WO2005043254A1 - Method of personalizing metallic holographic layers applicable on substrates - Google Patents
Method of personalizing metallic holographic layers applicable on substrates Download PDFInfo
- Publication number
- WO2005043254A1 WO2005043254A1 PCT/IT2003/000701 IT0300701W WO2005043254A1 WO 2005043254 A1 WO2005043254 A1 WO 2005043254A1 IT 0300701 W IT0300701 W IT 0300701W WO 2005043254 A1 WO2005043254 A1 WO 2005043254A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- metallic
- writable
- microns
- adhesive
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000000758 substrate Substances 0.000 title claims abstract description 30
- 239000010410 layer Substances 0.000 claims abstract description 129
- 239000011888 foil Substances 0.000 claims abstract description 21
- 239000012790 adhesive layer Substances 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 7
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 230000002427 irreversible effect Effects 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910003087 TiOx Inorganic materials 0.000 claims description 2
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims 2
- 229920000058 polyacrylate Polymers 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000004049 embossing Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 pvc Polymers 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/18—Particular processing of hologram record carriers, e.g. for obtaining blazed 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
- B42D25/328—Diffraction gratings; Holograms
-
- 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
- G03H1/0252—Laminate comprising a hologram layer
-
- 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
- G03H2250/12—Special arrangement of layers
Definitions
- the present invention relates to a method of personalizing, by means of digital data, metallic holographic layers applied on paper, plastics substrates, glass, metal, wood, cotton etc., in correlation with the rest of the digital information printed in other areas of the document itself (data or pictures) .
- the present invention aims to improve the level of security of documents to which it is applied, to provide for a method of productions that offers optimum versatility and to allow for personalization / securizing of the final document product. Moreover, the present invention provides for a method that renders impossible the falsification of personalized data. More specifically, the first level of security is improved: th ⁇ s means that somebody can verify visually and without any checking tool if the document and/o_r the product is genuine or not .
- the method can be applied in particular to various substrates in the form of: ID cards, passports, D.L., visas, social cards, money or credit cards and all kind of documents or products that are subject to
- the metallic holographic layers which can be personalized by means of a laser source, can be
- the present invention comprises also a metallic
- FIG. 1 shows a schematic representation of one o£ the preferred embodiments of the present invention
- FIG. 2 shows a schematic example of a substrate on which the layer of the embodiment of figure 1 is applied;
- FIG. 3 shows a schematic representation of a second preferred embodiment of the present invention
- FIG. 4 shows a schematic representation of a third preferred embodiment of the present invention.
- FIG. 5 shows an example of a holographic grating according to the present invention in which its maximum reflection intensity is seen at a certain angles from the vertical or from the horizontal of the document's surface to be protected.
- metallic layer is transferred onto the substrate (paper used for money, checks, shares, certificates, plastics like pvc, ABS, pet, polycarbonate, photographic layers, ink-jet layers, glass, gelatin layers, wood, cotton) to protect by means of hot stamping transferring process.
- substrate paper used for money, checks, shares, certificates, plastics like pvc, ABS, pet, polycarbonate, photographic layers, ink-jet layers, glass, gelatin layers, wood, cotton
- the metallic writeable foil 10 is transferred onto the document's surface by a process of hot stamping, by means of a heated die or rubber die.
- the writeable foil 10 is composed by the following layer structure: Layer 1, is a film carrier, namely a PET or pp, ' pvc, polycarbonate film (film carrier afterwards) , with thickness between 6 and 100, but preferably 19 microns or 23 microns.
- Layer 2 is the releasing layer, with thickness from 0,001 to 2 microns, but typically 0,1 microns.
- the releasing layer is composed of thermoplastic polymers that melt above the temperature of 80°C, releasing off the remaining layers from 3 to 5.
- the releasing layer is between the film carrier layer 1 and the holographic grating layer 3, the latter being subsequently described.
- Layer 3 is a layer with holographic grating recorded microstructure .
- Layer 3 is composed by polymers that have a Tg above 150°C, with thickness ranging between 0,2 - 3 microns, but typically 0,6 - 0,7 microns.
- the layer 3 has recorded on it, by means of mechanical embossing process, the holographic grating microstructure.
- Layer 4 is a metallic layer.
- the total thickness of the metallic layer 4 can vary from 10 to 2000 angstrom, depending on the type of metal layer (typically 400 for aluminium) .
- Layer 5 is an irreversible heat activated adhesive.
- the adhesive layer 5 is composed by polymers that have a thickness variable from 1 micron for plastic non porous substrates to 20 microns, depending on the substrate.
- the adhesive is characterized by a Tg between 30 and 100°C but preferably 50°C.
- the metallic writable foil 10 normally in roll format, is positioned under the heated die or roller (metallic or plastic type) ; the heated die or roller is brought into contact with the foil from the film carrier side, being applied also a pressure that forces the foil 10 to be in contact, with the adhesive layer 5, with the document/substrate surface.
- the heat is then transferred through the layers from 1 to 5, activating the adhesive. All the layers from 2 to 5 are transferred onto the document/substrate where pressure and heat have been applied.
- Figure 2 shows a schematic example of a substrate 11 on which the layer 13 of the embodiment of figure 1 is applied, while on area 12 digital printed variable data can be applied.
- the area 12 is the area in which the writable metallic foil is transferred by means of hot stamping: the area 12 can also cover the entire document to protect .
- a second embodiment of the present invention provides for the fact that the metallic layer is transferred onto the substrate to protect in a form of a sticker, namely a self adhesive label.
- the writable foil 20 is composed by the following layer structure:
- Layer 21 is the film carrier, of which various thicknesses are possible, from 6 to 150 microns.
- Layer 22 is a layer with holographic grating recorded microstructure. This layer is composed by thermoplastic polymers that have a Tg above 100 but preferably 150°C, with thickness ranging between 0,2 - 3 microns, but tipically 0,6 - 0,7 microns.
- Layer 22 has recorded, by means of mechanical embossing process, the holographic grating microstructure.
- Layer 23 is a metallic layer.
- the total thickness of the metallic layer 23 can vary form 10 to 2000 angstrom, depending on the type of metal layer (typically 400 for aluminium) .
- Layer 24 is a pressure sensitive adhesive liner and layer 25 is a protection backing liner.
- the stickers, in a roll form or in sheets, are removed from the backing liner 25 and applied on the documents/substrates to be protected. This can be done manually or by the use of automatic label application machines.
- a third embodiment of the present invention provides for the fact that metallic layer is transferred onto the substrate to protect in a form of a laminate (film carrier + heat activated adhesive or wet gluing
- the writable foil 30 is composed by the following layer structure :
- Layer 31 is a plastic film carrier (pet, pp, pvc, petg, pc etc.) of various thicknesses possible from 6 to 175 microns, but preferably 23 microns.
- Layer 32 is a layer with holographic grating recorded microstructure .
- Layer 32 is composed by polymers that have a Tg above 100°C but preferably 150°C, with thickness ranging between 0,2 - 3, but typically 0,6 - 0,7 microns.
- the layer has recorded, by means of mechanical embossing process, the holographic grating microstructure.
- Layer 33 is a metallic layer. The total thickness of the metallic layer can vary from 10 to 2000 angstrom, depending on the type of metal layer (typically 400 for aluminium) .
- Layer 34 can be a heat-activated adhesive, that, depending on the polymer type (normally PE, EVA copolymers, PVC) , can be applied by means of extrusion coating technique and after melted with heat and welded with the substrate of destination; layer 34 can be also be a 2K wet glue applied between layer 33 and the document/substrate. The thickness of this layer can vary from 20 to 150 (preferably 50) microns . Layer 34 is positioned under the metallic layer 33.
- the metallic writable foil 30, normally in label format, is positioned under the heated die or roller (metallic or plastic type) : the heated die or roller is brought into contact with the foil from the carrier side, being applied also a pressure that forces the foil to be in contact with the adhesive layer with the document surface. The heat is then transferred through the layers (from 31 to 34) , activating the adhesive. The foil is welded with trie document.
- the laminate can be applied to the document surface also gluing them together by means of two-components wet polyurethane glue .
- the digital personalization process of the metallic layer can take place before or after the layer has been applied onto the document.
- All the standard printed variable data and picture can be printed, in the correspondent area by mean of toner printing system, ink jet system, D2T2 (dye diffusion thermal transfer) , photographical techniques, wax printing (TTR ribbons) or laser engraving.
- the laser beam passing trough all the top layers removes the metallic area where it is focalised .
- the laser can remove the metallic layer in the areas interested reproducing digitally variable data (images or writings or combination of both) .
- pictures and/or the name of the person who the document belongs to can be reproduced either in a positive or in negative mode.
- the metallic layer can be composed by opaque metals such as aluminium, bismuth, copper or by a transparent layer (such as ZnS, ZrS, SiOx, TiOx, ) or by a multilayer mixed construction of the above materials.
- the total thickness of the metallic layer can vary from 20 to 1000 angstrom.
- the pattern of the hologram giving the best results are continuous and uniform gratings like rainbow patterns or even reflecting areas, best reflecting at different angles by rotating vertically or horizontally, but of course any type of pattern can be used.
- This type of proposed hologram can be combined with any type of computer originated holograms (such as kinegram, exelgram, movigram, Swissgram) and/or traditional reflection/transmittance holograms or a combination of the techniques.
- any type of computer originated holograms such as kinegram, exelgram, movigram, Swissgram
- traditional reflection/transmittance holograms or a combination of the techniques.
- Holographic grating can also be constructed in the way that its maximum reflection intensity is seen at a certain angles from the vertical or from the horizontal of the document's surface to be protected: for instance between 45°and 90° vertically, as shown schematically in Figure 5. So normally when looking at the document the observer does not see the holographic grating looking at it from the vertical, but the document has to be turned around its axis of at least 45°.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IT2003/000701 WO2005043254A1 (en) | 2003-10-30 | 2003-10-30 | Method of personalizing metallic holographic layers applicable on substrates |
AU2003283822A AU2003283822A1 (en) | 2003-10-30 | 2003-10-30 | Method of personalizing metallic holographic layers applicable on substrates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IT2003/000701 WO2005043254A1 (en) | 2003-10-30 | 2003-10-30 | Method of personalizing metallic holographic layers applicable on substrates |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005043254A1 true WO2005043254A1 (en) | 2005-05-12 |
Family
ID=34531873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2003/000701 WO2005043254A1 (en) | 2003-10-30 | 2003-10-30 | Method of personalizing metallic holographic layers applicable on substrates |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2003283822A1 (en) |
WO (1) | WO2005043254A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2908223A1 (en) * | 2006-11-07 | 2008-05-09 | Hologram Ind Sarl | METHOD FOR MANUFACTURING SECURE PROTECTIVE FILMS AND RELATED FILMS FOR THE PROTECTION OF IDENTITY DOCUMENTS |
EP1956414A1 (en) | 2007-02-09 | 2008-08-13 | Leo Vermeulen Consulting LVC | Lenticular foils or linear Fresnel lenses provided with a highly refractive layer |
ITMI20090931A1 (en) * | 2009-05-27 | 2010-11-28 | Ct Grafico Dg S P A | ANTI-COUNTERFEITING DEVICE FOR VALUE DOCUMENTS AND ITS SAFETY SUPPORT |
US10112434B2 (en) | 2008-05-16 | 2018-10-30 | Entrust Datacard Corporation | Shadow image security feature |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4856857A (en) * | 1985-05-07 | 1989-08-15 | Dai Nippon Insatsu Kabushiki Kaisha | Transparent reflection-type |
US5331443A (en) * | 1992-07-31 | 1994-07-19 | Crown Roll Leaf, Inc. | Laser engraved verification hologram and associated methods |
US5759683A (en) * | 1994-04-04 | 1998-06-02 | Novavision, Inc. | Holographic document with holographic image or diffraction pattern directly embossed thereon |
-
2003
- 2003-10-30 WO PCT/IT2003/000701 patent/WO2005043254A1/en active Application Filing
- 2003-10-30 AU AU2003283822A patent/AU2003283822A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4856857A (en) * | 1985-05-07 | 1989-08-15 | Dai Nippon Insatsu Kabushiki Kaisha | Transparent reflection-type |
US5331443A (en) * | 1992-07-31 | 1994-07-19 | Crown Roll Leaf, Inc. | Laser engraved verification hologram and associated methods |
US5759683A (en) * | 1994-04-04 | 1998-06-02 | Novavision, Inc. | Holographic document with holographic image or diffraction pattern directly embossed thereon |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2908223A1 (en) * | 2006-11-07 | 2008-05-09 | Hologram Ind Sarl | METHOD FOR MANUFACTURING SECURE PROTECTIVE FILMS AND RELATED FILMS FOR THE PROTECTION OF IDENTITY DOCUMENTS |
EP1956414A1 (en) | 2007-02-09 | 2008-08-13 | Leo Vermeulen Consulting LVC | Lenticular foils or linear Fresnel lenses provided with a highly refractive layer |
US10112434B2 (en) | 2008-05-16 | 2018-10-30 | Entrust Datacard Corporation | Shadow image security feature |
ITMI20090931A1 (en) * | 2009-05-27 | 2010-11-28 | Ct Grafico Dg S P A | ANTI-COUNTERFEITING DEVICE FOR VALUE DOCUMENTS AND ITS SAFETY SUPPORT |
WO2010137049A1 (en) * | 2009-05-27 | 2010-12-02 | Centro Grafico Dg S.P.A. | Anti-counterfeit device for valuable documents |
Also Published As
Publication number | Publication date |
---|---|
AU2003283822A1 (en) | 2005-05-19 |
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