Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
  • B41M3/14—Security printing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/465—Associating two or more layers using chemicals or adhesives
  • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
• • 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
  • B42D25/40—Manufacture
  • B42D25/405—Marking
  • B42D25/415—Marking using chemicals
  • B42D25/42—Marking using chemicals by photographic processes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/455—Associating two or more layers using heat
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C1/00—Photosensitive materials
  • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
  • G03C1/95—Photosensitive materials characterised by the base or auxiliary layers rendered opaque or writable, e.g. with inert particulate additives
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
  • G03C11/00—Auxiliary processes in photography
  • G03C11/08—Varnishing, e.g. application of protective layers on finished photographic prints
• • B42D2033/04—
• • B42D2033/14—
• • B42D2033/30—
• • B42D2033/32—
• • B42D2035/02—
• • B42D2035/06—
• • B42D2035/08—
• • B42D2035/26—
• • 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
  • B42D25/45—Associating two or more layers
  • B42D25/46—Associating two or more layers using pressure
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S283/00—Printed matter
  • Y10S283/904—Credit card
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S428/00—Stock material or miscellaneous articles
  • Y10S428/916—Fraud or tamper detecting
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
  • Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material

Definitions

• the invention relates to a photographic information carrier which is laminated on one or both sides with plastic films.
• Forgery-proof documents are becoming increasingly important. You will e.g. used in the form of credit cards from banks, retail stores, oil companies, airlines or credit companies to facilitate cashless payments. Such documents contain information that relates to the owner as well as the body issuing the document and that is in both interests to be protected against counterfeiting. There has been no shortage of attempts to provide information carriers of the type mentioned above in a forgery-proof manner.
• a printed information carrier consisting of a paper card and a film border, a so-called “composite rivet”, is welded between two transparent films.
• the foil border provides for an edge welding that encompasses the edges of the paper card, which makes it difficult to split the welded card (DE-OS 2 756 691).
• FR-A-1584105 describes a credit card consisting of a rigid plastic film, to which an adhesive layer consisting of acrylate copolymer, gelatin, plasticizer and solvent is applied, whereupon this layer structure is laminated onto a photographic layer with a support.
• a disadvantage of the known lamination processes is that the foils used for this purpose bond only incompletely to the surface of the information carrier during welding and thus offer only limited protection against counterfeiting. Edge welding also does not mean any significant improvement under these circumstances, as it can be easily removed and replaced again.
• the known lamination processes also have the disadvantage that the laminated film can be separated from the paper backing by heating or by chemical means.
• the invention has for its object to provide a tamper-proof document with an information carrier in the form of a photographically and printing technology prepared photographic material in which the entire surface of the information carrier is inextricably linked with a transparent film material and the information attached to the information carrier without destroying the Information carriers are no longer accessible and are therefore reliably protected against subsequent changes.
• the invention relates to a forgery-proof document consisting of an information carrier provided with information on one or both sides with at least one transparent film laminated by means of an adhesive layer and formed from a photographic material, the information carrier at least one gelatin layer carrying a photographic silver or dye image, optionally one has an outer gelatin-containing protective layer attached on the emulsion side and an outer gelatin-containing protective layer and an outer backside gelatin-containing layer and at least the outer layers of the gelatin-containing particles, the size of which is smaller than 0.1 11 m, of a homo- or copolymer of an acrylic acid or and contains methacrylic acid ester. If necessary, these homopolymers or copolymers can also contain small amounts of e.g. contain up to 10 mol% of other comonomers in polymerized form. When selecting these additional components, care must be taken to ensure that the polymer remains essentially water-insoluble.
• the homo- or copolymers of acrylic acid and / or methacrylic acid esters contained in the gelatin layers of the information carrier - hereinafter referred to as polymer - are based on aliphatic C 1 to C 12 esters.
• the polymers are added to the casting solutions used to prepare the gelatin layers in the form of latices, which can be prepared by generally known processes with a solids content of 20 to 60% by weight and a particle size of less than 0.1 11 m. Particles with a size of 0.01 to 0.07 11 m are preferred for the present application.
• the corresponding methyl, ethyl and butyl esters are particularly suitable.
• the ethyl esters and in particular polyethyl acrylate are preferred.
• the gelatin layers, in particular the outer layers, of the information carrier contain matting agents, for example inorganic matting agents, such as silicon dioxide, titanium dioxide, magnesium oxide, aluminum oxide, barium sulfate, calcium carbonate or glass powder; or organic matting agents such as starch, cellulose esters, for example cellulose acetate propionate, cellulose ethers, for example ethyl cellulose; or synthetic products, such as homopolymers or copolymers of, for example Vinyl acetate, vinyl carbonate, esters of acrylic acid and methacrylic acid, for example methyl methacrylate, acrylonitrile or styrene. Polyacrylonitrile is preferred.
• matting agents for example inorganic matting agents, such as silicon dioxide, titanium dioxide, magnesium oxide, aluminum oxide, barium sulfate, calcium carbonate or glass powder
• organic matting agents such as starch, cellulose esters, for example cellulose acetate propionate, cellulose ethers, for example ethyl cellulose
• the particle sizes of the matting agents used according to the invention are 1 to 15 11 m, preferably 50% of the matting particles having a size of 4 to 7 11 m.
• a particularly preferred particle size is 2.5 to 3.5 1 1m. Matting particles of this size guarantee excellent reproduction of identification features applied using printing technology down to the finest details (guilloche print) and the ability to label the information carrier with the usual writing materials.
• the matting agents are expediently added to the casting solutions of the gelatin layers in the form of aqueous dispersions.
• Matting agents are not necessary in the inner gelatin layers. However, if this is e.g. should be of importance for the production and processing of the information carrier, this should also be incorporated without impairing the quality of the finished document.
• matting agents When used in outer layers, matting agents can cause layer opacity, so that an underlying developed silver image appears behind a milky veil. This can be corrected by adding small amounts of polycarbocyclic aromatic sulfonic acids or their water-soluble salts, as described in BE-PS 738 856, to the outer layer.
• the gelatin layers of the information carrier contain, based on the gelatin content of the dry layers, 10 to 50% by weight of polymer (dry weight), preferably 25 to 40% by weight and up to 40% by weight, preferably 20 to 30% by weight, of matting agent .
• the gelatin layers of the information carrier may contain the additives customary for photographic layers, such as hardening agents, e.g. Formaldehyde, mucochloric acid, triacryl formal, triazine hardener, epoxy compounds, aziridines, vinylsulfonyl compounds, carbodiimides or hardeners of the carbamoylonium and carbamoyloxypyridinium compound type, hardening accelerators, e.g.
• hardening agents e.g. Formaldehyde, mucochloric acid, triacryl formal, triazine hardener, epoxy compounds, aziridines, vinylsulfonyl compounds, carbodiimides or hardeners of the carbamoylonium and carbamoyloxypyridinium compound type
• hardening accelerators e.g.
• Resorcinol polyvinyl acetams and polyvinyl acetones such as poly-N-vinyl pyrrolidone and polyvinyl-2-oxazolidone as antifoggants
• antistatic agents such as polyalkylene compounds, polyoxyalkylene esters of fatty acids, e.g. Polyoxyethylene glycol (molecular weight about 300), oleic acid esters, urethanes or esters of alkoxylated hydroxyl compounds as described in DE-PS 706 563, or alkali, alkaline earth or ammonium salts of inorganic acids or of organic sulfonic and carboxylic acids.
• the gelatin layers can also contain the usual coating aids or wetting agents, such as saponin, dialkylsulfosuccinic acid salts, salts of alkylsulfonic acids or of alkylaryl polyether sulfonic acids, carboxy-alkylated polyethylene glycol ethers or esters or fluorine-containing organic wetting agents of known structure, in particular perfluorinated carbon or sulfonic acids or salts thereof.
• coating aids or wetting agents such as saponin, dialkylsulfosuccinic acid salts, salts of alkylsulfonic acids or of alkylaryl polyether sulfonic acids, carboxy-alkylated polyethylene glycol ethers or esters or fluorine-containing organic wetting agents of known structure, in particular perfluorinated carbon or sulfonic acids or salts thereof.
• the information carrier will generally consist of a photographic material which is constructed in a conventional manner, that is to say a light-sensitive silver halide emulsion layer, on a conventional layer carrier.
• the silver or dye information contained in this layer is produced by imagewise exposure and the usual photographic processing.
• Both photographic paper and films containing black-and-white or color photographic records, image and / or characters and / or other information or other identification features can be used as information carriers.
• the layer support of such photographic information supports can consist of the usual materials used in technical or image photography. Examples include: papers, papers provided with reflective layers, polyolefin-coated papers, the usual film supports, e.g. made of cellulose triacetate or polyester, optionally as a pigmented, opaque substrate.
• the photographic emulsion or auxiliary layers of such information carriers have the compositions generally used in photographic materials.
• Examples of light-sensitive photographic layers with which the information carrier can be equipped are layers which are based on non-sensitized silver halide emulsions or spectrally sensitized silver halide emulsions.
• the known gelatin layers used for the various photographic black and white and color processes, negative, positive and diffusion transfer processes or printing processes are therefore suitable. Not only gelatin alone can be contained as a binder in the photographic gelatin layers.
• hydrophilic colloids e.g. Contain cellulose
• the plastics used for the substrate of the information carrier - e.g. the plastic with which the paper base is laminated or the plastic from which the film base is made - which also includes cellulose esters - and the plastics from which the foils used to laminate the information carrier should preferably be selected so that the softening point of the Plastic of the substrate is lower than that of the film material.
• the Melting point is about 10-30 ° C lower than the melting point of the film of the film material carrying the adhesive layer.
• the information carrier Before lamination, the information carrier is provided with halftone and line recordings by imagewise exposure and photographic processing, e.g. with a passport photo and the associated printed and handwritten information.
• the information carrier can contain further security or identification features of the most varied of types, these being able to be generated both photographically and by labeling, printing or embossing.
• the information carrier according to the invention does not differ in any way from the information carriers used in known documents.
• security features visible or imperceptible to the eye, e.g. substances absorbing UV light can be stored in the information carrier, e.g. in the layer support, if this consists of paper, for example as a watermark, or in the outer film, e.g. be contained in the composite film.
• the information carrier e.g. in the layer support, if this consists of paper, for example as a watermark, or in the outer film, e.g. be contained in the composite film.
• Various possibilities of equipping forgery-proof documents with such security features are e.g. described in the following publications: DE-OS 3013238, DE-OS 1 446851, DE-OS 2 908 742, US-PS 3 679 448, GB-PS 1 519 715, DE-AS 2 756 692, US-PS 2 373 540 and U.S. Patent 4,066,873.
• Thermoplastics such as e.g., are suitable as transparent film materials for the lamination of the information carrier.
• So-called composite films made of individual films of the same and different chemical composition can of course also be used.
• Examples include: polyethylene / polyamides, polypropylene / polyamides or polyolefin films with other film materials such as polyesters, e.g. Polyethylene terephthalate.
• Suitable films and composite films are described in Ullmann's Encyclopedia or Technical Chemistry, 4th edition, volume 11, pages 673 ff.
• the thickness of the films used according to the invention depends on the desired rigidity of the identification document. In general, film thicknesses between 15 and 250 microns are rich, thicknesses between 50 and 200 microns are preferred.
• the surface of the film intended to take up the adhesive layer composition can be subjected to a pretreatment prior to coating to improve the bond between the film and the adhesive layer, which ensures a uniform application of the coating solution and increases its adhesive strength. Good results are obtained e.g. with a normal corona treatment.
• the usual known adhesive layers are suitable for connecting the individual foils of a composite foil as well as for connecting the foil or composite foil to the information carrier.
• the same adhesive layers are preferably used for both purposes.
• Suitable adhesive layers contain e.g. Radically curable, ethylenically unsaturated, monomeric, oligomeric or polymeric compounds, predominantly a, ⁇ -unsaturated or vinyl group-containing compounds which contain acrylate and / or methacrylate groups.
• Such adhesive layers including their use, are described in DE-OSs 2 952 322 and 3 027 759.
• Compounds of this type based on polyesters, ⁇ , ⁇ -unsaturated polyesters, polyethers, polyepoxides, polyurethanes, urethane-modified polyepoxides, urethane-modified polyesters and urethane-modified polyethers are particularly suitable.
• the application of the adhesive layer composition to the film can be carried out using the methods customary in the paint industry, e.g. Spraying, rolling, knife coating, printing, dipping, spinning, flooding, brushing, brushing etc. take place.
• the dry layer thickness of the adhesive layer depends on the desired requirements and the expected adhesive effect. In principle, dry layer thicknesses of 0.05 to 50 11 m can be used. Usable results will be achieved with 0.05 to 10 11m. Dry layer thicknesses of 0.05 to 2 ⁇ m are preferred in connection with adhesive layers which contain poly-1,2-alkyleneimine.
• the film is heated to about 50 to 150 ° C. and pressed against the surface of the information carrier, so that a bubble-free and wrinkle-free laminate is produced.
• the lamination is supported by applying pressures in the range of 1 to 10 km / cm 2 .
• adhesive layers made of radiation-curable material as described, for example, in DE-OS 2 952 322, the document is generally exposed to high-energy radiation, for example UV light, electron or gamma radiation, in addition to the heating described, once the lamination has been completed. being UV Use light in conjunction with subbing layers that contain photoinitiators.
• the lamination preferably on both sides of the information carrier, is expediently carried out continuously by bringing the individual information carriers together onto the foils which run off supply rolls and are provided with the adhesive layer.
• the parts containing the information carriers can then be punched out of the resulting band-shaped laminate, the welded film being cut off at a distance of approximately 1 to 2 mm from the edge of the information carrier, depending on the thickness of the information carrier.
• the documents described are excellent forgery-proof.
• the gelatin layers of the information carrier composed in the manner according to the invention surprisingly strengthen the bond between films and information carrier. Even with the help of heat and / or solvents, the document can no longer be separated without completely destroying the information carrier.
• a conventional photographic paper was used as information carrier, the layer carrier of which consisted of paper laminated on both sides with polyethylene, which had an m 2 weight of approximately 120 g.
• the softening point of the polyethylene of the support was 110 ° C.
• the support was equipped with a light-sensitive silver halide gelatin emulsion layer and with a gelatin-containing protective layer and back layer.
• the silver halide emulsion layer was based on a photographic black and white emulsion of the usual composition.
• the layer contained 3.5 g of gelatin and 1.2 g of polyethyl acrylate (particle size about 0.05 11 m ) per m 2 , plus the usual additives, for example wetting agents and hardening agents.
• the layer thickness of the dry layer was 4.7 ⁇ m.
• a protective layer was placed over the silver halide emulsion layer and contained 1.2 g of gelatin, 0.45 g of polyethyl acrylate and 0.3 g of polyacrylonitrile with a particle size of approximately 3 11 m per m 2 .
• the thickness of the dry layer was 1.95 11m.
• a layer was applied to the back of the support which contained 1.8 g of gelatin, 0.65 g of polyethyl acrylate, 0.45 g of polyacrylonitrile and 0.005 g of potassium nitrate per m 2 .
• the thickness of the dry layer was 2.9 11 m.
• the information carrier with the photographic and printing-related identification features was placed between 2 of the above-mentioned polyethylene films, the softening point of which was approximately 122 ° C., so that the adhesive layers of the films came into contact with the two surfaces of the information carrier and the films about 1 mm over the edge of the information carrier protruded.
• the package was then passed between two rollers heated to 90 ° C. and pressed together with a pressure of approximately 1.5 kp / cm 2 .
• the polyethylene films were so firmly attached to the information carrier that when trying to separate the document after the edge bonds had been cut off while heated (approx. 100 ° C), the paper support of the information carrier was destroyed, but its remnants were removed from the films were recorded, which were also irreversibly stretched.
• the connection between the film and the surface of the information carrier could not be broken even by treatment with hot water or with solvents such as chloroform, gasoline, acetic acid or dilute hydrochloric acid.
• the adhesive layer solution described in Example 1 was applied to a corona-irradiated polyethylene terephthalate film and this was glued between two rollers heated to 90 ° C. under a pressure of 5 kp / cm 2 with a likewise corona-irradiated polyethylene film, whereby a composite film was formed.
• a photographic film material was used as the information carrier, which contained a layer support provided with the usual substrate layers and consisting of cellulose triacetate pigmented with titanium dioxide, a silver halide gelatin emulsion layer, a gelatin protective layer lying over this and a gelatin backing layer.
• composition of the three gelatin layers corresponded to that given in Example 1.
• the polyethylene surface of the composite film was coated with the same adhesive layer composition already used in the production of the composite film and laminated to the information carrier as described in Example 1.
• the result was an ID card with excellent flatness.
• the ID document can no longer be separated without completely destroying the photographic material used as the information carrier.
• Example 2 was repeated with the difference that in the three gelatin layers, the polyethyl acrylate was replaced by the corresponding amount of gelatin.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Chemical & Material Sciences (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Laminated Bodies (AREA)
• Credit Cards Or The Like (AREA)
• Tires In General (AREA)
• Road Signs Or Road Markings (AREA)
• Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
• Dental Preparations (AREA)
• Confectionery (AREA)
• Graft Or Block Polymers (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
• Iron Core Of Rotating Electric Machines (AREA)
• Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
• Glass Compositions (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Soil Conditioners And Soil-Stabilizing Materials (AREA)
• Printing Methods (AREA)
• Diaphragms For Electromechanical Transducers (AREA)
• Holders For Sensitive Materials And Originals (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Paper (AREA)
• Materials For Medical Uses (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6138069

Family Applications (1)

Country Status (16)

Families Citing this family (28)

Family Cites Families (14)

• 1981
  • 1981-07-30 DE DE19813130032 patent/DE3130032A1/de not_active Withdrawn
• 1982
  • 1982-06-28 IL IL66155A patent/IL66155A/xx not_active IP Right Cessation
  • 1982-07-13 AU AU85952/82A patent/AU563266B2/en not_active Ceased
  • 1982-07-17 EP EP82106438A patent/EP0071121B1/de not_active Expired
  • 1982-07-17 DE DE8282106438T patent/DE3268806D1/de not_active Expired
  • 1982-07-17 AT AT82106438T patent/ATE17684T1/de active
  • 1982-07-20 NO NO822507A patent/NO822507L/no unknown
  • 1982-07-21 FI FI822583A patent/FI75305C/fi not_active IP Right Cessation
  • 1982-07-21 PT PT75290A patent/PT75290B/pt not_active IP Right Cessation
  • 1982-07-26 JP JP57129112A patent/JPS5825985A/ja active Pending
  • 1982-07-26 US US06/401,654 patent/US4455359A/en not_active Expired - Lifetime
  • 1982-07-27 NZ NZ201392A patent/NZ201392A/en unknown
  • 1982-07-28 CA CA000408300A patent/CA1201648A/en not_active Expired
  • 1982-07-28 GR GR68889A patent/GR77235B/el unknown
  • 1982-07-29 DK DK339682A patent/DK339682A/da not_active Application Discontinuation
  • 1982-07-29 ES ES514517A patent/ES514517A0/es active Granted
  • 1982-07-29 IE IE1826/82A patent/IE53083B1/en unknown

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