CA2498737A1 - Object identifying medium using multi-layer thin-film - Google Patents

Object identifying medium using multi-layer thin-film Download PDF

Info

Publication number
CA2498737A1
CA2498737A1 CA002498737A CA2498737A CA2498737A1 CA 2498737 A1 CA2498737 A1 CA 2498737A1 CA 002498737 A CA002498737 A CA 002498737A CA 2498737 A CA2498737 A CA 2498737A CA 2498737 A1 CA2498737 A1 CA 2498737A1
Authority
CA
Canada
Prior art keywords
thin film
multilayer thin
discrimination medium
discrimination
medium
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.)
Granted
Application number
CA002498737A
Other languages
French (fr)
Other versions
CA2498737C (en
Inventor
Hidekazu Hoshino
Itsuo Takeuchi
Mutsumi Sasaki
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.)
NHK Spring Co Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2498737A1 publication Critical patent/CA2498737A1/en
Application granted granted Critical
Publication of CA2498737C publication Critical patent/CA2498737C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms
    • 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
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • 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
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00—Laminate comprising a hologram layer
    • G03H2250/36—Conform enhancement layer

Abstract

A discrimination medium for objects by which counterfeiting can be prevented, authenticity of the article can be easily and reliably determined, and the production cost can be reduced is provided. In the discrimination medium, the support body 31 and the pattern 20 appear to be the same color when viewed from a specific angle (for instance, viewing from the front). On the other hand, when the viewing angle is increased, the color of the pattern 20 composed of a multilayer thin film changes by color shift, whereby the pattern 20 becomes a color different from the support body 31.

Claims (16)

1. ~A discrimination medium for determining authenticity of an object by providing an optically discriminating mark on the object, the medium comprising:
a support body, and a multilayer thin film fixed to a part of the support body and having light selectivity of reflecting characteristics depending on a viewing angle.
2. ~A discrimination medium, for determining authenticity of an object by providing an optically discriminating mark on the object, the medium comprising:
a multilayer thin film having light selectivity of reflecting depending on a viewing angle, and a masking sheet fixed to a surface of the multilayer thin film for masking a part of the surface.
3. ~The discrimination medium according to claim 1 or 2, wherein a portion is formed by printing or foil transfer, and the portion exhibits a color equivalent to the color of the medium which further comprises the multilayer thin film viewed from a specific direction.
4. ~The discrimination medium according to one of claims 1 to 3, wherein the multilayer thin film is cut into strips or fibers, the multilayer thin film is held between the support body divided into two layers, 29~

and one or two layers of the support body have an opening to allow the multilayer thin film to be seen.
5. ~The discrimination medium according to one of claims 1 to 3, wherein the multilayer thin film is cut into strips, fibers, or small chips, the support body is made of paper, and the multilayer thin film is mixed to the support body when the support body was made.
6. ~The discrimination medium according to one of claims 1 to 3, wherein the multilayer thin film is cut into strips, small chips, or specific patterns, and the multilayer thin film is transcribed on a surface of the support body.
7. ~The discriminating medium according to one of claims 1 to 6, wherein a hologram processing or a press processing is made to the multilayer thin film.
8. ~The discrimination medium for discriminating according to one of claims 1 to 7, wherein the discrimination medium has an adhesive layer to adhere the medium to the object, and the adhesive layer includes a pigment or dye having a color which may be black.
9. ~The discrimination medium according to one of claims 1 to 7, the surface of the discrimination medium facing the object is printed which may be black.
10. ~The discrimination medium according to claim 8 or 9, wherein a fluorescent material layer or a light accumulating material layer is held between a part of the discrimination medium and a part of the adhesive layer or between a part of the discrimination medium and a part of the printed layer.
11. ~The discrimination medium according to one of claim 1 to 10, the medium further comprises:
a slit partially formed in the discrimination medium.
12. ~The discrimination medium according to one of claims 1 to 10, the medium further comprises:
a first multilayer thin film, a second multilayer thin film, and an optical absorption layer held between the first multilayer thin film and the second multilayer thin film.
13. ~The discrimination medium according to claim 12, wherein both sides of the optical absorption layer have light selectivity of reflecting characteristics depending on a viewing angle.
14. ~The discrimination medium according to claim 7, wherein the multilayer thin film includes a stamped layer for forming at least one of a hologram and an embossment.
15. ~The discrimination medium according to claim 14, wherein the stamped layer is made from a material selected from thermosetting resins, ionization radiation hardening resin, and ultraviolet ray hardening resin.
16. ~The medium for discriminating according to one of claims 1 to 15, wherein the multilayer thin film is obtained by stacking thin films multiple and drawing the stacked films.
CA2498737A 2002-09-13 2003-09-12 Object identifying medium using multi-layer thin-film Expired - Fee Related CA2498737C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002-269163 2002-09-13
JP2002269163 2002-09-13
PCT/JP2003/011716 WO2004024439A1 (en) 2002-09-13 2003-09-12 Object identifying medium using multi-layer thin-film

Publications (2)

Publication Number Publication Date
CA2498737A1 true CA2498737A1 (en) 2004-03-25
CA2498737C CA2498737C (en) 2012-01-03

Family

ID=31986806

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2498737A Expired - Fee Related CA2498737C (en) 2002-09-13 2003-09-12 Object identifying medium using multi-layer thin-film

Country Status (6)

Country Link
US (1) US7590239B2 (en)
EP (1) EP1543950A4 (en)
JP (1) JP3969592B2 (en)
CN (1) CN100486805C (en)
CA (1) CA2498737C (en)
WO (1) WO2004024439A1 (en)

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AU2006202315B2 (en) * 2005-06-17 2011-01-27 Viavi Solutions Inc. Covert security coating
JP4858133B2 (en) * 2006-12-05 2012-01-18 大日本印刷株式会社 Hologram label
KR20100033704A (en) * 2008-09-22 2010-03-31 엘지전자 주식회사 A stamper including a micro pattern
US20110181928A1 (en) * 2009-02-19 2011-07-28 O'boyle Lily Durable washable label having a visible diffraction grating pattern
US20100206953A1 (en) * 2009-02-19 2010-08-19 O'boyle Lily Durable washable label having a visible diffraction grating pattern
DE102009058243A1 (en) * 2009-12-14 2011-06-16 Giesecke & Devrient Gmbh Thin-film element with multilayer structure
JP5569235B2 (en) * 2010-08-04 2014-08-13 凸版印刷株式会社 Information media
JP5659800B2 (en) * 2011-01-11 2015-01-28 大日本印刷株式会社 Hologram sheet
JP5659820B2 (en) * 2011-01-24 2015-01-28 大日本印刷株式会社 Hologram sheet
JP5964717B2 (en) * 2012-10-19 2016-08-03 日本発條株式会社 Covering member
JP6364754B2 (en) * 2013-11-26 2018-08-01 凸版印刷株式会社 Display body and manufacturing method of display body
GB2531581B (en) * 2014-10-23 2016-09-07 De La Rue Int Ltd Improvements in security papers and documents
MDS20170076U2 (en) * 2014-12-01 2017-11-30 Ирина МИРОЧНИК Method for authentication of consumer goods
JP2016117185A (en) * 2014-12-19 2016-06-30 凸版印刷株式会社 Display body, article with display body, and authenticity determination method
US11662509B2 (en) * 2017-03-02 2023-05-30 3M Innovative Properties Company Dynamic reflected color film with low optical caliper sensitivity
CA3180245A1 (en) * 2020-04-23 2021-10-28 Sicpa Holding Sa Process for producing dichroic security features for securing value documents

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Also Published As

Publication number Publication date
US7590239B2 (en) 2009-09-15
JPWO2004024439A1 (en) 2006-01-05
WO2004024439A1 (en) 2004-03-25
EP1543950A4 (en) 2008-02-27
CA2498737C (en) 2012-01-03
CN1681647A (en) 2005-10-12
EP1543950A1 (en) 2005-06-22
CN100486805C (en) 2009-05-13
US20060023879A1 (en) 2006-02-02
JP3969592B2 (en) 2007-09-05

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20200914