EP3083263A1 - Process for the surface treatment of a security document and associated security document - Google Patents
Process for the surface treatment of a security document and associated security documentInfo
- Publication number
- EP3083263A1 EP3083263A1 EP14814894.3A EP14814894A EP3083263A1 EP 3083263 A1 EP3083263 A1 EP 3083263A1 EP 14814894 A EP14814894 A EP 14814894A EP 3083263 A1 EP3083263 A1 EP 3083263A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- varnish
- layer
- mfc
- ncc
- document
- 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
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- 238000004381 surface treatment Methods 0.000 title claims abstract description 8
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- UXOLDCOJRAMLTQ-UHFFFAOYSA-N ethyl 2-chloro-2-hydroxyiminoacetate Chemical compound CCOC(=O)C(Cl)=NO UXOLDCOJRAMLTQ-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/02—Dusting, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure ; Varnishing
-
- 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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/40—Cover layers; Layers separated from substrate by imaging layer; Protective layers; Layers applied before imaging
Definitions
- the present invention relates to the field of security documents, such as fiduciary documents or the like.
- “fiduciary document” means all documents such as banknotes, checks, bank cards, used to transmit a sum of money.
- "Assimilated document” means any document issued by an administration of the State to prove the identity of a person, his rights to drive a vehicle, such as in particular the identity card, the passport, driving license, etc. By this expression is also meant any document used to authenticate an object of value such as for example a label affixed to a luxury garment. We also hear any document used to certify the payment of a tax such as tax stamps.
- Figure 1 illustrates a fiduciary document 1, more particularly a banknote, on which no protective coating has been affixed.
- Bank note 1 comprises a cotton support 2 having two opposite faces 20 and 21.
- the bank note 1 also has on one of its faces several security impressions 3 of at least one pattern.
- security impressions 3 of different security levels are affixed to the banknote 1, in particular to deter attempts to reproduce.
- These security prints 3 are made by a succession of printing and securing processes, such as for example and without being limiting, laser marking or microperforation, flexography, screen printing, hot stamping, dry or wet offset, or intaglio printing. It is these security impressions 3 that gives the banknote 1 its high added value.
- the first-level security prints 3 are detectable to the naked eye, in daylight or artificial and do not require the use of a particular device.
- the presence of a watermark, colored fibers, visible elements in transvision, or tactile reliefs produced by intaglio printing on the banknote 1, are examples of first-level security printing 3 .
- the second-level security prints 3 are detectable using technologically modest devices such as ultraviolet or infrared lamps, or polarizing filters. These security impressions 3 allow in particular the authentication of the bank note 1 in various organizations, such as businesses and banking centers. Patterns or texts printed in invisible ink in the light of the day but visible under ultraviolet or infrared radiation, fluorescent fibers, or magnetic threads are examples of second-level security impressions.
- third-level security prints 3 require sophisticated devices and therefore represent a high cost.
- These security prints 3, for example tracers with a specific spectral signature, are mainly examined by the central banks.
- central banks are showing increasing interest in developing bank notes with a longer life span.
- Several studies have been carried out by central banks to characterize the various possible causes of withdrawal of bank notes. Such causes are for example tears, soiling, horny corners, graffiti, loss of rigidity, etc.
- Soiling is notably due to fatty substances such as human sebum naturally present on the surface of the skin. These fatty substances, which accumulate on the surface of the banknote 1 by lodging in pores and / or by weak chemical bonds, will contribute to tarnishing the original colors of the banknote 1. In addition, the oxidation of the fat accumulated on the surface of the bank note 1 will contribute over time to the appearance of a yellowish color, then brown which will be the cause of withdrawal of the circulation of the banknote 1.
- WO02051638 is described a technique which consists in performing a flexographic varnishing of the support 2 at the end of the manufacturing process of the bank note 1.
- This varnish affixed overprint improves the resistance to soiling of the ticket 1 and thus protects the security printing 3 in their entirety.
- WO2013 / 178986 It is also known from the state of the art WO2013 / 178986 in which is presented a security document comprising a varnish based on cellulose microfibrils.
- the cellulose microfibrils used in this varnish have a length of between 1 at ⁇ ⁇ , and a width and a thickness of between 5 and 10 nm.
- the present invention therefore aims to overcome the disadvantages described above by providing a method of surface treatment of a security document to improve the resistance to soiling of the security document, as well as its hydrophobic and oleophobic properties. , and in particular to guarantee the protection of the security impressions which are essential to the authentication of the banknote.
- the subject of the present invention is a method of surface treatment of a security document which comprises, on at least one of its opposite faces, at least one security impression consisting of at least one motif, this face and this at least one associated printing being covered with a transparent protective coating, in which the printing or coating technique is applied with a varnish comprising crystalline nanocellulose of 0.5 to 10. % by weight of varnish, on said at least one face, and in which one proceeds to drying said layer of varnish.
- a varnish which comprises about 1% of crystalline nanocellulose.
- said varnish is dried under ultraviolet radiation. According to a variant, said varnish is dried by a stream of hot air.
- the varnish is an epoxy-based varnish or an acrylate-based varnish.
- a solution comprising cellulose microfibrils is applied to at least one face of the security document, the cellulose microfibril layer is then dried, and the process is then followed. the layer of varnish on the cellulose microfibrils layer.
- the steps of applying a solution comprising cellulose microfibrils to at least one face of the security and drying document of the cellulose microfibril layer are repeated at least once before proceeding with the setting up of the varnish layer, so as to form at least two layers of cellulose microfibrils.
- the present invention also relates to a security document comprising, at least on one of its opposite faces, at least one security printing consisting of at least one pattern, this face and this at least one associated printing being covered with a transparent protective coating, characterized in that said coating comprises at least one layer of a varnish incorporating crystalline nanocellulose at a level of 0.5 to 10% by weight of the varnish.
- the varnish comprises about 1% of crystalline nanocellulose.
- the varnish is an epoxy-based varnish or an acrylate-based varnish.
- the transparent protective coating further comprises at least one layer of cellulose microfibrils, arranged between the at least one face of the document and the varnish layer.
- FIG. 1 is a top view, partial and schematic, of a bank note before implementation of the method
- FIG. 2 is a simplified view, in section, along plane I-I 1 of FIG. 1, of the banknote according to one embodiment of the invention
- FIG. 3 is a simplified view, in section, along the plane 11-1 of FIG. 1, of the bill according to another embodiment of the invention.
- FIG. 4 is a flowchart of the processing method implemented on the bank note represented in FIG. 2;
- FIG. 5 is a flowchart of the processing method implemented on the banknote represented in FIG. 3.
- the security document 1 comprises a support 2, for example made of wove paper made from cotton.
- the support 2 is made of vellum paper comprising a mixture of cotton and natural fibers, for example flax or abaca fibers.
- the support 2 is made of vellum paper comprising a mixture of cotton and synthetic fibers of polymer, for example based on polyethylene, polypropylene, polyester, polyamide.
- the support 2 consists exclusively of polymer such as a bi-oriented polypropylene.
- the support 2 is composite that is to say that the support 2 comprises an assembly of layers of natural fiber materials and continuous polymer layers such as polyesters, polyamides, or bi-oriented polypropylene .
- the security document 1 is for example a bank note.
- the support 2 has two opposite faces 20 and 21.
- the bill 1 has on one of its faces 20 several security prints 3 of at least one pattern.
- the bank note 1 has one or more security prints 3 on both faces 20 and 21 of the support 2.
- the bank note 1 further comprises an optically transparent protective coating R covering one or both faces 20 and 21 and associated security prints 3.
- the protective coating R comprises at least one layer 4 of a varnish in which crystalline nanocellulose NCC is incorporated at a height of 0.5 to 10% of the weight of the varnish.
- the crystalline nanocellulose NCC is, for example, in the form of a powder.
- Varnish means a varnish configured to dry with infrared and / or hot air or ultraviolet.
- acrylic lacquers comprising an aqueous base
- lacquers comprising an acrylate base are particularly suitable for forming the layer 4.
- Varnishes for example based on monomers of the family of cycloaliphatic epoxides which polymerize to give a polyepoxide matrix by means of initiators such as ultraviolet-activated onium salts are also adapted to form the layer 4.
- Nanocellulose is an organic material composed of cellulose fibers of very small size, in particular of the order of 5 to 20 nm. NCC crystalline nanocellulose and MFC cellulose microfibrils are distinguished.
- the microfibrils of MFC cellulose are obtained from a mechanical treatment of peeling of previously bleached fibers, then by treatments homogenization, microfluidization and micromilling.
- the dimensions of the MFC cellulose microfibrill particles vary according to the cellulose sources from which they are extracted.
- the MFC cellulose microfibrils generally have a diameter of 50 to 100 nm, a length of 1000 to 2000 nm and a specific surface of 10 to 100 m 2 / g.
- the crystalline nanocellulose NCC is obtained from the microfibrils of MFC cellulose, by a chemical treatment of acid hydrolysis. This acid hydrolysis makes it possible to avoid the degradation of the crystalline domains of the cellulose, while destroying the amorphous parts at the periphery and within the microfibrils of cellulose. Cellulose nanocrystals, also known as whiskers, are thus obtained.
- the dimensions of the NCC crystalline nanocellulose particles vary according to the cellulose sources from which they are extracted.
- the crystalline nanocellulose NCC has, for example, a diameter of 5 to 10 nm, a length of 100 to 500 nm and a specific surface area of approximately 500 m 2 / g.
- the crystalline nanocellulose NCC is thus distinguished from the microfibrils of MFC cellulose by its dimensions, in particular by a length well below the length of the cellulose microfibrils.
- the NCC crystalline nanocellulose and varnish layer comprises about 1% by weight of the NCC crystalline nanocellulose varnish.
- the protective coating R comprises a layer 4 of NCC varnish and nanocellulose crystalline. According to a variant (not shown), the protective coating R comprises several layers 4 of varnish and crystalline nanocellulose NCC.
- nanocellulose NCC in the dopant state, that is to say in a small amount as an additive in a varnish, has the surprising effect of substantially improving the resistance to soiling of the greenback 1, as well as as hydrophobic and oleophobic properties, while ensuring good mechanical properties.
- the use of nanocellulose is particularly advantageous insofar as it comes from a natural, renewable, recyclable and biodegradable material.
- the protective coating R comprising a layer of lacquer and crystalline nanocellulose NCC also has the advantage of being itself printable, and to be compatible with an epidermal contact, that is to say not to be toxic or allergenic.
- the protective coating R further comprises a layer 5 of MFC cellulose microfibrils arranged between the layer 4 of NCC crystalline nanocellulose and varnish and the face 20 of the banknote 1.
- the MFC cellulose microfibrils are, for example, in the form of a gel incorporated in a solvent, especially water or isopropanol.
- the MFC cellulose microfibrils gel comprises, for example, a solids content of 2% by weight of the gel, when the solvent used is water, and a solids content of 2.5% by weight of the gel, when the solvent used is isopropanol.
- the protective coating R comprises at least two layers of MFC cellulose microfibrils arranged between the layer 4 of NCC crystalline nanocellulose and varnish and the face 20 of the bank note 1.
- layers 5 of MFC cellulose microfibrils makes it possible, in combination with the layer of lacquer 4 and crystalline nanocellulose NCC, to provide a banknote 1 with improved resistance to soiling and hydrophobicity and oleophobicity. compared to the case where a single layer 4 of varnish and crystalline NCC nanocellulose is used.
- the use of MFC cellulose microfibre layers 5 makes it possible to improve the mechanical properties of the bank note 1, in particular the tear strength.
- the protective coating R comprising at least one layer of MFC cellulose microfibrils and a layer of NCC crystalline nanocellulose and varnish has the further advantage of being achievable by known industrial processes such as coating and printing, and to be compatible with an epidermal contact, that is to say not to be toxic or allergenic.
- the surface treatment of the banknote 1 illustrated in FIG. 2 takes place in the following manner.
- the varnish comprising the crystalline nanocellulose NCC is placed on one or both of the faces 20 and 21 of the bank note 11 by the printing or printing technique. coating, so as to form the transparent protective coating R.
- the coating layer 4 comprising NCC crystalline nanocellulose is for example applied by flexographic printing, gravure printing or screen printing methods, or even methods of coating with air knife, curtain coating or roller coating.
- the layer 4 of varnish is for example applied in flexography with anilox of 15 cnrrVnn 2 depositing an average of between 4 and 5 g / m 2 .
- the layer 4 of varnish comprising the crystalline nanocellulose NCC is dried.
- the drying of the layer 4 of varnish comprising the crystalline nanocellulose NCC is carried out under ultraviolet radiation.
- the varnish is a varnish comprising an epoxy or acrylate base.
- the drying of the lacquer layer 4 comprising the crystalline nanocellulose NCC is carried out by a stream of hot air. This embodiment is particularly advantageous when the varnish is a varnish comprising an aqueous base.
- the first and second steps 30 and 31 are repeated at least once so as to form two or more layers 4 of NCC crystalline nanocellulose and varnish.
- the surface treatment of the banknote 1 illustrated in FIG. 3 takes place in the following manner.
- a solution of MFC cellulose microfibrils gel and solvent is applied to one or both faces 20 and 21 of the bank note 1.
- the bank note 1 can be printed beforehand or not.
- the application of the solution for example made in the laboratory by means of a threaded rod on which the solution comprising the MFC cellulose microfibrils gel is deposited.
- the rod is then moved along the face 20 or 21 of the banknote 1 so as to distribute the solution homogeneously.
- the threaded rod deposits for example a layer 5 of 36 ⁇ of solution thickness.
- the solution is applied to one or both sides 20 and 21 of the banknote 1 by the coating or printing techniques mentioned below.
- This variant is particularly suitable in industrial production conditions.
- the MFC cellulose microfibril gel layer 5 is dried.
- the drying of the MFC cellulose microfibrils gel layer 5 is for example carried out by a hot air stream and / or in the open air in the laboratory. During drying, the solvent of the solution evaporates and the thickness of the layer 5 decreases.
- the first and second steps 40 and 41 are repeated at least once so as to form two or more layers of cellulose microfibril gel.
- the support 2 is then laminated, for example by a passage intaglio with or without ink, to restore a uniform and smooth surface state to the support 2.
- the varnish comprising the crystalline nanocellulose NCC is placed on the cellulose microfibrils gel layer 5 applied last, by the printing or coating technique.
- the coating layer 4 comprising NCC crystalline nanocellulose is for example applied by flexographic printing, gravure printing or screen printing methods, or even methods of coating with air knife, curtain coating or roller coating.
- the layer 4 of varnish comprising the crystalline nanocellulose NCC is dried.
- the drying of the layer 4 of varnish comprising the crystalline nanocellulose NCC is carried out under ultraviolet radiation.
- the varnish is a varnish comprising an epoxy or acrylate base, respectively cationic and radical polymerization.
- the drying of the lacquer layer 4 comprising the crystalline nanocellulose NCC is carried out by a stream of hot air. This embodiment is particularly advantageous when the varnish is a varnish comprising an aqueous base.
- the third and fourth steps 42 and 43 are repeated at least once so as to form two or more layers 4 of NCC crystalline nanocellulose and varnish.
- laminated MFC layers means that the MFC cellulose microfibrilayer layers are passed in non-inked intaglio.
- standard varnish means a varnish based on monomers of the family of cycloaliphatic epoxides which polymerize to give a polyepoxide matrix through initiators such as activated onium salts under ultraviolet.
- the Cobb bonding test makes it possible to characterize the hydrophobicity, that is to say the resistance of the banknote medium to the penetration of water, such as for example the water of sweat. It is more precisely the amount of water absorbed by the support in g / m 2 for a period of 60 seconds.
- the Fritsch test is used to characterize the resistance to soiling. The test of
- Fritsch is made by means of a vibrating apparatus where small glass beads come to spread and to incrust on the support a dirty composition based on sand, peat, activated charcoal, flour, and a fatty substance present in the sebum, the mono-oleate of glycerin, for 15 minutes.
- the luminance L * of the support is measured on several areas before and after the support has been exposed to the messy composition.
- the difference obtained AL * between the measurements before and after carrying out the test makes it possible to characterize the adhesion of the soil to the support.
- the smaller the gap the better the dirt resistance of the support.
- the "Test Kit” makes it possible to characterize the oleophobia of the support. It is a test during which the support is exposed to fatty substances, in particular a mixture of castor oil and high-boiling solvents, toluene and n-heptane. By varying the proportions of the aforementioned products, a composition is obtained in which the viscosity and the surface tension vary inversely with its impregnation capacity. Thus, a composition rich in castor oil is at the bottom of the scale, while a composition rich in solvents is at the top of the scale. this same scale. Twelve different compositions are generally used. The evaluation is done visually. It is accepted that a score greater than or equal to 6 confers a satisfactory barrier to fats. The results of this test are highly dependent on the surface condition of the media and the security impressions that cover it.
- the Bendtsen permeability test is used to characterize the air permeability of the support, ie the air flow through the support on a measurement surface of 10 cm 2 .
- the invention therefore has the advantage of providing a bank note 1 with greatly improved antifouling properties.
- Bank note 1 according to the invention may therefore be in circulation longer before withdrawal by central banks.
- the improvement of these antifouling properties is not to the detriment of the economic aspect, and does not use complex physical processes significantly increasing the cost of manufacturing the banknote 1.
- the MFC cellulose microfibrils and the NCC crystalline nanocellulose which are natural products have the undeniable advantage of not being able to be listed on the lists of substances subject to restriction under the REACH regulation defined by the European Agency. Chemicals (ECHA).
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Printing Methods (AREA)
- Credit Cards Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL14814894T PL3083263T3 (en) | 2013-12-20 | 2014-12-18 | Process for treating the surface of a security document and security document |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1363309A FR3015356B1 (en) | 2013-12-20 | 2013-12-20 | SURFACE TREATMENT METHOD OF A SAFETY DOCUMENT AND ASSOCIATED SECURITY DOCUMENT |
PCT/EP2014/078596 WO2015091873A1 (en) | 2013-12-20 | 2014-12-18 | Process for the surface treatment of a security document and associated security document |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3083263A1 true EP3083263A1 (en) | 2016-10-26 |
EP3083263B1 EP3083263B1 (en) | 2017-06-21 |
Family
ID=50729564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14814894.3A Active EP3083263B1 (en) | 2013-12-20 | 2014-12-18 | Process for treating the surface of a security document and security document |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP3083263B1 (en) |
KR (1) | KR102251250B1 (en) |
CN (1) | CN106103126B (en) |
AU (1) | AU2014368503B2 (en) |
CA (1) | CA2934631C (en) |
FR (1) | FR3015356B1 (en) |
PL (1) | PL3083263T3 (en) |
RU (1) | RU2671098C1 (en) |
WO (1) | WO2015091873A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3357706A4 (en) * | 2015-10-02 | 2018-10-03 | Toppan Printing Co., Ltd. | Counterfeit-preventing structure |
FR3087386B1 (en) * | 2018-10-22 | 2020-12-11 | Oberthur Fiduciaire Sas | SECURITY ELEMENT FOR A VALUE DOCUMENT, ITS MANUFACTURING PROCESS AND VALUE DOCUMENT CONTAINING IT |
DE102019129964A1 (en) * | 2019-11-06 | 2021-05-06 | Bundesdruckerei Gmbh | Security document with surface coating based on nanomaterials |
KR102654981B1 (en) * | 2021-12-30 | 2024-04-05 | 인하대학교 산학협력단 | The coating with structural color and anti-counterfeiting pattern security made by layer-by-layer assembly based on tunicate cellulose nano fibers and its manufacturing method |
IT202200009200A1 (en) * | 2022-05-05 | 2023-11-05 | Giuseppe Vitiello | FLAME RESISTANT, PHOTOLUMINESCENT, HYDROPHOBIC EPOXY RESIN-BASED PROTECTIVE COATING |
FR3136777A1 (en) | 2022-06-17 | 2023-12-22 | Oberthur Fiduciaire Sas | Use of an epoxy-silicone copolymer, crosslinkable fluid composition containing it and banknote coated with this composition |
Family Cites Families (14)
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JPS5428099B2 (en) | 1973-10-12 | 1979-09-13 | ||
US5629055A (en) | 1994-02-14 | 1997-05-13 | Pulp And Paper Research Institute Of Canada | Solidified liquid crystals of cellulose with optically variable properties |
FR2818582B1 (en) * | 2000-12-26 | 2003-07-04 | Francois Charles Oberthur Fidu | DEVICE FOR FLEXOGRAPHIC PRINTING OF SECURITY DOCUMENTS AND DOCUMENTS THUS OBTAINED |
ES2364249T3 (en) * | 2003-02-11 | 2011-08-29 | GIESECKE & DEVRIENT GMBH | SECURITY ROLE AND PROCEDURE TO MANUFACTURE IT. |
DE102005052672A1 (en) * | 2005-11-04 | 2007-05-10 | Giesecke & Devrient Gmbh | Resin impregnated security paper |
ITVR20080065A1 (en) * | 2008-06-10 | 2009-12-11 | Cartiere Fedrigoni & C Spa | PROCEDURE FOR ANTI-DRAFT TREATMENT OF BANKNOTES AND / OR SECURITY CARD IN GENERAL |
US8398901B2 (en) * | 2008-12-11 | 2013-03-19 | Fpinnovations | Method for producing iridescent solid nanocrystalline cellulose films incorporating patterns |
MX2011011554A (en) | 2009-05-01 | 2011-11-29 | Fpinnovations | Flexible, iridescent nanocrystalline cellulose film, and method for preparation. |
DE102009054406A1 (en) * | 2009-11-24 | 2011-05-26 | Giesecke & Devrient Gmbh | Value document with silicone resin coating and method for its production |
WO2012127110A1 (en) * | 2011-03-21 | 2012-09-27 | Upm-Kymmene Corporation | Process for preparing micro- and nanocrystalline cellulose |
CN102834259B (en) * | 2010-03-24 | 2016-01-20 | 凸版印刷株式会社 | Duplexer and manufacture method thereof and container molding |
US9376503B2 (en) * | 2010-09-07 | 2016-06-28 | Yissum Research Development Company Of The Hebrew University Of Jerusalem Ltd. | Cellulose-based composite materials |
FR2969034B1 (en) * | 2010-12-17 | 2014-02-21 | Oberthur Technologies | SAFETY DOCUMENT COMPRISING A REVERSIBLE MECANO LUMINESCENT COMPOUND |
GB2502955B (en) * | 2012-05-29 | 2016-07-27 | De La Rue Int Ltd | A substrate for security documents |
-
2013
- 2013-12-20 FR FR1363309A patent/FR3015356B1/en active Active
-
2014
- 2014-12-18 CA CA2934631A patent/CA2934631C/en active Active
- 2014-12-18 KR KR1020167019847A patent/KR102251250B1/en active IP Right Grant
- 2014-12-18 AU AU2014368503A patent/AU2014368503B2/en active Active
- 2014-12-18 WO PCT/EP2014/078596 patent/WO2015091873A1/en active Application Filing
- 2014-12-18 CN CN201480073836.2A patent/CN106103126B/en active Active
- 2014-12-18 RU RU2016129646A patent/RU2671098C1/en active
- 2014-12-18 EP EP14814894.3A patent/EP3083263B1/en active Active
- 2014-12-18 PL PL14814894T patent/PL3083263T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR3015356A1 (en) | 2015-06-26 |
KR102251250B1 (en) | 2021-05-12 |
RU2016129646A (en) | 2018-01-23 |
RU2671098C1 (en) | 2018-10-29 |
WO2015091873A1 (en) | 2015-06-25 |
CA2934631C (en) | 2022-09-20 |
AU2014368503A1 (en) | 2016-08-04 |
CA2934631A1 (en) | 2015-06-25 |
CN106103126B (en) | 2018-10-16 |
FR3015356B1 (en) | 2015-12-25 |
CN106103126A (en) | 2016-11-09 |
EP3083263B1 (en) | 2017-06-21 |
PL3083263T3 (en) | 2018-02-28 |
KR20160118240A (en) | 2016-10-11 |
AU2014368503B2 (en) | 2019-10-17 |
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