EP1954507A2 - Lasertransfer von sicherheitsmerkmalen - Google Patents
Lasertransfer von sicherheitsmerkmalenInfo
- Publication number
- EP1954507A2 EP1954507A2 EP06818824A EP06818824A EP1954507A2 EP 1954507 A2 EP1954507 A2 EP 1954507A2 EP 06818824 A EP06818824 A EP 06818824A EP 06818824 A EP06818824 A EP 06818824A EP 1954507 A2 EP1954507 A2 EP 1954507A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- pigment
- layer
- dye
- carrier film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
-
- 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
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- 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
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/267—Marking of plastic artifacts, e.g. with 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
-
- 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
- B42D25/40—Manufacture
-
- 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
-
- 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
- B42D25/415—Marking using chemicals
Definitions
- the present invention is a method for increasing the protection against counterfeiting of high-quality products, value and security documents by non-duplicable security features that are transmitted with the help of laser technology in the respective material.
- the invention likewise relates to a suitable carrier film system for carrying out the method.
- Non-copying is understood to mean that when a counterfeit of the product, value and security document by copying, the specific property of the security feature on the copies are not found, such. Fluorescence, phosphorescence, electroluminescence, specific conductivity, color flop, UV and IR absorption, DNA sequences or properties based on magnetic, thermochromic, holographic or photochromic effects.
- the laser technology is also used for laser ablation and / or blackening of printing inks or the document itself, and for the production of tactile markings, as known from the published patent applications DE 28 36 529, WO 98/03348 and WO 2004/009371 ,
- Computer-controlled laser technology offers the possibility of individual and personalized marking of each individual product or document compared to printing processes with a predefined print image, such as screen, stencil, intaglio, flexo, offset, gravure, pad printing.
- a predefined print image such as screen, stencil, intaglio, flexo, offset, gravure, pad printing.
- the freely movable laser heads make them virtually independent of the product geometry.
- the object of the present invention is to provide a method for the flexible and individual identification of high-quality products, such as e.g. Value and security documents to develop with counterfeit and copy-proof features using laser technology.
- Laser radiation in the product or in the value and security document - hereinafter referred to only as a document - can transfer.
- the introduced laser energy is absorbed by a laser-sensitive material and converted into heat energy.
- the effect of heat on the layer system leads to the detachment of the security features and their transfer into or on the product or document to be marked.
- the present invention thus provides a method for the flexible and individual identification of products, value and security documents with counterfeit and copy-proof features, characterized in that non-duplicable security features are incorporated into a layer system and by laser radiation in or on the product, value or security document.
- An advantage of the product and document counterfeit protection over known techniques, such as printing methods, is that the laser radiation used can also cause heating in the product or document itself and thus the security features not only on the surface, but also in the product and document can be transmitted to a certain depth into it.
- lasers in the wavelength range of 157 nm to 10.6 microns preferably in the range of 355 nm to 10.6 microns into consideration.
- diode lasers 808-980 nm
- Nd YAG and YVO 4 lasers (355, 534 and 1064 nm)
- CO 2 lasers (10.6 ⁇ m).
- the suitable power spectrum of the laser comprises 0.5 to 300 watts, (average laser output power) particularly preferably in the range 14 to 30 W, the pulse frequency is in the range of 1 to 200 kHz.
- the parameters of the laser used depend on the respective one
- the layer system consists in a preferred embodiment, as shown in Fig. 1, of at least four überpuliiegenden layers, wherein the first layer is a laser light-transmissive carrier film (1) on which a laser light-sensitive energy absorber layer (2) is applied, Subsequently, the release layer (3), optionally a sealing layer (4), the labeling medium (5) and optionally as a last layer, an adhesive layer (6), wherein the labeling medium contains copy-proof security features and the laser energy is absorbed by the laser-sensitive material and converted into heat energy, and to replace the security features and their transfer into or on the value or security document to be marked.
- the layer system consists of at least three superimposed layers, wherein the first layer is a laser light-permeable carrier film (7) which contains one or more laser light-sensitive energy absorbers, then the release layer (3), Optionally, a sealing layer (4), the labeling medium (5) and optionally as a last layer, an adhesive layer (6), wherein the labeling medium contains copy-secure security features and the laser energy is absorbed by the laser-sensitive material and converted into heat energy and for detachment of security features and their transfer into or on the value or security document to be marked.
- the invention also relates to carrier film systems suitable for the process. - A -
- the main components of the layer system according to the invention are a suitable carrier film system, a laser-sensitive substance and the desired copy-proof security feature in a labeling medium.
- materials for the carrier film systems (1) in Fig.1 or (7) in Fig.2 are preferably plastic films into consideration, which are not destroyed by the laser light.
- Suitable plastics include polyesters such as polyethylene terephthalate, polyolefins such as polyethylene and polypropylene, polyamides, polyimides, polyacetals, polycarbonates, polyester esters, polyether esters, polymethyl methacrylates, polyvinyl acetal, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene, acrylonitrile-styrene-acrylic esters, polyether ketones, polyethersulfones, their Copolymers and / or mixtures.
- polyesters such as polyethylene terephthalate, polyolefins such as polyethylene and polypropylene, polyamides, polyimides, polyacetals, polycarbonates, polyester esters, polyether esters, polymethyl methacrylates, polyvinyl acetal, polyvinyl chloride, polystyrene, acrylonitrile-butadiene-styrene, acrylonitrile
- plastic films of polyethylene terephthalate, polyethylene and polypropylene are suitable.
- the laser-sensitive substance is applied to the carrier film system (1) as layer (2) in FIG. 1 or is already contained in the carrier film system (7) in FIG. In the latter case, the carrier film (7) is then no longer transparent or translucent to the laser light, but must continue to be stable during the laser irradiation.
- the incorporation of the laser-sensitive substance can be carried out by:
- the support film systems (1) and (7) may additionally be bonded to or embedded in non-colored films to prevent possible penetration of the laser-sensitive material into the labeling medium.
- the carrier film system can with known in the art methods such. As cold and hot bonding, extruding, calendering and laminating are joined together.
- the laser-sensitive substances suitable for the invention are preferably materials selected from the group consisting of carbon, carbon black, metal oxides, such as, for example, Sn (Sb) O 2 , TiO 2 , carbon black, graphite, anthracene, IR-absorbing colorants, such as perylenes / rylenes, pentaerythritol, copper hydroxide phosphates, molybdenum disulphides,
- Antimony (III) oxide and bismuth oxychloride platelet-shaped, in particular transparent or semitransparent substrates of z.
- phyllosilicates such as synthetic or natural mica, talc, kaolin, glass slides, SiO 2 platelets or synthetic carrier-free platelets.
- platelet-shaped metal oxides such as.
- metal powders which may be uncoated or else covered with one or more metal oxide layers; preferred are z.
- B. Al, Fe or steel plates are used uncoated, they are preferably coated with a protective polymer layer.
- platelet-shaped substrates and spherical pigments can be used, for. B. from Al, Cu, Cr, Fe, Au, Ag and / or Fe.
- Particularly preferred substrates are mica flakes coated with one or more metal oxides.
- Both colorless high-index metal oxides in particular titanium dioxide, antimony (III) oxide, zinc oxide, tin oxide and / or zirconium dioxide are used as metal oxides, as well as colored metal oxides, such.
- Pigments based on transparent or semi-transparent platelet-shaped substrates are e.g. As described in German patents and patent applications 14 67 468, 19 59 998, 20 09 566, 22 14 454, 22 15 191, 22 44 298, 23 13 331, 25 22 572, 31 37 808, 31 37 809, 31st 51 343, 31 51 354, 31 51 355, 32 11 602, 32 35 017, 38 42 330, 44 41 223.
- Coated SiO 2 platelets are z. B. known from WO 93/08237 (wet-chemical coating) and DE-OS 196 14 637 (CVD method).
- Multilayered pigments based on phyllosilicates are known, for example, from German published patent applications DE 196 18 569, DE 196 38 708, DE 197 07 806 and DE 198 03 550. Particularly suitable are multilayer pigments which have the following structure:
- Particularly preferred laser-sensitive substances are carbon blacks such as flame and gas blacks.
- the laser-sensitive substance may also be a mixture of two or more of the named components.
- the laser-sensitive substance is applied as a layer (2) to the support (1) (Fig. 1), e.g. imprinted, it is present at 0.5 to 40% by weight, preferably 5 to 38% by weight, in particular 7 to 35% by weight, based on the total weight of the liquid pressure medium.
- the laser-sensitive substance is incorporated directly into the carrier (7) in Fig. 2, e.g. extruded and calendered, it is present with effective 0.5 to 10 wt.%, Preferably 1 to 8 wt.%, In particular 1, 5 to 6 wt.%, In the carrier (7).
- the labeling medium (5) with the desired security feature is applied as a layer on the carrier film system and consists essentially of binder system (binder is usually already incorporated in suitable solvents and can be obtained commercially), security feature, fillers and optionally colorants and additives.
- the labeling medium preferably contains 20-90% by weight of binder system, in particular 40-85% by weight, and very particularly preferably 60-80% by weight, based on the total mass of the marking medium.
- binders for the labeling medium are in particular cellulose, cellulose derivatives, such as.
- colorants depends on whether you want to apply a clearly visible mark / label on the product or document in addition to the non-collapsible security feature.
- non-duplicable security features which may be contained in the labeling medium (5), are particularly considered:
- IR Infrared wavelength range (300 ⁇ m to 770 nm)
- NIR near infrared
- UV ultraviolet wavelength range (390 nm to 5 nm)
- RF Radio frequency (30 to 500 kHz (LF), 10 to 15 MHz (HF), 850 to 950 MHz (UHF)
- the security feature is usually contained in the labeling medium in amounts of 0.001-40 wt.%.
- concentrations are in the range from 20 to 30% by weight, while concentrations in the ppm range are already sufficient for the taggants.
- the security pigments / dyes are incorporated in pure form or in the form of nano- or microcrystalline particle systems.
- the security pigments / dyes in the particulate matrix e.g., plastic matrix
- homogeneously colored plastics can serve as a coating material for inorganic powders or platelets (synthetic or natural mica, talc, kaolin, glass flakes, powder, SiO 2 flakes, powder, nano or microparticles, metal oxides) , which are also applied to the carrier sheet system (1) or (7) in printing or coating processes.
- inorganic powders or platelets synthetic or natural mica, talc, kaolin, glass flakes, powder, SiO 2 flakes, powder, nano or microparticles, metal oxides
- Suitable plastics for the particle systems or coatings with security features are polystyrene, polyacrylonitrile,
- a release layer (3) and a sealing layer (4) can be inserted between the laser-sensitive layer (2) or the carrier system (7) and the labeling medium (5).
- the release layer (3) facilitates clean detachment and transfer of the security feature during laser transfer. It consists essentially (> 95 wt.%) Of waxes. They are natural waxes, such as. B.
- the sealing layer (4) provides additional protection of the transferred security feature in the labeling medium (5) against the respective external influences. However, the sealing layer (4) is not absolutely necessary.
- Polymers which preferably have glass transition temperatures> 90 0 C, in particular between 100 - 120 0 C.
- This polymer layer can be applied as a separate layer or already enclose and seal the security features in the marking medium (5).
- the seal preferably consists of the polymers of styrene, vinyl chloride, vinyl fluoride, methyl methacrylate or hydroxy-functional acrylates.
- an adhesive layer (6) to the labeling medium (5) which is either activated under laser action or already has adhesive properties.
- the adhesive layer (6) if present, consists essentially of (> 95
- thermoplastics and fillers % By weight
- thermoplastics include polyvinyl chloride, modified rosin, polyethylene vinyl acetate, ethylene vinyl acetate polymers, chlorinated polypropylene and polyethylene, polyesters and polyurethanes.
- the fillers used are preferably chalk, calcite, calcium carbonate, barium sulfate and precipitated silica (SiO 2 ).
- the preferred ratio of filler to thermoplastic is 1: 0.5 to 1: 1.
- all adhesives are suitable for PUR, acrylate or rubber-based film systems, in particular two-component polyurethane adhesives, crosslinked Acrylate hotmelt adhesive with K values> 20 (Acronal ® adhesive types, Messrs. BASF) as well as resins rosin and hydrocarbon resins.
- the adhesive layer (6) is applied to the inscription medium (5) in a layer thickness of 0.3 to 10 ⁇ m, more preferably in a layer thickness of 0.5 to 2 ⁇ m.
- the layer system has a total layer thickness of 30-350 ⁇ m, preferably 40-300 ⁇ m, in particular 50-250 ⁇ m.
- Products in particular branded goods and technical goods made of plastic, plastic films, leather, wood and textiles • Product packaging and labels made of paper, cardboard, cardboard,
- the security feature can lie as a hidden feature in a visible labeling field and be made visible with the appropriate technical aids or it is located at an unknown, not visibly marked position of the product or document.
- PE polyethylene
- PP polypropylene
- PET polyethylene terephthalate
- carbon black contents of 3 - 12 wt.% are processed in the usual manufacturing processes such as extrusion and calendering into films, which are then biaxially stretched.
- the effective carbon black content of a suitable PE film is between 2.5 and 5% by weight.
- the homogeneously colored black film may additionally be bonded to a non-colored polyethylene terephthalate film.
- black colored PE, PET or PP to a 12 .mu.m thick PET film at processing temperatures of 120 - 160 0 C is extruded and then calendered.
- the coating weights of the black-colored PE, PET or PP are between 20 and 50 g / m 2 .
- the thickness of the finished composite is between 20 and 80 ⁇ m.
- the composite of the carrier films by a hot lamination of the black colored PE, PET or PP film with the PET film at about 140 0 C or cold lamination with commercially available adhesives (acrylate, 2-component polyurethanes or hot melts) are prepared ,
- Example 2 Production of a Gradually Black-Colored Carrier Film (7) (with Gradients in the Filling Level)
- Another variant is to produce the films individually with the different degrees of filling and to laminate or laminate as described in Example 1 to form a composite.
- the thickness of the finished composite is 20-80 microns.
- the carrier film system is coated with labeling medium and with release, sealing and adhesive layers.
- PVB Wood-Chemie polyvinyl butyral, Pioloform ®, Fa.
- Polyvinyl butyral is dissolved in the initially introduced solvent ethyl acetate and stirred well. Subsequently, the laser-sensitive component Sn (Sb) O 2 is stirred in and a homogeneous color is produced.
- the ink is gravure printed with a coating weight of 0.5-10 g / m 2 on the carrier film (1) or (7).
- PVB polyvinyl butyral, Pioloform ®, from Wacker-Chemie.
- carbon black d 50 value of ⁇ 17 nm
- the laser-sensitive material Iriodin ® Lazerflair 825 is gently introduced into the printing medium Masterblend 50 and printed in gravure printing. With the solvent mixture of ethyl acetate / ethanol, the desired viscosity can be adjusted. The application weight is 0.5 - 1 g / cm 2 .
- ester wax is dissolved in toluene and stirred well.
- Example 8 Preparation of a sealing layer (4)
- the PE wax and polystyrene are dissolved in xylene and with a
- PE wax and PMMA are dissolved in the solvent mixture and homogenized with a dissolver.
- Example 11 Preparation of a coating medium (5) with Secutag ® taggants the company Simons pressure +maschine GmbH, Nottuln
- Secutag ® color-coded particles with different particle size distributions There are different types used by Secutag ® color-coded particles with different particle size distributions.
- Particle size range is between 5 - 45 microns.
- the respective color coding type together with the pearlescent effect pigment, is stirred into the binder system while avoiding high shear forces. Subsequently, the adjustment is made to the printing viscosity (DIN 4 cup (DIN 53211) 14-25 s).
- the printing of the ink is carried out by gravure printing using a suitable gravure printing grid (eg 60 lines / cm, electronically engraved) on a suitable printing machine (eg Moser Rototest).
- a suitable gravure printing grid eg 60 lines / cm, electronically engraved
- a suitable printing machine eg Moser Rototest.
- the layer thickness is 4 - 8 ⁇ m.
- Example 12 Preparation of a coating medium (5) with
- Particle size range is between 2 - 10 microns.
- the respective up-converter is stirred together with the pearlescent pigment into the binder system while avoiding high shear forces. Subsequently, the adjustment is made to the printing viscosity (DIN 4 cup (DIN 53211) 14-25 s).
- the printing of the ink is carried out by gravure printing using a suitable gravure printing grid (eg 60 lines / cm, electronically engraved) on a suitable printing machine (eg Moser Rototest).
- a suitable gravure printing grid eg 60 lines / cm, electronically engraved
- a suitable printing machine eg Moser Rototest.
- the layer thickness is 4 - 8 ⁇ m.
- Example 13 Preparation of a coating medium (5) with UV-fluorescent dyes
- the respective fluorescent dye is stirred together with the pearlescent pigment in the binder system while avoiding high shear forces. Subsequently, the adjustment is made to the printing viscosity (DIN 4 cup (DIN 53211) 14-25 s).
- the printing of the ink is carried out by gravure printing using a suitable gravure printing grid (eg 60 lines / cm, electronically engraved) on a suitable printing machine (eg Moser Rototest).
- a suitable gravure printing grid eg 60 lines / cm, electronically engraved
- a suitable printing machine eg Moser Rototest.
- the layer thickness is 4 - 8 ⁇ m.
- the respective pigment is stirred into the binder system while avoiding high shear forces. Subsequently, the adjustment is made to the printing viscosity (DIN 4 cup (DIN 53211) 14-25 s).
- the printing of the ink is carried out by gravure printing using a suitable gravure printing grid (eg 60 lines / cm, electronically engraved) a suitable printing press (eg Moser-Rototest).
- a suitable gravure printing grid eg 60 lines / cm, electronically engraved
- a suitable printing press eg Moser-Rototest.
- the layer thickness is 4 - 8 ⁇ m.
- the printing of the ink is carried out by gravure printing using a suitable gravure printing grid (eg 60 lines / cm, electronically engraved) on a suitable printing machine (eg Moser Rototest).
- a suitable gravure printing grid eg 60 lines / cm, electronically engraved
- a suitable printing machine eg Moser Rototest.
- the layer thickness is 4 - 8 ⁇ m.
- Example 16 Preparation of a coating medium (5) with optically variable pigments
- the pigment is stirred into the binder system while avoiding high shear forces. Subsequently, the adjustment is made to the printing viscosity (DIN 4 cup (DIN 53211) 14-25 s).
- the printing of the ink is carried out by gravure printing using a suitable gravure printing grid (eg 60 lines / cm, electronically engraved) a suitable printing press (eg Moser-Rototest).
- a suitable gravure printing grid eg 60 lines / cm, electronically engraved
- a suitable printing press eg Moser-Rototest.
- the layer thickness is 4 - 8 ⁇ m.
- Example 17 Preparation of a Coating Medium (5) with UV-Fluorescent Particles (Taggants)
- Senolith ® dispersion coating (Fa Weilburger Graphics wt.
- the aqueous pigment preparation is introduced into the dispersion paint.
- the spherical melamine particles which fluoresce in UV light are prepared in a polycondensation reaction in aqueous rhodamine B solution, washed, filtered and mixed into the coating medium by stirring.
- the melamine particles become visible under commercial UV lamps.
- melamine particles can be obtained if support substrates such as mica platelets or the like are used. coated with fluorescent melamine resins.
- the softening point or the glass transition temperature are determined according to DIN EN 6032 or DIN EN ISO 306.
- Examples 3-5 On one of the support film composites described in Example 1 or 2 (Examples 3-5) with intrinsically contained laser-sensitive pigment (7) or extra applied laser-sensitive layer (2) is optionally a release layer (3) (Examples 6-7) in a layer thickness of 0th , 01 - 2 microns applied.
- the coating can then be applied with a sealing layer (4) (Examples 8-10) in a layer thickness of o, 01-2 ⁇ m.
- the inscription medium (5) (Examples 11-17) can then be in a layer thickness of 2 - 15 microns onto the release layer (3) and sealing layer (4) is printed and at 70 - 120 0 C dried.
- the adhesive layer (6) (Example 18) is applied, which, depending on the application, may be between 0.3 and 10 .mu.m, but is preferably used in a range of 0.5 to 2 .mu.m.
- the preferred printing method is gravure printing.
- Example 20 Laser marking and labeling with security features
- the labeling films must be brought into close contact with the products and documents to be labeled. This can e.g. by mechanically feeding the labeling films in a unwinding device to the product and document or by applying a vacuum, which sucks the labeling film to the product or document. Adhesive adhesive layers also allow manual attachment.
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- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
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- Treatment Of Fiber Materials (AREA)
- Laser Surgery Devices (AREA)
- Credit Cards Or The Like (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005057474A DE102005057474A1 (de) | 2005-11-30 | 2005-11-30 | Lasertransfer von Sicherheitsmerkmalen |
PCT/EP2006/011311 WO2007062785A2 (de) | 2005-11-30 | 2006-11-24 | Lasertransfer von sicherheitsmerkmalen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1954507A2 true EP1954507A2 (de) | 2008-08-13 |
EP1954507B1 EP1954507B1 (de) | 2010-01-20 |
Family
ID=37983325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06818824A Not-in-force EP1954507B1 (de) | 2005-11-30 | 2006-11-24 | Lasertransfer von sicherheitsmerkmalen |
Country Status (11)
Country | Link |
---|---|
US (1) | US20080290649A1 (de) |
EP (1) | EP1954507B1 (de) |
JP (1) | JP2009517250A (de) |
KR (1) | KR20080080592A (de) |
CN (1) | CN100567015C (de) |
AT (1) | ATE455655T1 (de) |
AU (1) | AU2006319474A1 (de) |
BR (1) | BRPI0618849A2 (de) |
DE (2) | DE102005057474A1 (de) |
TW (1) | TW200800651A (de) |
WO (1) | WO2007062785A2 (de) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10741034B2 (en) | 2006-05-19 | 2020-08-11 | Apdn (B.V.I.) Inc. | Security system and method of marking an inventory item and/or person in the vicinity |
DE102006062269A1 (de) * | 2006-12-22 | 2008-06-26 | Eckart Gmbh & Co. Kg | Verwendung von sphärischen Metallpartikeln als Lasermarkierungs- oder Laserschweißbarkeitsmittel sowie lasermarkierbarer und/oder laserschweißbarer Kunststoff |
DE102007030017A1 (de) * | 2007-06-29 | 2009-01-08 | Matthias Lydike | Kennzeichnen von Textilien |
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2005
- 2005-11-30 DE DE102005057474A patent/DE102005057474A1/de not_active Withdrawn
-
2006
- 2006-11-24 EP EP06818824A patent/EP1954507B1/de not_active Not-in-force
- 2006-11-24 BR BRPI0618849-4A patent/BRPI0618849A2/pt not_active Application Discontinuation
- 2006-11-24 CN CNB2006800451300A patent/CN100567015C/zh not_active Expired - Fee Related
- 2006-11-24 AU AU2006319474A patent/AU2006319474A1/en not_active Abandoned
- 2006-11-24 AT AT06818824T patent/ATE455655T1/de active
- 2006-11-24 DE DE502006006003T patent/DE502006006003D1/de active Active
- 2006-11-24 KR KR1020087015710A patent/KR20080080592A/ko not_active Application Discontinuation
- 2006-11-24 JP JP2008542644A patent/JP2009517250A/ja active Pending
- 2006-11-24 US US12/095,401 patent/US20080290649A1/en not_active Abandoned
- 2006-11-24 WO PCT/EP2006/011311 patent/WO2007062785A2/de active Application Filing
- 2006-11-28 TW TW095144025A patent/TW200800651A/zh unknown
Non-Patent Citations (1)
Title |
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See references of WO2007062785A2 * |
Also Published As
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CN101321633A (zh) | 2008-12-10 |
CN100567015C (zh) | 2009-12-09 |
AU2006319474A1 (en) | 2007-06-07 |
EP1954507B1 (de) | 2010-01-20 |
JP2009517250A (ja) | 2009-04-30 |
BRPI0618849A2 (pt) | 2011-09-13 |
KR20080080592A (ko) | 2008-09-04 |
TW200800651A (en) | 2008-01-01 |
WO2007062785A2 (de) | 2007-06-07 |
DE102005057474A1 (de) | 2007-05-31 |
ATE455655T1 (de) | 2010-02-15 |
DE502006006003D1 (de) | 2010-03-11 |
WO2007062785A3 (de) | 2007-07-26 |
US20080290649A1 (en) | 2008-11-27 |
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