WO2006119896A2 - Security paper and a method for the production thereof - Google Patents

Security paper and a method for the production thereof Download PDF

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Publication number
WO2006119896A2
WO2006119896A2 PCT/EP2006/004113 EP2006004113W WO2006119896A2 WO 2006119896 A2 WO2006119896 A2 WO 2006119896A2 EP 2006004113 W EP2006004113 W EP 2006004113W WO 2006119896 A2 WO2006119896 A2 WO 2006119896A2
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WO
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Application
Patent type
Prior art keywords
characterized
paper
security paper
opening
security
Prior art date
Application number
PCT/EP2006/004113
Other languages
German (de)
French (fr)
Other versions
WO2006119896A3 (en )
Inventor
Jürgen Ruck
Manfred Heim
Andreas Pretsch
Original Assignee
Giesecke & Devrient Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29Securities; Bank notes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/405Marking
    • B42D25/43Marking by removal of material
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/005Mechanical treatment
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00Special paper not otherwise provided for, e.g. made by multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D2035/00Nature or shape of the markings provided on identity, credit, cheque or like information-bearing cards
    • B42D2035/34Markings visible under particular conditions or containing coded information
    • B42D2035/36Markings visible under particular conditions or containing coded information visible in transmitted light, e.g. in a window region
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/333Watermarks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/346Perforations

Abstract

The invention relates to a security paper for producing security or value documents such as banknotes, identity cards and the similar comprising at least two through holes (12, 16). According to said invention, the first through hole (12) is embodied during paper production and comprises characteristic irregularities on the edge area thereof (14) whereas the second hole (16) is embodied after the paper production by cutting out or punching and is provided with a sharply outlined edge area (18).

Description

Security paper and method for its preparation

The invention relates to a security paper for the production of Si cherheits- or value documents, such as banknotes, identity cards and the like.

Security papers and value documents are often equipped to hedge with various authenticity features which allow verification of the authenticity of the security paper or document of value and that simultaneously serve as protection against unauthorized reproduction.

In the context of the invention, the term "security paper" the unprinted paper that is typically present in quasi-endless form and is further processed at a later date. As a "value document" means a document that is finished for its intended use. Documents of value in the sense of the present invention include especially banknotes, stocks, bonds, certificates, vouchers, checks, valuable admission tickets and other at risk of counterfeiting documents, such as passports and other identification documents, as well as product protection elements, such as labels, seals, packaging and the like. The simplified designation "security paper" or "value document" includes following all such documents and product protection means.

The document WO 95/10420 describes a value document, in which, after its manufacture, a through hole is punched, which is then sealed on one side with an opening on all sides superior cover. The cover film is at least in a partial area transparently so that shines through the attempt to copy the value document the background and is reproduced by the copier accordingly. In this way, counterfeits can be easily recognized. However, the opening produced by punching can be produced by a forger as well. The color copy of a genuine value document no longer has the transparent area, but this range can be subsequently punched out analogously to the genuine value document and resealed with a suitable cover. Such counterfeits are hard to detect.

As a remedy, in the publication WO 03/054297 it has been suggested to create a through opening already during paper manufacture. Such generated during sheet formation opening has in the edge region to characteristic irregularities which are not producible subsequently on the finished paper. The irregularities are particularly evident by the lack of a sharp cutting edge or through unreactive gelmäßiges accretion of fibers in the edge region and extending into the opening individual fibers. Openings so produced have a similarly high security level as a signal generated in papermaking watermark or in papermaking embedded security thread.

However, such openings produced in paper manufacture often vary in quality and are not easy to produce reproducible. Sometimes there is also the risk that the fiber bundles to close the opening part.

Assuming the invention has for its object to provide a security paper, which avoids the disadvantages of the prior art. In particular, the security paper is intended to be tamper-proof generated in paper making openings with high reproducibility connect during production and good visibility of the authenticity features formed by the openings.

This object is solved by the features of the independent claims. Further developments of the invention are subject of the subclaims.

In a first aspect of the invention, a generic security paper includes at least two through holes, wherein a first of the through holes is generated during the manufacture of paper and having characteristic irregularities in the edge region, and generates a second of the through holes after paper manufacture by cutting or punching with a sharply delimited marginal area is.

The contour shapes of the first and second through-hole are used preferably in a context. In particular that the contour shapes of the first and second through-hole related or complementary information, such as a motif, characters or a code can be provided, representing.

In a preferred embodiment, the second, sharply defined aperture is produced by laser cutting. The sharply defined edge surfaces of the second opening can in this case run parallel and perpendicular to the paper surface. In other embodiments, however, the second opening is formed with Towards the surface normal inclined edge surfaces. This may for example be achieved relative to the paper surface during laser cutting by a suitable choice of beam divergence and beam tilt. In particular, beam divergence and beam tilt to the paper surface can be adjusted so that the second opening against the surface-chennormale differently inclined edge surfaces is generated. Bevel result in a smoother transition between an arranged above the openings and covering the paper substrate, and thus, among other things to a lower susceptibility to contamination.

Different inclined edge surfaces also offer advantages in a mutual lamination of the opening films and minimize especially the potential for mutual lamination problem with Luf tein- circuit. Furthermore, the openings with inclined edge surfaces relative to the vertical edge surfaces at an additional optical effect, because they appear to vary in size depending on the viewing direction.

In an advantageous development of the invention, the security paper to a predetermined paper thickness and a thin section with reduced paper thickness, wherein at least the second through opening in the area of ​​the thin place is introduced. The thin place may in particular contain a watermark.

The two openings are expediently cherheitspapiers closed on at least one side of the Si with a foil element. In some designs, the openings are closed even on both sides with a foil. Here, potential problems of air entrapment can be minimized by the aforementioned sloped edges.

According to a further aspect of the invention, a generic security paper includes at least one through opening, the edge surface of the through hole first, sharply demarcated partial areas and second partial areas with characteristic has irregularities. switch first and second portions to each other along the outline of the opening is preferably from. In particular it can be provided that first and second sections alternate with each other along the contour of the opening in an irregular sequence.

In one configuration, first and second portions each extending through the entire thickness of paper. It can also be provided that first and second portions in a direction along the thickness of the security paper follow each other and complementary to the through hole to each other. For example, sharply demarcated partial areas can extend by 90% of the paper thickness, while the edge surface for the remaining 10% of the paper thickness is irregular in a peripheral portion. Such edge portions may also be combined with other edge portions in which first or second subregions extend completely through the entire thickness of paper.

Such a sequence of first and second subregions along the thickness of the security paper can be produced for example in that during the papermaking process, a through hole having characteristic irregularities is produced in the edge region, and modifies the edge region of the opening so produced after paper manufacture by cutting or punching and is characterized at least in partial areas sharply limited. The modification is preferably produced by laser cutting, where here too there are the above-mentioned possibilities of inclination of the edge surfaces.

The sequence of first and second subregions along the thickness of the security paper can be produced in that a paper piece with the desired shape of the opening broken, sharply defined cut lines in the security paper is defined, for example, too, and the paper piece thus defined then herausgeris from the security paper - sen, in particular blown out or is pulled out. The paper piece is preferably defined by laser cutting, which in turn pass the above-mentioned possibilities of inclination of the edge surfaces.

Another way to generate the sequence of first and second partial areas, is that a sharply defined thin place is formed with the shape of the desired opening in the security paper, and that torn the paper piece formed in the region of the thin place by the residual paper thickness of the security paper, in particular herausgebla- sen or is pulled out. Also the sharply delimited thin point is produced in a preferred procedure, by laser cutting, if desired, with inclined edge surfaces, as explained above.

In an expedient embodiment, the security paper has a certain paper upstream thickness and a thin area of ​​reduced paper thickness, for example, a watermark, wherein the through opening in the area of ​​the thin place is introduced.

The through hole is expedient closed on one or even on both sides of the security paper with a foil element.

In a further aspect of the invention, a generic security paper includes at least one through opening produced during papermaking, having characteristic irregularities in the edge region. The through hole is combined with a generated by laser engraving, which supplements the opening to a projection display. Preferably, the through hole is closed off on one or even on both sides of the security paper with a foil element. According to yet another aspect of the invention, a generic security paper includes an embedded foil element that is visible in certain areas by papermaking prepared panes. The security paper further comprises in the region of the film element has an opening produced by the papermaking by cutting or punching with a sharply delimited marginal area.

In an advantageous embodiment of the sharply delimited opening above and / or directly adjacent to the foil element is arranged. Preferably, the sharply delimited opening with the exception of a possible overlap region with the sheet member is continuous.

The window regions are arranged according to a preferred embodiment, on a first main surface of the security paper, while the sharply delimited opening of the opposite major surface of the security paper to the foil member extends.

In all embodiments, the film member may be a security element, especially a security thread or security band representing.

The sharply delimited opening is advantageously produced by laser cutting. The edge areas of the opening may be inclined, as explained above. In an expedient embodiment, the security paper a predetermined paper thickness and a paper thin section with reduced thickness, such as a watermark, with the sharply defined opening in the area of ​​the thin place is introduced. The sharply defined aperture is conveniently sealed on one or even on both sides of the security paper with a foil element. The invention also includes a document of value such as a banknote, an identity card, and the like, having a security paper of the type described. The security paper or value document according to the invention can be used for the forgery protection of goods of any kind.

Further exemplary embodiments and advantages of the invention will be explained below with reference to the figures, has been omitted in which a depiction to scale and proportion faithful reproduction in order to improve their clarity.

Show it:

Fig. Fertil 1 is a schematic diagram of a banknote of a security paper according to one embodiment of the inventions,

Fig. 2 is a plan view of a security paper according to another

Embodiment of the invention,

FIGS. 3 and 4, further embodiments of inventive configurations of two, standing in a sense connection openings in a security paper,

Fig. 5 to 7 respectively in (a) an intermediate step in the preparation of the security paper shown in (b) in plan view other

Embodiments of the invention,

FIG. 8 (a), an intermediate step in the manufacture of a security paper according to another embodiment of the invention, and (b) a section of (a) after the detachment of the cut-out shape,

Fig. 9 is a plan view of a security paper according to another embodiment of the invention,

FIG. 10 (a) is a plan view of a security paper having an embedded film element according to one embodiment of the invention, and in (b) and (c) are cross-sections through the security paper in (a) along the lines BB and CC,

FIGS. 11 and 12 respectively in (a) is a plan view of a security paper having a foil element according to further embodiments of the invention, and in (b) and (c) are cross-sections through the security paper in (a) along the lines BB and CC,

Fig. 13 is a design in which a laser-cut opening in the

Region of a thin spot produced with papermaking is produced,

FIG. 14 (a) and (b) in cross-section two steps in the manufacture of a security paper according to another embodiment of the invention, and in (c) is a plan view of the security paper in (b),

FIG. 15 (a) to (c) is an illustration as in Fig. 14, wherein the laser-cut opening in the region of a thin spot produced with papermaking is generated, and FIG. 16 m (a) un <i (J 0) two embodiments of laser-cut ne openings inclined to the surface normal edge surfaces.

The invention will now be explained in more detail using the example of a bank note. Fig. 1 shows this is a schematic representation of a banknote 10, which has two through openings 12 and 16 respectively. The first of the through holes 12 was thereby produced during the manufacture of the security paper used for the bank note 10 and has a fibrous, irregular edge region 14. Such edge 14 is characteristic of the produced already during sheet formation openings and can not be subsequently produced by punching or cutting of the paper.

The second through hole 16 was formed only after the paper-making by laser cutting or mithilf e of a punching tool and has a sharply defined edge region 18. The two through holes 12 and 16 are spatially separated from each other, the same information twice, in the embodiment of Fig. 1 respectively an isosceles triangle. It is understood that also more complex formatting may be used men instead of the triangle, whose outlines for example, represent a sequence of digits or a simple graphic.

Even if the information represented by the first opening 12 should not be immediately recognizable by their irregular edge region 14, the viewer may establish a relationship of the two forms by the trained with clear contours second opening 16 and unambiguously recognize the information. Through the two-time presentation of information in different garb the attention and the attention of the viewer are being drawn to the difference of the two openings. The high security against counterfeiting of the irregularly edged opening 12 is combined with the clear visibility of the sharp-edged opening sixteenth

The section of Fig. 2 shows a plan view of a security paper 20 according to a further embodiment of the invention. The security paper 20 includes a first papermaking generated opening 22 with an irregular edge portion 24 and a second, generated by laser cutting opening 26 with a sharp edge 28th Again, the contour shapes of the two openings 22 and 26 communicate with each other in a context of meaning. In contrast to the embodiment of Fig. 1, however, do not present the same information, but form complementary parts of a total information.

Preferably, the subject is shown to the various Randeigen- of the two openings adapted properties. For illustration, Fig. 2 shows a flower motif, wherein the flowering of the stems and the leaves are formed by the second, sharp edged opening 26 through the first opening 22 and irregularly edged. Since flowers in nature look very different and variable, the overall presentation is very realistic. Simultaneously, a high counterfeit protection is ensured through the use of the two opening shapes.

Figures 3 and 4 show further embodiments for designs in which are the contour shapes of an irregularly edged first opening and a second opening sharply edged together in a context.

The embodiment of Fig. 3 (a) shows a sun in the form of a circular, irregularly edged first opening 32 with radially outwardly pointing beams are formed by laser cut or punched triangular openings 34. The beams formed by the second openings 34 set in this embodiment, a dependent from the first opening design. Also, in Fig. 3 (b), the irregularly edged, star-shaped, first opening 36, a main subject is, of which the sharply edged, circular , second openings 38 depend graphically.

Fig. 4 shows a further embodiment of the invention in which the irregularly edged openings 42 and the sharp-edged openings 44 are complementary to the denomination "100" of a bill 40. As usual, the denomination of the banknote elsewhere is again clear readable applied, for example printed. in a real bank note only one of the configurations of Fig. 4 can be used or both may and optionally other shapes at different locations of the banknote can be provided.

A sense relationship between the two opening types can also be shown that the irregularly edged opening is modified by the sharply edged opening, as discussed now with reference to Figures 5 to 7th Fig. 5 (a) shows a plan view of a security paper 50, was introduced into the papermaking firstly a first, irregularly edged opening 52. The opening 52 is modified according to the paper making by laser cutting with two sharp edged openings 54, their positions in Fig. 5 (a) are shown in dashed lines.

After the laser cutting results in a single contiguous and continuous opening 56 which, as shown in Fig. 5 (b), due to the two-stage manufacture of a hand portions 58 having an irregular edge and on the other hand, has portions 59 with a sharp edge. By such modification, the edge characteristics of the two opening types can be combined into a single continuous opening.

In the embodiment of FIG. 6 an irregularly edged opening 62 in the form of a predetermined figure, for example in the form shown in Fig. 6 (a) vierpf piece figure shown in a security paper 60 is generated in paper manufacturing in a first step. The irregular edge portion 64 of this figure is then partially trimmed by a laser. As illustrated in Fig. 6 (b) concerns such a continuous Öff- voltage 66, on the one hand portions 68 having an irregular edge and on the other hand, has portions 69 with a sharp edge. The ratio and the sequence of the partial regions 68, 69 can be selected arbitrarily.

Fig. 7 shows a further exemplary embodiment, is introduced in which, as in the embodiment of FIG. 6, initially an irregularly edged opening 72 in a security paper 70 as shown in Fig. 7 (a). Following the papermaking, the opening 72 is completely recut with a laser (reference numeral 74), wherein the size of the regrooving 74 is chosen to be somewhat smaller than the size of the opening 72nd In this way, a through hole 76 having an irregular sequence of partial regions 78 having an irregular edge and portions 79 having a sharp edge, as shown (b) in Fig. 7.

A series of regular and irregular edge regions can also be obtained without the involvement of an opening produced already in papermaking. For example, the desired shape of a through hole 82 using a laser can be so cut out from a security paper 80 such that the cut lines 84 do not form a continuous curve of intersection, but are interrupted by non-cut portions 86, as in Fig. 8 (a). The cuts 86 form holding webs which prevent the release of the first cut-out shape.

The cut-out shape can then be blown out beam, for example with an air or be pulled out by means of vacuum. As illustrated in in Fig. 8 (b) shown in the detailed section 85, the cut piece of paper tearing in this procedure to the holding webs 86 into an irregular manner, while the cut lines 84 form sharp edges. The edge region of the opening 82 thus has a Dep ol ge irregular portions 88 and sharp cut portions 89, their relative size and sequence through the incision in the laser cutting can be chosen almost at will.

In the other, shown in Fig. 9 embodiment of the invention the security paper 90 has a through opening produced during papermaking 92 with an irregular, fibrous edge. The opening 92 is combined with engraved lines 94 which are produced by laser etching. The engraving lines 94 are formed by locally thinned regions in the security paper 90, such as in document WO 98/03348, the disclosure of which is incorporated in the present description. Position and arrangement of the engraving lines 94 according to the invention are chosen so that they complement the opening 92 to a projection display.

When viewed in reflected light, the engraved lines 94 are virtually undetectable, there determines the surface shape of the opening 92 appearance. When the security paper deals viewed in transmitted light, 94 contact the engraved lines due to lower paper thickness clearly and complement the area opening 92 to a three-dimensional projective onsdarstellung. The combination of the irregular opening 92 with the engraved lines 94 so resulting in an optically conspicuous interplay between 2D and 3D display.

According to another embodiment which is now described with reference to Figures 10 to 12 of the invention, the security paper with a film element, such as an embedded security thread, or one on one side covered foil strips provided.

Fig. 10 shows an example of a security paper 100, into which a film strip 102 is embedded. Here, FIG. 10 (a) is a plan view of the security paper is, Figures 10 (b) and 10 (c) show cross-sections through the security paper of Fig. 10 (a) along the lines BB and CC. The film strip 102 has been completely coated prior to its embedding in the security paper on the bottom side 104 with heat-seal lacquer 107th On the other side 106, however, only traces 108 have been provided at the film edge with heat sealing lacquer, so that the middle sheet region of the upper surface remains uncoated 106th

In paper manufacture, now a nonwoven fabric layer on both sides of the film. In addition, a window, for example by means of electric type, on the bottom side 104 of the foil strip cut out 110 in which the sheet member is visible. On the fully coated with heat seal coating 107 underside 104, the nonwoven fabric is up to the recessed Fens- ter 110 fixed in the dryer section. On the opposite front side 106, however, only the heat seal lacquer bespurten edge regions 108 in the dryer section are fixed. Subsequently, cut out a form 112 having a laser on the recessed window 110 of the opposite side 104, as best seen in the cross sectional view of FIG. 10 (c) to be recognized. The laser parameters are that only the paper, but not the film strip is cut overall 110 so selected. This can for example be achieved in that the laser cutting is performed with a laser wavelength for which the film strip 102 is transparent and non-absorbent.

The cut-out shape 112 can be removed with a suction device, then, since no connection of the cut piece of paper has come into being with the film due to lack of heat-sealing lacquer coating on the front side 106 and the anti-adhesive film surface.

Another embodiment having a foil element will now be explained with reference to FIGS 11 and 12. FIG. First, Fig. Ll (a) a plan view of a security paper 120. and Figures ll (b) and II (c) show cross-sections through the security paper of Fig. 11 (a) along the lines BB and C- C. In the security paper 120 is a security thread embedded 122, which mainly shows back in the produced with papermaking window portions 124 of the paper, as shown in Fig. ll (b).

Next is introduced from the front side of the security paper 120 with a laser forth a sharp-edged opening 126 in the paper substrate in the region of the window 124, which extends over the security thread 122 of time. For this purpose, the laser parameters are that although the paper substrate 120, but not the security thread 122 is cut by the laser chosen. In the area of ​​the opening 126 of the security thread 122 is then shown recognizable from both sides, as shown in Fig. Ll (c). In the embodiment shown in Fig. 12 alternative configuration, the laser-cut opening 128 in contrast to the embodiment of FIG's. 11, not going through the security thread 122, the security thread is framed rather from the opening 128. Except for this difference, the views of FIGS to (c) correspond to 12 (a) those of Figures ll (a) to (c).

Unlike Fig. 11, the surface of the security thread 122 is in the embodiment of FIG. 12 can be seen only in the window regions 124. Such a configuration can in particular be considered if the laser radiation may damage or foil material of the security thread 122 undesirably influence. Since the security thread oscillates normally, the opening 128 in this configuration may not be perfectly centered on the security thread 122 is typically, as indicated by the register variations shown in Fig. 12 (a) and (c).

Fig. 13 shows a configuration in which a laser, a sharp-edged opening is generated 132 in the region of thin section 134 of the security paper 130th The thin section 134 may be, for example, by a sucked-former ply (a paper layer generated by blasting of the pulp to a circular sieve) or by using generated electric types. Since the paper thickness in the range of thin section is reduced 134, can be used in laser cutting with lower laser power. Characterized higher cutting speeds can be achieved, so that more complex shapes can be realized. This modification can be combined with all the embodiments in which a laser, a sharp-edged opening is written in a paper substrate.

Further embodiments of the invention will now be explained with reference to FIGS. 14 and 15 In the embodiment of FIG. 14 is a thin area 142 is first generated a predetermined shape in the paper substrate 140 using a laser. The paper material is evaporated thereby, burned, or otherwise removed. It is precisely ablated as much material that even a small residual thickness of the substrate 144 remains, as shown in Fig. 14 (a). Depending on the thickness tolerance of the substrate, so far as can be removed in some places that no more material is present. Since the thin point is produced by laser cutting, the edge surface 146 is sharply defined and smooth.

The remaining after the laser treatment paper piece 144 is then removed by blowing out or sucking out. Since it is only a very thin layer of paper, the piece of paper 144 tears out at the edges, and thereby generates an irregular portion 148 in the peripheral surface of the now through opening 145, as shown in the cross-section of FIG. 14 (b) and plan view of FIG. 14 (c).

Following the edge area of ​​the opening 145 along a line extending through the paper thickness direction, starting with the surface 141 of the paper substrate, the well demarcated portion 146 and the irregularly shaped in cha- rakteristischer manner portion 148 follow one another. When viewing the security paper, the through hole 145 from the opposite sides of the security paper appears out with different impression, depending on whether the sharply delimited marginal area 146 or the irregular edge region 148 adjacent to the paper surface.

As an exemplary combination of laser-generated holes with thin spots in the paper substrate (Fig. 13) Figure 15 shows the embodiment of Fig. First, a papermaking produced in the security paper 150 thin spot 151, such as a watermark. In the area of ​​this thin spot 151, is then as described in conjunction with Fig. 14, generates a second sharp-edged thin area 152 with the laser, which can stand only a small residual thickness 154 of the paper substrate, as shown in Fig. 15 (a).

This remaining piece of paper 154 is pulled out by blowing or suction, so that an irregular peripheral surface 158 is formed on the underside of the paper substrate 150, as in Fig. 15 (b). The edge region produced by laser cutting, however, 156 is sharply limited. The resultant through-hole 160 is embedded in a watermark area 151 which occurs when viewed in transmitted light significantly in appearance, see Fig. 15 (c). It is understood that the shape of the opening 160 and the watermark area 151 may be associated in meaning with each other as well.

Overall, the edge surface of the opening 160 along a line extending through the paper thickness direction comprises successively a sharply defined portion 156 and an irregularly shaped portion in a characteristic manner 158th the through hole 160 is also developed when viewed from opposite sides of the security paper with a different impression, depending on whether the sharp limited

The edge region 156 or the irregular edge region 158 adjacent to the paper surface.

In the described embodiments, the sharply edged opening instead of a laser can also be produced by a punching tool. it is also not necessary that the edge surfaces of the laser-cut openings are parallel and perpendicular to the paper surface as shown in the figures for ease of illustration. Rather, it may provide the laser source and / or the paper diagonally in the cutting be advantageous, so that "flattened" edges are produced.

Fig. 16 shows, in (a) and (b) show two exemplary embodiments, which are sharply edged, laser-cut openings introduced into paper substrates 170,172 and 174. The slope of the edge surfaces 178 of the openings can be adjusted by selecting a suitable beam divergence and beam tilt as desired. The openings 172 and 174 are each covered with a film 176th As is immediately evident, the flattened edges result in a smoother transition between the film 176 and the paper substrate 170. Such edge forms the susceptibility to soiling of the openings is considerably reduced.

The design of Fig. 16 (b), wherein the edge surfaces have different inclinations gene has been found, moreover, at a (not shown) on both sides of the openings lamination with films to be particularly advantageous. Problems with the possible inclusion of air between the opposite films may be minimized by such a design rim.

Also, the openings have the Fig. 16 as a further advantage of an additional optical effect, since they appear to vary in size depending on the viewing direction.

Claims

P atentanspr ü che
1. A security paper for manufacturing security or value documents, such as bank notes, identity cards and the like, with at least two through holes, characterized in that a first of the through holes is generated during the manufacture of paper and having characteristic irregularities in the edge region, and a second of through openings produced by the paper making by cutting or punching with a sharply defined edge region.
2. A security paper according to claim 1, characterized in that the contour shapes of the first and second through-hole in a sense related.
3. A security paper according to claim 2, characterized in that constitute the contour shapes of the first and second through-hole related or complementary information.
4. A security paper according to claim 3, characterized in that the information representing a motif, characters or a code.
5. A security paper according to at least one of claims 1 to 4, characterized in that the second opening is evidence replaced by laser cutting.
6. A security paper according to at least one of claims 1 to 5, characterized in that the security paper having a predetermined paper thickness and a thin section with reduced paper thickness, said second through opening in the area of ​​the thin place is introduced.
7. A security paper according to claim 6, characterized in that the thin area comprises a watermark.
8. A security paper according to at least one of claims 1 to 7, by DA in that the second opening is formed with inclined to the surface normal edge surfaces.
9. A security paper according to claim 8, characterized in that the second opening edge surfaces of different inclination to the surface-having chennormale.
10. A security paper according to at least one of claims 1 to 9, characterized in that the two openings are closed on one or both sides of the security paper with a foil element.
having 11. A security paper for manufacturing security or value documents, such as bank notes, identity cards and the like, with at least one through opening, characterized in that the Randflä- surface of the through hole first, sharply demarcated partial areas and second partial regions having characteristic irregularities.
12. A security paper according to claim 11, characterized in that first and second sections alternate with each other along the contour of the opening.
13. A security paper according to claim 12, characterized in that first and second sections alternate with each other along the contour of the opening in an irregular sequence.
14. A security paper according to at least one of claims 11 to 13, characterized in that first and second portions each extending through the entire thickness of paper.
15. A security paper according to at least one of claims 11 to 14, characterized in that first and second portions in a direction along the thickness of the security paper follow each other and complementary to the through hole to each other.
16. A security paper according to at least one of claims 11 to 15, characterized in that the security paper having a predetermined paper thickness and a thin section with reduced paper thickness, the through opening in the area of ​​the thin place is introduced.
17. A security paper according to claim 16, characterized in that the thin place Asst a watermark UMF.
18. A security paper according to at least one of claims 11 to 17, characterized in that the first partial regions are generated by laser cutting.
19. A security paper according to at least one of claims 11 to 18, characterized in that the first partial regions are formed with inclined to the surface normal edge surfaces.
20. A security paper according to claim 19, characterized in that the first partial regions comprise edge surfaces of different inclination to the surface normal.
21. A security paper according to at least one of claims 11 to 20, characterized in that the through opening is closed on one or both sides of the security paper with a foil element.
22. A security paper for manufacturing security or value documents, such as bank notes, identity cards and the like, with at least one generated during the manufacture of paper through opening having characteristic irregularities in the edge region, characterized in that the through hole combined with a generated by laser engraving is that supplements the opening to a projection display.
23. A security paper according to claim 22, characterized in that the through opening is closed on one or both sides of the security paper with a foil element.
24. A security paper for manufacturing security or value documents, such as bank notes, identity cards and the like with a einge- embedded foil element that is visible in certain areas by papermaking prepared panes, characterized in that after paper manufacture the security paper in the area of ​​the film element by having cutting or punching opening produced with a sharply delimited marginal area.
25. A security paper according to claim 24, characterized in that the sharply delimited opening is above and / or directly adjacent to the foil member.
26. A security paper according to claim 24 or 25, characterized in that the sharply defined aperture, with the exception of a possible overlap region with the sheet member is continuous.
27. A security paper according to claim 24 or 25, characterized in that the window areas are disposed on a first main surface of the security paper and the sharply delimited opening of the opposite major surface of the security paper to the foil member extends.
28. A security paper according to at least one of claims 24 to 27, characterized in that the film element is a security element, especially a security thread or security band.
29. A security paper according to at least one of claims 24 to 28, characterized in that the sharply defined opening is produced by laser cutting.
30. A security paper according to at least one of claims 24 to 29, characterized in that the security paper having a predetermined paper thickness and a thin section with reduced paper thickness, with the sharply defined opening in the area of ​​the thin place is introduced.
31. A security paper according to claim 30, characterized in that the thin place Asst a watermark UMF.
32. A security paper according to at least one of claims 24 to 31, characterized in that the sharply delimited opening is formed with inclined to the surface normal edge surfaces.
33. A security paper according to claim 32, characterized in that the sharply defined aperture edge surfaces of different inclination to the surface normal has.
34. A security paper according to at least one of claims 24 to 33, characterized in that the sharply delimited opening is closed on one or both sides of the security paper with a foil element.
35. A method for manufacturing a security paper with at least two through holes, in particular according to one of claims 1 to 10, wherein
- during the papermaking process, a first through hole having characteristic irregularities is produced in the edge region, and
- is produced by paper making by cutting or punching a second through-hole with a sharply defined edge region.
36. A method according to claim 35, characterized in that in the
A security paper, a thin spot of reduced paper thickness is formed, and that the second through opening in the area of ​​the thin point is produced.
37. The method of claim 35 or 36, characterized in that the second opening is produced by laser cutting.
38. The method according to claim 37, characterized in that the beam divergence and beam tilt to the paper surface are set so that the second opening is formed with inclined to the surface normal edge surfaces.
39. The method of claim 37 or 38, characterized in that the beam divergence and beam tilt to the paper surface are set so that the second opening is generated against the surface normal differently inclined edge surfaces.
40. The method according to at least one of claims 35 to 39, characterized in that the two openings are closed on one or both sides of the security paper with a foil element.
having 41. A method for manufacturing a security paper with at least one through-opening, in particular according to one of claims 11 to 21, wherein the through hole with an edge surface is generated, the first demarcated partial areas and second partial regions having characteristic irregularities.
42. A method according to claim 41, characterized in that
- during the papermaking process, a through hole having characteristic irregularities is produced in the edge region, and
- the edge region of the opening produced by the papermaking modified by cutting or punching and is thereby at least limited sharply in some areas.
43. The method according to claim 42, characterized in that the modification is produced by laser cutting.
44. A method according to claim 41, characterized in that
- a piece of paper with the desired shape of the opening broken, sharply defined lines of intersection is defined in the security paper and
- is torn the paper piece from the security paper, in particular is blown out or drawn out.
45. A method according to claim 44, characterized in that the piece of paper is defined by laser cutting.
46. ​​A method according to claim 41, characterized, in that
- in the security paper a sharply defined thin place is formed with the shape of the desired opening, and
- is torn the paper piece formed in the region of the thin place by the residual paper thickness of the security paper, in particular is blown out or drawn out.
47. A method according to claim 46, characterized in that the sharply defined thin point is produced by laser cutting.
48. The method of claim 46 or 47, characterized in that the sharply defined thin spot is the area of ​​a thin spot produced with papermaking, such as a watermark, is generated.
49. The method of claim 43, 45 or 47, characterized in that the beam divergence and beam tilt to the paper surface are set such that the modification section line or thin area is formed with inclined to the surface normal edge surfaces.
50. The method of claim 43, 45 or 47, characterized in that the beam divergence and beam tilt to the paper surface are set such that the modification section line or thin area is generated against the surface normal differently inclined edge surfaces.
51. The method according to at least one of claims 41 to 50, characterized in that the through opening is sealed on one or on both sides of the security paper with a foil element.
52. A method for manufacturing a security paper with at least one through-openings, in particular according to one of claims 22 or 23, wherein
- during the papermaking process, a continuous opening with char- acteristic irregularities is produced in the edge region, and
- is introduced by laser etching an engraving in the security paper, which complements the through hole to a projection display.
In which, during the manufacture of paper, a sheet member is embedded in the security paper 53. A method for producing a security paper having an embedded foil element, in particular according to one of claims 24 to 34,
Window portions are generated in which the sheet member is visible, and
- after paper manufacture by cutting or punching in the area of ​​the film member an opening with a sharply delimited marginal area is generated.
54. The method according to claim 53, characterized in that the sharply defined opening is produced by laser cutting.
55. The method of claim 53 or 54, characterized in that a continuous, sharply defined opening is produced immediately adjacent to the foil member.
56. A method according to claim 54, characterized in that the sharply delimited opening overlaps the sheet member, wherein the Laserpa- parameters are adjusted so that the laser only the paper substrate, but not cut the sheet member.
57. The method according to at least one of claims 53 to 56, characterized in that the film element is coated prior to embedding on a first major surface over the entire surface with a heat sealing lacquer and is bespurt on a second, opposite major surface only at the film edge with heat sealing lacquer, so that the central region the film element remains uncoated.
58. A method according to claim 57, characterized in that the window areas are produced on the fully coated major surface.
59. The method of claim 57 or 58, characterized in that the sharply delimited opening in the central region of the coated only on the edge of main surface is generated.
60. The method according to at least one of claims 57 to 59, characterized in that the sharply defined opening is produced by laser cutting.
61. A method according to claim 60, characterized in that the beam divergence and beam tilt to the paper surface are adjusted so that the sharply delimited opening is formed with inclined to the surface normal edge surfaces.
62. The method of claim 60 or 61, characterized in that the beam divergence and beam tilt to the paper surface are adjusted so that the sharply defined orifice against the Oberflächennorma- Ie differently inclined edge surfaces is generated.
63. A method according to any one of claims 53 to 62, characterized in that the sharply defined opening is closed on one or both sides of the security paper with a foil element.
64. Use of a security paper according to at least one of claims 1 to 63 for the forgery protection of goods of any kind.
65. A document of value, such as bank note, identity card and the like, having a security paper according to at least one of claims 1 to 63rd
PCT/EP2006/004113 2005-05-12 2006-05-03 Security paper and a method for the production thereof WO2006119896A3 (en)

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CN101171145A (en) 2008-04-30 application
DE102005022018A1 (en) 2006-11-16 application
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EP1904311A2 (en) 2008-04-02 application
RU2408466C2 (en) 2011-01-10 grant
EP1904311B1 (en) 2011-08-17 grant
RU2007144576A (en) 2009-06-20 application
ES2368498T3 (en) 2011-11-17 grant
US20080216976A1 (en) 2008-09-11 application
CN101892612A (en) 2010-11-24 application
WO2006119896A3 (en) 2007-05-10 application
EP2143565A1 (en) 2010-01-13 application

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