US20120103545A1 - Laser-markable substrate, and associated manufacturing method - Google Patents

Laser-markable substrate, and associated manufacturing method Download PDF

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Publication number
US20120103545A1
US20120103545A1 US13/256,108 US201013256108A US2012103545A1 US 20120103545 A1 US20120103545 A1 US 20120103545A1 US 201013256108 A US201013256108 A US 201013256108A US 2012103545 A1 US2012103545 A1 US 2012103545A1
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United States
Prior art keywords
substrate
laser
antitampering
agent
mark
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.)
Abandoned
Application number
US13/256,108
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English (en)
Inventor
Sandrine Rancien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ArjoWiggins Security SAS
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ArjoWiggins Security SAS
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Filing date
Publication date
Application filed by ArjoWiggins Security SAS filed Critical ArjoWiggins Security SAS
Assigned to ARJOWIGGINS SECURITY reassignment ARJOWIGGINS SECURITY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RANCIEN, SANDRINE
Publication of US20120103545A1 publication Critical patent/US20120103545A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • 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
    • 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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • 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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
    • 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
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser

Definitions

  • the present invention relates to the field of laser-markable substrates, especially to security documents, in particular to security paper, and inter alia relates to a substrate yielding a colored mark under laser irradiation and the associated manufacturing method.
  • paper is understood to mean any sheet obtained by wet processing using a suspension of natural cellulose fibers and/or mineral fibers and/or plant or organic fibers other than cellulose fibers, optionally synthetic fibers, possibly containing various fillers and various additives commonly used in papermaking.
  • laser marking for example marking with an infrared laser, especially a CO 2 laser, a YAG (yttrium aluminum garnet) laser or else an Nd:YAG (neodymium-doped yttrium aluminum garnet) laser.
  • an infrared laser especially a CO 2 laser, a YAG (yttrium aluminum garnet) laser or else an Nd:YAG (neodymium-doped yttrium aluminum garnet) laser.
  • the laser marking of a standard paper substrate leads to low-contrast marks, generally having a yellow or brownish color, associated with the carbonization of the substrate during marking.
  • laser-sensitive materials such as mineral fillers, inorganic pigments including conductive pigments and/or variable optical-effect pigments such as pearl-luster silicates sold especially under the name Lazerflair® (LS range) by Merck.
  • Patent application US 2006/0090868 describes a fibrous laser-markable substrate comprising 1 to 5% absorbent materials in the form of inorganic platelets based on pearl-luster conductive pigments.
  • laser-sensitive materials based on conductive pigments, or especially variable-optical-effect or interference-effect pigments substantially improve the contrast of the marking (increasing the optical density), they do not enable the dark marking, especially the black marking, required for automatic optical recognition of marks, for example such as barcodes.
  • compositions comprising laser-sensitive materials of different nature have been developed by various companies.
  • compositions sold by Datalase under the trade name Packmark®, by Ciba under the trade name Pergamark® or else by Fujifilm Hunt Chemicals under the trade name Codestream® are known. These compositions are coated locally onto a substrate, especially a paper, and make it possible to obtain a gray or black marking on the coated substrate after laser irradiation of the coated region.
  • These compositions comprise for example a binder and an oxyanion of a multivalent metal, such as that provided in patent application WO 02/074548.
  • These compositions may also be carbohydrate-based.
  • compositions are costly to implement, especially because they must be locally applied to the substrate to be marked using an off-line method such as printing. Furthermore, these compositions are not and cannot be adapted to an on-line implementation, especially during manufacture of the paper, for example for the following reasons:
  • Patent application DE 102 32 786 describes a laser-markable material that makes it possible to obtain a marking in relief that provides a tactile effect.
  • Patent applications WO 99/16625, WO 98/48398, EP 0 308 904 and FR 2 496 936 provide in particular tamper-resistant substrates comprising laser-markable materials.
  • the markings created on said substrates are supposed to be tamper-resistant, in particular mechanically and chemically indelible.
  • a laser-markable substrate i.e. a substrate yielding a colored mark under laser irradiation, having a composition that is optimized so as to enable on-line incorporation, in particular in a paper machine, of laser-sensitive materials.
  • the invention aims to meet all or some of these needs.
  • One subject of the invention is thus a laser-markable substrate comprising at least one material able under laser irradiation to form a colored mark, and at least one antitampering agent producing a visible coloration, especially an irreversible visible coloration, when an attempt is made to chemically remove the mark, making it possible to detect said removal attempt.
  • the mark and/or the coloration may for example be visible, especially to the naked eye or using an optical magnifying device, whether under normal (visible), infrared (IR) and/or ultraviolet (UV) light.
  • the mark and/or the coloration may for example form a spot or blotch, characters, for example such as an ideogram or alphanumeric signs, a symbol, an image, an acronym, a word or a code.
  • the antitampering agent may for example be incorporated into or on the substrate during its manufacture.
  • the substrate for example by mixing it into the fibrous suspension in the case of a paper substrate or into the plastic material intended to be extruded or injection-molded in the case of a plastic substrate;
  • the antitampering agent may be incorporated on-line or off-line. Preferably it is incorporated on-line during manufacture of the substrate.
  • the antitampering agent may for example be incorporated over the entire area of the substrate or locally, for example in a continuous band or in a particular pattern.
  • the antitampering agent may for example make it possible to prevent chemical removal of the mark, produced by laser irradiation of the substrate, using at least one of the following compounds:
  • the antitampering agent may make it possible to prevent chemical removal of the mark, produced by laser irradiation of the substrate, using oxidizing agents, for example such as sodium hypochlorite.
  • oxidizing agents for example such as sodium hypochlorite.
  • the antitampering agent may be chosen from the following compounds:
  • the antitampering agent may make it possible to prevent chemical removal of the mark, produced by laser irradiation of the substrate, using strong bases, for example such as caustic soda, and/or weak bases such as for example sodium carbonate.
  • strong bases for example such as caustic soda, and/or weak bases such as for example sodium carbonate.
  • weak bases such as for example sodium carbonate.
  • the antitampering agent may be chosen from the following compounds:
  • colored indicators such as para-nitrophenol, phenolphthalein, pyranine or a xanthene derivative.
  • the antitampering agent may make it possible to prevent chemical removal of the mark, produced by laser irradiation of the substrate, using strong acids, for example such as sulfuric acid, and/or weak acids such as for example oxalic acid.
  • strong acids for example such as sulfuric acid, and/or weak acids such as for example oxalic acid.
  • the antitampering agent may be chosen from the following compounds:
  • the antitampering agent may make it possible to prevent chemical removal of the mark, produced by laser irradiation of the substrate, using polar solvents, for example such as ethanol, and/or nonpolar solvents such as for example toluene.
  • polar solvents for example such as ethanol
  • nonpolar solvents such as for example toluene
  • the antitampering agent may be chosen from dyes that are insoluble in water but soluble in oils and solvents. These dyes are especially used in the dyeing of petroleum derivatives.
  • the antitampering agent may be compatible with the adhesives used for labels, protective films or stamps.
  • the antitampering agent of said substrate is compatible with the adhesive of said adhesive substrate.
  • the antitampering agent is compatible with the adhesive of a label, a protective film, especially protecting the information-containing pages of a passport, or a stamp intended to make contact with or be applied to the substrate.
  • certain adhesives used may react with certain antitampering agents. These may be in particular certain antitampering agents that make it possible to prevent chemical removal using a nonpolar solvent.
  • a person skilled in the art may therefore find it necessary to select one or more antitampering agents so as to avoid an undesired reaction with said adhesive of a label, a protective film or a stamp intended to make contact with or be applied to said substrate, and in particular it may be necessary to avoid certain antitampering agents that make it possible to prevent chemical removal using a nonpolar solvent.
  • the substrate may for example comprise a single antitampering agent making it possible to prevent chemical removal using a plurality of removal products. It may for example comprise manganese sulfate, and preferably manganese chloride, so as to make it possible to prevent removal of the mark using bases, for example such as caustic soda, but also oxidizing agents such as sodium hypochlorite, and in both cases the appearance of a brown spot or blotch indicates the attempted removal.
  • bases for example such as caustic soda, but also oxidizing agents such as sodium hypochlorite, and in both cases the appearance of a brown spot or blotch indicates the attempted removal.
  • the substrate may also comprise a plurality of antitampering agents making it possible to prevent, respectively, chemical removal using a plurality of removal products, especially causing colors to appear indicative of each removal product.
  • It may for example comprise a thiazole derivative and a xanthene derivative so as to make it possible to prevent, respectively, chemical removal using oxidizing agents such as sodium hypochlorite, via the appearance especially of an orange spot or blotch indicative of a removal attempt, but also chemical removal using bases such as caustic soda, via the appearance especially of a blue spot or blotch indicative of a removal attempt, and finally chemical removal using acids such as sulfuric acid, via the appearance especially of a pink spot or blotch indicative of a removal attempt.
  • the invention may make it possible for a user to easily notice any attempt, using a chemical, to remove marks produced by laser irradiation on the substrate, especially by causing a color change to appear on the substrate in the location where the chemical was applied.
  • the choice of material able to form a colored mark under laser irradiation may depend on the contrast required and the wavelength of the laser irradiation used.
  • the commercially available product Micabs from Merck is a material that reacts to a marking laser that emits light at a wavelength between 100 nm and 11.5 ⁇ m.
  • a material that reacts to infrared marking lasers, especially CO 2 marking lasers, emitting light at a wavelength between 9 and 11.5 ⁇ m may in particular be chosen from the following commercially available products: Mark-it® from Engelhard, Packmark® from Datalase, Fast Mark® from Polyone, CerMark® from DMC2 or Lazerflair® from Merck.
  • the material able to form a colored mark under laser irradiation may furthermore cause a relief to be formed, especially by swelling under the effect of said laser irradiation.
  • the laser used to create a mark may be:
  • the material able to form a colored mark under laser irradiation will be chosen from derivatives of mica, or else from transition metals that provide a color change via a change of oxidation state, such as molybdates, tungstates and vanadates, and in particular octamolybdates, heptamolybdates and amine molybdates.
  • transition metals that provide a color change via a change of oxidation state
  • Such materials are especially described in international patent application WO 02/074548.
  • the material able to form a colored mark under laser irradiation may for example be incorporated into or on the substrate during its manufacture.
  • the material may be incorporated on-line or off-line. Preferably it is incorporated on-line during manufacture of the substrate.
  • the material able to form the colored mark will be incorporated into the facing composition of the substrate, especially a paper substrate.
  • the material may for example be incorporated over the entire area of the substrate or locally, for example in a continuous band or in a particular pattern. If required, said continuous band or said particular pattern may especially be respectively superposed on or covered by said continuous band or said particular pattern in which the antitampering agent has been incorporated into the substrate.
  • the material may be able to be marked by a laser such as those described above, especially a UV laser or an infrared laser, in particular a CO 2 and/or a YAG laser, inter alia.
  • a laser such as those described above, especially a UV laser or an infrared laser, in particular a CO 2 and/or a YAG laser, inter alia.
  • the material may also be able to be marked by a femtosecond laser.
  • the laser-markable material and the antitampering agent may be mixed into a single composition, especially into an ink, a lacquer or varnish, a coating composition, a facing composition, or an impregnating composition. Said composition may be incorporated using the methods described above, over the entire area of the substrate or locally, for example in a continuous band or in a particular pattern.
  • the substrate may also comprise mineral paper fillers such as for example kaolin, talc, titanium dioxide, aluminum silicate, alumina hydrate, calcined kaolin, inter alia.
  • the mineral paper fillers may be introduced into the thickness of the substrate so as to increase the opacity and improve the printability, especially the offset printability, of the substrate.
  • the choice of the mineral paper fillers used in the substrate may also influence the contrast of the marking obtained.
  • a mineral filler that is absorbent in the infrared so as to improve the contrast obtained by the laser marking.
  • alumina trihydrate and above all calcined kaolin increase the contrast of the marking produced, in particular using a CO 2 laser. It is for example possible to use calcined kaolin sold under the trade name Ansilex 93® by Engelhard.
  • the substrate may also comprise surface binders.
  • the presence of certain surface binders may also make it possible to improve the contrast.
  • the surface binders may be chosen for example from polyvinyl alcohol (PVA), starch or a latex, alone or in a mixture. These surface binders may be accompanied or not accompanied by insolubilizers and surface bonding products so as to provide the substrate with better final printability, especially offset printability.
  • PVA polyvinyl alcohol
  • starch starch
  • latex latex
  • the surface binders may be formed of PVA, especially highly hydrolyzed PVA, for example more than 94% hydrolyzed, thereby providing a high contrast, for example to markings made using a CO 2 laser.
  • the substrate may be a plastic substrate.
  • the substrate may be made of paper.
  • the substrate may for example be based on cellulose fibers (in particular cotton fibers) and/or natural organic fibers other than cellulose fibers and/or synthetic fibers, for example such as polyester fibers or polyamide fibers and/or optionally mineral fibers, for example such as glass fibers.
  • cellulose fibers in particular cotton fibers
  • natural organic fibers other than cellulose fibers and/or synthetic fibers
  • polyester fibers or polyamide fibers for example such as polyester fibers or polyamide fibers
  • optionally mineral fibers for example such as glass fibers.
  • the substrate may comprise one or more prints, for example produced by offset printing, intaglio printing, laser printing, inkjet printing, photogravure, screen printing and/or flexography, inter alia.
  • the concentration of material able to form a colored mark may lie between 0.1 and 10% by dry weight relative to the weight of the substrate, and preferably between 1 and 10%.
  • the concentration of the antitampering agent that reacts during an attempt to chemically remove the mark may lie, if necessary for each antitampering agent used, between 0.01 and 5% by dry weight relative to the weight of the substrate.
  • the substrate may comprise on each of its sides an amount of laser-sensitive material lying between 0.1 and 3 g/m 2 by dry weight.
  • the substrate may have a grammage lying between 30 and 200 g/m 2 .
  • the substrate may comprise a conventional ink or a security ink, especially fluorescent, phosphorescent, magnetic, photochromic, thermochromic or piezochromic ink, inter alia.
  • the substrate may comprise an authenticating and/or identifying security element.
  • Certain security elements can be detected with the naked eye, in visible light, without using a particular apparatus.
  • These security elements comprise for example a watermark, colored fibers or platelets, printed, metallized or holographic threads, holographic foils, or variable-optical-effect prints.
  • These security elements are called first-level security elements.
  • security element can only be detected using a relatively simple apparatus such as a lamp emitting in the ultraviolet or infrared.
  • These security elements for example comprise fibers, platelets, strips, threads or particles.
  • These security elements may or may not be visible to the naked eye, being for example luminescent under a Wood's lamp emitting at a wavelength of 365 nm.
  • These security elements are called second-level security elements.
  • Detection of yet further types of security element requires more sophisticated detection apparatus.
  • These security elements are for example capable of generating a specific signal when they are subjected, whether simultaneously or not, to one or more external sources of excitation.
  • the automatic detection of the signal makes it possible to authenticate, if required, the document.
  • These security elements for example comprise tracers that take the form of an active material, particles or fibers, capable of generating a specific signal when these tracers are subjected to optronic, electrical, magnetic or electromagnetic excitation.
  • These security elements are called third-level security elements.
  • the substrate may comprise at least one first-, second- and/or third-level security element.
  • Another subject of the invention is the use of a laser-markable substrate, as defined above, in a security document and/or a security article.
  • the security document may for example be a payment means, such as a banknote, a check, a purchase order or a meal ticket, an identity document such as an identity card or an official document such as a visa, a passport or driver's license, a lottery ticket, a travel ticket or else a ticket for entry to cultural or sporting events.
  • a payment means such as a banknote, a check, a purchase order or a meal ticket
  • an identity document such as an identity card or an official document such as a visa, a passport or driver's license, a lottery ticket, a travel ticket or else a ticket for entry to cultural or sporting events.
  • the security article may for example be chosen from a security label, packaging, especially packaging for medicinal products, foodstuffs, cosmetics, perfumes, electronic parts or spare parts, a sheet used in the field of medicine or in hospitals, especially paper used to produce sterile packaging, or else a type of paper used for art.
  • Yet another subject of the invention is a method for manufacturing a laser-markable substrate such as defined above.
  • the method may comprise a step consisting of introducing, by impregnation, especially using a size press method, or by facing, especially using a film press method, during manufacture of the substrate in a paper machine, the material able to form a colored mark under subsequent laser irradiation.
  • the marked papers were then evaluated in terms of the contrast of the laser marking using an optical-density measurement and in terms of the ability of the marking to withstand chemical removal attempts using acid, caustic soda, sodium hypochlorite, ethanol and toluene.
  • a laser-markable substrate was manufactured using a conventional paper machine and using the following formulation in accordance with the prior art.
  • a laser-markable substrate was manufactured, using a conventional paper machine, with the same formulation as above but replacing the Lazerflair® 800 with ammonium octamolybdate.
  • a laser-markable substrate was manufactured, using a conventional paper machine, with the following formulation:
  • Tests were carried out using various mineral paper fillers other than kaolin (used in formulation 2): rutile titanium dioxide (formulation 3), precipitated calcium carbonate (formulation 4), sodium aluminosilicate (formulation 5), aluminum hydroxide (formulation 6), talc (formulation 7) and calcined kaolin (formulation 8).
  • Formulation 4 Formulation 3 with with rutile precipitated Formulation 5
  • Formulation 2 titanium calcium with sodium with kaolin dioxide carbonate aluminosilicate 0.02 0.02 0.03 0.13
  • Formulation 6 Formulation 8 with aluminum
  • Formulation 7 with calcined hydroxide with talc kaolin 0.10 0.08 0.23
  • the paper manufactured according to formulation 12 had a better offset, laser and inkjet printability than that manufactured according to formulation 11.
  • a laser-markable paper substrate was manufactured according to the invention using a conventional paper machine with the following properties:
  • an attempt to remove the laser marking for example using sodium hypochlorite (12% chlorine) or a 5% sodium hydroxide solution, led to a brown colored spot or blotch appearing, indicating that an attempt had been made to tamper with the marking on the paper.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Paper (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Laser Beam Processing (AREA)
US13/256,108 2009-03-13 2010-03-15 Laser-markable substrate, and associated manufacturing method Abandoned US20120103545A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0951612 2009-03-13
FR0951612A FR2943074B1 (fr) 2009-03-13 2009-03-13 Substrat marquable au laser et procede de fabrication associe
PCT/IB2010/051110 WO2010103499A1 (fr) 2009-03-13 2010-03-15 Substrat marquable au laser et procede de fabrication associe

Publications (1)

Publication Number Publication Date
US20120103545A1 true US20120103545A1 (en) 2012-05-03

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Country Status (8)

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US (1) US20120103545A1 (pt)
EP (1) EP2406084A1 (pt)
BR (1) BRPI1009820A2 (pt)
CA (1) CA2754867A1 (pt)
FR (1) FR2943074B1 (pt)
MX (1) MX2011009553A (pt)
RU (1) RU2011137051A (pt)
WO (1) WO2010103499A1 (pt)

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WO2014180885A1 (en) 2013-05-10 2014-11-13 Fábrica Nacional De Moneda Y Timbre - Real Casa De La Moneda Method of providing a security document with a security feature, and security document
US20140370247A1 (en) * 2012-03-01 2014-12-18 Ferro Corporation Laser Absorbing Compounds
US20150001179A1 (en) * 2012-02-03 2015-01-01 Sandvik Surface Solutions Division Of Sandvik Materials Technology Deutschland Gmbh Method for producing etchable structures using a laser having a wavelength in the infrared range
WO2015040053A1 (de) * 2013-09-18 2015-03-26 Bundesdruckerei Gmbh Aktivierbares wert- oder sicherheitsprodukt, verfahren zum aktivieren und verfahren zum herstellen des wert- oder sicherheitsproduktes
US9776210B2 (en) 2012-03-01 2017-10-03 Ferro Corporation Laser absorbing compounds
EP3225376A1 (de) * 2016-03-30 2017-10-04 Wirthwein AG Kunststoffformteil mit schwarz- bzw. grauer uv-markierung, verfahren zur herstellung einer markierung des kunststoffformteils sowie in-mould-folie
EP3225375A1 (de) * 2016-03-30 2017-10-04 Wirthwein AG Kunststoffformteil mit farbiger uv-markierung, verfahren zur herstellung einer markierung des kunststoffformteils sowie in-mould-folie mit fotochromen pigmenten
DE102019006029A1 (de) * 2019-08-27 2021-03-04 Veridos Gmbh Buchartiges Identifikationsdokument

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
FR2943074B1 (fr) * 2009-03-13 2011-05-20 Arjowiggins Security Substrat marquable au laser et procede de fabrication associe
CN102168391A (zh) * 2011-02-17 2011-08-31 无锡侨颂特种纸有限公司 一种化学防伪纸的制作方法
FR2992256A1 (fr) 2012-06-26 2013-12-27 Arjowiggins Security Element en feuille engravable par laser.

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BRPI1009820A2 (pt) 2016-03-15
RU2011137051A (ru) 2013-04-20
WO2010103499A1 (fr) 2010-09-16
CA2754867A1 (fr) 2010-09-16
FR2943074A1 (fr) 2010-09-17
EP2406084A1 (fr) 2012-01-18
MX2011009553A (es) 2011-10-12

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