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Printing registration test method

A detection method and technology for printing presses, applied in printing, printing presses, general parts of printing machinery, etc., can solve the problems of inability to comprehensively detect printing registration, not very intuitive, etc., to achieve intuitive detection results and improve labor efficiency , the effect of reducing labor intensity

Inactive Publication Date: 2007-08-01
LUOYANG SUNRAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the printing process, the printing register is tracked by the color mark sensor installed on the printing machine. This method is more efficient, but it is not intuitive and cannot fully detect the printing register.

Method used

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  • Printing registration test method

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Embodiment 1

[0020] A printing registration detection method, the method comprises the following steps:

[0021] (1), during plate making, different colors are made in the same position of each color printing plate according to the form of concentric circles as shown in Figure 1, and the registration graphics of each color specified are printed on the printed matter;

[0022] (2) Install the detection equipment consisting of computers, cameras, etc. on the printing machine, and install the printing plates of each color on the printing machine to start printing. Since the initial positions of the printing plates of each color are random, standard registration marks may appear as shown in the attached picture In the figure shown in 2, the various colors will no longer be a concentric circle due to the change of printing position. After that, during the printing process, the camera installed on the printing machine captures the printing registration graphics and transmits the information to t...

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Abstract

A printing register detection method includes the following steps: (1) printing required various color registered graphs on printed matter; (2) grasp shooting the printing registered graphs through cameras installed on the printer in the printing process, and transmitting the information to computer; (3) digital anglicizing the grasp shooted registered graphs by computer, calculating various color chromatic error, and transmitting the error data to the servo-actuator of printer to correcting the error; after several timely capture images properly, calculating error and error correction, then the printing register achieves best status. The method has convenient operation, can fast and accurately detect chromatic error, the detection effect is audio-visual and clean; it can complete vertical and horizontal two directions error detection once and has a very good extension value.

Description

technical field [0001] The invention relates to a printing detection method, in particular to a printing registration detection method. Background technique [0002] Currently, in the color printing process, misregistration is one of the most common printing failures. National standards give different printing color registration requirements for different printed materials, such as plastic packaging printing, GB7707-87 stipulates that the main part of the field is within 0.5mm, and the main part of the layer is within 0.3mm. Market competition has made customers have increasingly stringent requirements for printing, and it is far from enough for many enterprises to meet national standards. In the material consumption of the printing process, misregistration accounts for the vast majority. This includes not only the overprinting out-of-tolerance consumption caused by the increase and deceleration process, the replacement of materials, etc., but also the overprint error cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/00
Inventor 周利国
Owner LUOYANG SUNRAY TECH
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