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
  • B42D25/40—Manufacture
  • B42D25/405—Marking
• • 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
  • B42D25/20—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
  • 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
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
  • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
  • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
• • B42D2035/16—

Definitions

• the present invention relates to a generation method using electronic means of a drawing of security intended to be printed on securities, including bank notes and fiduciary papers, composed of multiple lines, as well as a plate printing and value paper bearing at least a drawing generated by the implementation of the method.
• EP-A-0204 552 a safety drawing is described comprising areas formed by non-parallel lines, whose width and / or distance vary.
• the choice of particular security drawings allows cause the appearance of moiré.
• the purpose of this invention is to provide a method for generating moiré drawings when copied digital.
• the invention therefore provides a method of generation of designs based on multiple lines.
• An important advantage of the invention is the fact that it allows you to create security drawings including geometric or artistic images while so far safety drawings of this type do not include no geometric or artistic images.
• the lines of the bottom can be turned from a certain angle ⁇ partially or totally or we can turn according to this angle only the line segments at inside a contour delimiting an image.
• said lines are cut out, so interrupted inside the delimiting contour the image.
• the lines are modulated by the form (outline) of an image and we create a relief effect by known means, in particular by breaking the continuity lines.
• the width of the lines is modified according to the density of the gray of the image original geometric.
• the line segments do not contributing to the formation of an image retain their width and spacing respecting the defined r0 ratio in step c of the method.
• the width of the lines is modified according to the original digital image obtained by a scanner.
• the present invention also relates to a plate with at least one drawing generated according to one of claims 1 to 8 intended for printing of a security paper.
• the invention also relates to a security paper comprising at least one safety drawing generated according to one of claims 1 to 8.
• Figures 2 to 4 show the modification of a network of regular lines according to a variant of the invention.
• Figures 5 to 5 show the modification of a network lines according to another variant of the invention.
• ⁇ being a modulation parameter of the line width.
• N is the modulation period.
• FIG. 7 Another modification step after obtaining the figure 7 is to modify the shape of the lines while respecting the width of the lines obtained for example in the figure 4 or 7.
• FIG. 8 which is identical to figure 7 we can get the figure 9 which is formed of lines forming waves or sinusoids.
• FIG. 10 and 11 where FIG. 10 is identical to FIG. 7, one can transform these lines into concentric closed curves respecting the width of the lines in the figure 10.
• the form of this transformation of lines straight in closed curves is not limited and it depends on the desired result.
• the invention also relates to a printing plate. provided with at least one safety drawing created according to one described methods as well as a security paper provided at least one such drawing.

Landscapes

• Engineering & Computer Science (AREA)
• Computer Security & Cryptography (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Finance (AREA)
• Accounting & Taxation (AREA)
• Business, Economics & Management (AREA)
• Manufacturing & Machinery (AREA)
• Printing Methods (AREA)
• Credit Cards Or The Like (AREA)
• Burglar Alarm Systems (AREA)
• Image Processing (AREA)
• Cleaning In Electrography (AREA)
• Cash Registers Or Receiving Machines (AREA)

Applications Claiming Priority (3)

Publications (3)

Family

ID=4252223

Family Applications (1)

Country Status (10)

Cited By (10)

Families Citing this family (30)

Citations (2)

Family Cites Families (6)

• 1995
  • 1995-09-26 AU AU32866/95A patent/AU699124B2/en not_active Ceased
  • 1995-09-27 US US08/534,663 patent/US5772249A/en not_active Expired - Lifetime
  • 1995-09-28 CA CA002159414A patent/CA2159414C/en not_active Expired - Fee Related
  • 1995-10-06 AT AT95810632T patent/ATE182528T1/de active
  • 1995-10-06 EP EP95810632A patent/EP0710574B1/de not_active Expired - Lifetime
  • 1995-10-06 DE DE69511040T patent/DE69511040T2/de not_active Expired - Lifetime
  • 1995-10-25 KR KR1019950036987A patent/KR100372173B1/ko not_active Expired - Fee Related
  • 1995-10-30 RU RU95118737A patent/RU2138401C1/ru not_active IP Right Cessation
  • 1995-11-01 CN CN95116090A patent/CN1087852C/zh not_active Expired - Fee Related
  • 1995-11-01 JP JP30636195A patent/JP3996218B2/ja not_active Expired - Fee Related

Patent Citations (2)

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