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
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
  • B42D25/369—Magnetised or magnetisable materials
• • 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
• • 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
  • B42D25/40—Manufacture
• • 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
  • B42D25/40—Manufacture
  • B42D25/475—Cutting cards
• • 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
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/465—Associating two or more layers using chemicals or adhesives
  • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives

Definitions

• the present invention relates to a method of manufacturing an electronic document, and more particularly an electronic document comprising a hidden magnetic strip. It also relates to the electronic document obtained by such a process.
• the magnetic stripe (which is usually black) is applied to a backing (which is usually white), then a masking layer is applied over the magnetic stripe to reduce the loss. contrast between the black of the magnetic strip and the white of the support.
• the masking layer often corresponds for example to a gray layer, for example by a layer produced by printing a silver ink.
• Document DE 102006 023084 A1 describes a document, such as a credit card, which has a magnetic layer on one of its surfaces, and a reflective, non-electrically conductive layer placed over the magnetic layer. However, a decoration is generally made on the document surface.
• the decor often includes a base layer, generally white, on which the patterns or illustrations are made.
• the magnetic tape is then found not only under the masking layer, but also under the decoration. However, the more the magnetic tape is covered, the more the quality of the response of the magnetic tape is attenuated.
• One possibility to improve this drawback is to use a magnetic tape of higher amplitudes, which can for example be obtained by a particular physical structure.
• a magnetic tape of higher amplitudes which can for example be obtained by a particular physical structure.
• the effectiveness of a magnetic tape in an electronic document depends not only on the amplitudes of the magnetic tape, but also on the thickness of the various layers that cover the magnetic tape.
• an objective of the present invention is to overcome at least in part the aforementioned drawbacks, while also being able to lead to other advantages.
• a method of manufacturing an electronic document comprising a hidden magnetic strip comprising:
• a step of providing a surface of an electronic document body A step of applying a magnetic tape to at least part of the surface of an electronic document body, an apparent surface, formed by the surface of the body covered at least in part by the magnetic tape, having a DeltaE contrast equal to or less than 15, or even 10; and
• the magnetic strip is thus located between the surface of the body and the decoration.
• the magnetic tape masks at least part of the surface of the body. A part of the surface of the body which is not masked is then a complementary part of the masked part.
• the visible surface is then formed by the magnetic strip and the complementary part.
• the DeltaE contrast then mainly relates to a demarcation between a color of the magnetic strip, called the first color, and a color of the surface of the electronic document body on which the magnetic strip is applied, called the second color.
• the magnetic tape covers the entire surface of the body.
• the step of applying the magnetic tape to at least part of the surface of the body then involves applying the magnetic tape to the entire surface of the body.
• the visible surface is formed only by the magnetic tape.
• the DeltaE contrast is then 0 (zero). It is then even more difficult, if not impossible, to identify a demarcation between the magnetic tape and the part of the surface of the body which is not masked.
• the DeltaE contrast is advantageously here the measure of color difference defined by the International Committee for Illumination (CIE).
• CIE International Committee for Illumination
• One method is for example described in the CIE standard of 1976: ISO 11664.
• the DeltaE, dE or even DE is defined as a measure of Euclidean distance between two colors considered in a color space.
• the formula established in 1976 by the CIE is for example: Or :
• Visible domain wavelengths here refer to wavelengths between about 380 nm and 780 nm.
• the decoration is considered here as opaque when it presents an opacity ratio, that is to say its ability to conceal, its hiding power under medium intensity lighting, of at least 70%, or even 75%, or even 80%, or even 85%, or even 90%, or even 95%.
• the decoration is configured to present an opacity in the visible such that a demarcation between the support and the magnetic strip is concealed under normal lighting, that is to say natural lighting, or usual in a building, or that it is very difficult, if not impossible, to identify whether the magnetic tape covers the entire surface.
• a magnetic tape can be visually detected because of two effects, the contrast with the body surface, or the difference in brightness.
• the opacity of the decoration and the DeltaE contrast thus form here an adjustable couple to obtain the desired masking of the magnetic strip.
• the higher the DeltaE contrast the more opaque the decoration must be. Conversely, the lower the DeltaE contrast, the less opaque the decor needs to be. In other words, it can then have a relatively lower opacity, for example 75%, or even 70%.
• the allowable layer thickness above the magnetic tape can be further exploited to achieve the decoration, which allows for more varied possibilities to achieve the decoration.
• the decoration here can be formed from one or more layers.
• the stage of applying the decoration comprises at least one stage of printing at least one layer of decoration.
• the decoration can then be silver or gold, for example formed of a silver or gold print, and a white print (or another color).
• the stage of applying a decoration comprises a stage of applying a background of decoration on the surface of the body, on top of the magnetic tape.
• the magnetic strip is then placed between the backdrop and the surface of the body.
• the background is for example a layer of a solid color, for example white.
• the backdrop may include a pattern and / or be of several colors (polychrome or monochrome of several levels).
• the stage of applying a decoration comprises a stage of applying an illustration layer, possibly over the background of decoration if there is one.
• the magnetic tape is then placed between the illustration layer and the surface of the body.
• the step of applying a decoration further comprises a step of applying a protective layer, over the background and / or over the illustration layer.
• the protective layer is for example a varnish, for example a transparent varnish.
• the decoration comprises, for example, a decorative background, an illustration layer and / or a protective layer.
• the decorative background, the illustration layer and / or the protective layer are assembled beforehand, i.e. superimposed, and the decoration thus formed is applied over the magnetic tape.
• the decorative background is applied to the magnetic tape, then the illustration layer is applied to the decoration background and / or the protective layer is applied to the illustration layer or directly to the decor background.
• the decor is configured to conform to a final image.
• the inks used to obtain the desired final image will depend on the background and the illustration layer.
• the background of the decoration is less opaque, it then gives "a gray effect" (considering for example that the background of the decoration is formed by a white ink but is not very opaque, whereas the magnetic strip is generally black), then the choice of ink colors for the illustration layer will be modified to obtain the final image, i.e. the decoration of the desired opacity.
• the stage of applying the decoration comprises a stage of screen printing from a canvas having a mesh of at least 100 Ipi ("Line Per Inch"), or even 120 Ipi.
• the unit Ipi (line per inch), or Ipc ("line per cm”), is a standard unit of measurement in the field of screen printing to define the number of threads per inch, or centimeter, of the fabric used. for this type of printing.
• the step of applying the magnetic tape to at least part of the surface of the body comprises a step of printing ink on at least part of the surface of the body, the ink being configured to form the magnetic tape.
• the ink is, for example, a magnetic ink.
• the step of applying the magnetic tape to at least part of the surface of the body comprises a step of providing a tape, the tape comprising a backing and the magnetic tape, applied to the backing, and a step of transferring the magnetic tape from the tape backing to the surface of the body.
• the magnetic tape is then for example placed between the surface of the body and the support of the tape.
• the support of the tape is for example a sheet, for example a plastic sheet, for example of PET (poly (ethylene terephthalate), also designated polyethylene terephthalate), a surface of which being provided with the magnetic tape.
• PET poly (ethylene terephthalate), also designated polyethylene terephthalate
• the step of transferring the magnetic tape from the tape to the surface includes a step of laminating the tape with the surface of the body.
• Lamination can be done hot or cold with the help of an adhesive.
• the method comprises a step of providing a substrate comprising a surface of any color then a step of applying a layer of a second color on the surface of the substrate of any color, the second color layer forming the surface of the body of the document.
• the step of applying a layer of the second color to the surface of the substrate of any color includes the step of printing ink of the second color on the surface of the substrate of any color.
• all types of printing process may be suitable, for example lithography, screen printing, flexography, inkjet, or others.
• the method comprises a step of providing a substrate tinted in the mass with a second color over at least part of its thickness from an upper surface, the upper surface of the substrate tinted in the mass forming the body surface of the second color.
• an electronic document comprising a hidden magnetic strip obtained by a method as described above.
• such an electronic document comprises:
• a body comprising a surface
• the magnetic tape covers the entire surface of the body.
• the visible surface is then formed by the magnetic tape.
• the DeltaE contrast is then 0 (zero).
• the DeltaE contrast is determined between a first color of the magnetic tape and a second color of the body surface.
• the decoration comprises a decoration background.
• the backdrop is applied to the surface of the body and covers the magnetic tape.
• the background is for example a layer of a solid color, for example white.
• the backdrop may include a pattern and / or be of several colors (polychrome or monochrome of several levels).
• the decoration includes an illustration layer.
• the illustration layer is possibly applied to the backdrop.
• the decoration comprises a protective layer which is applied to the decoration background or to the illustration layer.
• the protective layer is for example a varnish, for example a transparent varnish.
• the body of the electronic document comprises a substrate comprising a surface of any color and a layer of a second color applied to the surface of the substrate of any color, the layer of second color forming the surface of the body of the document. on which the magnetic tape is applied.
• the body of the electronic document comprises a substrate tinted in the mass with a second color over at least part of its thickness from an upper surface, the upper surface of the substrate tinted in the mass forming the surface of the body of the document to which the magnetic tape is applied.
• FIG. 1 Figure 1 schematically illustrates the main steps of a traditional method of producing a document comprising a hidden magnetic strip
• FIG. 2 schematically represents a method of making an electronic document comprising a hidden magnetic strip according to an exemplary implementation of the invention
• FIG. 3 schematically represents a method of making an electronic document comprising a hidden magnetic strip covering the entire surface of the body according to another example of implementation of the invention
• FIG. 4 schematically shows, in section, an electronic document comprising a hidden magnetic strip according to an exemplary embodiment of the invention.
• Figure 1 shows the main steps of a method 10 for manufacturing an electronic document comprising a hidden magnetic strip according to the prior art.
• a method 10 typically comprises a step 11 of assembling at least one magnetic tape on a surface of an electronic document body.
• a magnetic tape is black, possibly gray, while the body of the electronic document, and a fortiori its surface to which a magnetic tape is applied, is white.
• the method then typically comprises a step 12 of applying a silver layer (ie considered gray in color), for example by screen printing), which then represents a first step to break the contrast between the body white and magnetic stripe black.
• a silver layer ie considered gray in color
• the silver layer generally has a thickness of at least 4 ⁇ m.
• the method generally comprises a step 13 of applying a layer of white color (also called a “white layer”), for example also by screen printing), which then represents a second step to reduce the contrast between the white of the layer. body and black of the magnetic strip, but in addition, this white layer serves as a background to then apply a decoration to the surface of the electronic document, as shown here in steps 14 and 15.
• a layer of white color also called a “white layer”
• this white layer serves as a background to then apply a decoration to the surface of the electronic document, as shown here in steps 14 and 15.
• the method then comprises a step 14 of applying illustrations, for example by lithography, on the background formed by the white layer; then the method comprises a step 15 of applying a varnish, for example by screen printing, to protect the illustrations.
• the resulting electronic document comprises at least two so-called “masking” layers on top of the magnetic strip, namely the silver layer (applied here in step 12) and the white layer (applied here in step 13), then the illustration layer (from step 14 here) and the varnish layer (from step 15 here).
• the set of layers applied during steps 12 to 15 generally represent a thickness of between 7 ⁇ m and 12 ⁇ m and this set tends to dampen the capabilities of the magnetic tape.
• FIG. 2 a method 20 according to an exemplary implementation of the invention is shown schematically in FIG. 2.
• the method 20 for manufacturing an electronic document comprising a hidden magnetic strip then comprises for example a step 23 of applying a magnetic strip 33 of a "first" color, for example. here in black color, on part of a surface 310 of an electronic document body (shown here in step 22), the surface 310 being of a “second” color, for example here also black in color.
• a magnetic strip 33 of a "first" color for example. here in black color
• the surface 310 being of a “second” color, for example here also black in color.
• an electronic document is cut from a sheet which may contain several series of electronic document formats (for example 24).
• the figures represent a board that can contain three series of several formats, hence the presence of three magnetic tapes 33.
• the document body then has an apparent surface 34 formed by the surface 310 of the uncovered body and by one of the magnetic tapes 33.
• a DeltaE contrast is then determined between the second color, of the surface 310 of the unmasked body, and the first color, of the magnetic strip 33.
• the DeltaE contrast is then here less than 10, or even appreciably close to zero (0).
• the method comprises for example a step 24, 25, 26 of applying a decoration 35, 36, 37 over the magnetic strip 33.
• the decoration 35, 36, 37 has a thickness of at most 10 ⁇ m and is opaque to the wavelengths of the visible domain.
• This decoration is applied by traditional printing processes, such as offset printing and screen printing.
• the single-colored layers are produced by screen printing, while the multicolored layers are produced by offset.
• the decoration comprises, for example, a decoration background 35, an illustration layer 36 and a protective layer 37.
• the method comprises a step 24 of applying a background 35 over the magnetic strip 33.
• the decorative background 35 is for example a layer of solid color, for example of white color as shown here by way of example only, it could be otherwise.
• the backdrop may include a pattern and / or be of several colors (polychrome or monochrome of several levels).
• the magnetic strip 33 is then placed between the decorative background 35 and the surface 310 of the second color of the body.
• the method also includes a step 25 of applying an illustration layer 36 over the backdrop 35.
• the decorative background 35 is then included between the magnetic strip 33 and the illustration layer 36.
• the illustration layer 36 thus shows here that three series of electronic documents are formed here, in coherence with the three magnetic tapes 33 produced on the surface 310.
• the method also includes a step 26 of applying a protective layer 37, here over the illustration layer 36.
• the protective layer 37 is for example a varnish, for example a transparent varnish.
• step 24 of applying a decorative background 35 over the magnetic strip 33 is carried out by screen printing; the step 25 of applying an illustration layer 36 over the decorative background 35 is carried out by offset; and the step 26 of applying a protective layer 37, here over the illustration layer 36, is preferably carried out by screen printing as well.
• the method comprises a step 21 of providing a substrate 31 comprising any surface of any color, here white in color, then a step 22 of applying a layer of the second color on the surface of the substrate 31 of any color, the second color layer forming the surface 310 of the document body.
• steps 21 and 22 could be grouped together by producing a substrate 31 of the second color, for example tinted in the mass, for example black.
• the process steps are identical to those of Figure 2.
• the example of Figure 3 differs from that of Figure 2 in that the magnetic strip 33 is configured to cover the entire surface of an electronic document body.
• the magnetic strip 33 covers an entire surface of the board from which the electronic document is subsequently cut.
• FIG. 4 An example of an electronic document 30 obtained at the end of a process as shown in Figure 2, or Figure 3, is shown schematically in Figure 4, in section.
• the electronic document 30 with a hidden magnetic stripe comprises: A body comprising a surface 310, of a second color,
• the surface 310 of the body covered at least in part by the magnetic strip 33 and the magnetic strip thus form an apparent surface 34 exhibiting a DeltaE contrast equal to or less than 15, or even 10.
• the magnetic strip 33 covers the entire surface 310 and the surface apparent 34 is then formed by the magnetic strip 33.
• the contrast DeltaE is then close to zero, or equal to zero.
• Decor 32 is no more than 10 ⁇ m thick and is opaque at visible domain wavelengths.
• the decor 32 includes a backdrop 35, an illustration layer 36 which is applied to the backdrop 35, and a protective layer 37 which is applied to the illustration layer 36.
• the protective layer 37 is for example a varnish, for example a transparent varnish.
• the body of the electronic document 30 comprises a substrate 31 comprising a surface of any color and a layer of the second color applied to the surface of the substrate 31 of any color, the layer of second color forming the surface 310 of the body of the document 30 on which the magnetic tape 33 is applied.
• the substrate 31 could be mass-tinted with the second color, at least over a part of its thickness from its surface forming the surface 310 of the second color.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Credit Cards Or The Like (AREA)
• Printing Methods (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=70804654

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (11)

• 2019
  • 2019-12-20 FR FR1915095A patent/FR3105089B1/fr active Active
• 2020
  • 2020-12-16 EP EP20848702.5A patent/EP4076974A1/de active Pending
  • 2020-12-16 WO PCT/FR2020/052480 patent/WO2021123625A1/fr unknown
  • 2020-12-16 JP JP2022537056A patent/JP2023507147A/ja active Pending
  • 2020-12-16 US US17/757,415 patent/US12059919B2/en active Active

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