EP0727316A1 - Druckbares Dokument enthaltend Mittel zum Aufdecken von Fälschungen - Google Patents

Druckbares Dokument enthaltend Mittel zum Aufdecken von Fälschungen Download PDF

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Publication number
EP0727316A1
EP0727316A1 EP96400320A EP96400320A EP0727316A1 EP 0727316 A1 EP0727316 A1 EP 0727316A1 EP 96400320 A EP96400320 A EP 96400320A EP 96400320 A EP96400320 A EP 96400320A EP 0727316 A1 EP0727316 A1 EP 0727316A1
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EP
European Patent Office
Prior art keywords
layer
substance
support layer
document
paper
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
EP96400320A
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English (en)
French (fr)
Other versions
EP0727316B1 (de
Inventor
Pierre Girard
Joseph Dussaud
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.)
Ahlstrom Industries SA
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0727316A1 publication Critical patent/EP0727316A1/de
Application granted granted Critical
Publication of EP0727316B1 publication Critical patent/EP0727316B1/de
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
    • B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes
    • 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

Definitions

  • the present invention relates to a document capable of being printed and comprising means making it possible to reveal any falsification or attempted falsification.
  • the invention relates in particular to any document (of the sheet, leaflet, label, check) type capable of being printed, in black and white and / or in color, by any mechanized (printer) or manual (pen) process and of which it is desirable / necessary to ensure that the print has not been altered or modified, with a view to falsification.
  • the invention is applicable to documents such as, for example, checks, tickets, labels of specific products, official documents, etc.
  • the means used by falsifiers are numerous and include chemical agents of the solvent type, scraping and erasing means, which aim to delete or erase certain information printed on the document in question and replace it with others, such as by example, for a check, the sum and / or the beneficiary.
  • Special inks such as magnetic inks, are used to, for example, write the CMC7 code of the check number or other information.
  • the falsifier no longer has any obstacles in front of it to scrape or erase the information and replace it with another with said ink.
  • Yet another known means consists in using colored paper and in depositing on the face of the paper intended to receive the printing, a layer of opaque product (for example whitish wax) sensitive to pressure. Any unauthorized scraping or printing operation pierces the opaque layer and thus reveals the colored paper located below.
  • a layer of opaque product for example whitish wax
  • This known type of paper is very fragile, which proves to be inconvenient to use and, moreover, it has a particular aesthetic appearance which limits its applications.
  • the paper support layer is coated with a coloring layer containing micro-capsules capable of breaking under the effect of pressure during printing / writing to release a coloring substance capable of reacting with a reagent also incorporated in said coloring layer.
  • a coloring layer containing micro-capsules capable of breaking under the effect of pressure during printing / writing to release a coloring substance capable of reacting with a reagent also incorporated in said coloring layer.
  • Such papers called carbonless, are used in a bundle comprising a first sheet of ordinary paper as an original and one or more additional associated sheets serving as duplicates.
  • This paper is relatively fragile, due to the extreme sensitivity of the coloring layer, which requires great care when handling the paper to avoid friction, creating unwanted inscriptions. Furthermore, the coloring layer tends to clog the printing means and in particular ballpoint pens.
  • the document capable of receiving an impression of the type comprising a support layer of rigid or semi-rigid material, such as paper is characterized in that it comprises a layer, arranged on at least one face of the support layer, and containing a first substance capable of causing, when it is brought into contact with a second substance, under the effect of an external pressure, a colored reaction, the second substance being incorporated in the mass of the support layer.
  • the second substance is distributed substantially uniformly throughout the thickness of the support layer.
  • the second substance comprises reactive fillers of mineral origin.
  • the first substance is placed in microcapsules, possibly being associated with a solvent, the microcapsules being able to break under the effect of said pressure.
  • a protective layer may be provided on the layer including the coloring substance, said protective layer comprising for example natural calcium carbonate for 100 parts, a dispersant for 0.5 parts and styrene butadiene latex for 15 parts.
  • the support layer can be frictional paper for example and the coloring layer is arranged on the rough side thereof.
  • the second substance has a surface density of between 1.5 and 15 g / m 2 , and preferably between 3 and 7 g / m 2 .
  • the reactive filler preferably consists of alumina silicate based on montmorillonite or phenolic resin or modified silica.
  • a pigment insoluble in water but organosoluble in a solvent is incorporated in the paper support layer, and the layer with coloring matter comprises microcapsules containing a solvent for said pigment.
  • document used generically means sheet, check, leaflet, card, label, etc.
  • the document of the invention shown comprises a support layer 1 of paper, on one of the faces of which (the lower face in this case) is arranged a layer comprising microcapsules 3; on layer 2, a protective layer 4 is provided.
  • the support layer may consist of any type of paper, without limitation and having any fibrous constitution, from virgin or recycled fibers, natural or synthetic, and optionally including adjuvants commonly used in the stationery field, such as neutral, acid or basic bonding products, alumina sulfates for acid bonding or pH adapter, resins, dyes, or any other additional filler or component required for the use and purpose of the paper.
  • adjuvants commonly used in the stationery field such as neutral, acid or basic bonding products, alumina sulfates for acid bonding or pH adapter, resins, dyes, or any other additional filler or component required for the use and purpose of the paper.
  • the paper (support layer 1) can undergo any preparation and finishing operation, such as preparation in a "flat table", deposition using an sizing press of an aqueous composition (coating binder such as starch, polyvinyl alcohol , cellulose derivatives).
  • aqueous composition coating binder such as starch, polyvinyl alcohol , cellulose derivatives.
  • the preparation of the support layer 1 of paper includes the incorporation into the mass of the paper of reactive fillers, for example of an inorganic constituent, such as more particularly alumina silicate (known under the trade name COPISIL N 210) chemically modified based on montmorillonite.
  • an inorganic constituent such as more particularly alumina silicate (known under the trade name COPISIL N 210) chemically modified based on montmorillonite.
  • COPISIL N 210 chemically modified based on montmorillonite.
  • a density layer of between 1 and 12 g / m 2 , preferably between 2 and 8 g / m 2 , comprising micro-particles 3 is deposited.
  • the coloring substance colorless as it is in the microcapsules, is capable of causing a colored reaction with the reactive charges 5 incorporated in the mass of the paper 1, said charges being made up of acid clay particles accepting electrons. The formation of the color reaction is explained later.
  • the layer 2 is composed of a binder added to the microcapsules 3, the binder allowing the adhesion and the maintenance of said microcapsules on the support layer 1.
  • the binder can be latex, l starch, polyvinyl alcohols.
  • the quantity of layer 2 deposited preferably varies between 1 and 12 g / m 2 , and more particularly between 2 and 8 g / m 2 .
  • a protective layer 4 is deposited on the surface of the layer 2 of microcapsules 3, composed of a mixture of mineral fillers, of the calcium carbonate, kaolin, talc, or similar type, and of binders of the type latex, starch, proteins, polyvinyl alcohol, etc., in order to bind the mineral particles and to ensure the solidity of said protective layer.
  • document 1 is described below, with reference to FIG. 2, in order to allow the detection of any fraud, falsification.
  • Figure 2 there is shown by way of example the document of Figure 1, on which moves a printing means represented by the end portion of a ballpoint pen 6, provided with a ball 7, the pen being known in itself and associated with an ink reserve not shown, and flowing around the ball 7 towards the lower part and therefore on the upper face 8 of the paper layer 1.
  • the relative size of the ball pen 6 has been reduced voluntarily for reasons of understanding, compared to document proportions.
  • the user exerts a pressure comprising a downward vertical main component, which is transmitted by layer 1 to layer 2 comprising microcapsules.
  • the envelope of the latter under the effect of pressure, breaks and releases the coloring substance which they incorporate; said substance then penetrates into the support layer 1. Note that the coloring substance cannot flow towards the lower part, taking into account the presence of the protective layer 4.
  • the passage of the ballpoint pen 6 causes a colored reaction 9 in the mass of the support layer 1 and also on the back of the document.
  • FIG. 3 shows in section a document produced from a support layer 10 of rubbed paper, that is to say comprising a rough face 11 on the side of the coloring layer 2 and of the protective layer 4, and a smooth surface 12 on the opposite side.
  • the rough face 11 includes surface irregularities in the form of hollows 13 and bumps 14, schematically shown in the figure.
  • micro-capsules 3 are placed.
  • This type of paper may include also vegetable charges of ad hoc particle size making it possible to increase the compressibility of the support layer 10.
  • the irregularities (hollows 13 and bumps 14) and the compressibility of the support 1 dampen the pressure coming from the printing means from the upper face 12 of the support layer 10. This thus avoids, or at least limits, the transmission of pressure on the document located below the one submitted for printing. This has the advantage of avoiding having to use an intermediate card placed under the document being printed.
  • a coloring layer 2 with microcapsules 3 can be placed on each face of the support layer 1, and a protective layer on each of these.
  • the document includes in the mass of the support layer 1, in addition to the reactive fillers 5, colored solid pigments 15 with fine particle size and dispersed in the mass.
  • the pigments are insoluble in water but organosoluble, that is to say soluble as soon as they are brought into contact with organic solvents, this solubilization making it possible to reveal their color.
  • FIG. 5 shows another variant in the form of a support layer 16, at least one of the faces of which is covered with a layer 2 ′ with microcapsules 3 ′, itself covered with a protective layer 4.
  • the latter is similar to that of the embodiments described with reference to the other figures.
  • the support layer 16 In the mass of the support layer 16, are distributed pigment particles 15 ′, insoluble in water but organosoluble in a solvent of the type of those used to dissolve / erase the printing ink.
  • the 3 'microcapsules contain such a solvent. During printing, the micro-capsules 3 'break and release the solvent which then reacts with the pigments 15' to color the bulk of the support and the back of the document.
  • This preparation is then coated at a concentration of 35% with an air knife coating device.
  • the document thus obtained can be printed by any printing process such as offset, front and / or back, without altering the quality of the paper.
  • Any information or message can be entered using a ballpoint pen (black or blue) or an impact printer.
  • the invention makes it possible to detect any fraud or falsification. Indeed, any attempt to erase by scratching, erasing, the original message, reveals a stain not only in the mass but also on the back, which thus reveals fraud, since the original message is written on the back and front of the document .
  • this document can be used in the form of a bundle with two sheets, the first of which constitutes the original, in the form of an embodiment such as described above for example, and a second sheet consisting of a chemical carbonless coated with a receiving layer of the CF (Coated Front) type or an autonomous carbonless.
  • CF Coated Front
  • the magnetic ink codes (known by the acronym CMC7), printed on the check produced according to example 1, appear on the back of the check in red color (in the 'example described). This provides additional security to detect any attempt to delete or alter the CMC7 code.
  • the invention can also be applied to any document intended to be composted, stamped, or on which a seal is affixed, or in general any impression of a message or of an item of information intended to attest the authenticity of the document in question.
  • the printing on the back, according to the invention, of the original message provides an additional advantage in detecting any attempt to duplicate a document by photocopying.
  • photocopies especially color
  • have faithful reproduction capacities which can lead to obtaining a double or duplicate with a strong resemblance to the original.
  • the photocopies recto / verso always present, because of the limits of the technology, on the mechanical level, a shift between the copy of the verso and the copy of the recto.
  • the use of the document of the invention makes it possible to detect this offset and therefore any attempt to photocopy in order to make a duplicate fraudulently.
  • the proportions and compositions are the same as in Example 1, except that the paper is of the rubbed type, that is to say with smooth front and rough back, and the coating operations are carried out on the rough face.
  • This feature can be advantageously used in the field of the security check, ticketing and labeling market. Indeed, it may be advantageous in certain cases, and in particular for certain types of products, to produce labels making it possible to attest the origin of a product and to avoid the production of false labels or the alteration of the latter.
  • Example 1 Starting from the conditions, formulation and composition of Example 1, 10% of vegetable charges of fine particle size, between 15 and 100 ⁇ m, are incorporated into the mass of the paper support layer.
  • These vegetable fillers increase the compressibility of the support paper layer, which makes it possible to protect the micro-capsules from friction, which can alter the next sheet.
  • At least one side of the support layer is coated with a layer of microcapsules containing one or more colorless dyes and developing a blue color with the chemically modified alumina silicate based of montmorillonite, constituting the second reactive substance incorporated into the mass of the support layer.
  • the microcapsules contain a colorless dye capable of causing a reaction of green color with the reactive charges dispersed in the support layer.
  • the microcapsules contain a substance capable of generating a black reaction with the reactive charges.
  • red color pigments Sud red 7B from BAYER
  • This dye is insoluble in water but soluble in other solvents.
  • the paper is then calendered and then coated with microcapsules containing a solvent capable of dissolving said dye.
  • a protective layer (mineral particles) is deposited.
  • This example corresponds to the embodiment shown in FIG. 4.
  • the surface density is 5 g / m 2 .
  • micro-capsules containing a red emission dye and a protective layer are deposited, as in Example 1.
  • Example 1 On a paper support, free of optical brightener, a layer of microcapsules containing an optical brightener soluble in an oil is deposited, the layer of microcapsules being covered with a protective layer, as in Example 1.
  • optical brightener is meant a product reacting to light and amplifying in particular the ultraviolet part of the radiation.
  • a layer of microcapsules is deposited (ref .: BAYMICRON WJR from BAYER) containing a colorless, colorless substance, soluble in an oil and developing, on contact with chemically modified alumina silicate based on montmorillonite, a gray coloration or slightly colored green, blue allowing a reading with all processes with infrared radiation of the type barcode reader, for example infrared laser pen.
  • the invention is not limited to the embodiments described and shown, and includes all variants, in particular in terms of colors and composition.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Color Printing (AREA)
  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Document Processing Apparatus (AREA)
  • Cleaning In Electrography (AREA)
EP96400320A 1995-02-17 1996-02-16 Druckbares Dokument enthaltend Mittel zum Aufdecken von Fälschungen Expired - Lifetime EP0727316B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9501831A FR2730671B1 (fr) 1995-02-17 1995-02-17 Document imprimable comprenant des moyens revelateurs de falsification
FR9501831 1995-02-17

Publications (2)

Publication Number Publication Date
EP0727316A1 true EP0727316A1 (de) 1996-08-21
EP0727316B1 EP0727316B1 (de) 2000-06-14

Family

ID=9476242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400320A Expired - Lifetime EP0727316B1 (de) 1995-02-17 1996-02-16 Druckbares Dokument enthaltend Mittel zum Aufdecken von Fälschungen

Country Status (5)

Country Link
EP (1) EP0727316B1 (de)
AT (1) ATE193864T1 (de)
DE (1) DE69608827T2 (de)
ES (1) ES2148695T3 (de)
FR (1) FR2730671B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972649A2 (de) * 1998-07-16 2000-01-19 KANZAN SPEZIALPAPIERE GmbH Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung
US7250191B2 (en) 2001-12-21 2007-07-31 Tesa Aktiengesellschaft Self-adhesive labels, their production and use
DE19746998B4 (de) * 1997-10-24 2008-06-05 Tesa Ag Laseretiketten und ihre Verwendung
DE102013011428A1 (de) 2013-07-09 2015-01-15 Thomas Scheubner Selbstklebend ausgerüstete Etiketten zur Feststellung der Authentizität

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743893A1 (de) 2012-12-12 2014-06-18 Gemalto SA Verfahren zum Sichern eines Dokuments mit gedruckter Information und entsprechendes Dokument
DE102019005164A1 (de) * 2019-07-25 2021-01-28 Giesecke+Devrient Mobile Security Gmbh Sicherheitsfolie mit Färbesystem
DE102020106954A1 (de) 2020-03-13 2021-09-16 Bundesdruckerei Gmbh Sicherheits- und Wertdokument mit einem elektronischen Element

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041024A1 (de) * 1980-05-28 1981-12-02 ARJOMARI-PRIOUX Société anonyme dite Sicherheitspapier zur Verhütung von Fälschungen durch Verwendung von Kugelschreibern mit auslöschbarer Tinte
GB2111430A (en) * 1981-12-14 1983-07-06 Ba Security Res Ltd Identification cards
US4681348A (en) * 1985-05-31 1987-07-21 The Standard Register Co. Financial document protection
EP0326303A1 (de) * 1988-01-27 1989-08-02 Moore Business Forms, Inc. Sicherheit für mit Drucksystemen hergestellte Bilder
EP0570634A1 (de) * 1991-02-08 1993-11-24 The Standard Register Company Lösungsmittel und/oder druckempfindliche Sicherheitstinte und Sicherheitsdokument
WO1995002512A1 (en) * 1993-07-16 1995-01-26 Francesco Bosisio Process for incorporating and protecting writing on paper documents, especially on bank cheques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041024A1 (de) * 1980-05-28 1981-12-02 ARJOMARI-PRIOUX Société anonyme dite Sicherheitspapier zur Verhütung von Fälschungen durch Verwendung von Kugelschreibern mit auslöschbarer Tinte
GB2111430A (en) * 1981-12-14 1983-07-06 Ba Security Res Ltd Identification cards
US4681348A (en) * 1985-05-31 1987-07-21 The Standard Register Co. Financial document protection
EP0326303A1 (de) * 1988-01-27 1989-08-02 Moore Business Forms, Inc. Sicherheit für mit Drucksystemen hergestellte Bilder
EP0570634A1 (de) * 1991-02-08 1993-11-24 The Standard Register Company Lösungsmittel und/oder druckempfindliche Sicherheitstinte und Sicherheitsdokument
WO1995002512A1 (en) * 1993-07-16 1995-01-26 Francesco Bosisio Process for incorporating and protecting writing on paper documents, especially on bank cheques

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746998B4 (de) * 1997-10-24 2008-06-05 Tesa Ag Laseretiketten und ihre Verwendung
EP0972649A2 (de) * 1998-07-16 2000-01-19 KANZAN SPEZIALPAPIERE GmbH Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung
EP0972649A3 (de) * 1998-07-16 2001-09-12 KANZAN SPEZIALPAPIERE GmbH Mehrschichtiges Blattmaterial mit Sicherheitskennzeichen und Verfahren zur Herstellung
US7250191B2 (en) 2001-12-21 2007-07-31 Tesa Aktiengesellschaft Self-adhesive labels, their production and use
DE102013011428A1 (de) 2013-07-09 2015-01-15 Thomas Scheubner Selbstklebend ausgerüstete Etiketten zur Feststellung der Authentizität

Also Published As

Publication number Publication date
FR2730671B1 (fr) 1997-04-04
ES2148695T3 (es) 2000-10-16
EP0727316B1 (de) 2000-06-14
DE69608827D1 (de) 2000-07-20
FR2730671A1 (fr) 1996-08-23
ATE193864T1 (de) 2000-06-15
DE69608827T2 (de) 2000-11-30

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