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).

Landscapes

• Ink Jet Recording Methods And Recording Media Thereof (AREA)
• Credit Cards Or The Like (AREA)
• Slot Machines And Peripheral Devices (AREA)
• Adhesive Tapes (AREA)
• Pens And Brushes (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=33480359

Family Applications (1)

Country Status (6)

Families Citing this family (2)

Family Cites Families (5)

• 2004
  • 2004-05-04 ES ES04731074T patent/ES2273253T3/es not_active Expired - Lifetime
  • 2004-05-04 EP EP04731074A patent/EP1626651B1/de not_active Expired - Lifetime
  • 2004-05-04 WO PCT/IB2004/001695 patent/WO2004106085A1/fr active IP Right Grant
  • 2004-05-04 DE DE602004002402T patent/DE602004002402T2/de not_active Expired - Fee Related
  • 2004-05-04 PL PL04731074T patent/PL1626651T3/pl unknown
  • 2004-05-04 AT AT04731074T patent/ATE339155T1/de not_active IP Right Cessation

Non-Patent Citations (1)

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