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CTP plate making method and apparatus by using ink jet imaging principle

An imaging principle, direct technique, applied in photosensitive materials for optomechanical equipment, printing plate preparation, printing plates, etc., to achieve the effect of good dot reproducibility, improved image transfer quality, time and space saving

Inactive Publication Date: 2006-07-12
BEIJING ZHONGKE NANO THINK PRINT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disclosed Chinese patent CN1295307A (2001) has described a kind of technology that utilizes ink-jet printer to carry out computer direct plate-making, but it just uses ink-jet printer as the tool of making template, still will combine photosensitive PS plate printing and fixing at last, in fact Still a photosensitive CTP technology

Method used

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  • CTP plate making method and apparatus by using ink jet imaging principle

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The system uses EPSON 7600 inkjet plotter, Founder RIP software, EPSON original quick-drying ink and 0.15 mm thick aluminum base plate treated with electrochemical oxidation and coating method.

[0025] The image is output to the printer according to the color separation of the frequency-modulated hanging network by using Founder’s image-text processing color separation and hanging network RIP software. The printer sprays the ink onto the surface of the aluminum base plate, and after 1 minute of infrared radiation, the printing plate with a resolution of 2880DPI can be obtained. Its dot reproduction rate has reached 98%, fully able to meet the needs of 175LPI high-quality printing.

Embodiment 2

[0027] The system selected is EPSON 7600 inkjet plotter, Founder RIP software, ink prepared according to the patent application of "a nano-pigment ink for inkjet CTP plate making technology" and a coated 0.15 mm thick polycarbonamide base plate .

[0028] The image is output to the printer according to the color separation of the frequency-modulated hanging network by using Founder’s image-text processing color separation and hanging network RIP software. The printer sprays the ink onto the surface of the aluminum base plate, and after 1 minute of infrared radiation, the printing plate with a resolution of 2880DPI can be obtained. Its dot reproduction rate has reached 98%, fully able to meet the needs of 175LPI high-quality printing.

Embodiment 3

[0030] Mix the nano pigment particles (black) of 3% by weight with 5% phenolic resin, 20% ethanol, 2% glycerol, 70% ethylene glycol monoethyl ether, heat to 40 degrees Celsius and stir for 6 hours, and wait for the resin After dissolving and mixing uniformly, filter with a 0.5 micron filter membrane to obtain suitable nano-pigment ink.

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Abstract

The invention discloses a CTP direct platemaking method and equipment, which is characterized by the following: adapting ink-jet image-forming elementary to spray the ink-wet on the hydrophilic plate surface to form the ink-wet information record area; fixing the printed information on the printing surface through optical solidification or heat solidification. The invention reduces the information loss and simplifies the developing course, which saves the film and subsequent developing craft.

Description

1. Technical field [0001] The invention belongs to the technical field of printing and plate making, and in particular relates to a CTP computer-to-plate making technology method and related equipment utilizing the principle of inkjet imaging. 2. Background technology [0002] Since the Drupa Expo in 1995, the wave of CTP (Computer-to-plate computer-to-plate) has set off in the global printing industry. As the most revolutionary cutting-edge technology in the field of lithographic offset printing technology, CTP technology makes the image-text processing system more open. In the current printing field, digitization and networking have become the basic characteristics and development trends of electronic pre-press digital printing, and CTP technology and its system are the basic prerequisites for digitalization in the printing field. [0003] The so-called CTP technology refers to the direct output of computer typesetting page numbers to the printing plate, after rapid proce...

Claims

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Application Information

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IPC IPC(8): G03F7/09B41J2/01B41N1/00B41C1/00
Inventor 肖珂李英锋宋延林杨联明江雷王艳乔
Owner BEIJING ZHONGKE NANO THINK PRINT TECH
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