CH707652B8 - Optische Sicherheitsvorrichtung mit Nanoteilchentinte und Verfahren zur Herstellung. - Google Patents

Optische Sicherheitsvorrichtung mit Nanoteilchentinte und Verfahren zur Herstellung. Download PDF

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Publication number
CH707652B8
CH707652B8 CH00987/14A CH9872014A CH707652B8 CH 707652 B8 CH707652 B8 CH 707652B8 CH 00987/14 A CH00987/14 A CH 00987/14A CH 9872014 A CH9872014 A CH 9872014A CH 707652 B8 CH707652 B8 CH 707652B8
Authority
CH
Switzerland
Prior art keywords
nanoparticle ink
safety device
manufacture
optical safety
metallic nanoparticle
Prior art date
Application number
CH00987/14A
Other languages
German (de)
English (en)
Other versions
CH707652B1 (de
Inventor
Fairless Power Gary
Batistatos Odisea
Lok Phei
Bruce Hardwick Michael
Original Assignee
Ccl Secure Pty Ltd
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 Ccl Secure Pty Ltd filed Critical Ccl Secure Pty Ltd
Publication of CH707652B1 publication Critical patent/CH707652B1/de
Publication of CH707652B8 publication Critical patent/CH707652B8/de

Links

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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • 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
    • B42D25/373—Metallic 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Accounting & Taxation (AREA)
  • Credit Cards Or The Like (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Printing Methods (AREA)
  • Optical Elements Other Than Lenses (AREA)
CH00987/14A 2011-12-22 2012-12-13 Optische Sicherheitsvorrichtung mit Nanoteilchentinte und Verfahren zur Herstellung. CH707652B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2011101684A AU2011101684B4 (en) 2011-12-22 2011-12-22 Optical Security Device with Nanoparticle Ink
PCT/AU2012/001520 WO2013090983A1 (en) 2011-12-22 2012-12-13 Optical security device with nanoparticle ink

Publications (2)

Publication Number Publication Date
CH707652B1 CH707652B1 (de) 2017-09-15
CH707652B8 true CH707652B8 (de) 2018-01-31

Family

ID=46124812

Family Applications (1)

Application Number Title Priority Date Filing Date
CH00987/14A CH707652B8 (de) 2011-12-22 2012-12-13 Optische Sicherheitsvorrichtung mit Nanoteilchentinte und Verfahren zur Herstellung.

Country Status (14)

Country Link
US (1) US20140319819A1 (enExample)
JP (2) JP2015507556A (enExample)
CN (2) CN107097547A (enExample)
AP (1) AP2014007711A0 (enExample)
AU (3) AU2011101684B4 (enExample)
BR (1) BR112014015649A2 (enExample)
CA (1) CA2858835A1 (enExample)
CH (1) CH707652B8 (enExample)
DE (1) DE112012005052T5 (enExample)
FR (1) FR2984800A1 (enExample)
GB (1) GB2511463A (enExample)
HK (1) HK1199863A1 (enExample)
MX (2) MX2014007528A (enExample)
WO (1) WO2013090983A1 (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011101684B4 (en) * 2011-12-22 2012-08-16 Innovia Security Pty Ltd Optical Security Device with Nanoparticle Ink
GB2510381B (en) 2013-02-01 2015-11-04 Rue De Int Ltd Security devices and methods of manufacture thereof
EP2767395A1 (en) * 2013-02-15 2014-08-20 KBA-NotaSys SA Substrate for security papers and method of manufacturing the same
JP6385882B2 (ja) * 2014-12-18 2018-09-05 俊一 朝野 印刷物および照明装置
JP6724793B2 (ja) * 2015-01-15 2020-07-15 凸版印刷株式会社 光学素子、物品、および、光学素子の製造方法
DE102015003665A1 (de) 2015-03-20 2016-09-22 Giesecke & Devrient Gmbh Sicherheitselement
WO2016170160A1 (en) * 2015-04-24 2016-10-27 Basf Se Process for the preparation of metallic nano-particle layers and their use for decorative or security elements
PL3297836T3 (pl) * 2015-05-21 2020-08-24 Canadian Bank Note Company, Limited Sposób zabezpieczania elastycznych zawiasów łączących arkusze laminowane w dokumentach bezpieczeństwa i zabezpieczone dokumenty bezpieczeństwa
DE102016009437A1 (de) 2016-08-03 2018-02-08 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement und Verfahren zur Herstellung eines Sicherheitselements
JP6891457B2 (ja) * 2016-11-11 2021-06-18 大日本印刷株式会社 表示体
US20180231701A1 (en) * 2017-02-15 2018-08-16 Longfei Ye Systems and methods of phase grating nanomanufacturing
DE102017003603A1 (de) 2017-04-12 2018-10-18 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit farbigem Merkmalsbereich
GB2566975B (en) 2017-09-29 2020-03-25 De La Rue Int Ltd Security Device And Method Of Manufacture Thereof
US10821765B2 (en) * 2018-01-10 2020-11-03 Assa Abloy Ab Secure documents and methods of manufacturing the same
US10350935B1 (en) 2018-01-10 2019-07-16 Assa Abloy Ab Secure document having image established with metal complex ink
US20190210397A1 (en) * 2018-01-10 2019-07-11 Assa Abloy Ab Laser treatment of secure documents
CA3116462A1 (en) * 2018-10-25 2020-04-30 Basf Se Compositions, comprising silver nanoplatelets
CN113302064A (zh) * 2019-01-21 2021-08-24 巴斯夫欧洲公司 安全元件
DE102019003945A1 (de) 2019-06-06 2020-12-10 Giesecke+Devrient Currency Technology Gmbh Optisch variables Sicherheitselement mit mehrfarbigem reflektivem Flächenbereich
DE102020005268A1 (de) 2020-08-27 2022-03-03 Giesecke+Devrient Currency Technology Gmbh Optisch variables Sicherheitselement
CN117203007A (zh) 2021-02-03 2023-12-08 巴斯夫欧洲公司 包含银纳米片的组合物

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145212A (en) * 1988-02-12 1992-09-08 American Banknote Holographics, Inc. Non-continuous holograms, methods of making them and articles incorporating them
US5142383A (en) * 1990-01-25 1992-08-25 American Banknote Holographics, Inc. Holograms with discontinuous metallization including alpha-numeric shapes
JPH06286367A (ja) * 1993-03-31 1994-10-11 Toppan Printing Co Ltd 表示体およびその真偽判定方法
US5786910A (en) * 1995-05-11 1998-07-28 Advanced Deposition Technologies, Inc. Pattern metallized optical varying security devices
DE19635085A1 (de) * 1996-08-30 1998-03-05 Eckart Standard Bronzepulver Korrosionsstabile, durch Physical Vapor Deposition hergestellte Aluminiumpigmente und Verfahren zu deren Stabilisierung
US6655719B1 (en) * 1998-02-05 2003-12-02 Yoram Curiel Methods of creating a tamper resistant informational article
DE19928060A1 (de) * 1999-06-15 2000-12-21 Whd Elektron Prueftech Gmbh Optisch variables Sicherheitsmerkmal und Verfahren zu seiner Herstellung
CA2501478A1 (en) * 2002-10-07 2004-04-15 Note Printing Australia Limited Embossed optically variable devices
JP4017572B2 (ja) * 2003-07-15 2007-12-05 特種製紙株式会社 偽造防止用紙、及び偽造防止印刷物
DE10342674B4 (de) * 2003-09-16 2007-07-19 Leonhard Kurz Gmbh & Co. Kg Verfahren und Foliensystem zur Herstellung eines individualisierten optisch variablen Elements
DE10351129B4 (de) * 2003-11-03 2008-12-24 Ovd Kinegram Ag Diffraktives Sicherheitselement mit einem Halbtonbild
DE602006017644D1 (de) * 2005-01-14 2010-12-02 Cabot Corp Sicherheitseinrichtungen sowie verwendung und herstellungsverfahren davon
EP2450735B1 (en) * 2005-05-18 2018-02-21 Visual Physics, LLC Image presentation and micro-optic security system
EP1883864A4 (en) * 2005-05-20 2009-04-22 American Bank Note Holographic HOLOGRAMS WITH DISCONTINUOUS METAL LAYER COMPRISING DISSIMILABLE TRANSMISSION AREAS AND ARTICLES CONTAINING SAME
US20060275625A1 (en) * 2005-06-03 2006-12-07 Daniel Lieberman High and low refractive index and metallic surface relief coatings
JP2009507692A (ja) * 2005-09-12 2009-02-26 エレクトロニクス、フォー、イメージング、インコーポレーテッド グラフィック用途用金属インクジェット印刷システム
EP1832439B1 (en) * 2006-03-06 2014-04-23 JDS Uniphase Corporation Article having an optical effect
EP1862827B2 (en) * 2006-05-31 2012-05-30 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Nano-structured Zero-order diffractive filter
US8070186B2 (en) * 2006-05-31 2011-12-06 Cabot Corporation Printable reflective features formed from multiple inks and processes for making them
WO2008031170A1 (en) * 2006-09-15 2008-03-20 Securency International Pty Ltd Radiation curable embossed ink security devices for security documents.
DE102007057658A1 (de) * 2007-02-07 2009-06-04 Leonhard Kurz Stiftung & Co. Kg Sicherheitselement
JP2009000839A (ja) * 2007-06-19 2009-01-08 Dainippon Printing Co Ltd ホログラム転写箔およびホログラム積層体
DE112008003073T5 (de) * 2007-11-13 2010-09-23 Securency International Pty Ltd., Craigieburn Banknote mit Randfenster
RU2517546C2 (ru) * 2008-10-03 2014-05-27 Сикпа Холдинг Са Парный оптикопеременный защитный элемент, имеющий характерные длины волн отраженного излучения
WO2010049676A1 (en) * 2008-10-27 2010-05-06 De La Rue International Limited Security device comprising a printed metal layer in form of a pattern and methods for its manufacture
EP2181851B1 (en) * 2008-11-04 2011-08-31 Agfa-Gevaert N.V. Securization with dye diffusion transfer laminates
JP5428463B2 (ja) * 2009-03-30 2014-02-26 大日本印刷株式会社 色彩可変機能付き真偽判定体
CN102205753B (zh) * 2011-01-31 2012-10-03 传虹科技(天津)有限公司 一种用于防伪印刷的隐含图像的制作方法
CN202016282U (zh) * 2011-03-15 2011-10-26 深圳扬丰印刷有限公司 一种双重定位加工的防伪印刷产品
AU2011100315B4 (en) * 2011-03-22 2011-09-08 Innovia Security Pty Ltd Security element
AU2011101684B4 (en) * 2011-12-22 2012-08-16 Innovia Security Pty Ltd Optical Security Device with Nanoparticle Ink

Also Published As

Publication number Publication date
HK1199863A1 (en) 2015-07-24
DE112012005052T5 (de) 2014-09-18
GB201411053D0 (en) 2014-08-06
AU2015210426A1 (en) 2015-09-03
JP2015507556A (ja) 2015-03-12
US20140319819A1 (en) 2014-10-30
WO2013090983A1 (en) 2013-06-27
GB2511463A (en) 2014-09-03
MX2014007528A (es) 2014-08-29
CH707652B1 (de) 2017-09-15
CN107097547A (zh) 2017-08-29
BR112014015649A2 (pt) 2018-09-11
AU2011101684B4 (en) 2012-08-16
MX345416B (es) 2017-01-27
AU2012357700B2 (en) 2015-05-14
AU2011101684A4 (en) 2012-01-19
CN104010823B (zh) 2016-11-02
AP2014007711A0 (en) 2014-06-30
FR2984800A1 (fr) 2013-06-28
AU2012357700A1 (en) 2014-06-26
CN104010823A (zh) 2014-08-27
AU2015210426B2 (en) 2017-03-30
CA2858835A1 (en) 2013-06-27
JP2018086845A (ja) 2018-06-07

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Legal Events

Date Code Title Description
NV New agent

Representative=s name: MICHELI AND CIE SA, CH

PFA Name/firm changed

Owner name: CCL SECURE PTY LTD, AU

Free format text: FORMER OWNER: INNOVIA SECURITY PTY LTD, AU

PK Correction

Free format text: BERICHTIGUNG INHABER.

PL Patent ceased