Patent ID: 6755129
Filing Date: 2004-06-29
Classification: B41C,B41M

Abstract:
A method of printing unique prints or individually assembled printed products on rotary printing machines, said method comprisingproviding an image subject to be transferred to a printing material in the form of preformatted data, said data comprising a plurality of segments in a line and column format, each segment having a width b and a height h, each segment comprising a first portion and a second portion, each portion comprising an index feature, providing said first portion of each said segment on a first printing forme cylinder in a line and column format, having i lines and n columns, said first printing form having a printing width B=n*b, providing said second portion of each said segment on a second printing forme cylinder in a line and column format, having j lines and n columns, said first printing form having a printing width B=n*b, synchronously rolling said first and second printing forme cylinders so that said first and second portions of data are transferred to the printing material and so that each first portion is assembled with a respective second portion to form a complete segment of data, and for each revolution of said printing forme cylinders, recombining said index features of each said segment stepwise in the manner of a permutation so that said printing material is uniquely printed with each said revolution and so that i*j*n unique prints can be printed by combining preformatted data without changing the preformatting.