EP1626651A1 - Substrate provided with a confidential pattern - Google Patents

Substrate provided with a confidential pattern

Info

Publication number
EP1626651A1
EP1626651A1 EP04731074A EP04731074A EP1626651A1 EP 1626651 A1 EP1626651 A1 EP 1626651A1 EP 04731074 A EP04731074 A EP 04731074A EP 04731074 A EP04731074 A EP 04731074A EP 1626651 A1 EP1626651 A1 EP 1626651A1
Authority
EP
European Patent Office
Prior art keywords
substrate
bleaching
ink
product
substrate according
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
EP04731074A
Other languages
German (de)
French (fr)
Other versions
EP1626651B1 (en
Inventor
Michel Lata
Lucien Sequalino
Régis TORCQ
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.)
Michel Lata SA
SOFII SA
Original Assignee
Michel Lata SA
SOFII SA
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 Michel Lata SA, SOFII SA filed Critical Michel Lata SA
Priority to PL04731074T priority Critical patent/PL1626651T3/en
Publication of EP1626651A1 publication Critical patent/EP1626651A1/en
Application granted granted Critical
Publication of EP1626651B1 publication Critical patent/EP1626651B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • B42D15/02—Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets
    • B42D15/025—Postcards; Greeting, menu, business or like cards; Letter cards or letter-sheets with peel-away layer hiding information

Definitions

  • the field of the invention is that of printing and printing processes, usually used in the manufacture of printed product substrates.
  • the invention particularly relates to a substrate such as a document adapted to be provided with a confidential drawing by printing with a normal ink in a camouflage area.
  • Such a substrate is known from WO99 / 24267.
  • This substrate comprises an adhesive film adhered to the substrate at the location of the camouflage zone.
  • the confidential pattern forming an inscription is printed by laser printing or inkjet on the upper surface of the film. It becomes readable by separation of the film and the substrate. Separation causes permanent changes in the substrate.
  • EP 1 120 291 A2 the confidential drawing becomes readable by discoloration of the ink used to print the camouflage means in the camouflage zone with the aid of heat.
  • the ink used is therefore a thermochromatic ink.
  • EP 1 20 291 A2 the effect of the discoloration must be irreversible.
  • EP 1 120 291 A2 does not indicate ink with this quality. In the case where such an ink exists, the choice is probably limited, inter alia, with regard to the colors.
  • the substrate according to the invention is defined in claim 1.
  • the substrate according to the invention is thus characterized in that the camouflage means of the camouflage zone is printed beforehand with a special ink.
  • the special ink unlike the normal ink, is irreversibly erasable with a bleaching product.
  • the bleaching product is deposited in a bleaching substrate which is bound to substrate and that can be put in contact with the special ink in the camouflage area.
  • the normal ink may be toner of a laser printer or ink of an inkjet printer.
  • an inkjet printer it is favorable to use a gray color composed for example of magenta, yellow and cyan.
  • the special ink is an ink obtained by reacting the carbonless products CF and CB, such as those known to those skilled in the art.
  • the application of carbonless CF and CB products can be performed by depositing with the traditional printing technologies of the CB product on the substrate previously treated with CF.
  • a mixture of the two products CF / CB is produced, one of two products being coated in microcapsules, the two products being placed in a common binder to make the deposit.
  • Printing processes known to those skilled in the art allow to deposit this product by exerting sufficient pressure on the mixture at the time of deposition, so as to reveal the reaction, or to simply deposit the mixture without pressure excessive, and exert pressure later to reveal the graphic forms of the camouflage means.
  • a mixture of the two products CF / CB is made based on a phenol resin. The dyes are developed completely in the mixture before being printed.
  • an assembly of substrates is used with on one CF treatment, on the other CB treatment, possibly carried out with the techniques described above, and pressure is exerted on the assembly of in such a way as to reveal the graphic forms of the means of camouflage.
  • dyes different from the traditional gray widely used in the carbonless copy are used to make the graphic forms of the camouflaging means, so that the result obtained on the substrate is of one color. different than gray.
  • different colors are assembled within the same substrate, to obtain graphic shapes and graphically elaborate inscriptions, such as those commonly encountered in the printing press.
  • a black and / or aqueous based ink available from the ink manufacturers, is used to make the camouflage zone, this ink being deposited with traditional printing technologies, which are well known to the artist. skilled in the art.
  • the camouflage means can be printed in the camouflage area with the special ink directly on the surface of the substrate of the invention.
  • camouflage means on an adhesive label and to deposit this label as a camouflage label on the surface of the substrate of the invention in the camouflage zone.
  • the bleaching product is a CF layer desensitizing ink, such as that used in printing technologies to cancel the autocopying properties of chemical papers, and particularly a solution containing the amines. ethoxyliées.
  • the bleaching product is a whitening product such as those used in bleaching technologies for paper and textiles, and particularly commercial bleach or brighteners. optics.
  • a whitening product such as those used in bleaching technologies for paper and textiles, and particularly commercial bleach or brighteners. optics.
  • a whitening product it is also possible to advantageously use the following chemical product:
  • the bleaching substrate may be a fiber pad coated with bleaching product.
  • the pad is separated from the substrate and contacted with the special ink in the camouflage area. This has the effect of instantly causing the fading of the special ink, which changes from its original color to a much lighter and even invisible color.
  • the bleaching product is encapsulated in microcapsules which can be broken off under pressure.
  • the product thus obtained can be deposited on wipes (as bleaching substrates) such as those used in everyday life.
  • the wipes can remain in the open air without the discolouring product, currently encapsulated, losing its effectiveness.
  • the wipe is then used as a pad that is rubbed on the decolorizable printing, which has the effect of bursting the microcapsules of the bleaching product and thus obtaining a contact between the bleaching product and the ink special, which produces its discoloration.
  • the bleaching product microcapsules may be placed in (by mixing) or overprinting an adhesive, as known to those skilled in the art, this glue being deposited on a substrate and being used to fix this substrate in the substrate of the invention.
  • this glue is able to discolour impressions. Discoloration is achieved by applying this substrate as a bleaching substrate to the camouflage area, ensuring that the bleaching product and the camouflaging means are matched while applying pressure to the uncoated top surface of this substrate. This has the effect of popping the microcapsules bleaching product and thus discolor the special ink.
  • the bleaching product is in contact with the glue.
  • the lack of tightness that we encounter on a proportion of bleaching product micro-capsules generates a penetration of the bleaching product in the glue, which has the effect of disintegrating it. Then, the effectiveness of the bleaching product is lower.
  • the bleaching substrate there is an additional substrate between the bleaching product and the glue to avoid having in direct contact the bleaching product and the glue and to protect the glue.
  • the additional substrate is treated on the surface which is in contact with the microcapsules of decolorizing product.
  • the glue is deposited in the bleaching substrate only in marginal strips on both sides of a central strip with the bleaching product.
  • the bleaching substrate is treated on the surface of the central strip which is in contact with the microcapsules of bleaching product.
  • the bleaching substrate is adhered to a non-stick area.
  • the non-stick area may be formed by an adhesive / non-stick substrate adhered to the substrate.
  • the bleaching substrate (and the additional substrate) is (are) transparent, which makes it possible to avoid having to remove the substrate coated with bleaching product from the place where it was placed to ensure the discoloration to notice the phenomenon of transparency discoloration, when the substrate supporting the prints is not itself transparent.
  • the bleaching substrate (and the additional substrate) is (are) a plastic material.
  • the glue is a permanent glue with respect to the substrate.
  • a permanent glue ensures that the adhesive film can no longer be removed from the area to be discolored, which is an additional barrier to forgery that could be reprinted with ink traditional camouflage overlay on the substrate after seeing the drawing confidential.
  • the substrate is adapted to be provided with the confidential design by laser printing or inkjet in the camouflage zone.
  • the system of the invention also works with other printing technologies, provided that the ink used does not react under the effect of the bleaching product.
  • offset and UV typography inks make it possible to obtain the same result with regard to the resistance to fading.
  • the substrate may be a document formed for example by a sheet of A4 paper.
  • the impression of the camouflage means can represent all the imaginable graphic forms: signs, characters, line, solid, etc.
  • the confidential design is preferably an inscription of the characters and / or numbers.
  • Fig. 1 a schematic representation of a substrate according to the invention with a camouflage means made in erasable ink in a camouflage zone;
  • Fig. 2 a method of laser printing or inkjet of a confidential design in the camouflage area for customization of the substrate
  • Fig. 3-5 a process of discolouring the ink in the camouflage zone
  • Fig. 6 the substrate according to Figure 5 on which the confidential drawing has become readable
  • Fig. 7 a schematic representation of another embodiment of the substrate of the invention.
  • Fig. 8 a) - d) a schematic representation of another embodiment of the substrate of the invention.
  • a substrate which may be a sheet of paper A4 to 80 g per m 2 .
  • a camouflage area (20) of rectangular shape on the upper surface (11) of the substrate (10) a camouflage (21) is printed with a special erasable ink.
  • a sandwich complex (30) which has an adhesive / non-stick film (31) and an adhesive film (34).
  • the films (31) and (34) consist of a transparent plastic material such as polyester.
  • the glues (32) and (35) of the two films (31) and (34) are permanently.
  • the upper surface of the film (32) was coated with a release agent (33). With this coating (33) the adhesive film (34) can be removed from the film (31) as shown in Figure (3).
  • the adhesive (35) of the adhesive film (34) is superimposed with a bleaching product (36) encapsulated in microcapsules.
  • the substrate thus obtained, shown in FIG. 1, is ready to be used by issuing financial institutions to send for example to each customer the confidential code of his credit card as a confidential design.
  • the agent of the financial institution prints, for example by means of a laser printer or an inkjet printer, some text such as the name and address of the recipient and, in the camouflage zone (20), his code confidential (40) as indicated in FIG. 2.
  • This latter impression is preferably made (in positive or in negative) in weft of small dots so that the surface of the printed figures is only covered at 30%, so that it is impossible to read them on the means of camouflage. (21).
  • Substrates thus completed are placed in envelopes and shipped to customers.
  • each customer makes the confidential code (40) readable by first detaching the adhesive film (34) and sticking it in line with the camouflage zone (20) as shown in FIGS. and 4.
  • the customer will then exert pressure on the film (34) by rubbing the film as shown in Figure 5, which has the effect of popping the microcapsules of bleaching product and thus obtain a setting contact of the bleaching product and special camouflage printing ink (21).
  • the special ink starts to fade immediately, then fades very quickly to become totally white, while the toner or the inkjet ink of the PIN remains intact.
  • the PIN appears because of the transparency of the film 34 as shown in Figure 5.
  • the bleaching product (36) is in contact with the glue (35) of the adhesive film (34).
  • the lack of tightness that is encountered on a proportion of the bleaching product micro-capsules generates a penetration of the bleaching product in the glue, which has the effect of disintegrating it. Then, the effectiveness of the bleaching product is lower (thus the discoloration is longer).
  • the solution as detailed in Figure 7 avoids having in direct contact the bleaching product (36) and the glue (35).
  • this solution there is another transparent polyester film (37) between the bleaching product (36) and the glue (35) to protect the glue (35).
  • a transparent polyester film (37) as a glue protection screen (35) is a guarantee of rapid reaction.
  • the film (37) is treated on the surface which is in contact with the microcapsules of bleaching product (36), in order to obtain a sufficient mechanical adhesion of the microcapsules.
  • a camouflage means (21) is printed in a camouflage zone of a substrate (10) and a sandwich complex (30) is glued. ) (as the sandwich complex (30) of Figure 1 for example) on the back of the substrate (10) in line with the camouflage zone (20). Then we perform a pre-cut 50 of the camouflage area
  • the agent of the financial institution prints by means of a laser printer or an inkjet printer for example a PIN (40) in the camouflage area (21).
  • the client makes the confidential code readable by first cutting the pre-cutting of the substrate and turning it in its cavity in the opposite direction. This is possible because the lower surface of the film (31) was coated with a release product (33). Finally the customer will exert by friction a pressure on the film (34) e which has the effect of popping the micro-capsules of bleaching product (36) and thus to obtain a contact between the bleaching product (36) and the special ink of the printing of the camouflage means (21). The special ink starts to fade immediately.
  • the PIN (40) appears because of the transparency of the film (34).
  • a camouflage zone (70) is deposited on the same surface (11) of a substrate (10).
  • sandwich (60) which presents a film adhesive / non-stick (61) and an adhesive film (64)
  • the films (61) and (64) are made of a transparent plastic material such as polyester.
  • the adhesives (62) and (65) of the two films (61) and (64) are permanently.
  • the upper surface of the film (62) was coated with a release product (63). With this coating (63) the adhesive film (64) can be removed from the film (61) in the same way as shown in Figure (3).
  • the glue (65) of the adhesive film (64) is deposited in this film (64) only in marginal strips (68) on both sides of a central strip (69) with the product bleaching agent (66).
  • This solution also allows, as the solution as detailed in Figure 7, to avoid having in direct contact the bleaching product (66) and the glue (65).
  • This solution also has the advantage that the sandwich complex (60) can be produced in continuous form without waste.
  • FIG. 9 there is further deposited in the camouflage area (70) an adhesive label (73) on the surface (11) of the substrate (10).
  • the adhesive label (73) has a substrate (74), for example made of paper.
  • the cohesion of the substrate is preferably less strong than the adhesion of a conventional adhesive film to the surface of this substrate, in particular less than 1.5 Newton (measured by Finat method no.1).
  • the adhesive (75) of the adhesive label (71) is permanently.
  • a camouflage (71) with a special erasable ink is printed on the upper surface of the adhesive label (73). This solution has the advantage that the erasable ink must not be printed directly on the substrate (10) but can be printed beforehand by a specialized establishment.
  • the sandwich complex (30 or 60) and the adhesive label (73) can be deposited in parallel and at the same time in the substrate (10).
  • the two parts have an independant extension in a dimension.
  • the two parts could have a height H identical.
  • the width L1 of the sandwich complex (30 or 60) is larger than the width L2 of the adhesive label (73).

Abstract

A substrate (10) to be provided with a confidential pattern (40) using normal ink in a concealing region (20), wherein the concealing means (21) of the concealing region (20) is pre-printed with a special ink. Unlike the normal ink, the special ink can be permanently erased using a colour-removing agent (36). The colour-removing agent (36) is deposited on a colour-removing substrate (34) which is bonded to the substrate (10) and can be contacted with the concealing region (20).

Description

DESCRIPTION TITRE DESCRIPTION TITLE
Substrat adapté à être muni d'un dessin confidentielSubstrate adapted to be provided with a confidential drawing
DOMAINE DE L'INVENTIONFIELD OF THE INVENTION
Le domaine de l'invention est celui de l'imprimerie et des procédés d'impression, usuellement utilisés dans la fabrication de substrats de produits imprimés. L'invention concerne particulièrement un substrat tel qu'un document adapté à être muni d'un dessin confidentiel par impression avec une encre normale dans une zone de camouflage.The field of the invention is that of printing and printing processes, usually used in the manufacture of printed product substrates. The invention particularly relates to a substrate such as a document adapted to be provided with a confidential drawing by printing with a normal ink in a camouflage area.
ETAT DE LA TECHNIQUESTATE OF THE ART
Un tel substrat est connu de W099/24267. Ce substrat comporte un film adhésif collé sur le substrat à l'endroit de la zone de camouflage. Le dessin confidentiel formant une inscription est imprimé par impression laser ou jet d'encre sur la surface supérieure du film. Il devient lisible par séparation du film et du substrat. La séparation cause des modifications permanentes du substrat. Selon une méthode alternative connu de EP 1 120 291 A2 le dessin confidentiel devient lisible par décoloration de l'encre utilisée pour imprimer le moyen de camouflage dans la zone de camouflage à l'aide de chaleur. L'encre utilisée est donc une encre thermochromatique. Selon EP 1 20 291 A2 l'effet de la décoloration doit être irréversible. Pourtant, EP 1 120 291 A2 n'indique pas d'encre avec cette qualité. Dans le cas où une telle encre existe le choix est probablement limité entre autre en ce qui concerne les couleurs.Such a substrate is known from WO99 / 24267. This substrate comprises an adhesive film adhered to the substrate at the location of the camouflage zone. The confidential pattern forming an inscription is printed by laser printing or inkjet on the upper surface of the film. It becomes readable by separation of the film and the substrate. Separation causes permanent changes in the substrate. According to an alternative method known from EP 1 120 291 A2 the confidential drawing becomes readable by discoloration of the ink used to print the camouflage means in the camouflage zone with the aid of heat. The ink used is therefore a thermochromatic ink. According to EP 1 20 291 A2 the effect of the discoloration must be irreversible. However, EP 1 120 291 A2 does not indicate ink with this quality. In the case where such an ink exists, the choice is probably limited, inter alia, with regard to the colors.
PRESENTATION DE L'INVENTIONPRESENTATION OF THE INVENTION
Le substrat suivant l'invention est défini dans la revendication 1. Le substrat suivant l'invention est ainsi caractérisé en ce que le moyen de camouflage de la zone de camouflage est imprimé préalablement avec une encre spéciale. L'encre spéciale, à la différence de l'encre normale, est effaçable de manière irréversible avec un produit décolorant. Le produit décolorant est déposé dans un substrat décolorant qui est lié au substrat et qui peut être mis en contact avec l'encre spéciale dans la zone de camouflage.The substrate according to the invention is defined in claim 1. The substrate according to the invention is thus characterized in that the camouflage means of the camouflage zone is printed beforehand with a special ink. The special ink, unlike the normal ink, is irreversibly erasable with a bleaching product. The bleaching product is deposited in a bleaching substrate which is bound to substrate and that can be put in contact with the special ink in the camouflage area.
L'encre normale peut être du toner d'une imprimante laser ou de l'encre d'une imprimante jet d'encre. En utilisant une imprimante jet d'encre il est favorable d'utiliser une couleur grise composée par exemple de magenta, jaune et cyan.The normal ink may be toner of a laser printer or ink of an inkjet printer. By using an inkjet printer it is favorable to use a gray color composed for example of magenta, yellow and cyan.
Suivant une réalisation du substrat de l'invention, l'encre spéciale est une encre obtenue par réaction des produits autocopiants CF et CB, telles que ceux connus de l'homme de l'art.According to one embodiment of the substrate of the invention, the special ink is an ink obtained by reacting the carbonless products CF and CB, such as those known to those skilled in the art.
L'application des produits autocopiants CF et CB peut s'opérer par dépôt avec les technologies d'impression traditionnelles du produit CB sur le substrat préalablement traité avec du CF.The application of carbonless CF and CB products can be performed by depositing with the traditional printing technologies of the CB product on the substrate previously treated with CF.
Selon une méthode de réalisation alternative, un mélange des deux produits CF/CB est réalisé, l'un de deux produits étant enrobé dans des micro-capsules, les deux produits étant placés dans un liant commun pour en réaliser le dépôt. Les procédés d'impression connus de l'homme de l'art permettent de déposer ce produit en exerçant une pression suffisante sur le mélange au moment du dépôt, de telle manière à faire révéler la réaction, ou bien de déposer simplement le mélange sans pression excessive, et d'exercer la pression ultérieurement pour faire apparaître les formes graphiques du moyen de camouflage. Selon une méthode de réalisation alternative, un mélange des deux produits CF/CB est réalisé à base d'une résine de phénol. Les colorants sont développés complètement dans le mélange avant d'être imprimés.According to an alternative embodiment, a mixture of the two products CF / CB is produced, one of two products being coated in microcapsules, the two products being placed in a common binder to make the deposit. Printing processes known to those skilled in the art allow to deposit this product by exerting sufficient pressure on the mixture at the time of deposition, so as to reveal the reaction, or to simply deposit the mixture without pressure excessive, and exert pressure later to reveal the graphic forms of the camouflage means. According to an alternative embodiment, a mixture of the two products CF / CB is made based on a phenol resin. The dyes are developed completely in the mixture before being printed.
Selon une méthode de réalisation alternative, on utilise un assemblage de substrats avec sur l'un un traitement CF, sur l'autre un traitement CB, éventuellement réalisés avec les techniques décrites précédemment, et l'on exerce une pression sur l'assemblage de telle manière à faire apparaître les formes graphiques du moyen de camouflage.According to an alternative embodiment, an assembly of substrates is used with on one CF treatment, on the other CB treatment, possibly carried out with the techniques described above, and pressure is exerted on the assembly of in such a way as to reveal the graphic forms of the means of camouflage.
Dans le cadre d'une réalisation alternative, on utilise des colorants différents du traditionnel gris largement répandu dans l'autocopiant pour réaliser les formes graphiques du moyen de camouflage, de telle manière à ce que le résultat obtenu sur le substrat soit d'une couleur différente que le gris. Dans le cadre d'une réalisation alternative, on assemble différentes couleurs au sein d'un même substrat, pour obtenir des formes graphiques et des inscriptions graphiquement élaborées, telles que celles rencontrées usuellement dans l'imprimerie.In the context of an alternative embodiment, dyes different from the traditional gray widely used in the carbonless copy are used to make the graphic forms of the camouflaging means, so that the result obtained on the substrate is of one color. different than gray. In the context of an alternative embodiment, different colors are assembled within the same substrate, to obtain graphic shapes and graphically elaborate inscriptions, such as those commonly encountered in the printing press.
La présente description montre qu'il n'existe aucune limite en terme de couleurs au procédé tel que décrit ci-avant, dans la mesure où les caractéristiques des produits utilisés dans les technologies d'autocopie font appel à des colorants, la palette des couleurs étant illimitée, comme connu de l'homme de l'art. Les techniques d'impression, connues de l'homme de l'art, permettent en outre l'assemblage de teintes en mélange avant dépôt sur le substrat, mais aussi en surimpression sur le substrat - tel que rencontré en procédé quadrichromie - ce qui a pour effet de permettre un éventail illimité de nuances de couleurs dans les inscriptions et formes graphiques obtenues sur le substrat.The present description shows that there is no limit in terms of colors to the process as described above, inasmuch as the characteristics of the products used in the technologies of autopopy involve dyes, the color palette being unlimited, as known to those skilled in the art. Printing techniques, known to those skilled in the art, also allow the assembly of mixed tints before deposition on the substrate, but also superimposed on the substrate - as encountered in four-color process - which has to effect an unlimited range of color shades in the inscriptions and graphic forms obtained on the substrate.
Selon une autre solution, on utilise une encre délibile noire et/ou à base aqueuse, disponible chez les fabricants d'encre, pour réaliser la zone de camouflage, cette encre étant déposée avec des technologies d'impression traditionnelles, bien connues de l'homme de l'art.According to another solution, a black and / or aqueous based ink, available from the ink manufacturers, is used to make the camouflage zone, this ink being deposited with traditional printing technologies, which are well known to the artist. skilled in the art.
Selon l'invention le moyen de camouflage peut être imprimé dans la zone de camouflage avec l'encre spéciale directement sur la surface du substrat de l'invention. Par contre, il est aussi possible d'imprimer du moyen de camouflage sur une étiquette adhesive et de déposer cette étiquette comme étiquette camouflage sur la surface du substrat de l'invention dans la zone de camouflage. Dans le cadre d'une réalisation du substrat de l'invention le produit décolorant est une encre désensibilisante de couche CF, telle que celle utilisée dans les technologies d'impression pour annuler les propriétés autocopiantes des papiers chimiques, et particulièrement une solution contenant les aminés ethoxyliées.According to the invention the camouflage means can be printed in the camouflage area with the special ink directly on the surface of the substrate of the invention. On the other hand, it is also possible to print camouflage means on an adhesive label and to deposit this label as a camouflage label on the surface of the substrate of the invention in the camouflage zone. In the context of an embodiment of the substrate of the invention, the bleaching product is a CF layer desensitizing ink, such as that used in printing technologies to cancel the autocopying properties of chemical papers, and particularly a solution containing the amines. ethoxyliées.
Dans le cadre d'une réalisation alternative du substrat de l'invention, le produit décolorant est un produit blanchissant tel que ceux utilisés dans les technologies de blanchiment des papiers et des textiles, et particulièrement de l'eau de javel du commerce ou des azurants optiques. L'association d'une encre spéciale obtenue par réaction CF/CB et d'une encre désensibilisante de couche CF donne de meilleurs résultats, à savoir une décoloration immédiate, totale et irréversible. Comme produit blanchissant, on peut utiliser avec avantage aussi le produit chimique suivant:In the context of an alternative embodiment of the substrate of the invention, the bleaching product is a whitening product such as those used in bleaching technologies for paper and textiles, and particularly commercial bleach or brighteners. optics. The combination of a special ink obtained by CF / CB reaction and a desensitizing ink of CF layer gives better results, namely immediate, total and irreversible discoloration. As a whitening product, it is also possible to advantageously use the following chemical product:
Nom commercial: DIRAXOW S12 de CECA (F-92062 LA DEFENSE)Trade Name: CECA DIRAXOW S12 (F-92062 LA DEFENSE)
Nom chimique: N'N'N'polyoxyethylène N suif propylène diamine (diamine de suif à 12 moles d'oxyde d'éthylène)Chemical name: N'N'N'polyoxyethylene N tallow propylene diamine (tallow diamine with 12 moles of ethylene oxide)
N° CAS: 61790-85-0CAS RN: 61790-85-0
Le substrat décolorant peut être un tampon fibreux enduit de produit décolorant. Pour décolorer l'encre spéciale utilisée pour imprimer le moyen de camouflage, on sépare le tampon du substrat et on le met en contact avec l'encre spéciale dans la zone de camouflage. Ceci a pour effet de provoquer instantanément la décoloration de l'encre spéciale, qui passe de sa couleur d'origine à une couleur beaucoup plus claire et même invisible.The bleaching substrate may be a fiber pad coated with bleaching product. To discolor the special ink used to print the camouflage means, the pad is separated from the substrate and contacted with the special ink in the camouflage area. This has the effect of instantly causing the fading of the special ink, which changes from its original color to a much lighter and even invisible color.
Dans une réalisation préférable du substrat de l'invention le produit décolorant est encapsulé dans des micro-capsules, éclatables sous pression. Le produit ainsi obtenu peut être déposé sur des lingettes (comme substrats décolorants) telles que celles utilisées dans la vie courante. Les lingettes peuvent rester à l'air libre sans que le produit décolorant, présentement encapsulé, ne perde de son efficacité. La lingette est ensuite utilisée comme tampon que l'on frotte sur l'impression décolorable, ce qui a pour effet de faire éclater les micro-capsules du produit décolorant et d'obtenir ainsi une mise en contact du produit décolorant et de l'encre spéciale, ce qui produit sa décoloration.In a preferable embodiment of the substrate of the invention, the bleaching product is encapsulated in microcapsules which can be broken off under pressure. The product thus obtained can be deposited on wipes (as bleaching substrates) such as those used in everyday life. The wipes can remain in the open air without the discolouring product, currently encapsulated, losing its effectiveness. The wipe is then used as a pad that is rubbed on the decolorizable printing, which has the effect of bursting the microcapsules of the bleaching product and thus obtaining a contact between the bleaching product and the ink special, which produces its discoloration.
Selon une autre réalisation du substrat de l'invention, les micro-capsules de produit décolorant peuvent être placées dans (par mélange) ou sur (par surimpression) une colle, tel que connu de l'homme de l'art, cette colle étant déposée sur un substrat et étant utilisée pour fixer ce substrat dans le substrat de l'invention. Simultanément cette colle est capable de décolorer les impressions. La décoloration s'obtient en appliquant ce substrat comme substrat décolorant sur la zone de camouflage en veillant à faire correspondre le produit décolorant et le moyen de camouflage, tout en appliquant une pression sur la surface supérieure non enduite de ce substrat. Ceci a pour effet de faire éclater les micro-capsules de produit décolorant et donc de décolorer l'encre spéciale.According to another embodiment of the substrate of the invention, the bleaching product microcapsules may be placed in (by mixing) or overprinting an adhesive, as known to those skilled in the art, this glue being deposited on a substrate and being used to fix this substrate in the substrate of the invention. At the same time, this glue is able to discolour impressions. Discoloration is achieved by applying this substrate as a bleaching substrate to the camouflage area, ensuring that the bleaching product and the camouflaging means are matched while applying pressure to the uncoated top surface of this substrate. This has the effect of popping the microcapsules bleaching product and thus discolor the special ink.
Dans la réalisation du substrat décolorant décrit ci-dessus, le produit décolorant est en contact avec la colle. Le défaut d'étanchéité que l'on rencontre sur une proportions des micro-capsules de produit décolorant génère une pénétration du produit décolorant dans la colle, ce qui a pour effet de désagréger celle-ci. Ensuite, l'efficacité du produit décolorant est moins élevée.In the embodiment of the bleaching substrate described above, the bleaching product is in contact with the glue. The lack of tightness that we encounter on a proportion of bleaching product micro-capsules generates a penetration of the bleaching product in the glue, which has the effect of disintegrating it. Then, the effectiveness of the bleaching product is lower.
Selon une autre réalisation du substrat décolorant il y a un substrat additionnel entre le produit décolorant et la colle pour éviter d'avoir en contact direct le produit décolorant et la colle et pour protéger la colle. Afin d'obtenir une adhérence mécanique suffisante des micro-capsules, le substrat additionel est traité sur la surface qui se trouve en contact avec les micro-capsules de produit décolorant.According to another embodiment of the bleaching substrate there is an additional substrate between the bleaching product and the glue to avoid having in direct contact the bleaching product and the glue and to protect the glue. In order to obtain sufficient mechanical adhesion of the microcapsules, the additional substrate is treated on the surface which is in contact with the microcapsules of decolorizing product.
Selon une autre réalisation du substrat décolorant la colle est déposée dans le substrat décolorant uniquement dans des bandes marginales des deux côtés d'une bande centrale avec le produit décolorant. Afin d'obtenir une adhérence mécanique suffisante des micro-capsules, le substrat décolorant est traité sur la surface de la bande centrale qui se trouve en contact avec les micro-capsules de produit décolorant.According to another embodiment of the bleaching substrate, the glue is deposited in the bleaching substrate only in marginal strips on both sides of a central strip with the bleaching product. In order to obtain sufficient mechanical adhesion of the microcapsules, the bleaching substrate is treated on the surface of the central strip which is in contact with the microcapsules of bleaching product.
Selon une autre réalisation du substrat de l'invention le substrat décolorant est collé sur une zone anti-adhérente. La zone anti-adhérente peut être formée par un substrat adhésif / antiadhérent collé sur le substrat. On forme ainsi un complexe sandwich permettant l'enfermement des micro-capsules de produit décolorant pour qu'elle ne soient pas en contact avec l'air libre. Ceci a pour effet de parer à d'éventuels problèmes d'étanchéité des micro-capsules, dont les conséquences seraient de rendre la décoloration inopérante.According to another embodiment of the substrate of the invention the bleaching substrate is adhered to a non-stick area. The non-stick area may be formed by an adhesive / non-stick substrate adhered to the substrate. Thus forming a sandwich complex for enclosing microcapsules bleaching product so that it is not in contact with the free air. This has the effect of preventing any sealing problems of the microcapsules, the consequences of which would be to make the discoloration inoperative.
Selon une réalisation préférable du substrat de l'invention; le substrat décolorant (et le substrat additionel) est (sont) transparent(s), ce qui permet d'éviter d'avoir à enlever le substrat enduit de produit décolorant de l'endroit où il a été posé pour assurer la décoloration pour constater le phénomène de décoloration par transparence, lorsque le substrat supportant les impressions n'est pas lui-même transparent.According to a preferable embodiment of the substrate of the invention; the bleaching substrate (and the additional substrate) is (are) transparent, which makes it possible to avoid having to remove the substrate coated with bleaching product from the place where it was placed to ensure the discoloration to notice the phenomenon of transparency discoloration, when the substrate supporting the prints is not itself transparent.
Selon une autre réalisation du substrat de l'invention, le substrat décolorant (et le substrat additionel) est (sont) d'une matière plastique.According to another embodiment of the substrate of the invention, the bleaching substrate (and the additional substrate) is (are) a plastic material.
Selon une autre réalisation du substrat de l'invention, la colle est une colle permanente par rapport au substrat. Employer une colle permanente permet d'assurer que le film adhésif ne pourra plus être enlevé de la zone à décolorer, ce qui constitue un obstacle supplémentaire à la falsification qui pourrait être de réimprimer avec une encre traditionnelle un moyen de camouflage en surimpression sur le substrat après avoir vu le dessin confidentiel.According to another embodiment of the substrate of the invention, the glue is a permanent glue with respect to the substrate. Using a permanent glue ensures that the adhesive film can no longer be removed from the area to be discolored, which is an additional barrier to forgery that could be reprinted with ink traditional camouflage overlay on the substrate after seeing the drawing confidential.
Suivant une réalisation préférable du substrat de l'invention, le substrat est adapté à être muni du dessin confidentiel par impression laser ou jet d'encre dans la zone de camouflage. Toutefois, le système de l'invention fonctionne également avec d'autres technologies d'imprimerie, pourvu que l'encre employée ne réagisse pas sous l'effet du produit décolorant. A titre d'exemple, les encres offset et typo UV permettent d'obtenir un résultat identique en ce qui concerne la résistance à la décoloration.According to a preferable embodiment of the substrate of the invention, the substrate is adapted to be provided with the confidential design by laser printing or inkjet in the camouflage zone. However, the system of the invention also works with other printing technologies, provided that the ink used does not react under the effect of the bleaching product. By way of example, offset and UV typography inks make it possible to obtain the same result with regard to the resistance to fading.
Le substrat peut être un document formé par exemple par une feuille de papier de format A4. L'impression du moyen de camouflage peut représenter toutes les formes graphiques imaginables: signes, caractères, trait, aplat, etc. Le dessin confidentiel est préférablement une inscription des caractères et/ou des chiffres.The substrate may be a document formed for example by a sheet of A4 paper. The impression of the camouflage means can represent all the imaginable graphic forms: signs, characters, line, solid, etc. The confidential design is preferably an inscription of the characters and / or numbers.
BREVE EXPLICATION DES FIGURESBRIEF EXPLANATION OF FIGURES
On convient ci-après d'expliquer plus précisément l'invention sur la base des exemples de réalisation en liaison avec les dessins. On voit en:Hereinafter, the invention will be explained more precisely on the basis of the exemplary embodiments in connection with the drawings. We see in:
Fig. 1 une représentation schématique d'un substrat selon l'invention avec un moyen de camouflage réalisé en encre effaçable dans une zone de camouflage;Fig. 1 a schematic representation of a substrate according to the invention with a camouflage means made in erasable ink in a camouflage zone;
Fig. 2 un procédé d'impression laser ou jet d'encre d'un dessin confidentiel dans la zone de camouflage pour une personnalisation du substrat;Fig. 2 a method of laser printing or inkjet of a confidential design in the camouflage area for customization of the substrate;
Fig. 3-5 un procédé de décoloration de l'encre dans la zone de camouflage;Fig. 3-5 a process of discolouring the ink in the camouflage zone;
Fig. 6 le substrat selon figure 5 sur laquelle le dessin confidentiel est devenue lisible;Fig. 6 the substrate according to Figure 5 on which the confidential drawing has become readable;
Fig. 7 une représentation schématique d'une autre réalisation du substrat de l'invention;Fig. 7 a schematic representation of another embodiment of the substrate of the invention;
Fig. 8 sous a) - d) une représentation schématique d'une autre réalisation du substrat de l'invention;. etFig. 8 a) - d) a schematic representation of another embodiment of the substrate of the invention; and
Fig. 9 sous a) - c) une représentation schématique encore d'une autre réalisation du substrat de l'invention. MODE DE REALISATION DE L'INVENTIONFig. 9 a) - c) a further schematic representation of another embodiment of the substrate of the invention. EMBODIMENT OF THE INVENTION
A la figure 1 , on désigne par 10, un substrat qui peut être une feuille de papier de format A4 à 80 g au m2. Dans une zone de camouflage (20), de forme rectangulaire, sur la surface supérieure (11) du substrat (10) on a imprimé un camouflage (21) avec une encre spéciale effaçable.In Figure 1, there is designated by 10, a substrate which may be a sheet of paper A4 to 80 g per m 2 . In a camouflage area (20) of rectangular shape on the upper surface (11) of the substrate (10) a camouflage (21) is printed with a special erasable ink.
Près de la zone de camouflage on a déposé sur la même surface (11 ) du substrat (10) un complexe sandwich (30), qui présente un film adhésif/antiadhérent (31 ) et un film adhésif (34). Les films (31 ) et (34) sont constitués d'une matière plastique transparente comme par exemple du polyester. Les colles (32) et (35) des deux film (31) et (34) sont de façon permanente. La surface supérieure du film (32) était enduite d'un produit antiadhérent (33). Grâce à cet enduit (33) le film adhésif (34) peut être enlevé du film (31 ) tel que représenté dans la figure (3). La colle (35) du film adhésif (34) a reçu en surimpression un produit décolorant (36) encapsulé dans des micro-capsules.Close to the camouflage area is deposited on the same surface (11) of the substrate (10) a sandwich complex (30), which has an adhesive / non-stick film (31) and an adhesive film (34). The films (31) and (34) consist of a transparent plastic material such as polyester. The glues (32) and (35) of the two films (31) and (34) are permanently. The upper surface of the film (32) was coated with a release agent (33). With this coating (33) the adhesive film (34) can be removed from the film (31) as shown in Figure (3). The adhesive (35) of the adhesive film (34) is superimposed with a bleaching product (36) encapsulated in microcapsules.
Le substrat obtenu ainsi, représenté dans la figure 1 est prêt à être utilisé par des établissements financiers émetteurs pour envoyer par exemple à chaque client le code confidentiel de sa carte de crédit comme dessin confidentiel. Le préposé de l'établissement financier imprime au moyen par exemple d'une imprimante laser ou d'une imprimante jet d'encre quelque texte comme le nom et l'adresse du destinataire et, dans la zone de camouflage (20), son code confidentiel (40) tel qu'indiqué dans la figure 2. Cette dernière impression est préférablement effectuée (en positif ou en négatif) en trame de petits points de façon à ce que la surface des chiffres imprimés ne soit couverte qu'à 30%, de sorte qu'il est impossible de les lire sur le moyen de camouflage. (21). Les substrats ainsi complétés sont mis sous enveloppes et expédiés aux clients. A réception de son substrat, chaque client rend le code confidentiel (40) lisible en détachant tout d'abord le film adhésif (34) et en le collant à l'aplomb de la zone de camouflage (20) comme présenté dans les figures 3 et 4. Le client va exercer ensuite une pression sur le film (34) par frottement du film comme présenté dans la figure 5, ce qui a pour effet de faire éclater les micro-capsules de produit décolorant et d'obtenir ainsi une mise en contact du produit décolorant et d'encre spéciale de l'impression du camouflage (21 ). L'encre spéciale commence à se décolorer immédiatement, pour ensuite se décolorer très rapidement pour devenir totalement blanche, tandis que le toner ou l'encre jet d'encre du code confidentiel reste intacte. Le code confidentiel apparaît à cause de la transparence du film 34 comme présenté dans la figure 5.The substrate thus obtained, shown in FIG. 1, is ready to be used by issuing financial institutions to send for example to each customer the confidential code of his credit card as a confidential design. The agent of the financial institution prints, for example by means of a laser printer or an inkjet printer, some text such as the name and address of the recipient and, in the camouflage zone (20), his code confidential (40) as indicated in FIG. 2. This latter impression is preferably made (in positive or in negative) in weft of small dots so that the surface of the printed figures is only covered at 30%, so that it is impossible to read them on the means of camouflage. (21). Substrates thus completed are placed in envelopes and shipped to customers. On receipt of its substrate, each customer makes the confidential code (40) readable by first detaching the adhesive film (34) and sticking it in line with the camouflage zone (20) as shown in FIGS. and 4. The customer will then exert pressure on the film (34) by rubbing the film as shown in Figure 5, which has the effect of popping the microcapsules of bleaching product and thus obtain a setting contact of the bleaching product and special camouflage printing ink (21). The special ink starts to fade immediately, then fades very quickly to become totally white, while the toner or the inkjet ink of the PIN remains intact. The PIN appears because of the transparency of the film 34 as shown in Figure 5.
Dans l'exemple décrit ci-dessus le produit décolorant (36) est en contact avec la colle (35) du film adhésif (34). Le défaut d'étanchéité que l'on rencontre sur une proportion des micro-capsules de produit décolorant génère une pénétration du produit décolorant dans la colle, ce qui a pour effet de désagréger celle-ci. Ensuite, l'efficacité du produit décolorant est moins élevée (donc la décoloration est plus longue).In the example described above the bleaching product (36) is in contact with the glue (35) of the adhesive film (34). The lack of tightness that is encountered on a proportion of the bleaching product micro-capsules generates a penetration of the bleaching product in the glue, which has the effect of disintegrating it. Then, the effectiveness of the bleaching product is lower (thus the discoloration is longer).
La solution telle que détaillée dans la figure 7 permet d'éviter d'avoir en contact direct le produit décolorant (36) et la colle (35). Dans cette solution il y a un autre film polyester transparent (37) entre le produit décolorant (36) et la colle (35) pour protéger la colle (35).The solution as detailed in Figure 7 avoids having in direct contact the bleaching product (36) and the glue (35). In this solution there is another transparent polyester film (37) between the bleaching product (36) and the glue (35) to protect the glue (35).
L'utilisation d'un film polyester transparent (37) comme écran de protection de la colle (35) est une garantie de rapidité de réaction. Pour ce faire, le film (37) est traité sur la surface qui se trouve en contact avec les micro-capsules de produit décolorant (36), afin d'obtenir une adhérence mécanique suffisante des micro-capsules.The use of a transparent polyester film (37) as a glue protection screen (35) is a guarantee of rapid reaction. To do this, the film (37) is treated on the surface which is in contact with the microcapsules of bleaching product (36), in order to obtain a sufficient mechanical adhesion of the microcapsules.
Dans le cadre d'une autre réalisation de l'invention et telle que détaillée dans la figure 8 on a imprimé un moyen de camouflage (21) dans une zone de camouflage d'un substrat (10) et on colle un complexe sandwich (30) (comme le complexe sandwich (30) de la figure 1 par exemple) au verso du substrat (10) à l'aplomb de la zone de camouflage (20). Ensuite on réalise une pré-découpe 50 de la zone de camouflageIn the context of another embodiment of the invention and as detailed in FIG. 8, a camouflage means (21) is printed in a camouflage zone of a substrate (10) and a sandwich complex (30) is glued. ) (as the sandwich complex (30) of Figure 1 for example) on the back of the substrate (10) in line with the camouflage zone (20). Then we perform a pre-cut 50 of the camouflage area
(21 ). Le préposé de l'établissement financier imprime au moyen d'une imprimante laser ou d'une imprimante jet d'encre par exemple un code confidentiel (40) dans la zone de camouflage (21). Le client rend le code confidentiel lisible en tout d'abord découpant la pré-découpe du substrat et la retournant dans sa cavité au sens inverse. C'est possible parce que la surface inférieure du film (31) était enduite d'un produit anti-adhérent (33). Enfin le client va exercer par frottement une pression sur le film (34) e qui a pour effet de faire éclater les micro-capsules de produit décolorant (36) et d'obtenir ainsi une mise en contact du produit décolorant (36) et de l'encre spéciale de l'impression du moyen de camouflage (21 ). L'encre spéciale commence à se décolorer immédiatement. Le code confidentiel (40) apparaît à cause de la transparence du film (34).(21). The agent of the financial institution prints by means of a laser printer or an inkjet printer for example a PIN (40) in the camouflage area (21). The client makes the confidential code readable by first cutting the pre-cutting of the substrate and turning it in its cavity in the opposite direction. This is possible because the lower surface of the film (31) was coated with a release product (33). Finally the customer will exert by friction a pressure on the film (34) e which has the effect of popping the micro-capsules of bleaching product (36) and thus to obtain a contact between the bleaching product (36) and the special ink of the printing of the camouflage means (21). The special ink starts to fade immediately. The PIN (40) appears because of the transparency of the film (34).
Dans le cadre encore d'une autre réalisation de l'invention et telle que détaillée dans la figure 9 on a déposé près d'une zone de camouflage (70) sur la même surface (11) d'un substrat (10) un complexe sandwich (60), qui présente un film adhésif/antiadhérent (61) et un film adhésif (64), Les films (61) et (64) sont constitués d'une matière plastique transparente comme par exemple du polyester. Les colles (62) et (65) des deux film (61 ) et (64) sont de façon permanente. La surface supérieure du film (62) était enduite d'un produit anti-adhérent (63). Grâce à cet enduit (63) le film adhésif (64) peut être enlevé du film (61 ) de même manière tel que représenté dans la figure (3).In the context of another embodiment of the invention and as detailed in Figure 9, a camouflage zone (70) is deposited on the same surface (11) of a substrate (10). sandwich (60), which presents a film adhesive / non-stick (61) and an adhesive film (64), the films (61) and (64) are made of a transparent plastic material such as polyester. The adhesives (62) and (65) of the two films (61) and (64) are permanently. The upper surface of the film (62) was coated with a release product (63). With this coating (63) the adhesive film (64) can be removed from the film (61) in the same way as shown in Figure (3).
Comme présenté sous b) dans la figure 9 la colle (65) du film adhésif (64) est déposée dans ce film (64) uniquement dans des bandes marginales (68) des deux côtés d'une bande centrale (69) avec le produit décolorant (66). Cette solution permet aussi, comme la solution telle que détaillée dans la figure 7, d'éviter d'avoir en contact direct le produit décolorant (66) et la colle (65). Cette solution a aussi l'avantage que le complexe sandwich (60) peut être produit en forme continue sans déchet.As shown in b) in FIG. 9 the glue (65) of the adhesive film (64) is deposited in this film (64) only in marginal strips (68) on both sides of a central strip (69) with the product bleaching agent (66). This solution also allows, as the solution as detailed in Figure 7, to avoid having in direct contact the bleaching product (66) and the glue (65). This solution also has the advantage that the sandwich complex (60) can be produced in continuous form without waste.
A la figure 9 on a déposé en outre dans la zone de camouflage (70) une étiquette adhesive (73) ) sur la surface (11) du substrat (10). L'étiquette adhesive (73) présente un substrat (74) par exemple en matière de papier. La cohésion du substrat est coisit préférablement moins forte de l'adhésion d'un film adhésif usuel vis-à-vis la surface de ce substrat, en particulier moins de 1.5 Newton (mesuré par la méthode Finat no.1). La colle (75) de l'étiquette adhesive (71) est de façon permanente. Comme aussi présenté sous c) dans la figure 9 on a imprimé sur la surface supérieure de l'étiquette adhesive (73) un camouflage (71) avec une encre spéciale effaçable. Cette solution a l'avantage que l'encre effaçable ne doit pas être imprimée directement sur le substrat (10) mais qu'elle peut être imprimée préalablement par un établissement spécialisé.In Figure 9 there is further deposited in the camouflage area (70) an adhesive label (73) on the surface (11) of the substrate (10). The adhesive label (73) has a substrate (74), for example made of paper. The cohesion of the substrate is preferably less strong than the adhesion of a conventional adhesive film to the surface of this substrate, in particular less than 1.5 Newton (measured by Finat method no.1). The adhesive (75) of the adhesive label (71) is permanently. As also shown in c) in FIG. 9, a camouflage (71) with a special erasable ink is printed on the upper surface of the adhesive label (73). This solution has the advantage that the erasable ink must not be printed directly on the substrate (10) but can be printed beforehand by a specialized establishment.
Dans la fabrication des substrats de l'invention comme présentés dans la figure 9 il est donc suffisant de déposer, de la même façon que le complexe sandwich (30 ou 60) par exemple, l'étiquette adhesive (73) sur la surface du substrat (10).In the manufacture of the substrates of the invention as shown in Figure 9 it is therefore sufficient to deposit, in the same way as the sandwich complex (30 or 60) for example, the adhesive label (73) on the surface of the substrate (10).
Le complexe sandwich (30 ou 60) et l'étiquette adhesive (73) peuvent être déposés en parallèle et en même temps dans le substrat (10). Pour ça c'est avantageux si les deux parts ont une extension indentique dans une dimension. Par exemple, les deux parts pourraient avoir une hauteur H indentique. Par contre et de préférence, la largeur L1 du complexe sandwich (30 ou 60) est plus grande que largeur L2 de l'étiquette adhesive (73). The sandwich complex (30 or 60) and the adhesive label (73) can be deposited in parallel and at the same time in the substrate (10). For that it is advantageous if the two parts have an independant extension in a dimension. For example, the two parts could have a height H identical. By against and preferably, the width L1 of the sandwich complex (30 or 60) is larger than the width L2 of the adhesive label (73).

Claims

REVENDICATIONS
1. Substrat (10) adapté à être muni d'un dessin confidentiel (40) par impression avec une encre normale dans une zone de camouflage (20, 70) caractérisé en ce que le moyen de camouflage (21 , 71 ) de la zone de camouflage (20, 70) est imprimé préalablement avec une encre spéciale, encre spéciale, à la différence de l'encre normale, étant effaçable de manière irréversible avec un produit décolorant (36, 66), le produit décolorant (36) étant déposé dans un substrat décolorant (34, 64), qui est lié au substrat (10) et qui peut être mis en contact avec l'encre spéciale dans la zone de camouflage (20, 70).Substrate (10) adapted to be provided with a confidential pattern (40) by printing with a normal ink in a camouflage area (20, 70) characterized in that the camouflage means (21, 71) of the area camouflage (20, 70) is pre-printed with a special ink, the special ink, unlike the normal ink, being irreversibly erasable with a bleaching product (36, 66), the bleaching product (36) being deposited in a bleaching substrate (34, 64), which is bonded to the substrate (10) and can be contacted with the special ink in the camouflage area (20, 70).
2. Substrat suivant la revendication 1 caractérisé en ce que l'encre normale est du toner d'une imprimante laser ou de l'encre d'une imprimante jet d'encre.2. Substrate according to claim 1, characterized in that the normal ink is toner of a laser printer or ink of an inkjet printer.
3. Substrat suivant la revendication 1 ou 2 caractérisé en ce que l'encre spéciale est une encre obtenue par réaction des produits autocopiants CF et CB. 3. Substrate according to claim 1 or 2 characterized in that the special ink is an ink obtained by reacting the carbonless products CF and CB.
4. Substrat suivant la revendication 3 caractérisé en ce que l'encre spéciale est une encre obtenue par réaction des produits autocopiants CF et CB dans un mélange des deux produits CF et CB réalisé à base d'une résine de phénol.4. Substrate according to claim 3 characterized in that the special ink is an ink obtained by reacting the carbonless products CF and CB in a mixture of two products CF and CB made based on a phenol resin.
5. Substrat suivant l'une quelconque des revendications 1 - 4 caractérisé en ce que l'encre spéciale est une encre délibile noire et/ou une encre à base aqueuse. 5. Substrate according to any one of claims 1 - 4, characterized in that the special ink is a black, deliberate ink and / or a water-based ink.
6. Substrat suivant l'une quelconque des revendications 1 - 5 caractérisée en ce que le produit décolorant (36, 66) est une encre désensibilisante de couche CF ou un produit blanchissant tel que ceux utilisés dans le textile ou les technologies de blanchiment des papiers, particulièrement de l'eau de javel du commerce ou des azurants optiques. 6. Substrate according to any one of claims 1 - 5 characterized in that the bleaching product (36, 66) is a CF layer desensitizing ink or a bleaching product such as those used in textile or paper bleaching technologies. , especially commercial bleach or optical brighteners.
7. Substrat suivant l'une quelconque des revendications 1 - 6 caractérisé en ce que le produit décolorant (36, 66) est encapsulé dans des micro-capsules, éclatables sous pression.7. Substrate according to any one of claims 1 - 6 characterized in that the bleaching product (36, 66) is encapsulated in microcapsules, burstable under pressure.
8. Substrat suivant l'une quelconque des revendications 1 - 7 caractérisé en ce que le substrat décolorant est un tampon fibreux enduisible de produit décolorant.. 8. Substrate according to any one of claims 1 - 7, characterized in that the bleaching substrate is a fibrous pad which can be bleached with a bleaching product.
9. Substrat suivant l'une quelconque des revendications 1 - 7 caractérisé en ce que le substrat décolorant est une lingette enduisible de produit décolorant. 9. Substrate according to any one of claims 1 - 7 characterized in that the bleaching substrate is a wipe fogging product discolorant.
10. Substrat suivant l'une quelconque des revendications 1 -7 caractérisé en ce que le substrat décolorant (34) est un film (34, 64) d'une matière plastique transparente.10. Substrate according to any one of claims 1 to 7 characterized in that the bleaching substrate (34) is a film (34, 64) of a transparent plastic material.
11. Substrat suivant l'une quelconque des revendications 1 - 7 caractérisé en ce que le produit décolorant (36) est placé par mélange dans une colle (35) ou en surimpression sur une colle (35) , la colle (35) étant utilisée pour lier le substrat décolorant (34) au substrat (10).11. Substrate according to any one of claims 1 - 7 characterized in that the bleaching product (36) is placed by mixing in an adhesive (35) or superimposed on an adhesive (35), the glue (35) being used for bonding the bleaching substrate (34) to the substrate (10).
12. Substrat suivant C 1 - 7 caractérisé en ce que le produit décolorant (36) est placé en surimpression sur une colle (35) avec un substrat additionel (37) entre le produit décolorant (36) et la colle (35), la colle (35) étant utilisée pour lier le substrat décolorant (34) au substrat (10).12. Substrate C 1 - 7 characterized in that the bleaching product (36) is superimposed on an adhesive (35) with an additional substrate (37) between the bleaching product (36) and the glue (35), the glue (35) being used to bond the bleaching substrate (34) to the substrate (10).
13. Substrat suivant l'une quelconque des revendications 1- 7 caractérisé en ce qu'une colle (65) est déposée dans le substrat décolorant (64) uniquement dans des bandes marginales (68) des deux côtés d'une bande centrale (69) avec le produit décolorant, la colle (65) étant utilisée pour lier le substrat décolorant (64) au substrat (10).Substrate according to any one of claims 1-7 characterized in that an adhesive (65) is deposited in the bleaching substrate (64) only in marginal strips (68) on both sides of a central strip (69). ) with the bleaching product, the glue (65) being used to bond the bleaching substrate (64) to the substrate (10).
14. Substrat suivant l'une quelconque des revendications 11 - 13 caractérisé en ce que la colle (35, 65) est une colle permanente par rapport au substrat (10).14. Substrate according to any one of claims 11 - 13 characterized in that the adhesive (35, 65) is a permanent adhesive relative to the substrate (10).
15. Substrat suivant l'une quelconque des revendications 1 - 14caractérisé en ce que le substrat décolorant (34,64) est collé sur une zone anti-adhérente. 15. Substrate according to any one of claims 1 - 14characterized in that the bleaching substrate (34,64) is adhered to a non-stick area.
16. Substrat suivant la revendication 15 caractérisé en ce que la zone anti-adhérente est formée par un substrat anti-adhérent (31 , 61 ) collé sur le substrat (10).16. Substrate according to claim 15 characterized in that the release zone is formed by a non-stick substrate (31, 61) adhered to the substrate (10).
17. Substrat suivant l'une quelconque des revendications 1 - 16 caractérisé en ce que le moyen de camouflage (71 ) est imprimé sur une étiquette adhesive (73), cette étiquette adhesive (73) étant déposée comme étiquette camouflage dans la zone de camouflage (70). 17. Substrate according to any one of claims 1 - 16, characterized in that the camouflaging means (71) is printed on an adhesive label (73), this adhesive label (73) being deposited as a camouflage label in the camouflage zone. (70).
EP04731074A 2003-05-28 2004-05-04 Substrate provided with a confidential pattern Expired - Lifetime EP1626651B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04731074T PL1626651T3 (en) 2003-05-28 2004-05-04 Substrate provided with a confidential pattern

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9592003 2003-05-28
PCT/IB2004/001695 WO2004106085A1 (en) 2003-05-28 2004-05-04 Substrate provided with a confidential pattern

Publications (2)

Publication Number Publication Date
EP1626651A1 true EP1626651A1 (en) 2006-02-22
EP1626651B1 EP1626651B1 (en) 2006-09-13

Family

ID=33480359

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EP04731074A Expired - Lifetime EP1626651B1 (en) 2003-05-28 2004-05-04 Substrate provided with a confidential pattern

Country Status (6)

Country Link
EP (1) EP1626651B1 (en)
AT (1) ATE339155T1 (en)
DE (1) DE602004002402T2 (en)
ES (1) ES2273253T3 (en)
PL (1) PL1626651T3 (en)
WO (1) WO2004106085A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1771307A1 (en) * 2004-07-07 2007-04-11 Fofitec AG Stock comprising a masking field for hiding a confidential information pattern
FR2937321B1 (en) 2008-10-21 2010-10-22 Rhodia Operations PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRIL FUNCTIONS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952080A (en) * 1957-09-12 1960-09-13 Teleregister Corp Cryptic grid scrambling and unscrambling method and apparatus
US4092449A (en) * 1974-10-07 1978-05-30 Bernstein Donald J Alteration-sensitive imprinted article
US5431452A (en) * 1993-08-23 1995-07-11 Wallace Computer Services, Inc. Hidden entry system and image-developing device therefor
AUPP027397A0 (en) 1997-11-07 1997-12-04 Documotion Research, Inc. Tamper-evident form for securely carrying confidential information
US20030015866A1 (en) * 2001-07-19 2003-01-23 Cioffi Mark M. Integrated optical viewer for secure documents

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004106085A1 *

Also Published As

Publication number Publication date
WO2004106085A1 (en) 2004-12-09
ES2273253T3 (en) 2007-05-01
ATE339155T1 (en) 2006-10-15
EP1626651B1 (en) 2006-09-13
DE602004002402D1 (en) 2006-10-26
DE602004002402T2 (en) 2007-09-13
PL1626651T3 (en) 2007-01-31

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