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Rapid color control method in printing plate-making

A rapid control and printing technology, applied in the direction of printing, printing plate preparation, etc., can solve the problem of not being able to exert the maximum function of CTP, and achieve the effect of simplifying the process of color management

Inactive Publication Date: 2012-12-26
SHANGHAI SUNGLOW PACKAGING TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the production rhythm of domestic printing factories is very fast, and they often cannot play the maximum function of CTP.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Below in conjunction with specific embodiment the present invention is described in further detail:

[0012] The present invention is realized through the following steps:

[0013] Add 100%, 75%, 50%, 25% color blocks on printed sheets;

[0014] Detect the color percentage of the 4 color blocks after actual printing of the printed sheet;

[0015] Aiming at the difference between the 4 color blocks and the international printing standard, the ratio is adjusted during the plate making, so that after adjustment, the printed matter can reach the international printing standard.

[0016] In the present invention, 100%, 75%, 50%, and 25% of the color blocks for detection are added outside the printed graphics and texts. When these color blocks are printed, the dots will expand after printing, so the ratio of the expansion is detected, such as 25 The percentage of the actual printed color patch color of the printed matter (up to 31%) was detected after printing of the color ...

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PUM

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Abstract

The invention relates to a rapid color control method in printing plate-making, comprising the following steps: adding color lumps of 100%, 75%, 50% and 25% on a printed sheet; detecting the percentages of the four color lumps on the printed sheet after actual printing; and adjusting the proportion when plate making by aiming at the difference between the four color lumps and the international printing standard to let the printed product reach the international printing standard after adjusting. According to the invention, the color management flow of printing houses is simplified, thus when printing that is influenced by non-plate making factors (such as paper, printing ink, printing machine state change) needs for adjustment, the international printing standard can be rapidly reached.

Description

technical field [0001] The invention relates to a printing plate making, in particular to a color rapid control method in the printing plate making. Background technique [0002] CTP is the latest direct printing plate-making technology, and it is a powerful tool for printing factories to make plates, but it involves a wide range of technologies, and the entire system requires a certain level of color management before it can be used. Standard detection needs to detect more than 1,000 color blocks, and the adjustment is time-consuming and laborious. [0003] CTP is the abbreviation of computer to plate, that is, computer-to-plate technology, which can ensure the fineness of the printing plate to the greatest extent. [0004] However, the production pace of domestic printing factories is very fast, and they often cannot play the maximum function of CTP. Contents of the invention [0005] The technical problem to be solved by the present invention is to provide a fast colo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C1/00
Inventor 张昊
Owner SHANGHAI SUNGLOW PACKAGING TECHNOLOGY CO LTD