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Ink resetting method based on JDF digitalization process

An ink and preset technology, which is applied to the general parts of printing machinery, printing, printing machines, etc., can solve the problems of uncommon data interfaces of printing machines, limited data export capabilities of pre-press systems, and unusable printing machines, etc., to achieve shortening Effect of printing preparation time, improvement of printing efficiency and printing quality, and reduction of printing cost

Inactive Publication Date: 2009-12-23
XIAN UNIV OF TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

These ink preset systems have achieved good results after being put into use, but there are still defects in that the data interface of the printing machine is not common, the data export capability of the pre-press system is limited, and the printing machine without the ability of the CIP ink preset interface cannot be used.

Method used

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  • Ink resetting method based on JDF digitalization process
  • Ink resetting method based on JDF digitalization process
  • Ink resetting method based on JDF digitalization process

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The flow process of the inventive method is as figure 1 shown. First, input the information of the printing machine equipment into the computer, generate the feature file of the printing machine, and save it in the form of an XML document; collect the information of the standard proofs printed by the printing machine for many times with high quality, and establish the ink color of the printing machine through data processing Transfer curve (also known as ink release curve); then, according to the layout information of the 1-bit tiff image file generated after imposition and the characteristic file of the printing machine, the dot area ratio corresponding to each ink area is extracted; according to the dot area ratio of each ink area Area ratio and ink color transfer curve, generate the preset data of each ink area, save it as a JDF fi...

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Abstract

According to the ink preset method based on the JDF digital process disclosed by the present invention, firstly, according to the 1-bit tiff image layout file and the printing machine characteristic file generated after imposition and processed by RIP rasterization, the dots of each ink area are extracted Area ratio, through the processing of the collected experimental sample data pairs, the ink color transfer curve is obtained, and then the corresponding ink preset data of each ink area is generated, and the generated ink preset data of each ink area is saved as a JDF file, which is supplied with CIP4 Printing machine with ink information interface, or save as Txt file, supply to printing machine without CIP4 ink information interface, used for pre-adjustment of ink key of printing machine, realize ink preset. By adopting the method of the invention, not only can quickly realize ink presetting in each ink area of ​​the printing machine, and the accuracy of ink presetting is good, but also shorten the start-up time, reduce the waste of pre-printing after start-up, and improve the quality of printed matter.

Description

technical field [0001] The invention belongs to the technical field of printing, and relates to a method for pre-adjusting ink keys of a printing machine, in particular to an ink pre-setting method based on a JDF digital process. Background technique [0002] In order to ensure the quality of printed matter, before the official startup of batch printing, it is necessary to pre-adjust the ink key opening and closing degree of each ink knife of the printing machine according to the proof sheet, that is, ink preset. [0003] Traditional printing usually relies on an experienced leader to analyze the color characteristics of the layout according to the proof sheet, and adjust the ink key of the printing machine in advance. Make multiple adjustments and corrections. In this way, the adjustment of the ink keys of the printing machine is completely dependent on the subjective feeling and experience of the machine operator, which leads to a long time for the printing and adjustment...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/00B41F33/16
Inventor 张二虎叶微微段敬红陈亚军
Owner XIAN UNIV OF TECH
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