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Data carrier comprising gravure printed image and method for transposing image motifs into linear structures and onto gravure printing plate

A technology of data carrier and gravure printing, which is applied to the data carrier with line gravure printing images, converts the basic patterns of patterns into line structures and transfers to line gravure printing plates, and can solve the problems of easy copying and forged images, etc. Achieve dimensionally accurate results

Inactive Publication Date: 2003-10-29
GIESECKE & DEVRIENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the structure of the grating is fixed over the entire image area, it is easier to copy and falsify the image formed by the grating

Method used

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  • Data carrier comprising gravure printed image and method for transposing image motifs into linear structures and onto gravure printing plate
  • Data carrier comprising gravure printed image and method for transposing image motifs into linear structures and onto gravure printing plate
  • Data carrier comprising gravure printed image and method for transposing image motifs into linear structures and onto gravure printing plate

Examples

Experimental program
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Embodiment Construction

[0038] figure 1 Indicates a portrait made by engraving. That is, all outlines and picture elements are formed with varying line structures, as in usual engraved images. For ease of identification, for example in the coat and beard area of ​​the image, these structures may consist of continuous or interrupted lines; or in the ear, cheek and forehead area by dashed or dotted lines. These images are directly engraved by hand into the metal plate or drawn by hand on paper according to methods known in the art. When converting the basic pattern of the picture into an engraving pattern, different shades and colors or grayscale values ​​can be formed by using different forms of line structure and / or changing the line width and line distance for image areas of different tones. Thus, bright areas (such as the forehead, cheeks, and ear areas in this portrait) are best formed by fine, widely spaced lines and then dashed, dotted, or dotted. Dark image areas (such as the hat or coat in ...

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PUM

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Abstract

The invention relates to a data carrier printed according to a gravure printing method. The data carrier includes a mid-tone image represented by an irregular line structure using an engraving method. The line structure is at least partially superimposed on the fine structure formed in the positive and / or negative image. The invention also relates to a method for generating and processing irregular line structures in the form of digital image data on a computer according to individual preset conditions of the server. Converting the line structure to a gravure printing plate, using digital image data to control an engraving device; or using other printing methods to at least partially superimpose the line structure with fine structures formed in the positive and / or negative image.

Description

technical field [0001] The invention relates to a data carrier printed by line intaglio printing and to a method for transferring arbitrary picture motifs onto a line intaglio printing plate. Background technique [0002] In gravure printing, the ink transfer areas on the printing plate are recessed. The depressions are filled with ink, and excess ink is removed from the surface of the plate using a wiper roller or doctor blade so that only the depressions are filled with ink; the inked plate is then pressed against a substrate, usually composed of paper. When the substrate and printing plate are separated, the ink is transferred from the depressions in the surface of the plate to the substrate. There is a difference between rotogravure and line gravure. [0003] In traditional rotogravure printing, images are formed from small, closely adjacent but separated intaglio pockets filled with fluid ink in a printing plate. After transfer to the substrate to be printed, the ink...

Claims

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Application Information

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IPC IPC(8): B42D25/29B41C1/04B41M1/10B41M3/14B41N1/06B42D25/22B42D25/30B42D25/309B42D25/337B42D25/485B44F3/00B44F5/00G06T1/00
CPCB41C1/04B41M1/10B41M3/14B41N1/06B44F3/00B44F5/00B42D25/337B42D25/30
Inventor 彼得·弗朗兹鲁迪格·施米特斯蒂芬·温克勒
Owner GIESECKE & DEVRIENT GMBH
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