EP1590185A2 - Procede pour la realisation d'un composant optique de securite - Google Patents
Procede pour la realisation d'un composant optique de securiteInfo
- Publication number
- EP1590185A2 EP1590185A2 EP04707558A EP04707558A EP1590185A2 EP 1590185 A2 EP1590185 A2 EP 1590185A2 EP 04707558 A EP04707558 A EP 04707558A EP 04707558 A EP04707558 A EP 04707558A EP 1590185 A2 EP1590185 A2 EP 1590185A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- zones
- type
- whose surface
- matt
- surface state
- 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
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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/373—Metallic materials
-
- 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
-
- 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
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- the present invention relates to the field of document authentication and more particularly that of optical identification components using diffracting elements.
- These components are used in metallic form for the marking of credit cards or banknotes. They are then manufactured in the form of tracks or wires, or even surface components called “patches”. They are sometimes demetallized locally so as to draw a recognizable outline having the shape of a logo, or even to release a transparent frame.
- US patent US5513019 describes a security sign comprising a phase hologram embossed in a film of "Mylar” having a reflective layer of tungsten oxide, zinc sulfide, or a mixture.
- the relief microtexture produces a semi-transparent hologram, allowing the visualization of additional information.
- PCT patent application O0136213 describes a component for authenticating a document or a product, having a transparent plastic film embossed to present at least one diffracting network, the embossed surface being at least partially coated with a metallization layer, characterized in that the embossed film has a first zone producing a rainbow effect according to a first orientation of the component relative to a lighting direction, said rainbow effect disappearing when the component is oriented perpendicular to the first orientation, and a second area coated with a dielectric material producing a colored effect of a first color for a first orientation of the component and a second different color for the orientation perpendicular to the first orientation.
- the first zone is a metallized zone and the second zone is a zone having a deposit of a dielectric material.
- the component is produced according to a method comprising a step of stamping a transparent film, a step of metallization of the stamped film, a step of partial demetallization of the stamped film thus prepared and a step of depositing a dielectric material.
- the invention relates, in its most general sense, to a method for producing an optical security component, comprising a step of stamping an ant transparent film, a step of depositing a layer under vacuum. dielectric material of high optical index over the entire surface, a partial metallization step of the film thus prepared and a sizing step, characterized in that the stamping step is carried out with a matrix having a first type of areas of which the surface condition is matt, a second type of zone whose surface state has etchings to form a diffracting network, and in that the metallization step consists in depositing a layer of metal on only part of the zones of each type, the other part remaining transparent.
- the stamping is carried out with a matrix further having a third type of zones whose surface condition is smooth.
- the matrix further having a fourth type of zones whose surface state is semi-matt, with a graininess less than the matt surface state.
- some of said metallized parts have a smaller dimension of less than 0.5 mm.
- some of said transparent parts have a smaller dimension of less than 0.5 mm.
- the invention also relates to a matrix for the implementation of this method, having a first type of zones whose surface state is matt, a second type of zones whose surface state has etchings for form a diffracting network and a third type of zones whose surface condition is smooth, some of said zones have a smaller dimension less than 0.5 mm. It also relates to a security component characterized in that it has colored zones corresponding to a diffraction grating, zones having an aspect of matt metal and zones having an appearance of reflecting mirror, some of said zones having a smaller dimension. less than 0.5mm.
- FIG. 1 shows an enlarged view of an example of a component produced according to the method of the invention.
- the security component has transparent zones (1) having a matt appearance, metallized zones (2) having a mirror effect, and colored zones (3).
- This component is produced by a succession of only four operations.
- the first operation is a step of stamping a plastic film, for example a transparent polyester film.
- the stamping is carried out with a matrix having three or four types of surface finish:
- the second operation consists in deposition under vacuum of a layer of dielectric material of high optical index, for example Zinc sulfide (ZnS), over the entire surface of the stamped film.
- a layer of dielectric material of high optical index for example Zinc sulfide (ZnS)
- the third operation is a step of partial metallization of the surface of the film, identifying the stamped areas to form a diffracting network.
- the metallization covers only part of the diffracting zones and only part of the matt zones, certain elements of these covering zones having great finesse, with a smaller dimension of less than 0.5 millimeters.
- the last step is a gluing step by laminating or coating an adhesive layer.
- the colored mark has a gray 'clear color to be visible on the metal parts. It has a matt metal appearance which strongly contrasts with the mirror aspect. It is however imperceptible on the transparent parts. It can also be optically active by combination with other optical effects, to present a pastel color or a watermark effect.
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Credit Cards Or The Like (AREA)
- Eyeglasses (AREA)
- Glass Compositions (AREA)
- Physical Vapour Deposition (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0301221 | 2003-02-03 | ||
FR0301221A FR2850609B1 (fr) | 2003-02-03 | 2003-02-03 | Procede pour la realisation d'un composant optique de securite |
PCT/FR2004/000251 WO2004069553A2 (fr) | 2003-02-03 | 2004-02-03 | Procede pour la realisation d’un composant optique de securite |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1590185A2 true EP1590185A2 (fr) | 2005-11-02 |
EP1590185B1 EP1590185B1 (fr) | 2009-01-21 |
Family
ID=32696313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04707558A Revoked EP1590185B1 (fr) | 2003-02-03 | 2004-02-03 | Procede pour la realisation d'un composant optique de securite |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060035066A1 (fr) |
EP (1) | EP1590185B1 (fr) |
AT (1) | ATE421431T1 (fr) |
DE (1) | DE602004019188D1 (fr) |
ES (1) | ES2321513T3 (fr) |
FR (1) | FR2850609B1 (fr) |
WO (1) | WO2004069553A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008144349A1 (fr) * | 2007-05-18 | 2008-11-27 | 3M Innovative Properties Company | Article inviolable |
GB2456500B (en) | 2007-10-23 | 2011-12-28 | Rue De Int Ltd | Improvements in security elements |
US8663758B2 (en) * | 2008-09-09 | 2014-03-04 | Frito-Lay North America, Inc. | Partially metallized film having barrier properties |
GB0902398D0 (en) | 2009-02-13 | 2009-04-01 | Conductive Inkjet Tech Ltd | Diffractive optical elements |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9106128D0 (en) * | 1991-03-22 | 1991-05-08 | Amblehurst Ltd | Article |
US5513019A (en) * | 1993-04-16 | 1996-04-30 | Crown Roll Leaf, Inc. | Semi-transparent reflective layer for a phase hologram |
GB9917442D0 (en) * | 1999-07-23 | 1999-09-29 | Rue De Int Ltd | Security device |
FR2801246B1 (fr) * | 1999-11-19 | 2002-01-25 | Hologram Ind | Securisation de documents ou de produits par apposition d'un composant optiquement actif pour la verification de l'authenticite |
DE10232245B4 (de) * | 2002-07-17 | 2008-06-12 | Leonhard Kurz Gmbh & Co. Kg | Optisch variables Element mit variierender Distanzschicht-Dicke |
-
2003
- 2003-02-03 FR FR0301221A patent/FR2850609B1/fr not_active Expired - Fee Related
-
2004
- 2004-02-03 EP EP04707558A patent/EP1590185B1/fr not_active Revoked
- 2004-02-03 ES ES04707558T patent/ES2321513T3/es not_active Expired - Lifetime
- 2004-02-03 WO PCT/FR2004/000251 patent/WO2004069553A2/fr active Application Filing
- 2004-02-03 AT AT04707558T patent/ATE421431T1/de not_active IP Right Cessation
- 2004-02-03 DE DE602004019188T patent/DE602004019188D1/de not_active Expired - Lifetime
-
2005
- 2005-07-25 US US11/188,520 patent/US20060035066A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2004069553A3 * |
Also Published As
Publication number | Publication date |
---|---|
DE602004019188D1 (de) | 2009-03-12 |
ATE421431T1 (de) | 2009-02-15 |
WO2004069553A2 (fr) | 2004-08-19 |
FR2850609B1 (fr) | 2005-03-25 |
US20060035066A1 (en) | 2006-02-16 |
WO2004069553A3 (fr) | 2004-10-21 |
EP1590185B1 (fr) | 2009-01-21 |
ES2321513T3 (es) | 2009-06-08 |
FR2850609A1 (fr) | 2004-08-06 |
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