caractérisé en ce que le papier d'enregistrement comporte une couche intermédiaire contenant des pigments, agencée entre le papier et la couche d'enregistrement thermosensible.
  23. Papier d'enregistrement selon l'une des revendications 2 à 20 ou 22, caractérisé en ce qu'une couche de protection est appliquée sur la couche d'enregistrement thermosensible.
  24. Procédé de contrôle d'authenticité du papier d'enregistrement selon l'une des revendications 1, 2, 9, 10 ou 11, caractérisé en ce que la surface de la face opposée à la face destinée à recevoir l'enregistrement est mouillée par un mélange contenant un alcool primaire, un alcool secondaire et un acide.
  25. Procédé de contrôle d'authenticité du papier d'enregistrement selon la revendication 24, caractérisé en ce que le mouillage est effectué au moyen d'un crayon d'essai, d'une éponge, d'un tampon.
EP00953098A 1999-07-30 2000-07-26 Papier d'enregistrement avec une combinaison de plusieurs caracteristiques de securite Expired - Lifetime EP1204795B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19936030A DE19936030A1 (de) 1999-07-30 1999-07-30 Aufzeichnungspapier mit einer Kombination mehrerer Sicherheitsmerkmale
DE19936030 1999-07-30
PCT/EP2000/007185 WO2001009435A1 (fr) 1999-07-30 2000-07-26 Papier d'enregistrement avec une combinaison de plusieurs caracteristiques de securite

Publications (2)

Publication Number Publication Date
EP1204795A1 EP1204795A1 (fr) 2002-05-15
EP1204795B1 true EP1204795B1 (fr) 2004-12-15

Family

ID=7916709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00953098A Expired - Lifetime EP1204795B1 (fr) 1999-07-30 2000-07-26 Papier d'enregistrement avec une combinaison de plusieurs caracteristiques de securite

Country Status (5)

Country Link
EP (1) EP1204795B1 (fr)
AT (1) ATE284997T1 (fr)
DE (2) DE19936030A1 (fr)
ES (1) ES2234647T3 (fr)
WO (1) WO2001009435A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108982A1 (de) 2001-02-23 2002-09-12 Mitsubishi Hitec Paper Flensbu Wärmeempfindliches Aufzeichnungsmaterial und seine Verwendung
DE10113286A1 (de) 2001-03-16 2002-10-02 Mitsubishi Hitec Paper Flensbu Wärmeempfindlicher Aufzeichnungsbogen und seine Verwendung
US6803344B2 (en) 2001-12-21 2004-10-12 Ncr Corporation Thermal paper with preprinted indicia
DE10231435A1 (de) * 2002-07-11 2004-02-12 Sension, Biologische Detektions- Und Schnelltestsysteme Gmbh Nachweisverfahren zur Prüfung der Originalität eines Objekts
FI116949B (fi) 2004-09-10 2006-04-13 Stora Enso Oyj Menetelmä materiaalin merkitsemiseksi, merkitty materiaali sekä tuotteen aitouden toteaminen
FR2877609B1 (fr) * 2004-11-08 2007-03-09 Arjowiggins Security Soc Par A Structure de securite et article incorporant une telle structure
US8330122B2 (en) 2007-11-30 2012-12-11 Honeywell International Inc Authenticatable mark, systems for preparing and authenticating the mark

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
FR2279570A1 (fr) * 1974-04-26 1976-02-20 Portals Ltd Document dont l'authenticite peut etre verifiee avec surete
FR2365656A1 (fr) * 1976-05-25 1978-04-21 Arjomari Prioux Papier de securite
DE3132146A1 (de) * 1981-08-14 1983-03-03 Bayer Ag, 5090 Leverkusen Faelschungssicheres papier
DE3211102A1 (de) * 1982-03-25 1983-10-06 Schwarz Klaus Billett Automat Verfahren zur echtheitskontrolle von papierabschnitten und verwendung eines hierzu geeigneten farbreaktionssystems
FR2539533B1 (fr) * 1983-01-17 1986-02-28 Aussedat Rey Procede et revelateur pour identifier un papier de securite, un papier copiant ou un papier thermoreactif, ainsi qu'instrument manuel pour leur mise en oeuvre
DE3918765A1 (de) * 1989-06-08 1990-12-13 Drewsen Spezialpapiere Sicherheitspapier zur herstellung von dokumenten
DD300550A5 (de) * 1989-10-16 1992-06-17 Freiberger Zellstoff Papier Fälschungssicheres Papier
US5308824A (en) * 1990-09-28 1994-05-03 Mitsubishi Paper Mills Limited Recording material
DE19501289A1 (de) * 1995-01-18 1996-07-25 Feldmuehle Ag Stora Wärmeempfindliches Aufzeichnungsmaterial und seine Verwendung
DE29617106U1 (de) * 1996-10-01 1997-02-27 Papierfabrik Schoeller & Hoesch GmbH, 76593 Gernsbach Papier
EP0844097B1 (fr) * 1996-11-21 2001-07-18 Ncr International Inc. Papier thermique avec des caractéristiques de sécurité et encre de sécurité à cet effet
JPH11158799A (ja) * 1997-11-28 1999-06-15 Toppan Printing Co Ltd 偽造防止用紙およびそれを用いた印刷物
DE19832900C2 (de) * 1998-07-22 2003-04-24 Security Transfer B V Streichfarbe, Verfahren zu ihrer Herstellung und gestrichenes Papier mit einer aus der Streichfarbe gebildeten Beschichtung sowie seine Verwendung zur Fälschungssicherung von Formularen

Also Published As

Publication number Publication date
ES2234647T3 (es) 2005-07-01
DE19936030A1 (de) 2001-02-08
EP1204795A1 (fr) 2002-05-15
WO2001009435A1 (fr) 2001-02-08
DE50008970D1 (de) 2005-01-20
ATE284997T1 (de) 2005-01-15

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