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Application type positive property thermal sensitive computer direct board and process for making same

A cloth-type positive, computer technology, which is applied in the field of coating heat-sensitive computer direct plate and its preparation, can solve the problems of increased cost, complicated procedures and the like, and achieves the effects of being beneficial to environmental protection, simple in preparation and low in cost.

Inactive Publication Date: 2004-11-17
辽宁正宏豹驰数码科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN1380180A discloses a coating-type negative thermosensitive CTP plate. This negative thermosensitive CTP plate needs to be preheated before scanning, which brings cost increase and cumbersome procedures to users.

Method used

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  • Application type positive property thermal sensitive computer direct board and process for making same
  • Application type positive property thermal sensitive computer direct board and process for making same
  • Application type positive property thermal sensitive computer direct board and process for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Get 1.2g of phenolic resin and p-cresol resin (weight ratio: 1:1), 0.55g of carboxymethylphenolic resin, 0.2g of infrared light absorber (830 laser dye), 0.02g of diphenyliodonium hexafluorophosphate , 0.34 g of hexamethoxymethyl melamine was added to a solvent system consisting of 5 ml of ethylene glycol monomethyl ether, 5 ml of ethanol, and 1 ml of dimethylformamide to form a coating solution. The coating liquid is coated on the electrolytic and anodized aluminum plate with a thickness of 0.3mm according to the coating method adopted by the usual positive-working PS plate, and is dried at 110°C for 2 minutes to obtain the present invention. computer-directed version of .

[0044] The computer direct plate that makes is scanned on thermal CTP plate-making machine (with 830nm semiconductor laser, Beijing Huatong Company), and the conditions are: 830nm semiconductor laser light intensity 220mW, image point diameter 10 μ m, exposure time 1 μ s (500 rpm / minute). The de...

Embodiment 2

[0046] Get 1.2g of phenolic resin and p-cresol resin (weight ratio: 1:1), 0.55g of carboxymethylphenolic resin, 0.2g of infrared light absorber (830 laser dye), 0.02g of diphenyliodonium hexafluorophosphate , 0.34g of hexamethoxymethyl melamine, 5ml of ethylene glycol monomethyl ether, 5ml of ethanol, and 1ml of dimethylformamide are mixed to form a coating solution, and the coating solution is coated on a thickness of 0.3 after electrolysis and anodic oxidation. mm aluminum plate, after drying at 110°C for 2 minutes, the computer-directed plate was obtained. Scanning is the same as in Example 1, except that the exposure time is 2 μs (250 rpm), and the development is the same as in Example 1 to obtain a clear image. The image is firmly combined on the plate base. After rubbing it back and forth for 100 times with an eraser, observe it with a microscope, and the image will not drop.

Embodiment 3

[0048] p-cresol resin (or phenolic resin) 1.2g, carboxymethyl p-cresol resin 0.55g, infrared light absorber (830 laser dye) 0.2g, diphenyliodonium hexafluorophosphate 0.02g, hexamethoxymethyl 0.34 g of melamine, 5 ml of propylene glycol monomethyl ether (or propylene glycol dimethyl ether), 5 ml of ethanol, 1 ml of dimethylformamide, and 3 ml of diethyl ether are added to form the coating solution. The scanning and developing conditions are the same as in Example 1, and a clear image is obtained. The image is firmly combined on the plate base, rubbed back and forth with an eraser 100 times, and observed with a microscope, the image will not drop.

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Abstract

The invention discloses a kind of coating positive thermal sensitive CTP version and the manufacturing method. The thermal layer of the CTP version is: the coating liquid is created by dissolving filming material with weight of 100, infrared laser dye, heat acid generating agent, cross linker into organic solvent with weight of 300-600, which is coated on the base piece and dried under temperature of 90oC-120 oC for 1-5 minutes and forms a thin film with thickness of 1-2ª–m. The filming material is one or more of carboxy, carboxy methyl or sulfonic group derivant formed by homopolymer and polymer of phenol formaldehyde resin, paramethyl phenol formaldehyde resin, methylol or multi-methylol phenol formaldehyde resin, vinylphenol. The invention will form cross linker structure in the preheated process.

Description

Technical field: [0001] The invention belongs to the technical field of printing and plate making, and in particular relates to a coating-type heat-sensitive computer-to-direct plate (heat-sensitive CTP plate) and a preparation method thereof. Background technique: [0002] Printing and plate-making technology has undergone great development and changes in the past ten years. Traditional offset printing technology and pre-coated photosensitive offset printing plate (PS plate) are rapidly being replaced by CTP (abbreviation for Computer To Plate) plate. By the beginning of this century, that is, in recent years, both CTP plate-making equipment and plate materials have been commercialized and formed a certain scale. CTP technology is the combination of laser and computer. Compared with traditional printing technology, the equipment is more advanced and the plate making is faster. It also saves the printing film preparation and the process from film remake to PS plate, saving r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C1/055
Inventor 王仁祥曹维孝赵鸿
Owner 辽宁正宏豹驰数码科技有限公司
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