KR101500816B1 - Data Carrier Having a Window - Google Patents

Abstract

The present invention relates to a foil element having a window 14 extending from the lower portion 16 of the data storage medium to the upper end 18 and a safety element 22 covering the window 14 on the upper end 18 of the data storage medium. In particular a valuable or assurance document, wherein a portion of the safety element 22 is placed on the window 14 and a portion of the safety element 22 Lt; / RTI > Here, according to the present invention, the portion of the safety element 22 lying over the window 14 represents the radiation deformation area 24 in the register with the window 14, and where the visual appearance of the safety element 22 is the electromagnetic radiation Is provided.

Description

[0001] The present invention relates to a data carrier having a window,

The present invention relates to a data carrier, in particular a value or security document, which has a window extending from the bottom to the top of the data storage medium, Wherein a portion of the safety element rests on the window and a portion of the safety element rests on the side of the window.

For protection, security or valuable documents, such as banknotes, identification cards, etc., often provide a security element that serves as a safeguard against piracy while allowing the authenticity of the document to be verified. Here, see-through windows, such as see-through windows, are getting more and more attractive. Here, for window fabrication, a foil with an adhesive layer on one side is applied to the banknote, for example, to prevent a pre-formed opening in the banknote.

Here, the application of the foil to the banknote is subject to unavoidable registration tolerances, and the safety element of the foil, which is specifically coordinated with the opening, can not be perfectly aligned with the opening. Matching errors must be considered in the design of the safety factor, which limits freedom in design creation.

From this, it is an object of the present invention to further develop a data storage medium of the kind mentioned above, and in particular to facilitate the application of safety elements with a design that is highly precisely matched to the window, , Which combines high forgery security with an attractive visual appearance.

This object is solved by a data storage medium characterized by the main claim of the present invention. Methods for manufacturing such data storage media are specified in the independent claims. Advancement of the invention is a gist of the dependent claims.

According to the present invention, in a general data storage medium, a safety modification is performed in which the visual appearance of the safety element is deformed by the action of electromagnetic radiation Is provided.

Here, the present invention permits a registration error between the safety element of the applied foil element and the window of the data storage medium, but it also provides a visual effect of the safety element in the deformation area matched with the window through the action of radiation, in particular laser impingement It is based on the idea of transforming the appearance. Next, the conformal deformation between the foil element and the window disappears almost or completely in the background at the time of observation, and instead, the perfect match between the window and the deformation area becomes the most important optical impression for the observer.

Due to the precise alignment of the window and the deformation areas with respect to each other, the two elements can also cooperate or be related to each other in their visual appearance and / or their information content. For example, the window and the deformation area may describe the same motif, or only each of the motif parts that complement each other to form a complete motif. Such visual or content-related interactions are, on the one hand, as well as on the other hand, because the production of windows and deformation areas, which are related safety features in terms of content, constitute a higher technical barrier than the production of two safety features, Increases the attention and awareness of security and, on the other hand, promotes enhanced falsification safety.

The window of the data storage medium may be formed by an opening extending from the bottom to the top of the data storage medium. The window may also be formed by a transparent region of the data storage medium that allows visual inspection through the naked eye, such as an unprinted area of the polymer banknote. In a multi-layered data storage medium, the window may also be formed by a combination of a transparent area in the first data storage medium ply and an opening in the second data storage medium ply, for example, It is the combination of the ink absorption layer which is not transparent.

In an advantageous variant of the invention, the safety element represents a metal layer which is demineralized in the region of radiant deformation. It is understood here that the demetallization is a transition of the metal layer to an ablation or a transparent deformation. The metal layer can be completely demetallized, in other words it is completely removed or completely converted to a transparent deformation, or it is also only partly demetallized and still remains translucent, in particular between 20% and 80% Thereby forming a translucent deformation region having a transmittance. As will be described in more detail below, in the region of the opening, the metal layer can be demineralized only in a small number of areas so that the radially deformed region inside of the opening region produces a sub-pattern fully matched to the opening.

The safety element particularly includes a metallized diffraction line, a metallized diffraction line, a metallized matte pattern or a thin film element typically composed of a metallic refractive layer, a dielectric spacing layer and an absorber layer. In addition, other safety elements having a metallized structure such as a metallized concave micro-reflective surface can be considered.

In an advantageous variant of the invention, the safety element represents first and second fragment regions which interact differently in the electromagnetic path, the first and second fragment regions being partly located on the window and partially Is next to the window. Here, other interactions can be placed to different degrees or also different kinds of interactions.

For example, a different degree of interaction in the metallized safety element may be achieved only by the demetallization of only the first fragment region, the color change only in the first fragment region, Can result in strong color change of the first fragment region. For other degrees of interaction, both fragment regions basically react in the same way, but one fragment region becomes larger to a lesser degree than others that react less or not at all.

With other types of interactions, in contrast, both fragment regions respond to the action of radiation, but in a different way. For example, the colorless area of the copy-safe color element may change from red in the first fragment region to blue in the second fragment region. Also in this way, other visual appearances can be reached in the deformation area.

In an advantageous embodiment, the radiation-deformed region comprises only the first fragment region, not the second fragment region, such that the second fragment region exhibits the same visual appearance on and next to the window.

To achieve a different degree of interaction, in a preferred embodiment, at least one of the two segment regions is an interference pattern in the form of a grating pattern defined by the grating constant and direction of the grating line, preferably an relief pattern ). The second segmented region is a first segmented region of the first segmented region having a first grating constant of the grating line of the first segmented region or a second grating constant of the grating line of the second segmented region that is different from the first direction and / And may include a positive or non-positive pattern in the form of a grating pattern defined by a constant and a second direction. The grating pattern of the second segmental region may also indicate the same grating constant and direction of the grating line as the grating pattern of the first segmental region, but it is also possible that a predetermined angle, e.g., a grating pattern, It can be inclined at an angle arranged on the side.

Material abrasion occurs as an aid to the grating pattern and exhibits increased absorbance. The increased light absorption can be physically explained by resonance excitation (surface plasmon polarity or cavity resonance) in the metal. To this end, the grating constant is chosen for convenience such that it is at a level of intensity of the wavelength of the laser beam used for the radiation deformation. The absorbance resonating in the grating is furthermore strongly dependent on the cross-sectional profile and on the surrounding material as well as on the grating material. The profile is thus conveniently adapted to the laser wavelength used to achieve high absorbance. For example, a grating with different trench depths to the side exhibits different absorptivity planes laterally. In an advantageous embodiment, the first segmental region comprises a grating pattern with a high absorbance, possibly as high as possible, and the second segmental region is formed without a grating pattern. The incident laser radiation then leads to incident and polarizing angles, for co-operating wavelengths, for demetallization of the grating region.

In particular, the second direction of the grating line may be substantially perpendicular to the first direction to achieve another interaction of the fragment region with linearly polarized electromagnetic radiation. In a preferred embodiment, the two segment regions have a grating constant of 750 to 1,050 nm, preferably about 900 nm, and exhibit a grating pattern with different directions of the grating lines.

A further possibility for creating different interactions for the two fragment regions filled with the grating pattern consists of the use of a grating pattern having different grating profiles for the first and second fragment regions. Particularly preferred is a variant of the invention in which the two fragment regions act on different degrees to polarized laser radiation, since this makes it possible to achieve a clear difference in the degree of interaction. In the development of the present invention, two fragment regions are defined to be formed from nested sub-regions. This sub-region consists in particular of parallel strips, preferably strips having a strip width between 10 μm and 500 μm.

In an additional embodiment having a fragment region that interacts differently, the first fragment region comprises a surface-expanded bony pattern having a surface-expanded bony pattern, preferably a surface shape that changes into an interacting sinusoidal pattern. The surface morphology can be represented by, for example, a height of 200 to 400 nm, preferably a height of about 300 nm, and a grating constant of 200 to 400 nm, preferably about 300 nm, respectively, in the x- and y-directions.

Further details on the selective removal of one or more of the fragment regions of just two by illegal copying are described in detail in WO 2006/079489 A1, the disclosures of which are incorporated herein by reference.

In a further possibility to create differently interacting fragment regions, the first and second fragment regions are formed by the rising and falling portions of the embossing pattern. To this end, in particular,

The support is provided in an embossing pattern having a rising portion and a falling portion forming first and second regions having different first and second level heights and the second region of the embossing pattern is formed in the form of a desired pattern Being,

The embossing pattern is metallized adjacent to the first and second regions, and

The metallized embossing pattern being invaded by radiation which selectively removes metallization in the second area of the embossing pattern by the action of radiation.

Illegal copying can occur especially with laser radiation.

Here, after the metallization step, a laser beam absorption and / or laser beam reflective cover layer filling the lower portion of the embossing pattern is preferably applied to the metallized embossing pattern. In the selection of the cover layer, it is of primary importance that the laser radiation is hardly transmitted into the area of the falling portion. The laser beam reflective cover layer may thus exhibit the same or even better effect as the laser beam absorbing cover layer. After application, the cover layer is removed from the raised area of the metallized embossing pattern, and is removed with a roller or wiper, in particular. Here, technically inevitably, a thin toning film of the cover layer may remain on the raised area of the metallized embossing pattern. Such a cover layer can advantageously be used as an ink layer to contain a laser beam absorbing or laser beam reflecting pigment or dye, and in this case to create a design that can be observed from below as desired. A more detailed description and variations of the patterning method for the base of the metallized embossing pattern with the rising and falling portions are given in detail in the patent application PCT / EP2009 / 00882, the disclosures of which are incorporated herein by reference .

The present invention relates to a micro-optical moiré magnification arrangement, a micro-optical moiré-type magnification arrangement and, in particular, the techniques described in international patent applications WO 2009/00528 A1 and WO 2006/087138 A1, the disclosures of which are incorporated herein by reference The more common modules can be used particularly useful in micro-optical descriptive arrangements such as enlarged arrangements. All these micro-optical magnification arrays contain micro-patterns and motif images that reconstruct a particular target image when viewed with an appropriately cooperating observation grid.

As described in more detail in the above-mentioned publications and patent applications, it is possible to generate a large number of visually attractive magnifying and moving effects that result in a high re-recognition value of the safety factor created here and a high counterfeiting safety. For example, the grating parameters of the motif image and the observation grid are such that when the description arrangement is tilted, the first motive, as intuitively expected, has a straight parallax effect of moving vertically and not parallel to the oblique direction Can cooperate in a way that results in

Here, in a modification of the present invention, it may be provided that the safety element has a line width between about 1 [mu] m and about 10 [mu] m and its visual appearance includes a micropattern which changes in the radiation deformation area. Here, the micro pattern advantageously forms a motif image that is divided into a plurality of cells in which the image areas of at least specified target images are arranged at least inside or at least outside of the radiation deformation area. Here, the lateral dimension of the imaged region is preferably between about 5 탆 and about 50 탆, in particular between about 10 탆 and about 35 탆.

Moreover, an observation grid consisting of a plurality of observation grid elements is preferably provided for reconstructing a specified target image when the motif image is viewed as an aid to the observation grid, and the lateral dimension of the observation grid element is advantageously about 5 Mu] m to about 50 [mu] m, especially between about 10 [mu] m and about 35 [mu] m.

The change in the radiation deformation area can be constituted, for example, in the selective demetallization of the metal layer which makes the micropattern of the motif image recognizable. In another variation, the micropattern can be colored and the hue of the micropattern is changed in the radiation deformation area. Here, through the action of radiation, in particular, the first color can be transformed into the second color. One of the two colors can also be transparent, in particular the first color can be decolorized by the action of radiation and thus become transparent, or the transparent area can be dyed through the action of radiation, .

In an advantageous embodiment, the micropatterns inside and outside the radiant deformation region each depict a different motif, in particular a different pattern, character or code. Next, a change between different patterns, letters or codes occurs with an aligned perfect alignment with the cut edge of the window.

To this end, the micropattern is advantageously present in a two-layer lacquer system with substantially the same refractive index. Here, the second motive image is embossed in the lower rocker layer and the first motive image in the upper rocker layer is arranged on the lower rocker layer. In the radiation deformation area, the upper locker layer is removed so that the second motive image of the lower locker layer and the first motive image of the upper locker layer outside the radiation deformation area are visually recognizable.

In another variant of the invention, the following is provided:
The safety element comprises a multi-reflective first micro-imaging element arranged on the surface of the observation element pattern, and a transmissive second micro-imaging element arranged on the surface of the observation element pattern,
The first micro-imaging element is located inside the radiation deformation area and the second micro-imaging element is outside,
The safety element comprises a micro-pattern object having a plurality of micro-patterns arranged in a pattern of microstructures combined with the observation element pattern, such that the micro-pattern object is magnified and imaged on the front surface of the top by the first micro- Further comprising:

The target planar area lying outside the safety element is assigned to the second micro-imaging element such that the micro pattern of the micro pattern object can not be perceived from below when viewed by the second micro-imaging element, but for verification, The additional micro pattern object having the pattern is located in the object plane area such that the additional micro pattern object is magnified and imaged by the second micro-imaging element to the front surface of the top.

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Here, in particular, the first micro-imaging element is formed by a concave micro-reflector and / or the second micro-imaging element is formed by a microlens. More details and advantages of this combination of microlenses and concave micro-reflectors can be found in German patent application DE 10 2009 022 612.5, the disclosures of which are incorporated herein by reference.

According to the invention, the shape of the window is not subject to any restrictions. In all embodiments, it may be formed in the form of a pattern or a letter or code, in particular. If the window is formed by an opening or if the window comprises an opening, then the screened opening can also be used particularly advantageously as described in German Patent Application DE 10 2009 011 424.6, the disclosure of which is incorporated herein by reference Lt; / RTI > If the openings are formed by a line grid consisting of a plurality of parallel cutting lines, the above-mentioned matching effect is particularly evident because of the large number of transitions from support to openings.

In the present description, and as is clear from the embodiment, when the opening can be composed of a plurality of parts and can be referred to as a group of a plurality of openings, it is generally referred to as an opening.

Alternatively or additionally to the window, the radiation deformation area is also advantageously formed in the form of a pattern or in the form of a character or code. The patterns, characters or codes of the radiation modifying regions and windows are particularly advantageously equal or related to one another, for example complementary to each other to form a complete motif.

In a preferred development, the foil element is applied to the top of a data storage medium having a laser-ablatable adhesive layer, and the laser-ablatable adhesive layer is specified to be removed in the region of the window. In this manner, a particularly clear visual appearance can be achieved in windows.

The invention also includes a method of fabricating a data storage medium having the following method steps:

a) providing a foil element having a data storage medium substrate and a safety element having a window extending from the bottom to the top of the data storage medium substrate,

b) covering the window on top of the data storage medium substrate with a foil element in such a way that a portion of the safety element is on the window and a portion of the safety element is on the side of the window;

c) pricing the safety element with electromagnetic radiation from the bottom of the data storage medium substrate and through the window to modify the visual appearance of the safety element in the radiation deformation area lying on the window.

Here, in step c), the safety factor is preferably priced with laser radiation, in particular UV boxers, visible light radiation or near-infrared radiation at wavelengths up to 1.5 탆.

In step b), the foil element is applied to the top of the data storage medium, advantageously by laser-ablatable adhesion, and the adhesion present in the area of the window is removed in step c) by laser piracy.

If the window is formed by an aperture or if the window comprises an aperture then then in step a) the aperture is preferably at a wavelength of about 10.6 占 퐉, preferably by laser cutting with a cutting laser or by punching Into the data storage medium ply or into the data storage medium substrate.

In creating the openings, the peripheral areas or edges of the openings on the lower portion of the data storage medium substrate or data storage medium ply may also be provided through a matching effect to integrate openings on both sides of the data storage medium or data storage medium ply. Dyed or modified. To this end, preferably,

The data storage medium substrate or data storage medium ply has at least a laser-deformable marking substrate near the opening to be produced,

The opening is introduced into the data storage medium substrate or the data storage medium platen by the action of laser radiation, and

The laser-deformable marking substrate is deformed in the vicinity of the opening by the action of laser radiation.

Here, the marking substrate can be deformed only in the edge region of the opening immediately adjacent to the opening, so that the laser-deformation region can also exhibit a certain small distance from the opening. Preferably, the laser deformable marking substrate is itself deformed by the cutting laser beam when an opening is created in the data storage medium substrate. Here, this fact is used for an advantage enough to simultaneously deform the marking substrate arranged in the edge region or near the opening where the laser energy is cut off in the outer region of the profile of the cutting laser beam, with the laser cutting process. In this manner, perfect matching of the openings and the laser-deformed edge regions or vicinities is automatically ensured.

Alternatively or additionally, in the same operation, through the laser module, on the one hand the openings can be introduced into the support with higher laser energy, and on the other hand the laser-deformable marking substrate has lower laser energy In the vicinity of the opening. Since both steps are performed in the same operation, highly accurate matching (less than or equal to 0.4 mm, in particular less than or equal to 0.2 mm, or even less than or equal to 0.1 mm) of the aperture and laser degenerated neighborhood is achieved.

A more detailed description and advantages of such a method can be found in publication WO 2009/003587 Al, the disclosures of which are incorporated herein by reference.

The data storage medium is particularly valuable, such as banknotes, especially paper banknotes, polymer banknotes, or identity cards such as foil compound banknotes, credit cards, bank cards, cash cards, authorization cards, personal identity cards, It can be a document.

Further exemplary embodiments and advantages of the present invention will be described in detail below with reference to the drawings, wherein a description of sizes and ratios in the drawings is provided to enhance their clarity. Other exemplary embodiments are not limited to use in the specifically described forms, and may also be combined with one another.

1 is a schematic diagram of a banknote according to an exemplary embodiment of the present invention,
Fig. 2 is a cross-sectional view of the bank note along the line II-II in Fig. 1,
Fig. 3 shows examples of the visual and content-based interactions between the opening and the hologram and the manufacturing sequence with (a) to (c)
Fig. 4 (a) is a sectional view of the safety bills according to the present invention, and Figs. 4 (b) and (c) are top plan views of the safety bills in the area of the hologram or opening,
Figure 5 shows an intermediate step in the production of the safety bills according to the invention, wherein (a) is a top view of the safety element applied, (b) is a top view of the safety bills before the application of the safety element, and c) and d) show the closed safety bills in a plan view and a cross-sectional view,
6 shows an intermediate step in the manufacture of an additional safety deposit according to the invention, shown in (a) and (b)
7 is a plan view of a safe banknote according to an exemplary embodiment of the present invention,
Figure 8 is a bottom view of a safe banknote according to a further exemplary embodiment of the present invention,
9 is a cross-sectional view of a micro-optical description arrangement according to an exemplary embodiment of the present invention,
10 is a moire enlarged arrangement with micro-motive elements of the other color impression inside and outside of the opening,
Fig. 11 is a micro-optical description arrangement according to the present invention in which the change in the depicted motif image occurs at the edge of the aperture, in a cross-sectional view in (a) and in a plan view in (b)
Figures 12 and 13 show two exemplary embodiments of the present invention formed on the basis of a combination of a microlens and a concave micro-reflector.

The present invention will be described below using an example of a banknote. 1 and 2 are a top view and a cross sectional view showing a banknote 10 provided with a window in the form of an opening 14 extending from the lower portion 16 of the banknote banknote 12 to the upper end 18 thereof Lt; / RTI > On the top 18 of the banknote banknote 12, the opening 14 is covered with a foil strip 20.

Although the present invention will be described below using an example of an opening in a banknote, the present invention is not limited to such an embodiment. Moreover, the window of the data storage medium may also be formed by a transparent region of the data storage medium which enables a visual through view, such as a semitransparent window of polymer banknotes. In a multi-ply data storage medium, the window may also include an opening in the second data storage medium ply and a transparent area in the first data storage medium ply, such as, for example, a completely non-transparent ink absorbing layer of paper- As shown in FIG.

1 and 2, the foil strip 20 includes a safety element in the form of a metallized hologram 22 partially overlying and partially lying on the opening 14. To this end, the hologram 22 typically represents an area larger than the opening 14, and as shown in Figures 1 and 2, the foil strip 20 is formed such that the hologram 22 completely covers the opening 14 And is also applied to the banknote banknote 12 in such a manner as to overlap an area in contact with the opening 14. [

In the exemplary embodiment, the portion of the hologram 22 lying on the opening 14 is such that the visual appearance of the hologram 22 is deformed by the action of laser radiation and is perfectly matched to the opening 14 in accordance with the present invention Laser deformation area 24 is formed.

As will be explained below with reference to some specific exemplary embodiments, this is accomplished by aligning the shape or contour of the opening 14 with the motif depicted by the holograms 22, 24 without a matching change, Making it possible to create a visual or content-based interaction between the opening 14 and the hologram motif 22. In this way both the attention and re-recognition of the holograms 22 and 24 and the forgery safety of both, because both elements, the full alignment of the opening 14 and the laser deformation area 24, are present with a high barrier to potential counterfeiters .

A first example of the visual and content-based interaction between the opening and the hologram and the manufacturing sequence is described with reference to the plan view in Fig.

3A, first, the foil strip 30 is provided with a metallized hologram, for example, having a mountain chain 34 and a sky 36, shown schematically only in the figure, For example, a true-color hologram 32 is provided that includes a motif. Furthermore, as shown in Fig. 3B, the multi-part opening 42, which depicts a line having a concentric light like a motive, is introduced into the security paper 40 by laser cutting. It is also possible to introduce a simpler shape to the security paper by punching instead of laser cutting.

The foil element 30 with the hologram 32 is applied to the top 47 of the security guard 40 so that the opening 42 is located within the area of the sky 36 of the hologram 32. The foil element 30 is then priced from the bottom of the security paper 40 through the opening 42 with a laser radiation, for example with a pulsed Nd: YAG laser at 1.064 탆, and in this way, The metal layer of the metal layer 32 is demetallized in the region on the opening 42.

The demetallized area of the hologram then forms a laser deformation area 38 where the visual appearance of the hologram 32 is deformed, as shown in Fig. 3C. Since the opening 42 serves as a mask when demolding the hologram 32, the laser deformation area 38 is perfectly matched with the cut edge of the opening 42.

When the foil element 30 is applied to the security paper 40, an unavoidable registration error is taken by the sky 36 motive portion of the hologram 32 - not sensible to the observer - 42 and the laser deformation area 38. [0043] In this way, the laser deformation area 38 and the opening part 42 can cooperate with each other in the design without considering the registration error. In the exemplary embodiment in Fig. 3, the laser deformation area 38 is formed in the region of the opening 42 (for example, in terms of content describing the same motif (the sun with a comb) It cooperates. In the context of the present invention, more complex interactions can also be generated as will be described in more detail below.

In one development, a dye or a characteristic substrate may be provided around the expected laser deformation area 38 to vary the visual impression of the laser deformation area 38 as desired. For example, the surrounding area of the expected laser deformation area 38 of the hologram 22 may be provided with an optically variable layer such as a color-transition liquid crystal layer. After application to the security paper and demineralization in area 38, the opening 42 then shows light when viewed through, while the optically variable effect of the liquid crystal layer is such that the security paper 40 is placed on a dark background When it is clearly noticeable. Here, the desired color impression of the liquid crystal layer can be set, for example, through the choice of the liquid crystal material and the thickness of the optically variable layer.

Fig. 4 illustrates another development of the exemplary embodiment in Fig. 3, wherein through the matching effect, the openings 42 are integrated on both sides of the security paper 40 as well as on one side. 4A shows a cross-sectional view through the security paper 40, and Figs. 4B and 4C show plan views of the top and bottom of the security paper 40 in the area of the hologram or opening.

To provide a matching effect on both sides of the security paper, prior to cutting the opening 42, the security paper 40 changes from transparent to red through the action of CO ₂ laser radiation at a variable color, e.g., 10.6 탆 But is provided in the peripheral region 44 of the opening where a laser-deformable marking substrate is generated which is unchanged by laser radiation at 1.064 占 퐉 or 532 nm.

If the opening 42 is cut into the security paper 40 from the lower portion 46 with a CO ₂ cutting laser then the transparent to red marking substrate of the laser beam due to the Gaussian beam profile The critical energy for deformation is further exceeded in the edge region 48 of the opening 42. Thus, in this manner, an opening 42 having an edge region 48 of circumferential red on the lower portion 46 of the security paper 40 is created.

In order to complete the design 50 of the lower portion 46, the security paper 40 is not the critical energy required for the cutting, but only the threshold for color deformation is exceeded, to (46) CO ₂ laser radiation of a lower energy laser to be formed on it may optionally be additionally price. Since the cut of the opening 42 and the coloring of the colored and non-cut areas 52 of the edge area 48 are performed with the same cutting laser beam in the same operation or the same operation, the colored areas 48, 52 and The openings 42 are fully mated with each other as shown in Fig. 4C. For a more detailed description of the laser-deformable marking substrate that can be used for such a development and for additional variants of the coloration of the peripheral region or border of the opening, see WO 2009/003587, the disclosure of which is incorporated herein by reference. It can be found in A1.

After application of the foil element 30 in Fig. 3a to the security paper 40 in Fig. 4a and de-metallization of the hologram in the laser deformation area 38, the visual appearance shown in Fig. 4b, which corresponds to the appearance in Fig. An appearance is formed on the upper end of the security paper 40. The design 50 of the lower portion 46 is such that the marking substrate of the region 44 does not respond to the radiation of the Nd: YAG laser used for demetalization, or energy, more specifically exposure (energy per unit area) Lt; / RTI > is not sufficient for the reaction and therefore does not change in the demetallation. The latter applies particularly when heat-reactive dyes are used.

Along therewith, the finished security paper has an opening 42 which is integrated from top to bottom into a complete picture (a landscape with a harmful landscape and spokes) on both sides through the visual appearance shown in Figures 4b and 4c, .

The radiation deformation area of the safety element can cover the entire area of the opening as in the further described exemplary embodiment. However, the radiation deformation area may also be present only in some area of the opening, and thus form a sub-pattern inside the opening. For example, the following procedure may be used to form such a radiation-deformed region that is perfectly aligned with the opening and has a sub-pattern:

5, the foil element 60 is first secured to the first and second segment regions 64 and 66 by a safety element 62 (see Fig. 5) in which the first and second segment regions 64 and 66 appear and interact to a different degree than the electromagnetic radiation used for deformation Is provided. To this end, the fragment regions 64 and 66 are arranged such that, for example, their grating lines are rotated and rotated 90 relative to each other as shown in FIG. 5A through another cross hatching of the fragment regions 64 and 66 and may be filled with an oriented metallized grating pattern. Here, the shape of the segment regions 64, 66 forms the desired motif, for example the string "PL " as depicted in Fig. 5A.

Next, the foil element 60 is applied to a security paper 70 having an opening 72 (Fig. 5B), and secured via a linearly polarized laser radiation opening 72 of an Nd: YAG laser (70).

If the plane of polarization of the laser radiation is properly oriented, the laser radiation is more strongly absorbed by the segment region 64 than by the segment region 66, so that the energy or power of the laser radiation is & While this is sufficient to demarn metallize the layer 64, it has no effect on the demetallization in the very weakly absorbing fragment region 66. In this way, in the region of the opening 72, only the fragment region 64 is selectively demetallized.

Since the opening 72 serves as a mask for the demetallization of the region, the laser deformation region 74 formed by the demetallized region of the safety element 62 is perfectly aligned with the cut edge of the opening 72 Lt; / RTI > The region 66 that has not been demineralized by laser radiation continues without any offset into the region of the opening 72 from outside the opening 72 as depicted in plan view in Figure 5c and in cross section in Figure 5d .

In an advantageous embodiment, the other interaction of the fragment regions 64, 66 is accomplished through gratings that are differentially profiled into one fragment region with high absorption and another region that is not demetallized with low absorption . This corresponds to the embodiment shown in Fig. A particularly high absorption contrast between these fragment regions is achieved when surface plasmon polarity (SPs) is excited in one grating fragment region and the other fragment region does not allow such resonance excitation. Polarized laser radiation at a certain wavelength at a certain angle of incidence is preferably suitable as a beam source. SPs results in total absorption of the incident TM polarity light (E-vector is perpendicular to the grating line). For a highly transparent metallic grating, the TE polarized light (E-vector is parallel to the grating line) is hardly absorbed. In this manner, absorption contrast greater than 10, which is > 100 in the infrared region, can be achieved through gratings with segment regions oriented differently at 90 degrees. Not only noble metals Au, Ag, Pt, but also Al, Cr and Ni are particularly suitable for demetallization.

For example, orthogonal reflective gratings with TM polarization as a function of a period of 1 占 퐉 and a trench width of 0.6 占 퐉, incident radiation of 1,064 nm wavelength, incident angle of 1 占 and trench depth are deposited on metals Au, Al, Ag and Cu Exhibits a maximum absorbance reaching a maximum absorbance of 100% at a trench depth of about 110 nm for Ag and Cu, for example.

Since the position of SPs in the wavelength spectrum depends not only on the grating period but also on the grating profile and the optical constant, the absorbance difference can also be achieved in the fractional region where these variables of the grating vary. Moreover, it is possible to achieve a lower absorption of the TM polarized light and a higher absorption of the TM polarized light through a suitable design of the grating profile. Here, the absorption of the TM polarized light is based on a resonance effect which is particularly enhanced at a deep grating pattern (trench depth> period / 2).

In addition, other interactions of fragment regions 64 and 66 may still be achieved in other ways, for example, through different surface-enlarging relief patterns. In this case, the selectivity is based on the fact that, when the metal layer is vapor-deposited on a differently coarse bump pattern, a much thinner metal layer is obtained as the bump pattern is formed more coarser. In addition, for more coarse patterning, incident laser radiation is more often reflected, and thus consumes more energy for metallization. The aspect ratio is the key here. The greater the aspect ratio, the better the demetallization can be performed.

Thus, to facilitate selective demetallization of only the fragment region 64, fragment regions 64 and 66 having a rough embossing pattern (fragment region 64) and a fine embossing pattern (fragment region 66) . Moreover, details of the selective removal of just one or more of the fragment regions are described in publication WO 2006/079489 Al, the disclosure of which is incorporated herein by reference in its entirety.

An additional possibility for creating a differently interacting fragment region in the safety element is based on the use of a metallized embossing pattern with systematically introduced raised and lowered portions. 6 illustrates an exemplary embodiment in which the foil element 90 is applied by a hot-melt bonding agent 84 to a security paper 80 having an opening 82 therein. The foil element 90 comprises a support foil 92 provided on one side with a UV cured embossing locker layer 94.

An embossing pattern having a raised portion 96 and a lowered portion 98 is embossed in the embossing locker layer 94. Here, the terms rising and falling portions refer to the surface of the support foil 92, so that when viewed from the surface of the support foil 92, the elements that are shown downward in Fig. 6A constitute a rising portion, ).

In an exemplary embodiment, the raised portion 96 additionally exhibits a micro-relief pattern in the form of a desired hologram. The entire embossing pattern with the raised portion 96 and the lowered portion 98 is also provided with a metal layer 100 made of, for example, aluminum, which also forms a hologram metallization for the micro-embossed pattern of the raised portion 96 .

The metallized embossing pattern is further applied close to the laser beam absorbing and / or laser beam reflective locker 102 filling the lowered portion 98 of the embossing pattern. The locker 102 may be, for example, a high-temperature safety UV locker in which an infrared absorber having a maximum absorbance in near infrared rays is dispersed. After this application, the applied locker is removed from the surface of the embossing pattern, removed with a roller or wiper, and a thin toning film that is technically inevitable remains normally on the rising portion 96 of the embossing pattern. In addition, in this manner, a metallized embossing pattern with the applied lacquer 102 completely filling the lowered portion 98 of the embossing pattern and remaining on the raised portion 96 with a thin toning film is shown in Figure 6A As shown in Fig.

After application to the security paper 80, the foil element 90 is secured to the security paper 80 through the opening 82 by laser radiation, for example, by radiation from a Nd: YAG laser, as indicated by arrow 86 in FIG. ). ≪ / RTI >

Through the action of the laser radiation 86 on the metal layer 100 applied with the locker, the raised area 96 is demetallized, while the metallization is preserved in the lowered area 98. Particularly, due to the laser-absorbing and / or laser beam reflecting portions in the locker 102, insufficient laser power reaches the metal layer 100 in the lowered portion 98, thereby triggering the demetallization therein . In contrast, the metallization of the raised portion 96, applied by only the thinner toning film, receives a high energy input and is demetallized. The thinner film here can further promote demetallization because its absorption is largely greater than the absorption of the metal layer 100 itself.

Along therewith, through the laser radiation, a laser deformation region 112 having a deformed visual appearance in which the demineralized rising portion 96 in the region above the opening portion 82 is perfectly aligned with the cut edge of the opening portion 82, The security document 110 shown in Fig. 6B constituting the security document 110 is created. The region formed by the descending portion 98 continues from the outside of the opening portion without any offset within the region of the opening portion 82. [ Therefore, the appearance of the secure document 110 mainly corresponds to the diagram in Fig. 5C. For example, the descending portion 98 may form a molecular sequence "PL ", and thus corresponds to the fragment region 66 in Figure 5c, while in the micropattern of the rising region 96, The background hologram corresponding to the region 64 can be encoded.

Additional details and variations of the patterning method on the basis of a metallized embossing pattern with raised and lowered portions are described in patent application PCT / EP2009 / 00882, the disclosure of which is incorporated herein by reference in its entirety have.

The embodiments in Figures 5 and 6 allow for a number of variations and modifications resulting from the possible embodiments described in the cited documents WO 2006/079489 Al and PCT / EP2009 / 00882. For example, unlike FIG. 6, a non-demetallized down portion may also only exhibit a micro-boss pattern, or only a down portion, but can be provided with micro-beaming without rising portions. The pattern in the embossing locker can generally also be recognized without metallization. However, if the locker 102 in Figure 6 exhibits a refractive index similar to the embossing locker 94, then this pattern can also be formed that can not be recognized.

In a further variant form, no pattern is provided in the metal area. To this end, for example, the pattern shown in the publication WO 2006/079489 (Fig. 5) is selected so that they are visibly poorly visible or the rising and falling portions (Fig. 6) It is not provided in the pattern. In both cases, after demetallization, in effect, the visual appearance for the safety element 120 shown in Fig. 7 is such that the fragment regions 122 and 124, which interact differently outside the opening 126, To provide the same appearance. The fragment regions 122 and 124 allow only the inside of the openings 126 to differentiate visually where the first fragment region 122 is deformed by laser radiation and has a radiation modified region 128 with a modified visual appearance, . In Fig. 7, for the sake of detailed explanation, in the outer region 125 of the opening, some of the fragment regions 122 and 124 are visually indistinguishable as shown by dotted lines.

In the embodiment according to Fig. 6, the printing ink can also be used as a layer to absorb laser radiation and prevent demetalization. In this manner, as in the bottom view of the security guard according to the present invention shown in Fig. 8, the colored pattern 130, which is exactly matched to the demetallization and opening 82 in the form of the radiation deformation area 112, Can be observed from the bottom.

Here, for the layer structure, an embodiment in which the metallization is placed on the foil and the foil is placed on the printing ink, or the metallization is placed between the foil and the printing ink, or the metallization is placed on the printing ink, Embodiments in which ink is placed on a foil can be considered. The visual appearance in all three embodiments corresponds to that in Fig.

If in FIG. 6 the laser-absorbing rocker is selected to be colored and the pattern is introduced into the rucker, two color inverse motifs matched in a hologram or matte pattern may be introduced. Here, if a deformer is selected for the locker to protect the metallization against laser radiation, then a visual impression is formed upon observation from above as in Figure 5c, and a visual impression as in Figure 8 is formed upon observation from below .

Alternatively, and as described in more detail in the application PCT / EP2009 / 00882, a modification can be selected in which the metallization is supported by the locker 102. Here, the used locker is preferably applied thinner so as to facilitate the creation of a transparent appearance. The non-transparent locker may lose the through-through effect of the opening.

The features described in connection with Figures 5 and 6 also employ a combination of the two. Additional design elements compared to the surrounding area may then appear at the opening and / or disappear.

It is possible to use the embodiments according to the present invention with particular advantages in micro-optical representational arrangement that can be specially formed as a micro-optical moire-type enlarged arrangement or module as an enlarged arrangement. The basic principles of such descriptive arrangement are described in publication WO 2009/000528 Al, the disclosure of which is incorporated herein by reference.

In the exemplary embodiment in Fig. 9, the foil element 140 is applied by means of a hot-melt adhesive to a security paper 160 having an opening 162. Fig. The foil element 140 includes a support foil 142 provided on top thereof with a grid-like arrangement of microlenses 144 forming a two-dimensional grating with a preselected symmetry on the surface of the support foil. The micro lens 144 designed as a spherical or non-spherical shape preferably exhibits a diameter of between 5 μm and 50 μm, especially between only 10 μm and 35 μm.

The lower portion of the carrier foil 142 is further divided into a plurality of cells, in which a motif layer 146 comprising a motif image with a micomorphic element 148 is arranged. The arrangement of the grating cells likewise forms a two-dimensional grating with a preselected symmetry. The diameter and the grating period of the grating cell of the motive image are in the same order of magnitude as that of the microlens 144, preferably in the range of 5 to 50 mu m, and particularly in the range of 10 to 35 mu m, Like the lens 144, the micro-motive element 148 is not visible to the naked eye.

In the case of a moire enlarged arrangement, the grating of the grating cell is somewhat different from the grating of the microlens 144 in its symmetry and / or in the magnitude of its grating variable, An image is created according to the type and size of the obset when the motif image is observed. The enlarged arrangement of the modules constitutes a generalization in which the motif image need not consist of gratings of individual motifs which are periodically repeated. The functional principles and details of module-widening arrangement are described in the above-mentioned publication WO 2009/000528 Al.

9, the motive layer 146 includes a raised portion 152 and a raised portion 152 that are first applied adjacently to the metal layer 156, as previously described in connection with FIG. 154). ≪ / RTI > In the exemplary embodiment in FIG. 9, the micro-motive element 148 is formed precisely by the descending portion 154 in the embossing locker layer 150.

As in FIG. 9, the metallized embossing patterns 150, 156 are applied with a laser beam absorbing locker 158 that fills the falling portion 154 and forms a thin toning film on the raised portion 152. The foil element 140 is then applied to the security paper 160 and is continuously charged from the bottom through the opening 162 by laser radiation. In this manner, the lifting portion 152 is demetallized in perfect match with the area on the opening 162, while the metal layer 156 is retained in the lowered portion 154. Outside the opening 162, the metal layer is completely unchanged on the rising portion 152 and in the falling portion 154.

In the closed security guard, when viewed, the moire magnifying micro-motive element 148 (falling portion 154) can be recognized only inside the opening 162 with respect to the background of the demetallized rising portion 152 , They can not be perceived outside the opening 162 due to the lack of contrast between the metallized lower portion 154 and the metallized riser 152.

In addition, with respect to the exemplary embodiment in Fig. 9, the visual appearance as depicted in Fig. 7 can be used as a security feature, such as a moiré, which moves in accordance with a selected magnifying glass effect when tilted at a right- But is obtained as an enlarged micro-motive element 148, but according to star 124. Since the opening 162 serves as a mask for demetallization of the raised portion 152, the change in the appearance from the star 124 to the metal layer uniformly appearing is independent of the inclination of the security paper, Exactly at the edge.

If, for example, the embossing locker layer 150 is additionally provided in a micro-boss pattern on the rising portion, then an appearance with a magnifying glass effect corresponding to Fig. 5C can also be produced. The letter "PL " then transitions due to the magnifying effect, and the demetallization occurs precisely at the boundary of the opening. On the inside of the opening 162, the moire magnifying micro-motive element (falling portion) can then be recognized with respect to the background of the demetallized rising portion, and the outside of the opening portion 162 can be seen in the background of the micro- For example, to form a background hologram.

If the laser-absorbing locker is selected in color in Figure 9, then the embodiments already described in connection with Figures 5 and 6 can also be realized in a micro-optical description arrangement. If the rear face of the support foil is also laminated with a lens, then it can also be a rear face with a micro-optical magnifying effect.

The demetallized region may also be arranged apart from the micropattern, so that in the region of the opening an inverse pattern formed by the demetallized regions arranged in the metallized inner pattern shape is created. The pattern-shaped demineralized regions can be designed, for example, in the form of geometric patterns or in the form of alphabetical arrangements.

10 shows an additional exemplary embodiment of a moiré magnification arrangement 170 constructed in part and a micro-optical magnification arrangement in Fig. 9, which are mutually corresponding elements provided with the same reference sign. Moire magnification micro-motive elements 174 and 176 can be perceived from inside and outside of aperture 162, but their color imprints are different when moire enlargement arrangement 170 is observed in Fig.

In this embodiment, the motif image of the enlarged arrangement is composed of a colored motif layer 172 having a micro-motif element 174, and the color of the motif layer 172 can be deformed by the action of laser radiation . For this purpose, the motive layer 172 may be made of a material, such as, for example, a laser that is available for other characteristics of the art, especially their surface color, color change under laser action, And may include a deformable pigment.

After application of the foil element with the motive layer 172 on the security paper 160, the micro-motive elements 174 all initially have the same starting color. Due to the laser impact from the bottom of the security paper 160 through the opening 162 the hue change is then induced in perfect match in the in-area motif layer 176 of the opening 162, Lt; RTI ID = 0.0 > 176 < / RTI > Thus, when the enlarged arrangement 170 is observed, a combination of the first color moiré magnifying micromotor element 174 and the second color moiré magnifying micromotor element 176 inside the opening appears outside the opening.

 The color change may consist of deformation into a colored motif layer in the transparent motif layer or discoloration of the colored motif layer in addition to deformation into the second color of the first color. In the case referred to earlier, a colored magnifying glass effect, which is visible only in the aperture and perfectly matched to the aperture, is produced, and in the latter case it is visible only on the outside of the aperture, An effect is generated.

The use of laser radiation is not essential for discoloration or discoloration of the rocker, and furthermore the color change can also be induced by UV or IR exposure. The support foil 142 of the microlens 144 and / or the locker is preferably provided with a suitable UV or IR absorber for the locker in these modifications that have not already been decolored through daylight.

Figure 11 illustrates a further exemplary embodiment of the present invention in which the micro-optical description array 180 represents a change in the motif image depicted at the cut edge of the opening 162 of the security paper 160 precisely.

Outside of the opening 162, a first motive image constituting the first moire magnification micro-motive element 182 can be observed in the form of a numeral string "50 ", as depicted in the plan view of Fig. 11B. Thus, the first micro-motive element 182 takes the information of the aperture 162 which is likewise formed in the form of a numerical string "50 ".

On the inside of the opening portion 162, a second motive image composed of the second moire magnifying micro-motive element 184 in the form of a flow channel symbol "? &Quot; The first and second micro-motive elements 182, 184, or the apertures 162 and the second micro-motive elements 184 thus complement each other in the form of a denomination of banknote "50?". The change between the first and second motif images occurs with a perfect match with the cut edge of the opening 162.

To create a perfect match of the image change, two layers of rocker systems with two laminate rocker layers 192, 194 of the same index of refraction are arranged on the lower portion of the support foil 196, A foil element 190 is used. Here, the first micro-motive element 182 is present in an embossed pattern in the upper locker layer 192 when viewed from the support foil 196 and the second micro-motive element 184 is observed from the support foil 196 The lower locker layer 194 is present in an embossed pattern. The opposite face of the support foil 196 is provided with a grid of microlenses 144, which are combined with the grids of the micro-motive elements 182, 184 as previously described.

In the region of the opening 162 the upper locker layer 192 of the locker system is ablated in perfect registration by the laser impingement of the foil element 190 from below the security paper 160 through the opening 162. Thus, when the periphery of the opening 162 is viewed through the microlenses 144, the "?" Only the second micro-motive element 184 in the form of a symbol can be seen inside the opening (FIG. 11B).

On the outside of the opening 162, two rocker layers 192 and 194 are directly stacked on top of each other. Light passing through the embossed pattern 184 at the interface of the rocker layers 192 and 194 is unaffected and the second micro-motive element 184 is located outside the opening 162 I can not recognize it. Furthermore, only the first micro-motive element 182 is visible only to the perceptible numerical column 182 due to the refractive index difference at the interface between the toplocker layer 192 and the bonding agent layer 198, It appears in the form of "50". If the layer 198 is dyed then the first micro motive element 182 outside the aperture 162 appears colored and the inner second micro motive element 184 of the aperture 162 is transparent.

Here, the upper locker layer 192 allows the first micro-motive element 182 and the second micro-motive element 184 to be placed substantially on the focal plane of the microlens 144 and to appear sharp when viewed .

The first micro-motive element 182 and the second micro-motive element 184 are shown to be the same in shape and size in Fig. 11A, but in practice they are generally stacked directly on top of each other, It does not.

In a further exemplary embodiment of the invention, the safety elements arranged on the foil element are arranged on the basis of a combination of a micro-lens and a concave micro-reflector to form a micro-optical descriptive arrangement visible from both above and below .

This safety element 201 applied to the banknote, for example, with reference to the schematic cross-sectional view in Figure 12, comprises a micropattern 205 embossed on its top 204 and a cross- A concave micro-reflector 208 and a support 203 representing a multi-microlens 209. The concave micro-reflector 208 and the microlens 209 are planes orthogonal to the view shown in Fig. 12 with a grid having a fixed geometry, for example a hexagonal grid, and are thus arranged in the plane of the observation element pattern.

Here, the support 203 comprises a PET foil 210 consisting of a radiation-curing locker and on which a first layer 211 representing the micropattern 205 is applied. A second layer 212 consisting of a radiation-curing locker and embossed with the inverse shape of the concave micro-reflector 208 and the shape of the microlenses 209 is formed on the bottom of the PET foil 210 do.

The micropattern 205 forming the micropattern object or micro-motive M1 is like a grid with a fixed geometry, here, for example, a hexagonal grid, a plane perpendicular to the plane of the figure in Fig. 12, Wherein the microstructured pattern is in cooperation with the observation element pattern and both patterns are arranged in a microstructured pattern as described in more detail in the above mentioned publications WO 2009/000528 A1 and WO 2006/087138 A1 Likewise, when the safety element 201 is viewed from the top (in the direction of the arrow P1), the micropattern 205 and the concave micro-reflector 208 are arranged to form a modulo-enlarged arrangement or a moire-enlarged arrangement . Here, the micropattern object M1 corresponds to a motif image according to WO 2009/000528 A1. For the observer, the micropattern object M1 can be enlarged and recognized as a safety feature (target image within the meaning of WO 2009/000528 A1), for observation in the upward direction (direction of arrow P1).

One surface of the second layer 212 facing away from the PET foil 210 is provided with a reflective coating 213 on the area A so that the concave micro-reflector 208 is formed as a rear reflector, ), In particular a metal layer. In the exemplary embodiment, the embossed shape for the inner surface of the reflective coating 213 of each concave micro-reflector 208 or the concave micro-reflector 208 has a diameter of the curved line of 38 占 퐉 and a spherical shape And has a shape of a cap. The layer thicknesses of the second layer 212 and the first layer 211 of the PET foil 210 are such that the micropattern 205 is only 19 microns away from the concave micro-reflector 208, The desired magnified image is selected to be placed on the focal plane of the concave micro-reflector 208 so as to be influenced by the generation of the safety feature.

In region B of the safety element 201, the metal layer 213 is removed by demetallization so that the embossed shape is not a concave micro-reflector, but rather a microlens 209. Here, the curvature radius of the convex surface 214 of the microlens 209 is the same as that of the concave micro-reflector 208, and therefore, in the exemplary embodiment, the microlens 209 is measured at 38 mu m, Lt; / RTI > The plane of focus E of the microlens 209 is thus secured so that it can not be recognized in the area B when the micropattern 205 is viewed from the lower part 207 of the safety element 201 .

The microlens 209 is intended not to image the micropattern 205 but to self-certify another banknote or banknote of the safety element 201. [ For the sake of self-verification, the additional micropattern object is enlarged and imaged by the means of the microlenses 209 when viewed in the direction toward the lower portion 207, The additional micropattern object contained at a position spaced laterally apart from the side surface of the safety element 201 is provided on the front side of the upper end 204 of the support 203 of the safety element 201 in the plane E by bending, buckling, .

To demonstrate another banknote, an additional micropattern image of another banknote may be applied to the enlarged image through the lower 207 by means of the microlens 209, so that it can be performed for verification of other banknotes. Is arranged in front of the top (204) of the safety element (201) in the plane (E) so as to pass the safety element (201).

According to the present invention, demetallization of the metal layer 213 is performed after application of the safety element 201 to the security paper with the opening and after the application of the safety element 201 through the opening of the security paper 207 due to the radiation effect of the metal layer 213. In this manner, the transition from the micromirror 208 to the microlens 209 (areas A and B in Fig. 12) occurs with perfect matching with the cut edge of the aperture.

The concave micro-reflector 208 and the microlens 209 may also be formed in different planes, as shown in the cross-sectional view in Fig. The layer structure of 210 to 212 corresponds to the structure in Fig. 12, and the mirrored surface of the concave micro-reflector 208 provided with the continuous metal layer 213 is shown in bold line (area A) in Fig. In region B, the metal layer 213 is partially removed by radiation effect so that a translucent concave micro-reflector 208 'is created therein, shown in dashed lines in Fig. Here, metallization is added to it in particular with a subpattern, for example a point or line grating, and is completely removed in the fragment region corresponding to this subpattern, so as to produce a semi-transparent metallization above all else.

A second PET foil 222 having a UV lacquer layer 223 formed thereon is attached to the layer 212 by a laminating adhesive agent 221 and the convex surface 214 of the microlens 209 is attached to the UV- Layer 223 as shown in FIG. The convex surface 214 represents a spherical cap having a curved surface radius of 18 mu m. The microlens 209 is spaced apart from the vertex of the convex surface 214 and the micropattern 205 with respect to the selected layer thickness due to the curved surface radius of the convex surface 214 of the microlens 209 of 18 占 퐉 Lt; RTI ID = 0.0 > m, < / RTI >

Also, in this exemplary embodiment, demetallization of the metal layer 213 occurs after application of the safety element 201 to the security paper with the opening and from the bottom 207 of the safety element 201 through the opening of the security paper, (213) and the second PET foil (222). In this manner, the transition from the fully metallized micromirror 208 to the translucent concave micro-reflector 208 '(boundary of regions A and B in Figure 13) is created to be perfectly aligned with the cut edge of the opening .

At the outside of the aperture (area A), the micropattern 205 is then visible to the observer from above (in direction P1) through the reflection of the fully metallized micromiller 208. In the inside of the opening (area B), the micropattern 205 is illuminated from above and below both by reflection in the translucent concave micro-reflector 208 'in detail (one in the direction P1) Direction P2) can be seen through the microlens 209 and the translucent concave micro-reflector 208 '.

Further details and advantages of combinations of microlenses and concave micro-reflectors can be found in German patent application DE 10 2009 022 612.5, the disclosures of which are incorporated herein by reference.

If the foil element is applied to the security paper by a hot-melt bonding agent or other bonding agent, then the hot-melt bonding agent 84 may cause an opening (e.g., 82). ≪ / RTI > This can result in a somewhat hazy appearance in the edge area of the opening. Thus, the bonding agent can be laser ablated in all embodiments, applied continuously, and can be ablated by the laser in the region of the opening 82 upon deformation. The bonding agent layer is then fully matched to the hot-melt bonding agent layer 198, for example, the cut edge of the opening, as shown in FIG. 11A. For this purpose, the bonding is preferably provided with an appropriate absorbent for laser radiation.

Instead of a simple metallization as described and illustrated in the exemplary embodiments for illustrative purposes, a multi-layered system of layers may also be used. If the laser parameters are appropriately selected, individual layers can be removed from such a layer system in the region of the openings. For example, in a thin film element having a color-transfer effect and typically comprised of a reflective layer, a dielectric spacing layer and an absorber layer, only the reflective layer or even only the absorber layer can be removed by laser action.

Of course, the described variations can be used in other data storage media having openings, such as polymer notes or foil composite banknotes, as well as in security papers. Here, if only one foil is processed by the laser, then the second foil must be transparent to the laser, or the second foil is still not applied in the laser processing step.

10 Banknotes
12 Banknote banknotes
14 opening
16 Lower
18 Top
20 Foil Strip
22 hologram
24 laser deformation area
30 Foil Strip
32 True-Color Holograms
34 Mountain Chain
36 Sky
38 Laser deformation area
40 security guard
42 opening
44 surrounding area
46 Lower
47 top
48 edge area
50 Designs
52 Colored areas
60 Foil element
62 Safety elements
64, 66 fragment region
70 security grounds
72 opening
74 Laser deformation area
80 security guard
82 opening
90 Foil element
92 Support foil
94 Embossing Locker Layer
96 rising portion
98 Lower part
100 metal layer
102 Laser-beam-absorbing locker
110 Security documents
112 Laser deformation area
120 Safety elements
122,124 fragment region
125 < / RTI >
126 opening
128 copy variation area
130 colored pattern
140 Foil element
142 Support foil
144 micro lenses
146 motive layer
148 Micro-motive elements
150 embossing rocker layer
152 rising portion
154 Lower part
156 metal layer
158 Laser-beam-absorbing rocker
160 security guard
162 opening
162 linear polarizing layer
164 Hot-melt bonding agent
170 Moire enlarge enlarge
172 motive layer
174, 176 Micro-motive elements
180 Micro-Optical Description Arrangement
182, 184 Micro-motive elements
190 Foil element
192, 194 rocker layer
196 Support foil
198 Bonding layer
201 Safety elements
203 Support
204 top
205 micro pattern
207 Lower
208 concave micro-reflector
208 'translucent concave micro-reflector
209 microlens
210 PET foil
211 Copy-hardened lockers
212 Copy - Curing Lockers
213 metal layer
214 convex surface of micro lens
221 Lamination adhesive
222 PET foil
223 UV locker layer

Claims (35)

- a window extending from the bottom to the top of the data storage medium,
A foil element having a safety element covering the window on top of the data storage medium, wherein a portion of the safety element is placed on the window and a portion of the safety element is placed next to the window,
The data storage medium comprising:
The part of the safety element placed on the window represents a radiation deformation area matched with the window, wherein the visual appearance of the safety element is deformed by the action of electromagnetic radiation. The data storage medium of claim 1, wherein the safety element represents a metal layer demarcated in the radiation strain region. 3. The data storage medium of claim 2, wherein the safety element comprises a metallized diffraction line, a metallized diffraction line, a metallized matte pattern or a thin film element having a hue transfer effect. 2. The system of claim 1 wherein the safety element represents first and second fragment regions that interact differently with electromagnetic radiation and wherein the first and second fragment regions are both partially located on the window and partially next to the window . 5. The data storage medium of claim 4, wherein the radiation deformation region includes only a first segment region that is not a second segment region so that the second segment region exhibits the same visual appearance on the window and next to the window. 5. The data storage medium of claim 4, wherein at least one of the two sub-areas represents an interference pattern in the form of a grating pattern defined by a grating constant and direction of the grating line. 5. The data storage medium according to claim 4, wherein at least one of the two fragment regions represents a surface-expanded boss pattern. The data storage medium according to claim 4, wherein the first and second segment regions are formed by the rising portion and the falling portion of the embossing pattern. 9. The data storage medium of claim 8, wherein the falling portion is filled with a radiation-reflective or radiation-absorbing cover layer. The data storage medium according to claim 1, wherein the safety element comprises a micropattern having a line width of between 1 탆 and 10 탆 and whose visual appearance is deformed in the radiation deformation region. 11. The method of claim 10, wherein the micropattern forms a motif image subdivided into a plurality of cells in which at least an image area of the target image specified in the radiation distortion area is arranged, Is between 5 탆 and 50 탆. 11. The apparatus of claim 10, wherein an observation grid comprised of a plurality of observation grid elements is provided for reconstructing a specified target image when the motif image is viewed as an aid to the observation grid, Lt; RTI ID = 0.0 > m. ≪ / RTI > 11. The data storage medium according to claim 10, wherein the hue of the micro pattern is deformed in the radiation deformation area. 11. The data storage medium of claim 10, wherein the inner and outer micropatterns of the radiation deformation region each depict a different motif. The lithographic apparatus of claim 10, wherein the micropattern is a two-layer locker system having a second motif image embossed in a bottom locker layer of substantially the same index of refraction and a first motif image in the top locker layer arranged on the bottom locker layer Wherein the upper locker layer is removed from the radiation deformation area such that the second motive image of the lower locker layer inside the radiation deformation area is visually recognizable and the upper locker layer Wherein the first motif image is visually recognizable. The method according to claim 1,
The safety element comprises a multi-reflective first micro-imaging element arranged on the surface of the observation element pattern, and a transmissive second micro-imaging element arranged on the surface of the observation element pattern,
The first micro-imaging element is located inside the radiation deformation area and the second micro-imaging element is outside,
The safety element comprises a micro-pattern object having a plurality of micro-patterns arranged in a pattern of microstructures combined with the observation element pattern, such that the micro-pattern object is magnified and imaged on the front surface of the top by the first micro- Further comprising:
The target planar area lying outside the safety element is assigned to the second micro-imaging element such that the micro pattern of the micro pattern object can not be perceived from below when viewed by the second micro-imaging element, but for verification, Wherein the additional micropattern object having the pattern is located in the target plane area such that the additional micropattern object is enlarged and imaged by the second micro-imaging element to the front surface of the upper end. 17. The data storage medium of claim 16, wherein the first micro-imaging element is formed as a concave micro-reflector or the second micro-imaging element is formed as a microlens. The data storage medium according to claim 1, wherein the window is formed in the form of a pattern, a letter or a code. The data storage medium according to claim 1, wherein the window is formed by an opening extending from a lower portion to an upper portion of the data storage medium. The data storage medium according to claim 1, wherein the window is formed by a transparent region of the data storage medium extending from the lower portion to the upper portion of the data storage medium. 2. The data storage medium of claim 1, wherein the data storage medium is multi-ply and the window comprises an opening in at least one data storage medium ply. The data storage medium according to claim 19 or 21, wherein the opening is formed by a line grating composed of a plurality of parallel cutting lines. The data storage medium according to claim 1, wherein the radiation deforming region is formed in the form of a pattern, a letter or a code. 2. The data storage medium of claim 1, wherein the foil element is applied to the top of the data storage medium with a laser-ablatable adhesive layer and the laser-ablatable adhesive layer is removed in the region of the window. a) providing a foil element having a data storage medium substrate and a safety element having a window extending from the bottom to the top of the data storage medium substrate,
b) covering the window on top of the data storage medium substrate with a foil element in such a way that a portion of the safety element is on the window and a portion of the safety element is on the side of the window;
c) pricing the safety element with electromagnetic radiation from the bottom of the data storage medium substrate and through the window to modify the visual appearance of the safety element in the radiation strain area lying on the window. 26. The method of claim 25, wherein in step c), the safety factor is priced to laser radiation. 26. The method of claim 25, wherein in step b), the foil element is applied to the top of the data storage medium with a laser-ablative bond, and in step c) the laser-ablatable bond present in the area of the window is removed Of the data storage medium. 26. The method of claim 25, wherein the window is formed by an opening, or the data storage medium is multi-ply and the window comprises an opening in at least one data storage medium ply. 29. The method of claim 28,
The data storage medium substrate or data storage medium ply has a laser-deformable marking substrate at least near the opening to be produced,
The opening is introduced into the data storage medium substrate or the data storage medium fly by the action of laser radiation, and
Characterized in that the laser-deformable marking substrate is deformed in the vicinity of the opening by the action of laser radiation. 5. The data storage medium of claim 4, wherein at least one of the two sub-areas represents a relief pattern in the form of a grating pattern defined by a grating constant and direction of the grating line. 11. The method of claim 10, wherein the micropattern forms a motif image subdivided into a plurality of cells in which at least an image area of the target image specified in the radiation distortion area is arranged, Is between 10 μm and 35 μm. 11. The apparatus of claim 10, wherein an observation grid comprised of a plurality of observation grid elements is provided for reconstructing a specified target image when a motif image is viewed as an aid to the observation grid, Lt; RTI ID = 0.0 > m. ≪ / RTI > 11. The data storage medium of claim 10, wherein the inner and outer micropatterns of the radiation deformation region each depict a different pattern, character or code. 26. The method according to claim 25, wherein in step c), the safety element is priced with UV radiation, visible light radiation or near-infrared radiation with a wavelength up to 1.5 m. 26. The method according to claim 25, wherein in step a), the opening is introduced into the data storage medium ply or data storage medium substrate including the opening by laser cutting or punching with a cutting laser at a wavelength of 10.6 mu m Of the data storage medium.

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