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, unusable printing machines, and limitation of pre-press system data export capabilities, etc., to achieve shortening Effect of print makeready time, reduced printing cost, improved printing efficiency and printing quality

Inactive Publication Date: 2008-10-15
XIAN UNIV OF TECH
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  • Abstract
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  • Claims
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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

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

The invention discloses an ink presetting method based on the JDF digitalized flow; firstly the dot area coverage of all the ink areas is extracted based on 1-bit tiff image layout files and printer characteristic files after being processed through RIP grating produced after imposition; ink transfer curves are obtained through treating the collected experimental sampling data pairs; then, the corresponding ink presetting data of all ink areas are produced; the produced ink presetting data of all ink areas are stored as JDF files to provide for printers with CIP4 ink information interfaces or stored as Txt files to provide for printers without CIP4 ink information interfaces for pre-adjusting printer ink bonds, thus realizing ink presetting. With the method of the invention, the presetting of ink in all ink areas of the printers can be quickly realized with good ink presetting accuracy, shortened starting time, reduced starting pre-printing waste and improved quality of printed products.

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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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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