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Photosensitive imaging liquid containing alpha-diazonium-1,3-diketone structure and used for photosensitive macromolecule flat printing plate

A technology of photosensitive polymer and imaging fluid, which is applied in the direction of photoplate making process, optics, and optomechanical equipment on the pattern surface, which can solve the problems of increasing cost, interference of polymerization inhibition, and increasing operation steps, etc., and achieves high printing durability , high sensitivity, good resolution effect

Inactive Publication Date: 2012-05-23
TAIXING CITY ORIENT IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, free radical polymerization is easily disturbed by the inhibition of oxygen, so a protective layer should be coated on the photosensitive coating. The coating of the protective layer not only increases the operation steps but also increases the cost.

Method used

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  • Photosensitive imaging liquid containing alpha-diazonium-1,3-diketone structure and used for photosensitive macromolecule flat printing plate
  • Photosensitive imaging liquid containing alpha-diazonium-1,3-diketone structure and used for photosensitive macromolecule flat printing plate
  • Photosensitive imaging liquid containing alpha-diazonium-1,3-diketone structure and used for photosensitive macromolecule flat printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]20.0 grams of monomer 2-(2-diazo-3-carbonyl-3-p-dimethylaminophenylpropionyloxy) ethyl methacrylate, 8.1 grams of methyl methacrylate, methacrylate hydroxyl Dissolve 7.0 g of ethyl ester and 0.6 g of free radical polymerization initiator AIBN in 500 ml of tetrahydrofuran, and react at 65°C for 30 hours; after the polymerization reaction, pour it into petroleum ether, a large amount of solid precipitates, filter, and vacuum dry at 30°C for 24 hours. Obtain light yellow powdery solid, be p7, wherein R1 is methyl, the molecular formula of gained polymer compound is as follows, and its specific information is as shown in table 3:

[0041]

[0042] Table 3 Characterization of photosensitive polymer compound P7

[0043] photopolymer compound

[0044] When it is applied in positive photoresist composition, the diazo group of these polymer compounds will be decomposed when exposed to ultraviolet light, undergo Wolff rearrangement to generate enone, and finally hydro...

Embodiment 2

[0046] Photosensitive polymer compound P17, wherein R1 is a methyl group, its synthesis method is: the monomer methacrylic acid 2-(2-diazo-3-carbonyl-3-p-dimethylaminophenylpropionyloxy) ethyl 20.0 grams of base esters, 8.2 grams of methacrylamide, 4.0 grams of methylolacrylamide and 0.7 grams of free radical polymerization initiator AIBN are dissolved in 500ml of acetonitrile with a volume ratio of 1: in a mixed solvent of water, 65 React at ℃ for 32 hours; after the polymerization reaction, pour it into acetone, a large amount of solids precipitate out, filter, and vacuum dry at 30℃ for 24 hours to obtain a light yellow powdery solid; water is used as a solvent for the resist, and water is used as a developer; high sensitivity The molecular formula of the molecular compound is shown below, and the characterization of the photosensitive polymer is shown in Table 4:

[0047]

[0048] Table 4 Characterization of photosensitive polymer compound P17

[0049] photopol...

Embodiment 3

[0052] Get 35g of BTB-26 m-cresol-formaldehyde resin produced by Taixing Orient Industrial Co., Ltd., the m-cresol-formaldehyde resin has a weight-average molecular weight of 4000 and a number-average molecular weight of 1500. P7-5 photosensitive polymer compound 15g, 3,5-bistrichloromethyl-1-p-methylchlorostyryl triazine 0.5g, basic brilliant blue 0.1g, cyclohexanone 300g; first dissolve each component In cyclohexanone, filter with 10 μm, 5 μm, and 0.5 μm pore size filter elements to obtain photosensitive CTP photosensitive imaging liquid PCL1-PCL5 that is sensitive to ultraviolet light; 2.38 wt % tetramethylammonium hydroxide solution is used as a developing solution.

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Abstract

The invention discloses a photosensitive imaging liquid containing an alpha-diazonium-1,3-diketone structure and used for a photosensitive macromolecule flat printing plate, belonging to the field of applied technologies of optical information recording materials. The imaging liquid comprises film forming resin, photosensitive resin, an acid generating agent, coloring background dye and a solvent, wherein the photosensitive resin contains the alpha-diazonium-1,3-diketone structure, the maximum absorption wavelength is 250-400 nm, a decomposition and rearrangement reaction occurs after ultraviolet irradiation or scanning, and the plate is changed to be hydrophilic and oleophylic after development. Because no free radical polymerization occurs, a protective layer needs not to be coated on the photosensitive imaging liquid containing the photosensitive resin and sensing ultraviolet light. A positive photosensitive CTP plate and a negative photosensitive CTP plate with high sensitivity, good resolution and high pressrun can be obtained by using the photosensitive imaging liquid.

Description

technical field [0001] The invention belongs to the technical field of application of optical information recording materials, and in particular relates to a photosensitive imaging solution for UV-sensitive polymer printing lithography containing α-diazo-1,3-diketone structure. Background technique [0002] Computer-to-plate technology (CTP technology) is a technology that uses highly directional light such as lasers to scan according to digital image information, thereby directly manufacturing printing plates without using lithographic printing films. CTP (computer to plate) plates are generally divided into three types: silver salt type, photopolymerization type, and thermal imaging type (heat sensitive). Since the launch of the Drupa2000 violet laser diode, the violet laser CTP technology has developed rapidly. The wavelength of the diode violet laser has reached 350nm in the ultraviolet region, and the power is close to 1w. Violet laser CTP has small light spot and high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/021
Inventor 刘陆邹应全
Owner TAIXING CITY ORIENT IND
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