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
• • 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
• • 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
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/29—Securities; Bank notes
• • 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
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
  • B41N1/00—Printing plates or foils; Materials therefor
  • B41N1/04—Printing plates or foils; Materials therefor metallic
  • B41N1/06—Printing plates or foils; Materials therefor metallic for relief printing or intaglio 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
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/324—Reliefs
• • 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
  • B42D25/342—Moiré effects
• • 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
• • 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
• • 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
  • B42D25/405—Marking
  • B42D25/425—Marking by deformation, e.g. embossing
• • 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
  • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
  • D21H27/02—Patterned paper
• • 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
  • D21H5/00—Special paper or cardboard not otherwise provided for
  • D21H5/02—Patterned paper
• • 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
  • B42D25/337—Guilloche patterns

Definitions

• the present invention relates to a security element for a document-value.
• E l also relates to a method of manufacturing such a security element, as well as a document-value that includes at least one such element.
• the present invention applies more particularly to a security element for a document-value such as, for example, a fiduciary document or similar.
• fiduciary document is understood to mean all documents such as bank notes, checks, bank cards or other means used to transmit a sum of money.
• Similar document is understood to mean all documents issued by a State administration to prove the identity of a person, or of his rights to drive a vehicle, such as an identity card. , a passport or a driver's license.
• This expression also refers to any type of document used to authenticate an object of value, such as, for example, a label to put on a garment.
• a label to put on a garment We also hear any document used to authenticate the payment of a tax, such as tax stamps.
• Such a security element is by nature difficult to achieve, while being easily identifiable by the public during a simple observation.
• This security element often has a relatively complex graphic design, such as line printing, guilloche, numismatic background, and so on. He employs various printing techniques, such as offset, screen printing, intaglio, flexography, typography, and so on. Of particular interest in the context of the present invention to a security element giving a moiré effect.
• moiré is a visual phenomenon of interference resulting, for example, from the superimposition of two non-parallel line networks.
• the present Applicant has found that it is possible to obtain a particularly spectacular moiré effect without necessarily having to use non-parallel networks.
• a first object of the invention relates to a security element for a document-value which consists of an initially plane support, comprising a network of lines in relief, each raised line comprising a profile, said profile comprising gradual variations in shape along a given line or from one line to another, said grating being colored, characterized in that said colored grating consists of a repetition of contiguous strips, formed of threads of at least two different colors, adjacent or contiguous, these bands having the same direction as said lines of said network.
• the same direction is meant the fact that the strips extend parallel to the lines of the network, without however excluding the situation in which a fraction of these bands extends in a different direction.
• an amplified optical effect is produced compared to that described above, and this to the naked eye. This is a first level security.
• the invention makes false notes detectable using a microscope.
• the width of said nets is such that said at least two colors can not be clearly distinguished from each other with the naked eye;
• said shape variation is periodic, such as a variation in height of the profile
• said profiles comprise at least one sidewall each defining an angle of inclination with respect to a direction normal to the network, said shape variation comprising a variation of the inclination angle of the sidewall of at least one ligand or at least one of them, lines of the grating, gradually along this line, respectively from one line to another, so as to form in light reflection, a gradient optical effect changing according to an observation angle of the element of security ;
• said profiles have a generally triangular shape, two adjacent profiles each having a peak, separated by a groove and said variation in shape consists of a variation of the position of the peak of said profiles between two adjacent grooves or a variation of the height of the Crest ;
• said grooves are parallel to said bands
• the width of said strips is substantially equal to that of the raised lines
• the width of the bands is preferably between 50 and 2000 ⁇ m, advantageously between 200 and 600 ⁇ m, even more preferentially of the order of 400 ⁇ m; the colored threads forming said strip are of the same width;
• said strips have, on at least a portion of their extent, a different orientation, so as to constitute at least one numismatic image
• a generally flat support of said colored strips is coated and deformed using a soft-printing plate, by the dry stamping technique, which has a network of engraved lines, of a shape complementary to that a line of said network.
• a second object of the invention relates to a method of manufacturing a security element as described above.
• the invention also relates to a document-value which comprises at least one element as described above.
• the security element is integrated therein or is reported there.
• this document-value is paper, fibrous material, plastic or a combination of at least two of these materials.
• FIG. 1 is a simplified top view of a document-value consisting of a banknote and comprising a security element according to a first embodiment of the invention
• FIG. 2 is a greatly enlarged top view of a portion of the security element visible in Figure 1, before it is deformed;
• FIG. 3A is a perspective view of a portion of an etching plate making it possible to obtain a security element according to a first embodiment of the invention
• FIG. 3B represents a perspective view of three contiguous lines of a network integrated with the security element, according to a first variant of an embodiment of the invention, obtained with a plate as described with reference to Figure 3A;
• FIGS. 4A and 4B are views equivalent to the preceding figures, a plate and a security element, according to a second embodiment. ;
• FIG. 5A is a top view and partial of the security element of Figure 1, after deformation
• FIGS. 5B and 5C are end and opposite views of the element of FIG. 5A;
• FIG. 5D is a partial cross-sectional view of the security element of FIG. 5A at the reference point of inflection.
• FIGS. 6 and 7 are end and perspective views respectively of a third and a fourth embodiment of the invention.
• FIG. 8 is a plan view of a numismatic printing integrated into a security element such as that of the invention.
• FIGS. 9 and 10 are very enlarged views and at different scales of a printing plate intaglio to obtain the security element that appears in Figure 3B;
• Figures 1 1 and 12 are very enlarged views and at different scales of a printing plate intaglio to obtain the security element that appears in Figure 4B.
• the bill has on at least its front face, an indication of its value referenced 10 (in this case 100), and a decoration referenced 1 1, here representing a portrait.
• a security element 12 is also visible on this bank note 1 to the left of the portrait.
• the valuable document 1, in this case the bank note, is made of paper or of fibrous material, or alternatively, of a plastic embodiment or of a combination of these materials.
• the security element 12 is either reported or integrated in the ticket.
• This security element comprises a colored network which consists of a repetition of contiguous strips 3 formed of adjacent or contiguous nets of at least two different colors.
• each strip is formed of three parallel threads 120, 121 and 122 respectively having different colors.
• the threads 120 identified by small crosses have the blue color referenced B.
• the nets 121 immediately contiguous and illustrated here by small circles have a red color referenced R.
• the pitch i.e., the width of each band
• the width of each net are respectively referenced Pi and L-i.
• the width Li of the nets 120 to 122 is such that the colors B, R and J can not be distinguished. one from the other with the naked eye. In other words, the eye perceives a combination of these colors.
• the pitch Pi is of the order of 400 ⁇ m, while the nets 120 to 122 of color forming each strip 3 are of the same width L-i.
• the security element 12 is preferentially colored by an offset type printing process.
• Figure 3 is shown partially in perspective, a plate for obtaining a first embodiment of the security element according to the invention.
• This plate comprises a network 14 'of lines 16' in relief, substantially parallel. These lines 16 'have, in cross section, a triangular shape.
• the angle of inclination 2 of the sidewall 17'B of a line 16 ' varies gradually along this line, while the angle ⁇ of inclination of the sidewall 17 ⁇ gradually changes in the opposite direction.
• the two sides 17 ⁇ and 17'B opposite two contiguous lines of the network 14 ' meet forming a groove 21' of constant depth.
• H the height of the reliefs
• L' 2 the width of the lines 16 'and 1 / 2T' the half-frequency of variation of the aforementioned angles
• this security element includes a network
• the angle? 2 of inclination of the 17B side of a line 16 gradually varies along this line, while the angle CM 17A flank inclination varies gradually in the opposite direction.
• the two sides 17A and 17B vis-à-vis two adjacent lines of the network 14 join together forming a groove 21 of constant depth.
• the plate also comprises an array 14 'of lines 16' in relief.
• Each line comprises at least flanks 17 ⁇ and 17'B defining an angle of inclination ⁇ with respect to a direction normal to the plane of the grating 14 '(this direction is shown schematically by an axis z on the Cartesian coordinate system (x), (y) ) and (z) indicated in the figures.
• each line 16 ' has a generally rectilinear shape, and the lines 16' of the grating 14 'are parallel to one another.
• the angle of inclination ⁇ of the flank 17 ⁇ of at least one line 16 'of the grating 14' varies gradually along this line 16 '.
• the angle of inclination ai of the sidewall 7A of at least one line 16 of the grating 14 varies gradually along this line 16 so as to form in light reflection a changing optical effect as a function of the observation angle of the security element 12.
• the pitch L 2 of each line is equal to the pitch Pi of the colored network of FIG. 2.
• FIG. 5A is a top view, under a microscope, of a security element integrating both a colored network and a deformed network.
• this deformation is carried out by embossing the support, in particular according to the so-called dry stamp technique, namely intaglio without ink.
• the grooves 21 which separate each line 16 are always at the same altitude and rectilinear, while the peak 20 moves in a sinusoid S whose inflection point is referenced Si.
• the eye of an observer is referenced by the numeral 15, which looks laterally at the security element under intense illumination.
• flanks are oriented orthogonally to the direction of observation, which maximizes the observed surfaces.
• the ridge masks the opposite flanks. Since this peak is periodic and moves, the colors of the threads of the bands are exposed alternately.
• the width of the bands formed of three contiguous nets measure, for example 400 ⁇ m.
• the lines of the etching plate have an identical width of 400 ⁇ m, but because of the addition of a third dimension, in this case the depth, the path for connecting the two transverse ends of said lines is increased.
• a blue thread is at the top of a ridge and that it is extended on either side of this ridge, if one moves along the cutting line, the blue net will pass gradually from one side or the other depending on the direction of movement and leave the place in the contiguous net.
• FIGS. 5B, 5C and 5D show the profiles of the deformations of two contiguous lines 16.
• each line has the shape of a right triangle whereas in FIG. in the form of an isosceles triangle.
• Figure 6 is shown another embodiment in which the reliefs of each line have an isosceles triangle-shaped section, the peak of which is moving in height in a sinusoidal progression.
• FIG. 8 is represented, within a network of color bands, an impression N of numismatic type made of a fraction of bands oriented in an arc of a circle. Together they constitute a C-shaped numismatic image.
• FIGS. 9 and 10 is a top view under an electron microscope of a printing plate in intaglio format corresponding to the embodiment of FIG. 3A. This plate is engraved in patterns complementary to those desired on the security element.
• FIGS. 11 and 12 is shown, seen from above with an electron microscope, a printing plate in intaglio mode corresponding to the embodiment of FIG. 4A.
• Period of periodic movements is between 0.5 and 50 mm, preferably between 5 and 25 mm.
• 200 microns preferably between 40 and 150 microns, particularly 100 microns.
• Width Lg of engraved plates Lg is between 50 and 2000 microns, preferably between 200 and 600 microns, particularly 400 microns.
• Embossed lines with periodic movements are not necessarily aligned transversely. They can be shifted line by line.
• the colors of the threads can accommodate 2 nd level properties (fluorescent inks, phosphorescent, infrared, thermochromic, label etc.).

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• Business, Economics & Management (AREA)
• Accounting & Taxation (AREA)
• Finance (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Credit Cards Or The Like (AREA)
• Printing Methods (AREA)
• Inspection Of Paper Currency And Valuable Securities (AREA)
• Respiratory Apparatuses And Protective Means (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=44260338

Family Applications (1)

Country Status (10)

Cited By (1)

Families Citing this family (4)

Family Cites Families (13)

• 2011
  • 2011-03-30 FR FR1152648A patent/FR2973398B1/fr active Active
  • 2011-05-06 CN CN201110116656.6A patent/CN102729673B/zh active Active
• 2012
  • 2012-03-28 RU RU2013148138/05A patent/RU2586130C2/ru active
  • 2012-03-28 AU AU2012234225A patent/AU2012234225B2/en not_active Ceased
  • 2012-03-28 PL PL12713078.9T patent/PL2691573T3/pl unknown
  • 2012-03-28 BR BR112013024902-1A patent/BR112013024902B1/pt active IP Right Grant
  • 2012-03-28 EP EP12713078.9A patent/EP2691573B1/de active Active
  • 2012-03-28 CA CA2828398A patent/CA2828398C/fr active Active
  • 2012-03-28 WO PCT/EP2012/055565 patent/WO2012130907A1/fr unknown
  • 2012-03-28 KR KR1020137028806A patent/KR101899528B1/ko active IP Right Grant

Non-Patent Citations (1)

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