Method and device for printing substrates

Abstract

The method involves applying an additional print image directly on a colorless peripheral section (4) of a gravure printing cylinder (21), a flexo-printing unit-transfer cylinder or gravure printing unit-transfer cylinder by an inkjet printing device (5), where the printing cylinder directly contacts a printed material (2). The print image is transferred from the printing cylinder to the material by the transfer cylinders. The applied print image is removed from the peripheral section by a cleaning device e.g. scraper (8a), during a production print operation of a rotary printing machine. The gravure printing cylinder is provided with a surface made of ceramic. An independent claim is also included for an arrangement for printing a printed material in a rotary printing machine.

Description

technical field [0001] The invention relates to a method and a device for printing a first immutable print image and a second variable print image on a printing material in a rotary printing press. technical background [0002] Shape-constrained or variable printing methods are known from the prior art. Shape-constrained printing methods are, for example, offset, flexographic, gravure or screen printing methods, in contrast to, for example, inkjet and thermal transfer printing, which are referred to as variable methods. [0003] Furthermore, a combined printing method is known, which is also called press-in method or “imprinting” and is based on two successive, shape-constrained and variable individual printing methods. However, the combined printing methods known up to now often have printing-technical problems, in particular that there are often clearly perceptible differences between the printed image of the shape-constrained printing method and the imprinted image of th...

AI Technical Summary

Problems solved by technology

Different control of jetting modules has a negative impact on the quality of ink volume and ink strength

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