EP3140127A1 - Mehrschichtkörper und verfahren zu dessen herstellung - Google Patents
Mehrschichtkörper und verfahren zu dessen herstellungInfo
- Publication number
- EP3140127A1 EP3140127A1 EP15724532.5A EP15724532A EP3140127A1 EP 3140127 A1 EP3140127 A1 EP 3140127A1 EP 15724532 A EP15724532 A EP 15724532A EP 3140127 A1 EP3140127 A1 EP 3140127A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- partial
- μιτι
- multilayer body
- metal layer
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 46
- 239000010410 layer Substances 0.000 claims abstract description 403
- 229910052751 metal Inorganic materials 0.000 claims abstract description 131
- 239000002184 metal Substances 0.000 claims abstract description 131
- 230000036961 partial effect Effects 0.000 claims abstract description 118
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000004922 lacquer Substances 0.000 claims description 101
- 230000003287 optical effect Effects 0.000 claims description 52
- 238000005530 etching Methods 0.000 claims description 34
- 229920002120 photoresistant polymer Polymers 0.000 claims description 25
- 239000000049 pigment Substances 0.000 claims description 24
- 238000007639 printing Methods 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 20
- 230000010076 replication Effects 0.000 claims description 19
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 9
- 239000000975 dye Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- 238000007641 inkjet printing Methods 0.000 claims description 7
- 239000002105 nanoparticle Substances 0.000 claims description 7
- 239000010409 thin film Substances 0.000 claims description 7
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- 239000000020 Nitrocellulose Substances 0.000 claims description 5
- 238000007648 laser printing Methods 0.000 claims description 5
- 239000002086 nanomaterial Substances 0.000 claims description 5
- 229920001220 nitrocellulos Polymers 0.000 claims description 5
- 238000007645 offset printing Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000007650 screen-printing Methods 0.000 claims description 5
- 238000001429 visible spectrum Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000007644 letterpress printing Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000007649 pad printing Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 238000002329 infrared spectrum Methods 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- 239000000025 natural resin Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000002211 ultraviolet spectrum Methods 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 2
- 238000000608 laser ablation Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 9
- 239000011247 coating layer Substances 0.000 abstract description 4
- 239000003973 paint Substances 0.000 description 12
- 238000012546 transfer Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000004800 polyvinyl chloride Substances 0.000 description 7
- 229920000915 polyvinyl chloride Polymers 0.000 description 7
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
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- 238000007740 vapor deposition Methods 0.000 description 5
- 238000003848 UV Light-Curing Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 238000000844 transformation Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000000976 ink Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 238000009210 therapy by ultrasound Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009993 protective function Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000003847 radiation curing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 208000031872 Body Remains Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- NUFNQYOELLVIPL-UHFFFAOYSA-N acifluorfen Chemical group C1=C([N+]([O-])=O)C(C(=O)O)=CC(OC=2C(=CC(=CC=2)C(F)(F)F)Cl)=C1 NUFNQYOELLVIPL-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003098 cholesteric effect Effects 0.000 description 1
- 150000001851 cinnamic acid derivatives Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001227 electron beam curing Methods 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/28—Printing on other surfaces than ordinary paper on metals
-
- 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
- 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
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
-
- 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
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0058—Digital printing on surfaces other than ordinary paper on metals and oxidised metal surfaces
-
- 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
- B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
-
- 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
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- 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
- B42D25/337—Guilloche patterns
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- 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
-
- 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
- B42D25/364—Liquid crystals
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- 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
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- 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
- B42D25/382—Special inks absorbing or reflecting infrared light
-
- 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
- B42D25/387—Special inks absorbing or reflecting ultraviolet light
-
- 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
- B42D25/43—Marking by removal of material
-
- 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
- B42D25/43—Marking by removal of material
- B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
-
- 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
- B42D25/43—Marking by removal of material
- B42D25/445—Marking by removal of material using chemical means, e.g. etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
- B44F1/10—Changing, amusing, or secret pictures
Definitions
- the invention relates to a multilayer body and a method for its production.
- Multi-layer body as a security element are known in the art as known and are widely for counterfeit protection of banknotes, securities, identity documents or even for
- register is the positionally accurate arrangement of superimposed or adjacent layers relative to each other while maintaining a desired positional tolerance to understand.
- register derives from the register marks or tax stamps used for measuring and controlling the position tolerance.
- Multi-layer body different layers each to be arranged in register with each other.
- Such a method for producing a multilayer body comprises the steps of: a) producing a metal layer on a substrate; b) partially demetallizing the metal layer to form a first optical information in a first region of the multilayer body; c) applying a partial lacquer layer in a second region of the multilayer body to form a second optical information, wherein the partial lacquer layer at least partially extends beyond the metal layer; d) structuring the partial metal layer in the second area below
- Metal layer and a partial lacquer layer comprises, and wherein the partial metal layer in a first region forms a first optical information and the partial lacquer layer in a second region forms a second optical information and the partial lacquer layer in the second region in the perfect register, ie without the above-mentioned Tolerances, is arranged to the partial metal layer.
- a multi-layer body obtainable in this way can be used as a security element, in particular for a security document, in particular a banknote, a security, an identity document, a visa document, a passport, a vignette, a certificate or a credit card.
- Multi-layer body can be carried out in different ways. This increases the design options for the multilayer body. For example, in the first area, demetallization can be performed in the register to a different layer than in the second area. This makes particularly complex and appealing designs possible.
- the two layers it is possible to arrange the two layers exactly in register with each other.
- the partial lacquer layer it is of particular importance that the partial lacquer layer not only extends into those areas that are covered by the metal layer, but also into the areas not covered by the metal layer.
- the partial lacquer layer thus partially overlaps the metal layer, perpendicular to a surface spanned by the metal layer or the partial lacquer layer.
- step b) it is also possible in step b) to partially demetallize the metal layer to form a first and second region of the metal layer
- step c) a partial lacquer layer in the first and / or second region of the multi-layer body to form a first optical information in the first region and / or a second optical information in the second region, wherein the partial lacquer layer extends at least partially beyond the metal layer in the first and / or second region.
- the final structuring of the metal layer thus takes place optionally in both areas on the basis of the partial lacquer layer.
- the partial demetallization of the metal layer is preferably carried out by etching. It is expedient if the partial lacquer layer is an etching resist or comprises an etching resist.
- An etch resist is to be understood as meaning a substance which is resistant to an etchant and which is one with respect to the etchant
- an etchant is applied to the resulting layer stack, which is the Metal layer removed where it is not covered by the partial paint layer.
- the etch resist is preferably a paint, which in particular binders, dyes, pigments, especially colored or achromatic pigments,
- Effect pigments, thin film layer systems, cholesteric liquid crystals and / or metallic or non-metallic nanoparticles may include.
- the partial lacquer layer not only fulfills a protective function when structuring the metal layer, but can itself develop a decorative effect. It is also possible that several different etch resists, for example different color resist films, may be used to create further visual effects.
- resist coatings can also be designed in such a way that they serve as a manipulation indicator during manipulation attempts on the security document. For example, it can be tried with organic
- Solvents or oxidizing agents to modify or remove an entry, such as a date of validity or a photo, or to make invisible can be designed to be soluble in alcohols so that they dissolve when exposed to alcohol and the dye migrates, so that the printed image of the etching resist visibly noticeable flows or blurs.
- resist coatings may contain other substances that are visually recognizable when exposed to certain chemicals
- Color reaction e.g. show a color change.
- Such substances are known, for example, as "solvent reactive inks”.
- the etchant used to pattern the metal layer depends on the composition of this layer or this layer system. It is for example sodium hydroxide, potassium hydroxide,
- Sodium carbonate, tetramethylammonium hydroxide or sodium ethylenediaminetetraacetate e.g., sodium carbonate, tetramethylammonium hydroxide or sodium ethylenediaminetetraacetate.
- acidic etching media such as sulfuric acid, for example.
- Hydrochloric acid, phosphoric acid or strong oxidizing agents such as
- sodium persulfate, hydrogen peroxide, or a temporal sequence of different etching media or a combination of the aforementioned media For example, sodium persulfate, hydrogen peroxide, or a temporal sequence of different etching media or a combination of the aforementioned media.
- etchants are, for example ⁇ tzresiste based on PVC (polyvinyl chloride), polyester resins, acrylates, which typically further film-forming substances such as nitrocellulose may be mixed.
- PVC polyvinyl chloride
- polyester resins polyester resins
- acrylates which typically further film-forming substances such as nitrocellulose may be mixed.
- the etching can be assisted by mechanical agitation, for example by brushing, moving the etching bath or ultrasonic treatment.
- Usual temperatures for the etching process are preferably between 15 ° C and 75 ° C.
- the metal layer is partially demetallised in the second region.
- the metal layer is then only partially present in the second region, so that the partial lacquer layer extends partially over the metal layer and partly in regions in which the metal layer is not present. This ensures that the above-mentioned effect can be achieved after the structuring of the metal layer on the basis of the partial lacquer layer.
- the Partial demetallization is preferably carried out relatively coarsely structured, while finer structures are introduced only in step d).
- the partial demetallization of the metal layer in the second region preferably takes place by etching.
- Demetall is described in the first area etchant and
- an etchant in particular a caustic, is printed on the metal layer, in particular by flexographic printing or gravure printing or screen printing.
- the etchant thus comes into contact only with the metal layer in the areas to be removed, so that no protective lacquers, resists, masks or the like are necessary.
- a photoresist is applied to the second area and exposed using an exposure mask.
- a photoresist changes when exposed in a particular
- Solvent which can be used after exposure to develop the photoresist.
- the exposure step following the exposure is selective
- Suitable positive photoresists are, for example, AZ 1518 or AZ 4562 from AZ Electronic Materials based on phenolic resin / diazoquinone.
- Suitable negative photoresists are, for example, AZ nLOF 2000 or ma-N 1420 from micro resist technology GmbH, for example based on
- Cinnamic acid derivatives These can preferably be exposed by irradiation with light in a wavelength range of 250 nm to 440 nm.
- the required dose depends on the respective layer thickness, the
- Tetramethylammonium Tetramethylammonium.
- the development is preferably carried out at temperatures of 15 ° C to 65 ° C for a preferred development time of 2 seconds to a few minutes. Again, the development process and the associated local removal of the photoresist again by mechanical agitation, such as brushing, wiping,
- the photoresist may in particular contain binders, dyes, pigments, in particular colored pigments, effect pigments, thin-film layer systems, cholesteric liquid crystals and / or metallic or non-metallic nanoparticles in order to fulfill additional decorative effects. It is expedient for the exposure mask to be formed by a further partial lacquer layer applied to the substrate before the metal layer is applied. The exposure takes place then of the
- Substrate side. This serving as an exposure mask coating layer can for Visible light must be transparent, translucent or opaque, but must
- Block exposure wavelength (for example, in the ultraviolet spectral range) so strong that a masking function or a contrast difference in the exposure can be achieved.
- the further partial lacquer layer comprises a protective lacquer.
- a protective lacquer should be understood to mean a substance which was used in one for exposing the photoresist
- Absorbed wavelength range During the exposure, the partial layers are irradiated over the whole area with light of this wavelength range, preferably perpendicular to the layer plane.
- Typical wavelengths used for the exposure are for example 250 nm to 420 nm.
- the exposure takes place at a dose of 10 mJ / cm 2 to 500 mJ / cm 2 .
- the exposure times result from the sensitivities of the materials used and the power of the available exposure source.
- Lacquer layer can be structured.
- an etching resist is partially applied to the second region before the etching and is removed again after the etching. The etching then takes place as already described in the structuring of the first region.
- a partial layer of a washcoat is applied to the substrate before the metal layer is applied and removed after application of the metal layer by means of a solvent.
- the washcoat must therefore be soluble in the solvent.
- washcoats are based for example on the basis of polyvinyl alcohol (PVA) or polyvinylpyrrolidone (PVP) and may additionally contain fillers which facilitate the subsequent removal of the washcoat.
- PVA polyvinyl alcohol
- PVP polyvinylpyrrolidone
- the removal of the washcoat takes place in a solvent bath or by spraying with solvent, preferably at temperatures of 15 ° C to 65 ° C. As with etching, the removal of the washcoat can
- the metal layer In areas where the metal layer is applied to the washcoat, the metal layer is removed along with the washcoat. The metal layer thus remains only in areas where it does not overlap with the partial layer of washcoat. So it creates a negative to the
- the partial demetallization of the metal layer in the second region is effected by laser ablation. This makes it possible, in particular, to easily produce individualized multilayer bodies which differ in the shape of their partial metal layers. For example, personalization information can be introduced into the multilayer body.
- Another possibility for partially demetallizing the metal layer in the second region is the application, in particular printing, of a partial oil layer before the metal layer is applied.
- the metal does not adhere to the substrate during application of the metal layer, for example by vapor deposition or sputtering, so that the desired structuring is already achieved during the production of the metal layer.
- first and second regions are, for example, about 1 cm 2 to 5 cm 2 in size.
- the partial lacquer layer may completely or only partially overlap with the metal layer of the first and / or second region.
- the partial lacquer layer extends not only into those areas which are covered by the metal layer of the first and / or second area, but also into the areas not covered by the metal layer.
- the partial lacquer layer thus overlaps the metal layer of the first and / or second region completely or only partially, perpendicular to a surface spanned by the metal layer or the partial lacquer layer.
- first region and the second region can be structured largely independently of one another, but fewer process steps are required.
- Metal layer of the first and / or second area can be in the first and second area different visual appearances of
- the substrate is or comprises a replication layer with a surface relief formed in a surface facing the metal layer.
- the replication layer may be made of a thermoplastic, i. thermally curable or dryable replicate varnish or a
- the material introduced into the replication layer surface relief forms an optically variable element, in particular a hologram, Kinegram ® or Trustseal ®, a preferably linear or crossed sinusoidal
- Diffraction grating a linear or crossed one or more stages
- Rectangular grating a zero-order diffraction structure, an asymmetric sawtooth relief structure, a blaze grating, a preferably isotropic or anisotropic matt structure, or a diffractive and / or refractive and / or light-focusing micro or nanostructure, a binary or continuous Fresnel lens, a binary or continuous Fresnel freeform surface, a microprism structure or a combination structure thereof.
- the surface relief comprises a subregion with a depth-to-width ratio of 0.15 to 1.5, preferably 0.2 to 0.5, which is complementary to the first optical information.
- the depth-to-width ratio can be used to vary the transparency of a metal layer applied to the surface relief. This differently transparent metal layer can therefore serve in the sequence itself as an exposure mask to structure a further layer.
- Structuring thus takes place in the register to the differently transparent areas of the metal layer and thus to the different areas of the surface relief, so that seamless transitions between different areas of the surface relief and the other layer result.
- Metal layer in the first region a photoresist is applied to the metal layer and exposed from the side of the substrate and the metal layer is then partially demetallized by etching.
- the photoresists and etchant correspond to the variants described above. In this way, the metal layer itself is patterned in register with the surface relief.
- At least one further partial lacquer layer is preferably applied to the multilayer body in order to form at least one further optical information. This makes it possible to realize complex and appealing designs that make the production of a particularly tamper-proof
- a layer thickness of the partial lacquer layer and / or the at least one further partial lacquer layer 0.2 ⁇ to 10 ⁇ , preferably 0.3 ⁇ to 3 ⁇ , more preferably 0.5 ⁇ to 1, 5 ⁇ .
- the at least one further partial lacquer layer colorants especially colorful or achromatic pigments and / or
- the partial lacquer layer and / or the at least one further partial lacquer layer by printing, in particular by intaglio printing, flexographic printing, offset printing, letterpress printing, screen printing, pad printing,
- the partial lacquer layer and / or the at least one further partial lacquer layer is radiation-cured, in particular by UV or electron radiation.
- at least one customizing feature is preferred
- Multi-layer body is applied, in particular by inkjet and / or laser printing.
- the multi-layer body a
- the substrate has a wax layer and / or a release layer and / or a protective layer, in particular a
- Protective lacquer layer includes.
- Wax and release layers may be of the detachable assembly of the
- the layer structure can also be designed such that detachment from the carrier is prevented.
- the multi-layer body remains on the carrier, or the carrier is a part of the multi-layer body, which is transferred to the security document.
- the wax layer and the peel layer are eliminated since peeling need not be ensured.
- additional layers can be incorporated to ensure increased interlayer adhesion between the support and the replication layer.
- the wax layer can be present only partially, so that only local detachment can take place, while in other areas no detachment takes place. The application to a security document takes place again
- Such structures are for example used to display manipulation attempts. Is that trying to display manipulation attempts.
- the layer composite can be solved together with the carrier from the substrate.
- the security feature is visibly damaged by this manipulation attempt.
- the multi-layer body can be transferred to a substrate, which is processed in a later step to a security document.
- the multilayer body for example, on a transparent, translucent or opaque plastic läge, in particular polycarbonate or polyester, polypropylene or polyethylene, such as Teslin ® are applied, which are connected in further processing steps with other plastic layers to a document body, for example by lamination and / or back injection.
- Typical thicknesses of the plastic layers are between 25 ⁇ and 150 ⁇ , preferably between 50 ⁇ and 100 ⁇ .
- the layers can be transparent or contain fillers. Furthermore, they can be designed such that they can be blackened by means of a laser beam.
- the protective layer which may also be of multilayer design, preferably forms a visible side of the multilayer body, so that it is protected against mechanical or chemical damage.
- a protective coating for example, acrylate or polyester with additional
- film-forming components such as nitrocellulose, UV-curing Systems, chemically curing systems, for example based on isocyanate, find use.
- a layer thickness of the replication layer and / or the protective lacquer layer is preferably 0.3 ⁇ m to 3 ⁇ m, preferably 0.5 ⁇ m to 1.5 ⁇ m.
- a layer thickness of the wax layer and / or the release layer is preferably 0.01 ⁇ m to 0.3 ⁇ m, preferably 0.1 ⁇ m to 0.2 ⁇ m.
- the release layer may also be part of the protective lacquer layer.
- the substrate comprises a removable carrier layer, in particular of PET, PEN or PP. This protects the substrate
- a layer thickness of the carrier layer 5 is ⁇ to 75 ⁇ , preferably 10 ⁇ to 50 ⁇ , more preferably 12 ⁇ to 25 ⁇ .
- the partial metal layer consists of aluminum, copper, chromium, silver and / or gold and / or an alloy thereof.
- Metal layer may also consist of different metals in some areas to produce special optical effects.
- a layer thickness of the metal layer is 10 nm to 200 nm, preferably 10 nm to 50 nm, more preferably 15 nm to 35 nm. It is also advantageous if in the first region a particularly transparent protective lacquer layer, in particular of PVC, PET, acrylate, nitrocellulose, Celluloseseacetobutyrat, or mixtures thereof, on the partial
- the protective layer may also consist of a UV or electron beam curing lacquer.
- Such a protective lacquer layer can protect the metal layer in the first region during the structuring of the second region, so that the structures first introduced in the first region are retained.
- a layer thickness of the protective lacquer layer is 0.2 ⁇ m to 10 ⁇ m, preferably 0.3 ⁇ m to 3 ⁇ m, more preferably 0.5 ⁇ m to 1, 5 ⁇ m.
- first and / or second and / or further optical information in the form of at least one motif, pattern, in particular a guilloche pattern, symbol, image, logo or alphanumeric characters, in particular numbers and / or letters, is formed.
- the optical information can also be added to such a motif, pattern, symbol, image, logo or alphanumeric characters, in particular numbers or letters.
- a generated graphic element which results from the interaction of several layers, is particularly difficult to reproduce and therefore particularly tamper-proof.
- the first and / or second and / or further optical information to be in the form of a one- or two-dimensional line and / or dot screen, the line and / or dot screen preferably has a grid of less than 300 ⁇ , preferably of less than 200 ⁇ and more than 25 ⁇ , preferably more than 50 ⁇ .
- transformed line grids are possible, for example with wavy lines, which can also have a variable line width.
- the points of a dot matrix can have any geometries and / or sizes and need not be circular disk-shaped. For example, dot patterns of triangular, rectangular, arbitrary polygonal, star-shaped or in the form of symbols formed points are possible.
- the dot matrix can also be brewed from differently sized and / or differently shaped dots. Especially when such a grid interacts with a graphic element in the respective other layer or in the respective other layer system, further graphic effects, such as halftone images, can be generated.
- Information at least one machine-readable feature, in particular a barcode.
- an adhesive layer in particular of PVC, polyester, Acrylates, cellulose esters, natural resins, ketone resins, polyamide, polyurethane, epoxy resins, or mixtures thereof. This serves the
- a layer thickness of the adhesive layer 0.5 ⁇ to 25 ⁇ , preferably 1 ⁇ to 15 ⁇ amounts.
- the adhesive layer can also be multi-layered, in particular made of different materials, wherein the aforementioned layer thickness values the total thickness of
- additional layers can be applied which, for example, improve interlayer adhesion or increase stability.
- additional layers can be applied which, for example, improve interlayer adhesion or increase stability.
- chemically crosslinking layers or radiation-curing lacquers are particularly suitable.
- a composite with the substrate to which the feature is to be applied can be achieved, for example, by printing a UV-curing adhesive on the substrate, pressing the multi-layer body onto the adhesive, and curing the UV-curing adhesive by means of UV irradiation , The carrier film made of PET can then be removed (cold foil or cold embossing).
- reflective layers made of a high-refractive index material can be applied at least in some areas.
- high-index materials are zinc sulfide or titanium dioxide, which are usually applied by vapor deposition or sputtering.
- Such layers can be applied before the application of the metal layers or after their partial metallization or after printing processes. Are located If these layers are directly on diffraction - optical structures, further optical effects can be achieved which enhance the security of the
- Such diffractive optical structures can, for example
- Zero-order diffraction structures that allow for color change in the direct reflection (zero order) upon rotation of the OVD by 90 degrees in the plane.
- an information "OK” in the normal viewing position appears green on a red background, after rotation of the OVD, in particular by 90 degrees in the plane, the "OK” appears red on a green background (others
- ZnS as high-index material with a layer thickness in the range from 40 nm to 100 nm.
- Spatial frequency range for zero-order diffraction structure 2500 lines / mm to 3100 lines / mm.
- FIG. 1A-B A first intermediate in the implementation of a
- Multilayer body in a schematic plan view and sectional view
- FIG. 2A-B A second intermediate in the implementation of a
- Multilayer body in a schematic plan view and sectional view
- FIG. 3A-B A third intermediate in the implementation of a
- Multilayer body in a schematic plan view and sectional view
- FIG. 4A-B A fourth intermediate in the implementation of a
- Multilayer body in a schematic plan view and sectional view
- FIG. 5A-B A fifth intermediate in the implementation of a
- FIG. 6 An embodiment of a security document with a multilayer body according to FIG. 6.
- Product packaging can be found first, a
- Carrier layer 1 1 provided with a transfer layer 12.
- the carrier layer 1 1 is preferably made of polyester, in particular PET and has a layer thickness of 6 ⁇ to 75 ⁇ , preferably 12 ⁇ to 25 ⁇ on.
- the transfer layer 12 may comprise a wax layer, a release layer, a protective lacquer layer and a replication layer, which forms the surface of the transfer layer 12 facing away from the carrier layer 11.
- a layer thickness of the replication layer and / or the protective lacquer layer is preferably 0.3 ⁇ m to 3 ⁇ m, preferably 0.5 ⁇ m to 1.5 ⁇ m.
- a layer thickness of the wax layer and / or the release layer is preferably 0.01 ⁇ m to 0.3 ⁇ m, preferably 0.1 ⁇ m to 0.2 ⁇ m.
- layers of silicone or a Acrylic polymer / acrylic copolymer can be used.
- the release layer may also be part of the protective lacquer layer.
- the replication layer consists for example of a thermoplastic or a radiation or temperature-curable replicate. Diffractive structures are then formed in the replication layer, for example by embossing with a metallic embossing tool.
- the material introduced into the replication layer surface relief forms an optically variable element, in particular a hologram, Kinegram ® or Trustseal ®, a preferably linear or crossed sinusoidal
- Diffraction grating a linear or crossed one or more stages
- Rectangular grating a zero-order diffraction structure, an asymmetric relief structure, a Blaze grating, a preferably isotropic or anisotropic, matt structure, or a light-diffractive and / or refractive and / or light-focusing micro or nanostructure, a binary or continuous Fresnel lens, a binary or continuous Fresnel freeform surface, a microprism structure or a combination structure thereof.
- the surface relief in a first region 2 of the multilayer body forms a first optical one
- Information is formed by structures with a depth to width ratio of 0.15 to 1, 5, preferably from 0.2 to 0.5, and a spatial frequency preferably at least 1000 lines / mm to 5000 lines / mm ,
- a transfer layer 12 is formed on the replication layer
- Metal layer 13 is generated, which for example by vapor deposition on a not shown substrate can be done.
- the vapor deposition is preferably carried out in vacuo by thermal evaporation, by means of
- the metal layer 13 may preferably consist of aluminum, copper, chromium, silver and / or gold and / or an alloy thereof.
- Metal layer may also consist of different metals in some areas to produce special optical effects.
- a layer thickness of the metal layer 13 is 10 nm to 100 nm, preferably 15 nm to 35 nm, in particular when using aluminum.
- the metal layer 13 is partially removed by known methods, for example by the partial application of an etching resist after vapor deposition and subsequent etching, including removal of the
- Exposure mask serve to one applied to the metal layer 13 To structure photoresist. During the subsequent etching, the metal layer 13 therefore remains in the register in the first region 2 in the register to that in FIG
- Replication layer predetermined first optical information 131.
- the substrate is not completely vapor-deposited, the metal layer 13 is rather partially generated, in particular in the second region 3 of the multilayer body 1.
- various methods are known, such as shielding by means of a follower mask or pressure of an oil, which prevents the deposition of the metal layer in the vapor deposition process.
- the structuring of the metal layer 13 is thus preferably carried out separately for the first region 2 and the second region 3, wherein in the second region, preferably only a coarse structuring is carried out.
- structuring can also take place in a joint step.
- a transparent protective lacquer 14 is applied to the metal layer 13 in the first region 2. This protects the already finished structured in the following etching processes
- the layer thickness of the protective lacquer layer 14 is 0.2 ⁇ to 10 ⁇ , preferably 0.5 ⁇ to 1, 5 ⁇ .
- a partial lacquer layer 15 is printed so that it extends beyond the metal layer 13 in this area, but also leaves uncovered portions of the metal layer 13.
- the lacquer layer 15 forms a second optical information 151, in the example shown Guilloche pattern of fine lines.
- the pressure of the lacquer layer 15 can also overlap regions of the region 2 (not shown here).
- the lacquer layer 15 acts as an etching resist in the example shown in the figures and preferably comprises a lacquer, in particular
- Liquid crystals and / or metallic or non-metallic nanoparticles comprises.
- Suitable paints are formulated, for example, based on PVC, polyester or acrylates.
- the partial varnish layer 15 not only fulfills a protective function in structuring the metal layer 13, but can itself develop a decorative effect. It is also possible that several different paints, for example of different colors, are used to create further visual effects.
- a lacquer is used whose dyes or pigments are not recognizable in the visual spectrum, but which by UV irradiation for fluorescence and / or luminescence are excitable.
- a suitable lacquer is, for example, composed of acrylate with nitrocellulose as film former and admixed UV-active pigment.
- Such pigments may be, for example lumilux ® pigments from Honeywell.
- Such paints are
- Luminescence print ready For example, offered by the company Luminescence print ready.
- the further optical information 161 can therefore only be recognized by a UV light source and serves as an additional security feature. Furthermore, the emission of fluorescence may be different depending on the wavelength of the UV light source. For example, it may be red when excited at 365 nm and green when excited at a wavelength of 254 nm, thus serving as another security feature.
- the further optical information 161 may represent a machine-readable pattern such as a barcode.
- FIG. 5 shows, a further partial lacquer layer 17 can now be applied. For this purpose, a paint is used again, the colorant can be seen with the human eye.
- the further partial lacquer layer 17 forms a further optical information 171, here a pattern of stars, which partially overlays the optical information 131, 151 and 161 and forms a background for them.
- the lacquer layers 15, 16, 17 are preferably applied by intaglio printing, flexographic printing, screen printing, pad printing, offset printing, letterpress printing, inkjet printing and / or laser printing.
- the layer thickness of the paint layers 15, 16, 16 is 0.3 ⁇ to 3 ⁇ , preferably 0.5 ⁇ to 1, 5 ⁇ .
- UV irradiation can take place, in particular by UV irradiation at wavelengths of 200 nm to 415 nm. Before the individual printing steps can still use primers to improve the
- Layer adhesion can be applied.
- an adhesive layer 18 is applied to the print layers, with which the finished multi-layer body 1 can be attached, for example on a security document.
- Suitable adhesives include, for example, PVC, polyesters, acrylates, cellulose esters, natural resins,
- the layer thickness of the adhesive layer is 1 ⁇ to 25 ⁇ , preferably 1 ⁇ to 15 ⁇ .
- Multi-layer body 1 cooperate.
- the background of the decor is from formed the star-shaped patterns of the lacquer layer 17.
- the optical information 161 which is only visible under UV irradiation and is formed by the lacquer layer 16, lies above the latter.
- the foreground of the decoration is formed by the guilloche lines of the first optical information 131 and the second optical information.
- the first optical information 131 still comprises a circulating contrast-reversing microtext based on asymmetrical structures.
- This contrast reversal can be done, for example, with blaze or so-called
- Sawtooth structures are implemented.
- one and the same bladder structure is used for the contour and the filling of the microtext, wherein these are mounted rotated by 180 ° relative to one another.
- Typical parameter values for the blister structures to be used are line numbers in the range of 500 lines / mm to 1500 lines / mm and pattern depths in the range of 200 nm to 500 nm.
- Contrast reversal can be realized with such colored or coarser achromatic blazer structures.
- further security features are arranged, which are formed by the metal layer 13 in cooperation with the replication layer. This may be, for example, micro or
- Nanostructures DACs (diffractive area code), diffractive fine line effects (eg Transformations, transformations, pumping effects, etc.) based on colored or achromatic microstructures, binary or continuous Fresnel freeform surfaces, image flip effects, or others that are either visible to the naked eye, or with simple additional aids (eg magnifying glass) detectable, or with special tools (eg microscope) recognizable, or purely machine-readable security structures act.
- diffractive fine line effects e.g., diffractive fine line effects
- Transformations, transformations, pumping effects, etc. based on colored or achromatic microstructures, binary or continuous Fresnel freeform surfaces, image flip effects, or others that are either visible to the naked eye, or with simple additional aids (eg magnifying glass) recognizable or with special tools (eg microscope) recognizable, or purely machine-readable security structures, micro or nanotext information, dynamic color effects or the like. Be provided.
- micro- or nanotext information with quasi-continuous size variation can be provided, in the range from 3 ⁇ m to 2 mm, preferably in the range from 10 ⁇ m to 500 ⁇ m, more preferably in the range from 20 ⁇ m to 150 ⁇ m.
- the multi-layer body 1 can now access a security document 4,
- an identification document can be applied, as shown in FIG. 7. This can be done, for example, by hot stamping or by
- the carrier can be removed after application or remain on the substrate.
- the security element 4 by further applied layers or layers are protected, for example by a protective film laminated over it. Furthermore, that can
- Security feature 4 transferred in a first step to another transfer position and transferred in a next step together with the transfer position on the surface to be secured.
- the multilayer body 1 is applied so as to overlap an identification photograph 41 so that it can not be removed without destroying the security document 4 and / or the multilayer body 1.
- the multi-layer body 1 can be partially overprinted with further security features 42, 43 in a further step itself. This can be done for example in inkjet printing, offset printing, letterpress printing or steel engraving.
- the security features 42, 43 may also contain individualized information and ensure that the multi-layer body 1 can not be removed from the security document 4.
- the necessary personalization information for the security document 4 can be printed.
- One possible method is to print the
- Personalization information via inkjet printing If the printing is also to take place above the security feature, in particular water-based inks require a special receptive layer or a color receiving layer, so that the print can dry in a sufficiently short time.
- Such layers consist for example of a swellable layer, a microporous layer or a combination of both.
- Swellable layers typically consist of polyvinyl alcohol, polyvinylpyrrolidone, gelatin Derivatives, or cellulose esters or mixtures thereof.
- Layer thicknesses are typically in the range 3 ⁇ to 10 ⁇ .
- Layers consist for example of polyvinyl alcohols with large amounts of fillers. Such layers have typical layer thicknesses of 5 ⁇ to 25 ⁇ , preferably from 5 ⁇ to 15 ⁇ on.
- such layers are a part of the multilayer body 1, so that they form the topmost layer after application to the security document 4.
- such layers can also be applied after application to the security document 4, for example by means of
- Gravure printing, pad printing, screen printing or flexographic printing can be applied as a dry transfer layer by means of a separate transfer process, for example by means of hot stamping or UV transfer (cold stamping).
- Another area 45 is available for the attachment of machine-readable data.
- biometric data of the owner of the security document 4 can be stored here.
- machine-detectable information may be printed, for example in the form of a 1D or 2D barcode.
- the document clearly identifying information such as, for example, the document number and / or parts of the personal data, is encrypted by means of cryptographic methods and printed on the document as machine-ascertainable information.
- the consistency of the data can then be checked and thus the authenticity of the entries can be verified.
- the document number is also introduced in the region of the multilayer body 1, ie overlapping with the multilayer body 1.
- Particularly advantageous is an introduction by means of a technique that leads to an irreversible change of the multilayer body 1, for example by means of laser.
- partial regions of the metal layers in the first and / or second region, in particular after application of the multilayer body 1 to the security document 4, can be processed by means of laser radiation, thus removing the metal. This is particularly suitable for introducing an individual identification, such as a number. If this processing takes place in the second subarea, then it is freed from the metal
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Credit Cards Or The Like (AREA)
- Laminated Bodies (AREA)
- Holo Graphy (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15724532T PL3140127T3 (pl) | 2014-05-07 | 2015-05-07 | Element wielowarstwowy i sposób jego wytwarzania |
RS20200213A RS59973B1 (sr) | 2014-05-07 | 2015-05-07 | Višeslojno telo i metoda za njegovu proizvodnju |
SI201531203T SI3140127T1 (sl) | 2014-05-07 | 2015-05-07 | Večslojno telo in postopek njegove izdelave |
HRP20200694TT HRP20200694T1 (hr) | 2014-05-07 | 2020-04-29 | Višeslojno tijelo i postupak za njegovu proizvodnju |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014106340.6A DE102014106340B4 (de) | 2014-05-07 | 2014-05-07 | Mehrschichtkörper und Verfahren zu dessen Herstellung sowie Sicherheitsdokument |
PCT/EP2015/060050 WO2015169895A1 (de) | 2014-05-07 | 2015-05-07 | Mehrschichtkörper und verfahren zu dessen herstellung |
Publications (2)
Publication Number | Publication Date |
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EP3140127A1 true EP3140127A1 (de) | 2017-03-15 |
EP3140127B1 EP3140127B1 (de) | 2020-02-12 |
Family
ID=53267307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15724532.5A Active EP3140127B1 (de) | 2014-05-07 | 2015-05-07 | Mehrschichtkörper und verfahren zu dessen herstellung |
Country Status (15)
Country | Link |
---|---|
US (1) | US9975370B2 (de) |
EP (1) | EP3140127B1 (de) |
JP (1) | JP6649275B2 (de) |
CN (1) | CN106457873B (de) |
AR (1) | AR100330A1 (de) |
CA (1) | CA2946085C (de) |
DE (1) | DE102014106340B4 (de) |
ES (1) | ES2774974T3 (de) |
HR (1) | HRP20200694T1 (de) |
HU (1) | HUE049087T2 (de) |
PL (1) | PL3140127T3 (de) |
PT (1) | PT3140127T (de) |
RS (1) | RS59973B1 (de) |
SI (1) | SI3140127T1 (de) |
WO (1) | WO2015169895A1 (de) |
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DE102016109633B4 (de) * | 2016-05-25 | 2022-12-29 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zur Herstellung einer Volumenhologrammfolie mit als Übertragungsabschnitte ausgebildeten Sicherheitselementen |
DE102017001348A1 (de) | 2017-02-10 | 2018-08-16 | Giesecke+Devrient Mobile Security Gmbh | Erzeugung eines optischen Sicherheitselements |
GB2562028B (en) * | 2017-03-10 | 2022-02-23 | Reproflex3 Ltd | Improved De-Metallisation Method for Metallised Substrates, and De-Metallised Substrates Produced Thereby |
DE102017106721A1 (de) * | 2017-03-29 | 2018-10-04 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zum Herstellen einer Mehrschichtfolie und eine Mehrschichtfolie sowie ein Sicherheitselement und ein Sicherheitsdokument |
DE102017005779A1 (de) | 2017-06-19 | 2018-12-20 | Giesecke+Devrient Mobile Security Gmbh | Mikrooptisches Element mit Farbwechsel |
DE102017010744A1 (de) * | 2017-11-21 | 2019-05-23 | Giesecke+Devrient Currency Technology Gmbh | Verfahren zum Herstellen eines Sicherheitselementes mit einer durch Laserstrahlung erzeugten Öffnung in einer metallischen Schicht |
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DE102018221975A1 (de) * | 2018-12-17 | 2020-06-18 | Bundesdruckerei Gmbh | Hologrammmaster für eine Herstellung von individualisierten Hologrammen mit kinetischen Beugungsstrukturen |
DE102019109059A1 (de) * | 2019-04-05 | 2020-10-08 | Bundesdruckerei Gmbh | Ausweis-, wert- oder sicherheitsdokument sowie verfahren und vorrichtung zur herstellung eines solchen |
FR3103736B1 (fr) | 2019-11-29 | 2021-12-10 | Idemia France | Image personnalisée formée à partir d’un hologramme métallique |
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KR102574400B1 (ko) * | 2021-06-21 | 2023-09-06 | 주식회사 씨에스와이 | 치과용 임플란트 픽스쳐의 식각 방법 및 장치 |
EP4429897A1 (de) | 2022-02-07 | 2024-09-18 | Sun Chemical B.V. | Wasserbasierter entmetallisierungsresist |
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-
2014
- 2014-05-07 DE DE102014106340.6A patent/DE102014106340B4/de active Active
-
2015
- 2015-05-06 AR ARP150101383A patent/AR100330A1/es unknown
- 2015-05-07 RS RS20200213A patent/RS59973B1/sr unknown
- 2015-05-07 SI SI201531203T patent/SI3140127T1/sl unknown
- 2015-05-07 WO PCT/EP2015/060050 patent/WO2015169895A1/de active Application Filing
- 2015-05-07 CN CN201580023805.0A patent/CN106457873B/zh active Active
- 2015-05-07 US US15/308,865 patent/US9975370B2/en active Active
- 2015-05-07 CA CA2946085A patent/CA2946085C/en active Active
- 2015-05-07 HU HUE15724532A patent/HUE049087T2/hu unknown
- 2015-05-07 PL PL15724532T patent/PL3140127T3/pl unknown
- 2015-05-07 ES ES15724532T patent/ES2774974T3/es active Active
- 2015-05-07 EP EP15724532.5A patent/EP3140127B1/de active Active
- 2015-05-07 PT PT157245325T patent/PT3140127T/pt unknown
- 2015-05-07 JP JP2016566887A patent/JP6649275B2/ja active Active
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2020
- 2020-04-29 HR HRP20200694TT patent/HRP20200694T1/hr unknown
Also Published As
Publication number | Publication date |
---|---|
JP2017517415A (ja) | 2017-06-29 |
DE102014106340B4 (de) | 2021-05-12 |
CA2946085C (en) | 2022-08-30 |
ES2774974T3 (es) | 2020-07-23 |
HRP20200694T1 (hr) | 2020-07-24 |
SI3140127T1 (sl) | 2020-07-31 |
PL3140127T3 (pl) | 2020-08-24 |
CN106457873B (zh) | 2018-11-09 |
DE102014106340A1 (de) | 2015-11-12 |
AR100330A1 (es) | 2016-09-28 |
PT3140127T (pt) | 2020-05-11 |
CN106457873A (zh) | 2017-02-22 |
RS59973B1 (sr) | 2020-03-31 |
US20170066279A1 (en) | 2017-03-09 |
HUE049087T2 (hu) | 2020-09-28 |
EP3140127B1 (de) | 2020-02-12 |
CA2946085A1 (en) | 2015-11-12 |
US9975370B2 (en) | 2018-05-22 |
JP6649275B2 (ja) | 2020-02-19 |
WO2015169895A1 (de) | 2015-11-12 |
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