BG4170U1 - Document protector - Google Patents

Abstract

A document protector comprising a substrate layer (11) and a glossy layer (12) formed on the substrate layer (11), wherein: The glossy layer (12) includes a central zone (22) located between the lateral zones (21, 23); wherein each of the zones (21, 22, 23) includes a plurality of embossed parallel strips (31, 32, 33); wherein the width of a strip (31, 32, 33) does not exceed 100 micrometers and the distance (D) between the two adjacent strips (31, 32, 33) of a zone (21, 22, 23) does not exceed 100 micrometers; and wherein at least one strip (32) of the central zone (22) is inclined relative to the nearest strip (31) of one lateral zone (21) and relative to the nearest strip (33) of another lateral zone (23) at an angle other than 180°.

Description

Field of technology

This utility model refers to a security document that includes an optically variable security feature or feature that contains an image that appears to move when the viewing angle changes.

BACKGROUND OF THE INVENTION

Protected documents include banknotes, identity documents, diplomas or various certificates, certificates and the like.

Such protected documents may have a substrate made of cellulosic material (such as paper), plastic material (such as polycarbonate (PC) or polyvinyl chloride (PVC)) or other suitable material (such as a mixture of cellulose and plastic). One or more security elements may be formed on the substrate to limit the falsification of the protected document.

Optical variable security elements are known, such as holograms, in which a three-dimensional image is generated as a result of light diffraction. Kinematic holograms are known in which the holographic image can change shape, location and / or size depending on the angle of observation.

Protective elements formed by foil stamping (e.g. metal foil stamping) by pressing the foil to the substrate with the stamp are also known. As a result of the stamping process, the foil is integrated into the substrate in accordance with the shape of the stamp. Known security features of this type do not exhibit the characteristics typical of kinematic holograms.

There is a need to provide a security document with an alternative security element that is optically variable and that includes an image that appears to move when the viewing angle changes.

Technical essence of the utility model

Disclosed herein is a security document comprising a substrate layer and a glossy layer formed on the substrate layer, wherein the glossy layer comprises a central zone located between lateral zones; wherein each of the zones includes a plurality of embossed parallel strips; in which the width of one lane does not exceed 100 pm and the distance (D) between two adjacent lanes of one zone does not exceed 100 pm; and wherein at least one strip of the central zone is inclined relative to the nearest strip of one side zone and to the nearest strip of another side zone at an angle other than 180 °.

At least one strip of the central zone may be inclined to the nearest strip of one side zone, as well as to the nearest strip of another side zone, at an angle of 90 ° to 178 °, with the strips of the side zones zones forming corners with the same band from the central zone are located on the same side of the line representing an extension of this band from the central zone.

The central zone and the lateral zones may be in the form of parallel stripes.

The central area and the side areas may have the shape of rings.

The center zone and side zones may have irregular shapes.

The central zone may be adjacent to at least one side zone.

The document may include a space between the center area and at least one side area.

The strips from at least one side zone and / or the strips from the central zone may be straight.

The strips from at least one side zone and / or the strips from the central zone may be curved.

The document may include multiple central areas and multiple side areas.

The document may also include a backing layer that adheres to the substrate layer, the backing layer including a window.

A portion of the glossy layer may be in the form of a text symbol and / or a graphic symbol, and / or a denomination of a banknote.

The document may also include transparent sections.

The document may also include relief sections and / or raster sections.

These and other features, aspects and advantages of the utility model will be better understood by reference to the following figures, descriptions and claims.

Explanation of the attached figures

This utility model is presented by means of exemplary embodiments of figures, where:

Figure 1 shows a first embodiment of a security document in cross section;

Figure 2 shows a first embodiment of the security document in magnification, which shows details of the structure of the strip zones forming a security element;

Figures 3A to 3C show schematically the principle of operation of the security element;

Figure 4 shows a second embodiment of the protected document with striped strip zones;

Figure 5 shows a third embodiment of the protected document with ring-shaped strip zones;

Figure 6 shows a fourth embodiment of the protected document with a space in the form of a digital sign;

Figures 7A to 7B show a fifth embodiment of the protected document with repeating motif stripes;

Figures 8A - 8C show an exemplary arrangement of the strip zones on the substrate layer of the protected document;

Figure 9 shows a sixth embodiment of the protected document with a window backing layer;

Figure 10A shows a secure document including a raster print area;

Figure 10B shows the protected document including an embossed area;

Figure 11A shows a seventh embodiment of the protected document;

Figure 11B shows the bands visible to the observer in the form of the motif shown in Figure 11A;

Figure 12A shows an eighth embodiment of the protected document;

Figure 12B shows the bands visible to the observer in the form of the motif shown in Figure 12A.

Detailed description of the utility model

Figure 1 shows a cross section of a security document. The protected document includes a substrate layer 11, which is preferably matte, with a glossy layer 12 made of glossy material.

The substrate layer 11 can be made of various materials, for example paper, plastic (such as polycarbonate (PC) or polyvinyl chloride (PVC)), paper mixed with plastic fibers, or paper mixed with plastic (ie hybrid substrate).

The glossy layer 12 can be made of different materials. For example, it can be made of metal foil. It can also be in the form of a coating, such as a metal coating, metallic paint, iridescent coating, glossy varnish or optically variable paint. The glossy layer 12 can be applied to the substrate layer 11 by various techniques, such as offset printing, offset printing, printing, screen printing, flexographic printing, hot stamping or cold stamping.

The glossy layer 12 shines when illuminated with light (as visible light), while the substrate layer 11, when illuminated with the same light, is characterized by a brightness different from the gloss of the glossy layer 12. In particular, if the substrate layer 11 is matte, the substrate layer 11 has no gloss.

As shown in Figure 2, in magnification, the glossy layer 12 includes at least three zones 21, 22, 23, each of which includes strips 31, 32, 33 formed within the material of the glossy layer 12. The zones include a central zone 22 with a plurality of parallel strips 32 formed in this area. The central zone 22 is located between two side zones 21, 23, each side zone 21, 23 including a plurality of parallel bands 31, 33 which are formed in the respective side zone 21, 23.

The strips 31, 32, 33 of each zone 21, 22, 23 can be formed by various techniques, such as printing by engraving steel (without paint) or dry stamping.

An important aspect of all embodiments presented here is that at least one strip 32 of the central area 22 is inclined relative to the nearest strip 31 of one side area 21, as well as to the nearest strip of another side area 23, below angle other than 180 °.

Preferably, at least one strip 32 of the central zone 22 is inclined relative to the nearest strip 31 of one side zone 21 and to the nearest strip 33 of another side zone 23 at an obtuse angle in the range 90 ° to 178 °, these strips 31, 33 of the side zones 21, 23 being formed on the same side by a line 40 which forms an extension of the strip 32 of the central zone 22. The strips forming the obtuse angles, namely 31 and 32 or 32 and 33, may be in contact with each other or may be spaced apart. In the second case, the angle can be measured at the intersection of the lines that form an extension of the two spaced strips.

In Figure 2, for the sake of clarity, the strip 32 of the central zone 22 and the two nearest bands 31, 33 of the lateral zones 21, 23 are marked schematically with bold lines, and the lateral zones 21, 23 as well as the central zone 22 are marked with dotted lines.

Each strip 31, 32, 33 in the area of one zone 21, 22, 23 is no more than 100 pm wide. For example, each strip 31, 32, 33 may have a width in the range of 10 to 100 pm, preferably 50 pm. In addition, the distance D (shown in Figure 1) between two adjacent lanes in the area of one zone does not exceed 100 pm.

The strips 31, 32, 33 of at least one zone 21, 22, 23 may be straight or curved, or straight and curved. For example, the strips 31, 32, 33 may have a wavy shape.

The characteristics discussed above, including the dimensions of the bands 31, 32, 33, their relative position, and preferably the obtuse angles, give the observer a visual impression of the movement of the bands 31, 32, 33 between the central zone 22 and the lateral zones 21. , 23. This movement is schematically illustrated in Figure 3 and imparts a technical effect and utility to the security element.

Each strip 31, 32, 33, due to its formation in the glossy layer 12, can reflect incident light, whereby the dimensions of the strips 31, 32, 33, as well as their relative position, create the effect that illuminating the protected document with light the observer 50 may see only the bands 31, 32, 33 or only parts of the bands 31, 32, 33 which are substantially perpendicular to the direction of the incident light 51. For example, as shown in Figure 3A, the bands 31 of the first side zone 21, which are perpendicular to the direction of the incident light 51, are visible to the observer 50, as schematically indicated by a bold line. In turn, the bands 31 of the central zone 22 and the bands 32, 33 of the second side zone 23 are not visible to the observer.

On the other hand, in the event of a change in the direction of the incident light 51, the strips 32 of the central area 22 (Figure 3B) or the strips 33 of the second side area 23 (Figure 3C) are visible to the observer. The observer can only see the bands - either 32 or 33, which at the moment are perpendicular to the direction of the incident light 51.

When the direction of the incident light 51 changes continuously, for example when the observer 50 changes the angle of inclination of the protected document relative to the direction of the incident light 51, the visibility of the strips 31, 32, 33 changes accordingly. the strips 31, 32, 33 on the surface of the protected document.

The glossy layer 12 may include more than three zones 21, 22, 23 of the strips. For example, the glossy layer 12 may include four zones, five zones, six zones, seven zones or more than seven zones of the strips 31, 32, 33.

Moreover, in one embodiment, the central zone 22 and the side zones 21, 23 of the strips 31, 32, 33 may be arranged on the substrate layer 11 so that the zones 21, 22, 23 are spaced apart. For example, the central zone 22 may be spaced either by one side zone 21 or 23 or by the two side zones 21, 23. For example, the zones 21, 22, 23 may be spaced by a solid line. In another embodiment, the central zone 22 may be adjacent to the first and second side zones 21, 23, or the central zone 22 may be adjacent to one of the side zones 21, 23 - either the first or the second.

Zones 21, 22, 23 with bands 31, 32, 33 may be of different shapes or designs, for example zones may be in the form of parallel stripes (Figure 4), concentric rings (Figures 5, 7A), graphic signs, letters , figures and / or repeating motifs, such as wallpaper designs (Figure 7B). Figure 7A shows in magnification a repeating block of the design shown in Figure 7B.

The security element in one embodiment includes a plurality of zones 21, 22, 23 of the strips 31, 32, 33. For example, as shown in Figure 4, the security element of the security document may include seven band zones or the security element may include four band zones , as shown in Figure 5, so that the security element shows the usefulness and technical effect and in the implementation with three zones 21, 22, 23 of the strips 31, 32, 33.

In the embodiment shown in Figure 5, the central zone 22 is ring-shaped, while the side zones 21, 23 form adjacent concentric rings: one side zone 21 forms an inner ring and the other side zone 22 forms an outer ring. Depending on the direction of the incident light (shown schematically by arrows), the observer may see areas 21, 22, 23 of lanes 31, 32, 33, in which lanes 31, 32, 33 are formed perpendicular to the direction of incident light, as is schematically marked in darker color in Figures 4 and 5.

The glossy layer 12 with the formed zones 21, 22, 23 of the strips 31, 32, 33 may partially or completely cover the substrate layer 11. In the latter case, the glossy layer 12 may have a surface of different shapes, for example the face value of a banknote - as shown in Figure 8C, either the form of an inscription or the form of various graphic elements, such as a filled strip 12 formed across the entire width of the protected document: Figure 8B, close to the transparent graphic motif, eg motif "20".

In another embodiment, the protected document may include smooth portions 60 of the glossy layer 12, i. without formed bands, as shown schematically in Figure 6. Areas that are smooth are not characterized by the visual effects described above.

In another embodiment, the glossy layer 12 may have a blank space, for example in the form of a graphic sign, text symbol or numeric sign. In addition, in addition to the blank space, the protected document may include various sections, such as raster sections 62 (as shown in Figure 10A) or relief sections 63 (as shown in Figure 10B), or another section.

In yet another embodiment, the glossy layer 12 can be applied to the transparent film and together with this film the glossy layer 12 can be applied to the substrate layer 11 so as to form zones 21, 22, 23 of the strips 31, 32, 33. as shown in Figures 8A and 8B.

In addition, in the glossy layer 12, the areas 21, 22, 23 of the strips 31, 32, 33 may be formed over the entire surface - as shown in Figures 4, 5, 6, 7A, 7B, or the glossy layer 12 may have surface in the form of a digital sign, for example "20", as well as smooth sections 60 - without formed strips, and sections of zones 21, 22, 23 of formed strips 31, 32, 33, as shown in Figure 11 A. The security document it may also include the strips 31, 32, 33 formed in the substrate layer 11, within the areas not covered with the glossy material. In such an embodiment, the observer can only see the strips 31, 32, 33 formed in the glossy layer 12. Figure 11B shows the same embodiment of Figure 11A, noting the strips 31, 32, 33 formed in the glossy layer 12, which are visible for the observer.

Figure 12A shows another embodiment in which the protected document is provided with a glossy layer 12 on the surface forming the digital motif "20", the glossy layer 12 comprising areas of strips 31, 32, 33 formed over its entire surface. The strips 31, 32, 33 are characterized by the visual effect described above. In addition, the protected document may include the strips 31, 32, 33 formed in the areas of the substrate layer 11 which are not covered with the glossy layer 12, so that the strips are not characterized by the above-described visual effect of movement. The strips 31, 32, 33, which are formed only in the substrate layer 11, are not visible to the observer, as shown in Figure 12B.

In yet another embodiment shown in Figure 9, in addition to the glossy layer 12, the security document may include other layers, for example a backing layer 13, which, for example, may be made of paper including a blank space in the form of a window. , where the glossy layer 12 with the zones 21, 22, 23 of the formed strips 31, 32, 33 can be applied.

The structure of the zones 21, 22, 23 of the formed strips 31, 32, 33 is a security element of the security document. The technical effect and the usefulness of the security element are as follows. The observer can only see certain bands, while the other bands remain invisible to the observer, depending on the angle of the incident light. Such an element can be seen only if the security element includes at least three zones 21, 22, 23 of the strips 31, 32, 33 - with the arrangement described above. Accordingly, with a gradual change in the angle of observation, the observer has the impression of moving the bands 31, 32, 33 between the respective zones 21, 22, 23. Therefore, the resulting effect is similar to the effect of kinematic holograms, but nevertheless the protected document is obtained by stamping the strips in the glossy layer 12, therefore in a simpler way than with the hologram.

In addition, the glossy layer 12 may include smooth areas without formed bands where no reflection of light is observed, as in the case of the formed bands (31, 32, 33).

Although the utility model is described in terms of a limited number of implementations, it will be appreciated that many variants, modifications, and other applications of the utility model can be made. Therefore, the claimed utility model, as set forth in the claims below, is not limited to the embodiments described herein.

Claims (1)

Security document comprising a substrate layer (11) and a glossy layer (12) formed on the substrate layer (11), wherein: - the glossy layer (12) comprises at least one central zone (22) located between at least two side zones 21, 23); - wherein each of the zones (21, 22, 23) includes a plurality of stamped parallel strips (31, 32, 33); - wherein the width of one strip (31, 32, 33) does not exceed 100 micrometers and the distance (D) between two adjacent strips (31, 32, 33) of one zone (21, 22, 23) does not exceed 100 micrometers; - and wherein at least one strip () of at least one central zone () is inclined towards the nearest strip (31) from at least one side zone (21) and towards the nearest strip (33) from the other side zone zone (23) at an angle other than 180 °