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 patterned surface, which can solve the problems of increasing operation steps, interference with polymerization inhibition, and increasing costs, and achieves high sensitivity and durability. High SCPG, good resolution effect

Inactive Publication Date: 2010-12-29
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] The monomer methacrylic acid 2-(2-diazo-3-carbonyl-3-p-dimethylaminophenylpropionyloxy) ethyl ester 20.0 g, methyl methacrylate 8.1 g, methacrylic acid hydroxy Ethyl 7.0 grams and 0.6 grams of free radical polymerization initiator AIBN were dissolved in 500ml of tetrahydrofuran and reacted at 65°C for 30 hours; after the polymerization reaction, they were poured into petroleum ether. A large amount of solid precipitated out. Filtered and dried under vacuum at 30°C for 24 hours. A light yellow powdered solid is obtained, namely p7, where R1 is a methyl group, and the molecular formula of the obtained polymer compound is as follows, and its specific information is shown in Table 3:

[0041]

[0042] Table 3 Characterization of photosensitive polymer compound P7

[0043] Photosensitive polymer compound

[0044] When applied to positive photoresist compositions, the diazo groups of these polymer compounds will decompose when exposed to ultraviolet light, undergo Wolfe rearran...

Embodiment 2

[0046] Photosensitive polymer compound P17, where 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 methacrylamide, 4.0 grams of methylol acrylamide and 0.7 grams of radical polymerization initiator AIBN were dissolved in 500ml of a 2:1 acetonitrile:water mixed solvent, 65 Reacted at ℃ for 32 hours; after the polymerization reaction, it was poured into acetone, a large amount of solid precipitated out, filtered, and dried under vacuum at 30℃ for 24h to obtain a pale yellow powdery solid; water for resist was used as solvent and water as developer; high sensitivity The molecular formula of the molecular compound is shown below, and the characteristics of the photosensitive polymer are shown in Table 4:

[0047]

[0048] Table 4 Characterization of photosensitive polymer compound P17

[0049] Photosensitive polymer compound

Embodiment 3

[0052] Take 35 g of BTB-26 m-cresol-formaldehyde resin produced by Taixing Dongfang Industrial Co., Ltd., the weight-average molecular weight of the m-cresol-formaldehyde resin is 4000, and the number average molecular weight is 1500, and respectively add the P7-1 obtained in Preparation Example 1 to P7-5 photosensitive polymer compound 15g, 3,5-bistrichloromethyl-1-p-methylchlorostyryltriazine 0.5g, basic brilliant blue 0.1g, cyclohexanone 300g; first dissolve each component In cyclohexanone, filter with 10μm, 5μm, 0.5μm pore size filter element to obtain photosensitive CTP ultraviolet light sensitive imaging liquid PCL1-PCL5; 2.38wt% tetramethylammonium hydroxide solution is used as developer.

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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 particularly relates to an ultraviolet-sensitive polymer printing lithographic photosensitive imaging liquid containing an 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 in accordance with digital image information, thereby directly manufacturing printing plates without using lithographic printing film. CTP (computer to plate) plates are generally divided into three types: silver salt type, photopolymerization type, and thermal imaging type (thermal 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 spot size,...

Claims

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Application Information

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