EP3142864A1 - Procédé de fabrication d'un élément de sécurité - Google Patents
Procédé de fabrication d'un élément de sécuritéInfo
- Publication number
- EP3142864A1 EP3142864A1 EP15732046.6A EP15732046A EP3142864A1 EP 3142864 A1 EP3142864 A1 EP 3142864A1 EP 15732046 A EP15732046 A EP 15732046A EP 3142864 A1 EP3142864 A1 EP 3142864A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- manufacturing
- strips
- security element
- portions
- base film
- 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
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
- 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
- B42D25/355—Security threads
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- 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
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- 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
- B42D25/378—Special inks
Definitions
- the present invention relates to security elements and valuable or security documents incorporating such elements.
- the invention relates more particularly but not exclusively to a security thread and its method of manufacture.
- Security threads are band security elements that are often used in banknotes to help make counterfeits more difficult and to authenticate them.
- Such wires are for example described in the documents WO2013 / 034476, EP659936, EP0400902, WO2004 / 040062, WO2007 / 036683 and WO2005 / 069231.
- WO2013 / 034476 discloses in particular two parallel strips present on the same security thread, which change appearance with the angle of observations.
- EP 1 819 525 discloses a security element comprising platelet-shaped pigments which can be oriented under the effect of a magnetic field so as to make it possible to observe, for a direction of observation substantially parallel to the orientation of the pigments, an underlying impression.
- the security element has two optically active zones whose magnetic pigments are oriented differently, so that one can observe an appearance and disappearance of the underlying patterns when the direction of observation changes.
- the security element may be in the form of a wire, cut from a base film having a plurality of parallel strips. The cutting of the son is carried out parallel to the strips, mid width thereof.
- a disadvantage of such a manufacturing method is to require a modification of the tape making equipment if the width of the wire is to be changed.
- the width of the wire can be varied.
- the realization of customization prints of the wire can be difficult.
- HP 2,372,019 A1 discloses fluorescent boards which must be visible through a fibrous layer.
- FR 2 8S6 339 A1 describes an alternation of reflective zones and optically variable diffractive zones.
- US 2013/0087060 discloses a device for subjecting a substrate carrying a magnetic pigment ink to a magnetic field of orientation of the pigment particles
- the invention aims to further improve the security elements, especially to facilitate their manufacture in different widths, and it achieves, according to a first aspect, through a method of manufacturing an elongated security element according to a longitudinal direction, for secure document, having in the longitudinal direction a succession of optically active zones, in particular optically variable zones, this method comprising the steps of:
- optically active in particular optically variable, preferably optically variable, generally parallel strips, so as to form a base film
- optically active 1 it is necessary to understand preferably optically variable, that is to say which changes appearance, especially color, gloss and or opacity, depending on the angle of observation or illumination It is preferentially the optical effect produced by one or more diffractisf elements, in particular holographic, or multilayer interferential, in particular iridescent, or color-change elements .
- the optically active zone or zones are preferably defined by magnetically oriented particles. , in particular magnetically oriented platelet pigments or “platelets.”
- the optically variable zones are, in embodiments of the invention, other than reflective mirroring effects, with a single specular reflection effect.
- this solution makes it possible, if desired, to make security elements comprising larger optically active zones, which advantageously makes it possible to accentuate the optical effects.
- having wider security threads can facilitate their personalization, including printing.
- the security element may be integrated into a fibrous substrate of a document, or serve as a transfer element for depositing optically active structures on a document, this transfer is carried out hot and under pressure for example, thanks to the fact that the strips are then removably carried by the substrate of the base film.
- the optically active bands may comprise first bands alternating with second bands in the cutting direction, the first and second bands having distinct aspects and / or optical effects when observed simultaneously in at least one observation direction. This provides a security element with optical properties that alternate when traversed in the direction of cutting. The appearance may change, depending on how the bands are made, when the viewing direction is rotated about an axis that is parallel to or alternatively perpendicular to the bands.
- the first and second strips can be made in such a way that:
- the first bands and the second bands have different aspects
- the first and second strips in a second direction of observation different from the first, have each changed appearance and the first bands have a different appearance than the second bands.
- the first and second strips can be made in such a way that:
- the first bands appear of a first aspect, appearing in particular colored, reflective, transparent, semi-transparent or matte
- the second bands appear of a second aspect, different the first aspect, appearing in particular colored, reflective, opaque, transparent, semi-transparent or matte
- the first bands appear with the second aspect and the seconds with the first aspect.
- first transparent or semi-transparent appearance and second opaque appearance A so-called “flip-flop” effect is thus obtained, for example with a luminous "extinction" of substantially half of the surface of the security element when it is observed in reflected light in a certain direction of observation, and reversing the extinction to the other areas of the security element when changing enough direction of observation.
- the first and second viewing directions form, for example, an angle of at least 60 ° between them, in particular between 80 and 100 °, preferably a right angle, and are preferably contained in a plane perpendicular to the cutting direction. of the base film. Alternatively, they are included in a plane comprising the cutting direction of the base film and perpendicular to the base film.
- the optically variable bands preferably comprise magnetically oriented pigments.
- These pigments are, for example, pigments as described in applications EP 1 819 525 or WO 2012/176169 A1.
- the strips can be made by printing, using such oriented pigments.
- the pigments can be deposited by successive passes on the substrate. The latter can be flipped between the passes, which is a simple and effective way to orient the pigment particles differently.
- the magnetically oriented pigments within the same band may have substantially all the same orientation.
- the pigments of two adjacent bands on the base film may have different orientations, for example symmetrical orientations on either side of a median plane perpendicular to the substrate and the strips or to the cutting direction.
- the base film may comprise at least one pattern and / or one luminescent layer which is superimposed at least partially on at least one of the strips, especially when these strips are produced using oriented pigments, and which then becomes visible when one observes in a direction substantially parallel to the direction of orientation of the pigments.
- the pattern or the luminescent layer which is superimposed on the pigments is masked and not visible.
- Each band may also comprise a lenticular network, in particular a network comprising convex lenses, in particular substantially hemispherical lenses.
- the lenses of the lenticular network make it possible to observe or not, depending on the angle of observation, at least one underlying pattern element.
- An example of a lenticular array that may be suitable is described in the application WO2012085773.
- the optically active areas of the security element may be oblique, each zone preferably having an inclination with respect to the longitudinal direction of the security element of between 30 and 90 ° (excluded terminal), better still between 60 and 90 ° (excluded terminal), the inclination being obtained in particular by making the strips obliquely on the base film and by cutting parallel to an edge of the base film or by making the strips parallel to an edge of the base film and cutting in an oblique direction relative to this edge.
- Each optically active zone may thus have a median axis which makes an angle of between 30 and 90 °, more preferably 60 and 90 °, with respect to the longitudinal direction of the security element.
- the width of the optically active strips may be between 1 and 10 mm, better between 2 and 5 millimeters.
- the security element that is cut may be the same width as the strips, or be wider or smaller.
- the bands may or may not have the same width.
- Two adjacent bands may be separated by an interval.
- the substrate can then carry a security element visible at least partially in said gap.
- the spacing between two optically active strips may still be substantially the same on the base film.
- the spacing between two optically active strips is for example between 0.1 and 3 mm, better between 0.4 and 1 mm. This spacing may be less than the width of the strips, better represent between 1/20 and 1 ⁇ 4 of their width.
- This security can be present on the substrate on the same side thereof as the strips, or alternatively on the opposite side, and be at least partially visible in reflected light, or in transmitted light if necessary, because of the transparency of the substrate.
- a security element according to the invention can thus have an additional security of first, second or third level.
- First-level security means security that is detectable by the naked eye, in daylight or artificial light, without the use of a particular device. This is for example a security made between the strips or the side opposite the strips, on the base film, for example by printing or metallization / demetallization.
- These safeties comprise, for example, tracers in the form of active materials, particles or fibers capable of generating a specific signal when these tracers are subjected to optronic, electrical, magnetic or electromagnetic excitation.
- These securities are said to be third level. This is for example a magnetic strip extending parallel to the strips, and for generating a magnetic coding.
- the base film may comprise, in particular between two strips and / or at least partially superimposed on at least one of the strips, on the side of the same face of the substrate as the strips or the opposite side:
- the width of the cut security element is for example between 1 and 10 mm, better between 3 and 5 mm. This width can be constant, with parallel and straight edges.
- the security element is preferably a security thread, intended to be integrated into a document and to extend from one edge of this document to the opposite edge.
- the wire can be integrated in window (s).
- the security element is thus different from a fiber or a board.
- the security element can still be a patch or a movie. It is preferably an element extending between at least two edges of the secure document, such as a security thread or a film. In the case of a security thread, it is more preferably a wire introduced into window (s).
- the security element can be introduced in window (s) within the secure document or applied by transfer to the secure document, in particular by lamination or hot transfer. It is preferably a security element introduced into window (s).
- the substrate of the base film is preferably synthetic, of thermoplastic material, preferably polyethylene terephthalate or polyester.
- the substrate is preferably transparent, and more preferably colorless.
- Each strip made on the base film can be continuous or discontinuous in the direction of its length, and be of homogeneous appearance or not along its entire length.
- Each band may comprise a succession of portions having distinct optical properties. This makes it possible to produce security elements with a greater number of subdivisions and to increase the diversity of the realizable patterns. Each band portion can thus constitute an optically active zone with homogeneous intrinsic properties.
- the spacing between two successive optically active portions of the strip, in the length direction thereof is for example between 0 and 10 mm.
- This spacing may be non-zero, that is to say that different portions of the band do not touch and are separated by intervals where we can see through the substrate of the base film for example.
- optically active strips being discontinuous and each formed by an alternation of portions having distinct optical properties, with an offset between two successive bands so that said portions are arranged on the film in a checkerboard arrangement, the elements can be cut according to at least one of the following ways:
- the security elements are cut by cutting at half length two successive portions of a band
- the security elements are cut by cutting between the successive portions of a band, or
- the security elements are cut by cutting between each pair of successive portions of a strip
- Two identical base films can be cut in two different ways from the above.
- a base film comprising discontinuous strips
- the knife can be arranged:
- each portion of each discontinuous strip or so that there is a knife between each portion of each discontinuous strip, and then one obtains security elements comprising a succession of portions of strips, all belonging to different bands, when they are traversed longitudinally, and a single portion of band when traversed transversely, so that there is a knife in the middle of each portion of each discontinuous strip, and one then obtains security elements comprising a succession of pairs of half-portions belonging to as many different bands as there are pairs of half-portions when traversed longitudinally, and two half-portions of the same band when traversed transversely,
- security elements are then obtained comprising a succession of pairs of strip portions when they are traversed longitudinally, and two portions of the same strip when traversed transversely.
- Each band portion with homogeneous optical properties is preferably of square or rectangular outline.
- the outline is more complex, and draws a pattern for example alphanumeric.
- the spacing between two portions of distinct aspects of the same strip is less than the length of a portion, and there is for example a factor of 1/20 to 1 ⁇ 4 between the spacing between two portions. and the length of these portions.
- All the optically active portions of the same band may have substantially the same length. All portions of the different strips of the base film may have substantially the same length.
- the length of a band portion is for example between 1 and 5 mm.
- the security element cut in the base film may have a width substantially corresponding to the length of a strip portion. This width can be even lower or higher.
- the strip portions preferably comprise magnetically oriented pigments.
- the magnetically oriented pigments within the same band portion then preferably have substantially all the same orientation.
- Strip portions having substantially all the same first orientation are preferably arranged alternately with other portions of strips, having substantially all the same second orientation, for example due to a longitudinal offset between the strips, so as to form a checkerboard on the base film.
- the security element can then be cut to have a width that includes one or more columns of boxes of such a checkerboard, or even has only one column of boxes.
- the different boxes of the checkerboard can be non-joined, so as to allow a cutting of the base film between the boxes.
- the security element may have a width greater than the length of a strip portion having a homogeneous appearance, so as to have different optical properties when traversing the security element in the direction of its width.
- the security element has a width sufficient to include two band portions of different aspects, or more.
- the security element is for example wide enough to accommodate at least two columns, or even three or more, the checkerboard.
- Each column can group boxes with different aspects that alternate along the security element.
- the aspects encountered on a column of boxes may be the same as those encountered on another column present on the same security element.
- the effects encountered on one column are not all found on the other columns.
- some effects encountered on cells located in the direction of the width of the element, among other boxes may be intermediate, so as to obtain, for example, more progressivity in the variation of the effects observed when the direction of the element. observation changes.
- the subject of the invention is also a base film for making a security element by cutting the base film in a machine direction, comprising:
- the optically active strips may be discontinuous and each formed by an alternation of portions having distinct optical properties, with an offset between two successive bands such that said portions are arranged on the film in a checkerboard arrangement.
- Portions of a strip may be non-joined.
- the strips may be spaced from each other in the machine direction.
- the invention further relates to the security element obtained by the method according to the invention.
- the invention also relates to an elongated security element, for secure document, having in the longitudinal direction a succession of optically active zones.
- a security element according to the invention is preferably a security thread.
- This security thread may have a succession, according to its length, of optically active areas of different aspects, including whose properties alternate. These optically active zones come from the cutting of respective strips.
- the optically active zones preferably comprise oriented magnetic pigments:
- Two optically active zones may have pigments magnets oriented differently with an appearance or disappearance of a reflection during a rotation of the element relative to the observer about a transverse axis of rotation, in particular perpendicular to the longitudinal axis of the security element.
- two optically active zones may have magnetic pigments oriented differently with the appearance or disappearance of a reflection during a rotation of the element relative to the observer about an axis of rotation parallel to the axis. longitudinal section of the security element.
- a segment of 12 to 15 mm along the wire there are at least two zones of different aspects, and preferably 3 to S areas of different aspects, corresponding to the various aforementioned bands of the base film.
- This allows, when the wire is inserted into windows 12 to 15 mm long, a visibility on the wire of at least two optically active zones, which preferably change their appearance when the direction of observation changes, as mentioned more high
- each zone corresponding to the strip portion thus cut has an elongated shape, or possibly square, in a direction perpendicular to the wire, in particular a rectangular shape of large side perpendicular to the wire.
- Another subject of the invention is a security element comprising an alternation in the longitudinal direction of pairs of adjacent portions, having distinct optical properties, with a checkered arrangement of said portions on the wire, each portion preferably having a rectangular shape of large side parallel to the longitudinal direction of the element or alternatively perpendicular to said direction.
- the invention also relates to a secure document comprising a security element according to the invention.
- This security element is preferably a security thread inserted in window (s) in a substrate of the document, which is preferably a paperboard substrate but which can also be a synthetic substrate or a hybrid substrate comprising a paper and a plastic film.
- the substrate that receives the security element may comprise one or more paper jets.
- This substrate may advantageously comprise additional securities, which may be first, second or third level.
- “Secure document” means a valuable document, for example a means of payment, such as a bank note, a check or a restaurant ticket, a ticket of lottery, a ticket or ticket giving access to a cultural or sporting event and / or a document for the identification of persons, such as an identity card, a visa, a passport or a driving license.
- the security element preferably extends from one edge to the other of the document
- the security element is preferably visible in reflected light within at least one window of the document, as indicated above, which may have a rectangular shape, in particular with a large side perpendicular to the long sides of the document
- the length of the window measured in the direction of the length of the security element, is preferably between 12 and 15 mm.
- At least two, and preferably three to five zones of different aspects are visible, corresponding to the aforementioned bands of the base film.
- a security thread extends between the two edges of greater length of a banknote.
- the document may have a rectangular shape with long sides and the security element may be a wire that extends between these long sides.
- the subject of the invention is also a secure document comprising a security thread, in particular obtained by the implementation of a method according to the invention, presenting zones of different aspects which succeed one another in the longitudinal direction of the security thread. and which are each of elongate shape in a direction transverse to the longitudinal direction of the wire, in particular substantially parallel to the long sides of the document, these zones of different aspects or optical effects changing appearance when the direction of observation changes, with in particular a reversal of the aspects between two zones when the direction of observation changes.
- Each of these zones of different aspects may correspond to a portion of the band of the aforementioned basic film.
- FIG. 1 illustrates the realization of security elements by the implementation of an exemplary method according to the invention
- FIG. 2 is a sectional view of FIG. 1 along II-II;
- FIG. 3 represents, from the front, an example of a secure document according to the invention
- FIGS. 4 and 5 illustrate the change of appearance of the wire during a modification of the direction of observation
- FIG. 6 illustrates a variant embodiment of the base film, the zones of different aspects of which are organized in checkerboard,
- FIG. 7 is a cross-section of an exemplary security thread according to the invention.
- FIG. 8 illustrates different possibilities of cutting wires in the base film
- FIGS. 9A to 9C show schematically the wires obtained according to the cutouts of FIG. 8, and
- FIG. 10 and 1 1 show two alternative arrangements of the base film and knives, to obtain obliquely optically active areas.
- the method according to the invention implements the cutting of security elements 3 within a base film 40 in a direction of machine direction SM, as shown in dashed lines in FIG.
- the base film 40 includes a substrate 50, preferably of a thermoplastic material, such as polyester or PET.
- the thickness t of the substrate 50 is for example between 6 and 50 microns.
- the substrate 50 carries optically active bands of different aspects, which extend in a direction perpendicular to the machine direction, called the transverse direction ST.
- the substrate 50 carries on the same face a first set of spaced parallel strips 31 and a second set of spaced parallel strips 32, which alternate with the strips 31, with a constant spacing e between the first strips and the strips.
- second bands for example of the order of 0.5 mm for a band width of the order of 4 mm.
- the base film is cut transversely to the strips 31 and 32, preferably perpendicular thereto, to form a plurality of security threads 3 each comprising in the longitudinal direction an alternation of optically active zones respectively from the first and second strips .
- the strips 31 and 32 are continuous in the transverse direction ST and each of homogeneous appearance over the entire width of the base film 40.
- Each band 31 or 32 can be made with different securing means, such as pigments deposited by printing for example, and in particular platelet-shaped magnetic pigments oriented under the effect of a magnetic field.
- the orientation of the pigments can be the same, and when moving from one band to the next, the orientation of the pigments changes.
- the base film 40 is unwound a first time to pass to a printing station where the strips 31 are formed using oriented pigments 16, shown schematically in FIG. 2. Then, the base film 40 is returned and returned to the same printing station to form the strips 32 corresponding to the oriented pigments 17. Due to the overturning of the base film, the pigments 16 and 17 are oriented differently
- the film is then cut to form the security son 3 which are for example wound on multiple coils.
- Prints 11 can be carried by a face 12 of the substrate 50 opposite that receiving the strips 31 and 32, so as to form when the element 3 is viewed from the front a set of optically active zones 13 and 14 spaced parallel to the strips 31 and 32, the prints 1 1 extending below them.
- the prints 11 can be made using luminescent inks, especially fluorescent inks visible when exposed to ultraviolet radiation.
- the prints 1 1 extend for example in the form of strips of the same width as the strips 31 and 32 or, alternatively, are narrower or wider.
- the optically active zones 13 and 14 provide spaces 15 between them.
- the prints 11 may be different ink prints, depending on the bands 31 and 32 with which they are superimposed, so as to make UV appear different colors.
- the pigments 16 and 17 being oriented differently, as illustrated, for an observation direction parallel to the orientation direction of the platelets of the pigment, the underlying printing 1 1 is visible and for a different direction of observation the pigment is reflective and the underlying printing 1 1 is not visible.
- Optically active strips 31 and 32 separated by spaces 15 are thus obtained on the base film, and the change of appearance illustrated in FIGS. 4 and 5 when the observation direction is seen is for example observed on the cut wire 3. changed.
- Figure 4 for an observation direction, some areas appear dark and others clear.
- Figure S it is the opposite, depending on the orientation of the pigments relative to the observer.
- the prints 11 can be directly made on the substrate 50, as is the case in FIG. 2, or in a variant not illustrated on an intermediate layer, which can make it possible to protect the prints 11.
- the security thread obtained using the method according to the invention may comprise a multilayer support, where appropriate.
- the pigments 16 and 17 are oriented according to the axis around which the observation direction must turn in order to observe the desired change of appearance.
- the pigments are oriented, the longitudinal axis of the wire being vertical, respectively to the left and to the right, to obtain a change of appearance when turning the document parallel to this axis. We then have an alternation of appearances of the zones during this rotation.
- the pigments are oriented downwards and upwards, to obtain a change of appearance when the document is rotated about an axis perpendicular to the longitudinal axis, said perpendicular axis is preferably contained in the plane of the document There is then an alternation of appearances of the zones during this rotation.
- WO 2012/176169 A1 discloses various possible combinations between, on the one hand, oriented magnetic pigments and, on the other hand, the underlying impressions, which may represent more or less complex patterns.
- these optically active strips may comprise any means making it possible to obtain an effect of color, brightness and / or perception of a pattern, with the naked eye or under UV or IR. Preferably, it is an effect that varies with the angle of observation, such as that obtained with oriented magnetic pigments.
- FIG. 3 shows a secure document 1 according to the invention, for example a bill, which comprises a substrate 2 and a security thread 3 according to the invention, obtained by cutting the base film 40, as explained previously
- the security film 3 extends between two opposite edges 4 and 5 of the document 1, which are those of greater length.
- the security thread 3 may be incorporated at least partially in mass in the substrate 2 of the secure document 1, during the manufacture thereof, in a conventional manner. Any conventional technique of introducing a security thread into windows can be used.
- Only part of the wire 3 may be visible in reflected light, for example through one or more windows 6 formed in the substrate 2.
- Each window 6 can expose several optically variable zones 13, 14 of the wire 3.
- the substrate 2 is fibrous, comprising, for example, a mixture of natural and / or synthetic fibers, for example cellulose, flax and / or cotton fibers.
- the substrate 2 may also, alternatively, be made at least partially from a film of a plastic material, for example a bi-stretched polyolefin film such as that marketed under the name Polyart by the company ARJOBEX Ltd.
- the security element is for example applied to the surface of such a substrate, and held thereon by heat sealing and / or using an adhesive, in particular a thermo adhesive.
- the base film consists of strips 31, 32 arable substrate 50 and applied to the substrate 2 by heat transfer.
- the wire 3 or the document 1 may comprise other securities of first, second and / or third level, such as those mentioned above.
- the document 1 may in particular comprise the following additional security elements, used alone or in combination:
- thermochromic or thermochromic compounds dyes and / or pigments, in particular in printed form or mixed with at least one constituent layer of the document,
- UV absorber especially in the form coated or mixed with at least one constituent layer of the document
- a specific light-collecting material for example of the waveguide type, in particular a luminescent light-collecting material such as films polymers based on polycarbonate marketed by Bayer under the name LISA®,
- a metallized, goniochromatic or holographic foil a layer with a variable optical effect, based on interferential pigments or liquid crystals,
- a flat and relatively small security element such as a board, visible or non-visible, in particular luminescent, with or without an electronic device,
- security fibers in particular metallic, magnetic (with soft magnetism and / or hard), or absorbing, or excitable with ultraviolet, in the visible or the infrared, and in particular the near infrared (NI),
- an automatically readable security having specific and measurable luminescence characteristics (eg fluorescence, phosphorescence), light absorption (eg ultraviolet, visible or infrared), Raman activity, magnetism, microwave interaction , X-ray interaction or electrical conductivity.
- luminescence characteristics eg fluorescence, phosphorescence
- light absorption eg ultraviolet, visible or infrared
- Raman activity e.g ultraviolet, visible or infrared
- magnetism e.g., magnetism, magnetism, microwave interaction , X-ray interaction or electrical conductivity.
- At least one of the constituent layers of document 1 may comprise a first level security element such as a watermark or a pseudo-watermark.
- the security thread can be superimposed at least partially on such a watermark.
- the width w of the wire 3 is preferably greater than the width / of the strips 31 and 32, so that these form on the wire, after cutting, zones of homogeneous aspects of rectangular shape of long sides parallel to those of the document
- each strip 31 of the base film is itself subdivided into portions 71 and 73, and each strip 32 in portions 72 and 74 with a longitudinal offset chosen so that the arrangement of the different portions 71 to 74 on the base film 40 form a checkerboard.
- all portions 71 to 74 are formed with oriented magnetic pigments.
- the magnetic pigment particles within each band portion 71 to 74 all have substantially the same orientation.
- the band portions 71, 74 have substantially all the same first orientation and the band portions 72,73 have substantially all the same second orientation, so that for a given viewing direction, a checkerboard appearance is observed, the boxes change their appearance and for example go from light to dark or vice versa, when we change the direction of observation.
- the spacing d between two successive portions of the same band 31 or 32 is greater than the length g, measured in the transverse direction ST, of these.
- Each square of the checkerboard is for example of rectangular shape, with a large side parallel to the machine direction SM.
- the son 3 are for example cut according to the dashed lines of Figure 6, half width of the boxes.
- the security threads 3 cut along the machine direction SM in the base film of FIG. 6 may be sufficiently wide to integrate several columns of boxes in the direction of the width.
- the orientation of each portion belonging to the central column may be intermediate between those portions of the other columns situated on the same line and arranged on either side of them, as shown in Figure 7, so that when we change the direction of observation, there is a visual effect of transition between the different portions which is more progressive.
- the central optically active zone 14 of the wire 3 presents oriented magnetic pigments perpendicular to the substrate 50 and the optically active lateral areas 13a and 13b located on either side of the central zone 14 of the orientations respectively to the left and to the right.
- discontinuous strips with portions of different aspects arranged "checkerboard” may allow to obtain a variety of security son from the same base film, by varying the position during cutting, knives used.
- FIG. 8 illustrates three different cutout configurations of the same base film, leading to different security threads, illustrated in FIGS. 9A, 9B, and 9C, respectively.
- the first cutting configuration is obtained by positioning the knives so that, according to the lines C1, they cut each strip in the middle of a solid portion 71 and 72, or 73 and 74.
- a safety thread is then obtained. as illustrated in FIG. 9A, comprising a succession of pairs of half-portions belonging to as many respective bands when they are traversed longitudinally, and two half-portions of the same band when they are traversed transversely, according to T for example.
- the lines C2 thus pass between the portions 71 and 73 for a band 31 and between the portions 72 and 74 for a band 32.
- the second cutting configuration is obtained by positioning the knives along the lines C2 so that they cut each strip between two portions of the strip.
- the lines C2 thus pass between the portions 71 and 73 for a strip 31 and between the portions 72 and 74 for a strip 32.
- a security thread is obtained as illustrated in FIG. 9B, comprising a succession of portions each belonging to a different band when traversed longitudinally, and a single portion of band when traversed transversely, according to T for example.
- the third cutting configuration is obtained by positioning the knives along the lines C3 so that they cut each strip between two strip portions, the lines C2 being spaced apart so that there is a knife. disposed between every other portion of each band.
- the lines C3 are thus combined with one line on two of the lines C2.
- a security thread is obtained as illustrated in FIG. 9C, comprising a succession of pairs of portions belonging to as many respective bands when traversed longitudinally, and two portions of the same band when traversed transversely, according to T for example.
- safety son 3 having optically active oblique zones, each having for example a median axis oriented obliquely to the longitudinal direction of the wire.
- optically active oblique zones each having for example a median axis oriented obliquely to the longitudinal direction of the wire.
- the same result can be achieved by arranging the strips 31, 32 obliquely relative to an edge of the base film, using techniques similar to those previously described for applying the strips to the base film. A different base film is then obtained, but it is not necessary to modify the orientation of the knives: the machine direction SM can remain parallel to one of the edges of the base film, as illustrated in FIG.
- the inclination ⁇ between the central axis of the strips 31, 32 and the direction of the knives is for example between 30 and 90 ° (excluded), preferably between 60 and 90 ° (excluded).
- the bands of different aspects can be made with other means than orientable magnetic pigments.
- the bands may be made with interferential pigments, in particular goniochromatic pigments, or with lenticular networks.
- optically active strips are preferably made on the same face of the substrate.
- the strips are formed on the two opposite faces of the substrate.
- the strips 31 of the example of FIG. 1 are made on the front of the substrate and the strips 32 on the back of the substrate.
- the strips made on the base film can be of more than two kinds. For example, we have k different types of bands that follow each other in the machine direction SM, with all possible combinations between them.
- the cutting can be carried out, if necessary, with a variable width, or obliquely with respect to the strips, when they are printed obliquely with respect to the cross direction.
- transverse cutting strips a cut with an orientation not strictly parallel to the strips, preferably perpendicular to them, but can also make a non-right angle with the direction of the strips.
- the strips can be made with a variable width.
- the security thread may receive one or more impressions that extend continuously in the machine direction SM or a band having a microtext, in particular formed by metallization / demetallization.
Landscapes
- Credit Cards Or The Like (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1454418A FR3020987B1 (fr) | 2014-05-16 | 2014-05-16 | Procede de fabrication d'un element de securite. |
PCT/IB2015/053534 WO2015173753A1 (fr) | 2014-05-16 | 2015-05-13 | Procede de fabrication d' un element de securite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3142864A1 true EP3142864A1 (fr) | 2017-03-22 |
EP3142864B1 EP3142864B1 (fr) | 2022-07-27 |
Family
ID=51787014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15732046.6A Revoked EP3142864B1 (fr) | 2014-05-16 | 2015-05-13 | Procédé de fabrication d'un élément de sécurité |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3142864B1 (fr) |
FR (1) | FR3020987B1 (fr) |
PL (1) | PL3142864T3 (fr) |
WO (1) | WO2015173753A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018000920A1 (de) * | 2018-02-05 | 2019-08-08 | Giesecke+Devrient Currency Technology Gmbh | Verfahren zum Herstellen eines Sicherheitselement-Transfermaterials und Sicherheitselement-Transfermaterial |
GB201912953D0 (en) * | 2019-09-09 | 2019-10-23 | Security Fibres Uk Ltd | Manufacture of a security device |
ES2966372T3 (es) * | 2019-10-28 | 2024-04-22 | Sicpa Holding Sa | Conjuntos magnéticos y procesos para producir capas de efecto óptico que comprenden partículas de pigmento magnéticas o magnetizables, no esféricas y orientadas |
EP4232299A1 (fr) * | 2020-11-05 | 2023-08-30 | Mantegazza, Patrizia Giuseppina | Élément de sécurité magnétique et son procédé de fabrication |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0659936A2 (fr) * | 1993-12-23 | 1995-06-28 | Giesecke & Devrient GmbH | Papier de sécurité contenant un élément de sécurité en forme de fil ou de bande |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN157644B (fr) | 1981-02-19 | 1986-05-10 | Portals Ltd | |
IT1222851B (it) * | 1987-10-08 | 1990-09-12 | Mantegazza A Arti Grafici | Codice di identificazione rilevabile magneticamente per contrassegnare prodotti,documenti e simili |
GB8912750D0 (en) | 1989-06-02 | 1989-07-19 | Portals Ltd | Security paper |
US7934451B2 (en) | 2002-07-15 | 2011-05-03 | Jds Uniphase Corporation | Apparatus for orienting magnetic flakes |
GB2394696B (en) | 2002-11-01 | 2004-09-29 | Rue De Int Ltd | Improvements in security papers |
FR2856339B1 (fr) * | 2003-06-23 | 2006-05-26 | Banque De France | Bande de securisation de document, et document securise |
GB0400984D0 (en) | 2004-01-16 | 2004-02-18 | Rue De Int Ltd | Security document with threads |
EP1669213A1 (fr) | 2004-12-09 | 2006-06-14 | Sicpa Holding S.A. | Elément de sécurité avec un aspect dépendent de l'angle d'observation |
GB2430647B (en) | 2005-09-29 | 2008-09-17 | Rue De Int Ltd | Security device for security substrates |
EP2372019A1 (fr) * | 2010-04-01 | 2011-10-05 | D.W. Spinks (Embossing) Limited | Bande pour inclusion dans une pâte pendant la fabrication d'un papier sécurisé |
FR2969670B1 (fr) | 2010-12-22 | 2013-09-20 | Arjowiggins Security | Element pour document de securite comportant une structure optique |
FR2976954B1 (fr) | 2011-06-23 | 2013-07-12 | Arjowiggins Security | Fil de securite |
FR2979641B1 (fr) | 2011-09-07 | 2013-09-27 | Oberthur Technologies | Bandeau de securite et document qui en est pourvu |
FR2992255B1 (fr) * | 2012-06-22 | 2015-09-04 | Arjowiggins Security | Element de securite et document securise. |
-
2014
- 2014-05-16 FR FR1454418A patent/FR3020987B1/fr not_active Expired - Fee Related
-
2015
- 2015-05-13 PL PL15732046.6T patent/PL3142864T3/pl unknown
- 2015-05-13 WO PCT/IB2015/053534 patent/WO2015173753A1/fr active Application Filing
- 2015-05-13 EP EP15732046.6A patent/EP3142864B1/fr not_active Revoked
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0659936A2 (fr) * | 1993-12-23 | 1995-06-28 | Giesecke & Devrient GmbH | Papier de sécurité contenant un élément de sécurité en forme de fil ou de bande |
Non-Patent Citations (1)
Title |
---|
See also references of WO2015173753A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL3142864T3 (pl) | 2022-11-21 |
EP3142864B1 (fr) | 2022-07-27 |
FR3020987B1 (fr) | 2018-03-16 |
FR3020987A1 (fr) | 2015-11-20 |
WO2015173753A1 (fr) | 2015-11-19 |
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