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EP1349987B1 - Papier de securite - Google Patents

Papier de securite Download PDF

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Publication number
EP1349987B1
EP1349987B1 EP01995763A EP01995763A EP1349987B1 EP 1349987 B1 EP1349987 B1 EP 1349987B1 EP 01995763 A EP01995763 A EP 01995763A EP 01995763 A EP01995763 A EP 01995763A EP 1349987 B1 EP1349987 B1 EP 1349987B1
Authority
EP
European Patent Office
Prior art keywords
paper
fact
adhesive
layer
barrier
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
EP01995763A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1349987A1 (fr
Inventor
Sandrine Rancien
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.)
ArjoWiggins Security SAS
Original Assignee
ArjoWiggins Security SAS
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 ArjoWiggins Security SAS filed Critical ArjoWiggins Security SAS
Publication of EP1349987A1 publication Critical patent/EP1349987A1/fr
Application granted granted Critical
Publication of EP1349987B1 publication Critical patent/EP1349987B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H21/00Non-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
    • D21H21/14Non-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
    • D21H21/40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/46Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/916Fraud or tamper detecting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24934Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer

Definitions

  • the present application relates to security papers and in particular those comprising at least one zone that reacts with apolar solvents.
  • the reagents used to react with solvents in general are composed, for example, of solid particles dispersed in the fibrous mass of the security paper and / or in the surfacing layers, particles which have the particularity of being insoluble in water and soluble in certain solvents likely to be used by the falsifiers, the passage in solution of these particles in the liquid causing a coloration thereof sufficiently large to be easily detectable with the naked eye, under visible light or ultraviolet.
  • the falsifiers are then led to attempt to take off this film and then falsify the variable mentions using solvents, including apolar solvents.
  • the security paper is coated with glue and then affixed respectively on the page of a passport reserved for the visa or on any other type of carrier to be traced.
  • the falsifiers are then led to attempt to take off with solvents, including apolar solvents, these visas or labels to use them for another purpose.
  • apolar solvents used are, for example, chosen from the following list: White spirit, gasoline A, petroleum, turpentine, universal synthetic diluent, scarlet water®, Zipo® gasoline, trichlorethylene, heptane, hexane, Un Du®.
  • the present invention is intended in particular to make the security documents more difficult to falsify.
  • a new security paper comprising at least one zone that reacts with apolar solvents
  • this security paper being characterized by the fact that it comprises a barrier impermeable to non-polar solvents between a first outer face of the security paper and the zone reacts to apolar solvents.
  • the zone reacting with apolar solvents is separated by the barrier of the first outer face of the paper.
  • the apolar solvent-reactive zone is sufficiently isolated from the first outer face to allow the presence in contact therewith of an adhesive which may contain apolar products or traces of apolar residual products.
  • the portion of the security paper containing the reagents capable of solubilizing in apolar solvents consisting for example of the fibrous mass and / or of a layer on the surface of the second outside face.
  • the new security paper according to the invention thus makes it possible to offer protection vis-à-vis the apolar solvents used by the falsifiers in their falsification attempts.
  • apolar solvent reactants are introduced preferentially into a surface layer in the vicinity of the second outer face of the paper, opposite to the first, rather than in the fibrous mass, that is to say that the zone that reacts with apolar solvents is preferably closer to the second outer face of the paper than the first outer face of the paper.
  • the other chemical reagents that may be present in the security paper, in the fibrous mass and / or in a surfacing layer are the following: Reagents for the bases, in particular for ammonia or sodium hydroxide solution, acid-reactive agents, in particular with hydrochloric acid, oxidizing reagents, in particular with sodium hypochlorite or with hydrogen peroxide, polar solvents reagents, especially with ethyl alcohol, denatured or not, these reagents being able to be found independently in the mass fibrous or in the surfacing layers (barrier or not) of the paper according to the reagents.
  • one of the faces of the security paper has a mark visible to the naked eye, to distinguish it from the other side, for example a watermark.
  • the barrier is situated substantially in the vicinity of the first outer face, which makes it possible in particular to deposit the impermeable material (s) for non-polar solvents constituting this barrier during the surface treatment of the fibrous mass of the security paper, by surfacing or sleeping online or offline.
  • the surface treatment means used are constituted for example by a gluing press or a coater, in particular by gravure printing.
  • barrier located in the vicinity of the first outer face it is meant that the barrier is closer to the first outer face than the second.
  • surfacing layers between the fibrous mass and the barrier or between the latter and the first outer face, there may be one or more surfacing layers and / or print writing.
  • polyvinyl alcohol may be mentioned as polymer, in particular a very film-forming PVA with a very high degree of hydrolysis of at least greater than or equal to 98%, for example, and at a high level. molecular weight, the PVA used possibly being carboxylated.
  • polymers in particular in the form of a stabilized dispersion (synthetic latex), in particular polymers based on acrylic, nitrile, polyvinyl acetate, styrene-butadiene, polyvinyl chloride or still other materials, especially a starch or a fluororesin, and mixtures thereof.
  • synthetic latex polymers based on acrylic, nitrile, polyvinyl acetate, styrene-butadiene, polyvinyl chloride or still other materials, especially a starch or a fluororesin, and mixtures thereof.
  • the barrier may be constituted by a surfacing layer, as indicated above.
  • the first outer face of the paper may be in contact with an adhesive, the security paper obtained then constituting for example a visa or a security label, to be stuck on one of the pages of a passport or on a carrier to be traced.
  • the invention also relates to an assembly comprising a security paper as defined above and an adhesive structure bonded to the first outer face of said paper.
  • Such an adhesive structure may be constituted by a transparent film coated with adhesive, as explained above.
  • the adhesive structure may also be constituted by a paper or a label made using a security paper according to the invention, that is to say having at least one zone reactive to apolar solvents and a barrier impermeable to solvents apolar, in the vicinity of which is the adhesive. There may be surfacing and / or writing layers between the paper and the adhesive.
  • this surfacing layer is formulated in such a way that the adhesion force between the adhesive structure and the surfacing layer is greater than the adhesion force between the surfacing layer and the fibrous mass of the security paper, so as to cause during delamination attempts of the adhesive structure a delamination of the underlying fibrous mass.
  • the subject of the invention is also a process for manufacturing a security paper, in which a differential treatment of a fibrous papermaking mass is carried out so as to form on one side only of this fibrous mass a barrier to apolar solvents.
  • FIG. 1 a security paper 1 comprising a fibrous paper mass 2, and on both sides thereof, two surfacing layers 3 and 4.
  • FIG. figure 2 an adhesive structure consisting of an adhesive security paper 1 ', which differs from the paper 1 shown in FIG. figure 1 in that it comprises an adhesive layer 9 on the layer 4.
  • the assembly 1 "represented in figure 3 is formed by bonding the adhesive structure 1 'shown in FIG. figure 2 on the security paper 1 shown in the figure 1 .
  • the surfacing layer 4 forms, in accordance with a aspect of the invention, a barrier impermeable to nonpolar solvents and the fibrous mass 2 and / or the surfacing layer 3 constitute a zone reacting with apolar solvents used to falsify, that is to say, in the example described, changing color in the presence of these.
  • the outer surface of the layer 4 constitutes the first outer face 10 within the meaning of the invention, and the outer surface of the layer 3 constitutes the second outer face 11.
  • Fibrous mass 2, layers 3 or 4 may contain chemical reagents for products other than apolar solvents: base reagents, in particular with ammonia or sodium hydroxide solution, acid-reactive agents, in particular with hydrochloric acid, oxidizing reagents, especially sodium hypochlorite or hydrogen peroxide, polar solvents reagents, especially ethyl alcohol, denatured or not.
  • base reagents in particular with ammonia or sodium hydroxide solution
  • acid-reactive agents in particular with hydrochloric acid
  • oxidizing reagents especially sodium hypochlorite or hydrogen peroxide
  • polar solvents reagents especially ethyl alcohol, denatured or not.
  • the layer 4 comprises one or more materials making it possible to limit sufficiently the migration of apolar products from the adhesive mass 7 or 9 via the outer face 10 to the fibrous papermaking mass 2 or the surfacing layer 3 to obtain the desired result, such materials being for example chosen from film-forming PVA with a very high degree of hydrolysis, equal to 98% for example, optionally carboxylated, latices, in particular of acrylic base, or fluorinated resins, and mixtures thereof, this list being in no way limiting .
  • a sample of security paper has been produced by means of a differential treatment consisting in applying to the fibrous papermaking material, during the gluing treatment step, layers surfacing having different compositions for each face.
  • Depositing solutions of the bath is effected at a rate of 40 g / m 2 wet in the example described.
  • a comparison sample is also produced in which the barrier layer 4 is replaced by a layer of composition identical to that of layer 3 but without the apolar solvent reagent.
  • An aging test is carried out at 80 ° C. for 24 hours, after having bonded to the comparison sample and to the sample obtained according to the invention, on the side of the layer 4 for the latter, a protective film coated with adhesive.
  • the comparison sample shows the appearance of colored spots while the other sample remained intact.
  • the example shown in figure 2 corresponds for example to a visa-type adhesive structure to be glued by the adhesive mass 9 on a page of a passport for example.
  • this structure consists of a security paper 1 such as that represented in FIG. figure 1
  • a security paper 1 such as that represented in FIG. figure 1
  • the adhesive mass 9 is contained between two barrier layers 4, and wherein the fibrous masses 2 or layers 3 capable of reacting with non-polar solvents are outside.
  • the apolar solvent reactants will be introduced into the layers 3 to promote the triggering of the color reactions during attempts to remove the adhesive structure by surface etching or during attempts to tamper with the variable indications present on the face 10 of the adhesive structure 1 '.
  • barrier materials can be used with respect to apolar solvents than those which have been described.
  • the fibrous papermaking mass may comprise cellulose fibers or other fibers, especially synthetic fibers.

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)
  • Color Printing (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
EP01995763A 2000-12-22 2001-12-21 Papier de securite Expired - Lifetime EP1349987B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0016933 2000-12-22
FR0016933A FR2818672B1 (fr) 2000-12-22 2000-12-22 Papier de securite comportant une zone reagissant aux solvants apolaires
PCT/FR2001/004163 WO2002052104A1 (fr) 2000-12-22 2001-12-21 Papier de securite

Publications (2)

Publication Number Publication Date
EP1349987A1 EP1349987A1 (fr) 2003-10-08
EP1349987B1 true EP1349987B1 (fr) 2010-02-03

Family

ID=8858119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01995763A Expired - Lifetime EP1349987B1 (fr) 2000-12-22 2001-12-21 Papier de securite

Country Status (10)

Country Link
US (1) US7041364B2 (es)
EP (1) EP1349987B1 (es)
AR (1) AR032038A1 (es)
AT (1) ATE457043T1 (es)
BR (1) BR0116441B1 (es)
CA (1) CA2432571C (es)
DE (1) DE60141251D1 (es)
ES (1) ES2339845T3 (es)
FR (1) FR2818672B1 (es)
WO (1) WO2002052104A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2819831A1 (fr) * 2001-01-22 2002-07-26 Arjo Wiggins Sa Papier comportant des corps porteurs d'au moins un marqueur biochimique
DE10231435A1 (de) * 2002-07-11 2004-02-12 Sension, Biologische Detektions- Und Schnelltestsysteme Gmbh Nachweisverfahren zur Prüfung der Originalität eines Objekts
FR2897078B1 (fr) * 2006-02-09 2011-08-19 Arjowiggins Materiau en feuille comportant au moins un filigrane avec une nuance coloree.
DE102007005884B4 (de) * 2007-02-07 2022-02-03 Leonhard Kurz Stiftung & Co. Kg Sicherheitsdokument
WO2009103021A1 (en) * 2008-02-14 2009-08-20 Documotion Research, Inc. Tamper evident materials for securely carrying information
FR2970716B1 (fr) 2011-01-25 2013-09-06 Honnorat Rech S & Services Papier de securite infalsifiable aux solvants
FR2980139B1 (fr) * 2011-09-21 2013-09-27 Hologram Ind Document securise et methode de fabrication dudit document securise

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1312793C (en) * 1985-10-04 1993-01-19 Peter Sinclair Remoistenable adhesives
WO1998041688A1 (en) * 1997-03-14 1998-09-24 Georgia-Pacific Corporation, Inc. Security paper

Also Published As

Publication number Publication date
FR2818672B1 (fr) 2003-02-21
BR0116441B1 (pt) 2011-11-16
ES2339845T3 (es) 2010-05-26
US20040096635A1 (en) 2004-05-20
FR2818672A1 (fr) 2002-06-28
CA2432571A1 (fr) 2002-07-04
EP1349987A1 (fr) 2003-10-08
AR032038A1 (es) 2003-10-22
DE60141251D1 (de) 2010-03-25
ATE457043T1 (de) 2010-02-15
US7041364B2 (en) 2006-05-09
BR0116441A (pt) 2003-12-23
WO2002052104A1 (fr) 2002-07-04
CA2432571C (fr) 2009-11-10

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