Security Paper and a Method for the Production Thereof

Abstract

The invention relates to a security paper for manufacturing security or value documents, such as banknotes, identification cards and the like, having at least two through openings ( 12, 16 ). According to the present invention, a first ( 12 ) of the through openings is produced during paper manufacture and exhibits characteristic irregularities in the edge region ( 14 ), while a second ( 16 ) of the through openings is produced after paper manufacture, by cutting or punching, having a sharply delimited edge region ( 18 ).

1 . A security paper for manufacturing security or value documents, such as banknotes, identification cards and the like, having at least two through openings, characterized in that a first of the through openings is produced during paper manufacture and exhibits characteristic irregularities in an edge region, and a second of the through openings is produced after paper manufacture, by cutting or punching, having a sharply delimited edge region, the contour shapes of the first and the second through opening being associated in meaning. 
     
     
         2 . The security paper according to  claim 1 , characterized in that the contour shapes of the first and the second through opening constitute related or complementary information. 
     
     
         3 . The security paper according to  claim 2 , characterized in that the information constitutes an image motif, characters or a code. 
     
     
         4 . The security paper according to  claim 1 , characterized in that the second opening is produced by laser cutting. 
     
     
         5 . The security paper according to  claim 1 , characterized in that the security paper exhibits a predefined paper thickness and a thin site having reduced paper thickness, the second through opening being introduced in the region of the thin site. 
     
     
         6 . The security paper according to  claim 5 , characterized in that the thin site comprises a watermark. 
     
     
         7 . The security paper according to  claim 1 , characterized in that the second opening is formed having edge surfaces that are tilted against the surface normal. 
     
     
         8 . The security paper according to  claim 7 , characterized in that the second opening exhibits edge surfaces of varying tilt against the surface normal. 
     
     
         9 . The security paper according to  claim 1 , characterized in that the two openings are closed on one side of the security paper with a foil element. 
     
     
         10 . The security paper according to  claim 1 , characterized in that the two openings are closed on both sides of the security paper with a foil element. 
     
     
         11 . A security paper for manufacturing security or value documents, such as banknotes, identification cards and the like, having at least one through opening, characterized in that the edge surface of the through opening exhibits first, sharply delimited subregions and second subregions having characteristic irregularities. 
     
     
         12 . The security paper according to  claim 11 , characterized in that first and second subregions alternate along the contour line of the opening. 
     
     
         13 . The security paper according to  claim 12 , characterized in that first and second subregions alternate along the contour line of the opening in irregular sequence. 
     
     
         14 . The security paper according to  claim 11 , characterized in that first and second subregions each extend through the entire paper thickness. 
     
     
         15 . The security paper according to  claim 11 , characterized in that first and second subregions succeed one another in one direction along the thickness of the security paper and complement each other to form the through opening. 
     
     
         16 . The security paper according to  claim 11 , characterized in that the security paper exhibits a predefined paper thickness and a thin site having reduced paper thickness, the through opening being introduced in the region of the thin site. 
     
     
         17 . The security paper according to  claim 16 , characterized in that the thin site comprises a watermark. 
     
     
         18 . The security paper according to  claim 11 , characterized in that the first subregions are produced by laser cutting. 
     
     
         19 . The security paper according to  claim 11 , characterized in that the first subregions are formed having edge surfaces that are tilted against the surface normal. 
     
     
         20 . The security paper according to  claim 19 , characterized in that the first subregions exhibit edge surfaces of varying tilt against the surface normal. 
     
     
         21 . The security paper according to  claim 11 , characterized in that the through opening is closed on one or on both sides of the security paper with a foil element. 
     
     
         22 . A security paper for manufacturing security or value documents, such as banknotes, identification cards and the like, having at least one through opening, produced during paper manufacture, that exhibits characteristic irregularities in the edge region, characterized in that the through opening is combined with an engraving that is produced by laser etching and that complements the opening to form a projection representation. 
     
     
         23 . The security paper according to  claim 22 , characterized in that the through opening is closed on one or on both sides of the security paper with a foil element. 
     
     
         24 . A security paper for manufacturing security or value documents, such as banknotes, identification cards and the like, having an embedded foil element that is visible in subregions through window regions manufactured with papermaking technology, characterized in that the security paper exhibits, in the region of the foil element, an opening that is produced after paper manufacture, by cutting or punching, having a sharply delimited edge region, and that is disposed immediately next to the window regions manufactured with papermaking technology. 
     
     
         25 . The security paper according to  claim 24 , characterized in that the sharply delimited opening is disposed over and/or immediately next to the foil element. 
     
     
         26 . The security paper according to  claim 24 , characterized in that the sharply delimited opening is continuous, with the exception of a potential overlap region with the foil element. 
     
     
         27 . The security paper according to  claim 24 , characterized in that the window regions are disposed on a first main surface of the security paper and the sharply delimited opening extends from the opposing main surface of the security paper to the foil element. 
     
     
         28 . The security paper according to  claim 24 , characterized in that the foil element constitutes a security element, especially a security thread or a security band. 
     
     
         29 . The security paper according to  claim 24 , characterized in that the sharply delimited opening is produced by laser cutting. 
     
     
         30 . The security paper according to  claim 24 , characterized in that the security paper exhibits a predefined paper thickness and a thin site having reduced paper thickness, the sharply delimited opening being introduced in the region of the thin site. 
     
     
         31 . The security paper according to  claim 30 , characterized in that the thin site comprises a watermark. 
     
     
         32 . The security paper according to  claim 24 , characterized in that the sharply delimited opening is formed having edge surfaces that are tilted against the surface normal. 
     
     
         33 . The security paper according to  claim 32 , characterized in that the sharply delimited opening exhibits edge surfaces of varying tilt against the surface normal. 
     
     
         34 . The security paper according to  claim 24 , characterized in that the sharply delimited opening is closed on one or on both sides of the security paper with a foil element. 
     
     
         35 . A method for manufacturing a security paper having at least two through openings, especially according to  claim 1 , in which
 during paper manufacture, a first through opening having characteristic irregularities is produced in the edge region, and   after paper manufacture, a second through opening having a sharply delimited edge region is produced by cutting or punching,   the first and second through opening being formed such that their contour shapes are associated in meaning.   
     
     
         36 . The method according to  claim 35 , characterized in that a thin site having reduced paper thickness is formed in the security paper, and in that the second through opening is produced in the region of the thin site. 
     
     
         37 . The method according to  claim 35 , characterized in that the second opening is produced by laser cutting. 
     
     
         38 . The method according to  claim 37 , characterized in that the beam divergence and the beam tilt to the paper surface are set such that the second opening is produced having edge surfaces that are tilted against the surface normal. 
     
     
         39 . The method according to  claim 37 , characterized in that the beam divergence and beam tilt to the paper surface are set such that the second opening is produced having edge surfaces that are tilted differently against the surface normal. 
     
     
         40 . The method according to  claim 35 , characterized in that the two openings are closed on one or on both sides of the security paper with a foil element. 
     
     
         41 . A method for manufacturing a security paper having at least one through opening, especially according to  claim 11 , in which the through opening is produced having an edge surface that exhibits first, sharply delimited subregions and second subregions having characteristic irregularities. 
     
     
         42 . The method according to  claim 41 , characterized in that
 during paper manufacture, a through opening having characteristic irregularities is produced in the edge region, and   after paper manufacture, the edge region of the produced opening is modified by cutting or punching and, in this way, is sharply delimited at least in subregions.   
     
     
         43 . The method according to  claim 42 , characterized in that the modification is produced by laser cutting. 
     
     
         44 . The method according to  claim 41 , characterized in that
 a piece of paper having the desired shape of the opening is defined with interrupted, sharply delimited cutting lines in the security paper, and   the piece of paper is torn out of the security paper, especially blown out or pulled out.   
     
     
         45 . The method according to  claim 44 , characterized in that the piece of paper is defined by laser cutting. 
     
     
         46 . The method according to  claim 41 , characterized in that
 a sharply delimited thin site having the shape of the desired opening is produced in the security paper, and   the piece of paper formed in the region of the thin site by the remaining paper thickness is torn out of the security paper, especially blown out or pulled out.   
     
     
         47 . The method according to  claim 46 , characterized in that the sharply delimited thin site is produced by laser cutting. 
     
     
         48 . The method according to  claim 46 , characterized in that the sharply delimited thin site is produced in the region of a thin site produced with papermaking technology, such as a watermark. 
     
     
         49 . The method according to  claim 43 , characterized in that the beam divergence and beam tilt to the paper surface are set such that the modification, cutting line or thin site is produced having edge surfaces that are tilted against the surface normal. 
     
     
         50 . The method according to  claim 43 , characterized in that the beam divergence and beam tilt to the paper surface are set such that the modification, cutting line or thin site is produced having edge surfaces that are tilted differently against the surface normal. 
     
     
         51 . The method according to  claim 41 , characterized in that the through opening is closed on one or on both sides of the security paper with a foil element. 
     
     
         52 . A method for manufacturing a security paper having at least one through opening, especially according to  claim 22 , in which
 during paper manufacture, a through opening having characteristic irregularities is produced in the edge region, and   into the security paper is introduced, by laser etching, an engraving that complements the through opening to form a projection representation.   
     
     
         53 . A method for manufacturing a security paper having an embedded foil element, especially according to  claim 24 , in which
 during paper manufacture, a foil element is embedded in the security paper,   window regions are produced in which the foil element becomes visible, and   after paper manufacture, an opening having a sharply delimited edge region is produced in the region of the foil element over and/or immediately next to the window regions by cutting or punching.   
     
     
         54 . The method according to  claim 53 , characterized in that the sharply delimited opening is produced by laser cutting. 
     
     
         55 . The method according to  claim 53 , characterized in that a through, sharply delimited opening is produced immediately next to the foil element. 
     
     
         56 . The method according to  claim 54 , characterized in that the sharply delimited opening overlaps the foil element, the laser parameters being set such that the laser cuts only the paper substrate, but not the foil element. 
     
     
         57 . The method according to  claim 53 , characterized in that, on a first main surface, prior to embedment, the foil element is coated contiguously with heat seal coating, and on a second, opposing main surface, is prepared with heat seal coating only at the foil edge, so that the middle region of the foil element remains uncoated. 
     
     
         58 . The method according to  claim 57 , characterized in that the window regions are produced on the contiguously coated main surface. 
     
     
         59 . The method according to  claim 57 , characterized in that the sharply delimited opening is produced in the middle region of the main surface that is coated only at the edge. 
     
     
         60 . The method according to  claim 57 , characterized in that the sharply delimited opening is produced by laser cutting. 
     
     
         61 . The method according to  claim 60 , characterized in that the beam divergence and beam tilt to the paper surface are set such that the sharply delimited opening is produced having edge surfaces that are tilted against the surface normal. 
     
     
         62 . The method according to  claim 60 , characterized in that the beam divergence and beam tilt to the paper surface are set such that the sharply delimited opening is produced having edge surfaces that are tilted differently against the surface normal. 
     
     
         63 . The method according to  claim 53 , characterized in that the sharply delimited opening is closed on one or on both sides of the security paper with a foil element. 
     
     
         64 . A use of a security paper according to  claim 1  for securing goods of any kind against counterfeiting. 
     
     
         65 . A value document, such as a banknote, identification card and the like, having a security paper according to  claim 1 .