Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/10—Intaglio printing ; Gravure printing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/29—Securities; Bank notes

Definitions

• the invention relates to a security paper sheet for the production of security or value documents and the like with at least one intaglio print motif with a raised relief structure.
• the invention further relates to a corresponding manufacturing method and a gravure printing plate for embossing such a security paper sheet.
• Security and value documents the commercial value or value of which far exceeds the material value, are usually identified by suitable measures as genuine and distinguishable from counterfeits and counterfeits. They are usually provided with special security elements that are ideally not or only with great effort imitable and not falsified.
• security elements are of particular importance, which can be identified by users without aids and recognized as genuine, but at the same time can only be produced with high technical or economic effort.
• security elements are watermarks which can only be introduced into a document of value during papermaking, or printed images produced by intaglio printing, which are characterized by a characteristic tactility which is easily recognizable even to the layman, which can be achieved by other printing methods and in particular by copying machines or scanner is not reproduced.
• Intaglio printing is characterized by the fact that in order to produce a desired printed image in a printing plate, linear printing takes place. Mige depressions are engraved. These depressions are produced by means of a suitable engraving tool or by etching.
• the intaglio technique allows for a very thick paint application compared to other common printing techniques.
• the paper can be pressed by the high pressure forces in the color-free areas in the engraving of the printing plate and thereby provided with an embossed relief structure.
• the thick ink layer produced in the intaglio printing process, together with the partial deformation of the paper surface, can also be easily felt manually by the layman and can thus easily be detected on the basis of its tactility as an authenticity feature.
• the tactility is not imitated with a copier, so that the intaglio printing technology provides high-quality protection against counterfeiting.
• the printed sheets are stacked after a gravure printing step for further processing. Due to the different profile heights of the sheet surface and the embossed intaglio printing often results in a very wavy pile, especially if the sheets are printed only in small areas with intaglio. This leads to easy slipping of the individual sheets and thus favors a bad Abliege .
• the invention has for its object to provide a security paper sheet of the type mentioned above, which avoids the disadvantages of the prior art and in particular has an improved stacking behavior during production.
• the invention is also intended to provide a corresponding production method. This object is achieved by the manufacturing method having the features of the main claim.
• An associated security paper sheet and a corresponding intaglio printing plate are given in the independent claims. Further developments of the invention are the subject of the dependent claims.
• a plurality of compensating elements with a raised relief structure is additionally produced, which are distributed over the surface of the security paper sheet to compensate for the profile of the security paper sheet.
• the compensation elements function as profile-compensating spacers, thereby ensuring improved stacking behavior and a lower level of deviation.
• a better air exchange also results in better drying of the inks of the intaglio printing motifs.
• the compensation elements are distributed not only in the area of the individual benefits, but over the entire surface of the security paper sheet.
• the compensating elements are advantageously generated only outside the intaglio motifs in order not to influence their design and profile height.
• each security paper sheet contains several individual benefits, wherein the compensation elements are arranged substantially uniformly within the individual benefits in order to achieve an overall substantially uniform profile height.
• the compensation elements in different individual benefits can be arranged identically or else differently. net. The latter makes it possible to use the arrangement of the compensation elements as a machine-readable coding for identifying the individual benefits.
• the coding can be achieved alternatively or in addition to the coding on the arrangement of the compensation elements on different contour shapes and / or edges of the compensation elements in the individual benefits.
• the flanks preferably differ in their steepness and / or spatial form.
• the flanks can be provided with stair steps.
• the balancing elements are advantageously produced with soft edges with little steepness to minimize the risk of paper damage during printing.
• the compensation elements are preferably formed with rounded outline shapes, such as circles, ellipses or ovals.
• the compensation elements For effective compensation of the profile, it is advisable to produce the compensation elements with high engraving depth.
• the gravure depth of the intaglio print motifs likewise introduced is expediently taken into account, since it is generally sufficient for the profile compensation if the engraving depth of the compensating elements lies in the region of the maximum engraving depth of the intaglio print motifs.
• an engraving depth between 40 .mu.m and 260 .mu.m, preferably between 60 .mu.m and 120 .mu.m, more preferably between 80 .mu.m and 100 .mu.m in question.
• the compensation elements can be executed as blind embossing or printed in color.
• the security paper sheet after the first intaglio printing step is provided with at least one further intaglio motif in a further intaglio printing step, wherein the compensating elements are substantially leveled in the further intaglio printing step. While the advantages of the method can then be used for the first intaglio printing step, the finished security paper has a smooth surface without tactile detectable compensating elements.
• the security paper sheet may be provided with intaglio images on opposite sides in the first intaglio printing step and the further intaglio printing step.
• the designs of the intaglio printing motifs produced in the first intaglio printing step and the further intaglio motifs produced in the further intaglio printing step are advantageously matched to one another in order to substantially level the compensating elements of the first intaglio printing step in the further intaglio printing step.
• the security paper sheet contains a plurality of individual benefits, wherein at least a portion of the compensation elements is arranged with an elongated shape in one or more corners of the individual use.
• the cut-out value documents can thus be given increased stability in the corner regions which are particularly prone to kinking.
• at least a part of the compensating elements is arranged with an elongated shape at one or more edge centers of the individual components.
• the cut-out documents of value can thereby be given increased stability in the central areas which are particularly stressed during folding.
• the invention also includes a security paper sheet for the production of security or value documents and the like having at least one intaglio print motif with a raised relief structure. In this case, a plurality of compensating elements with a raised relief structure for distributing the profile of the security paper sheet are distributed over the surface of the security paper sheet. Details of the design and arrangement of the compensation elements can be found in the above description of the generic manufacturing method.
• the invention also includes a value document, such as a banknote, an identification card or the like, made of a security paper sheet of the type described.
• a value document such as a banknote, an identification card or the like, made of a security paper sheet of the type described.
• the invention further relates to an intaglio printing plate for embossing a security sheet for security or value documents with at least one gravure motif in the form of a relief structure, in which a plurality of over the surface of the intaglio printing plate distributed Ausretesgravurieri is provided with relief structure to compensate for the profile of the security paper sheet to be printed ,
• the compensating engraving elements are distributed over the entire surface of the intaglio printing plate, i. H. not only in the areas for the individual benefits.
• the gravure motifs of the printing plate in the security paper sheet produce the above intaglio print motifs
• the compensatory engraving elements produce the aforementioned compensating elements.
• FIG. 1 is a schematic view of a bill according to the invention with two intaglio motifs and a plurality of blind embossed compensation elements
• FIG. 2 shows a cross section through the banknote along the line II-II of Figure 1 in the region of one of the embossed compensation elements.
• FIG. 4 shows in (a) a security paper sheet according to the invention with imprinted intaglio motifs and blind embossed compensation elements, in (b) a plurality of security paper sheets stacked one above the other and in (c) the quiet stack resulting from the stacking of the sheets from (a),
• FIG. 5 shows a banknote with blind embossed compensation elements arranged purposefully in the corners, wherein (a) and (b) show two embodiments, and 6 shows a banknote with blind embossed compensation elements arranged specifically at the edge centers, wherein two different designs are shown in the partial images.
• Fig. 1 shows a schematic view of a banknote 10, which in addition to conventional, not shown in the figure design and security elements, two intaglio motifs 12 and 14, namely a portrait 12 and a tactile for the user detectable value 14.
• the banknote 10 contains a plurality of blind-embossed compensating elements 16 of raised relief structure, which in the manner explained below serve to equalize the profile of the security paper sheets in the production of banknotes 10.
• the compensating elements 16 are distributed outside the design elements 12 and 14 over the surface of the banknote 10 and hardly noticeable to the user due to the blind embossing.
• Fig. 2 shows a cross section through the banknote 10 along the line II-II of Fig. 1 in the region of one of the embossed compensation elements 16.
• the compensation elements 16 with round shapes, for example in shape formed by flat pimples.
• the compensation elements 16 appearing on the front side of the banknote as elevations 16E form recesses 16V seen from the banknote rear side.
• the lateral extent A of the compensation elements 16 in the exemplary embodiment is about 300 ⁇ m and in principle can be between about 60 ⁇ m and about 2000 ⁇ m.
• the embossing depth h of the compensating elements 16 in the exemplary embodiment is about 90 ⁇ m, but in principle can be between about 40 ⁇ m and about 260 ⁇ m.
• the compensation elements 16 are formed with soft flanks 18, that is to say with flanks with a small steepness.
• the compensating elements 16 may have an average flank angle of about 30 ° to about 50 °.
• the tear strength of the banknote paper is also not adversely affected by the addition of soft edge compensating elements.
• FIG. 3 (a) firstly shows a conventional security paper sheet 20 with a plurality of individual uses 22, each of which is provided with a portrait representation 12 and a tactile detectable value 14 in intaglio printing. Due to the different profile heights of the sheet surface and the two intaglio printing elements 12, 14 results in the stacking of such sheet 20 in the production of a very wavy stack 24, as shown in Fig. 3 (b). Such wavy stack 24 favor slipping of the individual sheets 20 and therefore have a comparatively poor stacking behavior.
• FIG. 4 (a) again shows a security paper sheet 30 with a plurality of single-groove paper sheets.
• zen 32 which now in addition to the executed in the intaglio Portraitdar einen 12 and the tactile detectable value numbers 14 additionally has a plurality of blind embossed compensation elements 16.
• the engraving depth of the compensation elements 16 is set to the engraving depth of the intaglio printing motifs 12, 14 and is preferably of the order of magnitude of the largest occurring engraving depth, in the embodiment of the engraving depth the value 14.
• the compensation elements 16 are also substantially uniform over the surface of the security paper arch 30 and thus effect an effective balance of the overall profile of the security paper sheet 30.
• the security paper sheets 30 according to the invention thereby come to rest much more uniformly on one another and form a substantially quieter stack, as illustrated by the stacked section of FIG. 4 (b) and the sectional view of a complete stack 34 of FIG. 4 (c).
• a quieter stack can be better processed in the further processing steps.
• the spacing behavior is also minimized by the compensating elements 16 acting as spacers.
• a further advantage consists in the improved drying of intaglio printing inks of the motif elements 12 and 14.
• those subregions which have no intaglio printing elements 12, 14 are calendered by the high pressure during the intaglio printing step and are thereby significantly reduced in their profile height
• these often large-area calendered subregions lie close to one another, so that an exchange of air over the sheet surface can take place only to a very limited extent.
• the compensating elements 16 according to the invention distributed over the surface of the security paper sheet 30 lead to an improved supply of air to the intaglio printed partial regions 12, 14, so that the applied ink receives more time and more air for drying.
• the compensating elements 16 may be distributed regularly or randomly over the surface of the individual end 32 of the security paper sheet 30.
• the maximum distance between neighboring compensating elements does not exceed a maximum size dependent on the paper used.
• the compensating elements 16, by virtue of their arrangement, can realize a machine-readable coding, thereby making the individual benefits 32 distinguishable.
• the compensating elements 44 are designed as elongated ellipses whose main axes are aligned parallel and substantially in the direction of the respective corner 42.
• FIG. 5 (b) A further possibility is shown in FIG. 5 (b), in the exemplary embodiment of which the compensation elements 44 are formed by elongated ellipses with main axes directed towards the respective corner 42.
• Compensating elements 56 can advantageously also be arranged at the edge centers of the longitudinal edges 52 or transverse edges 54 of a banknote 50, as shown in the two exemplary embodiments of FIG.
• the stiffness of the banknote 50 can be increased in the region of the edge centers which are heavily loaded in use by folding.
• the compensating elements can be tactually detected by their relief structure after production.
• the second intaglio printing step in two-sided intaglio printing.
• the compensating elements generated in the second intaglio printing step can be felt on the finished security paper.
• the tactile detectability is not desired and the surface of the security paper is to be smooth outside of the design elements created in intaglio printing, in the case of two-sided intaglio printing, for example, it is possible to introduce the compensating elements only in the first intaglio printing step, for example for the production of the banknotes back.
• Advantages of the invention can then be used for the process steps of the first gravure printing step.
• a subsequent second intaglio printing step for example for the production of the banknotes front side, no compensating elements are then embossed. Rather, the already existing compensation elements of the first intaglio printing step are leveled by the high embossing pressure of the second pass-deep pressure step and thus no longer appear in the finished security paper. It is understood that for this purpose the designs of the front and the back are suitably adapted to each other with advantage.

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• Business, Economics & Management (AREA)
• Accounting & Taxation (AREA)
• Finance (AREA)
• Printing Methods (AREA)
• Credit Cards Or The Like (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (6)

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Citations (6)

• 2006
  • 2006-08-22 DE DE102006039306A patent/DE102006039306A1/de not_active Withdrawn
• 2007
  • 2007-08-09 RU RU2009109383/12A patent/RU2450938C2/ru not_active IP Right Cessation
  • 2007-08-09 CA CA2661570A patent/CA2661570C/en not_active Expired - Fee Related
  • 2007-08-09 MY MYPI20090681A patent/MY180635A/en unknown
  • 2007-08-09 WO PCT/EP2007/007050 patent/WO2008022714A1/de active Application Filing
  • 2007-08-09 EP EP07786638.2A patent/EP2057020B1/de not_active Not-in-force

Patent Citations (6)

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