Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
  • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
  • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
  • D21H21/42—Ribbons or strips
• • 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

Definitions

• the present invention relates to a security strip intended to be incorporated in part in the structure of a security document at least partially made of fibers.
• the first threads introduced into the paper were "drowned”, which means that they are trapped in the mass of the paper, being incorporated during the manufacture of the notes. They were designed so that they are invisible in reflected light and visible in transmitted light, that is to say by transparency.
• the object of the present invention is to overcome these drawbacks by proposing a strip which comprises two zones giving the illusion of being made up of two different yarns and whose particularly optical effects make its fraudulent imitation particularly complex.
• the present invention relates to a safety strip intended to be incorporated in part into the structure of a security document at least partially made of fibers, this strip emerging on the surface of said document in the form of a set of windows, and comprising a transparent or translucent support material, covered, on one of its faces, said "upper face", a visible coating by reflection, and which comprises a longitudinal strip at least partially free of said coating, which separates a first and a second son areas, covered with said coating characterized by the fact that each of said son zones respectively have two different optical renditions and / or effects reflected by reflection, and that they have negative patterns which are in register respectively with each other, that is to say, at least one pair of these patterns in registering always the same spacing pitch when repeating along said zones.
• the person who observes the security document in which this banner is integrated has the illusion of having to deal with two different threads, because they combine respectively two different renditions and / or optical effects. .
• This phenomenon is combined with the identification of the motifs contained therein. In effect, the designs and / or messages contained in these patterns are invariably positioned relative to each other. others, and “respond” via axial or central symmetries, or even by translations or complement each other.
• said longitudinal band has non-straight and / or non-parallel edges
• said coating comprises at least two layers chosen from the following: optically variable, magnetic or non-magnetic ink layer, iridescent effect ink layer, holographic layer, metal layer, opaque ink layer;
• the strip comprises, between said support material and said metal layer, a transparent layer, without optical effect, this layer having a different thickness in each of said wire zones, as well as a light absorbing layer;
• At least one black color printing and / or at least one layer obtained by vacuum deposition extend on the underside of said support material, so that it is at least partially visible by transmission;
• said strip is partially coated with an opaque or metallic layer, the covering ratio re of this strip being preferentially less than or equal to 50% of its area.
• Another aspect of the invention relates to a security document, such as a bank note, a passport or the like.
• This document is remarkable in that it incorporates a strip according to one of the characteristics identified above, which is incorporated within it, while emerging on the surface of at least one of its visible faces under the form of a set of windows.
• the underside of the strip is covered with a layer of ink of the same color as that of the material which constitutes the document.
• FIG. 1 is a partial view from above, of a security document, in this case a bank note, in which is partially incorporated a strip, the patterns that it comprises are not however integrated;
• FIGS. 2 to 4 are cross-sectional views of three embodiments of said strip (in these figures, it will be noted that, in order not to unnecessarily weigh them down, only the elements which cover the "upper" face of the support material are represented; the band);
• FIG. 5 is a view equivalent to Figure 1 of yet another embodiment of a ticket
• FIGS. 6 to 8 are top views of three other variants of the banner, the last of them showing the banner in the form of windows;
• Figures 9 to 12 are views of yet four embodiments of the strip of the invention.
• zones with different optical effects is understood to mean zones which, visually, with the naked eye and by reflection, can be differentiated from each other. These are for example areas having a color change between two shades depending on the inclination of the support or accompanied by different diffraction effects of the light. In the embodiment in which the optical effects are the same, then the renderings will be different, which then only results in different color changes within the two wires.
• the strip 1 according to the invention is shown in Figure 1 attached, partially integrated in a security document 2 which here consists of a bank note. According to a variant not shown, it could be another type of security document such as a passport.
• This security document is preferably based on cotton paper, with or without chemical pulp, cellulose-based paper or any other material containing fibers of different types and weights. It is also possible to use a hybrid support combining polymer (s) and paper.
• the strip 1 is partially incorporated in the document 2, while emerging at its surface in the form of a set of windows F.
• This strip 1 comprises a central longitudinal strip 3 which separates from one another and delimits two son areas 4 and 4 'with straight and parallel edges. This gives the observer the illusion that the "threads" are separate and independent of each other.
• each zone 4 and 4 ' is covered with a coating and each of them has optical renders E01 and E02 distributed in different regions.
• the effect E01 is for example given by a magenta color coating that switches to green, while the E02 effect is given by a green color coating that switches to blue.
• the strip according to the invention consists of a transparent or translucent support material 5, such as a plastic film.
• a transparent or translucent support material such as a plastic film.
• This is preferably polyester, for example with a thickness of about 10 ⁇ .
• On the "outer" lower face 51 of the strip ie that which is turned towards the heart of the document, paper side, it is preferentially coated with a layer of ink of the same color as the paper (by example of a thickness of about 2 ⁇ ). If this layer of ink is not applied, then at least partially the layers on the upper surface are seen. In other words, this ink has a masking function.
• an outer adhesive layer approximately 4 to 5 ⁇ m thick is affixed to the assembly, on the side of the face 51.
• the term "motif” means any design or character, whether alpha numeric or not.
• the term “negative” means that it is delimited by a different contrast zone or contour, in this case higher. In other words, this zone or contour is visually reversed with respect to the subject.
• the central strip is largely free of ink so as to delimit two distinct zones 4 and 4 '.
• zones 4 and 4 ' is applied an optically variable layer. This is achieved by printing, for example, an OVI® or SICPASTAR® ink from SICPA. Preferably, inks 4 and 4 ', inks having different optical effects will be deposited.
• the transparent parts of the strip 1 that is to say the parts devoid of opaque ink and / or metal deposition) will not have an optical effect of color change, unlike the portions of the strip in line with opaque areas.
• a thin layer 7 of a metal for example aluminum or copper (creating a mirror effect) by any known technique. deposition under vacuum, then a partial de-metallization to create negative patterns.
• a transparent layer 8, without particular optical effect is then deposited in controlled thickness, and a layer 9 'of an absorbent material of Inconel type (registered trademark). The color of the optical effect produced will depend on the thickness of this layer 8.
• an adhesive of about 2 ⁇ thick.
• a polyester film approximately 10 ⁇ m thick can be laminated in order to give the strip and its associated layers sufficient physicochemical resistance.
• a primer if necessary
• a final adhesive layer about 4 to 5 ⁇ thick is deposited to ensure proper and sufficient adhesion between the strip and the paper fibers.
• the central strip 3 devoid of coating and separating the strip into two distinct areas is printed using a second level security ink selected from fluorescence inks, phosphorescence, visible infrared etc. This impression is easily visible through the central strip 3.
• the central strip 3, devoid of optically variable material may be previously coated with an opaque layer or with a metallic type 7 itself. partially “hollowed out” of material so as to create negative M-patterns.
• partially hollowed out is meant that the coverage rate of said band is less than or equal to 50%.
• These patterns will be difficult to see in reflection but easily visible by transparency. They are arranged so that they are in perfect registration with the zones 4 and 4 'optically variable. These patterns can take various forms such as blocks, and can be arranged in a periodic and repetitive manner.
• these arrangements can create a sequence of "bar code” type automatically readable by a machine.
• the opaque black ink may also have a conductive nature of the electric current.
• the printed pattern must be continuous in the longitudinal direction of the strip on one or other of the zones 4 and 4 'to ensure electrical conductivity. This electrical conductivity can be read and detected by a sorting machine.
• FIG. 5 is visible a security strip 1 with a width of 4 mm, incorporated in windows in a banknote 2. It is coated with an optically variable ink magenta / green visible in zone 4 and green / blue in zone 4 '.
• the strip has a band 3 devoid of material, a width of 1 mm separating the strip 1 in two disjoint parallel areas 4 and 4 '. Areas devoid of material are also arranged on each of the two bands 4 and 4 'in register with each other so that they form patterns exactly opposite each other. However, we can consider the case where they are not exactly opposite, but shifted longitudinally of the same step of constant value over the entire longitudinal extent of the son areas.
• FIG 6 is visible a safety strip 1 with a width of 4 mm coated on the one hand, an optically variable green / magenta ink and on the other hand an optically variable ink magenta / green.
• the strip 1 has a band 3 devoid of material, a width of 1 mm, separating the strip 1 into two disjoint parallel areas 4 and 4 '.
• M negative units are arranged in register with each other respectively on one and the other of the zones 4 and 4 '.
• an opaque ink forms patterns M 'in negative. These patterns are arranged in sequence of repetitive blocks. This sequence is slightly visible in reflection in the surface areas of the paper and easily visible in transmission.
• a safety strip 1 consisting of two holographic zones 4 and 4 'having a diffractive effect of blue to red (through all other colors of the visible spectrum) and a diffractive effect of red to blue.
• the strip 1 has a band 3 without coating 1 mm wide, separating parallel areas 4 and 4 '. Patterns are arranged in register with each other respectively on one and the other of the zones 4 and 4 '.
• an opaque ink creates negative patterns M '. These patterns are arranged in sequence of repetitive blocks. This sequence is slightly visible in reflection in the surface areas of the paper and easily in transmission.
• Figure 8 shows another embodiment of the strip, partially integrated in the paper of a security document.
• an area 4 which has areas with a change of colors as in the previous embodiments and a zone 4 'with diffractive effect.
• the central strip 3 are printed patterns of black color (and therefore not optically variable) together forming a kind of bar code.
• the invention makes it possible to obtain a "double-wire" visual effect by using a single strip. This visual effect is authenticated by the general public.
• the strip of Figure 9 has two zones 4 and 4 'of different width, the central strip 3, with straight and parallel edges being offset with respect to the longitudinal central axis of the strip.
• Figure 11 is shown an embodiment in which the strips 4 and 4 'each have sawtooth edges, so it is the same for the central strip 3.
• the strip 4 has a metallized appearance of copper type, while the band 4 'has a metallic appearance of aluminum type.
• each band 4 and 4 'of very different shape and appearance has a metallic appearance of aluminum type whose density varies along each of the bands.
• the band 4 wider than the band 4 ', comprises multiple multicolored patterns.
• the edges of the strip 3 are formed of a succession of portions of a circle, a long circular negative, repeated in this band, part of one of these portions of a circle.

Priority Applications (8)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Cited By (7)

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Citations (5)

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• 2011
  • 2011-09-07 FR FR1157952A patent/FR2979641B1/fr active Active
• 2012
  • 2012-08-29 EP EP12750792.9A patent/EP2753753B1/fr active Active
  • 2012-08-29 BR BR112014005155-0A patent/BR112014005155B1/pt active IP Right Grant
  • 2012-08-29 KR KR1020147009220A patent/KR101943028B1/ko active IP Right Grant
  • 2012-08-29 CA CA2847021A patent/CA2847021C/fr active Active
  • 2012-08-29 AU AU2012306521A patent/AU2012306521B2/en not_active Ceased
  • 2012-08-29 PL PL12750792.9T patent/PL2753753T3/pl unknown
  • 2012-08-29 WO PCT/EP2012/066764 patent/WO2013034476A1/fr active Application Filing
  • 2012-08-29 CN CN201280043769.0A patent/CN103827391B/zh active Active
  • 2012-08-29 RU RU2014113306A patent/RU2614683C2/ru active
• 2014
  • 2014-03-04 ZA ZA2014/01633A patent/ZA201401633B/en unknown

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