DE2163943A1 - Identity card - in laminated plastic with electrophotographically reproduced information - Google Patents

Abstract

Identity card, credit card, pass etc., comprising a substrate layer provided with a barrier layer which in turn carries an organic photoresist layer on which identifying information is or can be applied electrophotographically and developed to make it visible, together with protective films on the surface of the photo-resist carrying such information and on the back of the substrate layer resp.

Description

Identification card The invention relates to a personal identification or Identification card.

Lately, employees of cash have often been using check or credit cards and insert cards used in place of passbooks. There are many other types of document cards in use, such as identification cards. If such a The card is found by a third party and is being used without authorization the original owner of the card caused damage. To protect the owner the card can be identified by a seal, fingerprint, identify a signature and the like. These identifiers or identifications but are not appropriate because they are falsified and only checked by experts can be.

A photo of the owner is often affixed to identification cards in order to To facilitate reliable identification so far it is common, a photo made by silver salt photography on one made of plastic, for example or paper to stick or otherwise fix existing card. One can also take a picture with the help of a Polaroid I, and camera. Other suitable means are not available. Even in these cases there is a risk that the Original photo is removed and another photo is stuck on. Because silver salt photography Requires processing only in the dark and the silver salt photo after completion requires an attachment to the card, an ID card or the like can be used. not produce in a sufficiently short time and in a simple manner. It's an important one The aim of the invention to provide a personal identification card that can be provided with identifying information without difficult handling. The invention is particularly directed to a personal identification card which free from the above and other disadvantages and easily verifiable that carries the identifying information permanently and in a manner that cannot be eradicated excludes counterfeiting. It should also be possible to access the personal identification card a photo or a signature in a short time using a simple procedure copy in such a way that forgery is impossible. Furthermore, the Personal identification card be provided with a film that identifies the Information covers.

Has the personal identification or identification card according to the invention a substrate on which a barrier layer is provided, the one layer made of organic photoresist material, on which electrophotographically developed and identifying information made visible is attached or can be attached, furthermore a protective film on the one provided with the identifying information surface of the organic photoresist layer and a protective film on the back of the substrate.

According to a further feature of the invention can be on the front and / or the back of the layer provided on the surface of the organic photoresist Protective film, a cover layer must be present, which is particularly suitable for visible light impermeable, but possibly for invisible light, e.g. infrared rays, is permeable.

Further features, details and advantages of the invention result from the following description of exemplary embodiments with reference to the drawing. 1 shows a view of an identification card according to the invention in the state of a Black frame development, Figure 2 shows a cross section through an embodiment of a Identification card according to the invention with a protective film 'Fig. 3 is a front view of a manufacture fiction, contemporary identification card and Fig.4,5 and 6 each have a cross section Identification cards according to the invention.

A metal plate, e.g. use aluminum sheet, or an element made of a conductive layer consists of paper or a plastic film. Within the scope of the invention can use conventional conductive layers as indicated below.

1) Conductive layer made of metal or a metal compound; Aluminum- or copper foil or laminate made therefrom; vapor-deposited aluminum or copper layer; vapor deposited or otherwise applied layer of AgJ or CuJ.

2) Conductive layer made of a conductive, quaternary ammonium salt or conductive polymer based on a quaternary ammonium salt or a Sulphonate: conductive polymer ECR - 34 (trade name: available from Dow Chemical); Polyvinylbenzyltrimethylammonium chloride); Conductive polymer # 261 (Trade name; available from Calgon; conductive polymer of the cation type): Oligo-Z (trade name available from Tomoegawa Seishi, conductive oligomer of the anion type).

3) Conductive layer made of a charge-transferring complex compound from polyvinylpyridine and iodine.

As indicated above, according to the invention is on the support a barrier layer is provided on the card which improves the image quality and in particular upon imaging exposure, the tone of the electrostatic latent image improved.

Furthermore, thanks to the barrier layer between the conductive layer and the layer of organic photoresist material ensures increased adhesion. Resins with relatively low electrical properties can be used as a barrier layer, for example Use a resistor, e.g. polyvinyl acetate, vinyl chloride-vinyl acetate copolymer, Nitrocellulose, Polyvinyl methyl ether-maleic anhydride copolymer and acrylonitrile-butadiene copolymer in the form of latex.

On top of the barrier is a layer of organic photoresist material arranged. For this one can advantageously use a coating that consists of an organic Low molecular weight photoresist material and a binder resin or an additive-free coating of an organic photoresist material high molecular weight. Particularly suitable within the scope of the invention are those following common organic photoresist materials.

A) Vinyl carbazole: vinyl carbazole, poly-9-vinyl carbazole, 9-vinyl carbazole copolymer, 3-nitro-9-vinylcarbazole copolymer, nitrated poly-9-vinylcarbazole, poly-9-vinyl-8-aminocarbazole, 3-N-methylamino-9-vinylcarbazole copolymer, halogen-substituted vinylcarbazole, 3,8-dibromo-9-vinylcarbaol copolymer, brominated poly-9-vinylcarbazole, 3-iodo-9-vinylcarbazole, Poly-3,6-diiodo-9-vinylcarbazole, poly-8-benzylideneamino-9-vinylcarbazole, poly-9-propenylcarbazole, Graft copolymer of 9-vinyl carbazole and ethyl acrylate in a molar ratio from 90:10, vinylanthracene-9-vinylcarbazole-Copolymeri sat, homo- or copolymer of 2- (or 8-) vinyl-9-alkyicarbazole, where the alkyl group is a primary alkyl group, e.g.

Methyl ethyl, propyl and the like. is.

B) Aromatic amino derivatives: aminopolyphenyl, N, N'-diakyl-N, N'-diberzylphenylenediamine, N, N, N ', N'-tetrabenzyl-p-phenylenediamine, N, N'-diphenyl-p-phenylenediamine, N, N'-dinaphthyl-p-phenylenediamine, 4,4'-bisdimethylaminobenzophenone and the like.

C) Diphenylmethane and Triphenylmethane: Diphenylmethane dye Zeuco based, triphenylmethane leuco based dye and the like.

D) Heterocyclic compounds: oxadiazole, ethylcarbazole, N-o-hexylcarbazole, 5-aminothiazole, 4,1,2-triazole, imidazolone, oxazole, imidazole, pyrazoline, tmidazoline, Polyphenylenethiazole, 1,6-methoxyphenazine, bis- (N-carbazole -alkane derivatives and pyraz.olinopyra7.oline derivatives.

E) Compounds with condensed systems: benzothiazole, benzimidazole, Benzoxazoles, e.g., 2- (41-diaminophenyl) benzoxazole, 2- (4'-dimethylaminophenyl) benzoxazole and the like, aminoacridine, quinoxaline, diphenylene hydrazones, pyrrocoline derivatives, 9,10-dihydrozanthracene derivatives and the like

F). Compounds with one or more double bonds: acylhydrazone, Ethylene derivatives, 1,1,6,6-tetraphenylhexatriene, 1,1,5-triphenylpeny-1-en-4-yn-3-ol and the like

G) Combination products: Combination products of aldehydes and aromatic compounds Amines, combination products of aromatic secondary amines and aromatic Halides, polypyromethanoimide, polyphenylene-1,3,4-oxadiazole and the like.

H) vinyl polymers (except polyvinyl carbazoles): alkylacrylic acid amide polymer, Polyvinylacridine, poly- [1,5-diphenyl-3- (4-vinylphenyl) -2-pyrazoline], poly (1,5-diphenylpyrazoline), Polyacenaphthylene, ring-substituted polyacenaphthylene, polyvinyl anthracene, poly-2-vinyldibenzothiophene and the like

I) Organic photoconductive oligomers: substances with the following structural formula: where ß, m and n have the word 0 or 1 and ß / m @ n.

Furthermore, p-bis (2-phenyl-4-thiazole) benzene, 2,4-bis-4- (2-phenyl-4-thiazole) -phenyl] thiazole as a seven-membered ring compound, and 1,4-bis [4- { 4- (2-phenyl-4-thizolyl) -phenyl} thiazolyl] benzene mentioned as a nine-membered ring compound.

As indicated above, there are various organic photoresist materials common. Such materials are also in Yukigoseikagaku Kyokaishi, Volume 24 (1966) Described in detail on page 1010 ff. From the traditional organic photoresist materials the poly-9-vinylcarbazoles and their derivatives are particularly prevented because they are highly sensitive and easy to apply. Below are typical Examples of such connections are given.

Poly-9-vinylcarbazole (see U.S. Patent 3,037,861); Poly-3-vinyl-9-alkylcarbazole (see there); Chlorinated poly-9-vinylcarbazoles (chlorine content 2 to 4% by weight, for example poly-3-chloro-9-vinylcarbazole; Poly-3,6-dichloro-9-vinylcarbazole (Belgian Patent 753,619); Brominated poly-9-vinylcarbazoles (bromine content 17 to 46% by weight) such as poly-3,6-dibromo-9-vinylcarbazole, etc. (Japanese Patent Publications 19751/1969 and 25230/1967); Chlorinated brominated poly-9-vinylcarbazoles; Chlorinated iodinated poly-9-vinylcarbazoles; Oyanated poly-9-vinylcarbazoles; Thiocyanates Poly-9-vinylcarbazoles (the latter two compounds are in the Japanese Patent applications 15055/1970 and 98528/1970); Poly-3-methyl-9-vinylcarbazole; Chlorinated poly-3-methyl-9-vinylcarbazoles, for example poly-3-methyl-6-chloro-9-vinylcarbazole (Japanese patent application 66005/1970).

In the context of the invention, such an organic photoresist material those described in Yukigoseikagaku Kyokaishi, Vol. 24, 1966, pp. 1010-1027 Sensitizers are used, for example cyanine dyes such as crystal violet, Malachite green or methylene blue with a nitro group and / or styryl dyes. If necessary, a chemical sensitizer can also be added, for example a Lewis acid such as pycryic acid, 5-nitroacenaphthene, 2,4,7-trinitrofluorenone, Maleic anhydride, chloroacetic acid, anthraquinone. Preferably the sensitizer is added in an amount of 0.1 to 2% by weight of the organic photoresist material. It can be the photosensitive liquid in the form of a solution in methanol, acetone, Chloroform or dimethyl sulfoxide can be added.

The layer of organic photo resist material is made from the or the mentioned material (ien) produced and in a Darkroom exposed to such a spray that the layer has a uniform negative or receives positive charge to 4 to 7 kV Afterwards it is with the help of an optical Projection system with a light-blld exposed that-the person or their signature represents. The latent images obtained in this way are preferably with Developed with the help of a commercially available liquid developer for electrophotography.

If one uses the so-called black frame development5 sharp, veil-free images can be achieved.

Black frame development is a development process in which a sensitiser is used. This in Japanese Patent Publication The method described in 6387/1969 is explained below with reference to FIG. In the entire area of the map located within line A is loaded.

There is then an image-forming exposure in the areas that are surrounded by lines B. j this way, latent electrostatic images, e.g. the signature and the portrait are generated. Eventually the whole area will developed to form visible images. In this black frame development prevents the electric charge that remains in the hatched part in Fig. 1, advantageously a concealment in the areas containing the signature and the portrait included :; However, it can be a disadvantage that the black Frame remains. The images generated in this way can optionally be fixed will. The time it takes to generate the images, that is, from loading to completion of the image is only about 1 to 2 minutes.

On both sides of the map developed in this way is then a Schtitz film is provided. The protective film on the surface with the pictures the layer of the organic photoresist material prevents counterfeiting and protects the images, in particular the photo and the signature, from abrasion beforehand and dirt. As long as the images are not yet fixed, you can use a Fix the adhesive for the protective film and in the adhesive layer for the protective film embed. If then the surface protective film is peeled off when trying to counterfeit the images are peeled off the card along with the protective film or damaged, which makes counterfeiting very difficult.

According to FIG. 2, the surface protective film hides the during development generated black frames. To make a further improvement to the surface protective film the aesthetic effect can be achieved with an imprint 2 in the form of Characters, letters and numbers as well as a pattern and with a cover layer 3 must be provided to cover the black frame, which is the case with the black frame development cklung around the signature and the portrait was created. Additionally will an adhesive layer 4 is preferably provided.

A transparent layer can be used as a protective film, e.g. a hard film made of polyvinyl chloride or a film made of polycarbonate, polystyrene or cellulose acetate. Such a film can contain characters or letters or numbers and / or with a Pattern or with patterns printed and also be provided with a cover layer, which is preferably thin and generally is printed. Imprint and cover layer can be on the surface of the protective film or also according to Fig. 2 on its rear side because it is a forgery can easily be prevented.

The adhesive layer on the back of the protective film does not need it should be planned from the outset. An adhesive can be applied to the protective film Also apply immediately before the protective film is on the surface of the layer attached to the organic photo resistor. The type of glue is not critical, provided it only adheres firmly to the organic photoresist layer able. Below are examples of Elebstoffen that can be found in the framework of the invention are particularly suitable for the surface protective film.

1) Hot glue: latex adhesives, e.g. polyvinyl acetate latex, vinyl acetate-vinyl chloride copolymer latex, Butadiene-styrene copolymer latax and polybutadiene latex, also solution adhesives, e.g.

ein.e alcoholic solution of polyvinyl acetate, a toluene solution of Polybutyl acrylate and a toluene solution of polyvinyl butyl ether.

2) Pressure adhesive: polyisobutylene rosin ester mixture, made from polyisobutylene and ester rubber, mixture of polyvinyl methyl ether and polyvinyl butyl ether.

3) Reaction adhesives: epoxy resin adhesives, urethane adhesives and the like.

The hot melt adhesive, which is usually solid at room temperature, can be removed from these easiest to handle. A hot melt adhesive in the form of a film according to FIG. 2 is stable or permanent and can be glued by heating with a hot roller.

Any material can be used as a protective film on the back use. However, it is preferable to use the same film material as for the surface protection film, so that the card does not curl up. The protective film on the back can almost have the same composition and structure as the surface protective film.

If he starts with characters or numbers or letters and / or with a If the pattern is to be printed, the print is preferably on the inside of the protective film on the back or on the back of the photosensitive element intended. You can use the back protective film with the photosensitive element Stick on before taking a picture or at the same time after taking a picture the surface protection film ..

According to the invention, identifying information, e.g. license plates and a portrait or other photographic recording directly on the organic Photoresist layer produced according to an electrophotographic process. the fiction, contemporary person identification or identification card has therefore compared to the previous identification cards various advantages, in particular the following.

a) The photographic image can be taken in a short time, for example 30s up to 2 min.

b) N'jn can optionally be a positive or negative obtain photographic image by choosing the polarity of the charge accordingly, without any special treatment or a change in treatment time would be required.

c) The photographic image can be generated directly on the card.

No adulteration is possible because of a layer of a surface protection film with; is glued to the picture. To falsify the identifying information the surface protection film must be removed or peeled off, whereby the on the identi fi ed information present in the organic photoresistive layer gets destroyed.

d) The card is not required under normal storage conditions to be kept in the dark. Their handling therefore poses no difficulties whatsoever.

e) The photographic image is composed of inorganic or organic pigment particles composed so that the color image has a much greater lightfastness than usual Color photos. If the toner used for developing is made of carbon black, one can use one Completely prevent discoloration and maintain unchangeable images.

3 shows schematically a photo 6 of the owner of an inventive ID card 5, e.g. en face, and his signature or Code number as well as characters 7 which are printed on an organic photoresist layer of the card 5 with Help generated in the usual way by electrophotography, for example loaded, picture-zenging exposed, developed and fixed. When a. To be entered into a computer Code is used as identifier 7, can di.e card directly in one or each Computer are evaluated, in which the license plate is entered.

FIG. 4 shows on a larger scale an embodiment of one according to the invention Card, the card from a layer carrier 11, a conductive layer 10, a barrier layer 9, an organic photoresist layer 8 and protective films 1 and 1 ', respectively is.

An enlarged cross-section through another embodiment shows Fig.5. The illustrated card according to the invention has a layer support 11, a conductive layer 10 treated with an antistatic agent, a barrier layer 9, an organic photoresist layer 8, a dye-containing layer also serving as a protective film Covering layer, which is made, for example, of a substance with the designation CI 12195, CI 26150, CI 26300, CI 26370, CI 50215 or CI 50420 or a mixture of CI 61705, CI 61505 and (: I 12700 existing dye especially impermeable to visible light and may be transparent to infrared rays, and one provided on the rear side Protective film layer 1 '.

6 shows a further embodiment in an enlarged cross section a card according to the invention, in which protective film layer 1 is sandwiched between a cover layer 12 and an organic photoresist layer 8 is provided. The other reference digits have the same Meanings are shown in Fig. 5. Also on the The cover layer 12 can be provided on the underside of the layer carrier 11.

It also helps prevent counterfeiting.

In this case, the photos should be the signature, the characters or numbers and / or letters consist of a material (toner or printing ink), that is opaque to infrared rays If on the pictures, the signature, the letters etc. a cover layer designed as a filter is provided, can this information only with the help of a detection device that works with infrared, for example, such as an infrared visicon.

In this way, counterfeiting can be prevented very well.

As a cover layer you can use a material that is suitable for a specific Radiation, e.g. infrared radiation, permeable and impermeable to visible @ light is. For the development one uses a oner that absorb infrared radiation can, e.g. soot. To that of the infrared radiation pattern of the covered characters can be an infrared visicon or a hidden character recognition device as described in Japanese Patent Publication 597/1967 is.

The subject of the invention is hereinafter based on further exemplary embodiments explained.

Example 1 1.1. Manufacture of the photosensitive plate.

An aluminum film of 30 µm is made with the help of an epoxy resin adhesive glued to a polycarbonate film 200 µm thick.

To form a barrier layer that, when dry, forms a thickness of 5 µm, the following mass is applied to the aluminum film: Nitrocellulose 10 g titanium oxide 3 g ethyl acetate 40 g butyl acetate 50 g on this barrier layer to form a coating having a dry thickness of 5 µm, a applied light-sensitive liquid of the following composition and then dried, so that a photosensitive plate results: poly-9-vinylcarbazole 3 g monochlorobenzene 45 ml of chlorinated fuel, 1 g of 2-p-dimethylaminobenzylidenemethyl-3,3-dimethyl-5-nitroindole-n-octyl perchlorate 0.015 g 1.2 Production of the surface protection film The personal identification or identification card required information is provided with the help of an offset printing machine 2 in Fig. 2 on the inside of a clear non-plastic polyvinyl chloride film printed with a thickness of 200 µm. A layer of printing ink is then screen-printed on this (Layer 3 in Fig.3) printed, which has a high opacity and only for the signature and the photo leaves the intended areas free.

This layer of printing ink is used to form an adhesive layer (Layer 4 in Fig. 2), which when dry has a thickness of 40 µm, a latex applied from a vinyl acetate-vinyl chloride copolymer latex. This adhesive layer is not adhesive at room temperature, but softens when heated to 120 ° C and adhesive.

1.3 Production of the protective film on the back The required information are on the inside of a 200 mm thick, transparent, non-plastic Printed polyvinyl chloride film. A white cover layer is then applied over the entire surface printed, which hides an aluminum foil used as a conductive layer. the white cover layer can also be applied directly to the back of the photosensitive plate can be printed, or k can be used as the base plate of the photosensitive element Use a milky plate or a milky white plate on the back Provide a protective film and print it with the necessary labels.

1.4 Manufacture of the card After the photosensitive plate in a darkroom with the help of a spray discharge to a voltage of - 6 kV it is placed in a camera that has a lens for taking pictures a person and a stroboscopic lighting device are combined, further a lens for photographing characters with a stroboscopic lighting device. After the imaging exposure, the resulting electrostatic images are obtained preferably developed with a liquid developer, the positively charged, black Particle contains. When using black frame development occurs hardly any obfuscation. At a. ordinary development occurs on the other hand a veil appears on the edge of the picture and the pictures are accordingly not good.

After drying, a hot press is used without a fixing process a surface protective film and a rear protective film on the card at 120 ° glued. The identification card obtained in this way is then cut to the desired size tailored.

All from the claims, the description and the drawing Features and advantages of the invention, including construction details, spatial arrangements and procedural steps, can both for themselves and be essential to the invention in any combination.

- - Claims -

Claims (4)

P a t e n t a n s p r ü c h e y Personal identification card or ID card, g e k e n n -z e i c h n e t d u r c h -a layer support (8 ") on which a barrier layer (9) is provided which has a layer (8) of organic photoresist material carries, on which electrophotographically developed and made visible, identifying Information is attached or can be attached by - a protective film (1) on the with the identifying information provided surface of the organic photoresistive layer (8) and a protective film (1 ') on the back of the support. (11). 2. Card according to claim 1, d a d u r c h g e k e n n z e i c h -n e t that the organic photoresist material (8) made of polyvinyl carbazole or a Derivative thereof 3. Card according to claim 1 or 2, d a d u r c h g e k e n n -z e i c h n e t that at least one protective film (1) with an imprint (2) is provided. 4. Card, in particular according to one of claims 1 to 3, d a d u r notices that on the front and / or back of the protective film provided on the surface of the organic photoresist layer (8) (1) A cover layer (3; 12) is present, which is particularly suitable for visible light opaque, but possibly permeable to invisible light.