Kba-giori S.a.

Johannes Georg Schade

Hartmut Karl Sauer

There is described a process for numbering substrates having security prints printed thereon, each of the substrates comprising a plurality of security prints which are arranged in k columns and n rows on the substrate, wherein product k*n is an integer multiple of ten or of twenty-five. The process comprises the step of numbering successive runs of 10substrates each, by providing each of the security prints with a serial number Serial#, the serial number Serial# being calculated with the formula: Serial#=Start#+&#x3b1;*[(r&#x2212;1)*k*n*10+((i&#x2212;1)*n+(j&#x2212;1))*10+MOD(s&#x2212;1; 10)], where Start# is a starting number from which numbering starts, &#x3b1; is equal to &#x2212;1 or +1 depending on whether numbering is carried out downwards or, respectively upwards, r identifies the run of 10N successive substrates, i and j respectively identify the column and the row on the substrate where the security print to be numbered is located, s is a number which identifies the substrate onto which the security print to be numbered is located and MOD(x; y) designates the so-called modulus function which returns the integer remainder of the division of y by x. Digits N+2 and N+1 of the serial number Serial# are produced by sequential actuation of a double numbering wheel () bearing a predetermined sequence of digit pairs for digits N+2 and N+1. Also described are numbering boxes to carry out the numbering process.

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Würzburg, Germany

Johannes Georg Schade