Method and test bench for determining printing parameters of a printing press

A technology of printing presses and parameters, applied in general parts of printing machinery, printing presses, rotary printing presses, etc., can solve the problems of expensive running time of flexographic printing presses and shortening of setting time of flexographic printing presses

Active Publication Date: 2022-05-24
博斯特比勒费尔德有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, machine run times for flexographic printing machines are relatively expensive, so setup times for flexographic printing machines that do not produce finished products should be kept as short as possible

Method used

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  • Method and test bench for determining printing parameters of a printing press
  • Method and test bench for determining printing parameters of a printing press
  • Method and test bench for determining printing parameters of a printing press

Examples

Experimental program
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Embodiment Construction

[0064] figure 1 A test stand 10 for determining printing parameters of a printing press (not shown) according to the present invention is shown. In the embodiment shown, the printing press is a flexographic printing press.

[0065] The test stand 10 is used to test previously prepared printing plates 12 intended for printing in a flexographic printing press. As a result, the printing plate 12 in the embodiment shown here is a cliché. A cliche is usually made individually for each print job from plastic, photopolymer or rubber. The cliche mentioned below generally also includes the printing plate 12 .

[0066] The quality of printing depends on the quality of the respective cliché, as well as the printing parameters used. For optimum printing results, the printing parameters must therefore be adapted to the respective cliche produced.

[0067] The cliche is mounted on a printing cylinder 14, which is then placed in a flexographic printing press together with the cliche for...

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PUM

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Abstract

A method for determining printing parameters of a printing press, in particular a flexographic printing press, comprises the following steps: First, a printing plate (12) is provided and mounted on a printing cylinder (14). At least one high-resolution image of the surface of the printing plate (12) is then recorded by means of a 3D camera (18). A height profile of the printing plate (12) is determined on the basis of at least one high-resolution image, and a simulated printing image is then calculated on the basis of the height profile and initial settings of printing parameters. Finally, the optimized printing parameters are determined by checking and / or changing the initially set printing parameters. For this purpose, after the printing parameters have been changed, the simulated printing image is calculated again. Additionally, a test bench is specified on which this approach can be performed.

Description

technical field [0001] The present invention relates to a method for determining printing parameters of a printing press, in particular a flexographic printing press, and a test stand therefor. Background technique [0002] In a printing press, a print form is used to apply ink to a substrate, such as paper or plastic. Depending on the type of printing process, the printing plate has protrusions (relief printing) or depressions (gravure printing), which serve the purpose of transferring the ink from the printing plate to the substrate. [0003] In flexographic printing, flexographic plates with a high degree of relief are used to apply the ink. A cliche is made of plastic, photopolymer or rubber and is produced individually for each print job on the basis of a digital printing stencil. [0004] The problem that arises here is that during the production of the cliché, deviations can occur between the digital printing stencil and the fully mounted cliché, eg irregularities i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F5/24B41F31/10G01B11/24
CPCB33Y50/02B41F5/24B41F31/10G01B11/24G01B11/2441B41F33/0027G06T7/80B41J2/2132B41M1/04
Inventor F·罗斯塔尔斯基
Owner 博斯特比勒费尔德有限公司
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