WO2010037456A1 - Encre d’imprimerie absorbant les infrarouges - Google Patents

Encre d’imprimerie absorbant les infrarouges Download PDF

Info

Publication number
WO2010037456A1
WO2010037456A1 PCT/EP2009/006328 EP2009006328W WO2010037456A1 WO 2010037456 A1 WO2010037456 A1 WO 2010037456A1 EP 2009006328 W EP2009006328 W EP 2009006328W WO 2010037456 A1 WO2010037456 A1 WO 2010037456A1
Authority
WO
WIPO (PCT)
Prior art keywords
boride
infrared
security
cards
tickets
Prior art date
Application number
PCT/EP2009/006328
Other languages
German (de)
English (en)
Inventor
Reinhold Rueger
Matthias Kuntz
Original Assignee
Merck Patent Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Merck Patent Gmbh filed Critical Merck Patent Gmbh
Publication of WO2010037456A1 publication Critical patent/WO2010037456A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
    • 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
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • 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
    • B42D25/382—Special inks absorbing or reflecting infrared light

Definitions

  • the present invention relates to infrared-absorbing inks and security elements and security products containing such security elements.
  • security products are provided with security elements, also called security features, to protect against counterfeiting.
  • visible security elements are used, which can be detected without technical aids with the naked eye, e.g. Angle-dependent colors, but also hidden elements that can not be detected without technical aids.
  • visible and hidden security elements are shared.
  • Invisible security features play a major role in machine detection and capture of value and ID documents. Examples of this are the recognition of banknotes in ATMs or the automatic detection and authenticity of ID cards using testers. Such devices use electrical or magnetic properties or even hidden optical effects, e.g. UV or IR absorption or luminescence in different wavelength ranges.
  • GB 1534403 describes a security product which is printed with two colors which appear identical in the visible spectral range and differ in their IR absorption. As an IR absorber soot is used. A disadvantage of this process is the black color of carbon black, which causes the ink to gray, especially at higher carbon black concentrations. The method is therefore limited useful.
  • WO 98/28374 describes a printing ink for security elements with graphite as IR-absorbing additive.
  • graphite By using graphite, the desired color of the printed image should be less affected than by soot. Nevertheless, with red or orange base colors, as stated in the examples of WO 98/28374, only "dirty" Obtained shades. Bright colors or even transparent colors with good IR absorption are not feasible.
  • EP 1790701 describes a printing ink for steel intaglio printing which contains 5-70% by weight of a transition metal compound as IR-absorbing
  • the IR-absorbing component has to be added in relatively high concentrations.
  • a first subject of the invention is thus an infrared-absorbing printing ink containing at least one boride, which absorbs radiation in the wavelength range from 800 to 2500 nm.
  • infrared images with good contrast and high authenticity can be obtained, which have no or only a very low intrinsic color and are preferably well suited as a hidden security element.
  • infrared-absorbing inks for the purposes of the invention, both colorant-containing and colorant-free inks, such. B. flexographic, gravure and offset inks, and inks, such. As ink-jet inks to understand.
  • infrared-absorbing, IR-absorbing or infrared-absorbing agents are referred to in the present invention, those materials that absorb radiation in the wavelength range of 800 - 2500 nm (near infrared / NIR).
  • the infrared-absorbing printing ink is preferably recognizable by means of an IR detector or an IR camera. Such detectors and cameras are known to those skilled in the art and are commercially available.
  • the printing ink according to the invention preferably has a strong absorption in the wavelength range from 800 to 1500 nm.
  • the printing ink of the invention preferably exhibits a high transparency for visible light (380-780 nm). For the human eye, it is thus preferably invisible.
  • the component of the present inks essential to the invention is at least one boride which absorbs radiation in the wavelength range from 800 to 2500 nm and which is used as the infrared absorber of the printing ink.
  • Borides are, as known to those skilled in the art, non-stoichiometric compounds of boron and a metal. You can powder metallurgically or by reaction of the metal oxides with
  • Boron carbide are produced.
  • borides according to the invention are z.
  • commercially available compounds such as aluminum boride, magnesium boride, europium boride, calcium boride, lanthanum boride, cerium boride, samarium boride, yttrium boride, molybdenum boride, silicon boride, zirconium boride, titanium boride, vanadium boride or chromium bromide or mixtures thereof.
  • lanthanum hexaboride (LaB 6 ), cerium hexaboride (CeB 6 ), samarium hexaboride (SmB 6 ), yttrium hexaboride (YB 6 ), molybdenum boride (Mo 2 B 5 ), silicon hexaboride (SiB 6 ), silicon tetraboride (SiB 4 ), zirconium diboride (ZrB 2 ) , Titanium boride (TiB 2 ), vanadium boride (VB 2 ) or chromium diboride (CrB 2 ) or mixtures thereof are suitable.
  • Hexaborides are preferably used. Particularly preferred is the lanthanum hexaboride (LaB 6 ).
  • a particular advantage of the borides according to the invention is that they have a strong absorption in the wavelength range from 800 to 2500 nm, preferably from 800 to 1500 nm, and no or only a small intrinsic color.
  • the commercially available borides usually have mean particle sizes significantly> 50 microns, so that they are before use as an IR absorber in printing inks with a suitable grinding machine, e.g. a bead mill, ball mill or air jet mill, must be milled to the appropriate particle sizes.
  • a suitable grinding machine e.g. a bead mill, ball mill or air jet mill
  • the grinding is carried out in aqueous suspensions.
  • the preferred grinding process for the Feinstvermahlung is grinding in the bead mill. This allows the borides to be ground in suspension up to average particle sizes of 50 nm.
  • the grinding is preferably carried out in aqueous suspension in the presence of dispersing aids.
  • the aqueous suspensions can be added directly to aqueous printing inks.
  • the borides can be finely ground in a solvent or solvent system suitable for the printing ink and then added to the printing ink.
  • a solvent or solvent system suitable for the printing ink it is also possible to convert the finely ground borides from the aqueous suspension into a hydrophobic preparation with the aid of suitable emulsifiers or protective colloids.
  • the resulting hydrophobic preparation of the boride can then be redispersed in solvents and added to the non-aqueous printing ink.
  • the borides are added in concentrations of from 0.01 to 5% by weight, preferably from 0.01 to 2% by weight, and in particular from 0.05 to 0.5% by weight, based on the total weight of the printing ink.
  • the borides can be used in very small amounts without the detectability being adversely affected.
  • the printing inks according to the invention usually contain in addition to the boride one or more binders and a solvent or a
  • Solvent mixture optionally one or more wetting or leveling agents, optionally one or more thickeners or other rheological additives, waxes, antioxidants, drying accelerators, photoinitiators and optionally one or more colorants.
  • compositions of printing inks, applications, properties and basic principles of the formulation of printing inks are known in the art and z. B. in "The Printing Ink Manual”, Kluwer Academic Publishers, Dordrecht, Netherlands, 5th edition, reprint 1999 described.
  • binders for the printing inks according to the invention come z.
  • alkyd resins rosins, nitrocellulose, polyvinyl butyrals, vinyl chloride-acrylate copolymers, polyvinyl alcohol, casein, polyacrylates, melamine resins, melamine acrylates, epoxy acrylates, or Urethanacrylate in question.
  • UV-curable inks still contain photoinitiators, such.
  • Examples of UV-curable inks are in the o. Textbook "The Printing Ink Manual" in Chapter 11.
  • solvents in printing inks are water, mineral oils, alcohols, methyl ethyl ketone or toluene, which is used especially in printing inks for gravure printing.
  • the printing ink contains only at least one radiation in the wavelength range from 800 to 2500 nm absorbing boride as a pigment and no further colorants.
  • the ink is transparent and hardly colored, the print image is not or only slightly visible to the naked eye.
  • an infrared camera if necessary in conjunction with a suitable filter / filter combination or an infrared detector, the printed image can be easily recognized. For use as a non-visible security element, this picture may already be sufficient. But it can easily be with a single or multi-colored, overprinted in the near infrared transparent image. The color image is then visible with the eye and the infrared image with the detector.
  • the transparent infrared-absorbing image may be printed over the color image.
  • halftone dots or lines of the individual color separations of the printed image as usual in multicolor printing, can be present next to one another.
  • the printing ink in addition to the infrared-absorbing boride pigment, also contains one or more near-infrared non-absorbing colored pigments and / or one or more near-infrared non-absorbing dyes.
  • the use of partial images has significant advantages, since with little effort both the visible wavelength range and the IR range can be checked and set to one another in a logical combination (on-off).
  • barcodes can also be invisibly integrated into single- or multi-color images.
  • the present invention also has the advantage that the properties of the printing ink are not or only slightly influenced, so that conventional application methods can be used.
  • the printing inks according to the invention can be applied by conventional techniques such as printing, embossing and stamping or else by inkjet printing.
  • the borides can be used in all common printing inks, e.g. in flexographic, gravure, gravure, offset, pad, screen, and inkjet inks. They are preferably well compatible with the usual printing ink systems. In addition, they are resistant to light, temperature and chemical influences.
  • a second subject of the invention is a process for producing an infrared-absorbing printing ink according to one or more of claims 1 to 6, characterized in that at least one boride which absorbs radiation in the wavelength range from 800 to 2500 nm, preferably from 800 to 1500 nm , having an average particle size of 0.01 to 2 ⁇ m, preferably 0.05 to 0.5 ⁇ m, in particular 0.05 to 0.1 ⁇ m, and this boride with one or more binders, a solvent or a solvent mixture, optionally one or more Wetting or leveling agents, optionally mixed with one or more thickeners and optionally one or more colorants.
  • infrared images with good contrast and high fastness are available, which have no or only very little intrinsic color and are well suited as hidden security elements.
  • Suitable printing methods are all methods known in the art such. B. flexographic, gravure, pad printing, screen printing, off-set printing or ink-jet printing.
  • a third object of the invention is thus the use of the infrared-absorbing ink according to one or more of claims 1 to 6 for producing a security element for security products.
  • a fourth object of the invention is the use of the infrared-absorbing inks for the brand protection of high quality branded articles.
  • Another object of the invention is an infrared-absorbing security element for security products containing at least one boride as an infrared absorber
  • Such security elements can preferably be detected and read out easily and reliably by means of an IR detector or an IR camera. For the human eye, however, they are preferably invisible.
  • Security elements are preferably used in security products.
  • Another object of the invention is thus a security product comprising at least one security element produced with at least one infrared-absorbing ink according to one or more of claims 1 to 6.
  • Preferred security products according to the invention are banknotes, checks, bank and credit cards, check cards, securities and objects, passports, identity documents, chip cards, certificates, test certificates, driver's licenses, entrance tickets, stamps and stamps, identification cards, tickets, rail and airline tickets, Entrance tickets, telephone cards, labels, packaging materials, test marks, seals and objects to be protected.
  • the security products preferably have at least one further security element.
  • Preferred additional security elements are watermarks
  • the present invention can also be used to advantage for the marking of production goods. So z. B. production data,
  • Batch numbers, expiration dates, barcodes, company logos, serial numbers, etc. are applied as a hidden feature on packages that can be detected by an infrared reader.
  • the invention can also be used advantageously for the purpose of trademark protection of high quality goods or branded goods, for. B. by applying an invisible infrared readable barcode, a 2-D-Datamatrixcodes or any other recognizable in the infrared image mark on the objects to be marked such.
  • ACBR Lanthanum hexaboride
  • Inks are divided into 3 parts. One part is mixed with 1 wt .-% of the ground LaB 6 dispersion. A yellow ink absorbing in the near IR is obtained.
  • Fine graphite from the company Graphit Kropfmühl and homogenized in a planetary mixer. This gives a yellow-gray printing ink.
  • the original aqueous flexographic ink and the LaB 6- containing flexographic ink are printed side by side over the entire surface.
  • the printed carton is viewed with an infrared-enhanced retrofitted camera with filter (Canon EOS 450D).
  • An infrared-enhanced retrofitted camera with filter Canon EOS 450D.
  • Example 2 Preparation of a preparation for solvent printing inks and use in a gravure ink
  • a commercially available solvent-based yellow gravure ink from Siegwerke is divided. One half is used without addition, to the other half 1 wt .-% (based on the finished ink) of the pasty LaB 6 preparation is added and stirred. From both inks, a raster pattern is printed on a white paper strip with a Saueressig hand-held printing machine. Both prints are hardly distinguishable visually. Under the infrared sensitive
  • the yellow print appears without camera LaB 6 -Zusatz bright, with LaB 6 - addition dark.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

La présente invention concerne des encres d’imprimerie absorbant les infrarouges, pour la préparation d’éléments sécurisés qui contiennent, comme agent absorbant les infrarouges, au moins un borure qui absorbe un rayonnement dans la plage de longueurs d’onde allant de 800 à 2500 nm.
PCT/EP2009/006328 2008-09-30 2009-09-02 Encre d’imprimerie absorbant les infrarouges WO2010037456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008049595.6 2008-09-30
DE102008049595A DE102008049595A1 (de) 2008-09-30 2008-09-30 Infrarotabsorbierende Druckfarben

Publications (1)

Publication Number Publication Date
WO2010037456A1 true WO2010037456A1 (fr) 2010-04-08

Family

ID=41347950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/006328 WO2010037456A1 (fr) 2008-09-30 2009-09-02 Encre d’imprimerie absorbant les infrarouges

Country Status (2)

Country Link
DE (1) DE102008049595A1 (fr)
WO (1) WO2010037456A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034730A (zh) * 2014-05-22 2014-09-10 立德高科(北京)数码科技有限责任公司 通过检测墨点厚度以辨别当前物品真伪的方法及装置
CN107429097A (zh) * 2015-01-27 2017-12-01 住友金属矿山株式会社 近红外线吸收微粒分散液及其制造方法、使用了近红外线吸收微粒分散液的防伪油墨组合物及使用了近红外线吸收微粒的防伪印刷物
CN113185868A (zh) * 2021-04-02 2021-07-30 广东丰腾防伪科技有限公司 一种基于光学波长技术暗码防伪溯源隐形油墨及制备方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180015772A1 (en) 2015-01-27 2018-01-18 Sumitomo Metal Mining Co., Ltd. Near infrared absorbing fine particle dispersion liquid and method for producing the same, anti-counterfeit ink composition using near infrared absorbing fine particle dispersion liquid, and anti-counterfeit printed matter using near infrared absorbing fine particles
DE102015102045A1 (de) * 2015-02-12 2016-08-18 Bundesdruckerei Gmbh Identifikationsdokument mit einem gedruckten Personenbild
CN108624119A (zh) 2017-03-24 2018-10-09 卡西欧计算机株式会社 墨水、印刷装置、印刷方法以及造形物的制造方法
DE102017004496A1 (de) 2017-05-11 2018-11-15 Giesecke+Devrient Currency Technology Gmbh Stichtiefdruckfarbe, Druckverfahren und Druckerzeugnis
JP2019167418A (ja) * 2018-03-22 2019-10-03 カシオ計算機株式会社 インク、熱膨張性シート及び造形物の製造方法
JP6835030B2 (ja) 2018-04-27 2021-02-24 カシオ計算機株式会社 熱膨張性シート、熱膨張性シートの製造方法及び造形物の製造方法
DE102019004229A1 (de) 2019-06-13 2020-12-17 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit bei Beleuchtung mit elektromagnetischer Strahlung im infraroten Wellenlängenbereich unterschiedlichen Druckfarben
DE102020000790A1 (de) 2020-02-06 2021-08-12 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit bei Beleuchtung mit elektromagnetischer Strahlung im infraroten Wellenlängenbereich transparenten Druckfarben
DE102021202843A1 (de) 2021-03-23 2022-09-29 ESN Deutsche Tischtennis Technologie GmbH Tischtennisball mit Markierung zur Erfassbarmachung einer Ballrotation
DE102022002398A1 (de) * 2022-07-01 2024-01-04 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit zwei unterschiedlichen Druckfarben

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915137A1 (fr) * 1997-11-06 1999-05-12 Bayer Aktiengesellschaft Encres d'impression par jet contenant des pigments inorganiques de l'ordre de nanomètre
EP0943587A1 (fr) * 1998-03-16 1999-09-22 Sumitomo Metal Mining Company Limited Film de protection des rayons de l' infrarouge proche mono- ou multicouche et fluide de revêtement pour sa formation
EP1008564A1 (fr) * 1998-12-10 2000-06-14 Sumitomo Metal Mining Company Limited Solution de revêtement pour la déposition d'une couche coupant les rayonnements solaires et couche ainsi obtenue
JP2004168842A (ja) * 2002-11-19 2004-06-17 Sumitomo Metal Mining Co Ltd 偽造防止インク用組成物、偽造防止インク及び偽造防止印刷物
US20040156986A1 (en) * 2003-02-10 2004-08-12 Nanoproducts Corporation Color pigments nanotechnology
WO2007107407A1 (fr) * 2006-03-20 2007-09-27 Basf Se Composition de borure metallique nanoparticulaire et son utilisation pour le marquage de pieces en matiere plastique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1534403A (en) 1977-09-21 1978-12-06 Rue & Co Ltd T De Security documents
DE19653423A1 (de) 1996-12-20 1998-06-25 Giesecke & Devrient Gmbh Druckfarbe
EP1319683B1 (fr) 2001-12-11 2007-08-15 Asahi Glass Co., Ltd. Film de polymère fluoré utilisé comme agent de blocage de rayonnement thermique
JP3982466B2 (ja) 2002-09-25 2007-09-26 住友金属鉱山株式会社 熱線遮蔽成分分散体とその製造方法およびこの分散体を用いて得られる熱線遮蔽膜形成用塗布液と熱線遮蔽膜並びに熱線遮蔽樹脂成形体
DE102004045305A1 (de) 2004-09-16 2006-03-23 Merck Patent Gmbh Lasermarkierbare und laserschweißbare polymere Materialien
ATE420144T1 (de) 2005-11-25 2009-01-15 Sicpa Holding Sa Ir-absorbierende intaglio-druckfarbe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915137A1 (fr) * 1997-11-06 1999-05-12 Bayer Aktiengesellschaft Encres d'impression par jet contenant des pigments inorganiques de l'ordre de nanomètre
EP0943587A1 (fr) * 1998-03-16 1999-09-22 Sumitomo Metal Mining Company Limited Film de protection des rayons de l' infrarouge proche mono- ou multicouche et fluide de revêtement pour sa formation
EP1008564A1 (fr) * 1998-12-10 2000-06-14 Sumitomo Metal Mining Company Limited Solution de revêtement pour la déposition d'une couche coupant les rayonnements solaires et couche ainsi obtenue
JP2004168842A (ja) * 2002-11-19 2004-06-17 Sumitomo Metal Mining Co Ltd 偽造防止インク用組成物、偽造防止インク及び偽造防止印刷物
US20040156986A1 (en) * 2003-02-10 2004-08-12 Nanoproducts Corporation Color pigments nanotechnology
WO2007107407A1 (fr) * 2006-03-20 2007-09-27 Basf Se Composition de borure metallique nanoparticulaire et son utilisation pour le marquage de pieces en matiere plastique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034730A (zh) * 2014-05-22 2014-09-10 立德高科(北京)数码科技有限责任公司 通过检测墨点厚度以辨别当前物品真伪的方法及装置
CN107429097A (zh) * 2015-01-27 2017-12-01 住友金属矿山株式会社 近红外线吸收微粒分散液及其制造方法、使用了近红外线吸收微粒分散液的防伪油墨组合物及使用了近红外线吸收微粒的防伪印刷物
EP3252112A4 (fr) * 2015-01-27 2018-06-20 Sumitomo Metal Mining Co., Ltd. Solution de dispersion de microparticules absorbant les rayons du proche infrarouge, procédé de production de cette dernière, composition d'encre anti-contrefaçon mettant en oeuvre ladite solution de dispersion de microparticules absorbant les rayons du proche infrarouge, et matière imprimée anti-contrefaçon mettant en uvre lesdites microparticules absorbant les rayons du proche infrarouge
AU2016213099B2 (en) * 2015-01-27 2020-01-02 Sumitomo Metal Mining Co., Ltd. Near-infrared ray absorbing microparticle dispersion solution, production method thereof, counterfeit-preventing ink composition using said near-infrared ray absorbing microparticle dispersion solution, and anti-counterfeit printed matter using said near-infrared ray absorbing microparticles
CN107429097B (zh) * 2015-01-27 2020-10-27 住友金属矿山株式会社 近红外线吸收微粒分散液及其制造方法、防伪油墨组合物及防伪印刷物
US11248133B2 (en) 2015-01-27 2022-02-15 Sumitomo Metal Mining Co., Ltd. Near infrared absorbing fine particle dispersion liquid and method for producing the same, anti-counterfeit ink composition using near infrared absorbing fine particle dispersion liquid, and anti-counterfeit printed matter using near infrared absorbing fine particles
CN113185868A (zh) * 2021-04-02 2021-07-30 广东丰腾防伪科技有限公司 一种基于光学波长技术暗码防伪溯源隐形油墨及制备方法
CN113185868B (zh) * 2021-04-02 2023-06-09 广东丰腾防伪科技有限公司 一种基于光学波长技术暗码防伪溯源隐形油墨及制备方法

Also Published As

Publication number Publication date
DE102008049595A1 (de) 2010-04-01

Similar Documents

Publication Publication Date Title
WO2010037456A1 (fr) Encre d’imprimerie absorbant les infrarouges
EP2027218B1 (fr) Encres de sécurité contenant des composés métalliques absorbant les infrarouges
EP1748903B1 (fr) Element de securite lisible par machine pour produits de securite
DE60211368T2 (de) Tintensatz, druckerzeugnis, druckverfahren sowie verwendung eines farbmittels
EP2217666B2 (fr) Pigment de sécurité
EP0977670B1 (fr) Document de valeur imprime comportant une caracteristique d'authenticite luminescente
EP2296911B1 (fr) Procédé de fabrication d'un produit de sécurité et/ou de valeur présentant un motif aléatoire et une chaîne de caractères d'identification corrélée
EP2886343B1 (fr) Procédé de fabrication d'un document de valeur, document de valeur ainsi obtenu et procédé d'exécution du procédé
EP2296912B1 (fr) Procédé de fabrication d'un produit de sécurité et/ou de valeur comprenant des régions présentant une émission de luminescence différente
DE102013100662B4 (de) Markierungszusammensetzung, deren Verwendung und diese enthaltende Gegenstände
KR101835310B1 (ko) 보안용 근적외선 표지제, 이의 제조방법, 이를 이용한 근적외선 흡수 및 반사 잉크 조성물 및 인쇄물품
DE10322841A1 (de) Duales Sicherheitsmerkmal
EP0946661B1 (fr) Encre d'imprimerie pour marquage de securite sur un support de donnees
KR20220012908A (ko) 보안 잉크 및 기계 판독가능한 보안 특징
WO2007115662A1 (fr) Élément de sécurité
EP2655520B1 (fr) Elément de sécurité magnétisable coloré
WO2020249259A1 (fr) Élément de sécurité présentant des encres d'impression différentes lors de l'éclairage par un rayonnement électromagnétique dans la plage des longueurs d'onde infrarouges
EP1041436A1 (fr) Substrats protégés contre le copiage non-authorisé et procédé pour leur fabrication
DE102009035530A1 (de) UV-Wasserzeichen
DE102010019468A1 (de) Flexodruckwerk, Flexodruckverfahren und daraus erhältliches Druckerzeugnis
WO2018024760A1 (fr) Procédé pour réaliser une image imprimée optiquement variable
DE102022124432A1 (de) Verfahren zur Herstellung eines Sicherheitsmerkmals auf einem Trägersubstrat für Wert- und Sicherheitsdokumente
DE102022124431A1 (de) Verfahren zur Herstellung eines Sicherheitsmerkmals auf einem Trägersubstrat für Wert- oder Sicherheitsdokumente
WO2022069127A1 (fr) Encre de sécurité et article de sécurité, tel qu'un billet de banque, ayant un effet triluminescent
WO2024061898A2 (fr) Procédé de production d'un signe de sécurité sur un substrat de support pour documents de valeur ou de sécurité

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09778254

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09778254

Country of ref document: EP

Kind code of ref document: A1