Classifications

• • 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
  • G07D7/06—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 wave or particle radiation
  • G07D7/12—Visible light, infrared or ultraviolet radiation
• • 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
  • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
• • 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
  • B41M3/146—Security printing using a non human-readable pattern which becomes visible on reproduction, e.g. a void mark

Definitions

• the present invention relates to a security document with a paper or plastic substrate comprising as a security means, to guard against falsification and counterfeiting of payment documents or official documents, at least one security reason.
• the invention advocates a new technical solution to solve the problem of preventing the forgery and counterfeiting of payment documents and official documents, which is based on the use of a new security means.
• This technical solution also allows for better authentication.
• One of the aims of the invention is to propose a new security means that prevents reproduction, for example by color photocopying, of said security document.
• Another object of the invention is to also propose a new security means which makes it possible to add to said security document a certain number of information or signs which can be read in whole or in part only under particular conditions. observation or using a suitable apparatus, in particular that are not directly visible to the user under normal observation conditions.
• the idea of the Applicant is therefore to affix on the said security document a unique security motif, which combines both the property of preventing photocopying and of being readable in whole or in part only under particular conditions. observation or using a suitable apparatus.
• a first solution envisaged by the Applicant was in fact to use a pattern formed in part from substances having an interference effect.
• the iridescent substances that can be used according to the invention, mention may be made in particular of mother-of-pearl extracts, lead salts and micas.
• the preferred substances are micas, because mother-of-pearl extracts are very expensive, and lead salts imply, because of their toxicity, the respect of very strict hygiene and safety rules.
• micas coated with at least one metal oxide are recommended, and in particular the products marketed by Merck AG under the name Iriodine, these products being micas coated with TiO 2 with, where appropriate at least one other metal oxide.
• optically variable particles called “OVP” by those skilled in the art, in the form of a thin film obtained by lamination of one or more dielectric layers between one or more metal layers reflective.
• hues taken by these structures depend in fact on the constituent material of each layer, the sequence and the number of layers, the thickness of each layer as well as the production process of the film itself.
• polymeric multilayer films formed by alternating more or less reflective layers.
• the Applicant has therefore had the idea of using in the same security reason at the same time a means capable of preventing its reproduction by a process of reprography and a means capable of rendering undetectable certain information or signs of this motif in the same way. lack of adequate reading conditions.
• phosphorescent, fluorescent, infrared or radiation-sensitive substances are particularly ultraviolet, thermochromic, photochromic as well as all substances exitable by the microwave, magnetic or electric fields.
• UV-reactive substances mention may be made of pigments re-emitting in the visible during excitation at wavelengths of 365 nm or 254 nm, such as inorganic pigments or organic pigments supplied by Nemoto and Honeywell. Also exemplary are pigments re-emitting with a different color at the 2 wavelengths previously mentioned as the pigment CD R / G I from Honeywell.
• up-converter or antistoke pigments which are excited in the IR and which re-emit in the visible such as Honeywell's LUMILUX UC6 pigment.
• pigments which are excited in the UV and which re-emit in the IR such as Honeywell's IR CD 139 pigment which is excited at a wavelength close to 300 nm and re-transmits between 900 and 1000nm.
• the pigments that are excited in the IR and re-emit in the IR as Honeywell IR CD 170 pigment which is excited under a wavelength of 620nm and re-emits around 1050min.
• thermochromic substances mention may be made of the MATSUI products referenced CHROMICOLOR Aqualite AQ ink. These products are colored at room temperature and become colorless at a higher temperature. In this case, a dark color will be used instead for the thermochromic capsules exposed at ambient temperature which give, associated with the substances having an interference effect and under abnormal conditions of observation, a reinforced interference aspect.
• the underlying dark color makes the effect of variable color more clearly apparent as a function of the angle of inclination of the support produced by the substances having an interferential effect.
• thermochromic substances Under the action of temperature and, generally, reversibly, these thermochromic substances will fade, thus allowing the interference substances to present a visually different aspect.
• photochromic substances there may be mentioned for example the MATSUI products referenced PHOTOPIA AQ ink which have a reversible reaction from colorless to colored under the action of white light or W.
• Substances with an interferential effect could also be associated with substances that respond to certain stimuli, such as magnetic, electrical, electromagnetic or microwave type, by emitting a specific detectable signal by means of a suitable apparatus.
• These substances may, in particular, be metallic substances reacting to a microwave excitation, such as 316L stainless steel, so-called soft or hard magnetism substances having a characteristic response under a given magnetic field, such as, for example, the hard magnetic substances provided. by the Pyral company, or else substances having a certain conductivity in an electric field, such as very thin foaming aluminum powder of size less than 50 .mu.m provided by the company RADIUM BRONZE.
• These latter particles in view of their high reflection, could, in addition, alter the effect of varying colors produced by the interference substances under normal conditions of observation.
• the overall security pattern is a combination of a pattern formed from substances having an interference effect and a pattern formed from substances having varying optical effects depending on the observation conditions. other than an interferential effect or reacting specifically to certain stimulations.
• a simple technical solution to achieve this result is to apply on a paper or plastic substrate a layer consisting of a proportioned mixture of the two substances: the two patterns will be, in this way, completely identical and will represent the same final security pattern.
• This layer may, advantageously, be applied by printing, in particular by gravure printing or by screen printing, and will consist of a proportionate mixture of the substances reacting to certain stimulations, such as light radiation or heat, magnetic, electromagnetic or electrical stimulation, in particular. giving a luminous response visible by a human eye or detectable by a suitable device.
• certain stimulations such as light radiation or heat, magnetic, electromagnetic or electrical stimulation, in particular. giving a luminous response visible by a human eye or detectable by a suitable device.
• Another technical solution will also be to apply to the security document, successively a layer comprising substances having an interference effect, thereby forming a first security pattern, and a layer comprising substances that react to certain stimulations, such as light radiation or calorific, magnetic, electromagnetic stimulation or electrical, giving a light response visible by a human eye or detectable by a suitable device.
• certain stimulations such as light radiation or calorific, magnetic, electromagnetic stimulation or electrical
• the final pattern would be illegible, the letters or signs being half-truncated, for example.
• an external stimulation such as a rise in temperature for example, the final pattern would appear in its entirety.
• the final pattern would, in this way, have a uniform interference effect according to the first pattern, the second pattern then being invisible.
• an external stimulation such as a light emitting ultraviolet radiation for example, the second alpha-numeric type pattern would be revealed the time of the stimulation.
• the document having, for example, not undergone an intermediate operation intended to reveal the second pattern, in particular by exposure to certain stimulations of the luminous, thermochromic or photochromic type, will necessarily include a truncated barcode final pattern and, therefore, illegible at using a suitable reading device.
• the final pattern would combine a first pattern formed of alphanumeric data and a second pattern constituting a barcode.
• An object of the present invention is therefore to provide a security document, useful in particular to guard against falsification and counterfeiting of payment documents and official documents by reproduction, characterized in that it comprises as security means a reason security device (M) consisting of a first unit (M1) formed from substances having an interferential effect and a second unit (M2) formed from substances that react to certain stimulations, such as light radiation or heat stimulation, magnetic, electromagnetic, electrical or microwave type, giving a visible light response by a human eye or a specific detectable signal using a suitable apparatus, the first pattern (M1) completely or partially covering the second pattern (M2) or reciprocally.
• M reason security device
• the substances having an interferential effect are chosen from iridescent particles, in particular from the group consisting of mother-of-pearl extracts, lead salts and micas.
• the iridescent substances are micas coated with at least one metal oxide, and preferably a mica coated with TiO 2 .
• the substances having an interferential effect are formed from a thin film obtained by lamination of one or more dielectric layers between one or more reflective metal layers.
• the substances having an interferential effect are liquid crystal pigments or liquid crystals.
• the substances having an interferential effect are formed from a polymeric multilayer film, consisting of an alternation of more or less reflective layers.
• the substances that react to certain stimulations by giving a visible light response by a human eye are chosen from the group consisting of phosphorescent, fluorescent, infrared-sensitive or ultraviolet-ray, thermochromic or photochromic.
• the substances reacting to certain stimulations by giving a specific detectable signal by means of a suitable apparatus are the substances reacting with magnetic, electric, electromagnetic or microwave-type fields.
• the first pattern (M1) completely covers the second pattern (M2) or vice versa.
• the first pattern (M1) partially overlaps the second pattern (M2) or vice versa.
• the security pattern (M) is an alphanumeric pattern.
• the security pattern (M) is a code-type pattern.
• the pattern (M1) is an alphanumeric pattern and the pattern (M2) is a barcode type pattern.
• the pattern (M1) has a gloss value of greater than 12, brightness measured according to ISO 2813 using a "Gardner” type gloss meter with a measurement angle of 75 °.
• the security document is a bank note.
• Another object of the present invention is to propose a method for manufacturing a security document, as described above, characterized in that a security pattern is affixed to the substrate of said security document.
• M consisting of a first pattern (M1) formed from substances having an interferential effect and a second pattern (M2) formed from substances reacting to certain stimulations, such as light radiation or heat stimulation, magnetic, electromagnetic, electric or microwave type, giving a visible light response by a human eye or a specific detectable signal using a suitable apparatus, the first pattern (M1) totally or partially covering the second pattern (M2 ) or reciprocally.
• the units (M1) and (M2) are simultaneously applied by depositing a single layer comprising a mixture of substances having an interferential effect and substances that react to certain stimulations, such as light radiation or stimulation. heat, magnetic, electromagnetic, electrical or microwave type, giving a visible light response by a human eye or a specific signal detectable using a suitable device.
• certain stimulations such as light radiation or stimulation. heat, magnetic, electromagnetic, electrical or microwave type, giving a visible light response by a human eye or a specific signal detectable using a suitable device.
• the units (M1) and (M2) are applied separately, by successive deposition of a layer comprising substances having an interferential effect and of a layer comprising substances that react to certain stimulations, such as light radiation or heat, magnetic, electromagnetic, electrical or microwave-type stimulation, giving a visible light response by a human eye or a specific signal detectable using a suitable device, or vice versa.
• certain stimulations such as as light radiation or heat, magnetic, electromagnetic, electrical or microwave-type stimulation, giving a visible light response by a human eye or a specific signal detectable using a suitable device, or vice versa.
• the units (M1) and (M2) are applied by screen printing or by gravure printing.
• the substrate is a paper for bank note.

Landscapes

• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Animal Behavior & Ethology (AREA)
• Physics & Mathematics (AREA)
• Life Sciences & Earth Sciences (AREA)
• Credit Cards Or The Like (AREA)
• Printing Methods (AREA)
• Burglar Alarm Systems (AREA)
• Inspection Of Paper Currency And Valuable Securities (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)
• Illuminated Signs And Luminous Advertising (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=33427445

Family Applications (1)

Country Status (14)

Families Citing this family (36)

Family Cites Families (10)

• 2003
  • 2003-05-26 FR FR0306352A patent/FR2855640B1/fr not_active Expired - Fee Related
• 2004
  • 2004-05-19 EP EP04742772A patent/EP1631459B1/fr not_active Revoked
  • 2004-05-19 US US10/558,015 patent/US20080122217A1/en not_active Abandoned
  • 2004-05-19 WO PCT/FR2004/001227 patent/WO2004106078A1/fr active Application Filing
  • 2004-05-19 MX MXPA05012789A patent/MXPA05012789A/es active IP Right Grant
  • 2004-05-19 BR BRPI0410723-3A patent/BRPI0410723A/pt not_active Application Discontinuation
  • 2004-05-19 CA CA002526569A patent/CA2526569A1/fr not_active Abandoned
  • 2004-05-19 AT AT04742772T patent/ATE545515T1/de active
  • 2004-05-19 RU RU2005140544/12A patent/RU2359834C2/ru not_active IP Right Cessation
  • 2004-05-25 PE PE2004000532A patent/PE20041045A1/es not_active Application Discontinuation
  • 2004-05-26 AR ARP040101804A patent/AR044557A1/es active IP Right Grant
  • 2004-05-26 UY UY28332A patent/UY28332A1/es unknown
  • 2004-05-26 CL CL200401276A patent/CL2004001276A1/es unknown
  • 2004-05-26 GT GT200400106A patent/GT200400106A/es unknown

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