EP2906431B1 - Book-like value document and/or security document with elastomeric spine - Google Patents

Description

Field of the Invention

The invention relates to a method for producing a book-like value and / or security document, in particular a security identification document in the form of a passport, with a front and back book cover or book cover, with a plurality of data pages and with at least one security laminate with personalization data, wherein at least the data pages and the security laminate along the flange edges or folded edges, which are stacked parallel to one another, are connected to one another by means of an adhesive.

BACKGROUND OF THE INVENTION AND PRIOR ART It is known from practice and can also be used within the scope of the invention to integrate at least one RFID transponder unit according to the ICAO MRTD 9303 standard into the front and back book covers, book covers or into a specially designed data page.

In known passports, the data pages are connected to a book block with at least one thread by means of a seam formed at least in sections, and the book block usually has a so-called attachment which is connected to the book cover. Passport booklets made in this way have a variety of security features and are difficult to forge or replicate. In use, known passport booklets have the disadvantage that the book cover has a high restoring force and that an open flat position is not possible without the booklet closing automatically. Usual passport documents have some 10 to over 48 pages and often there are still relatively stiff data pages made of durable plastic laminates such as polycarbonate or polyester and similar plastics and these data pages must have thicknesses of a few 0.1 mm to over 1.0 mm, typically from 0 , 5 to 0.8 mm to a book block or are usually sewn.

Various variants of the formation of a passport booklet are known in detail, for example, from the literature references discussed below.

In the document CA 2091109 A1 discloses a special security seam process for a security document wherein the seams can be fused together by heat.

In the document EP 1581395 B1 an individualized security document such as passport, passbook or the like described, which has a number of sheets which are connected to one another by means of a stapling or gluing, a security foil being incorporated into the security document by means of stapling or gluing, which has a base film and a decorative layer arrangement comprising the security elements, and the decorative layer arrangement on the has an adhesive layer facing away from the base film. Perforation of the base film including the decorative layer arrangement in the area of stitching or gluing is also mentioned.

In the document EP 1718476 B1 A method for producing a book-like document of value with at least one security insert and at least one transponder unit is mentioned, wherein at least one laminate layer is applied to the at least one side of the at least one security insert and at least one side of the at least one transponder unit, and the at least one security insert and the at least one transponder unit is completely enclosed by the laminate layers and a closed edge running through the laminate layers is formed and such a laminate layer covering is formed, and the at least one transponder unit is personalized after the production of the laminate layer covering and furthermore the laminate layer covering is introduced into a book block and on at least one long side of the laminate layer covering is produced and that the laminate layer covering is sewn into a book block in the area of the overhang.

In the document EP 2004421 B1 a passport is disclosed comprising a booklet consisting of a stack of sheets folded along a fold line, and comprising a cover sheet and a book cover and a reinforcement strip, the booklet, the cover sheet and the reinforcement strip by means of a seam which can be joined extends along the fold line, are sewn together, the unit thus formed is glued over the back of the cover sheet against the back of the book cover, that is, the inner side thereof, and the reinforcing strip against the front of the cover sheet, that is, the Booklet facing side, is glued and further that the reinforcement strip is self-adhesive.

In the document DE 10 2008 023 411 B4 A book-like document, in particular an identification document, is mentioned with a book cover and with a plurality of data pages which are connected to at least one thread by a seam formed at least in sections to form a book block and are provided in the book cover and at least in sections between at least one thread forming the seam and one Data side on which the at least one thread is in contact or between at least one thread forming the seam and at least one seam hole through which the at least one thread penetrates, an adhesive connection is provided, and the at least one thread forming the seam at least in sections has at least one electrically conductive fiber and that the at least one thread forming the seam has a core made of a material with a high melting temperature and the core is at least partially surrounded by at least one coating consisting of a material with a lower melting temperature than the core.

In the document WO 2011/151638 A1 is called a security element for a security booklet with a plurality of sides, the security element having at least one seam line for connecting the plurality of sides and the sewing of at least a first thread and a second thread being formed, the first thread on the outer surface of the the first outermost side and the second thread is disposed on the outer surface of the second outermost side, the first and second threads forming a locked seam with each of a series of spaced openings through the plurality of sides along the line, with one or more selected opening (s), the latch is configured such that a loop of the second thread on the outer surface of the first outermost side of the first thread with an optical property is optically different from the second thread, so that the or each loop of the second thread is on the selected th opening (s) is optically distinguishable from the first thread.

In the document EP 2433810 A1 becomes an identification (ID) document in the form of a booklet containing an A plurality of folded sheets called, consisting of a book cover with a data page from a first and second layer of polycarbonate, which data page is arranged on the inside of the book cover and defines a data page, which has identification data of the subject and connected to the book cover with a connecting page and further the data page has an intermediate layer made of flexible material and this is arranged between the two layers made of polycarbonate and the intermediate layer made of flexible material protrudes beyond the fold line.

From the US 2007/0085321 A1 a method for producing a book-like document is known in which data pages are provided with a perforation along which the pages are folded. The folded pages are then stacked to form a book block and an adhesive is applied to the folded edges of the stacked pages in which the perforations lie. The book block is then punched to size and then glued to a book cover.

These previously known security and / or value documents share the disadvantages mentioned above.

Various types of binding are known from the technological field of book production, which more or less allow flatness of the opened book. This includes the Smythe seam binding as well as adhesive bindings with adhesives based on ethylene

Vinyl acetate (EVA) or polyurethane (PUR). A relatively new binding technique based on perfect binding is the so-called "double binding" (see eg www.doublebinding.com).

Technical problem of the invention

The invention is based on the technical problems of providing a cost-effective and long-lasting production of a passport booklet with high book spine flexibility and the possibility of a flat and open position with a high level of security against forgery or detection of a forgery.

Basics of the invention and preferred embodiments

This technical problem is solved in that before the connection with the adhesive, at least in the region of the flange edges or fold edges of the security laminate and / or the data pages, a plurality of perforation holes are made, that the flange edges or fold edges of the data pages and optionally of the security laminate with the adhesive formed as an elastomeric polymer, wherein the adhesive passes through the perforation holes, and that at the same time the front and back book cover or book cover is formed and with the flange edges or folded edges of the security laminate and the data pages in the area of Spine is connected.

At its core, a particularly durable structure of a permanently elastomeric adhesive bond is achieved, the production taking place, for example, in the form of casting or injection molding or injection molding of a suitable elastomeric material with high tear strength.

Examples of suitable elastomeric materials are thermoplastic polyurethane elastomers (TPU or TPE, e.g. Desmopan® or Texin® from BMS) or PUR (polyurethane reactive e.g. an aliphatic isocyanate; e.g. using the RIM reactive injection molding process) or EVA (ethylene vinyl acetate) hot melt systems, as well as permanently elastic polymer systems ( 2K liquid rubbers such as Flexonal, etc.). The elastomeric polymer can (after hardening) have a hardness of 20 to 70 Shore A, in particular a hardness of 40 to 50 Shore A. The front and back cover or book cover can be compressed in the area of the elastomeric polymer, the compression preferably 10 % to 30% of the thickness of the book cover is, in particular more than 20%. Security elements in the form of nanoscale to micrometer-sized pigments, threads, tubes, platelets, cones, taggants and the like can be added to the elastomeric polymer.

Because the elements to be connected have perforation holes in the region of the flange edges, an adhesive bond is achieved for the long service life required and the requirements for a high level of difficulty in counterfeiting are met. Furthermore, there is a high flexibility of the spine and a low restoring force when the flat position is open.

An RFID transponder unit, preferably in accordance with ICAO MRTD 9303, can preferably be integrated into the value and / or security document. The RFID transponder unit can be arranged in the security laminate and / or in the front or back book cover or book cover.

The perforation holes can basically be made in any way. For example, lasers, in particular short-pulse lasers, in particular CO ₂ lasers, UV lasers, but also classic punching technology, are suitable for producing the holes. Several of these methods can also be combined. Special CO ₂ short-pulse lasers are already used today for the production of the passport numbers, whereby within the scope of the invention no individual hole combinations are required, but constant perforation holes, as described below. Perforation holes of this type can therefore be produced both by means of appropriate CO ₂ short pulse lasers and by means of conventional punching technology.

The perforations may have a diameter of 50 microns to 1000 μ m, especially from 100 μ m to 800 μ m, preferably 200 to 600 μ m, comprise and / or be tapered, with the maximum and the minimum diameter in said areas are ,

Basically, the flange edges or folded edges can be connected to one another and to the elastomeric polymer by means of casting or spraying or dispensing, or by means of thermoplastic injection molding or by means of reactive injection molding (RIM).

When using an open tool to carry out the method according to the invention, the low-viscosity elastomeric polymer can be sprayed or poured or Dispensing can be introduced and a molded tool part can also be attached and in this way the book spine can be designed three-dimensionally, for example with a lettering. The cycle times of such a method are in the range of 2 minutes. Such large quantities can be produced by using multiple devices.

When using a closed mold, a distinction must be made between the use of a RIM (Reaction-Injection-Molding) process and a classic thermoplastic elastomeric injection molding process. In both cases, due to the thin liquid of the elastomeric polymer, attention should be paid to good tool sealing and optimal ventilation. The side seal is important due to the manufacturing tolerances of a passport booklet and should be specially trained. The sprue is, for example, and preferably in the middle on the back of the book cover by means of an open sprue of about 0.5 to 0.7 mm in diameter with a light lens (recess) and a standard sprue cone with a corresponding draft angle and mechanical shearing during demolding or trained when removed from the tool.

Furthermore, the permanently elastic book spine adhesive bond formed with the elastomeric polymer can be made resistant to common solvents and cosmetic articles and sunlight (UV resistance) and it can be designed graphically, and both color effects and lettering can also be realized. In particular, the elastomeric polymer can contain safety features or components customary in the art, such as, for example, but not exclusively, effect pigments, in particular metallic effect pigments, fluorescent substances, stokeshift / up / down conversion substances and particles containing such substances, etc. On the book spine part can also be embossed (protruding or recessed), for example in the form of lettering, graphic representations, etc. Such embossing can easily be achieved by suitable surface structuring, as a negative, of the tools used in the production, for example injection molding.

In addition to the use of a sewn book block which is customary today and consists of a plurality of data page sheets, individual folded data page sheets or single sheets can be used. In order to increase the penetration and anchoring of the elastomeric polymer in the book spine area, small holes are made in the area of the adhesive bond or the data pages and the front and back book covers are made micro-perforated in the area of the elastomeric bond area.

In a further embodiment of the present invention, the front and back book covers or book covers are produced integrally in a casting process. The book cover can only be formed from an elastomeric polymer or it can be the front cover, for example Book cover with the security laminate with the personalization data and the RFID transponder unit are integrated according to ICAO MRTD 9303, the edge being formed from elastomeric polymer. In particular, there are different possible variations.

The front and / or back cover or book cover can be transparent or translucent. Standard security features can be integrated in the book cover or book cover. If the security laminate carries a photo of the holder, the arrangement of the security laminate can be such that this photo is visible through a, preferably the front, book cover or book cover. The same applies to other non-personalized or personalized optically recognizable data on the security laminate. The book cover or book cover can be designed to be transparent or translucent overall, or only in predetermined partial areas, possibly in accordance with the personalized data, which should be visible from the outside.

The front and / or back cover or book cover can have a preferably flexible photovoltaic device which is electrically connected to the RFID transponder and / or a display unit connected to the RFID transponder and / or the photovoltaic device, in particular in the form of a bistable display or OLED displays.

It is useful and practical when handling the finished product if the front and / or back book cover or book cover has a recess in the form of a circular or predetermined non-circular hole or a lateral recess. This makes it easier for a control person to open the document, for example.

In a variant of the invention, in which the book cover or cover is produced in one go with the binding of the data pages and the security laminate from the elastomeric polymer, the front and back book covers or book cover are made from elastomeric polymer by means of insert injection molding and at the same time by pressing or injecting the elastomeric polymer into the previously made perforation holes in the data pages and / or the security laminate the connection to a booklet.

The book covers or book covers can have a thickness of 0.5 to 1.2 mm, in particular 0.6 to 1.0 mm, whether in the context of the above-mentioned integral production of these components or if prefabricated book covers or book covers are used

The perforation holes in the rebate area of the data pages and at the edge of the security laminate have also in the above-described integrated process a diameter of 50 microns to 1,000 μ m, more preferably 100 μ m to 800 μ m, preferably 200 to 600 μ m, on.

Irrespective of the integral production of book cover or cover described above, a flag in the inner fold area with a thickness in the area of the diameter of the perforation holes and a length of preferably 3 to 10 mm can be produced by injection molding. This flag can be formed, for example, from elastomeric polymer that has passed through the perforation holes. Their surfaces can be three-dimensionally shaped and in particular can have a lettering in a raised or recessed design.

The front and back cover of the elastomeric polymer can be produced by insert injection molding and preferably a graphically designed thermoplastic film can be inserted into the injection molding tool before the injection molding process step (in-mold decor injection molding). The thermoplastic film is preferably formed from transparent polycarbonate and is preferably graphically designed on the inside.

The thermoplastic film can also be formed from opaque polycarbonate. It can be equipped with the graphic design by laminating it with a transparent overlay film. If it is inserted into the tool with the overlay film side, the outside of the book cover can be formed in this way. In one embodiment, the polycarbonate laminate has a smaller dimension compared to the book cover format, as a result of which the border is then formed by means of the elastomeric polymer.

The RFID transponder unit can be integrated in the front or back book cover or book cover, preferably in an area made of thermoplastic elastomer. Regardless of this and, if necessary, in addition, the security laminate can be integrated in the front book cover or book cover.

A safety laminate with personalized or non-personalized holes can be integrated in the front book cover or book cover made of elastomeric polymer, the elastomeric polymer being injection-molded from the inside of the book cover or book cover through the holes of the safety laminate to the outside, and wherein on the front side of the book cover by the a lenticular elastomeric raised structure is produced through the holes of the security laminate elastomeric polymer. As a result, the security laminate is additionally bonded for strengthening.

Within the scope of the invention, retaining tabs, for example for flight tickets, credit cards, etc., can also be incorporated into the composite.

A security and / or value document, in particular a passport booklet, which is not claimed, is preferably obtainable by a method according to the invention, comprising a front and back book cover or book cover, a plurality of data pages and at least one security laminate with personalization data, at least the data pages and the security laminate along the flange edges or fold edges, which are stacked parallel to one another, are connected to one another by means of an adhesive, the adhesive being an elastomeric polymer, the adhesive being bonded to the safety laminate in the region of the flange edges or fold edges and / or of the perforated holes attached to the data pages.

With regard to the security and / or value document, all of the objective features that were explained above in connection with the method according to the invention apply analogously and in any combination, so that they do not need to be explained again in detail here.

Figur 1:

einen Querschnitt durch ein Dokument, erhältlich nach dem erfindungsgemäßen Verfahren.

Figur 2:

ein in das Dokument eingesetzter Datenblattbogen, und

Figur 3:

ein Werkzeug zur Durchführung eines erfindungsgemäßen Verfahrens,

The invention is explained in more detail below on the basis of examples which merely illustrate embodiments. Show it:

Figure 1:

a cross section through a document, obtainable by the inventive method.

Figure 2:

a data sheet sheet inserted in the document, and

Figure 3:

a tool for carrying out a method according to the invention,

In the Figure 1 a cross section through a document 1 is shown. One can see a front and back cover 2, a plurality of data pages 3 and a security laminate 4 with personalization data. These elements are connected along their flange web edges or fold edges by means of an elastomeric polymer 5.

In the Figure 2a one recognizes a single data page sheet 7, which is once folded along the broken line 8 in the finished product. A series of perforation holes 6 are arranged in the data side sheet 7 in the region of the flange web or the edge or folded edge of the flange web. These perforation holes 6 can have the same or different designs. They can be arranged at regular or irregular intervals. It is possible to arrange a row of perforation holes 6 or even several rows in the region of the flange. In the exemplary embodiment shown, there are a number of perforation holes 6, each with the same diameter, the hole shape being conical. The perforation holes 6 were prepared -Kurzpulslasers ₂ by means of a CO and have maximum and minimum diameter in the range from 100 μ m to 800 μ m. In the Figure 2b a side view of a folded data page sheet 7 is shown. In this folded manner, the data page sheet 7 is inserted into the tool explained below. Alternatively, a data page sheet that has already been folded can also be cut or punched along the edge of the flange, whereby also perforation holes 6, as in the Figure 2a can be seen.

In the Figure 1 are the book covers or covers 2 compressed in the areas covered by the adhesive 5 in thickness. They also contain perforation holes 6, typically with the same diameter ranges and shapes as the perforation holes 6 in data pages and / or the security laminate 4, in the example approx. 500 μm . They are formed in the same way as the perforation holes 6 in the other components and conical. The outer side of the book cover or -Einbände arranged adhesive areas expediently have a thickness of at least 300 μ m to ensure a stable attachment of the Buchdeckel- or -Einbände. On the outside of the book spine formed from the adhesive 5, a lettering can be raised or recessed in the adhesive 5.

In the Figure 3 A tool 9 for carrying out the method according to the invention is shown. It consists of the molded parts 10, 11, 12 and 13. Between the molded parts 10 and 11, the data pages 3 (provided and folded with the perforation holes 6) and the security laminate (with or without perforation holes on the flange side) are arranged. The front and back book covers or book covers 2 are arranged between the molded parts 10 and 12 and between the molded parts 11 and 13. The molded parts 10, 11, 12 and 13 are subjected to force in the directions of the arrows. Typical clamping force is in the range of 20 to 60 tons, This ensures that the mostly thin adhesive 5 does not flow undesirably along the end faces. The adhesive 5 is then poured or sprayed in the region of the flange. The adhesive 5 comprises the data pages 3, the security laminate 4 and the book cover or the book cover 2 and penetrates into the perforation holes 6 and passes through them. Hotmelt EVA, reactive PU hotmelt or silicone hotmelt can be used as systems for adhesive 5. Examples of suitable products include Desmodur®, Desmoflex® and Desmovit® from BMS Bayer MaterialScience GmbH, Flexonal® from Bachmann Kunststoff Technologie GmbH and polyurethane adhesives from Apollo Chemicals Ltd.

A finished document comprises, for example, 10 to 50 data pages 3, a security laminate 4 or two such security laminates 4, a front and back book cover or book cover 2, and optionally an RFID transponder unit, for example in accordance with ICAO MRTD 9303 the security laminate 4 or the book cover or book cover 2 may be arranged or incorporated.

As an alternative to the representation in the Figure 3 no book cover or book cover 2 can be inserted into the tool 9. Then the molded parts 10 and / or 12 and 11 and / or 13 are formed as negative molds of a book cover or book cover 2 to be produced by injection molding or casting, so that when spraying or Pouring the adhesive 5 which flows into this negative mold and these components are formed in one go together with the connection of the other components in the manner described. In addition, reference is made to the general part of the description.

Claims (15)

1. A method of fabricating a book-like document of value and/or security document (1), in particular a passport-document, having
   a front-side and a rear-side binding or book cover (2),
   a plurality of data pages (3), and
   at least one security laminate (4) including personalisation data,
   with at least the data pages (3) and the security laminate (4) being adhered to each other along the gutter edges or gutter folding edges, which are arranged parallel to each other in a stack, by means of an adhesive (5),
   with a plurality of perforation holes (6) being disposed at least in the area of the gutter edges or gutter folding edges of the security laminate (4) und/or the data pages (3) before the latter are joined to the adhesive (5), and
   with the gutter edges or gutter folding edges of the data pages (3) and, optionally, of the security laminate (4) being adhered to each other by means of the adhesive (5) realised in the form of an elastomeric polymer (5), said polymer (5) passing through, or entering into said perforation holes (6),
   characterised in that in the area of the book spine, the front-side and rear-side bindings or book covers (2) are both adhered to the gutter edges or gutter folding edges of the security laminate (4) and of the data pages (3) by means of the adhesive (5) realised in the form of an elastomeric polymer (5).
2. The method as claimed in claim 1, characterised in that the document of value and/or security document (1) has an RFID transponder unit, preferably according to document 9303, MRTD, issued by the ICAO, in particular in that the RFID transponder unit is integrated in the security laminate (4) and/or in the front-side or rear-side binding or book cover (2).
3. The method as claimed in any one of claims 1 or 2, characterised in that the perforation holes (6) are created by means of a laser, in particular a short-pulse laser, in particular a CO2 laser, a UV laser or by means of some punching technique, or by means of a combination 25 of two or three of these methods.
4. The method as claimed in any one of claims 1 to 3, characterised in that the perforation holes (6) have a diameter of between 50 µm and 1,000 µm, in particular between 100 µm and 800 µm, preferably between 200 and 600 µm, and/or in that the perforation holes (6) are conically shaped, with the maximum diameter and the minimum diameter lying within the aforementioned ranges.
5. The method as claimed in any one of claims 1 to 4, characterised in that the elastomeric polymer (5) is a TPU or TPE (thermoplastic polyurethane elastomer) or a PUR-based or EVA (ethylene vinyl acetate)-based hot melt system, and/or in that the elastomeric polymer (5) has a hardness of between 20 and 70 Shore A, in particular a hardness of between 40 and 50 Shore A, and/or in that the front-side and rear-side book covers or bindings (2) are formed in a compressed manner in the area of the elastomeric polymer, the degree of compression being preferably between 10 % and 30 %, in particular more than 20 %, of the thickness of the binding or book cover (2).
6. The method as claimed in any one of claims 1 to 5, characterised in that the interconnection of the gutter edges or gutter folding edges with each other and with the elastomeric polymer (5) is realised through moulding or spraying or dispensing or by thermoplastic injection moulding or by means of a reaction injection moulding (RIM) technique.
7. The method as claimed in any one of claims 1 to 6, characterised in that the front-side and/or the rear-side binding(s) or book cover(s) (2) is/are formed in such a manner as to be transparent or translucent in its/their entirety or in sections thereof and optionally integrate(s) security features and in that the security laminate (4) contains a photograph of the passport holder which is visible through one, preferably the front-side, book cover or binding (2).
8. The method of fabricating a book-like document of value as claimed in any one of claims 1 to 7, characterised in that the front-side and/or the rear-side book cover or binding (2) have/has a preferably flexible photovoltaic device which is electrically connected to the RFID transponder, and/or a display unit, in particular in the form of a bistable display or an OLED display, that is connected to said RFID transponder and/or to said photovoltaic device.
9. The method as claimed in any one of claims 1 to 9, characterised in that the front-side and/or the rear-side book cover or binding (2) have/has a recess in the form of a circular hole or of a defined, non-circular hole, or in the form of a lateral recess (10).
10. The method of fabricating a book-like document of value (1) as claimed in any one of claims 1 to 9, characterised in that the front-side and rear-side book covers or bindings (2) made of elastomeric polymer are created by means of insert moulding and in that at the same time the elastomeric polymer (5) is pressed, or injected, into the perforation holes (6) which have previously been formed in the data pages (3) and/or the security laminate (4), thus holding them together in the form of a booklet, and in that preferably

    - the book covers or bindings (2) have a thickness of between 0.5 and 1.2 mm, in particular a thickness of between 0.6 and 1.0 mm, and/or

    - in the fold region of the data pages and at the edge of the security laminate (4), the perforation holes (6) have a diameter of between 50 µm and 1,000 µm, in particular between 100 µm and 800 µm, preferably between 200 and 600 µm, and/or

    - in the inner fold region, a slip having a thickness in the range of the diameter of the perforation holes (6) and a length of preferably between 3 and 10 mm is formed by injection moulding, and in that the surfaces are preferably moulded into three-dimensional shapes and in that, in particular, an inscription is formed in a raised or recessed manner.
11. The method as claimed in any one of claims 1 to 10, characterised in that the front-side and rear-side book covers or bindings (2) are made of elastomeric polymer (5) by means of insert moulding 15 and in that preferably a graphically designed, thermoplastic foil is placed into the injection moulding tool (in-mould decoration).
12. The method as claimed in claim 11, characterised in that the thermoplastic foil is formed of transparent polycarbonate and is preferably provided with graphical design on the inner surface.
13. The method as claimed in claim 12, characterised in that the thermoplastic foil made of opaque polycarbonate including the graphical design is laminated together with a transparent overlay foil and is inserted into the tool with the surface having the overlay foil facing thereto, thus forming the outer surface of the book cover, the polycarbonate laminate having smaller dimensions as compared to the format of the book cover so that the elastomeric polymer (5) forms a margin on the book cover (2).
14. The method as claimed in any one of claims 11 to 13, characterised in that the RFID transponder unit is integrated in the front-side or rear-side book cover or binding (2), preferably in a region made of thermoplastic elastomer (5), and in that the security laminate (4) is integrated in the front-side book cover or binding (2).
15. The method as claimed in any one of claims 11 to 13, characterised in that a security laminate (4) including personalised or non-personalised holes is integrated in the front-side book cover or binding (2) made of elastomeric polymer (5), said elastomeric polymer (5) being injection moulded from the inner surface of the book cover or binding (2) in such a manner that it passes onto the outer surface thereof by penetrating through the holes formed in the security laminate (4), a lens-like, raised structure being created on the front-side book cover by the elastomeric polymer (5) passing through the holes in the security laminate (4).

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