Method for manufacturing a relief engraving tool with topography containing code

Description

1 / 49 METHOD FOR MANUFACTURING A RELIEF ENGRAVING TOOL WITH TOPOGRAPHY CONTAINING CODE FIELD OF TECHNIQUE

[0001] The present invention relates to the manufacture of an embossing tool with a coded topography. More specifically, the coded topography is obtained from providing alphanumeric or graphical information in a raster code, processing an image into a plurality of raster images of 1s and 0s, and projecting these images onto a surface structure scan of the embossing tool, which will be used as a plane for engraving the surface structures of the coded topography. BACKGROUND

[0002] International Publication WO 98 / 23979 refers to an anti-counterfeiting proof reproduction of colored images on various surfaces, such as, for example, banknotes, such reproduction being referred to as a diffractive device. In this diffractive device, the observed diffraction image is composed of pixels of numerous different colors, with the hue and intensity of most pixels being similar to those of immediately adjacent pixels so that the image has a substantially continuous smooth color tone, and each combination of hue and intensity is generated by the combined diffractive effect of the physical characteristics of one or more regions of the surface relief structure. The security of such technology is based on the reproduction of a colored image that can be seen using appropriate viewing angles and light.It is described as how a color image can be broken down into three separate grayscale images corresponding to red, green, and blue respectively, and how these grayscale images are converted into palettes of different color intensities, resulting in a single image. Petition 870250088650, dated 09 / 30 / 2025, p. 7 / 105 2 / 49 monochromatic red component image, in a monochromatic green component image, and in a monochromatic blue component image. The transfer of structures to the component images may be through the corresponding grid palettes that are transferred by means of an electron beam lithography machine, followed by various treatments and possibly by means of embossing a code piece onto a metal sheet.

[0003] European Publication EP 2 946 341 B1 refers to a method of concealing a code between color standards by means of printing, whereby a code pattern is provided in at least one of the color standards. The code patterns are distinguished from other color standards by means of parameters that reflect the technical characteristics of the printing process with which the patterns are respectively printed.

[0004] One problem addressed by the present invention is to find an alternative to these previous techniques in order to combine an alphanumeric image code into an image adapted for embossing. SUMMARY OF THE INVENTION

[0005] In a first aspect, the present invention provides a method of manufacturing an embossing tool with a code-containing topography, whereby the topography is configured to represent a combination of an image and alphanumeric or graphical information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool. The method comprises the steps of providing an image file containing an image pixel raster with a given bit depth and a Petition 870250088650, dated 09 / 30 / 2025, page 8 / 105 3 / 49 Initial image resolution, transform the image file into a primary image pixel raster with the specified resolution, where the bit depth of an image pixel in the primary image pixel raster is 1, provide an image pixel raster code for the alphanumeric or graphic information, the raster code being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by pixels in state 0, with a bit depth of 1 and with the specified resolution, apply a first logical operation to combine the image pixel raster code and the primary image pixel raster in order to obtain a first image pixel raster as a result, whereby the first logical operation is defined as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), where mn are row and column indices with reference to a pixel in the image pixel scan. The method further comprises the step of applying a second logical operation to combine the first image raster of the image pixels and the raster code of the image pixels in order to obtain a second image raster of the image pixels, whereby the second logical operation is defined as: StateOfPixelFrom2ndImageRaster (m,n) = NOT( StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFromCodeRaster (m,n)), where the raster code of the image pixels, the first raster image of the image pixels, and the second raster image of the image pixels comprise, respectively, pixels of bit depth 1, such that, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the surface. Petition 870250088650, dated 09 / 30 / 2025, page 9 / 105 4 / 49 of the embossing tool corresponding to an image pixel position (m,n) in the scan, while a pixel state 0 indicates that no specific raster surface structure for that scan should be planned in the topography for another location on the embossing tool surface corresponding to another image pixel position in the scan. The method further comprises the steps of projecting the raster code of the image pixels, the first raster image of the image pixels, and the second raster image of the image pixels onto the embossing tool surface in order to obtain the topographic raster of the locations on the embossing tool surface for the specific raster surface structures, and embossing the specific raster surface structures onto the embossing tool surface at their respective locations, thus obtaining the code-containing topography.

[0006] In a further aspect, the present invention provides a method of manufacturing an embossing tool with a code-containing topography, whereby the topography is configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool. The method comprises the steps of providing an image file containing an image pixel raster with a given bit depth and an initial image resolution, transforming the image file into a primary image pixel raster with the given resolution, wherein the bit depth of an image pixel in the primary image pixel raster is 1, providing an image pixel raster code for the alphanumeric or graphic information, the raster code Petition 870250088650, dated 09 / 30 / 2025, p. 10 / 105 5 / 49 being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by the pixels in state 0, with a bit depth of 1 and with the given resolution, apply a first logical operation to combine the raster code of the image pixels and the primary raster of image pixels in order to obtain a first raster image of the image pixels as a result, whereby the first logical operation (500) is defined as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), where mn are row and column indices with reference to a pixel in the image pixel scan. The method also includes the step of applying a first translation to the first raster image of the image pixels in order to obtain a third primary raster image of the image pixels, whereby the first translation is defined by a first translation equation: StateOfPixelOfPrimaryThirdImageRaster (m,n) = StateOfPixelFrom1stImageRaster (ma,nb) aeb corresponding to a translation vector in the scan, the first translation equation being applied when ma or nb correspond, respectively, to the indices of a pixel within a range of the scan under consideration for the first translation, and StateOfPixelOfPrimaryThirdImageRaster (m,n) = 0 if ma or nb correspond, respectively, to the indices of a pixel outside a range of the scan under consideration for translation.

[0007] The method further comprises the step of applying a third logical operation (1101) to combine the raster code of the image pixels (401), the first scan of the image pixels (501) and the third primary raster image of the image pixels (1103) in order to Petition 870250088650, dated 09 / 30 / 2025, p. 11 / 105 6 / 49 obtain a third scan of the image pixels (1102), as a function of which the third logical operation (1101) is defined as: StateOfPixelFrom3rdImageRaster (m,n) = StateOfPixelFromPrimary3rdImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) AND StateOfPixelFrom1stImageRaster (m,n) ))

[0008] The method further comprises the step of applying a fourth logical operation (1301) to combine the raster code of the image pixels (401), the first scan of the image pixels (501) and the third raster image of the image pixels (1102) in order to obtain a fourth scan of the image pixels (1302), whereby the fourth logical operation (1302) is defined as: StateOfPixelFrom4thImageRaster (m,n) = NOT( StateOfPixelFromCodeRaster (m,n) OR StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFrom3rdImageRaster (m,n) ) wherein the raster code of the image pixels, the first raster image of the image pixels, the third raster image of the image pixels, and the fourth raster image of the image pixels comprise, respectively, pixels of bit depth 1, wherein, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the embossing tool surface corresponding to a position (m,n) of the image pixel in the scan, while a pixel state 0 indicates that no specific raster surface structure for that scan should be planned in the topography for another location on the embossing tool surface corresponding to another position of the image pixel in the scan.The method also includes the steps of designing the raster code of the image pixels, the first raster image of the image pixels, the third raster image of the image pixels, and the fourth raster image of the image pixels. Petition 870250088650, dated 09 / 30 / 2025, page 12 / 105 7 / 49 gem on the surface of the embossing tool in order to obtain the topographic raster of the locations on the surface of the embossing tool for the specific raster surface structures, and emboss the specific raster surface structures on the surface of the embossing tool in their respective locations obtained and, in this way, obtain the topography containing code.

[0009] In a preferred embodiment, the method further comprises, after the first translation, at least the steps of applying at least one further translation and at least one additional logical operation in order to obtain a (2i+1)-nth raster image of the image pixels and a (2i+2)-nth raster image of the image pixels by applying a general rule as follows, where i corresponds to the number of an i-th iteration: StateOfPixelFrom(2i+1)ImageRaster (m,n) = StateOfPixelFromPrimary(2i+1)ImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) AND StateOfPixelFrom1stImageRaster (m,n) AND StateOfPixelFrom3rdImageRaster (m,n) AND ... AND StateOfPixelFrom(2i1)ImageRaster (m,n) )) the additional logical operation being defined by: StateOfPixelFrom(2i+2)ImageRaster (m,n) =NOT( StateOfPixelFromCodeRaster (m,n) OR StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFrom3rdImageRaster (m,n) OR ... OR StateOfPixelFrom(2i+1)ImageRaster (m,n) ) as a function of which all image pixel scans comprise, respectively, pixels of bit depth 1, where, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the embossing tool surface corresponding to a position (m,n) of the image pixel in the scan, while a pixel state 0 indicates that Petition 870250088650, dated 09 / 30 / 2025, p. 13 / 105 8 / 49 No specific raster surface structure for that scan should be projected onto the topography for another location on the embossing tool surface corresponding to another image pixel position in the scan. The method further comprises the steps of projecting all image pixel scans onto the embossing tool surface in order to obtain the topographic raster of the locations on the embossing tool surface for the specific raster surface structures, and embossing the specific raster surface structures onto the embossing tool surface at their respective locations, thereby obtaining the code-containing topography.

[0010] In a preferred embodiment, the embossing tool with a code-containing topography is a roller provided with a vacuum-deposition coating, with a thickness between 0.5 µm and 10 µm, exhibiting a hardness of 0.5 GPa to 5.0 GPa.

[0011] In a preferred embodiment, the embossing on the surface of the embossing tool occurs by means of any of the techniques listed in the following list: Direct focus of at least one laser beam onto the surface of the embossing tool, mask projection onto the surface of the embossing tool, chemical engraving or plasma engraving, grinding or fine milling.

[0012] In a preferred embodiment, code information engraved on surfaces using the embossing tool with a code-containing topography is readable and decodable with a decoding device.

[0013] In a preferred embodiment, code information is engraved on surfaces using the embossing tool. Petition 870250088650, dated 09 / 30 / 2025, page 14 / 105 9 / 49 with a topography containing code are readable and decodable only at a specific viewing angle, obtained through a specific orientation of the surface structures specific to the raster code.

[0014] In a preferred embodiment, specific raster surface structures have a lateral dimension and height in a range between 10 pm and 1 mm, and a preponderant influence on a visual aspect, on a tactile feel, or on the mechanical properties of the materials on which the structures are embossed using the embossing tool with a topography containing code.

[0015] In a preferred embodiment, specific raster surface structures have a lateral dimension and heights in a range between 1 pm and 100 pm and a preponderant influence on the functionality of the surface on which the structures are embossed using the embossing tool with a topography containing code, modifying properties such as wettability, feel to the touch, thermal or electrical transfer, and specular or diffuse reflection (matting).

[0016] In a preferred embodiment, specific raster surface structures have a lateral dimension and height in a range between 0.1 pm and 10 pm and a preponderant influence on a reflection behavior of the surfaces on which the structures are embossed using the embossing tool with a code-containing topography, generating holographic colors, diffraction patterns, and optical effects dependent on the viewing angle.

[0017] In a further aspect, the present invention provides a use of an embossing tool with a code-containing topography manufactured in accordance with the methods described above. Petition 870250088650, dated 09 / 30 / 2025, page 15 / 105 10 / 49 in this document, to emboss a material in any of the scenarios in the following list: In-line embossing of packaging material; Off-line embossing of packaging material; Hot embossing of polymer and / or metal-based films; extrusion coating lines; Molding and curing method or UV varnish-based transfer method or X-ray varnish; Any type of transfer technology in which topography containing code is transferred.

[0018] In a further aspect, the present invention provides an embossing tool with a code-containing topography, whereby the topography is configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool, whereby each of the surface structures will be one among a given set of surface structures, each of the surface structures of the given surface set being associated with a corresponding image pixel scan at the given resolution, at least one scan being representative of the alphanumeric or graphic information, the raster code being constructed from the code characteristics of the contiguous pixels in state 1,the contiguous pixels being surrounded by the pixels in state 0, and the remaining image scans being the result of image processing by at least one or more processes from a list comprising transformation, lo operation, Petition 870250088650, dated 09 / 30 / 2025, page 16 / 105 11 / 49 logic, or translation, and the surface structures corresponding to an associated scan of the image pixels having a specific shape, size, orientation, and scale parameter for the surface structures.

[0019] In a further aspect, the present invention provides a device for manufacturing an embossing tool with a code-containing topography, whereby the topography is configured to represent a combination of an image and alphanumeric or graphical information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool. The device comprises a computing means configured to provide an image file containing an image pixel raster with a given bit depth and an initial image resolution, transforming the image file 100, 101 into a primary image pixel raster 300, 301 with the given resolution, wherein the bit depth of an image pixel in the primary image pixel raster is 1,To provide a raster code of image pixels for alphanumeric or graphical information, the raster code being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by pixels in state 0, with a bit depth of 1 and with a given resolution, apply a first logical operation 500 to combine the raster code of image pixels 400, 401, 402 and the primary raster of image pixels 300, 301 in order to obtain a first raster image of image pixels 501 as a result, whereby the first logical operation 500 is defined as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), Petition 870250088650, dated 09 / 30 / 2025, p. 17 / 105 12 / 49 where men are row and column indices with reference to a pixel in the image pixel scan, apply a second logical operation 601 to combine the first raster image of image pixels 501 and the raster code of image pixels 400, 401, 402 in order to obtain a second raster image of image pixels 600, whereby the second logical operation 601 is defined as: StateOfPixelFrom2ndImageRaster (m,n) = NOT( StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFromCodeRaster (m,n)), wherein the raster code of the image pixels, the first raster image of the image pixels, and the second raster image of the image pixels comprise, respectively, pixels of bit depth 1, such that, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the embossing tool surface corresponding to a position (m,n) of the image pixel in the scan, while a pixel state 0 indicates that no specific raster surface structure for that scan should be planned in the topography for another location on the embossing tool surface corresponding to another position of the image pixel in the scan, project the raster code of the image pixels,The first raster image of the image pixels and the second raster image of the image pixels on the surface of the embossing tool in order to obtain the topographic raster of the locations on the surface of the embossing tool for the specific raster surface structures, and an engraving medium configured to engrave on the surface of the embossing tool the specific raster surface structures in their respective locations obtained and, in this way, obtain the topography containing code. Petition 870250088650, dated 09 / 30 / 2025, page 18 / 105 13 / 49 BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be better understood through the description of preferred embodiments and with reference to the drawings, in which:

[0021] Figure 1 shows an example of a grayscale image with a given bit depth;

[0022] Figure 2 contains a flowchart of an image transformation process;

[0023] Figure 3 contains an example of image transformation at two different resolutions according to the present invention;

[0024] Figure 4 shows an example of a representative monogram raster code according to the present invention;

[0025] Figure 5 illustrates a first logical operation applied to a primary raster image of image pixels and a raster code of image pixels according to a preferred embodiment of the present invention;

[0026] Figure 6 illustrates a second logical operation applied to a first raster image of the image pixels and the raster image code of the image pixels according to a preferred embodiment of the present invention;

[0027] Figure 7 illustrates a raster overlay feature;

[0028] Figure 8 illustrates another example of applying the first logical operation;

[0029] Figure 9 illustrates another example of applying the second logical operation;

[0030] Figure 10 illustrates another raster overlay feature;

[0031] Figure 11(a) illustrates an example of a first conformal translation applied to the first raster image of the image pixels; Petition 870250088650, dated 09 / 30 / 2025, page 19 / 105 14 / 49

[0032] Figure 11(b) illustrates an application of a third logical operation in order to obtain a third raster image of the image pixels;

[0033] Figure 12(a) illustrates an example of a second conformal translation applied to the first raster image of the image pixels;

[0034] Figure 12(b) illustrates an application of a fifth logical operation in order to obtain a fifth raster image of the image pixels;

[0035] Figure 13(a) illustrates an application of a fourth logical operation in order to obtain a fourth raster image of the image pixels;

[0036] Figure 13(b) illustrates an application of a sixth logical operation in order to obtain a sixth raster image of the image pixels;

[0037] Figure 14 illustrates a flowchart explaining how a (2i+1)-nth logical operation is defined according to a preferred embodiment of the present invention;

[0038] Figure 15 illustrates a flowchart explaining how a (2i+2)-nth raster image of the image pixels is computed according to a preferred embodiment of the present invention;

[0039] Figure 16(a) illustrates another example of an overlay feature;

[0040] Figure 16(b) illustrates yet another example of an overlay feature;

[0041] Figure 17 contains a schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention;

[0042] Figure 18 contains another schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention; Petition 870250088650, dated 09 / 30 / 2025, page 20 / 105 15 / 49

[0043] Figure 19(a) contains a schematic representation of an exemplary embossing tool;

[0044] Figure 19(b) contains another schematic representation of an exemplary embossing tool;

[0045] Figure 20 contains a representation of an embossing configuration comprising 2 embossing rolls;

[0046] Figure 21 contains another schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention;

[0047] Figure 22 contains another schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention;

[0048] Figure 23 contains another schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention;

[0049] Figure 24 contains another schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention;

[0050] Figure 25 contains another schematic example of a topographic raster with different surface structures according to a preferred embodiment of the present invention;

[0051] Figure 26 schematically illustrates a projection of raster images onto a side surface of an embossing tool to be engraved;

[0052] Figure 27(a) illustrates a pack of cigarettes in which parts are embossed with a topography containing a code;

[0053] Figure 27(b) illustrates another example of a cigarette pack in which parts are embossed with a topography Petition 870250088650, dated 09 / 30 / 2025, page 21 / 105 16 / 49 containing code;

[0054] Figure 28 illustrates a box for containing blister packs in which parts are embossed with a topography containing a code;

[0055] Figure 29 illustrates a metal foil packaging for containing a food product, in which parts are embossed with a topography containing a code;

[0056] Figure 30 illustrates a fluid container in which parts are embossed with a topography containing code;

[0057] Figure 31 illustrates examples of beverage capsules with metal sealing foils in which parts are embossed with a topography containing a code;

[0058] Figure 32 illustrates a package with individually wrapped chewing gums, in which metal packaging foils are embossed with a topography containing a code;

[0059] Figure 33 illustrates a reading of the code contained in the topography containing code;

[0060] Figure 34 contains a flowchart illustrating the method of the present invention in a preferred embodiment; and

[0061] Figure 35 contains a flowchart illustrating another aspect of the present invention in a preferred embodiment.

[0062] In addition to the drawings, tables are also included, in which:

[0063] Table 1 illustrates a first logical operation according to the present invention;

[0064] Table 2 illustrates a second logical operation according to the present invention;

[0065] Table 3 illustrates a third logical operation according to the present invention;

[0066] Table 4 illustrates a fourth logical operation according to Petition 870250088650, dated 09 / 30 / 2025, p. 22 / 105 17 / 49 with the present invention;

[0067] Table 5 illustrates a fifth logical operation according to the present invention; and

[0068] Table 6 illustrates a sixth logical operation according to the present invention.

[0069] Equal reference numerals are used in all figures in order to designate equal or similar features. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION Obtaining Raster Code and Raster Images

[0070] Preferred embodiments of the present invention will be described below, and more specifically the method of manufacturing an embossing tool with a code-containing topography. As will become apparent throughout the description, a topography is configured to represent a combination of an image and alphanumeric or graphic information. The topography comprises a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool.

[0071] With reference to Figure 1, a 100 image is taken as a starting point. This could be, for example, a grayscale image with a given bit depth, such as a grayscale between 8 and 16 bits. The 100 image has a given image resolution and is composed of image pixels. The 100 image is provided as an image file (not shown in Figure 1) containing a scan of the image pixels.

[0072] In addition to image 100, Figure 1 also shows an enlarged view 101 of a specific zone 102, in this case, the eye of an animal represented in image 100, showing a grid of individual image pixels 103, each of which may have a di Petition 870250088650, dated 09 / 30 / 2025, p. 23 / 105 18 / 49 different gray level, as illustrated by the different hatching for each gray level.

[0073] The image file corresponding to image 100 undergoes a transformation, for example, a numerical transformation or binarization. As illustrated in Figure 2, in a preferred example of the transformation, each image pixel 200 of image 100 (the image not illustrated in Figure 2) is considered separately and subjected to a step 201, in which, notably, its gray level is compared with a defined gray threshold. In this specific example of gray level evaluation, if, in a case 202, the gray level of the processed image pixel 200 exceeds the defined gray threshold, the pixel state 0 is assigned to image pixel 200, while the pixel state 1 is assigned 203 to image pixel 200 if its gray level is less than or equal to the defined gray threshold.

[0074] Another preferred example of image transformation uses the halftone technique, known in the printing industry and in the image processing software used in the printing industry, in which technique the elements (i.e., the illustrated features, brightness, and contrast) of the image are decomposed into halftone dots, each halftone dot containing a plurality of 1-bit or 0-bit state image pixels.

[0075] For example, an image may have an image resolution of 2000 px / cm or it may be binarized using the halftone technique in order to obtain image points with a spatial frequency of 100 / cm, resulting in image points each containing the same 20 x 20 image pixels of state 1 or 0. According to other preferred embodiments, the image resolution may be 5000 px / cm or even 10000 px / cm.

[0076] The spatial frequency of halftone screening may, for example, vary between 50 / cm and 250 / cm and will be chosen according to Petition 870250088650, dated 09 / 30 / 2025, page 24 / 105 19 / 49 the particularities of image 100: an image with details or narrow lines (for example, branches and leaves, portraits of people, narrow geometric lines) will imply a higher spatial frequency of midtone screening.

[0077] As illustrated in Figure 3, when the transformation is performed on the enlarged view 101, which corresponds to zone 102 illustrated in Figure 1, transformations 303 and 302 will result in two primary 1-bit raster images at image pixels 300 and 301, respectively. The primary raster images of image pixels 300 and 301 each have a corresponding image resolution, not necessarily equal to the image resolution of image 100 (image 100 not shown in Figure 3). As illustrated in Figure 3, the image resolution of the primary raster image of image pixels 300 is greater than the image resolution of the primary raster image of image pixels 301. Coincidentally, the image resolution of the primary raster image of image pixels 300 is equal to the image resolution of the image represented here as the enlarged view 101.The result of the transformation, that is, the respective primary raster image of image pixels 300 and 301 illustrated in Figure 3, comprises a representation of black pixels, that is, those with state 1 of the transformed image.

[0078] That is, Figure 3 shows the enlarged view 101 of Figure Figure 1 illustrates individual image pixels 103 of different shades of gray and two versions of the primary raster image of the image pixels, obtained after transformation, namely, the version represented as the primary raster image of image pixels 300, the other version represented by the primary raster image of image pixels 301; the primary raster image of image pixels containing 1-bit pixels, i.e., pixels that can have the state 0 or 1.

[0079] Each pixel of the primary raster images in the pixels of the image Petition 870250088650, dated 09 / 30 / 2025, page 25 / 105 20 / 49 gem can be referred to by the coordinates / indices men as illustrated in Figure 3.

[0080] Figure 4 shows an example of a raster code of the image pixels 400 representative of and provided for alphanumeric or graphic information, in this case, a monogram illustrated in a thought bubble 405, and examples of enlarged extracts 401 and 404 of the code features 402 of the contiguous pixels in state 1, the contiguous pixels being surrounded by the pixels in state 0, and, more generally, the individual pixels 403 belonging to the raster code of the image pixels 400. The enlarged extracts 401 and 404 have different image resolutions. Each code feature 402, in this example, is a set of two contiguous image pixels in state 1 surrounded by image pixels in state 0, and some code features 402 are emphasized in Figure 4 by a bold line outline for the reader's better understanding.

[0081] Figure 4 illustrates, through enlarged extracts 401 and 404, that the image resolution of the raster code of image pixels 400 can be chosen by having different specific values. However, since the raster code of image pixels 400 must be subsequently combined with a primary raster image of image pixels, the image resolution of the raster code of image pixels 400 must be identical to the resolution of the primary raster image of image pixels.

[0082] Analogously to the coordinates / indices shown in Figure 3, each pixel of the raster code of the image pixels could be referenced by the men coordinates, as illustrated in Figure 4.

[0083] As illustrated in Figure 5, the primary raster image of image pixels 300 and the raster code of image pixels 401 undergo a first logical operation 500 and the result is a Petition 870250088650, dated 09 / 30 / 2025, p. 26 / 105 21 / 49 first raster image of image pixels 501, as indicated by the = sign in the figure. The first logical operation 500 corresponds to a logical operation known as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), where mn are row and column indices with reference to a pixel in the image pixel scan,

[0084] StateOfPixelFrom1stImageRaster (m,n) is the state (1 or 0) of the pixel of the first raster image with coordinates men in that scan,

[0085] StateOfPixelFromPrimaryImageRaster (m,n) is the state (1 or 0) of the primary raster image pixel with coordinates men in that scan, and

[0086] StateOfPixelFromCodeRaster (mn) is the state (1 or =) of the pixel from the raster code with coordinates men in that scan.

[0087] The first logical operation 500 is described in Table 1, in all possible logical combinations, in which the states of the image pixels belonging to the first raster image of image pixels 501 are calculated.

[0088] Figure 5 also shows how to obtain the first raster image of the image pixels 501, according to the rules contained in Table 1, as required for the first logical operation 500, for example, pixel 502 of the primary raster image of the image pixels 300 will have state 1 and a corresponding pixel 503 of the raster image code of the image pixels 401 will also have state 1, which will cause the corresponding pixel 504 of the first raster image of the image pixels 501 to display state 0 in line with the first line of Table 1.

[0089] Next, with reference to Figure 6, based on the raster-type construction of raster images, and using the first raster image Petition 870250088650, dated 09 / 30 / 2025, p. 27 / 105 22 / 49 having two image pixels 501 and the raster code of image pixels 401, a second raster image of image pixels 600 will be computed (as indicated by the = sign in Figure 6), according to a second logical operation 601, according to the rules contained in Table 2. The second logical operation 601 being defined as: StateOfPixelFrom2ndImageRaster (m,n) = NOT( StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFromCodeRaster (m,n)), where m and n are row and column indices with reference to a pixel in the image pixel scan, StateOfPixelFrom2ndImageRaster (m,n) is the state (1 or 0) of the pixel in the second raster image with coordinates men in that scan. StateOfPixelFrom1stImageRaster (m,n) is the state (1 or 0) of the pixel of the first raster image with coordinates men in that scan, and StateOfPixelFromCodeRaster (mn) is the state (1 or 0) of the pixel from the raster code with coordinates men in that scan.

[0090] For example, pixel 504 of the first raster image of image pixels 501 has state 0 and a corresponding pixel 503 of the raster image code of image pixels 401 has state 1, which results in a corresponding pixel 602 of the second raster image of image pixels 600 having state 0 in line with the first row of Table 2.

[0091] As mentioned above, Figure 6 shows the first raster image of the 501 image pixels, and the raster image code of the 401 image pixels, and further illustrates the calculation of the second raster image of the 600 image pixels, according to the rules contained in Table 2, for the execution of the second logical operation 601. Petition 870250088650, dated 09 / 30 / 2025, p. 28 / 105 23 / 49

[0092] Considering the rules of the first logical operation 500 and the second logical operation 601, the raster image code of the pixels of image 401, the first raster image of the pixels of image 501, and the second raster image of the pixels of image 600 are completely adjacent, that is, there is no overlap of the pixels of one raster image of image pixels in another. This overlap will cause the complete set of pixels of the transformed image to be combined with the code.

[0093] Next, with reference to Figure 7, this shows the raster image code of image pixels 401, the first raster image of image pixels 501, the second raster image of image pixels 600, and a raster overlay feature of image pixels 700 that results from the overlay of the three raster images, as indicated by the + and = signs, which makes the raster overlay feature of image pixels 700 viewable as a checksum to verify the coherence of the three raster images, in which each image pixel 701 belongs to only one of the raster image code of image pixels 401, the first raster image of image pixels 501, or the second raster image of image pixels 600.

[0094] Figures 8 to 10 illustrate the application of the first logical operation 500 and the second logical operation 601 to the raster image code of image pixels 402, and the first primary raster image of image pixels 301 having a different image resolution, for example, lower than in the case presented in Figures 5 to 7. Since this aspect has already been described in detail above, the present description will only briefly address the example applied to the lower image resolution.

[0095] In Figure 8, the primary raster of image pixels 301 and the raster code of image pixels 402 go through the first opera. Petition 870250088650, dated 09 / 30 / 2025, p. 29 / 105 24 / 49 logical operation 500 and the result is a first raster image of the image pixels 800 as indicated by the = sign in the figure.

[0096] The first logical operation 500 is described in Table 1, in which the states of the image pixels belonging to the first raster image of the image pixels 800 are calculated.

[0097] Next, with reference to Figure 9, using the first raster image of image pixels 800 and the raster code of image pixels 402, a second raster image of image pixels 900 is computed (as indicated by the = sign in the figure), according to the second logical operation 601, and according to the rules contained in Table 2.

[0098] In this case as well, the raster image code of image pixels 402, the first raster image of image pixels 800, and the second raster image of image pixels 900 are completely adjacent. Next, with reference to Figure 10, it shows the raster image code of image pixels 402, the first raster image of image pixels 800, the second raster image of image pixels 900, and a raster overlay feature of image pixels 1000 that results in the overlay of the three raster images, as indicated by the + and = signs, whereby the raster overlay feature of image pixels 1000 can be seen as a checksum in order to verify the coherence of the three raster images, in which each image pixel belongs to only one of the raster image codes of image pixels, the first raster image of image pixels, or the second raster image of image pixels, similarly to the explanation in Figure 7.

[0099] Following the steps presented in this descriptive report, the present invention also includes the steps relating to projection and recording as described in the recording instructions section below. Petition 870250088650, dated 09 / 30 / 2025, page 30 / 105 25 / 49

[00100] In the recording stage, for each of the above scans, which may also be referred to as relief recording scans, i.e., the raster code of the image pixels, the first raster image of the image pixels, and other image pixel scans, a corresponding individual set of recording instructions will be assigned to the surface structures to be recorded, for example, in an individual orientation of a surface structure.

[00101] Other Aspects and Exemplary Embodiments of the Invention in Obtaining Raster Images

[00102] Starting with the first raster image of the 501 image pixels, determined according to the rules of Table 1, as described above, other exemplary aspects and embodiments of the present invention may be included.

[00103] Using the first raster image of the 501 image pixels, other raster images can be obtained, according to exemplary embodiments of the present invention, through other operations, which, in a more specific way and by way of example, may comprise a translation.

[00104] In a further aspect, a first translation is applied to the first raster image of image pixels 501. With reference to Figure 11(a), the first translation is a translation with a first pair (a, b) of image pixels in the directions of the coordinates (m, n) respectively, thus defining a translation vector, and a third primary raster image of image pixels 1103 will be obtained. For example, the first raster image of image pixels 501 could be translated with one image pixel upwards (a = 0, b = 1), i.e., as illustrated in Figure 11(a), and as suggested by the arrow adjacent to the illustration of a first raster translation 1100. The first translation is generally defined by a first Petition 870250088650, dated 09 / 30 / 2025, p. 31 / 105 26 / 49 translation equation: StateOfPixelOfPrimary3rdImageRaster (m,n) = StateOfPixelFromlstImageRaster (ma,nb) where a and b correspond to the translation vector in the scan, the equation being applied when ma or nb correspond, respectively, to the indices of a pixel within a range of the scan under consideration for the translation. StateOfPixelOfPrimary3rdImageRaster (m,n) is the state (1 or 0) of the pixel starting in the third primary raster image with coordinates men in that scan, and StateOfPixelFrom1stImageRaster (ma,nb) is the state (1 or 0) of the pixel from the first raster images of the image pixels with coordinates ma and nb in that scan.

[00105] As also shown in the example in Figure 11(a), during the translation of an image pixel upwards (a = 0, b = 1), the first translation will add a line 1105 of added image pixels 1106 having a state 0. This will be expressed by the equation StateOfPixelOfPrimary3rdImageRaster (m,n) = 0 if ma or nb correspond, respectively, to the indices of a pixel outside a range of the scan under consideration for the translation.

[00106] At this point, an image pixel may still have state 1 in both the first raster image of image pixels 501 and the third primary raster image of image pixels 1103, which will not be compatible with obtaining the topography containing code. In this case, a rule corresponding to a third logical operation 1101 in order to obtain a third raster image of image pixels 1102 will be defined in Table 3.

[00107] Figure 11(b) shows the raster code of image pixels 401, the first raster image of image pixels 501, the third primary raster image of image pixels 1103, and the third image Petition 870250088650, dated 09 / 30 / 2025, p. 32 / 105 27 / 49 gem raster of image pixels 1102 obtained through the third logical operation 1101 from raster images 401, 501 and 1103, and therefore illustrates the calculation of the third raster image of image pixels 1102 according to the rules contained in Table 3, as indicated by the = sign.

[00108] The third logical operation 1101 is defined as: StateOfPixelFrom3rdImageRaster (m,n) = StateOfPixelFromPrimary3rdImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (m,n) AND StateOfPixelFrom1stImageRaster (m,n) )) StateOfPixelFrom3rdImageRaster (m,n) is the state (1 or 0) of the pixel starting in the third raster image 1102 with coordinates men in that scan.

[00109] Next, with reference to Figure 13(a), it illustrates a fourth logical operation 1301 applied to the raster code of image pixels 401, to the first raster image of image pixels 501 and to the third raster image of image pixels 1102 in order to obtain a fourth raster image of image pixels 1302, according to the rule indicated in Table 4. The underlying fourth logical operation 1301 is defined as: StateOfPixelFrom4thImageRaster (m,n) = NOT( StateOfPixelFromCodeRaster (m,n) OR StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFrom3rdImageRaster (m,n) ) where StateOfPixelFrom4thImageRaster (m,n) is the state (1 or 0) of the pixel starting from the fourth raster image of the 1302 image pixels with coordinates men in that scan.

[00110] Next, with reference to Figure 16(a), it shows the raster image code of image pixels 401, the first raster image of image pixels 501, the third raster image of image pixels 1102, the fourth raster image of image pixels 1302, and a raster overlay feature of image pixels 1601 Petition 870250088650, dated 09 / 30 / 2025, p. 33 / 105 28 / 49 resulting from the overlay of the four raster images, as indicated by the + and = signs, whereby the raster overlay feature of image pixels 1601 can be seen as a checksum in order to verify the consistency of the four raster images, in which each pixel of image 1601 belongs to only one of the raster image codes of image pixels 401, the first raster image of image pixels 501, the third raster image of image pixels 1102, or the fourth raster image of image pixels 1302.

[00111] In a preferred embodiment illustrated in Figures 12(a) and 12(b), a second translation is applied to the first raster image of image pixels 501. With reference to Figure 12(a), the second translation is a translation with a second pair (a, b) of image pixels in the directions of the coordinates (m, n) respectively, therefore defining a second translation vector, and a fifth primary raster image of image pixels 1203 will be obtained. For example, the first raster image of image pixels 501 could be translated with one image pixel to the side (a = 1, b = 0), i.e., as illustrated in Figure 12(a), and as suggested by the arrow adjacent to the illustration of a second translation scan 1200. The second translation is generally defined by a second translation equation: StateOfPixelOfPrimary5thImageRaster (m,n) = StateOfPixelFrom1stImageRaster (ma,nb) aeb corresponding to the vector of the second translation in the scan, the equation being applied when ma or nb correspond, respectively, to the indices of a pixel within a range of the scan under consideration for the translation, StateOfPixelOfPrimary5thImageRaster (m,n) is the state (1 Petition 870250088650, dated 09 / 30 / 2025, p. 34 / 105 29 / 49 or 0) of the pixel from the fifth primary raster image with the coordinates men in that scan.

[00112] As also shown in the example in Figure 12(a), during the translation of an image pixel to the side (a = 1, b = 0), the second translation adds a column 1205 of added image pixels 1206 having a state 0. This is expressed by StateOfPixelOfPrimary5thImageRaster (m,n) = 0 if ma or nb correspond, respectively, to the indices of a pixel outside a range of the scan under consideration for the translation.

[00113] Next, with reference to Figure 12(b), at this point, an image pixel may still have state 1 in both the third raster image of image pixels 1102 and the fifth primary raster image of image pixels 1203, which will not be compatible with obtaining the topography containing code. In this case, a rule corresponding to a fifth logical operation 1201 in order to obtain a fifth raster image of image pixels 1204 will be defined as can be seen in Table 5 and from the combination of raster images illustrated in Figure 12(b).

[00114] Next, with reference to Figure 13(b), it illustrates a sixth logical operation 1303 applied to the raster code of image pixels 401, to the first raster image of image pixels 501, to the third raster image of image pixels 1102 and to the fifth raster image of image pixels 1204, according to the rules in Table 6, in order to obtain a sixth raster image of image pixels 1304, according to the rules also derivable from Figure 13(b).

[00115] Next, with reference to Figure 16(b), it shows the raster image code of image pixels 401, the first raster image of image pixels 501, the third raster image of image pixels 1102, the fifth raster image of image pixels 1204, the sixth raster image of image pixels 1304, and a feature Petition 870250088650, dated 09 / 30 / 2025, p. 35 / 105 30 / 49 of raster overlay of image pixels 1602 resulting from the overlay of the five raster images, as indicated by the + and = signs, whereby the raster overlay feature of image pixels 1602 can be seen as the checksum in order to verify the consistency of the five raster images, in which each image pixel 1602 belongs to only one of the raster image codes of image pixels 401, the first raster image of image pixels 501, the third raster image of image pixels 1102, the fifth raster image of image pixels 1204, or the sixth raster image of image pixels 1304.

[00116] According to a general rule, apply at least one other translation and at least one additional logical operation in order to obtain a (2i+1)-nth raster image of the image pixels and a (2i+2)-nth raster image of the image pixels by applying a general rule as follows, where i corresponds to the number of an i-th iteration.

[00117] After an i-th translation (according to a vector (ai, bi)) of the first raster image of image pixels 501, a (2i+1)nth primary raster image of image pixels will be obtained as a result. At this point, an image pixel may still have state 1 in both the (2i-1)-nth raster image of image pixels and the (2i+1)-nth primary raster image of image pixels, which is not compatible with obtaining the topography containing code.

[00118] In this case, a rule corresponding to a (2i+1)nth logical operation, in order to obtain a (2i+1)-nth raster image of the image pixels, will be defined according to the rule illustrated in Figure 14: An image pixel (m, n) from the (2i+1)-nth raster image of image pixels is selected as shown in the box. Petition 870250088650, dated 09 / 30 / 2025, p. 36 / 105 31 / 49 1400; and then its state is determined to be 1 — (box 1401) if the corresponding image pixel (m, n) of the primary (2i+1)-nth image raster image of the image pixels is determined to be state 1, as shown in box 1402, and if all other corresponding image pixels (m, n) of the raster code of image pixels 401, of the first raster image of image pixels 501, of the third raster image of image pixels 1102, of the fifth raster image of image pixels 1304, and even the entire (2i-1)-nth image raster image of image pixels are determined to be 0, as shown in box 1403; and — (box 1404) in all other cases.

[00119] Finally, using the raster code of image pixels 401, the first raster image of image pixels 501, the third raster image of image pixels 1102, the fifth raster image of image pixels 1304, and even the entire (2i+1)-nth raster image of image pixels, a (2i+2)-nth raster image of image pixels is computed according to the following rule, also with reference to Figure 15: An image pixel (m, n) from the (2i+2)-nth raster image of image pixels is selected as shown in box 1502; and then its state is determined to be — (box 1504) if all corresponding image pixels (m, n) of raster code of image pixels 401, the first raster image of image pixels 501, the third raster image of image pixels 1102, the fifth raster image of image pixels 1304, and even all Petition 870250088650, dated 09 / 30 / 2025, p. 37 / 105 32 / 49 (2i-1)-nth raster image of image pixels, are determined as 0, as shown in box 1503; and — (box 1505) in all other cases.

[00120] The overlay feature, or checksum as indicated in some of the figures above, is only for the purpose of a better understanding of the nature of the raster code of image pixels, the first raster image of image pixels, and other image pixel scans in general, but it has no technical function in the manufacture of an embossing tool. Instead, it is the raster code of image pixels, the first raster image of image pixels, and other image pixel scans in general that will be used in the manufacturing process of an embossing tool.

[00121] Following the steps described in this item, the present invention also includes the steps relating to projection and recording, as described in the Recording Instructions section below in this document.

[00122] In the recording stage, for each of the scans that can also be designated as relief recording scans, i.e., the raster code of the image pixels, the first raster image of the image pixels, and other image pixel scans, a corresponding individual set of recording instructions will be assigned to the surface structures to be recorded, for example, an individual orientation of a surface structure. Recording Instructions

[00123] After obtaining the raster code of the image pixels, and all other image pixel scans depending on the case of logical operations and translations, these comprise, respectively, pixels of bit depth 1, such that, for each Petition 870250088650, dated 09 / 30 / 2025, page 38 / 105 33 / 49 scan, a pixel state 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the embossing tool surface corresponding to an image pixel position (m, n) in the scan, while a pixel state 0 indicates that no specific raster surface structure for that scan should be planned in the topography for another location on the embossing tool surface corresponding to another image pixel position in the scan.

[00124] The raster code of the image pixels, the first raster image of the image pixels, and other image pixel scans, depending on the case, are projected onto the surface of the embossing tool in order to obtain the topographic raster of the locations on the surface of the embossing tool for specific raster surface structures. This is illustrated in Figure 26, in which the relationship between the embossing scans 2600 and a side surface of the embossing tool 2601 of the embossing tool 2602 to be engraved is shown. The embossing scans 2600 may, for example, comprise the raster code, the first raster image of the image pixels, and the second image pixel scan calculated by the computing means 2607.Several pixels having the state 1 as such, for example, a, b, and c, are projected onto the surface of the embossing tool by means of a computer 2603 in order to obtain the topographic raster of the locations on the surface of the embossing tool for specific surface raster structures (the topographic raster of the locations not illustrated). The topographic raster of the locations is then used by the computer 2603 to control the engraving, for example, by means of a laser 2604 as appropriate, positioning the laser 2604 so as to focus its laser beam on the surface of the tool. Petition 870250088650, dated 09 / 30 / 2025, page 39 / 105 34 / 49 relief engraving tool 2601 such that specific raster surface structures are engraved at their respective locations and, in this way, obtain the topography containing code 2605. This topography comprises, for example, surface structures corresponding to scan locations a, b, and c. The relief engraving tool 2602 can, as illustrated in the example in Figure 26, also be rotated as controlled by the computer 2603 or by a drive motor 2606 to achieve relative positioning between the locations of the relief engraving tool surface 2601 and the engraving laser 2604.

[00125] After the specific surface raster structures are engraved on the surface of the embossing tool 2601 in their respective locations obtained according to the projection, the topography containing code 2605 will then be obtained.

[00126] Specific raster surface structures can be associated with recording parameters to be implemented at the time of recording, including, for example, an orientation, a spacing with respect to a neighboring surface structure, a dimension, a lateral dimension, and a height of the surface structure. Other Preferred Options

[00127] Before engraving, the embossing tool may undergo mechanical preparation (e.g., turning, grinding, fine grinding), which should preferably include a polishing process. Through mechanical polishing (e.g., with diamond polishing bands and / or aqueous suspensions containing diamond and pastes of various types), preferably producing surface roughness values ​​Ra below 50 nm, more preferably below 20 nm, the surface of the embossing tool is prepared to accommodate structures (e.g., ra Petition 870250088650, dated 09 / 30 / 2025, page 40 / 105 35 / 49 inches) with heights below 500 nm, for example, 200 nm.

[00128] In a preferred embodiment, for illustrative purposes, for an image resolution of 2000 px / cm, an image pixel will, in this case, have a side dimension of 5 pm, while for an image resolution of 250 px / cm, the image pixel will have a side dimension of 40 pm. In the case of a 1:1 projection of the raster images onto the surface of the embossing tool, a raster cell will have a side dimension of 5 pm, as in the previous case, and 40 pm, as in the subsequent case.

[00129] In the first case of a 5 pm x 5 pm raster cell, still according to this embodiment and according to a corresponding set of engraving instructions, the raster cell on the surface of the embossing tool can be engraved with a grid of grooves (for example, five lines 0.5 pm wide with a pitch of 1 pm). Still according to another example from the set of engraving instructions, the entire surface of the raster cell is engraved with a homogeneous depth of 3 pm.

[00130] In the other case of the 40 pm x 40 pm raster cell, still according to this embodiment and according to corresponding sets of engraving instructions, the raster cell on the surface of the embossing tool may be engraved with a grid of grooves (of, for example, five lines of 4 pm width with a pitch of 8 pm), or with hemispheres (of, for example, a radius of 10 pm with a pitch of 20 pm), or the entire surface of the raster cell will be engraved with a homogeneous depth of 25 pm.

[00131] In a preferred additional embodiment, for an image resolution of 200 px / cm, the image pixel will have a side dimension of 50 pm, which, in the case of 1:1 projection of raster images onto the surface of the embossing tool, will produce a raster cell with a side dimension of 50 pm. Petition 870250088650, dated 09 / 30 / 2025, page 41 / 105 36 / 49

[00132] According to this embodiment and a corresponding set of recording instructions, the plurality of raster cells obtained after projecting the image pixels of the raster code of the image pixels and of all raster images onto the image pixels on the surface of the embossing tool to be manufactured are engraved with homogeneous depths (between, for example, 0 pm and 50 pm), so that a corresponding set of recording instructions can provide a certain recording depth for each projection of the aforementioned raster code and raster images.

[00133] In a further example of this embodiment with 50 pm x 50 pm raster cells, a set of recording instructions provides at least one projection of the raster code of the image pixels and of all raster images onto the image pixels to be recorded with a depth gradient between 40 pm and 10 pm, i.e., as a truncated cube with a base of 50 pm x 50 pm. Surface Structures

[00134] As already indicated, the embossing tool to be manufactured with a code-containing topography may have a topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution. The topographic raster is the result of the step of projecting the image pixels of the various previously obtained raster images, according to which the raster cell will be the result of projecting an image pixel onto the surface of the embossing tool to be manufactured, and according to which each of the various raster images will be indicative of a specific type of surface structure to be planned in locations on the surface of the embossing tool.

[00135] Next, with reference to Figure 17, this figure represents Petition 870250088650, dated 09 / 30 / 2025, page 42 / 105 Figure 37 / 49 schematically depicts a topographic raster 1700 with raster cells, for example, 1701, 1702, 1703, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, whereby each type of surface structure will correspond to a raster image of the image pixels (e.g., a raster code, a first raster image, ...) not illustrated in Figure 17. The surface structures 1704, 1705, and 1706 corresponding to the raster cells 1701, 1702, 1703, respectively, may be different from each other, thus clearly indicating that they originate from different raster images of the image pixels. In the present example, surface structures 1704, 1705, and 1706 are diffractive lattice structures with different directions depending on the raster image from which their plans originate.

[00136] Next, with reference to Figure 18, it schematically represents another topographic raster 1800 with raster cells, for example, 1801, 1802, 1803, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, whereby each type of surface structure will correspond to a raster image of the image pixels not illustrated in Figure 18. The surface structures 1804, 1805, and 1806 corresponding to the raster cells 1801, 1802, 1803, respectively, may be different from each other, thus clearly indicating that they originate from different raster images of the image pixels.In the present example, surface structures 1804 and 1806 are diffractive lattice structures with different directions depending on the raster image from which their plans originate, while surface structure 1805 corresponds to an unrecorded surface represented as a white surface, depending on what, in this context, the surface... Petition 870250088650, dated 09 / 30 / 2025, page 43 / 105 38 / 49 not engraved will correspond to the original tool surface which can be polished.

[00137] Figure 19(a) schematically represents an embossing tool in the form of a first roller 1900 configured to rotate around a first axis 1902, and comprising at one end a toothed wheel 1901 to be used to drive the first roller 1900. A first embossing tool surface 1903 is configured to be engraved with surface structures (not illustrated).

[00138] Figure 19(b) schematically represents another embossing tool in the form of a second roller 1904 configured to be driven via its second shaft 1905. A second embossing tool surface 1906 is configured to be engraved with surface structures (not shown).

[00139] Figure 20 schematically represents an embossing configuration comprising two embossing rollers 2000 and 2001 that collaborate to emboss a sheet material 2002 inserted in a contact area 2003. The embossing roller 2000 may be driven by a belt along the belt 2004. Alternatively, the drive system may include toothed wheels 2010 at the ends 2011 of the embossing rollers 2000 and 2001, allowing roller 2000 to rotate roller 2001. The embossing roller 2000 is manufactured according to the manufacturing method of an embossing tool with a code-containing topography as described in the different embodiments mentioned above, and comprises, embossed on an embossing tool surface 2005, specific raster surface structures according to the code-containing topography. 2006. As a result of the embossing of the material of Petition 870250088650, dated 09 / 30 / 2025, page 44 / 105 39 / 49 sheet 2002, a topography containing embossed code 2007 is engraved, in which surface structures embossed 2008 are found as illustrated in the enlarged view 2009.

[00140] Next, with reference to Figure 21, it schematically represents a topographic raster 2100 with raster cells, for example, 2101, 2102, 2103, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, whereby each type of surface structure will correspond to a raster image of the image pixels (for example, a raster code, a first raster image, ...) not illustrated in Figure 21. The surface structures 2104, 2105, and 2106 that correspond to the raster cells 2101, 2102, 2103, respectively, may be different from each other, thus clearly indicating that they originate from different raster images of the image pixels. In the present example, surface structures 2104, 2105, and 2106 are grid structures with triangular cross-sections, and have different directions depending on the raster image from which their plans originate.

[00141] Next, with reference to Figure 22, it schematically represents another topographic raster 2200 with raster cells, for example, 2201, 2202, 2203, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, whereby each type of surface structure will correspond to a raster image of the image pixels not illustrated in Figure 22. The surface structures 2204, 2205, and 2206, which correspond to the raster cells 2201, 2202, 2203, respectively, may be different from each other, thus clearly indicating that they originate from different raster images of the image pixels. In the present example, the surface structures 2204 and 2206 are grid structures with sections. Petition 870250088650, dated 09 / 30 / 2025, p. 45 / 105 40 / 49 triangular crossbars, and have different directions depending on the raster image from which their plans originate, while surface structure 2205 corresponds to an unengraved surface represented as a white surface, whereby, in this context, the unengraved surface will correspond to the original tool surface that can be polished.

[00142] Next, with reference to Figure 23, it schematically represents a topographic raster 2300 with raster cells, for example, 2301, 2302, 2303, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, whereby each type of surface structure will correspond to a raster image of the image pixels (for example, a raster code, a first raster image, ...) not illustrated in Figure 23. The surface structures 2304, 2305, and 2306 that correspond to the raster cells 2301, 2302, 2303, respectively, may be different from each other, thus clearly indicating that they originate from different raster images of the image pixels.In this example, surface structures 2304, 2305, and 2306 are spherical structures with different sizes and alignments on the surface depending on the raster image from which their plans originate.

[00143] Next, with reference to Figure 24, it schematically represents a topographic raster 2400 with raster cells, for example, 2401, 2402, 2403, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, depending on which each type of surface structure will correspond to a raster image of the image pixels (for example, a raster code, a first raster image, etc.) not illustrated in Figure 24. The surface structures 2404, 2405, and 2406 corresponding to the raster cells 2401, 2402, 2403, respectively Petition 870250088650, dated 09 / 30 / 2025, page 46 / 105 41 / 49 Indeed, they may differ from one another, thus clearly indicating that they originate from different raster images of the image pixels. In the present example, surface structures 2404 and 2406 are three-dimensional triangular structures of different sizes and orientations on the surface depending on the raster image from which their plans originate, while surface structure 2405 corresponds to an unengraved surface represented as a white surface, in which case, in this context, the unengraved surface will correspond to the original tool surface that can be polished. Another numerical reference 2407 designates a group of four raster cells 2408, each of which contains a surface structure different from the other three surface structures.

[00144] Next, with reference to Figure 25, it schematically represents a topographic raster 2500 with raster cells, for example, 2501, 2502, 2503, which indicate a type of surface structure to be engraved at a position (x, y) on the surface of the embossing tool, whereby each type of surface structure will correspond to a raster image of the image pixels (for example, a raster code, a first raster image, ...) not illustrated in Figure 25. The surface structures 2504, 2505, and 2506 corresponding to the raster cells 2501, 2502, 2503, respectively, may be different from each other, thus clearly indicating that they originate from different raster images of the image pixels.In the present example, surface structures 2504 and 2506 are three-dimensional rectangular structures of different sizes and orientations on the surface depending on the raster image from which their plans originate, with surface structure 2504 appearing above a base level of the topographic raster it correlates with. Petition 870250088650, dated 09 / 30 / 2025, page 47 / 105 42 / 49 points to side 2509 of the surface structure, surface structure 2506 penetrating below the base level of the topographic raster, while surface structure 2505 corresponds to a polished surface represented as a white surface. Another numerical reference 2507 designates a group of four raster cells 2508, each containing a surface structure different from the other three surface structures. Overview of the Manufacturing Method for an Embossing Tool

[00145] The manufacturing method of an embossing tool is described in its individual steps and modalities in the items described above.

[00146] Next, with reference to Figure 34, it illustrates a flowchart of the manufacturing method of an embossing tool with a code-containing topography according to an embodiment of the present invention, whereby the topography is configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool.

[00147] The method begins with image 3400, which is subjected to a step to provide 3401 an image file 3402 of image 3400 containing a raster of image pixels with a given bit depth and an initial image resolution. The image file 3402 is transformed 3403 into a primary raster of image pixels 3404 with the given resolution, where the bit depth of an image pixel in the primary raster of image pixels 3404 is 1. An alphanumeric or graphical information 3405 is transmitted to a step to provide 3406 a raster code 3407 Petition 870250088650, dated 09 / 30 / 2025, page 48 / 105 43 / 49 of image pixels, the raster code being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by the pixels in state 0. A first logical operation 3408 is applied in order to combine the raster code of image pixels 3407 and the primary raster of image pixels 3404 in order to obtain a first raster image of image pixels 3409 as a result. The first logical operation 3408 is as defined in the items described above in this descriptive report. A second logical operation 3410 is applied in order to combine the first raster image of image pixels 3409 and the raster code of image pixels 3407 in order to obtain a second raster image of image pixels 3411. The second logical operation 3410 is as defined in the items described above in this descriptive report.The following is a step of projecting 3412 the raster code of the image pixels 3407, the first raster image of the image pixels 3409 and the second raster image of the image pixels 3411 onto the surface of the embossing tool in order to obtain the topographic raster of the locations on the surface of the embossing tool for the specific raster surface structures, the projection step being as defined in the items described above in this descriptive report. Finally, the specific raster surface structures are engraved 3413 onto the surface of the embossing tool 3414 in their respective locations obtained and, in this way, obtain the topography containing the code.

[00148] Next, with reference to Figure 35, it illustrates a flowchart of the method, according to another aspect of the present invention, for manufacturing an embossing tool with a code-containing topography, whereby the topography is configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a Petition 870250088650, dated 09 / 30 / 2025, page 49 / 105 44 / 49 plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the relief engraving tool.

[00149] Similar to Figure 34, the method begins with image 3400, which is subjected to the step of providing 3401 the image file 3402 of image 3400 containing the raster of the image pixels with a given bit depth and an initial image resolution. The image file 3402 is transformed 3403 into the primary raster of the image pixels 3404 with the given resolution, where the bit depth of an image pixel in the primary raster of the image pixels 3404 is 1. The alphanumeric or graphic information 3405 is transmitted to the step of providing 3406 the raster code 3407 of the image pixels, the raster code being constructed from the code characteristics of the contiguous pixels in state 1, the contiguous pixels being surrounded by the pixels in state 0.The first logical operation 3408 is applied to combine the raster code of image pixels 3407 and the primary raster of image pixels 3404 in order to obtain the first raster image of image pixels 3409 as a result. The first logical operation 3408 is as defined in the items described above in this descriptive report. Then, a first translation 3500 is applied to the first raster image of image pixels 3409 in order to obtain a third primary raster image of image pixels 3501, whereby the first translation will be as defined in the items described above in this descriptive report.Next, a third logical operation 3502 is applied in order to combine the raster code of image pixels 3407, the first scan of image pixels 3409 and the third primary raster image of image pixels 3501 in order to obtain a third scan of image pixels 3503, based on which the third logical operation 3502 will be as follows. Petition 870250088650, dated 09 / 30 / 2025, p. 50 / 105 45 / 49 defined in the items described above in this descriptive report. Next, a fourth logical operation 3504 is applied in order to combine the raster code of image pixels 3407, the first scan of image pixels 3409 and the third raster image of image pixels 3503 in order to obtain a fourth scan of image pixels 3505, whereby the fourth logical operation 3504 will be as defined in the items described above in this descriptive report.The following is a step of projecting 3506 the raster code of the image pixels 3407, the first raster image of the image pixels 3409, the third raster image of the image pixels 3503 and the fourth raster image of the image pixels 3505 onto the surface of the embossing tool in order to obtain the topographic raster of the locations on the surface of the embossing tool for the specific raster surface structures, depending on which the projecting step will be as defined in the items described above in this descriptive report. Finally, the specific raster surface structures are engraved 3507 onto the surface of the embossing tool 3508 in their respective locations obtained and, in this way, obtain the topography containing code. Use of the Invention

[00150] Possible uses of the present invention as described in this descriptive report are shown in the illustration of the engraved article in Figures 27 to 33. The term "use of the invention" refers, in this case, to products that have been embossed using the embossing tool manufactured according to the present invention.

[00151] Figure 27(a) illustrates a cigarette pack 2700 comprising a box 2701 and an inner liner 2702 embossed with the topography containing the code. In this example, a lid 2703 initially part of the inner liner 2702 is partially opened, which makes Petition 870250088650, dated 09 / 30 / 2025, page 51 / 105 46 / 49 so that a part 2704 of the topography containing code is separated from a whole of the topography containing code engraved in relief.

[00152] Figure 27(b) illustrates another cigarette pack 2705 comprising a box 2706, the visible outer surface of which is embossed with the topography containing the code. The other cigarette pack 2705 also comprises an inner liner 2707.

[00153] Figure 28 illustrates a box 2800, whose visible external surface is embossed with the topography containing the code. The box 2800 is configured as a package for a plurality of blister trays 2801 in which, for example, pills or chewing gum may be packaged and covered by a packaging film used in blister-type packaging embossed with the topography containing the code.

[00154] Figure 29 illustrates a metal foil packaging 2900 for containing, for example, a chocolate product or bakery product, whose visible external surface 2901 is embossed with the topography containing the code.

[00155] Figure 30 illustrates an example of a fluid container 3000 that can be used to contain a drinkable fluid product, the container having a portion of the visible external surface 3001 embossed with the topography containing the code.

[00156] Figure 31 illustrates a plurality of examples of powder capsules that can typically be used for coffee, chocolate or tea products, and are sealed by a metal foil embossed with the topography containing the code.

[00157] Figure 32(a) represents a package of 3000 individually wrapped chewing gum bars 3201.

[00158] Figure 32(b) depicts one of the chewing gum bars 3201 and a partially opened / unfolded aluminum foil wrapper 3202 revealing the chewing gum bar inside. The wrapper Petition 870250088650, dated 09 / 30 / 2025, p. 52 / 105 47 / 49 aluminum foil 3202 comprises on its visible outer surface an embossed engraving of the topography containing a code.

[00159] Figure 33 illustrates a reading of the code contained in the embossed code on the metal foil covering the blister pack 2801. The code is not visible to the naked eye on the metal foil, which is why it does not appear on the metal foil illustrated in Figure 33. A digital reading device, for example, a smartphone 3300, could be configured with reading or decoding software (not shown) that analyzes a light image reflected from the metal foil to the camera lens 3302 of the smartphone 3300, and possibly displays information related to the code 3301 contained in the embossed code on a screen of the smartphone 3300, in this case, a monogram representing the letter B. Glossary of Technical Terms

[00160] Transfer: any aspect including, for example, forming, printing, molding, manufacturing, pressing, and embossing on a substrate, of at least one three-dimensional topographic element formed in a solid piece;

[00161] Metal sheet: designates a sheet of metal, a sheet of polymer, paper, laminated or hybrid paper, cardboard, or other thin sheet product, raw or coated with curable varnish;

[00162] Roller: a tool characterized by a cylindrical symmetry, and dimensions of, for example, a length < 5 m, and a diameter < 1 m, profiled with surface structures on its lateral surface;

[00163] Structure(s): topographic feature of the surface that projects from an average surface, for example, the average surface of an embossing tool, having certain lateral dimensions and a certain height size between 0.1 pm and 1 mm, to be embossed on a metal sheet; Petition 870250088650, dated 09 / 30 / 2025, page 53 / 105 48 / 49

[00164] Embossing: the process of transferring structures from at least one roller or tool to a metal sheet, a fluid or viscous solid substrate, or to another solid piece;

[00165] Relief engraving tool: a piece of material with surface structures on at least one surface, the material being, for example, metal, ceramic, in bulk or in layer form, and for transferring its surface structure to another material by relief engraving;

[00166] Polished material surface: a surface that does not comprise any type of microstructure, and can be considered substantially flat when viewed with a plate-type embossing tool, or as part of a cylindrical surface when viewed with a roller-type embossing tool; preferably, the roughness (Ra) of a polished surface being less than 50 nm;

[00167] Image: a work of art of a substantially graphic type, which may (but is not limited to): (i) represent a scene (for example, a portrait, a landscape, material objects) taken from a material environment, (ii) illustrate a graphic output of a computer device or software, (iii) show the output of a hand-painted or hand-drawn picture;

[00168] Image file: a raster-type numerical transcription of an image, in the form of a computer file containing numerical values ​​arranged according to a specific format;

[00169] Image pixel: the smallest addressable element of an image file, which can still be modified through software, and to which specific values ​​(e.g., geometric shape, side size, color) can be assigned;

[00170] Image resolution: the ratio between the total number of pixels and the lateral dimension assigned to an image; typical values ​​can range from 100 to 3000 pixels / cm; Petition 870250088650, dated 09 / 30 / 2025, p. 54 / 105 49 / 49

[00171] Raster image: a distinct set of raster image pixels belonging to an image file;

[00172] Raster image resolution: the specific image resolution corresponding to a raster image;

[00173] Code: information, such as a sequence of alphanumeric characters or an image, to possibly be integrated into a topography containing code;

[00174] Encoding algorithm: a specific operation that transcribes a code into a corresponding image pixel raster code;

[00175] Code reading: a specific process of retrieving information containing codes from an embossed material bearing a topography containing embossed code;

[00176] Code file: a computer file containing the numerical values ​​corresponding to the positions in a code image of the traces of a hidden code, arranged according to a specific format;

[00177] Raster code: the set of image pixels including all image pixels located in the image file at the positions of the code features;

[00178] Orientation: a preferred direction along which a family of substantially parallel grid-like structures is oriented; the orientation being referred to as a chosen geometric axis, for example, the axis of symmetry in the case of a roll;

[00179] Embossing: any type including, for example, engraving, milling, chemical etching or plasma etching, laser ablation process for producing structures on a polished material surface. Petition 870250088650, dated 09 / 30 / 2025, page 55 / 105

Claims

1 / 11 CLAIMS 1. A method for manufacturing an embossing tool with a code-containing topography, whereby the topography is configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool, characterized in that it comprises: providing an image file containing an image pixel raster with a given bit depth and an initial image resolution, transforming the image file (100, 101) into a primary image pixel raster (300, 301) with the given resolution, wherein the bit depth of an image pixel in the primary image pixel raster is 1, providing an image pixel raster code for the alphanumeric or graphic information,with a bit depth of 1 and with the given resolution, the raster code being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by the pixels in state 0, - apply a first logical operation (500) to combine the raster code of the image pixels (400, 401, 402) and the primary raster of the image pixels (300, 301) in order to obtain a first raster image of the image pixels (501) as a result, whereby the first logical operation (500) is defined as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), where men are row and column indices with reference to a pixel in the image pixel scan, Petition 870250088650, of 30 / 09 / 2025, p. 56 / 105 2 / 11 - apply a second logical operation (601) to combine the first raster image of the image pixels (501) and the raster code of the image pixels (400, 401,402) in order to obtain a second raster image of the image pixels (600), whereby the second logical operation (601) is defined as: StateOfPixelFrom2ndImageRaster (m,n) = NOT( StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFromCodeRaster (m,n) ), wherein the raster code of the image pixels, the first raster image of the image pixels and the second raster image of the image pixels comprise, respectively, pixels of bit depth 1, wherein, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan must be planned in the topography for a location on the embossing tool surface corresponding to a position (m,n) of the image pixel in the scan,While a pixel state of 0 indicates that no specific raster surface structure for that scan should be projected onto the topography for another location on the embossing tool surface corresponding to another image pixel position in the scan, - project the raster code of the image pixels, the first raster image of the image pixels and the second raster image of the image pixels onto the embossing tool surface in order to obtain the topographic raster of the locations on the embossing tool surface for the specific raster surface structures, and - emboss the specific raster surface structures onto the embossing tool surface in their respective locations obtained and, in this way, obtain the topography containing code.

2. Method for manufacturing an embossing tool with a code-containing topography, the topography being configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool, characterized in that it comprises: providing an image file containing an image pixel raster with a given bit depth and an initial image resolution, transforming the image file (100, 101) into a primary image pixel raster (300, 301) with the given resolution, wherein the bit depth of an image pixel in the primary image pixel raster is 1, providing an image pixel raster code for the alphanumeric or graphic information,With a bit depth of 1 and a given resolution, the raster code being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by the pixels in state 0, apply a first logical operation (500) to combine the raster code of image pixels (400, 401, 402) and the primary raster of image pixels (300, 301) in order to obtain a first raster image of image pixels (501) as a result, whereby the first logical operation (500) is defined as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), where men are row and column indices with reference to a pixel in the image pixel scan, apply a first translation to the first raster image of image pixels (501) in order to obtain a third primary raster image Petition 870250088650, dated 09 / 30 / 2025, page 58 / 105 4 / 11 of the image pixels (1103),Based on the fact that the first translation is defined by a first translation equation: StateOfPixelOfPrimary3rdImageRaster (m,n) = StateOfPixelFrom1stImageRaster (ma,nb) where a and b correspond to a translation vector in the scan, the first translation equation being applied when ma or nb correspond, respectively, to the indices of a pixel within a range of the scan under consideration for the first translation, and StateOfPixelOfPrimary3rdImageRaster (m,n) = 0 if ma or nb correspond, respectively, to the indices of a pixel outside a range of the scan under consideration for the translation, apply a third logical operation (1101) to combine the raster code of the image pixels (401), the first scan of the image pixels (501) and the third primary raster image of the image pixels (1103) in order to obtain a third scan of the image pixels (1102), based on the fact that the third logical operation (1101) is defined like: StateOfPixelFrom3rdImageRaster(m,n) = StateOfPixelFromPrimary3rdImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) AND StateOfPixelFrom1stImageRaster (m,n) )) apply a fourth logical operation (1301) to combine the raster code of the image pixels (401), the first scan of the image pixels (501) and the third raster image of the image pixels (1102) in order to obtain a fourth scan of the image pixels (1302), whereby the fourth logical operation (1302) is defined as: StateOfPixelFrom4thImageRaster (m,n) = NOT( StateOfPixelFromCodeRaster (m,n) OR StateOfPixelFrom1stImageRaster (m,n) Petition 870250088650, dated 09 / 30 / 2025, page 59 / 105 5 / 11 OR StateOfPixelFrom3rdImageRaster (m,n) ) in which the raster code of the image pixels (401), the first raster image of the image pixels (501), the third scan of the image pixels (1102) and the fourth raster image of the image pixels (1302) comprise, respectively, pixels of bit depth 1, such that, for each scan,A pixel state of 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the embossing tool surface corresponding to an image pixel position (m,n) in the scan, while a pixel state of 0 indicates that no specific raster surface structure for that scan should be planned in the topography for another location on the embossing tool surface corresponding to another image pixel position in the scan. Project the raster code of the image pixels, the first raster image of the image pixels, the third raster image of the image pixels, and the fourth raster image of the image pixels onto the embossing tool surface in order to obtain the topographic raster of the locations on the embossing tool surface for the specific raster surface structures.and record specific raster surface structures onto the recording tool surface in their respective locations, thereby obtaining the topography containing the code.

3. Method, according to claim 2, characterized in that it further comprises, after the first translation, at least the steps of: applying at least one additional translation and at least one additional logical operation in order to obtain a (2i+1)-nth raster image of the image pixels and a (2i+2)-nth raster image of the image pixels by applying a general rule as follows, in which Petition 870250088650, dated 09 / 30 / 2025, p. 60 / 105 6 / 11 i corresponds to the number of the i-th iteration: StateOfPixelFrom(2i+1)ImageRaster (m,n) = StateOfPixelFromPrimary(2i+1)ImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) AND StateOfPixelFrom1stImageRaster (m,n) AND StateOfPixelFrom3rdImageRaster (m,n) AND ... AND StateOfPixelFrom(2i1)ImageRaster (m,n) )) the additional logical operation being defined by: StateOfPixelFrom(2i+2)ImageRaster (m,n) = NOT( StateOfPixelFromCodeRaster (m,n) OR StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFrom3rdImageRaster (m,n) OR . OR StateOfPixelFrom(2i+21)ImageRaster (m,n) ) as a function of which all image pixel scans comprise, respectively, pixels of bit depth 1, where, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan should be planned in the topography for a location on the embossing tool surface corresponding to a position (m,n) of the image pixel in the scan, while a pixel state 0 indicates that no specific raster surface structure for that scan should be planned in the topography for another location on the embossing tool surface corresponding to another position of the image pixel in the scan,To project all image pixel scans onto the surface of the embossing tool in order to obtain the topographic raster of the locations on the surface of the embossing tool for specific raster surface structures, and to emboss the specific raster surface structures onto the surface of the embossing tool at their respective locations, thereby obtaining the topography containing code.

4. Method, according to any of the claims in Petition 870250088650, dated 09 / 30 / 2025, page 61 / 105 7 / 11 1 to 3, characterized in that: the embossing tool with a topography containing code is a roller provided with a vacuum deposition coating of a thickness between 0.5 µm and 10 µm, exhibiting a hardness of 0.5 GPa to 5.0 GPa.

5. A method, according to any one of claims 1 to 3, characterized in that: the embossing on the surface of the embossing tool occurs by means of any of the techniques listed in the following list: direct focus of at least one laser beam onto the surface of the embossing tool, mask projection onto the surface of the embossing tool, chemical engraving or plasma engraving, fine grinding or milling.

6. A method, according to any one of claims 1 to 3, characterized in that: code information engraved on surfaces using the embossing tool with a code-containing topography is readable and decodable with a decoding device.

7. A method, according to any one of claims 1 to 3, characterized in that: code information engraved on surfaces using the embossing tool with a code-containing topography is readable and decodable only at a specific viewing angle, obtained through a specific orientation of the surface structures specific to the raster code.

8. Method, according to any of the preceding claims, characterized in that: Petition 870250088650, dated 09 / 30 / 2025, page 62 / 105 8 / 11 the specific surface raster structures have a lateral dimension and height in a range between 10 pm and 1 mm, and a preponderant influence on a visual aspect, on a tactile feel, or on the mechanical properties of the materials on which the structures are embossed using the embossing tool with a topography containing code.

9. A method, according to any one of claims 1 to 3, characterized in that: specific raster surface structures have a lateral dimension and heights in a range between 1 pm and 100 pm and a preponderant influence on the functionality of the surface on which the structures are embossed using the embossing tool with a topography containing code, modifying properties such as wettability, tactile feel, thermal or electrical transfer, and specular or diffuse reflection (mattifying).

10. A method, according to any one of claims 1 to 3, characterized in that: specific raster surface structures have a lateral dimension and height in a range between 0.1 pm and 10 pm and a preponderant influence on a reflection behavior of the surfaces on which the structures are embossed using the embossing tool with a code-containing topography, generating holographic colors, diffraction patterns, and optical effects dependent on the viewing angle.

11. Use of an embossing tool with a code-containing topography manufactured according to the method as defined in any one of claims 1 to 3, characterized in that it is for embossing a material in any of the following scenarios: in-line embossing of packaging material; out-of-line embossing of packaging material; hot embossing of polymer and / or metal-based films; extrusion coating lines; UV or X-ray varnish-based molding and curing or transfer methods; any type of transfer technology in which the code-containing topography is transferred.

12. Embossing tool with a topography containing code, whereby the topography is configured to represent a combination of an image and alphanumeric or graphic information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool, characterized in that: - each of the surface structures will be one of a given set of surface structures, each of the surface structures of the given surface set being associated with a corresponding image pixel scan at the given resolution, at least one scan being representative of the alphanumeric or graphic information, and the remaining image scans being the result of image processing by at least one or more processes from a list comprising transformation, logical operation, translation,and the surface structures corresponding to an associated scan of the image pixels having a specific shape, size, orientation, and scale parameter for the surface structures.

13. Device for manufacturing an embossing tool with a coded topography, wherein Petition 870250088650, dated 09 / 30 / 2025, page 64 / 105 10 / 11, the topography is configured to represent a combination of an image and alphanumeric or graphical information, the topography comprising a plurality of surface structures distributed according to a topographic raster having a given resolution on the surface of the embossing tool, characterized in that it comprises: a computing means configured to: provide an image file containing a raster of image pixels with a given bit depth and an initial image resolution, transform the image file (100, 101) into a primary raster of image pixels (300, 301) with the given resolution, wherein the bit depth of an image pixel in the primary raster of image pixels is 1,Provide a raster code of image pixels for alphanumeric or graphical information, with a bit depth of 1 and a given resolution, the raster code being constructed from the code characteristics of contiguous pixels in state 1, the contiguous pixels being surrounded by pixels in state 0, apply a first logical operation (500) to combine the raster code of image pixels (400, 401, 402) and the primary raster of image pixels (300, 301) in order to obtain a first raster image of image pixels (501) as a result, whereby the first logical operation (500) is defined as: StateOfPixelFrom1stImageRaster (m,n) = StateOfPixelFromPrimaryImageRaster (m,n) AND (NOT( StateOfPixelFromCodeRaster (mn) )), where men are row and column indices with reference to a pixel in the image pixel scan,apply a second logical operation (601) to combine the first raster image of the image pixels (501) and the code Petition 870250088650, dated 09 / 30 / 2025, page. 65 / 105 11 / 11 raster of image pixels (400, 401, 402) in order to obtain a second raster image of image pixels (600), whereby the second logical operation (601) is defined as: StateOfPixelFrom2ndImageRaster (m,n) = NOT( StateOfPixelFrom1stImageRaster (m,n) OR StateOfPixelFromCodeRaster (m,n)), wherein the raster code of the image pixels, the first raster image of the image pixels and the second raster image of the image pixels comprise, respectively, pixels of bit depth 1, wherein, for each scan, a pixel state 1 indicates that a specific raster surface structure for that scan is planned in the topography for a location on the embossing tool surface corresponding to a position (m,n) of the image pixel in the scan,While a pixel state of 0 indicates that no specific raster surface structure for that scan should be projected onto the topography for another location on the embossing tool surface corresponding to another image pixel position in the scan, project the raster code of the image pixels, the first raster image of the image pixels and the second raster image of the image pixels onto the embossing tool surface in order to obtain the topographic raster of the locations on the embossing tool surface for the specific raster surface structures, and an engraving medium configured to emboss the specific raster surface structures onto the embossing tool surface at their respective locations and, in this way, obtain the code-containing topography. Petition 870250088650, dated 09 / 30 / 2025, pp. 66 / 105,

Images