DE102008012422A1 - Method for producing a security document and security document with view-dependent security feature - Google Patents

Abstract

The invention relates to a method for producing a security document (1) having a document body made of a plurality of substrate layers (2-9), which comprises a security-direction-dependent security feature, and such a security document (1). Such a security document (1) comprises a document body produced from a plurality of substrate layers (2-9), which are joined to one another, in which a first information is applied or applied in or on at least one of the substrate layers (2-9) and above at least one of the substrate layers (2-9) is formed a viewing restriction arrangement (22) which releases at least two different viewing angles different proportions (AD) of the first information (27) for viewing, wherein the first information (27) and / or the View restriction arrangement (22) at least partially by means of a digital printing method on at least one substrate layer surface (16-19) of the substrate layers (2-9) are printed and in this case a personalizing and / or individualizing information is stored in the security document (1).

Description

The The invention relates to a method for producing a security document with a monolithic one made of several substrate layers Document body and such a security document, which has a security feature which its appearance changes depending on a viewing angle of the security document. In particular, the invention relates to such security documents, which are made entirely of substrate layers, which are plastic and / or polymer-based.

State of the art and background the invention

Out The prior art is a variety of methods of preparation of security documents and the resulting security documents known. Security documents are considered to be documents have at least one security feature, which is a falsification and / or imitation of the security document or parts thereof complicate and / or make impossible. security features are also used to authenticate the security document to check. In the prior art is a variety of different security features known in security documents introduced or applied to this or are.

A Group of security features is designed so that different Shares of stored information among different Viewing angles of the security document are observable or are or are released for viewing.

The stored information is preferably designed so that it is individualizing and / or personalizing. individualizing is an information if it is a distinction of two otherwise identical ones Security documents. For example, one is Serial number of a security document an individualizing Information. Personalizing information is an individualizing one Information containing information about a person who this security document is assigned. Personalizing information for a security document, which for example a Passport, an identification document, an identity card, a Driver's license, an access authorization card, a bank card, one Credit card, etc. include, for example, a name, a first name, a date of birth, etc. In addition, you can biometric information, such as a facial image, Fingerprint data, etc. used as personalizing information become. The individualizing and / or personalizing data can work in different ways in a security document get saved. The storage can on the one hand in a coding and / or encrypted done so that a viewer the information does not readily follow the security document can. It is also possible to graph the information to save in a way in the security document that they perceived by a human observer of the security document and can be captured.

Of the Concept security document is here in a comprehensive sense understood and should include value documents. In particular, be as security documents: identity cards, passports, Driver's licenses, ID cards, stamps, control characters, any Chip cards, visas, tickets, postage stamps, credit cards, bank cards, Banknotes, motor vehicle papers and self-adhesive labels (eg for product protection) considered.

In the EP 0 219 012 B1 is a data carrier which is used, for example, as a passport document, credit card or the like, in which information is introduced by means of a laser beam in a narrower volume range, which are visible in the form of changes in the optical properties due to irreversible, caused by the laser beam material change, wherein the data carrier contains at least one transparent plastic layer, which is provided at least in a partial area with a surface relief in the form of a lenticular grid. In this case, at least a part of the information introduced by means of the laser beam is introduced through the lens grid, so that the change in the optical properties is limited to areas (pixels) whose radial extent is smaller than the diameter of the individual lenses, and where the information were recorded using the laser beam from at least two different directions in the lenticular array, read in the same direction in limited angular ranges and / or metrologically can be detected. About each of the lenses, which are also referred to as lenticular lenses, a laser beam, which is irradiated at a predetermined angle, individually focused. An irreversible material change, usually a pyrolysis up to charring (= material blackening) in the data carrier or security document takes place locally in the focus of the corresponding lenticular lens. If the document is viewed at the specified angle, this material blackening is visible. If, however, a different viewing angle is selected, then The focus "wanders" to another position, which then becomes visible under this viewing angle. This other position can also be blackened with a laser beam at the other deviating angle. Thus, at different viewing angles, different volume areas of the data carrier are released for viewing by the lenticular lenses. The other areas, however, are not visible under a selected viewing angle. Thus, a lenticular lens arrangement may also be considered as a viewing angle dependent viewing restriction arrangement.

From the information stored at different angles of incidence in the disk is under a viewing angle respectively only a selection of pixels or portions of the total stored information visible, noticeable.

From the EP 1 322 480 B1 a recording medium, in particular a credit or identity card, having an upper layer and further layers is known, wherein the upper layer has on its outer side a plurality of lenticular lenses and on the back a display element, which appears to be movable when tilting the recording medium about at least one axis, and The lenticular lenses extend over only a partial area of the entire outer side and the display element is a security element which is printed on an inner card layer. The upper layer with the lenticular lenses arranged thereon and the remaining layers of the recording medium are made of polycarbonate. As security element a security guilloche is described.

Also from the WO 01/29764 A1 a card-shaped data carrier with authenticity elements in the interior is known, which consists of at least one cover sheet and an optical readout system arranged at the top, through which the arranged in the interior authenticity elements from at least two different viewing directions with different information content can be read out, the optical readout of a Lens structure consists of Fresnel lenses. As a production method, it is stated that initially in a first method step the authenticity elements are inscribed in the card body through the cover film and in a second method step the microstructure necessary for reading different viewing directions is applied to or in the cover film.

From the WO 02/11063 A2 is an optically active structure for personalization of cards and the like, and a method for their preparation is known. An optically effective microstructure is proposed for a data carrier of any type in which irreversible changes (information) are inscribed in at least one of a plurality of superimposed films of the data carrier by means of a laser beam, and the information has different information content from different viewing angles on the data carrier ( Tilting or wobbly image). The microstructure consists of mutually parallel, contiguous, approximately strip-shaped regions, both of which are transparent, wherein one region carries a diffractive structure and the other region is diffraction-free and the information to be read is arranged in regions below the microstructure. Also, this described microstructure provides a viewing angle dependent gaze constraint and may be referred to as a gaze constraint arrangement.

The prior art also includes so-called "hidden images" in which the information is encrypted by printing technology and is arranged in such a way that it can be recognized by applying an adequate lenticular grid (for example in the form of an embossed film) DE 199 00 856 C2 described.

The described methods and apparatus for producing such Security documents require expensive visual restraint orders, for example in the form of lenticular lenses or transparent diffractive lenses Structures. In addition, it is described with the Procedures, usually on a blackening of individual areas based in a document body, difficult to get colored information, which are at the same time individualizing and / or personalizing, in the document body of the security document.

Technical problem of the invention

task The invention thus provides a security document and a method to provide for its manufacture, with which a simplified production a security document is possible, which is a viewing angle dependent Security element includes, which preferably individualizing and / or personalizing information.

Broad features of the invention and preferred embodiments

to Solution to the technical problem teaches the invention Method for producing a security document with a multiple document layers produced document body, comprising the steps of: providing a plurality of substrate layers, Insertion or application of a first piece of information in or on at least one of the substrate layers, forming a viewing angle dependent View restriction arrangement, in the document body different under at least two different viewing angles Releases portions of the first information for consideration, Connecting the substrate layers to the document body, in particular by means of a lamination in a heating-cooling press, wherein the first information and / or the viewing restriction arrangement at least partially by means of a digital printing method at least one substrate layer surface of the substrate layers be printed and here a personalizing and / or individualizing Information is stored in the security document. It understands for the skilled person that the above-mentioned process steps not necessarily performed in the order given Need to become. Furthermore, the invention teaches a security document, comprising one of a plurality of substrate layers connected to each other connected document body, in which a first information in or on at least one of the substrate layers is on or applied and above the at least one of Substrate layers formed a view restriction arrangement that is under at least two different viewing angles different proportions of the first information for a View, wherein the first information and / or the viewing angle dependent View restriction arrangement at least partially by means of a digital printing process on at least one substrate layer surface the substrate layers are printed and in this case a personalizing and / or individualizing information in the security document is stored. As digital printing methods, such printing methods regarded as intended for economic purposes Use are provided, printed consecutively Substrate layers with different individual print images to print. Digital printing methods include transfer printing methods, Sublimation and diffusion transfer printing process and re-transfer printing process and inkjet printing process. A digital printing process, such as an inkjet printing process, is able to small pixels (pixels) on a substrate layer surface to print in a fine pattern. Distances in which the individual pixels can be printed, lie in the order of the pixels or below. Any information can thus targeted and easily be printed individually and in color. This will be an introduction of individualizing and / or personalizing information in a simple way possible. A manufacturing process becomes simplified.

Prefers The digital printing process is an inkjet printing process.

at A preferred embodiment is the first information the personalizing and / or individualizing information and is printed by the digital printing method. in this connection can be the individualizing and / or personalizing information printed and stored in a way which allows a viewer, at least the means the viewing restriction arrangement each under a viewing angle shared shares of information in unencrypted To be able to perceive form. It is also possible the individualized and / or personalizing information so to design these in the form of a code, such as a Barcodes or a two-dimensional pixel pattern, filed which is only possible with the help of a corresponding technical verification device can be read out and evaluated.

at A preferred embodiment provides that the personalizing and / or individualizing information colored is printed. About using a digital printing method, For example, an ink-jet printing method, it is simple Way possible, multi-colored or colorful pictures or Print patterns and thus the individualizing and / or personalizing Information also multicolored or colorful to print. Under one Multicolored illustration is an illustration that is multiple Colors includes. Under a colorful illustration here is an illustration understood understood in a human viewer more Color impressions causes, as printing inks to the technical printing Making the picture are used. This means that at least a color impression is caused by a color subtraction. about Color subtraction can be a variety of color impressions in represented by a color space spanned by primary colors, by using individual pixels of different monochrome inks or Inks are arranged adjacent to each other, allowing the human eye perceives a mixed color. Are luminescent colorants containing Inks or inks used, so can by color addition accordingly also a variety of color impressions one by primary colors spanned color space, for example one of the primary colors red, Green and blue color system to be created.

Especially high-quality and durable security documents are obtained, if as substrate layers to which the personalizing information be printed by means of inkjet printing, exclusively Substrate layers of plastic materials, preferably thermoplastic Polymers are used. Substrate layers are particularly preferred made of polycarbonate. Particularly preferred is the document body of the security document as a monolithic document body made of substrate layers, all the same plastic material include. For example, particularly stable and Durable security documents are produced exclusively are made of polycarbonate films. These can be special advantageous and delamination / tamper-proof in a lamination process in a heating-cooling press, preferably cohesively, connect with each other. A separation of the individual substrate layers, from which the monolithic document body made is retroactively without damage after current knowledge is not possible.

at an embodiment are used as a viewing restriction arrangement Imprinted lenticular lenses in one or more substrate layers. This means that the gaze restriction arrangement a Variety of lenticular lenses on an exterior Substrate layer, which is an upper surface of the security document facing, are formed.

A alternative embodiment of a gaze restriction arrangement includes a grid placed on a substrate layer surface is applied, which is above the substrate layer surface is spaced apart, applied to the first information is.

When a grid is considered a design that is printed or too printing areas and spaces arranged between them or spaces. The printed or to be printed Areas as well as spaces can be regular or irregularly formed and / or arranged be.

at a vertical top view of the grid are those under the printed Areas that are printed opaque, arranged portions of the first Hidden information. If you change the viewing direction, so can to look under the opaque printed areas and parts of the information perceive that were previously hidden. For that, first hidden visible parts. The grid is thus dependent different from one viewing direction or one viewing angle Shares of first information free for viewing.

Another preferred embodiment of the invention provides that, when forming the gaze restriction arrangement, at least two different substrate layer surfaces are matched to one another and the plurality of substrate layers are assembled prior to bonding such that the at least two screens in the document body each have at least one substrate layer thickness the substrate layers are spaced apart from each other and disposed above the at least one substrate layer provided with the first information, and release different portions of the first information for viewing under at least two different viewing angles relative to a surface normal of an upper surface of the document body. Such a viewing restriction arrangement may, for example, comprise two strip-type screens whose strips each have a strip width which corresponds to a spacing between two adjacent strips. The two screens are printed on different substrate layer surfaces, preferably on an upper substrate layer surface and a lower substrate layer surface of one and the same transparent or translucent substrate layer so that the strips of both rasters are offset from each other by the strip width. If the substrate layer thus printed on both substrate layer surfaces is observed along the surface normal, ie at a viewing angle of 0 ° with respect to the surface normal of the printed upper side of the substrate layer, information located under the grids is completely masked by the opaque stripes of the raster. When viewed at a different angle, for example plus or minus 45 ° to the surface normal measured in a plane oriented perpendicular to a rectilinear orientation of the strips, up to 50% of an area becomes dependent on the thickness of the substrate visible below the viewing restriction arrangement. This case occurs, for example, when a substrate layer thickness corresponds to a line width of the lines of the two screens. The grid can be different, but each coordinated, be formed. Instead of straight lines with a uniform line width and uniform free spaces between the lines, the lines may have different line widths. Likewise, the printed areas and free spaces or spaces may have any other geometric shapes. These can be regular or irregular. By matched grids are understood to be grids which at a selected distance from one another, under at least one, preferably several viewing angles or viewing directions, enable sight axes through the thus formed viewing restriction arrangement, which is disclosed in US Pat other viewing directions or viewing angles are not released.

The Using a gaze restriction arrangement, the two matched to each other and in different levels of the document body arranged grid, offers the advantage that even the View restriction arrangement by printing on one or several substrate layers can be applied. This is simplified Overall, the production of the security document clearly. to Application of the grid or grid can be any Printing methods used, unless in any of the grid shares of individualizing and / or personalizing information are stored. However, it is preferred that at least one part a grid and / or one or more rasters partially or completely by means of a digital printing method, in particular an ink jet printing process.

Preferably it is provided that the substrate layers are thus collected that at least part of the first information is along (or opposite) a layering direction of the substrate layers a non-zero Distance to the one or more grids of the viewing restriction arrangement in having the document body. The bigger a distance of the first information from the grids becomes, the less Critical is an exact positioning of the first information relative to the grids.

Around a manipulation of the viewing restriction arrangement and / or to make the first information impossible is at one preferred embodiment provided that the substrate layers be compiled so that the grid and / or the first information each on one in a substrate layer stack, from the through Lamination of the document body is made inside lying substrate layer surface are arranged.

The first information is preferably introduced so that in a region of the document body is arranged and that when looking at the upper surface of the document body at a viewing angle of 0 ° with respect to the surface normal of the upper surface the at least two rasters to more than 50%, preferably more than 70%, preferably more than 90%, and most preferably completely is covered. Furthermore, it is possible that the at least two rasters overlap one another at least partially. This means that when looking at the security document body under a viewing angle of 0 ° to the Surface normal of the upper surface layer proportions of the area in which the first information is stored at least two of the at least two screens are hidden.

Except the storage of the personalizing and / or individualizing Information within the first information provided by the view restriction arrangement limited in perception from a viewing angle is the possibility of individualizing and / or personalizing information alternatively and / or additionally in the view restriction arrangement. For this is proposed, the personalizing and / or individualizing To store information in at least one of the grids in the way that the arrangement and / or configuration of at least one of two viewing angles shared proportions of the first information which represents personalizing and / or individualizing information. This means that the individualizing information (in whole or in part) regardless of the content of the first information in the Arrangement and geometric configuration of the shares stored that is from the first information under at least one of the viewing angles be released. For example, it is possible that the proportions of the first information that are under one of the at least two viewing angles are released, one barcode, one alphanumeric code or even an imaging pattern and / or represent. Includes the gaze restriction arrangement at least two rasters, so is the individualizing and / or personalizing information preferably not among all of completely observable at least two viewing angles.

A particularly high protection is thus obtained when a part the personalizing information in the first information and another part encoded in one or at least two rasters are.

The View restriction arrangement can vary over the entire area of a security document or just one Part of this extend. The same applies to the first information.

at In some embodiments it is provided that a grid and the first information passer exact on opposite Substrate layer surfaces are printed.

The gaze restriction arrangement may comprise more than two spaced-apart mapped rasters. It is also possible that the first information is distributed among a plurality of sub-gauges stratschichtoberflächen is printed. This allows further optical effects to be achieved.

In principle, materials which are customary in the field of security and / or value documents can be used as materials for the substrate layers. Preferably, polymer layers are used. The polymer layers can, identically or differently, be based on a polymer material from the group comprising PC (polycarbonate, in particular bisphenol A polycarbonate), PET (polyethylene glycol terephthalate), PMMA (polymethyl methacrylate), TPU (thermoplastic polyurethane elastomers), PE (polyethylene), PP ( Polypropylene), PI (polyimide or poly-trans-isoprene), PVC (polyvinyl chloride) and copolymers of such polymers. Preference is given to the use of PC materials, whereby, for example, but by no means necessarily, so-called low-T _g materials can be used, in particular for the polymer layers on which printing is carried out, and / or for the polymer layers which are coated with the one or more Polymer layers that are printed, on the side with the inkjet printing. Low-T _g materials are polymers whose glass transition temperature is below 140 ° C.

The Polymer layers can be filled or unfilled be used. Contain the filled polymer layers in particular color pigments or other fillers. The polymer layers can also be dyed by means of dyes or colorless and in the latter case transparent or translucent.

It is preferred if the base polymer of at least one of the polymer layers to be joined contains identical or different mutually reactive groups, wherein react at a laminating temperature of less than 200 ° C reactive groups of a first polymer layer with each other and / or with reactive groups of a second polymer layer. As a result, the lamination temperature can be lowered without jeopardizing the intimate bond of the laminated layers. In the case of various polymer layers having reactive groups, this is due to the fact that the various polymer layers can no longer be readily delaminated due to the reaction of the respective reactive groups and formation of a covalent bond. For there is a reactive coupling between the polymer layers to form a covalent bond, as it were a reactive lamination. Furthermore, because of the lower laminating temperature, it is possible to prevent a change in the colored printing ink, in particular a color change. It is preferred in this case if the glass transition temperature T _{g of} the at least one polymer layer before thermal lamination is less than 120 ° C. (or less than 110 ° C. or less than 100 ° C.), the glass transition temperature of this polymer layer after thermal lamination Reaction of reactive groups of the base polymer of the polymer layer with each other by at least 5 ° C, preferably at least 20 ° C, higher than the glass transition temperature before the thermal lamination. In this case, not only is a reactive coupling of the layers to be laminated together carried out, but rather an increase in the molecular weight and thus in the glass transition temperature takes place by crosslinking of the polymer within the layer and between the layers. This complicates delamination in addition, especially as in a manipulation attempt, the high delamination temperatures necessary z. B. can irreversibly damage the colors and so the document is destroyed. Preferably, the lamination temperature when using such polymer materials less than 180 ° C, more preferably still less than 150 ° C. The choice of suitable reactive groups is readily possible for a person skilled in the art of polymer chemistry. Exemplary reactive groups are selected from the group consisting of -CN, -OCN, -NCO, -NC, -SH, -S _x, -Tos, -SCN, -NCS, -H, epoxy (-CHOCH _2), -NH ₂ , -NN ⁺ , -NN-R, -OH, -COOH, -CHO, -COOR, -Hal (-F, -Cl, -Br, -I), -Me-Hal (Me = at least divalent metal, for example Mg), -Si (OR) ₃ , -SiHal ₃ , -CH = CH ₂ , and -COR, where R can be any reactive or non-reactive group, for example -H, -Hal, C ₁ -C ₂₀ - Alkyl, C ₃ -C ₂₀ aryl, C ₄ -C ₂₀ -ArAlkyl, each branched or linear, saturated or unsaturated, optionally substituted, or corresponding heterocycles having one or more identical or different heteroatoms N, O, or S. Other reactive Of course, groups are possible. These include the reaction partners of the Diels-Alder reaction or a metathesis. The reactive groups may be attached directly to the base polymer or linked to the base polymer via a spacer group. Suitable spacer groups are all spacer groups known to the person skilled in the art of polymer chemistry. The spacer groups may also be oligomers or polymers which impart elasticity, whereby a risk of breakage of the security and / or value document is reduced. Such elasticity-promoting spacer groups are known to the person skilled in the art and therefore need not be further described here. By way of example only, spacer groups may be mentioned which are selected from the group comprising - (CH ₂ ) _n -, - (CH ₂ -CH ₂ -O) _n -, - (SiR ₂ -O) _n -, - (C ₆ H ₄ ) _n -, - (C ₆ H ₁₀ ) _n -, C ₁ -C _n -alkyl, C ₃ -C _{(n + 3)} -aryl, C ₄ -C _{(n + 4)} -ArAlkyl, each branched or linear , saturated or unsaturated, optionally substituted, or corresponding heterocycles having one or more identical or different heteroatoms O, N, or S, where n = 1 to 20, preferably 1 to 10. Regarding further reactive groups or possibilities of modification, reference is made to FIGS Reference "Ullmann's Encyclopedia of Industrial Chemistry", Wiley Verlag, electronic edition 2007 , referenced. The term of the base polymer, in the context of the above statements, denotes a polymer structure which does not include any of the above lamination conditions carrying reactive groups. These may be homopolymers or copolymers. There are also compared to the polymers mentioned modified polymers.

worin R¹ und R² unabhängig voneinander Wasserstoff, Halogen, bevorzugt Chlor oder Brom, C₁-C₈-Alkyl, C₅-C₆-Cycloalkyl, C₆-C₁₀-Aryl, bevorzugt Phenyl, und C₇-C₁₂-Aralkyl, bevorzugt Phenyl-C₁-C₄-Alkyl, insbesondere Benzyl sind; m eine ganze Zahl von 4 bis 7, bevorzugt 4 oder 5 ist; R³ und R⁴ für jedes X individuell wählbar, unabhängig voneinander Wasserstoff oder C₁-C₆-Alkyl ist; X Kohlenstoff und n eine ganze Zahl größer 20 bedeuten, mit der Maßgabe, dass an mindestens einem Atom X, R³ und R⁴ gleichzeitig Alkyl bedeuten. Bevorzugt ist es, wenn an 1 bis 2 Atomen X, insbesondere nur an einem Atom X, R³ und R⁴ gleichzeitig Alkyl sind. R³ und R⁴ können insbesondere Methyl sein. Die X-Atome in alpha-Stellung zu dem Diphenyl-substituierten C-Atom (C1) können nicht dialkylsubstituiert sein. Die X-Atome in beta-Stellung zu C1 können mit Alkyl disubstituiert sein. Bevorzugt ist m = 4 oder 5. Das Polycarbonatderivat kann beispielsweise auf Basis von Monomeren, wie 4,4'-(3,3,5-trimethylcyclohexan-1,1-diyl)diphenol, 4,4'-(3,3-dimethylcyclohexan-1,1-diyl)diphenol, oder 4,4'-(2,4,4-trimethylcyclopentan-1,1-diyl)diphenol gebildet sein. Ein solches Polycarbonatderivat kann beispielsweise gemäß der Literaturstelle DE 38 32 396.6 aus Diphenolen der Formel (Ia) hergestellt werden, deren Offenbarungsgehalt hiermit vollumfänglich in den Offenbarungsgehalt dieser Beschreibung aufgenommen wird. Es können sowohl ein Diphenol der Formel (Ia) unter Bildung von Homopolycarbonaten als auch mehrere Diphenole der Formel (Ia) unter Bildung von Copolycarbonaten verwendet werden (Bedeutung von Resten, Gruppen und Parametern, wie in Formel I).For inkjet printing basically all customary inks can be used. Preference is given to the use of a preparation comprising: A) 0.1 to 20 wt .-% of a binder with a polycarbonate derivative, B) 30 to 99.9 wt .-% of a preferably organic solvent or solvent mixture, C) 0 to 10 wt. D) 0 to 10% by weight of a functional material or a mixture of functional materials, E) 0 to 30% by weight of additives and / or auxiliaries, or of a mixture of such substances , wherein the sum of the components A) to E) always gives 100 wt .-%, as ink jet ink. Such polycarbonate derivatives are highly compatible with polycarbonate materials, in particular with polycarbonates based on bisphenol A, such as Makrofol ^® films. In addition, the polycarbonate derivative used is stable to high temperatures and shows no discoloration at lamination-typical temperatures up to 200 ° C and more, whereby the use of the above-described low-Tg materials is not necessary. In particular, the polycarbonate derivative may contain functional carbonate structural units of the formula (I)

wherein R ¹ and R ² independently of one another are hydrogen, halogen, preferably chlorine or bromine, C ₁ -C ₈ -alkyl, C ₅ -C ₆ -cycloalkyl, C ₆ -C ₁₀ -aryl, preferably phenyl, and C ₇ -C ₁₂ -Aralkyl, preferably phenyl-C ₁ -C ₄ alkyl, in particular benzyl; m is an integer from 4 to 7, preferably 4 or 5; R ³ and R ^{4 are} individually selectable for each X, independently of one another is hydrogen or C ₁ -C ₆ alkyl; X is carbon and n is an integer greater than 20, with the proviso that on at least one atom X, R ³ and R ^{4 are} simultaneously alkyl. It is preferred for X, R ³ and R ^{4 to be} simultaneously alkyl at 1 to 2 atoms, in particular only at one atom. R ³ and R ⁴ may be in particular methyl. The X atoms alpha to the diphenyl-substituted C atom (C1) may not be dialkyl-substituted. The X atoms beta to C1 may be disubstituted with alkyl. Preferably m = 4 or 5. The polycarbonate derivative can be prepared, for example, on the basis of monomers, such as 4,4 '- (3,3,5-trimethylcyclohexane-1,1-diyl) diphenol, 4,4' - (3,3- dimethylcyclohexane-1,1-diyl) diphenol, or 4,4 '- (2,4,4-trimethylcyclopentane-1,1-diyl) diphenol. Such a polycarbonate derivative can be used, for example, according to the literature DE 38 32 396.6 are prepared from diphenols of the formula (Ia), the disclosure content of which is hereby incorporated in full in the disclosure of this description. It is possible to use both a diphenol of the formula (Ia) to form homopolycarbonates and a plurality of diphenols of the formula (Ia) to form copolycarbonates (meaning of radicals, groups and parameters, as in formula I).

In addition, the diphenols of the formula (Ia) can also be mixed with other diphenols, for example wise with those of the formula (Ib) HO-Z-OH (Ib), be used for the preparation of high molecular weight, thermoplastic, aromatic polycarbonate derivatives.

worin R einen verzweigten C₈- und/oder C₉-Alkylrest darstellt. Bevorzugt ist im Alkylrest R der Anteil an CH₃-Protonen zwischen 47% und 89% und der Anteil der CH- und CH₂-Protonen zwischen 53% und 11%; ebenfalls bevorzugt ist R in o- und/oder p-Stellung zur OH-Gruppe, und besonders bevorzugt die obere Grenze des ortho-Anteils 20%. Die Kettenabbrecher werden im allgemeinen in Mengen von 0,5 bis 10, bevorzugt 1,5 bis 8 Mol-%, bezogen auf eingesetzte Diphenole, eingesetzt. Die Polycarbonatderivate können vorzugsweise nach dem Phasengrenzflächenverhalten (vgl. H. Schnell "Chemistry and Physics of Polycarbonates", Polymer Reviews, Vol. IX, Seite 33ff., Interscience Publ. 1964 ) in an sich bekannter Weise hergestellt werden. Hierbei werden die Diphenole der Formel (Ia) in wässrig alkalischer Phase gelöst. Zur Herstellung von Copolycarbonaten mit anderen Diphenolen werden Gemische von Diphenolen der Formel (Ia) und den anderen Diphenolen, beispielsweise denen der Formel (Ib), eingesetzt. Zur Regulierung des Molekulargewichts können Kettenabbrecher z. B. der Formel (Ic) zugegeben werden. Dann wird in Gegenwart einer inerten, vorzugsweise Polycarbonat lösenden, organischen Phase mit Phosgen nach der Methode der Phasengrenzflächenkondensation umgesetzt. Die Reaktionstemperatur liegt zwischen 0°C und 40°C. Die gegebenenfalls mitverwendeten Verzweiger (bevorzugt 0,05 bis 2,0 Mol-%) können entweder mit den Diphenolen in der wässrig alkalischen Phase vorgelegt werden oder in dem organischen Lösungsmittel gelöst vor Phosgenierung zugegeben werden. Neben den Diphenolen der Formel (Ia) und gegebenenfalls anderen Diphenolen (Ib) können auch deren Mono- und/oder Bis-chlorkohlensäureester mitverwendet werden, wobei diese in organischen Lösungsmitteln gelöst zugegeben werden. Die Menge an Kettenabbrechern sowie an Verzweigern richtet sich dann nach der molaren Menge von Diphenolat-Resten entsprechend Formel (Ia) und gegebenenfalls Formel (Ib); bei Mitverwendung von Chlorkohlensäureestern kann die Phosgenmenge in bekannter Weise entsprechend reduziert werden. Geeignete organische Lösungsmittel für die Kettenabbrecher sowie gegebenenfalls für die Verzweiger und die Chlorkohlensäureester sind beispielsweise Methylenchlorid, Chlorbenzol sowie insbesondere Mischungen aus Methylenchlorid und Chlorbenzol. Gegebenenfalls können die verwendeten Kettenabbrecher und Verzweiger im gleichen Solvens gelöst werden. Als organische Phase für die Phasengrenzflächenpolykondensation dienen beispielsweise Methylenchlorid, Chlorbenzol sowie Mischungen aus Methylenchlorid und Chlorbenzol. Als wässrige alkalische Phase dient beispielsweise NaOH-Lösung. Die Herstellung der Polycarbonatderivate nach dem Phasengrenzflächenverfahren kann in üblicher Weise durch Katalysatoren wie tertiäre Amine, insbesondere tertiäre aliphatische Amine wie Tributylamin oder Triethylamin katalysiert werden; die Katalysatoren können in Mengen von 0,05 bis 10 Mol-%, bezogen auf Mole an eingesetzten Diphenolen, eingesetzt werden. Die Katalysatoren können vor Beginn der Phosgenierung oder während oder auch nach der Phosgenierung zugesetzt werden. Die Polycarbonatderivate können nach dem bekannten Verfahren in homogener Phase, dem sogenannten "Pyridinverfahren" sowie nach dem bekannten Schmelzeumesterungsverfahren unter Verwendung von beispielsweise Diphenylcarbonat anstelle von Phosgen hergestellt werden. Die Polycarbonatderivate können linear oder verzweigt sein, sie sind Homopolycarbonate oder Copolycarbonate auf Basis der Diphenole der Formel (Ia). Durch die beliebige Komposition mit anderen Diphenolen, insbesondere mit denen der Formel (Ib) lassen sich die Polycarbonateigenschaften in günstiger Weise variieren. In solchen Copolycarbonaten sind die Diphenole der Formel (Ia) in Mengen von 100 Mol-% bis 2 Mol-%, vorzugsweise in Mengen von 100 Mol-% bis 10 Mol-% und insbesondere in Mengen von 100 Mol-% bis 30 Mol-%, bezogen auf die Gesamtmenge von 100 Mol-% an Diphenoleinheiten, in Polycarbonatderivaten enthalten. Das Polycarbonatderivat kann ein Copolymer sein enthaltend, insbesondere hieraus bestehend, Monomereinheiten M1 auf Basis der Formel (Ib), vorzugsweise Eisphenol A, sowie Monomereinheiten M2 auf Basis des geminal disubstituierten Dihydroxydiphenylcycloalkans, vorzugsweise des 4,4'-(3,3,5-trimethylcyclohexan-1,1-diyl)diphenols, wobei das Molverhältnis M2/M1 vorzugsweise größer als 0,3, insbesondere größer als 0,4, beispielsweise größer als 0,5 ist. Bevorzugt ist es, wenn das Polycarbonatderivat ein mittleres Molekulargewicht (Gewichtsmittel) von mindestens 10.000, vorzugsweise von 20.000 bis 300.000, aufweist.Suitable other diphenols of the formula (Ib) are those in which Z is an aromatic radical having 6 to 30 C atoms, which may contain one or more aromatic nuclei, may be substituted, and aliphatic radicals or cycloaliphatic radicals other than those of the formula (II) Ia) or heteroatoms may contain as bridge members. Examples of the diphenols of the formula (Ib) are: hydroquinone, resorcinol, dihydroxydiphenyls, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) cycloalkanes, bis (hydroxyphenyl) sulfides, bis (hydroxyphenyl) ether, bis (hydroxyphenyl) ether, bis (hydroxyphenyl) ether, (hydroxyphenyl) ketones, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) sulfoxides, alpha, alpha'-bis (hydroxyphenyl) diisopropylbenzenes and their nuclear alkylated and nuclear halogenated compounds. These and other suitable diphenols are z. B. in the literature US-A 3,028,365 . 2,999,835 . 3,148,172 . 3,275,601 . 2,991,273 . 3,271,367 . 3,062,781 . 2,970,131 and 2,999,846 , in the literature DE-A 1 570 703 . 2 063 050 . 2 063 052 . 2 211 956 , of the FR-A 1 561 518 and in the Monograph "H. Schnell, Chemistry and Physics of Polycarbonates, Interscience Publishers, New York 1964" , which are hereby incorporated in full in the disclosure of the present application. Preferred other diphenols are, for example: 4,4'-dihydroxydiphenyl, 2,2-bis (4-hydroxyphenyl) propane, 2,4-bis (4-hydroxyphenyl) -2-methylbutane, 1,1-bis ( 4-hydroxyphenyl) cyclohexane, alpha, alpha-bis (4-hydroxyphenyl) -p-diisopropylbenzene, 2,2-bis (3-methyl-4-hydroxyphenyl) -propane, 2,2-bis (3-methyl) chloro-4-hydroxyphenyl) -propane, bis (3,5-dimethyl-4-hydroxyphenyl) -methane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) -propane, bis (3, 5-dimethyl-4-hydroxyphenyl) sulfone, 2,4-bis (3,5-dimethyl-4-hydroxyphenyl) -2-methylbutane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) cyclohexane, alpha, alpha-bis (3,5-dimethyl-4-hydroxyphenyl) -p-diisopropylbenzene, 2,2-bis (3,5-dichloro-4-hydroxyphenyl) -propane and 2,2-bis - (3,5-dibromo-4-hydroxyphenyl) propane. Particularly preferred diphenols of the formula (Ib) are, for example: 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 2,2-bis - (3,5-dichloro-4-hydroxyphenyl) -propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) -propane and 1,1-bis (4-hydroxyphenyl) -cyclohexane. In particular, 2,2-bis (4-hydroxyphenyl) propane is preferred. The other diphenols can be used both individually and in a mixture. The molar ratio of diphenols of the formula (Ia) to the optionally used other diphenols of the formula (Ib) should be between 100 mol% (Ia) to 0 mol% (Ib) and 2 mol% (Ia) to 98 mol -% (Ib), preferably between 100 mol% (Ia) to 0 mol% (Ib) and 10 mol% (Ia) to 90 mol% (Ib) and especially between 100 mol% (Ia) to 0 mol% (Ib) and 30 mol% (Ia) to 70 mol% (Ib). The high molecular weight polycarbonate derivatives from the diphenols of the formula (Ia), optionally in combination with other diphenols, can be prepared by the known polycarbonate production processes. The various diphenols can be linked together both statistically and in blocks. The polycarbonate derivatives used can be branched in a manner known per se. If the branching is desired, this can in known manner by condensing small amounts, preferably amounts of 0.05 to 2.0 mol% (based on diphenols), of trifunctional or more than trifunctional compounds, in particular those with three or more than three phenolic hydroxyl groups can be achieved. Some branching agents having three or more than three phenolic hydroxyl groups are: phloroglucinol, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -hegten-2,4,6-dimethyl-2,4,6- tri- (4-hydroxyphenyl) heptane, 1,3,5-tri- (4-hydroxyphenyl) -benzene, 1,1,1-tri- (4-hydroxyphenyl) -ethane, tri- (4-hydroxyphenyl) - phenylmethane, 2,2-bis [4,4-bis (4-hydroxyphenyl) cyclohexyl] propane, 2,4-bis (4-hydroxyphenyl-isopropyl) -phenol, 2,6-is- (2 -hydroxy-5-methyl-benzyl) -4-methylphenol, 2- (4-hydroxyphenyl) -2- (2,4-dihydroxyphenyl) -propane, hexa- [4- (4-hydroxyphenyl-isopropyl) -phenyl] - orthoterephthalic acid ester, tetra (4-hydroxyphenyl) methane, tetra- [4- (4-hydroxyphenyl-isopropyl) -phenoxy] -methane and 1,4-bis- [4 ', 4 "-dihydroxytriphenyl) -methyl] -benzene , Some of the other trifunctional compounds are 2,4-dihydroxybenzoic acid, trimesic acid, cyanuric chloride and 3,3-bis (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole. As chain terminators known per se regulation of the molecular weight of the polycarbonate derivatives are monofunctional compounds in conventional concentrates. Suitable compounds are for. As phenol, tert-butylphenols or other alkyl-substituted phenols. For controlling the molecular weight, in particular small amounts of phenols of the formula (Ic) are suitable

wherein R represents a branched C ₈ and / or C ₉ alkyl radical. Preferably, in the alkyl radical R, the proportion of CH ₃ protons between 47% and 89% and the proportion of CH and CH ₂ protons between 53% and 11%; also preferably R is in the o- and / or p-position to the OH group, and more preferably the upper limit of the ortho-portion is 20%. The chain terminators are generally used in amounts of 0.5 to 10, preferably 1.5 to 8 mol%, based on diphenols used. The polycarbonate derivatives may preferably be prepared according to the interfacial behavior (cf. H. Schnell "Chemistry and Physics of Polycarbonates", Polymer Reviews, Vol. IX, p. 33ff., Interscience Publ. 1964 ) are prepared in a conventional manner. In this case, the diphenols of the formula (Ia) are dissolved in an aqueous alkaline phase. For the preparation of copolycarbonates with other diphenols, mixtures of diphenols of the formula (Ia) and the other diphenols, for example those of the formula (Ib), are used. To regulate the molecular weight chain terminators z. B. the formula (Ic) are added. Then, in the presence of an inert, preferably polycarbonate-dissolving, organic phase is reacted with phosgene by the method of interfacial condensation. The reaction temperature is between 0 ° C and 40 ° C. The optionally used branching agents (preferably 0.05 to 2.0 mol%) can either be initially charged with the diphenols in the aqueous alkaline phase or added in the organic solvent before phosgenation. In addition to the diphenols of the formula (Ia) and, if appropriate, other diphenols (Ib), their mono- and / or bis-chlorocarbonic acid esters may also be used, these being added dissolved in organic solvents. The amount of chain terminators and of branching agents then depends on the molar amount of diphenolate radicals corresponding to formula (Ia) and optionally formula (Ib); When using chloroformates the amount of phosgene can be reduced accordingly in a known manner. Suitable organic solvents for the chain terminators and optionally for the branching agents and the chloroformates are, for example, methylene chloride, chlorobenzene and in particular mixtures of methylene chloride and chlorobenzene. Optionally, the chain terminators and branching agents used can be dissolved in the same solvent. For example, methylene chloride, chlorobenzene and mixtures of methylene chloride and chlorobenzene serve as the organic phase for the interfacial polycondensation. The aqueous alkaline phase used is, for example, NaOH solution. The preparation of the polycarbonate derivatives by the interfacial process can be catalyzed in a conventional manner by catalysts such as tertiary amines, in particular tertiary aliphatic amines such as tributylamine or triethylamine; the catalysts can be used in amounts of 0.05 to 10 mol%, based on moles of diphenols used. The catalysts can be added before the beginning of the phosgenation or during or after the phosgenation. The polycarbonate derivatives can be prepared by the known method in the homogeneous phase, the so-called "pyridine process" and by the known melt transesterification process using, for example, diphenyl carbonate instead of phosgene. The polycarbonate derivatives may be linear or branched, they are homopolycarbonates or copolycarbonates based on the diphenols of the formula (Ia). By arbitrary composition with other diphenols, in particular with those of the formula (Ib), the polycarbonate properties can be varied in a favorable manner. In such copolycarbonates, the diphenols of the formula (Ia) are present in amounts of from 100 mol% to 2 mol%, preferably in amounts of from 100 mol% to 10 mol% and in particular in amounts of from 100 mol% to 30 mol% %, based on the total amount of 100 mol% of diphenol units contained in polycarbonate derivatives. The polycarbonate derivative may be a copolymer comprising, in particular consisting of, monomer units M1 based on the formula (Ib), preferably, bisphenol A, and monomer units M2 based on the geminally disubstituted dihydroxydiphenylcycloalkane, preferably the 4,4 '- (3,3,5- trimethylcyclohexane-1,1-diyl) diphenol, wherein the molar ratio M2 / M1 is preferably greater than 0.3, in particular greater than 0.4, for example greater than 0.5. It is preferred that the polycarbonate derivative has a weight average molecular weight of at least 10,000, preferably from 20,000 to 300,000.

In principle, component B may be substantially organic or aqueous. Substantially aqueous means that up to 20% by weight of component B) can be organic solvents. Substantially organic means that up to 5% by weight of water may be present in component B). Component B preferably contains one or consists of a liquid aliphatic, cycloaliphatic, and / or aromatic hydrocarbon, a liquid organic ester and / or a mixture of such substances. The organic solvents used are preferably halogen-free organic solvents. Particularly suitable are aliphatic, cycloaliphatic, aromatic hydrocarbons, such as mesitylene, 1,2,4-trimethylbenzene, cumene and solvent naphtha, toluene, xylene; (organic) esters such as methyl acetate, ethyl acetate, butyl acetate, methoxypropyl acetate, ethyl 3-ethoxypropionate. Preference is given to mesitylene, 1,2,4-trimethylbenzene, cumene and solvent naphtha, toluene, xylene, methyl acetate, ethyl acetate, methoxypropyl acetate. Ethyl 3-ethoxypropionate. Most particularly preferred are mesitylene (1,3,5-trimethylbenzene), 1,2,4-trimethylbenzene, cumene (2-phenylpropane), solvent naptha and ethyl 3-ethoxypropionate. A suitable solvent mixture comprises, for example, L1) 0 to 10% by weight, preferably 1 to 5% by weight, in particular 2 to 3% by weight, mesitylene, 12) 10 to 50% by weight, preferably 25 to 50 % By weight, in particular 30 to 40% by weight, of 1-methoxy-2-propanol acetate, 13) 0 to 20% by weight, preferably 1 to 20% by weight, in particular 7 to 15% by weight, 1,2,4-trimethylbenzene, L4) 10 to 50 wt.%, Preferably 25 to 50 wt.%, In particular 30 to 40 wt.%, Ethyl 3-ethoxypropionate, 15) 0 to 10 wt. %, preferably 0.01 to 2 wt .-%, in particular 0.05 to 0.5 wt .-%, cumene, and 16) 0 to 80 wt .-%, preferably 1 to 40 wt .-%, in particular 15 to 25 wt .-%, solvent naphtha, wherein the sum of components L1 to 16 always gives 100 wt .-%. The polycarbonate derivative typically has a weight average molecular weight of at least 10,000, preferably from 20,000 to 300,000.

The Preparation may contain in detail: A) 0.1 to 10 wt .-%, in particular 0.5 to 5 wt .-%, of a binder with a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenylcycloalkane, B) 40 to 99.9 wt .-%, in particular 45 to 99.5 wt .-%, of an organic Solvent or solvent mixture, C) 0.1 to 6 wt .-%, in particular 0.5 to 4 wt .-%, of a colorant or colorant mixture, D) 0.001 to 6 wt .-%, in particular 0.1 to 4% by weight of a functional material or mixture of functional Materials, E) 0.1 to 30% by weight, in particular 1 to 20% by weight, Additives and / or auxiliaries, or a mixture of such substances.

As component C, if a colorant is to be provided, basically any colorant or colorant mixture comes into question. Colorants are all colorants. That means it can be both colorant (a review of dyes there Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley Publishing, Chapter "Dyes, General Survey" ) as well as pigments (gives an overview of organic and inorganic pigments Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley Verlag, chapter "Pigments, Organic" and "Pigments, Inorganic" ) act. Dyes should be soluble or (stably) dispersible or suspendible in the component B solvents. Furthermore, it is advantageous if the colorant at temperatures of 160 ° C and more for a period of more than 5 min. stable, in particular color-stable. It is also possible that the colorant is subjected to a predetermined and reproducible color change under the processing conditions and is selected accordingly. In addition to the temperature stability, pigments must be present in particular in the finest particle size distribution. In the practice of inkjet printing, this means that the particle size should not exceed 1.0 microns, otherwise blockages in the printhead will result. As a rule, nanoscale solid-state pigments and dissolved dyes have proven their worth. The colorants may be cationic, anionic or even neutral. Just as examples of colorants usable in ink-jet printing its called:
Brilliant black CI no. 28440, chromogen CI no. 14645, direct Tiefschwarz E CI no. 30235, Real Black Salt B CI no. 37245, Real Black Salt K CI no. 37190, Sudan Black HB CI 26150, Naphtolschwarz CI no. 20470, Bayscript ^® Black liquid, CI Basic Black 11, CI Basic Blue 154, Cartasol ^® Turquoise K-ZL liquid, Cartasol® Turquoise K-RL liquid (CI Basic Blue 140), Cartasol Blue K5R liquid. Suitable are further z. As the dyes Hostafine ^® Black TS liquid commercially available (sold by Clariant GmbH Germany), Bayscript ^® Black liquid (CI mixture, sold by Bayer AG Germany), Cartasol ^® Black MG liquid (CI Basic Black 11 , Registered trademark of Clariant GmbH Germany), Flexonylschwarz ^® PR 100 (E CI no. 30235, sold by Hoechst AG), rhodamine B, Cartasol ^® Orange K3 GL, Cartasol ^® Yellow K4 GL, Cartasol ^® K GL, or Cartasol ^® Red K-3B. Furthermore, as soluble colorants anthraquinone, azo, quinophthalone, coumarin, methine, perinone, and / or pyrazole, z. B. under the brand name Macrolex ^® available, find use. Other suitable colorants are in the Reference Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley Verlag, chapter "Colorants Used in Ink Jet Inks" described. Well-soluble colorants lead to an optimal integration into the matrix or the binder of the print layer. The colorants may be added either directly as a dye or pigment or as a paste, a mixture of dye and pigment together with another binder. This additional binder should be chemically compatible with the other components of the formulation. If such a paste is used as a colorant, the amount of component B refers to the colorant without the other components of the paste. These other components of the paste are then subsumed under the component E. When using so-called colored pigments in the scale colors cyan-magenta-yellow and preferably also (soot) black solid color images are possible.

Component D comprises substances that can be seen directly by the human eye or by the use of suitable detectors using technical aids. Here are the materials known to those skilled in the art (see also van Renesse, Optical document security, 3rd ed., Artech House, 2005 ), which are used to secure value and security documents. These include luminescent substances (dyes or pigments, organic or inorganic) such. As photoluminophores, electroluminophores, Antistokes luminophores, fluorophores but also magnetizable, photoacus table addressable or piezoelectric materials. Furthermore, Raman-active or Raman-reinforcing materials can be used, as well as so-called barcode materials. Again, the preferred criteria are either the solubility in the component B or pigmented systems particle sizes <1 micron and a temperature stability for temperatures> 160 ° C in the sense of the comments on the component C. Functional materials can be added directly or via a paste, ie a mixture with a further binder, which then forms part of component E, or the binder of component A.

Component E in inks for ink-jet printing includes conventionally prepared materials such as anti-foaming agents, modifiers, wetting agents, surfactants, flow agents, dryers, catalysts, (light) stabilizers, preservatives, biocides, surfactants, organic polymers for viscosity adjustment, buffer systems, etc. As setting agents customary setting salts come into question. An example of this is sodium lactate. As biocides, all commercially available preservatives which are used for inks come into question. Examples include Proxel ^® GXL and Parmetol® ^® A26. Suitable surfactants are all commercially available surfactants which are used for inks. Preferred are amphoteric or nonionic surfactants. Of course, it is also possible to use special anionic or cationic surfactants which do not alter the properties of the dye. Examples of suitable surfactants are betaines, ethoxylated diols etc .. Examples are the product series Surfynol ^® and Tergitol ^®. The amount of surfactants is particularly selected in an application for ink-jet printing, for example, with the proviso that the surface tension of the ink is in the range of 10 to 60 mN / m, preferably 20 to 45 mN / m, measured at 25 ° C. A buffer system can be set up which stabilizes the pH in the range from 2.5 to 8.5, in particular in the range from 5 to 8. Suitable buffer systems are lithium acetate, borate buffer, triethanolamine or acetic acid / sodium acetate. A buffer system will be considered in particular in the case of a substantially aqueous component B. To adjust the viscosity of the ink (possibly water-soluble) polymers can be provided. Here all suitable for conventional ink formulations polymers come into question. Examples are water-soluble starch, in particular with an average molecular weight of 3,000 to 7,000, polyvinylpyrrolidone, in particular with an average molecular weight of 25,000 to 250,000, polyvinyl alcohol, in particular with an average molecular weight of 10,000 to 20,000, xanthan gum, carboxymethyl cellulose, ethylene oxide / propylene oxide Block copolymer, especially having an average molecular weight of 1,000 to 8,000. An example of the latter block copolymer is the product series Pluronic ^®. The proportion of biocide, based on the total amount of ink, may be in the range of 0 to 0.5% by weight, preferably 0.1 to 0.3% by weight. The proportion of surfactant, based on the total amount of ink, can range from 0 to 0.2 wt .-%. The proportion of adjusting agents, based on the total amount of ink, 0 to 1 wt .-%, preferably 0.1 to 0.5 wt .-%, amount. The auxiliaries also include other components, such as, for example, acetic acid, formic acid or n-methyl-pyrrolidone or other polymers from the dye solution or paste used. With respect to substances which are suitable as component E, is supplemented, for example, on Ullmann's Encyclopaedia of Chemical Industry, Electronic Release 2007, Wiley Publishing, Chapter "Paints and Coatings", Section "Paint Additives" , referenced.

The The preparation described may be identical or similar Way also as printing ink for other printing methods than Inkjet printing process can be used.

The Use of the preparation in connection with substrate layers, made of polycarbonate, offers the advantage that when laminating a monolithic document body results in which the ink or ink completely cohesively is homogeneously integrated. Also, make large printed areas thus no risk regarding a possible unwanted Delamination, as is common with many other printing inks the case is.

One embodiment provides that the at least two screens are printed by means of an ink comprising nanoscale TiO ₂ pigments and / or nanoscale metallic pigments, in particular based on nickel or silver.

The Features of the security document according to the invention have the same advantages as the corresponding features of the invention Procedure on. The invention will be described below with reference to preferred Embodiments with reference to a drawing explained in more detail. Hereby show:

1 a schematic structure of a security document with a lenticular lens arrangement as a viewing restriction arrangement;

2 a schematic representation of a layer structure of a security document, which having a raster-containing gaze restriction arrangement;

3a - 3c schematic representations of matched grids and a first information;

3d a schematic sectional view illustrating the different directions of view;

3e a schematic oblique central plan view of the grid spaced apart and the first information;

3f a schematic view obliquely from the left on the superimposed spaced apart grid and the first information;

3g a schematic view obliquely from the right on the superimposed spaced apart grid and the first information;

4a - 4c a further embodiment of two matched grids and a first information adapted thereto;

5a - 5c another embodiment of matched grids and a first information; and

6a - 6f schematic representations of matched grids and a first information and resulting different views under different viewing directions on a security document produced therefrom.

In 1 is a schematic section through a security document 1 shown. This is made up of several substrate layers 2 - 9 manufactured, which are preferably all made of a plastic material, particularly preferably made of the same plastic material. As a particularly suitable plastic material, polycarbonate has been found.

In the following, the production of a security document will be briefly described with reference to the schematic illustration 1 be explained.

One back 10 of the security document to be produced 1 is a 50 micron thick substrate layer facing, which is transparent. The back 10 of the security document 1 remote substrate layer surface 11 the lowest substrate layer 2 is preferably at least partially printed. Over the substrate layer 2 becomes a 100 μm thick, likewise transparent substrate layer 3 arranged, which may also be partially printed on a substrate layer surface. Over the two lowest print layers 2 and 3 becomes another 50 μm thick substrate layer 4 layered, which is transparent, but is provided with additives which have an increased absorption in a certain wavelength range, for example 1064 nm, and which support a localized blackening in this substrate layer when irradiated with a focused laser. Next, an opaque substrate layer having a thickness of 385 μm is layered over the substrate layers. In the substrate layer stack, two transparent substrate layers follow 6 . 7 with a thickness of 50 microns and 100 microns. Below an upper protective layer 9 , which has a thickness of 50 microns and is also formed laser sensitive, is an opaque substrate layer 8th arranged with a thickness of 100 microns. This is on one of the front 12 of the security document 1 facing substrate layer surface 13 printed. A resulting computational document thickness of 885 μm surpasses a document thickness resulting from lamination in a hot-cold press of the individual layers 2 - 9 to a document body. After lamination, the document thickness is about 760 μm +/- 80 μm. The document body of the security document 1 For example, a monolithic document body may be formed if all substrate layers 2 - 9 consist of the same plastic material, which forms a cohesive connection between adjacent substrate layers during lamination.

During the lamination will have a embossing plate on the back 10 in the substrate layers 2 and 3 lenticular 15 embossed with a lens diameter of about 150 microns. These lenticular lenses 15 form a viewing angle dependent view restriction arrangement 22 , Adapted to a resulting focal length of embossed lenticular lenses 15 is on an upper substrate layer surface 16 or a lower substrate layer surface 17 printing technology by means of an inkjet print a first personalizing information, preferably multi-colored, printed. The first information is on the lenticular lenses 15 imprinted in the way printed, that under different viewing angles of the back 10 of the security document 1 in the finished state, different portions of the first information are visible.

The individual illustrated substrate thicknesses are to be considered as exemplary only. Preferred substrate layer thicknesses for printed substrate layers are between 20 μm and 250 μm, preferably between 50 μm and 150 μm. Only an adaptation of the bottom three layers 2 - 4 in terms of their substrate layer thicknesses and a radius of the formed lenticular lenses 15 has taking into account the refractive indices of the substrate layers 2 - 4 to be done so that the printed first information 27 or corresponding portions thereof after completion of the security document by the lenticular lenses 15 good to look at.

It is understood by the skilled person that in the security document additionally incorporated any other security features and can be introduced. These can be, for example an insertion of a microchip, an insertion of a holographic Structure, a laser personalization, more security prints etc. include. Furthermore, it is understood by the skilled person that the security documents are produced in multiple use can. This means that on the individual substrate layers individualizing and / or personalizing information of several Security documents are applied. Only after a lamination the substrate layers to the, preferably monolithic, layer composite the individual document body produced by singulation.

In 2 is another schematic structure of a security document 1 shown. The same technical features are provided in all figures with the same reference numerals. The security document is also made of several substrate layers 2 - 9 produced. The individual substrate layers 2 - 9 may have identical or different substrate layer thicknesses. The individual substrate layers are preferably made of the same plastic material, particularly preferably all of a polycarbonate material. Individual substrate layers may be opaque. However, embodiments are preferred in which the individual substrate layers are all transparent in the visible wavelength range. At the in 2 In the embodiment shown, a gaze restriction arrangement is realized by means of two matching grids which are arranged on an upper substrate layer surface 18 the inner substrate layer 8th and a lower substrate layer surface 19 the same inner substrate layer 8th are printed. The print is preferably opaque in white or black opaque color. Also adapted to the two grids that are on the substrate layer surfaces 18 and 19 are printed, a first information by printing on a substrate layer surface of one of the substrate layers 2 - 7 printed in a substrate layer stack 20 , the gathering of the individual substrate layers 2 - 9 is formed before joining, is arranged below the layer. Preferably, the first information is printed on a substrate layer surface of one of the substrate layers 2 - 7 applied in the document body when bonding the substrate layers 2 - 9 is formed along a lamination direction 21 the substrate layers 2 - 9 from the substrate layer surfaces 18 . 19 to which the grid 25 . 26 are printed, spaced apart. This means that the first information 27 viewed from the front 12 of the security document below the view restriction arrangement 22 is arranged or printed. The view restriction arrangement 22 includes the along the lamination direction 21 spaced apart printed mapped raster. The first information 27 is thus preferably by printing on a lower surface 23 the substrate layer 7 or an upper surface 24 the underlying substrate layer 6 printed. When printing the at least two screens 25 . 26 on the substrate layer surfaces 18 . 19 and the first information 27 is a personalizing information in the security document 1 saved. This can be done, for example, that the first information 27 includes individualizing and / or personalizing information.

In In any case, at least the part of the trained security feature, which includes the personalizing information by means of a printed by digital printing method. The following is an example each an ink-jet printing method as a digital printing method used.

If the first information comprises the individualizing and / or personalizing information, then this information is printed by means of an inkjet printing process. Preferably, the first information is colored and printed in such a way that the color impressions caused by a viewer exceed the number of used printing inks or printing inks. This is realized by the fact that in the human viewer by a screening of the printed image hervorru a certain color impression fenden areas by means of different primary colors are printed, which then cause a subtle color mixture (in Körperfarbven) or additive color mixing (in luminescent, self-chandeliers) in the viewer a mixed-color color impression.

It is also possible, alternatively or additionally, at least one of the grid 25 . 26 on the substrate layer surfaces 18 . 19 to print with opaque printing inks by means of an inkjet printing process. Will be one of the two grids 25 . 26 or both are rasters 25 . 26 produced by means of an inkjet printing process and encoded in them a personalizing and / or individualizing information, the first information 27 be made with a non-digital printing process or be introduced by means of a laser engraving in a corresponding substrate layer.

The storage of an individualizing and / or personalizing information in one of the grids is intended below in connection with 6 be explained in more detail.

Advantageously, the components of the gaze restriction arrangement become 22 and the first information deposited on substrate layer surfaces, the interior substrate layer surfaces in the substrate layer stack 21 are or internal levels of the formed therefrom, for example by means of a lamination in a hot-cold press document body. As a result, a manipulation of individual elements is made much more difficult.

In addition to the gaze restriction arrangement 22 and the first information printed on the inside spaced therefrom 27 can in the security document 1 any other security features are incorporated and integrated.

to Formation of a viewing restriction arrangement that at least includes two rasters, it is required the customized raster print accurate to each other or to order. Therefore, it is preferably, the grid as possible on opposite substrate layer surfaces to print one of the inner substrate layers. This is but not mandatory. It is also possible the at least two rasters each on upper substrate layer surfaces to each other adjacent or stacked Substrate layers to be printed and the substrate layers during collation Align exactly to each other. Be the individual substrate layers for example, provided as sheets and printed, so a three-point system is well known to those skilled in the art is to the individual substrate layers in the substrate layer stack prior to bonding the substrate layers. Likewise is However, it is possible that single or all substrate layers be provided as roles. An alignment the substrate layers, for example by means of printed optical markers and sensors that detect them mechanically be executed. Regardless of how the individual Substrate layers are provided, it is at a printing opposite substrate layer surfaces and the same substrate layer possible, a pressure arrangement, In particular, an ink jet printing arrangement to provide, which to each other aligned printing devices, such as inkjet printheads having. It is also possible, first, a substrate layer surface printed with a grid and the printed grid optoelectronic to capture and adapted to the opposite Substrate layer surface the adapted second raster to print.

Based on 3a - 3g By way of example, an embodiment of a viewing angle-dependent security feature will be described, in which the individualizing information is encoded in the first information applied by printing technology. 3a shows a first grid 25 . 3b shows an adapted second grid 26 and 3c the two grids 25 . 26 adapted first information 27 , The first information 27 includes personal information, such as a name, gender and date of birth of a person. Further, the lines in which information is entered are line numbers in this embodiment 32 Mistake. However, the personalizing information may also include, for example, a facial image or other individualizing and / or personalizing information. The first information 27 is preferably multicolored or colorful.

The first grid 25 includes narrow stripes 28 a first width a and wide spaces 29 , which are twice as wide and thus have a width of 2 · a. The adjusted second grid 26 includes wide stripes 30 with a width of 2 · a and narrow spaces 31 with a width a. The first grid 25 and the second grid 26 are so matched to each other that the narrow stripes 28 with the narrow spaces 31 and the wide spaces 29 with the broad stripes 30 correspond.

To form the gaze assembly, the first grid becomes 25 and the second Ras ter 26 printed on each other in a substrate layer stack spaced different substrate layer surfaces. Preferably, the first grid 25 and the second grid 26 printed on the opposite substrate layer surfaces of one and the same substrate layer register. It will be apparent to those skilled in the art that when printing on a lower surface of a substrate layer, the artwork, here the grid must be printed in mirror image. This is always presupposed elsewhere in this description. Also spaced and located in the security document or in the document body further inside, the first information is introduced.

In 3d is schematically the arrangement of the first grid 25 , the second grid 26 and the first information 27 shown in a sectional view. Below are the line numbers for illustration only 32 the first information in addition to an arrangement of the personalizing information along an X-direction 33 to understand. In 3d Furthermore, three different viewing directions are perpendicular to the security document 35 at a 45 ° angle from the left 36 and at a 45 ° angle from the right 37 located. It can be seen that in the illustrated embodiment, the first grid 25 from the second grid 26 equidistant is like the second grid 26 from the first information 27 , This is not absolutely necessary and determined by the substrate layer thicknesses of the substrate layers or a number of the substrate layers used. The distance of the first grid 25 from the second grid 26 as well as the distance of the second grid 26 from the first information 27 However, they must be coordinated with the design of the raster and the first information to a selective selective perception of individual portions of the first information under different viewing directions 35 - 37 to ensure.

In the 3e - 3g In each case views are presented that offer a viewer when he the security document under the respective viewing directions 35 - 37 considered. To facilitate presentation and explanation, the first raster is 25 , the second grid 26 and the first information 27 each along a Y direction 38 shifted by a predetermined distance c to each other. This shift does not exist in the real security document.

In 3e is the viewing under the line of sight 35 represented, ie perpendicular to the security document 1 , The personalizing information is completely through the first grid 25 and the second grid 26 covered. If one looks at the security document at a 45 ° angle obliquely from the left, one obtains a view that in 3f is shown. Of the personalizing information are the lines 1 . 4 and 7 visible, noticeable. On the other hand, looking at the security document at a 45 ° angle obliquely from the right, as in 3d through the viewing direction 37 is given, so you get the view that in 3g is shown, and it is the lines 2 . 5 and 8th to recognize the personalizing information. It will be understood by those skilled in the art that the visual indications given herein are merely exemplary. That the widths of the spaces 29 . 31 are in the order of magnitude of the substrate layer thicknesses, in reality, only individual pixel rows or multiple pixel areas would be visible in a portion of the first information released for viewing, assuming realistic substrate layer thicknesses of 50 .mu.m to 250 .mu.m. A readable letter would thus be realistically split into strip-shaped sections over a plurality of shared strip-shaped parts. For this purpose, the portions visible in different directions of view are interleaved in the first information.

In 4a - 4c are analogous to a first grid 25 ( 4a ), a second grid 26 ( 4b ) and a first information 27 ( 4c ) shown schematically. The grid 25 . 26 and the first information 27 are again so matched to each other that in a vertical plan view no shares of the individualizing information contained in the first information 27 are symbolized by the letters A, BC and D, can be seen. When viewed obliquely from the right, the proportions of the individualizing first information are 27 on the other hand, when viewed obliquely from the left, the portions labeled with A are marked. When viewed obliquely from above, the proportions C and, when viewed obliquely from below, the proportions D of the individualizing first information are 27 to recognize. The individual components A to D can have different colors, so that different color impressions are obtained under the different viewing angles. The different viewing directions can also be obtained by a corresponding tilting of a security document.

In 5a - 5c are further embodiments of matched grid 25 . 26 and a first piece of information 27 represented, which in this case comprises a pictorial representation. In this embodiment, not all portions of the first information are hidden even when viewed from above. This embodiment is merely intended to indicate that the grid 25 . 26 can be adapted adapted to each other in a variety of ways. The individualizing information here comprises a schematic facial image.

In 6a - 6e an embodiment is shown in which the individualizing and / or personalizing information is additionally encoded in the gaze restriction arrangement, ie in the matched grids. 6a and 6b show a first grid 25 and a second grid 26 , The first grid 25 includes narrow opaque stripes 28 a width a and narrow spaces 31 that have the same width a. The second grid 26 is almost completely opaque and includes individual pixels running as squares 40 who symbolize a house together. This house as a symbol is here assumed as individualizing and / or personalizing information. It will be understood by those skilled in the art that any other individualizing and / or personalizing information may be appropriately encoded in a suitable manner. For example, the individual pixels could 41 be formed differently large and about this, for example, a bar code to be encoded.

In 6c the adapted first information is shown, which also includes individualizing and / or personalizing information in areas A, B and C. At least the second grid 26 and the first information 27 are printed in this embodiment by means of an ink-jet printing process on different substrate layer surfaces, which are spaced apart in the substrate layer stack along the direction of layering. Also the first grid 25 is applied by printing technology to a substrate layer surface, which is arranged in the substrate layer stack above the substrate layer surface, on which the second grid 26 is printed.

In the 6d to 6f are a view diagonally from the left ( 6d ), in plan view ( 6e ) and diagonally from the right ( 6f ) shown schematically. While in top view no individualizing and / or personalizing information can be recognized ( 6e ), are at a top view obliquely from the left ( 6d ) to recognize the areas B and C. In a plan view obliquely from the right ( 6f ), however, the areas A and C can be seen. In addition, the sterilized house is as personalizing and / or individualizing information in 6d and 6f to recognize.

It will be apparent to those skilled in the art that in the embodiment of 6 in which the grid comprises individualizing and / or personalizing information, the first information can also be configured without individualizing and / or personalizing information and in such a case can be produced by means of another printing method.

The described embodiments, in which the gaze restriction arrangement is produced by means of printed rasters, each have two rasters. However, embodiments are also conceivable in which only one grid is used, which is individualized and / or personalized or not. Examples are the in 4b and 6b illustrated grid 26 spaced respectively from the adjusted first information 4c or 6c can be integrated into a security document to form a viewing angle dependent individualized and / or personalized security feature.

all described embodiments is common that the gaze restriction arrangement and the first information, d. h., the viewing angle dependent therefrom formed individualized and / or personalized security feature, about the whole surface or part or more parts of the Surface of the security document.

Prefers be at least the elements that the individualizing and / or Personalizing information comprises by means of an inkjet printing process printed on polycarbonate substrate views.

in the Following are examples of making one for this usable polycarbonate derivative, a preparation of a for the preparation of an ink jet ink suitable liquid Preparation and preparation of a first suitably usable ink-jet printing ink specified.

Example 1: Preparation of a suitable usable polycarbonate derivative

149.0 g (0.65 mol) of bisphenol A (2,2-bis- (4-hydroxyphenyl) -propane, 107.9 g (0.35 mol) of 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 336.6 g (6 moles) of KOH and 2700 g of water are placed in an inert gas atmosphere dissolved with stirring. Then you add one Solution of 1.88 g of phenol in 2500 ml of methylene chloride. In the well stirred solution was at pH 13-14 and 21 to 25 ° C 198 g (2 mol) of phosgene initiated. After that will 1 ml of ethylpiperidine was added and stirred for 45 min. The bisphenolate-free aqueous phase is separated, the organic phase after acidification with phosphoric acid washed neutral with water and freed from the solvent.

The Polycarbonate derivative showed a relative solution viscosity from 1,263. The glass transition temperature was determined to be 183 ° C. (DSC).

Example 2: Preparation of a for the preparation of an ink jet ink suitable liquid preparation

A liquid preparation was prepared from 17.5 parts by weight of the polycarbonate derivative of Example 1 and 82.5 parts by weight of a Lsgm.-blend according to Table I. Table I mesitylene 2.4 1-methoxy-2-propanol 34.95 1,2,4-trimethylbenzene 10.75 Ethyl 3-ethoxypropionate 33.35 cumene 0.105 Solvent naphtha 18.45

It became a colorless, highly viscous solution having a solution viscosity obtained at room temperature of 800 m Pas.

Example 3: Preparation of a first suitable one usable inkjet ink

In A 50 ml wide-necked threaded glass was charged with 10 g of polycarbonate solution from Example 2 and 32.5 g of the solvent mixture Example 2 homogenized with a magnetic stirrer (4% PC solution). It became a colorless, low viscosity solution with a solution viscosity at 20 ° C of 5.02 mPa · s.

The obtained polycarbonate solution was added with about 2% Pigment Black 28 added. The result is an ink by means of which black and white pictures on polycarbonate films can be printed. By an equivalent Addition of other pigments or dyes can be done accordingly produce monochrome and / or colored inks.

A change the resolution of a print dot printed with the ink composite pattern occurs in the joining process, in the substrate layer printed with the pattern with an over it arranged substrate layer is connected, almost not on. This means that the pattern is almost in the same after the lamination same resolution is maintained.

A optical examination of the composite revealed otherwise no recognizable Phase boundary. The composite turned out to be a monolithic block, which also excellently resists delamination.

The described embodiments are merely exemplary Embodiments. The individual features described of the different embodiments be combined with each other in a variety of ways to the To carry out invention.

1

The security document

2-9

substrate layers

10

back

11

Substrate layer surface

12

front

13

Substrate layer surface

14

document thickness

15

lenticular

16

upper Substrate layer surface

17

lower Substrate layer surface

18

upper Substrate layer surface

19

lower Substrate layer surface

20

Substrate layer stack

21

layering direction

22

Looking limiter assembly

23

lower Substrate layer surface

24

upper Substrate layer surface

25

first grid

26

second grid

27

first information

28

narrow strip

29

width interspaces

30

width strip

31

narrow interspaces

32

line numbers

33

X-direction

35-37

viewpoints

38

Y-direction

40

pixels

A-D

shares of individualizing and / or personalizing information

a

distance

c

distance

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 0219012 B1 [0006]
• - EP 1322480 B1 [0008]
• WO 01/29764 A1 [0009]
• WO 02/11063 A2 [0010]
• - DE 19900856 C2 [0011]
• - DE 3832396 [0036]
• US 3,028,365 A [0038]
• - US 2999835 [0038]
• US 3,148,172 [0038]
• US 3275601 [0038]
• - US 2991273 [0038]
• US 3271367 [0038]
• - US 3062781 [0038]
• - US 2970131 [0038]
• - US 2999846 [0038]
• - DE 1570703 A [0038]
• - DE 2063050 [0038]
• - DE 2063052 [0038]
• - DE 2211956 [0038]
• FR 1561518 A [0038]

Cited non-patent literature

• - Reference "Ullmann's Encyclopedia of Industrial Chemistry", Wiley Verlag, electronic edition 2007 [0035]
• Monograph "H. Schnell, Chemistry and Physics of Polycarbonates, Interscience Publishers, New York 1964" [0038]
• - H. Schnell "Chemistry and Physics of Polycarbonates", Polymer Reviews, Vol. IX, p. 33ff., Interscience Publ. 1964 [0038]
• - Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley Publishing, Chapter "Dyes, General Survey" [0041]
• - Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley Verlag, chapter "Pigments, Organic" and "Pigments, Inorganic" [0041]
• - Reference Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley Verlag, chapter "Colorants Used in Ink Jet Inks" [0041]
• - van Renesse, Optical document security, 3rd Ed, Artech House, 2005 [0042].
• - Ullmann's Encyclopaedia of Chemical Industry, Electronic Release 2007, Wiley Publishing, Chapter "Paints and Coatings", Section "Paint Additives" [0043]

Claims (30)

Method for producing a security document ( 1 ) with one of several substrate layers ( 2 - 9 ), comprising the steps of: providing the plurality of substrate layers ( 2 - 9 ), Input or application of a first information ( 27 ) in or on at least one of the substrate layers ( 2 - 9 ), Forming a viewing angle-dependent viewing restriction arrangement ( 22 ), which in the document body have at least two different viewing angles different proportions (A-D) of the first information ( 27 ) for viewing, bonding the substrate layers ( 2 - 9 ) to the document body, in particular by means of a lamination in a heating-cooling press, characterized in that the first information ( 27 ) and / or the viewing restriction arrangement ( 22 ) at least partially by means of a digital printing method on at least one substrate layer surface ( 16 - 19 ) of the substrate layers ( 2 - 9 ) and in this case a personalizing and / or individualizing information in the security document ( 1 ) is stored. Method according to claim 1, characterized in that that the digital printing method is an ink-jet printing method is. Method according to claim 1 or 2, characterized in that the first information ( 27 ) comprises the personalizing and / or individualizing information and is printed by means of a digital printing method. Method according to one of the preceding claims, characterized in that the first information is colored or colored is printed. Method according to one of the preceding claims, characterized in that as the substrate layer ( 2 - 9 ) or the substrate layers ( 2 - 9 ) to which the personalizing and / or individualizing information is printed by means of the digital printing method, one or more plastic layers are provided. Method according to one of the preceding claims, characterized in that in forming the viewing restriction arrangement ( 22 ) at least one raster having opaque areas and free spaces or spaces therebetween is applied to a substrate layer surface spaced above the first information in the produced document body. Method according to one of the preceding claims, characterized in that in forming the viewing restriction arrangement ( 22 ) on at least two different substrate layer surfaces ( 18 . 19 ) matched opaque raster ( 25 . 26 ), and the plurality of substrate layers ( 2 - 9 ) are assembled before joining so that the grid ( 25 . 26 ) in the document body at least by a substrate layer thickness of one of the substrate layers ( 2 - 9 ) spaced apart from each other and above the at least one with the first information ( 27 ) provided substrate layer ( 2 - 9 ) and at least two different viewing angles relative to a surface normal of an upper surface of the document body different proportions of the first information ( 27 ) released for consideration. Method according to one of the preceding claims, characterized in that at least one of the grids ( 25 . 26 ) is printed by a digital printing method. Method according to one of the preceding claims, characterized in that the substrate layers ( 2 - 9 ) are collected so that at least a portion of the first information along (or against) a lamination direction ( 21 ) of the substrate layers is a nonzero distance to the grids ( 25 . 26 ) in the document body. Method according to one of the preceding claims, characterized in that the substrate layers ( 2 - 9 ) are compiled in such a way that the grids ( 25 . 26 ) and / or the first information ( 27 ) each on one in a substrate layer stack ( 20 ), from which is produced by lamination of the document body, inner substrate layer surface ( 16 - 19 ) are arranged. Method according to one of the preceding claims, characterized in that the first information ( 27 ) is disposed so as to be disposed in a portion of the document body which is more than 50%, preferably more than, at a viewing angle of 0 ° with respect to the surface normal of the upper surface through the at least two rasters when viewing the upper surface of the document body 70%, preferably more than 90% and most preferably completely occluded. Method according to one of the preceding claims, characterized in that the personalizing and / or individualizing information in both the first information ( 27 ) as well as in at least one of the grids ( 25 . 26 ) is encoded. Method according to one of the preceding claims, characterized in that the personalizing and / or individualizing information in at least one of the grid ( 25 . 26 ) is stored in such a way that the arrangement and / or configuration of the portions of the first information released under one of the at least two viewing angles ( 27 ) representing personalizing and / or individualizing information. Method according to one of the preceding claims, characterized in that the at least two raster are printed using an ink or printing ink, which comprises nanoscale TiO ₂ pigments and / or nanoscale metal pigments, in particular based on nickel or silver. Method according to one of claims 1 to 5, characterized in that as a viewing restriction arrangement ( 22 ) Lenticular lenses ( 15 ) in one or more substrate layers ( 2 - 9 ) are imprinted or are. Security document ( 1 ) comprising one of a plurality of substrate layers ( 2 - 9 ), which are interconnected, document body, in which a first information in or on at least one of the substrate layers ( 2 - 9 ) is applied or applied, and above the at least one of the substrate layers ( 2 - 9 ) a view restriction arrangement ( 22 ) is formed, the at least two different viewing angles different proportions (A-D) of the first information ( 27 ) for a viewing, characterized in that the first information ( 27 ) and / or the viewing restriction arrangement ( 22 ) at least partially by means of a digital printing method on at least one substrate layer surface ( 16 - 19 ) of the substrate layers ( 2 - 9 ) and in this case a personalizing and / or individualizing information in the security document ( 1 ) is stored. Security document ( 1 ) according to claim 16, characterized in that the digital printing method is an ink-jet printing method. Security document ( 1 ) according to claim 16 or 17, characterized in that the first information ( 27 ) comprises the personalizing and / or individualizing information and is printed by the digital printing method. Security document ( 1 ) according to one of claims 16 to 18, characterized in that the first information ( 27 ) is colored or colored. Security document ( 1 ) according to one of claims 16 to 19, characterized in that as the substrate layer ( 2 - 9 ) or the substrate layers ( 2 - 9 ) to which the personalizing and / or individualizing information is printed by means of the digital printing method, are one or more plastic layers. Security document ( 1 ) according to one of claims 16 to 20, characterized in that the viewing restriction arrangement ( 22 ) at least one grid having opaque areas and free spaces or spaces therebetween is applied to a substrate layer surface spaced above the first information in the produced document body. Security document ( 1 ) according to one of claims 16 to 21, characterized in that the viewing restriction arrangement ( 22 ) at least two matched to different substrate layer surfaces ( 16 - 19 ) applied opaque raster ( 25 . 26 ), which in the document body at least by a substrate layer thickness of one of the substrate layers ( 2 - 9 ) spaced from each other and upper half the one with the first information ( 27 ) provided substrate layer ( 2 - 9 ) are arranged, and are arranged aligned relative to each other, that at least two different viewing angles relative to a surface normal of an upper surface of the document body different proportions (A-D) of the first information ( 27 ) released for consideration. Security document ( 1 ) according to one of claims 16 to 22, characterized in that at least one of the grids ( 25 . 26 ) is printed by a digital printing method. Security document ( 1 ) according to one of claims 16 to 23, characterized in that the substrate layers ( 2 - 9 ) are arranged so that at least part of the first information ( 27 ) along (or against) a lamination direction ( 21 ) of the substrate layers ( 2 - 9 ) a nonzero distance to the grids ( 25 . 26 ) in the document body. Security document ( 1 ) according to one of claims 16 to 24, characterized in that the grid ( 25 . 26 ) and / or the first information ( 27 ) are disposed in the document body inside, spaced from an outer surface are arranged. Security document ( 1 ) according to one of claims 16 to 25, characterized in that the first information ( 27 ) is arranged in a region of the document body which, when viewing the upper surface of the document body at an observation angle of 0 ° with respect to the surface normal of the upper surface, is separated by the at least two screens ( 25 . 26 ) is more than 50%, preferably more than 70%, preferably more than 90% and most preferably completely occluded. Security document ( 1 ) according to any one of claims 16 to 26, characterized in that the personalizing and / or individualizing information is included both in the first information ( 27 ) as well as in at least one of the grids ( 25 . 26 ) is encoded. Security document ( 1 ) according to any one of claims 16 to 27, characterized in that the personalizing and / or individualizing information in at least one of the grid ( 25 ) in such a way that the arrangement and / or configuration of the portions (A-D) of the first information (A-D) released under one of the at least two viewing angles 27 ) representing personalizing and / or individualizing information. Security document ( 1 ) according to one of claims 16 to 28, characterized in that at least one of the screens are printed by means of an ink or printing ink comprising nanoscale TiO ₂ pigments and / or nanoscale metallic pigments, in particular based on nickel or silver. Security document ( 1 ) according to one of claims 16 to 21, characterized in that the viewing restriction arrangement ( 22 ) Lenticular lenses ( 15 ) embedded in one or more substrate layers ( 2 - 9 ) are imprinted.